Separated Hypotheses
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Triple plagiotropic branch in coffee: a new promising mutant?
Abstract Coffee tree is a shrub with dimorphic branches. The orthotropic stem grows vertically with two near-horizontal plagiotropic branches, per node, in opposite phyllotaxy. The consecutive nodes of the orthotropic stem are organized in parastichies. We report here mutant plants of Coffea arabica with triple plagiotropic branch, resulted from the whorled
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-12
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2. Diversidade, diferenciação e biogeografia de pequenos mamíferos não-voadores na Mata Atlântica ao norte do rio São Francisco Centro de Endemismo Pernambuco / Diversity, differentiation and biogeography of non-volant small mammals of the Atlantic Forest north of São Francisco river - Pernambuco Endemism Center
The Brazilian tropical rainforests (Amazon and Atlantic Forest) present high species diversity and are currently separated by a belt of open and dry vegetation. Part of this belt is occupied by the Caatinga, where are found the Brejos de Altitude, evidence of the historical connections between the Atlantic Forest and the Amazon. The Pernambuco Endemism Cente
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2011
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3. Filogeografia, morfometria e distribuição geográfica potencial de populações de Rhodnius neglectus (Hemiptera, Reduviidae) no Brasil
Sylvatic triatomines of the genus Rhodnius commonly fly into houses in Latin America, maintaining the risk of Chagas disease transmission. In this thesis, phylogeographical, morphological and potential geographical distribution analyses of Rhodnius populations in central Brazil were carried out, focusing in R. neglectus, the major species found in palm trees
Publicado em: 2008
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4. Model selection by a genuinely Bayesian significance test: Multivariate normal mixtures and separated hypotheses / Seleção de modelos através de um teste de hipótese genuinamente Bayesiano: misturas de normais multivariadas e hipóteses separadas
Nesta tese propomos o Full Bayesian Significance Test (FBST), apresentado por Pereira e Stern em 1999, para análise de modelos de misturas de normais multivariadas. Estendemos o conceito de modelos de misturas para explorar outro problema clássico em Estatística, o problema de modelos separados. Nas duas propostas, realizamos experimentos numéricos inspi
Publicado em: 2007
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5. Significado morfotectônico dos planaltos isolados da Bocaina / Morphotectonics of the isolated plateaus of Bocaina
The Bocaina Plateau is situated on the eastern flank of the Continental Rift of Southeastern Brasil (CRSB), in the highest portions of the Serra do Mar, reaching more than 2000 meters in altitude. This and the Campos do Jordão Plateau comprise the high blocks of crystalline massifs of Southeastern Brasil. The Bocaina presents a succession of NW-SE topograph
Publicado em: 2007
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6. Efeitos do sexo, do vigor e do tamanho da planta hospedeira sobre a distribuição de insetos indutores de galhas em Baccharis pseudomyriocephala Teodoro (Asteraceae)
Several hypotheses have been proposed to explain the patterns of host plant utilization by herbivorous insects in natural communities. We tested four hypotheses aiming to understand the pattern of attack by gall-inducing insects on the dioecious shrub, Baccharis pseudomyriocephala (Asteraceae). The shrub occurs in the Parque Estadual do Itacolomi, Southeaste
Revista Brasileira de Entomologia. Publicado em: 2003-12
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7. A Multi-Marker Model for Detecting Chromosomal Segments Displaying Qtl Activity
A statistical method is presented for detecting quantitative trait loci (QTLs), based on the linear model. Unlike methods able to detect a few well separated QTLs and to estimate their effects and positions, this method considers the genome as a whole and enables the detection of chromosomal segments involved in the differences between two homozygous lines,
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8. Diploid hybrid speciation in Penstemon (Scrophulariaceae)
Hybrid speciation has played a significant role in the evolution of angiosperms at the polyploid level. However, relatively little is known about the importance of hybrid speciation at the diploid level. Two species of Penstemon have been proposed as diploid hybrid derivatives based on morphological data, artificial crossing studies, and pollinator behavior
The National Academy of Sciences.
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9. Analysis of differential gene expression in colorectal cancer and stroma using fluorescence-activated cell sorting purification
Tumour stroma gene expression in biopsy specimens may obscure the expression of tumour parenchyma, hampering the predictive power of microarrays. We aimed to assess the utility of fluorescence-activated cell sorting (FACS) for generating cell populations for gene expression analysis and to compare the gene expression of FACS-purified tumour parenchyma to tha
Nature Publishing Group.
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10. Differential repression of GAL4 and adjacent transcription activators by operators in the yeast GAL upstream activating sequence.
The upstream activating sequence of the adjacent and divergently transcribed GAL1 and GAL10 genes of Saccharomyces cerevisiae (UASG) contains at least three distinct classes of overlapping transcriptional control sites. The transcription activator GAL4 binds to four related sites in UASG and induces expression of GAL1 and GAL10 when galactose is available. W
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11. Localized Conversion in STREPTOCOCCUS PNEUMONIAE Recombination: Heteroduplex Preference
In pneumococcal transformation the frequency of recombinants between point mutations is generally proportional to distance. We have recently described an aberrant marker in the amiA locus that appeared to enhance recombination frequency when crossed with any other allele of this gene. The hyperrecombination that we have observed in two-point crosses could be
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12. How are close residues of protein structures distributed in primary sequence?
Structurally neighboring residues are categorized according to their separation in the primary sequence as proximal (1-4 positions apart) and otherwise distal, which in turn is divided into near (5-20 positions), far (21-50 positions), very far ( > 50 positions), and interchain (from different chains of the same structure). These categories describe the line