Results 11 to 20 of about 142,627 (349)

Interacting-Holstein and extended-Holstein bipolarons [PDF]

open access: yesPhysical Review B, 2014
7 pages, 7 figures, accepted for publication in Phys.
Chakraborty, M, Tezuka, M, Min, BI
openaire   +3 more sources

A note on a Holstein construction [PDF]

open access: yesHomology, Homotopy and Applications, 2020
We clarify details and fill certain gaps in the construction of a canonical Reedy fibrant resolution for a constant simplicial DG-category due to Holstein.
Arkhipov, Sergey, Poliakova, Daria
openaire   +5 more sources

Survival, lifetime production, and profitability of Normande × Holstein, Montbéliarde × Holstein, and Scandinavian Red × Holstein crossbreds versus pure Holsteins [PDF]

open access: yesJournal of Dairy Science, 2012
Pure Holstein (HO) cows (n=416) were compared with Normande (NO) × HO (n=251), Montbéliarde (MO) × HO (n=503), and Scandinavian Red (SR) × HO (n=321) crossbred cows for survival, lifetime production, and profitability in 6 commercial herds in California. The SR crossbred cows were sired by both Swedish Red and Norwegian Red bulls. Cows calved from June
B J, Heins, L B, Hansen, A, De Vries
openaire   +2 more sources

Holstein polaron [PDF]

open access: yesPhysical Review B, 1999
We describe a variational method to solve the Holstein model for an electron coupled to dynamical, quantum phonons on an infinite lattice. The variational space can be systematically expanded to achieve high accuracy with modest computational resources (12-digit accuracy for the 1d polaron energy at intermediate coupling).
Bonča, Janez   +2 more
openaire   +4 more sources

Seasonality in resumption of ovarian activity and reproductive performance of postpartum Holstein cows

open access: yesThe Journal of Reproduction and Development, 2022
It has been suggested that domestication has turned cattle from seasonal breeders to annual breeders. This study examined the seasonal differences in early postpartum ovulation and subsequent reproductive performance in 542 Holstein cows. Cows displaying
Minoru SAKAGUCHI   +2 more
doaj   +1 more source

Integrated Small RNA Sequencing, Transcriptome and GWAS Data Reveal microRNA Regulation in Response to Milk Protein Traits in Chinese Holstein Cattle

open access: yesFrontiers in Genetics, 2021
Milk protein is one of the most important economic traits in the dairy industry. Yet, the regulatory network of miRNAs for the synthesis of milk protein in mammary is poorly understood.
Wentao Cai   +6 more
doaj   +1 more source

Prospects of modernization of cattle breeding processes [PDF]

open access: yesBIO Web of Conferences, 2023
The development of livestock in industrialized nations has shown that when breeding activity is well-organized, it is feasible to enhance breeds and quickly boost output.
Dosmukhamedova Mukhayo   +1 more
doaj   +1 more source

Body Condition Score and Milk Production on Conception Rate of Cows under a Small-Scale Dairy System

open access: yesAnimals, 2019
Management and production characteristics impact conception rate to first service (CR1S) in small-scale dairy farms, but the impact of body condition score (BCS) and milk production levels on cows’ fertility is unknown.
Luis Javier Montiel-Olguín   +6 more
doaj   +1 more source

Relaxation Dynamics of the Holstein Polaron [PDF]

open access: yesPhysical Review Letters, 2012
Keeping the full quantum nature of the problem we compute the relaxation time of the Holstein polaron after it was driven far from the equilibrium by a strong oscillatory pulse. Just after the pulse the polaron's kinetic energy increases and subsequently exhibits relaxation type decrease with simultaneous emission of phonons.
Golež, Denis   +3 more
openaire   +3 more sources

Effect of leptin gene polymorphism on the breeding value of milk production traits in Iranian Holstein

open access: yesAnimal, 2008
New molecular techniques focused on genome analysis, open new possibilities for more accurate evaluation of economiclly important traits in farm animals.
M. Sadeghi   +3 more
doaj   +1 more source

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