نتایج جستجو برای: heterogeneity

تعداد نتایج: 95065  

Journal: :نشریه بین المللی چند تخصصی سرطان 0
mossa gardaneh tehran-karaj hwy, pazhoohesh blvd, nigeb

despite diagnostic, preventive and therapeutic advances, growing incidence of cancer and high rate of mortality among patients affected by specific cancer types indicate current clinical measures are not ideally useful in eradicating cancer. chemoresistance and subsequent disease relapse are believed to be mainly driven by the cell-molecular heterogeneity of human tumors that necessitates perso...

Journal: :medical journal of islamic republic of iran 0
b goliaei from tile institute of biochemistry and biophysics, university of tehran, tehran, islamic republic of iran. a deizadji a rabbani

two groups of antibodies against mouse resident alveolar and peritoneal macrophages have been raised individually in rabbits by immunization with whole cell suspensions of lavaged alveolar and peritoneal macrophages. the whole antisera reacted positively with neutrophils and lymphocytes. however, upon extensive absorptions with these cells the activity became restricted to macrophages. the immu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1386

چکیده ندارد.

Journal: :international journal of civil engineering 0
j. jalili international institute of earthquake engineering and seismology, geotechnical research center, room 304, no. 21, arghavan st., north dibaji, farmanieh, tehran 19395/3913, iran m. k. jafari international institute of earthquake engineering and seismology, geotechnical research center, no. 21, arghavan st., north dibaji, farmanieh, tehran 19395/3913, iran a. shafiee international institute of earthquake engineering and seismology, geotechnical research center, no. 21, arghavan st., north dibaji, farmanieh, tehran 19395/3913, iran j. koseki geotechnical engineering laboratory, institute of industrial science, the university of tokyo, room ce-201, komaba 4-6-1, meguro-ku, tokyo, 153-8505, japan t. sato geotechnical engineering laboratory, institute of industrial science, the university of tokyo, room ce-201, komaba 4-6-1, meguro-ku, tokyo, 153-8505, japan

a series of tests and also numerical analyses were conducted to explore the mechanical behavior of a mixture of coarse gravelsize particles floating in a matrix of silt, sand or clay. the research is a step forward in an ongoing investigation on behavior of composite clay, which is used as the core material of some large embankment dams all over the world. after providing the reader with an ove...

Journal: :iranian journal of oil & gas science and technology 2013
misagh delalat riyaz kharrat

the gas-assisted gravity drainage (gagd) process is designed and practiced based on gravitydrainage idea and uses the advantage of density difference between injected co2 and reservoir oil.in this work, one of iran western oilfields was selected as a case study and a sector model wassimulated based on its rock and fluid properties. the pressure of co2 gas injection was close to themmp of the oi...

Journal: :گوارش 0
bijan ahmadi pejman bagheri motahare zaherara

background: various studies on prevalence of celiac disease in patients with irritable bowel syndrome in iran is available that chiefly, the prevalence of this disease and its association with several factors have been investigated. in order to gain a better perspective of iran and spread across the heterogeneity, all studies included in the systematic review, the findings were analyzed and use...

Background: Incidence of polyhydramnios in various studies has been reported from 0.2 to 3.9%. Approximately, 50-60% of cases are idiopathic with no known etiology. We aimed to investigate perinatal outcomes of idiopathic polyhydramnios with a normal ultrasound. Materials and Methods: In this study, Persian and English databases including Barakatkns, SID, Magiran, Medline, Science Direct, Scopu...

This research presents temperature distribution and thermal strain of functionally graded material cylinders with varying thickness and temperature-dependency properties that are subjected to heat fluxes in their inner and outer layers. The heterogeneous distribution of properties is modeled as a power function. Using first-order temperature theory and the energy method, governing equations are...

Journal: :journal of agricultural science and technology 2015
s. chatterjee r. goswami p. bandopadhyay

targeted extension for heterogeneous farming systems is a challenge in developing countries. farm type identification and characterization based on estimates of income from different farm components allows simplifying diversity in farming systems. use of multivariate statistical techniques, such as principal component analysis (pca) and cluster analysis (ca), help in such farm typology delineat...

Journal: :محیط زیست طبیعی 0
زهرا نوری دانشجوی دکترای جنگلداری، دانشکده منابع طبیعی، دانشگاه تهران، ایران جهانگیر فقهی دانشیار گروه جنگلداری، دانشکده منابع طبیعی، دانشگاه تهران، ایران قوام الدین زاهدی امیری دانشیار گروه جنگلداری، دانشکده منابع طبیعی، دانشگاه تهران، ایران رامین رحمانی دانشیار گروه جنگلداری، دانشگاه گرگان، ایران

the aim of this study is to investigate the tree species' diversity in a region with no management planning and introduce the calculated indices as the norm for sustainability assessment. dbh of all tree individuals, and their stories were recorded in the inventory grid (75 m × 100 m) sample plots. subsequently, richness, evenness (simpson, smith & wilson) and heterogeneity (simpson, shann...

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