نتایج جستجو برای: genetic trends

تعداد نتایج: 760986  

Journal: :Journal of dairy science 2004
M A Elzo A Jara N Barria

Estimates of additive and nonadditive multibreed co-variance components, genetic parameters, and predicted genetic values for first lactation 305-d mature equivalent (ME) milk yield, fat yield, and protein yield were computed using data from a sample of 3316 cows from the Chilean Holstein-other breeds multibreed population. Variances and covariances were estimated by 2-trait REML analyses using...

Journal: :Genetics and molecular research : GMR 2006
M G C D Peixoto R S Verneque R L Teodoro V M Penna M L Martinez

Genetic trends for 305-day milk yield (P305) in Brazilian Guzerat herds under selection were compared. Data from 4898 lactations of 3179 purebred and crossbred cows from various regions of Brazil were used. Milk yield was adjusted for mature age and the contemporary groups were defined as herd and calving year. Genetic parameters were estimated using the MTDFREML program. The model included the...

Journal: :Journal of animal science 2007
A Rosendo T Druet J Gogué L Canario J P Bidanel

Effects of selection for reproductive traits were estimated using data from 3 pig lines derived from the same Large White population base. Two lines were selected for 6 generations on high ovulation rate at puberty (OR line) or high prenatal survival corrected for ovulation rate in the first 2 parities (PS line). The third line was an unselected control line. Genetic parameters for age and BW a...

Journal: :Inf. Res. 2004
Mark Notess

The Variations and Variations2 digital music library projects at Indiana University provide a valuable test-bed for user studies. We have used user satisfaction questionnaires, session logging, and contextual inquiry to study digital music library usage by music students. This paper describes our approach with each method and offers a comparison of cost, advantages, and disadvantages of each me...

Journal: :Journal of health psychology 2018
Amber S Emanuel Jennifer L Howell Jennifer M Taber Rebecca A Ferrer William Mp Klein Peter R Harris

Emerging evidence suggests that individuals spontaneously self-affirm, by reflecting on values and strengths, in response to daily threats. We examined the prevalence and demographic and well-being correlates of spontaneous self-affirmation in the general population. Participants ( n = 3185) completed the cross-sectional, nationally representative 2013 Health Information National Trends Survey ...

2005
Marco Fumagalli Rosa Lancini

Video transcoding is a mechanism to convert video bit−streams from one coding format to other formats. In this operation, the computational complexity and picture quality are the two most important concerns. MPEG−7 standard defines media Transcoding Hints (THs) in order to both reduce the complexity and improve the visual quality during transcoding process. The basic assumption is that THs are ...

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2010
Erin Kobetz Angela Dunn Mendoza Janelle Menard Lila Finney Rutten Joshua Diem Betsy Barton Julie Kornfeld Nathalie McKenzie

BACKGROUND Historically, all black persons, regardless of ancestry or country of origin, have been categorized as one group for cancer research and control efforts. This practice likely masks variability in exposure to determinants of disease, as well as in risk of cancer incidence and mortality. The current study examines potential differences in knowledge of human papilloma virus (HPV) betwee...

2002
Ethelene Whitmire Helen C. White

This study investigated the relationship between an institution’s academic library performance measures and undergraduates’ library use and educational outcomes. The sample consisted of 7,958 undergraduates attending 36 colleges and universities representing four institutional types. Regression analyses determined the relationship between academic library performance measures and library use an...

Journal: :Journal of risk and financial management 2022

This paper addresses the problem of forecasting daily stock trends. The key consideration is to predict whether a given will close on uptrend tomorrow with reference today’s closing price. We propose model that comprises features selection model, based Genetic Algorithm (GA), and Random Forest (RF) classifier. In our study, we consider four international indices follow concept distributed lag a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کردستان - دانشکده کشاورزی و منابع طبیعی 1386

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