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Evaluation of fetal regional cerebral blood perfusion using power Doppler ultrasound and the estimation of fractional moving blood volume

Objective To standardize the evaluation of regional fetal brain blood perfusion, using power Doppler ultrasound (PDU) to estimate the fractional moving blood volume (FMBV) and to evaluate the reproducibility of this estimation. Methods Brain blood perfusion was evaluated in 35 normally grown fetuses at 28-30 weeks of gestation, using PDU. The following cerebral regions were included in the PDU col

Soy product consumption in 10 European countries: the European Prospective Investigation into Cancer and Nutrition (EPIC) study

Objective:. The aim of this study was to describe the variation of soy product intake in 10 European-countries by using a standardised reference dietary method. A subsidiary aim was to characterise the pattern of soy consumption among a sub-group of participants with a habitual health-conscious lifestyle (HHL), i.e. non-meat eaters who are fish eaters, vegetarians and vegans. Design: A 24-hour die

A handbook formula for the inductance of a single-layer circular coil

A compact six-figure approximation formula for the inductance of a cylindrical current sheet is presented. The formula displays the correct asymptotic behavior in the respective cases of very long and very short coils. The efficiency of the approximation formula is due to a thorough analysis of the exact formula.

Single-molecule linewidths of terrylene in incommensurate biphenyl: Thermocycling and time-resolved experiments

The purely electronic linewidth delta of terrylene impurity molecules in monocrystalline biphenyl is studied at temperatures T between 1.7 and 3.5 K using the technique of single-molecule spectroscopy (SMS). Based on the data obtained, individual molecules appear to have their own law of delta(T) dependence; further, hysteresis effects have been observed in thermocycling experiments. The single-mo

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Acute acalculous cholecystitis (AC) is an inflammatory process of the gallbladder, often caused by other severe diseases. The etiology is multifactorial, but the pathogenesis is in all cases a reduction in the gallbladder's emptying capacity. The mortality of AC reaches 85% without treatment. This fact makes it important to consider AC as a possible complication to major surgery, multi-trauma, and

Detection of autonomic modulation in permanent atrial fibrillation

A new signal processing method for the detection of cyclic variations in atrial fibrillation frequency is presented. The objective was to investigate whether or not respiration, through the autonomic nervous system, modulates the fibrillation frequency in patients with permanent atrial fibrillation. A group of eight patients with permanent atrial fibrillation, atrioventricular block III and a perm

Effects of energy conservation and saturation in Mueller's dipole cascade formulation

The effects of energy conservation and saturation are studied in the coordinate space dipole formulation for QCD cascades. Preliminary results for dipole-dipole and dipole-nucleus scattering are presented. Very large effects are obtained from energy conservation, corresponding to a factor similar to 10 in the cross section and similar to 3 in lambda(eff). Some results on the gluon fusion process g

NMR studies of molecular mobility in a DNA-amphiphile complex

The molecular mobility in a hexagonal DNA-cationic surfactant complex is studied using H-1 and C-13 nuclear magnetic resonance spectroscopy. The charge-compensated complex can swell in water up to a content of approximately seven water molecules per charge. The NMR measurements show that in the dry state the alkyl chains of the surfactant have the properties of a disordered solid with internal mot

Frequent activation of CArG binding factor-A expression and binding in N-methyl-N-nitrosourea-induced rat mammary carcinomas

We previously identified a positive transcriptional element identical to human Ha-ras response element ( HRE) within the promoter of the rat Ha-ras gene. We further identified CArG binding factor A ( CBF-A), a member of heterogeneous nuclear ribonuclear protein ( hnRNP) gene family, as a trans-acting factor that binds the HRE sequence with high affinity in rat mammary carcinoma cells. To determine

Estimation of conversion factors for fungal biomass determination in compost using ergosterol and PLFA 18 : 2 omega 6,9

Eleven species of common fungi from compost were analysed for their content of ergosterol and phospholipid fatty acids (PLFAs) after growth on agar media. Mean content of ergosterol was 3.1 mg g(-1) dw of fungal mycelium (range 1-24 mg g(-1) dw). Total amount of PLFAs varied between 2.6 and 43.5 mumol g(-1) dw of fungi (mean 14.9 mumol g(-1) dw). The most common PLFAs were 16:0,18:2omega6,9 and 18

Heat Flow in Building Components, Experiment and Analysis

Three building components exposed to natural climate were studied: a dynamic insulation in the ceiling of a house, an outer wall and one window in the same wall. The term dynamic insulation implies that part of the inlet or exhaust air passes through the insulation of a house. A house with dynamic insulation was continuously measured for approximately a year and a half. The performance of the dyna

A mechanical stretch induces contractile activation in unstimulated developing rat skeletal muscle in vitro

The effects of a stretch-release cycle (25 of the resting muscle fibre length, Lo) on both tension and [Ca2+i in small, unstimulated, intact muscle fibre bundles isolated from adult and neonatal rats were investigated at 20 C. The results show that the effects of the length change depended on the age of the rats. Thus, the length change produced three effects in the neonatal rat muscle fibre bundl