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Din sökning på "research studies portal" gav 71179 sökträffar
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Many independent publishers are today offering digital libraries with fulltext archives. In an attempt to provide a single user-interface to a large set of archives, DTVs Article Database Service, offers a consolidatedinterface to a geographically distributed set of archives. While this approach offers a tremendous functional advantage to a user, the delays caused by the network and queuing delays
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This dissertation is about the introduction of school television in Sweden during the 1960?s. It focuses partly on formal and institutional attitudes and values, as in the educational system, and it is partly an investigation of the actual programmes made. The introduction and forming of school television is seen as a consequence due to many factors. It was the time of a growing welfare society wh
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Infectious pancreatic necrosis virus (IPNV) is a naked virus of an uncomplicated structure. In the interior part of the virion, the two segments of double-stranded RNA are located together with the minor structural protein VP1. This protein is detected in its free form as well as linked to the genome. A polymerase activity has been assigned for VP1. The localisation of the viral protein VP3 has a
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Abstract When a child is hospitalized, the parents find themselves in an unfamiliar environment and their parental role changes. They are in a stressful and often anxiety-filled situation and it may be difficult for them to participate in decisions. The purpose of this study was to examine the extent to which parents participate in decisions during the course of events when their child is hospital
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The proteolytic caspase cascade plays a central role in the signaling and execution steps of apoptosis. This study investigated the activation of different caspases in apoptosis induced by MAL (a folding variant of human alpha-lactalbumin) isolated from human milk. Our results show that the caspase-3-like enzymes, and to a lesser extent the caspase-6-like enzymes, were activated in Jurkat and A549
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A century after its inception, agroecology has entered mainstream development debates as a more sustainable alternative to conventional agricultural modernization of relevance not least for improving smallholder agriculture in sub-Saharan Africa. Agroecology is a broad concept considered to have transformative potential, yet as a research field it has often been technology-centred and focused at t
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Ecosystem-based approaches for climate change adaptation are promoted at international, national, and local levels by both scholars and practitioners. However, local planning practices that support these approaches are scattered, and measures are neither systematically implemented nor comprehensively reviewed. Against this background, this paper advances the operationalization of ecosystem-based a
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This article focuses on how academic and industrial leaders view central aspects of the initiation, collaboration process, and the outcomes in government-funded R&D projects. In much previous work on university-industry collaborations (UICs), universities or researchers and/or firms have been studied without any direct reference to the other party, thus neglecting the fact that the motivations
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Objectives: The aim of this study was to evaluate the short-term safety and efficacy of transcatheter aortic valve replacement (TAVR) with the LOTUS Edge system. Background: The LOTUS Edge system was commercially re-released in April 2019. The authors report the first European experience with this device. Methods: A multicenter, single-arm, retrospective registry was initiated to evaluate short-te
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AIMS: Tilt testing (TT) is recognized to be a valuable contribution to the diagnosis and the pathophysiology of vasovagal syncope (VVS). This study aimed to assess the influence of age on TT responses by examination of a large patient cohort.METHODS AND RESULTS: Retrospective data from three experienced European Syncope Units were merged to include 5236 patients investigated for suspected VVS by t
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Bisphenol A (BPA) is considered an endocrine disruptor and has been associated with deleterious effects on spermatogenesis and male fertility. Bisphenol F (BPF) and S (BPS) are struc-turally similar to BPA, but knowledge of their effects on male fertility remains limited. In this cross– sectional study, we investigated the associations between exposure to BPA, BPF, and BPS and semen quality in 556
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The concept of an innovation system is used to understand how innovation contributes to economic growth. However, innovation systems do not evolve evenly in different parts of the world. This paper contributes to the ongoing debate on the emergence of innovation systems in the context of developing countries. It uses the Rwandan case, where agriculture is a dominant socio-economic sector with high
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This study explores the emergence of a new entrepreneurship phenomenon (digital social entrepreneurship) as a result of the collaboration among many agents (N-Helix), given the government’s limited capacity to respond to the stakeholders’ needs satisfaction related to an exogenous event (e.g., the COVID-19 pandemic). Our theory development is based on three ongoing academic debates related to (a)
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In a previous publication (Xie et al., Langmuir 29, 2659 (2013)), we demonstrated that polymer solutions, which display a bulk lower critical solution temperature (LCST) may undergo a phase transition in a porous environment below the LCST. Such capillary induced transitions are thus supra-critical, given that the associated bulk solution only contains a single fluid phase. The current work explor
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Stem cell therapy using human skin-derived neural precursors holds much promise for the treatment of stroke patients. Two main mechanisms have been proposed to give rise to the improved recovery in animal models of stroke after transplantation of these cells. First, the so called by-stander effect, which could modulate the environment during early phases after brain tissue damage, resulting in mod
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Flaps are widely used in oculoplastic reconstructive surgery to cover defects following the removal of tumors, malformations, or trauma. Adequate blood perfusion of the flap is crucial for its survival. Knowledge about the perfusion in different type of flaps is therefore of great value. The main aim of the studies presented in this thesis was to investigate the changes in blood perfusion in advan
