نتایج جستجو برای: damage mechanism

تعداد نتایج: 772342  

احمدی, سعیده, زرگری, مهریار, شعبانی, سمانه, مهروز, عبدالکریم ,

Background and purpose: Acetaminophen is one of the most popular analgesic and antipyretic drugs and its overdose can cause severe damage to liver and kidneys in human and animals. Renal dysfunction and acute renal injury can occur without damage in the liver. Unlike kidney damage, mechanisms of liver damage are poorly understood. The aim of present study was to investigate the protective effec...

Journal: :The Plant cell 2015
Chun-Hsin Liu Andreas Finke Mariana Díaz Wilfried Rozhon Brigitte Poppenberger Tuncay Baubec Ales Pecinka

DNA damage repair is an essential cellular mechanism that maintains genome stability. Here, we show that the nonmethylable cytidine analog zebularine induces a DNA damage response in Arabidopsis thaliana, independent of changes in DNA methylation. In contrast to genotoxic agents that induce damage in a cell cycle stage-independent manner, zebularine induces damage specifically during strand syn...

شهیدی , مریم, مختاری دیزجی , منیژه, مزدارانی , حسین,

Background and purpose : Ënhanced sensitivity to the chromosome-damaging effects of ionizing radiation is a feature of many cancer-predisposing conditions. Ïn this study we compared the radiation sensitivity of breast cancer patients and healthy volunteers by measuring the levels of initial DNÂ damage in peripheral leukocytes using the comet assay (single-cell alkaline gel electrophoresis). ...

Journal: :iranian red crescent medical journal 0
serpil can department of physiology, school of medicine, kafkas university, kars, turkey; department of physiology, school of medicine, kafkas university, kars, turkey. tel: +90-50566260271 jale selli department of histology and embryology, school of medicine, ataturk university, erzurum, turkey basak buyuk department of histology and embryology, school of medicine, ataturk university, erzurum, turkey sergulen aydin department of family medicine, school of medicine, kafkas university, kars, turkey ramazan kocaaslan department of urology, school of medicine, kafkas university, kars, turkey gulname findik guvendi department of pathology, school of medicine, kafkas university, kars, turkey

conclusions the findings suggest that estrogen supplementation increases damage in testicular tissue due to eccentric exercise. results conventional light microscopic results revealed that testes tissues of the eccentric exercise administered group and the estrogen supplemented group exhibited slight impairment. in groups that were both eccentrically exercised and estrogen supplemented, more de...

ژورنال: Journal of Railway Research 2019
Azizi, Mojtaba, Fatehi, Mahsa, Hosseini Tehrani, Parisa, Frestade, Iman,

This research is concerned with weighing the behavior of the front end energy absorption system of a locally manufactured locomotive in crash situations. The causes of the extensive damages to the energy absorption apparatus that includes the crash element and the buffer are studied. By choosing the proper damage model the conditions of the accident is simulated by using the ABAQUS engineering ...

Journal: :computational methods in civil engineering 2013
o. yazdanpanah s. m. seyedpoor

in this paper, a crack localization method for euler-bernoulli beams via an efficient static data based indicator is proposed. the crack in beams is simulated here using a triangular variation in the stiffness. static responses of a beam are obtained by the finite element modeling. in order to reduce the computational cost of damage detection method, the beam deflection is fitted through a poly...

Journal: :journal of rehabilitation in civil engineering 2015
seyed amir hossein hashemi gholamreza ghodrati amiri farzaneh hamedi

results of damage prediction in buildings can be used as a useful tool for managing and decreasing seismic risk of earthquakes. in this study, damage spectrum and c4.5 decision tree algorithm were utilized for damage prediction in steel buildings during earthquakes. in order to prepare the damage spectrum, steel buildings were modeled as a single-degree-of-freedom (sdof) system and time-history...

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