A Molecular Investigation of Inbreeding in Captive Addra Gazelles

Captive breeding of individuals to augment or reestablish a wild population requires the maintenance of maximum possible genetic variation to reflect the genetic variation present in the original wild population and reduce the occurrence of genetic drift or inbreeding in the captive population. Critically threatened addra gazelles (Nanger dama ruficollis) have been maintained in a captive breeding program since 1969 (10-15 generations) with no introduction of genetic material beyond the original 22 founders, of which only 8 have recorded descendents in the current population. Results from this study show a strong relationship between infant mortality and inbreeding, and a substantial increase in infant mortality over the first 20 years of the breeding program. In addition, molecular measures of inbreeding were correlated to various historical scenarios and suggest that more founders may have contributed to the population than expected based on pedigree data alone. A genetic sampling of all individuals in the population may be the only way to identify the most genetically distinct individuals in the population, and the best option for maintaining future genetic diversity

Nurse Practitioner-Led Hepatitis C Virus Education in a Central Valley Opioid Treatment Program

Introduction Viral hepatitis has been classified as a worldwide public health threat and it is estimated that 130-150 million people worldwide are infected with viral hepatitis. In the United States, increases in hepatitis C infections can be attributed to intravenous drug use and associated behaviors. Many people who inject drugs are unaware of their serostatus and access to accurate hepatitis C virus (HCV) information and education is limited. However, opioid treatment programs are well positioned to fill hepatitis C services gap among people who inject drugs by providing education, to raise hepatitis C awareness and lead to services and treatment utilization. Aims The primary aim was to assess the effects of the implementation of an educational session on a patient’s hepatitis C knowledge in an opioid treatment program. A secondary aim of the project was to increase a patient’s willingness to seek HCV care by a community healthcare provider. Methods & Design This study used a one-group, pretest-posttest, quasi-experimental design to measure hepatitis C knowledge before and after an educational session and pre and post-test in 12 participants. Results The results of the two-tailed paired t tests were significant based on an alpha of 0.05, t (11) = -4.30, p= 0.001; 41% of participants followed up with care after the intervention. Conclusion This study showed that providing HCV education to participants in an opioid treatment program was successful at improving their knowledge and awareness regarding hepatitis C and increased their willingness to follow up with HCV care

Affidavit, Marshall County, MS, 1 March 1860

https://egrove.olemiss.edu/aldrichcorr_c/1195/thumbnail.jp

Inventory of the Marshall County, MS Post Office, 30 June 1860

https://egrove.olemiss.edu/aldrichcorr_c/1197/thumbnail.jp

How to Deal With Waste Acceptance Uncertainty Using the Waste Acceptance Criteria Forecasting and Analysis Capability System (WACFACS)

The Waste Acceptance Criteria Forecasting and Analysis Capability System (WACFACS) is used to plan for, evaluate, and control the supply of approximately 1.8 million yd3 of low-level radioactive, TSCA, and RCRA hazardous wastes from over 60 environmental restoration projects between FY02 through FY10 to the Oak Ridge Environmental Management Waste Management Facility (EMWMF). WACFACS is a validated decision support tool that propagates uncertainties inherent in site-related contaminant characterization data, disposition volumes during EMWMF operations, and project schedules to quantitatively determine the confidence that risk-based performance standards are met. Trade-offs in schedule, volumes of waste lots, and allowable concentrations of contaminants are performed to optimize project waste disposition, regulatory compliance, and disposal cell management

Prompt air fluorescence induced by a high-altitude nuclear explosion

A high-altitude (>100) nuclear explosion emits a large fraction of its energy yield in the form of x rays, approximately half of which are deposited in the atmospheric layers {approximately}50--90 km, exciting prompt fluorescence. This paper examines four of the N{sub 2}{sup +} first negative bands that fluorescence strongly: {lambda}{lambda} 3914(0,0), 4278(0,1), 4709(0,2), and 5228(0,3) {Angstrom}. We developed both forward'' and backward'' Monte Carlo procedures and performed calculations using Los Alamos CRAY computers to simulate the physical problem for the variety of situations that are possible. We include the time-dependent treatment of x-ray energy deposition, both local and nonlocal excitation of fluorescence, multiple scattering and transmission of fluorescent photons with the resulting enhancement of the longer wavelength N{sub 2}{sup +} bands, and chemical reactions. A realistic atmospheric model is defined up to 800 km, including the troposphere and a Lambert reflecting ground surface with given albedo. To expedite such computations we use separate spatial meshes in which to carry out the x-ray deposition and fluorescence light scattering. Examples of our calculated results illustrate the effects of explosion yield, geometry, tropospheric scattering, ground albedo, and temperature of the fluorescing layer. 41 refs., 38 figs., 12 tabs

A combined video and gamma ray imaging system for robots in nuclear environments

An integrated imaging sensor system is being developed to enhance operations of robots and telerobotic systems used in nuclear industry. This system combines a gamma ray image of the distribution of radioactivity with a video image of the area, allowing a rapid and intuitive determination of the source location. The gamma ray imaging system is based upon a position sensitive photomultiplier tube, a segmented scintillator, and a pinhole collimator which provides high quality images in the energy range of 0.1 to 1.5 MeV. The design and measured performance of a prototype of this system will be discussed.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/31117/1/0000013.pd