Sökresultat

Filtyp

Din sökning på "*" gav 539870 sökträffar

Chemical mapping of DNA and counter-ion content inside phage by energy-filtered TEM

Double-stranded DNA in many bacterial viruses (phage) is strongly confined, which results in internal genome pressures of tens of atmospheres. This pressure is strongly dependent on local ion concentration and distribution within the viral capsid. Here, we have used electron energy loss spectroscopy (EELS), energy-filtered TEM (EFTEM) and X-ray energy dispersive spectroscopy to provide such chemic

The transcriptional co-repressor myeloid translocation gene 16 inhibits glycolysis and stimulates mitochondrial respiration.

The myeloid translocation gene 16 product MTG16 is found in multiple transcription factor-containing complexes as a regulator of gene expression implicated in development and tumorigenesis. A stable Tet-On system for doxycycline-dependent expression of MTG16 was established in B-lymphoblastoid Raji cells to unravel its molecular functions in transformed cells. A noticeable finding was that express

Increasing awareness about venous disease: The American Venous Forum expands the National Venous Screening Program

Objective: To evaluate the results of the expanded National Venous Screening Program (NVSP) as administered by the American Venous Forum. Methods. Eighty-three physicians across 40 states participated in screening Americans for venous disease. The NVSP instrument included demographics, venous thromboembolism (VTE) risk assessment, quality-of-life (QOL) assessment, duplex ultrasound scan for reflux

Biometrics and sub-specific identification of white-spotted Bluethroats (Luscinia svecica cyanecula and L. s. namnetum) during autumn and winter.

Detailed analyses of the biometrics of white-spotted bluethroats captured in the Iberian Peninsula and sub-Saharan Africa show that previous criteria for diagnosing subspecies are inadequate. This deficiency seems to result from feather wear during the breeding period and so new criteria are proposed for the migratory and wintering periods. Foreign recoveries in Portugal indicate that the new crit

Echocardiographic prediction of patent ductus arteriosus in need of therapeutic intervention

Aim: To evaluate the efficacy of various echocardiographic markers in predicting a patent ductus arteriosus (PDA) in need of treatment. Methods: Forty-five preterm infants with a mean (SD) gestational age of 27.7 (1.9) weeks underwent echocardiography at a postnatal age of 24 +/- 6 and 72 +/- 6 h. Four echocardiographic markers were studied: ductus diameter, ductal flow Doppler curves, the left at

Neuropsychological sequelae of work-stress-related exhaustion

The aim was to assess long-term cognitive performance after substantial recovery from work-stress-related exhaustion, in relation to subjective cognitive complaints and return to active work. In total, 54 patients previously diagnosed with work-stress-related exhaustion participated in a neuropsychological examination similar to 2 years after initial sick leave. Most participants were substantiall

Effect of the quinoline-3-carboxamide ABR-215757 during inflammation

ABR-215757 (5757) is a quinoline-3-carboxamide (Q-compound) currently in clinical development for systemic sclerosis. Q-compounds have shown efficacy in several different models of autoimmune diseases such as experimental autoimmune encephalomyelitis (EAE) and collagen induced arthritis. However, the mechanism of action is still poorly understood. In this thesis we have tried to find the mechanism

Male and female effects on fertilization success and offspring viability in the Peron’s tree frog, Litoria peronii

There is increasing theoretical and empirical evidence that genetic compatibility among partners is an important determinant of fertilization success and offspring viability. In amphibians, females often actively choose partners from among a variety of males and polyandry is common. Genetic compatibility among partners may therefore be an important determinant of fertilization success and offsprin

Electron relaxation in the CdSe quantum dot - ZnO composite: prospects for photovoltaic applications.

Quantum dot (QD)-metal oxide composite forms a "heart" of the QD-sensitized solar cells. It maintains light absorption and electron-hole separation in the system and has been therefore extensively studied. The interest is largely driven by a vision of harvesting the hot carrier energy before it is lost via relaxation. Despite of importance of the process, very little is known about the carrier rel

Bulk and surface characterization of In2O3(001) single crystals

A comprehensive bulk and surface investigation of high-quality In2O3(001) single crystals is reported. The transparent-yellow, cube-shaped single crystals were grown using the flux method. Inductively coupled plasma mass spectrometry (ICP-MS) reveals small residues of Pb, Mg, and Pt in the crystals. Four-point-probe measurements show a resistivity of 2.0 +/- 0.5 x 10(5) Omega cm, which translates

Knowledge Maturity as a Means to Support Decision Making During Product-Service Systems Development Projects in the Aerospace Sector

Streamlining new product development forces companies to make decisions on preliminary information. This article considers this challenge within the context of project management in the aerospace sector and, in particular, for the development of product-service systems. The concept of knowledge maturity is explored as a means to provide practical decision support, which increases decision makers’

Towards an instrument targeting mobility-related participation: Nordic cross-national reliability

Objective: To investigate test-retest reliability and internal consistency of a new instrument for evaluation of mobility device interventions. Material and methods: The instrument comprised 4 scales and one summed index. Two test-retest interviews involved 147 mobility device users (mean age 60 years) with a broad range of functional limitations, living at home. Results: For 2 scales and the summ

A comparison between different methods to determine moisture transport properties of cementitious materials

A number of methods for measuring moisture transport properties of cementitious materials were compared in a series of experiments. Two OPC mortars with two water-binder-ratios were wet cured for six months and used to produce specimens as discs with different thicknesses and diameters. The cup methods were easy to use, reliable and fairly rapid but need a stable, surrounding, CO2-free climate, ho

Projectification in Swedish municipalities. A case of porous organizations

This article aims to expand our understanding of projectification in Swedish municipalities. Above all the article explores to what extent processes of projectification can be identified and if so how they unfold. The article draws its inspiration from critical management studies and uses the notion of sensemaking to identify the practices of projectification processes. Three processes of projecti

Fast-framing ballistic imaging of velocity in an aerated spray

We describe further development of ballistic imaging adapted for the liquid core of an atomizing spray. To fully understand spray breakup dynamics, one must measure the velocity and acceleration vectors that describe the forces active in primary breakup. This information is inaccessible to most optical diagnostics, as the signal is occluded by strong scattering in the medium. Ballistic imaging mit

Spin resonance without spin splitting

We predict that a single-level quantum dot without discernible splitting of its spin states develops a spin-precession resonance in charge transport when embedded into a spin valve. The resonance occurs in the generic situation of Coulomb blockaded transport with ferromagnetic leads whose polarizations deviate from perfect antiparallel alignment. The resonance appears when electrically tuning the

Liquid ionization chamber calibrated gel dosimetry in conformal stereotactic radiotherapy of brain lesions

Hypofractionated conformal stereotactic radiotherapy (HCSRT) is an established method of treating brain lesions such as arteriovenous malformations (AVMs) and brain metastases. The aim of this study was to investigate the reliability of treatment plans in the terms of dose distribution and absorbed dose for HCSRT. Methods and materials. Treatment plans for three different clinical intracerebral ta