نتایج جستجو برای: protective structure

تعداد نتایج: 1668461  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت معلم تهران 1376

هدف از انجام این تخقیق بررسی رابطه احتمالی بین سطح مهارت زبان خارجی (foreign language proficiency) و ساختار مهارت زبان خارجی بود. تعداد 314 زبان آموز مونث و مذکر که عمدتا دانشجویان رشته های زبان انگلیسی در سطوح کارشناسی و کارشناسی ارشد بودند در این تحقیق شرکت کردند. از لحاظ سطح مهارت زبان خارجی شرکت کنندگان بسیار با هم متفاوت بودند، (75 نفر سطح پیشرفته، 113 نفر سطح متوسط، 126 سطح مقدماتی). کلا ...

2015
Armand G. Sprecher An Caluwaerts Mike Draper Heinz Feldmann Clifford P. Frey Renée H. Funk Gary Kobinger James W. Le Duc Christina Spiropoulou Warren Jon Williams

Personal protective equipment (PPE) is an important part of worker protection during filovirus outbreaks. The need to protect against a highly virulent fluid-borne pathogen in the tropical environment imposes a heat stress on the wearer that is itself a safety risk. No evidence supports the choice of PPE employed in recent outbreaks, and standard testing procedures employed by the protective ga...

Journal: :archives of razi institute 2016
h. safavieh a.h. jalali h. tajbakhsh h. paykari h. keywanfar

in the last decades researchers had focused on developing a vaccine against tick based on protective antigen. recombinant vaccines based on concealed antigen from boophilus microplus have been developed in australia and cuba by the name of tickgard and gavac (de la fuente and kocan, 2006). further studies on this antigen have shown some extent of protection against other species (de vos et al.,...

2011
Vladimir K. Mukhomorov

An attempt made to construct a model of relationship of the radioprotective and carcinogenic properties of biologically active compounds with their electron and information factors. We discovered a simple quantitative structure – activity relationships between the radioprotective effectiveness of chemicals and their molecular structure. It is established that carcinogenic properties of chemical...

Ebrahim Safavi Mahboubeh Rabbani, Maryam Khosravi Rahmatollah Rahimi

Peptides have shown Promising effect as pharmaceutics with the potential to treat a widevariety of diseases. Peptides are mostly synthesized by biological technology or chemicalmethods. Solution phasepeptide synthesis (SPS) and solid phase peptide synthesis (SPPS) aretwo major chemical techniques for peptidesproduction.In this research, the synthesis ofdipeptde(β-alanine-L-histidine)wasexamined...

Journal: :Hospital pediatrics 2016
Kristine Fortin Soyang Kwon Mary Clyde Pierce

OBJECTIVES Medical neglect can have serious consequences. There is little evidence base to guide medical neglect management and research. Our objective was to describe a group of children reported to child protective services (CPS) for medical neglect to define this population as well as identify prevention and intervention approaches. METHODS This was a retrospective descriptive study of all...

Urtica dioica L. is an Iranian native pharmacological plant for which little attention has been paid to the anatomical structure. Medical applications of this plant include diabetes therapy, digestive improvement, anemia and kidney disease therapy. Because climatic conditions can affect the anatomical structure which in turn affects pharmacological compositions, research on the anatomy of this ...

Journal: :American journal of industrial medicine 2000
Y Liu J Sparer S R Woskie M R Cullen J S Chung C T Holm C A Redlich

BACKGROUND Little is known about the extent of human isocyanate skin exposure in auto body shops and the effectiveness of personal protective equipment. Animal studies have suggested that skin exposure to isocyanates may be an important risk factor for respiratory sensitization leading to asthma. This study provides initial data on hexamethylene diisocyanate skin exposure in three auto body sho...

Journal: :Materials advances 2022

N-doped double-carbon-layer protective hierarchical structures decorating SnS nanotubes (N-DCSNs) as a remarkable LIBs anode showing high-capacity retention and long-term stability properties due to the special structure of double carbon layer.

Journal: :The Future of children 1998
P A Schene

Contemporary social issues typically spring from historical roots, and, as this article points out, that is particularly true of the effort to find a balanced, fair, and helpful way of responding to child abuse and neglect. This article examines how today's child protective services system evolved from a past of almshouses, orphan trains, anticruelty societies, and legislation establishing the ...

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