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Pesquisa : G01.358.500.505.650.836 [Categoria DeCS]
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  1 / 13102 MEDLINE  
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[PMID]:28985653
[Au] Autor:Amiri H; Nabizadeh R; Silva Martinez S; Jamaleddin Shahtaheri S; Yaghmaeian K; Badiei A; Nazmara S; Naddafi K
[Ad] Endereço:Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
[Ti] Título:Response surface methodology modeling to improve degradation of Chlorpyrifos in agriculture runoff using TiO solar photocatalytic in a raceway pond reactor.
[So] Source:Ecotoxicol Environ Saf;147:919-925, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:This paper deals with the use of a raceway pond reactor (RPR) as an alternative photoreactor for solar photocatalytic applications. Raceway pond reactors are common low-cost reactors which can treat large volumes of water. The experiments were carried out with TiO in the agriculture effluent spiked with Chlorpyrifos (CPF) at circumneutral pH. The Response Surface Methodology (RSM) was used to find the optimum process parameters to maximize CPF oxidation from the mathematical model equations developed in this study using R software. By ANOVA, p-value of lack of fit > 0.05 indicated that, the equation was well-fitted. The theoretical efficiency of CPF removal, under the optimum oxidation conditions with UV solar energy of around 697 ± 5.33 lux, was 84.01%, which is in close agreement with the mean experimental value (80 ± 1.42%) confirming that the response model was suitable for the optimization. As far as the authors know, this is the first study of CPF removal using RPR in agriculture runoff at circumneutral pH.
[Mh] Termos MeSH primário: Clorpirifos/análise
Modelos Teóricos
Tanques/química
Luz Solar
Titânio/química
Poluentes Químicos da Água/análise
[Mh] Termos MeSH secundário: Agricultura
Catálise
Clorpirifos/efeitos da radiação
Oxirredução
Propriedades de Superfície
Poluentes Químicos da Água/efeitos da radiação
Poluição da Água/prevenção & controle
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Water Pollutants, Chemical); 15FIX9V2JP (titanium dioxide); D1JT611TNE (Titanium); JCS58I644W (Chlorpyrifos)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171008
[St] Status:MEDLINE


  2 / 13102 MEDLINE  
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[PMID]:28460121
[Au] Autor:Dwi Sutanto K; El Salamouny S; Tufail M; Ghulam Rasool K; Sukirno S; Shepard M; Shapiro M; Saad Aldawood A
[Ad] Endereço:Economic Entomology Research Unit (EERU), Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia (kokodwisutanto@yahoo.com; said_elsalamouny@yahoo.com; mtufail@ksu.edu.sa; krasool@ksu.edu.sa; sukirnobiougm@ugm.ac.id; aldawood@ksu.ed
[Ti] Título:Evaluation of Natural Additives to Enhance the Persistence of Spodoptera littoralis (Lepidoptera: Noctuidae) Nucleopolyhedrovirus (SpliMNPV) Under Field Conditions in Saudi Arabia.
[So] Source:J Econ Entomol;110(3):924-930, 2017 06 01.
[Is] ISSN:1938-291X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Nucleopolyhedrovirus is an effective biocontrol agent but for its biggest disadvantage of short persistence under sunlight conditions. In this study, 10 plant extracts were evaluated as ultraviolet (UV) protectants to improve the persistence of Spodoptera littoralis multiple-embedded nucleopolyhedrovirus (SpliMNPV) against cotton leafworm (Spodoptera littoralis Boisduval). In the primary lab screening test, 5 out of 10 additives (cloves, henna, green tea, pomegranate, and grape extracts) presented a high rate of virus protection with original activity remaining (OAR) percentage of 100%, 97%, 91%, 90.6%, and 77%, respectively, when used at a concentration of 1% and exposed to UVB for a period of 1 h. A secondary screening was then performed with these best five extracts at a concentration of 0.5% and for an exposure timing of 5 h to UVB. Among these, clove and henna that showed highest protection with OAR values of 96.6% and 76.5%, respectively, were selected for the field trials. When applied on cabbage in the field during sunny summer conditions, clove and henna extracts enhanced the persistence of SpliMNPV by twofold. These findings are encouraging to be applied in the field studies.
[Mh] Termos MeSH primário: Nucleopolyhedrovirus/fisiologia
Controle Biológico de Vetores/métodos
Spodoptera/virologia
[Mh] Termos MeSH secundário: Animais
Larva/crescimento & desenvolvimento
Larva/virologia
Nucleopolyhedrovirus/efeitos da radiação
Arábia Saudita
Spodoptera/crescimento & desenvolvimento
Luz Solar
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1709
[Cu] Atualização por classe:180301
[Lr] Data última revisão:
180301
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170502
[St] Status:MEDLINE
[do] DOI:10.1093/jee/tox085


  3 / 13102 MEDLINE  
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[PMID]:29413990
[Au] Autor:Kelly J; Murphy JE
[Ad] Endereço:Mitochondrial Biology & Radiation Research Centre, Dept. of Life Sciences, Institute of Technology Sligo, Ash Lane, Sligo, Ireland. Electronic address: janiskelly@mail.itsligo.ie.
[Ti] Título:Mitochondrial gene expression changes in cultured human skin cells following simulated sunlight irradiation.
[So] Source:J Photochem Photobiol B;179:167-174, 2018 Feb.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Exposure of skin to simulated sunlight irradiation (SSI) has being extensively researched and shown to be the main cause for changes in the skin including changes in cellular function and generation of reactive oxygen species (ROS). This oxidative stress can subsequently exert downstream effects and the subcellular compartments most affected by this oxidative stress are mitochondria. The importance of functional mitochondrial morphology is apparent as morphological defects are related to many human diseases including diabetes mellitus, liver disease, neurodegenerative diseases, aging and cancer. OBJECTIVE: The main objective of this study was to evaluate solar radiation-induced changes in mitochondrial gene expression in human skin cells using a Q-Sun solar simulator to deliver a close match to the intensity of summer sunlight. METHODS: Spontaneously immortalised human skin epidermal keratinocytes (HaCaT) and Human Dermal Fibroblasts (HDFn) were divided into two groups. Group A were irradiated once and Group B twice 7days apart; following irradiation, mitochondrial gene expression was evaluated 1, 4 and 7days post primary exposure for group A and 1, 4, 7 and 14days post-secondary exposure for group B. RESULTS: Both the epidermal and dermal cells displayed significant reduced expression of the genes analysed for mitochondrial morphology and function; however, epidermal cells displayed this reduction post SSI earlier then dermal cells at multiple time points. CONCLUSION: The data presented here reinforces the fact that epidermal cells, while displaying a heightened sensitivity to sunlight, are less prone to changes in gene expression, while dermal cells, which appear to be more resilient are possibly more prone to genomic instability and mitochondrial damage.
[Mh] Termos MeSH primário: Expressão Gênica/efeitos da radiação
Mitocôndrias/genética
Luz Solar
[Mh] Termos MeSH secundário: ATPases Associadas a Diversas Atividades Celulares/genética
ATPases Associadas a Diversas Atividades Celulares/metabolismo
Linhagem Celular
Derme/citologia
Epiderme/citologia
GTP Fosfo-Hidrolases/genética
GTP Fosfo-Hidrolases/metabolismo
Seres Humanos
Queratinócitos/citologia
Queratinócitos/metabolismo
Queratinócitos/efeitos da radiação
Metaloendopeptidases/genética
Metaloendopeptidases/metabolismo
Mitocôndrias/efeitos da radiação
Proteínas de Transporte da Membrana Mitocondrial/genética
Proteínas de Transporte da Membrana Mitocondrial/metabolismo
Proteínas Mitocondriais/genética
Proteínas Mitocondriais/metabolismo
Espécies Reativas de Oxigênio/metabolismo
Reação em Cadeia da Polimerase Via Transcriptase Reversa
Superóxido Dismutase/genética
Superóxido Dismutase/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Mitochondrial Membrane Transport Proteins); 0 (Mitochondrial Proteins); 0 (Reactive Oxygen Species); EC 1.15.1.1 (Superoxide Dismutase); EC 1.15.1.1 (superoxide dismutase 2); EC 3.4.24.- (Metalloendopeptidases); EC 3.4.24.- (YME1L1 protein, human); EC 3.6.1.- (GTP Phosphohydrolases); EC 3.6.1.- (MFN2 protein, human); EC 3.6.1.- (OPA1 protein, human); EC 3.6.4.- (ATPases Associated with Diverse Cellular Activities); EC 3.6.5.- (Mfn1 protein, human)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180208
[St] Status:MEDLINE


  4 / 13102 MEDLINE  
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[PMID]:29367148
[Au] Autor:Ting JJ
[Ad] Endereço:De-Font Research Institute, Taichung 40344, Taiwan, ROC. Electronic address: juhilian@gmail.com.
[Ti] Título:Proposal for verifying dipole properties of light-harvesting antennas.
[So] Source:J Photochem Photobiol B;179:134-138, 2018 Feb.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:For light harvesters with a reaction center complex (LH1-RC complex) of three types, we propose an experiment to verify our analysis based upon antenna theories that automatically include the required structural information. Our analysis conforms to the current understanding of light-harvesting antennas in that we can explain known properties of these complexes. We provide an explanation for the functional roles of the notch at the light harvester, a functional role of the polypeptide called PufX or W at the opening, a functional role of the special pair, a reason that the cross section of the light harvester must not be circular, a reason that the light harvester must not be spherical, reasons for the use of dielectric bacteriochlorophylls instead of conductors to make the light harvester, a mechanism to prevent damage from excess sunlight, an advantage of the dimeric form, and reasons for the modular design of nature. Based upon our analysis we provide a mechanism for dimerization. We predict that the dimeric form of light-harvesting complexes is favored under intense sunlight. We further comment upon the classification of the dimeric or S-shape complexes. The S-shape complexes should not be considered as the third type of light harvester but simply as a composite form.
[Mh] Termos MeSH primário: Complexos de Proteínas Captadores de Luz/metabolismo
Modelos Moleculares
[Mh] Termos MeSH secundário: Bacterioclorofilas/química
Bacterioclorofilas/metabolismo
Dimerização
Complexos de Proteínas Captadores de Luz/química
Luz Solar
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bacteriochlorophylls); 0 (Light-Harvesting Protein Complexes)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180126
[St] Status:MEDLINE


  5 / 13102 MEDLINE  
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[PMID]:29334624
[Au] Autor:Guzikowski J; Krzyscin J; Czerwinska A; Raszewska W
[Ad] Endereço:Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland.
[Ti] Título:Adequate vitamin D skin synthesis versus erythema risk in the Northern Hemisphere midlatitudes.
[So] Source:J Photochem Photobiol B;179:54-65, 2018 Feb.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Health-optimum-exposure index (HOEI) is proposed to assess if the prescribed amount of vitamin D (target value) could be synthesized in the human skin without erythema appearance. It is defined as the ratio between the vitamin D quantity received during the maximum allowed outdoor exposure without erythema risk and the target value. Sunbathing is safe for HOEI>1 and 1/HOEI represents a part of minimal erythema dose (MED) necessary to obtain the target value. We examine the following targets: a vitamin D quantity equivalent to 1000 IU vitamin D taken orally, and an optimal vitamin D quantity defined by Krzyscin et al. (2016). The biologically weighted (previtamin D and erythemal) doses from the Northern Hemisphere midlatitudinal stations are analyzed to find HOEI dependence on personal and meteorological factors. HOEI depends mostly on the exposed skin area, person's age, and sun elevation at noon but not on the Fitzpatrick skin phototype. We found that only young adults (<21 yr) could safely obtain vitamin D quantity, which is equivalent to 1000 IU taken orally, almost throughout the whole year. Duration of such exposures appears <1 h only in the warm subperiods of the year (April-September) for a person with minimal erythema dose of 330 J m . Exposing larger part of the body (~30%) enables the oldest persons (>59 yr) to reach 1000 IU target during warm days in spring and summer. The optimal daily vitamin D quantity could only be synthesized only by young adults for about 40-60% of days in the May-August period if they expose at least 1/3 part of their body surface area. Vitamin D supplementation seems to be necessary over the whole year for the oldest persons with daily dosage of ~2000 IU but reduced to ~1000 IU in summer for sunseekers exposing significant part of the body.
[Mh] Termos MeSH primário: Colecalciferol/biossíntese
Eritema/etiologia
Pele/efeitos da radiação
Luz Solar
[Mh] Termos MeSH secundário: Colecalciferol/análise
Seres Humanos
Meia-Idade
Fenótipo
Estações do Ano
Pele/metabolismo
Temperatura Ambiente
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
1C6V77QF41 (Cholecalciferol)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180116
[St] Status:MEDLINE


  6 / 13102 MEDLINE  
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[PMID]:29289927
[Au] Autor:Rajeswari A; Jackcina Stobel Christy E; Pius A
[Ad] Endereço:Department of Chemistry, The Gandhigram Rural Institute - Deemed University, Gandhigram, Dindigul 624 302, Tamil Nadu, India.
[Ti] Título:New insight of hybrid membrane to degrade Congo red and Reactive yellow under sunlight.
[So] Source:J Photochem Photobiol B;179:7-17, 2018 Feb.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:A study was carried out to investigate the degradation of organic contaminants (Congo red and Reactive yellow - 105) using cellulose acetate - polystyrene (CA-PS) membrane with and without ZnO impregnation. Scanning electron microscope (SEM), electron dispersive analysis of X-rays (EDAX), Fourier transform infrared spectrometer (FTIR), atomic force microscope (AFM) and thermogravimeric analysis (TG-DTA) analysis were carried out to characterize bare and ZnO impregnated CA-PS membranes. Membrane efficiency was also tested for pure water flux and antifouling performance. The modified membrane showed almost 85% water flux recovery. Blending of ZnO nanoparticles to CA-PS matrix could decrease membrane fouling and increase permeation quality of the membrane with above 90% of photocatalytic degradation efficiency for dyes. The rate of degradation of dyes was observed using UV-Vis spectrometer. Reusability of CA-PS-ZnO membrane was studied and no significant change was noted in the degradation efficiency until fourth cycle. Langmuir-Hinshelwood kinetic model well describes the photo degradation capacity and the degradation of dyes CR and RY - 105 exhibited pseudo-first order kinetics. The regression coefficient (R) of CR and RY - 105 found to be 0.99. The novelty of the prepared CA-PS-ZnO membrane is that it has better efficiency and high thermal stability than our previously reported material. Therefore, ZnO impregnated CA-PS membrane had proved to be an innovative alternative for the degradation of CR and RY - 105 dyes.
[Mh] Termos MeSH primário: Corantes/química
Vermelho Congo/química
Nanocompostos/química
Fotólise/efeitos da radiação
Luz Solar
Óxido de Zinco/química
[Mh] Termos MeSH secundário: Catálise
Celulose/análogos & derivados
Celulose/química
Microscopia de Força Atômica
Microscopia Eletrônica de Varredura
Poliestirenos/química
Espectrofotometria
Espectroscopia de Infravermelho com Transformada de Fourier
Termogravimetria
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Coloring Agents); 0 (Polystyrenes); 3J2P07GVB6 (acetylcellulose); 3U05FHG59S (Congo Red); 9004-34-6 (Cellulose); SOI2LOH54Z (Zinc Oxide)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180101
[St] Status:MEDLINE


  7 / 13102 MEDLINE  
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[PMID]:29272851
[Au] Autor:Zaheer Z
[Ad] Endereço:Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21413, Saudi Arabia. Electronic address: zzkhan@kau.edu.sa.
[Ti] Título:Biogenic synthesis, optical, catalytic, and in vitro antimicrobial potential of Ag-nanoparticles prepared using Palm date fruit extract.
[So] Source:J Photochem Photobiol B;178:584-592, 2018 Jan.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Silver nanoparticles (AgNPs) have been synthesized via green route using an aqueous extract of Palm date fruit pericarp extract. The appearance of the yellow color and the surface resonance plasmon (SRP) band at around 400-450nm in UV-Visible spectroscopy initially reveals the formation of AgNPs. The particle size, crystalline nature, and size distribution was confirmed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED) ring patterns, energy dispersive X-ray spectroscopy (EDX), dynamic light scattering (DLS) techniques. The particles size ranged ca. 3nm to 30nm and are spherical in shape. The microbial activity of biogenic AgNPs was tested on clinical multiple drug resistance Staphylococcus aureus, Escherichia coli and Candida albicans reference strain. Zones of inhibition growth increases with [AgNPs]. The results suggest that the particle tested in this study certainly mediate the inhibition of bacterial and fungus growth. To overcome the serious problems related to environment like discharge of hazardous chemicals to water bodies, AgNPs have been found to be very important in the catalytic degradation of 4-nitrophenol. The rate of degradation strongly depends on the sun light exposure. Based on the chemical and kinetic studies, an attempt has been made to elucidate the mechanism of AgNPs formation.
[Mh] Termos MeSH primário: Anti-Infecciosos/síntese química
Nanopartículas Metálicas/química
Phoeniceae/química
Prata/química
[Mh] Termos MeSH secundário: Anti-Infecciosos/química
Anti-Infecciosos/farmacologia
Candida albicans/efeitos dos fármacos
Catálise
Difusão Dinâmica da Luz
Escherichia coli/efeitos dos fármacos
Frutas/química
Frutas/metabolismo
Química Verde
Nanopartículas Metálicas/toxicidade
Microscopia Eletrônica de Varredura
Nitrofenóis/química
Tamanho da Partícula
Phoeniceae/metabolismo
Fotólise/efeitos da radiação
Extratos Vegetais/química
Espectrometria por Raios X
Espectrofotometria
Staphylococcus aureus/efeitos dos fármacos
Luz Solar
Ressonância de Plasmônio de Superfície
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Infective Agents); 0 (Nitrophenols); 0 (Plant Extracts); 3M4G523W1G (Silver); Y92ZL45L4R (4-nitrophenol)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171223
[St] Status:MEDLINE


  8 / 13102 MEDLINE  
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[PMID]:29304104
[Au] Autor:Uyi OO; Zachariades C; Heshula LU; Hill MP
[Ad] Endereço:Department of Zoology and Entomology, University of Fort Hare, Alice, South Africa.
[Ti] Título:Developmental and reproductive performance of a specialist herbivore depend on seasonality of, and light conditions experienced by, the host plant.
[So] Source:PLoS One;13(1):e0190700, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Host plant phenology (as influenced by seasonality) and light-mediated changes in the phenotypic and phytochemical properties of leaves have been hypothesised to equivocally influence insect herbivore performance. Here, we examined the effects of seasonality, through host plant phenology (late growth-season = autumn vs flowering-season = winter) and light environment (shade vs full-sun habitat) on the leaf characteristics of the invasive alien plant, Chromolaena odorata. In addition, the performance of a specialist folivore, Pareuchaetes insulata, feeding on leaves obtained from both shaded and full-sun habitats during autumn and winter, was evaluated over two generations. Foliar nitrogen and magnesium contents were generally higher in shaded plants with much higher levels during winter. Leaf water content was higher in shaded and in autumn plants. Total non-structural carbohydrate (TNC) and phosphorus contents did not differ as a function of season, but were higher in shaded foliage compared to full-sun leaves. Leaf toughness was noticeably higher on plants growing in full-sun during winter. With the exception of shaded leaves in autumn that supported the best performance [fastest development, heaviest pupal mass, and highest growth rate and Host Suitability Index (HSI) score], full-sun foliage in autumn surprisingly also supported an improved performance of the moth compared to shaded or full-sun leaves in winter. Our findings suggest that shaded and autumn foliage are nutritionally more suitable for the growth and reproduction of P. insulata. However, the heavier pupal mass, increased number of eggs and higher HSI score in individuals that fed on full-sun foliage in autumn compared to their counterparts that fed on shaded or full-sun foliage in winter suggest that full-sun foliage during autumn is also a suitable food source for larvae of the moth. In sum, our study demonstrates that seasonal and light-modulated changes in leaf characteristics can affect insect folivore performance in ways that are not linear.
[Mh] Termos MeSH primário: Chromolaena/fisiologia
Herbivoria
Mariposas/fisiologia
Estações do Ano
Luz Solar
[Mh] Termos MeSH secundário: Animais
Biomassa
Chromolaena/efeitos da radiação
Comportamento Alimentar
Feminino
Espécies Introduzidas
Magnésio/metabolismo
Masculino
Nitrogênio/metabolismo
Folhas de Planta/fisiologia
Reprodução/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
I38ZP9992A (Magnesium); N762921K75 (Nitrogen)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180210
[Lr] Data última revisão:
180210
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180106
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190700


  9 / 13102 MEDLINE  
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[PMID]:29374755
[Au] Autor:Lindqvist PG
[Ad] Endereço:Clintec, Karolinska Institute, Stockholm, Sweden pelle.lindqvist@ki.se.
[Ti] Título:The Winding Path Towards an Inverse Relationship Between Sun Exposure and All-cause Mortality.
[So] Source:Anticancer Res;38(2):1173-1178, 2018 02.
[Is] ISSN:1791-7530
[Cp] País de publicação:Greece
[La] Idioma:eng
[Ab] Resumo:For a long time, skin cancer has been known to be related to extensive UV exposure. New emerging data have, however, shown low UV exposure/low vitamin D levels to be related to increased mortality rate due to skin cancer. In addition, low sun exposure habits in regions of low solar intensity have been shown to be a major risk factor for all-cause mortality in the same range as that for smoking. This is mainly due to lower all-cause mortality due to cardiovascular disease (CVD) and non-CVD/non-cancer disease among women with active sun exposure. Women with active sun exposure habits were estimated to have a 1- to 2-year longer life-expectancy during the Melanoma in Southern Sweden study interval. These findings are in line with those to be expected from an evolutionary perspective and research findings, but in opposition to present guidelines and recommendations.
[Mh] Termos MeSH primário: Neoplasias Cutâneas/mortalidade
Luz Solar/efeitos adversos
Raios Ultravioleta/efeitos adversos
[Mh] Termos MeSH secundário: Seres Humanos
Neoplasias Cutâneas/etiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180207
[Lr] Data última revisão:
180207
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180129
[St] Status:MEDLINE


  10 / 13102 MEDLINE  
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[PMID]:29102867
[Au] Autor:Murillo-Sierra JC; Sirés I; Brillas E; Ruiz-Ruiz EJ; Hernández-Ramírez A
[Ad] Endereço:Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Av. Universidad, Ciudad Universitaria, San Nicolás de los Garza, Nuevo León, Mexico.
[Ti] Título:Advanced oxidation of real sulfamethoxazole + trimethoprim formulations using different anodes and electrolytes.
[So] Source:Chemosphere;192:225-233, 2018 Feb.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A commercial sulfamethoxazole + trimethoprim formulation has been degraded in 0.050 M Na SO at pH 3.0 by electrochemical oxidation with electrogenerated H O (EO-H O ), electro-Fenton (EF), photoelectro-Fenton with a 6-W UVA lamp (PEF) and solar photoelectro-Fenton (SPEF). The tests were performed in an undivided cell with an IrO -based, Pt or boron-doped diamond (BDD) anode and an air-diffusion cathode for H O electrogeneration. The anode material had little effect on the accumulated H O concentration. Both drugs always obeyed a pseudo-first-order decay with low apparent rate constant in EO-H O . Much higher values were found in EF, PEF and SPEF, showing no difference because the main oxidant was always OH formed from Fenton's reaction between H O and added Fe . The solution mineralization increased in the sequence EO-H O < EF < PEF < SPEF regardless of the anode. The IrO -based and Pt anodes behaved similarly but BDD was always more powerful. In SPEF, similar mineralization profiles were found for all anodes because of the rapid removal of photoactive intermediates by sunlight. About 87% mineralization was obtained as maximum for the powerful SPEF with BDD anode. Addition of Cl enhanced the decay of both drugs due to their quicker reaction with generated active chlorine, but the formation of persistent chloroderivatives decelerated the mineralization process. Final carboxylic acids like oxalic and oxamic were detected, yielding Fe(III) complexes that remained stable in EF with BDD but were rapidly photolyzed in SPEF with BDD, explaining its superior mineralization ability.
[Mh] Termos MeSH primário: Anti-Infecciosos/química
Água Doce/química
Sulfametoxazol/química
Trimetoprima/química
Poluentes Químicos da Água/química
[Mh] Termos MeSH secundário: Boro/química
Diamante/química
Eletroquímica
Eletrodos
Compostos Férricos/química
Água Doce/análise
Peróxido de Hidrogênio/química
Oxirredução
Fotólise
Luz Solar
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Infective Agents); 0 (Ferric Compounds); 0 (Water Pollutants, Chemical); 7782-40-3 (Diamond); AN164J8Y0X (Trimethoprim); BBX060AN9V (Hydrogen Peroxide); JE42381TNV (Sulfamethoxazole); N9E3X5056Q (Boron)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180130
[Lr] Data última revisão:
180130
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171106
[St] Status:MEDLINE



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