1
|
Olson C, Bellmore A, Moreno MA. Elucidating College Students' Cyberstalking Victimization Experiences. Cyberpsychol Behav Soc Netw 2024; 27:208-213. [PMID: 38109214 DOI: 10.1089/cyber.2023.0180] [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: 12/20/2023]
Abstract
Given that college students are high users of social media, an exploration of their experiences with cyberstalking victimization on social media is imperative. In this cross-sectional online survey study, 200 college student participants at a large state university (Mage = 19.93, SD = 1.72) were recruited. The online survey asked participants to self-identify as targets of cyberstalking; those who identified themselves as having had an experience with cyberstalking victimization were asked questions about their experience, including their relationship with the perpetrator, the duration of their experience, when the experience occurred, and the behaviors that were enacted by the perpetrator, both off and on social media. Analyses included assessing prevalence and descriptive statistics. Among participants, 14 percent self-identified as experiencing victimization. The majority (82.1 percent) experienced victimization from either a peer who was not a friend, a stranger, or an ex-romantic partner. Regarding the duration of experiences, 82.1 percent reported their experience lasted 6 months or fewer, and for the majority (67.9 percent), their experience happened over 1 year ago. Of targets, 96.4 percent experienced a communication technology behavior, whereas 92.9 percent experienced a behavior that occurred on social media. Potential implications include widening the scope of examination of cyberstalking victimization experiences in research and screening for cyberstalking victimization in college settings.
Collapse
Affiliation(s)
- Chelsea Olson
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Amy Bellmore
- Department of Educational Psychology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Megan A Moreno
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wisconsin, USA
| |
Collapse
|
2
|
Snow J, Olson C, Torres E, Shirley K, Cazalas E. A Perovskite-Graphene Device for X-ray Detection. Carbon N Y 2024; 216:118586. [PMID: 38046671 PMCID: PMC10688579 DOI: 10.1016/j.carbon.2023.118586] [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] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
This study examines a perovskite-based graphene field effect transistor (P-GFET) device for X-ray detection. The device architecture consisted of a commercially available GFET-S20 chip, produced by Graphenea, with a layer of methylammonium lead iodide (MAPbI3) perovskite spin coated onto the top of it. This device was exposed to the field of a molybdenum target X-ray tube with beam settings between 20-60 kVp (X-ray tube voltage) and 30-300 uA (X-ray tube current). Dose measurements were taken with an ion-chamber and thermo-luminescent dosimeters and used to determine the sensitivity of the device as a function of the X-ray tube voltage and current, as well as source-drain voltage. The X-ray tube was also simulated in this work with GEANT4 and MCNP to determine the dose rate and power incident on the device during irradiation. These simulations were then used to determine the responsivity as a function of the X-ray tube voltage and current, as well as the source-drain voltage. Overall, a strong positive correlation between sensitivity and source-drain voltage was found. Conversely, the sensitivity was found to decrease - roughly exponentially - as a function of both the X-ray tube current and energy. Similar trends were seen with responsivity. We report the models used for the study as well as address the feasibility of the device as a low-energy (< 70 keV) X-ray photon detector.
Collapse
Affiliation(s)
- J Snow
- Nuclear Engineering Program, Department of Civil and Environmental Engineering, University of Utah, Salt Lake City, UT 84112 USA
| | - C Olson
- Nuclear Engineering Program, Department of Civil and Environmental Engineering, University of Utah, Salt Lake City, UT 84112 USA
| | - E Torres
- Graphenea INC, San Sabastian, Pais Vasco, Spain
| | - K Shirley
- Kairos Sensors LLC, 8404 NE Barberry Dr, Corvallis, OR 97330 USA
| | - E Cazalas
- Nuclear Engineering Program, Department of Civil and Environmental Engineering, University of Utah, Salt Lake City, UT 84112 USA
| |
Collapse
|
3
|
Russ KA, Stecker M, Olson C, Foroud TM, Dage JL. Implementation of Blood‐Based Biomarker Assays to Deliver Consistent and Comparable Data. Alzheimers Dement 2022. [DOI: 10.1002/alz.065790] [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: 12/24/2022]
Affiliation(s)
- Kristen A Russ
- Indiana University School of Medicine Indianapolis IN USA
- National Centralized Repository for Alzheimer's Disease and Related Dementias (NCRAD) Indianapolis IN USA
| | - Mara Stecker
- Indiana University School of Medicine Indianapolis IN USA
- National Centralized Repository for Alzheimer's Disease and Related Dementias (NCRAD) Indianapolis IN USA
| | - Chelsea Olson
- Indiana University School of Medicine Indianapolis IN USA
- National Centralized Repository for Alzheimer's Disease and Related Dementias (NCRAD) Indianapolis IN USA
| | - Tatiana M. Foroud
- Indiana University School of Medicine Indianapolis IN USA
- National Centralized Repository for Alzheimer's Disease and Related Dementias (NCRAD) Indianapolis IN USA
- Stark Neurosciences Research Institute, Indiana University School of Medicine Indianapolis IN USA
| | - Jeffrey L. Dage
- Indiana University School of Medicine Indianapolis IN USA
- National Centralized Repository for Alzheimer's Disease and Related Dementias (NCRAD) Indianapolis IN USA
- Stark Neurosciences Research Institute, Indiana University School of Medicine Indianapolis IN USA
| |
Collapse
|
4
|
Khodaei H, Olson C, Patino D, Rico J, Jin Q, Boateng A. Multi-objective utilization of wood waste recycled from construction and demolition (C&D): Products and characterization. Waste Manag 2022; 149:228-238. [PMID: 35752110 DOI: 10.1016/j.wasman.2022.06.021] [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: 03/04/2022] [Revised: 05/18/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
Producing energy and higher value bio-products from waste materials has been proposed as an economically viable opportunity in the renewable energy sector. However, several challenges associated with the integrated biomass conversion processes remain to be resolved. The present study introduces a multi-faceted plant production of thermal energy and biochar from construction and demolition (C&D) wood chips. The overarching objective of the study is to reduce waste materials while simultaneously producing a self-independent clean thermal energy resource along with value-added co-products such as biochar, biogases and/or activated carbon. The combined thermal energy and slow pyrolysis unit relies on 95% of its energy from waste wood chips to produce thermal energy and high value carbon products. The system not only supplies the energy required for the indirect pyrolysis unit but also provides a major portion of thermal energy demanded for the site. A multi-purpose objective of wood waste management, energy production from waste material, high-quality biochar from waste wood (over 80% carbon), and carbon offsets is demonstrated through the utilization of this plant by addressing some of the major previously problems and challenges faced. The information is useful for techno-economic and life cycle analysis in the next study.
Collapse
Affiliation(s)
- H Khodaei
- Innovative Reduction Strategies Inc., 6415 75 Street, NW, Edmonton, AB T6E 0T3, Canada; University of Alberta, Department of Renewable Resources, 116 St. and 85 Ave., Edmonton, Alberta T6G 2R3, Canada.
| | - C Olson
- Innovative Reduction Strategies Inc., 6415 75 Street, NW, Edmonton, AB T6E 0T3, Canada
| | - D Patino
- Industrial Engineering School, University of Vigo, Lagoas-Marcosende s/n, 36310 Vigo, Spain
| | - J Rico
- Industrial Engineering School, University of Vigo, Lagoas-Marcosende s/n, 36310 Vigo, Spain
| | - Q Jin
- Innovative Reduction Strategies Inc., 6415 75 Street, NW, Edmonton, AB T6E 0T3, Canada
| | - A Boateng
- Alpha Thermal Process, LLC 505, Mennonite Road Royersford, PA 19468, USA
| |
Collapse
|
5
|
Shaughnessy M, La Muraglia G, Rajadurai A, Kumar R, Olson C, Jiang B, Gray N, Tsao H. 705 Cyclin-dependent kinase 9 (CDK9) as a therapeutic target in uveal and triple-wild type melanoma. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.781] [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: 11/15/2022]
|
6
|
Abstract
Given their significance to school violence, this study quantifies the association between bullying victimization and perceptions of safety separately for victimization where the type is not specified versus victimization that is physical in nature. Generalized liner mixed modeling was employed with 5,138 sixth- to eighth-grade students in 24 schools who self-reported on their bullying victimization and perceptions of school safety on an anonymous survey in fall 2015. Results indicate a multiplicative interaction exists with regard to the odds of feeling unsafe at school among those who were bullied at all (odds ratio [ OR] = 3.1) compared to those who were bullied physically ( OR = 9.12). For school nurses who work with students with a variety of concerns and health issues, this research indicates that the use of bullying victimization as an outcome, proxy and/or predictor, requires inquiry into the type of bullying experienced to aid in the care and support received.
Collapse
Affiliation(s)
- John Bowser
- 1 Wisconsin Department of Public Instruction, Madison, WI, USA
| | - James D Larson
- 2 University of Wisconsin-Whitewater, Whitewater, WI, USA
| | - Amy Bellmore
- 3 University of Wisconsin-Madison, Madison, WI, USA
| | | | | |
Collapse
|
7
|
Papneja N, Olson C, Chalchal H, Moser M, Iqbal N, Haider K, Zaidi A, Shaw J, Brunet B, Dueck DA, Abbas T, Ahmed S. Comparisons of outcomes of patients with advanced pancreatic cancer (APC) treated with FOLFIRINOX (FX) versus gemcitabine and nab-paclitaxel (GN): A population-based cohort study. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx369.130a] [Citation(s) in RCA: 1] [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: 11/13/2022] Open
|
8
|
Goodin D, Alexander N, Brown L, Callahan D, Ebey P, Frey D, Gallix R, Geller D, Gibson C, Hoffer J, Maxwell J, McQuillan B, Nikroo A, Nobile A, Olson C, Petzoldt R, Raffray R, Rickman W, Rochau G, D.G. S, Sethian J, Sheliak J, Streit J, Tillack M, Vermillion B, Valmianski E. Demonstrating a Target Supply for Inertial Fusion Energy. Fusion Science and Technology 2017. [DOI: 10.13182/fst05-a838] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- D.T. Goodin
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608,
| | - N.B. Alexander
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608,
| | - L.C. Brown
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608,
| | - D.A. Callahan
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551
| | - P.S. Ebey
- Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545
| | - D.T. Frey
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608,
| | - R. Gallix
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608,
| | - D.A Geller
- Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545
| | - C.R. Gibson
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608,
| | - J.K. Hoffer
- Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545
| | - J.L. Maxwell
- Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545
| | - B.W. McQuillan
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608,
| | - A. Nikroo
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608,
| | - A. Nobile
- Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545
| | - C. Olson
- Sandia National Laboratory, P.O. Box 5800, Albuquerque, New Mexico 87185
| | - R.W. Petzoldt
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608,
| | - R. Raffray
- University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093
| | - W.S. Rickman
- TSD Management Associates, 873 Eugenie Avenue, Encinitas, California 92024
| | - G. Rochau
- Sandia National Laboratory, P.O. Box 5800, Albuquerque, New Mexico 87185
| | - Schroen D.G.
- Schafer Corporation, SNL, P.O. Box 5800, Albuquerque, New Mexico 87185
| | - J. Sethian
- Naval Research Laboratory, 4555 Overlook Avenue, SW, Washington, DC 20375-5000
| | - J.D. Sheliak
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608,
| | - J.E. Streit
- Schafer Corporation, SNL, P.O. Box 5800, Albuquerque, New Mexico 87185
| | - M. Tillack
- University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093
| | - B.A. Vermillion
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608,
| | - E.I. Valmianski
- Consultant to General Atomics, P.O. Box 85608, San Diego, California 92186-5608
| |
Collapse
|
9
|
Olson C, Rochau G, Slutz S, Morrow C, Olson R, Cuneo M, Hanson D, Bennett G, Sanford T, Bailey J, Stygar W, Vesey R, Mehlhorn T, Struve K, Mazarakis M, Savage M, Pointon T, Kiefer M, Rosenthal S, Cochrane K, Schneider L, Glover S, Reed K, Schroen D, Farnum C, Modesto M, Oscar D, Chhabildas L, Boyes J, Vigil V, Keith R, Turgeon M, Cipiti M, Lindgren E, Dandini V, Tran H, Smith D, McDaniel D, Quintenz J, Matzen MK, VanDevender JP, Gauster W, Shephard L, Walck M, Renk T, Tanaka T, Ulrickson M, Meier W, Latkowski J, Moir R, Schmitt R, Reyes S, Abbott R, Peterson R, Pollock G, Ottinger P, Schumer J, Peterson P, Kammer D, Kulcinski G, El-Guebaly L, Moses G, Sviatoslavsky I, Sawan M, Anderson M, Bonazza R, Oakley J, Meekunasombat P, De Groot J, Jensen N, Abdou M, Ying A, Calderoni P, Morley N, Abdel-Khalik S, Dillon C, Lascar C, Sadowski D, Curry R, McDonald K, Barkey M, Szaroletta W, Gallix R, Alexander N, Rickman W, Charman C, Shatoff H, Welch D, Rose D, Panchuk P, Louie D, Dean S, Kim A, Nedoseev S, Grabovsky E, Kingsep A, Smirnov V. Development Path for Z-Pinch IFE. Fusion Science and Technology 2017. [DOI: 10.13182/fst05-a757] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- C. Olson
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - G. Rochau
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - S. Slutz
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - C. Morrow
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - R. Olson
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - M. Cuneo
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - D. Hanson
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - G. Bennett
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - T. Sanford
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - J. Bailey
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - W. Stygar
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - R. Vesey
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - T. Mehlhorn
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - K. Struve
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - M. Mazarakis
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - M. Savage
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - T. Pointon
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - M. Kiefer
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - S. Rosenthal
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - K. Cochrane
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - L. Schneider
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - S. Glover
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - K. Reed
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - D. Schroen
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - C. Farnum
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - M. Modesto
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - D. Oscar
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - L. Chhabildas
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - J. Boyes
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - V. Vigil
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - R. Keith
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - M. Turgeon
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - M. Cipiti
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - E. Lindgren
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - V. Dandini
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - H. Tran
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - D. Smith
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - D. McDaniel
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - J. Quintenz
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - M. K. Matzen
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | | | - W. Gauster
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - L. Shephard
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - M. Walck
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - T. Renk
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - T. Tanaka
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - M. Ulrickson
- Sandia National Laboratories, Albuquerque, NM 87107 USA
| | - W. Meier
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
| | - J. Latkowski
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
| | - R. Moir
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
| | - R. Schmitt
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
| | - S. Reyes
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
| | - R. Abbott
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
| | - R. Peterson
- Los Alamos National Laboratories, Los Alamos, NM 87545, USA
| | - G. Pollock
- Los Alamos National Laboratories, Los Alamos, NM 87545, USA
| | - P. Ottinger
- Naval Research Laboratory, Washington, DC 20375, USA
| | - J. Schumer
- Naval Research Laboratory, Washington, DC 20375, USA
| | - P. Peterson
- University of California, Berkeley, CA 94720, USA
| | - D. Kammer
- University of Wisconsin, Madison, WI 53706, USA
| | | | | | - G. Moses
- University of Wisconsin, Madison, WI 53706, USA
| | | | - M. Sawan
- University of Wisconsin, Madison, WI 53706, USA
| | - M. Anderson
- University of Wisconsin, Madison, WI 53706, USA
| | - R. Bonazza
- University of Wisconsin, Madison, WI 53706, USA
| | - J. Oakley
- University of Wisconsin, Madison, WI 53706, USA
| | | | - J. De Groot
- University of California, Davis, Davis, CA 95616, USA
| | - N. Jensen
- University of California, Davis, Davis, CA 95616, USA
| | - M. Abdou
- University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - A. Ying
- University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - P. Calderoni
- University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - N. Morley
- University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - S. Abdel-Khalik
- Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - C. Dillon
- Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - C. Lascar
- Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - D. Sadowski
- Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - R. Curry
- University of Missouri-Columbia, Columbia, MO 65211, USA
| | - K. McDonald
- University of Missouri-Columbia, Columbia, MO 65211, USA
| | - M. Barkey
- University of Alabama, Tuscaloosa, AL 35487, USA
| | - W. Szaroletta
- University of New Mexico, Albuquerque, NM 87106, USA
| | - R. Gallix
- General Atomics, San Diego, CA 92121, USA
| | | | - W. Rickman
- General Atomics, San Diego, CA 92121, USA
| | - C. Charman
- General Atomics, San Diego, CA 92121, USA
| | - H. Shatoff
- General Atomics, San Diego, CA 92121, USA
| | - D. Welch
- ATK Mission Research, Albuquerque, NM 87110, USA
| | - D. Rose
- ATK Mission Research, Albuquerque, NM 87110, USA
| | | | - D. Louie
- Omicron, Albuquerque, NM 87110, USA
| | - S. Dean
- Fusion Power Associates, Gaithersburg, MD 20879, USA
| | - A. Kim
- Institute of High Current Electronics, Tomsk, Russia
| | | | | | | | | |
Collapse
|
10
|
Papneja N, Olson C, Lee C, Lim H, Bryce R, Gesy K, Iqbal N, Abbas T. 410P Ipilimumab efficacy and safety profile in metastatic melanoma in Saskatchewan. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw589.007] [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: 11/14/2022] Open
|
11
|
Abstract
The pathogenesis of the experimental bovine papilloma was investigated by the serial biopsy technique on lesions produced by epidermal scarification or intradermal injection using two strains of BPV. The purpose was to determine the time and sequence of stimulation of the epithelial cells and connective tissue. Following a morphological dormant phase, the first reaction was a fibroblastic proliferation. In papillomas developing from epidermal scarification, this was not marked and was followed by epidermal hyperplasia which progressed to the mature papilloma Fibroplasia in lesions produced by intrademal injection was always greater. Eight to ten % of the developing fibromas had a whorled histologic pattern. The percentage of sites inoculated showing fibroblastic change, although subtle, was high while the percentage going on to epithelial change was often much less, especially when inoculated by the intradermal route. The Feulgen technique did not reveal intranuclear or cytoplasmic bodies of any kind.
Collapse
Affiliation(s)
- N. F. Cheville
- From the Department of Veterinary Science, University of Wisconsin, Madison
| | - C. Olson
- From the Department of Veterinary Science, University of Wisconsin, Madison
| |
Collapse
|
12
|
Wang C, Arriaga Y, Karri S, Verma U, Beg M, Olson C, Anandam J, Abdelnaby A, Balch G, Meyer J. Routine Use of Concurrent Radiation Therapy and Chemotherapy in HIV-Positive Patients With Squamous Cell Anal Cancer: Toxicity and Local Control Outcomes. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.905] [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: 10/22/2022]
|
13
|
Olson C, Miller LD, Miller JM. Role of C-type virus in bovine lymphosarcoma. Bibl Haematol 2015; 39:198-205. [PMID: 4360155 DOI: 10.1159/000427842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
14
|
|
15
|
|
16
|
Smith AD, Olson C, Lyons B, Tran D, Blackburn DF. Adherence to abiraterone among the first 86 recipients after release in Saskatchewan. ACTA ACUST UNITED AC 2015; 22:64-7. [PMID: 25684990 DOI: 10.3747/co.22.2219] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Metastatic castration-resistant prostate cancer is now commonly treated with abiraterone, an orally administered chronic medication. Although abiraterone has certain advantages over docetaxel-based therapy, patients are now responsible for ensuring optimal adherence to their medication. To our knowledge, adherence to abiraterone in a real-world setting has never been described. The objective of the present study was to measure adherence to abiraterone among the first patients to receive the drug in Saskatchewan. Electronic pharmacy claims were obtained from the Saskatchewan Cancer Agency after removal of patient names and identifiers. All patients with at least 1 dispensation for abiraterone between August 2011 and October 2013 were eligible. The primary endpoint was the percentage of patients achieving optimal adherence at 6 months, defined as a medication possession ratio (mpr) of 80% or better. During the study period, 141 patients received abiraterone, among whom 86 could be followed for at least 6 months. Optimal adherence was achieved in 82.6% of patients (71 of 86) at 6 months, with 79.1% achieving a mpr of at least 90%. Of patients with available follow-up to 1 year, 81.6% (31 of 38) maintained optimal adherence during the entire period.
Collapse
Affiliation(s)
- A D Smith
- The Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON
| | - C Olson
- Saskatoon Cancer Centre, Saskatoon, SK
| | - B Lyons
- Saskatoon Cancer Centre, Saskatoon, SK
| | - D Tran
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK
| | - D F Blackburn
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK
| |
Collapse
|
17
|
Qi H, Olson C, Wu N, Du Y, Sun R. Determining the Relative Fitness Score of Mutant Viruses in a Population Using Illumina Paired-end Sequencing and Regression Analysis. Bio Protoc 2015. [DOI: 10.21769/bioprotoc.1475] [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: 11/02/2022] Open
|
18
|
Olson C, Uribe F, Kalajzic Z, Utreja A, Nanda R, Rowe D, Wadhwa S. Orthodontic tooth movement causes decreased promoter expression of collagen type 1, bone sialoprotein and alpha-smooth muscle actin in the periodontal ligament. Orthod Craniofac Res 2012; 15:52-61. [PMID: 22264327 DOI: 10.1111/j.1601-6343.2011.01536.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
OBJECTIVE To evaluate the effects of orthodontic tooth movement on the promoter expression of collagen type 1 (3.6Col1), bone sialoprotein (BSP) and alpha-smooth muscle actin (αSMA) in the periodontal ligament (PDL) using transgenic mice containing transgenes of these promoters fused to green fluorescent proteins (GFP). MATERIALS AND METHODS The maxillary first molars of 10-12 week-old transgenic mice were loaded with 10-12 g of force for 12, 48 h, or 7 days. Mice were transgenic for one of the following GFP-tagged bone markers of osteoblast lineage cells: 3.6-kb fragment of the rat collagen type 1 promoter (3.6Col1), BSP or α-smooth muscle actin (αSMA). Loaded molars under compression and tension were compared with contra-lateral unloaded controls. RESULTS On the compression side of the PDL, orthodontic tooth movement caused a significant decrease in GFP expression of all the promoters at each time point. On the tension side, there was a significant increase in BSP-GFP expression, 12 h following loading compared to the contralateral unloaded controls. CONCLUSIONS An in vivo tooth movement model using transgenic mice with promoter-GFP constructs provides an efficient and effective way of investigating the cellular events underlying orthodontic tooth movement. PDL cells may undergo decreased differentiation in response to the compressive force.
Collapse
|
19
|
Sodha SV, Lynch M, Wannemuehler K, Leeper M, Malavet M, Schaffzin J, Chen T, Langer A, Glenshaw M, Hoefer D, Dumas N, Lind L, Iwamoto M, Ayers T, Nguyen T, Biggerstaff M, Olson C, Sheth A, Braden C. Multistate outbreak of Escherichia coli O157:H7 infections associated with a national fast-food chain, 2006: a study incorporating epidemiological and food source traceback results. Epidemiol Infect 2011; 139:309-16. [PMID: 20429971 DOI: 10.1017/s0950268810000920] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [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: 11/06/2022] Open
Abstract
A multistate outbreak of Escherichia coli O157:H7 infections occurred in the USA in November-December 2006 in patrons of restaurant chain A. We identified 77 cases with chain A exposure in four states - Delaware, New Jersey, New York, and Pennsylvania. Fifty-one (66%) patients were hospitalized, and seven (9%) developed haemolytic uraemic syndrome; none died. In a matched analysis controlling for age in 31 cases and 55 controls, illness was associated with consumption of shredded iceberg lettuce [matched odds ratio (mOR) 8·0, 95% confidence interval (CI) 1·1-348·1] and shredded cheddar cheese (mOR 6·2, CI 1·7-33·7). Lettuce, an uncooked ingredient, was more commonly consumed (97% of patients) than cheddar cheese (84%) and a single source supplied all affected restaurants. A single source of cheese could not explain the regional distribution of outbreak cases. The outbreak highlights challenges in conducting rapid multistate investigations and the importance of incorporating epidemiological study results with other investigative findings.
Collapse
Affiliation(s)
- S V Sodha
- Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Baumgartener LE, Crowley J, Entine S, Olson C, Hugoson G, Hansen HJ, Dreher WH. Influence of sire on BVL infection in progeny. Zentralbl Veterinarmed B 2010; 25:202-10. [PMID: 580670 DOI: 10.1111/j.1439-0450.1978.tb01177.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
21
|
Olson C, Landsberger S, Braisted J. Neutron activation analysis of aerosolized sodium chloride to simulate size-fractionation of plutonium in a glovebox. J Radioanal Nucl Chem 2007. [DOI: 10.1007/s10967-007-0425-5] [Citation(s) in RCA: 1] [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]
|
22
|
Ciolofan C, Li XB, Olson C, Kamasawa N, Gebhardt BR, Yasumura T, Morita M, Rash JE, Nagy JI. Association of connexin36 and zonula occludens-1 with zonula occludens-2 and the transcription factor zonula occludens-1-associated nucleic acid-binding protein at neuronal gap junctions in rodent retina. Neuroscience 2006; 140:433-51. [PMID: 16650609 PMCID: PMC1819557 DOI: 10.1016/j.neuroscience.2006.02.032] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2005] [Revised: 01/21/2006] [Accepted: 02/08/2006] [Indexed: 11/16/2022]
Abstract
Most gap junctions between neurons in mammalian retina contain abundant connexin36, often in association with the scaffolding protein zonula occludens-1. We now investigate co-association of connexin36, zonula occludens-1, zonula occludens-2 and Y-box transcription factor 3 (zonula occludens-1-associated nucleic acid-binding protein) in mouse and rat retina. By immunoblotting, zonula occludens-1-associated nucleic acid-binding protein and zonula occludens-2 were both detected in retina, and zonula occludens-2 in retina was found to co-immunoprecipitate with connexin36. By immunofluorescence, the four proteins appeared as puncta distributed in the plexiform layers. In the inner plexiform layer, most connexin36-puncta were co-localized with zonula occludens-1, and many were co-localized with zonula occludens-1-associated nucleic acid-binding protein. Moreover, zonula occludens-1-associated nucleic acid-binding protein was often co-localized with zonula occludens-1. Nearly all zonula occludens-2-puncta were positive for connexin36, zonula occludens-1 and zonula occludens-1-associated nucleic acid-binding protein. In the outer plexiform layer, connexin36 was also often co-localized with zonula occludens-1-associated nucleic acid-binding protein. In connexin36 knockout mice, labeling of zonula occludens-1 was slightly reduced in the inner plexiform layer, zonula occludens-1-associated nucleic acid-binding protein was decreased in the outer plexiform layer, and both zonula occludens-1-associated nucleic acid-binding protein and zonula occludens-2 were markedly decreased in the inner sublamina of the inner plexiform layer, whereas zonula occludens-1, zonula occludens-2 and zonula occludens-1-associated nucleic acid-binding protein puncta persisted and remained co-localized in the outer sublamina of the inner plexiform layer. By freeze-fracture replica immunogold labeling, connexin36 was found to be co-localized with zonula occludens-2 within individual neuronal gap junctions. In addition, zonula occludens-1-associated nucleic acid-binding protein was abundant in a portion of ultrastructurally-defined gap junctions throughout the inner plexiform layer, and some of these junctions contained both connexin36 and zonula occludens-1-associated nucleic acid-binding protein. These distinct patterns of connexin36 association with zonula occludens-1, zonula occludens-2 and zonula occludens-1-associated nucleic acid-binding protein in different sublaminae of retina, and differential responses of these proteins to connexin36 gene deletion suggest differential regulatory and scaffolding roles of these gap junction accessory proteins. Further, the persistence of a subpopulation of zonula occludens-1/zonula occludens-2/zonula occludens-1-associated nucleic acid-binding protein co-localized puncta in the outer part of the inner plexiform layer of connexin36 knockout mice suggests close association of these proteins with other structures in retina, possibly including gap junctions composed of an as-yet-unidentified connexin.
Collapse
Affiliation(s)
- C Ciolofan
- Department of Physiology, Faculty of Medicine, University of Manitoba, 730 William Avenue, Winnipeg, Manitoba, Canada R3E 3J7
| | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Raffray AR, Meier W, Abdel-Khalik S, Bonazza R, Calderoni P, Debonnel CS, Dragojlovic Z, El-Guebaly L, Haynes D, Latkowski J, Olson C, Peterson PF, Reyes S, Sharpe P, Tillack MS, Zaghloul M. IFE Thick Liquid Wall Chamber Dynamics: Governing Mechanisms and Modeling and Experimental Capabilities. Fusion Science and Technology 2006. [DOI: 10.13182/fst06-a1082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- A. R. Raffray
- University of California, San Diego, Mechanical and Aerospace Engineering Department, and Center for Energy Research, 458 EBU-II, La Jolla, California 92093-0438
| | - W. Meier
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - S. Abdel-Khalik
- Georgia Institute of Technology, School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - R. Bonazza
- University of Wisconsin, 1500 Engineering Drive, Madison, Wisconsin 53706-1687
| | - P. Calderoni
- University of California, Los Angeles, Los Angeles, California
| | - C. S. Debonnel
- University of California, Berkeley, Department of Nuclear Engineering, Berkeley, California 94720-1730
| | - Z. Dragojlovic
- University of California, San Diego, Center for Energy Research, La Jolla, California 92093-0417
| | - L. El-Guebaly
- University of Wisconsin, 1500 Engineering Drive, Madison, Wisconsin 53706-1687
| | - D. Haynes
- University of Wisconsin, 1500 Engineering Drive, Madison, Wisconsin 53706-1687
| | - J. Latkowski
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - C. Olson
- Sandia National Laboratories, Albuquerque, New Mexico 87185
| | - P. F. Peterson
- University of California, Berkeley, Department of Nuclear Engineering, Berkeley, California 94720-1730
| | - S. Reyes
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - P. Sharpe
- Idaho National Engineering and Environmental Laboratory, Fusion Safety Program, EROB E-3 MS 3815, Idaho Falls, Idaho 83415-3815
| | - M. S. Tillack
- University of California, San Diego, Center for Energy Research, La Jolla, California 92093-0417
| | - M. Zaghloul
- United Arab Emirates University, College of Sciences, Department of Physics, P.O.B. 17551, Al-Ain, United Arab Emirates
| |
Collapse
|
24
|
Nichols JM, Seaver M, Trickey ST, Todd MD, Olson C, Overbey L. Detecting nonlinearity in structural systems using the transfer entropy. Phys Rev E Stat Nonlin Soft Matter Phys 2005; 72:046217. [PMID: 16383522 DOI: 10.1103/physreve.72.046217] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2005] [Indexed: 05/05/2023]
Abstract
The transfer entropy was recently proposed as a means of exploring coupling in dynamical systems. Transfer entropy is an information theoretic that quantifies the degree to which one dynamical process affects the transition probabilities (dynamics) of another. Here we demonstrate how this metric may be utilized to detect the presence of nonlinearity in a system. Using the method of surrogate data, the transfer entropy computed at various lag times are compared to values computed from linearized surrogates. The transfer entropy is shown to be a more sensitive indicator of nonlinearity than is the mutual information for both simulated and experimental data. This technique is particularly applicable to the field of structural health monitoring, where damage is often equated with the presence of a nonlinearity in an otherwise linear system.
Collapse
Affiliation(s)
- J M Nichols
- US Naval Research Laboratory, Code 5673, Washington, DC 20375, USA.
| | | | | | | | | | | |
Collapse
|
25
|
Rash JE, Pereda A, Kamasawa N, Furman CS, Yasumura T, Davidson KGV, Dudek FE, Olson C, Li X, Nagy JI. High-resolution proteomic mapping in the vertebrate central nervous system: close proximity of connexin35 to NMDA glutamate receptor clusters and co-localization of connexin36 with immunoreactivity for zonula occludens protein-1 (ZO-1). J Neurocytol 2004; 33:131-51. [PMID: 15173637 PMCID: PMC1892218 DOI: 10.1023/b:neur.0000029653.34094.0b] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Combined confocal microscopy and freeze-fracture replica immunogold labeling (FRIL) were used to examine the connexin identity at electrical synapses in goldfish brain and rat retina, and to test for "co-localization" vs. "close proximity" of connexins to other functionally interacting proteins in synapses of goldfish and mouse brain and rat retina. In goldfish brain, confocal microscopy revealed immunofluorescence for connexin35 (Cx35) and NMDA-R1 (NR1) glutamate receptor protein in Mauthner Cell/Club Ending synapses. By FRIL double labeling, NR1 glutamate receptors were found in clusters of intramembrane particles in the postsynaptic membrane extraplasmic leaflets, and these distinctive postsynaptic densities were in close proximity (0.1-0.3 microm) to neuronal gap junctions labeled for Cx35, which is the fish ortholog of connexin36 (Cx36) found at neuronal gap junctions in mammals. Immunogold labeling for Cx36 in adult rat retina revealed abundant gap junctions, including several previously unrecognized morphological types. As in goldfish hindbrain, immunogold double labeling revealed NR1-containing postsynaptic densities localized near Cx36-labeled gap junction in rat inferior olive. Confocal immunofluorescence microscopy revealed widespread co-localization of Cx36 and ZO-1, particularly in the reticular thalamic nucleus and amygdala of mouse brain. By FRIL, ZO-1 immunoreactivity was co-localized with Cx36 at individual gap junction plaques in rat retinal neurons. As cytoplasmic accessory proteins, ZO-1 and possibly related members of the membrane-associated guanylate kinase (MAGUK) family represent scaffolding proteins that may bind to and regulate the activity of many neuronal gap junctions. These data document the power of combining immunofluorescence confocal microscopy with FRIL ultrastructural imaging and immunogold labeling to determine the relative proximities of proteins that are involved in short- vs. intermediate-range molecular interactions in the complex membrane appositions at synapses between neurons.
Collapse
Affiliation(s)
- J E Rash
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Abstract
ABSTRACT Nutrition education has the potential to play an important role in ensuring food security and improving nutritional status. Therefore, food security is recommended for inclusion in nutrition education evaluation efforts. Considerable progress has been made in developing brief tools that can be used to measure food security at the household level. These tools are reliable in population-based surveys, and some studies have found that measures of food security are associated with nutrient intake. Hence, these tools can be valuable in monitoring, in community needs assessment, and in planning. These tools may also have the potential for use in evaluating nutrition education activities; this potential will be enhanced by research into the capacity of these tools to identify changes within households over time as a result of nutrition education and their sensitivity and reliability in doing so.
Collapse
Affiliation(s)
- D P Keenan
- Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08854, USA.
| | | | | | | |
Collapse
|
27
|
Li X, Lynn BD, Olson C, Meier C, Davidson KGV, Yasumura T, Rash JE, Nagy JI. Connexin29 expression, immunocytochemistry and freeze-fracture replica immunogold labelling (FRIL) in sciatic nerve. Eur J Neurosci 2002; 16:795-806. [PMID: 12372015 PMCID: PMC1803218 DOI: 10.1046/j.1460-9568.2002.02149.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The recently discovered connexin29 (Cx29) was reported to be present in the central and peripheral nervous systems (CNS and PNS), and its mRNA was found in particular abundance in peripheral nerve. The expression and localization of Cx29 protein in sciatic nerve were investigated using an antibody against Cx29. The antibody recognized Cx29 in HeLa cells transfected with Cx29 cDNA, while nontransfected HeLa cells were devoid of Cx29. Immunoblotting of sciatic nerve homogenate revealed monomeric and possibly higher molecular weight forms of Cx29. These were distinguished from connexin32 (Cx32), which also is expressed in peripheral nerve. Double immunofluorescence labelling for Cx29 and Cx32 revealed only partial colocalization of the two connexins, with codistribution at intermittent, conical-shaped striations along nerve fibers. By freeze-fracture replica immunogold labelling (FRIL), Cx32 was found in gap junctions in the outermost layers of myelin, whereas Cx29-immunogold labelling was found only in the innermost layer of myelin in close association with hexagonally arranged intramembrane particle (IMP) 'rosettes' and gap junction-like clusters of IMPs. Although both Cx32 and Cx29 were detected in myelin of normal mice, only Cx29 was present in Schwann cell membranes in Cx32 knockout mice. The results confirm that Cx29 is a second connexin expressed in Schwann cells of sciatic nerve. In addition, Cx29 is present in distinctive IMP arrays in the inner most layer of myelin, adjacent to internodal axonal plasma membranes, where this connexin may have previously unrecognized functions.
Collapse
Affiliation(s)
- Xinbo Li
- Department of Physiology, Faculty of Medicine, University of Manitoba, 730 William Avenue, Winnipeg, Manitoba, Canada R3E 3J7
| | - B. D. Lynn
- Department of Physiology, Faculty of Medicine, University of Manitoba, 730 William Avenue, Winnipeg, Manitoba, Canada R3E 3J7
| | - C. Olson
- Department of Physiology, Faculty of Medicine, University of Manitoba, 730 William Avenue, Winnipeg, Manitoba, Canada R3E 3J7
| | - C. Meier
- Department of Neuroanatomy and Molecular Brain Research, Ruhr-University Bochum, Universitaetsstrasse 150, D-44780 Bochum, Germany
| | - K. G. V. Davidson
- Department of Anatomy and Neurobiology and Program in Molecular, Cellular and Integrative Neurosciences, Colorado State University, Fort Collins, CO 80523, USA
| | - T. Yasumura
- Department of Anatomy and Neurobiology and Program in Molecular, Cellular and Integrative Neurosciences, Colorado State University, Fort Collins, CO 80523, USA
| | - J. E. Rash
- Department of Anatomy and Neurobiology and Program in Molecular, Cellular and Integrative Neurosciences, Colorado State University, Fort Collins, CO 80523, USA
| | - J. I. Nagy
- Department of Physiology, Faculty of Medicine, University of Manitoba, 730 William Avenue, Winnipeg, Manitoba, Canada R3E 3J7
| |
Collapse
|
28
|
|
29
|
Affiliation(s)
- J H Rundback
- Departments of Radiology and Surgery, Westchester Medical Center, New York Medical College, Valhalla, New York, USA
| | | | | | | | | | | |
Collapse
|
30
|
Cheung TW, Jayaweera DT, Pearce D, Benson P, Nahass R, Olson C, Wool GM. Safety of oral versus intravenous hydration during induction therapy with intravenous foscarnet in AIDS patients with cytomegalovirus infections. Int J STD AIDS 2000; 11:640-7. [PMID: 11057934 DOI: 10.1258/0956462001914995] [Citation(s) in RCA: 6] [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] [Indexed: 11/18/2022]
Abstract
We undertook a study to compare the safety of intravenous (i.v.) versus oral hydration to prevent nephrotoxicity associated with the use of foscarnet for induction therapy of cytomegalovirus (CMV) infection in HIV-infected persons. Patients, given foscarnet at a dose of 90 mg/kg every 12 h, were randomized to receive either i.v. or oral hydration. Thirty-seven patients were given i.v. hydration and 44 were given oral hydration. Median duration of therapy for both groups was 17 days. There was no difference between the 2 groups in either serious adverse events or rise of creatinine to > or = 2.0 mg/dl. However, serum creatinine, while generally remained within normal limits, increased more in patients who received oral hydration after 10 days of therapy (significant only by slope analysis, P < 0.05). Although i.v. hydration provided better protection against nephrotoxicity, oral hydration was relatively safe and convenient provided that creatinine clearance (CrCl) is monitored closely.
Collapse
Affiliation(s)
- T W Cheung
- Mount Sinai Medical Center, New York, USA.
| | | | | | | | | | | | | |
Collapse
|
31
|
Rundback JH, Rizvi A, Rozenblit GN, Poplausky M, Maddineni S, Crea G, Agrawal U, Olson C, Matalon TA. Percutaneous stent-graft management of renal artery aneurysms. J Vasc Interv Radiol 2000; 11:1189-93. [PMID: 11041477 DOI: 10.1016/s1051-0443(07)61362-1] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- J H Rundback
- Division of Vascular and Interventional Radiology, New York Medical College, Westchester Medical Center, Valhalla, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Rundback JH, Rozenblat GN, Poplausky M, Crea G, Maddineni S, Olson C, Agrawal U. Re: jejunal artery angioplasty and coronary stent placement for acute mesenteric ischemia. Cardiovasc Intervent Radiol 2000; 23:410-2. [PMID: 11060377 DOI: 10.1007/s002700010095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
33
|
Schrag SJ, Besser RE, Olson C, Burns JC, Arguin PM, Gimenez-Sanchez F, Stevens VA, Pruckler JM, Fields BS, Belay ED, Ginsberg M, Dowell SF. Lack of association between Kawasaki syndrome and Chlamydia pneumoniae infection: an investigation of a Kawasaki syndrome cluster in San Diego County. Pediatr Infect Dis J 2000; 19:17-22. [PMID: 10643845 DOI: 10.1097/00006454-200001000-00005] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The etiology of Kawasaki syndrome (KS), the leading cause of acquired coronary artery disease in children, is unknown. Recent studies have suggested that Chlamydia pneumoniae, a common respiratory pathogen associated with an increased risk of heart disease, might lead to KS. OBJECTIVE To assess whether KS was associated with an elevated risk of having a current or antecedent infection with C. pneumoniae. METHODS Blood, urine and pharyngeal specimens from KS patients in San Diego County, CA, during a period of high KS incidence were analyzed for evidence of recent C. pneumoniae infection by culture, PCR and serology. Specimens collected from two control groups, family members of KS patients and age-matched children attending outpatient clinics for well child visits, were similarly analyzed. RESULTS Thirteen cases were identified. Forty-five outpatient controls and an average of three family members per patient were enrolled in the study. All specimens tested negative for the presence of C. pneumoniae by PCR and culture except for one blood specimen from the mother of a case-patient. Serologic analysis of patients and a subset of outpatient and family controls revealed no evidence of current C. pneumoniae infection; 4 of 13 adult family controls had IgG titers consistent with past exposure to C. pneumoniae. Case patients were no more likely than outpatient controls to have had a respiratory illness in the preceding 2 months (11 of 13 patients vs. 35 of 45 controls; odds ratio, 1.57; 95% confidence interval, 0.3 to 11.9). CONCLUSIONS We found no evidence that C. pneumoniae infection was associated with KS.
Collapse
Affiliation(s)
- S J Schrag
- Division of Bacterial and Mycotic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Sattler FR, Jaque SV, Schroeder ET, Olson C, Dube MP, Martinez C, Briggs W, Horton R, Azen S. Effects of pharmacological doses of nandrolone decanoate and progressive resistance training in immunodeficient patients infected with human immunodeficiency virus. J Clin Endocrinol Metab 1999; 84:1268-76. [PMID: 10199766 DOI: 10.1210/jcem.84.4.5610] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This nonplacebo-controlled, open label, randomized study was conducted to test the hypotheses that pharmacological doses of nandrolone decanoate would increase lean body tissue, muscle mass, and strength in immunodeficient human immunodeficiency virus-infected men, and that these effects would be enhanced with progressive resistance training (PRT). Thirty human immunodeficiency virus-positive men with fewer than 400 CD4 lymphocytes/mm3 were randomly assigned to receive weekly injections of nandrolone alone or in combination with supervised PRT at 80% of the one-repetition maximum three times weekly for 12 weeks. Total body weight increased significantly in both groups (3.2 +/- 2.7 and 4.0 +/- 2.0 kg, respectively; P < 0.001), with increases due primarily to augmentation of lean tissue. Lean body mass determined by dual energy x-ray absorptiometry increased significantly more in the PRT group (3.9 +/- 2.3 vs. 5.2 +/- 5.7 kg, respectively; P = 0.03). Body cell mass by bioelectrical impedance analysis increased significantly (P < 0.001) in both groups (2.6 +/- 1.0 vs. 2.9 +/- 0.8 kg), but to a similar magnitude (P = NS). Significant increases in cross-sectional area by magnetic resonance imaging of total thigh muscles (1538 +/- 767 and 1480 +/- 532 mm2), quadriceps (705 +/- 365 and 717 +/- 288 mm2), and hamstrings (842 +/- 409 and 771 +/- 295 mm2) occurred with both treatment strategies (P < 0.001 for the three muscle areas); these increases were similar in both groups (P = NS). By the one-repetition method, strength increased in both upper and lower body exercises, with gains ranging from 10.3-31% in the nandrolone group and from 14.4-53.0% in the PRT group (P < 0.006 with one exception). Gains in strength were of significantly greater magnitude in the PRT group (P < or = 0.005 for all comparisons), even after correction for lean body mass. Thus, pharmacological doses of nandrolone decanoate yielded significant gains in total weight, lean body mass, body cell mass, muscle size, and strength. The increases in lean body mass and muscular strength were significantly augmented with PRT.
Collapse
Affiliation(s)
- F R Sattler
- Department of Medicine, University of Southern California School of Medicine, Los Angeles County-University of Southern California Medical Center, Los Angeles 90033, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Abstract
We studied retrospectively a consecutive series of 547 shoulders in 529 patients undergoing operation for instability. In 41, the cause of instability was considered to be lateral avulsion of the capsule, including the inferior glenohumeral ligament, from the neck of the humerus, the HAGL lesion. In 35, the lesion was found at first exploration, whereas in six it was noted at revision of a previous failed procedure. In both groups, the patients were older on average than those with instability from other causes. Of the primary cases, in 33 (94.3%) the cause of the first dislocation was a violent injury; six (17.4%) had evidence of damage to the rotator cuff and/or the subscapularis. Only four (11.4%) had a Bankart lesion. In patients undergoing a primary operation in whom the cause of the first dislocation was a violent injury, who did not have a Bankart lesion and had no suggestion of multidirectional laxity, the incidence of HAGL was 39%.
Collapse
Affiliation(s)
- D. J. Bokor
- Western Sydney Orthopaedic Associates, 116 Macquarie Street, Parra-matta, New South Wales 2150, Australia
| | - V. B. Conboy
- Torbay Hospital, Lawes Bridge, Torquay TQ2 7AA, UK
| | - C. Olson
- Quincy Medical Group, 4916 Highway 24 East, Quincy, Illinois 62310-9517, USA
| |
Collapse
|
36
|
Bokor DJ, Conboy VB, Olson C. Anterior instability of the glenohumeral joint with humeral avulsion of the glenohumeral ligament. A review of 41 cases. J Bone Joint Surg Br 1999; 81:93-6. [PMID: 10068012 DOI: 10.1302/0301-620x.81b1.9111] [Citation(s) in RCA: 111] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We studied retrospectively a consecutive series of 547 shoulders in 529 patients undergoing operation for instability. In 41, the cause of instability was considered to be lateral avulsion of the capsule, including the inferior glenohumeral ligament, from the neck of the humerus, the HAGL lesion. In 35, the lesion was found at first exploration, whereas in six it was noted at revision of a previous failed procedure. In both groups, the patients were older on average than those with instability from other causes. Of the primary cases, in 33 (94.3%) the cause of the first dislocation was a violent injury; six (17.4%) had evidence of damage to the rotator cuff and/or the subscapularis. Only four (11.4%) had a Bankart lesion. In patients undergoing a primary operation in whom the cause of the first dislocation was a violent injury, who did not have a Bankart lesion and had no suggestion of multidirectional laxity, the incidence of HAGL was 39%.
Collapse
Affiliation(s)
- D J Bokor
- Western Sydney Orthopaedic Associates, Parramatta, Australia
| | | | | |
Collapse
|
37
|
Abstract
BACKGROUND Collective opinions of practicing general surgeons on the current state of general surgical resident education are unknown. METHODS A 26-item survey was mailed to practicing general surgeons in Minnesota and Texas. Average scores on 17 Likert-formatted questions and opinions on multiple-choice questions were compared by geographic area and academic affiliation. RESULTS Overall response was 954 of 1,745 (55%). All surgeons felt changes were needed in surgical education. There was agreement by geographic area and academic affiliation that the current system of resident education allows chief residents to graduate with significant gaps in their education, and that the responsibility for correcting these gaps lies with the residency program. CONCLUSIONS Opinions of general surgeons in two geographic areas and of differing academic affiliation regarding surgical education showed marked similarity. These data suggest change in the process of surgical education is the responsibility of the residency program and should be a priority for the profession.
Collapse
Affiliation(s)
- J Weigelt
- Department of Surgery, University of Minnesota, Regions Hospital, St. Paul 55101, USA
| | | | | | | |
Collapse
|
38
|
Olson C. Emergency treatment of paraphimosis. Can Fam Physician 1998; 44:1253-4. [PMID: 9640518 PMCID: PMC2278254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
39
|
Olson C. Worried about health of health care. Can Nurse 1998; 94:10. [PMID: 9633315] [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: 02/07/2023]
|
40
|
Murray KJ, Scott C, Greenberg HM, Emami B, Seider M, Vora NL, Olson C, Whitton A, Movsas B, Curran W. A randomized phase III study of accelerated hyperfractionation versus standard in patients with unresected brain metastases: a report of the Radiation Therapy Oncology Group (RTOG) 9104. Int J Radiat Oncol Biol Phys 1997; 39:571-4. [PMID: 9336134 DOI: 10.1016/s0360-3016(97)00341-6] [Citation(s) in RCA: 250] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
PURPOSE To compare 1-year survival and acute toxicity rates between an accelerated hyperfractionated (AH) radiotherapy (1.6 Gy b.i.d.) to a total dose of 54.4 Gy vs. an accelerated fractionation (AF) of 30 Gy in 10 daily fractions in patients with unresected brain metastasis. METHODS AND MATERIALS The Radiation Therapy Oncology Group (RTOG) accrued 445 patients to a Phase III comparison of accelerated hyperfractionation vs. standard fractionation from 1991 through 1995. All patients had histologic proof of malignancy at the primary site. Brain metastasis were measurable by CT or MRI scan and all patients had a Karnofsky performance score (KPS) of at least 70 and a neurologic function classification of 1 or 2. For AH, 32 Gy in 20 fractions over 10 treatment days (1.6 Gy twice daily) was delivered to the whole brain. A boost of 22.4 Gy in 14 fractions was delivered to each lesion with a 2-cm margin. RESULTS The average age in both groups was 60 years; nearly two-thirds of all patients had lung primaries. Of the 429 eligible and analyzable patients, the median survival time was 4.5 months in both arms. The 1-year survival rate was 19% in the AF arm vs. 16% in the AH arm. No difference in median or 1-year survival was observed among patients with solitary metastasis between treatment arms. Recursive partitioning analysis (RPA) classes have previously been identified and patients with a KPS of 70 or more, a controlled primary tumor, less than 65 years of age, and brain metastases only (RPA class I), had a 1-year survival of 35% in the AF arm vs. 25% in the AH arm (p = 0.95). In a multivariate model, only age, KPS, extent of metastatic disease (intracranial metastases only vs. intra- and extracranial metastases), and status of primary (controlled vs. uncontrolled) were statistically significant (at p < 0.05). Treatment assignment was not statistically significant. Overall Grade III or IV toxicity was equivalent in both arms, and one fatal toxicity at 44 days secondary to cerebral edema was seen in the AH arm. CONCLUSION Although a previous RTOG Phase I/II report had suggested a potential benefit in patients with limited metastatic disease, a good Karnofsky performance status, or neurologic function when treated with an AH regimen, this randomized comparison could not demonstrate any improvement in survival when compared to a conventional regimen of 30 Gy in 10 fractions. Therefore, this accelerated hyperfractionated regimen to 54.4 Gy cannot be recommended for patients with intracranial metastatic disease.
Collapse
Affiliation(s)
- K J Murray
- Medical College of Wisconsin, Milwaukee 53226, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Olson C. The Henry Ford Health System corporate data store. J AHIMA 1994; 65:32-4. [PMID: 10134106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
|
42
|
|
43
|
Dey HM, Seibyl JP, Stubbs JB, Zoghbi SS, Baldwin RM, Smith EO, Zubal IG, Zea-Ponce Y, Olson C, Charney DS. Human biodistribution and dosimetry of the SPECT benzodiazepine receptor radioligand iodine-123-iomazenil. J Nucl Med 1994; 35:399-404. [PMID: 8113883] [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] [Indexed: 01/28/2023] Open
Abstract
UNLABELLED SPECT imaging of the brain with [123I]iomazenil has shown avid uptake of the radioligand in a distribution consistent with benzodiazepine receptor binding. The purposes of this study were to measure the whole-body distribution of activity following i.v. administration of [123I]iomazenil and to evaluate the resulting organ radiation burdens. METHODS Serial total body scans were obtained in healthy volunteers after thyroid blockade and demonstrated avid brain uptake of radioligand. RESULTS Abdominal imaging showed significant activity retention within the urinary and gastrointestinal tracts consistent with excretion via these routes. Absorbed dose to the urinary bladder was calculated to be 0.19 mGy/MBq, to the lower large intestine 0.079 mGy/MBq, to the upper large intestine 0.066 mGy/MBq, and to the thyroid 0.063 mGy/MBq. CONCLUSION Thyroid uptake may in part have represented binding to benzodiazepine receptors, since radioligand binding to tissue homogenates prepared from human thyroid showed the presence of benzodiazepine binding sites.
Collapse
Affiliation(s)
- H M Dey
- Department of Diagnostic Radiology, West Haven Veterans Affairs Medical Center, CT 06516
| | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Affiliation(s)
- C W Suitor
- National Center for Education in Maternal and Child Health, Arlington, VA 22201
| | | | | |
Collapse
|
45
|
|
46
|
Abstract
Escherichia coli RNA polymerases containing mutated alpha subunits were tested for their ability to respond to three different positive regulators (activators) in vitro. The two alpha (rpoA) mutants, alpha-256 and alpha-235, have deletions of the C-terminal 73 and 94 amino acids, respectively. In runoff transcription assays catalyzed by reconstituted holoenzyme, the effects of the mutations on each of three promoters tested were different: activation of the lambda pRM promoter by cI protein (repressor) was nearly normal, activation of the lambda pRE promoter by cII protein was reduced approximately fivefold, and direct activation of the trpPB promoter of Pseudomonas aeruginosa was completely inhibited. We also found that the reconstituted mutant enzyme was defective in recognition of trpPI in the absence of activator. The differential responses of the three promoters to their activators in the presence of the mutant enzymes indicate that the location of an activator-binding site does not by itself determine the region of RNA polymerase with which the activator interacts.
Collapse
Affiliation(s)
- G N Gussin
- Biology Department, University of Iowa, Iowa City 52242
| | | | | | | |
Collapse
|
47
|
Olson C, Olson RO, Hubbard-Van Stelle S. Variations of response of cattle to experimentally induced viral papillomatosis. J Am Vet Med Assoc 1992; 201:56-62. [PMID: 1322877] [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] [Indexed: 12/26/2022]
Abstract
The common bovine papilloma virus type 1 has been widely used to stimulate basic research on papilloma viruses involved in some cancers of mankind. The usually benign neoplasms of cattle caused by bovine papilloma viruses are frequent clinical problems for veterinarians. Approximately 240 experimentally induced cutaneous fibropapillomas on 8 susceptible calves had a uniform appearance of initial growth. Their size and duration ranged from about 2 months to nearly 3 years but were similar for the multiple papillomas of each calf. Sequential biopsies were done to examine the histologic changes and existence of viral antigen. Veterinarians in practice may encounter the common fibropapillomas caused by bovine papilloma virus 1 and 2 as well as papillomas with no fibromatous element. These types may develop on teats of cows in some herds. Interdigital papillomas cause a problem in some dairy herds and a virus suspected but not yet found. Prophylactic vaccination with a formalin-killed vaccine will protect against infection with bovine papilloma virus 1 and 2.
Collapse
Affiliation(s)
- C Olson
- Department of Veterinary Science, College of Agricultural and Life Sciences, University of Wisconsin, Madison 53706
| | | | | |
Collapse
|
48
|
|
49
|
Abstract
An evaluation of the impact of a nationwide clinic-based growth monitoring (GM) programme was done in Lesotho to determine if clinic attendance was associated with improved maternal knowledge of weaning practices and diarrhoea. A total of 907 mothers from eight clinics were included in the study. Our results showed that mothers who had attended the clinics knew more about the appropriate timing for introducing animal protein-rich foods in the child's diet and about the use of oral rehydration salts for diarrhoea, than those who had not. The difference in knowledge between previous clinic attendants and new attendants was particularly marked among mothers with less than secondary schooling and mothers with young babies (less than 6 months). From observation in the clinics, we believe that group nutrition education, although it was not integrated with growth monitoring, was probably responsible for the positive association between clinic attendance and maternal knowledge. Prior clinic attendance was not specifically associated with improved knowledge about feeding during diarrhoea or the need to stop breastfeeding gradually. These need to be better incorporated into present clinic nutrition education. Whether improvements in growth monitoring would further significantly improve nutrition education remains to be seen.
Collapse
Affiliation(s)
- M T Ruel
- Institute of Nutrition of Central America and Panama (INCAP), Guatemala
| | | | | |
Collapse
|
50
|
|