oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 26 )

2018 ( 156 )

2017 ( 145 )

2016 ( 178 )

Custom range...

Search Results: 1 - 10 of 110565 matches for " José Carlos Leitao "
All listed articles are free for downloading (OA Articles)
Page 1 /110565
Display every page Item
Association between Body Image Dissatisfaction and Goals for Physical Activity Practice in Fitness Center  [PDF]
Cristina Bonoto Vieira Da Cunha, Ingi Petitemberte Klain, Airton José Rombaldi, José Carlos Leitao
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104621
Abstract:
Verifying the association between body image dissatisfaction and goals to the physical activity practice. The sample consisted of 299 goers of fitness center, of both genders, with ages between 16 and 50 years old. Information about gender, age, educational level, socioeconomic level and goals for the physical activity practice were collected using a previously tests questionnaire. Regarding the goals, the participants should identify if the motivation for the practice was related to aspects health, aesthetic or social relationships aspects, choosing yes or no. The body image was determined using the set of silhouettes and to verifying the body image dissatisfaction we considered the difference between the current silhouette and the ideal silhouette pointed out by the individuals. Numerical variables were expressed as mean ± standard deviation and categorical variables as absolute and relative frequency. Pearson’s chi-square test was used to verify the associations among goals to the practice, gender, and age group. Analysis of variance was used to verify the associations between the goals to the practice and the body image dissatisfaction. There was a low statistically significant correlation between body mass index and body image dissatisfaction (rs0.29 - p < 0.001). The proportion of women (69%) who practiced physical activity with aesthetics goals was higher than that of men (31%). In addition, 92% of the sample showed body image dissatisfaction. Regarding the goals to the physical activity practice, men aimed more muscular body while the women wished more lean body. Men and women have different perceptions regarding body image.
Means of Information and Media and the Influence for the Practice of Physical Activity  [PDF]
Cristina Bonoto Vieira Da Cunha, Ingi Petitemberte Klain, Airton José Rombaldi, José Carlos Leitao
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104635
Abstract:
The purpose of this study was to verify which means of information has the most influence for the practice of physical activity among fitness centers goers. The sample consisted of 299 individuals of both genders, in the age range of 16 to 50 years old. A biosociodemographic questionnaire was used to collect data on gender, age, educational level, socioeconomic level and means of access to information. The scores obtained with this research were typed in spreadsheet and later transferred to the statistical package SPSS version 17.0 for Windows where they received statistical treatment. Of the total number of respondents, 62.2% were female; the majority were aged between 16 and 30 years (63.2%); in the most prevalent category, those were graduated at university (46.8%); and 85.3% belonged to social strata A and B. In relation to the media that most influenced them to practice physical activity, the internet ranked first (84.95%), followed by television (83.95%), newspaper (50.84%), radio (45.48%), magazines (23.08%) and others (4.35%).
Quality of Life in Fitness Centers Goers  [PDF]
Cristina Bonoto Vieira da Cunha, Ingi Petitemberte Klain, Airton José Rombaldi, José Carlos Leitao
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104647
Abstract:
The purpose of this study was to verify the association between physical activity frequency and quality of life among fitness centers goers. Participants were 299 individuals of both genders, who attended eight fitness centers. For the collect of sociodemographic data, weekly frequency, duration and time of practice of physical activity, a biosociodemographic questionnaire was used. The quality of life was measured using the WHOQOL-100 questionnaire. Numerical variables were described as mean ± standard deviation or median (25 percentile—75 percentile) and categorical variables as absolute or relative frequency. The associations between quality of life and weekly frequency of physical activity were evaluated using the Spearman correlation coefficient. Comparisons between quality of life and gender, age group, duration of training, schooling and socioeconomic level were tested through analysis of variance and the Tukey post hoc test. A probability value of P ≤ 0.05 was considered statistically significant. Of the total number of respondents, 62.2% were women; 54.9% practiced physical activity four or more times a week and 69.6% had practice lasting up to 90 minutes. There were statistically significant differences between the duration of physical activity in terms of physical, psychological, independence and facet 25, which evaluates the general quality of life. Subjects with prolonged frequency (0.3%) obtained the best scores in relation to the domains, physical and psychological. Men had a higher score than women in the psychological domain and level of independence. There were no statistically significant differences in quality of life among the different age groups. It’s concluded that the more active people are, the better their quality of life is.
Intra-industry Trade, Knowledge and Adjustment Costs
Nuno Carlos Leitao
Journal of Applied Sciences , 2011,
Abstract: The international technology diffusions are associated with the changes in labour market. The empirical results show a negative correlation between the changes of employment and Marginal Intra-Industry Trade (MIIT). We also find a positive correlation between changes of employment and knowledge. The economic dimension and market structure are according to Smooth Adjustment Hypothesis (SAH).
Pakistan Intra-industry Trade: A Panel Data Approach
Muhammad Shahbaz,Nuno Carlos Leitao,Muhammad Sabihuddin Butt
International Journal of Economics and Financial Issues , 2012,
Abstract: This study examines the determinants of intra-industry trade (IIT) between Pakistan and trade patterns in the period 1980-2006, using a static and dynamic panel data approach. In the recent years, the government of Pakistan had realized factors to liberalize the international trade. The literature of international economics demonstrates that this condition (trade liberalization) induces the IIT. The case study for Pakistan has been negligence in the economic literature. This study uses country-specific characteristics as explanatory variables. This study utilizes country-specific characteristics as explanatory variables. The empirical evidence indicates that IIT is a negative function of the difference in GDP per capita between Pakistan and her trading partners. Furthermore, econometric results point out that trading is influenced by the similar demand. We have also introduced an economic dimension; this proxy confirms the positive effects of IIT. Our findings reveal the importance of scales economies and the variety of differentiated products. The study supports to accept the hypothesis that trading increases if the transportation costs decrease.
Changes in PEP Carboxylase, Rubisco and Rubisco activase mRNA levels from maize (Zea mays) exposed to a chronic ozone stress
LEITAO,LOUIS; MAORET,JEAN-JOSé; BIOLLEY,JEAN-PHILIPPE;
Biological Research , 2007, DOI: 10.4067/S0716-97602007000200005
Abstract: we quantified the ozone impact on levels of zea mays l. cv. chambord mrnas encoding c4-phosphoenolpyruvate carboxylase (c4-pepc), ribulose-l,5-bisphosphate carboxylase/oxygenase small and large subunits (rubisco-ssu and rubisco-lsu, respectively) and rubisco activase (rca) using real-time rt-pcr. foliar pigment content, pepc and rubisco protein amounts were simultaneously determined. two experiments were performed to study the ozone response of the 5th and the 10th leaf. for each experiment, three ozone concentrations were tested in open-top chambers: non-filtered air (nf, control) and non-filtered air containing 40 (+40) and 80 nl l-1 (+80) ozone. regarding the 5th leaf, +40 atmosphere induced a loss in pigmentation, pepc and rubisco activase mrnas. however, it was unable to notably depress carboxylase protein amounts and mrnas encoding rubisco. except for rubisco mrnas, all other measured parameters from 5th leaf were depressed by +80 atmosphere. regarding the 10th leaf, +40 atmosphere increased photosynthetic pigments and transcripts encoding rubisco and rubisco activase. rubisco and pepc protein amounts were not drastically changed, even if they tended to be increased. level of c4-pepc mrna remained almost stable. in response to +80 atmosphere, pigments and transcripts encoding pepc were notably decreased. rubisco and pepc protein amounts also declined to a lesser extent. conversely, the level of transcripts encoding both rubisco subunits and rubisco activase that were not consistently disturbed tended to be slightly augmented. so, the present study suggests that maize leaves can respond differentially to a similar ozone stress
Changes in PEP Carboxylase, Rubisco and Rubisco activase mRNA levels from maize (Zea mays) exposed to a chronic ozone stress
LOUIS LEITAO,JEAN-JOSé MAORET,JEAN-PHILIPPE BIOLLEY
Biological Research , 2007,
Abstract: We quantified the ozone impact on levels of Zea mays L. cv. Chambord mRNAs encoding C4-phosphoenolpyruvate carboxylase (C4-PEPc), ribulose-l,5-bisphosphate carboxylase/oxygenase small and large subunits (Rubisco-SSU and Rubisco-LSU, respectively) and Rubisco activase (RCA) using real-time RT-PCR. Foliar pigment content, PEPc and Rubisco protein amounts were simultaneously determined. Two experiments were performed to study the ozone response of the 5th and the 10th leaf. For each experiment, three ozone concentrations were tested in open-top chambers: non-filtered air (NF, control) and non-filtered air containing 40 (+40) and 80 nL L-1 (+80) ozone. Regarding the 5th leaf, +40 atmosphere induced a loss in pigmentation, PEPc and Rubisco activase mRNAs. However, it was unable to notably depress carboxylase protein amounts and mRNAs encoding Rubisco. Except for Rubisco mRNAs, all other measured parameters from 5th leaf were depressed by +80 atmosphere. Regarding the 10th leaf, +40 atmosphere increased photosynthetic pigments and transcripts encoding Rubisco and Rubisco activase. Rubisco and PEPc protein amounts were not drastically changed, even if they tended to be increased. Level of C4-PEPc mRNA remained almost stable. In response to +80 atmosphere, pigments and transcripts encoding PEPc were notably decreased. Rubisco and PEPc protein amounts also declined to a lesser extent. Conversely, the level of transcripts encoding both Rubisco subunits and Rubisco activase that were not consistently disturbed tended to be slightly augmented. So, the present study suggests that maize leaves can respond differentially to a similar ozone stress
About the vertical integration of network services
Joao Leitao
South African Journal of Information Management , 2009, DOI: 10.4102/sajim.v7i2.255
Abstract:
About the vertical integration of network services
Joao Leitao
South African Journal of Information Management , 2009, DOI: 10.4102/sajim.v7i3.265
Abstract:
Crime, Self-Protection and Business Growth in Cote d’Ivoire  [PDF]
Assi José Carlos Kimou
Modern Economy (ME) , 2015, DOI: 10.4236/me.2015.610106
Abstract: Cote d’Ivoire was considered as an island of stability and economic prosperity in a region of stagnation, and political turmoil. The situation was reversed in the early 2000, when a decade of instability led to a surge in crime and violence. Yet, very little was known about the economic consequences of crime at the firm level. This paper tested empirically the impact of crime on business activity in Cote d’Ivoire. Using a recent World Bank enterprise survey dataset and a Heckman two-step procedure we showed that crime and private provision of security negatively impacted firms’ profit and investment.
Page 1 /110565
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.