نتایج جستجو برای: risk zone

تعداد نتایج: 1049120  

2009
Yingfeng Li Yong Bai

Numerous factors may contribute to high-severity crashes in highway work zones. Identifying these factors and then alleviating their impact is a challenging task that traffic engineers and researchers have to confront. In this study, the work zone risk factors that could increase the probability of causing fatalities when severe crashes occur were examined using a comprehensive approach. The re...

Journal: :Journal of public health 2003
O L Lloyd

BACKGROUND The aim of this study was to determine whether the risk of congenital anomalies in a population resident close to a waste combustion plant located at Byker in the city of Newcastle upon Tyne, United Kingdom, was higher than in a population resident further away. METHODS A geographical study was carried out on the prevalence of congenital anomalies in residents living within 3 km (i...

2014
Matthieu Biais Stephan Ehrmann Arnaud Mari Benjamin Conte Yazine Mahjoub Olivier Desebbe Julien Pottecher Karim Lakhal Dalila Benzekri-Lefevre Nicolas Molinari Thierry Boulain Jean-Yves Lefrant Laurent Muller

INTRODUCTION Pulse pressure variation (PPV) has been shown to predict fluid responsiveness in ventilated intensive care unit (ICU) patients. The present study was aimed at assessing the diagnostic accuracy of PPV for prediction of fluid responsiveness by using the grey zone approach in a large population. METHODS The study pooled data of 556 patients from nine French ICUs. Hemodynamic (PPV, c...

1997
Claire Tomlin George J. Pappas

Next Generation Air Traac Management will allow for the possibility of free ight, in which each aircraft chooses its own optimal route, altitude and speed. In a free ight environment, the trajectories of several aircraft may be connicting, in which case aircraft may or may not cooperate in resolving the connict. This paper presents a method for noncooperative connict resolution in which each ai...

Journal: :The International journal of periodontics & restorative dentistry 2013
George A Mandelaris Brian S Vence Alan L Rosenfeld David P Forbes

Pretreatment knowledge of crestal and radicular dentoalveolar zones and their associated thicknesses can improve risk assessment to meet esthetic and functional goals, particularly when discrepancies in anterior maxillary and mandibular arches exist and when an anterior protected articulation is to be achieved. This paper discusses a new classification of dentoalveolar bone phenotypes that diff...

Journal: :Circulation 2006
Anthony H Aletras Gauri S Tilak Alex Natanzon Li-Yueh Hsu Felix M Gonzalez Robert F Hoyt Andrew E Arai

BACKGROUND The aim of this study was to determine whether edema imaging by T2-weighted cardiac magnetic resonance (CMR) imaging could retrospectively delineate the area at risk in reperfused myocardial infarction. We hypothesized that the size of the area at risk during a transient occlusion would be similar to the T2-weighted hyperintense region observed 2 days later, that the T2-weighted hype...

2017
Sarah H. Lockie Clare V. McAuley Sasha Rawlinson Natalie Guiney Zane B. Andrews

Most studies that measure food intake in mice do so in the home cage environment. This necessarily means that mice do not engage in food seeking before consumption, a behavior that is ubiquitous in free-living animals. We modified and validated several commonly used anxiety tests to include a palatable food reward within the anxiogenic zone. This allowed us to assess risk-taking behavior in foo...

Journal: :Circulation 1985
T Force A J Kemper C Cohen A F Parisi

Studies in animals with acutely ischemic hearts have suggested that postextrasystolic potentiation (PESP) may predict the viability of dysfunctional myocardium. Most of these data have been obtained with sonomicrometers and therefore the presence and extent of PESP throughout the entire region at risk has not been defined. In this study we used contrast two-dimensional echocardiography (2DE) to...

2004
J. F. P. Engelbrecht

The use of indicators for evaluating the microbiological quality of the marine surf-zone water is a worldwide practice. It is important that the indicator used, is the most relevant in relation to bathers’ health. It must be easy to detect and it must be cost effective. This paper reports the comparison between the occurrence of faecal coliforms and Escherichia coli in the marine surf-zone. Bot...

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