نتایج جستجو برای: incubation experiment

تعداد نتایج: 497217  

Journal: :international journal of reproductive biomedicine 0
farid barati ahmad ali papahn mahsa afrough mohammad barati

background: control of the medium osmolarity and temperature during long or short time sperm manipulation is essential. objective: the objectives of the present study were to find the effects of different osmolarities of modified tyrode's solution and milk on the bull sperm during incubation at above zero temperatures. materials and methods: semen samples were collected twice from five najdi bu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1393

this thesis attempts to measure learning styles, self efficacy and intrinsic motivation as predictors of iranian ielts reading comprehension. in order to address this issue, a quantitative study was conducted on some randomly selected intact students at ferdowsi university. these two groups were assigned as they were undergraduate (ba=91) and graduate (ma =74) students; they were all aged betwe...

2017
Young Nam Oh Sung Han Kim

On June 14, 2008 (the first experiment) and July 24, 2008 (the second experiment), the shores of the Boseong River and the sandy beaches, Seokgok-myun, Moksadong-myun, Gokseong-gun in Jeollanam Province were investigated and a total of 29 soft-shelled turtle (Tryonyx sinensis) eggs in the natural spawning nest eggs were collected (13 eggs were collected in the first experiment and 16 eggs in th...

2017
Beatriz González-Domínguez Mirjam S Studer Frank Hagedorn Pascal A Niklaus Samuel Abiven

Laboratory soil incubations provide controlled conditions to investigate carbon and nutrient dynamics; however, they are not free of artefacts. As carbon and nitrogen cycles are tightly linked, we aimed at investigating whether the incubation-induced accumulation of mineral nitrogen (Nmin) biases soil organic carbon (SOC) mineralisation. For this, we selected two soils representative of the C:N...

A. Aghajanzadeh-Golshani A. Ghorbani, N. Maheri-Sis, R. Salamat Doust-Nobar Y. Ebrahimnezhad

The present study was conducted to investigate the possibility of using a modified in vitro gas production technique in place of the nylon bag method to estimate protein degradability of alfalfa hay in ruminants. In the in situ experiment dacron bags were filled with 3 g alfalfa hay. This was incubated in the rumen of three ruminally cannulated Ghezel rams for the periods of 0, 2, 4, 8, 12, 16,...

Journal: :تحقیقات دامپزشکی 0
خسرو حسینی پژوه پژوهشکده بیوتکنولوژی، سازمان پژوهش های علمی وصنعتی ایران، تهران–ایران پرویز تاجیک گروه علوم درمانگاهی، دانشکده دامپزشکی دانشگاه تهران، تهران–ایران مرتضی کریمی پور گروه پزشکی مولکولی، موسسه پاستور تهران، تهران–ایران مهدی بهدانی گروه پزشکی مولکولی، موسسه پاستور تهران، تهران–ایران سید مجتبی داودی دانش آموخته، دانشکده دامپزشکی دانشگاه تهران، تهران–ایران

background: as we all know, sperm has the capacity to take up foreign dna, therefore, sperm mediated gen transfer can be an inexpensive and simple method in animal transgenesis in various species. however, there is not sufficient evidence of dna uptake by ovine spermatozoa. objectives: the purpose of the present study was to examine the uptake of human lysozyme gene contained plasmid (pegfp-ire...

Journal: :Journal of Plant Nutrition and Soil Science 2022

Background Soil microbes are key drivers of carbon (C) and nutrient cycling in terrestrial ecosystems, their properties influenced by the relationship between resource demand availability. Aims Our objective was to investigate patterns microbial controls understand whether they differ soils derived from geochemically contrasting parent material tropical montane forests. Methods We measured biom...

1994
Jean-Pierre Courtiat Roberto C. de Oliveira

| The paper deals with the formal speciication of a general-purpose multimedia synchronization mechanism, known as the conditional delivery mechanism capable of addressing both intra-and inter-stream synchronization issues. The proposed mechanism, initially introduced in 3, 11], is based on the identiication of causal relations among information units of one or several streams and has the purpo...

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