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Front Matter, Vol. 8 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Studies Of Cesium-137 Metabolism By Blatta Orientalis In Various Thermal Environments, Tsin Fu Chuang

Biology ETDs

The effect of temperature on cesium-137 metabolism in the oriental cockroach, Blatta orientalis, was studied. Adult and nymphal animals were fed cesium-137 to investigate the biological half-time, excretion rate, retention curve and distribution of the isotope among body tissues.

Metabolic rate studies at different temperatures showed an exponential relationship between oxygen consumption and temperature. The Q₁₀ was 2.56 for adults and 2.20 for nymphs in the 10 C – 35 C range.

Cesium-137 elimination rate increased as environmental temperature increased. The Q₁₀ for cesium-137 elimination was constant (1.2) over the 15 C – 35 C range and greatly …

Endangered And Threatened Wildlife And Plants: Proposed Endangered Status For The American Burying Beetle

Endangered Species Bulletin

The Service proposes to determine endangered status for the American burying beetle (Nicrophorus americanus) and thereby provide the species protection under the Endangered Species Act of 1973, as amended. Once widely distributed throughout eastern North America, this species has disappeared from most of its former range. Two known populations currently exist, one in eastern Oklahoma and the other on an island off the coast of New England. Despite extensive efforts to locate additional populations, only two specimens have been found elsewhere in more than 10 years. The cause of the species’ decline is unknown. Critical habitat is not …

Northern Geographic Limits Of Four Species Of Desert Rodents In The Rio Grande Valley., Antonio L. Gennaro

Biology ETDs

Pour species of desert rodents were studied 1n the Rio Grande Valley of New Mexico in an effort to detect the factor or factors excluding each one from areas north of their ranges. Their distributions were analyzed in relation to climate, vegetation, soil texture, and biotic competition.

The cactus mouse (Peromyscus eremicus) and rock pocket mouse (Perognathus intermedius} seem to be limited by temperature. Each is saxicolous and inhabits rocky outcrops as far north as certain isotherms for average annual maximal temperature, these being 71 F for£. eremicus and 69 F for~. intermedius. Occasionally the former inhabits nonrocky sites, but …

Forestry Bulletin No. 11: Silviculture Of Longleaf Pine, Laurence C. Walker, Harry V. Wiant Jr.

Forestry Bulletins No. 1-25, 1957-1972

A discussion of issues surrounding the management, reproduction and nutrition of the Longleaf Pine.

Front Matter, Vol. 8 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Mites Of Utah Mammals, Dorald M. Allred, D Elden Beck

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 8 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

South Dakota Farm And Home Research: 79th Annual Report To South Dakotans (Fall 1966), Agricultural Experiment Station

South Dakota Farm and Home Research: 1949 -1998

Contents:
Agricultural Engineering [p] 4
Agronomy [p] 6
Animal Science [p] 9
Bacteriology [p] 11
Botany [p] 13
Dairy Science [p] 14
Economics [p] 16
Entomology-Zoology [p] 18
Home Economics [p] 20
Horticulture-Forestry [p] 21
Plant Pathology [p] 22
Poultry Science [p] 24
Rural Sociology [p] 25
Station Biochemistry [p] 26
Veterinary [p] 28
Wildlife [p] 29
Substations [p] 31
Staff Publications [p] 32
Financial Statement [p] 37
Agricultural Advisory Groups [p] 38
Staff [p] 39
Pasture Research Center [p] 42-43

Whole Issue Nebraska Bird Review (October 1966) 34(4)

Nebraska Bird Review

Table of Contents

Comparative Arrival Dates of Selected Migratory Birds in Selected Counties in Nebraska .................. 66

Sandhill Crane Casualties in the Blizzard of March 22, 1966 ........ 69

Ross' Geese in Nebraska ................................... 70

Mourning Dove Nesting Success and Nest Site Selection in a Sandhill Region of Nebraska ....................71

Possible Nesting McCown's and Chestnut-Collared Longspurs in Northwest Nebraska ............................ 75

Book Reviews ..................................................... 75

Notes ............................................................ 76

Index of Volume XXXIV ................................................. 78

Mosquitoes Of The Cheyenne Bottoms Waterfowl Management Area, Barton County, Kansas, John J. Janovy Jr.

John J. Janovy, Jr. Publications

Studies of the local biology of eleven species of mosquitoes in a prairie marsh in central Kansas revealed that "floodwater" species (Aedes dorsalis, A. nigromaculis, A. sollicitans, A. vexans, Psorophora ciliata, P. cyanescens) formed a major portion of the total mosquito population and were the principal pests after early June. Culex tarsalis was the most numerous single species and was captured in large numbers even during the hot, dry period from mid-July to late August. Culiseta inornata was plentiful in early spring and fall, but virtually absent from late May to mid-September. Culex pipiens, Orthopodomyia signijera, and …

Sporicidal Efficiency Of Dimethyl Sulfoxide, Various Disinfectants, And Their Combinations For Four Strains Of Bacillus, William L. Lappenbusch

Biology ETDs

This study was concerned with the sporicidal efficiency of dimethyl sulfoxide (DMSO), various disinfectants, and their combinations or complexes. Spores of Bacillus subtilis var. niger (globigii), Bacillus cereus, Bacillus subtilis (5230), and Bacillus stearothermophiluswere used to demonstrate the sporicidal activity of DMSO, phenol, Clorox, phenylmercuric nitrate, silver nitrate, Roccal, merthiolate, and iodine. Dimethyl sulfoxide has been shown in the past to enhance the penetration of neighboring substances which it encounters whether it be by the formation of a complex or by a reservoir effect in which DMSO causes a change in the osmotic concentrations on either side of a semipermeable …

Review Of Protozoology, 5th Ed., By Richard R. Kudo (Thomas, Springfield, 1966), John J. Janovy Jr.

John J. Janovy, Jr. Publications

Review of Protozoology, 5th edition, by Richard R. Kudo, published by Thomas, Springfield, 1966.

Uterine Artery Constriction In Pregnancy And Experimental Hypertension: A Concept, A Technique, C. Paul Hodgkinson, A. A. Hodari

Henry Ford Hospital Medical Journal

No abstract provided.

A Comparative Electrophoretic Study Of The Triatoma Rubida Complex (Hemiptera: Reduviidae: Triatominae), Robert R. Adams

Loma Linda University Electronic Theses, Dissertations & Projects

A taxonomic study of the Triatoma Rubida Complex was conducted at the subspecific and hybrid levels using cellulose acetate electrophoresis to differentiate proteins in the hemolymph.

The following studies were conducted and results obtained: Laboratory-induced bleeding over a 4-week period markedly lowers the total protein of the bugs studied. Patterns obtained from chicken-fed and rabbit-fed bugs, although similar, showed some noticeable differences. Pathological-appearing bugs demonstrated protein patterns that varied greatly from the patterns obtained of normal bugs. The protein patterns obtained from hemolymph of 4th and 5th instar nymphs were quite similar, except for distance of migration. The computer was …

Host And Prophage Modifications Of Ultraviolet Induction In Salmonella Potsdam, Bela B. Toth

Loma Linda University Electronic Theses, Dissertations & Projects

In induction experiments with naturally occurring and artificially lysogenic strains of S. potsdam, cells were irradiated in buffer, transferred to complete medium, and then assayed for free phage. Irradiation was followed by half hourly samples for free phage from the growing populations of irradiated cells. For an estimation of burst sizes, the irradiated cells were diluted out to a final concentration of 1 cell per ml and distributed to tubes in 0.5 ml quantities. All assays were done by the top-layer method with streptomycin incorporated in the top-layer and SP2-str^r as the bacterial indicator. The non-lysogenic strain S. …

Biochemical Properties Of Salmonella Potsdam Bacteriophage P4/2, Clyde L. Roggenkamp

Loma Linda University Electronic Theses, Dissertations & Projects

Over 90% recovery of phage P4/2 was realized with differential centrifugation concentration and purification, whereas only about 16% was recovered from the aqueous two-phase polymer - Genetron - ECTEOLA-cellulose column system. Purity of preparations was greatest with the density gradient centrifugation (A₂₆₀ = 2.66 and A₂₈₀ = 1.80 per 10¹² plaque-forming units). With the chemical system of concentration and purification followed by an ECTEOLA anion exchange run, the A₂₆₀ was 6.6 and the A₂₈₀ was 4.3.

Three tests were employed to determine the configuration of P4/2 DNA: (1) a formalin denaturation test, (2) a thermal …

The Sphaerodactylus Decoratus Complex In The West Indies, Richard Thomas, Albert Schwartz

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 7 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

A Comparative Approach Into The Differentiation Of Two Strains Of Staphylococci, Walter D. Hoeksema

Masters Theses

Introduction

The purpose of this investigation was to differentiate Staphylococcus aureus phage type 42D from Staphylococcus epidermidis.

The investigation involved four approaches to this differentiation. The first was a selective screening technique on specific media to point out physical and biochemical characteristics and to demonstrate the presence of specific enzymes. The second was a drug survey which was used to show basic susceptibility and resistance to ten different antibiotics. The third was ultra-violet irradiation which was used to discern susceptibility and resistance to the soft rays of this spectrum segment. The fourth was a chromatographic procedure using labeled carbon which …

The Effects Of Estrogenic And Gonadotrophic Hormones On Normal Levels Of Some Blood Chemical Constituents In The Non-Breeding Female Mallard Duck, Wendell F. Hofman

Masters Theses

Introduction

In past years, a substantial amount of research has centered on the levels of certain blood chemical constituents in birds, particularly in chickens and pigeons. However, little has been recorded concerning the blood chemical constituents of the mallard duck, Anas platyrhynshos. Likewise, the effects of hormones on its blood chemistry, in conjunction with its reproductive system, have been almost totally unexplored. Therefore, this study, conducted from October 14, 1965, to March 3, 1966, had as its purpose the determination of normal quantitative levels of certain blood chemical constituents (the electrolytes--calcium, sodium, potassium; the proteins--albumin and globulin; and lipids) and …

Isolation Of A Toxic Substance From Centaurea Repens, Merton E. Sprengel

Loma Linda University Electronic Theses, Dissertations & Projects

A poisonous steroid-type compound was isolated from Centaurea repens. After extraction with absolute ethanol, removal of the solvent, addition of 2% HCl to precipitate the pigments, and filtering, the pH was adjusted to 9 with aqueous anunonia. This solution was exhaustively extracted with chloroform, evaporated to dryness, and extracted with ethyl ether.

This fraction was chromatographed on silica-gel plates, using 10:1 1,2-dichloroethane-methanol as the developer. The band at Rf 4.2 was removed and found toxic to mice. Labored, slow, gasping respiration and frequent involuntary muscular contractions became apparent within a few minutes following the intraperitoneal injection into each animal. Death …

Front Matter, Vol. 7 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

An Ecological Life History Of Budsage In Western Utah, Benjamin W. Wood

Theses and Dissertations

The ecological life history of budsage (Artemisia spinescens D.C. Eaton) was investigated during 1963 and 1964. The field studies were conducted at the Desert Experimental Range in Millard County, Utah. Laboratory studies were done at Brigham Young University. The different community types in which budsage grows were described and the physical site factors, viz. climate, soil texture, total soluble salts, hydrogen ion concentration of the soil, carbonate content and soil moisture were investigated. Phenology of seedlings, root systems, shoot and flower development, and plant longevity were investigated. Studies were also made on the effects of different seasons and intensities of …

Isolation, Identification And Antibiotic Sensitivity Of Enteric Obligate Anaerobes In Cases Of Gastro-Enteritis, Gordon E. Newlin

Biology ETDs

Organisms capable of living in the absence of atmospheric oxygen were first described in 1861. However, it was not until almost forty years later that anaerobes were discovered to be associated with the human body. From 1900 until the present, most work with anaerobes concerned media and methods to promote the growth of these organisms. Their classification has been attempted, but their taxonomy still remains in a state of confusion. Rarely, and only in rather obvious cases, has the pathogenicity of these organisms been investigated. Consequently, these organisms and their relationship to pathogenicity remain relatively unknown to bacteriologists today.

Whole Issue Nebraska Bird Review (July 1966) 34(3)

Nebraska Bird Review

Table of Contents

An Early Record of the Ross' Goose in Nebraska ...................46

The Sixty-Fifth Annual Meeting................... 47

Notes ...................49

In Memoriam - A. M. Jones ...................49

1965 (Eighth) Fall Record Report ...................50

Correction to 1963 Fall Record Report ...................58

Honorary Member - Alfred M. Bailey ...................59

Book Reviews................... 59

1965 Nest Card Survey ...................61

Studies On The Effects Of Commercial Detergents On Cucumber And Barley, Marylu Elizabeth Mudd

Masters Theses

Introduction

The fact that large quantities of detergents daily are being added to our water table and the appearance of billows of foam at the shores of many inland bodies of water have caused alarm among biologists and sanitation engineers. However, few observations of the effects of synthetic detergents on living organisms other than bacteria have been recorded.

The purpose of these studies was (1) to determine the effects of several commercial non-biodegradable detergents, Tide, Dreft, and Alconox, and one biodegradable detergent, Living, upon the germination and root elongation of seeds of a monocotyledon, barley (Hordeum vulgare L.) and a …

Development, Verification, And Use Of Methods To Model Chemical And Thermal Processes Lakes Mead And Powell, Bureau Of Reclamation

Publications (WR)

PURPOSE The purpose of the proposed research is to quantify the effects that Lakes Mead and Powell have on the salinity in the Colorado River system, and to evaluate changes that cap be made to the operating system of the reservoirs (within legal/institutional constraints) to enhance salt precipitation and/or minimize evaporation within the reservoirs. The effect of any changes (i.e., selective withdrawal uses, pumped storage, etc.) on reservoir evaporation could also be evaluated with a goal of minimizing evaporation. This will be accomplished through the development of a mathematical model of the reservoirs as described below. BACKGROUND Two major problems …

Records Of Bats From Western North Dakota, J. Knox Jones Jr., Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

From June 16 to 19 and again from June 24 to 29, 1965, a field party from the Museum of Natural History of The University of Kansas collected mammals along the Little Missouri River at a place 1 mi. S and 1 mi. W Medora, Billings Co., North Dakota. Among the specimens collected were representatives of five kinds of bats, including one species unreported from North Dakota, a subspecies unrecorded from there, and two species known previously from the state by a single specimen each.

A Preliminary Report On The Pennsylvanian Canyon Carbonates In North Central Texas, James E. Brooks, Peter Bretsky Jr.

Journal of the Graduate Research Center

The Canyon Group comprises an alternating sequence of limestone and shale formations, with sandstone members being common in the shales. The entire succession is crudely cyclic. Within the thickest limestone formation, the Winchell, detailed petrographic studies have shown the existence of regular vertical changes in texture. Three textural units occur, each commencing with arenitic textures at the base and grading upward to lutitic textures in the upper portion. These have been traced over several units and are believed to be referrable to regular changes in the depositional interface of the Winchell Bank with respect to energy base.