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Articles 91 - 97 of 97
Full-Text Articles in Physical Sciences and Mathematics
Some Hydrographic Conditions Found In Winter In Lower Chesapeake Bay And Their Possible Effects On The Blue Crab (Callinectes Sapidus Rathbun) Population, John Strathern Macgregor
Some Hydrographic Conditions Found In Winter In Lower Chesapeake Bay And Their Possible Effects On The Blue Crab (Callinectes Sapidus Rathbun) Population, John Strathern Macgregor
Dissertations, Theses, and Masters Projects
No abstract provided.
Further Studies Of The Reactions Of Quinoxaline, 2-Methyl-, And 2,3-Dimethylquinoxaline, Chester E. Hamilton
Further Studies Of The Reactions Of Quinoxaline, 2-Methyl-, And 2,3-Dimethylquinoxaline, Chester E. Hamilton
Theses and Dissertations
A long term research program into the chemistry of quinoxalines has been instituted at Brigham Young University. The literature of quinoxaline chemistry was reviewed and assembled in one paper. Methods of preparation of 2,3-dimethyl- and 2- methylquinoxaline were studied and improved. The bromination of 2,3-dimethylquinoxaline using N-bromosuccinimide was accomplished and an anil addition using quinoxaline and phenyllithium was achieved. Efforts to prepare vinylquinoxalines were unsuccessful. In order to pursue an investigation into the numerous reactions of the 1,4 addition type, a method of preparations of vinyl-quinoxalines must be achieved. In the present investigation, various methods of synthesis of vinyl- and …
The Theory Of The Specific Heat Of A Body Centered Cubic Lattice, Curtis Cleveland Webster
The Theory Of The Specific Heat Of A Body Centered Cubic Lattice, Curtis Cleveland Webster
Masters Theses
"In normal crystalline solids the atoms are at rest in their lattice points at absolute zero of temperature. Increasing the temperature of the crystal increases the motion of the atoms about their lattice points. Approximately, each atom or ion may be treated as a harmonic oscillator. then from the equations of motion of the atoms, by the Born-von Karman theory of specific heats, the normal modes of vibration of the lattice can be expressed as the roots of a secular determinant. Application of this theory to determine the thermodynamic properties of crystals has resulted either in solutions that are inaccurate …
Ammonium And Alkylammonium Salts Of Carboxylic Acids As Characterizing Derivatives, Hal Gilbert Lankford
Ammonium And Alkylammonium Salts Of Carboxylic Acids As Characterizing Derivatives, Hal Gilbert Lankford
Masters Theses
"One of the methods widely used to establish the identity and purity of an organic compound is to prepare various derivatives, the properties of which have been reported in the literature. The object of this investigation was to prepare ammonium and alkylammonium salts of carboxylic acid and determine their utility as characterization derivatives. Should these salts meet the requirements of a satisfactory derivative, they would be particularly valuable from a standpoint time, since they are generally very quickly formed"--Introduction, page 1.
Digestion Studies With Sheep And Wild Antelope On A Sagebrush Ration, Paul Harold Kohler
Digestion Studies With Sheep And Wild Antelope On A Sagebrush Ration, Paul Harold Kohler
Electronic Theses and Dissertations
Introduction: Those who are responsible for the management of antelope, range livestock, and the range seek to maintain such a balance that al may thrive and reproduce. This is inevitably a difficult objective since the balance in numbers of antelope and livestock may be changed annually, but range flora changes only in long-time cycles. Therefore, the balance between the wild and domestic species and the range must be adjusted frequently by range and livestock management. The adjustment of the number of domestic animals to fit the carrying capacity of the range may be accomplished by changing management and marketing practices …
Pebbles In The Glacial Till Of Eastern North Dakota, Alice E. Russell
Pebbles In The Glacial Till Of Eastern North Dakota, Alice E. Russell
Theses and Dissertations
The paper is a study of twenty-three samples of glacial in eastern North Dakota. The samples were analyzed in terms of lithology, shape, and roundness. Graphs are given showing the relationships among the various factors. The graph are discussed and significance of the various factors affecting the pebbles are evalnated.
An Index To The Literature On Digenetic Trematodes From Fishes, Richard William Bond
An Index To The Literature On Digenetic Trematodes From Fishes, Richard William Bond
University of the Pacific Theses and Dissertations
The primary purpose of this compilation is to facilitate for pertinent literature in the searches involving digenetic trematodes from fines. The index may be used by the investigator to determine what, Af any, 14torature has appeared concerning the animal or group of animals with which he is working; and the literature is cross-indexed in such a way that it may be approached from the various angles commonly used in trematodes investigations. There are included, for example, an index to hosts, an index to larval stages of development and a partial geographic index to adult trematodes of fishes.