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Search Results: 1 - 10 of 14612 matches for " Gustavo Alonso; "
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Uso de teorías y modelos en artículos de una revista latinoamericana de salud pública, 2000-2004
Cabrera Arana,Gustavo Alonso;
Revista de Saúde Pública , 2007, DOI: 10.1590/S0034-89102007000600011
Abstract: objective: to characterize frequency and type of use of theories or models on papers of a latin-american journal in public health between 2000 and 2004. methods: the revista de saúde pública was chosen because of its history of periodic publication without interruption and current impact on the scientific communication of the area. a standard procedure was applied for reading and classifying articles in an arbitrary typology of four levels, according to the depth of the use of models or theoretical references to describe problems or issues, to formulate methods and to discuss results. results: of 482 articles included, 421 (87%) were research studies, 42 (9%) reviews or special contributions and 19 (4%) opinion texts or assays . of 421 research studies, 286 (68%) had a quantitative focus, 110 (26%) qualitative and 25 (6%) mixed. reference to theories or models is uncommon, only 90 (19%) articles mentioned a theory or model. according to the depth of the use, 29 (6%) were classified as type i, 9 (2%) as type ii, 6 (1.3%) were type iii and the 46 remaining texts (9.5%) were type iv. conclusions: reference to models was nine-fold more frequent than the use of theoretical references. the ideal use, type iv, occurred in one of every ten articles studied. it is of relevance to show theoretical and models frames used when approaching topics, formulating hypothesis, designing methods and discussing findings in papers.
Teorías y modelos en la Revista Facultad Nacional de Salud Pública de la Universidad de Antioquia, 2000-2004
Cabrera A,Gustavo Alonso;
Revista Facultad Nacional de Salud Pública , 2005,
Abstract: objective: to identify the theories and theoretical models used in the articles published by national school of public health journal of the university of antioquia, during the period 2000-2004. methods: in january of 2005 all issues published from 2000 to 2004 were analyzed. a researcher with experience in theories and models analyzed all articles in every issue using a questionnaire to identify theoretical references. results: eleven issues of the journal were revised, ten of periodical publication and one special issue. 103 articles were identified: 46 research studies, 35 revisions of specific topics and 22 opinion articles, different topics were identified such as health system, epidemiology, and psychological and social aspects. although 35 (34%) of the articles involved 50 theories and models as theoretical framework, only 11 (10%) showed an appropriate methodological and scientific use of them according to adopted criteria. conclusions: there was a limited use of theories and models in the articles published in the journal during 2000-2004; there was also a low rigor in using this theories and models to focus the theme, methodology and analysis of the studied topic.
Theories and models on public health promotion
Cabrera Gustavo Alonso
Colombia Médica , 2004,
Abstract: Objective: To present a selection of theories and models those are used in public health history. Materials and methods: Based on defined criteria, specific bibliography and electronic libraries with literature that presents and discusses theories or models were reviewed with the purpose to select literature that shows and discuses theories and models that were proposed and applied in twentieth century to base or to direct studies and interventions oriented to the prevention or health promotion of the people. The literature was identified in a historical sequence, author, year, focus and name of the theory or the model. Results: Fifty-two theories as well as sixty models were identified according to their generic denomination, which are global and historically recognised in literature. The most relevant and frequently mentioned are presented in the text of the article. Conclusions: Most of the reviewed theoretical proposals that are presented in the article, come from previous solid conceptual proposals and their corresponding hypothetical validation; it was observed the frequent derivation of models from solid and well known theories, from systematic records and discussions of the reality by the authors.
Creencias sobre caries e higiene oral en adolescentes del Valle del Cauca
Tascón,Jorge Eduardo; Cabrera,Gustavo Alonso;
Colombia Médica , 2005,
Abstract: objective: to know the beliefs about tooth decay and oral hygiene in adolescents from the department of valle of cauca, colombia . methods: the health belief model was used in a descriptive study in 38 out of 42 municipalities of the department. the sample of 5,400 adolescent students from public and private high schools was selected trough a probabilistic, stratified, tri-stage cluster sampling. a structured questionnaire made of 47 items related to the variables of the study was used. results: respecting the etiology, 65% beliefs that dental caries is due to bad oral hygiene, 18% due to bacteria, 7% associates it to the sugar consumption and 10% didn?t know; 41% referred that they have had tooth decay already, 14% said that had decay at moment, 37% did not have perceived history of decay; 99.8% answered that they do bush their teeth, the brushing frequency had a median of 3 times per day; 55% uses dental floss and 51% mouth wash; 14% referred that never have visited the dentist and 27% said that visited him/her 7 months ago or more. conclusions: the use of the health belief model allowed know the basic beliefs about tooth decay and oral hygiene in adolescents of the valley of cauca. beliefs and preventive practices of the participants are not favorable. it is necessary to design preventive interventions for improving perceptions and reducing the presence and effects of the dental caries.
Algunas creencias sobre susceptibilidad y severidad de la caries en adolescentes del Valle del Cauca, Colombia
Tascón,Jorge Eduardo; Cabrera,Gustavo Alonso;
Colombia Médica , 2005,
Abstract: objective: to know existing beliefs about susceptibility and severity of dental caries in high school adolescents in the state of valle del cauca, colombia. methods: the health belief model was used as the theoretic and methodological basis for a descriptive cross-sectional study carried out in 38 out of 42 municipalities of the state of valle of cauca. a total of 5.400 adolescent students registered in public and private high schools aged of 10 and 20 were selected through a probabilistic, cluster, tri-stage, and stratified sample process. results: overall, 51% of the participants believe that dental caries do not affect the mastication process; 52% think they cannot suffer caries again once their teeth have been filled, and 54% does not associate caries with digestion changes; 80% does not relate the use of braces and retainers with the disease; 92% believes dental caries can affect any person and 91% believe that caries might make them lose their teeth. conclusions: beliefs on the severity of caries are favorable in general and beliefs about susceptibility must be improved through preventive intervention strategies directed to this population group
Algunas creencias sobre susceptibilidad y severidad de la caries en adolescentes del Valle del Cauca, Colombia
Jorge Eduardo Tascón,Gustavo Alonso Cabrera
Colombia Médica , 2005,
Abstract: Objetivo: Conocer las creencias que sobre susceptibilidad y severidad de la caries dental tienen los adolescentes escolarizados del departamento del Valle del Cauca, Colombia. Método: Se usó el Modelo de Creencias en Salud como eje teórico y metodológico en un estudio descriptivo y transversal en 38 de 42 municipios del departamento del Valle del Cauca. Se seleccionó una muestra de 5.400 adolescentes entre 10 y 20 a os por muestreo probabilístico, trietápico, estratificado, de conglomerados en la población escolar de colegios oficiales y privados. Resultados: Del total de adolescentes 51% no cree que la caries produce cambios en la masticación; 52% de los participantes no cree que le puede dar caries de nuevo, una vez hayan sido obturados o calzados sus dientes y 54% no relaciona la caries con cambios en la digestión; 80% no relaciona el uso de brackets y retenedores con la enfermedad; 92% cree que la caries le puede dar a cualquier persona y 91% cree que la caries puede hacerle perder los dientes. Conclusiones: Las creencias sobre la severidad de la caries son en general favorables; las creencias con respecto a susceptibilidad deben ser mejoradas por medio de estrategias de intervención preventivas dirigidas a este grupo poblacional.
Creencias sobre caries e higiene oral en adolescentes del Valle
Jorge Eduardo Tascón,Gustavo Alonso Cabrera
Colombia Médica , 2005,
Abstract: Objective: To know the beliefs about tooth decay and oral hygiene in adolescents from the Department of Valle of Cauca, Colombia. Methods: The Health Belief Model was used in a descriptive study in 38 out of 42 municipalities of the Department. The sample of 5400 adolescent students from public and private high schools was selected trough a probabilistic, stratified, tri-stage cluster sampling. A structured questionnaire made of 47 items related to the variables of the study was used. Results: Respecting the etiology, 65% beliefs that dental caries is due to bad oral hygiene, 18% due to bacteria, 7% associates it to the sugar consumption and 10% didn’t know; 41% referred that they have had tooth decay already, 14% said that had decay at moment, 37% did not have perceived history of decay; 99.8% answered that they do bush their teeth, the brushing frequency had a median of 3 times per day; 55% uses dental floss and 51% mouth wash; 14% referred that never have visited the dentist and 27% said that visited him/her 7 months ago or more. Conclusions: The use of the Health Belief Model allowed know the basic beliefs about tooth decay and oral hygiene in adolescents of the Valley of Cauca. Beliefs and preventive practices of the participants are not favorable. It is necessary to design preventive interventions for improving perceptions and reducing the presence and effects of the dental caries.
SharedDB: Killing One Thousand Queries With One Stone
Georgios Giannikis,Gustavo Alonso,Donald Kossmann
Computer Science , 2012,
Abstract: Traditional database systems are built around the query-at-a-time model. This approach tries to optimize performance in a best-effort way. Unfortunately, best effort is not good enough for many modern applications. These applications require response time guarantees in high load situations. This paper describes the design of a new database architecture that is based on batching queries and shared computation across possibly hundreds of concurrent queries and updates. Performance experiments with the TPC-W benchmark show that the performance of our implementation, SharedDB, is indeed robust across a wide range of dynamic workloads.
Efectos de la reforma en salud en las acciones de control de tuberculosis en el Valle del Cauca, Colombia
Carvajal,Rocío; Cabrera,Gustavo Alonso; Mateus,Julio César;
Biomédica , 2004,
Abstract: effects of the health sector reform upon tuberculosis control interventions in valle del cauca, colombia implementation of the general system of social security in health (gsssh) was initiated for the control of tuberculosis (tbc) in the state of valle del cauca, colombia, between 1991- 2000. a study of its effects was centered in 7 municipalities of valle del cauca with a complementary set of qualitative and quantitative techniques for data collection and analysis. a reduction in planning, control and regulation of tbc activities by state agencies was observed. new administrative structures and new funding sources did not produce the expected positive effects on tuberculosis control. instead, the quantity and quality of tuberculosis control activity were reduced as a consequence of the health sector reform. in conclusion, gsssh implementation affected negatively tuberculosis control activity.
Creencias de hombres de Cali, Colombia, sobre el examen digital rectal: hallazgos de un estudio exploratorio
Lucumí-Cuesta, Diego Iván;Cabrera-Arana, Gustavo Alonso;
Cadernos de Saúde Pública , 2005, DOI: 10.1590/S0102-311X2005000500022
Abstract: this study used the health beliefs model to explore beliefs on digital rectal examination (dre) to screen for prostrate cancer, prior to intent to submit to the examination, in men 45 to 64 years of age in cali, colombia. the 267 participants answered a questionnaire by means of prior selection through proportional sampling by quotas. a univariate and bivariate analysis showed that only 25.8% of the participants had submitted previously to digital rectal examination and that 68.1% intended to do so in the following 12 months. significant differences (p < 0.05) were found between a history of dre and schooling, socioeconomic status, health system coverage, perception of susceptibility to the disease, and perception of barriers and benefits. significant differences (p < 0.05) were found between intent to submit to dre and health system coverage, perception of severity of the disease, and perception of barriers. given the low level of history of dre and intent to submit to the examination, the results could help improve strategies to increase this practice at the local level.
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