Vehículo autónomo polivalente para trabajos en invernadero.

Número de publicación: ES2329107 A1 (20.11.2009) También publicado como: ES2329107 B2 (07.09.2010) Número de Solicitud: Consulta de Expedientes OEPM (C.E.O.) P200801645 (19.05.2008)Vehículo autónomo polivalente para trabajos en invernadero. El objeto de la invención es un vehículo que de forma autónoma puede moverse entre las líneas de cultivo en invernadero para realizar diferentes operaciones. Está dotado de un chasis diseñado para poder recibir diferentes implementos, así como un punto de enganche en la parte trasera para el acoplamiento de máquinas y equipos. Dispone de un sistema de transmisión hidrostático controlado electrónicamente que permite mover el equipo en un rango de velocidades continuo para adaptarla convenientemente a las exigencias del trabajo, además de suministrar energía a los implementos que la requieran. El movimiento del vehículo se consigue mediante el equilibrio dinámico de cada una de las orugas que componen el sistema de rodadura. Para ello dispone de un sistema sensorial compuesto por captadores de presión, codificadores incrementales y un radar. El sistema sensorial del vehículo se completa con sensores de ultrasonido distribuidos por todo el perímetro (detección de obstáculos), una brújula magnética (orientación del vehículo) y sensores de seguridad (prevenir colisiones). La información suministrada por el sistema sensorial permite la localización y navegación del vehículo en el entorno de trabajo. Toda la información es gestionada por un sistema empotrado, donde se ejecutan los programas que controlan el vehículo. El equipo también está dotado de una cámara multiespectral, adaptada para realizar un seguimiento continuo de determinados parámetros del cultivo, como pueden ser: detectar problemas fitosanitarios y de nutrición, controlar la evolución de la masa vegetal, localizar frutos, determinar la maduración de los frutos, etc.Universidad de Almerí

Gestión del conocimiento. Perspectiva multidisciplinaria. Volumen 17

El libro “Gestión del Conocimiento. Perspectiva Multidisciplinaria”, Volumen 17 de la Colección Unión Global, es resultado de investigaciones. Los capítulos del libro, son resultados de investigaciones desarrolladas por sus autores. El libro es una publicación internacional, seriada, continua, arbitrada, de acceso abierto a todas las áreas del conocimiento, orientada a contribuir con procesos de gestión del conocimiento científico, tecnológico y humanístico. Con esta colección, se aspira contribuir con el cultivo, la comprensión, la recopilación y la apropiación social del conocimiento en cuanto a patrimonio intangible de la humanidad, con el propósito de hacer aportes con la transformación de las relaciones socioculturales que sustentan la construcción social de los saberes y su reconocimiento como bien público

Mortality from gastrointestinal congenital anomalies at 264 hospitals in 74 low-income, middle-income, and high-income countries: a multicentre, international, prospective cohort study

Summary Background Congenital anomalies are the fifth leading cause of mortality in children younger than 5 years globally. Many gastrointestinal congenital anomalies are fatal without timely access to neonatal surgical care, but few studies have been done on these conditions in low-income and middle-income countries (LMICs). We compared outcomes of the seven most common gastrointestinal congenital anomalies in low-income, middle-income, and high-income countries globally, and identified factors associated with mortality. Methods We did a multicentre, international prospective cohort study of patients younger than 16 years, presenting to hospital for the first time with oesophageal atresia, congenital diaphragmatic hernia, intestinal atresia, gastroschisis, exomphalos, anorectal malformation, and Hirschsprung’s disease. Recruitment was of consecutive patients for a minimum of 1 month between October, 2018, and April, 2019. We collected data on patient demographics, clinical status, interventions, and outcomes using the REDCap platform. Patients were followed up for 30 days after primary intervention, or 30 days after admission if they did not receive an intervention. The primary outcome was all-cause, in-hospital mortality for all conditions combined and each condition individually, stratified by country income status. We did a complete case analysis. Findings We included 3849 patients with 3975 study conditions (560 with oesophageal atresia, 448 with congenital diaphragmatic hernia, 681 with intestinal atresia, 453 with gastroschisis, 325 with exomphalos, 991 with anorectal malformation, and 517 with Hirschsprung’s disease) from 264 hospitals (89 in high-income countries, 166 in middleincome countries, and nine in low-income countries) in 74 countries. Of the 3849 patients, 2231 (58·0%) were male. Median gestational age at birth was 38 weeks (IQR 36–39) and median bodyweight at presentation was 2·8 kg (2·3–3·3). Mortality among all patients was 37 (39·8%) of 93 in low-income countries, 583 (20·4%) of 2860 in middle-income countries, and 50 (5·6%) of 896 in high-income countries (p<0·0001 between all country income groups). Gastroschisis had the greatest difference in mortality between country income strata (nine [90·0%] of ten in lowincome countries, 97 [31·9%] of 304 in middle-income countries, and two [1·4%] of 139 in high-income countries; p≤0·0001 between all country income groups). Factors significantly associated with higher mortality for all patients combined included country income status (low-income vs high-income countries, risk ratio 2·78 [95% CI 1·88–4·11], p<0·0001; middle-income vs high-income countries, 2·11 [1·59–2·79], p<0·0001), sepsis at presentation (1·20 [1·04–1·40], p=0·016), higher American Society of Anesthesiologists (ASA) score at primary intervention (ASA 4–5 vs ASA 1–2, 1·82 [1·40–2·35], p<0·0001; ASA 3 vs ASA 1–2, 1·58, [1·30–1·92], p<0·0001]), surgical safety checklist not used (1·39 [1·02–1·90], p=0·035), and ventilation or parenteral nutrition unavailable when needed (ventilation 1·96, [1·41–2·71], p=0·0001; parenteral nutrition 1·35, [1·05–1·74], p=0·018). Administration of parenteral nutrition (0·61, [0·47–0·79], p=0·0002) and use of a peripherally inserted central catheter (0·65 [0·50–0·86], p=0·0024) or percutaneous central line (0·69 [0·48–1·00], p=0·049) were associated with lower mortality. Interpretation Unacceptable differences in mortality exist for gastrointestinal congenital anomalies between lowincome, middle-income, and high-income countries. Improving access to quality neonatal surgical care in LMICs will be vital to achieve Sustainable Development Goal 3.2 of ending preventable deaths in neonates and children younger than 5 years by 2030

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

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

Síndrome coronario agudo por hipersensibilidad: Síndrome de Kounis

El síndrome de Kounis, angina alérgica o infarto de miocardio alérgico, fue descrito en 1991 por Kounis y Zavras como la aparición de manera simultánea, de eventos coronarios agudos y síntomas alérgicos anafilácticos/anafilactoides. Actualmente hay descritos en la literatura tres subtipos, el tipo I sin enfermedad coronaria, el tipo II con enfermedad coronaria y el tipo III en pacientes que sufren trombosis de un stent farmacoactivo. En la actualidad continúa siendo poco conocido con cerca de unas 100 entradas en Pubmed que reúnen casos, series de casos y revisiones. La epidemiología es desconocida y no existen guías de práctica clínica que establezcan el tratamiento de elección. Presentamos dos casos clínicos de este síndrome diagnosticados en nuestro centro

Síndrome coronario agudo por hipersensibilidad:Síndrome de Kounis

El síndrome de Kounis, angina alérgica o infarto de miocardio alérgico, fue descrito en 1991 por Kounis y Zavras como la aparición de manera simultánea, de eventos coronarios agudos y síntomas alérgicos anafilácticos/anafilactoides. Actualmente hay descritos en la literatura tres subtipos, el tipo I sin enfermedad coronaria, el tipo II con enfermedad coronaria y el tipo III en pacientes que sufren trombosis de un stent farmacoactivo. En la actualidad continúa siendo poco conocido con cerca de unas 100 entradas en Pubmed que reúnen casos, series de casos y revisiones. La epidemiología es desconocida y no existen guías de práctica clínica que establezcan el tratamiento de elección. Presentamos dos casos clínicos de este síndrome diagnosticados en nuestro centro

Acute coronary hipersensitivity disorder: Kounis Syndrome

Kounis syndrome is a new clinical entity defined as the occurrence of acute coronary syndromes caused by inflammatory mediators. It was first described in 1991, and since then, new individual case description is helping to delineate its pathogenesis and treatment. Three variants of Kounis syndrome have been described: vasospastic allergic angina (type I), allergic and atheromatous myocardial infarction (type II), and coronary artery stent thrombosis demonstrating the presence of eosinophils and mast cells (type III). Two new cases of type I and type II Kounis syndrome are presented emphasizing its distinct treatment dilemmas.El síndrome de Kounis (SK) es una nueva entidad clínica definida como la aparición simultánea de síntomas alérgicos y de un síndrome coronario agudo. Desde su descripción inicial en el año 91 se han ido sumando revisiones y descripciones de casos que están permitiendo conocer mejor su patogénesis. Desde el año 2010 se han definido tres variantes de dicho síndrome: angina alérgica vasoespástica (tipo I), infarto de miocardio alérgico (tipo II) y trombosis intrastent con trombo oclusivo infiltrado por eosinófilos y mastocitos. En el presente artículo describimos un caso de SK tipo I y otro caso de SK tipo II, discutiendo acerca del tratamiento pautado en dichos casos

Observation of unexpected uniaxial magnetic anisotropy in La 2/3 Sr 1/3 MnO 3 films by a BaTiO 3 overlayer in an artificial multiferroic bilayer

International audienceWe studied in detail the in-plane magnetic properties of heterostructures based on a ferroelectric BaTiO3 overlayer deposited on a ferromagnetic La2/3Sr1/3MnO3 film grown epitaxially on pseudocubic (001)-oriented SrTiO3, (LaAlO3)0.3(Sr2TaAlO6)0.7 and LaAlO3 substrates. In this configuration, the combination of both functional perovskites constitutes an artificial multiferroic system with potential applications in spintronic devices based on the magnetoelectric effect. La2/3Sr1/3MnO3 single layers and BaTiO3/La2/3Sr1/3MnO3 bilayers using the pulsed-laser deposition technique. We analyzed the films structurally through X-ray reciprocal space maps and high-angle annular dark field microscopy, and magnetically via thermal demagnetization curves and in-plane magnetization versus applied magnetic field loops at room temperature. Our results indicate that the BaTiO3 layer induces an additional strain in the La2/3Sr1/3MnO3 layers close to their common interface. The presence of BaTiO3 on the surface of tensile-strained La2/3Sr1/3MnO3 films transforms the in-plane biaxial magnetic anisotropy present in the single layer into an in-plane uniaxial magnetic anisotropy. Our experimental evidence suggests that this change in the magnetic anisotropy only occurs in tensile-strained La2/3Sr1/3MnO3 film and is favored by an additional strain on the La2/3Sr1/3MnO3 layer promoted by the BaTiO3 film. These findings reveal an additional mechanism that alters the magnetic behavior of the ferromagnetic layer, and consequently, deserves further in-depth research to determine how it can modify the magnetoelectric coupling of this hybrid multiferroic system