The Chemical Compositions Of RR Lyrae Type C Variable Stars

We present a detailed chemical abundance study of eight RR Lyrae variable stars of subclass c (RRc). The target RRc stars chosen for study exhibit "Blazhko-effect" period and amplitude modulations to their pulsational cycles. Data for this study were gathered with the echelle spectrograph of the 100 inch du Pont telescope at Las Campanas Observatory. Spectra were obtained throughout each star's pulsation cycle. Atmospheric parameters-effective temperature, surface gravity, microturbulent velocity, and metallicity-were derived at multiple phase points. We found metallicities and element abundance ratios to be constant within observational uncertainties over the pulsational cycles of all stars. Moreover, the alpha-element and Fe-group abundance ratios with respect to iron are consistent with other horizontal-branch members (RRab, blue and red non-variables). Finally, we have used the [Fe/H] values of these eight RRc stars to anchor the metallicity estimates of a large-sample RRc snapshot spectroscopic study being conducted with the same telescope and instrument combination employed here.NSF AST-0908978, AST-1211585Baker Centennial Research EndowmentJohn W. Cox Endowment for the Advanced Studies in AstronomyMcDonald Observator

Bulletin No. 244 - Economic Factors AFfectin Poultry Production and Marketing in Utah: 1929, 1930, and 1931

Since 1929 the Department of Agricultural Economics of the Utah Agricultural Experiment Station and the Divisions of Farm Management and Costs and of Cooperative Marketing of the Bureau of Agricultural Economics of the United States Department of Agriculture have been cooperating in conducting a study of the economic factors affecting the production and marketing of poultry products in Utah. Under the arrangement, as entered into by these three groups, the Agricultural Economics Department of the Experiment Station and the Division of Farm Management and Costs of the Bureau of Agricultural Economics agreed to study the trends in production, feed supply, poultry management, cost of production, price factors , and relationship of the poultry enterprise to the farm business as a whole. The Division of Cooperative Marketing agreed to make a business analysis study of the Utah Poultry Producers Cooperative Association. This bulletin contains the results secured, giving an analysis of the factors affecting the production of poultry products and certain phases of marketing as they relate to production. Two preliminary reports/ giving the results of this study, have been published by the Utah Station as Miscellaneous Publications 8 and 9. A later bulletin, entitled Business Analysis of the Utah Poultry Producers Cooperative Association, will contain a more specific analysis of the marketing of these products

Bulletin No. 289 - Business Analysis of Farms in Utah County, Utah

Project 179 of the Utah Agricultural Experiment Station - A Study of the Agricultural Resources of Utah and their Utilization - was set up in April 1936 as a state-wide project. The object of this project was to measure by areas the basic agricultural resources of the state and to translate the information collected into a program of more efficient use. The more specific objectives were: (1) classification of agricultural lands of Utah according to present and potential productivity and use; (2) determination of the net productive area of agricultural lands and water supply now available, or which may be developed; and (3) determination of the present use and methods of achieving utilization of land, water, and other resources as they relate to the welfare of the people of the state

Bulletin No. 273 - Drainage and Irrigation, Soil, Economic, and Social Conditions, Delta Area, Utah, Division 3: Economic Conditions

Project 90-A Study of Factors Influencing the Financial Condition of Certain Utah Irrigation and Drainage Projects-was undertaken in 1928 as an intensified study of local areas. This study was divided among four departments, with a project leader for each particular phase of the study. These four project leaders, guided by the Station Director, have constituted a committee in immediate charge of this project. Subprojects and their respective leaders have been: A-Engineering and Engineering Economic Aspects, O. W. Israelsen; B-Soil Productivity Aspects, D. S. Jennings; C-Contributing Sociological Aspects, J. A. Geddes; and D-Economic Aspects, W. Preston Thomas

A Visualization of Spreadsheets with Lucifer

Probabilistic archetypes and the location-identity split have garnered minimal interest from both system administrators and software engineers in the last several years. In this work, we argue the emulation of IPv4, demonstrates the significant importance of partitioned electrical engineering. In this paper, we validate not only that spreadsheets and IPv6 can synchronize to overcome this question, but that the same is true for Markov models

Bulletin No. 325 - An Economic Study of Sheep Production in Southwestern Utah

Range sheep production has been one of the major agricultural enterprises in Utah, particularly in the southwestern part of the state, since these areas were first settled. Stock sheep numbers in Utah were about 2,100,000 by 1890, which is approximately the present number in the state. Since 1890 the numbers have fluctuated between 2,000,000 and 2,775,000. This important industry has, from the time of its introduction, been closely associated with the use of public range lands. The unrestricted grazing of public range lands resulted in damage to a considerable area and was one of the important factors that led to the establishment of federal agencies to administer these properties

Age and Prostate-Specific Antigen Level Prior to Diagnosis Predict Risk of Death from Prostate Cancer.

A single early prostate-specific antigen (PSA) level has been correlated with a higher likelihood of prostate cancer diagnosis and death in younger men. PSA testing in older men has been considered of limited utility. We evaluated prostate cancer death in relation to age and PSA level immediately prior to prostate cancer diagnosis. Using the Veterans Affairs database, we identified 230,081 men aged 50-89 years diagnosed with prostate cancer and at least one prior PSA test between 1999 and 2009. Prostate cancer-specific death over time was calculated for patients stratified by age group (e.g., 50-59 years, through 80-89 years) and PSA range at diagnosis (10 ranges) using Kaplan-Meier methods. Risk of 10-year prostate cancer mortality across age and PSA was compared using log-rank tests with a Bonferroni adjustment for multiple testing. 10.5% of men diagnosed with prostate cancer died of cancer during the 10-year study period (mean follow-up = 3.7 years). Higher PSA values prior to diagnosis predict a higher risk of death in all age groups (p < 0.0001). Within the same PSA range, older age groups are at increased risk for death from prostate cancer (p < 0.0001). For PSA of 7-10 ng/mL, cancer-specific death, 10 years after diagnosis, increased from 7% for age 50-59 years to 51% for age 80-89 years. Men older than 70 years are more likely to die of prostate cancer at any PSA level than younger men, suggesting prostate cancer remains a significant problem among older men (even those aged 80+) and deserves additional study