630 research outputs found
Recession as an agent in the restructuring of tourist accommodation
Academic research into economic restructuring in the tourist industry has solely focused on the
strategies adopted by large chain hotel companies and little attention has been paid to the strategies
adopted by small scale, family-run accommodation establishments. This sector is particularly
significant for traditional resort areas in the UK. For example, in Torbay, Devon (as in most
seaside resorts), there is an absence of large chain hotels and small-scale accommodation
establishment pl ay an integral role in the local tourism economy.Consequently, an understanding
of the competitive pressures and restructuring strategies in this sector is essential in maintaining
the long-term health and prosperity of the resort. The aim of this study is therefore to examine
the restructuring process occurring in the hotel industry and, in particular, to focus on the
restructuring strategies in the small-scale accommodation s ector. To do so, this study will draw
on empirical data obtained from a number of sources including a commercial register, holiday
accommodation brochures, planning applications and a major questionnaire survey of all serviced
and self-catering accommodation establishments o perating in Torbay.
This study will show that the restructuring process within the accommodation sector has been
influenced by a combination of factors within the internal and external resort environment,
including free market forces and public sector intervention. Restructuring strategies have
concentrated on the development of ensuite and leisure facilities, although provision has been
influenced by the structural and locational characteristics of accommodatione stablishments. A
review of the entrepreneurial characteristics of the accommodation providers highlights the
complexity of the decision-making process and that business strategy is influenced by highly
personalised and individualistic operating characteristics that are difficult to isolate and analyse.
Therefore, any policy directives to guide the future development of the resort will depend on
dealing with individual managemen strategies and business objectives
Visual cortical plasticity after the termination of the critical period: A review and experimental test
A literature review is presented in which stimulus deprivation amblyopia is discussed. Additionally, the review of literature covers aspects of attentional and motivational effects on stimulus deprivation amblyopia. Although the experimental design originally intended to induce amblyopia in six kittens born June 14, 1992, only two survived to become subjects in the study. The two kittens were monocularly deprived of light stimulation by wearing an opaque contact lens on the right eye during six hours of light exposure per day, five days per week, beginning at four weeks of age. At all other times, including the first four weeks of life, they were kept in the dark. Beginning at eleven weeks of age, the kittens were motivationally trained to recognize grating acuity patterns, and then acuity testing in the non-deprived eye began at twenty-two weeks of age. Reverse occlusion and acuity testing after the critical period, for the purpose of exploring any motivational visual function recovery, began at thirty-seven weeks of age
Fast regridding of large, complex geospatial datasets
In the earth sciences, data are commonly cast on complex grids in order to model irregular domains such as coastlines, or to evenly distribute grid points over the globe. It is common for a scientist to wish to re-cast such data onto a grid that is more amenable to manipulation, visualization, or comparison with other data sources. The complexity of the grids presents a significant technical difficulty to the regridding process. In particular, the regridding of complex grids may suffer from severe performance issues, in the worst case scaling with the product of the sizes of the source and destination grids. We present a mechanism for the fast regridding of such datasets, based upon the construction of a spatial index that allows fast searching of the source grid. We discover that the most efficient spatial index under test (in terms of memory usage and query time) is a simple look-up table. A kd-tree implementation was found to be faster to build and to give similar query performance at the expense of a larger memory footprint. Using our approach, we demonstrate that regridding of complex data may proceed at speeds sufficient to permit regridding on-the-fly in an interactive visualization application, or in a Web Map Service implementation. For large datasets with complex grids the new mechanism is shown to significantly outperform algorithms used in many scientific visualization packages
Fathers report experiencing negative feelings and psychological difficulties during the perinatal period
The perinatal period is the time from the start of pregnancy to 1 year after the child has been born.1 During the perinatal period, an estimated 5%–10% of fathers will develop above-threshold symptoms of paternal depression.2 During this period, fathers can experience a high level of stress which can have negative effects on themselves and their families.3 This review aims to explore the needs and experiences associated with the mental health of fathers during this perinatal period.
The Gaussian Plasma Lens in Astrophysics. Refraction
We consider the geometrical optics for refraction of a distant radio source
by an interstellar plasma lens, with application to a lens with a Gaussian
electron column density profile. The refractive properties of the lens are
specified completely by a dimensionless parameter, alpha, which is a function
of the wavelength of observation, the lens' electron column density, the
lens-observer distance, and the transverse diameter of the lens. Relative
motion of the observer and lens produces modulations in the source's light
curve. Plasma lenses are diverging so the light curve displays a minimum, when
the lens is on-axis, surrounded by enhancements above the unlensed flux
density. Lensing can also produce caustics, multiple imaging, and angular
position wander of the background source. If caustics are formed, the
separation of the outer caustics can constrain alpha, while the separation of
the inner caustics can constrain the size of the lens. We apply our analysis to
0954+654, a source for which we can identify caustics in its light curve, and
1741-038, for which polarization observations were obtained during and after
the scattering event. We find general agreement between modelled and observed
light curves at 2.25 GHz, but poor agreement at 8.1 GHz. The discrepancies may
result from a combination of lens substructure or anisotropic shape, a lens
that only grazes the source, or unresolved source substructure. Our analysis
places the following constraints on the lenses: Toward 0954+654 (1741-038) the
lens was 0.38 AU (0.065 AU) in diameter, with a peak column density of 0.24 pc
cm^{-3} (1E-4 pc cm^{-3}) and an electron density of 1E5 cm^{-3} (300 cm^{-3}).
The angular wander caused by the lens was 250 mas (0.4 mas) at 2.25 GHz. For
1741-038, we place an upper limit of 100 mG on the lens' magnetic field.Comment: 26 pages, LaTeX2e using AASTeX macro aaspp4, 11 PostScript figures;
to be published in Ap
Spectrum Sharing Dynamic Protection Area Neighborhoods for Radio Astronomy
To enforce incumbent protection through a spectrum access system (SAS) or
future centralized shared spectrum system, dynamic protection area (DPA)
neighborhood distances are employed. These distances are distance radii, in
which citizen broadband radio service devices (CBSDs) are considered as
potential interferers for the incumbent spectrum users. The goal of this paper
is to create an algorithm to define DPA neighborhood distances for radio
astronomy (RA) facilities with the intent to incorporate those distances into
existing SASs and to adopt for future frameworks to increase national spectrum
sharing. This paper first describes an algorithm to calculate sufficient
neighborhood distances. Verifying this algorithm by recalculating previously
calculated and currently used neighborhood distances for existing DPAs then
proves its viability for extension to radio astronomy facilities. Applying the
algorithm to the Hat Creek Radio Observatory (HCRO) with customized parameters
results in distance recommendations, 112 kilometers for category A (devices
with 30 dBm/10 MHz max EIRP) and 144 kilometers for category B (devices with 47
dBm/10MHz max EIRP), for HCRO's inclusion into a SAS and shows that the
algorithm can be applied to RA facilities in general. Calculating these
distances identifies currently used but likely out-of-date metrics and
assumptions that should be revisited for the benefit of spectrum sharing.Comment: 6 pages, 5 figures, 5 tables, published to WCNC 202
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