Results 11 to 20 of about 29,378 (245)

Phanerozoic Large Igneous Province, Petroleum System, and Source Rock Links

open access: yesGeophysical Monograph Series, Page 191-228., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Steven C. Bergman   +2 more
wiley  

+1 more source

Genomic Analysis of Inbreeding Depression on Productive Traits in Rubia Galega Beef Cattle Breed. [PDF]

open access: yesJ Anim Breed Genet
ABSTRACT In autochthonous livestock breeds with small populations, such as the Rubia Galega from Galicia (Spain), mating between relatives is common and can lead to inbreeding depression. Genomic inbreeding coefficients were estimated for 4984 animals using ~63,000 SNPs to assess inbreeding depression in four key traits: age at first calving (AFC) with
Mejuto-Vázquez N   +6 more
europepmc   +2 more sources

Arqueología, Tiempo y “Vaca Muerta”

open access: yesRevista del Museo de Antropología, 2021
En este trabajo nos proponemos reflexionar sobre las intervenciones antrópicas que se pueden observar en un área determinada de la cuenca hidrocarburífera de la Provincia de Neuquén (Argentina). Los objetos y espacios en las diversas condiciones materiales y temporales de depositación, construcción o emplazamiento se confrontan como fabricaciones ...
openaire   +5 more sources

Prevalencia de anticuerpos contra diarrea viral bovina en vacas no vacunadas en los estados de Puebla, Tabasco y Veracruz, México

open access: yesRevista Mexicana de Ciencias Pecuarias, 2018
La prevalencia (PRE) de anticuerpos contra diarrea viral bovina (DVB) se determinó en 421 vacas de 24 ranchos ubicados en 11 municipios de los estados de Puebla, Veracruz y Tabasco, México.
Jorge Víctor Rosete Fernández   +7 more
doaj   +1 more source

Construction of a prokaryotic expression system ofvacAgene and detection ofvacAgene, VacA protein inHelicobacter pyloriisolates and ant-VacA antibody in patients’ sera

open access: yesWorld Journal of Gastroenterology, 2004
To construct a recombinant prokaryotic expression vector inserted with Helicobacter pylori vacA gene and identify the immunity of the expressed recombinant protein, and to determine prevalence of vacA-carrying/VacA expressing H pylori isolates and seroprevalence of specific ant-VacA antibody in H pylori infected patients.Polymerase chain reaction ...
Jie, Yan, Ya-Fei, Mao
openaire   +2 more sources

Temporal profile of antimicrobial resistance exhibited by strains of Staphylococcus spp. isolated from cases of bovine mastitis for 20 years (1992-2011)

open access: yesCiência Rural, 2015
Records of in vitro susceptibility tests performed between 1992 and 2011 were retrospectively reviewed in order to evaluate the dynamic profiles of possible changes in antimicrobial resistance of Staphylococcus spp.
Ananda Paula Kowalski   +7 more
doaj   +1 more source

Prevalencia de diversos serovares de Leptospira interrogans en vacas no vacunadas en los estados de Puebla, Tabasco y Veracruz, México

open access: yesRevista Mexicana de Ciencias Pecuarias, 2022
El objetivo fue comparar las prevalencias de anticuerpos contra diferentes serovares de Leptospira interrogans entre los estados de Puebla, Tabasco y Veracruz, así como entre algunos de sus municipios, y determinar si el estatus sanitario de las vacas ...
Jorge Víctor Rosete Fernández   +7 more
doaj   +1 more source

Multi‐Targeting Carnosic Acid Kills Drug‐Resistant Helicobacter pylori With Narrow‐Spectrum Activity

open access: yesAdvanced Science, EarlyView.
Carnosic acid selectively eradicates drug‐resistant Helicobacter pylori through a multi‐targeted mechanism involving urease inhibition, membrane disruption, and biofilm eradication. It exhibits no detectable resistance, potent in vivo efficacy, and minimal impact on gut microbiota, positioning it as a promising narrow‐spectrum lead compound against ...
Yuefan Bai   +7 more
wiley   +1 more source

Hierarquia social e uso de sombra por vacas leiteiras: impacto nos parâmetros fisiológicos e comportamentais [PDF]

open access: yes, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Programa de Pós-Graduação em Agroecossistemas, Florianópolis, 2011As interações entre comportamento social e recursos ambientais, tais como a sombra, podem ...
Pellizzoni, Camila
core  

Efeitos da everminação de matrizes e de bezerros lactentes em sistema de produção de bovinos de corte na região de Cerrado Effects of deworming of cow-calf beef herds in brazilian savannas

open access: yesPesquisa Veterinária Brasileira, 2005
Estudou-se o efeito da everminação de vacas no pré-parto e de bezerros antes do desmame, no número de ovos de nematódeos nas fezes (OPG) e nos parâmetros produtivos em dois rebanhos de gado de corte na região do Brasil Central.
João B. Catto   +2 more
doaj   +1 more source

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