نتایج جستجو برای: 2563

تعداد نتایج: 152  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی و علوم دریایی 1389

چکیده خصوصیات خاک یکی از عوامل موثر در پراکنش پوشش گیاهی به شمار می رود. بنابراین آگاهی از نحوه تغییرپذیری ویژگی های خاک و تاثیر آن بر پوشش گیاهی برای دستیابی به مدیریت بهتر و پایدار در عرصه مراتع امری ضروری به نظر می رسد. علاوه بر تغییرپذیری مکانی خصوصیات خاک و تاثیر آن بر پوشش گیاهی، شناخت منبع این تغییرات و چگونگی وابستگی مکانی آنها با گیاهان از اهمیت خاصی برخوردار است. هر یک از خصوصیات خاک...

2016
Erik J. van Nieukerken Camiel Doorenweerd Robert J. B. Hoare Donald R. Davis

A catalogue of all named Nepticulidae and Opostegidae is presented, including fossil species. The catalogue is simultaneously published online in the scratchpad http://nepticuloidea.info/ and in Catalogue of Life (http://www.catalogueoflife.org/col/details/database/id/172). We provide a historical overview of taxonomic research on Nepticuloidea and a brief 'state of the art'. A DNA barcode data...

2011
Katie L. Mason Taylor A. Stepien Jessamina E. Blum Jonathan F. Holt Normand H. Labbe Jason S. Rush Kenneth F. Raffa Jo Handelsman

UNLABELLED A dynamic homeostasis is maintained between the host and native bacteria of the gastrointestinal tract in animals, but migration of bacteria from the gut to other organs can lead to disease or death. Enterococcus faecalis is a commensal of the gastrointestinal tract; however, Enterococcus spp. are increasingly frequent causes of nosocomial infections with a high mortality rate. We in...

2005
Stefano Bianchi Roberto Bigazzi Carla Valtriani Ivo Chiapponi Gianpaolo Sgherri Giorgio Baldari Andrea Natali Eleuterio Ferrannini Vito M. Campese

Hyperinsulinemia, insulin resistance, or both have been described in patients with essential hypertension. Previous work from our laboratory has shown that in hypertensive patients with microalbuminuria, dyslipidemia and abnormal patterns in the diurnal variations of blood pressure are frequently associated. Whether hyperinsulinemia and microalbuminuria are directly related has not been determi...

Journal: :Health technology assessment 2009
E L Simpson A Duenas M W Holmes D Papaioannou J Chilcott

OBJECTIVES This report addressed the question 'What is the clinical and cost-effectiveness of spinal cord stimulation (SCS) in the management of chronic neuropathic or ischaemic pain?' DATA SOURCES Thirteen electronic databases [including MEDLINE (1950-2007), EMBASE (1980-2007) and the Cochrane Library (1991-2007)] were searched from inception; relevant journals were hand-searched; and approp...

2011
Marc Descatoire Jean-Claude Weill Claude-Agnès Reynaud Sandra Weller

The Rockefeller University Press J. Exp. Med. Vol. 208 No. 13 2563-2569 To the Editor: In a recent issue of The Journal of Experimental Medicine, Thomas Rothstein and colleagues, a group with long-standing expertise in the field of mouse B1 cells, reported the description of a B1 B cell subset in human blood, a population that has thus far eluded identification (Griffin et al., 2011). Mouse B1 ...

2011
Martin Perez-Andres Christina Grosserichter-Wagener Cristina Teodosio Jacques J.M. van Dongen Alberto Orfao Menno C. van Zelm

The Rockefeller University Press J. Exp. Med. Vol. 208 No. 13 2563-2569 To the Editor: In a recent issue of The Journal of Experimental Medicine, Thomas Rothstein and colleagues, a group with long-standing expertise in the field of mouse B1 cells, reported the description of a B1 B cell subset in human blood, a population that has thus far eluded identification (Griffin et al., 2011). Mouse B1 ...

2011
Thomas Rothstein

The Rockefeller University Press J. Exp. Med. Vol. 208 No. 13 2563-2569 To the Editor: In a recent issue of The Journal of Experimental Medicine, Thomas Rothstein and colleagues, a group with long-standing expertise in the field of mouse B1 cells, reported the description of a B1 B cell subset in human blood, a population that has thus far eluded identification (Griffin et al., 2011). Mouse B1 ...

2010

Objective: This study assessed the diagnostic yield of capsule endoscopy (CE) and its impact on patients with obscure gastrointestinal bleeding (OGIB). Subjects and Methods: Between May 2007 and May 2009, 63 patients with OGIB (overt bleeding: 25, and occult blood loss with chronic ferropenic anemia: 38) and normal upper and lower endoscopy were studied by CE. Demographic characteristics, prior...

2002
Kenny I. K. Lei Lisa Y. S. Chan Wing-Yee Chan Philip J. Johnson Dennis Lo

Purpose: Natural killer/T-cell (NK/T-cell) lymphoma is a highly aggressive tumor for which no serological tumor marker has yet been established to be useful clinically. We investigated the potential of circulating EBV DNA as a tumor marker for this malignancy. Experimental Design: A real-time quantitative PCR assay was used to measure circulating EBV DNA. Results: Plasma EBV DNA levels were mea...

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