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Quantitative computed tomography in measurement of vertebral trabecular bone mass. A modified method

Measurement of bone mineral concentration (BMC) can be done by several modalities. Quantitative computed tomography (QCT) can be used for measurements at different sites and with different types of bone (trabecular-cortical). This study presents a modified method reducing the influence of fat. Determination of BMC was made from measurements with single-energy computed tomography (CT) of the mean H

Genetic and nongenetic determinants of skeletal muscle glucose transporter 4 messenger ribonucleic acid levels and insulin action in twins

Context: Insulin-stimulated glucose uptake in skeletal muscle is mediated through translocation of the insulin-sensitive glucose transporter 4 ( GLUT4)-containing vesicles to the plasma membrane. Thus, skeletal muscle GLUT4 content plays an important role in whole-body insulin sensitivity. Objectives: The objectives of this study were 1) to examine the relative impact of genetic vs. environmental

Estimation of HRV spectrogram using multiple window methods focussing on the high frequency power

In this paper, the results of different multiple window spectrum analysis methods are compared in the estimation of heart rate variability (HRV) power spectra, in the high frequency band (HF), around 0.25 Hz, related to respiratory sinus arrhythmia (RSA). The evaluation is performed by simulating different spectrum shapes and peak frequency locations and calculating the mean squared error of a fre

Evaluation of the texture of fried potatoes

Texture of potatoes with different shapes (slices and strips) were evaluated after frying and in some cases after baking. Blanched and unblanched potato slices (Bintje variety) were fried at four oil temperatures: 160, 170, 180 and 190C until reaching a moisture content of similar to1.7%. A puncture test with three point support for the slices was applied to measure the texture of potato chips usi

Caring and relations : On emotional interaction in home help

Popular Abstract in Swedish Vad händer i samspelet mellan vårdbiträden i hemtjänsten och äldre människor de hjälper? Hur förhåller man sig till varandras förväntningar på relationen? Vilken inverkan har den äldres familj och vårdbiträdets arbetsgrupp på den äldres och vårdbiträdets relation? Detta är centrala frågor i denna avhandling, som handlar om omsorgssituationen i hemtjänsttagarens hem utiThis dissertation examines the interaction between municipal home-helpers and care re-cipients from a social psychological perspective. One of the starting points is a critique of some classical works in the caring science inspired by women’s studies for not taking into consideration that care-giving work constitutes social interaction. The aim is to analyse how elderly people and the home-helpers

Plastoquinone redox control of chloroplast thylakoid protein phosphorylation and distribution of excitation energy between photosystems: discovery, background, implications

Chloroplast thylakoid protein phosphorylation was discovered, and the most conspicuous phosphoproteins identified, by John Bennett at Warwick University. His initial findings were published in 1977. The phosphoproteins included apoproteins of chloroplast light harvesting complex II. Thylakoid protein phosphorylation was shown to influence distribution of excitation energy between Photosystems I an

It's like being in another world--patients' lived experience of magnetic resonance imaging.

Aim. The aim of this study was to illuminate patients' lived experience during magnetic resonance imaging. Background. Magnetic resonance imaging has increased in importance since the early 1980s and is today a common useful diagnostic tool. Although magnetic resonance imaging are non-invasive and considered painless, many patients experience anxiety, sometimes so strong that the scan has to be t

Possible impact of a primordial oil slick on atmospheric and chemical evolution

Low molecular weight liquid hydrocarbons from various sources, could have formed an oil layer covering the primeval ocean (present already 4.0-4.4 x 10(9) yr ago), preventing water from evaporating into the atmosphere. Water from other sources, precipitated by cold traps at higher altitude in the atmosphere, becomes trapped in the ocean. In a thereby more dry and presumably reducing atmosphere (be

Ceruchus chrysomelinus (Coleoptera, Lucanidae), a disappearing virgin forest relict species?

The lucanid beetle Ceruchus chrysomelinus Hochenwarth inhabits forests with a high density of moist red-rotten logs of both coniferous and deciduous trees. This habitat is very rare in Swedish forests of today and so is the species in itself. There are no recent records from the Swedish provinces of Skane, Halland, Vastergotland, Ostergotland and Halsingland, but new localities have recently been

Rate of oxidative and glycolytic metabolism in the guinea-pig oviduct in relation to contractility and hormonal cycle

The rates of oxygen consumption and lactate production in the guinea-pig oviduct were measured together with registration of contractile activity during three phases of the hormonal cycle. In pro-oestrus (high oestrogen, low progesterone levels) and oestrus (time of ovulation, high oestrogen and progesterone) the rate of O2 consumption was higher than in dioestrus (low oestrogen, high progesterone

Semidirect parallel self-consistent field: the load balancing problem in the input/output intensive self-consistent field iterations

The full capacity of contemporary parallel computers can, in the context of iterative ab initio procedures like, for example, self-consistent field (SCF) and multiconfigurational SCF, only be utilized if the disk and input/output (I/O) capacity are fully exploited before the implementation turns to an integral direct strategy. In a recent report on parallel semidirect SCF http://www.tc.cornell.edu

Effects of condensing agent and nuclease on the extent of ejection from phage lambda

We have recently demonstrated, that DNA ejection from bacteriophage I can be partially or completely suppressed in vitro by external osmotic pressure. This suggests that DNA ejection from phage is driven by an internal mechanical force consisting of DNA bending and DNA-DNA electrostatic repulsion energies. In the present work we investigate the extent to which DNA ejection is incomplete at zero os