Source Coding
Mostrando 1-12 de 245 artigos, teses e dissertações.
-
1. Detection of differentially methylated regions of irradiated fig tree selections
ABSTRACT Fig tree (Ficus carica L.) breeding programs using conventional methods, such as directed crosses, to obtain new cultivars, are unworkable in many countries, including Brazil. Consequently, genetic breeding through mutagenesis has emerged as an important line of research that can improve this crop, and be a significant source of information about th
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-08
-
2. Sistemas CDMA ópticos coerentes baseados em codificação de fase espectral / Coherent optical CDMA systems based on spectral phase coding
In this work we perform a comprehensive analysis of a spectral phase-encoded time spreading optical code division multiple access (SPECTS-OCDMA) system. Despite being a numerical study, efforts were concentrated on the investigation of more realistic scenarios using as much information as possible from implemented test-beds in laboratories. In this context,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/12/2012
-
3. Functional characterization of sugarcane mustang domesticated transposases and comparative diversity in sugarcane, rice, maize and sorghum
Transposable elements (TEs) account for a large portion of plant genomes, particularly in grasses, in which they correspond to 50%-80% of the genomic content. TEs have recently been shown to be a source of new genes and new regulatory networks. The most striking contribution of TEs is referred as “molecular domestication”, by which the element coding seq
Genetics and Molecular Biology. Publicado em: 05/07/2012
-
4. Influência do Gene pacC na Regulação de Manosiltransferases no Dermatófito Trichophyton rubrum em Função de Variações Nutricionais e pH Ambiente. / Influence of Gene pacC in Mannosiltransferase Regulation of the Dermathophyte Trichophyton rubrum in Function to Changes by pH and Nutrient Sources.
Gene expression regulation is essential for fungi to adapt to environmental adversities, such as changes in the extracellular pH, nutrient starvation, ionic strength, and temperature. The adaptive response to ambient pH is well characterized in model fungi such as Aspergillus nidulans, and involves the signal transduction pathway consisting of the products o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/12/2011
-
5. Tesselações hiperbólicas aplicadas a codificação de geodésicas e códigos de fonte / Hyperbolic tessellations applied to geodesic coding and source codes
Neste trabalho apresentamos como contribuição um novo conjunto de tesselações do plano hiperbólico construídas a partir de uma tesselação bem conhecida, a tesselação de Farey. Nestas tesselações a região de Dirichlet é formada por polígonos hiperbólicos de n lados, com n >3. Explorando as características dessas tesselações, apresentamos al
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/07/2011
-
6. OPEN DVC: A TOOL FOR SIMULATION AND EVALUATION OF DISTRIBUTED VIDEO CODING / OPEN DVC: UMA FERRAMENTA PARA SIMULAÇÃO E AVALIAÇÃO DE CODIFICAÇÃO DISTRIBUÍDA DE VÍDEO
Codificação Distribuída de Vídeo (Distributed Video Coding ¿ DVC) é um paradigma de codificação baseado nos conceitos da Codificação Distribuída de Fontes correlatadas (Distributed Source Coding ¿ DSC), que tem como arcabouço a Teoria da Informação desenvolvida por Shannon, para um cenário onde temos uma codificação distribuída dos element
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/04/2011
-
7. Optimizing expression and purification of an ATP-binding gene gsiA from Escherichia coli k-12 by using GFP fusion
The cloning, expression and purification of the glutathione (sulfur) import system ATP-binding protein (gsiA) was carried out. The coding sequence of Escherichia coli gsiA, which encodes the ATP-binding protein of a glutathione importer, was amplified by PCR, and then inserted into a prokaryotic expression vector pWaldo-GFPe harboring green fluorescent prote
Genetics and Molecular Biology. Publicado em: 16/09/2011
-
8. Ocorrência e avaliação do potencial enterotoxigênico de Staphylococcus isolados de derivados lácteos / Ocurrence and assessment of enterotoxigenic potencia of Staphylococcus isolated from dairy products
Staphylococcus are microorganisms widespread in nature and humans and animals are their main sources. Cross-contamination after milk pasteurization, caused especially by improper handling, is considered the most recurrent source of dairy products contamination by these pathogens. Staphylococus deserves our close attention due their ability to produce a large
Publicado em: 2011
-
9. Detecção do vírus da anemia infecciosa das galinhas em Minas Gerais
A wide range study was conducted on chicken anemia virus (CAV) in order to investigate the occurrence of CAV in different chicken populations and potential sources of infection. Tissue and biological samples were studied by nested PCR and sequencing, including thirty-two industrial chickens, twenty subsistence chickens, twenty-eight commercial poultry live a
Publicado em: 2009
-
10. Identificação de micro RNAs em cana-de-açucar / Towards the identification of the sugarcane microRNAs
No-coding RNAs of 20-27 nucleotides (nt) transcriptional or posttranscriptionally regulate endogenous gene expression, affecting the cellular output of transcripts and proteins. Among these RNAs, microRNAs (miRNAs) play an important role in plant development as confirmed by phenotypic and molecular evaluation of transgenic plants and knockout mutants defecti
Publicado em: 2009
-
11. Identification of genetic signatures in coding region of the small subunit ribosomal RNA of Cryptosporidium spp.: molecular characterization of samples from mammals and birds / Identificação de assinaturas genéticas em região codificadora da menor unidade ribossômica de Cryptosporidium spp: caracterização molecular de amostras de mamíferos e aves
The objectives of this study were to identify 18S rDNA sequences of Cryptosporidium spp. From various species of hosts and to avaluate the variability in gene sequences of this locus, aiming the design of molecular probes with better diagnostic efficiency for the detection and identification of this parasite. It was collected 392 samples of domestic animals
Publicado em: 2009
-
12. Produção de quimosina B de Bos taurus em Pichia pastoris
Enzymatic milk coagulation for cheese manufacturing involves the cleavage of the scissile bond in κ casein by an aspartic protease. Bovine chymosin B is commonly used at the industrial level for milk coagulation because it combines a strong clotting activity with a low general proteolytic activity. In the present study, we report the expression, purific
Publicado em: 2008