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Search Results: 1 - 10 of 467419 matches for " S?nia Maria O.; "
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Health workers’ attitudes toward immigrant patients: a cross-sectional survey in primary health care services
Sónia Dias, Ana Gama, Helena Cargaleiro, Maria O Martins
Human Resources for Health , 2012, DOI: 10.1186/1478-4491-10-14
Abstract: This cross-sectional study was conducted with a random sample of 400 health workers from primary health care services in the Lisbon region, Portugal. Among those, 320 completed a structured questionnaire. Descriptive analysis and multiple linear regression analysis were used for the evaluation of data.Most participants did not agree that immigrant patients tend to behave like victims, but about half considered that some are aggressive and dangerous. Doctors and nurses showed more positive attitudes than office workers. Among doctors, the older ones reported less positive attitudes compared to the younger ones. Health workers who have less daily contact with immigrants revealed more positive attitudes. Most participants evaluated their knowledge and competencies to work with immigrants as moderate or low.Although health workers reveal positive attitudes, this study reinforces the need to develop strategies that prevent negative attitudes and stereotyping in health services. Efforts should be made to improve workers’ competencies to deal with culturally diverse populations, in order to promote quality of health care and obtain positive health outcomes among immigrant populations.
Structural and ultrastructural characterization of zebu (Bosindicus) spermatozoa
Aquino Luque,Maria Carolina; Báo,Snia Nair;
Biocell , 2006,
Abstract: the ultrastructure of normal, ejaculated spermatozoa of bos indicus was studied by means of electron microscopy, being evaluated in two principal parts, the head and the tail. the head is flat, oval or paddle-shaped with a square base, which provides a concave recess for the insertion of the tail. the acrosome tightly covers the anterior two thirds of the nucleus. a distinct unilateral acrosomal bulge was observed along the apical edge of the head. the equatorial region demarcates the acrosome from the post-equatorial region that covers the caudal one third of the nucleus. the classical 9+9+2 fiber pattern which composes the axoneme was observed along three segments of the tail, namely middle, principal and terminal pieces. the axoneme is anteriorly bound by the mitochondrial helix (middle piece) and posteriorly by the fibrous helix (principal piece), except at the terminal piece. the border between the middle piece and principal piece was well defined due to the termination of the thick mitochondrial helix and the presence of the annulus. some of the spermatozoa presented cytoplasmatic droplets, which appeared as stalk-like appendages.
Standing-stock and potential of phytoplankton production in the Bay of Santos, Brazil
Gianesella-Galv?o, Snia Maria Flores;
Boletim do Instituto Oceanográfico , 1982, DOI: 10.1590/S0373-55241982000200009
Abstract: phytoplankton primary production and the maximum photo synthetic index (pbm) from the region of bay of santos were measured every two months during 1976 by simulated incubations using 14c method and incandescent lamps (737 μe.m-2 .s-140 klux) . the results obtained for production rates (maximum of 204.6 mgc.m-3.hr-1 in winter and 488.3 mgc m-3.hr-1 in summer) are among the highest recorded for tropical marine environments. a high capability of light adaptation under high temperatures was also verified. the photo synthetic indexes obtained were also very high and seems to be due to the high nutrient level of the region. the eutrophic state is supported by the high nutrient and chlorophyll-a concentrations and by the phytoplankton cells number.
Standing-stock and potential of phytoplankton production in the bay of Santos, Brazil
Gianesella-Galv?o, Snia Maria Flores;
Brazilian Journal of Oceanography , 1982, DOI: 10.1590/S1679-87591982000200009
Abstract: phytoplankton primary production and the maximum photo synthetic index (pbm) from the region of bay of santos were measured every two months during 1976 by simulated incubations using 14c method and incandescent lamps (737 μe.m-2 .s-140 klux) . the results obtained for production rates (maximum of 204.6 mgc.m-3.hr-1 in winter and 488.3 mgc m-3.hr-1 in summer) are among the highest recorded for tropical marine environments. a high capability of light adaptation under high temperatures was also verified. the photo synthetic indexes obtained were also very high and seems to be due to the high nutrient level of the region. the eutrophic state is supported by the high nutrient and chlorophyll-a concentrations and by the phytoplankton cells number.
Structural and ultrastructural characterization of zebu (Bosindicus) spermatozoa
Maria Carolina Aquino Luque,Snia Nair Báo
Biocell , 2006,
Abstract: The ultrastructure of normal, ejaculated spermatozoa of Bos indicus was studied by means of electron microscopy, being evaluated in two principal parts, the head and the tail. The head is flat, oval or paddle-shaped with a square base, which provides a concave recess for the insertion of the tail. The acrosome tightly covers the anterior two thirds of the nucleus. A distinct unilateral acrosomal bulge was observed along the apical edge of the head. The equatorial region demarcates the acrosome from the post-equatorial region that covers the caudal one third of the nucleus. The classical 9+9+2 fiber pattern which composes the axoneme was observed along three segments of the tail, namely middle, principal and terminal pieces. The axoneme is anteriorly bound by the mitochondrial helix (middle piece) and posteriorly by the fibrous helix (principal piece), except at the terminal piece. The border between the middle piece and principal piece was well defined due to the termination of the thick mitochondrial helix and the presence of the annulus. Some of the spermatozoa presented cytoplasmatic droplets, which appeared as stalk-like appendages.
O movimento feminista brasileiro na virada do século XX: reflex?es sobre sujeitos políticos na interface com as no??es de democracia e autonomia
Adri?o, Karla Galv?o;Toneli, Maria Juracy Filgueiras;Maluf, Snia Weidner;
Revista Estudos Feministas , 2011, DOI: 10.1590/S0104-026X2011000300002
Abstract: this article discusses the tensions surrounding the legitimacy of the brazilian feminist political subjects in the interface with the concepts of democracy and autonomy. the study adopts an ethnography perspective to analyze the 10th latin american and caribbean feminist meeting, held in s?o paulo in 2005, an important space for the constitution of the thoughts and actions of the feminist movement in brazil and latin america.
A??o antioxidante de chás e condimentos de grande consumo no Brasil
Morais, Selene M. de;Cavalcanti, Eveline S. B.;Costa, Snia Maria O.;Aguiar, Liza A.;
Revista Brasileira de Farmacognosia , 2009, DOI: 10.1590/S0102-695X2009000200023
Abstract: antioxidants are compounds that remove free-radicals or minimize their availability to generate oxidative stress. teas are popular beverages providing a significant source of phenolic compounds, important components of the human diet due to their antioxidant properties. the present work had the objective of evaluate the antioxidant action of teas and seasonings more consumed in brazil. the analysed teas were from the plants: pneumus boldus mold., matricaria recutita l., cymbopogon citratus (dc) stapf, baccharis trimera (less.) dc, camelia sinensis (l) o. kuntze (fermented), camelia sinensis (not-fermented), lippia alba n.e. brown, mentha arvensis l. and pyrus malus l. the studied seasonings were: eugenia aromatica baill, cinnamonum zeylanicum blume, laurus nobilis l. and origanum vulgare l. the antioxidant activity was measured by the dpph free radical scavenging method. all analysed samples demonstrated antioxidant activities. camelia sinensis (not-fermented) (ic50= 0.14 mg/ml), was the most active and active principles are epicalocatechins. the stronger antioxidant seasonings were cinnamonum zeylanicum (ic50 = 0.37 mg/ml), eugenia aromatica baill (ic50= 0.46 mg/ ml and laurus nobilis (ic50 = 0.76 mg/ml), which presented as main antioxidant component eugenol.
Substancias de origem vegetal potencialmente úteis na terapia da asma
Corrêa, Maria Fernanda P.;Melo, Giany O. de;Costa, Snia S.;
Revista Brasileira de Farmacognosia , 2008, DOI: 10.1590/S0102-695X2008000500025
Abstract: asthma is a chronic inflammatory disease, which represents a huge public health problem in developed and developing countries, has high death rates and elevated socioeconomic implications. the pathology is characterized by two different phases: the initial stage, mediated by acute inflammatory cell response and the late phase, responsible for specific immune cells. currently, the main drugs used for asthma treatment are bronchodilator and anti-inflammatory agents, which mechanisms focus the relief of symptoms and attenuation of airway inflammation. however, therapies with those drugs have side effects besides they are not totally effective. poor accessibility in the development countries and scarcity of safety drugs lead the search for new drugs to asthma treatment. herbal natural products have elevated pharmacological potential against asthma, once they provide several molecules with specific mechanisms for the pathology control and treatment. thus, search in herbal natural products plays an important role to find out specific and effective mechanisms.
Heat Treatment and Thirty-Day Storage Period Do Not Affect the Stability of Omega-3 Fatty Acid in Brown Flaxseed (Linum Usitatissimum) Whole Flour  [PDF]
Dayane de C. Morais, érica A. Moraes, Maria Inês de S. Dantas, Júlia C. C. Carraro, Cassiano O. da Silva, Paulo R. Cecon, Hércia S. Duarte Martino, Snia M. Rocha Ribeiro
Food and Nutrition Sciences (FNS) , 2011, DOI: 10.4236/fns.2011.24040
Abstract: This study was conducted to verify if the processing and storage of brown flaxseed whole flour result in loss of func-tional properties, such as reduced linolenic acid content, increased lipid peroxidation and sensory changes. The flours were obtained from seeds dried by heat treatment in oven at 150?C, for 15 minutes and subsequent grinding to obtain flour with a particle size of 20 mesh. Meal samples, with and without synthetic antioxidants (BHA and BHT combined, at 100 ppm each), were stored for a thirty-day period, under similar conditions to those used commercially. The linolenic acid content was quantified by gas chromatography. Lipid peroxidation was analyzed by thiobarbituric acid reactive substance assay. Color and flavor were evaluated by sensory tests. The linolenic acid content and lipid peroxidation did not significantly change after processing or during storage. Fluctuations in color and flavor occurred during storage, but at the end of 30 days, only the heat treatment presented negative effect (p < 0.05) on the parameter color. Heat treatment and thirty-day storage period do not change the stability of n-3 fatty acid in brown flaxseed whole flour.
Constituintes químicos de Lippia sidoides (Cham.) Verbenaceae
Costa, Snia Maria O.;Lemos, Telma Leda G.;Pessoa, Otília Deusdênia L.;Assun??o, Jo?o Carlos C.;Braz-Filho, Raimundo;
Revista Brasileira de Farmacognosia , 2002, DOI: 10.1590/S0102-695X2002000300032
Abstract: thirteen compounds, 3-o-acetyloleanolic acid (1), methyl 3,4-dihydroxy benzoate (2), lapachenol (3), tecomaquinone (4), tectoquinone (5), tectol (6), acetilated tectol (7), quercetin (8), luteolin (9), glucoluteolin (10), lippisidoquinone (11), taxifolin (12) and isolariciresinol (13), were isolated from ethanol extract of lippia sidoides. their structures were assigned unambiguously by a combination of 1d and 2d nmr, ir and eims spectral data analysis and comparison with the published data for structurally related compounds. in brazilian traditional medicine the aerial parts of this specie are used as anti-infective agent, particularly as antiseptic.
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