Results 1 to 10 of about 512 (149)

Fator de proteção solar: significado e controvérsias Sun protection factor: meaning and controversies [PDF]

Anais Brasileiros de Dermatologia, 2011
O Fator de Proteção Solar (FPS) é o principal dado para quantificação da eficácia fotoprotetora de um filtro solar, sendo universalmente aceito. Seu método é baseado na determinação da Dose Eritematosa Mínima (DEM), definida como sendo a menor quantidade
Sergio Schalka, Vitor Manoel Silva dos Reis   +1 more
doaj   +6 more sources

Determination of sun exposure and photoprotection habits in individuals who perform outdoor exercises, in the Venezuelan Andean region

Iatreia, 2023
Background: Frequent and indiscriminate sun exposure has determined an increase in skin cancer rates globally. In Venezuela, reports evaluating sun exposure practices and the use of photoprotection measures are limited.
Aguasanta González-Delatorre, Guillermo Terán-Ángel, María Eugenia Ortega-Moreno, Luisa Elena Montilla-Calderón   +3 more
doaj   +1 more source

NHC‐Stabilized Iridium Nanoparticles as Catalysts in Hydrogen Isotope Exchange Reactions of Anilines

Angewandte Chemie, Volume 132, Issue 9, Page 3545-3550, February 24, 2020., 2020
Aller Austausch ist schwer: Durch N‐heterocyclische Carbene stabilisierte Iridium‐Nanopartikel wurden hergestellt und in Wasserstoff‐Isotopenaustauschreaktionen eingesetzt. Die unter Luft stabilen und einfach handhabbaren Nanopartikel ermöglichen den selektiven und effizienten Einbau von D und T in Aniline mit D2 und T2 als Quelle.
Mégane Valero, Donia Bouzouita, Alberto Palazzolo, Jens Atzrodt, Christophe Dugave, Simon Tricard, Sophie Feuillastre, Grégory Pieters, Bruno Chaudret, Volker Derdau   +9 more
wiley   +2 more sources

Multifunctional bismuth oxide (Bi2O3) particles: Evidence for selective melanoma therapy

Journal of Biomedical Materials Research Part A, Volume 111, Issue 8, Page 1253-1263, August 2023., 2023
Abstract The current study investigates the therapeutic and optical properties of bismuth oxide (Bi2O3) particles for selective melanoma therapy and prevention. The Bi2O3 particles were prepared using a standard precipitation method. The Bi2O3 particles induced apoptosis in human A375 melanoma cells but not human HaCaT keratinocytes or CCD‐1090Sk ...
Marcela Laura Chaki Borrás, Georgia Colbran, David R. G. Mitchell, Philip J. Barker, Ronald Sluyter, Konstantin Konstantinov   +5 more
wiley   +1 more source

Prevalence of photoprotection and its associated factors in risk group for skin cancer in Teresina, Piauí [PDF]

Anais Brasileiros de Dermatologia, 2017
: 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.
Fernanda Ayres de Morais e Silva Cardoso, Gerardo Vasconcelos Mesquita, Viriato Campelo, Maria do Carmo de Carvalho e Martins, Camila Aparecida Pinheiro Landim Almeida, Regina Silva Rabelo, Amanda Eugênia Almeida Rocha, Jadson Lener Oliveira dos Santos   +7 more
doaj   +1 more source

Non-use of sunscreen among adults and the elderly in southern Brazil [PDF]

Anais Brasileiros de Dermatologia, 2019
Background One of the main prevention methods against skin cancer is the use of sunscreen; however, incidence of this disease has not declined despite prevention campaigns.
Elizabet Saes da Silva, Samuel Carvalho Dumith   +1 more
doaj   +1 more source

Knowledge and habits of solar exposure in street traders of a market in Chiclayo, Peru

Revista de la Facultad de Medicina Humana, 2020
Background: people who work outdoors are exposed to long periods of ultraviolet radiation; such is the case of street vendors. Objectives: determine the knowledge and habits of solar exposition in itinerant traders around a Chiclayo market. Materials and
Sherly Raquel Sempértegui-Ruiz , Carol Jennifer del Milagro Nuñez-Campos , Maxi Andrea Bustios-Ahumada , Andrés Eduardo Arenas-Piscoya , Cynthia Lizeth Estela-Moreto , Winston Maldonado-Gómez, Sebastian Iglesias-Osores, Alain Monsalve-Mera   +7 more
doaj   +1 more source

Evaluation of vitamin D plasma levels after mild exposure to the sun with photoprotection [PDF]

Anais Brasileiros de Dermatologia, 2019
: 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 ...
Luiza Alonso Pereira, Flávio Barbosa Luz, Clívia Maria Moraes de Oliveira Carneiro, Ana Lucia Rampazzo Xavier, Salim Kanaan, Hélio Amante Miot   +5 more
doaj   +1 more source

Albinism: epidemiology, genetics, cutaneous characterization, psychosocial factors [PDF]

Anais Brasileiros de Dermatologia, 2019
Oculocutaneous albinism is an autosomal recessive disease caused by the complete absence or decrease of melanin biosynthesis in melanocytes. Due to the reduction or absence of melanin, albinos are highly susceptible to the harmful effects of ultraviolet ...
Carolina Reato Marçon, Marcus Maia
doaj   +1 more source

New methods for assessing secondary performance attributes of sunscreens suitable for professional outdoor work

Journal of Occupational Medicine and Toxicology, 2021
Background Outdoor workers (OW) are highly exposed to solar ultraviolet radiation (UVR) and thus at increased risk for developing skin cancer. An essential part of an overall strategy to reduce workplace UVR-exposure to OW’s skin is the usage of ...
Marc Rocholl, Patricia Weinert, Stephan Bielfeldt, Sabrina Laing, Klaus Peter Wilhelm, Claas Ulrich, Swen Malte John   +6 more
doaj   +1 more source