Elaboración de sistema para el control de almacén de la empresa Musterión Finca Joselito – La Matanza

Este proyecto mejoró el proceso de respaldo de información importante sobre el control de almacenamiento en la empresa “MUSTERIÓN FINCA JOSELITO – LA MATANZA”. Para esto, se realizó un estudio, con el fin de determinar el proceso más adecuado, teniendo en cuenta el tipo de información a respaldar en los servidores físicos y virtuales, así mismo se desarrollaron pruebas de respaldo y restauración de información y se implementaron de forma periódica tales como pérdida de productividad, diferencias de inventario, Problemas en el servicio a los clientes: No obstante, el proceso de control de almacén es un proceso complejo que en los últimos años se ha supuesto a cambios importantes debido a la fuerza de los mercados ya que los almacenes están tendiendo a saturarse, obligando a la mayoría de empresas a adaptarse al cambio de automatizar este proceso. En la investigación encontramos que en la empresa no cuenta con un sistema donde almacenar sus datos del almacén debido a que tiene 3 tipos de almacenes donde se encuentran los siguientes como son: el almacén de productos de abono a las plantas, el almacén de empaque donde se encuentra todas las herramientas de empaque del banano, y por último el almacén de herramientas enfunde, todos estos datos son recolectados por escrito en un cuaderno y luego es llevado a la oficina. Según la información recogida de esta empresa y por los problemas encontrados se empleó este sistema para mejorar la información de los datos que son registrados a diarios por el personal que está encargado de esta área, a dicha persona se le capacitó para que domine este sistema y se le haga más fácil su trabajo y así no perdería la información, dando buenos resultados para la empresa, sus distribuidores, proveedores y personal de campo

Random Sample Community-Based Health Surveys: Does the Effort to Reach Participants Matter?

Objectives: Conducting health surveys with community-based random samples are essential to capture an otherwise unreachable population, but these surveys can be biased if the effort to reach participants is insufficient. This study determines the desirable amount of effort to minimise such bias. Design: A household-based health survey with random sampling and face-to-face interviews. Up to 11 visits, organised by canvassing rounds, were made to obtain an interview. Setting: Single-family homes in an underserved and understudied population in North Miami-Dade County, Florida, USA. Participants: Of a probabilistic sample of 2200 household addresses, 30 corresponded to empty lots, 74 were abandoned houses, 625 households declined to participate and 265 could not be reached and interviewed within 11 attempts. Analyses were performed on the 1206 remaining households. Primary outcome: Each household was asked if any of their members had been told by a doctor that they had high blood pressure, heart disease including heart attack, cancer, diabetes, anxiety/ depression, obesity or asthma. Responses to these questions were analysed by the number of visit attempts needed to obtain the interview. Results: Return per visit fell below 10% after four attempts, below 5% after six attempts and below 2% after eight attempts. As the effort increased, household size decreased, while household income and the percentage of interviewees active and employed increased; proportion of the seven health conditions decreased, four of which did so significantly: heart disease 20.4–9.2%, high blood pressure 63.5–58.1%, anxiety/depression 24.4–9.2% and obesity 21.8–12.6%. Beyond the fifth attempt, however, cumulative percentages varied by less than 1% and precision varied by less than 0.1%. Conclusions: In spite of the early and steep drop, sustaining at least five attempts to reach participants is necessary to reduce selection bias

Uso del Internet del estudiantado de la Universidad Centroamericana, con enfoque en las redes sociales

El art ículo presenta los resultados de un estudio sobre los usos de Internet que hace el estudiantado de la UCA, enfocándose en los hábitos de participación en las redes sociales existentes en línea. Fue realizado en el primer cuatrimestre de 2009 con un universo de aproximadamente siete mil estudiantes de las veinte carreras de Pregrado. Se aplicó una encuesta que indagaba sobre lugar y frecuencia de acceso a Internet, tipo de uso de la red, conocimiento y uso de las redes sociales y sus políticas de uso. Los principales resultados muestran que los estudiantes utilizan la Internet con mucha frecuencia y la principal actividad es la búsqueda de información. Otras actividades importantes están enfocadas a la comunicación con amigos a través del correo electrónico y el chat, y el entretenimiento a través de descarga de música, películas y juegos en línea. Dos terceras partes de los estudiantes participan como miembros de redes sociales, siendo Facebook y Hi5 las preferidas. La mayoría desconoce las políticas de uso de estas redes

The Association between Race and Survival among Pediatric Patients with Neuroblastoma in the US between 1973 and 2015

Background: Conclusive information regarding the influence of race on survival among neuroblastoma patients is limited. Our objective is to investigate the association between race and cause-specific survival in pediatric patients diagnosed with neuroblastoma in the US between 1973 and 2015.Methods: This was a retrospective cohort study using the Surveillance, Epidemiology, and End Result (SEER) database. Patients aged 17 and younger of black, white, or Asian Pacific Islander (API) race diagnosed with neuroblastoma from 1973-2015 were included (n = 2,119). The outcome variable was time from diagnosis to death. Covariates included age, gender, ethnicity, stage, tumor site, and year of diagnosis. Cox proportional hazard models were used to calculate hazard ratios and 95% confidence intervals.Results: There were no statistically significant differences in the hazard of survival for blacks (HR 0.93; 95% confidence interval (CI) 0.74-1.16) or API (HR 1.02; 95% CI 0.76-1.37) compared with whites. However, patients diagnosed between 2000-2004 (HR 0.46; 95% CI 0.36-0.59) and 2005-2015 (HR 0.33; 95% CI 0.26-0.41) had decreased hazards of death when compared to patients treated during 1973 to 1999.Conclusions: No association between race and survival time was found. However, survival improved among all patients treated during 2000-2004 and 2005-2015 compared with those treated before the year 2000, leading to a narrowing of the racial disparity based on survival.Peer reviewe

Smoking as a Risk Factor for Surgical Site Complications in Implant-Based Breast Surgery

Background Smoking is a cause of many postoperative complications, including delayed wound healing, tissue necrosis, and reconstructive flap loss. However, there is a paucity of evidence-based guidelines for smoking cessation in patients undergoing implant-based breast surgery. Objective The objective of this study was to determine if smoking is associated with wound dehiscence or superficial/deep surgical site infection (SSI) in women undergoing implant-based breast surgery. Methods Using the American College of Surgeons National Surgical Quality Improvement Program, data was obtained of U.S. adult females (n=10,077) between the ages of 18 and 70 who underwent insertion of a breast prosthesis from 2014 to 2016. The patient's preoperative smoking status, demographics, and comorbidities were analyzed to determine association with wound dehiscence, superficial SSI, and deep SSI. Unadjusted and adjusted logistic regression analyses were used to calculate odds ratios (OR) and 95% confidence intervals (95% CI). Results Patients who smoked had a statistically significant higher proportion of wound complications (2.4%) compared to non-smokers (1.3%; p Conclusions Our study suggests that smoking is an independent risk factor for postoperative complications in patients undergoing implant-based breast surgery. These results have significant clinical implications, as increased precautions can be taken in smokers undergoing breast surgery to minimize postoperative wound complications. Future studies may determine the optimal amount of time that patients should abstain from smoking prior to implant-based breast surgery.Peer reviewe

Historia y conceptos matemáticos en libros de texto de Matemáticas para la educación secundaria en Costa Rica (1949-2012)

Se muestran los resultados de un estudio sobre el uso de la historia de la matemática como organizador curricular y eje temático en libros de texto de matemática en educación secundaria en Costa Rica durante 1949-2012. Se ha implementado el Análisis Didáctico como técnica de análisis. Se evidencia las áreas y conceptos matemáticos abordados con mayor frecuencia desde un enfoque histórico en los libros de texto, los sistemas de representación y los contextos utilizados para mostrar estos conceptos matemáticos en los textos. Se establecieron cuatro etapas históricas definidas a partir de acontecimientos políticos, económicos, sociales y educativos que marcan el desarrollo del sistema educativo costarricense

Smoking as a Risk Factor for Surgical Site Complications in Implant-Based Breast Surgery

Background Smoking is a cause of many postoperative complications, including delayed wound healing, tissue necrosis, and reconstructive flap loss. However, there is a paucity of evidence-based guidelines for smoking cessation in patients undergoing implant-based breast surgery. Objective The objective of this study was to determine if smoking is associated with wound dehiscence or superficial/deep surgical site infection (SSI) in women undergoing implant-based breast surgery. Methods Using the American College of Surgeons National Surgical Quality Improvement Program, data was obtained of U.S. adult females (n=10,077) between the ages of 18 and 70 who underwent insertion of a breast prosthesis from 2014 to 2016. The patient's preoperative smoking status, demographics, and comorbidities were analyzed to determine association with wound dehiscence, superficial SSI, and deep SSI. Unadjusted and adjusted logistic regression analyses were used to calculate odds ratios (OR) and 95% confidence intervals (95% CI). Results Patients who smoked had a statistically significant higher proportion of wound complications (2.4%) compared to non-smokers (1.3%; p Conclusions Our study suggests that smoking is an independent risk factor for postoperative complications in patients undergoing implant-based breast surgery. These results have significant clinical implications, as increased precautions can be taken in smokers undergoing breast surgery to minimize postoperative wound complications. Future studies may determine the optimal amount of time that patients should abstain from smoking prior to implant-based breast surgery.Peer reviewe