Technologies for the marketplace from the Centers for Disease Control

The Centers for Disease Control, a Public Health Service agency, is responsible for the prevention and control of disease and injury. Programs range from surveillance and prevention of chronic and infectious diseases to occupational health and injury control. These programs have produced technologies in a variety of fields, including vaccine development, new methods of disease diagnosis, and new tools to ensure a safer work environment

Cultural Resources Survey: Freeport, Harbor, Texas, (45-Foot) Navigation Improvement Project, Brazoria County, Texas

In October and November of 1980, the Center for Archaeological Research, The University of Texas at San Antonio, conducted an intensive resource survey and limited testing in an area on either side of the mouth of the Brazos River in Brazoria County, Texas. A history was composed of the project area in relation to that of the Republic and State of Texas. A structural history of the town of Velasco was compiled from archival and historical research. Intensive survey and assessment of the project area resulted in the conclusion that, aside from a few possible subsurface indications at or below the water level, Fort Velasco and the townsite of Velasco have been eliminated by the action of successive tropical storms. It is recommended, however, that further intensive testing be carried out if the area within Monument Square of old Velasco is to be seriously impacted by the Freeport Harbor Navigation Improvement Project

PRECISION AGRICULTURE: ECONOMICS OF NITROGEN MANAGEMENT IN CORN USING SITE-SPECIFIC CROP RESPONSE ESTIMATES FROM A SPATIAL REGRESSION MODEL

Adapting variable rate technology (VRT) to Argentine conditions requires methods that use inexpensive information and that focus on the inputs and variability common to Argentine maize and soybean growing areas. The goal of this study is to determine if spatial regression analysis of yield monitor data can be used to estimate the site-specific crop Nitrogen (N) response needed to fine tune variable rate fertilizer strategies. N has been chosen as the focus of this study because it is the most commonly used fertilizer by corn farmers in Argentina. The methodology uses yield monitor data from on-farm trials to estimate site-specific crop response functions. The design involves a strip trial with a uniform N rate along the strip and a randomized complete block design, with regression estimation of N response curves by landscape position. Spatial autocorrelation and spatial heterogeneity are taken into account using a spatial error model and a groupwise heteroskedasticity model. A partial budget is used to calculate uniform rate and VRT returns. First year data indicate that N response differs significantly by landscape position, and that VRA for N may be modestly profitable on some locations depending on the VRT fee level, compared to a uniform rate of urea of 80kg ha-1. A more complete analysis will pool data over many farms and several years to determine if reliable differences exist in N response by landscape position or other type of management zone. The study is planned for four years. The purpose of this preliminary analysis is to show how spatial regression analysis of yield data could be used to fine tune input use.Crop Production/Industries,

Boletín oficial de la provincia de León: Num. 218 (18/09/1933)

Copia digital. Valladolid : Junta de Castilla y León. Consejería de Cultura y Turismo, 2011-201

Reforming Federal Vacancies

The Federal Vacancies Reform Act (FVRA) is a powerful but complicated and overlooked statute. At its best, it is a pragmatic mechanism designed to fill vacancies in executive agencies. But the complicated nature of the FVRA has paved the way for Presidents to manipulate its numerous loopholes in effect bypassing Senate approval when appointing federal officers. These loopholes raise several issues that threaten the existence of the FVRA—including invalidation under the Constitution. Further, regulated entities and citizens should also be concerned about invalid rule promulgation and enforcement actions, increased procurement costs, lack of agency transparency, increased risk of agency capture, and lack of judicial remedies. But invalidation of the FVRA would create chaos and disruption—negating a useful and necessary mechanism—meant to keep administrative agencies running when vacancies occur. Thus, this Note argues that these loopholes should be closed to save the FVRA from invalidation and offers potential legislative solutions to accomplish this task

Lamination residual stresses in cross-plied fiber composites

Lamination residual stresses in cross-plied fiber composite