Navegação Ciências Biológicas por Título
Resultados 2491-2510 de 3081
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Resposta ao trabalho de Kent e Santos : "'Os Charruas vivem' nos gaúchos : a vida social de uma pesuisa de 'resgate' genético de uma etnia indígena extinta no sul do Brasil
(2012) [Artigo de periódico]Este artigo explora a articulação entre uma pesquisa de ancestralidade genética e a construção social de identidades étnicas no Rio Grande do Sul. Isso é feito através da análise da vida social de um projeto de pesquisa ... -
Resposta hematológica, respiratória e cardiocirculatória de equinos submetidos a três protocolos de indução anestésica
(2000) [Artigo de periódico]O presente trabalho investigou os efeitos hematológicos, respiratórios e cardiocirculatórios de equinos PSI submetidos a três diferentes protocolos de indução anestésica. Os grupos (GI, G2 e G3), constituídos de 10 animais ... -
Resposta pulpar frente a agressões : lesões inflamatórias
(2004) [Artigo de periódico] -
Respostas ao pastejo ou exclusão podem ser caracterizados por tipos funcionais ?
(2014) [Artigo de periódico]O trabalho foi desenvolvido no Centro de Pesquisa de Forrageiras, da FEPAGRO, em São Gabriel, RS, numa área de pastagem natural, de janeiro de 1998 a dezembro de 2000, com o objetivo de defi nir tipos funcionais para os ... -
Respostas da comunidade zooplanctônica à formação do reservatório de Dona Francisca, Rio Grande do Sul, Brasil
(2012) [Artigo de periódico]Nós investigamos as mudanças na riqueza, densidade e composição da comunidade zooplanctônica em resposta à formação de um reservatório na área da usina hidrelétrica Dona Francisca. Amostras de zooplâncton foram coletadas ... -
Respostas de tipos funcionais de plantas à intensidade de pastejo em vegetação campestre
(2004) [Artigo de periódico]O objetivo deste trabalho foi identificar respostas da vegetação campestre, caracterizada por espécies e tipos funcionais de planta, a diferentes intensidades de pastejo. O levantamento da vegetação, usando quadros de 0,25 ... -
Restoration of abandoned subtropical highland grasslands in Brazil : mowing produces fast effects, but hay transfer does not
(2019) [Artigo de periódico]Subtropical Campos Sulinos grasslands, in South Brazil, are among the most biodiverse grasslands of the world. As climatic conditions lead to high productivity, disturbance are critical to maintain their diversity. Long-term ... -
Restriction-modification systems in Mycoplasma ssp
(2007) [Artigo de periódico]Restriction and Modification (R-M) systems are present in all Mycoplasma species sequenced so far. The presence of these genes poses barriers to gene transfer and could protect the cell against phage infections. The number ... -
Resveratrol abrogates the Temozolomide-induced G2 arrest leading to mitotic catastrophe and reinforces the Temozolomide-induced senescence in glioma cells
(2013) [Artigo de periódico]Background: Temozolomide (TMZ) is the most widely used drug to treat glioblastoma (GBM), which is the most common and aggressive primary tumor of the Central Nervous System and one of the hardest challenges in oncotherapy. ... -
Resveratrol and resveratrol-hydroxypropyl-β-cyclodextrin complex recovered the changes of creatine kinase and Na+, K+-ATPase activities found in the spleen from streptozotocin-induced diabetic rats
(2019) [Artigo de periódico]Type 1 diabetes (T1D) is the result of the selective destruction of the pancreatic β-cells by T cells of the immune system. Although spleen is a secondary lymphoid organ, it is also involved in the T1D pathogenesis. However, ... -
Resveratrol derivatives as potential treatments for Alzheimer's and Parkinson's disease
(2020) [Artigo de periódico]Neurodegenerative diseases are characterized by the progressive loss of neurons in different regions of the nervous system. Alzheimer’s disease (AD) and Parkinson’s disease (PD) are the two most prevalent neurodegenerative ... -
Resveratrol prevents ammonia toxicity in astroglial cells
(2012) [Artigo de periódico]Ammonia is implicated as a neurotoxin in brain metabolic disorders associated with hyperammonemia. Acute ammonia toxicity can be mediated by an excitotoxic mechanism, oxidative stress and nitric oxide (NO) production. ... -
Resveratrol prevents cellular and behavioral sensory alterations in the animal model of autism induced by valproic Acid
(2018) [Artigo de periódico]Autism spectrum disorder (ASD) is characterized by impairments in both social communication and interaction and repetitive or stereotyped behaviors. Although its etiology remains unknown, genetic and environmental risk ... -
Resveratrol prevents cytoarchitectural and interneuronal alterations in the valproic acid rat model of autism
(2022) [Artigo de periódico]Autism spectrum disorder (ASD) is a prevalent neurodevelopmental disorder characterized by several alterations, including disorganized brain cytoarchitecture and excitatory/inhibitory (E/I) imbalance. We aimed to analyze ... -
Resveratrol protects C6 astrocyte cell line against hydrogen peroxide-induced oxidative stress through heme oxygenase 1
(2013) [Artigo de periódico]Resveratrol, a polyphenol presents in grapes and wine, displays antioxidant and anti-inflammatory properties and cytoprotective effect in brain pathologies associated to oxidative stress and neurodegeneration. In previous ... -
Retenção e disponibilidade de água às plantas, em solo sob plantio direto e preparo convencional
(2009) [Artigo de periódico]Teve-se, neste trabalho, como função principal, avaliar a retenção de água no solo e sua disponibilidade às plantas, em plantio direto (PD) e preparo convencional (PC). O estudo foi conduzido em Eldorado do Sul, Brasil, ... -
Retinoblastoma in a pediatric oncology reference center in southern brazil
(2016) [Artigo de periódico]Background: Retinoblastoma (Rb) is the most common intraocular tumor diagnosed in children in Brazil. However, detailed information is lacking regarding patient clinical demographics. This study aimed to determine the ... -
Retinol-induced changes in the phosphorylation levels of histones and high mobility group proteins from sertoli cells
(2000) [Artigo de periódico]Chromatin proteins play a role in the organization and functions of DNA. Covalent modifications of nuclear proteins modulate their interactions with DNA sequences and are probably one of the multiple factors involved in ... -
A retrospective analysis of scientific publications on the deep sea from 1987 to 2016
(2019) [Artigo de periódico]The deep sea remains the least known biome. Despite this fact, anthropic activities have affected these regions in various ways. The objective of this study was to outline the scientific production scenario based on deep ... -
A retrospective study of small animal poisoning at the Veterinary Medical Teaching Hospital from South Region of Brazil
(2018) [Artigo de periódico]Background: Poisoning cases are a challenge for the veterinary practitioner, since many agents can be involved. The incomplete patient history associated with advanced poisoning stage often leads to death. Since lacking ...