نتایج جستجو برای: protective devices

تعداد نتایج: 313133  

Journal: :International journal of environmental health research 2006
Sultan A Meo Muhammad A Azeem Aijaz A Qureshi G Moinudin Ghori Abdul Majeed Al-Drees Mirza Muhammad Feisal Subhan

Electromyography (EMG) of respiratory muscles is a reliable method of assessing the ventilatory muscle function, but still its use has not been fully utilized to determine the occupational and environmental hazards on respiratory muscles. Therefore, EMG of intercostal muscles was performed to determine the dose response effect of cement dust on respiratory muscles competence. Matched cross-sect...

2012
Toshihiko Fujimori Shuji Tsuruoka Morinobu Endo Katsumi Kaneko

[Abstract] We report an outstanding phenomenon related to the X-ray attenuation induced by carbon nanotubes (CNTs). We observed that the mass attenuation coefficient of CNTs was significantly higher (> 100%) than that observed for highly oriented pyrolytic graphite (HOPG) and fullerenes (C60). The attenuation coefficient of CNTs increased by reducing the sample thickness. This attenuation pheno...

Journal: :Journal of clinical nursing 2014
Crystal R Sherman Ilana R Azulay Chertok

AIMS AND OBJECTIVES To identify and compare hearing protection interventions for youth working and living on farms. BACKGROUND Noise-induced hearing loss represents a significant risk factor for injury, disability and death in agricultural populations due to an inability to receive sensory information that can indicate dangerous situations. Despite the availability of hearing protection devic...

Journal: :acta medica iranica 0
a. m. haji-zeinali m. alidosti s. e. kassaian m. salarifar

to minimize the risk of embolic events, several protection strategies have been introduced. we have evaluated the short-term outcome of patients who underwent carotid stenting with the routine use of cerebral protection devices. in our center, 36 successful carotid stenting procedures (of 38 attempted) were performed in 37 patients (23 men; age mean [sd] 667 years). cerebral protection involv...

2015
A. Sittithumwat F. Soudi K. Tomsovic

Maintenance of distribution systems plays a central, although often overlooked, role in determining both the reliability and cost of supply. In previous work, an approach was developed that optimizes the effectiveness of distribution protective devices. This paper extends that framework to the optimal use of maintenance resources for reliability. Firstly, a framework is established assuming con...

Journal: :The journal of extra-corporeal technology 1997
C R Vocelka R Thomas

The risk of air emboli is a concern for all perfusionists. A new clamping device for use with centrifugal pumps is designed to clamp both the arterial and venous lines at the first indication of air or retrograde flow, thereby allowing the perfusionist to evaluate the situation and correct the problem before entraining air into the arterial pump head. After evaluating this device in our lab, we...

2006
Rajnarayan R. Tiwari

Objective: To assess the knowledge, attitude and practices of traffic policemen towards the health effects caused by noise pollution. Materials and Methods: The present questionnaire-based study was carried out among 86 traffic policemen randomly selected for an awareness workshop for prevention of noise pollution. The questionnaire included questions regarding the self­ assessment of the polic...

Journal: :Indian journal of physiology and pharmacology 2012
Kavana G Venkatappa Vinutha Shankar Nachal Annamalai

The objectives of the present study were to (i) estimate noise levels at major traffic junctions in Bengaluru City, and (ii) assess the knowledge, attitude and practices of traffic policemen deputed at those junctions towards the auditory effects caused by noise pollution. The present questionnaire based study was carried among 60 traffic policemen. Road traffic noise was measured at different ...

Journal: :British journal of sports medicine 1986
C H Horner A A O'Brien

A retrospective study was carried out on all motorcycle injuries occurring at Mondelo Park racetrack for the 1983 and 1984 seasons. In this sport there were a total of 57 injuries for the two year period, 27 occurring in 1983 and 30 in 1984. Soft tissue injuries accounted for 66.7%, fractures 22.8% and head injuries 10.5% of the total. In the fracture group, 2 patients suffered spinal fractures...

2013
Ming-Shiang Yang Tzu-Hsien Yang Chang-Hsien Ou Si-Wa Chan Tai-I Chen Chia-Jung Yang Chia-Ming Chiang Wen-Chien Huang

The purpose of the technical note is to introduce the complex coil assisted coil embolization method in the treatment of intracranial small aneurysm, in order to enhance the safety of the procedure. The first microcatheter was navigated into the aneurysm sac and the ultrasoft coil was used as the embolization coil. If the embolizations coil could not stay within the aneurysm sac smoothly, such ...

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