1,268 research outputs found
Mountain lions wolves and bears: Detangling the issues surrounding predator conservation in the West
6Jahre FertiPROTEKT: Eine Zwischenbilanz
Zusammenfassung: Das Netzwerk FertiPROTEKT wurde im Jahr2006 mit dem Ziel gegründet, die Expertise universitärer Zentren im Bereich der Fertilitätsprotektion zusammenzuführen und im deutschsprachigen Raum eine klinisch effektive, risikominimierte und flächendeckende Versorgung mit fertilitätsprotektiven Techniken zu ermöglichen. Zu diesem Zweck wurden u.a. regelmäßige Fortbildungsveranstaltungen ausgerichtet, zentrale Kryobanken zur Konservierung von Ovarialgewebe ausgebaut und Behandlungs- sowie Komplikationsregister erstellt. Mehr als 3000Beratungen, 1000Kryokonservierungen von Ovarialgewebe, 1.000.000Zugriffe auf die 2-sprachige Website des Netzwerks und die Entwicklung von Behandlungsempfehlungen in den 6Jahren seit der Gründung zeigen eindrücklich, dass sich das Netzwerk erfolgreich entwickelt hat und inzwischen das größte seiner Art ist. Allerdings wird die große Herausforderung der nächsten Jahre der Nachweis sein, dass die fertilitätsprotektiven Aktivitäten zu erfolgreichen Schwangerschaften und Geburten führe
Advanced manned space flight simulation and training: An investigation of simulation host computer system concepts
The findings of a preliminary investigation by Southwest Research Institute (SwRI) in simulation host computer concepts is presented. It is designed to aid NASA in evaluating simulation technologies for use in spaceflight training. The focus of the investigation is on the next generation of space simulation systems that will be utilized in training personnel for Space Station Freedom operations. SwRI concludes that NASA should pursue a distributed simulation host computer system architecture for the Space Station Training Facility (SSTF) rather than a centralized mainframe based arrangement. A distributed system offers many advantages and is seen by SwRI as the only architecture that will allow NASA to achieve established functional goals and operational objectives over the life of the Space Station Freedom program. Several distributed, parallel computing systems are available today that offer real-time capabilities for time critical, man-in-the-loop simulation. These systems are flexible in terms of connectivity and configurability, and are easily scaled to meet increasing demands for more computing power
Transverse beam tail shaping in HERA-p by means of tune modulation
The HERA-B experiment utilizes an internal wire target in the halo of the stored proton beam in order to study CP violation. As operational experience shows, interaction rates tend to be extremely sensitive to tiny orbit jitter amplitudes. In order to stabilize these interaction rates, various methods have been studied to increase diffusion in the transverse proton beam tails without affecting the luminosity at the electron-proton collider experiments ZEUS and H1. Tune modulation was found to be a promising method for this task. The present status of these experiments willbe reported
Designing for Ballet Classes: Identifying and Mitigating Communication Challenges Between Dancers and Teachers
Dancer-teacher communication in a ballet class can be challenging: ballet is one of the most complex forms of movements, and learning happens through multi-faceted interactions with studio tools (mirror, barre, and floor) and the teacher. We conducted an interview-based qualitative study with seven ballet teachers and six dancers followed by an open-coded analysis to explore the communication challenges that arise while teaching and learning in the ballet studio. We identified key communication issues, including adapting to multi-level dancer expertise, transmitting and realigning development goals, providing personalized corrections and feedback, maintaining the state of flow, and communicating how to properly use tools in the environment. We discuss design implications for crafting technological interventions aimed at mitigating these communication challenges
Comparison of the Spherical Averaged Pseudopotential Model with the Stabilized Jellium Model
We compare Kohn-Sham results (density, cohesive energy, size and effect of
charging) of the Spherical Averaged Pseudopotential Model with the Stabilized
Jellium Model for clusters of sodium and aluminum with less than 20 atoms. We
find that the Stabilized Jellium Model, although conceptually and practically
more simple, gives better results for the cohesive energy and the elastic
stiffness. We use the Local Density Approximation as well as the Generalized
Gradient Approximation to the exchange and correlation energies.Comment: 13 pages, latex, 8 figures, compressed postscript version available
at http://www.fis.uc.pt/~vieir
Facilities for the Energy Frontier of Nuclear Physics
The Relativistic Heavy Ion Collider at BNL has been exploring the energy
frontier of nuclear physics since 2001. Its performance, flexibility and
continued innovative upgrading can sustain its physics output for years to
come. Now, the Large Hadron Collider at CERN is about to extend the frontier
energy of laboratory nuclear collisions by more than an order of magnitude. In
the coming years, its physics reach will evolve towards still higher energy,
luminosity and varying collision species, within performance bounds set by
accelerator technology and by nuclear physics itself. Complementary high-energy
facilities will include fixed-target collisions at the CERN SPS, the FAIR
complex at GSI and possible electron-ion colliders based on CEBAF at JLAB, RHIC
at BNL or the LHC at CERN.Comment: Invited talk at the International Nuclear Physics Conference,
Vancouver, Canada, 4-9 July 2010, to be published in Journal of Physics:
Conference Series. http://inpc2010.triumf.ca
P-055. Hardness of the zona pellucida at different stages of mouse embryonic development in vitro and in vivo as measured indirectly by a 1.48 ÎĽm diode laser
Observation of coasting beam at the HERA Proton--Ring
We present data collected with the HERA-B wire target which prove the
existence of coasting beam at the HERA proton storage ring. The coasting beam
is inherently produced by the proton machine operation and is not dominated by
target effects.Comment: 17 pages (Latex), 12 figures (Enc. Postscript
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