393 research outputs found
Analysis of economics of a TV broadcasting satellite for additional nationwide TV programs
The influence of a TV broadcasting satellite, transmitting four additional TV networks was analyzed. It is assumed that the cost of the satellite systems will be financed by the cable TV system operators. The additional TV programs increase income by attracting additional subscribers. Two economic models were established: (1) each local network is regarded as an independent economic unit with individual fees (cost price model) and (2) all networks are part of one public cable TV company with uniform fees (uniform price model). Assumptions are made for penetration as a function of subscription rates. Main results of the study are: the installation of a TV broadcasting satellite improves the economics of CTV-networks in both models; the overall coverage achievable by the uniform price model is significantly higher than that achievable by the cost price model
Eating and Related Disorders: Implications for the Deaf Community
Therapists and counselors who work with deaf clients are beginning to note that some form of eating disorders and distortions in body image perception do exist. To understand the difficulty of eating and related disorders and their inroads into the deaf community, it is important to know the differences between the various related disorders. This article introduces eating disorders and body perception and provides a brief look at some of the ways in which counselors might be more attuned to the prevalence of these disorders among their deaf clients
Biochar for Forest Restoration in Western States
This factsheet introduces biochar, bio-oil, synthesis gas, pyrolysis, and torrified wood products to the reader. We describe biochar production methods and applications for forest restoration projects in the Intermountain West
Statistical Downscaling with Spatial Misalignment: Application to Wildland Fire PM2.5 Concentration Forecasting
Fine particulate matter, PM2.5, has been documented to have adverse health effects, and wildland fires are a major contributor to PM2.5 air pollution in the USA. Forecasters use numerical models to predict PM2.5 concentrations to warn the public of impending health risk. Statistical methods are needed to calibrate the numerical model forecast using monitor data to reduce bias and quantify uncertainty. Typical model calibration techniques do not allow for errors due to misalignment of geographic locations. We propose a spatiotemporal downscaling methodology that uses image registration techniques to identify the spatial misalignment and accounts for and corrects the bias produced by such warping. Our model is fitted in a Bayesian framework to provide uncertainty quantification of the misalignment and other sources of error. We apply this method to different simulated data sets and show enhanced performance of the method in presence of spatial misalignment. Finally, we apply the method to a large fire in Washington state and show that the proposed method provides more realistic uncertainty quantification than standard methods
Statistical downscaling with spatial misalignment: Application to wildland fire PM concentration forecasting
Fine particulate matter, PM, has been documented to have adverse
health effects and wildland fires are a major contributor to PM air
pollution in the US. Forecasters use numerical models to predict PM
concentrations to warn the public of impending health risk. Statistical methods
are needed to calibrate the numerical model forecast using monitor data to
reduce bias and quantify uncertainty. Typical model calibration techniques do
not allow for errors due to misalignment of geographic locations. We propose a
spatiotemporal downscaling methodology that uses image registration techniques
to identify the spatial misalignment and accounts for and corrects the bias
produced by such warping. Our model is fitted in a Bayesian framework to
provide uncertainty quantification of the misalignment and other sources of
error. We apply this method to different simulated data sets and show enhanced
performance of the method in the presence of spatial misalignment. Finally, we
apply the method to a large fire in Washington state and show that the proposed
method provides more realistic uncertainty quantification than standard
methods
Sex chromosome positions in human interphase nuclei as studied by in situ hybridization with chromosome specific DNA probes
Two cloned repetitive DNA probes, pXBR and CY1, which bind preferentially to specific regions of the human X and Y chromosome, respectively, were used to study the distribution of the sex chromosomes in human lymphocyte nuclei by in situ hybridization experiments. Our data indicate a large variability of the distances between the sex chromosomes in male and female interphase nuclei. However, the mean distance observed between the X and Y chromosome was significantly smaller than the mean distance observed between the two X-chromosomes. The distribution of distances determined experimentally is compared with three model distributions of distances, and the question of a non-random distribution of sex chromosomes is discussed. Mathematical details of these model distributions are provided in an Appendix to this paper. In the case of a human translocation chromosome (XqterXp22.2::Yq11Y qter) contained in the Chinese hamster x human hybrid cell line 445 x 393, the binding sites of pXBR and CY1 were found close to each other in most interphase nuclei. These data demonstrate the potential use of chromosome-specific repetitive DNA probes to study the problem of interphase chromosome topography
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