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Cleavable ErbB4 isoform in estrogen receptor-regulated growth of breast cancer cells

ErbB1 and ErbB2 receptors are well-characterized targets for anticancer drugs, but the clinical relevance of the related ErbB4 receptor is unknown. Here, we have assessed the clinical significance of the proteolytically cleavable ErbB4 isoforms in breast cancer patients and investigated their functions in vitro. The expression of transcripts encoding the cleavable ErbB4 isoforms associated with es

Homogenization of the Maxwell equations in an anisotropic material

This paper contains an overview of the homogenization of anisotropic materials at fixed frequency using the concept of two-scaled convergence. The homogenized electric and magnetic parameters, the relative permittivity, and the relative permeability are found by suitable averages of the solution of a local problem in the unit cell. A comparison between the exact homogenization method presented in

Enkätmetodik - en svår konst

Construction of questionnaires is not as easy as it first may seem. There are several issues to consider. This to avoid problems later in the analysis of the results. This article aim at presenting a selection of possible methodology problems related to the construction and use of questionnaires.

Visual field structure in the Empress Leilia, Asterocampa leilia (Lepidoptera, Nymphalidae): dimensions and regional variation in acuity

Male Empress Leilia butterflies (Asterocampa leilia) use a sit-and-wait tactic to locate mates. To see how vision might influence male behavior, we studied the morphology, optics, and receptor physiology of their eyes and found the following. (1) Each eye's visual field is approximately hemispherical with at most a 10degrees overlap in the fields of the eyes. There are no large sexual differences

Metoder för risk- och sårbarhetsanalys ur ett systemperspektiv

An operational definition of vulnerability is proposed. The definition is used to describe and analyse different methods for risk and vulnerability analysis. Several problems related to analysing the vulnerability of a complex sociotechnical system to a specific perturbation are identified and discussed. Suggestions of how risk- and vulnerability analyses can be performed for such systems are pres

Neuroendocrine pathogenesis in adenocarcinoma of the prostate

BACKGROUND: In the prostate, the importance of sex hormones for its normal development and function is well known. However, it has been proposed that various neuroendocrine (NE) hormones and growth factors may be involved in the pathogenesis of prostatic carcinoma (CaP). Neuroendocrine differentiation appears to be associated with tumour progression and the androgen-independent state, for which th

CO2 utilization options .2. Assessment of dimethyl carbonate production

In this paper, the potential to reduce CO2 emissions from dimethyl carbonate production by switching from the traditional phosgene-based production to a urea-based CO2 utilization process is assessed. The total CO2 emission for each process is estimated, including emissions related to the carbon content of the products, energy consumption in the production process, and energy consumption in the pr

High-intensity laser-driven proton acceleration: influence of pulse contrast

Proton acceleration from the interaction of ultra-short laser pulses with thin foil targets at intensities greater than 10(18) W cm(-2) is discussed. An overview of the physical processes giving rise to the generation of protons with multi-MeV energies, in well defined beams with excellent spatial quality, is presented. Specifically, the discussion centres on the influence of laser pulse contrast

Gating of cutaneous input to cerebellar climbing fibres during a reaching task in the cat

1. Task-dependent modulation of cutaneous input to climbing fibres projecting to the C1, C2 and C3 zones in the cerebellar paravermal lobule V was investigated in awake cats during performance of a reaching task. 2. Climbing fibre responses resulting from low intensity (non-noxious) electrical stimulation of the ipsilateral superficial radial nerve were recorded as extracellular field potentials i

A detrimental effect of emotion on picture recollection

Several studies indicate that the recollection process, as assessed by the Remember-Know paradigm (Tulving, 1985) is enhanced for emotional stimuli as compared with neutral ones. The goal of this study was to assess the influence of emotion on recollection process, applying the Processes Dissociation Procedure (PDP; Jacoby, 1991) on emotional and neutral pictures. A total of 63 participants (aged

Triphenylphosphine-substituted selenido and sulfido clusters of osmium derived from Ph3P=Se or Ph3P=S

Cleavage of P=Se bonds occurs readily in the room-temperature treatment of [Os-3(CO) (10)(MeCN)(2)] with Ph3P=Se to give three new compounds, [Os-3(mu(3)-Se)(2)(CO)(8)(PPh3)] (2), [Os-3(mu(3)-Se)( mu(3)-CO)(CO)(7)(PPh3)(2)] (5) and [Os3(mu-OH)(2)(CO)(8)(PPh3)(2)] (6), respectively, and three known compounds, [Os-3(mu(3)-Se)(2)(CO)(9)] (1), [Os-3(mu(3)-Se)(mu-CO)(2)(CO)(7)(PPh3)] (3), and 1,2-[Os-3

Search for Neutral MSSM Higgs Bosons at LEP

The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four collaborations are statistically combined and examined for their consistency with the background hypothesis and with a possible Higgs boson signal.

Operator-centred local error management in air traffic control

Introduction: A large number of air traffic control occurrences take place without resulting in loss of separation between aircraft. Unfortunately such occurrences are seldom reported and therefore not used for disclosing system weaknesses, Such as inappropriate methods and procedures. The ATCC (Air Traffic Control Centre) Malmoe made a trial with local reporting of "learning occurrences". The tri

Coexisting normal and triaxial superdeformed structures in Lu-165

High-spin states in Lu-165 were populated in the La-139(Si-30, 4n) reaction at a beam energy of 152 MeV and gamma-ray coincidences were measured with the EUROBALL spectrometer array. Nine new rotational bands were discovered, known band structures were considerably extended and many inter-band transitions were found. Structures with normal deformation coexist with bands associated with the strongl

Selection of Resistant Streptococcus pneumoniae during Penicillin Treatment In Vitro and in Three Animal Models.

Pharmacokinetic (PK) and pharmacodynamic (PD) properties for the selection of resistant pneumococci were studied by using three strains of the same serotype (6B) for mixed-culture infection in time-kill experiments in vitro and in three different animal models, the mouse peritonitis, the mouse thigh, and the rabbit tissue cage models. Treatment regimens with penicillin were designed to give a wide

Penicillin-resistant pneumococci in Sweden 1997-2003: Increased multiresistance despite stable prevalence and decreased antibiotic use

Antimicrobial resistance patterns and capsular groups of penicillin-resistant Streptococcus pneumoniae (PRP; MIC penicillin G >= 0.5 mg/ml) in Sweden between 1997 and 2003 were described, and trends in resistance and antibiotic sales during the same period were compared. The most common serogroups were in descending order 9, 19, 14, 23, and 6. Despite a low and stable annual PRP rate (proportion o