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Search Results: 1 - 10 of 5207 matches for " Alexandra Vaz "
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Lapsus de memoria y estados emocionales negativos: un estudio en una muestra de profesores
Alexandra Vaz,Fernanda Daniel,Florencio Vicente-Castro
Revista de Psicología y Educación , 2011,
Abstract: Normalmente se atribuyen los lapsus de memoria a las personas con edades avanzadas. La evidencia científica ha demostrado, sin embargo, que el olvido procede de factores múltiples y que estos están presentes en la población independientemente de la edad. La cuestión que nos proponemos estudiar es evaluar los lapsus de memoria en una población en edad activa y con titulación académica de nivel superior e identificar si existe asociación con la triada conceptual ansiedad, estrés y depresión. Pretendemos igualmente verificar la relación entre los lapsus de memoria y variables sociodemográficas. Este estudio está constituido por una muestra de 68 profesores que ejercen su actividad profesional en la Ense anza Básica y 1o Ciclo de ESO. Los instrumentos utilizados para efectuar la recogida de los datos han sido el Cuestionario de lapsus de memoria (CLM), las Escalas de Ansiedad, Depresión y Estrés (EADS-21) y un cuestionario sociodemográfico de elaboración nuestra. Verificamos, en esta investigación, que se produce una asociación positiva entre lapsus de memoria y estados emocionales negativos (Ansiedad, Estrés y Depresión), ausencia de asociación entre los lapsus de memoria y la edad e inexistencia de diferencias significativas en los lapsus de memoria en razón del sexo.
Associa??o entre a classifica??o CEAP e altera??es no Eco-doppler venoso dos membros inferiores
Maia,Miguel; Ferreira,Joana; Braga,Sandrina; Vasconcelos,Jo?o; Brand?o,Pedro; Canedo,Alexandra; Vaz,Guedes;
Angiologia e Cirurgia Vascular , 2010,
Abstract: objective: the aim of our study was to correlate the clinical manifestations of the ceap classification with insufficiency at lower extremity venous ultrasound examination. methods: eight hundred and six extremities (corresponding to 403 consecutive patients) were evaluated by vascular ultrasonography during the investigation of chronic venous insufficiency. results: mean age of 46,8 years-old, 360 women and 43 men. there was a statistically significant difference between symptomatic patients according to gender, 62,5% women versus 44,2% men (p <0,001). patients with =60 years-old were also more frequently classified as symptomatic (p <0,001) a symptomatic c class was more often attributed to limbs with great saphenous vein and medial leg perforators insufficiency. the extremities classified as asymptomatic, c1a and 2a, presented medial leg perforators insufficiency in only 36,4%, opposing to 64,9% of insufficiency in limbs classified as c0s, c1s and c2s, 76% in limbs graded c3s and c4s and to 100% of the limbs classified as c5s and c6s (p <0,001). in 20,5% of the extremities graded as c3s there was deep venous insufficiency on ultrasound, whereas in the other extremities only 5,2% had deep venous insufficiency. (p <0.001;or:4,686). conclusions: symptomatic patients were more frequently women with =60 years-old. great saphenous vein and medial leg perforators insufficiency correlated with the presence of symptoms. there was a significant association between medial leg perforators insufficiency and the severity of the clinical manifestations of ceap classification. deep venous insufficiency was more frequent in extremities classified as c3s.
Influência de diferentes agentes de corpo nas características reológicas e sensoriais de chocolates diet em sacarose e light em calorias
Gomes, Cristiane Rodrigues;Vissotto, Fernanda Zaratini;Fadini, Ana Lúcia;Faria, Eliete Vaz de;Luiz, Alexandra Motta;
Ciência e Tecnologia de Alimentos , 2007, DOI: 10.1590/S0101-20612007000300029
Abstract: a study was made of various bulk agents as sucrose substitutes in the formulation of chocolate, aiming to obtain a diet product in terms of sucrose and a light product in terms of calories (25% fewer calories than standard formulations containing sucrose) with good sensorial acceptance. the bulk agents used in this study were polydextrose, inulin, fructo-oligosaccharides - fos, lactitol and maltitol. sucralose was used as a high intensity sweetener. the light chocolates were analyzed for moisture content (karl fischer), particle size (digital micrometer), and rheological properties (casson plastic viscosity, hca, and yield strength, tca). the moisture content of the light chocolate varied from 1.23 to 2.12%, while particle size varied from 19 to 24 μm, hca from 6.60 to 11.00 pa.s, and tca from 0.05 to 1.10 pa. the formulations containing polydextrose, polydextrose and lactitol, and polydextrose and maltitol were selected for a sensory analysis due to their good technological performance and adequate machinability of the chocolate mass in the different stages of the process. the sensory analysis revealed no statistically significant difference (p > 0.05) in the three evaluated formulations in terms of aroma, hardness, melting in the mouth and flavor. there was no statistically significant difference (p > 0.05) in the intention to purchase the three chocolate formulations, although a preference was shown for the formulation containing polydextrose (32.60%) and maltitol (15.57%).
Verbal Aggressiveness and Leadership Style of Sports Instructors and Their Relationship with Athletes’ Intrisic Motivation  [PDF]
Alexandra Bekiari
Creative Education (CE) , 2014, DOI: 10.4236/ce.2014.52018

The purpose of the study was to examine intrinsic motivation of athletes and its relation with instructors’ verbal aggressiveness and leadership style. The sample of the study consisted of 168 athletes (95 boys and 73 girls), 15 - 19 years old (M = 16.5, SD = 0.5), participating in different individual and team sports (basketball, volleyball, football, long jump, pole vault, 200 m). Every participant completed three questionnaires, the Verbal Aggressiveness Questionnaire, the Intrinsic Motivation Inventory, and the Leadership Scale for Sports. The results revealed differences existing among variables of the instruments in terms of sex and type of sport (individual or team sport and contact or non contact sport). Pearson correlation revealed a significant positive relationship of coaches’ verbal aggressiveness with anxiety, autocratic style, and a negative significant relationship concerning coaches’ verbal aggression with enjoyment, ability, effort, and democratic style. Findings and implications for instructors’ type of communication were discussed and future research suggestions were included.

Occlusion of Inferior Vena Cava: A Singular Presentation of Abdominal Aortic Aneurysm
Daniel Brand o,Jo o Correia Sim es,Alexandra Canedo,Miguel Maia,Joana Ferreira,Sandrina Braga,Jo o Vasconcelos,Guedes Vaz
Case Reports in Medicine , 2009, DOI: 10.1155/2009/827954
Abstract: Even though the majority of abdominal aortic aneurysm s(AAAs) are asymptomatic, they can occasionally manifest as a result of adjacent structures involvement. Although the most frequent venous complication of AAA is rupture into the inferior vena cava (IVC), venous compression can infrequently occur. The authors report a particularly rare case of compression and thrombosis of the IVC by AAA. Patient was treated by preoperative placement of an IVC filter to impede pulmonary embolism and subsequently by open surgical repair. Besides discussing the circumstances associated with IVC compression by AAA, the authors also discuss the treatment strategy adopted and the possible alternatives.
LAN Tool: A GIS Tool for the Improvement of Digital Elevation Models Using Drainage Network Attributes  [PDF]
Alexandra Gemitzi, Odysseas Christou
Journal of Geographic Information System (JGIS) , 2013, DOI: 10.4236/jgis.2013.54031

Digital Elevation Models (DEMs) are constructed using altitude point data and various interpolation techniques. The quality and accuracy of DEMs depend on data point density and the interpolation technique used. Usually however, altitude point data especially in plain areas do not provide realistic DEMs, mainly due to errors produced as a result of the interpolation technique, resulting in imprecise topographic representation of the landscape. Such inconsistencies, which are mainly in the form of surface depressions, are especially crucial when DEMs are used as input to hydrologic modeling for impact studies, as they have a negative impact on the model’s performance. This study presents a Geographical Information System (GIS) tool, named LAN (Line Attribute Network), for the improvement of DEM construction techniques and their spatial accuracy, using drainage network attributes. The developed tool does not alter the interpolation technique, but provides higher point density in areas where most DEM problems occur, such as lowland areas or places where artificial topographic features exist. Application of the LAN tool in two test sites showed that it provides considerable DEM improvement.

Mindfulness as a Factor in the Relationship between Insecure Attachment Style, Neurotic Personality and Disordered Eating Behavior  [PDF]
Aileen Pidgeon, Alexandra Grainger
Open Journal of Medical Psychology (OJMP) , 2013, DOI: 10.4236/ojmp.2013.24B005

Mindfulness, conceptualized as a dispositional trait that differs across individuals, may potentially influence disordered eating behaviors. Previous research has independently identified insecure attachment style and neurotic personality traits as correlates of disordered eating behavior. Thus this current study will investigate whether neurotic personality traits, insecure attachment style and mindfulness predict disordered eating behavior controlling for gender differences. Participants (N = 126) completed the Adult Attachment Scale [1], the Three Factor Eating Questionnaire – Revised 18 [2], The Cognitive and Affective Mindfulness Scale – Revised [3] and the International Personality Item Pool [4]. The results of this cross-sectional study indicated that neurotic personality traits, insecure attachment style and mindfulness were related to disordered eating behaviors. The variance in disordered eating behaviors that was accounted for by neurotic personality traits and insecure attachment style was significantly reduced with the introduction of mindfulness. The results provides preliminary support for the inclusion of mindfulness training in disordered eating behavior interventions for individuals exhibiting an insecure attachment style and neurotic personality traits. Limitations and implications for further research are discussed.

Urban Trends and Economic Development in China: Geography Matters!  [PDF]
Michel Dimou, Alexandra Schaffar
Current Urban Studies (CUS) , 2014, DOI: 10.4236/cus.2014.23016
Abstract: The aim of this paper is to document the role of spatial effects in the relationship between urban trends and economic development in China, between 1984 and 2004. During this period the Chi-nese urban system experienced dramatic changes, with significant rural-urban, intra-provincial and interprovincial migration, mainly after the 1993 reforms that eased the former Hukou rule and abolished the prevailing cross-region labor mobility restrictions. This study draws upon recent econometrical tools based on spatial panel data models, developed in order to deliver evidence for a linear relationship between urbanization rates and GDP per capita and an inverted-U relationship between urban primacy and GDP per capita in the Chinese provinces.
Depicting Determinants and Effects of Intimacy and Verbal Aggressiveness Target through Social Network Analysis  [PDF]
Nikolaos Hasanagas, Alexandra Bekiari
Sociology Mind (SM) , 2015, DOI: 10.4236/sm.2015.53015
Abstract: Aim of this research is to suggest determinants and effects of intimacy (including also its extreme forms such erotic relation or life-partnership), measured in term of its effect, attraction, as well as to analyze relations between attraction and verbal aggressiveness. Complete social network analysis has been conducted in a class of students of Physical Education Department, University of Thessaly (N = 53). The data were collected with standardized questionnaires. Network analysis software (Visone) as well as cross-sectional analysis (SPSS) has been implemented. The results are: Attractiveness is gender-specific, as it is connected with male students. Younger students tend to be more attractive in physical appearance and dressing. The mother’s pedagogic influence becomes evident on the attractiveness of someone for life-partnership. The academic conformity is not conducive to the development of pleasant discussions. Spending money for entertainment and impressing try to outweigh attractive physical appearance. Being aware of preference for durable erotic relation strengthens self-confidence. A companionship seems to be of socio-intellectual or of emotional-sexual nature. Attractiveness seems to lead to verbal aggression. It seems also to reduce the tendency to escape to imaginary sceneries. Physical dimension appears to be stronger than mental parameters for maintaining a durable erotic relation. The desire for life-partnership without children appears to be favored by mental elements. Verbal-aggressors search for targets without meticulously examining weaknesses and strengths on each person. Distinct types of attractiveness are also detected, corresponding to the following patterns: general sociability (“friend”) which is also connected with mild (narcissistic) exploitation, erotic relation (“erotic”) which is an autonomous value system based on superficial criteria related to appearance, focusing on communication (“distant communicable”), being an idol (“fully narcissistically exploitable”) without any reality basis, and life-long occupation of a person (“life-long exploitable”).
Leadership Style, Machiavellianism and Fair Play at the School: Interaction of Instructors and Students in Physical Education  [PDF]
Dimitrios Bardas, Alexandra Bekiari
Open Journal of Social Sciences (JSS) , 2019, DOI: 10.4236/jss.2019.71012
Abstract: In this study, correlations among physical education instructors’ leadership style and students’ fair play behaviors and Machiavellian tactics were examined. The sample consisted of 292 students (151 males, 141 females) of 10 - 15 years old from primary and secondary schools. Three types of questionnaires were completed during physical education courses. Statistically significant differences were observed in perceived instructors’ leadership style (more “autocratic” style toward male students and “democratic” toward female), antisocial behaviors by male students and pro-social behaviors by the female ones and Machiavellianism by male students. It has been found that the students of the 5th class of primary school are especially susceptible to see autocratic leadership style on their instructors and to perceive more gamesmanship, cheating, and Machiavellianism on themselves. However, the students of the 3rd class of secondary school tend to see more democratic leadership style on their instructors and to believe that they present more convention and respectfulness to their teammates. Perceived instructors’ autocratic leadership style was negatively related to students’ prosocial fair play behaviors, while it was positively related to students’ antisocial fair play behaviors and Machiavellian tactics. Moreover, leadership style could significantly predict the variables of students’ fair play behaviors and Machiavellianism. Three particular profiles have been proposed: the “bad and controlled student”, the “respectful and weak student” and the “typical autocratic instructor”. Thus, both academic and practical added value is expected to have been produced by the particular research.
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