Sökresultat

Filtyp

Din sökning på "*" gav 556826 sökträffar

Numerical modelling of fracture initiation in large steel specimens at impact

Dynamic mode I fracture initiation in impact loaded single edge bend specimens with a quarter notch is investigated by numerical modelling and the results are compared with sets of experimental data from two different steel qualities. The finite element analysis include 2D (two-dimensional) plane strain, 2D plane stress and 3D models. No crack growth is included in the calculations. The impact vel

Contrast sensitivity and visual recovery time in diabetic patients treated with panretinal photocoagulation

PURPOSE: To study patients treated with panretinal photocoagulation regarding contrast sensitivity and visual recovery time after exposure to glare. METHODS: To compare contrast sensitivity and visual recovery-time after exposure to glare in eyes (n=20) from 20 type 1 diabetic patients treated with panretinal photocoagulation for proliferative retinopathy with eyes (n= 19) from 19 un-treated type

Evaluation of a modified interview version and of a self-rating version of the Suicide Assessment Scale.

The Suicide Assessment Scale (SUAS) was constructed to be sensitive to change of suicidality. It was recently found to be predictive of suicide in a group of suicide attempters. The aim of the present study was to evaluate the reliability and validity of a modified interview version of SUAS with defined scores and also a new self-rating version (SUAS-S). The subjects consisted of former inpatients

Effect of iodixanol particle size on the mechanical properties of a PMMA based bone cement.

Iodixanol (IDX) is a water soluble opacifier widely used in radiographical examinations of blood vessels and neural tissue, and it has been suggested as a potential contrast media in acrylic bone cement. The effect of the iodixanol particle size on the polymerisation process of the bone cement, the molecular weight, and the quasi-static mechanical properties have been investigated in this article.

Value Dimensions, Meaning, and Complexity in Human Occupation – A Tentative Structure for Analysis.

In occupational therapy and occupational science, it is important to clarify the perspective from which the analysis of occupation is addressed. The purpose of this paper is to present a tentative structure for describing occupation, allowing for analysis in a lifelong panorama as well as for the immediate experience a person acquires from performing a single occupation. The concept of occupationa

Characterization of human embryonic stem cell lines by the International Stem Cell Initiative

The International Stem Cell Initiative characterized 59 human embryonic stem cell lines from 17 laboratories worldwide. Despite diverse genotypes and different techniques used for derivation and maintenance, all lines exhibited similar expression patterns for several markers of human embryonic stem cells. They expressed the glycolipid antigens SSEA3 and SSEA4, the keratan sulfate antigens TRA-1-60

Long-term effects of inflammation-sensitive plasma proteins and systolic blood pressure on incidence of stroke.

Background and Purpose— The present study investigated the relationships between inflammation-sensitive plasma proteins (ISPs) and systolic blood pressure (SBP), as well as the joint long-term effects of ISP and SBP on incidence of stroke. Methods— BP and 5 ISPs (fibrinogen, {alpha}1-antitrypsin, haptoglobin, ceruloplasmin, orosomucoid) were assessed in 6071 healthy men 28 to 61 years of age. All

Electroanatomic mapping of transseptal conduction during coronary sinus pacing in patients with paroxysmal atrial fibrillation

Objective - To delineate the electrophysiological properties of transseptal conduction from the left to the right atrium in patients with paroxysmal atrial fibrillation ( AF). Design and results - Right atrial mapping using the electroanatomic mapping technique was performed at 111 +/- 16 sites in 16 patients with paroxysmal AF during pacing from distal coronary sinus ( CS). A single transseptal b

Multisite controlled study of OROS methylphenidate in the treatment of adolescents with attention-deficit/hyperactivity disorder

BACKGROUND: Despite the persistence of attention-deficit/hyperactivity disorder (ADHD) into adolescence, little is known about the efficacy and tolerability of stimulant medications in this age group. OBJECTIVE: To report the results of a multisite controlled study among adolescents with ADHD evaluating the efficacy and tolerability of osmotic-release oral system (OROS) methylphenidate. DESIGN: Ad

Conflicts regarding dams with several functions

We are facing a water crisis because the world’s water resources must supplya population of record size. Strategic use of water and utilisation of damsin some form will be an important part of the solution. The pressure for multiobjective utilisation of dams will increase. But if one and the same dam isto be employed for a number of purposes, conflicts of interest may arise. Whendams are to provid

Icelandic patients in oncology outpatient care: Distress, coping and satisfaction with care

This study was conducted at three oncology outpatient clinics in Iceland. The overall aim was to investigate outpatient psychosocial distress, coping strategies and satisfaction with care and to explore patients? experiences of having cancer while receiving treatment. Specific focus was on comparison between genders, age groups and those who lived close to treatment centre vs. those who had to

Constituting the feminist subject in poststructuralist discourse

In this article, we describe a collective biography that we convened in order to revisit the site of the radical theoretical break with the liberal humanist individual marked by the poststructuralist work of Henriques and colleagues and the feminist poststructuralist work of Weedon. These writers suggest that the new subject of poststructuralist theory will be more open to the changes desired by f

Change and Identity : Protestant English Interpretations of John Henry Newman's Secession, 1845–1864

This dissertation argues that the English Protestant interpretations between 1845 and 1864 of John Henry Newman’s secession were related to the notions which formed part of the British national identity. It demonstrates how various writers modelled their interpretations of Newman’s secession on the beliefs of British anti-Catholicism. By understanding the British national identity as a common cult

Deformation gradient based kinematic hardening model

A kinematic hardening model applicable to finite strains is presented. The kinematic hardening concept is based on the residual stresses that evolve due to different obstacles that are present in a polycrystalline material, such as grain boundaries, cross slips, etc. Since these residual stresses are a manifestation of the distortion of the crystal lattice a corresponding deformation gradient is i