Frequency Dynamics
Mostrando 1-12 de 417 artigos, teses e dissertações.
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1. Screening for myeloid mutations in patients with myelodysplastic syndromes and AML with myelodysplasia-related changes
ABSTRACT Introduction: One of the most critical complications in myelodysplastic syndromes (MDS) is the progression to acute myeloid leukemia (AML). The dynamics of clonal evolution in MDS and how acquired mutations can be used as biomarkers to track disease progression remains under investigation. Objective and method: Herein, we investigated the frequenc
Hematology, Transfusion and Cell Therapy. Publicado em: 2022
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2. Assessment of Total Attenuation and Adaptive Scheme for Quality of Service Enhancement in Tropical Weather for Satellite Networks and 5G Applications in Nigeria
Abstract The dynamic weather condition is a major concern for optimum channel utilization in recent times, especially at higher frequencies with larger bandwidth for 5G applications. Over the years, rain-induced attenuation among the hydrometeors has been linked as the major cause of signal impairment especially at the frequency, f ≥ 10 GHz. However, when
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2021-06
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3. ASSESSMENT OF THE QUALITY OF PEDIATRIC CARDIOPULMONARY RESUSCITATION USING THE IN SITU MOCK CODE TOOL
RESUMO Objetivo: Avaliar a qualidade do atendimento individual e de equipe à parada cardiorrespiratória (PCR) em hospital pediátrico, utilizando a ferramenta de simulação clínica surpresa (in situ mock code). Métodos: Estudo observacional transversal com profissionais de saúde. Foram realizadas simulações clínicas de PCR em diversos setores, em
Rev. paul. pediatr.. Publicado em: 13/01/2020
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4. A dinâmica da atenção governamental sobre as políticas de saúde no Brasil: equilíbrio e pontuações nas primeiras décadas pós-redemocratização (1986-2003)
Resumo Este trabalho tem o objetivo central de mapear e analisar a atenção de alguns atores e instituições sobre as políticas de saúde no Brasil entre 1986 e 2003. Esse modelo de pesquisa sobre agenda governamental é conhecido sob o termo “dinâmica de políticas” (policy dynamics) e analisa o processo de mudança de políticas públicas por meio
Saude soc.. Publicado em: 07/10/2019
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5. Genetic drift in mammals
Abstract: Genetic drift is the fortuitous occurrence of genetic events that when they become fixed modify the genome of populations. They can take the form of mutations of single nucleotides (SNPs), the insertion or deletion of short sequences (Indels) or the repetitions of short sequences (CNV i.e. copy number variants) or long insertions or deletion (struc
An. Acad. Bras. Ciênc.. Publicado em: 26/08/2019
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6. Higher-order explicit time integration methods for numerical analyses of structural dynamics
Abstract In this article, third- and fourth-order accurate explicit time integration methods are developed for effective analyses of various linear and nonlinear dynamic problems stated by second-order ordinary differential equations in time. Two sets of the new methods are developed by employing the collocation approach in the time domain. To remedy some sh
Lat. Am. j. solids struct.. Publicado em: 22/07/2019
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7. Temporal variations of larval digenean assemblages parasitizing Heleobia parchappii (Mollusca: Cochliopidae) in two shallow lakes from the Buenos Aires province, Argentina
ABSTRACT The larval digenean assemblages in snail hosts are influenced by biotic and abiotic factors and by environmental disturbances due to human activities. Given their susceptibility to different types of impact, they can be useful tools for the study of temporal variations in parasite communities. The study of temporal dynamics in prevalence and species
Iheringia, Sér. Zool.. Publicado em: 15/07/2019
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8. Propagation of vibrational modes in classical harmonic lattice with correlated disorder
Abstract: The vibrational modes with nonzero frequency are localized in harmonic lattice with disordered masses. In our work, we investigated numerically the propagation of vibrational energy in harmonic lattice with long-range correlated disordered masses, which are randomly distributed with power law spectrum S ( k ) ∝ k − α. For α = 0, a standar
An. Acad. Bras. Ciênc.. Publicado em: 01/07/2019
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9. Dynamics of dry tropical forest after three decades of vegetation suppression
ABSTRACT The aim of this study was to analyze the dynamics of the community and shrub-woody individuals in a dry forest in the Brazilian semiarid region after 29 years of vegetation suppression. Individuals with a circumference at 1.30 m above the ground (CBH) ≥ 6 cm were counted and their heights and CBH were measured in 40 permanent plots on three monito
Floresta Ambient.. Publicado em: 01/07/2019
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10. Diet and resource sharing by two Pimelodidae species in a Southeastern Brazilian reservoir
Resumo: Os peixes podem variar suas dietas e dinâmicas alimentares de acordo com fatores bióticos e abióticos. O conhecimento insuficiente desses fatores em reservatórios limita o manejo dessas áreas. O objetivo deste estudo foi determinar a dieta de duas espécies de peixes aparentados e mais coletados; verificar a influência de fatores bióticos e ab
Biota Neotrop.. Publicado em: 06/06/2019
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11. Tillering dynamics of digit grass subjected to different defoliation frequencies
Resumo: O objetivo deste trabalho foi avaliar a dinâmica do perfilhamento do capim faixa-branca 'Suvernola' (Digitaria eriantha) quando submetido a diferentes frequências de desfolhação. Quatro frequências de desfolhação (intervalo entre cortes) foram avaliadas - muito alta, quando a gramínea atingiu 25 cm de altura; alta, 35 cm; média, 45 cm; e bai
Pesq. agropec. bras.. Publicado em: 06/05/2019
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12. Cardiac Evaluation in the Acute Phase of Chagas’ Disease with Post-Treatment Evolution in Patients Attended in the State of Amazonas, Brazil
Resumo Fundamento: Nas últimas duas décadas, um novo perfil epidemiológico da Doença de Chagas (DC) foi registrado na Amazônia brasileira, onde a transmissão oral foi indicada como responsável pelo aumento dos casos agudos. No estado do Amazonas, foram registrados cinco surtos da doença desde 2004. As manifestações cardíacas nesses casos podem se
Arq. Bras. Cardiol.. Publicado em: 07/01/2019