Sökresultat

Filtyp

Din sökning på "*" gav 526145 sökträffar

Quality transformation of dissolved organic carbon during water transit through lakes : contrasting controls by photochemical and biological processes

Dissolved organic carbon (DOC) may be removed, transformed, or added during water transit through lakes, resulting in changes in DOC composition and pigmentation (color). However, the process-based understanding of these changes is incomplete, especially for headwater lakes. We hypothesized that because heterotrophic bacteria preferentially consume noncolored DOC, while photochemical processing re

The Concordant Space of Biomedical Science : How Individuals with Parkinson's Disease Synchronize themselves with Clinical Trials

Parkinson’s disease (PD) becomes more frequent as populations grow older in western countries. Levodopa exists as medication, but is connected with side-effects. In search for an alternative therapy, patients become agents in different ways. The role as participant in clinical trials, not least, is one of these possibilities for lay influence in scientific matters. In this presentation we ask how

Real-life clinical outcomes with everolimus eluting platinum chromium stent with an abluminal biodegradable polymer in patients from the Swedish Coronary Angiography and Angioplasty Registry (SCAAR)

Background: No previous studies have evaluated the performance of the Synergy stent in a large real-life population. Objectives: To describe the initial real-life experience with a novel everolimus eluting platinum chromium stent with abluminal biodegradable polymer (SYNERGY) in unselected patients from a nationwide registry. Methods: All implanted Synergy stents were compared with other new gener

Time-specific and cumulative effects of exposure to parental externalizing behavior on risk for young adult alcohol use disorder

Background Previous studies indicate that parental externalizing behavior (EB) is a robust risk factor for alcohol use disorder (AUD) in their children, and that this is due to both inherited genetic liability and environmental exposure. However, it remains unclear whether the effects of exposure to parental EB vary as a function of timing and/or chronicity. Methods We identified biological parent

CRY1/2 Selectively Repress PPARδ and Limit Exercise Capacity

Cellular metabolite balance and mitochondrial function are under circadian control, but the pathways connecting the molecular clock to these functions are unclear. Peroxisome proliferator-activated receptor delta (PPARδ) enables preferential utilization of lipids as fuel during exercise and is a major driver of exercise endurance. We show here that the circadian repressors CRY1 and CRY2 function a

An Expanded Genome-Wide Association Study of Type 2 Diabetes in Europeans

To characterize type 2 diabetes (T2D)-associated variation across the allele frequency spectrum, we conducted a meta-analysis of genome-wide association data from 26,676 T2D case and 132,532 control subjects of European ancestry after imputation using the 1000 Genomes multiethnic reference panel. Promising association signals were followed up in additional data sets (of 14,545 or 7,397 T2D case an

Genome-wide association study of immunoglobulin light chain amyloidosis in three patient cohorts : Comparison with myeloma

Immunoglobulin light chain (AL) amyloidosis is characterized by tissue deposition of amyloid fibers derived from immunoglobulin light chain. AL amyloidosis and multiple myeloma (MM) originate from monoclonal gammopathy of undetermined significance. We wanted to characterize germline susceptibility to AL amyloidosis using a genome-wide association study (GWAS) on 1229 AL amyloidosis patients from G

Ostomy-related complications after emergent abdominal surgery a 2-year follow-up study

PURPOSE: The aim of this study was to prospectively evaluate ostomy-related complications and describe ostomy configuration in patients undergoing acute abdominal surgery. SUBJECTS AND SETTING: The study sample comprised 144 patients with a median age of 67 years (IOR: 53.5-78 years) who underwent an intestinal ostomy as part of an acute abdominal surgical procedure. The research setting was the s

Phylogenetic relationships of freshwater fishes of the genus Capoeta (Actinopterygii, Cyprinidae) in Iran

The Middle East contains a great diversity of Capoeta species, but their taxonomy remains poorly described. We used mitochondrial history to examine diversity of thealgae-scraping cyprinid Capoeta in Iran, applying the species-delimitingapproaches General Mixed Yule-Coalescent (GMYC) and Poisson Tree Process (PTP) as well as haplotype network analyses. Using the BEAST program, we also examined tem

Shock and stabilisation following long-term drought in tropical forest from 15 years of litterfall dynamics

Litterfall dynamics in tropical forests are a good indicator of overall tropical forest function, indicative of carbon invested in both photosynthesising tissues and reproductive organs such as flowers and fruits. These dynamics are sensitive to changes in climate, such as drought, but little is known about the long-term responses of tropical forest litterfall dynamics to extended drought stress.

Phase transition in random distance graphs on the torus

In this paper we consider random distance graphs motivated by applications in neurobiology. These models can be viewed as examples of inhomogeneous random graphs, notably outside of the so-called rank-1 case. Treating these models in the context of the general theory of inhomogeneous graphs helps us to derive the asymptotics for the size of the largest connected component. In particular, we show t