Baja (no alta) Ira Rasgo es una fortaleza personal en adolescentes

Low trait anger, the tendency to stay calm in order to cope with frustrating everyday situations, is associated with mental health and positive outcomes. Its counterpart is high trait anger, defined as intense and chronic irritability, which usually has detrimental effects on the individuals and their relationships. The purpose of this study was to test three hypotheses in adolescents with high (n = 94) and low trait anger (n = 140), with a mean age of 13.06 (SD = 0.77). Hypotheses 1 and 2 addressed the parents’ behavior (parenting practices), and hypothesis 3 assessed social skills, anger and aggression. In particular, compared to adolescents with high trait anger, those with low trait anger: 1) experience less imposition and psychological control (i.e., less negative parenting) from both, mother and father; 2) experience more communication, autonomy, and behavioral control (i.e., more positive parenting) from mother and father; and 3) present more social skills, reflected in lower levels of anger-out, lower aggression toward other individuals, and higher levels of anger self-control. The findings, as a result, supported the three hypotheses. Aggression and social skills did not differ according to gender. However, female participants experienced higher levels of trait anger than did male participants

Towards automatic hole detection of a net for fish farms by means of robotic intelligence

In the last decades fish farms became one of the most important sources of seafood. This industry is facing complex and costly problems like net holes, especially due to unexpected situations, such as depredators and storm effects. This is a complex problem because fishes can escape from the fish farms containers or a depredator can enter in the container. To solve this problem divers are needed, but this solution is difficult and sometimes can be dangerous for the diver. The main objective of this work is to present the current state of a system where an underwater robot can detect holes in the net of a fish farm. Once the robot detects the hole it will proceed to manipulate it. This task is bordered using convolutional neural networks and the BlueROV2 platform with the Newton Gripper from BlueRobotics, which will be upgraded in a second stage to perform preliminary net repairs. This work contributes in the area of aquaculture, computer vision, underwater inspection and manipulation.Peer Reviewe

Antagonistic effect of probiotic strains against two pathogens: Salmonella Typhimurium and E. coli O157:H7

El objetivo de este estudio fue probar la eficiencia de las cepas probióticas Lactobacillus acidophilus NCFM (L. acidophilus), Lactobacillus rhamnosus HN001 (L. rhmanosus) y Bifidobacterium animalis BI07 (B. animalis) para antagonizar los patógenos resistentes a antibióticos Salmonella enteritidis var Thyphimurium (Salmonella Thyphimurium) y Escherichia coli O157:H7 (E. coli O157:H7). Las tres cepas probióticas mostraron poseer un efecto antagónico contra las cepas patógenas Salmonella Thyphimurium y E. coli O157:H7 resistentes a antibióticos. En la prueba de “Well Diffusion”, L. acidophilus y L. rhamnosus presentaron reducciones estadísticamente semejantes entre ellas (P >0.05) de 37-41 mm para E. coli O157:H7 y de 32 – 41 mm para Salmonella Thyphimurium, mientras que B. animalis mostró reducciones menores (P0.05).Consejo Nacional de Ciencia y TecnologíaGastronómica La Buena MesaJabil Circuit GuadalajaraKurago BiotekUniversidad de Guadalajar

Further teleoperated experiments with an underwater mobile manipulator via acoustic modem: modem characterization

In this study, we conducted preliminary experiments to characterize an acoustic sonar [1][2] for underwater communication. We carried on image transmission experiments and attempted to reduce reflections using insulating cork. Moving the buoy along the surface revealed the central area of the tank to have the best communication with Girona. We plan to conduct further experiments with the acoustic modem in a realistic environment. In addition, we are also testing Visible Light Communication (VLC) [3] optical modems, which yielded better results than the acoustic modem. We aim to develop a multimodal system for improved communication under different environmental conditions.Peer Reviewe

Experiments on zebrafish using mini robot fish prototypes to identify stressors

This paper describes the behavioural tests carried out with real fish to study their behaviour and stress against the different prototypes of mini-robot fish with the aim of identifying stressors and reducing them when designing future robots for aquaculture.Peer Reviewe

Bioactive bilayered dressing for compromised epidermal tissue regeneration with sequential activity of complementary agents

The article deals with the design, preparation, and evaluation of a new bilayered dressing for application in the healing of compromised wounds. The system is based on the sequential release of two complementary bioactive components to enhance the activation of the regeneration of dermal tissue. The internal layer is a highly hydrophilic and biodegradable film of gelatin and hyaluronic acid (HG), crosslinked with the natural compound genipin, which reacts with the amine groups of gelatin. This film is loaded with the proangiogenic, anti-inflammatory, and antibacterial peptide, proadrenomedullin N-terminal 20 peptide (PAMP), that is released slowly in the wound site. The external layer, more stable and less hydrophilic, is constituted by a biodegradable polyurethane derived from poly(caprolactone) and pluronic L61. This layer is loaded with resorbable nanoparticles of bemiparin (a fractionated low molecular weight heparin), which promotes the activation of growth factors, FGF and VEGF, and provides a good biomechanical stability and controlled permeability of the bilayered dressing. Experiments carried out in mice demonstrate the excellent angiogenic effect of the HG film in the dermal tissue. Application of the bilayered dressing in the wound healing rabbit ear model shows an improved cicatrization of the wound in both ischemic and non-ischemic defects, favoring epithelialization and reducing noticeably the contraction and the inflammation.This work was supported by the CIBER-BBN and a Grant from Spain’s Ministry of Science and Education (SAF2009-13240-C02-01).Peer Reviewe

Supervivencia global en pacientes con cáncer gástrico avanzado o metastásico en los últimos 10 años en el Centro Médico Nacional «20 de noviembre del ISSSTE»

ResumenAntecedentesLa introducción de nuevos fármacos para el tratamiento de los pacientes con cáncer gástrico irresecable, recurrente o metastásico ha reportado un modesto incremento en la supervivencia libre de progresión (SLP) y la supervivencia global (SG).ObjetivoDeterminar el impacto de la aplicación de los nuevos esquemas de quimioterapia paliativa en la SG de los pacientes con cáncer gástrico del Centro Médico Nacional 20 de noviembre, ISSSTE.Material y métodosEstudio retrospectivo, descriptivo. Analizamos expedientes de pacientes con cáncer gástrico irresecable o metastásico, tratados con quimioterapia paliativa de enero de 2002 a diciembre de 2012 en el Centro Médico Nacional 20 de noviembre, ISSSTE. Se evaluó la SG, SLP y los esquemas de quimioterapia más frecuentemente utilizados. Se asignaron los casos a 2 cohortes de acuerdo a la fecha de inicio de la quimioterapia, conformando la cohorte A los pacientes tratados de enero de 2002 hasta diciembre de 2006 y la cohorte B de enero de 2007 a diciembre de 2012. Se estableció estos periodos dado que representaba el cambio en los esquemas de tratamiento utilizados; es decir; la introducción de esquemas que incluyen antraciclinas, oxaliplatino, capecitabina y docetaxel.ResultadosRevisamos los expedientes de 291 pacientes con cáncer gástrico; excluimos a 221 pacientes por estar en etapas tempranas (i, ii o iii) resecables, recibir tratamiento con quimioterapia fuera de la unidad o no ser candidatos a quimioterapia. Finalmente incluimos 70 casos con tratamiento de primera línea. La mediana de SG para pacientes de la cohorte A fue de 11.2 vs. 10.5 meses para los pacientes de la cohorte B. La mediana de SLP en primera línea de tratamiento fue 8.5 vs. 5.2 meses respectivamente. Ambos resultados sin diferencia estadísticamente significativa.ConclusiónEn nuestro centro, no hay impacto de los nuevos esquemas de tratamiento en SLP o SG. Un tamaño de muestra pequeño y el hecho de que pacientes con pobre estado funcional recibieran quimioterapia podrían ser factores que influyeron en los resultados del estudio, en el cual se observó una tendencia a favor de los nuevos esquemas de quimioterapia, pero sin demostrar significación estadística.AbstractBackgroundThe introduction of new drugs for the treatment of patients with advanced, recurrent or metastatic gastric cancer has resulted in a small benefit in overall survival (OS) and progression free survival (PFS).ObjectiveTo determine the impact of new chemotherapy schedules on the OS of patients with advanced or metastic gastric cancer treated at the Centro Medico Nacional 20 de noviembre, ISSSTE.Material and methodologyRetrolective, descriptive study, the clinical files of patients with advanced, recurrent or metastatic gastric cancer treated with chemotherapy at the Centro Medico Nacional 20 de noviembre, ISSSTE, from january 2002 to december 2012, were analyzed. Chemotherapy schedules, OS and PFS were evaluated. Patients were assigned to two cohorts: those treated from january 2002 to december 2006 were included in cohort A and those treated from january 2007 to december 2012 in cohort B. These time periods were determined based on the years when newer chemotherapy agents (anthracyclines, oxaliplatin, capecitabine and docetaxel) were introduced in our institution.Results291 clinical files were analyzed; 221 patients were excluded for they had clinical stage I, II or resectable III disease, started first line chemotherapy as outpatients of our institution or were not candidates for chemotherapy. 70 cases treated with first line chemotherapy were included. OS for patients in cohort A was 11.2 months vs 10.5 months for patients in cohort B. PFS was 8.5 months vs 5.2, respectively. There was no statistical difference in either comparison.ConclusionThere was no impact of the introduction of newer chemotherapy agents in OS or PFS in patients treated in our institution. A small sample size and the fact that patients with poor performance status received chemotherapy could have had influenced the results of our study, in which tendency towards a better outcome for patients treated with newer chemotherapy schemes was observed, although a statistically significant benefit was not proven

Individual Tree Diameter and Height Growth Models for 30 Tree Species in Mixed-Species and Uneven-Aged Forests of Mexico

Lack of knowledge of individual tree growth in species-rich, mixed forest ecosystems impedes their sustainable management. In this study, species-specific models for predicting individual diameter at breast height (dbh) and total tree height (h) growth were developed for 30 tree species growing in mixed and uneven-aged forest stands in Durango, Mexico. Growth models were also developed for all pine, all oaks, and all other species of the genus Arbutus (strawberry trees). A database of 55,158 trees with remeasurements of dbh and h of a 5-year growth period was used to develop the models. The data were collected from 217 stem-mapped plots located in the Sierra Madre Occidental (Mexico). Weighted regression was used to remove heteroscedasticity from the species-specific dbh and h growth models using a power function of the tree size independent variables. The final models developed in the present study to predict dbh and total tree height growth included size variables, site factors, and competition variables in their formulation. The developed models fitted the data well and explained between 98 and 99% and of the observed variation of dbh, and between 77 and 98% of the observed variation of total tree height for the studied species and groups of species. The developed models can be used for estimating the individual dbh and h growth for the analyzed species and can be integrated in decision support tools for management planning in these mixed forest ecosystemsThis study was supported by the National Forestry Commission (CONAFOR) and the Mexican National Council for Science and Technology (CONACYT)S

Early Tracheostomy for Managing ICU Capacity During the COVID-19 Outbreak: A Propensity-Matched Cohort Study

10 p.Background: During the first wave of the COVID-19 pandemic, shortages of ventilators and ICU beds overwhelmed health care systems. Whether early tracheostomy reduces the duration of mechanical ventilation and ICU stay is controversial. Research question: Can failure-free day outcomes focused on ICU resources help to decide the optimal timing of tracheostomy in overburdened health care systems during viral epidemics? Study design and methods: This retrospective cohort study included consecutive patients with COVID-19 pneumonia who had undergone tracheostomy in 15 Spanish ICUs during the surge, when ICU occupancy modified clinician criteria to perform tracheostomy in Patients with COVID-19. We compared ventilator-free days at 28 and 60 days and ICU- and hospital bed-free days at 28 and 60 days in propensity score-matched cohorts who underwent tracheostomy at different timings (≤ 7 days, 8-10 days, and 11-14 days after intubation). Results: Of 1,939 patients admitted with COVID-19 pneumonia, 682 (35.2%) underwent tracheostomy, 382 (56%) within 14 days. Earlier tracheostomy was associated with more ventilator-free days at 28 days (≤ 7 days vs > 7 days [116 patients included in the analysis]: median, 9 days [interquartile range (IQR), 0-15 days] vs 3 days [IQR, 0-7 days]; difference between groups, 4.5 days; 95% CI, 2.3-6.7 days; 8-10 days vs > 10 days [222 patients analyzed]: 6 days [IQR, 0-10 days] vs 0 days [IQR, 0-6 days]; difference, 3.1 days; 95% CI, 1.7-4.5 days; 11-14 days vs > 14 days [318 patients analyzed]: 4 days [IQR, 0-9 days] vs 0 days [IQR, 0-2 days]; difference, 3 days; 95% CI, 2.1-3.9 days). Except hospital bed-free days at 28 days, all other end points were better with early tracheostomy. Interpretation: Optimal timing of tracheostomy may improve patient outcomes and may alleviate ICU capacity strain during the COVID-19 pandemic without increasing mortality. Tracheostomy within the first work on a ventilator in particular may improve ICU availability

TIC Y SISTEMAS INTELIGENTES como herramientas de soporte para el manejo, educación y prevención del trauma

La corporación ecuatoriana para el desarrollo de la investigación y la academia,. CEDIA, promueve la exploración y resultados de proyectos innovadores que vinculan a instituciones ecuatorianas. A inicios del año 2014, CEDIA conformó grupos de trabajo en varias áreas d einterés; una de ellas fue Telemedicina y Telesalud debido al gran impacto que tiene dentro de la investigación. Este grupo cuenta con la participación de seis universidades ecuatorianas: Universidad de Cuenca, Universidad Salesiana, Universidad Católica de Cuenca, Universidad del Azuay, Universidad Regional Autónoma de los Andes y Universidad Nacional de Chimborazo. El objetivo de este grupo de trabajo es fortalecer, impulsar y motivar actividades de investigación entre las instituciones miembros de CEDIA en bienestar d ela comunidad. En este libro se visualiza el trabajo realizado por el Grupo de Trabajo en temas de trauma utilizando múltiples formas de tecnología, desde aplicaciones móviles, e-learning, objetos de aprendizaje, hasta sistemas de recolección automatizada de datos; desarrollando programas que impactan en la atención de la salud en el área pre-hospitalaria, prevención de lesiones, registro de trauma, modalidades de educación y aprendizaje, mediante el uso de las TIC