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https://www.readbyqxmd.com/read/28095915/development-and-validation-of-seer-seeking-engaging-with-and-evaluating-research-a-measure-of-policymakers-capacity-to-engage-with-and-use-research
#1
Sue E Brennan, Joanne E McKenzie, Tari Turner, Sally Redman, Steve Makkar, Anna Williamson, Abby Haynes, Sally E Green
BACKGROUND: Capacity building strategies are widely used to increase the use of research in policy development. However, a lack of well-validated measures for policy contexts has hampered efforts to identify priorities for capacity building and to evaluate the impact of strategies. We aimed to address this gap by developing SEER (Seeking, Engaging with and Evaluating Research), a self-report measure of individual policymakers' capacity to engage with and use research. METHODS: We used the SPIRIT Action Framework to identify pertinent domains and guide development of items for measuring each domain...
January 17, 2017: Health Research Policy and Systems
https://www.readbyqxmd.com/read/28092643/physical-activity-and-sedentary-time-among-children-with-disabilities-at-school
#2
Cindy H P Sit, Thomas L McKenzie, Ester Cerin, Bik C Chow, Wendy Y Huang, Jie Yu
PURPOSES: Physical activity (PA) is important for the development of children with disabilities, but rarely does this population meet the recommended standards. Schools are salient locations for PA, but little is known about how specific school settings affect the PA of children with diverse disabilities. We assessed PA and sedentary time (ST) of children with disabilities in three school settings (physical education, recess, lunchtime). METHODS: Participants included 259 children from 13 Hong Kong special schools for five primary disabilities: visual impairments, hearing impairments, physical disabilities, intellectual disabilities, and social development problems...
February 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28088845/-%C3%A2-it-shows-that-there-s-no-limits-the-psychological-impact-of-co-production-for-experts-by-experience-working-in-youth-mental-health
#3
Claire Mayer, Karen McKenzie
Co-production is commonly conceptualised as a more equal sharing of power and decision-making between a dichotomy of service user and service provider, each bringing valuable and different assets to the process. 'Experts by experience' lie in the overlap between this conceptually created duality, providing the services they now do by virtue of having once used services themselves. Previous related studies suggest that their involvement in co-production could impact positively on their social capital, self-esteem, self-efficacy and life skills...
January 15, 2017: Health & Social Care in the Community
https://www.readbyqxmd.com/read/28088601/mid-term-outcomes-in-patients-with-congenitally-corrected-transposition-of-the-great-arteries-a-single-center-experience
#4
Luis E De León, Carlos M Mery, Raymond A Verm, Daniel Trujillo-Díaz, Ankita Patro, Francisco A Guzmán-Pruneda, Iki Adachi, Jeffrey S Heinle, Lauren C Kane, E Dean McKenzie, Charles D Fraser
INTRO: The optimal management of patients with congenitally-corrected transposition of the great arteries (ccTGA) is unclear. The goal of this study was to compare the outcomes in patients with ccTGA undergoing different management strategies. METHODS: Patients with ccTGA believed suitable for biventricular circulation treated in 1995-2016 were included. The cohort was divided into four groups: systemic right ventricle (RV) (patients without surgical intervention or with a classic repair), anatomic repair, Fontan palliation, and patients only receiving a pulmonary artery band (PAB) or a shunt...
January 11, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28088194/testing-a-cognitive-model-to-predict-posttraumatic-stress-disorder-following-childbirth
#5
Lydia King, Kirstie McKenzie-McHarg, Antje Horsch
BACKGROUND: One third of women describes their childbirth as traumatic and between 0.8 and 6.9% goes on to develop posttraumatic stress disorder (PTSD). The cognitive model of PTSD has been shown to be applicable to a range of trauma samples. However, childbirth is qualitatively different to other trauma types and special consideration needs to be taken when applying it to this population. Previous studies have investigated some cognitive variables in isolation but no study has so far looked at all the key processes described in the cognitive model...
January 14, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28075038/effect-of-aerobic-exercise-on-cancer-associated-cognitive-impairment-a-proof-of-concept-rct
#6
K L Campbell, J W Y Kam, S E Neil-Sztramko, T Liu Ambrose, T C Handy, H Lim, S Hayden, L Hsu, A A Kirkham, C C Gotay, D C McKenzie, L A Boyd
BACKGROUND: Change in cognitive ability is a commonly reported side effect by breast cancer survivors (BCS). The underlying etiology of cognitive complaints is unclear and to date there is limited evidence for effective intervention strategies. Exercise has been shown to improve cognitive function in older adults and animal models treated with chemotherapy. This proof-of-concept randomized controlled trial (RCT) tested the effect of aerobic exercise versus usual lifestyle on cognitive function in postmenopausal BCS...
January 11, 2017: Psycho-oncology
https://www.readbyqxmd.com/read/28070282/the-database-of-the-predicts-projecting-responses-of-ecological-diversity-in-changing-terrestrial-systems-project
#7
Lawrence N Hudson, Tim Newbold, Sara Contu, Samantha L L Hill, Igor Lysenko, Adriana De Palma, Helen R P Phillips, Tamera I Alhusseini, Felicity E Bedford, Dominic J Bennett, Hollie Booth, Victoria J Burton, Charlotte W T Chng, Argyrios Choimes, David L P Correia, Julie Day, Susy Echeverría-Londoño, Susan R Emerson, Di Gao, Morgan Garon, Michelle L K Harrison, Daniel J Ingram, Martin Jung, Victoria Kemp, Lucinda Kirkpatrick, Callum D Martin, Yuan Pan, Gwilym D Pask-Hale, Edwin L Pynegar, Alexandra N Robinson, Katia Sanchez-Ortiz, Rebecca A Senior, Benno I Simmons, Hannah J White, Hanbin Zhang, Job Aben, Stefan Abrahamczyk, Gilbert B Adum, Virginia Aguilar-Barquero, Marcelo A Aizen, Belén Albertos, E L Alcala, Maria Del Mar Alguacil, Audrey Alignier, Marc Ancrenaz, Alan N Andersen, Enrique Arbeláez-Cortés, Inge Armbrecht, Víctor Arroyo-Rodríguez, Tom Aumann, Jan C Axmacher, Badrul Azhar, Adrián B Azpiroz, Lander Baeten, Adama Bakayoko, András Báldi, John E Banks, Sharad K Baral, Jos Barlow, Barbara I P Barratt, Lurdes Barrico, Paola Bartolommei, Diane M Barton, Yves Basset, Péter Batáry, Adam J Bates, Bruno Baur, Erin M Bayne, Pedro Beja, Suzan Benedick, Åke Berg, Henry Bernard, Nicholas J Berry, Dinesh Bhatt, Jake E Bicknell, Jochen H Bihn, Robin J Blake, Kadiri S Bobo, Roberto Bóçon, Teun Boekhout, Katrin Böhning-Gaese, Kevin J Bonham, Paulo A V Borges, Sérgio H Borges, Céline Boutin, Jérémy Bouyer, Cibele Bragagnolo, Jodi S Brandt, Francis Q Brearley, Isabel Brito, Vicenç Bros, Jörg Brunet, Grzegorz Buczkowski, Christopher M Buddle, Rob Bugter, Erika Buscardo, Jörn Buse, Jimmy Cabra-García, Nilton C Cáceres, Nicolette L Cagle, María Calviño-Cancela, Sydney A Cameron, Eliana M Cancello, Rut Caparrós, Pedro Cardoso, Dan Carpenter, Tiago F Carrijo, Anelena L Carvalho, Camila R Cassano, Helena Castro, Alejandro A Castro-Luna, Cerda B Rolando, Alexis Cerezo, Kim Alan Chapman, Matthieu Chauvat, Morten Christensen, Francis M Clarke, Daniel F R Cleary, Giorgio Colombo, Stuart P Connop, Michael D Craig, Leopoldo Cruz-López, Saul A Cunningham, Biagio D'Aniello, Neil D'Cruze, Pedro Giovâni da Silva, Martin Dallimer, Emmanuel Danquah, Ben Darvill, Jens Dauber, Adrian L V Davis, Jeff Dawson, Claudio de Sassi, Benoit de Thoisy, Olivier Deheuvels, Alain Dejean, Jean-Louis Devineau, Tim Diekötter, Jignasu V Dolia, Erwin Domínguez, Yamileth Dominguez-Haydar, Silvia Dorn, Isabel Draper, Niels Dreber, Bertrand Dumont, Simon G Dures, Mats Dynesius, Lars Edenius, Paul Eggleton, Felix Eigenbrod, Zoltán Elek, Martin H Entling, Karen J Esler, Ricardo F de Lima, Aisyah Faruk, Nina Farwig, Tom M Fayle, Antonio Felicioli, Annika M Felton, Roderick J Fensham, Ignacio C Fernandez, Catarina C Ferreira, Gentile F Ficetola, Cristina Fiera, Bruno K C Filgueiras, Hüseyin K Fırıncıoğlu, David Flaspohler, Andreas Floren, Steven J Fonte, Anne Fournier, Robert E Fowler, Markus Franzén, Lauchlan H Fraser, Gabriella M Fredriksson, Geraldo B Freire, Tiago L M Frizzo, Daisuke Fukuda, Dario Furlani, René Gaigher, Jörg U Ganzhorn, Karla P García, Juan C Garcia-R, Jenni G Garden, Ricardo Garilleti, Bao-Ming Ge, Benoit Gendreau-Berthiaume, Philippa J Gerard, Carla Gheler-Costa, Benjamin Gilbert, Paolo Giordani, Simonetta Giordano, Carly Golodets, Laurens G L Gomes, Rachelle K Gould, Dave Goulson, Aaron D Gove, Laurent Granjon, Ingo Grass, Claudia L Gray, James Grogan, Weibin Gu, Moisès Guardiola, Nihara R Gunawardene, Alvaro G Gutierrez, Doris L Gutiérrez-Lamus, Daniela H Haarmeyer, Mick E Hanley, Thor Hanson, Nor R Hashim, Shombe N Hassan, Richard G Hatfield, Joseph E Hawes, Matt W Hayward, Christian Hébert, Alvin J Helden, John-André Henden, Philipp Henschel, Lionel Hernández, James P Herrera, Farina Herrmann, Felix Herzog, Diego Higuera-Diaz, Branko Hilje, Hubert Höfer, Anke Hoffmann, Finbarr G Horgan, Elisabeth Hornung, Roland Horváth, Kristoffer Hylander, Paola Isaacs-Cubides, Hiroaki Ishida, Masahiro Ishitani, Carmen T Jacobs, Víctor J Jaramillo, Birgit Jauker, F Jiménez Hernández, McKenzie F Johnson, Virat Jolli, Mats Jonsell, S Nur Juliani, Thomas S Jung, Vena Kapoor, Heike Kappes, Vassiliki Kati, Eric Katovai, Klaus Kellner, Michael Kessler, Kathryn R Kirby, Andrew M Kittle, Mairi E Knight, Eva Knop, Florian Kohler, Matti Koivula, Annette Kolb, Mouhamadou Kone, Ádám Kőrösi, Jochen Krauss, Ajith Kumar, Raman Kumar, David J Kurz, Alex S Kutt, Thibault Lachat, Victoria Lantschner, Francisco Lara, Jesse R Lasky, Steven C Latta, William F Laurance, Patrick Lavelle, Violette Le Féon, Gretchen LeBuhn, Jean-Philippe Légaré, Valérie Lehouck, María V Lencinas, Pia E Lentini, Susan G Letcher, Qi Li, Simon A Litchwark, Nick A Littlewood, Yunhui Liu, Nancy Lo-Man-Hung, Carlos A López-Quintero, Mounir Louhaichi, Gabor L Lövei, Manuel Esteban Lucas-Borja, Victor H Luja, Matthew S Luskin, M Cristina MacSwiney G, Kaoru Maeto, Tibor Magura, Neil Aldrin Mallari, Louise A Malone, Patrick K Malonza, Jagoba Malumbres-Olarte, Salvador Mandujano, Inger E Måren, Erika Marin-Spiotta, Charles J Marsh, E J P Marshall, Eliana Martínez, Guillermo Martínez Pastur, David Moreno Mateos, Margaret M Mayfield, Vicente Mazimpaka, Jennifer L McCarthy, Kyle P McCarthy, Quinn S McFrederick, Sean McNamara, Nagore G Medina, Rafael Medina, Jose L Mena, Estefania Mico, Grzegorz Mikusinski, Jeffrey C Milder, James R Miller, Daniel R Miranda-Esquivel, Melinda L Moir, Carolina L Morales, Mary N Muchane, Muchai Muchane, Sonja Mudri-Stojnic, A Nur Munira, Antonio Muoñz-Alonso, B F Munyekenye, Robin Naidoo, A Naithani, Michiko Nakagawa, Akihiro Nakamura, Yoshihiro Nakashima, Shoji Naoe, Guiomar Nates-Parra, Dario A Navarrete Gutierrez, Luis Navarro-Iriarte, Paul K Ndang'ang'a, Eike L Neuschulz, Jacqueline T Ngai, Violaine Nicolas, Sven G Nilsson, Norbertas Noreika, Olivia Norfolk, Jorge Ari Noriega, David A Norton, Nicole M Nöske, A Justin Nowakowski, Catherine Numa, Niall O'Dea, Patrick J O'Farrell, William Oduro, Sabine Oertli, Caleb Ofori-Boateng, Christopher Omamoke Oke, Vicencio Oostra, Lynne M Osgathorpe, Samuel Eduardo Otavo, Navendu V Page, Juan Paritsis, Alejandro Parra-H, Luke Parry, Guy Pe'er, Peter B Pearman, Nicolás Pelegrin, Raphaël Pélissier, Carlos A Peres, Pablo L Peri, Anna S Persson, Theodora Petanidou, Marcell K Peters, Rohan S Pethiyagoda, Ben Phalan, T Keith Philips, Finn C Pillsbury, Jimmy Pincheira-Ulbrich, Eduardo Pineda, Joan Pino, Jaime Pizarro-Araya, A J Plumptre, Santiago L Poggio, Natalia Politi, Pere Pons, Katja Poveda, Eileen F Power, Steven J Presley, Vânia Proença, Marino Quaranta, Carolina Quintero, Romina Rader, B R Ramesh, Martha P Ramirez-Pinilla, Jai Ranganathan, Claus Rasmussen, Nicola A Redpath-Downing, J Leighton Reid, Yana T Reis, José M Rey Benayas, Juan Carlos Rey-Velasco, Chevonne Reynolds, Danilo Bandini Ribeiro, Miriam H Richards, Barbara A Richardson, Michael J Richardson, Rodrigo Macip Ríos, Richard Robinson, Carolina A Robles, Jörg Römbke, Luz Piedad Romero-Duque, Matthias Rös, Loreta Rosselli, Stephen J Rossiter, Dana S Roth, T'ai H Roulston, Laurent Rousseau, André V Rubio, Jean-Claude Ruel, Jonathan P Sadler, Szabolcs Sáfián, Romeo A Saldaña-Vázquez, Katerina Sam, Ulrika Samnegård, Joana Santana, Xavier Santos, Jade Savage, Nancy A Schellhorn, Menno Schilthuizen, Ute Schmiedel, Christine B Schmitt, Nicole L Schon, Christof Schüepp, Katharina Schumann, Oliver Schweiger, Dawn M Scott, Kenneth A Scott, Jodi L Sedlock, Steven S Seefeldt, Ghazala Shahabuddin, Graeme Shannon, Douglas Sheil, Frederick H Sheldon, Eyal Shochat, Stefan J Siebert, Fernando A B Silva, Javier A Simonetti, Eleanor M Slade, Jo Smith, Allan H Smith-Pardo, Navjot S Sodhi, Eduardo J Somarriba, Ramón A Sosa, Grimaldo Soto Quiroga, Martin-Hugues St-Laurent, Brian M Starzomski, Constanti Stefanescu, Ingolf Steffan-Dewenter, Philip C Stouffer, Jane C Stout, Ayron M Strauch, Matthew J Struebig, Zhimin Su, Marcela Suarez-Rubio, Shinji Sugiura, Keith S Summerville, Yik-Hei Sung, Hari Sutrisno, Jens-Christian Svenning, Tiit Teder, Caragh G Threlfall, Anu Tiitsaar, Jacqui H Todd, Rebecca K Tonietto, Ignasi Torre, Béla Tóthmérész, Teja Tscharntke, Edgar C Turner, Jason M Tylianakis, Marcio Uehara-Prado, Nicolas Urbina-Cardona, Denis Vallan, Adam J Vanbergen, Heraldo L Vasconcelos, Kiril Vassilev, Hans A F Verboven, Maria João Verdasca, José R Verdú, Carlos H Vergara, Pablo M Vergara, Jort Verhulst, Massimiliano Virgilio, Lien Van Vu, Edward M Waite, Tony R Walker, Hua-Feng Wang, Yanping Wang, James I Watling, Britta Weller, Konstans Wells, Catrin Westphal, Edward D Wiafe, Christopher D Williams, Michael R Willig, John C Z Woinarski, Jan H D Wolf, Volkmar Wolters, Ben A Woodcock, Jihua Wu, Joseph M Wunderle, Yuichi Yamaura, Satoko Yoshikura, Douglas W Yu, Andrey S Zaitsev, Juliane Zeidler, Fasheng Zou, Ben Collen, Rob M Ewers, Georgina M Mace, Drew W Purves, Jörn P W Scharlemann, Andy Purvis
The PREDICTS project-Projecting Responses of Ecological Diversity In Changing Terrestrial Systems (www.predicts.org.uk)-has collated from published studies a large, reasonably representative database of comparable samples of biodiversity from multiple sites that differ in the nature or intensity of human impacts relating to land use. We have used this evidence base to develop global and regional statistical models of how local biodiversity responds to these measures. We describe and make freely available this 2016 release of the database, containing more than 3...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28068165/physiological-and-perceived-effects-of-forearm-or-head-cooling-during-simulated-firefighting-activity-and-rehabilitation
#8
Susan Yeargin, Amy L McKenzie, Lindsey E Eberman, J Derek Kingsley, David J Dziedzicki, Patrick Yoder
CONTEXT:  Cooling devices aim to protect firefighters by attenuating a rise in body temperature. Devices for head cooling (HC) while firefighting and forearm cooling (FC) during rehabilitation (RHB) intervals are commonly marketed, but research regarding their efficacy is limited. OBJECTIVE:  To investigate the physiological and perceived effects of HC and FC during firefighting drills and RHB. DESIGN:  Randomized controlled clinical trial...
November 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/28066953/diabetic-and-idiopathic-gastroparesis-is-associated-with-loss-of-cd206-positive-macrophages-in-the-gastric-antrum
#9
M Grover, C E Bernard, P J Pasricha, H P Parkman, S J Gibbons, J Tonascia, K L Koch, R W McCallum, I Sarosiek, W L Hasler, L A B Nguyen, T L Abell, W J Snape, M L Kendrick, T A Kellogg, T J McKenzie, F A Hamilton, G Farrugia
BACKGROUND: Animal studies have increasingly highlighted the role of macrophages in the development of delayed gastric emptying. However, their role in the pathophysiology of human gastroparesis is unclear. Our aim was to determine changes in macrophages and other cell types in the gastric antrum muscularis propria of patients with diabetic and idiopathic gastroparesis. METHODS: Full thickness gastric antrum biopsies were obtained from patients enrolled in the Gastroparesis Clinical Research Consortium (11 diabetic, 6 idiopathic) and 5 controls...
January 9, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28064360/greater-species-richness-of-bacterial-skin-symbionts-better-suppresses-the-amphibian-fungal-pathogen-batrachochytrium-dendrobatidis
#10
Jonah Piovia-Scott, Daniel Rejmanek, Douglas C Woodhams, S Joy Worth, Heather Kenny, Valerie McKenzie, Sharon P Lawler, Janet E Foley
The symbiotic microbes that grow in and on many organisms can play important roles in protecting their hosts from pathogen infection. While species diversity has been shown to influence community function in many other natural systems, the question of how species diversity of host-associated symbiotic microbes contributes to pathogen resistance is just beginning to be explored. Understanding diversity effects on pathogen resistance could be particularly helpful in combating the fungal pathogen Batrachochytrium dendrobatidis (Bd) which has caused dramatic population declines in many amphibian species and is a major concern for amphibian conservation...
January 7, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28058556/surgical-treatment-of-malignant-pheochromocytoma-and-paraganglioma-retrospective-case-series
#11
Veljko Strajina, Benzon M Dy, David R Farley, Melanie L Richards, Travis J McKenzie, Keith C Bible, Florencia G Que, David M Nagorney, William F Young, Geoffrey B Thompson
INTRODUCTION: Pheochromocytoma and paraganglioma (PPGL) are rare neoplasms; about 10% are malignant. Literature regarding possible benefit from resection is extremely limited. METHODS: A 20 year review of all patients undergoing surgery for malignant PPGL at the Mayo Clinic Rochester Campus between 1994 and June 2014 was performed. RESULTS: We identified 34 patients undergoing surgery for malignant PPGL. Median follow up was 6 and 5 years survival was 90% (median 11 years)...
January 5, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28057720/elevated-striatal-dopamine-function-in-immigrants-and-their-children-a-risk-mechanism-for-psychosis
#12
Alice Egerton, Oliver D Howes, Sylvain Houle, Kwame McKenzie, Lucia R Valmaggia, Michael R Bagby, Huai-Hsuan Tseng, Michael A P Bloomfield, Miran Kenk, Sagnik Bhattacharyya, Ivonne Suridjan, Chistopher A Chaddock, Toby T Winton-Brown, Paul Allen, Pablo Rusjan, Gary Remington, Andreas Meyer-Lindenberg, Philip K McGuire, Romina Mizrahi
Migration is a major risk factor for schizophrenia but the neurochemical processes involved are unknown. One candidate mechanism is through elevations in striatal dopamine synthesis and release. The objective of this research was to determine whether striatal dopamine function is elevated in immigrants compared to nonimmigrants and the relationship with psychosis. Two complementary case-control studies of in vivo dopamine function (stress-induced dopamine release and dopamine synthesis capacity) in immigrants compared to nonimmigrants were performed in Canada and the United Kingdom...
January 5, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28050021/systematic-active-surveillance-for-middle-east-respiratory-syndrome-coronavirus-in-camels-in-egypt
#13
Mohamed A Ali, Mahmoud M Shehata, Mokhtar R Gomaa, Ahmed Kandeil, Rabeh El-Shesheny, Ahmed S Kayed, Ahmed N El-Taweel, Mohamed Atea, Nagla Hassan, Ola Bagato, Yassmin Moatasim, Sara H Mahmoud, Omnia Kutkat, Asmaa M Maatouq, Ahmed Osman, Pamela P McKenzie, Richard J Webby, Ghazi Kayali
Middle East respiratory syndrome coronavirus (MERS-CoV) causes severe human infections and dromedary camels are considered an intermediary host. The dynamics of natural infection in camels are not well understood. Through systematic surveillance in Egypt, nasal, rectal, milk, urine and serum samples were collected from camels between June 2014 and February 2016. Locations included quarantines, markets, abattoirs, free-roaming herds and farmed breeding herds. The overall seroprevalence was 71% and RNA detection rate was 15%...
January 4, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28048335/su-g-tep3-13-the-role-of-nanoscale-energy-deposition-in-the-development-of-gold-nanoparticle-enhanced-radiotherapy
#14
C Kirkby, B Koger, N Suchowerska, D McKenzie
PURPOSE: Gold nanoparticles (GNPs) can enhance radiotherapy effects. The high photoelectric cross section of gold relative to tissue, particularly at lower energies, leads to localized dose enhancement. However in a clinical context, photon energies must also be sufficient to reach a target volume at a given depth. These properties must be balanced to optimize such a therapy. Given that nanoscale energy deposition patterns around GNPs play a role in determining biological outcomes, in this work we seek to establish their role in this optimization process...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046726/su-g-brb-03-assessing-the-sensitivity-and-false-positive-rate-of-the-integrated-quality-monitor-iqm-large-area-ion-chamber-to-mlc-positioning-errors
#15
E McKenzie Boehnke, J DeMarco, J Steers, B Fraass
PURPOSE: To examine both the IQM's sensitivity and false positive rate to varying MLC errors. By balancing these two characteristics, an optimal tolerance value can be derived. METHODS: An un-modified SBRT Liver IMRT plan containing 7 fields was randomly selected as a representative clinical case. The active MLC positions for all fields were perturbed randomly from a square distribution of varying width (±1mm to ±5mm). These unmodified and modified plans were measured multiple times each by the IQM (a large area ion chamber mounted to a TrueBeam linac head)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046389/su-f-t-476-performance-of-the-as1200-epid-for-periodic-photon-quality-assurance
#16
J DeMarco, J Moran, M Barnes, P Greer, G Kim, B Fraass, W Yang, E McKenzie Boehnke
PURPOSE: To assess the dosimetric performance of a new amorphous silicon flat-panel electronic portal imaging device (EPID) suitable for high-intensity, flattening-filter-free delivery mode. METHODS: An EPID-based QA suite was created with automation to periodically monitor photon central-axis output and two-dimensional beam profile constancy as a function of gantry angle and dose-rate. A Varian TrueBeamTM linear accelerator installed with Developer Mode was used to customize and deliver XML script routines for the QA suite using the dosimetry mode image acquisition for an aS1200 EPID...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28044041/visual-diagnosis-a-child-with-presumed-reactive-airway-disease-pectus-carinatum-and-aortic-root-dilation
#17
REVIEW
Aamir Jeewa, Shaine A Morris, William J Dreyer, Iki Adachi, Susan W Denfield, E Dean McKenzie
No abstract text is available yet for this article.
January 2017: Pediatrics in Review
https://www.readbyqxmd.com/read/28043316/treatment-of-shoulder-dislocation-with-greater-tuberosity-and-glenoid-fractures
#18
Shah Jehan, Najeeb Mohammad Akhi Baig, Jacob Der Tavitian
Large glenoid fractures are relatively uncommon with shoulder dislocation. Simultaneous glenoid and greater tuberosity fractures with anterior shoulder dislocation are very rare. We report on a 48-year right-handed male who sustained a fall during skiing. He had anterior shoulder dislocation combined with large glenoid fracture and greater tuberosity fracture. He was treated surgically with fixation of the glenoid and greater tuberosity fractures, using two different approaches. The deltopectoral approach with coracoid osteotomy and subscapularis split was used for glenoid fixation...
December 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28042894/gaining-synthetic-appreciation-for-the-gedunin-abc-ring-system
#19
Craig McKenzie Williams, David Pinkerton, Timothy Vanden Berg, Paul Bernhardt
Gedunin, first isolated in 1960, displays a remarkable range of biological activity, but has yet to receive dedicated synthetic attention from a ground up construction perspective. Presented herein is a successfully executed approach to the fully-functionalized ABC ring system of this challengingly complex natural product.
January 2, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28039108/supporting-human-rights-one-patient-at-a-time
#20
Katherine McKenzie
No abstract text is available yet for this article.
December 30, 2016: BMJ: British Medical Journal
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