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Mostrando 13-24 de 216 artigos, teses e dissertações.
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13. FTIR study of aquamarines after gamma irradiation, heat treatment and electrodiffusion
Abstract Beryl, Be3Al2(SiO3)6, is a natural gemstone with many colors. Some of these colors can be induced or modified by exposure to ionizing radiation, by heating, and maybe by electrodiffusion. Small contents of chromophore chemical elements are related to the colors of beryl, like iron, chromium, vanadium, manganese, and others. There is great interest i
REM, Int. Eng. J.. Publicado em: 2017-09
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14. Morphological analysis and DNA methylation in Conyza bonariensis L. cronquist (Asteraceae) phenotypes
ABSTRACT The species Conyza bonariensis (L.) cause losses in agriculture due to their invasive capacity and resistance to herbicides like glyphosate. The species of this genus exhibit phenotypic plasticity, which complicates their identification and characterization. Thus, experiments were performed with 2 extreme C. bonariensis phenotypes (called broad leaf
Bragantia. Publicado em: 14/08/2017
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15. Gestational diabetes mellitus and type 2 diabetes: same disease in a different moment of life? Maybe not
Arch. Endocrinol. Metab.. Publicado em: 2017-06
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16. Growth and Characterization of AlxGa1-xAs Obtained by Metallic-Arsenic-Based-MOCVD
In this work reports results related to growth and characterization of AlxGa1-xAs epilayers, which were grown in a metallic-arsenic-based-MOCVD system. The gallium and aluminium used precursors were trimethylgallium (TMGa) and trimethylaluminium (TMAl), respectively. By photoluminescence measurements observed, that only samples grown at temperatures above 80
Mat. Res.. Publicado em: 23/03/2017
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17. The acceptability of vaginal smear self-collection for screening for cervical cancer: a systematic review
Cervical cancer is a major cause of death in adult women. However, many women do not undergo cervical cancer screening for the following reasons: fear, shame, physical limitations, cultural or religious considerations and lack of access to health care services. Self-collected vaginal smears maybe an alternative means of including more women in cervical cance
Clinics. Publicado em: 2017-03
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18. Low Cost Simulator for Heart Surgery Training
Abstract Objective: Introduce the low-cost and easy to purchase simulator without biological material so that any institution may promote extensive cardiovascular surgery training both in a hospital setting and at home without large budgets. Methods: A transparent plastic box is placed in a wooden frame, which is held by the edges using elastic bands, with
Braz. J. Cardiovasc. Surg.. Publicado em: 2016-12
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19. Oxidative stress in carotid arteries of patients submitted to carotid endarterectomy. The role of aging process
ABSTRACT PURPOSE: To evaluated the role of oxidative stress on aging process in patients submitted to carotid endarterectomy. METHODS: Twenty patients were divided into two groups: older group (≥ 70 years old); and the younger group (< 70 years old). We evaluated the reactive oxygen species (ROS) concentration, nicotinamide adenine dinucleotide phospha
Acta Cir. Bras.. Publicado em: 2016-08
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20. The South-American rattlesnake Crotalus durissus: feeding ecology in the central region of Brazil
Abstract We investigated food patterns in the diet composition of 452 specimens of Crotalus durissus from Central Brazil. Thirty-three items were recorded corresponding to four categories: rodents (75.76%), marsupials (6.06%), unidentified mammals (9.09%) and reptiles (9.09%). Adults of both sexes and some juveniles feed mostly on mammals, specifically roden
Biota Neotrop.. Publicado em: 21/07/2016
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21. Nuevas definiciones de evidencia en la Medicina contemporánea: aportes desde la Antropología
Abstract This article explores the "productive" importance of the Humanities and Social Sciences - Anthropology particularly - through the revision of the "impact" produced in an eminently empirical field: Medicine, particularly after the hegemony of Evidence Based Medicine (EBM). The impact of the Humanities in general and Anthropology in particular has a t
Saude soc.. Publicado em: 2016-03
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22. Involvement of GABAergic pathway in the sedative activity of apigenin, the main flavonoid from Passiflora quadrangularis pericarp
Abstract In the current study we showed that oral administration of an aqueous extract of Passiflora quadrangularis L., Passifloraceae, pericarp results in a significant prolongation of the sleep duration in mice evaluated in the ethyl ether-induced hypnosis test which indicates sedative effects. Apigenin, the main flavonoid of the extract, induced a similar
Rev. bras. farmacogn.. Publicado em: 2015-04
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23. Effect of high hydrostatic pressure on antioxidant content of 'Ataulfo' mango during postharvest maturation
The objective of this study was to evaluate the effect of pressurization on the concentration of some antioxidant compounds and the antiradical efficiency during the ripening process of 'Ataulfo' mango. The fruits at physiological maturity stage were pressurized at 15, 30, or 60 MPa for 10 or 20 min. Control fruits were not pressurized. The fruits were store
Food Sci. Technol. Publicado em: 06/08/2013
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24. An easy and efficient strategy for KEL genotyping in a multiethnic population
BACKGROUND: The Kell blood group system expresses high and low frequency antigens with the most important in relation to transfusion including the antithetic KEL1 and KEL2; KEL3 and KEL4; KEL6 and KEL7 antigens. Kell is a clinically relevant system, as it is highly immunogenic and anti-KEL antibodies are associated with hemolytic transfusion reactions and he
Rev. Bras. Hematol. Hemoter.. Publicado em: 2013