Digital Commons Network^™

Relationship Between Relative Brain Size And Climbing Ability In Peromyscus, Cliff A. Lemen

School of Natural Resources: Faculty Publications

Eisenberg and Wilson (Evolution, 32:740-751, 1978) have documented an interesting relationship between the relative brain size of bats and the complexity of the habitat in which they forage. They found that bats that fly and forage through foliage have larger brains relative to their body size than those that forage in open air. Their explanation was that bats in the complex habitat must process more complex sonic information to navigate through the foliage. In order to do this a larger brain is required.

The Peromyscus of North America may offer a similar paradigm as far as habitat complexity …

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Director’s Comments [p] 2
Plugged Plastic [p] 3
Sensing R-value in Walls [p] 5
No Overnight Answers [p] 7
Update: Alcohol Fuels [p] 10
Counterattack on Hessians [p] 12
Analytical Services [p] 14
Enzyme Inquiries [p] 18

The Social Ecology Of Coyotes, Marc Bekoff, Michael C. Wells

Ethology Collection

No abstract provided.

The Chemical Buildup In A Closed Water System Using Recycled Fiber Furnish, Stephen R. Tremont

Paper Engineering Senior Theses

In recirculating whitewater in a closed water system, the solids will increase leading to operational problems such as corrosion, scale, reduced drainage rates, reduced wire life, increased temperatures, felt plugging, foam, and dirt. In dealing with these problems, whitewater samples from a conventional seven vat cylinder board machine were tested for chemical composition. The machine operates on a closed water loop and produces approximately 250 tons per day recycled boxboard. Tested anions included chloride, silica, phosphates, nitrates, sulfate, sulfide and tannin-lignin. Cations analyzed included calcium, barium, iron, aluminum and copper. Tests were conducted over an eighteen day machine running period …

Agricultural Experiment Station News April 1980

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S OFFICE
1972-73 ENROLLMENTS
PROJECTS APPROVED FROM JANUARY THROUGH MAY 1980
GRANTS AND CONTRACTS
PERSONNEL ACTION FROM JANUARY THROUGH MARCH 1980
FEATURE ARTICLE: AGRICULTURAL MECHANIZATION – WHO WINS? WHO LOSES?
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - March 1980
BULLETINS PRINTED

The Effects Of High Cheese Diets On Brain Serotonin And Alcohol Consumption, Beverly A. Utt

Loma Linda University Electronic Theses, Dissertations & Projects

Male weanling rats were placed on a nutritionally adequate casein diet and randomly assigned to one of eight groups. The first four groups were force fed alcohol for 22 days prior to the experimental phase of the study, while the last four groups had access to water only. Upon commencing the experimental phase each group was given one of the following diets: continuation of the casein diet; Cheddar; Limburger; or Roquefort cheese diets, along with the choice of alcohol and/or water. The particular cheeses were chosen for their ability to raise brain serotonin levels (62) . Alcohol consumption was measured …

Effects Of Selenium On 1, 2-Dimethylhydrazine (Bmh) Metabolism And Dna Alkylation, Philip Robert Harbach

Masters Theses

No abstract provided.

Macrobenthic Communities Of An Industrialized Seaport Ecosystem: The Southern Branch Of The Elizabeth River, Virginia, Steven D. Hawthorne

Biological Sciences Theses & Dissertations

Macrobenthic invertebrates of an industrialized seaport ecosystem were studied seasonally from October, 1977 through July, 1978. Five stations were selected along the Southern Branch of the Elizabeth River, Virginia. The stations ranged from an area of heavy industrialization to a non-urbanized environment. At each station, bottom water was measured for salinity, temperature, dissolved oxygen, and pH. Within each sampling area, macrobenthic infauna! invertebrates were collected from in and out of channel sites along with sediment samples for various types of physicochemical analysis.

Community structure was spatially homogeneous at station sites and throughout the stations along the River. Slightly acidic pH …

Filtration Ingestion And Assimilation Rates Of The Mysid Shrimp Neomysis Americana Smith, Fed Three Food Sources, Robert W. Grabb

OES Theses and Dissertations

Laboratory grazing and assimilation experiments were conducted on the mysid shrimp Neomysis americana in an attempt to assess the suitability of three potential food sources. It was hypothesized that the smaller size classes were primarily herbivores, not becoming omnivorous until attaining lengths of approximately 5-6 mm. Four size classes of mysids from the summer generation, juveniles, immature, adult males, and adult ovigerous females were each fed three concentrations of Artemia salina nauplii, the rotifer Brachionus plicatilis, and the diatom Coscinodiscus lineatus. The mean lengths of the size classes utilized, plus or minus one standard deviation, were 2.5 …

Distribution Of The Dinoflagellate Symbiosis In Astragia Danae As Affected By Light Attenuation, Michael Perry Weston

OES Theses and Dissertations

Spatial zonation of symbiotic and aposymbiotic forms of the temperate coral Astrangia danae provides evidence that light attenuation is an important factor in the distribution of this animal. At four locations in the lower Chesapeake Bay and adjacent offshore waters, symbiotic colonies were observed only in well illuminated surface waters, while aposymbiotic colonies were observed in less illuminated deeper waters. A transition zone exists in which both colony types are found. Colonies on substrates forming a plane parallel to the sea-surface receive a greater radiant flux than colonies on vertical substrates. This extends the depth range of symbiotic colonies located …

1980 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University

Little International "Little I" Agricultural Exposition Catalogs

No abstract provided.

Persistent Obstructive Jaundice Associated With Chronic Pancreatitis, C. Grodsinsky, M. A. Block

Henry Ford Hospital Medical Journal

Persistent obstructive jaundice due to stenosis of the distal common bile duct by chronic pancreatitis has been documented in 13 patients of 253 for whom the diagnosis of chronic pancreatitis has been established. All 13 cases required operation; obstructive jaundice was present at surgery in nine; four had recurring jaundice for prolonged periods. None had associated biliary lithiasis. All cases showed evidence of excess alcohol intake. The jaundice, often associated with mild to moderate pain, was disabling and life-endangering and was relieved by operation. In these patients carcinoma must always be ruled out by diagnostic studies, operation, and the elapse …

Agricultural Experiment Station News March 1980

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
PERSONNEL ACTION
GRANTS & CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - February 1980
BULLETINS PRINTED

The Prairie Naturalist Volume 12, Number 1. March, 1980

The Prairie Naturalist

RESIDUAL SEEDS AS POTENTIAL SPRING WATERFOWL FOODS IN SMALL, MAN-MADE IMPOUNDMENTS ▪ G. A. Baldassarre

NOTES ON THE NATURAL HISTORY OF BATS FROM BADLANDS NATIONAL MONUMENT, SOUTH DAKOTA ▪ J. P. Farney and J. K. Jones, Jr.

PRAIRIE CHICKEN DOMINATED SHARP-TAILED GROUSE INTERACTION ▪ R. A. Schmidt

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA— 1979 ▪ R. N. Randall

THIRD NESTING OF CATTLE EGRET IN NORTH DAKOTA ▪ R. A. Schmidt

FIRST BREEDING RECORDS OF THE WHITE-FACED IBIS IN NORTH DAKOTA ▪ R. A. Schmidt

NOTES

Pinon Jay in North Dakota ▪ R. N Randall, J. Swanick and O. Swanick

Gray-crowned …

Agricultural Experiment Station News February 1980

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
GENERAL NOTES
NEWSLETTER READER INPUT NEEDED
REMINDER TO STAFF
GRANTS
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - January 1979
BULLETINS PRINTED

#56 - Wild Edible Plants, Department Of Health Education

Keys to Total Health

No abstract provided.

#54 - Tips On Gardening, Department Of Health Education

Keys to Total Health

- What to Grow

- Limited Space

- Seeding

- Harvesting

- Winter Gardens

- Organic Farming

- Compost

- Chemical Fertilizer

- Unfounded Claims

- Health in a Garden

- Quiz

Age Study Of Minnesota Red Fox Using Cementum Annulae Counts And Tooth X-Rays, Dennis E. Simon, Merrill J. Frydendall

Journal of the Minnesota Academy of Science

A prerequisite to the proper management of an animal species is understanding of its population dynamics. Attempting this, the age structure of 297 red fox trapped or shot in southern Minnesota was investigated, using the techniques of tooth sectioning and x-ray. Results from two seasons (1977 and 1978) were similar, with 76.8 percent of the harvested population being juveniles (78.4 percent, 1977 and 74.6 percent, 1978), whereas only 0 .6 percent of the total were in the 4½ year old class. The percentage of juveniles corresponds closely to the numbers predicted by a Department of Natural Resources model developed by …

The Impact Of Extended Jurisdiction To 200 Nautical Miles On The Development And Management Of Fisheries In Western Samoa, Fili Suafoa

Marine Affairs Theses and Major Papers

The consequences of the inevitable acceptance of extended jurisdiction and its impact on the development and management of fisheries in Western Samoa are considered within the framework of the principles outlined at the United Nations Third Conference of the Law of the Sea - Revised Informal Composite Negotiating Text for the Eighth Session 1979. It is pointed out that with the passage of the 200-mile exclusive economic zone, Western Samoa not only has the opportunity to benefit from the harvesting of fish under its jurisdiction, but also must accept the responsibility of ensuring that the resource is rationally managed, and …

G80-493 Developing Replacement Beef Heifers (Weaning-Breeding), Gene H. Deutscher

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses the proper selection, nutrition, breeding, and management of replacement beef heifers from weaning to breeding. Proper selection and development of replacement heifers is one of the most important management programs in beef production. Replacement heifers should be selected and managed so they will conceive and calve early in the calving season, provide adequate milk production, and rebreed and calve every 365 days. Heifers bred as yearlings to calve as two-year-olds will produce an extra calf in their lifetime compared to heifers calving as three-year-olds, without detrimental effects on mature size, milk production, or calf weaning weights. The …

Adaptative Alteration In Phospholipid Composition Of Plasma Membranes From A Somatic Cell Mutant Defective In The Regulation Of Cholesterol Biosynthesis, Michael Sinensky

Faculty Publications, Biological Sciences

A somatic cell mutant (CR1) of a Chinese hamster ovary cell (CHO-K1) which has previously been shown to be defective in the regulation of cholesterol biosynthesis accumulates more cholesterol than the parental cell line in plasma membranes. Although such an increase in membrane cholesterol should lead to an increase in the order parameter of these membranes, as measured with an electron spin resonance spin probe, the order parameters of mutant and wild-type plasma membranes are identical--apparently because of an adaptive alteration in membrane phospholipid composition. The phospholipid compositions of mutant and wild-type cell plasma membranes are compared and the mutant …

Anti-Neoplastic Actions In Vivo And In Vitro By Non-Toxic Natural Products From Chara Globularis, A Multicellular Green Alga, Abdessalam Sherif

Theses Digitization Project

No abstract provided.

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Director’s Comments [p] 2
Direct Beef Marketing [p] 3
Selenium: Villain or Hero? [p] 7
Excellence that Won’t Quit [p] 11
Flax: A Crop to Watch [p] 13
Insect Watchers [p] 16

Distribution Of Naegleria Fowleri In Selected Northeast Arkansas Lakes, Robert Dean Evans, Lawrence W. Hinck

Journal of the Arkansas Academy of Science

Seven northeast Arkansas recreational lakes were examined for the presence of pathogenic and nonpathogenic Naegleria fowleri. Cultural differentiation and microscopic morphology were used as species determining tests, while mouse pathogenicity tests were conducted to determine virulence. Only one isolate met all criteria utilized for definite identification of Naegleria fowleri, although Naegleria type organisms were found in all of the lakes. None of the isolates were pathogenic in mice.

Irrigating Alfalfa In South Dakota, James R. Johnson, Charles R. Krueger, Lyle A. Derscheid, Darrel D. Pehl, Paul L. Carson

SDSU Extension Circulars

Alfalfa performs admirably an irrigated crop in South Dakota-so well that it is often neglected. When given attention, it can realistically maintain irrigated yields of 6 to 7 TIA each year in most of South Dakota where 1 to 2 T are produced on dryland. Irrigated land that will produce 100-130 bu corn will produce 5-7 T alfalfa. On poorer irrigated land that produces 50-70 hu corn, one can expect 3-5 T alfalfa. Alfalfa has higher water requirements for peak yields than most other crops. It may not reach its full potential yield in any part of the stale without …

Bringing Nature Into The Zoo: Inexpensive Solutions For Zoo Environments, David Hancocks

Zoos and Aquariums Collection

Animals in captivity have traditionally been kept in sterile and inappropriate environments. Typically this situation still prevails in zoos. Cages are designed only for restraint of the animals, expediency for the public, and convenient maintenance by keepers. The animals' behavioral needs are often ignored. By using nature as a norm, and by using natural materials, the spatial and temporal environment of a captive animal can be easily and greatly enriched. Several examples which have been used at Woodland Park Zoological Gardens are discussed. Their application and expansion are appropriate for most urban zoos.

Animals In Education: The Use Of Animals In High School Biology Classes And Science Fairs, Heather Mcgiffin, Nancie Brownley

ANIMALS IN EDUCATION is the proceedings of the conference, "The Use of Animals in High School Biology Classes and Science Fairs," held September 27-28, 1979 in Washington, D.C. which was sponsored by The Institute for the Study of Animal Problems, 2100 L Street, N.W., Washington, D.C. in connection with The Myrin Institute for Adult Education, 521 Park Avenue, New York, N.Y. 10021.

The Determination Of Trace Levels Of Aluminum By Differential Pulse Polarography, Geraldine S. P. Ritchie, Alan M. Posner, Ian M. Ritchie

Food Science and Nutrition

The direct determination of aluminium in aqueous solutions by differential pulse polarography is described. If the pH is carefully controlled to 4.00 ± 0.01, there is a linear relationship between the peak height of the polarographic wave and the aluminium concentration up to 2.5 × 10^-5 mol dm^-3. The coefficient of variation is about 4% at the 10^-5 mol dm^-3 level. With increasing aluminium concentrations, the relationship ceases to be linear, and above 9 × 10^-5 mol dm^-3, the peak splits, probably because of hydrolysis and polymerisation. Na⁺, NH_{4 …}

Update On Rapidrise Yeast, Georgia C. Lauritzen Ph. D

Archived Food and Health Publications

Factsheet talks about RapidRise yeast and the benefits to using it.

Effect Of Dietary Carbohydrates And Biotin Level On Cecal Size And Biotin Concentration Of Growing Chickens, Kathleen Bauer, P. Griminger

Department of Nutrition and Food Studies Scholarship and Creative Works

Growing chickens were fed three levels of biotin, 0, 20, and 100 micrograms/kg diet, and four different carbohydrates, glucose, dextrin, sucrose, and sorbitol, in order to study the effect of dietary carbohydrates on the level of cecal biotin. Dietary sorbitol was found to enhance the concentration of cecal biotin at suboptimal levels of dietary biotin, while dietary dextrin had the opposite effect. When the dietary requirement of biotin was met, cecal biotin greatly increased in the presence of dietary glucose, sorbitol, and sucrose but remained at a low level when dextrin was the dietary carbohydrate. Dietary sorbitol increased significantly the …