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Remnants of arc-related Mesoarchaean oceanic crust in the Tartoq Group of SW Greenland

The Tartoq Group, located in SW Greenland, consists of supracrustal rocks of mainly tholeiitic basaltic composition, including pillow lavas, sills/dykes and gabbros, as well as ultramafic rocks. Metamorphic grade ranges from greenschist fades to granulite facies. The Tartoq Group crops out as a series of blocks and slivers that are imbricated with originally intrusive Mesoarchaean TTG orthogneisse

Oxygen interaction with the Pd(112) surface: From chemisorption to bulk oxide formation

We investigated the interaction of oxygen with the Pd(112) surface from ultrahigh vacuum up to 5 mbars oxygen partial pressure in a temperature range from 523 to 673 K. We combined in situ surface x-ray diffraction with scanning tunneling microscopy, high-resolution core-level spectroscopy, and low-energy electron diffraction. A structural model of the clean Pd(112) is proposed based on the x-ray-

On Rapid Releases and Software Testing

Large open and closed source organizations like Google, Facebook and Mozilla are migrating their products towards rapid releases. While this allows faster time-to-market and user feedback, it also implies less time for testing and bug fixing. Since initial research results indeed show that rapid releases fix proportionally less reported bugs than traditional releases, this paper investigates the c

The effect of a biphasic injectable bone substitute on the interface strength in a rabbit knee prosthesis model.

In joint prosthetic surgery, various methods are used to provide implant stability. We used an injectable bone substitute, composed of calcium sulfate/hydroxyapatite, as bone defect filler to stabilize a tibia prosthesis in an experimental rabbit model. The aim of the study was to investigate and compare the stability of prosthetic fixation with and without the use of an injectable bone substitute

Hydrogen storage properties of the pseudo binary laves phase (Sc1-xZrx)(Co1-yNiy)(2) system

The (Sc1-xZrx)(Co1-yNiy)(2)-H-z system has been studied using both experimental techniques and ab initio calculations. The material was synthesised through high temperature synthesis and characterised using powder XRD. Hydrogen absorption and desorption was studied in-situ using synchrotron radiation. Maximal storage capacity increased when Co replaced Ni and substitution of Sc for Zr increased th

Projections of total hip replacement in Sweden from 2013 to 2030

Background and purpose - The continuously increasing demand for joint replacement surgery in the past decades imposes higher constraints on the budgets of hospitals and healthcare providers. We undertook an analysis of historical trends in total hip replacement performed in Sweden between 1968 and 2012 in order to provide projections of future demand. Data and methods - We obtained data on total h

Caesarean section and risk for endometriosis: a prospective cohort study of Swedish registries

Objective To investigate the association between caesarean section and later endometriosis. Design A prospective cohort study. Setting The Swedish Patient Register (PAR) and the Swedish Medical Birth Registry (MBR). Sample Women who were delivered in Sweden between 1986 and 2004. Methods Women with the diagnosis of endometriosis, defined as codes 617 (International Classification of Diseases, nint

A longitudinal study of physical function in patients with early-onset dementia

BACKGROUND: The aim of this study was to explore changes in mobility in terms of ambulation and transfer over 1 year in patients with early-onset Alzheimer's disease (EOAD), and to compare mobility in EOAD with patients with other types of early-onset dementia (EOOD). METHOD: Forty-two patients with EOAD and 30 patients with EOOD were included. All patients were home-dwelling and had mild or moder

Validity and usability of a virtual reality intraocular surgical simulator

Popular Abstract in Swedish Gråstarrskirurgi är en av de vanligaste kirurgiska ingreppen i Sverige med runt 90 000 operationer utförda varje år. En åldrande befolkning med ökade krav på livskvalitet och god synskärpa har lett till en ökad operationsfrekvens och fler kirurger behöver utbildas. Utbildning av nya gråstarrskirurger sker förutom ett fåtal träningstillfällen på grisar, framförallt på paCataract surgery is one of the most common surgical procedures in Sweden and around 90 000 operations are made each year. An aging population with increased demands on quality of life and good visual acuity, has led to an increased rate of surgery and more surgeons needs to be trained. Training of new cataract surgeons is done on scarce wet-lab training but mainly on patients. Training is costly a

Comparison of the Abbott RealTime CT New Formulation Assay with Two Other Commercial Assays for Detection of Wild-Type and New Variant Strains of Chlamydia trachomatis

In an analytical-method comparison study of clinical samples, the Abbott RealTime CT new formulation assay (m2000 real-time PCR), consisting of a duplex PCR targeting different parts of the cryptic plasmid in Chlamydia trachomatis, was compared both with version 2 of the Roche Cobas TaqMan CT assay, comprising a duplex PCR for a target in the cryptic plasmid and the omp1 gene, and with the Gen-Pro

Effects of Large-Scale Acquisition on Food Insecurity in Sierra Leone

The recent phenomenon of large-scale acquisition of land for a variety of investment purposes has raised deep concerns over the food security, livelihood and socio-economic development of communities in many regions of the developing world. This study set out to investigate the food security outcomes of land acquisitions in northern Sierra Leone. Using a mixture of quantitative and qualitative res

Interfacial behavior of ferrocene- and 1,4-naphthoquinone-based compounds, and their mixtures with monoolein at the air/water interface

In this work, a Study of the interfacial properties of redox-active novel ferrocene- and 1,4-naphthoquinone-based compounds containing an alkenyl chain is presented. The miscibility of these corn. pounds with 1-monooleoylglycerol (monoolein, MO), a well-known and much studied substance because of its rich polyinorphism in water, at the air/water interfaces was investigated by using the Langmuir su

Taking advantage of theories and models on human behaviour in the fire safety design of underground transportation systems

Fire accidents in underground transportation systems, e.g., tunnels and underground stations, can cause many fatalities. It is therefore important in fire safety design to give adequate consideration to all aspects related to evacuation. The paper provides a review of two previously reported fire accidents based on a theoretical framework, namely four accepted human behaviour theories. These theor

Photoinduced interfacial electron injection in RuN3-TiO2 thin films: Resolving picosecond timescale injection from the triplet state of the protonated and deprotonated dyes

Using femtosecond transient absorption spectroscopy we have studied light-induced electron injection from the sensitizer RuN3 and its partly deprotonated tetrabutylamonium salt to nano-structured TiO2 film. Previous studies have suggested significant differences in electron injection dynamics for these dyes and some results have indicated that aggregation of the sensitizer may lead to slow injecti

Tumor necrosis factor restricts hematopoietic stem cell activity in mice: involvement of two distinct receptors.

Whereas maintenance of hematopoietic stem cells (HSCs) is a requisite for life, uncontrolled expansion of HSCs might enhance the propensity for leukemic transformation. Accordingly, HSC numbers are tightly regulated. The identification of physical cellular HSC niches has underscored the importance of extrinsic regulators of HSC homeostasis. However, whereas extrinsic positive regulators of HSCs ha

Versican V2 Assembles the Extracellular Matrix Surrounding the Nodes of Ranvier in the CNS

The CNS-restricted versican splice-variant V2 is a large chondroitin sulfate proteoglycan incorporated in the extracellular matrix surrounding myelinated fibers and particularly accumulating at nodes of Ranvier. In vitro, it is a potent inhibitor of axonal growth and therefore considered to participate in the reduction of structural plasticity connected to myelination. To study the role of versica