Listar Ciencias Biologicas por título
Mostrando ítems 1427-1446 de 3044
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Hordein variation in Brazilian barley varieties (Hordeum vulgare L.) and wild barley (H. euclaston Steud. and H. stenostachys Godr.)
(2000) [Artículo de periódico]No presente trabalho foi utilizada a técnica de eletroforese vertical SDS-PAGE com o objetivo de analisar os padrões de polipeptídeos de hordeína de variedades brasileiras de cevada (Hordeum vulgare L.) e de duas espécies ... -
Host immune responses to salivary components : a critical facet of tick-host interactions
(2022) [Artículo de periódico]Tick sialome is comprised of a rich cocktail of bioactive molecules that function as a tool to disarm host immunity, assist blood-feeding, and play a vibrant role in pathogen transmission. The adaptation of the tick’s ... -
How do distinct facets of tree diversity and community assembly respond to environmental variables in the subtropical Atlantic Forest
(2023) [Artículo de periódico]This study assessed the impact of altitude, precipitation, and soil conditions on species richness (SR), phylogenetic diversity (PD), and functional diversity (FD) standardized effect sizes in subtropical Brazilian Atlantic ... -
How do phages disrupt the structure of Enterococcus faecalis biofilm?
(2023) [Artículo de periódico]Biofilms are composed of multicellular communities of microbial cells and their self-secreted extracellular polymeric substances (EPS). The viruses named bacteriophages can infect and lyze bacterial cells, leading to ... -
How early life stress impact maternal care : a systematic review of rodent studies
(2019) [Artículo de periódico]Background: Maternal care refers to the behavior performed by the dam to nourish and protect her litter during its early development. Frequent and high-quality performance of such maternal behaviors is critical for the ... -
How many species of Mollusca are there in Brazil? A collective taxonomic effort to reveal this still unknown diversity
(2023) [Artículo de periódico]The expression ‘you need to know to conserve’ is a well-known cliche among biologists. Documenting the richness of a group of organisms is the first step towards understanding biodiversity and preparing efficient conservation ... -
How strong was the bottleneck associated to the peopling of the Americas? new insights from multilocus sequence data
(2018) [Artículo de periódico]In spite of many genetic studies that contributed for a deep knowledge about the peopling of the Americas, no consensus has emerged about important parameters such as the effective size of the Native Americans founder ... -
Human mesenchymal stem cells are resistant to cytotoxic and genotoxic effects of cisplatin in vitro
(2016) [Artículo de periódico]Mesenchymal stem cells (MSCs) are known for their important properties involving multilineage differentiation potential, trophic factor secretion and localization along various organs and tissues. On the dark side, MSCs ... -
Human ocular sparganosis in southern Brazil
(2011) [Artículo de periódico]Registra-se o primeiro caso de esparganose ocular humana no estado de Santa Catarina, sul do Brasil a partir de paciente adulta que apresentou três massas inflamatórias móveis perioculares, localizadas no olho direito, ... -
Humanos são intrinsecamente capazes de produzir anticorpos neutralizantes contra o SARS-Cov-2
(2021) [Artículo de periódico] -
Human T-cell lymphotropic virus type II in Guaraní Indians, Southern Brazil
(2005) [Artículo de periódico]O vírus linfotrópico de células T-humanas do tipo II (HTLV-II) é identificado em muitos grupos de ameríndios. No Brasil, tem sido encontrado em indivíduos da população urbana, bem como em índios oriundos da região Amazônica. ... -
Humoral immune response in adult Brazilian patients with mucolipidosis III gamma
(2019) [Artículo de periódico]Mucolipidosis II and III (ML II and III) alpha/beta and ML III gamma are lysosomal diseases caused by GlcNAc-1-phosphotransferase deficiency. Previous data indicate that MLII patients have functionally impaired immune ... -
Hybridization between subterranean tuco-tucos (Rodentia, Ctenomyidae) with contrasting phylogenetic positions
(2020) [Artículo de periódico]Reproductive compatibility usually decreases according to increasing genetic difference and the time of divergence between species. However, the amount of modification required to influence hybridization may vary in different ... -
A hybrid zone of the genus Ctenomys : a case study in southern Brazil
(2012) [Artículo de periódico]We describe variation at microsatellite loci and the chromosomal polymorphisms of a hybrid population, and hybridizing populations of Ctenomys minutus (the minor tuco-tuco) from the coastal plain of Rio Grande do Sul, ... -
Hydrodynamics and suspended sediment transport in the Camboriú Estuary - Brazil : prejetty conditions
(2009) [Artículo de periódico]As trocas de água e materiais através das desembocaduras de estuários são de difícil quantificação e são de fundamental importância para o entendimento do funcionamento de estuários e da zona costeira. A hidrodinâmica e ... -
Hydrography rather than lip morphology better explains the evolutionary relationship between Gymnogeophagus labiatus and G. lacustris in Southern Brazil (Cichlidae: Geophagini)
(2021) [Artículo de periódico]Gymnogeophagus labiatus and G. lacustris have been long recognized as sister species exhibiting different ecological requirements. Gymnogeophagus labiatus occurs in rock bottom rivers in the hydrographic basins of Patos ... -
Hypatropis inermis (Hemiptera, Pentatomidae) : first record on rice crops
(2015) [Artículo de periódico]This study reports for the first time the occurrence of Hypatropis inermis on upland rice crops (variety Cambará), in Novo Progresso, state of Pará, Brazil (707’45.71”S 5523’21.13”W). The inventory of insect pests was ... -
Hypertonic saline and hemorrhagic shock : hepatocellular function and integrity after six hours of treatment
(2005) [Artículo de periódico]Purpose: The comparison after 6h of hemorrhagic shock (HS) treatment with NaCl 7.5% (Hypertonic Saline Solution – SSH) or Ringer Lactate (RL) on liver function and integrity. Methods: Male Wistar rats were submitted to HS ... -
Hyphessobrycon melanopleurus uruguayensis Messner, 1962, an available name and a senior synonym of Cyanocharax macropinna Malabarba & Weitzman, 2003 (Ostariophysi: Characidae)
(2004) [Artículo de periódico]Hyphessobrycon melanopleurus uruguayensis, Astyanacinus platensis e Astyanax stenohalinus, publicados em um trabalho mimeografado por Emil Messner em 1962 são considerados como nomes disponíveis. O nome sub-específico H. ... -
Hypoxia-inducible factor-1α (HIF-1α) inhibition impairs retinoic acid-induced differentiation in SH-SY5Y neuroblastoma cells, leading to reduced neurite length and diminished gene expression related to cell differentiation
(2022) [Artículo de periódico]Neuroblastoma is the most common extracranial solid tumour in childhood, originated from cells of the neural crest during the development of the Sympathetic Nervous System. Retinoids are vitamin-A derived differentiating ...