Transport of a quantum degenerate heteronuclear Bose-Fermi mixture in a harmonic trap

We report on the transport of mixed quantum degenerate gases of bosonic 87Rb and fermionic 40K in a harmonic potential provided by a modified QUIC trap. The samples are transported over a distance of 6 mm to the geometric center of the anti-Helmholtz coils of the QUIC trap. This transport mechanism was implemented by a small modification of the QUIC trap and is free of losses and heating. It allows all experiments using QUIC traps to use the highly homogeneous magnetic fields that can be created in the center of a QUIC trap and improves the optical access to the atoms, e.g., for experiments with optical lattices. This mechanism may be cascaded to cover even larger distances for applications with quantum degenerate samples.Comment: 7 pages, 8 figure

A new analysis of πK\pi K scattering from Roy and Steiner type equations

With the aim of generating new constraints on the OZI suppressed couplings of chiral perturbation theory a set of six equations of the Roy and Steiner type for the $S$- and $P$-waves of the $\pi K$ scattering amplitudes is derived. The range of validity and the multiplicity of the solutions are discussed. Precise numerical solutions are obtained in the range E\lapprox 1 GeV which make use as input, for the first time, of the most accurate experimental data available at $E > 1$ GeV for both $\pi K\to\pi K$ and $\pi\pi\to K\bar{K}$ amplitudes. Our main result is the determination of a narrow allowed region for the two S-wave scattering lengths. Present experimental data below 1 GeV are found to be in generally poor agreement with our results. A set of threshold expansion parameters, as well as sub-threshold parameters are computed. For the latter, matching with the SU(3) chiral expansion at NLO is performed.Comment: 45 pages, 17 figures. v2: New title, minor correction

Measurement of the Strong Coupling alpha s from Four-Jet Observables in e+e- Annihilation

Data from e+e- annihilation into hadrons at centre-of-mass energies between 91 GeV and 209 GeV collected with the OPAL detector at LEP, are used to study the four-jet rate as a function of the Durham algorithm resolution parameter ycut. The four-jet rate is compared to next-to-leading order calculations that include the resummation of large logarithms. The strong coupling measured from the four-jet rate is alphas(Mz0)= 0.1182+-0.0003(stat.)+-0.0015(exp.)+-0.0011(had.)+-0.0012(scale)+-0.0013(mass) in agreement with the world average. Next-to-leading order fits to the D-parameter and thrust minor event-shape observables are also performed for the first time. We find consistent results, but with significantly larger theoretical uncertainties.Comment: 25 pages, 15 figures, Submitted to Euro. Phys. J.

Negotiating time. The significance of timing in ending inpatient work

This paper discusses work with young people during their stay on an NHS psychiatric inpatient unit, especially focusing on the end of treatment and the appropriate timing of discharge into the community. When approaching the end of an admission, various factors are considered that seem particularly relevant to the decision of when a young person may be ready to leave and cope with the transition back to life outside the unit. Indications of medical stability, in patients where this has been an issue, is a factor of prime importance. Other important factors include family functioning; the availability of adequate ongoing local CAMHS support for the child and family; suitable school provision; and the identity of the child within a peer group. The reality of NHS resources and the demand for inpatient beds is another pressing consideration. The young person's own motivation emerges as crucial at this stage - towards the end of treatment - not only in terms of what is said, and therefore evident verbally, but also through signs of internal shifts in the child that indicate a capacity to re-engage with life outside in a lasting way. Decisions about when to stop are taken with all this in mind and when the decision does not seem straightforward, it can provoke considerable anxiety in the multi-disciplinary team. Clinical material from psychotherapy with a young adolescent boy with anorexia nervosa is used to illustrate some of the dilemmas

Results of a study of bivalve molluscs of central Asia = Итоги исследования двустворчатых моллюсков Центральной Азии

The article is devoted to many years’ research (1972 - 2001) of bivalve mollusks of Central Asia. It is established that it is inhabited by 51 species of molluscs belonging to 16 genera, 8 families and three orders. Among them 13 species and 1 subgenus are described as new for science. Their ecology, distribution by basin types, byotopes, life forms and economic significance have been studied

Social and environmental factors influencing in-prison drug use

Purpose – There is a strong political imperative to regard the prison as a key social setting for health promotion, but evidence indicates that drug misuse continues to be a significant issue for many prisoners. This paper aims to examine the social and environmental factors within the setting that influence individuals' drug taking. Design/methodology/approach – Focus groups and interviews were conducted with prisoners and staff in three male training prisons in England. The sampling approach endeavoured to gain “maximum variation” so that a broad based understanding of the prison setting could be gathered. The data were analysed in accordance with Attride-Stirling's thematic network approach. Findings – The findings suggest a myriad of social and environmental factors influencing drug use. While staff recognised the scale of the drugs problem, they struggled to cope with creative inmates who were not perturbed by taking risks to gain their supplies. Fellow prisoners played a major role in individuals' decision making, as did the boredom of institutional life and Mandatory Drug Testing (MDT) policies within the institutions. Practical implications – Drug treatment is an essential component of prison healthcare, but it only forms a small part of creating a health-promoting setting. If the health-promoting prison is to be fully realised, a more radical, upstream and holistic outlook is required. Originality/value – The settings approach is an important theoretical and practical approach in health promotion. In comparison to other settings (such as schools), however, there has been limited research on the prison as a health-promoting environment

Are Airlines' Price Setting Strategies Different?

Using a sample of fare quotes for non-stop travel from New York to London, this paper investigates the dynamics of offered fares as the departure date nears. We find that the general trend is toward fare increase at an accelerated rate as the departure date approaches. Clear differences in price-setting strategies among the carriers competing on a particular route are documented

Why Do We Study Soil

The purpose of this resource is to introduce students to the importance of soil. In the first activity, students generate a list of why soils are important. In the second activity, students are asked to describe the five factors that form a unique soil profile and to explore these concepts. In the third activity, students are shown a demonstration of how much soil there is on Earth that is available for human use. Educational levels: Primary elementary, Intermediate elementary, Middle school, High school