Sökresultat

Filtyp

Din sökning på "*" gav 531341 sökträffar

NMR diffusometry applied to liquids

Gradient based nuclear magnetic resonance spectroscopy provides a convenient method to determine self-diffusion coefficients especially in liquid samples. The method has many advantages including short experiment time, sensitivity, molecular resolution, and accuracy - all without the need for adding perturbing probes or chemically introducing isotopes. In this contribution we introduce the method

Tactical Driving Behavior With Different Levels of Automation

This paper investigated how different types of automation affect tactical driving behavior, depending on trust in the system. Previous research indicates that drivers wait for automation to act, delegating the monitoring of traffic situations. This would be especially true for those who have more trust in automation. Behavioral and gaze data from 30 participants driving an advanced simulator were

Excited state potential energy surfaces of bistridentate Ru-II complexes - A TD-DFT study

Time-dependent density functional theory (TD-DFT) calculations have been used to investigate low-energy singlet and triplet excited state potential energy surfaces (PES) of two prototype Ru-II-bistridentate complexes: [Ru-II(tpy)(2)](2+) (tpy is 2,2':6',2 ''-terpyridine) and [Ru-II(dqp)(2)](2+) (dqp is 2,6-di(quinolin-8-yl)pyridine). Solvent effects were considered using a self-consistent reaction

Subjective Sleep Complaints Are Associated With Insulin Resistance in Individuals Without Diabetes The PPP-Botnia Study

OBJECTIVE-Sleep disorders and subjective sleep complaints have been associated with increased risk of type 2 diabetes. The evidence with respect to insulin resistance (IR) and insulin secretion in individuals without type 2 diabetes has been scarce and elusive. We examined if subjective sleep complaints and their co-occurrence were associated with IR and insulin secretion in adult women and men wi

Motives for sports participation as predictions of self-reported outcomes after anterior cruciate ligament injury of the knee

Aim of the study was to access how individual's motives for participation in sports impact on self-reported outcomes 2 years after an anterior cruciate ligament injury. Based on a longitudinal cohort study, this secondary analysis present data from the Knee Anterior Cruciate Ligament, Nonsurgical versus Surgical Treatment (KANON) study, a randomized controlled trial. At baseline, 121 patients reco

The incidence of a first major osteoporotic fracture in Iceland and implications for FRAX

Based on an extensive cohort study over 25 years, the present study supports the assumption that major osteoporotic fractures can be reasonably predicted from hip fracture rates. The construct for FRAX models depends on algorithms to adjust for double counting of fracture outcomes in some models and in others, to estimate the incidence of a major fracture from hip fracture rates. The aim of the pr

Angiogenic factors in relation to clinical effect in a phase II trial of weekly paclitaxel

Background: Several anticancer agents including paclitaxel have an inhibitory effect on angiogenesis. Aims: To compare the overall response rate and time to progression with changes in circulating angiogenic factors during palliative treatment with weekly paclitaxel. Material and methods: Patients with metastatic BC, ECOG 0-2, received weekly paclitaxel, concomitant with trastuzumab if HER2+ BC (n

Gaia-ESO Survey: Empirical classification of VLT/Giraffe stellar spectra in the wavelength range 6440-6810 angstrom in the gamma Velorum cluster, and calibration of spectral indices

We present a study of spectral diagnostics available from optical spectra with R = 17 000 obtained with the VLT/Giraffe HR15n setup, using observations from the Gaia-ESO Survey, on the gamma Vel young cluster, with the purpose of classifying these stars and finding their fundamental parameters. We define several spectroscopic indices, sampling the amplitude of TiO bands, the H alpha line core and

Poor Compliance With Primary Nocturnal Enuresis Therapy May Contribute to Insufficient Desmopressin Response

Purpose: Studies of desmopressin in children with primary nocturnal enuresis show a greater than 90% decrease in wet nights in 20% to 30%, a 50% to less than 90% decrease in 20% to 40% and less than a 50% decrease in up to 60%. Insufficient response to desmopressin is attributable to various factors, including differences in the primary nocturnal enuresis definition, underlying bladder dysfunction

Differences and time trends in drug treatment of atrial fibrillation in men and women and doctors' adherence to warfarin therapy recommendations

Little is known about prescription trends in atrial fibrillation (AF) in primary health care in Sweden. The aim was to study time trends in pharmacotherapy, in men and women with AF. We also aimed at studying doctors' adherence to CHADS2 for prescribing warfarin. CHADS2 assesses stroke risk by presence of known risk factors, i.e., congestive heart failure, hypertension, age > 75 years, diabetes, p

Self-assembly of block copolymer-based ionic supramolecules based upon multi-tail amphiphiles

Utilising simple acid-base titration chemistry, a new family of Linear-b-Amphiphilic Comb (L-b-AC) ionic supramolecules [Soft Matter 2013, 9, 1540-1555] featuring multi-tail side-chains have been synthesized and examined by synchrotron SAXS. To three different parent diblock copolymers of poly(styrene)-b-poly( methacrylic acid) PS-b-PMAA multi-tail ammonium side-chains of (C8)(2)-, (C8)(4) -or (C1

Effects of melanocortin 1 receptor agonists in experimental nephropathies.

Nephrotic syndrome, characterized by massive proteinuria, is caused by a large group of diseases including membranous nephropathy (MN) and focal segmental glomerulosclerosis (FSGS). Although the underlying mechanisms are beginning to unravel, therapy is unspecific and far from efficient. It has been suggested that adrenocorticotropic hormone (ACTH) has beneficial effects in patients with MN and po

Non-invasive mapping of deep-tissue lymph nodes in live animals using a multimodal PET/MRI nanoparticle.

The invasion status of tumour-draining lymph nodes (LNs) is a critical indicator of cancer stage and is important for treatment planning. Clinicians currently use planar scintigraphy and single-photon emission computed tomography (SPECT) with (99m)Tc-radiocolloid to guide biopsy and resection of LNs. However, emerging multimodality approaches such as positron emission tomography combined with magn

Adaptive CPU Resource Management for Multicore Platforms

The topic of this thesis is adaptive CPU resource management for multicore platforms. The work was done as a part of the resource manager component of the adaptive resource management framework implemented in the European ACTORS project. The framework dynamically allocates CPU resources for the applications. The key element of the framework is the resource manager that combines feedforward and fee

Opportunity from crisis: a common agenda for higher education and science, technology and innovation policy research

This paper makes a plea for the construction of a common agenda for higher education and science, technology and innovation (STI) policy research. The public higher education and research sector in all countries is currently in the grip of several challenges arising from increased accountability, internationalization and in some cases dwindling resources. Even as the sector is struggling to come t

A 1V power amplifier for 81-86 GHz E-band

The design and layout of a two stage SiGe E-band power amplifier using a stacked transformer for output power combination is presented. In EM-simulations with ADS Momentum, at E-band frequencies, the power combiner consisting of two individual single turn transformers performs significantly better than a single 2:1 transformer with two turns on the secondary side. Imbalances in the stacked transfo