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Turbulence characteristics and dispersion in a forest - tests of Thomson's random-flight model

A dispersion experiment, where the tracer SF6 Was released from line sources, was carried out within a young pine forest. Line sources made of silicone tubes were installed at different heights and distances from a tower. Vertical concentration profiles were measured on the tower and the samples were analysed with a gas chromatograph. The measured concentration profiles were compared to those calc

Energy balance closure of two bog surfaces in central Sweden

Typical bogs in the boreal forest zone can be characterised by hummock and hollow micro-topography and sparsely vegetated surfaces. Their energy balance has been studied much less than for other types of surface, i.e. fields and forests. Micrometeorological measurements were carried out in central Sweden at two bogs in different summer seasons. From the measured profiles of wind speed, air tempera

Changes in the profile of simple mucin-type O-glycans and polypeptide GalNAc-transferases in human testis and testicular neoplasms are associated with germ cell maturation and tumour differentiation

Testicular germ cell tumours (TGCT) exhibit remarkable ability to differentiate into virtually all somatic tissue types. In this study, we investigated changes in mucin-type O-glycosylation, which have been associated with somatic cell differentiation and cancer. Expression profile of simple mucin-type O-glycans (Tn, sialyl-Tn, T), histo-blood group H and A variants and six polypeptide Ga1NAc-tran

Synthesis of New Thiol Derivatives of Os3(CO)12; Crystal Structure of HOs3(CO)10(SBut)

The clusters [Os3(CO) 10(/z-H) {/z-SC(CH3)3} ] (1) and [Os3(CO) to(/z-H) {p-SCeHH } ] (2) have been synthesized by addition of the appropriate thiol RSH (R ffi C(CH3)3, CeHH) to [Os3(CO) it (NCMe) ] or [Os3(CO) io(NCMe)2] in dichloromethane. Clusters 1 and 2 have been characterized by 1R, NMR, mass speetromet~, and, in the case of 1, X-ray crystallography. Compound I crystallizes in space group P2

The epidemiology of total hip replacement in the Netherlands and Sweden - Present status and future needs

By combining data from the Discharge registers and the census bureaus in The Netherlands and Sweden, we calculated the age-specific incidences of primary total hip replacement (THR), studied the demographic profile of the population receiving THR and predicted demands. In the period 1986-1997, the number of THRs increased by 20% in Sweden to 10,000 operations (1131100,000 inhabitants) and by 68% t

Risk of myocardial infarction in relation to plasma levels of homocysteine and inflammation-sensitive proteins: a long-term nested case-control study.

Several studies have found that the homocysteine plasma level is associated with cardiovascular disease. The authors previously described a relationship between concentrations of fibrinogen and other inflammation-sensitive plasma proteins, namely, alpha1-antitrypsin, ceruloplasmin, haptoglobin, and orosomucoid (alpha1-acid glucoprotein) and the incidence of myocardial infarction (MI). Whether leve

Binding of extracellular matrix molecules by probiotic bacteria.

Aims: The aim of this study was to investigate extracellular matrix (ECM) and mucin binding of selected bacterial isolates with probiotic features in comparison with commercially used probiotic bacteria. Methods and Results: ECM molecules were immobilized in microtitre plates ( mucin and fetuin) or on the surface of latex beads. Porcine mucin was bound by all 13 probiotic strains tested with impo

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OBJECTIVE: To study the variation of HCV 5'-NCR and core gene in serial sera collected from patients with HCV infection. METHODS: Serial sera were collected from 4 plasma-donors with HCV infection. 5'-NCR and core gene were amplified, sequenced and analyzed using software. RESULTS: All the sequences obtained from the serial sera of patients with HCV infection were 1b and 2a subtypes. The variation

Effect of osmotis pretratment and pulsed electric field on the viscoelastic properties of potato tissue.

Compression stress relaxation of potato tissue exposed to pulsed electric field (PEF) treatment, with or without osmotic pretreatment, was measured and modelled with five parameter generalised Maxwell model. The changes in viscoelastic model coefficients were quantified as a response to applied field strength, pulse length, and pulse number and were correlated with conductivity changes. Using the

Single-Dose Antibiotic Prophylaxis in Core Prostate Biopsy: Impact of Timing and Identification of Risk Factors.

objectives: To assess the level of infectious complications and the impact of timing of a single, prophylactic, oral dose of ciprofloxacin 750 mg given either 2 hours before or in conjunction with ultrasound -guided core biopsy of the prostate in men without recognised risk factors and to analyse potential risk factors. Methods: All men undergoing prostate biopsy for elevated prostate specific ant

Abdominal aortic aneurysms: experience with the Ivancev-Malmo endovascular system for aortomonoiliac stent-grafts

PURPOSE: To describe a component-based aortomonoiliac stent-graft system and the first clinical results achieved with this device in endovascular abdominal aortic aneurysm (AAA) repair. METHODS: From November 1993 to October 1996, 45 patients aged 60 to 86 years underwent endoluminal exclusion of true AAAs (median diameter 60 mm) involving the common iliac arteries (median diameter 16 mm right and

The benefits and obstacles of implementing ICTs strategies for development from a bottom-up approach

The compatibility between the implementation of information and communication technologies (ICTs) strategies and the bottom-up approach in the developmental process is assessed. In order to put the theoretical arguments into practice, the existing benefits and obstacles of implementing such strategies in reality are presented. Deriving from the analysis of the bottom-up approach is the identificat