Border Detection
Mostrando 25-36 de 37 artigos, teses e dissertações.
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25. Assessment of left ventricular function by three-dimensional echocardiography
Accurate determination of LV volume, ejection fraction and segmental wall motion abnormalities is important for clinical decision-making and follow-up assessment. Currently, echocardiography is the most common used method to obtain this information. Three-dimensional echocardiography has shown to be an accurate and reproducible method for LV quantitation, ma
BioMed Central.
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26. The twist gene: isolation of a Drosophila zygotic gene necessary for the establishment of dorsoventral pattern.
The twist zygotic gene appears to be involved in the establishment of the dorso-ventral pattern in Drosophila embryos. Homozygous twist embryos are partially dorsalized, their gastrulation is abnormal, and they fail to differentiate mesoderm. We determined the temperature-sensitive period of twist around the gastrulation time, and we isolated the gene. A 300
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27. Detection of Ehrlichia spp., Anaplasma spp., Rickettsia spp., and Other Eubacteria in Ticks from the Thai-Myanmar Border and Vietnam
A total of 650 ticks, including 13 species from five genera, were collected from animals, from people, or by flagging of the vegetation at sites on the Thai-Myanmar border and in Vietnam. They were tested by PCR to detect DNA of bacteria of the order Rickettsiales. Three Anaplasma spp. were detected in ticks collected in Thailand, including (i) Anaplasma sp.
American Society for Microbiology.
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28. Villin expression in the visceral endoderm and in the gut anlage during early mouse embryogenesis.
Villin is an evolutionarily well conserved, Ca2+ regulated actin-binding protein, and a major structural component of the brush border of specialized absorptive cells. Using paraffin sections and an affinity purified polyclonal anti-villin antibody, we have investigated the early expression of villin during mouse embryogenesis. Villin is first detectable at
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29. Urinary neutral endopeptidase in workers exposed to cadmium: interaction with cigarette smoking.
OBJECTIVES: Structural impairment of the renal proximal tubular epithelium induced by cadmium (Cd) was investigated by measuring the concentration of neutral endopeptidase 24.11 (NEP), an ectoenzyme of the apical brush border, in the urine of 106 male workers employed in a Cd smelter (among whom 52 were occupationally exposed to Cd), and by comparing it with
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30. Sulfatide from the Pig Jejunum Brush Border Epithelial Cell Surface Is Involved in Binding of Escherichia coli Enterotoxin b
Using a quantitative dot blot overlay assay of polyvinylidene difluoride membranes, we investigated the ability of Escherichia coli heat-stable enterotoxin b (STb) to bind to various glycolipids of defined structure. STb bound strongly to acidic glycosphingolipids, including sulfatide (or 3′-sulfogalactosylceramide) and several gangliosides, but not signif
American Society for Microbiology.
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31. Detection of abnormal aortic elastic properties in asymptomatic patients with Marfan syndrome by combined transoesophageal echocardiography and acoustic quantification.
OBJECTIVE: To evaluate the potential value of transoesophageal echocardiography combined with automated border detection and acoustic quantification for the assessment of elastic properties of the thoracic aorta in patients with Marfan syndrome. SUBJECTS: 16 patients with Marfan syndrome and 12 age matched normal controls. METHODS: Transoesophageal echocardi
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32. Transmission of audible praecordial gallop sounds to right supraclavicular fossa.
To evaluate the significance of audible gallop sounds in the right supraclavicular fossa we performed simultaneous external heart sound recordings at 50 and 100 Hz at the left ventricular apex, left sternal border, and right supraclavicular fossa in 50 patients with audible gallop sounds at the left ventricular apex. In each patient heart sounds were recorde
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33. Deletions of Structural Glycoprotein E2 of Classical Swine Fever Virus Strain Alfort/187 Resolve a Linear Epitope of Monoclonal Antibody WH303 and the Minimal N-Terminal Domain Essential for Binding Immunoglobulin G Antibodies of a Pig Hyperimmune Serum
The major structural glycoprotein E2 of classical swine fever virus (CSFV) is responsible for eliciting neutralizing antibodies and conferring protective immunity. The current structural model of this protein predicts its surface-exposed region at the N terminus with a short stretch of the C-terminal residues spanning the membrane envelope. In this study, th
American Society for Microbiology.
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34. Entamoeba histolytica interactions with polarized human intestinal Caco-2 epithelial cells.
To model the initial pathogenic effects of Entamoeba histolytica trophozoites on intestinal epithelial cells, the interactions of E. histolytica HM1-IMSS trophozoites with polarized human intestinal Caco-2 cell monolayers grown on permeabilized filters were examined. Trophozoites, when incubated with the apical surface of the monolayers at 37 degrees C, indu
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35. Gene Trapping with Firefly Luciferase in Arabidopsis. Tagging of Stress-Responsive Genes1[w]
To monitor the expression of T-DNA-tagged plant genes in vivo, a collection of 20,261 transgenic lines of Arabidopsis (Columbia-0) were generated with the promoter trap vector pTluc, which carries a promoterless firefly luc (luciferase) reporter gene linked to the right T-DNA border. By detection of bioluminescence in 3-week-old seedlings, 753 lines were ide
The American Society for Plant Biologists.
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36. Identification of Drosophila MicroRNA Targets
MicroRNAs (miRNAs) are short RNA molecules that regulate gene expression by binding to target messenger RNAs and by controlling protein production or causing RNA cleavage. To date, functions have been assigned to only a few of the hundreds of identified miRNAs, in part because of the difficulty in identifying their targets. The short length of miRNAs and the
Public Library of Science.