Variation
Mostrando 37-48 de 13803 artigos, teses e dissertações.
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37. A New Miniaturized Low-Profile and Stable Dual-Band FSS with 2.5D Structure for ISM Bands
Abstract Based on 2.5-Dimensional (2.5D) frequency selective surface (FSS) structures, a new miniaturized frequency selective surface structure is proposed in this work to operate as a bandreject filter in the 2.4 GHz (2400 to 2483.5 MHz) and 5 GHz (5150 to 5350 MHz and 5470 to 5725 MHz) ISM (Industrial, Scientific, and Medical) bands. The FSS has the metall
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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38. Insecticidal activity of Piper aduncum oil: variation in dillapiole content and chemical and toxicological stability during storage
RESUMO O efeito inseticida do óleo essencial de Piper aduncum (OEPA) e, particularmente, de seu constituinte dilapiol [1-alil-2,3-dimetoxi-4,5-(metilenodioxi) benzeno], está bem documentado na literatura e pode estar associado à sua interferência na desintoxicação enzimática em artrópodes. No entanto, não existem dados sobre a amplitude de teores de
Acta Amazonica. Publicado em: 2022
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39. Kidney surface development in human fetuses: study applied to radiological diagnosis
ABSTRACT Objective: To evaluate the anatomical aspects of the kidney surface in human fetuses during the second gestational trimester. Material and Methods: We studied 108 kidneys obtained from 54 human fetuses (29 males and 25 females). The kidney was dissected and the number of clefts was counted. The renal volume was also assessed. To compare the quanti
International braz j urol. Publicado em: 2022
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40. Violence against health personnel before and during the COVID-19 pandemic
SUMMARY OBJECTIVE: Violence in the workplace has been an alarming phenomenon around the world. The aim of this study was to analyze the frequency of violence against health personnel in urgent and emergency departments, before and during the COVID-19 pandemic. METHODS: This is an exploratory cross-sectional study including a structured online survey with t
Revista da Associação Médica Brasileira. Publicado em: 2022
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41. Glucose variability is a marker for COVID-19 severity and mortality
ABSTRACT Objective: We aimed to investigate the association between glucose coefficient of variation (CV) and mortality and disease severity in hospitalized patients with coronavirus disease-19 (COVID-19). Subjects and methods: Retrospective cohort study in a tertiary center of patients with COVID-19 admitted to designated departments between March 11th, 2
Archives of Endocrinology and Metabolism. Publicado em: 2022
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42. Probiotic therapy outcomes in body composition of children and adolescent with obesity, a nonrandomized controlled trial
ABSTRACT Objective: The objective of this study was to evaluate the impact of probiotic supplementation therapy on anthropometric values and body composition of children and adolescent with obesity. Subjects and methods: This is a nonrandomized controlled, prospective, double-blind interventional clinical trial with primary data analysis. The sample compri
Archives of Endocrinology and Metabolism. Publicado em: 2022
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43. Acute changes in glucose induced by continuous or intermittent exercise in children and adolescents with type 1 diabetes
ABSTRACT Objective: To estimate the rate of change during exercise and during recovery in moderate-continuous exercise (MCE) and high-intensity intermittent exercise (HIIE) in children and adolescents with type 1 diabetes (T1D). Subjects and methods: Participants performed 2 sessions of exercise: thirty minutes of continuous activity on a cycle ergometer (
Archives of Endocrinology and Metabolism. Publicado em: 2022
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44. Effect of stem height in variation of bark, heartwood, sapwood and physical properties of wood in Dipteryx panamensis Pittier in a provenance/progeny test
RESUMO A madeira de Dipteryx panamensis é usada no reflorestamento na Costa Rica, tendo um programa de melhoramento genético iniciado recentemente no país. O objetivo do presente estudo foi estudar o efeito da altura do tronco das árvores na variação de casca, alburno, cerne, densidade verde (GD), densidade básica (SG) e teor de umidade na condição
Ciência Florestal. Publicado em: 2022
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45. Is the Wistar Rat a more Suitable Normotensive Control for SHR to Test Blood Pressure and Cardiac Structure and Function?
Abstract Background: There are divergences in the literature regarding the experimental model (Wistar-WIS or Wistar Kyoto-WKY) to be used as a Spontaneously Hypertensive Rat (SHR) control. The characterization of these models in terms of cardiovascular parameters provides researchers with important tools at the time of selection and application in scientifi
International Journal of Cardiovascular Sciences. Publicado em: 2022
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46. Mortality in children under five years old in Brazil: evolution from 2017 to 2020 and the influence of COVID-19 in 2020
Abstract Objective: To analyse the mortality trends in children under five years old in Brazil from 2017 to 2020 and the influence of COVID-19 in 2020. Methods: A retrospective study employing secondary data from the Brazilian Mortality Information System. Deaths according to cause were extracted and disaggregated into early, late, post-neonatal, and 1 to
Jornal de Pediatria. Publicado em: 2022
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47. Validation and reproducibility of the International Study of Asthma and Allergies in Childhood (ISAAC) Written Atopic Eczema Questionnaire for telephone survey in children aged 6-7 years
Abstract Background The prevalence of atopic eczema is unknown in many countries. The International Study of Asthma and Allergies in Childhood (ISAAC) is an epidemiological landmark in the study of allergic diseases. Objective To validate and assess the reproducibility of the ISAAC Written Atopic Eczema Questionnaire (WAEQ) for children aged between 6 and
Anais Brasileiros de Dermatologia. Publicado em: 2022
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48. The relationship between red cell distribution width and prognostic scores in myelodysplastic syndrome
ABSTRACT Introduction: The myelodysplastic syndrome (MDS) represents a group of hematopoietic neoplasms that is characterized by clonal hematopoiesis, cytopenia and abnormal cellular maturation. Red cell distribution width (RDW) refers to the variation degree of erythrocyte size and it is a reflection of anisocytosis. Higher values have been linked to adver
Hematology, Transfusion and Cell Therapy. Publicado em: 2022