503 research outputs found

    Estudio morfológico y estructural de 16 especies arbóreas y algunas plantas trepadoras en la reserva forestal de Yotoco-Valle.

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    El trabajo contempla aspectos fisionómicos y estructurales de la vegetación intertropical para poder interpretar más a fondo la dinámica de una selva en particular. Entre las especies arbóreas predominan individuos de alturas mayores de 10 mt con aletones, hojas simples alternas, elíptico-lanceoladas, ápice puntiagudo, borde entero, pecíolo curvo, superficie glabra. Se encontraron relaciones directas tanto para cada especie como entre especies para las variables altura total y área basal y entre diámetro y área basal. Las especies trepadoras presentan formas básicas de adhesión al soporte, raíces adventicias y trepadoras volubles, pecíolo curvo, ángulos internos agudos, hojas simples alternas, lanceolada, ápice acuminado, borde entero, superficie glabr

    Tissue culture of ornamental cacti

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    Enabling planetary science across light-years. Ariel Definition Study Report

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    Ariel, the Atmospheric Remote-sensing Infrared Exoplanet Large-survey, was adopted as the fourth medium-class mission in ESA's Cosmic Vision programme to be launched in 2029. During its 4-year mission, Ariel will study what exoplanets are made of, how they formed and how they evolve, by surveying a diverse sample of about 1000 extrasolar planets, simultaneously in visible and infrared wavelengths. It is the first mission dedicated to measuring the chemical composition and thermal structures of hundreds of transiting exoplanets, enabling planetary science far beyond the boundaries of the Solar System. The payload consists of an off-axis Cassegrain telescope (primary mirror 1100 mm x 730 mm ellipse) and two separate instruments (FGS and AIRS) covering simultaneously 0.5-7.8 micron spectral range. The satellite is best placed into an L2 orbit to maximise the thermal stability and the field of regard. The payload module is passively cooled via a series of V-Groove radiators; the detectors for the AIRS are the only items that require active cooling via an active Ne JT cooler. The Ariel payload is developed by a consortium of more than 50 institutes from 16 ESA countries, which include the UK, France, Italy, Belgium, Poland, Spain, Austria, Denmark, Ireland, Portugal, Czech Republic, Hungary, the Netherlands, Sweden, Norway, Estonia, and a NASA contribution

    A multi-country test of brief reappraisal interventions on emotions during the COVID-19 pandemic.

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    The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about a situation. Participants from 87 countries and regions (n = 21,644) were randomly assigned to one of two brief reappraisal interventions (reconstrual or repurposing) or one of two control conditions (active or passive). Results revealed that both reappraisal interventions (vesus both control conditions) consistently reduced negative emotions and increased positive emotions across different measures. Reconstrual and repurposing interventions had similar effects. Importantly, planned exploratory analyses indicated that reappraisal interventions did not reduce intentions to practice preventive health behaviours. The findings demonstrate the viability of creating scalable, low-cost interventions for use around the world

    Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

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    Abstract Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

    Reconocimiento de las malezas monocotyledoneas de importancia en el cultivo de arroz oryza sativa l. en los departamentos del valle del cauca y cauca

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    El trabajo comprende una clave de campo para la identificación de las malezas mono-cotiledóneas de arroz y una descripción taxonómica completa de cada una de ellas. Se describieron 57 especies pertenecientes a siete familias (Commelineacea, Pontederiaceae, Cyperaceae, Gramineae, Alismataceae, Butomaceae y Maranthaceae) y cuatro órdenes (Farinosae, Glumiflorae, Helobiae y Scitaminae).This work is a recognition of the important Monocotyledonae weeds in the rice field Oryza sativa L. in Valle del Cauca and Cauca. Include a simple key for the identification of the weeds in the fields and a complete taxonomic description of each one

    Reconocimiento de las malezas monocotyledoneas de importancia en el cultivo de arroz Oryza sativa L. en los departamentos del Valle del Cauca y Cauca

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    <p>This work is a recognition of the important Monocotyledonae weeds in the rice field Oryza sativa L. in Valle del Cauca and Cauca. Include a simple key for the identification of the weeds in the fields and a complete taxonomic description of each one.</p><p>El trabajo comprende una clave de campo para la identificación de las malezas mono-cotiledóneas de arroz y una descripción taxonómica completa de cada una de ellas. Se describieron 57 especies pertenecientes a siete familias (Commelineacea, Pontederiaceae, Cyperaceae, Gramineae, Alismataceae, Butomaceae y Maranthaceae) y cuatro órdenes (Farinosae, Glumiflorae, Helobiae y Scitaminae).</p&gt

    Antioquia Médica, Vol. 2, No. 1. Agosto

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    La promesa del médico; Endocarditis bacteriana subaguda (enfermedad de osler); Primera trepanación del cráneo en Colombia. ¿Quién la practicó?; Anatomía e Histología del tiroides; Penicilina en el tratamiento de la sífilis; La medicina psicosomática en la atención de los enfermos quirúrgicos; Cólera nostras; Boletín No. 7; Informaciones del decanato de la Facultad de Medicina; Informaciones dadas por el director general del Hospital San Vicente de Paúl, doctor Antonio Osorio Isaza, durante el mes de julio de 1951; Semana de información médica; I Convención de la Sociedad Brasilera de Esterilidad; Literatura médica colombiana; La fotografía como pasatiempo para el doctor; Normas generales para la colaboración en Antioquia Médica

    Antioquia Médica, Vol. 1, No. 7. Abril

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    Medicina rural; Ascaridiasis de las vías biliares; Conducción nerviosa; Pediatría; Inmunidad y alergia en Tuberculosis; Sesión de la Academia del 28 de febrero; Sesión de la Academia del 14 de marzo; Curso de Deontología médica; Boletín N° 3; Nuevas adquisiciones en la biblioteca; Noticias; Facultad de Medicina de Cali; Hospital Infantil de Medellín; Curso de Técnicas auxiliares de Laboratorio Clínico
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