Role of phi decays for K- yields in relativistic heavy-ion collisions

The production of strange mesons in collisions of Ar+KCl at a kinetic beam energy of 1.756 AGeV is studied within a transport model of Boltzmann-\"Uhling-Uhlenbeck (BUU) type. In particular, $\phi, K^+$ and $K^-$ yields and spectra are compared to the data mesured recently by the HADES collaboration and the $\phi$ yield measured previously by the FOPI collaboration. Our results are in agreement with these data thus presenting an interpretation of the subleading role of $\phi$ decays into $K^-$'s and confirming the importance of the strangeness-exchange channels for $K^-$ production.Comment: 24 pages, 19 figure

The Behaviour of the System Gelatin - Ferric Chloride -Neutral Electrolyte - Hydrochloric Acid or Sodium Hydroxide in an Aqueous Medium.* I. Phenomenology and the Method of Investigation by Division into Simpler Systems

The behaviour of the four-component system: gelatin-FeC13 - NaCl (neutral electrolyte) - pH (HCl or NaOH) was investigated. The regions of the gel formation, of the precipitation of brown Fe(OH)3 flocks , of flocks and gel appearing together, and of the clear solution, were investigated and represented on a threedimensional diagram (Fig. 13.). The gelatin concentration was kept at the constant value of 0.4250/o, but the concentra tions of FeCl3, the concentrations of NaCl and the pH values were varied and used as coordinates on Fig. 13

The Behaviour of the System Gelatin - Ferric Chloride -Neutral Electrolyte - Hydrochloric Acid or Sodium Hydroxide in an Aqueous Medium.* I. Phenomenology and the Method of Investigation by Division into Simpler Systems

The behaviour of the four-component system: gelatin-FeC13 - NaCl (neutral electrolyte) - pH (HCl or NaOH) was investigated. The regions of the gel formation, of the precipitation of brown Fe(OH)3 flocks , of flocks and gel appearing together, and of the clear solution, were investigated and represented on a threedimensional diagram (Fig. 13.). The gelatin concentration was kept at the constant value of 0.4250/o, but the concentra tions of FeCl3, the concentrations of NaCl and the pH values were varied and used as coordinates on Fig. 13

Thin-film GaAs photovoltaic solar energy cells Final report

Thin film gallium arsenide photovoltaic solar cell

Life at high Deborah number

In many biological systems, microorganisms swim through complex polymeric fluids, and usually deform the medium at a rate faster than the inverse fluid relaxation time. We address the basic properties of such life at high Deborah number analytically by considering the small-amplitude swimming of a body in an arbitrary complex fluid. Using asymptotic analysis and differential geometry, we show that for a given swimming gait, the time-averaged leading-order swimming kinematics of the body can be expressed as an integral equation on the solution to a series of simpler Newtonian problems. We then use our results to demonstrate that Purcell's scallop theorem, which states that time-reversible body motion cannot be used for locomotion in a Newtonian fluid, breaks down in polymeric fluid environments

Thin film GaAs photovoltaic solar energy cells

Fabrication process for thin film gallium arsenide photovoltaic solar energy cell

Fatal lymphoproliferation and acute monocytic leukemia-like disease following infectious mononucleosis in the elderly

Three elderly patients are reported, in whom serologically confirmed recent infectious mononucleosis is followed by fatal lymphoproliferation (case 1), by acute monocytic leukemia (case 2), and by acute probably monocytic leukemia (case 3)

Large-scale albuminuria screen for nephropathy models in chemically induced mouse mutants

Background/Aim: Phenotype-driven screening of a great pool of randomly mutant mice and subsequent selection of animals showing symptoms equivalent to human kidney diseases may result in the generation of novel suitable models for the study of the pathomechanisms and the identification of genes involved in kidney dysfunction. Methods: We carried out a large-scale analysis of ethylnitrosourea (ENU)-induced mouse mutants for albuminuria by using qualitative SDS-polyacrylamide gel electrophoresis. Results: The primary albuminuria screen preceded the comprehensive phenotypic mutation analysis in a part of the mice of the Munich ENU project to avoid loss of mutant animals as a consequence of prolonged suffering from severe nephropathy. The primary screen detected six confirmed phenotypic variants in 2,011 G1 animals screened for dominant mutations and no variant in 48 G3 pedigrees screened for recessive mutations. Further breeding experiments resulted in two lines showing a low phenotypic penetrance of albuminuria. The secondary albuminuria screen was carried out in mutant lines which were established in the Munich ENU project without preceding primary albuminuria analysis. Two lines showing increased plasma urea levels were chosen to clarify if severe kidney lesions are involved in the abnormal phenotype. This analysis revealed severe albuminuria in mice which are affected by a recessive mutation leading to increased plasma urea and cholesterol levels. Conclusion: Thus, the phenotypic selection of ENU-induced mutants according to the parameter proteinuria in principle demonstrates the feasibility to identify nephropathy phenotypes in ENU-mutagenized mice. Copyright (C) 2005 S. Karger AG, Basel