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Search Results: 1 - 10 of 201766 matches for " Sandra Liliana Gómez Gómez "
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Comparación clínica y radiográfica del efecto del péndulo con anclaje esquelético vs. dentoalveolar Clinical and radiographic comparison of the pendulum effect with skeletal anchorage versus dentoalveolar anchorage
Sandra Liliana Gómez Gómez,John Jairo Betancur Pérez,Jorge Alberto Arismendi,Jorge Humberto Gil Cardona
Revista Facultad de Odontología Universidad de Antioquia , 2012,
Abstract: INTRODUCCIóN: este estudio pretende comparar clínica y radiográficamente los efectos producidos por el distalizador péndulo en dos formas de anclaje: esquelético y dentoalveolar, en pacientes con maloclusiones clase II de la Facultad de Odontología de la Universidad de Antioquia. MéTODOS: se hizo un estudio preexperimental comparativo. Se utilizó una muestra de 19 pacientes con edades entre los 15 y 26 a os, divididos en dos grupos: 9 pacientes tratados con péndulo de anclaje esquelético y 10 con péndulo de anclaje dentoalveolar. A todos los pacientes se les tomaron radiografías cefálicas laterales y modelos de estudio, al inicio y al final del tiempo de evaluación (6 meses). RESULTADOS: los resultados clínicos y radiográficos muestran diferencias significativas en los efectos producidos a nivel de incisivos y molares. El péndulo con anclaje dentoalveolar presentó en promedio proinclinación de los incisivos de 4°, mientras que el péndulo con anclaje esquelético no mostró variación. En cuanto al efecto producido en los molares se observó mayor cantidad de distalación por inclinación (14,1°) en el péndulo con anclaje dentoalveolar que en el péndulo con anclaje esquelético (7,34°). CONCLUSIONES: el péndulo bajo las dos modalidades de anclaje mostró ser un dispositivo eficaz para distalar molares, sin embargo es importante tener en cuenta el efecto que se quiere producir sobre los incisivos, pues cada uno produce resultados diferentes. INTRODUCTION: This study seeks to clinically and radiographically compare the effects produced by the distalization pendulum in both skeletal and dentoalveolar anchorage, in patients with Class II malocclusions at the Universidad de Antioquia's School of Dentistry METHODS: a pre-experimental comparative study was carried out on a sample of 19 patients aged 15-26 years, divided into two groups: 9 patients treated with bone anchorage pendulum and 10 with dentoalveolar anchorage pendulum. Lateral cephalic radiographs of each patient were taken and study models were done at the beginning and the end of evaluation period (6 months). RESULTS: both clinical and radiographic results show significant differences in the effects produced at the incisors and molars. The pendulum with dentoalveolar anchorage presented an average incisor proclination of 4°, while the pendulum with skeletal anchorage showed no variation. Concerning the effect produced in molars, a greater amount of distalization as a result of inclination was observed in the pendulum with dentoalveolar anchorage (14.1°) in comparison to the one with skeletal anchorage (7.34
Valoración clínica y cefalométrica del aparato de distracción de García? para el tratamiento de la mordida abierta anterior en pacientes atendidos en la Facultad de Odontologóa,Universidad de Antioquia, Medellín
Betancur Pérez,Jhon Jairo; Angulo Martínez,Andrés Aníbal; Gómez Gómez,Sandra Liliana; Gómez Restrepo,ángela María;
Revista Facultad de Odontología Universidad de Antioquia , 2009,
Abstract: introduction: this study aims to determine radiographic and clinical changes obtained with the garcia’s distractor appliance? and its craniofacial, dental and facial cosmetic effects in patients with anterior open bite. methods: a prospective clinical quasi-experimental study in 9 subjects, 2 men and 7 women, 7 of them in a phase of active growth with an average age of 11.7 years and 2 adults with an average age of 30 years, in which cephalic radiographs were obtained at the beginning, third and sixth month of treatment. the clinical effect was assessed by measuring monthly the overbite and overjet with a digital gaugediscover?. in the statistical analysis, descriptive measures were obtained using anova test for repeated measurements to determine changes over time, with a level of significance of 0.05. results: the radiographic findings showed an increase in the goniac angle in the growing patients; also, an increase in the overbite and a decrease in the overjet were observed, these changes are explained by the intrusion of the upper molars and retro inclination of the upper and lower incisors; facially, there was a decrease in the angle of convexity in the soft tissues. conclusions: the garcia’s distractor appliance? used for a period of six month in growing patients improved the open bite by intrusion of upper molars and retro inclination of upper and lower incisors.
Valoración clínica y cefalométrica del aparato de distracción de García para el tratamiento de la mordida abierta anterior en pacientes atendidos en la Facultad de Odontologóa,Universidad de Antioquia, Medellín Radiographic and clinical assessment of García’s distractor appliance for the treatment of anterior open bite in patients treated at the College of Dentistry, University of Antioquia, Medellín
Jhon Jairo Betancur Pérez,Andrés Aníbal Angulo Martínez,Sandra Liliana Gómez Gómez,ángela María Gómez Restrepo
Revista Facultad de Odontología Universidad de Antioquia , 2009,
Abstract: INTRODUCCIóN: esta investigación pretende determinar los cambios radiográficos y clínicos obtenidos con el distractor de García en cuanto a sus efectos craneofaciales, dentales y de cosmética facial en pacientes con mordida abierta anterior. MéTODOS: se hizo un estudio clínico prospectivo cuasi experimental en nueve sujetos dos hombres siete mujeres, siete de ellos en crecimiento con un promedio de edad de 11,7 a os y 2 adultos con un promedio de edad de 30 a os; en quienes cuales se obtuvieron radiografías cefálicas laterales al inicio, tercero y sexto mes de tratamiento. El efecto clínico se valoró mensualmente midiendo con un calibrador digital Discover la sobremordida vertical y horizontal. En el análisis estadístico se obtuvieron medidas descriptivas y se utilizó la prueba ANOVA de medidas repetidas para determinar los cambios en el tiempo, con nivel de significancia de 0,05. RESULTADOS: los hallazgos muestran en los pacientes en crecimiento, a nivel craneofacial incremento en el ángulo goniaco, a nivel dentoalveolar incremento en la sobremordida vertical acompa ada con disminución en la sobremordida horizontal explicada por intrusión del molar superior y retroinclinación de incisivos superiores e inferiores, y a nivel facial disminución en el ángulo de la convexidad de tejidos blandos. CONCLUSIóN: el aparato distractor de García utilizado durante seis meses en los pacientes en crecimiento de esta muestra mejoró la mordida abierta, tanto por intrusión de molares superiores como por retroinclinación de incisivos superiores e inferiores. INTRODUCTION: this study aims to determine radiographic and clinical changes obtained with the Garcia’s distractor appliance and its craniofacial, dental and facial cosmetic effects in patients with anterior open bite. METHODS: a prospective clinical quasi-experimental study in 9 subjects, 2 men and 7 women, 7 of them in a phase of active growth with an average age of 11.7 years and 2 adults with an average age of 30 years, in which cephalic radiographs were obtained at the beginning, third and sixth month of treatment. The clinical effect was assessed by measuring monthly the overbite and overjet with a digital gaugeDiscover . In the statistical analysis, descriptive measures were obtained using ANOVA test for repeated measurements to determine changes over time, with a level of significance of 0.05. RESULTS: the radiographic findings showed an increase in the goniac angle in the growing patients; also, an increase in the overbite and a decrease in the overjet were observed, these changes are explained by the int
UNA REVISIóN A LOS ESTUDIOS SOBRE MIGRACIóN INTERNACIONAL EN COLOMBIA
BOTóN GóMEZ,SANDRA LILIANA; GONZáLEZ ROMáN,PATRICIA;
Revista Facultad de Ciencias Económicas: Investigación y Reflexión , 2010,
Abstract: international migration is an increasing tendency that has been growing each time faster in last two decades. phenomenon of great importance for departure and destination countries. this article analyzes points of view of various authors whose have written about this topic, mainly considering economic determinants of international migration in colombia and the consequences of this phenomenon over the last decades. the evidence found shows, first of all, that migration to developed countries or countries with higher levels of industrialization is each time more accelerated; secondly, that emigration in colombia is explained for better labor and economic alternatives, and finally; that wage gap among industrialized countries and developing countries stands an important aspect when the decision of migration is being made.
Proteínas pro-apoptóticas y anti-apoptóticas como factores de pronóstico en Linfoma B difuso de célula grande en adultos
Martín-Reyes,Liliana; Quijano-Gómez,Sandra; Bravo-Hernández,María Mercedes;
Universitas Scientiarum , 2010,
Abstract: objective. our purpose was to evaluate the expression of antiapoptotic proteins bcl-2 and bcl-xl, and pro-apoptotic proteins bad and bax and their association with survival, in patients with dlbcl. materials and methods. we analyzed biopsies from 28 patients diagnosed with dlbcl. the expression of the apoptotic regulators was assessed by western blot. the association between protein expression and survival was analyzed by the kaplan-meier method and the log-rank test. results. bcl-2, bak, bad and bcl-xl proteins were expressed in 78.8, 71.4, 64.3 and 50% of the dlbcl cases, respectively. we found no association between the presence of proteins or their expression levels and overall survival. both bad and bcl-xl were associated with higher disease-free survival (33.3% vs. 20.0%, p lr test= 0,003; 42.9% vs. 14.3%, p lr test= 0.03, respectively). high expression levels of bad and bcl-xl were associated with a higher disease-free survival (35.7% vs. 21.4%, p lr test= 0.012 y 42.9% vs. 14.3%, p lr test= 0.045, respectively). conclusion. given that expression of the bad protein in tumors was related to a higher disease-free survival, patients with low expression levels of bad could be candidates in future therapies oriented towards the inhibition of the anti-apoptotic proteins bcl-xl and bcl-2 by using molecules that bind specifically to the bh3 domain.
Entre Lévi-Strauss y el Departamento de Antropología de la Universidad Nacional de Colombia
Acero Pulgarín Sandra Liliana,Gómez Fonseca María Camila,Ortiz Hernández Natalia,Palomo Quintero Ana María
Maguaré , 2010,
Abstract: Se discuten algunas nociones sobre la definición del ámbito de la antropología, su historia y sus perspectivas hacia el futuro partiendo de algunas reflexiones que sobre este asunto formuló Claude Lévi-Strauss. Con este fin se abordan tres textos de su autoría: la célebre conferencia inaugural de la Cátedra de Antropología del Collège de France (1960); “ La antropología en peligro de muerte?”(1962), y “Anthropology: Its Achievements and Future” (1966). Las autoras reflexionan sobre el estado actual de la formación del Departamento de Antropología de la Universidad Nacional en relación con nociones planteadas en su interior sobre temas como el lugar del trabajo de campo, el papel de la lingüística, la existencia de un “otro”, la antropología aplicada y la vigencia de las teorías. Con esto no se pretende establecer una comparación entre una y otra forma de pensar la disciplina, sino exponer dos de las incontables formas de definirla: una se alada por el padre del estructuralismo y la otra propuesta en nuestros pasillos.
Proteínas pro-apoptóticas y anti-apoptóticas como factores de pronóstico en Linfoma B difuso de célula grande en adultos
Liliana Martín-Reyes,Sandra Quijano-Gómez,María Mercedes Bravo-Hernández
Universitas Scientiarum , 2010,
Abstract: Pro-apoptotic and anti-apoptotic proteins as prognostic factors in diffuse large B-cell lymphoma in adults. Objective. Ourpurpose was to evaluate the expression of antiapoptotic proteins Bcl-2 and Bcl-xL,and pro-apoptotic proteins Bad and Bax and theirassociation with survival, in patients with DLBCL. Materials and methods. We analyzed biopsies from 28 patients diagnosed withDLBCL. The expression of the apoptotic regulators was assessed by western blot. The association between protein expression andsurvival was analyzed by the Kaplan-Meier method and the log-rank test. Results. Bcl-2, Bak, Bad and Bcl-xL proteins were expressedin 78.8, 71.4, 64.3 and 50% of the DLBCL cases, respectively. We found no association between the presence of proteins or theirexpression levels and overall survival. Both Bad and Bcl-xL were associated with higher disease-free survival (33.3% vs. 20.0%, p LR test= 0,003; 42.9% vs. 14.3%, p LR test= 0.03, respectively). High expression levels of Bad and Bcl-xL were associated with a higher disease-free survival (35.7% vs. 21.4%, p LR test= 0.012 y 42.9% vs. 14.3%, p LR test= 0.045, respectively). Conclusion. Given that expression of the Bad protein in tumors was related to a higher disease-free survival, patients with low expression levels of Bad could be candidates in future therapies oriented towards the inhibition of the anti-apoptotic proteins Bcl-xL and Bcl-2 by using molecules that bind specifically to the BH3 domain.
Neumonía necrosante por Staphylococcus aureus extrahospitalario resistente a la meticilina: reporte de dos casos en Colombia
Gómez,Carlos Hernando; Perilla,Ana María; González,Camilo; Valderrama,Sandra Liliana; Vanegas,Natasha; Chavarro,Bibiana; Triana,Luis Carlos; Támara,José Roberto; álvarez,Carlos Arturo;
Biomédica , 2009,
Abstract: the emergence of community-acquired methicillin-resistant staphylococcus aureus (ca-mrsa) as a cause of severe infections has been described in the recent years. in 2006, the first report of skin and soft tissue infection by ca-mrsa was published in colombia. herein, two additional cases of ca-mrsa are reported with a clinical course characterized by rapid progression, prolonged stay in the intensive care unit and complication of pneumonia with the onset of empyema. both adult patients developed acute renal failure, and were treated with linezolide; the subsequent clinical response showed adequate treatment response. molecular characterization of the isolates indicated the presence of the meca gene carrying the cassette sccmec type iv and the production of the toxin panton-valentine leukocidin.
La subcontratación en la minería en Chile: elementos teóricos para el análisis
Leiva Gómez,Sandra;
Polis (Santiago) , 2009, DOI: 10.4067/S0718-65682009000300007
Abstract: strikes carried out in recent years by subcontracted workers of the great mining reveal that the out-sourcing law has not fulfilled the objective of decreasing the conflict between subcontracted workers, subcontractors and large mining companies. this article analyzes the outsourcing in the mining in chile, giving theoretical and empirical antecedents that allow explaining such conflicts. from a sociological point of view, refers to the loss of centrality of wage labor and subsequent growth of atypical employment. the available information points out on the other hand a high workers percentage in out-sourcing regime in the mining. it is concluded that in some situations is presented a disguised employment relationships, which lead to the creation of workers first and second class. subcontracted workers assert that they should have same rights and privileges that his contracted pairs, because they carry out exactly the same type of work.
La subcontratación en la minería en Chile: elementos teóricos para el análisis
Sandra Leiva Gómez
Polis : Revista de la Universidad Bolivariana , 2009,
Abstract: Las huelgas que han protagonizado en los últimos a os los trabajadores subcontratados de la gran minería revelan que la ley de subcontratación no ha cumplido el objetivo de disminuir el conflicto entre trabajadores subcontratados, empresas subcontratistas y grandes empresas mineras. Este artículo analiza la subcontratación en la minería en Chile, entregando antecedentes teóricos y empíricos que permitan explicar tales conflictos. Desde un punto de vista sociológico, se alude a la pérdida de centralidad del trabajo asalariado y consiguiente aumento de formas de empleo atípicas. La empiria indica por otro lado un alto porcentaje de trabajadores en régimen de subcontratación en la minería. Se concluye que en algunas situaciones se presenta un encubrimiento laboral, que llevaría a la creación de trabajadores de primera y segunda categoría. Los trabajadores subcontratados afirman que deberían tener los mismos derechos y privilegios que sus pares contratados, porque realizan exactamente el mismo tipo de trabajo.
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