Physical Sciences and Mathematics Commons^™

The Coronary Distribution Zone : Mathematical Modelling Of The Left Ventricular Epicardial Surface For Area Calculation, Three-Dimensional Rotaton And Display, S. Matts E. Sjölander

Loma Linda University Electronic Theses, Dissertations & Projects

A computer model of the left ventricular (LV) epicardial surface was developed from Jang’s truncated ellipsoidal model, which has a minor to major axis ratio of 6:10. The model was applied in calculating the area of a segment of the myocardium, jeopardized by an impending occlusion of its associated artery. The endangered segment of the LV muscle was also visualized in different projections by rotations in three space and graphical displays simulating the three dimensions.

The area formula for the surface of the ideal model , a truncated prolate spheroid, was derived and used in producing maps for manual calculations …

The Effect Of Natural Measures To Aid In Sleep As Compared With The Use Of Flurazepam 30 Milligrams As Seen In The Hospitalized Male Patient, Myra Ladd Thompson

Loma Linda University Electronic Theses, Dissertations & Projects

Sleep is necessary for physical and psychological restoration of the body. Studies indicate that tissue repair is augmented during sleep, showing that rates of protein synthesis and of mitotic division are higher at times of rest and sleep. Studies evaluating sleep-deprived subjects reveal that after loss of normal sleep, some types of memory and learning processes are impaired. These subjects generally become anxious and irritable, especially after loss of dreaming sleep.

Sleeping medications have been implicated by observers and researchers to be a cause of altered sleep patterns. These medications not only disrupt normal sleep cycles, but their continued use …

An Analysis Of The Attitudes Of Unlicensed Personnel In San Bernardino Metropolitan Area Convalescent Hospitals Toward Their Jobs And The Geriatric Patients, Theodore G. Sneed

Loma Linda University Electronic Theses, Dissertations & Projects

In American society, convalescent facility residency is a fact of life for many of the aged. Typically, in these geriatric facilities, eighty to ninety percent of primary patient care services are delivered by unlicensed personnel. Unfortunately, this segment of the convalescent facility employee population tends to be transient, underpaid and overworked, and to feel very low esteem for themselves and their jobs. This situation has produced many service abuses and interaction difficulties in the convalescent facilities. Up until the present there has been little attempt on the part of Sociology to study this portion of the employee population in these …

A Study Of The Physiological And Mental Effects Of Various Shift Patterns On Registered Nurses, Carolyn Taylor Smith

Loma Linda University Electronic Theses, Dissertations & Projects

The effects of shift work on circadian I an rhythms has become a subject of great Interest to many industries, hospitals, and sleep researchers. More and more recognition is being given to the results of these studies, especially the possible adverse effects on those working the night shift or a shift they are unable to adapt to adequately. Only a few of these studies, however, have been conducted on registered nurses, a major group involved with shift work.

The purpose of the present study was to investigate the effects on nurses working the a.m. shift (7 a.m. to 3:30 p.m.), …