Navegação Ciências Biológicas por Título
Resultados 1631-1650 de 3020
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Labeling the oily core of nanocapsules and lipid-core nanocapsules with a triglyceride conjugated to a fluorescent dye as a strategy to particle tracking in biological studies
(2014) [Artigo de periódico]The synthesis of novel fluorescent materials represents a very important step to obtain labeled nanoformulations in order to evaluate their biological behavior. The strategy of conjugating a fluorescent dye with triacylglycerol ... -
Lack of association between genetic polymorphisms in IGF1 and IGFBP3 with twin births in a Brazilian population (Cândido Godói, Rio Grande do Sul)
(2018) [Artigo de periódico]Insulin-like growth factor (IGF-1) is an important peptide hormone involved in the reproduction and fetal development of mammals, and it is suggested that it may influence the human twinning rate. This study aimed to test ... -
Lack of support for the association between facial shape and agression : a reappraisal based on a worldwide population genetics perspective
(2013) [Artigo de periódico]Antisocial and criminal behaviors are multifactorial traits whose interpretation relies on multiple disciplines. Since these interpretations may have social, moral and legal implications, a constant review of the evidence ... -
La educación superioren la literatura académica de América Latina : características de un campo multidisciplinario
(2024) [Artigo de periódico]Introducción:La educación superior es uncampo en desarrollo a nivel mundial y en América Latina. Objetivo:Este artículo analiza el desarrollo del campo en la región a partir de la literatura académica. Metodología:Con un ... -
Land cover and conservation state of a region in the southern limit of the Atlantic Forest (River Maquiné Basin, Rio Grande do Sul, Brazil)
(2004) [Artigo de periódico]O estado de conservação da Mata Atlântica na bacia do rio Maquiné foi avaliado com base em dados de uso do solo. As categorias de uso do solo foram identificadas a partir de uma imagem do satélite Landsat TM 5, de outubro ... -
Landscape and climatic features drive genetic differentiation processes in a South American coastal plant
(2021) [Artigo de periódico]Background: Historical and ecological processes shape patterns of genetic diversity in plant species. Colonization to new environments and geographical landscape features determine, amongst other factors, genetic diversity ... -
Landslide hazard mapping, DNA damage induced by sucrose and the biotechnology potential of sponge-associated bacteria communities
(2017) [Texto de apresentação/encerramento] -
Land use explains the distribution of threatened new world amphibians better than climate
(2013) [Artigo de periódico]Background: We evaluated the direct and indirect influence of climate, land use, phylogenetic structure, species richness and endemism on the distribution of New World threatened amphibians. Methodology/Principal Findings: ... -
Larvicidal effect of dried leaf extracts from Pinus caribaea against Aedes aegypti (Linnaeus, 1762) (Diptera : Culicidae)
(2009) [Artigo de periódico]Neste trabalho foi avaliada pela primeira vez a atividade larvicida contra Aedes aegypti de extratos obtido a partir de folhas secas de Pinus caribae. Os extratos de Pinus caribaea foram obtidos a partir da maceração de ... -
L-Asparagine crystals with wide gap semiconductor features : optical absorption measurements and density functional theory computations
(2014) [Artigo de periódico]Results of optical absorption measurements are presented together with calculated structural, electronic, and optical properties for the anhydrous monoclinic L-asparagine crystal. Density functional theory (DFT) within the ... -
Late Cretaceous ostracods from the central area of the Potiguar Basin, Northeastern Brazil
(2020) [Artigo de periódico] -
Late hyaluronidase injection in local anesthesia : morphofunctional evaluation in rat sciatic nerve block
(2019) [Artigo de periódico]Introduction: Despite the enhancing effects of hyaluronidase (HYAL) over duration of anesthesia, this enzyme could cause adverse effects when injected concomitantly with local anesthetics in dental blocks. Objective: This ... -
Leaf anatomy of Araucaria angustifolia(Bertol.) Kuntze (Araucariaceae)
(2003) [Artigo de periódico]Immature and mature leaves of juvenile and adult plants of Araucaria angustifolia (Araucariaceae) were observed with the objective of updating the morphoanatomical data of the leaves of this species, which were restricted ... -
Lean mass and associated factors in women with PCOS with different phenotypes
(2023) [Artigo de periódico]Although current evidence suggests increased risk of obesity, insulin resistance, and meta- bolic alterations in patients with polycystic ovary syndrome (PCOS), especially of a hyperan- drogenic phenotype, the impact of ... -
LEI0258 microsatellite variability and its relationship to B-F haplotypes in Brazilian (blue-egg Caipira) chickens
(2005) [Artigo de periódico]A total of 149 chickens from two different sources (one non-commercial, the other commercial) was tested for variability of the LEI0258 microsatellite. Fifty- three genotypes, explainable by 15 alleles, were found. There ... -
Leprosy in southern Brazil : a twenty-year epidemiological profile
(2017) [Artigo de periódico]Introduction: This study evaluated leprosy rates in Rio Grande do Sul, an area with a historically low prevalence. However, recent studies are lacking. Methods: Data extracted from a National Database were analyzed for ... -
Leptin and adiponectin in the female life course
(2011) [Artigo de periódico]Adipose tissue secretes a variety of adipokines, including leptin and adiponectin, which are involved in endocrine processes regulating glucose and fatty metabolism, energy expenditure, inflammatory response, immunity, ... -
Leptin receptor co-expression gene network moderates the effect of early life adversity on eating behavior in children
(2022) [Artigo de periódico]Leptin influences eating behavior. Exposure to early adversity is associated with eating behaviour disorders and metabolic syndrome, but the role of the leptin receptor on this relationship is poorly explored. We investigated ... -
Lesion of the subthalamic nucleus reverses motor deficits but not death of nigrostriatal dopaminergic neurons in a rat 6-hydroxydopamine-lesion model of Parkinson's disease
(2010) [Artigo de periódico]The objective of the present study was to determine whether lesion of the subthalamic nucleus (STN) promoted by N-methyl- D-aspartate (NMDA) would rescue nigrostriatal dopaminergic neurons after unilateral 6-hydroxydopamine ...