Influencia de las redes sociales en la vida académica de estudiantes de mercadotecnia en una universidad mexicana

The objective is to analyze the impact of social networks on students of a marketing degree at a public university in the state of Tabasco, identifying the factors that influence their academic life. The research has a quantitative approach, with a descriptive scope, and a non-experimental design; the unit of analysis was 2018 active students, through a survey on the Google Forms platform, to know the frequency, they give to the use of social networks and if it is used during their class hours. The results mention that social networks do have an impact on their school life and that the hours they spend surfing on social networks influence their academic life. It is concluded that social networks have a negative impact on students, showing a dependence on them that affects their school performance.El objetivo es analizar la influencia de las redes sociales en los estudiantes de la licenciatura de mercadotecnia en una Universidad Pública del Estado de Tabasco, logrando identificar los factores que influyen en su vida académica. La investigación es de enfoque cuantitativo, con un alcance descriptivo, y un diseño no experimental; la unidad de análisis fue de 2018 alumnos activos, mediante una encuesta en la plataforma de Google Forms, con el fin de saber la frecuencia que le dan ellos al uso de las redes sociales y si es utilizada durante sus horarios de clases. Los resultados mencionan que las redes sociales si tienen impacto en su vida escolar y que las horas que pasan navegando en las redes sociales influyen en su vida académica. Se concluye que las redes sociales tienen un impacto negativo en los alumnos, mostrando una dependencia con las mismas que afecta a su rendimiento escolar

Alergia a la proteína de leche de vaca en la infancia: microbiota, hidrolizados y tolerancia

Trabajo presentado al XIII Workshop Sociedad Española de Microbiota, Probióticos y Prebióticos, celebrado en Valencia (España), del 7 la 9 de junio de 2022.Introducción La alergia a proteínas de leche de vaca (APLV) es la alergia alimentaria más frecuente en la infancia, habiéndose descrito posibles relaciones con la microbiota intestinal y con el tipo de alimentación. El objetivo de este trabajo es profundizar en el estudio de la microbiota intestinal en menores de un año con APLV y su relación con la adquisición de tolerancia y dieta, comparando muestras al diagnóstico y a los 6 meses de seguimiento con dieta de exclusión láctea. Metodología Se reclutaron 22 pacientes diagnosticados con APLV (14 mediados por IgE y 8 no mediados) y un grupo control de 25 niños sanos. Se recogieron muestras de heces y se realizó un análisis metataxonómico del ADNr 16S y de las regiones ITS de bifidobacterias por secuenciación. Se evaluaron las características clínico-epidemiológicas de los pacientes y se realizó un seguimiento a los 6 meses para evaluar tolerancia y el uso de distintas fórmulas terapéuticas de sustitución alimentaria. Resultados Se detectó un mayor porcentaje de secuencias pertenecientes al filo Actinobacteria (¿60%) en controles frente a casos (¿30%) al diagnóstico. Además, el patrón de abundancias relativas de bifidobacterias fue diferente entre controles y pacientes no mediados por IgE, con una menor proporción de B. longum en estos últimos. Tras la dieta de exclusión, sólo 3 de los pacientes, que estaban tomando distintos tipos de fórmulas terapéuticas, adquirió tolerancia, de los cuales 2 eran casos no mediados por IgE. Conclusiones En los pacientes APLV no IgE mediada se observaron perfiles microbianos distintos de los lactantes sanos, encontrándose a su vez en este grupo una mayor tolerancia al cabo de 6 meses. En tratamiento y seguimiento de la APLV la determinación de la microbiota intestinal puede ser clave para establecer posibles vínculos con la adquisición de tolerancia y el tipo de hidrolizado

Temporal distribution and genetic variants in influenza A(H1N1)pdm09 virus circulating in Mexico, seasons 2012 and 2013

The 2012 and 2013 annual influenza epidemics in Mexico were characterized by presenting different seasonal patterns. In 2012 the A(H1N1)pdm09 virus caused a high incidence of influenza infections after a two-year period of low circulation; whereas the 2013 epidemic presented circulation of the A(H1N1)pdm09 virus throughout the year. We have characterized the molecular composition of the Hemagglutinin (HA) and Neuraminidase (NA) genes of the A(H1N1)pdm09 virus from both epidemic seasons, emphasizing the genetic characteristics of viruses isolated from Yucatan in Southern Mexico. The molecular analysis of viruses from the 2012 revealed that all viruses from Mexico were predominantly grouped in clade 7. Strikingly, the molecular characterization of viruses from 2013 revealed that viruses circulating in Yucatan were genetically different to viruses from other regions of Mexico. In fact, we identified the occurrence of two genetic variants containing relevant mutations at both the HA and NA surface antigens. There was a difference on the temporal circulation of each genetic variant, viruses containing the mutations HA-A141T / NA-N341S were detected in May, June and July; whereas viruses containing the mutations HA-S162I / NAL206S circulated in August and September. We discuss the significance of these novel genetic changes

Microbioma y mediadores de inflamación intestinal en el síndrome de enterocolitis inducido por proteínas alimentarias

Trabajo presentado al XIV WorkShop de la Sociedad Española de Microbiota, Probióticos y Prebióticos, celebrado en Pamplona (España) del 8 al 10 de marzo de 202

Reply: “Letter to the editor Re: Diaz M., et al. Nutrients 2018, 10, 1481”

The objective of this letter of reply is to provide answers to the doubts and critical issues that Martín Martinez and López Liñan [...

Parasitología Interactiva

Desarrollo de una guía interactiva donde se muestran los ciclos biológicos,imágenes y dibujos de los estadios evolutivos de los principales géneros y especies de parásitos protozoos relevantes en al ámbito veterinario

Measurement of charm production at central rapidity in proton-proton collisions at s=2.76\sqrt{s} = 2.76 TeV

The $p_{\rm T}$-differential production cross sections of the prompt (B feed-down subtracted) charmed mesons D$^0$, D$^+$, and D$^{*+}$ in the rapidity range $|y|<0.5$, and for transverse momentum $1< p_{\rm T} <12$ GeV/$c$, were measured in proton-proton collisions at $\sqrt{s} = 2.76$ TeV with the ALICE detector at the Large Hadron Collider. The analysis exploited the hadronic decays D$^0 \rightarrow$K$\pi$, D$^+ \rightarrow$K$\pi\pi$, D$^{*+} \rightarrow$D$^0\pi$, and their charge conjugates, and was performed on a $L_{\rm int} = 1.1$ nb$^{-1}$ event sample collected in 2011 with a minimum-bias trigger. The total charm production cross section at $\sqrt{s} = 2.76$ TeV and at 7 TeV was evaluated by extrapolating to the full phase space the $p_{\rm T}$-differential production cross sections at $\sqrt{s} = 2.76$ TeV and our previous measurements at $\sqrt{s} = 7$ TeV. The results were compared to existing measurements and to perturbative-QCD calculations. The fraction of cdbar D mesons produced in a vector state was also determined.Comment: 20 pages, 5 captioned figures, 4 tables, authors from page 15, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/307

Microbiota intestinal y alergia a las proteínas de la leche de vaca en la infancia. ¿Tenemos novedades?

Trabajo presentado en el XLVI Congreso de la Sociedad Española de Inmunología Clínica, Alergología y Asma Pediátrica, celebrado en Oviedo (España), del 5 al 7 de mayo de 2022Objetivo / Caso Clínico: Introducción: Se ha demostrado la existencia de relaciones entre la microbiota y alergias alimentarias durante los dos primeros años de vida, siendo la alergia a proteínas de la leche de vaca (APLV) la más frecuente. Nuestro objetivo fue analizar características clínico-epidemiológicas y la microbiota intestinal según el mecanismo inmunológico tratando de buscar asociaciones que faciliten el manejo en APLV. Material y Métodos / Caso Clínico: Descripción del caso: Estudio descriptivo, multicéntrico con una cohorte de APLV menores de un año reclutados al diagnóstico a lo largo de un año en tres hospitales. Grupo control de lactantes sanos de 6 meses reclutados en centros de atención primaria. Criterios de exclusión: alergias alimentarias/enteropatía, antibiótico/ corticoide/probiótico el mes previo, gastroenteritis, síndrome de enterocolitis inducida por proteínas. Resultados / Caso Clínico: Comentarios: 47 participantes: 14 IgE, 8 no IgE y 25 controles. No diferencias significativas en sexo, parto, somatometría o tipo de lactancia, pero sí en la media de edad; siendo en IgE 6.45 meses y 3.38 en no IgE. Los síntomas más frecuentes fueron los cutáneos en IgE (78.6%) y el reflujo gastroesofágico en no IgE (75%). En IgE mediados, el 71, 4% fue positivo a seroproteínas frente a un 57, 1% a caseína. Se observaron diferencias significativas en la composición de la microbiota en la abundancia relativa del filo Bacteroidetes (17% en IgE, 6.9% en no IgE y 9.6% en controles). El filo Actinobacterias se encontró en mayor proporción en controles (60.9%) frente a casos. Conclusiones: Además de evaluar las características clínico-epidemiológicas de menores de 1 año con diagnóstico de APLV en nuestra región, se ha realizado un estudio comparativo de la microbiota intestinal con controles sanos, encontrándose diferencias entre las poblaciones microbianas en función de la fisiopatología de la APLV que refuerzan la interacción entre alergia alimentaria y microbiota intestinal en lactantes y nos permitirán mejorar el abordaje clínico y la intervención en los distintos casos de APL

Emergency surgery for splenic flexure cancer: results of the SFC Study Group database.

BACKGROUND: The effectiveness of surgical treatment for splenic flexure carcinomas (SFCs) in emergency settings remains unexplored. This study aims to compare the perioperative and long-term outcomes of different alternatives for emergency SFC resection. METHOD: This multicenter retrospective study was based on the SFC Study Group database. For the present analysis, SFC patients were selected if they had received emergency surgical resection with curative intent between 2000 and 2018. Extended right colectomy (ERC), left colectomy (LC), and segmental left colectomy (SLC) were evaluated and compared. RESULTS: The study sample was composed of 90 SFC patients who underwent emergency ERC (n = 55, 61.1%), LC (n = 18, 20%), or SLC (n = 17, 18.9%). Bowel obstruction was the most frequent indication for surgery (n = 75, 83.3%), and an open approach was chosen in 81.1% of the patients. A higher incidence of postoperative complications was observed in the ERC group (70.9%) than in the LC (44.4%) and SLC groups (47.1%), with a significant procedure-related difference for severe postoperative complications (Dindo-Clavien ≥ III; adjusted odds ratio for ERC vs. LC:7.23; 95% CI 1.51-34.66; p = 0.013). Anastomotic leakage occurred in 8 (11.2%) patients, with no differences between the groups (p = 0.902). R0 resection was achieved in 98.9% of the procedures, and ≥ 12 lymph nodes were retrieved in 92.2% of patients. Overall and disease-free survival rates at 5 years were similar between the groups and were significantly associated with stage pT4 and the presence of synchronous metastases. CONCLUSION: In the emergency setting, ERC and open surgery are the most frequently performed procedures. ERC is associated with increased odds of severe postoperative complications when compared to more conservative SFC resections. Nonetheless, all the alternatives seem to provide similar pathologic and long-term outcomes, supporting the oncological safety of more conservative resections for emergency SFCs

Early mobilisation in critically ill COVID-19 patients: a subanalysis of the ESICM-initiated UNITE-COVID observational study

Background Early mobilisation (EM) is an intervention that may improve the outcome of critically ill patients. There is limited data on EM in COVID-19 patients and its use during the first pandemic wave. Methods This is a pre-planned subanalysis of the ESICM UNITE-COVID, an international multicenter observational study involving critically ill COVID-19 patients in the ICU between February 15th and May 15th, 2020. We analysed variables associated with the initiation of EM (within 72 h of ICU admission) and explored the impact of EM on mortality, ICU and hospital length of stay, as well as discharge location. Statistical analyses were done using (generalised) linear mixed-effect models and ANOVAs. Results Mobilisation data from 4190 patients from 280 ICUs in 45 countries were analysed. 1114 (26.6%) of these patients received mobilisation within 72 h after ICU admission; 3076 (73.4%) did not. In our analysis of factors associated with EM, mechanical ventilation at admission (OR 0.29; 95% CI 0.25, 0.35; p = 0.001), higher age (OR 0.99; 95% CI 0.98, 1.00; p ≤ 0.001), pre-existing asthma (OR 0.84; 95% CI 0.73, 0.98; p = 0.028), and pre-existing kidney disease (OR 0.84; 95% CI 0.71, 0.99; p = 0.036) were negatively associated with the initiation of EM. EM was associated with a higher chance of being discharged home (OR 1.31; 95% CI 1.08, 1.58; p = 0.007) but was not associated with length of stay in ICU (adj. difference 0.91 days; 95% CI − 0.47, 1.37, p = 0.34) and hospital (adj. difference 1.4 days; 95% CI − 0.62, 2.35, p = 0.24) or mortality (OR 0.88; 95% CI 0.7, 1.09, p = 0.24) when adjusted for covariates. Conclusions Our findings demonstrate that a quarter of COVID-19 patients received EM. There was no association found between EM in COVID-19 patients' ICU and hospital length of stay or mortality. However, EM in COVID-19 patients was associated with increased odds of being discharged home rather than to a care facility. Trial registration ClinicalTrials.gov: NCT04836065 (retrospectively registered April 8th 2021)