نتایج جستجو برای: molecular variance

تعداد نتایج: 737436  

Journal: :The Annals of Mathematical Statistics 1958

Journal: :Biophysical Journal 2008
Michelle A. Digman Rooshin Dalal Alan F. Horwitz Enrico Gratton

We describe a technique based on moment-analysis for the measurement of the average number of molecules and brightness in each pixel in fluorescence microscopy images. The average brightness of the particle is obtained from the ratio of the variance to the average intensity at each pixel. To obtain the average number of fluctuating particles, we divide the average intensity at one pixel by the ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده ادبیات و زبانهای خارجی 1392

abstract the current study examined the role of emotional intelligence and motivation on language learning of efl learners in iranian context. the participants of this study were 162 female and 100 male junior high school students. these participants were selected by convenient sampling method. to carry out the study two questionnaires were administered to the participants. first, the adap...

Journal: :Biological research 2009
Lihong Zheng Haiming Sun Jingwei Wang Shilin Li Jing Bai Yan Jin Yang Yu Feng Chen Li Jin Songbin Fu

Y chromosomal STRs show sufficient variability among individduals in a population and a high degree of geographical differentiation, such that their polymorphic character makes them especially suited for population genetic studies. To investígate the polymorphism of a set of 17 Y-STR loci in northern China, we genotyped the 17 Y chromosomal STR loci in a population sample of 377 unrelated males...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده علوم پایه 1389

nowadays, the development of anti cancer drugs is an important subject in pharmacology. bisphosphonates (b.p) are a great choice for design and production of the types of drugs which not only could perform as anti cancer agents but also could inhibit the function of acetyl cholinesterase (ache). ache hydrolyzes the acetylcholine (which is a neurotransmitter in nervous system) using the oh in i...

Journal: :Proceedings. Biological sciences 2008
Francesca D Frentiu Sonya M Clegg John Chittock Terry Burke Mark W Blows Ian P F Owens

Animal models typically require a known genetic pedigree to estimate quantitative genetic parameters. Here we test whether animal models can alternatively be based on estimates of relatedness derived entirely from molecular marker data. Our case study is the morphology of a wild bird population, for which we report estimates of the genetic variance-covariance matrices (G) of six morphological t...

Abbas Hassani Mahdieh Modareskia Maryam Kholghi Reza Darvishzadeh

Study of genetic relationships is a prerequisite for plant breeding activities as well as for conservation of genetic resources. In the present study, genetic diversity among and within 15 Iranian native Ajowan(Carum copticum L.) populations were determined using inter simple sequence repeat (ISSR) markers. Twelve selected primers produced 153 discernible bands, with 93 (60.78%) being ...

Journal: :علوم باغبانی ایران 0
زهرا کریمی نافچی دانشکده کشاورزی دانشگاه صنعتی اصفهان، کارشناسی ارشد بدرالدین ابراهیم سید طباطبایی دانشکده کشاورزی دانشگاه صنعتی اصفهان، استاد مصطفی مبلی دانشکده کشاورزی دانشگاه صنعتی اصفهان، استاد

to study the genetic relationships among iranian onion landraces and to compare them with those in some foreign cultivars, fifteen microsatellite (ssr) primer pairs were employed. based upon the results of the obtained band pattern, 12 pairs of ssr primers in 18 onion landraces and five foreign cultivars form a polymorphic and scorable pattern. there were two to six alleles with an average of 3...

1997
Donald B. Percival David A. Howe

Given a sequence of fractional frequency deviates, we investigate the relationship between the sample variance of these deviates and the total variance (Totvar) estimator of the Allan variance. We demonstrate that we can recover exactly twice the sample variance by renormalizing the Totvar estimator and then summing it over dyadic averaging times 1, 2, 4, . . . , 2 along with one additional ter...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یاسوج - دانشکده علوم 1391

in this investigation the effect of external field on the electron density of nanostructures of cds, cdse, cdte, gaas and polymeric structure of three, four, five and six units of cds as a kind of nanosolar cells has been studied theoretically. as modeling this system in nanodimension, molecular structures has used. specific properties of molecular structures permit us to consider different sym...

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