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Articles 157291 - 157320 of 159305
Full-Text Articles in Entire DC Network
Nebraska Bird Review (April 1960) 28(2), Whole Issue
Nebraska Bird Review (April 1960) 28(2), Whole Issue
Nebraska Bird Review
TABLE OF CONTENTS
Golden Eagles ......................18
History and Status of Introduced Game Birds In Nebraska ..........................19
A Day of Bird Banding ..........................23
A Robin Study in Kearney, Nebraska ..........................24
1959 Nesting Report ..........................27
Fredrick J. Adams ..........................28
General Notes ..........................29
Meetings ..........................30
Treasurers' Report.......................... 30
Letters to the Editor ..........................32
A Quantitative Study Of Sexual Behavior Of Mallards And Black Ducks, Paul A. Johnsgard
A Quantitative Study Of Sexual Behavior Of Mallards And Black Ducks, Paul A. Johnsgard
Papers in Ornithology
In recent years an increased interest in the use of behavioral characteristics in evolutionary studies has developed, and this is particularly true in the case of waterfowl. The classical studies of Heinroth (1911), who was one of the first to apply knowledge of waterfowl behavior to systematics, have been elaborated on by Lorenz (1941; 1951-1953) in his important contribution toward the understanding of relationships in the Anatinae. These, and other, studies have stressed the qualitative behavioral differences occurring among different species as providing possible isolating mechanisms through their presumed function of conveying species-specific recognition signals. To the present, no extensive …
Abstracts Of Recent Publications Of The Professional Staff Of The Henry Ford Hospital And The Edsel B. Ford Institute For Medical Research
Henry Ford Hospital Medical Journal
No abstract provided.
Some Aspects Of The Mechanics And Dynamics Of Blood-Bone Interchange, H. M. Frost
Some Aspects Of The Mechanics And Dynamics Of Blood-Bone Interchange, H. M. Frost
Henry Ford Hospital Medical Journal
No abstract provided.
Electronic Techniques In Medicine: The Eighth Edsel B. Ford Lecture, 1959, Vladimir K. Zworykin
Electronic Techniques In Medicine: The Eighth Edsel B. Ford Lecture, 1959, Vladimir K. Zworykin
Henry Ford Hospital Medical Journal
No abstract provided.
Comparative Studies Of Human Melanocytes In Skins Of Varying Degree Of Pigmentation, Funan Hu, Patricia F. Lesney
Comparative Studies Of Human Melanocytes In Skins Of Varying Degree Of Pigmentation, Funan Hu, Patricia F. Lesney
Henry Ford Hospital Medical Journal
No abstract provided.
The Role Of Ions In Muscle Excitation And Contraction, Raymond E. Fuller, William L. Morgan Jr.
The Role Of Ions In Muscle Excitation And Contraction, Raymond E. Fuller, William L. Morgan Jr.
Henry Ford Hospital Medical Journal
No abstract provided.
Saddleback Research Project Collection Tabulation, Dorwin Lovell
Saddleback Research Project Collection Tabulation, Dorwin Lovell
Jane Claire Dirks-Edmunds Documents
This student inventory of insects found on Saddleback Mountain is part of Dr. Jane Claire Dirks-Edmunds's ecological study of the area. The physical collection of the Dr. Jane Claire Dirks-Edmunds Papers (see collection information below) includes similar tabulations from multiple classes at Linfield, all documenting insect type and number found. Dr. Dirks-Edmunds compiled her students' research into various reports on her study's progress.
Dr. Dirks-Edmunds graduated from Linfield College in 1937; she returned to teach in the Biology department at Linfield from 1941-1974.
South Dakota Farm And Home Research, Agricultural Experiment Station
South Dakota Farm And Home Research, Agricultural Experiment Station
South Dakota Farm and Home Research: 1949 -1998
In This Issue
Housing Affects Laying Performance [p] 3
Tranquilizers for Dairy Cattle [p] 7
Vertical Integration in Agriculture [p] 10
Mucosal Disease [p] 16
Pelleting Roughage Rations [p] 20
Plowing Alfalfa [p] 22
More Profit for Wheat Farmers [p] 25
The Outlook for Agriculture in 1960 [p] 30
Preliminary Report: Monolayer Behavior Studies, 1959, Bureau Of Reclamation
Preliminary Report: Monolayer Behavior Studies, 1959, Bureau Of Reclamation
Publications (WR)
During the fall of 1959, monolayer behavior studies were made on two lakes in the southwest; Boulder Basin of Lake Mead, Nevada, and Lake Sahuaro near Phoenix, Arizona. These studies were made to evaluate the effect of geographical and climatological conditions on movement and behavior of monolayers. The Lake Sahuaro tests also were used to provide data for design and development of improved methods of application and maintenance of a film on this lake in anticipation of full scale, evaporation-reduction tests to be performed there during the summer of I960. The Lake Mead studies produced the following general points of …
Preliminary Survey Of The Algae Of Hubbel Pond Game Refuge (Becker County), Janet R. Stein
Preliminary Survey Of The Algae Of Hubbel Pond Game Refuge (Becker County), Janet R. Stein
Journal of the Minnesota Academy of Science
No abstract provided.
The Biology Of Heterostylum Rubustum (Diptera: Bombyliidae), A Parasite Of The Alkali Bee, George E. Bohart, W. P. Stephen, R. K. Eppley
The Biology Of Heterostylum Rubustum (Diptera: Bombyliidae), A Parasite Of The Alkali Bee, George E. Bohart, W. P. Stephen, R. K. Eppley
All PIRU Publications
No abstract provided.
Ticks Of The Genus Ixodes In Utah, Dorald M. Allred, D Elden Beck, Leland D. White
Ticks Of The Genus Ixodes In Utah, Dorald M. Allred, D Elden Beck, Leland D. White
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Front Matter, Vol. 1 No. 4
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
The Biology Of Nomia (Epinomia) Triangulifera With Comparative Notes On Other Species Of Nomia, Earle A. Cross, George E. Bohart
The Biology Of Nomia (Epinomia) Triangulifera With Comparative Notes On Other Species Of Nomia, Earle A. Cross, George E. Bohart
All PIRU Publications
No abstract provided.
End Matter, Vol. 1 No. 4
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
The Potential Production Of Furfural From Sulfite Spent Liquors, Dale Keiser
The Potential Production Of Furfural From Sulfite Spent Liquors, Dale Keiser
Paper Engineering Senior Theses
Summary
Furfural was obtained in significant amounts by the action of mineral acid on pentose sugars. Pentose sugars are present in Sulfite Spent Liquors because of the hydrolysis which takes place during the pulping. The dehydrating action of the acid on the pentoses takes place during the pulping. The dehydrating action of the acid on the pentoses takes place at about 100 degrees Centrigrade. The furfural was distilled from the raw acidified spent liquor and can be purified further by fractional distillation. Hardwood Sulfite Spent Liquors gave the highest yields. This is because hardwoods contain more five carbon sugars. A …
Descriptions, Biology, And Notes On The Identification Of Some Trogoderma Larvae, R. S. Beal Jr.
Descriptions, Biology, And Notes On The Identification Of Some Trogoderma Larvae, R. S. Beal Jr.
Ba
For several years members of the dermestid beetle genus Trogoderma have attracted widespread attention, particularly since T. granariurn Everts, the khapra beetle, became established as an introduced pest in Arizona, California, Mexico, and New Mexico. This species has been the object of a control program to remove it as a hazard to stored grain and to prevent its spread to parts of the country where it is not known to occur. Species of Trogoderma other than the khapra beetle may also build up to damaging numbers in stored products. Information has been obtained on these species, as well as on …
Distribution Of Native Mammals Among The Communities Of The Mixed Prairie, Edwin Perry Martin
Distribution Of Native Mammals Among The Communities Of The Mixed Prairie, Edwin Perry Martin
Fort Hays Studies Series
From October, 1952, until August, 1958, the small mammals on a relict area near Hays, Kansas, were studied. The observations were undertaken to establish a standard to which the mammals of variously disturbed areas could be compared; also, information concerning the relations of the species of mammals to the communities of the mixed prairie was sought.
Investigations Of Meiotic Chromosomes Of Six Genera In The Onagraceae, David P. Gregory, William M. Klein
Investigations Of Meiotic Chromosomes Of Six Genera In The Onagraceae, David P. Gregory, William M. Klein
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
Stimulation Of Cone And Seed Production In Pole-Size Loblolly Pine, M. Victor Bilan
Stimulation Of Cone And Seed Production In Pole-Size Loblolly Pine, M. Victor Bilan
Faculty Publications
No abstract provided.
Further Results Of Bud And Twig Pruning Of Loblolly Pine, M. Victor Bilan, C.F. Korstian
Further Results Of Bud And Twig Pruning Of Loblolly Pine, M. Victor Bilan, C.F. Korstian
Faculty Publications
No abstract provided.
Hybridization In The Anatide And Its Taxonomic Implications, Paul A. Johnsgard
Hybridization In The Anatide And Its Taxonomic Implications, Paul A. Johnsgard
Papers in Ornithology
Without doubt, waterfowl of the family Anatidae have provided the greatest number and variety of bird hybrids originating from both natural and captive conditions. The recent compilation by Gray (1958) has listed approximately 400 interspecies hybrid combinations in this group, which are far more than have occurred in any other single bird family. Such a remarkable propensity for hybridization in this group provides a great many possibilities for studying the genetics of speciation and the genetics of plumage and behavior, and it also provides a valuable tool for judging species relationships. It may generally be said that the more closely …
Enzymatic Sulfurylation Mechanisms, Irving Hyman Goldberg
Enzymatic Sulfurylation Mechanisms, Irving Hyman Goldberg
Student Theses and Dissertations
Sulfate activation and transfer to lipids, polysaccharides, and aminoalkyl phenols have been studied In a variety of biological systems. The transfer of S35O4 from radioactive 3'-phosphoadenoslne 5'-phosphosulfate (PAPS35) into lipid-soluble material has been investigated in cell-free preparations of rat brain and liver. In brain of 10-20 day old rats activity was found in the particulate fraction of the homogenate, whereas in young adult rat liver activity resided in the supernatant fraction (105,000 x g). In both systems incorporation was stimulated by the addition of a crude mixture of the isomers of N-acetyl sphingosine. Evidence accumulated …
The Biology Of A Colonial Hydroid, Chandler Montgomery Fulton
The Biology Of A Colonial Hydroid, Chandler Montgomery Fulton
Student Theses and Dissertations
Simple invertebrate metazoa offer many potentialities for study of growth and differentiation - potentialities which have not been realized because the organisms usually have been difficult to handle in the laboratory. A simple coelenterate, the brackish-water colonial hydroid Cordylophora lacustris, was selected for the present work, and was domesticated so that it could be grown and manipulated under controlled laboratory conditions. Methods have been developed permitting exponential increase in hydranth number with a doubling time of about three days. Five ions — Na+, K+, Ca++, Mg++, Cl- — have been found …
Insect Pests : Aphides, Clee Francis Howard Jenkins
Insect Pests : Aphides, Clee Francis Howard Jenkins
Journal of the Department of Agriculture, Western Australia, Series 4
THE members of the aphis family are remarkable creatures both in structure and habits.
They are practically world-wide in their distribution and despite their small size and apparent fragility they thrive under a wide variety of conditions and are among the most prolific breeders in the animal kingdom
Wild Dog Control In The North-West, R J. Fraser
Wild Dog Control In The North-West, R J. Fraser
Journal of the Department of Agriculture, Western Australia, Series 4
BECAUSE of its sparsely-settled condition, the North-West of Western Australia is almost an ideal breeding-ground and hunting-ground for wild dogs.
Even the best of the pastoral country is but thinly populated and there are large areas of rugged country which is seldom traversed by white men.
Honey Flora Calendar For September, R S. Coleman
Honey Flora Calendar For September, R S. Coleman
Journal of the Department of Agriculture, Western Australia, Series 4
A look at Flora available for September
Rabbit Control In 1960, C Marshall
Rabbit Control In 1960, C Marshall
Journal of the Department of Agriculture, Western Australia, Series 4
IN the year 1859, an enthusiastic sportsman in Victoria took delivery from the clipper "Lightning" of a small consignment of wild European rabbits which he joyfully released on his estate at Barwon Park, near Geelong, in order to assure himself of some rough shooting.
He was not the only rabbit importer on record—tame rabbits were brought into Australia before and after 1895 and doubtless there were other importations of the wild rabbit—but he is generally credited—or discredited—with having triggered off the rabbit plague.
Trees Of Western Australia. 63. Yellow Tingle (E. Guifoylei, Maiden). 64. Weeping Gum (E. Sepulcralis, F. Muell.). 65. Kingsmill's Mallee (E. Kingsmillii Maiden Et Blakely). 66. Hopetoun Mallee (E. Leptocalyx, W.F. Blakely). 67. Capped Mallee (E. Pileata, W.F. Blakely). 68. Eucalyptus Carnabyi (Blakely And Steedman). 69. Tallerack (E. Tretragona (R.Br.) F. Muell.). 70. Eucalyptus Micranthera (F. Muell. Ex. Benth.), Charles Austin Gardner
Journal of the Department of Agriculture, Western Australia, Series 4
THE yellow tingle is one of the large forest trees of the lower South-West, and although it possesses many good qualities, its limited range renders it of less importance than its associates—the jarrah and karri.