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Pérez C, Ochoa D, Sánchez N, Ballesteros AI, Santidrián S, López I, Mondéjar R, Carnaval T, Villoria J, Colomer R. Pain in Long-Term Cancer Survivors: Prevalence and Impact in a Cohort Composed Mostly of Breast Cancer Survivors. Cancers (Basel) 2024; 16:1581. [PMID: 38672663 PMCID: PMC11049399 DOI: 10.3390/cancers16081581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Cancer survival is becoming more common which means that there is now a growing population of cancer survivors, in whom pain may be common. However, its prevalence has hardly been addressed systematically. We aimed to assess the prevalence and explore the pathophysiology and impact of pain on health outcomes in cancer survivors. We conducted a retrospective-prospective cohort study in cancer-free patients diagnosed with cancer at least five years before the study start date. We used multivariable regression to establish the association of patients' cancer characteristics with pain, and then the association of patients' pain features with health outcomes and related symptoms. Between March and July 2021, 278 long-term cancer survivors were evaluated. Almost half of them (130/278, 46.8%) had pain, of whom 58.9% had a probable neuropathic component, but only 18 (13.8%) were taking specific drugs for neuropathic pain. A history of surgery-related pain syndrome in breast cancer patients was more than twice as frequent in the pain cohort. Post-chemotherapy and post-radiotherapy pain syndromes were uncommon. Pain was associated with lower QoL, emotional functioning, professional performance, and disability scores. Pain is a frequent health determinant in cancer survivors. Referral to specialised pain services may be a reasonable move in some cases.
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Affiliation(s)
- Concepción Pérez
- Pain Clinic, Hospital de La Princesa, 28006 Madrid, Spain; (D.O.); (N.S.); (S.S.); (I.L.)
| | - Dolores Ochoa
- Pain Clinic, Hospital de La Princesa, 28006 Madrid, Spain; (D.O.); (N.S.); (S.S.); (I.L.)
| | - Noelia Sánchez
- Pain Clinic, Hospital de La Princesa, 28006 Madrid, Spain; (D.O.); (N.S.); (S.S.); (I.L.)
| | - Ana Isabel Ballesteros
- Department of Clinical Oncology, Hospital de la Princesa, 28006 Madrid, Spain; (A.I.B.); (R.M.); (R.C.)
| | - Sheila Santidrián
- Pain Clinic, Hospital de La Princesa, 28006 Madrid, Spain; (D.O.); (N.S.); (S.S.); (I.L.)
| | - Isabel López
- Pain Clinic, Hospital de La Princesa, 28006 Madrid, Spain; (D.O.); (N.S.); (S.S.); (I.L.)
| | - Rebeca Mondéjar
- Department of Clinical Oncology, Hospital de la Princesa, 28006 Madrid, Spain; (A.I.B.); (R.M.); (R.C.)
| | - Thiago Carnaval
- Department of Design and Biometrics, Medicxact, S.L., 28430 Alpedrete, Spain; (T.C.); (J.V.)
| | - Jesús Villoria
- Department of Design and Biometrics, Medicxact, S.L., 28430 Alpedrete, Spain; (T.C.); (J.V.)
| | - Ramón Colomer
- Department of Clinical Oncology, Hospital de la Princesa, 28006 Madrid, Spain; (A.I.B.); (R.M.); (R.C.)
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Amador P, Vega C, Navarro Pacheco NI, Moratalla-López J, Palacios J, Crettaz Minaglia MC, López I, Díaz M, Rico A. Effects of the fungicide azoxystrobin in two habitats representative of mediterranean coastal wetlands: A mesocosm experiment. Aquat Toxicol 2024; 267:106828. [PMID: 38176168 DOI: 10.1016/j.aquatox.2023.106828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/26/2023] [Accepted: 12/27/2023] [Indexed: 01/06/2024]
Abstract
This paper investigates the effects of the fungicide azoxystrobin, a compound widely used in rice farming, on aquatic communities representative of two habitats characteristic of Mediterranean wetland ecosystems: water springs and eutrophic lake waters. The long-term effects of azoxystrobin were evaluated on several structural (phytoplankton, zooplankton, macroinvertebrate populations and communities) and functional (microbial decomposition, macrophyte and periphyton growth) parameters making use of freshwater mesocosms. Azoxystrobin was applied in two pulses of 2, 20, 200 µg/L separated by 14 d using the commercial product ORTIVA (23 % azoxystrobin w/w). The results show that these two habitats responded differently to the fungicide application due to their distinct physico-chemical, functional, and structural characteristics. Although overall sensitivity was found to be similar between the two (lowest NOEC < 2 µg/L), the taxa and processes that were affected differed substantially. In general, the most sensitive species to the fungicide were found in the water spring mesocosms, with some species of phytoplankton (Nitzschia sp.) or macrocrustaceans (Echinogammarus sp. and Dugastella valentina) being significantly affected at 2 µg/L. In the eutrophic lake mesocosms, effects were found on phytoplankton taxa (Desmodesmus sp. and Coelastrum sp.), on numerous zooplankton taxa, on chironomids and on the beetle Colymbetes fuscus, although at higher concentrations. The hemipteran Micronecta scholtzi was affected in both treatments. In addition, functional parameters such as organic matter decomposition or macrophyte growth were also affected at relatively low concentrations (NOEC 2 µg/L). Structural Equation Modelling was used to shed light on the indirect effects caused by azoxystrobin on the ecosystem. These results show that azoxystrobin is likely to pose structural and functional effects on Mediterranean wetland ecosystems at environmentally relevant concentrations. Moreover, it highlights the need to consider habitat-specific features when conducting ecotoxicological research at the population and community levels.
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Affiliation(s)
- Pablo Amador
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, c/ Catedrático José Beltrán 2, Paterna, Valencia 46980, Spain
| | - Constanza Vega
- IMDEA Water Institute, Science and Technology Campus of the University of Alcalá, Av. Punto Com 2, Alcalá de Henares, Madrid 28805, Spain
| | - Natividad Isael Navarro Pacheco
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, c/ Catedrático José Beltrán 2, Paterna, Valencia 46980, Spain
| | - Jesús Moratalla-López
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, c/ Catedrático José Beltrán 2, Paterna, Valencia 46980, Spain
| | - Jose Palacios
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, c/ Catedrático José Beltrán 2, Paterna, Valencia 46980, Spain
| | - Melina Celeste Crettaz Minaglia
- IMDEA Water Institute, Science and Technology Campus of the University of Alcalá, Av. Punto Com 2, Alcalá de Henares, Madrid 28805, Spain
| | - Isabel López
- IMDEA Water Institute, Science and Technology Campus of the University of Alcalá, Av. Punto Com 2, Alcalá de Henares, Madrid 28805, Spain
| | - Mónica Díaz
- IMDEA Water Institute, Science and Technology Campus of the University of Alcalá, Av. Punto Com 2, Alcalá de Henares, Madrid 28805, Spain
| | - Andreu Rico
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, c/ Catedrático José Beltrán 2, Paterna, Valencia 46980, Spain; IMDEA Water Institute, Science and Technology Campus of the University of Alcalá, Av. Punto Com 2, Alcalá de Henares, Madrid 28805, Spain.
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Vasquez‐Salgado Y, Camacho TC, López I, Chavira G, Saetermoe CL, Khachikian C. “I definitely feel like a scientist”: Exploring science identity trajectories among Latinx students in a critical race theory‐informed undergraduate research experience. Infant and Child Development 2023. [DOI: 10.1002/icd.2371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
| | - Tissyana C. Camacho
- Department of Child and Adolescent Development California State University Northridge California USA
| | - Isabel López
- Department of Counseling, Clinical, and School Psychology University of California Santa Barbara California USA
| | - Gabriela Chavira
- Department of Psychology California State University Northridge California USA
| | - Carrie L. Saetermoe
- Department of Psychology California State University Northridge California USA
| | - Crist Khachikian
- Department of Civil Engineering and Construction Management California State University Northridge California USA
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López I, Rivera M, Félix N, Maestú C. It is mandatory to review environmental radiofrequency electromagnetic field measurement protocols and exposure regulations: An opinion article. Front Public Health 2022; 10:992645. [PMID: 36353271 PMCID: PMC9639819 DOI: 10.3389/fpubh.2022.992645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 10/12/2022] [Indexed: 01/26/2023] Open
Affiliation(s)
- Isabel López
- Departamento de Fotónica y Bioingeniería (TFB), Escuela Técnica Superior de Ingenieros de Telecomunicación, Universidad Politécnica de Madrid, Madrid, Spain,Laboratorio de Bioelectromagnetismo, Centro de Tecnología Biomédica, Universidad Politécnica de Madrid, Madrid, Spain
| | - Marco Rivera
- Laboratorio de Bioelectromagnetismo, Centro de Tecnología Biomédica, Universidad Politécnica de Madrid, Madrid, Spain
| | - Nazario Félix
- Laboratorio de Bioelectromagnetismo, Centro de Tecnología Biomédica, Universidad Politécnica de Madrid, Madrid, Spain,Departamento de Arquitectura y Tecnología de Sistemas Informáticos (DATSI), Escuela Técnica Superior de Ingenieros Informáticos, Universidad Politécnica de Madrid, Madrid, Spain
| | - Ceferino Maestú
- Departamento de Fotónica y Bioingeniería (TFB), Escuela Técnica Superior de Ingenieros de Telecomunicación, Universidad Politécnica de Madrid, Madrid, Spain,Laboratorio de Bioelectromagnetismo, Centro de Tecnología Biomédica, Universidad Politécnica de Madrid, Madrid, Spain,CIBER–BBN Centro de Investigación Biomédica en Red, Madrid, Spain,*Correspondence: Ceferino Maestú
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Puyalto A, Rodríguez-Remírez M, López I, Olmedo M, Vilalta A, Welch C, Vicent S, Calvo A, Gil-Bazo I. MA02.08 Trametinib Inhibition of MEK1 2 Upregulates PD-L1 Expression in KRAS-Mutant NSCLC Through ID1 Downregulation. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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López I, Förster J. Trastornos del neurodesarrollo: dónde estamos hoy y hacia dónde nos dirigimos. Revista Médica Clínica Las Condes 2022. [DOI: 10.1016/j.rmclc.2022.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Förster J, López I. Neurodesarrollo humano: un proceso de cambio continuo de un sistema abierto y sensible al contexto. Revista Médica Clínica Las Condes 2022. [DOI: 10.1016/j.rmclc.2022.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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López I, Félix N, Rivera M, Alonso A, Maestú C. Response to the comments by the authors Hamed Jalilian et al. On: "What is the radiation before 5G? A correlation study between measurements in situ and in real time and epidemiological indicators in Vallecas, Madrid", by I. López, N. Félix, M. Rivera, A. Alonso, and C. Maestú. Environmental Health 10.1016/j.envres.2021.110734. Environ Res 2022; 209:112850. [PMID: 35120889 DOI: 10.1016/j.envres.2022.112850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Isabel López
- Polytechnique University of Madrid, UPM, Madrid, Spain.
| | | | - Marco Rivera
- Biomedical Technology Center, CTB, Madrid, Spain
| | | | - Ceferino Maestú
- Polytechnique University of Madrid, UPM, Madrid, Spain; CIBER - BBN, Madrid, Spain
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García R, Irarrázaval M, López I, Riesle S, Cabezas M, Moyano A, Garrido G, Valdez D, S de Paula C, Rosoli A, Cukier S, Montiel-Nava C, Rattazzi A. [Survey for Caregivers of People with Autism Spectrum in Chile: Access to Health and Education Services, Satisfaction, Quality of Life And Stigma]. Andes Pediatr 2022; 93:351-360. [PMID: 35857006 DOI: 10.32641/andespediatr.v93i3.3994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 11/22/2021] [Indexed: 06/15/2023]
Abstract
INTRODUCTION People on the Autism Spectrum (AS) face multiple health, education, social, and economic pro blems. There is limited available information in Chile. OBJECTIVE To describe the access and satisfac tion with health and education services, family and economic impact, stigma, and quality of life of people with AS and their families in Chile. SUBJECTS AND METHOD Parents/caregivers of AS persons completed the Caregiver Needs Survey, developed by Autism Speaks, which includes demographic information, characteristics of AS persons (previously published), use of health and education servi ces, parents/caregivers' perceptions of satisfaction, impact, stigma, and quality of life. RESULTS 291 caregivers (86% mothers) of 291 AS persons participated, 89% were male, aged 1-40 years (X:10.4 SD:6.1). Limited and unspecific access to health services is reported. 77% are regularly attending a standard or special school system. Families pay for over 60% of therapies/medical care and over 40% of specific educational support, and 25% report difficulties in accessing services. The family income is affected by resignation (35%) or reduced working hours (46%). Stigma is associated with possi ble discrimination and feelings of helplessness. The main priorities mentioned for a better quality of life are support for inclusive schooling, better adjustment at home, and improved socialization. CONCLUSIONS This survey provides relevant information about the needs, barriers, and challenges of AS people in Chile and highlights the difficulties in accessing health services and the severe impact on family income. Feelings of stigma, discrimination, and helplessness are reported. Collaborative strategies are needed to improve the quality and access to services and to reduce the economic and mental health burden on the family.
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Affiliation(s)
- Ricardo García
- Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | | | - Isabel López
- Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Sofía Riesle
- Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Marcia Cabezas
- Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Andrea Moyano
- Facultad de Medicina, Universidad de Chile, Santiago, Chile
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López I, Félix N, Alonso A, Rivera M, Maestú C. Response to the comments on: "What is the radiation before 5G? A correlation study between measurements in situ and in real time and epidemiological indicators in Vallecas, Madrid", by I. López, N. Félix, M. Rivera, A. Alonso, and C. Maestú. Environmental Health 10.1016/j.envres.2021.110734. Environ Res 2022; 208:112193. [PMID: 34678254 DOI: 10.1016/j.envres.2021.112193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- Isabel López
- Polytechnic University of Madrid, UPM, Madrid, Spain.
| | | | | | - Marco Rivera
- Biomedical Technology Center, CTB, Madrid, Spain
| | - Ceferino Maestú
- Biomedical Technology Center, CTB, Madrid, Spain; CIBER - BBN, Spain
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Carrizo D, de Dios-Cubillas A, Sánchez-García L, López I, Prieto-Ballesteros O. Interpreting Molecular and Isotopic Biosignatures in Methane-Derived Authigenic Carbonates in the Light of a Potential Carbon Cycle in the Icy Moons. Astrobiology 2022; 22:552-567. [PMID: 35325553 DOI: 10.1089/ast.2021.0036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Finding evidence of life beyond Earth is the aim of future space missions to icy moons. Icy worlds with an ocean underlying the icy crust and in contact with a rocky subsurface have great astrobiological interest due to the potential for water-rock interactions that may provide a source of nutrients necessary to sustain life. Such water-rock interactions in icy moons can be indirectly investigated using analogous environments on the deep seafloor on Earth. Here, we investigate the presence of molecular and isotopic biomarkers in two submarine cold seep systems with intense rock-fluid interactions and carbon sink as carbonates with the aim of gaining understanding of potential carbon cycles in the icy worlds' oceans. Authigenic carbonates associated to cold seeps (a chimney from the Gulf of Cádiz and a clathrite from the Pacific Hydrate Ridge) were investigated for their mineralogical composition and lipid biomarker distribution. Molecular and compound-specific isotopic composition of lipid biomarkers allowed us to infer different carbonate origins in both carbonate scenarios: biogenic methane (clathrite) versus thermogenic methane together with allochthonous carbon (chimney). In the Pacific cold seep, carbonate precipitation of the clathrite was deduced to result from the anaerobic oxidation of methane by syntrophic action of methanotrophic archaea with sulfate-reducing bacteria. The distinct carbon sources (thermogenic methane, pelagic biomass, etc.) and sinks (gas clathrates, clathrite, chimney carbonates) were discussed in the light of potentially similar carbon cycling pathways in analogous icy-moon oceans. We show how the isotopic analysis of carbon may be crucial for detecting biosignatures in icy-world carbon sinks. These considerations may affect the strategy of searching for biosignatures in future space missions to the icy worlds.
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Affiliation(s)
- D Carrizo
- Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz, Madrid, Spain
| | - A de Dios-Cubillas
- Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz, Madrid, Spain
- Department of Biology, Geology, Physics and Inorganic Chemistry, King Juan Carlos University, Móstoles, Madrid, Spain
| | - L Sánchez-García
- Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz, Madrid, Spain
| | - I López
- Department of Biology, Geology, Physics and Inorganic Chemistry, King Juan Carlos University, Móstoles, Madrid, Spain
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Rivera González MX, Félix González N, López I, Ochoa Zambrano JS, Miranda Martínez A, Maestú Unturbe C. Compact Exposimeter Device for the Characterization and Recording of Electromagnetic Fields from 78 MHz to 6 GHz with Several Narrow Bands (300 kHz). Sensors (Basel) 2021; 21:s21217395. [PMID: 34770707 PMCID: PMC8588337 DOI: 10.3390/s21217395] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 10/31/2021] [Accepted: 11/04/2021] [Indexed: 12/23/2022]
Abstract
A novel compact device with spectrum analyzer characteristics has been designed, which allows the measuring of the maximum power received in multiple narrow frequency bands of 300 kHz, recording the entire spectrum from 78 MHz to 6 GHz; the device is capable of measuring the entire communications spectrum and detecting multiple sources of electromagnetic fields using the same communications band. The proposed device permits the evaluation of the cross-talk effect that, in conventional exposimeters, generates a mistake estimation of electromagnetic fields. The device was calibrated in an anechoic chamber for far-fields and was validated against a portable spectrum analyzer in a residential area. A strong correlation between the two devices with a confidence higher than 95% was obtained; indicating that the device could be considered as an important tool for electromagnetic field studies.
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Affiliation(s)
- Marco Xavier Rivera González
- Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain; (N.F.G.); (I.L.); (A.M.M.); (C.M.U.)
- Correspondence:
| | - Nazario Félix González
- Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain; (N.F.G.); (I.L.); (A.M.M.); (C.M.U.)
| | - Isabel López
- Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain; (N.F.G.); (I.L.); (A.M.M.); (C.M.U.)
| | | | - Andrés Miranda Martínez
- Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain; (N.F.G.); (I.L.); (A.M.M.); (C.M.U.)
| | - Ceferino Maestú Unturbe
- Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain; (N.F.G.); (I.L.); (A.M.M.); (C.M.U.)
- Networking Research Center of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
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Consoli AJ, López I, Whaling KM. Alternate Cultural Paradigms in Latinx Psychology: An Empirical, Collaborative Exploration. Journal of Humanistic Psychology 2021. [DOI: 10.1177/00221678211051797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In an effort to systematize and organize an exploration of alternate cultural paradigms from a Latinx perspective, the membership of the National Latinx Psychological Association was surveyed via its electronic mailing list in successive rounds. The first invitation asked members to identify alternate cultural paradigms they use in their work or are familiar with; a definition of alternate cultural paradigms and some examples were provided. Responses were summarized and redistributed to the entire list, seeking further input. This process was followed a total of four times. The range of contributions extended from journal articles, to books, to authors, individuals, and movements. The compiled responses were then analyzed using qualitative methodology in the form of thematic analysis. The resulting taxonomy addresses the promotion of health and wellness in Latinx communities through the use of alternate cultural paradigms, and culturally adapted treatments and interventions. The former is made of examples and sources that emphasize combatting oppression and inequities as well as the use of cultural traditions, norms, and specific values. Though not identified as exemplary of alternate cultural paradigms, the latter refers to evidence-based or widely used treatments that have been modified (i.e., adapted) in an effort to improve service efficacy with Latinxs.
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Puyalto A, Rodriguez-Remirez M, López I, Iribarren F, Ecay M, Collantes M, Vilalta-Lacarra A, Gil-Bazo I. P12.01 A Novel 89Zr-α-PD-1 Immuno-PET-CT May Improve Pseudoprogression Detection in a Lung Cancer Murine Model Receiving Immunotherapy. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Salazar I, López I, Glorio-Paulet P, Gomez C. Aflatoxin B1 contamination of feedstuff on a dairy farm in Northern Peru and aflatoxin M1 concentrations in raw milk. WORLD MYCOTOXIN J 2021. [DOI: 10.3920/wmj2020.2672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Research regarding aflatoxin contamination levels in Peru is limited, although aflatoxin M1 (AFM1) and aflatoxin B1 (AFB1) require surveillance because of their toxicity. European regulations state that the harmonised maximum level (ML) is 5 μg/kg for AFB1 in feedstuffs and 0.05 μg/kg for AFM1 in milk. Our study aimed to determine the annual variation levels of AFB1 in ingredients used in feedstuffs for dairy cows and those of AFM1 in milk at a typical intensive dairy farm in Northern Peru. For 1 year, milk (n=529) and feedstuff samples (n=235) were collected and aflatoxin levels were determined using a lateral flow immunoassay. We found that 16% of milk samples had AFM1 contamination above the ML. AFM1 level was significantly higher (P<0.05) in December (end of spring) than that in all other months. Throughout the year, the most used feedstuffs were maize, soybean meal and whole soybean. Among the maize samples (n=77), 2.59% had an AFB1 level above the ML, whereas 45% had an AFB1 level below the ML. On the other hand, neither the soybean meal (n=69) nor whole soybean samples (n=64) had an AFB1 level above the ML, 46.4 and 20%, respectively. In 50% (n=10) of cottonseed meal samples, AFB1 level was above the ML; in 20% of wheat middling samples, it was above the ML. Cottonseed and wheat middling samples were used for 2 and 5 months, respectively. AFB1 level in feedstuff showed a significant difference in December (P<0.05) compared with other months, specifically for maize and soybean meal. As the AFM1 level in milk results from AFB1 contaminated feedstuff, our results emphasise the need to implement specific quality measures to reduce contamination.
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Affiliation(s)
- I. Salazar
- Facultad de Zootecnia, Universidad Nacional Agraria La Molina, Av. La Molina s/n, Lima, Perú
| | - I. López
- Producciones Ganaderas Andinas SAC, Av. Industrial Nro. 741, Lima, Perú
| | - P. Glorio-Paulet
- Facultad Industrias Alimentarias, Universidad Nacional Agraria La Molina, Av. La Molina s/n, Lima, Perú
| | - C. Gomez
- Facultad de Zootecnia, Universidad Nacional Agraria La Molina, Av. La Molina s/n, Lima, Perú
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Basterra J, Oishi N, López I, Otero M, Sánchez A, Zapater E. Use of monopolar microelectrodes and radiofrequency in the treatment of arytenoid edema after partial horizontal laryngectomy and radiotherapy. Head Neck 2021; 43:3245-3248. [PMID: 34309107 DOI: 10.1002/hed.26823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 07/07/2021] [Accepted: 07/19/2021] [Indexed: 11/11/2022] Open
Abstract
We evaluated the tissue reduction effects using monopolar microelectrodes (MME) coupled to a radiofrequency (RF) generator in arytenoid edema caused by postoperative radiotherapy in larynx. This is a retrospective transversal study, which included 15 patients with supraglottic laryngeal carcinoma. All the patients had undergone a partial horizontal laryngectomy and bilateral neck dissection followed by postoperative radiotherapy. The studied group of patients presented laryngeal stenosis defined by arytenoid edema as a complication, requiring permanent tracheostomy for mean of 12 months. The surgical procedure for treating the edema was the transoral approach of the larynx by microlaryngoscopy under general anesthesia; using 180° MME coupled to a 4-MHz RF generator delivering 15 W using coagulation mode. A total of 11 (73%) patients were decannulated. The median time for decannulation was 10 weeks. No complications were reported. After 2 years of follow-ups, no case of re-stenosis was found. MME coupled to RF is a very efficient method to treat arytenoid edema after adjuvant radiotherapy.
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Affiliation(s)
- Jorge Basterra
- Valencia Medical School, University General Hospital of Valencia, Valencia, Spain
| | - Natsuki Oishi
- ENT Department, University General Hospital of Valencia, Valencia, Spain
| | - Isabel López
- ENT Department, University General Hospital of Valencia, Valencia, Spain
| | - María Otero
- Department of Anesthesia, University General Hospital of Valencia, Valencia, Spain
| | - Alvaro Sánchez
- ENT Department, University General Hospital of Valencia, Valencia, Spain
| | - Enrique Zapater
- Valencia Medical School, University General Hospital of Valencia, Valencia, Spain.,ENT Department, University General Hospital of Valencia, Valencia, Spain
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López I, Félix N, Rivera M, Alonso A, Maestú C. What is the radiation before 5G? A correlation study between measurements in situ and in real time and epidemiological indicators in Vallecas, Madrid. Environ Res 2021; 194:110734. [PMID: 33434609 DOI: 10.1016/j.envres.2021.110734] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 12/28/2020] [Accepted: 01/06/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Exposure of the general population to electromagnetic radiation emitted by mobile phone base stations is one of the greater concerns of residents affected by the proximity of these structures due to the possible relationship between radiated levels and health indicators. OBJECTIVES This study aimed to find a possible relationship between some health indicators and electromagnetic radiation measurements. METHODS A total of 268 surveys, own design, were completed by residents of a Madrid neighborhood surrounded by nine telephone antennas, and 105 measurements of electromagnetic radiation were taken with a spectrum analyzer and an isotropic antenna, in situ and in real - time, both outside and inside the houses. RESULTS It was shown statistically significant p - values in headaches presence (p = 0.010), nightmares (p = 0.001), headache intensity (p < 0.001), dizziness frequency (p = 0.011), instability episodes frequency (p = 0.026), number of hours that one person sleeps per day (p < 0.001) and three of nine parameters studied from tiredness. Concerning cancer, there are 5.6% of cancer cases in the study population, a percentage 10 times higher than that of the total Spanish population. DISCUSSION People who are exposed to higher radiation values present more severe headaches, dizziness and nightmares. Moreover, they sleep fewer hours.
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Affiliation(s)
- Isabel López
- Polytechnic University of Madrid, UPM, Madrid, Spain.
| | | | - Marco Rivera
- Biomedical Technology Center, CTB, Madrid, Spain
| | | | - Ceferino Maestú
- Biomedical Technology Center, CTB, Madrid, Spain; CIBER - BBN, Spain
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García R, Irarrázaval M, López I, Riesle S, Cabezas M, Moyano A. Survey for caregivers of people in the autism spectrum in Chile: first concerns, age of diagnosis and clinical characteristics. ACTA ACUST UNITED AC 2021; 92:25-33. [PMID: 34106180 DOI: 10.32641/andespediatr.v92i1.2307] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 09/13/2020] [Indexed: 11/12/2022]
Abstract
INTRODUCTION Autism Spectrum Disorders (ASD) are neurodevelopmental disorders of increasing prevalence. People with ASD have multiple health, education, and community needs, yet there is little information about their situation in Chile. OBJECTIVE To learn about the demographic and clinical characteristics, caregiver's first concerns, and age of diagnosis of ASD individuals. PATIENTS AND METHOD Participants were parents/caregivers of ASD persons, who answered the Caregiver Needs Survey, developed by Autism Speaks specifically for this purpose, and translated into Spanish. The survey is comprised of 4 sections: demographic information, characteristics of the ASD individual, past and present use of Health and Education Services, and parents/caregivers' perceptions of satisfaction, impact, stigma, and quality of life. Data from the first two sections are reported in this paper. RESULTS The survey was answered by 291 caregivers (86% mothers) of 291 mostly male ASDs (89%), aged between 1-40 years (X: 10.4 SD: 6.1). The average age of parents' first concerns was 29.2m (SD: 23.8) where the main ones were: interaction difficulties (79.4%), unusual response to sensory stimuli (69.8%), behavioral problems (65.3%), unusual gestures/movements (64.3%), and lack of eye contact (63.6%). The ave rage age of diagnosis was 58m (SD: 36.5), with an average delay of diagnosis of 29m. The diagnosis was most frequently made by pediatric neurologists (44.7%), child psychiatrists (19.2%), and pedia tricians (5.5%). The most frequent comorbidities were language impairment, cognitive deficit, and behavioral problems. CONCLUSIONS The late age of diagnosis of ASD and the large gap between the age of first concerns and diagnosis, represent a critical loss of treatment opportunities and jeopardize the chances of a better long-term outcome.
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Affiliation(s)
- Ricardo García
- Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | | | - Isabel López
- Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Sofía Riesle
- Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Marcia Cabezas
- Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Andrea Moyano
- Facultad de Medicina, Universidad de Chile, Santiago, Chile
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Guevara P, Pérez-Alberti A, Carballo R, Sánchez M, López I, Otero XL. Impact of serpentinized peridotite mine waste on the composition and quality of sediments in the Ría de Ortigueira (Galicia, NW Spain). Mar Pollut Bull 2021; 163:111963. [PMID: 33486404 DOI: 10.1016/j.marpolbul.2020.111963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 12/07/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
The Ría de Ortigueira is an environmentally well conserved; however, the sediments show high concentrations of toxic elements. In some zones, the concentrations of Ni (60-1080 mg kg-1) and Cr (9-567 mg kg-1) were extremely high, while the concentrations of other toxic elements were within normal ranges. PCA revealed that metal enrichment was due to dumping of waste sludge from a peridotite mine. The study of marine currents showed that the exit of the contaminated waste towards the external zone is restricted by the low energy of the residual currents, and the sludge therefore remains trapped in the internal zones. The potential ecological risk was moderate for all areas of the ría, reaching high values close to the mouth of the river Landoi. Finally, geochemical fractioning showed that most of the metals are associated with Fe oxyhydroxides which can become unstable and release adsorbed or coprecipitated metals, especially Ni.
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Affiliation(s)
- P Guevara
- CRETUS Institute, Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, Universidade de Santiago de Compostela, Spain; Departamento de Ciencias de la Tierra y la Construcción, Universidad de las Fuerzas Armadas ESPE, Av. General Rumiñahui s/n, P.O. Box 171-5-231B, Sangolquí, Ecuador
| | - A Pérez-Alberti
- CRETUS Institute, Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, Universidade de Santiago de Compostela, Spain
| | - R Carballo
- Área de Ingeniería Hidráulica, EPSE, Univ. de Santiago de Compostela, 27002 Lugo, Spain
| | - M Sánchez
- Área de Ingeniería Hidráulica, EPSE, Univ. de Santiago de Compostela, 27002 Lugo, Spain
| | - I López
- Área de Ingeniería Hidráulica, EPSE, Univ. de Santiago de Compostela, 27002 Lugo, Spain
| | - X L Otero
- CRETUS Institute, Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, Universidade de Santiago de Compostela, Spain; REBUSC, Rede de Estacións Biolóxicas da Universidade de Santiago de Compostela, Facultade de Bioloxía, Universidade de Santiago de Compostela, Galicia, Spain.
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20
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Hansen VL, López I. Geologic Map of Aphrodite Map Area (AMA; I-2476), Venus. Earth Space Sci 2020; 7:e2019EA001066. [PMID: 33134435 PMCID: PMC7583386 DOI: 10.1029/2019ea001066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 06/08/2020] [Accepted: 06/13/2020] [Indexed: 06/11/2023]
Abstract
We present a 1:10-M-scale geologic map of the Aphrodite Map Area (AMA) of Venus (0°N-57°S/60-80°E). Geologic mapping employed NASA Magellan synthetic aperture radar and altimetry data. The AMA geologic map, with detailed structural elements and geologic units covering over one eighth of Venus' surface, affords an important and unique perspective to test models of global-scale geologic processes through time. Geologic relations record a history inconsistent with global catastrophic resurfacing. The AMA displays a regional coherence of preserved geologic patterns that record three sequential geologic eras: the ancient era, the Artemis superstructure era, and the youngest fracture zone era. The ancient era and Artemis superstructure, with a footprint covering more than 25% of the surface, are recorded in the Niobe Map Area to the north. The latter two eras likely overlap in time. The fracture zone domain, part of a globally extensive province, marks the most spatially focused tectonomagmatic domain within the AMA. Impact craters are both cut by and overprint fracture zone structures. Twelve percent of AMA impact craters that occur within the fracture zone domain predate or formed during fracture zone development. This observation indicates the relative youth of the fracture zone era and is consistent with the possibility that this domain remains geologically active. The AMA records a rich geologic history of large tract of the surface of Venus and provides an important framework to formulate new working hypotheses of Venus evolution and contribute to planning future studies of the surface of planets.
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Affiliation(s)
- V. L. Hansen
- Department of Earth and Environmental SciencesUniversity of Minnesota, DuluthDuluthMNUSA
| | - I. López
- Department of Biology and Geology, Physics and Inorganic Chemistry, Área de GeologíaUniversidad Rey Juan CarlosMóstoles, MadridSpain
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21
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Luque L, Rodrigo T, García-García JM, Casals M, Millet JP, Caylà J, Orcau A, Agüero R, Alcázar J, Altet N, Altube L, Álvarez F, Anibarro L, Barrón M, Bermúdez P, Bikuña E, Blanquer R, Borderías L, Bustamante A, Calpe J, Caminero J, Cañas F, Casas F, Casas X, Cases E, Castejón N, Castrodeza R, Cebrián J, Cervera A, Ciruelos J, Delgado A, De Souza M, Díaz D, Domínguez M, Fernández B, Gallardo J, Gallego M, Clemente MG, García C, García F, Garros F, Gort A, Guerediaga A, Gullón J, Hidalgo C, Iglesias M, Jiménez G, Jiménez M, Kindelan J, Laparra J, López I, Lera R, Lloret T, Marín M, Lacasa XM, Martínez E, Martínez A, Medina J, Melero C, Milà C, Millet J, Mir I, Molina F, Morales C, Morales M, Moreno A, Moreno V, Muñoz A, Muñoz C, Muñoz J, Muñoz L, Oribe M, Parra I, Penas A, Pérez J, Rivas P, Rodríguez J, Ruiz-Manzano J, Sala J, Sandel D, Sánchez M, Sánchez M, Sánchez P, Santamaría I, Sanz F, Serrano A, Somoza M, Tabernero E, Trujillo E, Valencia E, Valiño P, Vargas A, Vidal I, Vidal R, Villanueva M, Villar A, Vizcaya M, Zabaleta M, Zubillaga G. Factors Associated With Extrapulmonary Tuberculosis in Spain and Its Distribution in Immigrant Population. Open Respiratory Archives 2020. [DOI: 10.1016/j.opresp.2020.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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22
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Not A, Salvador F, Goterris L, Sulleiro E, López I, Balladares M, García E, Paz C, Sánchez-Montalvá A, Bosch-Nicolau P, Sao-Avilés A, Molina I. Microscopic examination after concentration techniques for Blastocystis sp. detection in serial faecal samples: How many samples are needed? Parasite Epidemiol Control 2020; 9:e00137. [PMID: 32055721 PMCID: PMC7005442 DOI: 10.1016/j.parepi.2020.e00137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 01/08/2020] [Accepted: 01/09/2020] [Indexed: 11/02/2022] Open
Abstract
Objective Blastocystis sp. is one of the most frequently observed intestinal parasites in humans. It is suggested that sensitivity of classical parasitological tests for the Blastocystis sp. diagnosis increases when increasing the number of investigated samples, although there is a lack of information. The aim of the study is to evaluate the sensitivity of classical parasitological tests for the Blastocystis sp. diagnosis depending on the number of investigated samples and to determine risk factors associated to high parasite burden. Methods Retrospective study where patients in whom three consecutive stool samples were examined for parasitic diagnosis through microscopic examination at Vall d'Hebron University Hospital (Barcelona, Spain) from January to April 2019 were included. To determine risk factors associated to high parasite burden, a case-control study was performed including patients with at least one positive stool sample for Blastocystis sp.: cases were those patients with only one or two positive stool samples, and controls were those with all three stool positive samples). Clinical records were reviewed from included patients to collect clinical and demographic information. Results In 2771 patients three consecutive stool samples were examined for parasitic diagnosis, with an overall prevalence of Blastocystis sp. detection of 23.3%. The proportions of positive cases depending on the number of investigated samples were: 22.3% when taking into account the first sample, 22.9% when taking into account the first and second samples, and 23.3% when taking into account the three samples, with no statistically significant differences among them. For the case-control study we finally included 63 cases and 133 controls. No differences were found regarding clinical and demographic characteristics among groups. Conclusion Prevalence of Blastocystis sp. infection was high in our study (23.3%). The sensitivity of classical parasitological methods for Blastocystis sp. diagnosis did not increase when increasing the number of investigated samples, and no risk factors associated to high parasite burden were identified.
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Affiliation(s)
- Anna Not
- Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Fernando Salvador
- Department of Infectious Diseases, Vall d'Hebron University Hospital, PROSICS, Barcelona, Barcelona, Spain
| | - Lidia Goterris
- Department of Microbiology, Vall d'Hebron University Hospital, PROSICS, Barcelona, Barcelona, Spain
| | - Elena Sulleiro
- Department of Microbiology, Vall d'Hebron University Hospital, PROSICS, Barcelona, Barcelona, Spain
| | - Isabel López
- Department of Microbiology, Vall d'Hebron University Hospital, PROSICS, Barcelona, Barcelona, Spain
| | - Martha Balladares
- Department of Microbiology, Vall d'Hebron University Hospital, PROSICS, Barcelona, Barcelona, Spain
| | - Elena García
- Department of Microbiology, Vall d'Hebron University Hospital, PROSICS, Barcelona, Barcelona, Spain
| | - Carmen Paz
- Department of Microbiology, Vall d'Hebron University Hospital, PROSICS, Barcelona, Barcelona, Spain
| | - Adrián Sánchez-Montalvá
- Department of Infectious Diseases, Vall d'Hebron University Hospital, PROSICS, Barcelona, Barcelona, Spain
| | - Pau Bosch-Nicolau
- Department of Infectious Diseases, Vall d'Hebron University Hospital, PROSICS, Barcelona, Barcelona, Spain
| | - Augusto Sao-Avilés
- Department of Infectious Diseases, Vall d'Hebron University Hospital, PROSICS, Barcelona, Barcelona, Spain
| | - Israel Molina
- Department of Infectious Diseases, Vall d'Hebron University Hospital, PROSICS, Barcelona, Barcelona, Spain
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23
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Boned A, Diaz MD, Buey MA, Marco S, López I, Karlsruher G, Montes P, Ascaso FJ. Conjunctival lymphoma a case report. Acta Ophthalmol 2019. [DOI: 10.1111/j.1755-3768.2019.5282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Ana Boned
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Maria Dolores Diaz
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Maria Angeles Buey
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Sara Marco
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Isabel López
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Gisela Karlsruher
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Paula Montes
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
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Diaz MD, Boned A, Buey MA, Marco S, López I, Karlsruher G, Montes P, Ascaso FJ. Role of interferon alpha 2b (IFN‐α2b) in the treatment of conjunctive squamous neoplasia. Acta Ophthalmol 2019. [DOI: 10.1111/j.1755-3768.2019.5280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maria Dolores Diaz
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Ana Boned
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Maria Angeles Buey
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Sara Marco
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Isabel López
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Gisela Karlsruher
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Paula Montes
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
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25
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Karlsruher G, Montes P, Marco S, López I, Dolores Díaz M, Boned A, Ramiro P, Javier Ascaso F. A case of choroidal osteoma in a 5‐year‐old child. Acta Ophthalmol 2019. [DOI: 10.1111/j.1755-3768.2019.5298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
| | - Paula Montes
- Department of Ophthalmology HCU Lozano Blesa Zaragoza, Spain
| | - Sara Marco
- Department of Ophthalmology HCU Lozano Blesa Zaragoza, Spain
| | - Isabel López
- Department of Ophthalmology HCU Lozano Blesa Zaragoza, Spain
| | | | - Ana Boned
- Department of Ophthalmology HCU Lozano Blesa Zaragoza, Spain
| | - Patricia Ramiro
- Department of Ophthalmology HCU Lozano Blesa Zaragoza, Spain
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Montes P, Karlsruher G, Boned A, Díaz MD, Marco S, López I, Pérez D, Ascaso FJ. Retrospective descriptive study on diagnosed patients of choroidal metastases. Acta Ophthalmol 2019. [DOI: 10.1111/j.1755-3768.2019.5299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Paula Montes
- Department of Ophthalmology HCU Lozano Blesa Zaragoza Spain
| | | | - Ana Boned
- Department of Ophthalmology HCU Lozano Blesa Zaragoza Spain
| | | | - Sara Marco
- Department of Ophthalmology HCU Lozano Blesa Zaragoza Spain
| | - Isabel López
- Department of Ophthalmology HCU Lozano Blesa Zaragoza Spain
| | - Diana Pérez
- Department of Ophthalmology HCU Lozano Blesa Zaragoza Spain
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Montes P, Karlsruher G, Boned A, Dolores Díaz M, Marco S, López I, Esteban O, Javier Ascaso F. Study about the association between diabetic macular edema and avascular foveal area, diameter and thickness of the superficial and deep retinal plexuses. Acta Ophthalmol 2019. [DOI: 10.1111/j.1755-3768.2019.5271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Paula Montes
- Department of Ophthalmology HCU Lozano Blesa Zaragoza Spain
| | | | - Ana Boned
- Department of Ophthalmology HCU Lozano Blesa Zaragoza Spain
| | | | - Sara Marco
- Department of Ophthalmology HCU Lozano Blesa Zaragoza Spain
| | - Isabel López
- Department of Ophthalmology HCU Lozano Blesa Zaragoza Spain
| | - Olivia Esteban
- Department of Ophthalmology HCU Lozano Blesa Zaragoza Spain
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Dolores Diaz M, Boned A, Martínez J, Marco S, López I, Karlsruher G, Montes P, Javier Ascaso F. Uveitis‐glaucoma‐ hyphema syndrome (UGH) as complication in the long‐term cataract surgery. Acta Ophthalmol 2019. [DOI: 10.1111/j.1755-3768.2019.5276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Maria Dolores Diaz
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Ana Boned
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Juana Martínez
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Sara Marco
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Isabel López
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Gisela Karlsruher
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
| | - Paula Montes
- Department of Ophthalmology Hospital Clínico Universitario “Lozano Blesa” Zaragoza Spain
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Pagán JI, Bañón L, López I, Bañón C, Aragonés L. Monitoring the dune-beach system of Guardamar del Segura (Spain) using UAV, SfM and GIS techniques. Sci Total Environ 2019; 687:1034-1045. [PMID: 31412441 DOI: 10.1016/j.scitotenv.2019.06.186] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 06/11/2019] [Accepted: 06/12/2019] [Indexed: 06/10/2023]
Abstract
Dune ecosystems play a key role in coastal dynamics, so it is essential to measure their movements with high precision and monitor their changes over time. It is crucial to have a system that allows us to know the natural and anthropic impacts affecting these ecosystems. The aim of this study is to ascertain the historical evolution of the dune system of Guardamar del Segura (Spain) and its relationship with coastal erosion. Likewise, it is also intended to assess the state of the foredune restoration works carried out in 2011. To this end, a comparison of existing cartographic data has been undertaken by using geospatial analysis techniques through Geographic Information Systems (GIS). As a novelty, a low takeoff weight UAV (Unmanned Aerial Vehicle) has been used to produce a high-precision 3D model from two-dimensional images using photogrammetric techniques, such as Structure from Motion (SfM). This technique made it possible to obtain a digital terrain model of high density and precision (30 pt/m2 and RMSE Z of 0.173 m). The results show a constant erosion of both the beach and the foredune, with an overall loss of 143,561 m3 of material in the period analyzed (2001-2017). The anthropogenic restoration actions executed within this period have not been effective. In fact, erosion has increased in the period 2016-2017, with a significant reduction in the beach width and sea waves directly affecting the foredune. The main conclusion is that the combined use of UAV and SfM techniques is an excellent procedure to periodically supervise dune ecosystems with high precision and significant time and cost savings.
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Affiliation(s)
- J I Pagán
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - L Bañón
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - I López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - C Bañón
- AIRLAB, Singapore University of Technology and Design, 8 Somapah Road, 487372, Singapore
| | - L Aragonés
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain.
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Zabaleta J, Gaspar B, Etxeberria I, Cruzado M, Aguinagalde B, López I, Fernandez-Monge A, Izquierdo J, Hernando-Trancho F. EP1.16-08 Behobiamediopulmon: Putting Face and Running Shoes on Patients with Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Palazón A, López I, Gilart V, Aragonés L, Marcos-Jorquera D, Foti D. New ICT-based index for beach quality management. Sci Total Environ 2019; 684:221-228. [PMID: 31153069 DOI: 10.1016/j.scitotenv.2019.05.346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 05/23/2019] [Accepted: 05/23/2019] [Indexed: 06/09/2023]
Abstract
Beach management is based on administering technical, environmental, social and political issues to solve coastal problems. To assist coastal management, quality systems have evolved from Beach Certifications Schemes to indicator systems that take into account the three beach functions -natural, protection and recreation-. This study analyses: i) The usefulness of current indices for management decision making; ii) whether the beach user can both access information and participate in beach management; iii) whether the beach indices are dynamic, providing up-to-date information on the status quo of beach or is it merely a snapshot in time; iv) whether beach indices deliver the same result when used by different beach technicians. The results show that the current systems are subjective and based on static criteria, since most of them are obtained through expert opinion, visual inspection and/or interpretation of user surveys. Furthermore, most of the indices focus on the study of the recreational function leaving aside the other beach functions (especially protection). Therefore, the values obtained through these indices are more addressed to the beach user than to the beach manager, so (in general) they do not serve the beach manager in decision-making. Finally, to address the problems described above, a conceptual model based on ICT (Information and Communication Technologies) is proposed for the management and monitoring of beach quality. The computerization and automation of beach management, can be rendered more efficient and effective due to technological advances that can offer an integrated solution for the management of beaches.
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Affiliation(s)
- A Palazón
- Dept. of Civil Engineering, Catholic University of Murcia, Campus de los Jerónimos, N° 135 Guadalupe, 30107 Murcia, Spain
| | - I López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - V Gilart
- Dep. of Computing technology and computing, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - L Aragonés
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain.
| | - D Marcos-Jorquera
- Dep. of Computing technology and computing, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - D Foti
- Department of Civil Engineering and Architecture, Technical University of Bari, Bari, Italy
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Zapater E, Basterra J, López I, Oishi N, García-Lliberós A. Use of individual anatomical variations to customise window location in montgomery implant thyroplasty: A case series study. Clin Otolaryngol 2019; 44:1162-1165. [PMID: 31514258 DOI: 10.1111/coa.13429] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 08/04/2019] [Accepted: 09/08/2019] [Indexed: 12/01/2022]
Affiliation(s)
- Enrique Zapater
- ENT Department, Valencia Medical School, Valencia University General Hospital, Valencia, Spain
| | - Jorge Basterra
- ENT Department, Valencia Medical School, Valencia University General Hospital, Valencia, Spain
| | - Isabel López
- ENT Department, Valencia University General Hospital, Valencia, Spain
| | - Natsuki Oishi
- ENT Department, Valencia University General Hospital, Valencia, Spain
| | - Ainhoa García-Lliberós
- ENT Department, Valencia University General Hospital and Manises Hospital, Valencia, Spain
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Miguel L, Salvador F, Sulleiro E, Sánchez-Montalvá A, Molina-Morant D, López I, Molina I. Clinical and Epidemiological Characteristics of Patients with Dientamoeba fragilis Infection. Am J Trop Med Hyg 2019; 99:1170-1173. [PMID: 30328410 DOI: 10.4269/ajtmh.18-0433] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Dientamoeba fragilis is an intestinal protozoan, usually considered nonpathogenic. However, in the last years, there has been an attempt to clarify its possible pathogenic role. We aim to evaluate the clinical and epidemiological characteristics of D. fragilis-infected patients. Adults with D. fragilis detection in feces who attended the Vall d'Hebron University Hospital (Barcelona, Spain) were evaluated retrospectively from April 2009 to March 2014. We classified the patients in asymptomatic, symptomatic without other causes except infection of D. fragilis, and symptomatic with another cause. Among symptomatic patients, treatment response was evaluated. One hundred eight patients were included. Sixty-three percent of the patients were immigrants, 29.6% were autochthonous, and 7.4% were travelers. Forty-nine (45.3%) patients presented symptoms, and eosinophilia was observed in 26 (24.1%) patients. Overall, 59 (54.7%) patients were asymptomatic, 15 (13.8%) presented symptoms which were attributable to other causes, and 34 (31.5%) patients presented symptoms with no other causes. In this last group, 29 patients received specific treatment and 65.5% of them presented a complete resolution of the symptoms. The group of symptomatic patients with no other cause had more proportion of women, more proportion of autochthonous people, and were older compared with the group of asymptomatic patients. Dientamoeba fragilis infection should be considered as pathogenic when other causes are ruled out.
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Affiliation(s)
- Lucía Miguel
- Department of Infectious Diseases, Vall d'Hebron University Hospital, Universitat Autónoma de Barcelona, PROSICS Barcelona, Barcelona, Spain
| | - Fernando Salvador
- Department of Infectious Diseases, Vall d'Hebron University Hospital, Universitat Autónoma de Barcelona, PROSICS Barcelona, Barcelona, Spain
| | - Elena Sulleiro
- Department of Microbiology, Vall d'Hebron University Hospital, PROSICS Barcelona, Barcelona, Spain
| | - Adrián Sánchez-Montalvá
- Department of Infectious Diseases, Vall d'Hebron University Hospital, Universitat Autónoma de Barcelona, PROSICS Barcelona, Barcelona, Spain
| | - Daniel Molina-Morant
- Department of Infectious Diseases, Vall d'Hebron University Hospital, Universitat Autónoma de Barcelona, PROSICS Barcelona, Barcelona, Spain
| | - Isabel López
- Department of Microbiology, Vall d'Hebron University Hospital, PROSICS Barcelona, Barcelona, Spain
| | - Israel Molina
- Department of Infectious Diseases, Vall d'Hebron University Hospital, Universitat Autónoma de Barcelona, PROSICS Barcelona, Barcelona, Spain
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Aragonés L, Pagán JI, López I, Navarro-González FJ, Villacampa Y. Galerkin's formulation of the finite elements method to obtain the depth of closure. Sci Total Environ 2019; 660:1256-1263. [PMID: 30743920 DOI: 10.1016/j.scitotenv.2019.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 01/02/2019] [Accepted: 01/03/2019] [Indexed: 06/09/2023]
Abstract
Coastal erosion and lack of sediment supply are a serious global problem. It is therefore necessary to determine the depth of closure (DoC) of a beach-key parameter in the calculation of the sand volume and the location of the beach protection elements-in a precise way. For this reason, this work generates a numerical model based on Galerkin's formulation of finite elements that provides sufficient precision for the determination of DoC with a minimum investment. Thus, after the generation of three models in which the difference was the dependent variables, the least complex has been chosen. It is composed of the variables: median sediment size, wave height and period associated with the mean flow, as well as the angle that the mean flow forms with respect to the studied profile in absolute value (α). The selected model has been compared with the most commonly used models currently in use, having an average absolute error of 0.36 m and an average MAPE of <7.5%, which represents an improvement of >70% over current models. In addition, it presents a high stability, since after the random disturbance of all the input variables (up to 5%), the model error remains stable, increasing the MAPE by a maximum of 7.4% and the average absolute error by 0.15 m. Therefore, it is possible to use the model to infer the DoC in other study areas where the values of the variables are similar to those studied here, although the selected method can be extrapolated to other parts of the world.
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Affiliation(s)
- L Aragonés
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain.
| | - J I Pagán
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - I López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - F J Navarro-González
- Dept. of Applied Mathematics, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - Y Villacampa
- Dept. of Applied Mathematics, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
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López M, Baeza-Brotons F, López I, Tenza-Abril AJ, Aragonés L. Factors influencing the rate of beach sand wear: Activation layer thickness and sediment durability. Sci Total Environ 2019; 658:367-373. [PMID: 30579194 DOI: 10.1016/j.scitotenv.2018.12.211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 12/13/2018] [Accepted: 12/13/2018] [Indexed: 06/09/2023]
Abstract
The construction of harbours on the coast and/or dams in river courses prevents the contribution of sediments from rivers and ravines to the coastline and interferes with natural coastal dynamics. In the present study, the main objective is to provide information to the coastal engineer to predict and quantify the wear and tear of sand for artificial beach nourishment, as well as the durability of the intervention. For this purpose: (i) the amount of sample used in laboratory tests is related to the actual activation layer due to waves, and (ii) the material durability (aging) is demonstrated. Sands belonging to 9 beaches in the province of Alicante (Spain) were tested and studied, with different sample quantities (60, 75, 100, 120 and 150 g), the granulometry, calcimetry and wear (using the accelerated particle wear test, APW). The results showed that (generally) the greater the amount of sample used (activation layer), the greater the mass loss (reduction to size <0.063 mm) during the first cycle of the wear test. This may be due to the fact that the greater the amount of material in suspension (as a consequence of greater energy for the same volume of water), the greater the possibility of collision between particles, and therefore, greater particle wear and greater erosion on the beach. In addition, when the same material was subjected to new wear test cycles, that is, without the addition of new material (as is currently happening on the coasts), the durability of the same was compromised up to its wear limit. Particle wear reduces the median sediment size, which encourages movement towards the off-shore zone. Therefore, the wave energy, the material durability and the median sand diameter are elements to be taken into account in a beach nourishment.
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Affiliation(s)
- M López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - F Baeza-Brotons
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - I López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - A J Tenza-Abril
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - L Aragonés
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain.
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Marques Mejías MA, Tomás Pérez M, Hernández I, López I, Quirce S. Asthma Exacerbations in the Pediatric Emergency Department at a Tertiary Hospital: Association With Environmental Factors. J Investig Allergol Clin Immunol 2018; 29:365-370. [PMID: 30561364 DOI: 10.18176/jiaci.0364] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
INTRODUCTION Children with asthma experience recurrent respiratory symptoms and exacerbations due to multiple environmental factors. The aim of this study was to describe the prevalence and triggers of asthma exacerbations and their management in a cohort of pediatric patients attended in an emergency department (ED). METHODS We performed an observational, retrospective, single-center study in the pediatric ED of Hospital Universitario La Paz, Madrid, Spain in 2015. Children with asthma exacerbations attending the ED were included after a thorough search using our institutional computer database. Pollen and atmospheric mold spore counts and pollution data were collected for that period from official websites. Multiple logistic regression was used to assess the association between daily pollution (NO2, PM10, ozone, pollen, and molds) and admissions to the ED because of asthma. RESULTS During 2015, a total of 50 619 patients were attended in the ED of our hospital. Of these, 2609 (5%) were diagnosed with asthma exacerbation/bronchospasm. The patient had to be admitted to hospital in 21.7% of cases. The main triggers of asthma exacerbations were respiratory infection in 1841 cases (70.6%). A significant correlation was found between grass pollen counts and ED admissions (P<.0001). A positive correlation was also found between ED admissions and NO2 0.58 (95%CI, 0.02-0.87) and PM10 0.75 (95%CI, 0.31-0.93) (P<.05). CONCLUSION Environmental factors such as grass pollen counts and pollution (NO2 and PM10) are associated with a higher frequency of admission to the ED.
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Affiliation(s)
| | - M Tomás Pérez
- Department of Allergy, Hospital Universitario La Paz, Madrid, Spain.,Department of Allergy, Hospital La Paz Institute for Health Research (IDIPAZ), Madrid, Spain
| | - I Hernández
- Department of Allergy, Hospital Universitario La Paz, Madrid, Spain
| | - I López
- Department of Allergy, Hospital Universitario La Paz, Madrid, Spain
| | - S Quirce
- Department of Allergy, Hospital Universitario La Paz, Madrid, Spain.,Department of Allergy, Hospital La Paz Institute for Health Research (IDIPAZ), Madrid, Spain.,CIBER de Enfermedades Respiratorias CIBERES, Madrid, Spain
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Zapater E, Oishi N, Arribas M, Hernández R, López I, Basterra J. Use of bovine pericardium for the treatment of anterior iatrogenic glottic web. Laryngoscope 2018; 129:2121-2124. [PMID: 30515833 DOI: 10.1002/lary.27715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Enrique Zapater
- Ear, Nose, and Throat Department, Valencia University General Hospital and Valencia Medical School, Valencia, Spain
| | - Natsuki Oishi
- Ear, Nose, and Throat Department, Valencia University General Hospital and Valencia Medical School, Valencia, Spain
| | - Mar Arribas
- Ear, Nose, and Throat Department, Valencia University General Hospital and Valencia Medical School, Valencia, Spain
| | - Rosa Hernández
- Ear, Nose, and Throat Department, Valencia University General Hospital and Valencia Medical School, Valencia, Spain
| | - Isabel López
- Ear, Nose, and Throat Department, Valencia University General Hospital and Valencia Medical School, Valencia, Spain
| | - Jorge Basterra
- Ear, Nose, and Throat Department, Valencia University General Hospital and Valencia Medical School, Valencia, Spain
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López M, Baeza-Brotons F, López I, Tenza-Abril AJ, Aragonés L. Mineralogy and morphology of sand: Key parameters in the durability for its use in artificial beach nourishment. Sci Total Environ 2018; 639:186-194. [PMID: 29787902 DOI: 10.1016/j.scitotenv.2018.05.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 05/02/2018] [Accepted: 05/03/2018] [Indexed: 06/08/2023]
Abstract
Sand is the third most consumed material in the world, although it is a very scarce material. An exhaustive knowledge of sand and its behaviour against the waves is important for selecting the most suitable material to avoid shoreline erosion. To this end, a pattern of behaviour against accelerated wear test has been sought for 26 sand samples with different characteristics and origins (natural, dredged and quarried), with a focus on their mineralogy as well as a comparison of beach evolution carried out by other authors. Several techniques have been applied for characterization: granulometry, calcimetry, XRD and SEM. The results show that the different degrees of sand grain wear are not only due to their size and mineralogy, but also to the morphology of the particles.
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Affiliation(s)
- M López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - F Baeza-Brotons
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - I López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - A J Tenza-Abril
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - L Aragonés
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain.
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Pagán JI, López M, López I, Tenza-Abril AJ, Aragonés L. Causes of the different behaviour of the shoreline on beaches with similar characteristics. Study case of the San Juan and Guardamar del Segura beaches, Spain. Sci Total Environ 2018; 634:739-748. [PMID: 29649718 DOI: 10.1016/j.scitotenv.2018.04.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 04/04/2018] [Accepted: 04/04/2018] [Indexed: 06/08/2023]
Abstract
Storms can alter the beach shape, relocating large volumes of sediments and generating drastic changes in the coastline. In the last 60years, beaches shoreline behaviour has been different even though the energy of the waves was similar. Therefore, it is necessary to understand the factors that affect the sandy coasts for better future management. In this research, two beaches, with different erosion rate, located in the southeast of Spain (separated by only 40km of distance) have been studied. The beaches: i) have similar orientations, ii) are open to waves with similar sand lengths of 9.8km and 6.6km, and iii) have similar median sediment size (D50). For its study, shoreline evolution has been analysed from 1956 to 2017. From the results obtained, it can be seen that: i) Between 1992 and 2017, San Juan just lost 3% of its surface, while in the previous period (1956-1990) it was 50%, and ii) Guardamar surface lost in 1992-2017 was 18%, and in the previous period it was 14%. For the analysis of the agents involved in both beaches, cross-shore profiles (volume), marine climate, biocenosis and sedimentology studies were carried out. The results showed that the energy on both beaches was very similar. The biocenosis had not changed and, however, the morphology of Guardamar seabed had increased to 1m deep in some places, which had caused part of the beach berm erosion. Furthermore, important differences were found from the sedimentological study, concluding that the content of calcites and the degree of homogeneity of the particles are the real factors that caused these two beaches to behave differently against erosion.
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Affiliation(s)
- J I Pagán
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - M López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - I López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - A J Tenza-Abril
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - L Aragonés
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain.
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Chiva L, Pagán JI, López I, Tenza-Abril AJ, Aragonés L, Sánchez I. The effects of sediment used in beach nourishment: Study case El Portet de Moraira beach. Sci Total Environ 2018; 628-629:64-73. [PMID: 29428861 DOI: 10.1016/j.scitotenv.2018.02.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/03/2018] [Accepted: 02/03/2018] [Indexed: 06/08/2023]
Abstract
Actions taken to prevent or reduce coastal erosion often do not have the desired effect, leading to major problems instead of solving the original one. This research focuses on why a nourished beach- with borrowed sand and 0.05% of particles <0.063 mm- causes the presence of suspended particles that are observed by beach users as turbidity. This means that the colour of the water was not its characteristic blue, even with calm wave conditions. This research involved a shoreline evolution analysis and a sedimentological study of the sand from 1977 to 2017. The results show that the turbidity episodes that occurred after the beach fill of May 2017 do not coincide with major storms that affected the beach. Furthermore, prior to this beach nourishment, even after the most important storms turbidity was not so pronounced. However, when the pre-nourishment and post-nourishment sediment are compared and analysed in detail, by studying the microstructure and morphology of the sand particles, their composition and morphology were observed to be completely different. These differences are also reflected in the accelerated particle weathering test, with the post-nourishment particles showing greater dissolution of carbonates. From its mineralogy, the post-nourishment material presents a smaller proportion of quartz in its composition and a significant amount of particles (9.6%) formed by clusters of Calcium and Silicon. The separation of this mineralogical composition produced by waves explains the formation of particles measuring <0.063 mm, a fact that has also been confirmed by the accelerated particle weathering test. This is, therefore, the cause of turbidity in the swash zone of the beach.
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Affiliation(s)
- L Chiva
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - J I Pagán
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - I López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - A J Tenza-Abril
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - L Aragonés
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain.
| | - I Sánchez
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
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Pagán JI, López M, López I, Tenza-Abril AJ, Aragonés L. Study of the evolution of gravel beaches nourished with sand. Sci Total Environ 2018; 626:87-95. [PMID: 29335177 DOI: 10.1016/j.scitotenv.2018.01.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 01/02/2018] [Accepted: 01/03/2018] [Indexed: 06/07/2023]
Abstract
Coastal erosion is a worldwide problem, so accurate knowledge of the factors involved in the shoreline evolution is of great importance. This study analysed three gravel beaches that were nourished with sand from the same source. However, the evolution of their shoreline was different in each case. For its analysis, different factors were studied such as the shoreline and cross-shore profile evolution, the maritime climate, sedimentology and mineralogy. From the results, it should be noted that Centro beach is the most stable with a loss of surface after the first regeneration of 12.8%, while Carrer de mar is the most instable with a loss of 20.9%. The Posidonia oceanica meadow is one of the factors that make Centro beach the most stable despite being the one that receives the most wave energy. Another factor is its mineralogy and more specifically the composition of the particles that form the sample. Thus, it is observed how the cracking or the formation of particles by different minerals with a fragile union, are factors that make the beaches behave differently against erosion. For this reason, it is concluded that in order for the shoreline to be as stable as possible over time, a previous study of the sediment to be used for nourishment is necessary, as well as its possible effect on the ecosystem, since the future shoreline evolution will depend on it.
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Affiliation(s)
- J I Pagán
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - M López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - I López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - A J Tenza-Abril
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - L Aragonés
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain.
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Gonçalves-Ribeiro S, Sanz-Pamplona R, Vidal A, Sanjuan X, Guillen Díaz-Maroto N, Soriano A, Guardiola J, Albert N, Martínez-Villacampa M, López I, Santos C, Serra-Musach J, Salazar R, Capellà G, Villanueva A, Molleví DG. Prediction of pathological response to neoadjuvant treatment in rectal cancer with a two-protein immunohistochemical score derived from stromal gene-profiling. Ann Oncol 2018; 28:2160-2168. [PMID: 28911071 DOI: 10.1093/annonc/mdx293] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Preoperative chemoradiotherapy followed by surgical mesorectal resection is the standard of care for locally advanced rectal carcinomas. Yet, predicting that patients will respond to treatment remains an unmet clinical challenge. Experimental design Using laser-capture microdissection we isolated RNA from stroma and tumour glands from prospective pre-treatment samples (n = 15). Transcriptomic profiles were obtained hybridising PrimeView Affymetrix arrays. We modelled a carcinoma-associated fibroblast-specific genes filtering data using GSE39396. Results The analysis of differentially expressed genes of stroma/tumour glands from responder and non-responder patients shows that most changes were associated with the stromal compartment; codifying mainly for extracellular matrix and ribosomal components. We built a carcinoma-associated fibroblast (CAF) specific classifier with genes showing changes in expression according to the tumour regression grade (FN1, COL3A1, COL1A1, MMP2 and IGFBP5). We assessed these five genes at the protein level by means of immunohistochemical staining in a patient's cohort (n = 38). For predictive purposes we used a leave-one-out cross-validated model with a positive predictive value (PPV) of 83.3%. Random Forest identified FN1 and COL3A1 as the best predictors. Rebuilding the leave-one-out cross-validated regression model improved the classification performance with a PPV of 93.3%. An independent cohort was used for classifier validation (n = 36), achieving a PPV of 88.2%. In a multivariate analysis, the two-protein classifier proved to be the only independent predictor of response. Conclusion We developed a two-protein immunohistochemical classifier that performs well at predicting the non-response to neoadjuvant treatment in rectal cancer.
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Affiliation(s)
| | - R Sanz-Pamplona
- Program of Prevention and Cancer Control, Biomarkers Unit, Catalan Institute of Oncology
| | | | | | | | - A Soriano
- Department of Gastroenterology Endoscopy Unit, Hospital Universitari de Bellvitge
| | - J Guardiola
- Department of Gastroenterology Endoscopy Unit, Hospital Universitari de Bellvitge
| | - N Albert
- Program Against Cancer Therapeutic Resistance
| | | | - I López
- Department of Medical Oncology
| | | | | | | | - G Capellà
- Hereditary Cancer Program, Catalan Institute of Oncology, IDIBELL, L'Hospitalet de Llobregat, Catalonia, Spain
| | | | - D G Molleví
- Program Against Cancer Therapeutic Resistance
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Castillo T, López I, Flores C, Segura D, García A, Galindo E, Peña C. Oxygen uptake rate in alginate producer (algU+) and nonproducer (algU-) strains of Azotobacter vinelandii under nitrogen-fixation conditions. J Appl Microbiol 2018; 125:181-189. [PMID: 29573518 DOI: 10.1111/jam.13760] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 02/07/2018] [Accepted: 03/09/2018] [Indexed: 11/30/2022]
Abstract
AIMS The sigma E (AlgU) in Azotobacter vinelandii has been shown to control the expression of cydR gene, a repressor of genes of the alternative respiratory chain, and alginate has been considered a barrier for oxygen diffusion. Therefore, the aim of the present study was to compare the respiratory activity of an alginate nonproducing strain, lacking the sigma factor E (algU-), and polymer-producing strains (algU+) of A. vinelandii under diazotrophic conditions at different aeration conditions. METHODS AND RESULTS Our results reveal that under diazotrophic and high aeration conditions, A. vinelandii strain OP (algU-) had a specific oxygen consumption rate higher (30 and 54%) than those observed in the OP algU+-complemented strain, named OPAlgU+, and the ATCC 9046 respectively. However, the specific growth rate and biomass yields (based on oxygen and sucrose) were lower for OP cultivations as compared to the algU+ strains. These differences were partially explained by an increase in 1·5-fold of cydA relative expression in the OP strain, as compared to that obtained in the isogenic OPAlgU+ strain. CONCLUSIONS Overall, our results confirm the important role of algU gene on the regulation of respiratory metabolism under diazotrophic growth when A. vinelandii is exposed to high aeration. SIGNIFICANCE AND IMPACT OF THE STUDY This study highlights the role of AlgU to control respiration of A. vinelandii when exposed to diazotrophy.
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Affiliation(s)
- T Castillo
- Departamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - I López
- Departamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - C Flores
- Departamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - D Segura
- Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - A García
- Departamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - E Galindo
- Departamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - C Peña
- Departamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
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López I, Aragonés L, Villacampa Y, Navarro-González FJ. Gravel beaches nourishment: Modelling the equilibrium beach profile. Sci Total Environ 2018; 619-620:772-783. [PMID: 29161602 DOI: 10.1016/j.scitotenv.2017.11.156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/14/2017] [Accepted: 11/14/2017] [Indexed: 06/07/2023]
Abstract
The erosion of the world's coasts and the shortage of sand to mitigate beach erosion are leading to the increasingly common use of gravel for coastal protection and beach nourishment. Therefore, in order to determine the amount of gravel required for such actions, it is important to know perfectly the equilibrium profile of gravel beaches. However, at present, this profile is obtained from formulas obtained mainly after channel tests, and therefore most of them do not adapt to the real profiles formed by gravel beaches in nature. In this article, 31 variables related to sedimentology, waves, morphology and marine vegetation present on the beaches are studied to determine which are the most influential in the profile. From the study carried out, it is obtained that these variables are the steepness and probability of occurrence of the wave perpendicular to the coast, the profile starting slope (between MWL and -2m), the energy reduction coefficient due to Posidonia oceanica as well as the width of the meadow. Using these variables, different numerical models were generated to predict accurately the gravel beach profile, which will lead to a saving in the volume of material used in the order of 1300m3/ml of beach with respect to current formulations, and a greater certainty that the beach nourishment carried out will have the desired effect.
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Affiliation(s)
- I López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain.
| | - L Aragonés
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - Y Villacampa
- Dept. of Applied Mathematics, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - F J Navarro-González
- Dept. of Applied Mathematics, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
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López I, Porras-Gutiérrez AG, Douziech B, Wojcik L, Le Mest Y, Kodera M, Le Poul N. O–O bond cleavage via electrochemical reduction of a side-on peroxo dicopper model of hemocyanin. Chem Commun (Camb) 2018; 54:4931-4934. [DOI: 10.1039/c8cc01959b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The redox properties of the μ-η2:η2 peroxo complex [Cu2(H6M4h)(O2)]2+ were elucidated.
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Affiliation(s)
- I. López
- UMR CNRS 6521
- Université de Bretagne Occidentale
- 29238 Brest Cedex 3
- France
| | | | - B. Douziech
- UMR CNRS 6521
- Université de Bretagne Occidentale
- 29238 Brest Cedex 3
- France
| | - L. Wojcik
- UMR CNRS 6521
- Université de Bretagne Occidentale
- 29238 Brest Cedex 3
- France
| | - Y. Le Mest
- UMR CNRS 6521
- Université de Bretagne Occidentale
- 29238 Brest Cedex 3
- France
| | - M. Kodera
- Department of Molecular Chemistry and Biochemistry
- Doshisha University
- Kyoto 610-0321
- Japan
| | - N. Le Poul
- UMR CNRS 6521
- Université de Bretagne Occidentale
- 29238 Brest Cedex 3
- France
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Pagán JI, López I, Aragonés L, Garcia-Barba J. The effects of the anthropic actions on the sandy beaches of Guardamar del Segura, Spain. Sci Total Environ 2017; 601-602:1364-1377. [PMID: 28605855 DOI: 10.1016/j.scitotenv.2017.05.272] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 05/29/2017] [Accepted: 05/30/2017] [Indexed: 06/07/2023]
Abstract
There are many activities and uses in the coastal environment, which has historically attracted the humans. This attraction has led to many anthropic actions that have generated imbalances, more important as the human pressure increases. This research focuses on the effects of these pressures along of 11km of the coastline of Guardamar del Segura, a high-value environmental area where is the Segura River mouth and one of the last dune systems of the southeast of Spain. The historic evolution of the shoreline position has been analysed using 60years of aerial images from 1950s to 2014, the seabed depth changes, the maritime climate, the distribution of the sediment grain size and the anthropic actions such as urban development or the channelling of the river. All data were integrated and processed using a Geographic Information System (GIS). The results show that the lack of sediment supply by Segura River and the cut-off in the longshore transport due to the breakwaters and others anthropic actions has led into an increase in the beaches erosion rates, with a loss of >3.2millionm3 of sand in the last 58years (≈55,200m3/year). The conclusions of this research could be useful to the coastal managers at the moment of making the decisions of action and/or conservation on a coastal system to achieve positive results in the medium and long term.
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Affiliation(s)
- J I Pagán
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain.
| | - I López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - L Aragonés
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain.
| | - J Garcia-Barba
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain.
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Sánchez-Céspedes R, Fernández-Martínez MD, Raya A, Pineda C, López I, Millán Y. Vitamin D receptor expression in canine mammary gland and relationship with clinicopathological parameters and progesterone/oestrogen receptors. Vet Comp Oncol 2017; 16:E185-E193. [PMID: 29178579 DOI: 10.1111/vco.12371] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 10/10/2017] [Accepted: 10/17/2017] [Indexed: 02/06/2023]
Abstract
The vitamin D receptor (VDR) belongs to the nuclear class II receptor family. VDR is a ligand transcription factor and mediates the actions of calcitriol, the active product of vitamin D synthesis. Nowadays, it is known that the biological actions of calcitriol include the capacity to modulate cancer features, such as proliferation and differentiation, apoptosis, angiogenesis, invasion and metastasis. VDR expression has been demonstrated in human breast cancer and vitamin D has emerged as a promising targeted therapy. We analyse the VDR expression in normal and neoplastic canine mammary tissue samples and its relationship with clinicopathological parameters and progesterone/oestrogens receptors (PR/ER). Expression of VDR, Ki67 (to evaluate the proliferation index, PI), PR and ER was assessed in 50 mammary gland tissue samples from 41 female dogs by immunohistochemistry. VDR-positive staining was found in the nuclei of both myoepithelial and luminal epithelial cell layers. VDR expression was higher in normal mammary tissue (37/37 cases, 100%) then followed by benign tumours (6/15 cases, 40%) and malignant tumours (9/34 cases, 26.5%) (P = .001). Female dogs aged ≥10 years had lower VDR expression compared with dogs younger (P = .017). Relationship between VDR and breed, number of tumours, tumour size, histologic subtype, histologic grade of malignancy, PI and PR and ER expression was not observed. Studies with more samples are necessary to further evaluate the possible role of VDR in the biological behaviour of canine mammary tumours, and to corroborate the possibility to use the dog as model for human breast cancer.
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Affiliation(s)
- R Sánchez-Céspedes
- Department of Comparative Pathology, University of Córdoba, Córdoba, Spain
| | | | - A Raya
- Department of Medicine and Animal Surgery, Veterinary Faculty, University of Córdoba, Córdoba, Spain
| | - C Pineda
- Department of Medicine and Animal Surgery, Veterinary Faculty, University of Córdoba, Córdoba, Spain
| | - I López
- Department of Medicine and Animal Surgery, Veterinary Faculty, University of Córdoba, Córdoba, Spain
| | - Y Millán
- Department of Comparative Pathology, University of Córdoba, Córdoba, Spain
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Vegas A, Martín C, López I, Moratalla E, Miró M, Salvaro A, Montero N, Cano M. Results of Hysteroscopic Treatment of Symptomatic Isthmoceles in Patients with Abnormal Uterine Bleeding and Abdominal Pain. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
The paper is aimed at the methodological development of ecological monitoring in discrete-time dynamic models. In earlier papers, in the framework of continuous-time models, we have shown how a systems-theoretical methodology can be applied to the monitoring of the state process of a system of interacting populations, also estimating certain abiotic environmental changes such as pollution, climatic or seasonal changes. In practice, however, there may be good reasons to use discrete-time models. (For instance, there may be discrete cycles in the development of the populations, or observations can be made only at discrete time steps.) Therefore the present paper is devoted to the development of the monitoring methodology in the framework of discrete-time models of population ecology. By monitoring we mean that, observing only certain component(s) of the system, we reconstruct the whole state process. This may be necessary, e.g., when in a complex ecosystem the observation of the densities of certain species is impossible, or too expensive. For the first presentation of the offered methodology, we have chosen a discrete-time version of the classical Lotka-Volterra prey-predator model. This is a minimal but not trivial system where the methodology can still be presented. We also show how this methodology can be applied to estimate the effect of an abiotic environmental change, using a component of the population system as an environmental indicator. Although this approach is illustrated in a simplest possible case, it can be easily extended to larger ecosystems with several interacting populations and different types of abiotic environmental effects.
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Affiliation(s)
- M Gámez
- Department of Mathematics, University of Almería, Almería, Spain
| | - I López
- Department of Mathematics, University of Almería, Almería, Spain
| | - C Rodríguez
- Department of Mathematics, University of Almería, Almería, Spain
| | - Z Varga
- Institute of Mathematics and Informatics, Szent István University, Gödöllő, Hungary
| | - J Garay
- MTA-ELTE Theoretical Biology and Evolutionary Ecology Research Group and Department of Plant Systematics, Ecology and Theoretical Biology, L. Eötvös University, Budapest, Hungary
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Palazón A, López I, Aragonés L, Villacampa Y, Navarro-González FJ. Modelling of Escherichia coli concentrations in bathing water at microtidal coasts. Sci Total Environ 2017; 593-594:173-181. [PMID: 28346898 DOI: 10.1016/j.scitotenv.2017.03.161] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 03/17/2017] [Accepted: 03/18/2017] [Indexed: 06/06/2023]
Abstract
Monitoring of the quality of bathing water in line with the European Commission bathing water directive (Directive 2006/7/EC) is a significant economic expense for those countries with great lengths of coastline. In this study a numerical model based on finite elements is generated whose objective is partially substituting the microbiological analysis of the quality of coastal bathing waters. According to a study of the concentration of Escherichia coli in 299 Spanish Mediterranean beaches, it was established that the most important variables that influence the concentration are: monthly sunshine hours, mean monthly precipitation, number of goat cattle heads, population density, presence of Posidonia oceanica, UV, urbanization level, type of sediment, wastewater treatment ratio, salinity, distance to the nearest discharge, and wave height perpendicular to the coast. Using these variables, a model with an absolute error of 10.6±1.5CFU/100ml is achieved. With this model, if there are no significant changes in the beach environment and the variables remain more or less stable, the concentration of E. coli in bathing water can be determined, performing only specific microbiological analyses to verify the water quality.
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Affiliation(s)
- A Palazón
- Dept. of Civil Engineering, Catholic University of Murcia, Campus de los Jerónimos, N° 135 Guadalupe, 30107 Murcia, Spain
| | - I López
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - L Aragonés
- Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain.
| | - Y Villacampa
- Dept. of Applied Mathematics, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
| | - F J Navarro-González
- Dept. of Applied Mathematics, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain
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