1
|
Chow KW, Sweis JJG, Alawneh D, Jetanalin P, Ascoli C, Kuschel S, Hoyer S, Braniecki M, Sweiss N. Bullous Systemic Lupus Erythematosus Successfully Treated With Intravenous Immunoglobulin and Mycophenolate Mofetil. Cureus 2023; 15:e45800. [PMID: 37876389 PMCID: PMC10590829 DOI: 10.7759/cureus.45800] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2023] [Indexed: 10/26/2023] Open
Abstract
Bullous systemic lupus erythematosus (BSLE) is a rare autoimmune blistering disorder of cutaneous lupus erythematosus (CLE) that typically manifests as an acute vesiculobullous eruption in a patient with systemic lupus erythematosus (SLE). Also, it can rarely present as the initial clinical manifestation of SLE. There is no established US Food and Drug Administration (FDA) therapy for BSLE. We report a case of a 71-year-old Hispanic woman with SLE and lupus nephritis classes III and V who presented to the hospital with a worsening rash with painful, ruptured blisters involving the upper arms, chest, and back. Our patient did not respond to topical or systemic steroids but improved rapidly to combination therapy with intravenous immunoglobulin (IVIg) and mycophenolate mofetil (MMF).
Collapse
Affiliation(s)
- Kevin W Chow
- Internal Medicine, University of Illinois at Chicago, Chicago, USA
| | | | - Diala Alawneh
- Rheumatology, University of Illinois at Chicago, Chicago, USA
| | - Pim Jetanalin
- Rheumatology, University of Illinois at Chicago, Chicago, USA
| | - Christian Ascoli
- Pulmonary and Critical Care Medicine, University of Illinois at Chicago, Chicago, USA
| | | | - Sheryl Hoyer
- Dermatology, University of Illinois at Chicago, Chicago, USA
| | | | - Nadera Sweiss
- Rheumatology, University of Illinois at Chicago, Chicago, USA
| |
Collapse
|
2
|
Magana T, Sanchez IM, Murray T, Kuschel S, Nuovo G, Braniecki M, Bain M. Useful cytological confirmation of HPV 13 in lesional mucosa enhances diagnosis of focal epithelial hyperplasia. Ann Diagn Pathol 2022; 60:151988. [PMID: 35709616 DOI: 10.1016/j.anndiagpath.2022.151988] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 06/04/2022] [Indexed: 11/26/2022]
Abstract
An 11-year-old female presented with multiple oral lesions for several months. Histopathological findings suggested focal epithelial hyperplasia (FEH), also known as Heck disease. FEH is strongly associated with Human papillomavirus (HPV), especially genotypes 13 and 32. An oral swab of a mucosal lesion was subsequently obtained for cytology, immunohistochemistry and in situ hybridization. In addition, in situ hybridization and immunohistochemistry were also performed retrospectively on the biopsy specimen for correlation. The cytology specimen showed squamous cells with enlarged, slightly atypical nuclei and rare perinuclear halos. The histology findings included papillomatosis with acanthosis, mild nuclear atypia and focal perinuclear halos. The immunohistochemistry for the consensus HPV L1 capsid protein was found in both the cytology and biopsy specimens indicating that the lesion was HPV-related. High viral copy numbers of HPV 13 were detected by in situ hybridization in both the cytology and histology specimens. Although histologic features of FEH have been well characterized in the literature, to our knowledge, this is the first case to describe in FEH with adjunct immunohistochemistry and in situ hybridization results. Furthermore, these findings assisted in our diagnosis since the patient's clinical presentation was a diagnostic challenge with smooth dome-shaped papules instead of the typically described flat-topped verrucous lesions seen in FEH. In summary, our case reveals that there is a high concordance between the HPV 13 detection in the cytology and histology of FEH, and that performing cytology in addition to histology can be used to optimize diagnostic evaluation towards appropriate patient care.
Collapse
Affiliation(s)
- Tanya Magana
- University of Illinois College of Medicine, United States of America.
| | - Isabelle M Sanchez
- Department of Dermatology, University of Illinois at Chicago, United States of America
| | - Taryn Murray
- Department of Dermatology, University of Illinois at Chicago, United States of America
| | - Stephanie Kuschel
- Department of Dermatology, University of Illinois at Chicago, United States of America
| | - Gerard Nuovo
- Department of Pathology, The Ohio State University, United States of America
| | - Marylee Braniecki
- Department of Pathology, University of Illinois at Chicago, United States of America
| | - Michelle Bain
- Department of Dermatology, University of Illinois at Chicago, United States of America
| |
Collapse
|
3
|
Flaten HK, Kuschel S, Dellavalle RP, Dunnick CA. Evaluating dermatology curricula in US medical schools. J Am Acad Dermatol 2019; 85:513-514. [PMID: 30633940 DOI: 10.1016/j.jaad.2018.12.049] [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] [Received: 08/08/2018] [Revised: 12/18/2018] [Accepted: 12/20/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Hania K Flaten
- Department of Dermatology, University of Colorado School of Medicine, Aurora, Colorado.
| | | | - Robert P Dellavalle
- Department of Dermatology, University of Colorado School of Medicine, Aurora, Colorado; Dermatology Service, Eastern Colorado Veterans Administration Health Care System, Aurora, Colorado; Department of Epidemiology, Colorado School of Public Health, Aurora, Colorado
| | - Cory A Dunnick
- Department of Dermatology, University of Colorado School of Medicine, Aurora, Colorado; Dermatology Service, Eastern Colorado Veterans Administration Health Care System, Aurora, Colorado.
| |
Collapse
|
4
|
Behm KT, Cole JM, Joglekar AS, Gerstmayr E, Wood JC, Baird CD, Blackburn TG, Duff M, Harvey C, Ilderton A, Kuschel S, Mangles SPD, Marklund M, McKenna P, Murphy CD, Najmudin Z, Poder K, Ridgers CP, Sarri G, Samarin GM, Symes D, Warwick J, Zepf M, Krushelnick K, Thomas AGR. A spectrometer for ultrashort gamma-ray pulses with photon energies greater than 10 MeV. Rev Sci Instrum 2018; 89:113303. [PMID: 30501337 DOI: 10.1063/1.5056248] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 10/16/2018] [Indexed: 06/09/2023]
Abstract
We present a design for a pixelated scintillator based gamma-ray spectrometer for non-linear inverse Compton scattering experiments. By colliding a laser wakefield accelerated electron beam with a tightly focused, intense laser pulse, gamma-ray photons up to 100 MeV energies and with few femtosecond duration may be produced. To measure the energy spectrum and angular distribution, a 33 × 47 array of cesium-iodide crystals was oriented such that the 47 crystal length axis was parallel to the gamma-ray beam and the 33 crystal length axis was oriented in the vertical direction. Using an iterative deconvolution method similar to the YOGI code, modeling of the scintillator response using GEANT4 and fitting to a quantum Monte Carlo calculated photon spectrum, we are able to extract the gamma ray spectra generated by the inverse Compton interaction.
Collapse
Affiliation(s)
- K T Behm
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109-2099, USA
| | - J M Cole
- The John Adams Institute for Accelerator Science, Imperial College London, London SW7 2AZ, United Kingdom
| | - A S Joglekar
- Physics and Astronomy, University of California, Los Angeles, Los Angeles, California 90095, USA
| | - E Gerstmayr
- The John Adams Institute for Accelerator Science, Imperial College London, London SW7 2AZ, United Kingdom
| | - J C Wood
- The John Adams Institute for Accelerator Science, Imperial College London, London SW7 2AZ, United Kingdom
| | - C D Baird
- York Plasma Institute, Department of Physics, University of York, York YO10 5DD, United Kingdom
| | - T G Blackburn
- Department of Physics, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
| | - M Duff
- SUPA Department of Physics, University of Strathclyde, Glasgow G4 0NG, United Kingdom
| | - C Harvey
- Department of Physics, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
| | - A Ilderton
- Department of Physics, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
| | - S Kuschel
- Institut für Optik und Quantenelektronik, Friedrich-Schiller-Universität, 07743 Jena, Germany
| | - S P D Mangles
- The John Adams Institute for Accelerator Science, Imperial College London, London SW7 2AZ, United Kingdom
| | - M Marklund
- Department of Physics, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
| | - P McKenna
- SUPA Department of Physics, University of Strathclyde, Glasgow G4 0NG, United Kingdom
| | - C D Murphy
- York Plasma Institute, Department of Physics, University of York, York YO10 5DD, United Kingdom
| | - Z Najmudin
- The John Adams Institute for Accelerator Science, Imperial College London, London SW7 2AZ, United Kingdom
| | - K Poder
- The John Adams Institute for Accelerator Science, Imperial College London, London SW7 2AZ, United Kingdom
| | - C P Ridgers
- York Plasma Institute, Department of Physics, University of York, York YO10 5DD, United Kingdom
| | - G Sarri
- School of Mathematics and Physics, The Queen's University of Belfast, BT7 1NN Belfast, United Kingdom
| | - G M Samarin
- School of Mathematics and Physics, The Queen's University of Belfast, BT7 1NN Belfast, United Kingdom
| | - D Symes
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot OX11 0QX, United Kingdom
| | - J Warwick
- School of Mathematics and Physics, The Queen's University of Belfast, BT7 1NN Belfast, United Kingdom
| | - M Zepf
- Institut für Optik und Quantenelektronik, Friedrich-Schiller-Universität, 07743 Jena, Germany
| | - K Krushelnick
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109-2099, USA
| | - A G R Thomas
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109-2099, USA
| |
Collapse
|
5
|
Kuschel S, Patel RR, Dellavalle RP. Dermatology on Flickr. Dermatol Online J 2018; 24:13030/qt3cf3n1mc. [PMID: 30677810] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 11/20/2018] [Indexed: 06/09/2023] Open
Abstract
Flickr, which was launched in 2004, is one of the oldest photo-sharing services online. The company, which was once at the forefront of the internet social media explosion, lost users and received criticism as its repeated acquisitions by other companies forced users to adapt to new owners. Now facing another acquisition by the online photo-sharing service SmugMug, the future is uncertain again for the once popular internet and mobile application service. Flickr, with its rapid rise in popularity, sudden halt in growth, and its gradual loss of users and popularity, has been repeatedly looked to as a lesson for other internet startups on the necessity of adapting quickly in the current internet age. Given the rise of social media use in the healthcare field, and the long-standing presence of Flickr on the internet, this study investigated the presence of dermatology-related content on Flickr and how the photo-sharing platform has applied to the visual field of dermatology, its dermatologists, and its professional associations.
Collapse
Affiliation(s)
| | | | - Robert P Dellavalle
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, Colorado Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado Dermatology Service, US Department of Veteran Affairs, Eastern Colorado Health Care System, Denver, Colorado.
| |
Collapse
|
6
|
Kuschel S, Schwab MB, Yeung M, Hollatz D, Seidel A, Ziegler W, Sävert A, Kaluza MC, Zepf M. Controlling the Self-Injection Threshold in Laser Wakefield Accelerators. Phys Rev Lett 2018; 121:154801. [PMID: 30362794 DOI: 10.1103/physrevlett.121.154801] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Indexed: 06/08/2023]
Abstract
Controlling the parameters of a laser plasma accelerated electron beam is a topic of intense research with a particular focus placed on controlling the injection phase of electrons into the accelerating structure from the background plasma. An essential prerequisite for high-quality beams is dark-current free acceleration (i.e., no electrons accelerated beyond those deliberately injected). We show that small-scale density ripples in the background plasma are sufficient to cause the uncontrolled (self-)injection of electrons. Such ripples can be as short as ∼50 μm and can therefore not be resolved by standard interferometry. Background free injection with substantially improved beam characteristics (divergence and pointing) is demonstrated in a gas cell designed for a controlled gas flow. The results are supported by an analytical theory as well as 3D particle in cell simulations.
Collapse
Affiliation(s)
- S Kuschel
- Helmholtz Insitute Jena, Fröbelstieg 3, 07743 Jena, Germany
- Institute of Optics and Quantumelectronics, University of Jena, Max-Wien-Platz 1, 07743 Jena, Germany
| | - M B Schwab
- Helmholtz Insitute Jena, Fröbelstieg 3, 07743 Jena, Germany
- Institute of Optics and Quantumelectronics, University of Jena, Max-Wien-Platz 1, 07743 Jena, Germany
| | - M Yeung
- Helmholtz Insitute Jena, Fröbelstieg 3, 07743 Jena, Germany
| | - D Hollatz
- Institute of Optics and Quantumelectronics, University of Jena, Max-Wien-Platz 1, 07743 Jena, Germany
| | - A Seidel
- Institute of Optics and Quantumelectronics, University of Jena, Max-Wien-Platz 1, 07743 Jena, Germany
| | - W Ziegler
- Helmholtz Insitute Jena, Fröbelstieg 3, 07743 Jena, Germany
- Institute of Optics and Quantumelectronics, University of Jena, Max-Wien-Platz 1, 07743 Jena, Germany
| | - A Sävert
- Helmholtz Insitute Jena, Fröbelstieg 3, 07743 Jena, Germany
- Institute of Optics and Quantumelectronics, University of Jena, Max-Wien-Platz 1, 07743 Jena, Germany
| | - M C Kaluza
- Helmholtz Insitute Jena, Fröbelstieg 3, 07743 Jena, Germany
- Institute of Optics and Quantumelectronics, University of Jena, Max-Wien-Platz 1, 07743 Jena, Germany
| | - M Zepf
- Helmholtz Insitute Jena, Fröbelstieg 3, 07743 Jena, Germany
- Institute of Optics and Quantumelectronics, University of Jena, Max-Wien-Platz 1, 07743 Jena, Germany
- School of Mathematics and Physics, Queens University Belfast, BT7 1NN, United Kingdom
| |
Collapse
|
7
|
|
8
|
Yeung M, Bierbach J, Eckner E, Rykovanov S, Kuschel S, Sävert A, Förster M, Rödel C, Paulus GG, Cousens S, Coughlan M, Dromey B, Zepf M. Noncollinear Polarization Gating of Attosecond Pulse Trains in the Relativistic Regime. Phys Rev Lett 2015; 115:193903. [PMID: 26588384 DOI: 10.1103/physrevlett.115.193903] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Indexed: 06/05/2023]
Abstract
High order harmonics generated at relativistic intensities have long been recognized as a route to the most powerful extreme ultraviolet pulses. Reliably generating isolated attosecond pulses requires gating to only a single dominant optical cycle, but techniques developed for lower power lasers have not been readily transferable. We present a novel method to temporally gate attosecond pulse trains by combining noncollinear and polarization gating. This scheme uses a split beam configuration which allows pulse gating to be implemented at the high beam fluence typical of multi-TW to PW class laser systems. Scalings for the gate width demonstrate that isolated attosecond pulses are possible even for modest pulse durations achievable for existing and planned future ultrashort high-power laser systems. Experimental results demonstrating the spectral effects of temporal gating on harmonic spectra generated by a relativistic laser plasma interaction are shown.
Collapse
Affiliation(s)
- M Yeung
- Helmholtz-Institut Jena, Fröbelstieg 3, 07743 Jena, Germany
| | - J Bierbach
- Helmholtz-Institut Jena, Fröbelstieg 3, 07743 Jena, Germany
- Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany
| | - E Eckner
- Helmholtz-Institut Jena, Fröbelstieg 3, 07743 Jena, Germany
- Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany
| | - S Rykovanov
- Helmholtz-Institut Jena, Fröbelstieg 3, 07743 Jena, Germany
| | - S Kuschel
- Helmholtz-Institut Jena, Fröbelstieg 3, 07743 Jena, Germany
- Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany
| | - A Sävert
- Helmholtz-Institut Jena, Fröbelstieg 3, 07743 Jena, Germany
- Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany
| | - M Förster
- Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany
| | - C Rödel
- Helmholtz-Institut Jena, Fröbelstieg 3, 07743 Jena, Germany
- Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - G G Paulus
- Helmholtz-Institut Jena, Fröbelstieg 3, 07743 Jena, Germany
- Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany
| | - S Cousens
- Department of Physics and Astronomy, Queen's University Belfast, BT7 1NN, United Kingdom
| | - M Coughlan
- Department of Physics and Astronomy, Queen's University Belfast, BT7 1NN, United Kingdom
| | - B Dromey
- Department of Physics and Astronomy, Queen's University Belfast, BT7 1NN, United Kingdom
| | - M Zepf
- Helmholtz-Institut Jena, Fröbelstieg 3, 07743 Jena, Germany
- Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany
- Department of Physics and Astronomy, Queen's University Belfast, BT7 1NN, United Kingdom
| |
Collapse
|
9
|
Lawrenz J, Puetz J, Kuschel S, Rudzinski J. A community outreach influenza vaccination drive as a model for mass disaster prophylaxis. Am J Disaster Med 2014; 8:287-92. [PMID: 24481894 DOI: 10.5055/ajdm.2013.0136] [Citation(s) in RCA: 3] [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: 11/05/2022]
Abstract
In October 2012, more than 120 student and faculty volunteers from six different health professional schools (medical, pharmacy, and nursing) vaccinated 430 individuals against influenza at five point of distribution sites in Winnebago County, IL, at no cost to the recipients. In total, 18 organizations, including faith-based and nonprofit groups, organized this vaccination drive, targeting an at-risk population of homeless and impoverished individuals. Preclinical students were provided just-in-time training in vaccine administration and Incident Command System methodology. This community-wide collaborative effort uniquely demonstrates the effectiveness of student volunteerism in emergency preparedness, as well as providing a model for mass prophylaxis in a disaster scenario.
Collapse
Affiliation(s)
- Joshua Lawrenz
- Department of Surgery, University of Illinois College of Medicine, Rockford, Illinois
| | - Joseph Puetz
- Department of Surgery, University of Illinois College of Medicine, Rockford, Illinois
| | - Stephanie Kuschel
- Emergency Preparedness Coordinator, Region 1 RHCC/Disaster Hospital, Rockford Health System, Rockford, Illinois
| | - John Rudzinski
- Clinical Professor, Department of Surgery, University of Illinois College of Medicine, Rockford, Illinois; Medical Director, Region 1 RHCC/Disaster Hospital, Rockford Health System, Rockford, Illinois
| |
Collapse
|
10
|
Fuchs S, Rödel C, Krebs M, Hädrich S, Bierbach J, Paz AE, Kuschel S, Wünsche M, Hilbert V, Zastrau U, Förster E, Limpert J, Paulus GG. Sensitivity calibration of an imaging extreme ultraviolet spectrometer-detector system for determining the efficiency of broadband extreme ultraviolet sources. Rev Sci Instrum 2013; 84:023101. [PMID: 23464189 DOI: 10.1063/1.4788732] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report on the absolute sensitivity calibration of an extreme ultraviolet (XUV) spectrometer system that is frequently employed to study emission from short-pulse laser experiments. The XUV spectrometer, consisting of a toroidal mirror and a transmission grating, was characterized at a synchrotron source in respect of the ratio of the detected to the incident photon flux at photon energies ranging from 15.5 eV to 99 eV. The absolute calibration allows the determination of the XUV photon number emitted by laser-based XUV sources, e.g., high-harmonic generation from plasma surfaces or in gaseous media. We have demonstrated high-harmonic generation in gases and plasma surfaces providing 2.3 μW and μJ per harmonic using the respective generation mechanisms.
Collapse
Affiliation(s)
- S Fuchs
- Institute of Optics und Quantum Electronics, Friedrich-Schiller-University Jena, Germany.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Pollock BB, Meinecke J, Kuschel S, Ross JS, Shaw JL, Stoafer C, Divol L, Tynan GR, Glenzer SH. Simultaneous imaging electron- and ion-feature Thomson scattering measurements of radiatively heated Xe. Rev Sci Instrum 2012; 83:10E348. [PMID: 23127005 DOI: 10.1063/1.4740526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Uniform density and temperature Xe plasmas have been produced over >4 mm scale-lengths using x-rays generated in a cylindrical Pb cavity. The cavity is 750 μm in depth and diameter, and is heated by a 300 J, 2 ns square, 1054 nm laser pulse focused to a spot size of 200 μm at the cavity entrance. The plasma is characterized by simultaneous imaging Thomson scattering measurements from both the electron and ion scattering features. The electron feature measurement determines the spatial electron density and temperature profile, and using these parameters as constraints in the ion feature analysis allows an accurate determination of the charge state of the Xe ions. The Thomson scattering probe beam is 40 J, 200 ps, and 527 nm, and is focused to a 100 μm spot size at the entrance of the Pb cavity. Each system has a spatial resolution of 25 μm, a temporal resolution of 200 ps (as determined by the probe duration), and a spectral resolution of 2 nm for the electron feature system and 0.025 nm for the ion feature system. The experiment is performed in a Xe filled target chamber at a neutral pressure of 3-10 Torr, and the x-rays produced in the Pb ionize and heat the Xe to a charge state of 20±4 at up to 200 eV electron temperatures.
Collapse
Affiliation(s)
- B B Pollock
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Aurand B, Rödel C, Zhao H, Kuschel S, Wünsche M, Jäckel O, Heyer M, Wunderlich F, Kaluza MC, Paulus GG, Kuehl T. Note: A large aperture four-mirror reflective wave-plate for high-intensity short-pulse laser experiments. Rev Sci Instrum 2012; 83:036104. [PMID: 22462970 DOI: 10.1063/1.3694659] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report on a four-mirror reflective wave-plate system based on a phase-shifting mirror (PSM) for a continuous variation of elliptical polarization without changing the beam position and direction. The system presented and characterized here can replace a conventional retardation plate providing all advantages of a PSM, such as high damage-threshold, large scalability, and low dispersion. This makes reflective wave-plates an ideal tool for ultra-high power laser applications.
Collapse
Affiliation(s)
- B Aurand
- Helmholtz-Institut Jena, Helmholtzweg 4, 07743 Jena, Germany.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Bremerich DH, Kuschel S, Fetsch N, Zwissler B, Byhahn C, Meininger D. [Levobupivacaine for parturients undergoing elective caesarean delivery. A dose-finding investigation]. Anaesthesist 2007; 56:772-9. [PMID: 17508190 DOI: 10.1007/s00101-007-1201-1] [Citation(s) in RCA: 6] [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: 10/23/2022]
Abstract
BACKGROUND The optimum intrathecal dose of hyperbaric levobupivacaine for spinal anaesthesia during elective caesarean section has not yet been investigated. METHODS A total of 30 parturients undergoing elective caesarean section were included in this prospective, randomised, double-blind study. Parturients received either 7.5, 10 or 12.5 mg hyperbaric 0.5% levobupivacaine intrathecally. Analgesic, sensory and motor block characteristics as well as maternal and fetal levobupivacaine plasma concentrations were determined. RESULTS Of the parturients receiving 7.5 mg levobupivacaine 40% required supplementary intravenous opioid analgesics intraoperatively and none achieved complete motor block. Compared to 7.5 mg levobupivacaine, 10 and 12.5 mg significantly prolonged duration of effective analgesia postoperatively (median: 45 vs. 81 and 96 min, respectively). Both maternal and fetal levobupivacaine plasma concentrations were low, with dose-dependent, statistically significant differences in maternal plasma concentrations. CONCLUSIONS Levobupivacaine 7.5 mg did not provide satisfactory intraoperative analgesia in all parturients. There were no statistically significant differences between 10 and 12.5 mg levobupivacaine with respect to analgesic, sensory and motor block characteristics. Therefore, based on these data, 10 mg levobupivacaine is recommended for parturients undergoing elective caesarean section with spinal anaesthesia.
Collapse
MESH Headings
- Adult
- Analgesics, Opioid/therapeutic use
- Anesthesia, Obstetrical
- Anesthesia, Spinal
- Anesthetics, Local/administration & dosage
- Anesthetics, Local/adverse effects
- Anesthetics, Local/blood
- Blood Pressure/drug effects
- Blood Pressure/physiology
- Bupivacaine/administration & dosage
- Bupivacaine/adverse effects
- Bupivacaine/analogs & derivatives
- Bupivacaine/blood
- Cesarean Section
- Dose-Response Relationship, Drug
- Double-Blind Method
- Female
- Fetus/metabolism
- Heart Rate/drug effects
- Heart Rate/physiology
- Humans
- Infant, Newborn
- Injections, Spinal
- Levobupivacaine
- Nerve Block
- Pain Measurement/drug effects
- Pain, Postoperative/epidemiology
- Pregnancy
Collapse
Affiliation(s)
- D H Bremerich
- Abteilung für Anästhesie und operative Intensivmedizin, St. Vincenz Krankenhaus Limburg, Auf dem Schafsberg, 65549 Limburg.
| | | | | | | | | | | |
Collapse
|
14
|
Gross S, Volkers P, Eckert-Ziem M, Kuschel S, Schäffner G. Validation of in vitro potency assays for tetanus immunoglobulin. Pharmeuropa Bio 2006; 2006:1-6. [PMID: 17270126] [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] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The European Pharmacopoeia (Ph. Eur.) monograph Human tetanus immunoglobulin (0398) gives a clear outline of the in vivo assay to be performed to determine the potency of human tetanus immunoglobulins during their development. Furthermore, it states that an in vitro method shall be validated for the potency estimation. Since no further guidance is given on the in vitro assay, every control laboratory concerned is free to design and validate an in-house method. At the moment there is no agreed method available. The aim of this study was to validate and compare 2 alternative in vitro assays, i.e. an enzyme-linked immunoassay (EIA) and a toxoid inhibition assay (TIA). The potency of 2 tetanus immunoglobulin preparations (Product 1, Product 2) was estimated against the WHO International Standard for tetanus immunoglobulin, using the tetanus EIA and TIA. The coefficient of variation (CV) to characterise the assay precision was 3.2% (EIA) and 3.6% (TIA), and the corresponding CV for intra-assay variation was 4.7% (EIA) and 5.5% (TIA). Using a spiking procedure, the 2nd part of the experiment investigated recovery of a known anti-tetanus potency. The recovery of samples spiked with defined amounts of reference preparation ranged from 104 112% (EIA) and 114 125% (TIA) respectively, resulting in a mean bias of 2.2 IU/ml (95% confidence interval (CI): -1.1-5.4 IU/ml, EIA) and 5.8 IU/ml (95% CI: 1.4 10.2 IU/ml, TIA). Good agreement was observed between the in vivo and in vitro assay results: the relative potency results of the EIA and TIA as compared to those of the in vivo assay performed by the manufacturers of the 2 tetanus immunoglobulins were for the EIA in the range of 104+/-10% for Product 1 and 100+/-6% for Product 2, and for the TIA in the range of 107+/-6% for Product 1 and 100+/-7% for Product 2. Tetanus EIA and TIA are suitable quality control methods for polyclonal tetanus immunoglobulin, which can be standardised in a quality control laboratory using a quality assurance system. In a collaborative study it will now be evaluated whether the validated methods can be proposed as common in vitro batch potency assays for replacement of the in vivo mouse assay.
Collapse
Affiliation(s)
- S Gross
- Section Mono- and Polyclonal Antibodies, Paul-Ehrlich-Institute, Paul-Ehrlich-Strasse, 51-59, 63225 Langen, Germany.
| | | | | | | | | |
Collapse
|
15
|
Kuschel S, Schuessler B. Results of a prospective observational study on efficacy and safety of the TOT-SAFYRE® (TOT/S), a composite silicone-polypropylene sling system for the treatment of stress urinary incontinence (SUI). Geburtshilfe Frauenheilkd 2006. [DOI: 10.1055/s-2006-952783] [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] Open
|