Outsourcing de software: Variables críticas en el proceso de toma de decisiones (Software outsourcing: Variables involved in decision making)

Abstract. The Software Outsourcing has become a solution for organizations or businesses, due to various reasons or variables that range from reducing costs to keep their technology updated. Outsourcing is defined as business processes that are performed by an organization (Supplier) establishes a contractual relationship (Costumer-Supplier) and is given the responsibility for execution of business processes to the supplier. Based on the significant investment in imports generated by companies in Mexico, it was performed a literature review to identify the key variables that, in principle, influence the decision to turn to Software Outsourcing and, at the end, we propose a Software Outsourcing Model. Resumen. El Outsourcing de Software se ha convertido en una solución para las organizaciones o empresas, debido a diferentes motivos o variables que van desde reducir costos hasta mantener su tecnología actualizada. El Outsourcing lo definimos como los procesos de negocio que son realizados por una organización (Proveedor), se establece una relación contractual (Cliente-Proveedor) y se le da la responsabilidad de la ejecución de los procesos de negocio al proveedor. Partiendo de la importante inversión en importaciones, generada por las empresas en México, se realiza una revisión de literatura para identificar las principales variables que, en principio, influyen en la decisión de recurrir al Outsourcing de Software y, finalmente, se propone un Modelo de Outsourcing de Software

Factores endógenos y exógenos que impactan en el uso de la biblioteca en tres universidades del área metropolitana de Monterrey, Nuevo León

La presente investigación se propuso identificar los factores que motivan a los estudiantes de tres instituciones de educación superior del área metropolitana de Monterrey a utilizar la biblioteca universitaria. Para abordar la cuestión se diseñó un modelo de análisis multivariable que integra nueve factores, los cuales se desprenden de la propia operación de la biblioteca (factores endógenos), así como del contexto académico y cultural en el cual ésta efectúa su función (factores exógenos). El modelo se aplicó a las percepciones de una muestra estratificada de alumnos de sexto semestre de las tres instituciones participantes, medidas con el auxilio de una escala de Likert. Los resultados comprobaron la predicción del modelo y mostraron la existencia de cinco variables que impactan de manera significativa en el uso de la biblioteca universitaria. Posteriormente se analizaron muestras individuales de las tres instituciones y se agrupó a los alumnos en tres áreas de conocimiento. Se obtuvieron resultados significativos diferentes en cada una de las muestras. Abstract The purpose of this research was to identify the factors that motivate students to use libraries in three universities in metropolitan Monterrey. The study employed a multivariate analysis model incorporating factors associated exclusively with the library’s operation (endogenous factors) and factors associated with the academic and cultural context in which the library operates (exogenous factors). A stratified sample of sixth semester students enrolled in the three universities responded to the instrument designed to measure the target perceptions. Results show that five variables (out of nine) predicted by the model in fact significantly influence use of the university library. Additionally, the study analyzes individual samples from the three universities, grouping these into three major knowledge areas. Measures of library use for these groups are significantly distinct

Consideraciones contractuales del outsourcing, para el desarrollo de Software (Outsourcing contractual considerations, for Software development)

Abstract. Software Outsourcing has become a solution for organizations due to different reasons that companies consider to get some benefit from doing any business process. After evaluating what those benefits and the decision to resort to outsourcing, the company considers an outsourcing contract and becomes a client company. The contents of the outsourcing contract is based on factors that companies consider to hire an outsourcing provider for software development. Based on the significant investment in recruiting software provider for businesses in Mexico, performed a literature review to identify key variables that, in principle, influence the hiring of a vendor whose business is software development. Resumen. El Outsourcing de Software se ha convertido en una solución para las organizaciones, debido a diferentes motivos que las empresas consideran para obtener ciertos beneficios al realizar algún proceso de su negocio. Después de evaluar cuales son esos beneficios y se toma la decisión de recurrir al Outsourcing, la empresa considera un contrato de Outsourcing y pasa a ser una empresa cliente. El contenido del contrato de Outsourcing, está basado en factores que las empresas consideran para contratar a un proveedor de Outsourcing para el desarrollo de Software. Partiendo de la importante inversión en la contratación de proveedores de Software por las empresas en México, se realiza una revisión de literatura para identificar las principales variables que, en principio, influyen en la contratación de un proveedor, cuya actividad es el desarrollo de software

Variables que influyen en el desarrollo de las competencias centrales, al requerir software en la empresa (Variables that influence the core competencies development, by requiring software in the company)

Abstract: In this paper, we present a study in a business context, identifying the variables that influence the core competencies development and help to generate a competitive advantage. The literature review identifies variables that, in principle, help a company to innovate, sustainability, survival, and compete in the market. We propose a research model and then perform field work and analysis of results by pointing out the variables that are best represented in the research and make their respective discussion. Resumen: En este trabajo, se presenta un estudio realizado en el contexto empresarial, identificando las variables que influyen en el desarrollo de las competencias centrales y ayuden a generar una ventaja competitiva. Se realiza una revisión de literatura para identificar las variables que, en principio, ayudan a una empresa a innovar, a la sustentabilidad, a la supervivencia, y competir en el mercado. Se propone un modelo de investigación para después realizar el trabajo de campo y mediante un análisis de resultados señalar las variables que tienen mayor representación en la investigación y realizar su respectiva discusión

Velocidad máxima en partidos y velocidad máxima de sprint en jugadores jóvenes de fútbol

En los últimos años, la tecnología GPS para recopilar información de recorrido se ha convertido en una herramienta vital para monitorizar la carga de entrenamiento. El preparador físico de futbol ha implementado este dispositivo como la principal forma para cuantificar el volumen e intensidad de trabajo en futbolistas profesionales. No obstante, en categorías juveniles es menos frecuente ver esta tecnología usada para conocer el rendimiento de los jóvenes futbolistas. Con el uso de los GPS se pueden obtener diferentes indicadores que le son de gran utilidad al preparador físico, y le permiten determinar la carga externa durante la sesión o los partidos. Sin embargo, existen indicadores de mayor importancia para los preparadores físicos, y esto va depender del criterio de cada uno. Esta investigación se centro en el indicador de rendimiento de la velocidad máxima

Conduits for myocardial revascularization grafts: the importance of morphology and imaging

The therapeutic options for patients with multivessel coronary artery disease, consist of pharmacological treatment, percutaneous coronary intervention and coronary artery bypass graft surgery. The ultimate goal of this surgery is to achieve complete revascularization with conduits that remain permeable for the remainder of the life of the patient. Some of the conduits used in this type of surgery, are the great saphenous vein, the internal thoracic artery, the radial artery and the ulnar artery. For a vascular conduit to be selected as a coronary revascularization graft, it must exhibit the following characteristics: sufficient length, lumen diameter and thickness of the vessel wall. It must also have minimal in situ ischemic consequences and an acceptable permeability over time of the conduit. Recent literatures of these conduits, as well as the importance of morphological and imaging studies are reviewed in this article

Ethnobotany in Rayones, Nuevo León, México

Trough collections of plants and interviews with 110 individuals, an ethnobotanical study was conducted in order to determine the knowledge and use plant species in Rayones, Nuevo Leon, Mexico. The aim of this study was to record all useful plants and their uses, to know whether differences exist in the knowledge about the number of species and uses between women and men, and to know if there is a correlation between the age of individuals and knowledge of species and their uses

Analysis of immunization time, amplitude, and adverse events of seven different vaccines against SARS-CoV-2 across four different countries

BackgroundScarce information exists in relation to the comparison of seroconversion and adverse events following immunization (AEFI) with different SARS-CoV-2 vaccines. Our aim was to correlate the magnitude of the antibody response to vaccination with previous clinical conditions and AEFI.MethodsA multicentric comparative study where SARS-CoV-2 spike 1-2 IgG antibodies IgG titers were measured at baseline, 21-28 days after the first and second dose (when applicable) of the following vaccines: BNT162b2 mRNA, mRNA-1273, Gam-COVID-Vac, Coronavac, ChAdOx1-S, Ad5-nCoV and Ad26.COV2. Mixed model and Poisson generalized linear models were performed.ResultsWe recruited 1867 individuals [52 (SD 16.8) years old, 52% men]. All vaccines enhanced anti-S1 and anti-S2 IgG antibodies over time (p<0.01). The highest increase after the first and second dose was observed in mRNA-1273 (p<0.001). There was an effect of previous SARS-CoV-2 infection; and an interaction of age with previous SARS-CoV-2 infection, Gam-COVID-Vac and ChAdOx1-S (p<0.01). There was a negative correlation of Severe or Systemic AEFI (AEs) of naïve SARS-CoV-2 subjects with age and sex (p<0.001); a positive interaction between the delta of antibodies with Gam-COVID-Vac (p=0.002). Coronavac, Gam-COVID-Vac and ChAdOx1-S had less AEs compared to BNT162b (p<0.01). mRNA-1273 had the highest number of AEFIs. The delta of the antibodies showed an association with AEFIs in previously infected individuals (p<0.001).ConclusionsThe magnitude of seroconversion is predicted by age, vaccine type and SARS-CoV-2 exposure. AEs are correlated with age, sex, and vaccine type. The delta of the antibody response only correlates with AEs in patients previously exposed to SARS-CoV-2.Registration numberClinicalTrials.gov, identifier NCT05228912

Effect of Vitamin D₃ Supplementation vs. Dietary–Hygienic Measures on SARS-CoV-2 Infection Rates in Hospital Workers with 25-Hydroxyvitamin D3 [25(OH)D3] Levels ≥20 ng/mL

Background: There is scant information on the effect of supplementation with vitamin D3 in SARS-CoV-2 infection cases when patient 25-hydroxyvitamin D3 [25(OH)D3] levels are between 20–100 ng/mL. We aimed to evaluate the effect of supplementation with vitamin D3 vs. dietary–hygienic measures on the SARS-CoV-2 infection rate in participants with serum 25(OH)D3 levels ≥20 ng/mL. Methods: This study was quasi-experimental. We invited hospital workers with 25(OH)D3 levels between 20–100 ng/mL and no previous SARS-CoV-2 infection. They were randomized as follows: treatment options were a) vitamin D3 supplementation (52,000 IU monthly, G1) or b) dietary–hygienic measures (G2). We conducted a 3- to 6-month follow-up of SARS-CoV-2 infections. Participants with 25(OH)D3 levels Results: We analyzed 198 participants, with an average age of 44.4 (SD 9) years, and 130 (65.7%) were women. G1 had fewer cases of SARS-CoV-2 infection than G2 after a follow-up of 3- to 6-months (p p > 0.05). Using a mixed effect Cox regression analysis in the 164 participants that completed six months of follow-up, vitamin D3 supplementation appeared to act as a protective factor against SARS-CoV-2 infection (HR 0.21, p = 0.008) in G1 and G2. None of the participants treated with the supplementation doses had serum 25(OH)D3 levels >100 ng/mL. Conclusions: Vitamin D3 supplementation in participants with 25(OH)D3 levels between 20–100 ng/mL have a lower rate of SARS-CoV-2 infection compared with the use of dietary–hygienic measures at six months follow-up

Effect of Vitamin D3 Supplementation vs. Dietary–Hygienic Measures on SARS-CoV-2 Infection Rates in Hospital Workers with 25-Hydroxyvitamin D3 [25(OH)D3] Levels ≥20 ng/mL

Background: There is scant information on the effect of supplementation with vitamin D3 in SARS-CoV-2 infection cases when patient 25-hydroxyvitamin D3 [25(OH)D3] levels are between 20–100 ng/mL. We aimed to evaluate the effect of supplementation with vitamin D3 vs. dietary–hygienic measures on the SARS-CoV-2 infection rate in participants with serum 25(OH)D3 levels ≥20 ng/mL. Methods: This study was quasi-experimental. We invited hospital workers with 25(OH)D3 levels between 20–100 ng/mL and no previous SARS-CoV-2 infection. They were randomized as follows: treatment options were a) vitamin D3 supplementation (52,000 IU monthly, G1) or b) dietary–hygienic measures (G2). We conducted a 3- to 6-month follow-up of SARS-CoV-2 infections. Participants with 25(OH)D3 levels <20 ng/mL were also analyzed. We divided these latter participants depending on whether they were supplemented (G3) or not (G4). Results: We analyzed 198 participants, with an average age of 44.4 (SD 9) years, and 130 (65.7%) were women. G1 had fewer cases of SARS-CoV-2 infection than G2 after a follow-up of 3- to 6-months (p < 0.05). There were no differences between G3 and G4 at the 3- and 6-month follow-up cutoff points (p > 0.05). Using a mixed effect Cox regression analysis in the 164 participants that completed six months of follow-up, vitamin D3 supplementation appeared to act as a protective factor against SARS-CoV-2 infection (HR 0.21, p = 0.008) in G1 and G2. None of the participants treated with the supplementation doses had serum 25(OH)D3 levels >100 ng/mL. Conclusions: Vitamin D3 supplementation in participants with 25(OH)D3 levels between 20–100 ng/mL have a lower rate of SARS-CoV-2 infection compared with the use of dietary–hygienic measures at six months follow-up