Sökresultat

Filtyp

Din sökning på "*" gav 534443 sökträffar

Synchrotron X-ray absorption spectroscopy analysis of arsenic chemical speciation in human nail clippings

Environmental context Chronic ingestion of arsenic leads to its accumulation in keratinous tissues, which can represent a risk factor for developing cancer. We use synchrotron X-ray absorption spectroscopy to investigate chemical bonding of arsenic in the keratins from nail clippings of volunteers from areas in Atlantic Canada with low-to-moderate arsenic contamination of drinking water. The study

From policy to misery? The state agricultural farms vs. 'the rural'

1989 was a turning point in the socio-economic development in the former Eastern bloc, initiating a systemic transformation that affected the society at large. It also contributed to the crystallisation of certain cultural landscapes, hitherto largely illegible due to the inhibition of spatial processes encountered during socialism. In Poland, after a quarter-century of a free market economy, the

Modeling the formation of InP/GaxIn1-xP axial nanowire heterostructures

A model is developed to depict the formation of InP/GaxIn1-xP axial heterostructures in self-catalyzed GaxIn1-xP nanowires. The composition profiles of the InP/GaxIn1-xP axial heterostructure are calculated taking into account elastic stresses. It is shown that the InP/GaxIn1-xP axial heterojunction width at the growth temperature of 450°C is larger than 12 monolayers for nanowires with the radius

Real-Time Deployment Aspects of C-Band and Millimeter-Wave 5G-NR Systems

Fifth-generation (5G) new radio (NR) deployments are being rolled out in both the C–band (3.3 - 5.0 GHz) and millimeter-wave (mmWave) band (24.5 - 29.5 GHz). For outdoor scenarios, the C–band is expected to provide wide area coverage and throughput uniformity, whereas the mmWave band is expected to provide ultra-high throughput to dedicated areas within the C-band coverage. Due to the differences

Simulated life-threatening emergency during robot-assisted surgery

Background: With the increasing use of robot-assisted techniques for urologic and gynecologic surgery in patients with severe comorbidities, the risk of a critical incidence during surgery increases. Due to limited access to the patient the start of effective measures to treat a life-threatening emergency could be delayed. Therefore, we tested the management of an acute emergency in an operating r

Super‐Resolution Infrared Imaging of Polymorphic Amyloid Aggregates Directly in Neurons

Loss of memory during Alzheimer's disease (AD), a fatal neurodegenerative disorder, is associated with neuronal loss and the aggregation of amyloid proteins into neurotoxic β‐sheet enriched structures. However, the mechanism of amyloid protein aggregation is still not well understood due to many challenges when studying the endogenous amyloid structures in neurons or in brain tissue. Available met

Service innovation in welfare : The lack of managerial support to stimulate and promote improvement of services from a user-oriented perspective

Today, there are increased expectations that welfare employees should conduct service innovative improvements that enable more effective ways to meet the needs of children.In this study we use the definition of ‘service innovation’ as a way to change the value-adding process of the user so that it becomes better for the end-user than it was before, such as easier to handle things or situations. In

Timing of preoperative antibiotics for knee arthroplasties : Improving the routines in Sweden

BACKGROUND: A slight increase in revisions for infected joint arthroplasties has been observed in the Nordic countries since 2000 for which the reasons are unclear. However, in 2007 a Swedish study of the timing for prophylactic antibiotics in a random sample of knee arthroplasties found that only 57% of the patients had received the antibiotic during the optimal time interval 45-15 minutes before

Required to be creative : Everyday ways for dealing with inaccessibility

Today’s society promises that people with disabilities can access anything, but in practice there are numerous obstacles, and the ways in which people deal with them can be easily missed or taken for granted by policy makers. This article draws on a project in which researchers ‘go along’ people with disabilities in Sweden who demonstrate and recount accessibility troubles in urban and digital setToday’s society promises that people with disabilities can access anything, but in practice there are numerous obstacles, and the ways in which people deal with them can be easily missed or taken for granted by policy makers. This article draws on a project in which researchers ‘go along’ people with disabilities in Sweden who demonstrate and recount accessibility troubles in urban and digital set

Glucocorticoid induces human beta cell dysfunction by involving riborepressor GAS5 LincRNA

Objective: A widely recognized metabolic side effect of glucocorticoid (GC) therapy is steroid-induced diabetes mellitus (DM). However, studies on the molecular basis of GC-induced pancreatic beta cell dysfunction in human beta cells are lacking. The significance of non-coding RNAs in various cellular processes is emerging. In this study, we aimed to show the direct negative impact of GC on beta c

Type i IFN system activation in newborns exposed to Ro/SSA and La/SSB autoantibodies in utero

Objective In utero exposure of the fetus to Ro/La autoantibodies may lead to congenital heart block (CHB). In the mother, these autoantibodies are associated with activation of the type I interferon (IFN)-system. As maternal autoantibodies are transferred to the fetus during pregnancy, we investigated whether the type I IFN-system is activated also in newborns of anti-Ro/La positive mothers, and w

Potential links between Baltic Sea submarine terraces and groundwater seeping

Submarine groundwater discharge (SGD) influences ocean chemistry, circulation, and the spreading of nutrients and pollutants; it also shapes sea floor morphology. In the Baltic Sea, SGD was linked to the development of terraces and semicircular depressions mapped in an area of the southern Stockholm archipelago, Sweden, in the 1990s. We mapped additional parts of the Stockholm archipelago, areas i

Quench Dynamics in Interacting and Superconducting Nanojunctions

Effects of many-body interactions and superconducting correlations have become central questions in the quantum transport community. While most previous works investigating current fluctuations in nanodevices have been restricted to the stationary regime, Seoane's thesis extends these studies to the time domain. It provides relevant information about the time onset of electronic correlations media

Combined measurements of Higgs boson production and decay using up to 80 fb-1 of proton-proton collision data at s =13 TeV collected with the ATLAS experiment

Combined measurements of Higgs boson production cross sections and branching fractions are presented. The combination is based on the analyses of the Higgs boson decay modes H→γγ, ZZ∗, WW∗, ττ, bb, μμ, searches for decays into invisible final states, and on measurements of off-shell Higgs boson production. Up to 79.8 fb-1 of proton-proton collision data collected at s=13 TeV with the ATLAS detecto

Menstrual hygiene preparedness among schools in india : A systematic review and meta-analysis of system-and policy-level actions

With increasing girl’s enrolment in schools, school preparedness to ensure a menstrual friendly environment is crucial. The study aimed to conduct a systematic review regarding the existing evidence on menstrual hygiene management (MHM) across schools in India. It further aimed to highlight the actions that have been taken by the government to improve the MHM situation in India. We conducted the s

Pancreatic α-cells – The unsung heroes in islet function

The pancreatic islets of Langerhans consist of several hormone-secreting cell types important for blood glucose control. The insulin secreting β-cells are the best studied of these cell types, but less is known about the glucagon secreting α-cells. The α-cells secrete glucagon as a response to low blood glucose. The major function of glucagon is to release glucose from the glycogen stores in the l