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Search Results: 1 - 10 of 1797 matches for " Yara Lucy Fidelix "
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Insatisfa??o com a imagem corporal em adolescentes de uma cidade de pequeno porte: associa??o com sexo, idade e zona de domicílio
Fidelix, Yara Lucy;Silva, Diego Augusto Santos;Pelegrini, Andreia;Silva, Adelson Fernandes da;Petroski, Edio Luiz;
Revista Brasileira de Cineantropometria & Desempenho Humano , 2011, DOI: 10.5007/1980-0037.2011v13n3p202
Abstract: a high prevalence of body image dissatisfaction has been observed among adolescents over the last decades. the aim of this study was to evaluate the association between body image dissatisfaction and demographic factors in adolescents. the sample consisted of 405 boys and girls (247 from an urban area and 158 from a rural area) aged 14 to 17 years enrolled in public schools of a small-sized municipality. the demographic variables analyzed were gender (male, female), age (14-15 years, 16-17 years), and area of residence (urban, rural). the perception of body image was evaluated using a figure rating scale. the prevalence of body image dissatisfaction was 56.5%. both girls (26.5%) and boys (39.5%) wished to have a larger body silhouette. an association was observed between body image dissatisfaction and gender, with boys showing a 1.24 times higher chance (95%ci: 1.05-1.47) of body image dissatisfaction than girls. the prevalence of body image dissatisfaction is high even among adolescents from small-sized municipalities. body image dissatisfaction is more prevalent among boys. healthcare workers and teachers should be aware of the importance to encourage youngster to better understand themselves and their body and to reflect about current body images.
Body image dissatisfaction among adolescents from a small town: Association with gender, age, and area of residence. DOI: 10.5007/1980-0037.2011v13n3p202
Yara Lucy Fidelix,Diego Augusto Santos Silva,Andreia Pelegrini,Adelson Fernandes da Silva
Revista Brasileira de Cineantropometria e Desempenho Humano , 2011,
Abstract: A high prevalence of body image dissatisfaction has been observed among adolescents over the last decades. The aim of this study was to evaluate the association between body image dissatisfaction and demographic factors in adolescents. The sample consisted of 405 boys and girls (247 from an urban area and 158 from a rural area) aged 14 to 17 years enrolled in public schools of a small-sized municipality. The demographic variables analyzed were gender (male, female), age (14-15 years, 16-17 years), and area of residence (urban, rural). The perception of body image was evaluated using a figure rating scale. The prevalence of body image dissatisfaction was 56.5%. Both girls (26.5%) and boys (39.5%) wished to have a larger body silhouette. An association was observed between body image dissatisfaction and gender, with boys showing a 1.24 times higher chance (95%CI: 1.05-1.47) of body image dissatisfaction than girls. The prevalence of body image dissatisfaction is high even among adolescents from small-sized municipalities. Body image dissatisfaction is more prevalent among boys. Healthcare workers and teachers should be aware of the importance to encourage youngster to better understand themselves and their body and to reflect about current body images.
Anthropometric, morphological and somatotype characteristics of athletes of the Brazilian Men’s volleyball team: an 11-year descriptive study.
Edio Luiz Petroski,Jefferson Del Fraro,Yara Lucy Fidelix,Diego Augusto Santos Silva
Revista Brasileira de Cineantropometria e Desempenho Humano , 2013, DOI: http://dx.doi.org/10.5007/1980-0037.2013v15n2p184
Abstract: This study analyzed the anthropometric and morphological characteristics of the adult male players in the Brazilian volleyball team for 11 years. The sample comprised 92 athletes selected for the national team from 1995 to 2005. Anthropometric measures were collected and body composition and somatotype components were estimated. Oneway ANOVA and the Bonferroni test were used for descriptive statistical analysis, and the level of significance was set at p<0.05. Along the 11 years, there was a significant increase in the flexed arm perimeter, humerus diameter and lean mass. Skinfold thickness and percent body fat tended to decrease. Height increased and was greater than 1.97 m. The somatotype of the volleyball players in the Brazilian team changed along the years. Ectomorphic and mesomorphic somatotypes were the most frequent. In 11 years, the athletes selected for the Brazilian team had an increase in body mass and a decrease in skinfold thickness and percent body fat. The most frequent anthropometric classifications were mesomorph-ectomorph for five years, followed by mesomorphic-ectomorph for three years, which suggests that greater height and low body fat were taken into consideration when selecting athletes for the national team.
Essential Maternal and Newborn Care Skills Training for Midwives: Their Impact on Reducing Maternal and Neonatal Mortalities in Kenya  [PDF]
Lucy Gitonga
Open Journal of Obstetrics and Gynecology (OJOG) , 2016, DOI: 10.4236/ojog.2016.61009
Abstract: Continuing professional development (CPD) continues to gain acceptance as a model for health care professionals to engage in lifelong learning. Little is known about how CPD participants put the experience and the new knowledge into practice and whether it has impact on patient care outcomes. The primary objective of this study was to evaluate the effectiveness of CPD of Midwives on Essential Maternal and Newborn care skills on maternal and neonatal mortality in Embu County, Kenya. The study was an interventional non-randomized pretest post test study design of midwives from the participants of the 2010 ministry of health training on essential maternal and newborn care skills. Sixty (60) midwives working in maternity unit of Embu level five hospitals were targeted. The study was carried out in two phases. Phase one involved environmental scanning of the factors that support good performance in the workplace using a questionnaire. Phase two involved evaluation of the impact by testing a hypotheses using data collected by use of questionnaires, evaluation checklist and chart audit. Data were analyzed using qualitative content analysis and presented using percentages and frequency tables. Chi-square test and correlation analysis were used to show the association between variables, which are midwives essential maternal and newborn care skills and maternal and neonatal mortality. A chi-square χ2 = 14.143, df = 9 and a coefficient = 0.357. This coefficient is less than p-value at Alpha 0.05 and therefore is not significant, proving that the essential maternal and neonatal care skills do not contribute to reduction in mortalities as such two variables are almost independent of each other, whether one exists does not necessitate the existence of another nor does it reduce maternal and neonatal mortalities in Kenya.
Effect of Concentration on the Optical and Solid State Properties of ZnO Thin Films Deposited by Aqueous Chemical Growth (ACG) Method  [PDF]
Sylvester Lekoo Mammah, Fidelix Ekeoma Opara, Friday Barikpe Sigalo, Sabastine Chukwuemeka Ezugwu, Fabian Ifeanyichukwu Ezema
Journal of Modern Physics (JMP) , 2012, DOI: 10.4236/jmp.2012.310187
Abstract: Thin films of Zinc Oxide (ZnO) having different concentrations were deposited using the Aqueous Chemical Growth (ACG) method. The films were characterized using Rutherford Back Scattering (RBS) spectroscopy for chemical composition and thickness, X-Ray Diffraction (XRD) for crystallographic structure, a UV-VIS spectrophotometer for the analysis of the optical and solid state properties which include spectral absorbance, transmittance, reflectance, refractive index, direct band gap, real and imaginary dielectric constants, absorption and extinction coefficients and a photomicroscope for photomicrographs. The average deposited film thickness was 100nm. The results indicate that the values of all the optical and solid state properties investigated vary directly with concentration except transmittance which is the reverse. Thus, the optical and solid state properties of ZnO thin film deposited by the Aqueous Chemical Growth method can be tuned by deliberately controlling the concentration of the precursors for various optoelectronic applications including its application as absorber layer in solar cells.
Orthodontic Management of Occlusal Prematurity in Early Mixed Dentition  [PDF]
Maen Mahfouz, Yara Mahfouz
Open Journal of Stomatology (OJST) , 2015, DOI: 10.4236/ojst.2015.52006
Abstract: Premature contact is one of the most well-known occlusion disorders and can interfere mandibular movement remarkably. The masticatory system has ability to respond with the wide range of adaptive modalities. These adaptations can be functional, structural and/or behavioral. Therefore, this system, like any biological system, cannot be viewed as a rigid and immutable. This paper presents a clinical case which is demonstrating orthodontic management of occlusal prematurity in early mixed dentition by using a protrusive arch wire.
Subcutaneous Emphysema Is Iatrogenic Complication in Dental Surgery  [PDF]
Yara Mahfouz, Maen Mahfouz
Open Journal of Stomatology (OJST) , 2015, DOI: 10.4236/ojst.2015.58027
Abstract: Subcutaneous emphysema in the head and neck is a well known clinical condition. It is an uncommon clinical complication of dental treatment caused by forceful injection of air into the loose connective tissue below the dermal layer. The trapped air is often limited by subcutaneous space in the head and neck. This paper presents a clinical case in which subcutaneous emphysema developed immediately during surgical extraction of third molar.
Effect of Concentration on the Optical and Solid State Properties of CoO Thin Films Deposited Using the Aqueous Chemical Growth (ACG) Method  [PDF]
Sylvester Lekoo Mammah, Fidelix Ekeoma Opara, Friday Barikpe Sigalo, Valentine Benjamin Omobo-Pepple, Fabian Ifeanyichukwu Ezema, Sabastine Chukwuemeka Ezugwu
Advances in Materials Physics and Chemistry (AMPC) , 2012, DOI: 10.4236/ampc.2012.24035
Abstract:

Thin films of Cobalt(II) Oxide were deposited from equimolar concentrations of Cobalt Chloride, and Hexamethylenetetramine on clean glass substrates using the Aqueous Chemical Growth method in order to determine the effect of precursor concentration on their optical and solid state properties. The analytical tools used for the study include, Rutherford Back Scattering (RBS) spectroscopy for elemental analysis and determination of film thickness, X-Ray Difftraction (XRD) for crystallographic structure, a UV-VIS spectrophotometer for optical and other solid state properties and a photomicroscope for photomicrographs. The results indicate that an increase in the concentration of precursor materials makes ACG CoO thin film a better absorber of ultraviolet radiation, a better transmitter of infra-red radiation, a reflector of visible radiation and a material having an increased band gap. The ACG CoO thin film deposited from 0.1 M precursor concentration was found to be a suitable material for the construction of thermographic devices, poultry houses etc. It can also serve as window layer in solar cells among other optoelectronic applications.

Role of sphingosine kinases and sphingosine 1-phosphate in mediating adipogenesis  [PDF]
Lucy D. Mastrandrea
Journal of Diabetes Mellitus (JDM) , 2013, DOI: 10.4236/jdm.2013.32009
Abstract:

Recent Background: Development of obesity involves promotion of preadipocyte differrentiation. This study investigated the role that sphingosine kinases (SPHK) and ceramide-derived sphingosine 1-phosphate (S1P) play in adipocyte terminal differentiation. Materials and Methods: The mouse 3T3-L1 cell line was used as a model for adipogenesis. Cells were harvested at specific time points after initation of differentiation, and SPHK activity was measured. 3T3-L1 cells were treated with S1P and expression of early adipogenesis transcription markers was measured by real time PCR. The expression of S1P-receptors (S1PRs) during differentiation was measured. Results: SPHK activity is induced when 3T3-L1 cells are treated with insulin, dexamethasone, and isobutylmethylxanthine to induce differentiation. SPHK1 is active in preadipocytes and early in the differentiation process. Both SPHK1 and SPHK2 isozymes contribute to activity in differentiated adipocytes. Inhibition of SPHK1 attenuates adipocyte differentiation; however, extracellular S1P does not rescue the effect of SPHK1 inhibition on adipogenesis. Although treatment of preadipocytes with S1P induced message expression of the early adipogenesis transcription factor CC AAT/ binding proteinalpha, continued treatment did not fully support the development of differentiated adipocytes. Sphingosine 1-phosphate receptors (S1PRs) are expressed in preadipocytes and message expression declines markedly during adipocyte differentiation. Conclusion: These results demonstrate that the contribution of SPHK and S1P to adipogenesis is mediated primarily through biphasic activation of SPHK1 and 2 with extracellular S1P and S1PRs playing little role during preadipocyte differentiation.

Modeling of Soft Tissues Interacting with Fluid (Blood or Air) Using the Immersed Finite Element Method  [PDF]
Lucy T. Zhang
Journal of Biomedical Science and Engineering (JBiSE) , 2014, DOI: 10.4236/jbise.2014.73018
Abstract:

This paper presents some biomedical applications that involve fluid-structure interactions which are simulated using the Immersed Finite Element Method (IFEM). Here, we first review the original and enhanced IFEM methods that are suitable to model incompressible or compressible fluid that can have densities that are significantly lower than the solid, such as air. Then, three biomedical applications are studied using the IFEM. Each of the applications may require a specific set of IFEM formulation for its respective numerical stability and accuracy due to the disparities between the fluid and the solid. We show that these biomedical applications require a fully-coupled and stable numerical technique in order to produce meaningful results.

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