Progressive Coding
Mostrando 1-12 de 55 artigos, teses e dissertações.
-
1. Diagnosis of the RhD status using conventional polymerase chain reaction / Diagnóstico do fator RhD utilizando a reação em cadeia da polimerase convencional
Molecular biology techniques have added some advantages to conventional diagnosis of the Rhesus (Rh) blood group. Many researches have demonstrated the practical superiority of RhD genotyping using polymerase chain reaction (PCR) over phenotypic identification tests obtained by hemagglutination. The use of different kinds of molecular analysis techniques and
Publicado em: 2008
-
2. Sistema de codificação de video baseado em transformadas tridimensionais, rapidas e progressivas / Video coding system based on three dimensional, fast and progressive transforms
The research on video coding systems has always been looking for techniques that can reach the highest possible compression rate. This compression rate increase is generally achieved by means of increased coding complexity, which is supported by the continuous increase verified in computational power. However, in some video coding and transmission situations
Publicado em: 2007
-
3. TÉCNICA DE CODIFICAÇÃO PIRAMIDAL UTILIZANDO A QUANTIZAÇÃO VETORIAL PARA TRANSMISSÃO PROGRESSIVA DE IMAGENS / PROGRESSIVE IMAGE TRANSMISSION ON PIRAMIDAL CODING TECHNIQUE BY VECTOR QUANTIZATION
Neste trabalho é proposta uma técnica para transmissão progressiva de imagens. Esta técnica está baseada no modelo piramidal de Burt e Adelson [2], fazendo uso da codificação por quantização vetorial nas imagens representadas por uma estrutura piramidal, denominada pirâmide de imagens diferença. Esta estrutura é obtida da subtração de uma pirâ
Publicado em: 1997
-
4. A molecular clock based on the expansion of gene families.
There is evidence to suggest that eukaryotic genomes are subject to frequent insertions and deletions of non-coding DNA. This may lead to a gradual increase or decrease in genome size, or to a dynamic equilibrium in which the overall size remains constant. We argue, however, that there is a bias favouring an accumulation of non-coding DNA in the proximity of
-
5. Protein Coding Palindromes Are a Unique but Recurrent Feature in Rickettsia
Rickettsia are unique in inserting in-frame a number of palindromic sequences within protein coding regions. In this study, we extensively analyzed repeated sequences in the genome of Rickettsia conorii and examined their locations in regard to coding versus noncoding regions. We identified 656 interspersed repeated sequences classified into 10 distinct fami
Cold Spring Harbor Laboratory Press.
-
6. Vectorial expansion of the involucrin gene and the relatedness of the hominoids.
In higher primates, the coding region of the gene for involucrin, an epidermal protein, is mostly composed of a recently generated (modern) segment of repeats of a sequence of 10 codons. While the rest of the coding region has evolved only by nucleotide substitutions, the modern segment has evolved by successive addition of repeats. This process has not take
-
7. Immunoregulation of a viral model of multiple sclerosis using the synthetic cannabinoid R(+)WIN55,212
Theiler murine encephalomyelitis virus–induced demyelinating disease (TMEV-IDD) is a mouse model of chronic-progressive multiple sclerosis (MS) characterized by Th1-mediated CNS demyelination and spastic hindlimb paralysis. Existing MS therapies reduce relapse rates in 30% of relapsing-remitting MS patients, but are ineffective in chronic-progressive disea
American Society for Clinical Investigation.
-
8. Deletion of the Ca2+-activated potassium (BK) α-subunit but not the BKβ1-subunit leads to progressive hearing loss
The large conductance voltage- and Ca2+-activated potassium (BK) channel has been suggested to play an important role in the signal transduction process of cochlear inner hair cells. BK channels have been shown to be composed of the pore-forming α-subunit coexpressed with the auxiliary β1-subunit. Analyzing the hearing function and cochlear phenotype of BK
National Academy of Sciences.
-
9. Dosage Compensation of the Drosophila White Gene Requires Both the X Chromosome Environment and Multiple Intragenic Elements
The X-linked white gene when transposed to autosomes retains only partial dosage compensation. One copy of the gene in males expresses more than one copy but less than two copies in females. When inserted in ectopic X chromosome sites, the mini-white gene of the CaspeR vector can be fully dosage compensated and can even achieve hyperdosage compensation, mean
-
10. Nucleotide 880 splice donor site required for efficient transformation and RNA accumulation by human papillomavirus type 16 E7 gene.
Mutations within coding sequences of the various human papillomavirus type 16 (HPV-16) genes have been used to demonstrate that the HPV-16 E7 gene is necessary and sufficient for transformation of rodent cells. We now provide evidence that, in addition to E7 coding sequences, a small cis-acting region immediately flanking the 3' end of E7 coding sequences is
-
11. Transgenic mice expressing an altered murine superoxide dismutase gene provide an animal model of amyotrophic lateral sclerosis.
Amyotrophic lateral sclerosis is a progressive neurodegenerative disorder primarily involving motoneurons. A subset of individuals with familial autosomal dominant forms of the disease have mutations of the copper/zinc superoxide dismutase (Cu/Zn SOD, SOD-1) gene, which encodes a ubiquitously expressed enzyme that plays a key role in oxygen free radical scav
-
12. Expression of acidic fibroblast growth factor cDNA confers growth advantage and tumorigenesis to Swiss 3T3 cells.
Acidic fibroblast growth factor (aFGF), a polypeptide with a mol. wt of approximately 16,000, is a potent mitogen for a variety of cells and shares 55% amino acid sequence identity with basic FGF. The recent isolation of three new oncogenes which share 35-45% amino acid sequence similarity with the FGFs suggests that the coding sequences for the FGFs themsel