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Loma Linda University Electronic Theses, Dissertations & Projects

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Articles 1321 - 1350 of 1807

Full-Text Articles in Medicine and Health Sciences

Depression And Non-Responsive Behavior Displayed By Low Socio-Economic Latino Mothers In An Urban Child And Youth Clinic, Raquél María Aguayo Jun 1977

Depression And Non-Responsive Behavior Displayed By Low Socio-Economic Latino Mothers In An Urban Child And Youth Clinic, Raquél María Aguayo

Loma Linda University Electronic Theses, Dissertations & Projects

During the researcher's experience as a public health nurse, she became aware of two types of depressed women. The first type is the withdrawn, weeping, self-isolating woman while the second type cited numerous physical complaints which prevented her from caring for her home and children. Both exhibited non-responsive behavior to her children's needs.

The purpose of this study was to determine whether or not low socio-economic latino mothers displaying non-responsive behavior had levels of depression different than low socio-economic latino mothers displaying responsive behavior.

Non-responsive behavior Is defined as an inability to utilize clinic services appropriately for health by exhibiting …


The Effects Of Systematic Relaxation On The Number Of Times Pain Medication Was Administered To Immobilized Traction Patients, Brenda Carol Armstrong Jun 1977

The Effects Of Systematic Relaxation On The Number Of Times Pain Medication Was Administered To Immobilized Traction Patients, Brenda Carol Armstrong

Loma Linda University Electronic Theses, Dissertations & Projects

[Abstract Not Included]


Xeroradiography & Conventional Radiography : Comparative Imaging Of The Temporomandibular Joint, Nelson R. Gatov Jun 1977

Xeroradiography & Conventional Radiography : Comparative Imaging Of The Temporomandibular Joint, Nelson R. Gatov

Loma Linda University Electronic Theses, Dissertations & Projects

An investigation was conducted to evaluate the application of Xeroradiography for imaging the Temporomandibular Joint using the Updegrave and Weinberg positioning boards and to compare these images to those obtained by conventional radiography using the same positioning boards.

A cadaver head in which three spherical radiopaque implants had been placed was used in this study. A General Electric Model 1000 (Dental Unit) was the source of radiation. The conventional radiographs were produced on Dupont Cronex 2DC film and processed by a Phillips 810 automatic processed by a Xerox "125 System".

MAGNIFICATION

A comparison of the implant sphere diameters and the …


A Scanning Electron Microscope Study Of Fractured Orthodontic Wires, Dale G. Fessenden May 1977

A Scanning Electron Microscope Study Of Fractured Orthodontic Wires, Dale G. Fessenden

Loma Linda University Electronic Theses, Dissertations & Projects

In the practice of orthodontics much time is spent each week replacing broken appliances. However, very little research has been done to study the cause of orthodontic wire failure. A few articles have reported the incidence of removable appliance failures but only one article has reported research concerning the failure of fixed appliance wires.

There has been much speculation concerning the contributing factors for premature wire failure. The concensus is that fatigue is a major factor in their fracture. There are three basic types of wire failure: ductile, fatigue, which ends in ductile rupture, and brittle failure. Ductile failure is …


The Effect Of Seed Sprouting Time And Light On Phytic Acid Concentration, Sheryl J. Learned May 1977

The Effect Of Seed Sprouting Time And Light On Phytic Acid Concentration, Sheryl J. Learned

Loma Linda University Electronic Theses, Dissertations & Projects

Phytic acid was quantitatively analyzed in sprouted alfalfa, lentil, mung bean and soy bean seeds. Pulverized dry seeds served as a control and the various sprouting times were 12, 24, 48 and 72 hours after a 12 hour soaking. A comparison was made between sprouts grown in the light for the last 24 hours vs sprouts kept in darkened areas for the total growing time.

Analysis was based on dry weight and utilized the direct method in which 1) phytic acid was extracted by hot HC1, 2) ferric phytate was precipitated by adding an excess of ferric chloride to the …


Relationship Between Some Demographic Characteristics And Adverse Reactions Experienced By Women Undergoing A Therapeutic Abortion While Awake, Karen K. House May 1977

Relationship Between Some Demographic Characteristics And Adverse Reactions Experienced By Women Undergoing A Therapeutic Abortion While Awake, Karen K. House

Loma Linda University Electronic Theses, Dissertations & Projects

With the liberalization of abortion laws by the Supreme Court in 1973, American women have been able to obtain therapeutic abortions in hospitals and out-patient clinics in ever increasing numbers. With the increased number of women seeking abortions the medical field has responded with abortion procedures that are safe and relatively quick. With the speed doctors use to perform the procedure, many women may wish to take advantage of the medically safer method of abortion under local anesthesia. However, some women are unable to withstand the psychological and physical stress associated with a therapeutic abortion while awake. It would be …


Cephalometric Objectives For The Maxillary Central Incisor, John Mickey Damerell May 1977

Cephalometric Objectives For The Maxillary Central Incisor, John Mickey Damerell

Loma Linda University Electronic Theses, Dissertations & Projects

A cephalometric study was conducted to determine the ideal inclination of the maxillary central incisor for various facial patterns. Selected measurements were made on lateral headplate tracings of three samples: ideal, random and Class III malocclusions. Statistical analysis of data included means, standard deviations, simple correlations and stepwise regressions.

The Frankfort plane was found to be the most reliable reference plane when measuring the inclination of the maxillary central incisor. The maxillary central incisor inclination was found to be dependent upon the lower incisor position and inclination, chin position and the anterior cranial base inclination. A formula was produced to …


Relationships Between Personality Factors And Job Satisfaction And Importance For Operating Room And Surgical Unit Staff Nurses, Darla J. Anderson May 1977

Relationships Between Personality Factors And Job Satisfaction And Importance For Operating Room And Surgical Unit Staff Nurses, Darla J. Anderson

Loma Linda University Electronic Theses, Dissertations & Projects

This comparative study was designed to explore relationships between personality factors and the satisfaction and importance of selected job factors for staff nurses employed in the operating room and on surgical units. The forty-six subjects were female, registered nurses who were employed full-time either in the operating room or on the surgical units of a 516-bed medical center.

The conceptual basis for the study was found in the motivational theories of Maslow, Herzberg, and Argyris, which ail point to the higher level of satisfaction experienced by individuals who have the opportunity to fulfill their needs for personal growth.

The literature …


Community Health Nurse Influence On Retiree Health Planning, Patricia Hora May 1977

Community Health Nurse Influence On Retiree Health Planning, Patricia Hora

Loma Linda University Electronic Theses, Dissertations & Projects

The number and percent of the population over the age of 60 in the United States is increasing. The majority of these people (96%) are functioning in their own homes (Shanas, 1965). Physical health is important to the enjoyment and utilization of the added years of life. Therefore it seems important to find ways to meet the older citizen before the time of illness and help him/her to develop health goals and plans that will facilitate an optimal level of functioning and improve the quality of life.

The purpose of this study was to describe a method of intervening at …


A Comparison Of A Step-By-Step Versus An All-In-One Approach In Teaching Plaque Control, Charles R. Woofter Mar 1977

A Comparison Of A Step-By-Step Versus An All-In-One Approach In Teaching Plaque Control, Charles R. Woofter

Loma Linda University Electronic Theses, Dissertations & Projects

Using plaque scores as the measurement criterion, two different methods of teaching plaque control skills were tested. Based on initial plaque scores, 25 patients with periodontal disease were paired and divided into two groups: a "step-by-step" and "all-in-one" group. The subjects of both groups were given four one-half hour appointments of instruction. Members of the "step-by-step" group were taught in three successive appointments a horizontal scrub toothbrushing method, how to floss and how to use the Perio Aid. All members of the "all-in-one" group were taught how to use all three oral hygiene instruments at the first appointment. No additional …


Apical Closure Induction Using Bone Growth Factors And Mineral Trioxide Aggregate, Kenneth W. Tittle Mar 1977

Apical Closure Induction Using Bone Growth Factors And Mineral Trioxide Aggregate, Kenneth W. Tittle

Loma Linda University Electronic Theses, Dissertations & Projects

This study compared the ability of three different bone growth factor combinations with that of Ca(OH)2 to stimulate apical closure as well as the effectiveness of Mineral Trioxide Aggregate (MTA) as an apical barrier. Fifty-six roots of second and fourth mandibular premolars of seven six- month old beagle dogs were used. Periradicular lesions were created over a four week period. The canals were cleaned and shaped and filled with Ca(OH)2 for one week. They were then irrigated and received one of seven different treatments in a balanced design. Growth factors were placed in a carboxymethylcellulose carrier and delivered …


Role Of Cytochrome P-450 In Methemoglobin Formation By Primaquine With Hamster Liver Microsomes, Tommy L. Hicks Mar 1977

Role Of Cytochrome P-450 In Methemoglobin Formation By Primaquine With Hamster Liver Microsomes, Tommy L. Hicks

Loma Linda University Electronic Theses, Dissertations & Projects

The role of cytochrome P-450 in in vitro methemoglobin formation by primaquine was investigated through a series of experiments with golden-Syrian hamsters, treated before sacrificing with phenobarbital or 20-methylcholanthrene to increase the cytochrome P-450 content or with cobaltous chloride to cause its decrease. To determine the extent of induction in the liver microsomal cytochrome P-450-dependent mixed-function oxidases, cytochrome P-450 content and formaldehyde from the 0-demethylation of p-nitroanisole were measured. A 90% increase occurred in cytochrome P-450 content with phenobarbital pretreatment and an increase of 102% was observed in p-nitroanisole 0-demethylation. Formaldehyde from primaquine increased 64%. The methylcholanthrene treatment produced a …


A Comparative Analysis Of Tests For Central Auditory Function And Tests For Auditory Processing, Lynnee C. Luckett Feb 1977

A Comparative Analysis Of Tests For Central Auditory Function And Tests For Auditory Processing, Lynnee C. Luckett

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of the present investigation was to determine whether there was a relationship between the results obtained from tests of auditory language performance and those obtained from tests of central auditory performance. The performances of ten learning disabled children were compared with the performances of ten normal achievers on the six auditory language subtests of the Illinois Test of Psycholinguistic Abilities and the staggered spondaic word test and Willeford's tests of central auditory processing abilities. The two groups were matched according to sex, age, and socioeconomic status. Only children having normal peripheral hearing and an IQ within normal range …


A Comparison Of Overbite Relapse To Age, Interincisal Angle And Lower Face Height In Class Ii Deepbite Cases, James E. Macalpine Jul 1976

A Comparison Of Overbite Relapse To Age, Interincisal Angle And Lower Face Height In Class Ii Deepbite Cases, James E. Macalpine

Loma Linda University Electronic Theses, Dissertations & Projects

Patients with deep skeletal or dental bites before treatment have been noted to have a greater tendency towards relapsing to this deepbite following orthodontic treatment than do patients whose malocclusion showed a more ideal overbite relationship before treatment.

This study utilized patients selected from Rocky Mountain Data Systems for their deepbite trends. Three areas were compared to overbite relapse, 1) age, 2) interincisal angle 3) lower face height.

Results of this study indicate that overbite cases that have the most problems in retention were skeletal deepbites. This study also indicates that there was no disadvantage to early treatment, that the …


Computer Assisted Electron Spin Resonance Spectral Analysis Of Trapped Radicals, Philip Mook Wah Law Jun 1976

Computer Assisted Electron Spin Resonance Spectral Analysis Of Trapped Radicals, Philip Mook Wah Law

Loma Linda University Electronic Theses, Dissertations & Projects

A set of general purpose FORTRAN IV programs have been written during this study to assist in the analysis of complex spectra. An interactive approach is adopted, utilizing the computer and graphics terminals of the Scientific Computation Facility at Loma Linda University. Some procedures carried out are inversion, coordinates scaling, smoothing, differentiation and integration, correction for slanting baseline, addition and subtraction, and spectral simulation.

As an application, the programs are used to assist in the study of free radicals in gamma-irradiated single crystals of 1,2,3,- benzene tricarboxylic acid dihydrate by electron spin resonance spectroscopy. Is is found that the predominant …


The Effect Of Planned Physical Activities On Deficient Motor Skills In Head Start Preschool Children, Darlene L. Robinson Jun 1976

The Effect Of Planned Physical Activities On Deficient Motor Skills In Head Start Preschool Children, Darlene L. Robinson

Loma Linda University Electronic Theses, Dissertations & Projects

During the past few years many physicians, nurses, psychologists, teachers, and physical educators have begun to place more emphasis upon the developmental problems of children. As an outgrowth of this, more attention has been given the child showing mild to moderate motor problems. As a result of these more subtle difficulties going unrecognized and untreated, children may suffer from learning disorders, lack of acceptance by teachers and peers, maladaptive behavior and feelings of low self-esteem (Cratty, 1970; Kiphard, -1970; and Ferinden, 1972).

The purpose of this study was to ascertain whether planned physical activities would aid in remediation and/or modification …


The Effects Of Topically Applied Citric Acid On Periodontally Diseased Root Surfaces, John S. Garrett Jun 1976

The Effects Of Topically Applied Citric Acid On Periodontally Diseased Root Surfaces, John S. Garrett

Loma Linda University Electronic Theses, Dissertations & Projects

The goal of reconstructive periodontal therapy is new connective tissue attachment to periodontally diseased root surfaces. Recently Register (1973) and Register and Burdick (1975) have reported accelerated reattachment and cementogenesis when citric acid was applied to surgically created root surface defects. There are apparently no reports in the literature regarding the effects of citric acid on periodontally diseased root surfaces. This study was designed to determine the effects of topically applied citric acid on periodontally diseased root surfaces using the scanning (SEM) and transmission (TEM) electron microscopes.

Twenty three human teeth, nineteen extracted because of periodontal disease and four bicuspids …


The Treatment Timing Of Dolicofacial, Retrognathic Facial Patterns, George B. Clarke Jr. Jun 1976

The Treatment Timing Of Dolicofacial, Retrognathic Facial Patterns, George B. Clarke Jr.

Loma Linda University Electronic Theses, Dissertations & Projects

The general consensus among orthodontists today is that the dolicofacial, retrognathic patient can present one of the most challenging problems for conventional orthodontic therapy. It is often stated that many of these patients will have more mandibular opening rotation during orthodontic treatment than the mesofacial or brachyfacial patient. This opening rotation is compounded when the use of cervical traction and Class 11 mechanics are incorporated into the treatment plan. Because of the problems involved with the treatment of these types of patients, it has been suggested in the literature that there may be an ideal age to start orthodontic therapy …


The Functional Stress Analysis Of Post Reinforcement, Robert V. Bravin Jun 1976

The Functional Stress Analysis Of Post Reinforcement, Robert V. Bravin

Loma Linda University Electronic Theses, Dissertations & Projects

Research was undertaken in order to functionally test the reinforcement capabilities of several commonly used, standard manufactured posts. One hundred and ten maxillary lateral incisors were mounted in plastic, reinforced with the posts at different levels, and then restored with standardized crowns. These teeth along with control groups, were then placed in a custom, mounting jig which properly positioned them for the stress testing. The forces required for fracturing these teeth were recorded and subsequently analyzed.

The statistical analysis of the experimental results demonstrated that posts do not reinforce teeth as supposed; they may, in fact, weaken them. Analysis also …


Immuno-Histochemical Method For Demonstration Of Lactic Dehydrogenase "M" Subunits In Rat Skeletal Muscle, Kidney And Peripheral Nerve, Luis M. Bustos-Arango Jun 1976

Immuno-Histochemical Method For Demonstration Of Lactic Dehydrogenase "M" Subunits In Rat Skeletal Muscle, Kidney And Peripheral Nerve, Luis M. Bustos-Arango

Loma Linda University Electronic Theses, Dissertations & Projects

Immunolocalization of lactic dehydrogenase (LDH) rrM'‘' sub units has been achieved using paraformaldehyde vapor phase fixation of freeze-dried sections. An antiserum to monkey LDH-M^ was found to cross react with rat LDH-M subunits. The fibers of the gastrocnemius and soleus muscles which are stained using the immuno-peroxidase procedure do not stain in the presence of 4 M urea in the conventional method. In kidney, the collecting tubules are the structures which stain most intensely with the immuno-peroxidase procedure and in peripheral nerve both the Schwann cells and axons stain. The nuclei of muscle fibers. kidney tubular cells and Schwann cells …


Evaluation Of A Precision Filing Test For Predicting Dental Technic Performance, Douglass Roberts Jun 1976

Evaluation Of A Precision Filing Test For Predicting Dental Technic Performance, Douglass Roberts

Loma Linda University Electronic Theses, Dissertations & Projects

A precision filing test involving the reduction of a steel cylinder to a perfect cube with the use of a hand file and bench vise was devised as a diagnostic tool for the early detection of freshman students having technic difficulties. The test was administered to 188 freshman dental students in three classes at Loma Linda University, School of Dentistry. Subjective and objective scores were then statistically compared with subsequent technic and clinic grades of the students. The simple linear correlations between the predictor test variable and criterion grades were statistically significant for one class and for the combined classes …


The Prediction Of Circumferential Tooth Measurements As An Aid In Orthodontic Banding, Roland D. W. Neufeld Jun 1976

The Prediction Of Circumferential Tooth Measurements As An Aid In Orthodontic Banding, Roland D. W. Neufeld

Loma Linda University Electronic Theses, Dissertations & Projects

A correlation was established among the circumferential measurements of the teeth in a given individual. The maxillary central incisor was selected as the predictor tooth to predict the remaining teeth in the set. The circumferences of the teeth were predicted within + two band sizes 69% of the time. Agreement in prediction percentages was found using measurements taken intraorally.


Gingival Condition In Areas Of Minimal And Appreciable Widths Of Keratinized Gingiva, Myles C. Miyasato Jun 1976

Gingival Condition In Areas Of Minimal And Appreciable Widths Of Keratinized Gingiva, Myles C. Miyasato

Loma Linda University Electronic Theses, Dissertations & Projects

This investigation evaluated the gingival condition of areas with minimal (less than or equal to 1.0 millimeter) and appreciable (greater than or equal to 2.0 millimeters) widths of keratinized gingiva.

Sixteen dental, dental hygiene, and dental assisting students and dental faculty who had contralateral or unilateral areas of minimal and appreciable widths of keratinized gingiva on the mid-buccal surface of mandibular bicuspids were examined. Gingival exudate, plaque, gingival inflammation based on color change and/or swelling and bleeding on probing were evaluated. The results showed that all areas examined were plaque free. Three of 32 areas showed clinical gingival inflammation and …


The Effect Of Pre-Admission Crisis Nursing Intervention On The Anxiety Level Of Elderly Persons On Admission To A Nursing Home, Doreen C. K. Lee Jun 1976

The Effect Of Pre-Admission Crisis Nursing Intervention On The Anxiety Level Of Elderly Persons On Admission To A Nursing Home, Doreen C. K. Lee

Loma Linda University Electronic Theses, Dissertations & Projects

The experimental study attempted to determine whether pre-admission crisis nursing intervention had any effect on the level of anxiety of elderly people when they were transferred from an acute hospital to a nursing home.

The literature review related to trends in numbers of nursing homes and in the increase in longevity. Several articles indicated that the aged, as a group, lacked power to alter their situations. The need for patients to express their feelings and participate in their own decisions was stressed in various studies. Other theories discussed theoretical aspects and goals of crisis intervention. Several articles suggested that crisis …


A Comparative Study Of The Planned Use Of Touch To Enhance The Self Esteem Of The Pregnant Adolescent, Una Marie Reeves Jun 1976

A Comparative Study Of The Planned Use Of Touch To Enhance The Self Esteem Of The Pregnant Adolescent, Una Marie Reeves

Loma Linda University Electronic Theses, Dissertations & Projects

Two groups of pregnant adolescents were compared in a study of the hypothesis that the use of planned touch would enhance the self esteem of the pregnant adolescent. The girls studied were enrolled in a school for the pregnant minor, established by the San Bernardino County Schools system, in a metropolitan area of San Bernardino, California.

The control group was composed of seven and the experimental group of twelve pregnant adolescents, ranging in age from fifteen through seventeen. The Q Sort technique was used as the tool with which to measure the self esteem of both groups. Two preliminary sorts …


Hallucinogens: A Cause Of Convulsive Ergot Psychoses, Sylvia Dahl Winters Jun 1976

Hallucinogens: A Cause Of Convulsive Ergot Psychoses, Sylvia Dahl Winters

Loma Linda University Electronic Theses, Dissertations & Projects

Ergotism with vasoconstriction and gangrene has been reported through the centuries. Less well publicized are the cases of psychoses associated with convulsive ergotism. Lysergic acid amide a powerful hallucinogen having one.-tenth the hallucinogenic activity of LSD-25 is produced by natural sources. This article attempts to show that convulsive ergot psychoses are mixed psychoses caused by lysergic acid amide or similar hallucinogens combined with nervous system lesions secondary to vasoconstrictive effects of ergotoxine.


Systematic Nursing Management Of University Students With Infectious Mononucleosis, Lillian N. Yelton Jun 1976

Systematic Nursing Management Of University Students With Infectious Mononucleosis, Lillian N. Yelton

Loma Linda University Electronic Theses, Dissertations & Projects

Infectious Mononucleosis has been one of the most misdiagnosed entities in medicine. Its ability to mimic other diseases and the abundance of misconceptions about it have long confused both diagnosis and treatment. Since there is still no specific drug to combat this disease. patients with characteristic symptoms are treated symptomatically for the period of extended convalescence. This study was carried out to explore the possible effects of systematic nursing management on Infectious Mononucleosis patients, in order to evaluate those things that significantly influence the patient’s course of illness and recovery, in a university outpatient health service.

The hypothesis formulated was: …


The Effect Of Programmed Instruction About Pacemakers Given In The Hospital Setting On The Immediate And Delayed Retention Of Information On Patients With Permanent Cardiac Pacemakers, Ann Ekroth, Eileen Zorn Jun 1976

The Effect Of Programmed Instruction About Pacemakers Given In The Hospital Setting On The Immediate And Delayed Retention Of Information On Patients With Permanent Cardiac Pacemakers, Ann Ekroth, Eileen Zorn

Loma Linda University Electronic Theses, Dissertations & Projects

A convenience sample of nineteen patients composing group A, hospitalized for initial placement of permanent cardiac pacemakers, was studied. A programmed instructional test was prepared by the investiga- tors for this population. The question under study was, does programmed instruction for pacemaker patients affect immediate and delayed recall of information? Patients were pre-tested, presented with the programmed instruction package and given a post-test immediately upon completion of the package. They were retested later to evaluate retention level. An IQ test was administered at the same time as the pre-test. Statistical analysis using t-tests indicated significant differences between pre-test scores and …


Effects Of Cariogenic And Noncariogenic Diets On The Concentration Of The Parotid Hormone Releasing Factor In Rat Hypothalami, Melva Joan Brown Jun 1976

Effects Of Cariogenic And Noncariogenic Diets On The Concentration Of The Parotid Hormone Releasing Factor In Rat Hypothalami, Melva Joan Brown

Loma Linda University Electronic Theses, Dissertations & Projects

Hypothalamic and cortical extracts from various cariogenically grouped rats which had been maintained on either a Purina diet or a high sucrose diet (HSD) for three months were infused intravenously into 28 days old rats to determine if there was a titer of parotid hormone releasing factor (PRF) capable of facilitating fluid movement (FM) in the teeth. The hypothalamic and cortical extracts obtained from Purina-fed rats with 0-caries and the hypothalamic extracts from BSD-fed rats conclusively demonstrated FM stimulatory ability. Other Purina-fed groups were essentially biologically ineffective, however, extracts from HSD-fed caries groups including scores 11-40 demonstrated extremely potent FM …


Soft Tissue Profile Prediction: An Evaluation Of Methods, Roger H. Zierenberg Jr. Jun 1976

Soft Tissue Profile Prediction: An Evaluation Of Methods, Roger H. Zierenberg Jr.

Loma Linda University Electronic Theses, Dissertations & Projects

Forty cases demonstrating at least 3 mm of lingual movement of the upper incisors were analyzed to determine the soft-tissue prediction accuracy of the Holdaway and the Ricketts methods. Initial analysis was performed by comparing predictions based on pre-treatment cephalometric tracings to post-treatment tracings. Lack of congruency was considered error and statistical analysis followed. The Ricketts method was shown to be superior for upper lip prediction on the combined 40 cases. Neither method proved superior in predicting the lower lip.

Further analysis involved segregating the cases according to individual functional lip abnormalities and again comparing the two methods for accuracy. …