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The effect of future changes in temperature and precipitation patterns on arctic ecosystem functioning is often assessed using state-of-the-art ecosystem models. Many models however lack detailed representation of wintertime processes, as pointed out by recent studies (Wang et al. 2016, Slater and Lawrence 2013). This bias may influence the derived outputs, such as soil temperature, permafrost ext
Produktion av en nanotrådssolcell För att ta itu med miljöpåverkan från växthusgaser krävs en övergång till förnyelsebara energikällor. Ett exempel på en sådan källa är nanotrådssolceller. I mitt examensarbete har jag undersökt hur nanotrådar kan arrangeras på sådant sätt som krävs för att kunna omvandla solljuset till elektricitet. Global uppvärmning är ett hot som till stor del orsakas av utslThe demand for cheaper and more efficient solar cells is high. One way to decrease cost of material, while maintaining a high degree of efficiency, is to take advantage of nanomaterials. A thin film containing pn-junction nanowires can convert light with an efficiency comparable to traditional planar cells, while using a fraction of the material, and thus reduce costs. At the company Sol Voltaics
Populärvetenskaplig sammanfattning: Är klimatforskningen skev? En central fråga är om vi kan lita på att vetenskapliga tidskrifter återger en rättvis bild av aktuella forskningsresultat? Dessutom bör vi fråga oss hur rapporteringen påverkas då betydande händelser sker inom vetenskapsvärlden. I november 2007 och senare 2009 skedde två viktiga företeelser inom klimatforskningen som potentiellt kanAbstract The declaration of a scientific consensus concerning anthropogenic causes for climate change by the IPCC in their fourth assessment report (AR4), published in 2007, initiated a heated debate. During this debate, experts within the IPCC were accused of selective reporting and the AR4 got strong source criticism by politicians, stakeholders and climate skeptics in general. The debate furth
Lunds Klimatallians har ambitioner att hjälpa sina medlemmar arbeta mot en hållbar utveckling och letar efter nya metoder för att förbättra sin insats. Lunds Klimatallians är en organisation som startades i initiativ av Lund Kommuns miljöstrategiska enhet i syfte att bidra till Sveriges genomförande av FN:s klimatmål. Målen ska leda världen mot en hållbar utveckling men i dagsläget finns hållbarheLund's Climate Alliance was initiated 2010 by the municipality of Lund, in southern Sweden, to support local climate adaptation and mitigation efforts. The purpose of this paper is to investigate what each member of Lund's Climate Alliance believes will be necessary to realize sustainability goals particular to their organization in the future. The study thereby points to new topics, activ
BACKGROUND: There is an increasing interest in cognitive and functional outcomes in the respective stages of Alzheimer's disease (AD) and in novel therapies particularly for the milder phases of AD. Our aim was to describe and compare various aspects of disease progression in patients with mild versus moderate AD in routine clinical practice of cholinesterase inhibitor (ChEI) therapy. METHODS: Thi
Background: Selective dorsal rhizotomy (SDR) is a well accepted neurosurgical procedure performed for the relief of spasticity interfering with motor function in children with spastic cerebral palsy (CP). The goal is to improve function, but long-term outcome studies are rare. The aims of this study were to evaluate long-term functional outcomes, safety and side effects during five postoperative y
Background: Subjects with non-O ABO blood group alleles have increased risk of pancreatic cancer. Glycosyltransferase activity is greater for the A(1) versus A(2) variant, whereas O01 and O02 variants are nonfunctioning. We hypothesized: 1) A(1) allele would confer greater risk than A(2) allele, 2) protective effect of the O allele would be equivalent for O01 and O02 variants, 3) secretor phenotyp
Background: In previous meta-analyses, tea consumption has been associated with lower incidence of type 2 diabetes. It is unclear, however, if tea is associated inversely over the entire range of intake. Therefore, we investigated the association between tea consumption and incidence of type 2 diabetes in a European population. Methodology/Principal Findings: The EPIC-InterAct case-cohort study wa
Anthracyclines and taxanes are active cytotoxic drugs in the treatment of early metastatic breast cancer. It is yet unclear whether addition of capecitabine to the combination of these drugs improves the treatment outcome. Patients with advanced breast cancer were randomized to first-line chemotherapy with a combination of epirubicin (Farmorubicin(A (R))) and paclitaxel (Taxol(A (R))) alone (ET) o
Objectives The aim of this study was to confirm the influence of TNFSF4 polymorphisms on systemic sclerosis (SSc) susceptibility and phenotypic features. Methods A total of 8 European populations of Caucasian ancestry were included, comprising 3014 patients with SSc and 3125 healthy controls. Four genetic variants of TNFSF4 gene promoter (rs1234314, rs844644, rs844648 and rs12039904) were selected
Background: Stroke and acute myocardial infarction (AMI) rank among the leading causes of mortality. Physical activity and exercise are recommended as part of rehabilitation after AMI to prevent cardiovascular events, but the importance for stroke prevention has not been investigated using population-based data. Objectives: To determine associations between participation in exercise-based cardiac
This study aimed to obtain high-resolution 3D isotropic turbo spin-echo (TSE) wrist MRI acquisitions at 7T, with and without fat suppression, facilitated by compressed-sensing (CS) acceleration. In 16 healthy subjects, fat-suppressed (FS) and nonfat-suppressed (NFS) TSE wrist images were obtained. The protocol consisted of a SENSE-accelerated scan, with an isotropic voxel size of 0.45 mm and acqui
BACKGROUND: Platelet transfusions are frequent in the Intensive Care Unit (ICU), either as prophylaxis against bleeding complications or as treatment for bleeding. The European Society of Intensive Care Medicine guidelines for ICU patients generally recommend not using prophylactic platelet transfusions unless the platelet count falls below 10 × 10 9 cells/L in non-bleeding patients and make no re
Background: Guidance on managing acute mesenteric ischaemia (AMI) is largely based on expert opinion and retrospective studies pooling different subtypes of AMI. In clinical practice, management strategy is often selected based on the patient’s severity of illness, whereas randomized controlled trials or even adjusted analyses comparing different strategies are rarely available. We aimed to perfor
Popular summary The fate of non-steroidal anti-inflammatory drugs The knowledge about distribution of drugs between sewage sludge, water phases and water living organisms is vital for predictions of the fate and transport routes of toxic substances to the environment. And the distribution of drugs in the environment can be used as a base for risk assessments and it also can be used to define desir
Overheating in buildings is becoming a major concern and cause for various health issues. Existing research and previous studies on the issue were examined to acquire relevant information about the definition of overheating, its possible causes, and the heath impacts it could have on human health. The review included data on the current status of thermal comfort and overheating regulations in Swed
Objectives To describe the endosonographic image of the anal sphincter 2-7 days after delivery in women who had undergone a primary repair of an obstetric sphincter tear. Methods Forty-eight women who had suffered a third- or fourth-degree sphincter tear at delivery and had undergone primary sphincter repair were examined with endoanal sonography 2-7 days after delivery. A score from 0 to 16 was
Leptin is a key biological marker related to energy balance and development of diabetes and cardiovascular diseases. Its levels are increased in populations with a high degree of the metabolic syndrome. Life history of evolution has, however, largely taken place under the ecological context of hunting and gathering. In this study, we explored whether the first steps of transition to sedentary agri
