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991.
We investigated the relationship between the changes in the pulmonary blood flow and histology during acute rejection following single lung transplantation. In single lung transplantation using adult mongrel dogs, immunosuppression with cyclosporine and azathioprine was discontinued after postoperative day 14 to induce rejection. Doppler flow probes were placed adjacent to the ascending aorta and the left pulmonary artery to measure the blood flow on a daily basis. In addition, chest roentgenograms were also examined daily. The pulmonary pressure was measured using a Swan-Ganz catheter prior to and following the induction of rejection. Open lung biopsies were performed when the left pulmonary artery flow decreased to half of the prerejection value. The pulmonary artery flow decreased to 14.3% of the aortic flow 5 days after the discontinuation of immunosuppression. The graft pulmonary vascular resistance increased significantly compared to the prerejection values (P < 0.001). This was not accompanied by any abnormalities on chest roentgenography. The histology was consistent, with marked perivascular lymphocytic infiltration with little alveolar or interstitial changes. During rejection, the increased pulmonary vascular resistance in the graft was probably the result of perivascular inflammatory cell infiltration, which was seen prior to changes on chest roentgenography. Changes in the left pulmonary artery flow and histology thus appear to be closely correlated in the early stages of acute rejection. 相似文献
992.
Reviews the book, Body image, eating disorders, and obesity edited by J. Kevin Thompson (1996). This book is composed of a collection of papers, authored by an impressive group of contributors, is a valuable addition to the study and treatment of the full array of eating disorders. The purpose of this book is to emphasize the central importance of "body image" in the effective assessment and management of eating disorders and obesity. The book is divided into three sections: I. Body Image Disturbance, II. Eating Disorders, and III. Obesity. Each section is organized to present assessment instruments, interview methodologies, and medical evaluation of physical status. According to the reviewer, the material in this book is very organized, comprehensive, and well presented. Researchers and clinicians alike should find the material relevant. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
993.
Bullying in the workplace is a worldwide phenomenon. There is a sizable professional literature on workplace bullying based largely on studies in European and other countries in comparison to studies involving U.S. corporations. Psychological consultants to U.S. corporations need to know and understand how certain considerations such as prevalence, legal reform and issues, and employers’ response to bullying differ in the United States compared with other countries. This article provides an overview of these considerations, emphasizing prevalence studies on bullying in the United States. It then describes one successful consultation intervention that targeting bullying in a U.S. corporation. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
994.
Brand Bethany; Classen Catherine; Lanius Ruth; Loewenstein Richard; McNary Scot; Pain Clare; Putnam Frank 《Canadian Metallurgical Quarterly》2009,1(3):205
Reports an error in "A naturalistic study of dissociative identity disorder and dissociative disorder not otherwise specified patients treated by community clinicians" by Bethany Brand, Catherine Classen, Ruth Lanins, Richard Loewenstein, Scott McNary, Claire Pain and Frank Putnam (Psychological Trauma: Theory, Research, Practice, and Policy, 2009[Jun], Vol 1[2], 153-171). Author Ruth Lanius’s name was misspelled as Ruth Lanins; author Scot McNary’s name was misspelled Scott McNary; author Clare Pain’s name was misspelled Claire Pain; and the affiliation for Richard Loewenstein should have read Sheppard Pratt Health System. (The following abstract of the original article appeared in record 2009-08949-005.) The goals of this naturalistic, cross-sectional study were to describe the patient, therapist, and therapeutic conditions of an international sample of dissociative disorder (DD) patients treated by community therapists and to determine if community treatment for DD appears to be as effective as treatment for chronic PTSD and conditions comorbid with DD. Analyses found that across both patient (N = 280) and therapist (N = 292) reports, patients in the later stages of treatment engaged in fewer self-injurious behaviors, had fewer hospitalizations, and showed higher levels of various measures of adaptive functioning (e.g., GAF) than those in the initial stage of treatment. Additionally, patients in the later stages of treatment reported lower symptoms of dissociation, posttraumatic stress disorder, and distress than patients in the initial stage of treatment. The effect sizes for Stage 5 versus Stage 1 differences in DD treatment were comparable to those published for chronic PTSD associated with childhood trauma and depression comorbid with borderline personality disorder. Given the prevalence, severity, chronicity, and high health care costs associated with DD, these results suggest that extended treatment for DD may be beneficial and merits further research. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
995.
Links between neonatal biological rhythms and the emergence of interaction rhythms were examined in 3 groups (N=71): high-risk preterms (HR; birth weight 相似文献
996.
Rajvikram Nicholas Nut David Byungil Luc Abel W. Ruth Hiromu Sei Naito Steven T. Peltier Maryann E. Martone Kazunori Nozaki Jason Mark H. 《Future Generation Computer Systems》2006,22(8):1032-1039
At iGrid 2005 we demonstrated the transparent operation of a biology experiment on a test-bed of globally distributed visualization, storage, computational, and network resources. These resources were bundled into a unified platform by utilizing dynamic lambda allocation, high bandwidth protocols for optical networks, a Distributed Virtual Computer (DVC) [N. Taesombut, A. Chien, Distributed Virtual Computer (DVC): Simplifying the development of high performance grid applications, in: Proceedings of the Workshop on Grids and Advanced Networks, GAN 04, Chicago, IL, April 2004 (held in conjunction with the IEEE Cluster Computing and the Grid (CCGrid2004) Conference)], and applications running over the Scalable Adaptive Graphics Environment (SAGE) [L. Renambot, A. Rao, R. Singh, B. Jeong, N. Krishnaprasad, V. Vishwanath, V. Chandrasekhar, N. Schwarz, A. Spale, C. Zhang, G. Goldman, J. Leigh, A. Johnson, SAGE: The Scalable Adaptive Graphics Environment, in: Proceedings of WACE 2004, 23–24 September 2004, Nice, France, 2004]. Using these layered technologies we ran a multi-scale correlated microscopy experiment [M.E. Maryann, T.J. Deerinck, N. Yamada, E. Bushong, H. Ellisman Mark, Correlated 3D light and electron microscopy: Use of high voltage electron microscopy and electron tomography for imaging large biological structures, Journal of Histotechnology 23 (3) (2000) 261–270], where biologists imaged samples with scales ranging from 20X to 5000X in progressively increasing magnification. This allows the scientists to zoom in from entire complex systems such as a rat cerebellum to individual spiny dendrites. The images used spanned multiple modalities of imaging and specimen preparation, thus providing context at every level and allowing the scientists to better understand the biological structures. This demonstration attempts to define an infrastructure based on OptIPuter components which would aid the development and design of collaborative scientific experiments, applications and test-beds and allow the biologists to effectively use the high resolution real estate of tiled displays. 相似文献
997.
Small angle X‐ray scattering has been used to study the void parameters of filter paper, kraft paper and ramie after ageing in air and in vacuo at 160 °C and 120 °C. The cellulose fibres contain long thin voids oriented with their long axis roughly parallel to the fibre axis. The aged samples were observed both dry and fully hydrated. Hydration caused small voids to open up between the fibrils which compose a single fibre. The void parameters of dry cellulose remained largely unchanged on ageing, but the wet values of aged material approached those of dry. This effect was more profound the more extreme the ageing conditions. The conclusion is that high temperatures and chain scission encourage chain mobility and facilitate hydrogen bonding between the fibrils in a mechanism similar to that proposed for hornification. Conventional hornification, whereby intrafibre hydrogen bonding increases due to dehydration below a threshold value is also likely. The additional hydrogen bonding means that the fibre is less able to open small voids and absorb water after ageing. Measurements of water retention values of filter paper support the model of structure closure. Zero span and wide span tensile strengths of filter paper fall by greater amounts, the more severe the ageing conditions. The effect of chain scission evidently dominates any internal structural modifications in determining the mechanical strength of aged fibres. © 2002 Society of Chemical Industry 相似文献
998.
A New Paradigm for a New Field: Communicating Representations of Engineering Education Research 总被引:1,自引:0,他引:1
Based on a three‐year experience of developing, facilitating, and assessing NSF‐funded workshops on Rigorous Research in Engineering Education (RREE), the authors present four representations of engineering education scholarly work in the United States, specifically teaching and research. Many of the representations describe the relationships between engineering research, education research, teaching, and assessment. For each of the representations, assessment data are presented to evaluate which aspects resonated with workshop participants and which needed to be changed for wide acceptance by a U.S. engineering education audience. It was found that participants preferred continua to dichotomy and were more receptive to models that were introduced inductively through active learning exercises. Lessons learned, implications for the field, and future plans for further development of the paradigm are also included. 相似文献
999.
Parents' functioning in the work and family roles was examined in traditional and modern societies at the transition to parenthood. Participants were 162 dual-earner Israeli Jewish and Arab families, who were interviewed and observed in dyadic and triadic interactions. Arab parents reported better adaptation to work following the first childbirth, and the triadic family process in Jewish families was more cohesive. Child care arrangements, part-time employment, easier infant temperament, and lower separation anxiety predicted maternal readaptation to work. Traditional sex-role attitudes, career centrality, full-time employment, and marital satisfaction predicted fathers' work adaptation. Parents' family focus, marital satisfaction, and responsive parenting correlated with a cohesive triadic process. Discussion considered the impact of nuclear- and extended-family living arrangements on the emerging work and family roles in young couples. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
1000.
Rosen Allyson C.; Prull Matthew W.; Gabrieli John D. E.; Stoub Travis; O'Hara Ruth; Friedman Leah; Yesavage Jerome A.; deToledo-Morrell Leyla 《Canadian Metallurgical Quarterly》2003,117(6):1150
Magnetic resonance imaging-derived entorhinal and hippocampal volumes were measured in 14 nondemented, community-dwelling older adults. Participants were selected so that memory scores from 2 years prior to scanning varied widely but were not deficient relative to age-appropriate norms. A median split of these memory scores defined high-memory and low-memory groups. Verbal memory scores at the time of imaging were lower, and entorhinal and hippocampal volumes were smaller, in the low-memory group than in the high-memory group. Left entorhinal cortex volume showed the strongest correlation (r=.79) with immediate recall of word lists. Left hippocampal volume showed the strongest correlation (r=.57) with delayed paragraph recall. These results suggest that entorhinal and hippocampal volumes are related to individual differences in dissociable kinds of memory performance among healthy older adults. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献