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Articles 158251 - 158280 of 159291
Full-Text Articles in Entire DC Network
Range Land Of America And Some Research On Its Management, Laurence A. Stoddart
Range Land Of America And Some Research On Its Management, Laurence A. Stoddart
Faculty Honor Lectures
Although grazing of livestock has been a practice and a profession of man almost from his beginning only recently has range management reached anything approaching a pre~ cise science. Although ' trials and errors over the years brought to light much practical methodology for assuring high production from grazing land, still it remained for the plant physiologist and ecologist to find the whys and wherefores, and to advance new methods and new thoughts which promise to increase productivity still further and at the same time maintain the great range resource.
The peculiar land situation that marked America in her forma~ …
Kentucky Warbler (Vol. 21, No. 2), Kentucky Library Research Collections
Kentucky Warbler (Vol. 21, No. 2), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Studies On The Riboflavin Content Of Cheese, I. L. Hathaway, H. P. Davis
Studies On The Riboflavin Content Of Cheese, I. L. Hathaway, H. P. Davis
Nebraska Agricultural Experiment Station: Historical Research Bulletins
The riboflavin concentrations of twenty-seven kinds of cheeses and cheese spreads were determined by feeding these products to rats whose body stores of riboflavin had been depleted by being fed a riboflavin-deficient diet. Fifteen experiments were made in which 1,223 rats were used. The results obtained varied from 13.5 to 1.2 micrograms of riboflavin per gram of cheese (or spread). The samples of Goat, Velveeta, Mel-0-Pure, and Liederkranz had the highest concentrations of riboflavin while the samples of Cream and Pimento Cream had the lowest concentrations.
Progress Report On The Ground-Water Resources Of The Las Vegas Artesian Basin, Nevada, George B. Maxey, C. Harry Jameson
Progress Report On The Ground-Water Resources Of The Las Vegas Artesian Basin, Nevada, George B. Maxey, C. Harry Jameson
Publications (WR)
Whether the tremendously increased population acquired by Las Vegas in the years 1940 to 1942 will be retained cannot at present be foretold. However, the valley will undoubtedly be expected to support a considerably larger population than it did at any time prior to 1940, and continually increasing demands on the water supply for innumerable pcacetimc activities must be anticipated. Therefore, a sound evaluation of tho ground water resources of Las Vegas Valley is directly in line with the other wisely progressive planning programs which are now operating or are taking shape in the valley as well as in the …
The Effect Of Adrenaline Injection On Glycogenolysis And Glycogenesis In Rat Livers, Virginia Mary Zingsheim
The Effect Of Adrenaline Injection On Glycogenolysis And Glycogenesis In Rat Livers, Virginia Mary Zingsheim
Bachelors’ Theses
Present day knowledge concerning the liver is derived from many sources and the accumulation of many methods of investigation. Sugar, which is needed by the body for energy, is stored in the liver as glycogen. Claude Bernard (26), an eminent physiologist, was the first to suspect that carbohydrates were stored in the liver. Faulty glycogen synthesis and hydrolysis results in one of our most widespread diseases, diabetes. Thus, many biochemists and physiologists have tried to find the mechanism of the process, and the primary and secondary facts which affect glycogenesis and glycogenolysis. Although the chemical secretions and hormones of such …
Making Permanent Mounts Of Fern Gametophytes, Gail Seeraphine Barczak
Making Permanent Mounts Of Fern Gametophytes, Gail Seeraphine Barczak
Bachelors’ Theses
One of the botanists first to grow fern gametophytes from spores whicch were sown on moist clay was Farlow (1874), a student of the famous botanist, DeBary, professor of Botany at the University of Strassburg in Germany. Farlow sowed the spores of Ptteris cretica var. albo-lineata on moist clay placed into small flower pots. Watering was accomplished from the top. There was no sterilization of the culture medium. The gametophytes of this fern were also grown under the same conditions by DeBary (1878). Steil (1919a) grew the prothalli of Ptteris sulcata and Ptteris cretica var. albo-lineata in the same manner …
Yields And Consumption Of Forage In Three Pasture-Types: An Ecological Analysis, R. W. Darland, J. E. Weaver
Yields And Consumption Of Forage In Three Pasture-Types: An Ecological Analysis, R. W. Darland, J. E. Weaver
Department of Agronomy and Horticulture: Faculty Publications
Native pastures in eastern Nebraska and adjacent states have undergone profound changes as a result of drought. Bluestems (Andropogon) and associated grasses have been thinned and weakened, although recovery has been marked since 1941. In many pastures they were replaced by western wheat grass (Agropyron smithii) or other invading species. In nearly all, wheat grass now occurs in considerable abundance. Kentucky bluegrass (Paa pratensis), into which many overgrazed native pastures had degenerated, was almost completely killed by the drought, or greatly damaged as in western Iowa. Despite these widespread changes, few studies have been made on the relative yields, preferences …
Bulletin No. 315 - Biennial Report, 1942-1944
Bulletin No. 315 - Biennial Report, 1942-1944
UAES Bulletins
The war years have made new demands on Station personnel and facilities. With fewer staff members and less adequate equipment the Station has not only carried on the regular project work, but the research program has been expanded, and numerous activities resulting from the emergency have been assumed.
The Station has taken a leading place in the victory food production program. Each year it has assumed the lead in a study of the wartime agricultural production capacity of the state and desirable crop and livestock adjustments studying all the agricultural assets and the ability to produce various crops.
As a …
Controlling The Ph Of Cultures Of Penicillium Notatum Through Its Carbon And Nitrogen Nutrition, Albert E. Dimond, George L. Peltier
Controlling The Ph Of Cultures Of Penicillium Notatum Through Its Carbon And Nitrogen Nutrition, Albert E. Dimond, George L. Peltier
Department of Plant Pathology: Faculty Publications
A survey of published material reveals relatively little information concerning the nutritional physiology of Penicillium notatum Westl. on synthetic media. Metabolism studies of P. notatum on various media have appeared to be incidental to the more pressing problem of producing penicillin quickly and in quantity. Fleming (1929) originally used a nutrient broth non-synthetic in nature. The Oxford group (Abraham et al., 1941) then adopted a modification of the so-called Czapek-Dox synthetic medium which supplies nitrogen as sodium nitrate and glucose as carbohydrate. Hobby, Meyer, and Chaffee (1942) suggested that brown sugar be substituted for glucose in this nutrient, with …
A Study Of Factors Influencing The Hydrolysis Of Corn Amylopectin By Barley Malt Enzymes., Thelma Munsey Back 1918-2006
A Study Of Factors Influencing The Hydrolysis Of Corn Amylopectin By Barley Malt Enzymes., Thelma Munsey Back 1918-2006
Electronic Theses and Dissertations
No abstract provided.
Abstracts Of Source Materials On The Conservation Of Our Natural Resources., Eunice Wheeler Duncan
Abstracts Of Source Materials On The Conservation Of Our Natural Resources., Eunice Wheeler Duncan
Electronic Theses and Dissertations
No abstract provided.
A Study Of Sugar Cane Rootstock Weevil (Anacentrinus Subnudus, Buch.)., Bancherd Balankura
A Study Of Sugar Cane Rootstock Weevil (Anacentrinus Subnudus, Buch.)., Bancherd Balankura
LSU Historical Dissertations and Theses
No abstract provided.
Physiological Effects Of Sulphur On The Chick And Its Value In Coccidiosis Prevention., Ollie Edward Goff
Physiological Effects Of Sulphur On The Chick And Its Value In Coccidiosis Prevention., Ollie Edward Goff
LSU Historical Dissertations and Theses
No abstract provided.
Studies Of Mississippi Algae With Special Reference To Water Supplies., Richard Lee Caylor
Studies Of Mississippi Algae With Special Reference To Water Supplies., Richard Lee Caylor
LSU Historical Dissertations and Theses
No abstract provided.
A Second Revision Of The Seaside Sparrows, Ludlow Griscom
A Second Revision Of The Seaside Sparrows, Ludlow Griscom
Occasional Papers of the Museum of Natural Science, Louisiana State University
No abstract provided.
Geographic Variation Of Bewick Wrens In The Eastern United States, John W. Aldrich
Geographic Variation Of Bewick Wrens In The Eastern United States, John W. Aldrich
Occasional Papers of the Museum of Natural Science, Louisiana State University
No abstract provided.
Geograpical Variation In The Red-Bellied Woodpecker In The Southeastern United States, Thomas D. Burleigh, George H. Lowery Jr.
Geograpical Variation In The Red-Bellied Woodpecker In The Southeastern United States, Thomas D. Burleigh, George H. Lowery Jr.
Occasional Papers of the Museum of Natural Science, Louisiana State University
No abstract provided.
The Bird Life Of The Gulf Coast Region Of Mississippi, Thomas D. Burleigh
The Bird Life Of The Gulf Coast Region Of Mississippi, Thomas D. Burleigh
Occasional Papers of the Museum of Natural Science, Louisiana State University
No abstract provided.
Kentucky Warbler (Vol. 20, No. 4), Kentucky Library Research Collections
Kentucky Warbler (Vol. 20, No. 4), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Poultry Progress: How Long Should A Chicken Live?, F. E. Mussehl
Poultry Progress: How Long Should A Chicken Live?, F. E. Mussehl
Nebraska Agricultural Experiment Station: Historical Circulars
Increased laying flock mortality has disturbed thoughtful hatcherymen, producers, processors, and research workers for several years, and very properly so, because hens which die before their time serve no useful purpose, except to raise in our minds the question, "Why?"
Seeding Grass On Deteriorated Aspen Range, A. Perry Plummer, George Stewart
Seeding Grass On Deteriorated Aspen Range, A. Perry Plummer, George Stewart
Aspen Bibliography
The herbaceous undercover on much of the aspen range in the Intermountain region is badly deteriorated. These areas, naturally highly productive, when revegetated can contribute greatly towards a much needed supply of range forage. One of the major obstacles to successful seeding has been the difficulty of getting the seeds covered with soil since both standing and fallen trees interfere with the use of drills, harrows, or other machinery. In the search for methods to overcome this difficulty, it was found that for open aspen stands the covering of seeds is unnecessary when the right precautions are taken in other …
A Cyto-Genetical Study Of Habronbracon Juglandis, Joan Meyer
A Cyto-Genetical Study Of Habronbracon Juglandis, Joan Meyer
Bachelors’ Theses
A cyto-gentical study was attempted of the males of the Ichneumonoid wasp Habrobracon juglandis (ashm.) The larval of this wasp are parasitic on the larval of a flour moth Ephestid kuekniella (zeller). The males of this wasp were disected and slides were made of the testes. Different staining techniques were used in order to determine which ones would give the best results.
The Development Of Bone In The Chick Embryo, Helen M. Koelsch
The Development Of Bone In The Chick Embryo, Helen M. Koelsch
Bachelors’ Theses
The day by day development of the bone in the chicken embryo as determined by the fixing and staining of embryos for each twenty-four hour growth period during the time of greatest skeletal development, is the subject of this paper. The stage in the embryological history of the chick during which the most important phases of bone development occur was determined to be the period between the seventh and the sixteenth days of incubation. It is therefore the purpose of this investigation to give an account of the growth and development of the bones of the ordinary domestic fowl as …
Histology Of The Stomach Of The Common Green Snake, Thamnophis Sirtalis, Lois Doerfler
Histology Of The Stomach Of The Common Green Snake, Thamnophis Sirtalis, Lois Doerfler
Bachelors’ Theses
This is another in the series treating the histology of the digestive tract of the reptile. Very little comparative work has been done on the digestive system as a whole and less attention has been paid to the stomach. Kendall (1940) and Cole (1941) devote a slight discussion to a general description of the reptilian stomach. The following report is a more detailed microscopic investigation of the anatomy of the stomach of one of the common species of snakes...
The Utilization Of Grasses And Forbs In Relation To The Intensity Of Grazing In The Mixed Prairie Near Hays, Kansas, Noel Runyon
The Utilization Of Grasses And Forbs In Relation To The Intensity Of Grazing In The Mixed Prairie Near Hays, Kansas, Noel Runyon
Master's Theses or Doctor of Nursing Practice
The principal occupation of the inhabitants in the Great Plains Region is livestock farming. The problems confronting the farmers and ranchers of this large area are many and varied. Not the least of these problems is the one of a proper stocking rate for the various types of ranges in order to secure a maximum production with the least in capital outlay and range deterioration. Another problem that has presented itself in recent years is the one of revegetating thousands of acres of marginal and semi-marginal land so that mother nature may again heal the marks of erosion and bring …
Kentucky Warbler (Vol. 20, No. 3), Kentucky Library Research Collections
Kentucky Warbler (Vol. 20, No. 3), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
A Review Of Recent Advances In Chemotherapy, Arnold H. Maloney
A Review Of Recent Advances In Chemotherapy, Arnold H. Maloney
Faculty Reprints
No abstract provided.
A Review Of Recent Advances In Chemotherapy, Arnold H. Maloney
A Review Of Recent Advances In Chemotherapy, Arnold H. Maloney
College of Medicine Faculty Publications
No abstract provided.
A Discussion Of Histological Technique With Special Reference To Double And Triple Staining, Margaret J. Mckinney
A Discussion Of Histological Technique With Special Reference To Double And Triple Staining, Margaret J. Mckinney
Biology Honors Papers
This 18 page thesis discusses the process of fixing, dehydrating and clearing tissues, as well as the effects of various types of dyes and staining methods.