نتایج جستجو برای: stressintensity factor sif

تعداد نتایج: 844822  

Journal: :Social science & medicine 2008
Nadia Fairbairn Will Small Kate Shannon Evan Wood Thomas Kerr

Supervised injection facilities are a form of micro-environmental intervention that aim to address various harms associated with injection drug use. Given the numerous threats faced by women who inject drugs and are street-involved, including heightened risks for violence, we sought to elucidate how North America's first supervised injection facility (SIF) mediates the impact of violence among ...

Journal: :International journal of health policy and management 2015
Ehsan Jozaghi Asheka Jackson

BACKGROUND Research predicting the public health and fiscal impact of Supervised Injection Facilities (SIFs), across different cities in Canada, has reported positive results on the reduction of HIV cases among People Who Inject Drugs (PWID). Most of the existing studies have focused on the outcomes of Insite, located in the Vancouver Downtown Eastside (DTES). Previous attention has not been af...

2017
Benjamin A. Bouvier Beth Elston Scott E. Hadland Traci C. Green Brandon D. L. Marshall

BACKGROUND Supervised injection facilities (SIFs) are legally sanctioned environments for people to inject drugs under medical supervision. SIFs currently operate in ten countries, but to date, no SIF has been opened in the USA. In light of increasing overdose mortality in the USA, this study evaluated willingness to use a SIF among youth who report non-medical prescription opioid (NMPO) use. ...

Journal: :Biomedical and environmental sciences : BES 2010
Bo Yu Qing-Feng Chen Zhao-Ping Liu He-Fei Xu Xiao-Peng Zhang Qain Xiang Wen-Zhong Zhang Wen-Ming Cui Xin Zhang Ning Li

OBJECTIVES This paper aims to investigate the uterotrophic activities of lactational exposure to combination of soy isoflavones (SIF) and bisphenol A (BPA) and to examine estrogen receptor α (ERα) and estrogen receptor β (ERβ) expressions in hypothalamus-pituitary-ovary axis and uterus. METHODS Maternal rats that were breeding about 8 litters were randomly divided into four groups with seven ...

Journal: :Remote Sensing 2022

Alpine meadow ecosystems are extremely vulnerable to climate change and serve an essential function in terrestrial carbon sinks. Accurately estimating their gross primary productivity (GPP) is for understanding the global cycle. Solar-induced chlorophyll fluorescence (SIF), as a companion product directly related plant photosynthesis process, has become attractive pathway GPP accurately. To dat...

Journal: :Materials Science Poland 2023

Abstract Failure starts with creation of a crack, then the propagation crack and eventually fracture material. Furthermore, material selection, geometry, processing residual stresses are critical factors that may contribute to uncertainty prospective failure mechanisms in engineering. These issues also arise computational analysis, problematic model, for instance, three-dimensional surface nece...

Journal: :Drug and alcohol dependence 2006
Mark W Tyndall Thomas Kerr Ruth Zhang Evelyn King Julio G Montaner Evan Wood

BACKGROUND North America's first government sanctioned supervised injection facility (SIF) was opened in Vancouver in response to the serious health and social consequences of injection drug use and the perseverance of committed advocates and drug user groups who demanded change. This analysis was conducted to describe the attendance, demographic characteristics, drug use patterns, and referral...

2015
Christina Zeeh Michael J. Mustari Bernhard J. M. Hess Anja K. E. Horn

In all vertebrates the eyes are moved by six pairs of extraocular muscles enabling horizontal, vertical and rotatory movements. Recent work showed that each extraocular muscle is controlled by two motoneuronal groups: (1) Motoneurons of singly-innervated muscle fibers (SIF) that lie within the boundaries of motonuclei mediating a fast muscle contraction; and (2) motoneurons of multiply-innervat...

2013
Xiang-Fa Wu E. Lilla W.-S. Zou X.-F. Wu

This paper is concerned with a semi-infinite interfacial crack between two bonded dissimilar elastic strips with equal thickness. Solutions for the complex stress intensity factor (SIF) and energy release rate (ERR) are obtained in closed form under in-plane deformations. During the procedure, the mixed boundary-value problem is reduced by means of the conformal mapping technique to the standar...

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
علی عبداللهی فر محمد رحیم نامی بهادر سرانجام

in this paper, the mixed-mode dynamic fracture analysis of a fgm plate is performed using mlpg method also the effect of changes in value and angle of material gradation on the dynamic stress intensity fctor(sif) of mode i, ii, and effective are investigated. to solve time dependent equations that discretized by mlpg method, the central difference method (cdm) and the newmark method are used. a...

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