نتایج جستجو برای: protective structure

تعداد نتایج: 1668461  

Journal: :Brazilian Journal of Pharmaceutical Sciences 2022

The histological structure and biochemistry of the skin is affected by solar radiation having adverse effects ranging from sunburns, premature aging that includes wrinkles, spots, dryness, loss collagen to cancer development. has defense mechanisms prevent damage caused radiation, but when exposure excessive these are not strong enough protect skin. use sunscreen most common practice photo- pro...

2005
Hiroyuki Konishi Masato Yamashita Hitoshi Uchida Jun’ichiro Mizuki

We have performed extended X-ray absorption fine structure (EXAFS) analysis for artificial Cr-goethite to elucidate the local structure around Cr in Cr-goethite. The spectra were obtained using synchrotron radiation X-rays at the Photon Factory in Tsukuba. The first shell contributions were isolated by Fourier filtering the EXAFS data, and the inverse Fourier transformed single-shell data were ...

Journal: :Science 2008
Case McNamara Annelies S Zinkernagel Pauline Macheboeuf Madeleine W Cunningham Victor Nizet Partho Ghosh

Antigenically variable M proteins are major virulence factors and immunogens of the human pathogen group A Streptococcus (GAS). Here, we report the approximately 3 angstrom resolution structure of a GAS M1 fragment containing the regions responsible for eliciting type-specific, protective immunity and for binding fibrinogen, which promotes M1 proinflammatory and antiphagocytic functions. The st...

Journal: :iranian journal of science and technology (sciences) 2005
k. erenturk

in this paper, design and application of a new digital protective relay based on fuzzy logicand value estimation to a radial power system protection was presented. a novel approach based onvalue estimation was investigated for the proposed fuzzy logic based protective relay. in addition to thetheoretical aspect of fuzzy logic, mathematical definition of value estimation, detection andmeasuremen...

2015
G. Fox-Rabinovich A. Kovalev S. Veldhuis K. Yamamoto J. L. Endrino I. S. Gershman A. Rashkovskiy M. H. Aguirre D. L. Wainstein

Atomic-scale, tribo-ceramic films associated with dissipative structures formation are discovered under extreme frictional conditions which trigger self-organization. For the first time, we present an actual image of meta-stable protective tribo-ceramics within thicknesses of a few atomic layers. A mullite and sapphire structure predominates in these phases. They act as thermal barriers with an...

2016
Paul Bywaters Geraldine Brady Tim Sparks Elizabeth Bos Lisa Bunting Brigid Daniel Brid Featherstone Kate Morris Jonathan Scourfield

(2015) Exploring inequities in child welfare and child protection services: explaining the 'inverse intervention law', Children and Youth Services Review, 57, pp. 98-105. ABSTRACT Attempts to record, understand and respond to variations in child welfare and protection reporting, service patterns and outcomes are international, numerous and longstanding. Reframing such variations as an issue of ...

2015
Won-Gyu Yoo

[Purpose] The present study examined the effects of wearing rubber gloves on the activities of the forearm and shoulder muscles during two dishwashing stages. [Subjects] This study included 10 young females. [Methods] The participants performed two dishwashing stages (washing and rinsing) with and without rubber gloves. The activities of the wrist flexor and upper trapezius muscles were measure...

Journal: :Journal of the Royal Army Medical Corps 2009
S A Bland

A chemical, biological, radiological or nuclear (CBRN) event would require a critical care response from point of exposure to definitive hospital management. Critical care staff should be aware of the potential agents and possible hazard they present to responders. The treatment of CBRN casualties should reflect the conventional incident and casualty management paradigms with additional safety ...

Journal: :Archives of environmental contamination and toxicology 1992
T L Lavy J E Cowell J R Steinmetz J H Massey

This study addresses the measurements of glyphosate exposure received by 14 workers employed at two tree nurseries. The applicators, weeders, and scouts monitored all wore normal work clothing, which for applicators was a protective suit, rubber gloves and boots. Measurements were made of the glyphosate that was dislodged from conifer seedlings during water rinses taken twice weekly from May th...

Journal: :Medycyna pracy 2014
Łukasz Szarpak Andrzej Kurowski

BACKGROUND Undamaged medical gloves protect medical personnel from contact with physiological fluids of the patient. Thus they protect the assistance provider from hand skin contamination with potentially infectious biological materials. The aim of the study was to evaluate the occurrence of pierce, perforations or damage of medical gloves during cannulation of blood vessels. MATERIALS AND ME...

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