Life Sciences Commons^™

Powhatan Courthouse And Log Building

Farming in Arkansas

Color photograph of the Powhatan Courthouse and the Imboden-Ficklin log house with a garden in the foreground. The photograph was taken before the log house was restored.

Morphological Variation In The Southeastern Pocket Gopher, Geomys Pinetis (Mammalia: Rodentia), Stephen L. Williams, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

The nominal species of southeastern pocket gophers (Geomys pinetis, G. colonus, G. cumberlandius, and G. fontanelus), which collectively occupy a geographic range on the Atlantic and Gulf coastal plain of Alabama, Georgia, and Florida, were examined for morphological variation. Univariate and multivariate analyses were used to determine age, sexual, individual, and geographic variation in G. pinetis. Significant differences were found among different age classes and between sexes. Males displayed higher individual variation than females and external measurements were more variable than cranial measurements. Of the four named species in the pinetis-species group (colonus …

Karyology And Morphometrics Of Three Species Of Akodon (Mammalia: Muridae) From Northwestern Argentina, Rubén M. Barquez, Daniel F. Williams, Michael A. Mares, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Chromosomal and morphometric studies were conducted on a sample from an assemblage of Akodon spp. occurring in various patterns of sympatry from the provinces of Catamarca, Jujuy, Salta, and Tucumán, Argentina. Results showed three distinct morphometric groups based upon size. Size also varied with age, but there were no significant differences in measurements of males and females. The three morphometric groups have distinct karyotypes. Akodon caenosus Thomas is the smallest of the three, and has a karyotype of 2n = 34, FN = 40. A. boliviensis tucumanensis J. A. Allen is intermediate in size and has 2n = 40, FN …

Results Of The Alcoa Foundation-Suriname Expeditions. Iv. A New Species Of Bat Of The Genus Molossops (Mammalia: Molossidae), Stephen L. Williams, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

A new species of molossid bat of the genus Molossops is described from Suriname. The new species is a member of the subgenus Molossops where it is distinguished from the other two member species, temminckii and aequatorianus, by larger external and cranial size. A single specimen of the species was taken in northern Suriname in an area of savannah and secondary forest.

Northeast Research Station Watertown, South Dakota Annual Progress Report, 1980, Agricultural Experiment Station, Plant Science Department

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1980 annual progress report for the Northeast Research Station in Watertown, South Dakota. This report is issued by the South Dakota Agricultural Experiment Station and the South Dakota State University, Plant Science Department. This report includes information on the 1980 crop season, crop history for sunflowers, sunflower variety trials, sunflower population study, hay, silage, sorghum, and a soybean variety study.

Goodyera Pubescens (Willd.) R. Br., B. N. Mcknight

Specimens by Name

No abstract provided.

Agriculture News Release - 1980-12-11, United States. Congress. House. Committee On Agriculture, E. De La Garza

Kika de la Garza Congressional Papers - Agriculture Committee News Releases

No abstract provided.

The Ductuli Efferentes In Macaca Mulatta: Electron Microscopic Evaluation Of Changes After Vasectomy, Loyal Douglas Marsh

Dissertations and Theses

After vasectomy, the passage of sperm antigen through the epithelium of the efferent duct in the rhesus macaque probably results in immune complex deposition. Immune complexes can be visualized in the thickened basement by fluorescence microscopy. Subsequent electron microscopic evaluation, with the appearance of electron-dense deposits in the basement membrane of the efferent ducts, substantiates these findings.

Effects Of Self-Pollination In The Genus Pinus, Liz Cole

Undergraduate Honors Capstone Projects

The problems of self-pollination among trees are a major concern to foresters. Silvicultural practices have an effect on the frequency of self-pollination.For example, a cut, such as a shelterwood or seed tree, reduces the number of individuals in the breeding population and increases the distance between individual trees. This tends to increase the frequency of self-pollination. These effects can either be helpful or harmful depending on the goals of the forester. Therefore, a basic understanding as to the effects of self-pollination on trees is necessary. The point of focus in this paper is the genus, Pinus.

Self-pollination occurs naturally in …

Summary Of Arguments In Favor Of And Against Use Of A Hydraulic Escalator Dredge For Harvest Of Hard Clams In Virginia With A Short Statement On Operation Of The Machine, Virginia Institute Of Marine Science

Reports

No abstract provided.

Factors Affecting Insecticide-Induced Resurgence Of The Brown Planthopper, Nilaparvata Lugens On Rice, S. Chelliah, E. A. Heinrichs

Department of Entomology: Faculty Publications

Resurgence of the brown planthopper, Nilaparvata lugens (Stål) on rice was induced by applications of decamethrin, methyl parathion, and diazinon. Differential mortality of predators and hoppers did not appear to be the primary factor for resurgence. Hoppers appeared to be attracted to methyl parathion and decamethrin treated plants because of plant growth. Improved plant growth, however, did not compensate for the increased feeding of the insecticide-treated hopper population, and plants treated with resurgence-causing insecticides succumbed to feeding injury earlier than untreated plants. Population increases were due in part to stimulation of reproduction of the hopper, either by contact action of …

Number 10 (December 1980), Southern Fishes Council

Southeastern Fishes Council Proceedings

New Records for the Northern Studfish Fundulus catenatus, in the Lower Mississippi and Gulf Coastal Drainages. By H.L. Bart and R.C. Cashner, plus News Notes, 5 pp.

New Records For The Northern Studfish, Fundulus Catenatus, In The Lower Mississippi And Gulf Coastal Drainages, Henry L. Bart Jr., Robert C. Cashner

Southeastern Fishes Council Proceedings

No abstract provided.

News Notes, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.

The Interrelationship Between Household Food Expenditure And Fixed Expenses, University Of Tennessee Agricultural Experiment Station, John R. Brooker, Roger A. Hinson

Bulletins

No abstract provided.

Curl: As Affected By Filler Distribution, Larry L. Lince

Paper Engineering Senior Theses

The objective of this study was to study the curl response of paper as affected by filler distribution, i.e. top-side, wire-side, or middle of the sheet, and to determine whether or not filler distribution plays a part in curl formation. Plybonded sheets were prepared which contained 17-20% ash. The filler content was positioned in various locations within the sheet. The sheets were subjected to relative humidities of 20-80%, and the curl response was measured. The maximum curl was produced when the filler was farthest away from the dryer surface. Minimum curl. was produced when the filler was closest to the …

Southeast South Dakota Experiment Farm Annual Progress Report, 1980, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This twentieth annual report of the research program at the Southeast South Dakota Experiment Farm has special significance for those engaged in agriculture and the agriculturally related businesses in the nine county area of southeast South Dakota. Reports in this document include information on: temperatures and precipitation data, corn breeding and performance, soybean research and planting, crop rotation, and pest control and other topics.

Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 1980, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1980 progress report for the Central Crops and Soils Research Station at Highmore, South Dakota State College. This document represents the research conducted at the Station during the 1980 crop season including: weather data, crop rotation, hay, haylage, and silage production, small grain trials, spring wheat breeding, forage experiments, garden information, sunflower research, fodder beets, soybean trials, sheep-ram testing.

West River Agricultural Research And Extension Center Progress Report, 1980, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1980 annual progress report of the West River Crops Soils Research and Extension Center, South Dakota Agricultural Experiment Station. This report includes: a weather summary, small grain variety trials, sunflower variety testing, sorghum variety testing, and management, tillage and cultural practices.

Methods For Biological, Chemical, And Physical Analyses In Reservoirs, Penelope E. Kellar, Sherell A. Paulson, Larry J. Paulson

Publications (WR)

This manual contains detailed descriptions of biological, chemical and physical sampling and analytical procedures used at the Lake Mead Limnological Research Center. The manual was prepared in response to requests made by numerous individuals involved in the Las Vegas Valley Water Quality Program. This manual represents what we consider to be a reasonably complete compilation of methods useful in studying both general and specific limnological questions. While each section is sufficiently detailed to be of use to investigators with little experience in limnological methodology, the methods can be used on a wide variety of lakes and reservoirs, with relatively little …

The Interrelationship Of Fiber Length To Titanium Dioxide Pigment Retention, Robert A. Hansen

Paper Engineering Senior Theses

A literature review is presented that reviews the various considerations of retention in papermaking. The definition of retention and the three methods of retention,(sieving,entrapment, and coflocculation), are reviewed. Coagulation and flocculation are respectively discussed. Zeta potential and the various methods with which it is measured are reviewed, as well as various factors that influence zeta potential. The role of fines in the retention of wet end additives in the papermaking process is also discussed.

An experiment is designed to evaluate the effect of fiber length on titanium dioxide pigment retention. The experiment involves the determination of an optimum level of …

Effectiveness Of Combination Solvent And Aqueous Deinking Of Waxed And Printed Papers, James A. Lanter

Paper Engineering Senior Theses

Investigation of badly contaminated paper as a source of secondary fiber is an area of growing interest to the paper industry. A process that can remove contaminates from high gloss, printed, waxed, and/ or polycoated specialty paper is the experimental part of this thesis.

A brief overview of major factors involved in secondary fiber recycling will be discussed, such as economic factors, new demands, and pressures placed on the recycling industry. (1, 2, 3)

Different methods of contaminate removal and deinking techniques are discussed with a listing of advantages and disadvantages of each. (The methods include principles involved in absorbing …

Front Matter

Henry Ford Hospital Medical Journal

No abstract provided.

Phleborheography: A Correlative Study With Venography, Joseph P. Elliott Jr., John H. Hageman, Ann C. Belanger, Roger F. Smith

Henry Ford Hospital Medical Journal

The Vascular Laboratory of Henry Ford Hospital has used the Cranley-Grass Phleborheograph (PRG) as the primary noninvasive method to determine the presence or absence of deep venous thrombosis (DVT) in the lower limbs since December 1977. In order to determine its proper role and clinical reliability, we compared the diagnostic accuracy of phleborheography with contrast venography. From December 1977 through December 1978, 483 cases (963 limbs) were successfully examined by PRG. Ofthese, 111 cases (216 limbs) also had contrast venography. The PRG was confirmed as normal in 151 out of 157 (6 false negatives). There were 53 abnormal PRCs, with …

Glucose Phosphate Isomerase Deficiency: Unusual Acute Hemolytic Crisis In A Middle-Aged Woman, Koichi Maeda, Sheikh M. Saeed, Raymond W. Monto, Ernest Beutler

Henry Ford Hospital Medical Journal

Hereditary hemolytic anemia associated with glucose phosphate isomerase (GPI) deficiency was first reported in 1967. Since then, about 30 cases have been reported in the literature; their ages ranged between 1 and 26 years. We present a case of glucose phosphate isomerase deficiency in a 56-year-old woman. Steroid therapy seemed to resolve our patient's acute stage. Since it has not been mentioned previously, further evaluation is necessary. Consideration of this deficiency may be helpful in investigating hemolytic anemia, regardless of the patient's age.

Intensity Of The Second Heart Sound: Relation Of Physical, Physiological And Anatomic Factors To Auscultatory Evaluation, Paul D. Stein, Hani Sabbah

Henry Ford Hospital Medical Journal

The intensity of the heart sound depends upon: 1) the distensibility of the aortic and pulmonary valves; 2) hemodynamic factors that cause the valves to distend and vibrate; 3) viscosity of the blood and its ability to inhibit diastolic valve motion; 4) the configuration of the aorta, pulmonary artery, and ventricle and the ability of the walls of the great vessels and ventricles to absorb or reflect sound energy; and 5) the capability of sound to be transmitted to the chest wall. Recognizing how these physical, physiological, and anatomic factors interact can help us to interpret auscultation of the intensity …

Letters To The Editor

Henry Ford Hospital Medical Journal

No abstract provided.

A Selective Approach To Bleeding Esophageal Varices, Glyn G. Jamieson, Irwin B. Faris, John Ludbrook

Henry Ford Hospital Medical Journal

It is possible that the best results of treatment for bleeding esophageal varices will come when a selective approach is used. In patients bleeding acutely and in patients with poor liver function shunt operations should be avoided, and a direct attack on the varices with either sclerosant therapy, percutaneous obliteration, or staple gun gastro-esophageal transsection should be carried out. In patients who have stopped bleeding, or those in whom elective treatment is being undertaken, the best operation at present appears to be selective distal splenorenal shunt.

Henry Ford Hospital Clinicopathological Conference: Hypercoagulable State In Cancer Of The Pancreas In A 57-Year-Old Man

Henry Ford Hospital Medical Journal

No abstract provided.

Back Matter

Henry Ford Hospital Medical Journal

No abstract provided.