نتایج جستجو برای: damage

تعداد نتایج: 226000  

Journal: :iranian journal of radiation research 0
c.k.k. nair pushpagiri institute of medical sciences and research centre, thiruvalla - 689101, kerala, india a. menon pushpagiri institute of medical sciences and research centre, thiruvalla - 689101, kerala, india

background: exposure to ionizing radiation results in genotoxicity and the unrepaired lesions in cellular dna results in cell cycle arrest, reproductive death, interphase death, division delay, chromosome aberrations, mutations, etc. leading to the intensive destruction of cells and violation of their proliferative capacity there by adversely affecting the mammalian system. since ionizing radia...

Journal: :international journal of civil engineering 0
reza abbasnia department of civil engineering, iran university of science and technology, tehran, iran neda mirzadeh iran university of science and technology kamyar kildashti iran university of science and technology

in recent years, different damage indexes have been introduced in engineering literature. the most prominent one among other counterparts is the 1985 park and ang's damage index (dipa), which demonstrates well calibration against experimental results. hence, it has traditionally had broad application in the field of structural engineering. commonly, in dipa relevant parameters are assessed...

Journal: :international journal of civil engineering 0
s. eshghi v. zanjanizadeh

this paper presents an experimental study on seismic repair of damaged square reinforced concrete columns with poor lap splices, 90-degree hooks and widely spaced transverse bars in plastic hinge regions according to aci detailing (pre.1971) and (318-02) using gfrp wraps. three specimens were tested in “as built” condition and retested after they were repaired by glass fiberreinforced plastic s...

Journal: :iranian journal of pathology 2015
ameneh ghaffarinia cyrus jalili ali mostafaie shahram parvaneh nafiseh pakravan

background and objectives: multiple sclerosis is an inflammatory disease of the central nervous system. this is due to migration of peripherally activated lymphocytes to central nervous system leading to inflammatory lesions. however, liver has an anti-inflammatory microenvironment. myelin expression in the liver of transgenic mice suppresses inflammatory lesions within central nervous system. ...

Journal: :iranian journal of pharmaceutical research 0
maryam mohadjerani department of biology, faculty of science, university of mazandaran mina vosoghi roodgar university of mazandaran

ilex spinigera (aquifoliaceae) plant is an evergreen tree or shrub with thick glossy dark green leaves and red fruits. this plant has medicinal properties and has been used traditionally in northern iran for malaria treatment. the aim of this work is to evaluate the antioxidative activities and the inhibitory effect of i.spinigera on the oxidation of dna. we have found no reports about the popu...

Journal: :the iranian journal of pharmaceutical research 0
hamed tabeefar department of pharmacotherapy, faculty of pharmacy, tehran university of medical sciences, tehran, iran. mohammad taghi beigmohammadi anesthesiology and intensive care department, school of medicine, tehran university of medical sciences, tehran, iran. mohammad reza javadi department of pharmacotherapy, faculty of pharmacy, tehran university of medical sciences, tehran, iran. mohammad abdollahi pharmaceutical sciences research center, faculty of pharmacy, tehran university of medical sciences, tehran, iran. ata mahmoodpoor anesthesiology and intensive care department, school of medicine, tabriz university of medical sciences, tabriz, iran. arezoo ahmadi anesthesiology and intensive care department, school of medicine, tehran university of medical sciences, tehran, iran.

stress-related mucosal damage (srmd) is a significant cause of morbidity and mortality in critically ill patients due to the gastrointestinal blood loss. prophylaxis of srmd with proton pump inhibitors or histamine-2 blockers has gained widespread use in intensive care units. both demonstrated to be effective in reducing clinically significant bleedings, while ppis has shown to exert some anti ...

Ali Hassanzadeh Jafar Eskandari.Jam, Saeid Shokrolahi

Structural health monitoring and damage detection is one of the most important subjects for mechanic and aerospace engineers. Structural fault can cause uncompensated problems for both human and environment. There are several methods for solving this problem, but the most useful methods are those which focuse on structural change in the vibrational properties. This paper presents a feasibility ...

Journal: :journal of structural engineering and geo-techniques 2012
a esfandiari

in this paper, a structural damage identification method (sdim) is developed for plate-like structures. this method is derived using dynamic equation of undamaged/damaged plate, in which local change in flexural rigidity is characterized utilizing a damage distribution function. the sdim requires to modal data in the intact state and frequency response of damage state where most of vibration ba...

Journal: :dental research journal 0
inês morais caldas teresa magalhães eduarda matos américo afonso

background: currently, orofacial sequelae are recognized as very influential on the qualityof- life for a victim of orofacial damage. therefore, correct forensic assessment for indenisation purposes is mandatory. however, orofacial damage is frequently reduced to organic components, which results in a forensic assessment process, which are inadequate. this study aims to improve the orofacial da...

Journal: :مهندسی بیوسیستم ایران 0
فیض اله شهبازی استادیار، دانشکدۀ کشاورزی، دانشگاه لرستان سعید محمدزاده استادیار، دانشکده کشاورزی دانشگاه لرستان

improper transportation of agricultural materials causes mechanical damage to them. the damage isdepended to the physical and mechanical properties of the product and properties of the appliedforce. vibration generated by vehicles during road transportation causes shake the product, contactit with carrier bin and other components, tissues deformation and damage to product. this researchwas cond...

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