In spark assisted homogeneous charge compression ignition (SACI) engines a premixed flame is first established; the propagating flame results in compression heating of the end gas and finally auto-ignition of the gas. Two dimensional direct numerical simulation (2D DNS) and one dimensional (1D) detailed simulations of flame/spontaneous ignition interaction in a lean hydrogen/air mixture under a co

This paper reports on studies of cellular instability of lean hydrogen/air laminar premixed flames with an equivalence ratio of 0.6 at a 5 atm and a 25 atm pressure. Numerical simulations employing a detailed chemical kinetics mechanism and detailed transport properties are carried out to simulate the initial linear growth of instability as well as the nonlinear evolution of flames. At the initial

To search for an S = -1 di-baryonic state which decays toΛp, the 3He(K-,Λp)nmissing reaction was studied at 1.0 GeV/c. Unobserved neutrons were kinematically identified from the missing mass MX of the 3He (K-,Λp) X reaction in order to have a large acceptance for the Λpn final state. The observed Λpn events, distributed widely over the kinematically allowed region of the Dalitz plot, establish tha

This paper introduces means for fatigue damage rates estimation using Laplace distributed multiaxial loads. The model is suitable for description of stresses containing transients of random amplitudes and locations. Explicit formulas for computing the expected value of rainflow damage index as a function of excess kurtosis are given for correlated loads. A Laplace model is used to describe variabi

Objective: To report the outcome after ruptured abdominal aortic aneurysm (rAAA) repair in octo- and nonagenarians from the Swedish Vascular Registry 1994-2014. Material and methods: 2335 intact AAA (iAAA) and 1538 rAAA were identified in patients aged 80 years and older. Crude, long-term, and relative survival data were analysed using the Kaplan-Meier method. Crude survival was calculated includi

Gaming among young people with disabilities is often understood within a habilitation frame, as if video and computer games primarily should help to exercise and ‘improve’. Little is known about how these games are used within a private frame, and how young people with disabilities operate their gaming as concrete persons rather than as treatment-receiving clients. Through the use of stories, desc

We documented the annual cycle of the carbon isotopic composition of dissolved inorganic carbon (δ13CDIC) in the water columns of the Skagerrak and Baltic Sea to obtain an increased understanding of the processes involved controlling the carbon isotopic distribution in shelf seas. The lowest δ13CDIC values (-4.9‰) were found in the low-oxygen, brackish Baltic bottom water whereas the highest value

Background: Invasive treatment of intermittent claudication (IC) because of severe atherosclerotic stenosis or occlusion in the superficial femoral artery (SFA) is controversial. This prospective randomised trial was performed to assess the impact on health related quality of life (HRQoL) of primary stenting with nitinol self expanding stents compared with best medical treatment alone in patients

Leukotoxin is a well-known virulence factor of animal isolates of Fusobacterium necrophorum subspecies necrophorum, and is also expressed by animal isolates of subspecies funduliforme, whereas its presence in isolates from humans has not been fully established. In this study we found that the leukotoxin gene was present in all tested F. necrophorum isolates from humans. Three sequence variants wer

Background: Low-dose opioids can relieve breathlessness but may be underused in late-stage COPD due to fear of complications, contributing to poor symptom control. Objectives: We aimed to study the period prevalence and indications of opioids actually prescribed in people with end-stage COPD. Methods: The study was a longitudinal, population-based study of patients starting long-term oxygen therap

OBJECTIVE: To assess the effect of the FTO genotype on weight loss after dietary, physical activity, or drug based interventions in randomised controlled trials.DESIGN: Systematic review and random effects meta-analysis of individual participant data from randomised controlled trials.DATA SOURCES: Ovid Medline, Scopus, Embase, and Cochrane from inception to November 2015.ELIGIBILITY CRITERIA FOR S

Neurotrophic factors regulate survival and growth of neurons. The urinary bladder is innervated via both sympathetic and parasympathetic neurons located in the major pelvic ganglion. The aim of the present study was to characterize the effects of the neurotrophins nerve growth factor (NGF), brain derived neurotrophic factor (BDNF) and neurotrophin 3 (NT-3) on the sprouting rate of sympathetic and

OBJECTIVE: To examine the relative risks of iatrogenic and non-iatrogenic injuries during the period shortly before and after a diagnosis of cancer.DESIGN: Nationwide register based study.SETTING: Swedish national population and health registers.PARTICIPANTS: 720 901 patients with diagnosis of cancer, 1991-2009, in Sweden.MAIN OUTCOME MEASURES: All hospital admissions in patients with cancer with

Introduction. In contemporary society increased access to and dependence on digital technology has produced richer possibilities for outsourcing memory to external systems, an issue that becomes especially tangible in educational settings. The aim of this paper is to make visible how the changing relations between searching for and memorizing information is formed in the context of elementary scho

The objective of this study was to assess erysipelas incidence before and after liposuction treatment for patients suffering from post-mastectomy lymphedema. A prospective cohort study of 130 patients at Skåne University Hospital in Malmö, Sweden with postmastectomy arm lymphedema, who had poor outcomes from prior conservative treatment and clinical signs of subcutaneous adipose tissue hypertrophy

In this study, we assess how the Scania Green Score (SGS5), and the five distinct perceived neighbourhood green dimensions within this area-aggregated index (1 km2 squares), is associated with self-reported physical activity and general health, and if perceived safety and social coherence has a moderating effect. Two independent surveys, both conducted in Scania, Sweden, was used for data on SGS5

We investigated the effects of β-amyloid (Aβ) peptides on cholinergic synaptosomes isolated from the electric organ of the Japanese marine ray Narke japonica. Fresh and pre-incubated solutions of Aβ(1-42) inhibited acetylcholine (ACh) release from the synaptosomes evoked by high [K+] depolarization when incubated with synaptosomes for 10 min before the depolarizing stimulus. A freshly prepared sol