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Panigrahi S, Raju U. DSM-IDM-YOLO: Depth-Wise Separable Module and Inception Depth-Wise Module Based YOLO for Pedestrian Detection. INT J ARTIF INTELL T 2022. [DOI: 10.1142/s0218213023500112] [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: 11/18/2022]
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Panigrahi S, Mohanty AK, Samantara MK, Sahu G, Chandrasekaran S, Subramanian V, Srinivas CV. Distribution, annual committed effective dose, and health safety assessment of 210Po in marine biota from Kalpakkam coast, Bay of Bengal. Mar Pollut Bull 2021; 173:113147. [PMID: 34808544 DOI: 10.1016/j.marpolbul.2021.113147] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 06/13/2023]
Abstract
Seafood, intertidal biota, beach sediment, and seawater from Kalpakkam coast, Bay of Bengal were analyzed for 210Po to evaluate the internal exposure and other radiological safety aspects. Kalpakkam houses various nuclear power generation facilities on its coast. The activity concentration of 210Po was more pronounced in the intertidal organisms. Pelagic planktivorous fishes have the highest activity of the non-technogenic radionuclide, followed by the detrital feeders, benthic planktivores, benthic carnivores, and pelagic carnivore fishes. The affinity of 210Po to organic detrital matter and planktonic organisms has led to a higher accumulation of radionuclide in planktivorous fishes. Activity concentration of 210Po in seafood ranged between 1.13 ± 0.3 and 96.71 ± 1.6 Bq kg-1 (Becquerel/kilogram). In seaweeds and gastropods, it ranged from 2.09 ± 0.2 to 8.21 ± 0.6 and from 9.31 ± 0.7 to 21.58 ± 1.2 Bq kg-1, respectively. The committed effective dose (CED) of 210Po in seafood varied from 31.18 to 456.68 μSv yr-1 (microSievert/year). Radiological hazard parameters, such as activity intake, CED in consumption, of the seafood from this coast are within the acceptable levels prescribed by the International Commission on Radiological Protection and US Environmental Protection Agency.
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Affiliation(s)
- Satyanarayan Panigrahi
- Environmental Assessment Section, EAD/RESG/SQRMG, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu 603 102, India.
| | - A K Mohanty
- Aerosol Transport and Biodiversity Section, RESD/RESG/SQRMG, Indira Gandhi Centre for Atomic Research, Kalpakkam, India
| | - M K Samantara
- Aerosol Transport and Biodiversity Section, RESD/RESG/SQRMG, Indira Gandhi Centre for Atomic Research, Kalpakkam, India
| | - G Sahu
- Aerosol Transport and Biodiversity Section, RESD/RESG/SQRMG, Indira Gandhi Centre for Atomic Research, Kalpakkam, India
| | - S Chandrasekaran
- Environmental Assessment Section, EAD/RESG/SQRMG, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu 603 102, India; Homi Bhaba National Institute, Anushakti Nagar, Mumbai, India
| | - V Subramanian
- Aerosol Transport and Biodiversity Section, RESD/RESG/SQRMG, Indira Gandhi Centre for Atomic Research, Kalpakkam, India
| | - C V Srinivas
- Environmental Assessment Section, EAD/RESG/SQRMG, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu 603 102, India; Homi Bhaba National Institute, Anushakti Nagar, Mumbai, India
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Mohapatra P, Bhuniya S, Panigrahi M, Bal S, Patra S, Majumdar SD, Mishra P, Mohakud S, Naik S, Kar M, Muduly D, Padmaja S, K M, Ghosh S, Panigrahi S, Durgeshwar G, Acharyulu V, Parida D. P38.14 Demographic and Molecular Epidemiologic Profile of Primary Lung Cancer in Eastern India. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.795] [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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Affiliation(s)
- S. Panigrahi
- Natural Resources Institute, Central Avenue, Chatham Maritime, Kent ME4 4TB, UK
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Mohapatra P, Bhuniya S, Panigrahi M, Patra S, Mishra P, Purkait S, Dasmajumdar S, Mohakud S, Naik S, Sahoo S, Jagaty S, Mohankudo S, Dhanurdhar Y, Panigrahi S, Rahman M, Muduly D. P3.13-16 Concomitant EML4-ALK Rearrangement and EGFR Mutation in Non-Small Cell Lung Cancer Patients: Data from Eastern Indian Hospital. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1856] [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: 10/28/2022]
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Mishra S, Sahu SK, Panigrahi S, Biswal SS, Mishra SR, Ranjan R, Mohanty DN, Pattnaik B, Das S. Comparative therapeutic efficacy of levofloxacin, ornidazole and alpha tocopherol combination with prostaglandin F2α on IL-6 and IL-10 transcript level in longstanding cases of endometritis in crossbreed Jersey cows. Iran J Vet Res 2018; 19:217-224. [PMID: 30349569 PMCID: PMC6184032] [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] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 04/12/2018] [Accepted: 05/01/2018] [Indexed: 06/08/2023]
Abstract
This study compared the therapeutic efficacy of levofloxacin, ornidazole and alpha tocopherol combination and prostaglandin F2α (PGF2α) in longstanding cases of endometritis and evaluated their impact on Interleukin-6 (IL-6) and Interleukin-10 (IL-10) transcript level in peripheral blood leukocytes. Eighteen endometritic crossbred Jersey cows were randomly allotted to three groups (six in each) viz. Group I (levofloxacin combo treatment I/U), group II (PGF2α treatment I/M), group III (no treatment, control), and group IV (six non-endometritic healthy cyclic) was taken for comparison study. The clinical efficacy was assessed by haematological study (TLC: Total leukocyte count; DC: Differential count), polymorphonuclear leukocytes (PMN) count in uterine cytology and relative mRNA expression of IL-6 and IL-10 in peripheral blood leukocytes before and after treatment with respect to conception rate following single and second inseminations. Group I and II registered significant increase in TLC and neutrophil count. PMN cytology was increased two and three fold in group I and II, respectively. The IL-6 transcript level was increased by 2.5 and 4.6 fold while that of IL-10 increased by 3.7 and 5.2 fold in group I and II, respectively. Conception rate across group I to IV following single insemination was found to be 66.67%, 50%, 16.67%, and 83.33% and their corresponding values following second insemination were 66.67%, 83.33%, 16.67%, and 83.33%, respectively. Thus, the administration of levofloxacin combo and PGF2α might have better conception rate following first and second insemination, respectively. Our study also reveals that PGF2α could register better clearance of bacteria through stronger PMN cell and cytokine activity in post-treatment period.
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Affiliation(s)
- S. Mishra
- MVSc in Animal Reproduction, Gynaecology and Obstetrics, Department of Animal Reproduction, Gynaecology and Obstetrics, College of Veterinary Science & Animal Husbandry, Orissa University of Agriculture and Technology, Bhubaneswar, 751003, India
| | - S. K. Sahu
- Ph.D. Scholar in Veterinary Gynaecology and Obstetrics, Department of Veterinary Gynaecology and Obstetrics, ICAR-National Dairy Research Institute, Karnal, Haryana, 132001, India
| | - S. Panigrahi
- Ph.D. Scholar in Animal Genetics and Breeding, Department of Animal Genetics & Breeding, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati-781022, India
| | - S. S. Biswal
- Department of Teaching Veterinary Clinical Complex, College of Veterinary Science & Animal Husbandry, Orissa University of Agriculture and Technology, Bhubaneswar, 751003, India
| | - S. R. Mishra
- Department of Veterinary Physiology, College of Veterinary Science & Animal Husbandry, Orissa University of Agriculture and Technology, Bhubaneswar, 751003, India
| | - R. Ranjan
- ICAR-Project Directorate on Foot-and-Mouth Disease, Mukteshwar, Nainital, Uttarakhand, 263138, India
| | - D. N. Mohanty
- Department of Animal Reproduction, Gynaecology and Obstetrics, College of Veterinary Science & Animal Husbandry, Orissa University of Agriculture and Technology, Bhubaneswar, 751003, India
| | - B. Pattnaik
- ICAR-Project Directorate on Foot-and-Mouth Disease, Mukteshwar, Nainital, Uttarakhand, 263138, India
| | - S. Das
- Department of Animal Reproduction, Gynaecology and Obstetrics, College of Veterinary Science & Animal Husbandry, Orissa University of Agriculture and Technology, Bhubaneswar, 751003, India
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Achary MS, Satpathy K, Panigrahi S, Mohanty A, Padhi R, Biswas S, Prabhu R, Vijayalakshmi S, Panigrahy R. Concentration of heavy metals in the food chain components of the nearshore coastal waters of Kalpakkam, southeast coast of India. Food Control 2017. [DOI: 10.1016/j.foodcont.2016.04.028] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Achary MS, Panigrahi S, Satpathy KK, Sahu G, Mohanty AK, Selvanayagam M, Panigrahy RC. Nutrient dynamics and seasonal variation of phytoplankton assemblages in the coastal waters of southwest Bay of Bengal. Environ Monit Assess 2014; 186:5681-5695. [PMID: 24865383 DOI: 10.1007/s10661-014-3812-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Accepted: 05/06/2014] [Indexed: 06/03/2023]
Abstract
In order to understand the phytoplankton community structure and its relationship with the environmental variables in the near shore waters of Kalpakkam, east coast of India, observations were carried out during 2008-2009. Phytoplankton population was comprised of 219 species, and the density was higher during the southwest monsoon (SWM) and inter-monsoon seasons than that of north east monsoon (NEM) season. The nutrient status on a temporal and spatial scale indicated the impact of point sources carrying anthropogenic runoff. Comparison of ambient nutrient ratios with the Redfield ratio (N/P/Si = 16:1:16) showed a clear temporal variation in the factors that regulate the phytoplankton growth. SWM and inter-monsoon season was evident to have an acute N-limitation of algal growth (~76%) whereas P-limitation was encountered during the NEM season (~75%). Interestingly, a sizable population of cyanobacteria (Trichodesmium erythraeum) were noticed during NEM season when there was an exponential increase in nitrogen concentration, probably due to nitrogen fixation. No significant impact of temperature on phytoplankton proliferation was observed in situ during the study period.
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Affiliation(s)
- M S Achary
- Environment and Safety Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, 603102, India
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Senthil V, Badapanda T, Chithambararaj A, Chandra Bose A, Mohapatra AK, Panigrahi S. Dielectric relaxation behavior and electrical conduction mechanism in polymer-ceramic composites based on Sr modified Barium Zirconium Titanate ceramic. J Polym Res 2012. [DOI: 10.1007/s10965-012-9898-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Pal A, Mishra BK, Nath RK, Panigrahi S, Deb S, Sinha TP. An Investigation of the Behavior of Binary Mixed Langmuir Monolayer of 2,2′-p-Phenylenebis (5-phenyloxazol) and Arachidic Acid. J DISPER SCI TECHNOL 2012. [DOI: 10.1080/01932691.2011.562435] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Shinoj S, Panigrahi S, Visvanathan R. Water absorption pattern and dimensional stability of oil palm fiber-linear low density polyethylene composites. J Appl Polym Sci 2010. [DOI: 10.1002/app.31765] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Balasubramanian S, Panigrahi S, Logue C, Gu H, Marchello M. Neural networks-integrated metal oxide-based artificial olfactory system for meat spoilage identification. J FOOD ENG 2009. [DOI: 10.1016/j.jfoodeng.2008.08.008] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
Flax fiber is one of the important bast fiber available in North America which has low density and good mechanical properties for reinforcing various polymers to develop industrial biocomposite. But the hydrophilic nature of the fiber leads to poor adhesion between the fiber and the polymer matrices which, in turn, leads to poor dimensional stability. To enhance the adhesion between polymer matrix and fiber, chemical treatments of the fiber are necessary. After these treatments, the fiber needs to be uniformly dried to minimum moisture content for better compounding of flax in polymer matrices. Drying by conventional dryers at higher temperature usually results in overall quality loss due to surface drying, and it is also time consuming and energy intensive. In recent years, the microwave has been effectively used for enhancing bulk drying of biomaterials especially when coupled with vacuum. Such a volumetric heat transfer mechanism coupled with drying in vacuum provides an ideal low-temperature drying technique resulting in better organoleptic quality. In this study, the drying characteristics of flax fiber were studied under microwave-vacuum condition. The drying experiments were conducted in Enwave Microwave-vacuum dryer using three different process variables viz., microwave power (750 W and 375 W), vacuum level (25, 10, and 0 in Hg) and time of drying (0 to 14 mins). In order to select the appropriate drying curve equation, the drying data was fitted in three different models viz., Page model, single exponential model and approximation of diffusion model.
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Affiliation(s)
- Satyanarayan Panigrahi
- University of Saskatchewan, Dept of Agricultural and Bioresource Engineering, 57 Campus Drive, Saskatoon, SK, Canada S7N 5A9.
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Balasubramanian S, Panigrahi S, Kottapalli B, Wolf-Hall C. Evaluation of an artificial olfactory system for grain quality discrimination. Lebensm Wiss Technol 2007. [DOI: 10.1016/j.lwt.2006.12.016] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sarkar A, Panigrahi S, Mehrotra R, Anand M, Mukherjee AB. Toward Finding a Sustainable Solution for Arsenic Contamination of Ground Water: A SWOT Analysis. Epidemiology 2006. [DOI: 10.1097/00001648-200611001-00558] [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: 11/25/2022]
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Panigrahi S, Balasubramanian S, Gu H, Logue C, Marchello M. Neural-network-integrated electronic nose system for identification of spoiled beef. Lebensm Wiss Technol 2006. [DOI: 10.1016/j.lwt.2005.01.002] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Panigrahi S, Ghazanfari A, Meda V. Dehydrating of flax fiber with microwave heating for biocomposite production. J Microw Power Electromagn Energy 2006; 40:69-77. [PMID: 17278791 DOI: 10.1080/08327823.2005.11688529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The feasibility of microwave dehydrating flax fiber was evaluated using a commercial domestic microwave oven at four power settings representing 200, 300, 400 and 500 Watt (W) power level. Due to the possibility of local heating and consequent fiber degradation, the changes in color of the flax fiber at different levels of temperature were also investigated. The dehydration processes at various power levels were simulated by Page model. Based on visual inspection, color analysis and scanning electron microscopy (SEM) of the fiber, it was revealed that discoloration of the fiber occurred at about 170 degrees C. At 200 and 300 W power level, after 10 minutes of dehydrating, the moisture content of the fiber reached from initial 7.9% close to 2.0 and 1.0%, respectively. For 400 W power level, the moisture content of the fiber dropped to 0. 10% in about 9.5 minutes. Major discoloration of the fiber was noticed when dehydration was proceed beyond 4.5 minutes for 500 W treatment. The Page model very well fitted the experimental data. The coefficients of determination calculated from the model and the experimental data increased with increase in applied microwave power
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Affiliation(s)
- Satyanarayan Panigrahi
- Department of Agricultural and Bioresource Engineering, University of Saskatchewan 57 Campus Drive, Saskatoon, CANADA S7N5A9
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Slavin S, Or R, Aker M, Shapira MY, Panigrahi S, Symeonidis A, Cividalli G, Nagler A. Nonmyeloablative stem cell transplantation for the treatment of cancer and life-threatening nonmalignant disorders: past accomplishments and future goals. Cancer Chemother Pharmacol 2001; 48 Suppl 1:S79-84. [PMID: 11587373 DOI: 10.1007/s002800100311] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Allogeneic bone marrow transplantation (BMT) or blood stem cell transplantation represents an important therapeutic tool for the treatment of otherwise incurable malignant and nonmalignant diseases. Until recently. autologous and allogeneic BMT or mobilized blood stem cell transplantation was used primarily to replace a malignant, genetically abnormal, or deficient immunohematopoietic compartment, and therefore highly toxic myeloablative regimens were considered mandatory for eradication of all undesirable host-derived hematopoietic elements. Our preclinical and ongoing clinical studies have indicated that more effective eradication of host immunohematopoietic system cells could be achieved by adoptive allogeneic cell therapy with donor lymphocyte infusion following BMT. Thus eradication of blood cancer cells, especially in patients with chronic myelogenous leukemia and less frequently in patients with other hematologic malignancies, can frequently be achieved despite complete resistance of such tumor cells to the maximum tolerated doses of chemoradiotherapy. Our cumulative experience suggests that graft vs leukemia (GVL) effects might be a useful tool for eradication of otherwise resistant tumor cells of host origin. Based on the cumulative clinical experience and experimental data in animal models of human diseases, it appears that induction of host vs graft tolerance as the first step may allow durable engraftment of immunocompetent donor lymphocytes, which may be used for induction of effective biologic warfare against host-type immunohematopoietic cells that need to be replaced, whether they are malignant, genetically abnormal, or self-reactive. Based on this rationale, we speculate that the therapeutic benefit of BMT may be increased by using safer conditioning as part of the transplantation procedure, with the goal of inducing host vs graft tolerance to enable subsequent induction of GVL, possibly graft vs tumor, or even graft vs autoimmunity effects, rather than attempting to eliminate host cells with hazardous myeloablative chemoradiotherapy. Our hypothesis suggests that effective BMT procedures might be accomplished without lethal conditioning of the host, using new, well-tolerated nonmyeloablative regimens, possibly minimizing immediate and late side effects related to myeloablative procedures. Recent clinical data suggest that effective BMT procedures may be accomplished with nonmyeloablative stem cell transplantation (NST) regimens, with no major toxicity. Thus new NST approaches may make BMT procedures safer for a spectrum of clinical indications in children and elderly individuals without lower or upper age limits, while minimizing procedure-related toxicity and mortality. Our cumulative data suggest that high-dose chemotherapy and radiation therapy may be successively replaced by more effective alloreactive donor lymphocytes, thus setting the stage for innovative therapeutic procedures with safer and more effective treatment of patients requiring BMT.
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Affiliation(s)
- S Slavin
- Department of Bone Marrow Transplantation and Cancer Immunotherapy, Hadassah University Hospital, Jerusalem, Israel.
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Slavin S, Nagler A, Shapira M, Panigrahi S, Samuel S, Or A. Non-myeloablative allogeneic stem cell transplantation focusing on immunotherapy of life-threatening malignant and non-malignant diseases. Crit Rev Oncol Hematol 2001; 39:25-9. [PMID: 11418299 DOI: 10.1016/s1040-8428(01)00121-4] [Citation(s) in RCA: 12] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Allogeneic bone marrow transplantation (BMT) represents an important therapeutic tool for treatment of otherwise incurable malignant and non-malignant diseases. Until recently, myeloablative regimens were considered mandatory for eradication of all undesirable host-derived hematopoietic elements. Our preclinical and ongoing clinical studies indicated that much more effective eradication of host immunohematopoietic system cells could be achieved by adoptive allogeneic cell therapy with donor lymphocyte infusion (DLI) following BMT. Thus, eradication of blood cancer cells, especially in patients with CML can be frequently accomplished despite complete resistance of such tumor cells to maximally tolerated doses of chemoradiotherapy. Our cumulative experience suggested that graft versus leukemia (GVL) effects might be a useful tool for eradication of otherwise resistant tumor cells of host origin. The latter working hypothesis suggested that effective BMT procedures may be accomplished without lethal conditioning of the host, using new well tolerated non-myeloablative regimen, thus possibly minimizing immediate and late side effects related to myeloablative procedures considered until recently mandatory for conditioning of BMT recipients. Recent clinical data that will be presented suggests that safe non-myeloablative stem cell transplantation (NST), with no major toxicity can replace the conventional BMT. Thus, NST may provide an option for cure for a large spectrum of clinical indications in children and elderly individuals without lower or upper age limit, while minimizing procedure-related toxicity and mortality.
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Affiliation(s)
- S Slavin
- Department of Bone Marrow Transplantation and Cancer Immunotherapy, The Danny Cunniff Leukemia Research Laboratory, Hadassah University Hospital, Jerusalem 91120, Israel.
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Panigrahi S, Nagler A, Or R, Wolf DG, Slavin S, Shapira MY. Indolent aspergillus arthritis complicating fludarabine-based non-myeloablative stem cell transplantation. Bone Marrow Transplant 2001; 27:659-61. [PMID: 11319599 DOI: 10.1038/sj.bmt.1702853] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2000] [Accepted: 12/14/2000] [Indexed: 11/09/2022]
Abstract
Fungal arthritis and osteomyelitis are rare and documented mainly in immunocompromised or neutropenic patients. Patients receiving therapeutic immunosuppression for organ transplants have also reported to suffer from aspergillus osteoarthritis. We describe two patients with aspergillus arthritis of the knee joint following fludarabine-based non-myeloablative stem cell transplantation. Both were suffering from acute and chronic GVHD and treated with heavy immunosuppression including steroids and cyclosporine. Interestingly in one of our patients, the arthritis was almost asymptomatic and did not spread to other organs. Heavy pre- and post-transplant immunosuppression is a major risk factor for invasive fungal infection, which can involve remote organs and manifest in an indolent and atypical manner.
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Affiliation(s)
- S Panigrahi
- Department of Bone Marrow Transplantation, Hadassah University Hospital, Hebrew University - Hadassah Medical School, Jerusalem, Israel
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Hassan A, Panigrahi S, Ray A, Nabok A. Surface plasmon resonance studies on spin coated films of azobenzene-substituted calix-4-resorcinarene molecules. ACTA ACUST UNITED AC 2000. [DOI: 10.1049/ip-smt:20000371] [Citation(s) in RCA: 12] [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: 11/19/2022]
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Abstract
ABSTRACT Four linear regression methods and a generalized regression neural network (GRNN) were evaluated for estimation of moisture occurrence and duration at the flag leaf level of wheat. Moisture on a flat-plate resistance sensor was predicted by time, temperature, relative humidity, wind speed, solar radiation, and precipitation provided by an automated weather station. Dew onset was estimated by a classification regression tree model. The models were developed using micrometeorological data measured from 1993 to 1995 and tested on data from 1996 and 1997. The GRNN outperformed the linear regression methods in predicting moisture occurrence with and without dew estimation as well as in predicting duration of moisture periods. Average absolute error for prediction of moisture occurrence by GRNN was at least 31% smaller than that obtained by the linear regression methods. Moreover, the GRNN correctly predicted 92.7% of the moisture duration periods critical to disease development in the test data, while the best linear method correctly predicted only 86.6% for the same data. Temporal error distribution in prediction of moisture periods was more highly concentrated around the correct value for the GRNN than linear regression methods. Neural network technology is a promising tool for reasonably precise and accurate moisture monitoring in plant disease management.
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Affiliation(s)
- S Panigrahi
- Natural Resources Institute, University of Greenwich, Chatham Maritime, Kent, England
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Panigrahi S, Bestwick LA, Davis RH, Wood CD. The nutritive value of stackburned yellow maize for livestock: tests in vitro and in broiler chicks. Br J Nutr 1996; 76:97-108. [PMID: 8774220 DOI: 10.1079/bjn19960012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Difference in the nutritive value of four grades of stackburned yellow maize, obtained from a single storage unit in Mozambique, were examined. Samples were analysed for chemical composition, and subjected to the following in vitro assays for estimating digestibility: total dietary fibre and pancreatin for non-ruminants, and gas production using sheep rumen fluid for ruminant livestock. Samples were also fed to broiler chicks at 600 g/kg diet in a growth trial. There were no significant differences in crude protein contents of the maize samples, but there was evidence for the development of Maillard reaction products. Detectable amino acids were lower in discoloured maize, with decreases of 52% in lysine, 35% in arginine, and 15% in glycine concentration in the most severely discoloured sample compared with control. Total starch, reducing sugar, acid-detergent fibre and amylase-neutral-detergent fibre values increased, while total non-reducing sugar content decreased with increased discolouration. Total dietary fibre and pancreatin assays indicated a lowering in digestibility of maize with increasing discolouration. Weight gain of chicks (P = 0.0228), efficiency of feed utilization (P = 0.0009) and the metabolizable energy value of diets decreased (P < 0.0001) with increasing stackburn discolouration. There were no significant effects on N retention of diets. In vitro fermentation using sheep rumen fluid showed a linear decrease in gas production with increasing maize discolouration, indicating a reduction in rumen degradability with stackburn.
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Affiliation(s)
- S Panigrahi
- Natural Resources Institute, Chatham Maritime
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Panigrahi S, Plumb VE. Effects on dietary phosphorus of treating cottonseed meal with crystalline ferrous sulphate for the prevention of brown yolk discolouration. Br Poult Sci 1996; 37:403-11. [PMID: 8773849 DOI: 10.1080/00071669608417871] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
1. Two experiments were carried out to examine whether the adverse effects on laying hen performance of treating cottonseed meal (CSM) with crystalline ferrous sulphate heptahydrate (FSH) to prevent brown yolk discolouration, was a consequence of iron reducing the availability of dietary phosphorus. Two batches of CSM, with different free gossypol and cyclopropenoid fatty acid contents, were treated with FSH at a 4:1 weight ratio of iron to free gossypol, and incorporated into diets at 300 g/kg with or without supplementation with sodium dihydrogen phosphate (SHP), and fed to hens. 2. FSH treatment of CSM reduced food intake and egg production. Although performance was improved by supplementing the FSH-treated CSM diets with SHP, it was still poorer than that achieved by hens fed a non-CSM control diet. 3. Brown yolk discolouration was prevented by treatment of CSM with FSH. Additional phosphorus did not produce any significant effects on brown colour development in yolks, indicating that the bioavailable gossypol content of the diets had not been altered; however, chemical analyses showed an apparent increase in the free gossypol content of the diets with the inclusion of SHP, suggesting that the assay gives misleading results.
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Affiliation(s)
- S Panigrahi
- Natural Resources Institute, Chatham Maritime, Kent, England
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Panigrahi S, Oguntona EB, Roberts BR. Effects of oven-drying tubers of two high-protein sweet potato varieties at different temperatures on their feeding value in broilers. Br Poult Sci 1996; 37:173-88. [PMID: 8833537 DOI: 10.1080/00071669608417846] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
1. Unpeeled tubers from 2 high-protein varieties of sweet potato (white-fleshed Bosbok, and orange-fleshed Carmel) were chipped and oven-dried at 40, 60, or 80 degrees C, to examine the effects on nutritive value. The dried ground chips were substituted for maize at 500 g/kg and the diets fed to day-old, Ross-1 broiler chicks for 3 weeks. 2. Compared with Carmel, Bosbok had a lower crude protein content (90 V. 138 g/kg DM) and trypsin inhibitor activity (TIA) (3 v. 5 mg of trypsin inhibited per g flour). Processing did not significantly affect TIA, but the lysine and cystine contents were lowered and the starch content raised as the drying temperature increased. However, whereas this was reflected in increased reducing sugars in Carmel, there was no trend in Bosbok. 3. The results of in vitro pancreatin digestibility and total dietary fibre assays showed variety and processing temperature to be significant factors influencing the nutritive value of sweet potato tubers, with a variety temperature interaction also being indicated. The interaction was also observed for weight gain, dry matter intake, water: food intake ratios, excreta water content, presence of bile in excreta and liver weights. The best growth was obtained with Bosbok dried at 60 degrees C , for which liveweights at 21 d were 11% lower than for the maize controls.
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Affiliation(s)
- S Panigrahi
- Natural Resources Institute, Chatham Maritime, Kent, England
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Abstract
The role of bioassay in the diagnosis of mycotoxicoses in farm animals is discussed. Methods for detecting mycotoxin contamination of animal feeds using biological species (aquatic and terrestrial animals and plants but excluding bacteria and yeast) are reviewed. Factors that need to be considered when choosing and using particular bioassay procedures in a feed-screening programme are discussed in relation to the occurrence of false positives and false negatives.
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Affiliation(s)
- S Panigrahi
- Natural Resources Institute, Chatham Maritime, Kent, UK
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Abstract
1. The effects of drying cassava root at different rates on its composition and toxicity to broiler chicks were examined. Unpeeled roots from a high-cyanide cultivar of cassava were chipped and dried at 25 degrees C to a moisture content of below 100 g/kg over 24 h for fast-dried meal (FD) or 72 h for slow-dried meal (SD). The meals were incorporated at 250 and 500 g/kg into semi-synthetic diets which were fed to day-old broiler chicks as mash or pellets in separate experiments. 2. The two drying rates produced meals with similar concentrations of polyphenols, but different concentrations of cyanogens, the latter being 38 and 482 mg total cyanide/kg for SD and FD, respectively. The linamarin, acetonecyanohydrin or total cyanide content measurements of pelleted diets were highly correlated. 3. Growth rates of chicks fed on SD-based diets were significantly higher than those of chicks fed on FD-based diets. Compared with a control diet, weight gain of chicks fed on the 500 g FD/kg diet (containing 258 mg total cyanide/kg) was 77% lower, although performance also appeared to be reduced at 142 mg total cyanide/kg. 4. The ratio of water:food intake of chicks was higher in FD than in SD groups, and this was reflected in the high water content of excreta. There was increased bile excretion, the chloretic effect increasing with the cyanogen content of diet. Pancreas weights were lower in FD than in SD groups in experiment 1 (mash diets), but not in experiment 2 (pelleted diets), while there was a significant interaction between drying method and cassava inclusion rate on liver weight in experiment 2, but not in experiment 1. There were no effects on the mortality rate. 5. Pelleting of diets generated high temperatures, but did not significantly alter the cyanogen concentration or the growth of the chicks. 6. Thus, slower rates of drying cassava roots produce meals with lower cyanogen concentration that are, consequently, less toxic to broiler chicks. Cassava root meal of less than 40 mg total cyanide/kg can be fed to broiler chicks at 500 g/kg without any adverse effects.
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Affiliation(s)
- S Panigrahi
- Natural Resources Institute, Chatham Maritime, Kent, UK
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Abstract
Yellow discoloration often develops in rice kernels during post-harvest storage, due possibly to fungal activity. The present study examined the changes in nutrient composition taking place during yellowing of rice, and the effects of feeding rats and broiler chicks on a moderately yellow rice at 600 g/kg diet. Nitrogen content was found to be higher in rice grains that had become more yellow, only part of the increase being in non-protein-N; however, relative to crude protein (N x 6.25) the concentrations of lysine, methionine, cystine and arginine were lower. There were no significant differences between white and yellow rice in the food intake, weight gain and efficiency of food utilization (EFU) of rats and chicks when diets were formulated to contain similar nutrient concentrations, or the same basal ingredient composition. Diet pelleting increased food intake and weight gain in both animal species, but reduced dry matter and energy digestibility in rats; effects on nutrient retention in chicks were largely non-significant. Liver weights of rats and chicks and pancreas weights of chicks were unaffected by yellow rice; however, chicks fed on mash had a larger pancreas on average than those fed on pellets. Thus, whilst the nutrient composition of rice is altered during yellowing, a moderately yellow rice is unlikely to produce major adverse effects when fed to rats and broiler chicks.
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Affiliation(s)
- S Panigrahi
- Natural Resources Institute, Chatham Maritime, Kent
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Abstract
1. The effects of including copra meals from different sources in nutritionally-balanced broiler chick diets were compared. A meal screw press-expelled twice to contain 75 g residual lipid/kg produced a lower growth rate than a meal pressed once to contain 220 g lipid/kg. 2. Chicks fed copra meal at 400 g/kg diet had a higher growth rate on a diet formulated to contain 12.4 g lysine/kg and 8.3 g methionine+cystine/kg than on a diet containing 13.5 and 9.0 g/kg of the respective amino acids; however, in a second experiment performance of chicks was unaffected when the low amino acid, low-oil copra meal-based diet was supplemented with synthetic amino acids.
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Affiliation(s)
- S Panigrahi
- Natural Resources Institute, Chatham Maritime, Kent, England
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Abstract
The effects of dietary screw-pressed cottonseed meal (CSM) and iron-treated CSM on laying performance and discolourations in eggs were examined in a range of hen genotypes. In experiment 1, six genotypes, obtained at point-of-lay from various sources, were fed on a non-CSM diet, a diet with 300 g CSM/kg, and a diet containing iron-treated CSM at 300 g/kg. In experiment 2, two of these genotypes were reared together from day-old and were fed from 10 to 18 weeks on a non-CSM diet or a diet containing iron-treated CSM at 250 g/kg. They were then fed on a non-CSM layer diet or a diet containing iron-treated CSM at 300 g/kg, in a 2 x 2 x 2 factorial design that also examined the effects of the rearing diet. 2. The effects on food intakes and egg production of including CSM and iron-treated CSM in layer diets depended on the genotype of the hens. The strongest interaction between breed and diet was on food intake, the breed Hubbard Golden Comet (HGC) being the least tolerant of CSM and iron-treated CSM. 3. Inclusion of iron-treated CSM in the rearer diet to supply approximately 70% of the dietary protein had no adverse effects on growth or age at first egg. Food intake and egg production between 18 and 26 weeks were affected by the iron-treated CSM layer diet, but there were no carry-over effects attributable to the rearing diets. 4. Genotype was not a factor in the development of the gossypol-related brown yolk discolouration in fresh or warm-stored eggs of hens fed on a CSM-based diet containing 197 mg free gossypol/kg and 52 mg cyclopropenoid fatty acids (CPFA)/kg (experiment 1). 5. In both experiments, the susceptibility of eggs to the CPFA-related cold storage effects depended on the genotype of the hen, eggs from hens of the HCG breed being more affected than those of ISA hens. 6. Treatment of CSM with crystalline ferrous sulphate heptahydrate, at a 4:1 weight ratio of iron to free gossypol, prevented brown yolk discolourations in all genotypes tested, as assessed by subjecting egg yolks to atmospheres of ammonia, and cold storage of eggs.
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Affiliation(s)
- S Panigrahi
- Natural Resources Institute, Chatham, Kent, England
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Panigrahi S, Hammonds TW. Egg discolouration effects of including screw‐press cottonseed meal in laying hen diets and their prevention. Br Poult Sci 1990. [DOI: 10.1080/00071669008417236] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Abstract
1. The effects of feeding a screw-press expelled cottonseed meal (CSM) to laying hens at dietary concentrations of up to 300 g/kg, were studied over a 10 week period. 2. The overall performance of hens fed on a 75g CSM/kg diet was not significantly different from controls but a 300g CSM/kg diet, containing 255 mg free gossypol/kg and 87 mg cyclopropenoid fatty acids (CPFA)/kg and giving daily intakes per hen of 26.2 mg free gossypol and 9.0 mg CPFA, significantly reduced food intake (P less than 0.01) and egg production (P less than 0.01). The 150g CSM/kg diet (daily intakes of 14.6 mg free gossypol and 4.8 mg CPFA per hen) did not produce adverse effects initially but egg production was slightly depressed towards the end of the experimental period. 3. Treatment of the CSM with a solution of ferrous sulphate hepta-hydrate for inclusion in a 300g CSM/kg diet (100 mg/kg supplemental dietary iron) further reduced food intake (P less than 0.05) and egg production (P less than 0.05). 4. Storage of eggs at warm temperatures for up to 1 month did not lead to discolourations of any kind in the CSM diet groups, but resulted in yolk mottling, a condition reduced by treatment of the CSM with iron. 5. Storage of eggs at cold temperatures for 3 months resulted in brown yolk discolouration and the initial stages of pink albumen discolouration in the 300g CSM/kg diet group; the brown yolk discolouration was reduced by treatment of the CSM with iron.
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Affiliation(s)
- S Panigrahi
- Overseas Development Natural Resources Institute, Industrial Development Department, Abingdon, Oxfordshire, England
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Abstract
1. Two experiments were carried out in which fertile, White Leghorn eggs were individually subjected to atmospheric ammonia, for 24 h before incubation, in order to examine the effects on embryo development. 2. In experiment 1, development was unaffected by 0.35 mg/l (493 microliters/l) atmospheric ammonia and slightly reduced by 0.7 mg/l (986 microliters/l) while 7 mg/l (9,860 microliters/l) produced 100% mortality. In experiment 2, embryo development was unaffected by 0.35 mg/l atmospheric ammonia, but severely reduced by 3.15 mg/l (4,437 microliters/l).
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Affiliation(s)
- S Panigrahi
- Overseas Development Natural Resources Institute, Industrial Development Department, Culham, Oxfordshire, England
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Abstract
1. Broiler chicks fed on a diet containing 500 g/kg expeller copra cake of high residual oil content not only retained less dry matter and gained less weight than those fed on a control diet with no copra, they also experienced difficulty in achieving similar food intakes. 2. Chicks given the 500 g/kg copra ration initially displayed an excited behaviour pattern, which may have developed out of frustration as they could neither derive adequate nourishment from their food nor increase food intakes sufficiently to allow them to achieve their genetic potential for growth. 3. Chicks however showed considerable adaptation in that efficiency of food utilisation and intakes were increased gradually; the latter appeared to be partly regulated by an increased intake of water that was associated with copra feeding. The surface area of the intestines was also increased in order to facilitate the absorption of nutrients, and greater proportions of the nutrients absorbed were converted into body weight. 4. There were no significant differences in 7-week body weights of chicks fed the control, 125 g/kg and 250 g/kg copra diets. Although weight gains at the 500 g/kg inclusion rate were lower, the carcases of these chicks had less abdominal fat and were consequently leaner.
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Affiliation(s)
- S Panigrahi
- Tropical Development and Research Institute, Overseas Development Administration, Culham, Abingdon, Oxfordshire, United Kingdom
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Panigrahi S, Das NC. Effect of spin scattering and magnetic order on the electronic heat capacity of magnetic superconductors. Phys Rev B Condens Matter 1987; 35:4781-4786. [PMID: 9940650 DOI: 10.1103/physrevb.35.4781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Panigrahi S. Heredity in man. J Indian Med Assoc 1968; 50:102-4. [PMID: 5668658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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