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Search Results: 1 - 10 of 719434 matches for " Mónica María Arenas "
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Levels of physical activity, barriers, and stage of change in an urban population from a municipality in Colombia
Arango,Elkin Fernando; Pati?o,Fredy Alonso; Quintero,Mario Andrés; Arenas,Mónica María;
Colombia Médica , 2011,
Abstract: objective: to assess the levels of physical activity, barriers, and stage of change in an urban population 25 to 50 years of age from the municipality of santa rosa de osos, department of antioquia. materials and methods: a prevalence study was conducted, with a two-stage random sampling among 357 individuals not suffering from any known cardiovascular disease. a pre-designed survey was conducted to assess the levels of physical activity, the stage of change, and physical activity barriers. results: the total low physical activity was 9%, and by domains: work 66.9%, transport 60.8%, household and garden (yard work) 44.8%, and leisure-time 76.2%. the most important physical activity barriers were ?lack of willpower? (70%) and ?lack of time? (46.2%). the most prevalent stages of change were ?contemplation? (40.3%) and ?preparation? (17.1%). conclusion: low physical activity levels were found in different domains of daily life, together with a high prevalence of barriers and stages prior to physical activity practice, mainly among women and obese subjects.
Levels of physical activity, barriers, and stage of change in an urban population from a municipality in Colombia
Elkin Fernando Arango,Fredy Alonso Pati?o,Mario Andrés Quintero,Mónica María Arenas
Colombia Médica , 2011,
Abstract: Objective: To assess the levels of physical activity, barriers, and stage of change in an urban population 25 to 50 yearsof age from the Municipality of Santa Rosa de Osos, department of Antioquia.Materials and methods: A prevalence study was conducted, with a two-stage random sampling among 357 individualsnot suffering from any known cardiovascular disease. A pre-designed survey was conducted to assess the levels of physicalactivity, the stage of change, and physical activity barriers.Results: The total low physical activity was 9%, and by domains: work 66.9%, transport 60.8%, household and garden(yard work) 44.8%, and leisure-time 76.2%. The most important physical activity barriers were lack of willpower (70%)and lack of time (46.2%). The most prevalent stages of change were contemplation (40.3%) and preparation (17.1%).Conclusion: low physical activity levels were found in different domains of daily life, together with a high prevalenceof barriers and stages prior to physical activity practice, mainly among women and obese subjects.
Selección de Carteras de Fondos de Inversión Socialmente Responsables mediante Programación por Metas con Tecnología Difusa
Bilbao-Terol Amelia,Arenas-Parra M.Mar,Rodríguez-Uría M.Victoria,Ca?al Fernández Verónica
Rect@ , 2009,
Abstract: En este trabajo se presentan modelos de selección de carteras, que consideran no sólo los objetivos convencionales de optimización financiera: maximizar la riqueza al final del periodo de inversión, maximizar los beneficios netos, maximizar la riqueza relativa, etc. sino también otros objetivos asociados a los efectos sobre la sociedad de las empresas emisoras de los activos, denominados genéricamente de “responsabilidad social”.La expresión “Inversión Socialmente Responsable” (ISR) describe un proceso de inversión que incorpora en todas sus etapas (búsqueda, selección y seguimiento) consideraciones medio-ambientales, sociales, éticas y de gobierno corporativo de las empresas; el principal instrumento de la ISR en todos los países y, particularmente en Espa a, son los denominados Fondos de Inversión Socialmente Responsables o éticos. El carácter multicriterio de la selección de carteras, así como la imprecisión y vaguedad asociada a las consideraciones de responsabilidad social, nos llevan a trabajar con técnicas de programación multicriterio difusa. En el modelo de Programación Multicriterio Difusa que proponemos, los criterios financieros se han evaluado mediante el Valor Esperado Final (VEF) y el Valor en Riesgo Condicionado (CVaR) que se han incorporado, junto con los de responsabilidad social de la cartera, a un problema de Programación por Metas. La metodología propuesta se ha aplicado al caso espa ol. ABSTRACT In this study a portfolio optimization framework has been developed, taking into account not only conventional financial objectives: maximize the wealth at the end of inversion period, maximize the net profits, or the maximize relative wealth, etc. but also additional ones known as “socially responsible”, associated to the effects of issuer companies over the Society. The term “Socially Responsible Investment” (SRI) describes the investment process which considers environmental, social, and ethical or governance features of portfolio components. The classical portfolio selection process stands into the usual fundamental investment selection and management process, but a problem arises in considering these types of criteria: how to measure the social responsibility attractiveness of individual mutual funds for each investor. The multidimensional nature of the portfolio selection problem and imprecision on ethical considerations lead us to work with techniques of Fuzzy Multiple Criteria Decision Making (MCDM) and the evaluation of financial criteria have handled using the expected return and Conditional Value-at-Risk (CVaR). All the financial
Efectividad de las presiones de sello en la vía aérea con la máscara laríngea clásica y la supreme en pacientes adultos sometidos a cirugía oftalmológica por personal de anestesia en entrenamiento
álvarez,Catalina María; Cárdenas,Sergio; Soto,Mónica Lucía; Arroyave,Héctor Darío; Arenas,Iván Darío; González,Nelson Javier;
Revista Colombiana de Anestesiología , 2009,
Abstract: introduction: new anaesthetic techniques mean that devices must be developed which provide advantages in terms of sealing pressure and ventilation (without intubation′s sympathetic system component). this study involved a new extraglotic device which was inserted by personnel undergoing training in the use of anaesthesia during ophthalmology surgery. the main objective was to compare differences in airway sealing pressure in latin-american adults undergoing outpatient ophthalmology surgery when two types of extraglotic devices were inserted by trainee medical personnel. the secondary objectives involved comparing insertion time, percentage amventilatory success rate and evidence of postoperative airway trauma. methods: this was a randomised, double-blind, clinical trial which compared the effectiveness of the classic laryngeal mask airway (clma) to the laryngeal mask airway supreme (lma-s) to ensure airway sealing pressure in 97 asa i-iii adults having no difficult airway predictors who were undergoing programmed ophthalmology surgery. results: lma-s reached higher mean sealing pressures at the beginning (24.2 cm h2o cf 19.2 cm h2o) and at the end of the procedure (24.6 cm cf 20.4 cm h2o) (p<0.05). insertion times were similar and there was no difference in the incidence of postoperative adverse effects. conclusions: lma-s achieved a higher mean sealing pressure than clma. they had similar insertion times and adverse effect incidence when trainee medical inserted them into adult patients undergoing outpatient ophthalmology surgery.
Selection of Maize Genotypes with Tolerance to Osmotic Stress Associated with Salinity  [PDF]
Mónica B. Collado, Mónica B. Aulicino, Miguel J. Arturi, María del C. Molina
Agricultural Sciences (AS) , 2016, DOI: 10.4236/as.2016.72008
Abstract: Thirteen different inbred lines in relation to the type of grain and life cycles were characterized by testing for osmotic stress associated with salinity. The identification of tolerant genotypes would be an effective strategy to overcome the saline stress. Osmotic stress reduces immediately the expansion of the roots and young leaves which determine a reduction in the size of the plant. A completely randomized design was adopted to test seedlings under controlled conditions of light and temperature. Two treatments were used: 0 mM NaCl (as control) and 100 mM NaCl. After 15 days of complete salinization, the seedlings were harvested and several morphological traits were measured. The morphological traits of growth were leaf growth (Ar1, Ar2, Ar3 and Ar4), dry masses of shoot and root (SDM and RDM, respectively). Also, traits associated with water economy were registered: leaf water loss (LWL) and relative water content (RWC). The morphological traits were expressed in relative terms, while the traits associated with the economy of water were expressed in absolute terms. Uni and multivariate techniques were applied to identify genotypes with divergent behaviors to osmotic stress tolerance. Also, a Tolerance Index was employed to identify superior genotypes. Four clusters were obtained after applying a Cluster Analysis and Principal Component Analysis (PCA). The genotypes were compared to each other with a test of DMS. The results obtained with different statistical techniques converged. Some variables presented a differential weight classification of genotypes. The morphological traits like RDM, SDM, Ar3, Ar4 and Ar5 were the most discriminating. Tolerance Index allowed to classify genotypes, thus SC2 and AD3 lines were that reached highest value of the index and therefore would be tolerant lines, while AF3 and LP3 had a low index and were seen as sensible.
Generational Mean Analysis of Salt Tolerance during Osmotic Phase in Maize Seedling  [PDF]
Mónica B. Collado, Mónica B. Aulicino, Miguel J. Arturi, María del C. Molina
American Journal of Plant Sciences (AJPS) , 2019, DOI: 10.4236/ajps.2019.104040
Abstract: This study details the nature and magnitude of the genetic effects associated with various quantitative characters (morphological and hydric relations) measured in maize seedlings during the osmotic phase of saline stress (100 mM NaCl). Three lines with differential behavior in salt stress: SC2 (tolerant), AFE (susceptible) and LP3 (moderately tolerant) were used to obtain contrasting crosses (SC2 × AFE) and (SC2 × LP3). An analysis of six generational means (P1, P2, F1, F2, BC1 and BC2) was applied for each cross. First a scaling test was applied and then a three and six-parameter genetic models were used to estimate various genetic components. In none of the traits studied there was evidence of adequacy to the three parameter model, which indicates important epistatic effects in genetic expression. The dominant genetic effects were greater than the additive ones for all the characters evaluated. LG showed positive and significant differences for [h] in both crosses, indicating the presence of hybrid vigor and its possible use in the improvement. Low value of [d] and high of [h] both significant in SC2 × AFE, indicates existence of genes dispersion between the parental lines. While, for the cross SC2 × LP3, the low and significant value of [d] and not significant value of [
Determinantes de la multilocalizaciónde empresas exportadoras de manufacturasen Colombia
Sinisterra,Mónica María;
Lecturas de Economía , 2009,
Abstract: the purpose of this document is to investigate the determinants of the intra-regional multilocation of manufacturing export firms in 2007. for this goal, a dataset at the level of the firm is used from proexport and superintendencia de sociedades databases, which estimates a bivariate logit model that allows us to find the characteristics of manufacturing export firms that decide to be located in more than one place in the national territory. the empirical results show that the export firms with a bigger probability of multilocation in colombia are those firms that are big, are not capital-intensive, have high sales, and high leverage.
Efectos de las técnicas de filtrado en la evaluación de un modelo de ciclos económicos reales
Mónica María Sinisterra
Lecturas de Economía , 2009,
Abstract: The purpose of this document is to investigate the determinants of the intra-regionalmultilocation of manufacturing export firms in 2007. For this goal, a dataset at the level of thefirm is used from Proexport and Superintendencia de Sociedades databases, which estimates abivariate logit model that allows us to find the characteristics of manufacturing export firmsthat decide to be located in more than one place in the national territory. The empirical resultsshow that the export firms with a bigger probability of multilocation in Colombia are thosefirms that are big, are not capital-intensive, have high sales, and high leverage.
El afecto depresivo o la clínica del vacío.
Mónica María Palacio.
Affectio Societatis , 2004,
Abstract: Teniendo como fondo la invitación a ocuparnos hoy de una Clínica del vacío , necesaria en función de los efectos que sobre el sujeto postmoderno tiene el discurso de la ciencia, el presente trabajo nos sitúa en uno de los terrenos más difíciles de transitar en el campo clínico, a saber, el de la depresión. Desde Freud hasta Lacan y con la ayuda de otros autores, nos muestra un recorrido que más que un aporte teórico a la cuestión, constituye una herramienta necesaria para quienes hoy no podemos dejar de escuchar y observar los alcances de dicho discurso en el devenir humano. Aquí, el afecto depresivo no es ya el resultado de una experiencia de vacío que se particulariza en una queja cada vez más frecuente, sino, según se devela, de una falla al nivel del deseo que implica, por tanto, interrogar sus coordenadas, y por esta vía, tocar las desgracias del ser.
E-learning as a Key for Regional Integration through Countries of MERCOSUR
Mónica María Silvestri
International Journal of Advanced Corporate Learning (iJAC) , 2011, DOI: 10.3991/ijac.v4i4.1736
Abstract: The Center of training for regional integration (CEFIR, in Spanish) was founded more than 20 years with the firm intention to dedicate efforts on issues of regional integration in the four countries of MERCOSUR. Since 2008 has promoted the creation of a platform for e-learning and delivered some courses in blended learning and e-learning mode, for training in regional integration issues. E-learning has become a transversal theme in the organization and became an efficient instrument for promoting regional integration of the 4 countries of the brick. The heterogeneity of countries, cultures and even languages raised a number of challenges when implementing the e-learning strategy.
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