نتایج جستجو برای: 4443
تعداد نتایج: 68 فیلتر نتایج به سال:
BACKGROUND Although several epidemiological studies have examined the mortality among users of spit tobacco, none have compared mortality of former cigarette smokers who substitute spit tobacco for cigarette smoking ("switchers") and smokers who quit using tobacco entirely. METHODS A cohort of 116,395 men were identified as switchers (n = 4443) or cigarette smokers who quit using tobacco enti...
BACKGROUND Factors that make people vulnerable to or resilient against posttraumatic stress disorder (PTSD) following overwhelming stress are not well understood. The objective of this study was to prospectively examine the relation between prior assault and new-onset PTSD symptoms in a large US military cohort deployed in the wars in Iraq and Afghanistan. METHODS Data on exposures and health...
OBJECTIVE To assess costs associated with implementation of a strict 'search and isolate' strategy for controlling highly drug-resistant organisms (HDRO). DESIGN Review of data from 2-year prospective surveillance (01/2012 to 12/2013) of HDRO. SETTING Three university hospitals located in northern Paris. METHODS Episodes were defined as single cases or outbreaks of glycopeptide-resistant ...
The examination of top-cited studies is a useful method for identify and monitoring outstanding scientific research. The objective of this study was to identify and analyse the characteristics of the top 100 cited research studies on tuberculosis (TB) based on the Web of Knowledge. Overall, the top 100 cited studies were cited between 366 and 4443 times, and were published between 1995 and 2010...
Abstract The complexities of chemical composition and crystal structure are fundamental characteristics minerals that have high relevance to the understanding their stability, occurrence evolution. This review summarises recent developments in field mineral complexity outlines possible directions for its future elaboration. database structural parameters is updated by H-correction structures wi...
مستندسازی فرآیند تولید در کشاورزی شامل تهیه کلیه اطلاعات و فعالیتهایی است که سیر تولید یک محصول از مرحله تهیه بستر بذر تا برداشت را نشان میدهد. به این منظور در این پژوهش کلیه عملیاتهای مدیریتی انجام شده از مرحله تهیه بستر بذر تا برداشت برای ارقام محلی برنج از طریق مطالعات میدانی در منطقه آمل واقع در استان مازندران و منطقه رشت در استان گیلان طی سالهای 1395 و 1396 ثبت شد. نتایج نشان داد که از...
BACKGROUND Artemisinin-based combination therapy (ACT) has become the standard of care for the treatment of uncomplicated Plasmodium falciparum malaria. Although several ACT regimens are approved, data guiding optimal choices of ACTs are limited. We compared short- and long-term outcomes in a cohort of young Ugandan children randomized to 2 leading ACTs. METHODS Overall, 312 children were ran...
La intervención coronaria percutánea (ICP), en sus distintas modalidades, es el procedimiento intervencionista que se realiza más frecuentemente en los paı́ses desarrollados. Determinados avances técnicos, que minimizan el perfil de los catéteres utilizados manteniendo al mismo tiempo altos grados de eficacia, han convertido la ICP en una práctica altamente segura, tanto a corto como a medio pla...
OBJECTIVE To determine the longitudinal effect of abuse by an intimate partner on risk behavior among adolescents. DESIGN AND PARTICIPANTS Linear regression analyses of longitudinal data from 4443 adolescents surveyed in 1995 (Wave I) and 1996 (Wave II) from the National Longitudinal Study of Adolescent Health Public Use Dataset. MAIN OUTCOME MEASURES Abuse was assessed using a 5-point scal...
Previous studies (Bulant, M., Delfour, A., Vaudry, H., and Nicolas, P. (1988) J. Biol. Chem. 263, 17189-17196; Bulant, M., Roussel, J. P., Astier, H., Nicolas, P., and Vaudry, H. (1990) Proc. Natl. Acad. Sci. U.S.A. 87, 4439-4443) have shown that post-translational processing of rat thyrotropin-releasing hormone prohormone (pro-TRH) generates, besides thyrotropin-releasing hormone (TRH), a conn...
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