نتایج جستجو برای: bulls and bears markets

تعداد نتایج: 16836763  

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 1989
J Nuyts L Mortelmans P Suetens A Oosterlinck M de Rou

A system for quantitative analysis of myocardial perfusion tomograms is proposed. The system starts with an automated delineation of the total left ventricle, including possible perfusion defects, to determine the mass and shape of the myocardium. Next, polar maps or bulls-eyes are computed from the delineation, which can then be compared to reference bulls-eyes to detect perfusion defects. The...

Journal: :General and comparative endocrinology 2007
Janine L Brown Malia Somerville Heidi S Riddle Mike Keele Connie K Duer Elizabeth W Freeman

Concentrations of serum testosterone, cortisol, thyroxine (free and total T4), triiodothyronine (free and total T3) and thyroid stimulating hormone (TSH) were measured to assess adrenal and thyroid function as they relate to testicular activity and musth in captive elephants. Blood samples were collected approximately weekly from Asian (n=8) and African (n=12) bulls at seven facilities for peri...

Journal: :Journal of dairy science 2015
G R Wiggans G Su T A Cooper U S Nielsen G P Aamand B Guldbrandtsen M S Lund P M VanRaden

The effect on prediction accuracy for Jersey genomic evaluations of Danish and US bulls from using a larger reference population was assessed. Each country contributed genotypes from 1,157 Jersey bulls to the reference population of the other. Data were separated into reference (US only, Danish only, and combined US-Danish) and validation (US only and Danish only) populations. Depending on trai...

Journal: :Reproduction in domestic animals = Zuchthygiene 2008
M A R Siddiqui J Bhattacharjee Z C Das M M Islam M A Islam M A Haque J J Parrish M Shamsuddin

Shortening age at puberty of crossbred breeding bull is an important issue in the tropics. This study aimed at selecting crossbred bulls at earliest possible age with bigger scrotum and potential for donating quality semen. One hundred and 31 pre-joining crossbred bulls of Central Artificial Insemination Laboratory, Saver, Dhaka were examined. The bulls being trained by seeing semen collection ...

2006
DIRK DANNENBERGER KARIN NUERNBERG GERD NUERNBERG KLAUS ENDER

Many factors affect ruminant carcass and meat quality, and among the genetic and environmental factors, feeding plays an important role in the determination of quality. In a large study, sixty-four German Holstein and German Simmental bulls were randomly allocated to either an indoor concentrate feeding system or periods of pasture feeding following by a finishing period. During this period the...

2001
Muhammad Tariq Javed Ahrar Khan Mumtaz Ali

Sixteen buffalo bulls (Bubalus bubalis) were divided into four age groups, four bulls in each. Bulls in three groups had good semen quality while in one group it was poor. The study was undertaken for a one-year period divided into five seasons. The study revealed an overall seminal plasma testosterone concentration of 0.97±0.12 ng/ml. It was higher (P<0.05) in the 6-10-year-olds, less than 5 a...

Journal: :Reproduction 2003
H Jiménez-Severiano M J D'Occhio D D Lunstra M L Mussard J W Koch L R Ehnis W J Enright J E Kinder

Administration of GnRH agonist for an extended period inhibits pulsatile LH release but enhances testicular function of bulls. The mechanism whereby long-term administration of GnRH agonist enhances testosterone concentration in the blood of bulls has not been determined. The aim of this study was to determine whether chronic treatment with the GnRH agonist, azagly-nafarelin, increases blood co...

2001
Hyong Kym Seo-Young Kwon

Although E-Commerce has marketability as well as usefulness, there are few empirical research on consumer acceptance, explained by economic theory. This paper suggests that the consumer product acceptance is determined by the difference of transaction cost and some other factors, such as uncertainty and asset specificity. In addition, it suggests that the characteristics of digital products may...

2016
Marie Auger-Méthé Chris Field Christoffer M. Albertsen Andrew E. Derocher Mark A. Lewis Ian D. Jonsen Joanna Mills Flemming

State-space models (SSMs) are increasingly used in ecology to model time-series such as animal movement paths and population dynamics. This type of hierarchical model is often structured to account for two levels of variability: biological stochasticity and measurement error. SSMs are flexible. They can model linear and nonlinear processes using a variety of statistical distributions. Recent ec...

2015
Andrew C. R. Braid Scott E. Nielsen Stephanie S. Romanach

As the influence of human activities on natural systems continues to expand, there is a growing need to prioritize not only pristine sites for protection, but also degraded sites for restoration. We present an approach for simultaneously prioritizing sites for protection and restoration that considers landscape patterns for a threatened population of grizzly bears (Ursus arctos) in southwestern...

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