Propuesta de control para manejo de inventarios y su efecto en la rentabilidad de la empresa Macoor Distribuciones, 2019

El presente trabajo de investigación denominado “Propuesta de Control para manejo de inventarios y su efecto en la rentabilidad de la empresa Macoor Distribuciones, 2019”, tiene como objetivo ver en qué medida la implementación de mejoras en el control de inventarios favorece la rentabilidad de la empresa Macoor Distribuciones. La metodología de la investigación es descriptiva con el fin de detallar las características de la situación de la empresa y explicativa para conocer la influencia sobre los resultados de la rentabilidad de la empresa, además se trabaja con un diseño experimental y un enfoque cuantitativo. En el diagnóstico inicial de la empresa se observó la falta de criterios técnicos para las decisiones de abastecimiento, además los productos no eran codificados lo que generaba desorden y pérdida de tiempo para la identificación rápida y certera de los productos, los formatos de control no eran actualizados y la empresa presentaba costos por pérdidas de productos. Con la intención de optimizar la situación inicial de la empresa, se propuso mejoras en el control de manejo de inventarios, que consistió en el diseño de un modelo KARDEX, el establecimiento de la codificación de acuerdo al tipo de producto, la elaboración de un flujograma del almacén y políticas para el control de inventarios. La medición de la efectividad de la propuesta está enfocada en la evaluación de los ratios de rentabilidad, obteniéndose como resultado un ROA inicial de 1.38% el cual se incrementó a 3.69%, un valor del ROE de 3.49% para el 2019 que se mejoró para el 2020 en 7.59% y una utilidad sobre las ventas que pasó de 0.54% a 1.49%. Concluyéndose que la propuesta de Control para manejo de inventarios incide positivamente en la rentabilidad de la empresa Macoor Distribuciones.Campus Arequip

Estrategias de promoción de ventas y satisfacción de los clientes de Compartamos Financiera Agencia La Esperanza 2021

Compartamos Financiera es una entidad que lleva 23 años en el mercado, su misión es impulsar los sueños de sus clientes atendiendo sus necesidades financieras con sentido humano, trabajando para llevar oportunidades que promuevan su desarrollo y el de sus comunidades. La investigación tuvo como objetivo general determinar cómo las estrategias de promoción de ventas se relacionan con la satisfacción de los clientes de Compartamos Financiera Agencia La Esperanza 2021. En la metodología utilizada para la recolección de datos se utilizó la técnica de la encuesta cuyo instrumento fue el cuestionario, para corroborar la validez y confiabilidad se usó el Alfa de Cronbach y para la contrastación de la hipótesis se utilizó la prueba estadística de coeficiente de correlación de Pearson. La población fueron 5600 clientes y la muestra estuvo representado por 360 personas. El diseño de investigación fue no experimental, de tipo transversal correlacional, buscando determinar la relación entre las variables estrategias de promoción de ventas y la satisfacción de los clientes. Se obtuvo como resultado un valor del coeficiente de correlación de Pearson de 0,105 y el valor de Sig. fue menor a 0.05, por lo que se concluyó que las estrategias de promoción de ventas no tienen una relación positiva y significativa.Compartamos Financiera is an entity that has been in the market for 23 years, its mission is to promote the dreams of its clients, attending to their financial needs with a humane sense, working to bring opportunities that promotetheir development and that of their communities. The general objective of the research was to determine how sales promotion strategies are related to the satisfaction of the clients of Compartamos Financiera Agencia La Esperanza 2021. In the methodology used for data collection, the survey technique was used, whose instrument was the questionnaire, to corroborate the validity and reliability, Cronbach's Alpha was used and to test the hypothesis, the statistical test of Pearson's correlation coefficient was used. The population was 5600 clients and the sample was represented by 360 people. The research design was non experimental, correlational cross-sectional, seeking to determine therelationship between the variables sales promotion strategies and customer satisfaction. As a result, a Pearson correlation coefficient value of 0.105 was obtained and the Sig value was less than 0.05, so it was concluded that sales promotion strategies do not have a positive and significant relationshipTesi

Weight loss methods and diet history among bariatric surgery candidates

Background: Nowadays there are multiple conservative treatments, medical and alternative for weight loss, with high failure levels in patients with obesity. The history of variability, effectiveness, and diversity of such treatments has been poorly explored in candidates to bariatric surgery, particularly in Latin America, where high rates of overweight and obesity are found.Methods: Cross-sectional study in a single center, where a questionnaire was given to all patients who presented for bariatric surgery evaluation. The primary objective was to identify the dietary history and methods used for weight loss in patients with obesity, focusing in the diet type/method, length, effectiveness, and weight regain. Also, a basal anthropometric/demographic analysis, and type of method used (diet, medications, homeopathy, supplements, and alternative therapies) was performed.Results: 400 questionnaires were evaluated, from which the average age was 40.2 years, 79.5% representing female sex, and an average weight of 114.8 kg. Childhood obesity was reported in 38%. 64.5% used among 1-5 methods to lose weight historically, but 74.7% never associated physical activity. Supervised diet (with and without medication) was the most effective method (44% of cases used medication); however, they were discontinued in 50.5% due to adverse effects.Conclusions: The use of a diet or alternative treatments, with or without medications, have shown poor weight loss and minimum durability. The use of medication is very common, but most people discontinue their use due to adverse effects events

Avances en Interacción Humano-Computadora

Crowdsourced content creation like articles or slogans can be powered by crowds of volunteers or workers from paid task markets. Volunteers often have expertise and are intrinsically motivated, but are a limited resource, and are not always reliably available. On the other hand, paid crowd workers are reliably available, can be guided to produce high-quality content, but cost money. How can these different populations of crowd workers be leveraged together to power cost-effective yet high-quality crowdpowered content-creation systems? To answer this question, we need to understand the strengths and weaknesses of each. We conducted an online study where we hired paid crowd workers and recruited volunteers from social media to complete three content creation tasks for three real-world non-profit organizations that focus on empowering women. These tasks ranged in complexity from simply generating keywords or slogans to creating a draft biographical article. Our results show that paid crowds completed work and structured content following editorial guidelines more effectively. However, volunteer crowds provide content that is more original. Based on the findings, we suggest that crowdpowered content-creation systems could gain the best of both worlds by leveraging volunteers to scaffold the direction that original content should take; while having paid crowd workers structure content and prepare it for real world use.Avances en Interacción Humano computadorafile:///C:/Users/Propietario/Downloads/65-13-135-3-10-20210201.pd

Side switch frequency while masticating different chewing materials, and its relationship with other masticatory behaviors and sensory perceptions.

Objective: This cross-sectional study aimed to establish normative values for masticatory side switch (MSS) frequency in young Mexican adults and to assess the relationship between various indices and MSS frequency when masticating different chewing materials. Design: We enrolled 101 dentate adults and performed four masticatory assays that involved masticating different chewing materials (i.e., two-colored chewing gum, sweet cracker, salty cracker, and bread). Participants were asked to eat and swallow these foods and to chew the gum for 40 cycles and the following indices were determined: MSS index (MSSI), unilateral chewing index, chewing cycle duration, and number of cycles before terminal swallowing. The participants then rated perceived flavor intensity, salivary flow, and muscle fatigue during each trial. Results: The MSSI ranged from 0.03-0.06 (10th percentile) to 0.48-0.54 (90th percentile). A repeated-measures general linear model revealed a mean MSSI value of 0.28 (95 %CI, 0.25-0.30) adjusted by several factors. Male sex, soft food, and the last chewing period were associated with lower MSS frequency. Spearman's test showed a high correlation for the MSSI among the different foods. MSSI correlated negatively with the unilateral chewing index for each chewing material and with number of cycles for the sweet cracker. However, no significant correlation was detected between MSSI and sensory perception. Conclusions: In healthy dentate individuals, the mean MSS relative frequency is 25-30 % with an 80-central percentile of 5-50 % of the maximum possible side changes. Lower MSS frequencies were detected in men, when chewing soft food, and during the final chewing period

Determinación de mutaciones (del E746-A750 exón 19 y L858R exón 21) en el gen receptor del factor de crecimiento epidérmico (EGFR) en muestras de suero y biopsia de carcinoma pulmonar no microcítico (CPNM)

Introducción: Las mutaciones, Del_E746_A750 exón 19 y L858R exón 21 del gen EGFR en células tumorales de CPNM representan biomarcadores de respuesta a fármacos inhibidores de tirosina cinasa (ITK). Pacientes con tumores positivos a mutaciones EGFR muestran mejor respuesta y mayor sobrevivencia. Estas mutaciones ocupan el 90% de las mutaciones en cancer de pulmón. Objetivo: Evaluar la frecuencia de las mutaciones Del_E746_A750-exon 19 y L858R-exon 21 del EGFR en muestras de biopsia de CPNM y en muestras de suero de población abierta de Yucatán. Material y métodos: Se seleccionaron 19 muestras de biopsia de CNPM y 101 sueros de sujetos sanos. Las mutaciones Del_E746_A750 y L858R en EGFR se determinaron mediante amplificación por PCR alelo específica (PCR-ASO). Se calcularon las frecuencias genotípicas y alélicas y su distribución según Hardy Weinberg, utilizando la plataforma SNPstats. Resultados: En muestras de suero se determinó el genotipo homocigoto (1/1) en 26.58%, 73.42% el heterocigoto (1/0) y ausencia del genotipo mutante con deleción (0/0) para Del E746_A750; en tanto que para L858R, el 21.78% resultó homocigoto (TT), 54.46% heterocigoto (T/G) y 23.76% mutantes GG. En las biopsias el heterocigoto fue más frecuente en ambas mutaciones 63.16% y 73.68% para Del_E746_A750 y L858R, respectivamente. Conclusión: La frecuencia de las mutaciones del gen EGFR en la población local de Yucatán (sueros) fue de 36.71% para la deleción Del746-750 en exón 19 y 50.99% para L858R en exón 21. La distribución de las mutaciones en muestras de biopsia CPNM  resultó en 42.11% para cada mutación estudiada

EAI Endorsed Transactions

Worldwide Fetal-Maternal morbidity and mortality is frightfully high. Most of thesediseases occur in developing countries. One of the main reasons for this problem, after gestationalhypertension and complications in childbirth, is infections. Urinary Tract Infections (UTI) during pregnancy isone of the main causes for fetal-maternal morbidity and mortality in Mexico. Among others, the pervasivenessand heterogeneity of data in Electronic Medical Records (EMR) complicates early diagnosis and treatment ofUTI.OBJECTIVES: Our goal is extract empirical knowledge, in the form of association rules, that generalizesymptomatology and treatment of UTI patients with positive and nagative diagnosis.METHODS: In this study, we developed a criterion to extract words and expressions that uniquely characterizeeach patient class. We extracted association rules from EMRs and evaluated its level of correspondencebetween the rules and the extracted word sets.RESULTS: By defining a bound on word frequency usage and evaluating the positive to negative word ratio wewere able to identify word sets that uniquely characterize each patient class. A bound of 47 enabled extractionof 25 unique words and expressions for each patient class. Further, approximately 17% and 27% of associationrules drew terms from each word set correspondingly.CONCLUSION: This work seeks to promote the creation of more effective criterions to extract features, fromEMRs, that improve characterization of patients and that ultimately lead to a more accurate diagnosis of UTIs.https://www.researchgate.net/publication/338907851_Towards_early_and_automatic_detection_of_Urinary_Infection_during_pregnanc

Expert Systems

The coding of observational data is commonly used to analyse and evaluate human behaviours. The technique can help researchers inform the design and impact of, for example, an Ubicomp system by studying specific behaviours of interest. There are some tools that can alleviate the burden of observational coding, like those that help to collect and organise data, but can still be error‐prone and time‐consuming. Moreover, most of these tools lack automation, requiring intense human interaction. In order to mitigate these issues, computer vision (CV) and machine learning (ML) techniques could be used to automate observational coding, but little work has focused on analysing the feasibility of such an approach, with the goal of reducing the total coding time while maintaining accuracy. In this work, we address this question by proposing an automated approach for a real‐world case study and compare it to manual coding. The study is composed of 10 videos with an average duration of 17 min each, where the goal is to determine the attention of children with autism that participate in a neurofeedback therapy session. Each video was hand‐coded by three human observers to define the ground truth and to measure the manual coding time. Results show that it is feasible to automate the coding of observational behaviours and obtain a noticeable reduction in coding time, but with a slight loss in accuracy. Moreover, we illustrate that the best solution would be a hybrid approach, using a semi‐automated system that combines human expertise and ML predictions Keywords Observational studies, Coding behaviours, Automatic coding, Computer‐Vision, Machine Learning.https://onlinelibrary.wiley.com/doi/abs/10.1111/exsy.125

SATORI: a support tool for young adults with autism to self-manage stress and anxiety

Individuals with autism may experience higher levels of stress and anxiety for longer periods than neurotypical individuals. Traditional techniques to provide stress relief and anxiety management include support that reminds people how to face stressful situations. In this research we present the results of a qualitative study that led to the design of SATORI, a support tool composed of three interfaces to help young adults with autism manage autonomously the anxiety caused by stressful situations from their daily life. We close discussing directions for future work.https://dl.acm.org/doi/10.1145/3488392.348839