Bovine Resistance
Mostrando 1-12 de 277 artigos, teses e dissertações.
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1. Microwave-Assisted Acid Digestion: Evaluation of Reaction Vessel Design and Performance
Nowadays, microwave-assisted procedures using closed vessels with thermal, chemical, and mechanical resistance are the state-of-the-art for efficient digestion of samples. Safety issues related to sample reactivity should be considered and analytical throughput is also a critical parameter. The choice of a specific vessel for a target application is not triv
J. Braz. Chem. Soc.. Publicado em: 2021-04
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2. Single-Layered Paper-Based Microfluidic Devices Made by Paint-Spraying Technique with Great Barrier Resistance for Colorimetric Assays
The single-layered paint-spraying paper based microfluidic devices (sp-μPADs) have been for the first time integrated with the colorimetric assay. The polymethyl methacrylate (PMMA) board was applied as the mask instead of the iron mask, reducing the power requirement of the cutting machine. The paint was sprayed into the paper, which blocked the pores of t
J. Braz. Chem. Soc.. Publicado em: 2021-03
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3. Techniques for prevention and control of poisoning by sodium monofluoroacetate (MFA)-containing plants in ruminants
RESUMO: As plantas que contém monofluoroacetato (MFA) causam morte súbita associada ao exercício em ruminantes, e são responsáveis por grandes perdas na pecuária brasileira, estimadas em 500.000 mortes de bovinos anualmente. O controle e tratamento desse tipo de intoxicação, na maioria das vezes, não apresenta eficiência, visto que a evolução da
Pesq. Vet. Bras.. Publicado em: 02/12/2019
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4. Bacterial identification, somatic cell count, antimicrobial profile and toxigenic Staphylococcus strains search from mastitic cow milk samples on small farms properties
RESUMO: A mastite bovina impacta negativamente a produção leiteira e pode acarretar riscos à saúde pública. O presente estudo teve como objetivo a avaliação da qualidade do leite bovino proveniente de pequenas propriedades na região de Botucatu/SP. Foi realizada a contagem de células somáticas (CCS), identificação dos patógenos envolvidos nas ma
Pesq. Vet. Bras.. Publicado em: 04/11/2019
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5. Staphylococcus aureus and Streptococcus agalactiae: prevalence, resistance to antimicrobials, and their relationship with the milk quality of dairy cattle herds in Minas Gerais state, Brazil
RESUMO: A mastite bovina é a doença de maior frequência em rebanhos leiteiros em nível mundial, acarretando grandes prejuízos econômicos aos produtores e à indústria. Além disso, esta enfermidade tem implicações na saúde pública, devido ao potencial zoonótico de alguns agentes envolvidos em sua etiologia e por aumentar os riscos de resíduos de
Pesq. Vet. Bras.. Publicado em: 01/07/2019
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6. Staphylococcal slime layers and biofilm from different origins
RESUMO: O gênero Staphylococcus abrange algumas das bactérias patogênicas mais importantes tanto para humanos como para animais. Ele é responsável pela mastite bovina e otite canina, além de estar presente na microbiota de animais e como contaminante em alimentos. Sua patogênese está relacionada à formação de cápsula e biofilme, que contribuem p
Cienc. Rural. Publicado em: 16/05/2019
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7. Volume and/or Time of NaOCl Influences the Fracture Strength of Endodontically Treated Bovine Teeth
Resumo O objetivo desse estudo foi o de avaliar se o aumento de volume e/ou tempo de contato do NaOCl afeta a resistência à fratura de dentes bovinos tratados endodonticamente. Quatro incisivos bovinos de 10 animais foram alocados em 4 grupos usando um desenho experimental de boca dividida. Os canais radiculares foram instrumentados usando uma sequência d
Braz. Dent. J.. Publicado em: 2019-02
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8. Spatial variability of soil physical-hydric attributes under bovine trampling in agreste of Pernambuco State, Brazil
ABSTRACT. Soils under pastures suffer physical modifications, in greater or lesser intensity, via the action of animal trampling. Thus, the aim was to evaluate the spatial dependence of soil physical attributes under bovine trampling. The trial was performed at Roçadinho Farm, Agreste of Pernambuco, Brazil, in a 40 x 40 m paddock that was managed with conti
Acta Sci., Agron.. Publicado em: 17/12/2018
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9. Influence of remaining coronal thickness and height on biomechanical behavior of endodontically treated teeth: survival rates, load to fracture and finite element analysis
Abstract Objective To evaluate the effect of restorative strategy (fiber post vs cast post and core), coronal height (0 mm vs 2 mm) and thickness (higher than 1 mm vs lower than 1 mm) on survival rate, fracture resistance and stress distribution. Material and Methods Seventy-two bovine teeth were cleaned and allocated in six groups (n = 12). Twenty-four te
J. Appl. Oral Sci.. Publicado em: 07/05/2018
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10. Corrosion Resistance Evaluation of HVOF Produced Hydroxyapatite and TiO2-hydroxyapatite Coatings in Hanks' Solution
The electrochemical behavior of HVOF produced hydroxyapatite (HA) and 80HA-20TiO2 coatings were investigated using electrochemical techniques in natural aerated Hanks' solution in the presence and absence of bovine serum albumin (BSA) for 30 days. All samples presented open circuit potential oscillations, which were associated to the porous nature of the coa
Mat. Res.. Publicado em: 22/01/2018
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11. Biofilm production and beta-lactamic resistance in Brazilian Staphylococcus aureus isolates from bovine mastitis
Abstract Staphylococcus spp. play an important role in the etiology of bovine mastitis. Staphylococcus aureus is considered the most relevant species due to the production of virulence factors such as slime, which is required for biofilm formation. This study aimed to evaluate biofilm production and its possible relation to beta-lactamic resistance in 20 S.
Braz. J. Microbiol.. Publicado em: 2017-03
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12. Stable expression of Mycobacterium bovis antigen 85B in auxotrophic M. bovis bacillus Calmette-Guérin
BACKGROUND Bovine tuberculosis (TB) is a zoonotic disease caused by Mycobacterium bovis, responsible for causing major losses in livestock. A cost effective alternative to control the disease could be herd vaccination. The bacillus Calmette-Guérin (BCG) vaccine has a limited efficacy against bovine TB, but can improved by over-expression of protective ant
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-02