Digital Commons Network^™

Some Aspects Of The Symbionts Of Cassiopeia Frondosa, Dolores Ahles O.S.F.

Journal of the Minnesota Academy of Science

Symbiodinium microadriaticum were found localized in the mesoglea of Cassiopeia, the upside-down jellyfish. Axenic cultures of the symbiont were produced, utilizing chemically defined media. Studies of the life cycle established the presence of isogametes which had previously been postulated. Reactions to various bands of the spectrum were noted, and tolerance tests for survival in darkness and under temperature stress were carried out. Nutritional experiments established nitrates as the best nitrogen source and verified the fact that vitamins B12 and Thiamine, though not essential far life, hove a stimulating effect on the growth and motility of these zooxanthellae.

A Bull Snake Encounter With Young Ground Squirrels, Orrin J. Rongstad

Journal of the Minnesota Academy of Science

Apparent results of on encounter of a bull snake, Pituophis catenifer, with a litter of three thirteen-lined ground squirrels, Citellus tridecemlineatus, suggests that bull snakes may have eliminated young ground squirrels from a 3-acre lawn of the Cedar Creek Natural History Area at Bethel, Minn., during the summer of 1967.

Distribution And Abundance Of Molluscs In A Fresh Water Environment, Peter Moyle, James Bacon

Journal of the Minnesota Academy of Science

The molluscs of o northwestern Minnesota lake were sampled using transects, a sampling frame, and SCUBA. The species sampled were: Amnicola limosa, Valvata tricarinata, Gyraulus parvus, Physa cf. P. gyrina, Helisoma anceps, H. campanulata, Promenetus exacuous, Ferrissia parallela, Anodonta marginata, Lampsilis siliquoidea, and Sphaerium cf. S. striatum. The unionid clams, the adult Helisoma spp. and the Physa adults were associated with the absence of aquatic vegetation. Distinct associations of snail species were found with each plant association: G. parvus and V. tricarinata with the deep water Nitella opaca association, A. limosa and V. tricarinata with the mid-depth mixed macrophyte association, …

Characteristics Of Four Marl Lakes As Related To Biological Productivity, J. E. Maloney, John Dobie, John B. Moyle

Journal of the Minnesota Academy of Science

Physical and chemical characteristics of four dimictic eutrophic lakes of northcentral Minnesota with marl deposits are discussed in relation to production of invertebrate animals (benthos and plankton) that are the basic food of fish . Two of the lakes have a history as "productive" fish lakes and the other two as "problem" fish lakes. The "productive" lakes, as a type, have a larger surface area, a longer shallow-water littoral shelf, and a lower proportion of marly soils in the littoral zone than do the "problem" lakes. The standing crop of invertebrates was about twice as great per habitat unit in …

Natural Selection In A Leopard Frog Population, David J. Merrell

Journal of the Minnesota Academy of Science

In a population of immature leopard frogs (Rana pipiens) at Mud Lake, Washington County, Minnesota, a high frequency of unilateral deformity of the hind legs was observed in 1965. Metamorphosis from tadpole to frog took place during July, and samples in late July averaged 14.8% deformed frogs. By late September, the frequency of deformed frogs had decreased to 3.6%, presumably as the result of natural selection.

Front Matter, Vol. 9 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Taxonomic Review : Miridae Of The Nevada Test Site And The Western United States, Harry H. Knight

Brigham Young University Science Bulletin, Biological Series

Approximately 5,000 specimens of plant bugs were collected at the Nevada Test Site between 1959 and 1965. Greatest emphasis was given to collecting from June 10–24, 1965, when the desert areas at the test site were unusually profuse with blooming vegetation. A total of 160 species representing 50 genera was taken at the test site. Of these, 7 genera and 96 species are new to science.

Comparative data for these and additional species from other parts of western North America are also included. These represent an additional 449 species, of which 5 genera and 148 species are new to science. …

A Micro Modification Of The Automatic Determination Of Serum Iron / Donald D. Clarke Nd Ruth Nicklas, Donald Dudley Clarke Phd, Ruth Nicklas

Chemistry Faculty Publications

No abstract provided.

Fluorofumarate - A Substrate For Fumarate Hydrotase / Donald D. Clarke William J. Nicklas John Palumbo Department Of Chemistry Fordham University Bronx, New York 10458, Donald Dudley Clarke Phd, William J. Nicklas, John Palumbo

Chemistry Faculty Publications

No abstract provided.

Compartmentation Of Glutamic Acid Metabolism In Brain Slices / S. Berl, W.J. Nicklas, And D.D. Clarke Department Of Neurology, College Of Physicians And Surgeons, Columbia University, Department Of Chemistry, Fordham University, New York, Soll Berl, William J. Nicklas, Donald Dudley Clarke Phd

Chemistry Faculty Publications

(1) Compartmentation of glutamate metabolism in brain cortex previously observed only in vivo, has now been demonstrated in vitro. This was shown by using [U-14C]aspartate and [U-14C]glutamate as tracer substrates. (2) Preparation and maintenance of the slices at 0° resulted in reversible inhibition of glutamine synthesis. Preincubation at 37° for 10 min or preparation of the slices at room temperature partially overcame this inhibition. (3) Transfer to fresh medium after preincubation had an added stimulatory effect on glutamine synthesis. (4) Incubation in high K+ medium (27 mM) altered the relative specific activity of glutamine. (5) The data are in keeping …

The New Course At Muresk Agricultural College, D K. Bartels

Journal of the Department of Agriculture, Western Australia, Series 4

THE original aim of all the agricultural colleges in Australia was to train young men to be farmers.

Over the years, and particularly in recent years, the colleges in the Eastern States found that less and less of their students were coming from the farming community, and a diminishing number were returning to farming.

Ua77/1 Western Alumnus, Vol. 36, No. 2, Wku Alumni Relations

WKU Administration Documents

Magazine created by WKU Alumni Relations reporting on activities of WKU faculty, staff, students and alumni.

• Adams, Robert. Evolution of Student Government at Western
• Westerners in State Government - Louie Nunn, Howes Meade, Tom Emberton, Harold Kelly, William Hazelrigg, Lynn Frazer, Frank Groschelle, Robert Miller
• Mounce, Robert. Study of Religion at Western is an Intellectual Inquiry - Philosophy & Religion
• New Microscope Adds to the Study of Science
• Many Innovations Initiated in Physical Education Study
• Well-Known Speakers Challenge Students - Rodes-Helm Lecture Series
• Given, Ed. Former Hilltopper Greats Hit the Athletic Big Time - Clem Haskins, Darel Carrier, Bobby Rascoe, …

Lamb Mortality On Agricultural Research Stations, K P. Croker

Journal of the Department of Agriculture, Western Australia, Series 4

Progress report of a study of lamb losses in experimental flocks on Department of Agriculture research stations in the agricultural areas.

THE major barrier to increased production by the West Australian sheep and wool industry is the shortage of sheep in the agricultural areas of the State, and much research has been directed towards overcoming this shortage.

The Certified Strains Of Subterranean Clover : Their Origin, Potential Use And Identification, B J. Quinlivan, C. M. Francis, M. L. Poole

Journal of the Department of Agriculture, Western Australia, Series 4

SUBTERRANEAN CLOVER originated in the countries surrounding the Mediterranean Sea and in parts of Western Europe.

Therefore it is not surprising that it grows well in the agricultural districts of Western Australia, for these regions have a typically Mediterranean climate with cool wet winters and hot dry summers.

The Amended Brands Act, M R. Gardiner

Journal of the Department of Agriculture, Western Australia, Series 4

DURING the past year many changes have been introduced into the Brands Act to adapt legislation to modern conditions.

This article summarizes the new requirements for the guidance of the farming community.

Cyanogenetic Plants Of Western Australia, T E H Aplin

Journal of the Department of Agriculture, Western Australia, Series 4

THIS article deals with the more important cyanogenetic plants found in Western Australia.

It also deals with plants which have not been proved as cyanogenetic but which do produce toxic effects similar to those produced by cyanogenetic plants.

Symptoms, post mortem appearances and the treatment for affected stock are also dealt with.

This Could Happen Here : If Foot-And-Mouth Disease Came To Western Australia, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

THE first outbreak would probably be on a piggery not far from a major port. But it might also appear among cattle or sheep in a similar area, or even on a cattle station in the North.

Mastitis In Western Australian Dairy Cattle, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

IN 1964/65, as a first step towards a State-wide mastitis control programme, the Department of Agriculture undertook a survey of mastitis in West Australian dairy herds.

The survey was designed to obtain a clear picture of the incidence and severity of the disease and is the most comprehensive mastitis survey carried out in Australia.

Invertebrate Fauna And Environment Of Deposition Of The Niobrara Formation (Cretaceous) Of Kansas, Halsey W. Miller

Fort Hays Studies Series

This paper reevaluates, and where desirable, synonymizes species. Previously unrecorded species are described and illustrated. The environment of the Niobrara Formation in Kansas is described. The author collected specimens in Scott, Logan, Gove, Trego, Rooks and Phillips Counties, Kansas.

West Midlands Development : Pastures For Sandplain Soils, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

TRIALS at the Badgingarra Research Station have indicated that many pasture species will grow in the West Midlands area.

Choice of the species most suited to any particular locality will be influenced by soil type, rainfall, grazing characteristics and possible ill-effects on stock.

The following species have been recommended.

Bluetongue Of Sheep, M R. Gardiner

Journal of the Department of Agriculture, Western Australia, Series 4

BLUETONGUE is a serious disease of sheep, mainly of introduced European breeds, throughout the African continent.

It is maintained there by wild and domestic ruminants in the presence of certain insect vectors (carriers).

The disease has probably existed there from immemorial times among the indigenous ruminants, emerging as a recognised disease only when the much more susceptible European breeds were brought into the continent.

Wheat In Development Programmes For New Esperance Farmers, R J. Doyle, G. D. Oliver

Journal of the Department of Agriculture, Western Australia, Series 4

IN the December, 1967, issue of the Journal of Agriculture, we reported on five development budgets for the Esperance region.

The aim of the exercise was to find out if a new settler concentrating on sheep, with $20,000 available for development after acquisition of land, could make a reasonable living for himself and his family while developing his farm.

Renin Granularity In The Mouse Kidney, R. Williams Soller

Senior Scholar Papers

Briefly. the rennin-angiotensin-aldosterone triangle can be thou ht of as a regulator of renal perfusion. Renin, released by the kidney in response to any threat in its perfusion n, acts on its substrate to produce angiotensin I, a mild vasoconstrictor which by means of plasma converting enzymes secretes angiotensint II. This latter product not only stimulates aldosterone output by the adrenals, but also supports the animals’ blood pressure. With aldosterone binding at the distal tubules in the kidney and this causing increased sodium retention, restoration of renal perfusion occurs – a phenomenon which shuts off the original signal for rennin …

Land Resource Evaluation - Ninety Mile Tank Report On Trials Conducted 1968, 1969 And 1970 By Plant Research Division And Wheat And Sheep Division, J W. Gartrell

Experimental Summaries - Plant Research

In the late 1920's the seven million acres of virgin land between Hyden and Salmon Gums were considered for settlement under the "3,500 farms scheme" because it constituted "practically the only large area of wheat lands in a suitable climatic zone not then settled in Australia" (Teakle 1939). At that time the sandy scrubplain soils were more a liability than an asset because methods of profitably farming the light soils had not then been evolved. These useless scrubplains merely increased the distances between patches of' more f'ertile soils. The scheme for settlement was based mainly on the potential of' the …

A Brief History Of The Namru-3 Medical Zoology Program, Harry Hoogstraal

United States Naval Medical Research Unit 3: Publications

The NAMRU-3 Medical Zoology program began during Easter week of 1950. We had just closed the NAMRU-3 field station at Torit, in Equatoria Province of soulheastern Sudan, and were heading homeward to the United States. However, the offer to remain in Egypt for a year or two to develop a Medical Zoology department at NAMRU-3 provided an interesting challenge after working for several years in tropical forests and grasslands of Africa and other continents. We shall briefly describe subsequent events under four headings: (1) Medical Zoology in Egypt, (2) Ticks and Tickborne Diseases of the World, (3) Kala Azar in …

The Hydroxamate Reaction Of Aminoacyl-Trna Synthetases, David Ian Hirsch

Student Theses and Dissertations

Amino acids are activated as aminoacyladenylates which remain bound to the aminoacyl-tRNA synthetases that catalyze their formation. The activated amino acids are then esterified to specific transfer RNA molecules. By this reaction sequence, the specificity and energetics necessary for polypeptide synthesis are conferred upon the amino acids. The first method of determining acyl group activation was the hydroxamate assay. The activated amino acids can be trapped as the stable amino acid hydroxamates by carrying out the activation reactions in high concentrations of hydroxylamine. This thesis comprises a study of the hydroxamate reaction of the aminoacyl-tRNA synthetases. Each of fourteen partially …

Mechanisms Of Target Discrimination By The Echolocating Bat, Vampyrum Spectrum, Jack Winningham Bradbury

Student Theses and Dissertations

Five specimens of the neotropical false-vampire bat, Vampyrum spectrum, were studied in an attempt to decide whether they were capable of discriminating between targets of differing shapes and sizes using echolocation alone. The study commenced with the demonstration that the bats could capture live mice, items similar to their normal prey, without recourse to visual or olfactory cues. The subsequent use of dead mice in place of live ones indicated that target identification was much more difficult for the bats when the mice were not moving, but could still be effected by some of them. Bats were then trained to …

Phosphoproteins Of The Cell Nucleus: Metabolism And Characterization, Lewis Joel Kleinsmith

Student Theses and Dissertations

This thesis is concerned with the chemistry and metabolism of the phosphorylated proteins which are found localized in cell nuclei. The studies focus first on phosphoprotein metabolism as it occurs in the intact nucleus under varying conditions, and then on the chemistry and enzymology of a phosphoprotein fraction which has been extracted and purified from isolated nuclei. The metabolism of phosphoproteins was studied in isolated calf thymus nuclei employing P³²-orthophosphate as a tracer. These isolated nuclei incorporate this isotope into nuclear proteins, which yield phosphoserine and phosphothreonine on hydrolysis. Protein phosphorylation is energy dependent, and occurs after the …

The Structure And Replication Of A Parainfluenza Virus, Richard W. Compans

Student Theses and Dissertations

The simian parainfluenza virus SV5 is a member of myxovirus subgroup II, which includes parainfluenza, mumps, and Newcastle disease viruses. These viruses are 120-500 mμ in diameter, and consist of an envelope covered with surface projections and an internal ribonucleoprotein component which is a single-stranded helix, 150-180 A in diameter, A high yield of infective SV5 is produced by primary cultures of rhesus monkey kidney (MK) cells, and the virus-cell interaction is moderate: infected cells divide normally, exhibit little cyctopathic effect, and cellular macromolecular synthesis is not inhibited. An electron microscopic study of SV5 replication in MK cells was undertaken. …

The Isolation And Characterization Of Soluble Brain Proteins, Gudrun Staub Bennett

Student Theses and Dissertations

The experiments described in this thesis were undertaken in order to define and purify proteins that might have a specific function in nerve activity. The studies were limited to rat brain proteins soluble in dilute aqueous buffers at neutral pH. Fractionation procedures for these proteins and two means of identifying individual proteins of interest in the fractions were developed. The soluble proteins were divided into two classes according to their solubility in mildly acidic conditions: the pH 5 soluble and pH 5 insoluble fractions. Two different large anatomical areas of the brain referred to as "cortex" and "brainstem," contained the …