6,492 research outputs found
A morphological and molecular description of a new Teleopsis species (Diptera: Diopsidae) from Thailand
A new species of Teleopsis (Diptera, Diopsidae) from Chiang Mai, Thailand is described and illustrated. Teleopsis thaii Földvári & Carr is shown to be a member of a species group, termed the dalmanni species group, along with three previously described species. Presented here are a morphological description of T. thaii and an allometric comparison of the species with other members of the Teleopsis genus. We also present multi-gene phylogenetic analyses to highlight the possible position of T. thaii within the dalmanni species group
Report of the 2015 British Society for Protist Biology Spring Meeting
The 2015 British Society for Protist Biology annual Spring
Meeting was held at the University of Huddersfi eld on the
15-17th April. The meeting comprised two symposia and two
sessions of contributed papers. The symposium on Experimental
Evolution in Protists was organized by Ewan Minter (University
of York) and The Origins of Multicellularity session was organized
by Martin Carr (University of Huddersfi eld). The two
symposia covered a variety of topics, with highlights including
the use of protists to study the potential future effects of climate
change, as well as the genetic changes that occurred in the
genomes of the unicellular ancestors of animals. The programme
included 13 invited speakers and seven contributed papers
A Description and Comparison of Variables That Influence Recidivism of Selected Juveniles.
Nationally, over $1.6 billion is spent incarcerating juveniles. Prevention, rather than correction is needed to reduce these costs. The cost in human lives exceeds the 56,000 incarcerated juveniles. It touches more than those who commit the offense. Victims, families of victims and families of the convicted juvenile also pay a price to one degree or another. The purpose of this study was to identify and describe variables which may impact recidivism rates of selected juveniles who were charged and have arrest records on file. The research was based upon East Baton Rouge Parish, Louisiana, juvenile arrest files from 1981 through 1992. Variables which were identified include Age at First Offense, Educational Level, Gender, Number of Times Charged, Parental Influence and Race. The model developed by the Multiple Regression Analysis returned the following: Education level explained 17.22%, Age at First Offense explained an additional 4.75% with Gender explaining 2.58% and Race explaining only 1.98% of the total variance. Formal education does play a part in recidivism. The more academically educated the juvenile, the less incidence of court referrals are documented. Although juvenile offenders who participated in Vocational Education reported less incidence of recidivism than Alternative Education, we must strive to keep our young people in school. Both Age and Educational Level at the time of the First Offense do indicate that the younger the juvenile is, the more likely recidivism is to occur. Procedures, forms, and rationale for analysis is included to assist others to develop like research projects
Effective Josephson dynamics in resonantly driven Bose-Einstein condensates
We show that the orbital Josephson effect appears in a wide range of driven
atomic Bose-Einstein condensed systems, including quantum ratchets, double
wells and box potentials. We use three separate numerical methods:
Gross-Pitaevskii equation, exact diagonalization of the few-mode problem, and
the Multi-Configurational Time-Dependent Hartree for Bosons algorithm. We
establish the limits of mean-field and few-mode descriptions, demonstrating
that they represent the full many-body dynamics to high accuracy in the weak
driving limit. Among other quantum measures, we compute the instantaneous
particle current and the occupation of natural orbitals. We explore four
separate dynamical regimes, the Rabi limit, chaos, the critical point, and
self-trapping; a favorable comparison is found even in the regimes of dynamical
instabilities or macroscopic quantum self-trapping. Finally, we present an
extension of the (t,t')-formalism to general time-periodic equations of motion,
which permits a systematic description of the long-time dynamics of resonantly
driven many-body systems, including those relevant to the orbital Josephson
effect.Comment: 14 pages, 9 figure
Tanks, Chauffeurs and Backseat Drivers: Competence in MMORPGs
In this paper learning and competence in the MMORPG World of Warcraft are explored. In order to facilitate movement between in-game and the real-world contexts of play, data was collected from couples who play the game together while sharing real space. Through the collection and analysis of interview data the authors develop a framework for the examination of learning practices. The ways in which players acquire and assess skills, balance different skill levels, and accommodate different play preferences, are discussed. It is argued that competence in MMORPGs is complex, variously constituted and assessed by players in diverse ways.  
Limited availability of cardiac rehabilitation for heart failure patients in the United Kingdom: findings from a national survey
Background: Participation of patients with heart failure in cardiac rehabilitation in the UK is low. This study investigated the availability of cardiac rehabilitation services for patients with heart failure in the UK and the views of service coordinators on ideal service models. Design: Our study was a cross-sectional national postal survey that was mailed to 342 service coordinators in the UK between April and June 2009. Methods: We developed a 38-item questionnaire to survey all cardiac rehabilitation service coordinators on theNational Audit of Cardiac Rehabilitation register in the UK in 2009. Results: The survey response rate was 71% (244/342). Forty three per cent (105/244) of coordinators did not accept patients with heart failure to their cardiac rehabilitation services. Most coordinators who did accept patients with heart failure offered their services to patients with a variety of cardiac conditions, though referral criteria and models of care varied widely. Services inconsistently used New York Heart Association classes and left ventricular ejection fraction measures to select patients. Few offered separate dedicated heart failure programmes (14%; 33/244) but where these existed they ran for longer than programmes which included patients with heart failure alongside other cardiac patients (10.9 vs 8.5 weeks; F=4.04; p=0.019). Few offered home-based options for patients with heart failure (11%; 27/244). Coordinators accepting patients with heart failure to their cardiac rehabilitation services tended to agree that patients with heart failure should be included in services alongside other cardiac patients (X2=6.2; p=0.013). Conclusions: There is limited access for patients with heart failure to cardiac rehabilitation in the UK. Local policies on referral and selection criteria differ and reflect coordinators views rather than clinical guidance. © The European Society of Cardiology 2013 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav
Many-body Quantum Chaos and Entanglement in a Quantum Ratchet
We uncover signatures of quantum chaos in the many-body dynamics of a
Bose-Einstein condensate-based quantum ratchet in a toroidal trap. We propose
measures including entanglement, condensate depletion, and spreading over a
fixed basis in many-body Hilbert space which quantitatively identify the region
in which quantum chaotic many-body dynamics occurs, where random matrix theory
is limited or inaccessible. With these tools we show that many-body quantum
chaos is neither highly entangled nor delocalized in the Hilbert space,
contrary to conventionally expected signatures of quantum chaos.Comment: 6 pages, 3 figures. 1 tabl
New knowledge for advancing practice in pain management
This chapter contains sections titled: Introduction Advancing practice in pain management Conclusions Reference
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