Digital Commons Network^™

Are Bone Turnover Markers And Vitamin D Levels Associated With Frequency Of Complete Denture Relines?, Shweta Puri

Loma Linda University Electronic Theses, Dissertations & Projects

PURPOSE: To compare groups of subjects with varying frequencies of complete denture relines in terms of their bone turnover markers; C-terminal Telopeptide (C-Tx), Osteocalcin (OCN) and Vitamin D (25 OH-Vit D) levels to determine the presence of and the degree of association between them.

METHODS: This study was designed as a cross-sectional study wherein a retrospective chart review of three hundred twenty four edentulous subjects with history of complete denture use for at least a year was performed to determine history and frequency of their complete denture relines. A total of 100 patients were enrolled. After consent was obtained, each …

Performance Of Number Of Factors Procedures In Small Sample Sizes, Marc Thomas Porritt

Loma Linda University Electronic Theses, Dissertations & Projects

Recent studies have indicated that under the proper circumstances factor anaylisis may be accurately performed in samples as small as N = 9. However, all of these studies have extracted a pre-known number of factors, leaving an examination of determining the proper number of factors to future studies. The current study uses examines the following methods for determining the proper number of factors: Monte Carlo data to examine the performance of common versions of the Kaiser Rule, minimum average partial, parallel analysis and salient loading criteria under the conditions created by all possible combinations of method, model strength, overdetermination and …

Assessment Of Geriatric Depression: Construction Of A New Screening Inventory, Earl C. Thorndyke Iii

Loma Linda University Electronic Theses, Dissertations & Projects

Geriatric depression is strongly associated with increased healthcare costs, poor treatment outcomes, and mortality. Existing measures of depression in this population do not adequately account for more recent literature describing the presentation of depressed older adults, and thus may result in the underdiagnosis of depression in this population. The current study consistent of the development of a new, updated measure and examined its psychometric properties and potential clinical utility for diagnosing depression in adults over the age of 65. Participants were be recruited from multiple sources, including a community population from residential retirement communities, as well as inpatients and outpatients …

Tooth Length Measurements On 3t Mr Images: A Retrospective Study, Kevin G. Murray

Loma Linda University Electronic Theses, Dissertations & Projects

Introduction: The purpose of this study was to determine if MRI can be used to accurately measure tooth lengths. Methods: MRI tooth length measurements were compared with “actual tooth lengths” as measured on CBCT scans. Twenty three subjects received two scans (one CBCT and one MRI). Tooth length was measured and compared between the resultant images. Intraclass correlations were used for statistical analysis. Results: Tooth length measurements made on MRI scans showed moderate to almost perfect agreement with tooth length measurements made on CBCT scans. Higher levels of agreement were present in the maxillary arch compared to the mandibular arch. …

Parent Stress And Social Skills Development In Children With Developmental Delays, Andrea Lewallen

Loma Linda University Electronic Theses, Dissertations & Projects

The following dissertation is a compilation of two studies examining the impact of Mindfulness Based Stress Reduction (MBSR) on parents of children with developmental delays (DD) and the subsequent effects on child social development. Study one sought to examine whether changes in child social skills occurred after parent stress was reduced through an 8-week MBSR training group, and whether these changes were associated with improvements in parent-child relational factors. Data from 24 families of children with DD (ages 2.5-5) were examined in this study. Paired samples t-tests examining pre-post differences revealed that mothers, secondary informants, and teachers acknowledged improvements in …

Cultural Beliefs And Professional Empathy Influence Continuity Of Healthcare, Jael A. Amador

Loma Linda University Electronic Theses, Dissertations & Projects

Negative healthcare encounters have implications for preventive medical services and continuity of healthcare. This study examined the influence of positive cultural beliefs about health professionals and perceived professional empathy on continuity of cancer screening care in the context of a negative healthcare encounter. A mixed-methods research approach was implemented to examine the relations among cultural beliefs, perceived professional empathy, interpersonal emotions, and continuity of care among 237 Latin American (Latino) and non-Latino White (Anglo) American women that reported a negative healthcare encounter. Multi-group structural equation modeling revealed that for Latino and Anglo women, positive cultural beliefs about health professionals in …

The Effect Of Scan Settings On The Identification Of Tooth Socket Lamina Dura Surface: A Cbct Study, Erick Carlucci

Loma Linda University Electronic Theses, Dissertations & Projects

Aim: Cone-beam computed tomography (CBCT) is becoming a common adjunct in orthodontic diagnosis and treatment, however several questions remain about the impact of surrounding anatomical structures and varying scan settings on the ability to delineate buccal bone and overall diagnostic quality of images produced. The aim of this study was to determine if adjacent structures with similar radiodensity and variable scan settings (field of view and voxel size) significantly impact the ability to accurately identify the tooth socket facial lamina dura, facial bone surface, facial bone margin, as well as the facial bone thickness measurement. Materials & Methods: CBCT scans …

Acceptability And Preferences For Empirically-Supported Psychological Treatments, Amanda Gorlick

Loma Linda University Electronic Theses, Dissertations & Projects

Over the past decade, mental health has been moving in the direction of empirically-supported treatments. Currently, there are many empirically-supported treatment modalities that have been shown to be efficacious for various psychological disorders, specifically mood and anxiety disorders. However, the face-to-face treatment literature reflects low levels of treatment access and participation. Approximately half of participants with clinically-significant levels of depression received some treatment, evidence-based or not (Kessler et al., 2007). Even for participants who are able to successfully access services, engagement with treatment is often low, and dropout rates are high. There is some evidence that participants’ preferences for treatment …

Dietary Intake And Bio-Activation Of Nitrite And Nitrate In Newborn Infants, Jesica Ann Jones

Loma Linda University Electronic Theses, Dissertations & Projects

Nitrate and nitrite are commonly thought of as inert end products of nitric oxide (NO) oxidation, possibly carcinogenic food additives, or well-water contaminants. However, recent studies have shown that nitrate and nitrite play an important role in cardiovascular and gastrointestinal homeostasis through conversion back into NO via a physiological system involving enterosalivary recirculation, bacterial nitrate reductases, and enzyme-catalyzed or acidic reduction of nitrite to NO. The diet is a key source of nitrate in adults; however, infants ingest significantly less nitrate due to low concentrations in breast milk. In the mouth, bacteria convert nitrate to nitrite, which has gastro-protective effects. …

Prostate Cancer Screening Intention Among Black Men: A Multivariate Analysis, Crystal Renee Clarke

Loma Linda University Electronic Theses, Dissertations & Projects

Prostate cancer is one of the leading causes of death among Black men, and widespread lack of screening contributes to the mortality burden. The purpose of this present study was to evaluate the effect of relationship intimacy with individual intent to screen using the digital rectal examination (DRE) among Black men. The human ecological theory of human development was a good fit for this present study, as individual health status and population health disparities are embedded in larger historical, geographic, socio-cultural, economic, and political contexts. The ecological framework allows researchers to attempt to identify the influences of all these factors. …

The Effects Of A Novel Therapeutic Intervention In Diabetic Peripheral Neuropathy Patients, Adel M. Alshahrani

Loma Linda University Electronic Theses, Dissertations & Projects

Diabetes mellitus (DM) is a common disorder affecting individuals in the United States and in the world. The prevalence of DM has increased noticeably over the last three decades with an estimated 380 million people currently diagnosed with this disease. DM is associated with numerous systemic complications that affect the retina, heart, brain, kidneys, and nerves. The most common complication of DM is diabetic peripheral neuropathy. Diabetic peripheral neuropathy causes reduced sensation, reflexes, proprioception, and strength in lower limbs that leads to balance problems. Various manual therapy techniques have not approached a pilot study for the efficacy of a manual …

Tooth Size Ratio In Orthodontic Patients With Varied Sagittal Skeletal Patterns; A Cbct Study, James Barra

Loma Linda University Electronic Theses, Dissertations & Projects

Objective: Maxillomandibular tooth size ratio (TSR) is an important aspect in achieving a satisfactory orthodontic outcome. The purpose of this study is to compare TSR among orthodontically treated patients with different skeletal anteroposterior (AP) patterns. Methods and Materials: The post-treatment (T2) cone beam computed tomograms (CBCTs) of patients treated orthodontically without extraction and finished with canine and molar class I occlusion were evaluated. The subjects were categorized into class I, class II and class III skeletal pattern by analyzing A point-Nasion-B point (ANB) at T2. Overbite (OB), overjet (OJ), TSR for canine to canine (TSR3-3) and molar to molar (TSR6-6), …

Nondysphoric Depressive Symptoms And Cognitive Abilities In Healthy Older Adults, Clint H. Norseth

Loma Linda University Electronic Theses, Dissertations & Projects

Research has shown that depression is associated with poorer cognitive performance and cognitive decline. Cognitive functions such as processing speed, language ability, memory, and executive functions have been found to be affected in older adults with depression. However, there is limited research focused on the effects of minimal or mild depressive symptoms in older adults who do not meet criteria for a depressive disorder. Older adults are more likely than any other population to endorse depressive symptoms in the absence of typical dysphoric symptoms that would qualify an individual for a depressive disorder. Understanding the effects of nondysphoric depressive symptoms …

Do Clergy In Hidalgo County, Texas Serve As A Bridge Or Barrier To Mental Health Services?, John C. Park

Loma Linda University Electronic Theses, Dissertations & Projects

Clergy play the role of frontline mental health (MH) workers for many Americans (Ellison et al., 2006; Wang et al., 2005; Winet, Majors, & Stewart, 1979). There is insufficient information in regards to what the clergy believe about MH and how they respond to MH related concerns. What we know indicates that clergy are not sufficiently equipped or trained to respond adequately to people suffering from issues of MH. Using face to face interview process, 301 clergy members of the faith based organizations (FBO) in Hidalgo County, Texas (HCT) were interviewed. Key findings suggest that the clergy engage in significant …

Recreational Diving And Hawksbill Sea Turtles (Eretmochelys Imbricata) In A Marine Protected Area, Christian Hayes

Loma Linda University Electronic Theses, Dissertations & Projects

Recreational diving is a form of ecotourism that is traditionally viewed as an ecologically sustainable activity prompting increased awareness for the marine environment. Recent studies, however, indicate that recreational diving may cause unintended behavioral changes in marine macrofauna. Few studies, however, have specifically investigated the effects of recreational diving on sea turtles. I conducted in-water observations and turtle sightings surveys from June 9 to August 21, 2014, in Roatán, Honduras, to determine if differences in dive site use and diver behavior alter the behavior of critically endangered hawksbill sea turtles (Eretmochelys imbricata) in a marine protected area (MPA). I found …

Clinical Essentials For Obesity, Ryan Garry Montanari

Loma Linda University Electronic Theses, Dissertations & Projects

In order for health psychologists to be prepared to address obesity, foundational information on obesity is required. Psychologists have the potential to assist with lifestyle and behavioral modifications, especially when weight problems are tied to mental health conditions. Furthermore, clinicians can focus on triggers for unhealthy choices, in addition to unhealthy beliefs about eating and weight. The purpose of this research project is to provide health psychologists with essential information on the scope, associated risks, and evidence-based interventions for obesity so that they will be better prepared to deliver effective treatments.

Palmitic Acid Activation Of Dendritic Cells: Implications For Type 2 Diabetes, Dequina Angelina Nicholas

Loma Linda University Electronic Theses, Dissertations & Projects

Infiltration of immune cells into visceral adipose tissue is observed in type 2 diabetes development. Monocytes are recruited to obese visceral adipose tissue in large numbers and retain the ability to differentiate into dendritic cells, important antigen presenting cells in the immune system. Differentiation of monocytes into dendritic cells likely accounts for the increased number of dendritic cells observed in the adipose tissue of type 2 diabetic patients. We have demonstrated this differentiation process is regulated in part by a major reduction of linker histone proteins. In adipose tissue, dendritic cells are exposed to high levels of saturated fatty acids. …

Prevalence And Rationale Of Orthodontic Extractions At Loma Linda University, Teresa T. Tran

Loma Linda University Electronic Theses, Dissertations & Projects

Aim: The purpose of this study was to determine the prevalence of orthodontic extraction cases and the rationale for the decision-making. Materials & Methods: The records of consecutive patients who had completed orthodontic treatment at Graduate Orthodontic Clinic, Loma Linda University School of Dentistry, between January 2010 and December 2014 were reviewed for prevalence of orthodontic extractions. Cone beam computed tomograms (CBCTs) of patients, that had extraction(s) prescribed as part of orthodontic treatment, were analyzed dentally and skeletally. Patients were then categorized according to the degree of crowding in each dental arch. A one-way ANOVA (Kruskal-Wallis) test and …

Indicators Of Ambiguous Loss In Families With Traumatic Brain Injured Members, Mynda Ohs

Loma Linda University Electronic Theses, Dissertations & Projects

People who have encountered medical traumas can experience significant changes in their lives. As a result, the family members become caregivers and experience increased stress and ambiguous losses (AL). These losses are often unacknowledged even by the family and cause significant distress. It is important that the family acknowledge these losses and allow themselves time to grieve and adapt to the changes in their lives. While it is widely known that caregivers experience this stress, and programs exist to help support these families, there is less known about the effectiveness of these programs. This study has been designed to explore …

Treatment Manual For Improving Self-Esteem, Body Image, And Interpersonal Effectiveness Of Female Juvenile Offenders, Victoria Liao

Loma Linda University Electronic Theses, Dissertations & Projects

Few interventions have been established for female juvenile offenders, despite the unique psychological problems reported in this population. This is an important issue requiring greater attention, as there has been an increase in the total amount of incarcerated female youth. Additionally, the trajectory leading to delinquent behaviors and incarceration among females is distinct from that of males. Given the need for interventions targeting female juvenile offenders, a treatment manual was developed to improve self-esteem, body image, and interpersonal effectiveness in this population using principles of dialectical behavioral therapy.

An Attribution-Emotion Approach To Political Conflict, Daniel Joel Northington

Loma Linda University Electronic Theses, Dissertations & Projects

The current political system in the United States is marked by extreme levels of partisan hostility and polarization, which has not only resulted in a dysfunctional congress, but also increasing conflict between partisan groups in the general electorate. While political scientists have offered various explanations for this phenomenon, social-psychological theories provide opportunities for empirical investigation of psychological explanatory factors. This study applied Betancourt’s attribution-emotion model of conflict and violence to the ultimate attribution error in order to develop a contemporary and comprehensive understanding of the psychological factors relevant to partisan-based intergroup relations. Five hundred sixty-four participants from various demographic backgrounds …

Communities In Action: Participatory Assessments As An Initial Stage In Critical Consciousness Raising And Community Capacity Building, Carizma Amila Chapman

Loma Linda University Electronic Theses, Dissertations & Projects

This paper presents the findings of two participatory community assessments conducted in Punta Raton and El Venado, two small coastal towns in Southern Honduras. The community assessments were designed and implemented to establish a baseline of community awareness and action, an important step in community development and environmental sustainability. The aim was to: build community partnerships, identify key stakeholders, facilitate dialogues about concerns, identify local and external resources required for progress, and construct actions plans targeting key communal concerns. The assessments were found to be successful in engaging community members and identifying local needs and resources. However, challenges in intervention …

The Dynamics Of Human And Rattlesnake Conflict In Southern California, Aaron Grant Corbit

Loma Linda University Electronic Theses, Dissertations & Projects

Human-rattlesnake conflict occurs when rattlesnakes are discovered in human-dominated areas and are deemed to pose an unacceptable risk to humans because of their venomous bite. In this dissertation, I investigated the nature of this conflict from the perspectives of both the behavioral and survival risks posed to rattlesnakes and the medical risks posed to humans. In the first of three studies, I investigated the effects of short- and long-distance translocation (SDT and LDT) of nuisance wildlife as a way of mitigating conflict between humans and naturally occurring Red Diamond Rattlesnakes (Crotalus ruber) near residential development in southern California. Snake activity …

Psychological Services For Pediatric Victims Of Non Accidental Trauma, Robyn Finckbone

Loma Linda University Electronic Theses, Dissertations & Projects

Child abuse is a significant problem within our society. In 2010, there were approximately 1,560 fatalities as a result of child abuse; 17.6% of those deaths were the direct result of physical abuse and 80% occurred in children under the age of 4. There is a dearth of research examining severe physical abuse among children and, as a result, the demographics of this population are unclear as are the psychological referrals and services provided to these children. The aims of the current study are to identify the demographic characteristics of child victims of non-accidental trauma (NAT, i.e. physical abuse) as …

Long-Term Hypoxia Alters Ovine Fetal Adrenal Enos And Cortisol Biosynthesis, Elizabeth Anne Newby

Loma Linda University Electronic Theses, Dissertations & Projects

Maintaining normal levels of cortisol in response to chronic stress, while retaining the ability to respond to acute stress, is important for ensuring normal fetal growth and development. Long-term hypoxia (LTH) causes adaptations in the fetal hypothalamopituitary- adrenal (HPA) axis that maintain basal cortisol levels but enhance production in response to a secondary stress. Nitric oxide (NO), produced by endothelial nitric oxide synthase (eNOS) in the adrenal cortex, plays a significant role in regulating cortisol production in the LTH fetus. The production of NO is regulated by eNOS activity which can be altered via phosphorylation through key signaling pathways. In …

Effect Of A Simulation Course On Medication Administration Safety Of Malaysian Nursing Student, Noraidah L. Guntalib

Loma Linda University Electronic Theses, Dissertations & Projects

Improving safety during medication administration has been a goal of today’s healthcare environment. The complexity of both medication use and the medication management process, especially in the in-patient setting, creates a significant risk for hospitalized clients. Medication administration errors have harmed millions of people and cost millions of dollars worldwide, including Malaysia. Patient safety is dependent on nurses (including student nurses), who must consistently demonstrate behaviour fundamental to the safe administration of medication. Therefore, nursing education must provide teaching and foster learning in students to prepare them to be a safe nurse. Literature has shown that deficiencies of knowledge and …

Cultural Beliefs And Self-Efficacy In Diet Adherence Among Type 2 Diabetics, Sonika Kravann Ung

Loma Linda University Electronic Theses, Dissertations & Projects

Type 2 Diabetes (T2D) is a global epidemic that disproportionately affects socioeconomic and ethnic minority populations (International Diabetes Federation, 2013). Mapuches, the largest Native American population in Chile, shifted from the lowest incidence of T2D to equal rates in comparison to mainstream Chileans within a decade (King & Rewers, 1991; Perez-Bravo et al., 2001). This may be due to economic growth and rapid nutritional shifts (Yu & Zinman, 2007). Previous research has identified the importance of cultural beliefs in explaining health behavior (Betancourt, Flynn, & Ormseth, 2011). This study, guided by Betancourt’s Integrative Model for Culture, Psychological Factors and Behavior …

Hospice Care In Malaysia: Knowledge, Attitude And Time Of Discussion, Shanthi Ellen Solomon

Loma Linda University Electronic Theses, Dissertations & Projects

Despite available and adequate hospice care resources, fewer terminally ill patients in Malaysia use hospice care services than one might reasonably expect. It is reported that only around 10% of patients who die of terminal illness in Malaysia, die in hospice care (Devaraj, 2003). The projected number of individuals that should receive palliative care in Malaysia is 17 to 27% (Connor & Sepulveda Bermedo, 2014). In order to study why hospice care is not accessed as expected, nurses and doctors in Penang and Sabah completed a survey measuring knowledge of current hospice practices, attitude toward caring for the dying, personal …

Youth Adjustment To The Impact Of The Sierra Leone Civil War, Daniel S. Sandy

Loma Linda University Electronic Theses, Dissertations & Projects

Coping in post war settings following exposure to traumatic events often posed numerous challenges for youth health and well-being. This study explored familial and contextual factors associated with adjustment to the impact of the Sierra Leone civil war in a cross-sectional sample of 359 civilians and former recruited youth. Data were collected through a convenience sampling strategy with the use of survey questions administered face-to -face by trained research assistants in Sierra Leone from April through May of 2014. MANOVA test revealed similar adjustment status for civilians and former recruited youth twelve years after the end of the civil war. …

Human Olfactory Perception: A Literature Review, Catherine Jameson Lee Kelly

Loma Linda University Electronic Theses, Dissertations & Projects

There has been wide debate about the degree to which humans are impacted by olfaction. Despite former assumptions that we are dominantly visual/auditory creatures, recent studies suggest that humans are more highly macrosmatic than originally thought. Humans have demonstrated behavioral, physiological, cognitive and affective responses to olfactory stimuli even when the stimuli were perceived unconsciously. The mechanism by which humans perceive these signals is unclear; there is much debate as to whether the vomeronasal organ is functional in humans. Regardless of the mechanism of perception, it is clear olfaction is psychologically impactful for humans. The following literature review summarizes research …