Background Radiation
Mostrando 13-24 de 182 artigos, teses e dissertações.
-
13. Standardization of organoid culture for evaluation of melanogenesis induced by UVB, UVA and visible light,
Abstract Background: Organoid cultures are primary cultures that maintain architectural characteristics and the relationships between cells, as well as the extracellular matrix. They are alternatives for pathophysiological or therapeutic investigation rather than animal and in vitro tests. Objective: Development of a cutaneous organoid culture model, aimin
An. Bras. Dermatol.. Publicado em: 2020-02
-
14. Development and validation of an instrument to assess the knowledge of general practitioners and pediatricians about photoprotection and solar radiation
Abstract Background The knowledge of general practitioners about photoprotection is unknown. Objectives To develop and validate an instrument to evaluate the knowledge of general practitioners and pediatricians about photoprotection, gauging the knowledge of these professionals. Methods The study followed the steps: (1) Literature identification and item
An. Bras. Dermatol.. Publicado em: 09/12/2019
-
15. Impact of One-Catheter Strategy with TIG I Catheter on Coronary Catheterization Performance and Economic Costs
Resumo Fundamento: A cineangiocoronariografia com dois cateteres é a estratégia tradicional para procedimentos coronarianos de diagnóstico. O cateter TIG I permite canular ambas as artérias coronárias, evitando a troca de cateteres durante a cineangiocoronariografia por acesso transradial. Objetivo: O objetivo deste estudo é avaliar o impacto da estr
Arq. Bras. Cardiol.. Publicado em: 02/12/2019
-
16. Redescobrindo a lei empírica de Hubble em sala de aula
Resumo O século 20 é marcado por duas grandes descobertas cosmológicas: a expansão do Universo, e a medida da radiação cósmica de fundo correspondente a uma temperatura de T = 2.275 K. Esta última, conjuntamente com a predição correta da abundância dos elementos formam os pilares que sustentam o modelo cosmológico atual ou modelo cosmológico
Rev. Bras. Ensino Fís.. Publicado em: 25/04/2019
-
17. Prevalence of Lens Opacity in Interventional Cardiologists and Professional Working in the Hemodynamics in Brazil
Resumo Fundamento: A catarata subcapsular posterior é uma reação tecidual encontrada com frequência nos profissionais expostos à radiação ionizante. Objetivo: Avaliar a prevalência de catarata nos profissionais que atuam na área de hemodinâmica no Brasil. Métodos: Profissionais expostos à radiação ionizante (grupo 1, G1) foram submetidos ao
Arq. Bras. Cardiol.. Publicado em: 21/02/2019
-
18. Evaluation of vitamin D plasma levels after mild exposure to the sun with photoprotection
Abstract: Background: Most of the organism’s vitamin D (VD) is obtained through the cutaneous synthesis after exposure to the sun’s UVB radiation. Sunscreens are indicated for the prevention of actinic damage to the skin, however, there are few clinical trials assessing the synthesis of cutaneous VD in real-life situations of sun exposure with ordinary
An. Bras. Dermatol.. Publicado em: 2019-02
-
19. Vitamin D levels in actinic keratosis: a preliminary study
Abstract: Background: Recent studies that investigated the effect of vitamin D on skin cancer risk have exhibited inconsistent results. Objective: The aim of the study was to evaluate vitamin D status in patients with actinic keratosis. Methods: A cross-sectional study was conducted on 31 patients with actinic keratosis and 29 healthy controls. Serum vita
An. Bras. Dermatol.. Publicado em: 2018-08
-
20. Prevalence of dermatological complaints in patients undergoing treatment for breast cancer
Abstract: BACKGROUND: Internal malignancies such as breast cancer, as well as their treatment can often result in skin changes. OBJECTIVE: To assess the prevalence of dermatological complaints in patients who are undergoing oncological treatment for breast cancer in a hospital in Tubarão, Santa Catarina, Brazil. METHODS: Observational, cross-sectional st
An. Bras. Dermatol.. Publicado em: 2018-06
-
21. Blocking or enhancing effects of some basic emollients in UVA penetration
Abstract: Background: Topical agents used in combination with phototherapy or photochemotherapy may have both blocking or enhancing effects in ultraviolet rays. Objective: In this in vivo study, the effects of topical petrolatum, basis cream, glycerine, and olive oil on the transmission of ultraviolet A radiation were investigated. Methods: A test was per
An. Bras. Dermatol.. Publicado em: 2018-03
-
22. Global and gene-specific DNA methylation and hydroxymethylation in human skin exposed and not exposed to sun radiation
Abstract: Background: epigenomes can be influenced by environmental factors leading to the development of diseases. Objective: To investigate the influence of sun exposure on global DNA methylation and hydroxymethylation status and at specific sites of the miR-9-1, miR-9-3 and MTHFR genes in skin samples of subjects with no history of skin diseases. Metho
An. Bras. Dermatol.. Publicado em: 2017-12
-
23. Prevalence and factors associated with exposure to sunlight and sunscreen among physical education teachers in Pelotas, southern Brazil
Abstract: Background: Decreasing the time of exposure to the sun and increasing sunscreen use are important actions to prevent skin cancer. Objective: This study aimed to verify the prevalence of exposure to the sun and the use of sunscreen, as well as associated factors among physical education teachers of the basic education network from city of Pelotas,
An. Bras. Dermatol.. Publicado em: 2017-12
-
24. Prevalence of photoprotection and its associated factors in risk group for skin cancer in Teresina, Piauí
Abstract: Background: The incidence of skin cancer has increased worldwide, particularly melanoma rates, which had a mean development of 2.6 % a year in the last 10 years. The agreement on the relation between long-term or chronic exposure to the sun and the emergence of these neoplasias has made several workers who perform activities exposed to solar radia
An. Bras. Dermatol.. Publicado em: 2017-03