Navegação Ciências Biológicas por Título
Resultados 1608-1627 de 3025
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Is biodiesel a more social fuel than ethanol? a comparative analysis from public policies in Brazil
(2012) [Artigo de periódico]As a promising source of renewable energy, biodiesel has received incentives through public policies in various countries. While some countries have adopted policies based on economic incentives for production and consumption, ... -
Ischemic preconditioning reduces peripheral oxidative damage associated with brain ischemia in rats
(1999) [Artigo de periódico]Brain ischemia followed by reperfusion causes neuronal death related to oxidative damage. Furthermore, it has been reported that subjects suffering from ischemic cerebrovascular disorders exhibit changes in circulating ... -
ISCOM-like nanoparticles formulated with Quillaja brasiliensis Saponins are promising adjuvants for seasonal influenza vaccines
(2021) [Artigo de periódico]Vaccination is the most effective public health intervention to prevent influenza infections, which are responsible for an important burden of respiratory illnesses and deaths each year. Currently, licensed influenza ... -
Is evolution faster at ecotones? A test using rates and tempo of diet transitions in Neotropical Sigmodontinae (Rodentia, Cricetidae)
(2021) [Artigo de periódico]We evaluated whether evolution is faster at ecotones as niche shifts may be needed to persist under unstable environment. We mapped diet evolution along the evolutionary history of 350 sigmodontine species. Mapping was ... -
Is intrauterine exposure to acetaminophen associated with emotional and hyperactivity problems during childhood? : findings from the 2004 Pelotas birth cohort
(2018) [Artigo de periódico]Background: Longitudinal studies have consistently reported that prenatal exposure to acetaminophen can to lead to an increased risk of attention deficit-hyperactivity disorder during childhood. This study aimed to investigate ... -
Is it necessary to perform occupational audiometric testing at 6-months of employment?
(2022) [Artigo de periódico]Introduction: Current Brazilian legislation requires that all workers exposed to noise are to be given an audiogram upon hiring, after 6 months of employment (first periodic test), and annually after the first periodic ... -
Isoenzymatic polymorphisms in urban populations of Drosophila willistoni
(2001) [Artigo de periódico]Natural populations of Drosophila willistoni collected both in urban sites and in the wild, as control, were analysed with respect to their isoenzyme polymorphisms in six loci of enzyme systems, through horizontal ... -
Isoenzyme variation in the leaf-cutting ants Acromyrmex heyeri and Acromyrmex striatus (Hymenoptera: formicidae)
(2002) [Artigo de periódico]This is the first study of isoenzyme variability in the leaf-cutting ants (Myrmicinae, Attini) Acromyrmex heyeri (Forel, 1899) and A. striatus (Roger, 1863) which are common throughout the southern Brazilian state of Rio ... -
Isoflurane and the analgesic effect of acupuncture and electroacupuncture in an animal model of neuropathic pain
(2018) [Artigo de periódico]The present study aimed to determine whether isoflurane interferes with the analgesic effects of acupuncture (Ac) and electroacupuncture (EA), using a neuropathic pain (NP) rat model. In total, 140 male Wistar rats were ... -
Isolamento do vírus Parainfluenza bovino tipo 3 no Rio Grande do Sul, Brasil : relato de caso
(2003) [Artigo de periódico]É descrito o isolamento do vírus Parainfluenza bovino tipo 3 (bPI-3) a partir de secreções nasais coletadas de um bovino com infecção respiratória. A identificação do agente foi realizada através de isolamento em cultivo ... -
Isolamento e identificação de amebas de vida livre potencialmente patogênicas em amostras de ambientes de hospital público da cidade de Porto Alegre-RS
(2007) [Artigo de periódico]Um estudo sobre a presença de amebas de vida livre em um hospital público foi desenvolvido na Cidade de Porto Alegre, RS. Poeira e biofilmes de 15 ambientes hospitalares, incluindo CTI, UTI pediátrica, cozinha, emergência, ... -
Isolamento e seleção de micro-organismos resistentes e capazes de volatilizar mercúrio
(2011) [Artigo de periódico]Mercury (Hg) occurs in the environment as a natural and anthropogenic element, and through the years the accumulation of mercury has affected the integrity of ecosystems and human health. This study presents a screening ... -
Isolated cutaneous lesions in paracoccidioidomycosis : a suggestive case of acquisition through cutaneous inoculation
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Isolated soy protein-based diet ameliorates glycemia and antioxidants enzyme activities in streptozotocin-induced diabetes
(2014) [Artigo de periódico]The objective of this study was to evaluate the changes induced by isolated soy protein (ISP)-based diet on glycemia and oxidative stress biomarkers in diabetic rats. Fifteen male Wistar rats (35 ± 4 g, aged 21 days) were ... -
Isolation and characterization of mesenchymal stem/stromal cells from Ctenomys minutus
(2018) [Artigo de periódico]Mesenchymal stem/stromal cells (MSCs) are multipotent cells distributed in all tissues and characterized by adherence, morphology, immunophenotype and trilineage differentiation potential. The present study aimed to isolate ... -
Isolation and characterization of microsatellite markers for Passiflora contracta
(2012) [Artigo de periódico]Passiflora contracta Vitta (Passifloraceae) is an endemic species of the Atlantic Rainforest, one of the most species-rich ecoregions in the world, although extremely endangered. We have developed an enriched microsatellite ... -
Isolation and characterization of microsatellites from the tapeworm Echinococcus granulosus
(2003) [Artigo de periódico]The Echinococcus granulosus genome was searched for microsatellites using 8 different repeated oligonucleotides as probes (GT15, CT15, AT15, CG15, CAT10, CAA10, CGG10 and CATA10). Southern blot experiments revealed that ... -
Isolation and characterization of two plant growth-promoting bacteria from the rhizoplane of a legume (Lupinus albescens) in sandy soil
(2010) [Artigo de periódico]Duas linhagens bacterianas que apresentaram amplificação de parte do gene nifH, RP1p e RP2p, pertencentes aos gêneros Enterobacter e Serratia, foram isoladas do rizoplano de Lupinus albescens. Essas bactérias são Gram-negativas, ... -
Is the human species still evolving? To where?
(2012) [Artigo de periódico]The questions of the title have been considered in several ways. First, indications of the traits which make us humans were considered. Then the behavior and culture concepts were examined, and the biology and culture ... -
Is the main goal of mastication achieved after orthodontic treatment? : A prospective longitudinal study
(2017) [Artigo de periódico]Objective: To investigate the masticatory and swallowing performances in patients with malocclusions before and after orthodontic treatment, comparing them to an age- and gender-matched control group with normal occlusion. ...