Single Event Transient
Mostrando 1-12 de 30 artigos, teses e dissertações.
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1. Comparative efficacy and safety of contact force-sensing catheter and second-generation cryoballoon ablation for atrial fibrillation: a meta-analysis
This meta-analysis compared the efficacy and safety of the contact force (CF)-sensing catheter and second-generation cryoballoon (CB) ablation for treating atrial fibrillation (AF). Six controlled clinical trials comparing ablation for AF using a CF-sensing catheter or second-generation CB were identified from PubMed, EMBASE, Cochrane Library, Wanfang Data,
Braz J Med Biol Res. Publicado em: 07/08/2017
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2. Single event transients in logic circuits - load and propagation induced pulse broadening
The generation and propagation of single event transients (SET) in logic gate chains is studied and modeled. Regarding SET generation, we investigate the dependence of the generated SET pulse width on the struck node capacitance. Rising node capacitance may lead to amplified pulse width, indicating that increasing load capacitance alone is not an option for
Publicado em: 2011
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3. Experience with different botulinum toxins for the treatment of refractory neurogenic detrusor overactivity
PURPOSE: To report our experience with the use of the botulinum toxin-A (BoNT/A) formulations Botox® and Prosigne® in the treatment of neurogenic detrusor overactivity (NDO). MATERIALS AND METHODS: At a single institution, 45 consecutive patients with refractory urinary incontinence due to NDO received a single intradetrusor (excluding the trigone) treatme
International braz j urol. Publicado em: 2010-02
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4. Estudo e implementação de um microcontrolador tolerante à radiação
Neste trabalho foi elaborado um microcontrolador 8051 tolerante à radiação, usando para isso técnicas de recomputação de instruções. A base para este trabalho foi a descrição VHDL desse microcontrolador, sendo proposto o uso de sensores de radiação, Bulk-BICS, e códigos de proteção de erros para os elementos de memória, como forma de suporte
Publicado em: 2010
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5. Modelagem e caracterização da propagação de pulsos transientes causados por radiação ionizante / Modeling and characterization of the propagation of transient pulses caused by ionizing radiation
A propagação de eventos transientes na lógica combinacional é estudada através da simulação elétrica do circuito, utilizando-se o simulador Hspice. Uma das fontes de falhas transientes é o pulso transiente causado por partículas ionizantes que atingem o circuito. O estudo é centrado nas propriedades de mascaramento elétrico das portas lógicas. E
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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6. Microinjection of cre recombinase RNA induces site-specific recombination of a transgene in mouse oocytes.
We have developed a strategy for producing single copy transgenic mouse lines using Cre-loxP site specific recombination. The method is based on transient expression of the recombinase after injection of in vitro transcribed mRNA into the cytoplasm of fertilised eggs containing multiple copies of the transgene. The success rate of the recombination event is
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7. Photic modulation of a highly sensitive, near-infrared light-scattering signal recorded from intact retinal photoreceptors.
On stimulation by green flashes, the isolated, aspartate-treated bovine retina exhibits transient changes in the scattering of near-infrared (880 nm) light. A single component, termed the "ATR" (a flash-induced scattering signal, where ATR designates amplified transient-retina), dominates the amplitude and rising-phase kinetics of the initial peak of the lig
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8. Can the long term outcome of individual patients with transient ischaemic attacks be predicted accurately?
The prognosis of individual patients with transient ischaemic attacks (TIAs) is extremely variable; some patients are at high risk and others at low risk of a serious vascular event. Prediction equations of outcome were developed, based on eight clinical prognostic factors, from a cohort of 469 hospital-referred TIA patients ("training" data set), that enabl
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9. Event-related functional MRI: Past, present, and future
The past two decades have seen an enormous growth in the field of human brain mapping. Investigators have extensively exploited techniques such as positron emission tomography and MRI to map patterns of brain activity based on changes in cerebral hemodynamics. However, until recently, most studies have investigated equilibrium changes in blood flow meas
The National Academy of Sciences.
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10. Persistence of Motor Memories Reflects Statistics of the Learning Event
Learning to control a new tool (i.e., a novel environment) produces an internal model, i.e., a motor memory that allows the brain to implicitly predict the behavior of the tool. Data from a wide array of experiments suggest that formation of motor memory is not a single process, but one that is due to multiple adaptive processes with different time constants
American Physiological Society.
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11. Segmental genomic replacement by Cre-mediated recombination: genotoxic stress activation of the p53 promoter in single-copy transformants.
Genotoxic stress results in transcriptional activation of the p53 promoter. To gain more detailed information on genotoxic induction of the p53 promoter at a uniform genomic locus, we have developed an efficient strategy for replacing a defined genomic segment in mouse NIH 3T3 cells with exogenous transfected DNA using a 'double lox' targeting strategy media
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12. Transient expression and mutational analysis of the rotavirus intracellular receptor: the C-terminal methionine residue is essential for ligand binding.
Maturation of rotavirus involves an intracellular membrane budding event in which the single-shelled icosahedral particle interacts with a virus-encoded receptor glycoprotein, NS28, that is located in the rough endoplasmic reticulum membrane. The receptor is a tetramer and is oriented with the C-terminal 131 amino acids on the cytoplasmic side of the membran