25,414 research outputs found
Therapeutic effects of music therapy on anxiety and quality of life for chronically ill adults with mental illness
Mental Illness impacts many individuals, families and communities. Treatments for chronically mentally ill individuals include a variety of medications and behavioral therapies. Alternative therapies can also help reduce anxiety and improve social behavior. Music therapy has been identified as one method to reduce anxiety, resulting in an increased quality of life. The purpose of this study is to examine the impact of music therapy on social anxiety and quality of life for individuals who are chronically mentally ill. This is a replication of Grocke, Bloch and Castle’s (2009) study. The study is based on Group Music Therapy (Bloch & Crouch, 1985). The anticipated sample will include 500 outpatients being treated in a local mental health facility in MD. The WHOQOLBREF Quality of Life Scale, the Social Interaction Anxiety Scale and the Brief Symptom Inventory will be used to collect data. Semi-structured interviews will also be conducted with focus groups. Findings will provide insight about the impact of music therapy as an alternative treatment to reduce anxiety and improve quality of life for chronically ill individuals.School of NursingThesis (M.S.
A new Monte Carlo code for star cluster simulations: II. Central black hole and stellar collisions
We have recently written a new code to simulate the long term evolution of
spherical clusters of stars. It is based on the pioneering Monte Carlo scheme
proposed by Henon in the 70's. Our code has been devised in the specific goal
to treat dense galactic nuclei. After having described how we treat relaxation
in a first paper, we go on and include further physical ingredients that are
mostly pertinent to galactic nuclei, namely the presence of a central (growing)
black hole (BH) and collisions between MS stars. Stars that venture too close
to the BH are destroyed by the tidal field. This process is a channel to feed
the BH and a way to produce accretion flares. Collisions between stars have
often been proposed as another mechanism to drive stellar matter into the
central BH. To get the best handle on the role of this process in galactic
nuclei, we include it with unpreceded realism through the use of a set of more
than 10000 collision simulations carried out with a SPH (Smoothed Particle
Hydrodynamics) code. Stellar evolution has also been introduced in a simple
way, similar to what has been done in previous dynamical simulations of
galactic nuclei. To ensure that this physics is correctly simulated, we
realized a variety of tests whose results are reported here. This unique code,
featuring most important physical processes, allows million particle
simulations, spanning a Hubble time, in a few CPU days on standard personal
computers and provides a wealth of data only rivalized by N-body simulations.Comment: 32 pages, 19 figures. Slightly shortened and clarified following
referee's suggestions. Accepted for publication in A&A. Version with high
quality figures available at
http://obswww.unige.ch/~freitag/papers/article_MC2.ps.g
Formation and composition of planets around very low mass stars
The recent detection of planets around very low mass stars raises the
question of the formation, composition and potential habitability of these
objects. We use planetary system formation models to infer the properties, in
particular their radius distribution and water content, of planets that may
form around stars ten times less massive than the Sun. Our planetary system
formation and composition models take into account the structure and evolution
of the protoplanetary disk, the planetary mass growth by accretion of solids
and gas, as well as planet-planet, planet-star and planet-disk interactions. We
show that planets can form at small orbital period in orbit about low mass
stars. We show that the radius of the planets is peaked at about 1 rearth and
that they are, in general, volatile rich especially if proto-planetary discs
orbiting this type of stars are long-lived. Close-in planets orbiting low-mass
stars similar in terms of mass and radius to the ones recently detected can be
formed within the framework of the core accretion paradigm as modeled here. The
properties of protoplanetary disks, and their correlation with the stellar
type, are key to understand their composition.Comment: to appear in Astronomy and Astrophysics Letter
Asynchronously Replicated Shared Workspaces for a Multi-Media Annotation Service over Internet
This paper describes a world wide collaboration system through multimedia Post-its (user generated annotations). DIANE is a service to create multimedia annotations to every application output on the computer, as well as to existing multimedia annotations. Users collaborate by registering multimedia documents and user generated annotation in shared workspaces. However, DIANE only allows effective participation in a shared workspace over a high performance network (ATM, fast Ethernet) since it deals with large multimedia object. When only slow or unreliable connections are available between a DIANE terminal and server, useful work becomes impossible. To overcome these restrictions we need to replicate DIANE servers so that users do not suffer degradation in the quality of service. We use the asynchronous replication service ODIN to replicate the shared workspaces to every interested site in a transparent way to users. ODIN provides a cost-effective object replication by building a dynamic virtual network over Internet. The topology of this virtual network optimizes the use of network resources while it satisfies the changing requirements of the users
Managerial versus Production Wages: Offshoring, Country Size and Endowments
In this paper, we explore the role of trade in differentiated final goods as well offshoring of tasks for inequality both within and between countries. We emphasize the distinction between managerial and production labor. Production labor is assumed to be a variable input composed of tradable tasks, while managerial labor is a fixed, non-tradable input. We use a 2-country model recently developed by Grossman & Rossi-Hansberg (2010b) that highlights trade in production task, driven by Marshallian economies of scale. We analyze country size and relative endowment effects on the managerial wage premium as well as on international inequality measured in income per head. We compare these effects in a world where trade is restricted to differentiated final goods with a world with trade in both final goods and production tasks.offshoring, economies of scale, income distribution, international inequality
Image readout device with electronically variable spatial resolution
An invention relating to the use of a standing acoustic wave charge storage device as an image readout device is described. A frequency f sub 1 was applied to the storage transfer device to create a traveling electric field in the device in one direction along a straight line. A second frequency f sub 2 was applied to the charge transfer device to create a traveling electric field opposite to the first traveling electric field. A standing wave was created. When an image was focused on the charge transfer device, light was stored in the wells of the standing wave. When the frequency f sub 2 is removed from the device, the standing wave tends to break up and the charges stored move to an electrode connected to an output terminal and to a utilization device where the received charges represent the image on the surface of the charge transfer device along a projection of said straight line
Migration and giant planet formation
We extend the core-accretion model of giant gaseous planets by Pollack et al.
(\cite{P96}) to include migration, disc evolution and gap formation. Starting
with a core of a fraction of an Earth's mass located at 8 AU, we end our
simulation with the onset of runaway gas accretion when the planet is at 5.5 AU
1 Myr later. This timescale is about a factor ten shorter than the one found by
Pollack et al. (\cite{P96}) even though the disc was less massive initially and
viscously evolving. Other initial conditions can lead to even shorter
timescales. The reason for this speed-up is found to result from the fact that
a moving planet does not deplete its feeding zone to the extend of a static
planet. Thus, the uncomfortably long formation timescale associated with the
core-accretion scenario can be considerably reduced and brought in much better
agreement with the typical disc lifetimes inferred from observations of young
circumstellar discs.Comment: 9 pages, 2 figures, published in A&A Letter
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