نتایج جستجو برای: sperm counting chamber

تعداد نتایج: 116074  

Journal: :Journal of morphology 2007
Dimitar Dimitrov Fernando Alvarez-Padilla Gustavo Hormiga

The female genital morphology of the spiders in the araneoid genus Agriognatha (Tetragnathidae) is described and illustrated. The female genitalia of Agriognatha is characterized by a strong reduction of the sperm storage organs (spermathecae) and by the presence of a specialized distal compartment of the median membranous chamber that functions as a sperm storage organ (the posterior sac). The...

2013
Aysun Karabulut Arzu Tekin

Gönderilme tarihi: 23.10.2012 Kabul tarihi: 13.11.2012 Abstract Purpose: The aim of this study was to investigate the differences in sperm morphology and motility in patients with different sperm counts, and to search the influence of sperm morphology over sperm motility. Materials and methods: We evaluated semen analysis of 1174 males admitted to infertility clinic using “Makler counting cambe...

Journal: :veterinary research forum 2013
mazdak razi hassan malekinejad reza sayrafi mohammad reza hosseinchi sajad feyzi

formalin is widely used in industry and in medicine (as tissue fixative and disinfectant).it contains reactive molecules which have been known for its cytotoxic effects. to evaluate the effect of formalin exposure on the testicular tissue and sperm parameter from neonatal period through physical and sexual maturity, 28 male wister rats were assigned into two equal test and control groups. the t...

Journal: : 2023

The optimal formula for calculating the total number of hemocytes (HTN) Australian red-claw crayfish (Cherax quadricarinatus) has been established, which allows optimizing time counting HTN without re-ducing accuracy. Methodical recommendations on preparing a hemolymph sample, calculation and differentiated are given. It was found out that differences in minimal when using different formulas, i...

Journal: :Journal of bacteriology 2003
C Vincent

The method used for counting bacteria in tomato catsups, pulp or paste depends on the use of the Zeiss blood counter. In this method a drop of catsup diluted with two portions of distilled water is placed in the counting chamber so as to cover the space within the moat. This stands for fifteen minutes before counting.and the bacteria in 25 small squares are then counted and an average is obtain...

Hamed Janbaz Hassan Malekinejad, Mazdak Razi, Mohammad Reza Hosseinchi Reza Sayrafi, Sajad Feyzi Seyed Mehdi Moshtagion

Formalin is widely used in industry and in medicine (as tissue fixative and disinfectant).It contains reactive molecules which have been known for its cytotoxic effects. To evaluate the effect of formalin exposure on the testicular tissue and sperm parameter from neonatal period through physical and sexual maturity, 28 male Wister rats were assigned into two equal test and control groups. The t...

Journal: :Scientific Reports 2021

Abstract Cell counting has become an essential method for monitoring the viability and proliferation of cells. A hemacytometer is standard device used to measure cell numbers in most laboratories which are typically automated increase throughput. The principle both manual hemacytometers calculate with a fixed volume within set measurement range (10 5 ~ 10 6 cells/ml). If concentration unknown s...

رضا محمودی, , عظیم هدایت پور, , علیقلی سبحانی, , فریدون سر گلزائی, , محمد اکبری, , محمد بربرستانی, , میترا بختیاری, , پریچهر پاسبخش, ,

Background: Freezing and thawing induce a number of insults to the sperm cells, such as low motility and low fertilization capability. For evaluation of hyaluronan (HA) supplementation on sperm characteristics, we investigated the effect of hyaluronan (HA) on mouse sperm before freezing and after thawing. Methods: For this purpose we removed cauda epididimes from 24 male mice with aseptic meth...

Journal: :Nuclear Instruments and Methods in Physics Research 2023

IDEA (Innovative Detector for an Electron-positron Accelerator) is a general-purpose detector concept, designed to study electron-positron collisions in wide energy range from very large circular leptonic collider. Its drift chamber provide efficient tracking, high precision momentum measurement and excellent particle identification by exploiting the application of cluster counting technique. T...

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