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Theses/Dissertations

Rockefeller University

1969

Articles 1 - 11 of 11

Full-Text Articles in Life Sciences

Contributions To The Theory Of Non-Equilibrium Thermodynamics, Ronald Forrest Fox Jan 1969

Contributions To The Theory Of Non-Equilibrium Thermodynamics, Ronald Forrest Fox

Student Theses and Dissertations

No abstract provided.


Cellular Activities During Aging In Mammals, Caleb Ellicott Finch Jan 1969

Cellular Activities During Aging In Mammals, Caleb Ellicott Finch

Student Theses and Dissertations

Although much is known about manifestations of ageing in mammals, the fundamental cause of ageing has remained obscure. Review of a widely scattered literature has demonstrated a histotypic selectivity in the effect of ageing on cell activitjes. Several recent examples have shown that certain age changes in cell activities can be reversed by transplantation to a young host. Thus, ageing does not appear to diminish the potential for genomic function. The selective and reversible age changes in cell activities are interpreted to be the result of a differential change in gene activity, which appears to be mediated at the supra-cellular …


The Structure And Replication Of Semliki Forest Virus, A Mosquito-Borne Animal Virus, Nicholas Hill Acheson Jan 1969

The Structure And Replication Of Semliki Forest Virus, A Mosquito-Borne Animal Virus, Nicholas Hill Acheson

Student Theses and Dissertations

Semliki Forest virus is a group A arthropod-borne virus which contains RNA and possesses a lipoprotein envelope. It can be transmitted among animals by mosquitoes in which it multiplies, but its natural host is not known. The virus grows to high titer in a number of types of vertebrate cells in culture. The growth of Semliki Forest virus was studied with the electron microscope during a single cycle of viral replication in chick embryo cells. The spherical virus particle consists of a nucleoid, or nucleocapsid, 280 A in diameter, closely wrapped in an envelope which consists of a unit membrane …


Some Problems Connected With The Boltzmann Equation, Francisco Alberto Grunbaum Jan 1969

Some Problems Connected With The Boltzmann Equation, Francisco Alberto Grunbaum

Student Theses and Dissertations

Consider a dilute gas composed of a very large number of molecules moving in space according to the laws of classical mechanics, and colliding in pairs from time to time, Assume that we can disregard all external effects, such as gravity, so that the motion is completely specified by giving the intermolecular forces.


Radiative Corrections To Low Energy Theorems, Ta-Pei Cheng Jan 1969

Radiative Corrections To Low Energy Theorems, Ta-Pei Cheng

Student Theses and Dissertations

A general method is presented for evaluating, in a model - independent way, the soft virtual photon radiative corrections to an arbitrary hadronic process. It is shown that all the results concerning infrared divergence s obtained within the theory of quantum electrodynamic s of the electron-photon system are, in fact, exact in strong interactions. The problem of radiative corrections to low-energy theorems is the primary concern of this investigation.


Protein Polysaccharides From Bovine Nasal Cartilage Interactions With Glycoproteins And The Formation Of Aggregates, Vincent C. Hascall Jr Jan 1969

Protein Polysaccharides From Bovine Nasal Cartilage Interactions With Glycoproteins And The Formation Of Aggregates, Vincent C. Hascall Jr

Student Theses and Dissertations

Proteinpolysaccharides are macromolecules which consist primarily of chondroitin-4-sulfate associated with non-collagenous protein. They constitute about half of the dry weight of adult bovine nasal cartilage; the remaining material is predominantly collagen.


Factors Affecting Translation Of Messenger Rna's In Vitro: Use Of A Gtp Analogue To Investigate Rates Of Polypeptide Chain Elongation, Fred Russell Kramer Jan 1969

Factors Affecting Translation Of Messenger Rna's In Vitro: Use Of A Gtp Analogue To Investigate Rates Of Polypeptide Chain Elongation, Fred Russell Kramer

Student Theses and Dissertations

The order of addition of amino acids to a growing protein is determined by the codon sequence of a messenger RNA molecule. This translation process was studied in vitro with a cell-free protein synthesis system derived from Escherichia coli. The rate of protein synthesis was proportional to the amount of messenger RNA added to the system. However, it was observed that different messenger RNA's were not equally effective in promoting protein synthesis. Experiments were conducted to determine why the rate of protein synthesis depends on the type of messenger RNA.


The Golgi Complex Of The Hepatogyte: Isolation And Partial Enzomological Characterization, John Heiman Ehrenreich Jan 1969

The Golgi Complex Of The Hepatogyte: Isolation And Partial Enzomological Characterization, John Heiman Ehrenreich

Student Theses and Dissertations

The elements of the Golgi complex of the hepatocyte are characterized by their content of 30-80m osmiophilic particles, which have been identified by others as very low density lipoprotein. The vast majority of such particles in the cell are in the elements of the Golgi complex. Moreover, the number in the complex can be increased still further by acute ethanol intoxication. This light lipoprotein content afforded the opportunity to isolate a purified fraction of Golgi-derived vesicles from the liver cell, since the content itself would make these vesicles lighter than vesicles derived from other intracellular sources (which do not contain …


I. Solution Photochemistry Of Camphor Ii. Synthesis And Solution Photochemistry Of 2, 2-Dimethylcyclobutanone, David Kent Herron Jan 1969

I. Solution Photochemistry Of Camphor Ii. Synthesis And Solution Photochemistry Of 2, 2-Dimethylcyclobutanone, David Kent Herron

Student Theses and Dissertations

No abstract provided.


The Arrangement Of The Disulfide Bonds In A Γg Immunoglobulin Molecule, William Einar Gall Jan 1969

The Arrangement Of The Disulfide Bonds In A Γg Immunoglobulin Molecule, William Einar Gall

Student Theses and Dissertations

No abstract provided.


Viral Inhibition Of Mammalian Cell Dna Synthesis, William D. Ensminger Jan 1969

Viral Inhibition Of Mammalian Cell Dna Synthesis, William D. Ensminger

Student Theses and Dissertations

No abstract provided.