Search results

Filter

Filetype

Your search for "*" yielded 532267 hits

Mobile Computing from a Developer's Perspective: A 10-Year Review, 1999-2008

This review has examined research in mobile computing from a developer's perspective. The review was underpinned by the assumption that mobile computing has accentuated factors compared to stationary computing that ought to be managed to harness the possibilities of mobile computing. Applying a developer's perspective rendered a certain interest in design-oriented research, i.e. prescriptive resea

Meteorological, agricultural and socioeconomic drought in the Duhok Governorate, Iraqi Kurdistan

Drought is a recurrent natural hazard that is expected to increase in the future due to anthropogenic climate change. The Middle East region witnessed a drought period between 2007 and 2009 that has been reported to have severe consequences for the population, especially in Syria and Iraq. This study seeks to assess the spatial and temporal characteristics of the drought in the Duhok Governorate i

Formation of polar InN with surface Fermi level near the valence band maximum by means of ammonia nitridation

Development of InN films for devices is hindered due to metallic In clusters, formed readily during growth, and unintentional n-type conductivity of the nominally undoped films, including surface electron-accumulation layers via the Fermi level pinning into the conduction band. Plasma nitridation eliminates even large In clusters from the surface by changing them to two-dimensional InN [Yamaguchi

The lichen genus Caloplaca (Ascomycota, Lecanoromycetes) on Svalbard. Notes and additions.

23 species of the lichen genus Caloplaca from Svalbard are described and/or discussed. The descriptions are natural language descriptions based on characters for each species coded into LIAS (Global Information System for Lichenized and Non-Lichenized Ascomycetes). A total of 37 Caloplaca species are listed for Svalbard, of which two species: C. elvebakkiana and C. scabrosa are described as new to

Ionization by pH and Anionic Surfactant Binding Gives the Same Thickening Effects of Crosslinked Polyacrylic Acid Derivatives

Physical properties of aqueous solutions of hydrophobically modified crosslinked polyacrylic acids change quite extensively as the polymer is charged up. A study is carried out concerning the similarities between two polymer ionization processes, that is, by pH increment and anionic surfactant addition. The two processes charge the polymer by distinctly different mechanisms. At sufficiently high p

On the mechanisms that limit oxygen uptake during exercise in acute and chronic hypoxia: role of muscle mass

Peak aerobic power in humans ((V) over dot(O2), peak) is markedly affected by inspired O-2 tension (F-IO2). The question to be answered in this study is what factor plays a major role in the limitation of muscle peak. (V) over dot(O2) in hypoxia: arterial O-2 partial pressure (P-a,(O2)) or O-2 content (C-a,C-O2)? Thus, cardiac output (dye dilution with Cardio-green), leg blood flow (thermodilution

Contact allergy to formaldehyde. Diagnosis and clinical relevance.

Preservatives are biologically active substances mainly used in water-based products to prevent the growth of microorganisms. Most people are exposed to them on a daily basis. Formaldehyde is one of the oldest and most commonly used preservatives. However, it is a well-known contact sensitiser in dermatitis patients. The aims of this work were: i) to investigate the prevalence of contact allergy t

Modelling Epistemic Actions in Interrogative Belief Revision

Abstract in UndeterminedInterrogative belief revision is a relatively recent framework for belief revision theory, in which the epistemic state of an agent includes a representation of that agent's research agenda, i.e. the set of questions the agent wants to have answers to. This added structure opens new possibilites for various types of epistemic change that cannot be distinguished in tradition

In situ scanning electron microscopy study of fatigue crack propagation

The fatigue crack propagation rate is influenced by various mechanisms at the very vicinity of the crack tip, e.g., local plasticity and/or creep, microcracking, crack branching, and crack closure induced by plasticity and roughness. To study these mechanisms and their influence on crack propagation rate during different loadings, in situ scanning electron microscope studies have been performed. T

Insulin sensitivity increase after calcium supplementation and change in intraplatelet calcium and sodium-hydrogen exchange in hypertensive patients with Type 2 diabetes

To investigate the effect of oral calcium (Ca2+) supplementation on insulin sensitivity measured by the euglycaemic hyperinsulinaemic clamp, intraplatelet cationic concentration of Ca2+ ([Ca2+](i)) and the transmembrane sodium-hydrogen exchanger (NHE) activity in erythrocytes in subjects with Type 2 diabetes and hypertension. In this parallel randomized controlled single-blinded trial, 31 patients

Genetic Variation Within the Interleukin-1 Gene Cluster and Ischemic Stroke

Background and Purpose-Evidence is emerging that inflammation plays a key role in the pathophysiology of ischemic stroke (IS). The aim of this study was to investigate whether genetic variation in the interleukin-1 alpha, interleukin-1 beta, and interleukin-1 receptor antagonist genes (IL1A, IL1B, and IL1RN) is associated with IS and/or any etiologic subtype of IS. Methods-Twelve tagSNPs were anal

Religiös och sekulär judendom i modern tid

Analyserar olika former av religiös (reform-, ortodox och konservativ judendom) och sekulär judendom (judisk socialism, sionism och Förintelsens och förlossningens judendom).

Fick's 2nd law - Complete solutions for chloride ingress into concrete – with focus on time dependent diffusivity and boundary condition

This report focuses on models of chloride ingress into concrete that are based on mathematical solutions of Fick's second law. In recent years a lot of confusion has been identified concerning these models. In some cases time-dependencies of diffusivity have been used in a mathematically incorrect way. In other cases field and laboratory data from one way of describing the time-dependency of these

Consequences of orthostatic blood pressure variability in middle-aged men (The Malmö Preventive Project).

OBJECTIVE: To investigate the determinants and consequences of orthostatic hypotension in the middle-aged segment of the general population. METHODS: A population of 5722 men aged 52.6 +/- 3.6 years, previously included in the Malmö Preventive Project (n = 22 444 men), was re-screened after 5.6 +/- 1.0 years and thereafter followed up over a period of 19.6 +/- 5.3 years. RESULTS: At re-screening,

Method for simultaneous determination of sorption isotherms and diffusivity of cement-based materials

A method for simultaneous determination of the diffusion and sorption properties of cement-based materials is presented. It is a gravimetric method where one small specimen is exposed to stepwise changes in relative humidity while its mass is being measured. As sorption in cement-based materials is slow, the change in relative humidity to the next level is made before final equilibrium has been re

Social determinants and the role of maternal health care services for equity in maternal health in Ghana from 1988 – 2008

Popular Abstract in Swedish Avhandlingen utgår från förhållandet att mödradödligheten traditionellt varit en tungt vägande faktor för kvinnors totala sjukdomsbörda i låginkomstländer. Mödradödligheten är starkt knuten till såväl allmänna levnadsförhållanden i samhället som till tillgång och kvalitet av professionell hälsovård. Det är därför inte förvånande att mer än 99 av 100 mödradödsfall i värlMaternal health services are the least equitable health care services in most low- and middle-income countries. Improving maternal health in Ghana continues to be a major public health challenge. Socio-economic inequalities within the country are greatly reducing the use of maternal health care services despite government policy reforms to improve access to maternal health care services and interv

Validation of EULAR primary Sjogren's syndrome disease activity (ESSDAI) and patient indexes (ESSPRI)

Objectives To validate the two recently developed disease activity indexes for assessment of primary Sjogren's syndrome (SS): the European League Against Rheumatism (EULAR) SS Patient Reported Index (ESSPRI) and the EULAR SS Disease Activity Index (ESSDAI). Methods A prospective international 6-month duration validation study was conducted in 15 countries. At each visit, physicians completed ESSDA

Visual observations and acoustic measurements of cavitation in an experimental model of a high-pressure homogenizer

Cavitation is common in high-pressure homogenizers, and has severe negative effects such as noise and mechanical wear, but may also have a beneficial effect in promoting fragmentation. Greater knowledge concerning cavitation in the homogenizer valve is thus important in optimizing the design and utilization of emulsification equipment. The aim of this study was to locate the region of cavitation a

Search for top and bottom squarks from gluino pair production in final states with missing transverse energy and at least three b-jets with the ATLAS detector

This letter reports the results of a search for top and bottom squarks from gluino pair production in 4.7 fb(-1) of pp collisions at root s = 7 TeV using the ATLAS detector at the LHC. The search is performed in events with large missing transverse momentum and at least three jets identified as originating from a b-quark. Exclusion limits are presented for a variety of gluino-mediated models with