The effect of seams and closures on pesticide penetration through fabrics

The purpose of this study was to evaluate the effect of seams and closures on pesticide penetration through fabrics. Three studies were conducted. The studies all used a multilayer sample which either had a seam or zipper closure implemented into its top test layer. The multilayer sample was then sprayed in a lab in a spray chamber, extracted, and analyzed by a high performance liquid chromatograph. A seam study and a zipper closure study were done with the pesticide Dicofol®. The seam study analyzed four fabrics and five seams, along with a \u27no seam \u27 which represented the base line or control. A Duncan\u27s Multiple Range Test was performed on rankings. The analysis showed no significant differences among the seams due to the limited size of the sample. The zipper study analyzed five different zipper closures with the fabric Tyvek®. The study found through an analysis of variance that the lapped traditional zipper allowed the least amount of Dicofol® to penetrate. Out of sixteen replications only one sample allowed penetration for the lapped traditional zipper. The seam study for the pesticide Terrazole® analyzed the fabrics denim and Tyvek® with three seams, and a \u27no seam\u27 which represented the base line or control. The study performed an orthogonal contrast analysis. The analysis found the Tyvek® fabric provided a better barrier to Terrazole® than the denim fabric. The denim fabric with a seam provided a better barrier to Terrazole® than the denim samples with no seam. The Tyvek® fabric with a seam provided a better barrier to Terrazole® than the Tyvek® samples with no seam. Finally the seam that provided the best barrier to Terrazole® was the plain seam

South Dakota Handbook of Population Data

This handbook has been developed primarily for the use of those planning programs in Agricultural Extension, Schools, Churches, and other groups or agencies concerned with social or economic programs. The data presented were compiled in conjunction with the South Dakota Agricultural Experiment Station Project, Population Changes and Implications for the Development of Agricultural and Rural Life . This project is a cooperation one with the North Central Regional Project, NC-182. Data from the US Census reports of 1940 and 1950 have been analyzed and compiled in this special form. The material is presented without explanation or interpretation since it’s purpose is to provide a source of data which will be of value to leaders of state groups and agencies

Population Change in South Dakota Small Towns and Cities

The purpose of this study was to identify factors associated with growth and decline of incorporated places (i.e. small towns and cities) in South Dakota. This purpose or objective is part of a broader focus concerning the growth and decline of incorporated places in South Dakota. The Department of Rural Sociology currently has three objectives in its communities research program: 1) to identify factors associated with population change in communities, 2) to determine the results of such change, and 3) to identify the kinds of adjustments needed to build communities which can grow and prosper in a constantly changing society

Attitudes Toward and Perceptions of Pollution by Residents of the Big Stone Lake Area

The objectives of the study were to determine: (1) the attitudes of local residents toward environmental problems; and, (2) whether these attitudes differ when the effects of selected socio-demographic characteristics such as age, education, and income are statiscally controlled in the analysis

A Sampling Study of the Blue Point Woods, Poweshiek, Co., Iowa

During the fall of 1953 a study was made of the Blue Point Woods, an area located approximately nine miles southeast of Grinnell, in Section 14 of Washing ton Township, Poweshiek County, Iowa. The Blue Point forest is clearly divided into three stands, two of which are approximately the same age and older than the last. These stands are oriented in a north-south direction. From north to south, respectively, we find an old, grazed stand; a younger, cut-over stand; and a very old, undisturbed stand. The old, grazed stand is fairly open with little in the way of herbaceous and frutescent layers other than blue grass (Poa pratensis) and Ribes spp. The younger, cut-over stand is densely populated with trees, shrubs, and herbs. The undisturbed stand is made up of many large trees forming a dense canopy. The herbaceous and frutescent layers are also well developed and include many transgressives and tree seedlings. The investigation occurred so late in the year that no attempt was made to sample the herbaceous flora

Changing Farm Numbers

Objectives of the study are to determine: 1. the extent of the change in the number of farm units by county in South Dakota, and 2. the association between the change in the number of farm units and selected sociodemographic factors

Testosterone Replacement Therapy in Aging Males

The U.S. Food and Drug Administration (FDA) cautions health care providers and patients regarding the use of testosterone replacement therapy products for the aging process, including a decrease in muscle strength, muscle mass, and lack of energy or sexual desire, due to an increased risk of heart attacks and strokes. Testosterone replacement therapy products are indicated for genetic defects, chemotherapy damage, or damage to the hypothalamus or pituitary gland, where testosterone is produced. A patient and his team of health care professionals must seriously consider the risks and benefits when using these products for other indications. Use of testosterone replacement therapy products for low testosterone due to natural aging has been on the rise due to disease state awareness, pharmaceutical marketing and media attention. Pharmacists can make a difference in patients\u27 lives by conducting patient education and counseling for these products

Population Change in Incorporated Places in South Dakota, 1940-60

These tables are a part of South Dakota Agricultural Experiment Station bulletin 571, Population change in South Dakota small towns and cities, 1940-1960, by Donald R. Field and Robert M. Dimi

South Dakota Low Income Families and Migration

Generally, a high proportion of out-migrants are believed to be persons who leave because of limited economic opportunities in the State for the skilled, the educated, underemployed or the employed members of the labor force. Often, underemployed and the unemployed are members of disadvantaged families; that is, families characterized by income levels not adequate to provide minimum living standards. Consequently, it is believed that areas of a rural state with extensive concentrations of poverty level families may be areas of low employment opportunities, and consequently areas of high out-migration. For this study, poverty level families are those households with incomes below poverty level, as defined by the United States Bureau of the Census. Primarily, income is the major determinant of poverty status; however, the specified income minimums vary according to rural-urban residency, marital status, and number of dependents. Table 1 shows typical poverty levels by household and residence. Poverty level families are of ten referred to as disadvantaged families, and counties or households with high levels of poverty are referred to as areas or units of disadvantagement