نتایج جستجو برای: and mean diameter
تعداد نتایج: 16852549 فیلتر نتایج به سال:
Background & Aim: Varicocele is the dilation of the pampiniform venous plexus of testis more than 2 mm and is one of the most common causes of sperm abnormalities in infertile men. The main diagnostic test for varicocele is ultrasonography that evaluates the vein diameter in B mode exam and venous reflux in color Doppler exam, but there is no single agreement on the importance of these two ...
thirty pairs ovaries of camel from isfahan abattoiry were collected. in each specimen, some parameters such as length, width and thickness of left and right ovaries were measured. for histological studies , after tissue preparation and staining with h&e;, the ovarian follicles were recognized and classified. for each follicle some parameters such as: diameter of oocyte and follicle, thicknes...
objective(s): electrospun nanofibrous mats of poly(lactic acid) (pla) and nanohydroxyapatite (nano-ha) were prepared and proliferation and differentiation of mesenchymal stem cells on the prepared nanofibers were investigated in this study. materials and methods: pla/nano-ha nanofibers were prepared by electrospinning. the effects of process parameters, such as nano-ha concentration, distance, ...
Biomass is a key factor in dynamics evaluation of ecosystems, biodiversity level and their stability. Biomass measurement is performed every year to evaluate range ecosystems (investigating the trend of changes), range management (suitable browsing systems) and cover assessment in rangelands. As direct biomass measurement is time-consuming, has costs and destroy rangelands non-destructive metho...
Background: Methotrexate is a folic acid antagonist which is widely used as a cytotoxic chemotherapeutic agent for leukemia and other malignancies. Methotrexate (MTX) leads to acute toxic side effects in tissues or organs containing rapidly dividing cells such as seminiferous tubules. In this study, we investigated the protective effects of vitamin C against MTX-induced injury in rat testis. M...
purpose : to determine the efficacy of fibrin glue in corneal perforations up to 3 mm in diameter methods : a case series study was performed on corneal perforations up to 3 mm who were admitted at farabi hospital- tehran. age, visual acuity, presence and size of corneal thinning, corneal epithelial defect, size and depth of corneal infiltration, site and size of corneal perforation, corneal va...
the issue of curriculum and syllabus evaluation and revision has been in center of attention right from when curriculum came into attention of educational institutions. thus everywhere in the world in educational institutions curricula and syllabi are evaluated and revised based on the goals, the needs, existing content, etc.. in iran any curriculum is designed in a committee of specialists and...
An experiment was conducted to describe the characteristics of Angora rabbit fiber using optical fiber diameter analyzer (OFDA). A total of 349 fleece samples were collected from 60 French Angora rabbits. Recorded measurements of OFDA were as follows: mean fiber diameter, CV of fiber diameter, comfort factor, spinning fineness, mean fiber curvature, SD of fiber curvature, mean opacity of fibers...
Tree marking can cause changes in forest. This study aimed to assess tree marking operation and to predict its effect on stand structure of Persian ironwood-hornbeam stands at Bahramnia forestry plan, north of Iran. Therefore 98 trees that were marked in compartment 9 of the mentioned forest in 2017 based on selection system and according to the recent laws of Forests, Range and Watershed Manag...
Introduction:The assessment of intravascular volume in severely traumatized patients or patients admitted in ICU is very essential. At present the accurate method for estimating the intravascular volume requirement is by measuring the CVP which is an invasive method. The measurement of IVC diameter by ultrasound has been suggested as an easily available and simple method for measuring the intra...
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