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Surface chemistry of TiCl4 on clean and hydrogen modified W(110): identification of surface intermediates

The adsorption and decomposition of titanium tetrachloride (TiCl4) on W(110) were studied with high-resolution core level photoelectron spectroscopy. At least two stable intermediates are formed along the pathway to TiCl4 decomposition: TiCl4(a), which is stable up to 300 K, and TiCl3(a), which is stable up to 500 K. Successive adsorption at 80 K shows that the TiCl4() species forms in the presenc

Gråtens världar. Perspektiv på mäns tårar.

This study, based on interviews with army officers, focuses on crying as an action, creating meaning in our interpretation of the world. The discourse of male crying includes the image of a man wanting to express himself emotionally, but unable to because of the traditional ideal of self-control.

The dUTPases from herpes simplex virus type 1 and mouse mammary tumour virus are less specific than the Escherichia coli enzyme

The enzyme dUTPase catalyses the hydrolysis of dUTP to dUMP and pyrophosphate, thereby suppressing incorporation of uracil into DNA and providing a pool of dUMP, the precursor of dTTP. Hydrolysis of other nucleotides similar in structure to dUTP would conceivably be physiologically detrimental and high specificity of the reaction seems to be necessary. In this work, we characterize the substrate s

Etik och känslor : en empirisk studie av skuld- och medkänslor hos gymnasieelever – en prövning av Ortonys teori

Popular Abstract in SwedishEn del av Ortonys teorimodell angående den kognitiva strukturen hos emotioner testades på svenska gymnasieelever. Den del av teorin som användes i föreliggande studie handlade om de emotioner som tillskrivs den som utfört s.k. orätta handlingar. De eventuella känslor som man får när man utfört en orätt handling kallar Ortony för "self reproach" emotioner. Detta begrepp sThe purpose of this study was to test parts of Ortony's theoretical model relating to the cognitive structure of emotions in Swedish upper secondary school students. That part of the model, which was appropriate for the present study, deals with emotions attributed to the person who has perpetrated what is referred to as blameworthy actions. Ortony calls the possible emotions that you experience w

Binding of monoclonal IgM rheumatoid factor to streptococci via the antibody combining site

Radiolabelled monoclonal IgM rheumatoid factors, four from patients with type II essential cryoglobulinaemia and one originating from a patient with rheumatoid arthritis, were tested for binding to group A, B, C and G streptococci and Escherichia coli. Two of the preparations exhibited different binding patterns for the streptococci, whereas the remaining three were not reactive. The binding of on

Cages in tandem: Management control, social identity, and identification in a knowledge-intensive firm

Developments in organization studies downplay the role of bureaucracy in favour of more flexible arrangements and forms of organizational control, including socio-ideological control. Corporate culture and regulated social identities are assumed to provide means for the integration and orchestration of work. Knowledge-intensive firms, which typically draw heavily upon socio-ideological modes of co

Basic science of peripheral nerve repair: Wallerian degeneration/growth cone

Trauma to a peripheral nerve trunk is a complex injury because it involves not only repair processes locally at the peripheral level, but it also engages repair and compensation mechanisms at central levels. The main actor is the fascinating and unique neuron with its supporting cells, which consist mainly of Schwann cells. In the neuron and in the Schwann cells, intracellular signaling mechanisms

Nonparametric estimation of mixing densities for discrete distributions

By a mixture density is meant a density of the form pi(mu) (.) = f pi(theta) (.) x mu(d theta), where (pi(theta))(theta Theta is an element of) is a family of probability densities and mu is a probability measure on Theta. We consider the problem of identifying the unknown part of this model, the mixing distribution A, from a finite sample of independent observations from pi(mu). Assuming that the

Predictive factors of developing diabetes mellitus in women with gestational diabetes.

BACKGROUND: To investigate which factors during gestational diabetes pregnancies correlate with the risk of developing impaired glucose tolerance or diabetes 1 year postpartum and to compare this risk in women with gestational diabetes and women with a normal oral glucose tolerance test during pregnancy. METHODS: Of 315 women with gestational diabetes, defined as a 2-hr blood glucose value of at l

Weak D type 2 is the most prevalent weak D type in Portugal

The weak D phenotype is the most common D variant, with a frequency of 0.2-1% in Caucasian individuals. There are several weak D types, with different frequencies in European countries, which may pose serologic problems and have the potential for alloimmunization. Samples from Portuguese individuals were tested for RhD by two or three distinct monoclonal and oligoclonal antisera, in direct aggluti

Influence of severe hypoglycemia on mitochondrial and plasma membrane function in rat brain

Abstract: Previous experiments have shown that severe hypoglycemia disrupts cerebral energy state in spite of a maintained cerebral oxygen consumption, suggesting uncoupling of oxidative phosphorylation. Other studies have demonstrated that hypoglycemia leads to loss of cerebral cortical phospholipids and phospholipid-bound fatty acids. The objective of the present study was, therefore, to study r

Cryo-TEM of isolated milk fat globule membrane structures in cream

This study has focused on structures formed through the release of lipid membrane material from milk fat globules. The aim of the study was to describe vesicles in the cream plasma and processing-induced vesicular structures in cream and buttermilk. The dairy samples were divided into three fractions through centrifugation, using DO for density control. These fractions were examined using cryogeni

Temporal and spatial variation of hematozoans in Scandinavian willow warblers

We examined temporal and geographical distribution of Haemoproteus sp. and Plasmodium sp. parasites in Swedish willow warblers, Phylloscopus trochilus. Parasite lineages were detected with molecular methods in 556 birds from 41 sites distributed at distances up to 1,500 km. Two mitochondrial lineages of Haemoproteus sp. were detected, WW1 in 56 birds and WW2 in 75 birds, that differed by 5.2% sequ

First Observation of the Nuclei 87Tc and 88Tc

The gamma-decay of excited states in the neutron deficient isotopes Tc-87 and Tc-88 has been observed for the first time. The fusion-evaporation reactions Ni-58(S-32, p2n)Tc-87 and Ni-58(S-32, pn)Tc-88 at 110 MeV, Ca-40(Cr-50, p2n)Tc-87 and Ca-40(Cr-50, pn)Tc-88 at 170 MeV and Ni-58(Ar-36, alpha-pn)Tc-88 at 145 MeV beam energy were used. Unambiguous identification of these nuclei which are populat

The adapter protein APS associates with the multifunctional docking sites Tyr-568 and Tyr-936 in c-Kit.

The adapter protein APS has previously been shown to be involved in recruiting the ubiquitin E3 ligase c-Cbl to the insulin receptor, the platelet-derived growth factor b-receptor and the erythropoietin receptor, leading to increased degradation of the receptors and inhibition of mitogenesis. Here we demonstrate, by use of immobilized synthetic phosphopeptides corresponding to various autophosphor

Stadsbarndom : Om barns vardag i en modern förort

Popular Abstract in Swedish Barns villkor i stadsmiljö är ett viktigt tema för förståelsen av den moderna barndomen. Barn har emellertid sällan tillfrågats om sin syn på stadens miljövillkor. Avhandlingens syfte är sammanfattningsvis: * Att beskriva de sakkunnigas försök att skapa goda uppväxtvillkor för barn i stadsmiljö, utifrån det jag sammanfattande benämner "de för barnen tänkta perspektivenChildren's conditions in urban environments are an important theme for understanding modern childhood, yet children have rarely been asked about their views of urban childhood conditions. The aim of the dissertation is: To describe the experts' attempts to create good conditions for growing up in an urban environment. This is summed up as "perspectives thought out for the children". To investiga