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Polyandry and alternative mating tactics

Many species in the animal kingdom are characterized by alternative mating tactics (AMTs) within a sex. In males, such tactics include mate guarding versus sneaking behaviours, or territorial versus female mimicry. Although AMTs can occur in either sex, they have been most commonly described in males. This sex bias may, in part, reflect the increased opportunity for sexual selection that typically

The human SIN3B corepressor forms a nucleolar complex with leukemia-associated ETO homologues

Background: SIN3 ( SWI-Independent) is part of a transcriptional deacetylase complex, which generally mediates the formation of repressive chromatin. The purpose of this work was to study possible interactions between corepressors human SIN3B (hSIN3B) and the ETO homologues ETO ( eight twenty-one), MTG16 ( myeloid-transforming gene 16) and MTGR1 ( MTG-related protein 1). In addition, the subnuclea

Electrocatalytically active multi-protein assemblies using nanoscaled building blocks

Biosensors based on nanomaterials constitute an emerging area of interdisciplinary research. In particular in electrochemical sensors, electron transfer cascades can be used for defined signal generation. Our study describes the investigation of silica nanoparticles (SiNPs), DNA, cytochrome c (cyt c) and cellobiose dehydrogenase (CDH) for the development of catalytically active multi-protein assem

Effectiveness of TNF inhibitor switch in RA: results from the national Swedish register

Background Switching to a second tumour necrosis factor inhibitor (TNFi) after discontinuation of a first in rheumatoid arthritis (RA) is a common strategy. The reason for the switch from the first TNFi could potentially influence the response to therapy. Data on direct comparisons between TNFi after switching are limited. Methods The national Swedish register was used. RA patients who switched to

Genetic variation in PNPLA3 (adiponutrin) confers sensitivity to weight loss-induced decrease in liver fat in humans

Background: The rs738409 C -> G single nucleotide polymorphism in the patatin-like phospholipase domain-containing 3 (PNPLA3; adiponutrin) leads to a missense mutation (I148M), which is associated with increased liver fat but not insulin resistance. The I148M mutation impedes triglyceride hydrolysis in vitro, and its carriers have an increased risk of developing severe liver disease. Objective: We

Spending my time- Time use and meaningfulness in daily occupations as perceived by people with persistent mental illness

Engagement in daily occupations, especially those perceived as meaningful, is essential for health and well-being. According to evaluation reports, many individuals with persistent mental illness seem to lack meaningful everyday occupations. The aim of this thesis was to investigate possible relationships between occupation, operationalised as time use and daily rhythm in daily activities, among i

Pressure transduction and fluid evacuation during conventional negative pressure wound therapy of the open abdomen and NPWT using a protective disc over the intestines

Background: Negative pressure wound therapy (NPWT) has gained acceptance among surgeons, for the treatment of open abdomen, since very high closure rates have been reported with this method, compared to other kinds of wound management for the open abdomen. However, the method has occasionally been associated with increased development of fistulae. We have previously shown that NPWT induces ischemi

Bioelectrochemical studies of azurin and laccase confined in three-dimensional chips based on gold-modified nano-/microstructured silicon

Double-sided three-dimensional porous silicon chips, 6 mm x 6 mm, covered with a 40 nm gold (nano)layer, were fabricated from a porous silicon wafer. Scanning electron microscopy along with electrochemical characterisation showed sample conductivity, mechanical stability, and high surface area of the thus fabricated devices, viz. 10 times higher electrochemically active surface area compared to th

On problems, joint problem solving and change - A human behavioural approach in a construction sector context.

Critics maintain that there are a number of troublesome issues resulting from the construction sector’s way of operating and that these remain, despite widespread criticism and measures designed to change all of this. The construction sector’s and the critics’ manner of describing these problems fails to a large extent to take into consideration the way people function in connection with practical

Reactivation in Working Memory: An Attractor Network Model of Free Recall

The dynamic nature of human working memory, the general-purpose system for processing continuous input, while keeping no longer externally available information active in the background, is well captured in immediate free recall of supraspan word-lists. Free recall tasks produce several benchmark memory phenomena, like the U-shaped serial position curve, reflecting enhanced memory for early and la

Gender Differences in Predictors of Heart Failure Morbidity and Mortality in an Urban Swedish Population: The Malmo Preventive Project

Objective/Background: Reports on heart failure (HF) predictors are scarce. We assessed gender-specific HF predictors. Design: Preventive case-finding programme, register study. Setting: City population-based sample. Methods: We examined 33,342 HF-free subjects, 32.7% women, included in Malmo Preventive Project. Mean inclusion age was 49.7±7.4 years for women and 43.7±6.6 years for men. Results

Uppföljning av patient och närstående efter hjärtstopp varierar stort.

The return to a good life after successfully resuscitated cardiac arrest may be hindered by cardiovascular morbidity, psychological distress and the consequences of anoxic brain injury. To support the return to everyday life, patients and their relatives are in need of health care follow-up with multiple focuses. Usually, this follow-up consists of at least one of three parallel tracks; cardiology

Genome-wide association study identifies a variant in HDAC9 associated with large vessel ischemic stroke

Genetic factors have been implicated in stroke risk, but few replicated associations have been reported. We conducted a genome-wide association study (GWAS) for ischemic stroke and its subtypes in 3,548 affected individuals and 5,972 controls, all of European ancestry. Replication of potential signals was performed in 5,859 affected individuals and 6,281 controls. We replicated previous associatio

Design, implementation and first measurements with the Medipix2-MXR detector at the Compact Muon Solenoid experiment

The Medipix detector is the first device dedicated to measuring mixed-field radiation in the CMS (Compact Muon Solenoid) experiment cavern and able to distinguish between different particle types. Medipix2-MXR chips bump bonded to silicon sensors with various neutron conversion layers developed by the IEAP CTU in Prague were successfully installed for the 2008 LHC start-up in the CMS experimental

Low 25-OH Vitamin D is Associated with Benign Prostatic Hyperplasia

Purpose: We tested the hypothesis that low vitamin D is associated with benign prostatic hyperplasia. We also studied whether body composition, sex hormones, serum sex hormone-binding globulin, albumin corrected serum calcium, adiponectin and lipid status are associated with benign prostatic hyperplasia. Materials and Methods: We investigated 184 representative, randomly selected men 72 to 76 year

Beta-cell specific deletion of dicer1 leads to defective insulin secretion and diabetes mellitus.

Mature microRNAs (miRNAs), derived through cleavage of pre-miRNAs by the Dicer1 enzyme, regulate protein expression in many cell-types including cells in the pancreatic islets of Langerhans. To investigate the importance of miRNAs in mouse insulin secreting β-cells, we have generated mice with a β-cells specific disruption of the Dicer1 gene using the Cre-lox system controlled by the rat insulin p