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A density functional study of oxygen atom transfer reactions between biological oxygen atom donors and molybdenum(IV) bis(dithiolene) complexes

Density functional calculations have been used to investigate oxygen atom transfer reactions from the biological oxygen atom donors trimethylamine N-oxide (Me3NO) and dimethyl sulfoxide (DMSO) to the molybdenum(IV) complexes [MoO(mnt)(2)](2-) and [Mo(OCH3)(mnt)(2)](-) (mnt = maleonitrile-1,2-dithiolate), which may serve as models for mononuclear molybdenum enzymes of the DMSO reductase family. The

Hydration of MCM-41 studied by sorption calorimetry

Hydration of mesoporous silica MCM-41 was studied using the method of sorption calorimetry. By combining water sorption and nitrogen sorption experiments, we calculated the density of silanol groups on the MCM41 surface as 1.6 nm(-2). Comparison of capillary condensation regimes of water and nitrogen showed that the apparent density of water confined in MCM-41 pores is ca. 0.88 g/cm(3). The pore d

Cyclodextrin-surfactant complex: A new route in DNA decompaction

In the present work, we show a new approach for decompaction of DNA-cationic surfactant complexes, e.g., lipoplexes, by using beta-cyclodextrin (beta-CD). The DNA decompaction was achieved by dissolving the surfactant aggregates in the complex by making use of the high affinity between the beta-CD and the free surfactant in solution. The results from fluorescence microscopy and adiabatic compressi

Stakeholder impact analysis in construction project management

Construction projects attract interest from various stakeholders who express needs and expectations about the project. These are often in conflict with each other and it is unlikely that all of them can be fulfilled. The stakeholder management process involves evaluating the needs and expectations of stakeholders in relation to the main objectives of the project. An important basis for this evalua

The usefulness of direct ethanol metabolites in assessing alcohol intake in nonintoxicated male patients in an emergency room setting

Background: A major part of medical pathology in internal medicine is associated with chronic alcoholism. The aim of the current study was to investigate whether screening for Alcohol Use Disorders (AUD) can be improved through determination of direct ethanol metabolites compared to traditional biological state markers, the Alcohol Use Disorders Identification Test (AUDIT) and additional self-repo

Corneal surface changes in Thygeson's superficial punctate keratitis: a clinical and non-contact photomicrographic in vivo study in the human cornea

PURPOSE. To elucidate mechanisms behind the morphology of Thygeson's superficial punctate keratitis (TSPK). METHODS. Sixteen patients were examined with the slit lamp and photographed by non-contact photomicrography. The results were compared with morphology of epithelial keratitis in herpes simplex type 1 (HSV1), varicella zoster (VZV), and adenovirus type 8 (Ad8) infections, all previously studi

Invasive cutaneous malignant melanoma in Sweden, 1990-1999 - A prospective, population-based study of survival and prognostic factors

BACKGROUND. The objective of the current study was to compile prospective, population-based data on cutaneous invasive melanomas in Sweden during the period from 1990 to 1999, to describe and analyze survival data and prognostic factors, and to make comparisons with previously published Swedish and international data. METHODS. Twelve thousand five hundred thirty-three patients, which included 97%

Segmentation of complex cell clusters in microscopic images: Application to bone marrow samples. : application to bone marrow samples

BACKGROUND: Morphologic examination of bone marrow and peripheral blood samples continues to be the cornerstone in diagnostic hematology. In recent years, interest in automatic leukocyte classification using image analysis has increased rapidly. Such systems collect a series of images in which each cell must be segmented accurately to be classified correctly. Although segmentation algorithms have

In situ reduction study of cobalt model Fischer-Tropsch synthesis catalysts

Fischer-Tropsch (FT) synthesis is an important process to manufacture hydrocarbons and oxygenated hydrocarbons from mixtures of carbon monoxide and hydrogen (syngas). The catalysis process occurs on, for example, cobalt metal surfaces at elevated temperatures and pressures. A fundamental understanding of the reduction pathway of supported cobalt oxides, and the intermediate species present during

Experimental study of the gamma p -> pi (0)pi(0) p reaction with the Crystal Ball/TAPS detector system at the Mainz Microtron

The gamma p -> pi(0)pi(0) p reaction has been measured from threshold to 1.4 GeV using the Crystal Ball and TAPS photon spectrometers together with the photon tagging facility at the Mainz Microtron. The experimental results include total and differential cross sections as well as specific angular distributions, which were used to extract partial-wave amplitudes. In particular, the energy region b

The impact of Wnt5a signaling and tumor associated macrophages in breast cancer

Breast cancer is the most common cancer among women worldwide with approximately 1.150.000 new cases each year and accounting for over 400.000 deaths per year. The main cause of death for women with breast cancer is secondary tumors. Downregulation of Wnt5a in primary ductal breast cancer has been correlated with poor outcome and higher tumor grade and found to be an independent predictor of recu

Nursing staff competence, work strain, stress and satisfaction in elderly care: a comparison of home-based care and nursing homes

Aims. The aims of this study were to: (1) compare older people care nursing staff's perceptions of their competence, work strain and work satisfaction in nursing homes and home-based care; and (2) to examine determinants of work satisfaction in both care settings. Background. The shift in older people care from hospitals to community-based facilities and home care has had implications for nursing

“Den katolska faran” : Antikatolicismen och den svenska nationella identiteten i ett nordiskt perspektiv

Under 1800-talet tilltog de antikatolska stämningarna i Europa. Antikatolicismen hämtade sin näring från katolska kyrkans fördömande av såväl protestantismen som den moderna utvecklingen i riktning mot ett sekulärt samhälle. I flera länder utmynnade dessa motsättningar i veritabla sammandrabbningar mellan katolska kyrkan och den av liberala krafter dominerande statsmakten. Man talade om ”kulturkamIn Sweden, as in other Protestant countries, the gradual dismantling of the legislation on com-pulsory religious adherence saw the politicization of religious issues. In this situation, the imagery of the old enemy took on new functions. This was very much the case with the notion of the ‘Catholic danger’, which time and again surfaced in the Swedish media and in parlia-mentary debate. In the 1860

Estimation of mould growth levels on rendered facades based on surface RH and surface temperature measurements

Many façades made with thin rendering on thermal insulation have problems with biological growth. In this study surface temperature and surface RH were monitored over a 20 month period on test house façades with different constructions (thermal inertia), surface color and compass directions. This data were used to test three theoretical indices of biological growth with the aim of indicating the p

Selective induction of inducible nitric oxide synthase in pancreatic islet of rat after an intravenous glucose or intralipid challenge.

Objective: Constant exposure of pancreatic islets to high levels of glucose or free fatty acids can lead to irreversible beta-cell dysfunction, a process referred to as glucotoxicity or lipotoxicity, respectively. In this context a role for nitric oxide generated by pancreatic islet has been suggested. The present investigation examined whether the route of glucose administration, i.e., given oral

Anthropometric factors and risk of endometrial cancer: the European prospective investigation into cancer and nutrition

Objective To examine the association between anthropometry and endometrial cancer, particularly by menopausal status and exogenous hormone use subgroups. Methods Among 223,008 women in the European Prospective Investigation into Cancer and Nutrition (EPIC) study, there were 567 incident endometrial cancer cases during 6.4 years of follow-up. The analysis was performed with Cox proportional hazards

Estimation of parameters in distribution of headways in roundabouts

Estimation of parameters in the distribution of headways in roundabouts is a cumbersome task. Inherent to data employed are temporal variation together with dependence between successive vehicles. This is a consequence of the sampling period and interactions in the roundabouts. The elimination of observations, so as to obtain trend-free samples of independent vehicles, removes too much information