Nuevo profesor universitario: Jason Lindo

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Determinación del factor Lambda (λ) de las mediciones de emisiones contaminantes de los vehículos a gasolina del CU Nezahualcóyotl

Tesis de LicenciaturaEl presente proyecto se enfoca en la determinación del Factor Lambda (λ) de las emisiones contaminantes de una muestra aleatoria de vehículos a gasolina del Centro Universitario UAEM Nezahualcóyotl, para ello, se analizan las normas de emisiones contaminantes establecidas para la circulación de vehículos automotores ligeros (Norma Oficial Mexicana NOM-041-SEMARNAT-2015, NOM 042-SEMARNAT-2003), que establecen los límites máximos de emisiones contaminantes, así como los procedimientos de medición establecidos en la NOM-045-SEMARNAT-2006, Protección Ambiental. Se analiza también la NOM-EM-167-SEMARNAT-2016, publicada en Julio de 2016, que establece los límites máximos de emisiones de los vehículos automotores que circulan en la megalópolis de la ciudad de México (Ciudad de México, Hidalgo, Estado de México, Morelos, Puebla y Tlaxcala), cuya principal modificación al programa de verificación vehicular es, que se considera al sistema de diagnóstico a bordo (OBD); OBDII (On Board diagnostics) y al EOBD (European On Board Diagnostic) o similare

Circular PSS Strategies: An Exploration of the Integration of Territorial Resources

Product service systems (PSS) are frequently cited as key strategies in the transition towards the circular economy (CE). The main aim of the CE is sustainable development (SD), hence, this paper intends to highlight the importance of considering the territory in the design and implementation of circular PSS strategies for ensuring SD. This research is in an early stage, thus, a literature review was conducted to define the main characteristics of circular PSS, and the concepts of the territory, territorial and local resources from a PSS perspective. In addition, an analysis of the state-of-the-art approach of the integration of the territorial scale in the design and development of PSS strategies was conducted. This study contributes to the understanding of the territory and its relevance in the local value creation in circular PSS strategies. Furthermore, the results highlight the relevant role of collaboration and the importance of intangible resources in the mobilisation of other resources in the design of circular PSS strategies

El Estado en la promoción del desarrollo: la experiencia institucional en México

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Incidence of digestive bleeding in ICU patients of San Ignacio University Hospital

Objetivos: calcular la incidencia de sangrado gastrointestinal signifi cativo y no signifi cativo en pacientes de la Unidad de Cuidado Intensivo del Hospital San Ignacio, admitidos entre agosto y noviembre de 2007 y la mortalidad relacionada con este. Diseño del estudio: estudio descriptivo de incidencia. Lugar del estudio: Unidad de Cuidado Intensivo del Hospital Universitario San Ignacio. Pacientes: mayores de 16 años que ingresan a la unidad de cuidado intensivo, con una estancia mayor de 24 horas y que no ingresen por hemorragia digestiva o hayan recibido tratamiento previo con cualquier tipo de inhibidor de bomba de protones, sucralfate, antiH2, o antiácido. Intervenciones: ninguna Mediciones: sangrado gastrointestinal significativo, sangrado gastrointestinal no significativo, muerte por sangrado gastrointestinal. Resultados: muestra recolectada de 524 sujetos. Promedio de edad 57 años (máx. 94-min 17 años), 236 mujeres y 285 hombres. Incidencia acumulada de sangrado gastrointestinal 3.44%. Incidencia de sangrado significativo 2.6%. Incidencia de sangrado no significativo 0.76%. Mortalidad global 9.34%, mortalidad por sangrado 0%. Conclusiones: la incidencia de sangrado gastrointestinal significativo se encuentra entre rangos mencionados en la literatura, algo inferior a algunos estudios, lo cual podría estar en relación con el alto porcentaje de profi laxis manejado. La incidencia de sangrado gastrointestinal no signifi cativo es baja comparativamente con la mencionada en otros estudios; sin embargo, se encontraron defi ciencias en el registro de datos en la historia clínica, y muchos pacientes recibieron profi laxis o tratamiento aún sin tener un alto riesgo o claro diagnóstico del origen del sangrado. La mortalidad global fue de 49 pacientes (9.35%), ninguna atribuible a sangrado gastrointestinalArtículo original73-79UCI del Hospital Universitario San IgnacioAim: to estimate the incidence of signifi cant and non-signifi cant gastrointestinal bleeding in patients of the Intensive Care Unit at Hospital San Ignacio, admitted between August and November of 2007 as well as the related mortality. Study design: descriptive study of incidence. Place of the Study: University Hospital San Ignacio Patients: patients older than 16 years admitted to the Intensive Care Unit due to a condition different from digestive hemorrhage, with a minimum stay of 24 hours and who had not received previous treatment or prophylaxis for acid peptic disease. Interventions: none Measurements: signifi cant gastrointestinal bleeding, Non-signifi cant gastrointestinal bleeding, Death caused by gastrointestinal bleeding. Results: collected sample: 524 subjects with an age range of 17 to 94 years, a mean of 57 years, 236 women and 285 men. Accumulated incidence of gastrointestinal bleeding: 3.44%. Incidence of signifi cant bleeding 2, 6%. Incidence of non-signifi cant bleeding 0.76%. Global mortality 9.34%. Mortality caused by bleeding 0%. Conclusions: the incidence of signifi cant gastrointestinal bleeding in this setting was similar to most of the studies we reviewed and inferior to one of the studies, which can be related to the high percentage of handled prophylaxis. The incidence of non-signifi cant gastrointestinal bleeding was low in comparison to other studies. We found defi ciencies in the registries and many patients received prophylaxis or treatment without having high risk or etiological diagnosis. The global mortality of the sample was 9.35% not attributable to gastrointestinal bleedin

Estabilidad Epistemológica del Profesor Debutante y Espacio de Trabajo Matemático

En este trabajo estudiamos la estabilidad epistemológica de profesores debutantes. Para ello, hemos hecho un estudio cualitativo de su ETM-idóneo en el momento en que desarrollan un dominio matemático con sus estudiantes, de modo de clarificar los elementos que ponen en juego cuando despliegan una tarea en el aula. Mostramos resultados relativos al favorecimiento eventual que hacen esos profesores de la concreción de las génesis semiótica, instrumental y discursiva, y de la circulación entre los distintos polos de los planos epistemológico y cognitivo. Del estudio se desprende que la epistemología del profesor debutante no es estable, debido a una tensión entre su ETM-personal y su ETM-idóneo

The impact of long term medical conditions on the outcomes of psychological therapy for depression and anxiety

Background: Long term conditions (LTC) often coexist with depression and anxiety. Aims: To assess the effectiveness of stepped care psychological therapies for patients with LTC. Method: Data from 28498 patients were analysed using regression to model depression (PHQ-9) and anxiety (GAD-7) outcomes. Post-treatment symptoms and effect sizes (d) were estimated for cases with and without LTC, controlling for covariates. The likelihood of access and response to intensive psychological interventions was also examined. Results: Higher post-treatment symptoms were predicted for patients with musculoskeletal problems (d = .22 to .27), COPD (d = .26 to .33), diabetes (d = .05 to .13) and psychotic disorders (d = .50 to .58). Most LTC were associated with greater odds of accessing high intensity therapies (HIT), yet HIT cases continued to have higher average post-treatment symptoms. Conclusions: Some LTC are associated with greater intensity of care and poorer outcomes after therapy

An investigation of treatment return after psychological therapy for depression and anxiety

BACKGROUND: Some patients return for further psychological treatment in routine services, although it is unclear how common this is, as scarce research is available on this topic. AIMS: To estimate the treatment return rate and describe the clinical characteristics of patients who return for anxiety and depression treatment. METHOD: A large dataset (N=21,029) of routinely collected clinical data (2010-2015) from an English psychological therapy service was analysed using descriptive statistics. RESULTS: The return rate for at least one additional treatment episode within 1-5 years was 13.7%. Furthermore, 14.5% of the total sessions provided by the service were delivered to treatment-returning patients. Of those who returned, 58.0% continued to show clinically significant depression and/or anxiety symptoms at the end of their first treatment, while 32.0% had experienced a demonstrable relapse before their second treatment. CONCLUSIONS: This study estimates that approximately one in seven patients return to the same service for additional psychological treatment within 1-5 years. Multiple factors may influence the need for additional treatment, and this may have a major impact on service activity. Future research needs to further explore and better determine the characteristics of treatment returners, prioritise enhancement of first treatment recovery, and evaluate relapse prevention interventions