Populational Variation
Mostrando 1-12 de 38 artigos, teses e dissertações.
-
1. Antivenomics as a tool to improve the neutralizing capacity of the crotalic antivenom: a study with crotamine
Abstract Background Snakebite treatment requires administration of an appropriate antivenom that should contain antibodies capable of neutralizing the venom. To achieve this goal, antivenom production must start from a suitable immunization protocol and proper venom mixtures. In Brazil, antivenom against South American rattlesnake (Crotalus durissus terrif
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 06/07/2017
-
2. Advertisement call of Dendropsophus microps (Anura: Hylidae) from two populations from southeastern Brazil
In anurans, acoustic communication is a major mechanism of pre-zygotic isolation, since it carries information about species recognition. Detailed descriptions of the acoustic properties of anuran advertisement calls provide important data to taxonomist and to the understanding of the evolution of the group. Herein we re-describe the advertisement call of th
Zoologia (Curitiba). Publicado em: 2015-06
-
3. DENSIDADE URBANA E POPULACIONAL E SEUS EFEITOS MULTITEMPORAIS NA CIDADE DE CASCAVEL/PR / URBAN AND POPULATIONAL DENSITY AND ITS MULTITEMPORAL EFFECTS IN CASCAVEL-PR
Este trabalho compara o crescimento urbano, entre os anos de 1995 e 2006, com a evolução populacional dos censos demográficos, realizados entre os anos de 2000 e 2010. A delimitação e classificação da densidade urbana, em categorias, ocorreram a partir de interpretação das imagens do satélite Landsat-5 sensor Thematic Mapper. Foram utilizadas as ba
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/03/2012
-
4. Microbiological quality of salmon (Salmo salar) sold in cities of the state of São Paulo, Brazil
The present paper evaluated the microbiology of salmon by quantifying mesophilic heterotrophic microorganisms, total and thermotolerant coliforms, and the presence of Vibrio parahaemolyticus, Staphylococcus aureus, Salmonella sp., Escherichia coli and Aeromonas sp. in the meat. This study can provide technical support for the suggestion of a new regulation o
Braz. J. Microbiol.. Publicado em: 2012-12
-
5. Regeneração de espécies arbóreas em floresta impactada
This study aimed to investigate aspects of population ecology of six tree species in two areas with different historical preservation: Mata São Francisco State Park (MSFSP), Santa Mariana-Cornelio Procópio, PR, Brazil (23º 15 S and 50º 45 W, central point of fragment), who suffered exploration anthropogenic, and Mata dos Godoy State Park (MGSP) (23º 27
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2011
-
6. Antropologia dental : traços não-métricos de uma amostra brasileira / Dental anthropology : non-metric traits of a Brazilian sample
The non-metric traits in tooth morphology, for their excellent preservation, and inter-population variation, immune from selection pressure, are known to be one of the major sources of observation for researchers who analyze human variation and its relationship to the populations biological history. In a forensic context, the knowledge of the local morpholog
Publicado em: 2011
-
7. Variabilidade genética em populações de Heliothis virescens (Lepidoptera: Noctuidae) no Brasil inferida por marcadores microssatélites / Heliothis virescens (Lepidoptera: Noctuidae) populational genetic variation in Brazil inferred by microsatellite markers
Estudos de genética de populações de pragas agrícolas têm destacado a importância de se conhecer a estruturação genética e os padrões de fluxo gênico entre populações para o refinamento de estratégias de Manejo Integrado de Pragas (MIP). A lagarta-da-maçã do algodoeiro, Heliothis virescens (F.), é um inseto praga amplamente distribuído e im
Publicado em: 2011
-
8. Analysis of populational variation and characterization of secondary metabolites in the leaves of Lychnophora granmongolense (Duarte) Semir &Leitão Filho. / Análise de variação populacional e caracterização dos metabólitos secundários presentes nas folhas de Lychnophora granmongolense (Duarte) Semir &Leitão Filho
One of the main characteristics of plants of the Asteraceae family is their capacity to produce a huge diversity of secondary metabolites having therapeutic and toxic effects. An analytical method was developed based on HPLCDAD which was used to verify the existence of variations in Lychnophora granmongolense (Duarte) Semir &Leitão Filho secondary metabolit
Publicado em: 2010
-
9. The karyotype of Nothoscordum arenarium Herter (Gilliesioideae, Alliaceae) : a populational and cytomolecular analysis
The genus Nothoscordum Kunth comprises approximately 20 species native to South America. Karyologically, the genus is remarkable for its large chromosomes and Robertsonian translocations. Variation in chromosome number has been recorded in a few polyploid species and it is unknown among diploids. This study presents the chromosome number and morphology of 53
Publicado em: 2010
-
10. Estudo da variação populacional dos metabólitos secundários do arnicão (Lychnophora salicifolia Mart., Vernonieae, Asteraceae) / Interpopulational variation of secondary metabolites of arnicão (Lychnophora salicifolia Mart., Vernonieae, Asteraceae).
Cerca de 10% da flora mundial é representada pela família Asteraceae, uma das maiores famílias de Angiospermae, caracterizada não só pela diversidade morfológica e taxonômica, como também pela riqueza de metabólitos secundários apresentada pelas espécies estudadas dessa família. Lychnophora salicifolia Mart. é a espécie de maior distribuição
Publicado em: 2010
-
11. ASPECTOS DA ECOLOGIA POPULACIONAL E COMPORTAMENTAL DE Nephila clavipes (Linnaeus, 1767) (ARANEAE, NEPHILIDAE)
Nephila clavipes (Linnaeus, 1767) is a species of orb-web spider found throughout Brazil. The aim of this work was to evaluate aspects of the populational ecology of the species, along with growth, development, and phenology of individuals located in the campus of the Universidade Federal de Juiz de Fora (UFJF), in the municipality of Juiz de Fora, Minas Ger
Publicado em: 2010
-
12. Brazilian Portugueses nasal diphthongation: an acoustic and aerodynamic analysis of speech / A ditongação nasal no português brasileiro: uma análise acústico-aerodinâmica da fala
There are several studies that characterize the nasal vowels. However, there are few studies about the nasal diphthongation. This phenomenon emerges from the articulatory gestures constellation. This can be noted by analyzing of the acousticaerodynamics parameters. The aim of this work is study the gesture configuration between the thong movement and the vel
Publicado em: 2010