Conceptualisatie en parameterisatie van landgebruik, bodem, beregening en buisdrainage in het NHI

Bij de modellering van de hydrologie van de bodem en het landgebruik in het NHI (Nationaal Hydrologisch Instrumentarium) is voortgebouwd op de hydrologie voor STONE 2.3. Bij STONE is Nederland landsdekkend gemodelleerd met behulp van een beperkt aantal (6405) plots. Een plot is een unieke combinatie van gewastypen, en geclassificeerde hydrologische eigenschappen en bodemchemische eigenschappen. Bij het bouwen van het NHI is deze piotbenadering verlaten. Dit betekent dat voor elke gridcel van 250 bij 250 m een model moet worden gebouwd van het gewas-onverzadigde zone deelsysteem.Daarbij is gebruik gemaakt van de modelcode metaSWAP, de onverzadigde zone module van SIMGRO. In dit artikel wordt zowel de conceptualisatie als de bijbehorende parametrisatie en de daarvoor gebruikte bestanden in meer detail beschreve

Gegevens betreffende belangrijke graslandplanten

CILO vegetatieonderzoe

Experimentos de elección discreta. Diseño, análisis e implementación en salud

Los experimentos de elección discreta (DCE, su sigla en inglés), son una metodología usada para evaluar preferencias de desenlaces o intervenciones relacionadas con salud. A diferencia de otras técnicas de medición que utilizan métodos simples de elección o herramientas estadísticas básicas que fallan al evaluar los beneficios específicos de una intervención, proceso de entrega, beneficio, satisfacción y preferencia de los usuarios en términos de tiempo, calidad o atributo específico, los DCE combinan, en la generación de atributos y modelamiento matemático, complejas tareas de diseño y ejecución, que mejoran la calidad y optimizan la cantidad necesaria de información mediante el uso eficiente de recursos y resultados de excelente calidad. Este documento presenta la historia, el desarrollo y la fundamentación teórica de los DCE y muestra las críticas, las potenciales limitaciones y las precauciones.Q4Discrete choice experiments (DCE) are a methodology for evaluate patient preferences for health-related outcomes or interventions. Other preference measurement techniques that use simple methods of choice or basic statistical tools that fail to evaluate the specific benefits of an intervention, delivery process, benefit, satisfaction and patients’ preferences in terms of time, quality or specific attribute. The DCE combine in the generation of attributes and mathematical modeling, complex task of designing and execution, to improve the quality and optimize the necessary amount of information, achieving an efficient use of resources with excellent quality results. This document presents globally a brief of the history, development and theoretical foundation of the DCE and then presents in a critical way the potential limitations, precautions in their use and implementation that allow to establish the possible scenarios of use and development.Revista Nacional - IndexadaS

B-lymphocyte reconstitution after repeated rituximab treatment in a child with steroid-dependent autoimmune hemolytic anemia

We report the detailed long-term reconstitution of B-lymphocyte subpopulations, immunoglobulins, and specific antibody production after two courses of rituximab in a young, previously healthy girl with steroid-dependent autoimmune hemolytic anemia. B-lymphocyte subpopulations were surprisingly normal directly after reconstitution. However, there was a slower reconstitution after the second rituximab course, especially of non-switched and switched memory B-lymphocytes, and a temporary decline in IgM below age-matched reference values

Peer support to decrease diabetes-related distress in patients with type 2 diabetes mellitus:Design of a randomised controlled trial

BACKGROUND: Many type 2 diabetes mellitus patients face difficulties self-managing their illness, which can lead to high levels of diabetes-related distress. Diabetes distress may be decreased by peer support, as peers understand and have dealt with similar problems, and can help motivate each other. A recent systematic review concluded that evidence of benefits of peer support in patients with type 2 diabetes mellitus is too inconsistent due to weak theoretical foundation of the interventions. This study describes the design of a trial evaluating the effectiveness of a group-based, peer support programme with a strong theoretical foundation on diabetes-related distress in type 2 diabetes patients. METHODS: This is a parallel group randomised controlled trial of a six session group-based peer support intervention, delivered by peer leaders and group psychotherapists, compared with one educational meeting on diabetes. At least 152 patients with a type 2 diabetes duration of three years or more and between 50 and 70 years of age, recruited via their general practitioner, will be randomised to receive the peer support intervention or one educational meeting. The intervention is developed in line with three key stages of research development of the Medical Research Council framework. The primary outcome measure for this study is diabetes-related distress. Secondary outcomes include self-management behaviour, well-being and health-related quality of life. Perceived social support is a process measure. Outcomes will be measured one month before, and 6, and 12 months after the intervention by means of self-reported questionnaires. Analysis will be on an intention-to-treat basis. DISCUSSION: This article contains a description of the design of a study that will investigate the effect of a group-based, peer support intervention on diabetes-related distress in type 2 diabetes patients. The intervention was developed in recognition of the limited evidence, and the importance of a theoretical foundation and its implementation. Findings will contribute to knowledge in the field of peer support and patient-important outcomes in type 2 diabetes patients. TRIAL REGISTRATION: Dutch Trial Registry: NTR347