1950-1959 Dissertations (MU)https://hdl.handle.net/10355/675702024-03-28T17:19:12Z2024-03-28T17:19:12ZThe metabolism and localization of glycerol by bovine spermatozoaPickett, B. Whttps://hdl.handle.net/10355/163562022-10-06T21:04:14Z1958-01-01T00:00:00ZThe metabolism and localization of glycerol by bovine spermatozoa
Pickett, B. W
Since the discovery that glycerol, a trihydroxy alcohol, would provide protection for spermatozoa during the freezing and thawing process, many questions have arisen concerning its metabolism and mode of action. Most of the recent work, with various types of single cells ans tissues, has shown that the cells are permeated by glycerol and that entry must occur before full protection is afforded. However, the methods employed in the majority of these studies have not proven successful for bovine spermatozoa, possibly due to its extremely inflexible cellular membrane and/or the slow rate at which glycerol enters the cell. The majority of the information concerning glycerol entry into bovine spermatozoa bas been supplied by metabolic studies. These studies have indicated that glycerol is metabolized by spermatozoa both anaerobically and aerobically in quantities too large to attribute the action to extracellular enzymes alone. However, relatively little information is available concerning the intracellular loci of glycerol action. Thus, this investigation was undertaken to provide additional information concerning the metabolism and localization of glycerol in the bovine spermatozoa.
The discovery that glycerol would protect spermatozoa during freezing and thawing led to questions concerning its metabolism and mode of action; especially bovine spermatozoa, due to its inflexible cellular membrane. This investigation provides additional information concerning the metabolism and localization of glycerol in the bovine spermatozoa.; Digitized from microfilm. Printed single-sided. Blank pages removed from digital copy.
1958-01-01T00:00:00ZThe survivals of medieval religious drama in New MexicoMartin, Charles B.https://hdl.handle.net/10355/877812024-01-03T21:57:20Z1959-01-01T00:00:00ZThe survivals of medieval religious drama in New Mexico
Martin, Charles B.
Every year in many remote villages in New Mexico people gather at Christmas and Easter to witness dramatic productions of Biblical stories concerning these two seasons. Although these religious performances have taken on many new characteristics through the centuries, they are not, as many critics think, a new and quaint form of folk drama but instead are a curious remnant of a very old form of religious drama which was transported from medieval Spain to colonial Mexico and finally up the Rio Grande valley to New Mexico. Certainly these plays have come a long way from their medieval ancestors, the religious mysteries that were part of the 'liturgical services within the church, and have disintegrated and beoome secularized through their transmission from the church to the laity. Of the ten extant plays in New Mexico today, three treat subjects from the Old Testaments Adam y Eva, Cain y Abel, and Lucifer y San Miguel. Plays of Adam and Eve and Cain and Abel were not new, having been presented in Mexico, Spain, and central Europe. Five of the extant plays present subjects from the New Testaments El Coloquio de San Joa, Los Pastores, Auto de los Reyes Magos, El Nino Perdido, and La Pasion. There are two others not liturgical in origin, which can be traced back to the Middle Ages, Los moroa y loa cristianos and las Cuatro Apariciones de la Virgen de Guadalupe....
1959-01-01T00:00:00Z