Medicine and Health Sciences Commons^™

Where Have All The Plant Foods Gone? The Search For Refined Dietary Reconstruction From Chinchorro Mummies, Karl J. Reinhard, Sara Le-Roy-Toren, Bernardo Arriaza

Karl Reinhard Publications

The Chinchorro cemeteries of northern Chile are the first graveyards of the Andes (Arriaza 1995, Schiappacasse & Niemeyer 1984). The excavation and analysis of Chinchorro mummies reveals the 'true character of the people'. The burials themselves are optimal for preservation of corpses, burial furniture, and aspects of ceremonies associated with the dead. The analysis of corporeal remains gradually clarifies the details of daily activities and status. Therefore, we feel that a holistic approach to mummy studies provides enormously fruitful paths to understanding the character of the ancient Chinchorro society.

Paleoepidemiology Of Intestinal Parasites And Lice In Pre-Columbian South America, Adauto Araujo, Karl Reinhard, Daniela Leles, Luciana Sianto, Alena M. Iñiguez, Martin Fugassa, Bernardo Arriaza, Nancy Orellana, Luis Fernando Ferreira

Karl Reinhard Publications

Some human parasites originated in prehominid ancestors in Africa. Nematode species, such as Enterobius vermicularis (pinworm), hookworms and Trichuris trichiura are shared by humans and other close phylogenetic primates (Pan and Gorilla), showing that they infected a common ancestor to this group. When humans migrated from Africa to other continents they carried these parasites wherever climate conditions allowed parasite transmission from host to host. Other parasites, however, were acquired throughout human biological and social evolutive history when new territories were occupied. Paleoparasitology data is a valuable source to recover emergence and disappearance of parasite infections through analysis of …

Orbitofrontal Cortex Provides Cross-Modal Valuation Of Self-Generated Stimuli, William A. Cunningham, Ingrid J. Haas, Ashley S. Waggoner

Department of Political Science: Faculty Publications

Prior research has shown that the orbitofrontal cortex (OFC) plays an important role in the representation of the evaluation of stimuli, regardless of stimulus modality. Based on these findings, researchers have proposed that the OFC serves a common currency function, allowing for the direct comparison of different types of perceptual stimuli (e.g. food, drink, money). The present study was designed to extend this research and investigate whether these same regions of OFC that have been identified in previous research are involved in evaluating imagined stimuli. Specifically, we asked participants to draw on prior attitudinal knowledge to generate internal representations of …

Waiting For Grapes: Expectancy And Delayed Gratification In Bonobos, Jeffrey R. Stevens, Alexandra G. Rosati, Sarah R. Heilbronner, Nelly Mühlhoff

Department of Psychology: Faculty Publications

Responses to delayed rewards vary widely across individuals and have important implications for personality and temperament. Animals may avoid delayed rewards because the future is uncertain. Therefore, expectations about receiving a future reward should influence the response to delayed payoffs. Here, we offered bonobos (Pan paniscus) a delayed gratification task in which food accumulated over time. Once subjects chose to consume the reward, food stopped accumulating. We tested their willingness to wait with a reliable and an unreliable experimenter to vary the subjects’ expectations that they would receive the food. Subjects waited less often with the unreliable experimenter …

To Google Or Not To Google: Graduate Students’ Use Of The Internet To Access Personal Information About Clients, David K. Dilillo, Emily B. Gale

Department of Psychology: Faculty Publications

The emergence of Internet search and social media sites now permits therapists to obtain a plethora of personal information about their clients online. These behaviors raise a number of ethical issues related to client privacy, self-determination, and informed consent. The purpose of this study is to examine student therapists’ opinions and behaviors in regard to the use these websites to search for information about their clients. A national sample of 854 psychology doctoral students was surveyed in regard to their online activities, attitudes, and frequency of searching for client information online. Results showed that Internet usage is pervasive in this …

Multiple “Hits” During Postnatal And Early Adulthood Periods Disrupt The Normal Development Of Sensorimotor Gating Ability In Rats, Jing Chen, Zucheng Wang, Ming Li

Department of Psychology: Faculty Publications

In the present study, we evaluated a multiple-hit animal model of schizophrenia in an attempt to capture the complex interactions among various adverse developmental factors in schizophrenia. Sprague–Dawley rats were assigned to receive either repeated daily 3-h maternal separation for eight days (first “hit”) on postnatal days (PND) 3 to 10, and/or avoidance conditioning for six days (second “hit”) on PND 49–56, and/or repeated phencyclidine treatment (third “hit”, 3.0 mg/kg, sc) immediately after each daily avoidance conditioning. Prepulse inhibition (PPI) of acoustic startle reflex was assessed at late adolescence (PND 41–43) and early adulthood (PND 62–63). The change in %PPI …

Cognitive-Behavioral Therapy For Immigrants Presenting With Social Anxiety Disorder: Two Case Studies, Brandon J. Weiss, J. Suzanne Singh, Debra Anne Hope

Department of Psychology: Faculty Publications

Cognitive-behavioral therapy (CBT) for the treatment of social anxiety disorder (SAD) has demonstrated efficacy in numerous randomized trials. However, few studies specifically examine the applicability of such treatment for ethnic minority clients. Thus, the purpose of this article is to present two case studies examining the utility of individualized CBT for SAD with two clients who immigrated to the United States, one from Central America and one from China, for whom English was not the primary language. Both clients demonstrated improvement on a semistructured interview and self-report measures. Necessary adaptations were modest, suggesting that therapy could be conducted in a …

Treatment Effects For Common Outcomes Of Child Sexual Abuse: A Current Meta-Analysis, Emily Trask, Kate Walsh, David K. Dilillo

Department of Psychology: Faculty Publications

The present meta-analysis examined the effects of psychosocial treatments at reducing deleterious outcomes of sexual abuse. The meta-analysis included a total of 35 published and unpublished studies written in English, focusing on youth under the age of 18, and evaluating the effectiveness of treatments for the most common negative outcomes of sexual abuse: PTSD symptoms, externalizing problems, and internalizing problems. Results revealed medium effect sizes for PTSD symptoms, externalizing problems, and internalizing problems following treatment for sexual abuse. This study also examined the potential moderating effects of treatment (e.g., modality, duration, and inclusion of caregiver) and participant (e.g., age, gender, …

Regulated Commercial Harvest To Manage Overabundant White-Tailed Deer: An Idea To Consider?, Kurt C. Vercauteren, Charles W. Anderson, Timothy R. Van Deelen, David Drake, W. David Walter, Stephen Vantassel, Scott E. Hygnstrom

United States Department of Agriculture Wildlife Services: Staff Publications

Declines in hunter recruitment coupled with dramatic growth in numbers of white-tailed deer (Odocoileus virginianus) have challenged our ability to manage deer populations through regulated hunting. We review the efficacy of current regulated hunting methods and explain how they are unable to reduce deer numbers sufficiently in some environments. Regulated commercial harvest would provide an additional tool to help state wildlife agencies manage overabundant populations of white-tailed deer. We outline potential means to govern regulated commercial deer harvest and explain how it is compatible with the North American Model of Wildlife Conservation. We identified several benefits, including reduced …

Correlation Of Omega-3 Fatty Acids Intakes With Acculturation And Socioeconomic Status In Midwestern Latinas, Karina R. Lora, Nancy M. Lewis, Kent M. Eskridge, Kaye Stanek-Krogstrand, Daryl A. Travnicek

Department of Nutrition and Health Sciences: Faculty Publications

Background: Low socioeconomic status (SES) and acculturation of Latino immigrants in the U.S. are linked to a decrease in diet quality. Methods: Interviews were conducted with 162 first-generation Latinas to examine the association of SES and acculturation with intake of omega-3 (n − 3) fatty acids. Each participant provided dietary intake by use of a validated n − 3 food frequency questionnaire administered twice, 4 weeks apart, three 24-h recalls, sociodemographic information and completed the 5-item Short Acculturation Scale. Results: Mean intakes of Total n − 3, α-linolenic acid (ALA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) (g/d) were …

Population Health Metrics Research Consortium Gold Standard Verbal Autopsy Validation Study: Design, Implementation, And Development Of Analysis Datasets, C.J.L. Murray, A.D. Lopez, R. Black, R. Ahuja, S.M. Ali, A. Baqui, L. Dandona, E. Dantzer, Vinita Das, U. Dhingra, A. Dutta, W. Fawzi, A.D. Flaxman, S. Gomez, B. Hernandez, R. Joshi, H. Kalter, A. Kumar, V. Kumar, R. Lozano, M. Lucero, S. Mehta, B. Neal, S.L. Ohno, R. Prasad, D. Praveen, Zul Premji, D. Ramirez-Villalobos, H. Remolador, I. Riley, M. Romero, M. Said, D. Sanvictores

Pathology, East Africa

Background: Verbal autopsy methods are critically important for evaluating the leading causes of death in populations without adequate vital registration systems. With a myriad of analytical and data collection approaches, it is essential to create a high quality validation dataset from different populations to evaluate comparative method performance and make recommendations for future verbal autopsy implementation. This study was undertaken to compile a set of strictly defined gold standard deaths for which verbal autopsies were collected to validate the accuracy of different methods of verbal autopsy cause of death assignment.

Methods: Data collection was implemented in six sites in four …

Cardiac Dysfunction After Cancer Treatment, Michael S Ewer, Sandra M Swain, Daniela Cardinale, Anecita Fadol, Thomas M Suter

The Texas Heart Institute Journal

Onco-cardiology is an evolving discipline that requires the consideration of cardiotoxicity in preclinical, clinical,and therapeutic aspects of protocol development,treatment, and surveillance of patients who have undergone interventions using cardiotoxic agents. Only then can we foster new ways to maximize survival while keeping cardiac damage within acceptable limits. It is to this end that our working together has brought us to our present understanding. In the future, we may expect onco-cardiology to play an even greater role in the care of cancer patients.

Understanding Psychosocial Rehabilitation Workers' Perceptions Of Difficult Psychiatric Situations, James B. Arnold

Walden Dissertations and Doctoral Studies

Psychosocial rehabilitation (PSR) is a community-based service that addresses the challenges faced by people diagnosed as having psychiatric disabilities. While working with co workers and clients, PSR workers may harbor perceptions that could lower the effectiveness of their work and hinder recovery by their clients. Although cognitive-behavioral theory has suggested an association, research has not yet connected PSR worker attitudes about psychiatric situations to their feelings and behavior. In this nonexperimental factorial design, 196 PSR workers were surveyed about the frustrations presented by stressful interpersonal job situations using the Psychiatric Situations Scale to identify whether occupation (case workers, residential workers, …

Perspectives Of Close Relatives In Pediatric Palliative Care: A Grounded Theory Approach, Janelle Marie Feyh

Walden Dissertations and Doctoral Studies

Pediatric palliative care has recently become a priority in the healthcare field and is implemented at the time of diagnosis rather than days or weeks before the child's death. Social constructivism theory in which humans generate meaning from their experiences was utilized as a general framework to determine the impact of pediatric palliative care on close relatives. The purpose of this grounded theory study was to generate a substantive theory that explains how close relatives such as grandparents, aunts, and uncles of a child with cancer experience palliative care. The participants of the study included close relatives of children in …

The Effects Of An Integrated Health And Physical Education Program On Student Achievement, Myralynn B. Catchings

Walden Dissertations and Doctoral Studies

In recent years, several schools have addressed the No Child Left Behind (NCLB) Act of 2001 by focusing on promoting skill acquisition in reading and math, often overlooking physical education (PE) as a significant part of a child's education. The purpose of this causal-comparative study was to evaluate the effectiveness of an integrated health and physical education (HPE) program on student achievement. This study was grounded in action-based learning theories. The research question examined differences in posttest scores, adjusted for pretest differences, from 204 freshman students enrolled in a Biology-1 class at an urban high school. Students in Group A …

Union And Nonunion Employment: An Investigative Study Of Factors In The Employment Setting That May Influence The Development Of Burnout, Rachel Elizabeth Costello

Walden Dissertations and Doctoral Studies

The primary goal of this two-phased, sequential mixed-methods study was to discover whether union affiliation is associated with a lower occurrence of burnout in factory workers by comparing union and nonunion workers. The objective was to determine levels of burnout in union and nonunion employees as well their perception of social support in the workplace. The theoretical synthesis consisted of conservation of resources theory and the theory of reasoned action. The Oldenburg Burnout Inventory (OLBI) and the Quality of Worklife Questionnaire were used to identify the characteristics of the workplace (job demands and job resources) and the level of burnout. …

Analysis Of Risk Factors Associated With Asymptomatic Colonization Of Methicillin Resistant Staphylococcus Aureus (Mrsa) Among Community College Students, Marilynn Kish-Molina

Walden Dissertations and Doctoral Studies

The bacterium Staphylococcus aureus has been an important human ailment for centuries, and with the overuse of antibiotics, methicillin resistant Staphylococcus aureus (MRSA) has emerged as a deadly, costly pathogen worldwide. Healthy carriers can become sick or can spread MRSA without symptoms. The amount of asymptomatic colonization among healthy college students and risk factors for colonization by MRSA are not well understood. According to the epidemiologic triangle model, the host (students who take antibiotics or have a history of skin infections), the infectious agent (MRSA) and the environment (direct contact with people, animals, or objects that may harbor MRSA) all …

Association Between Fast Food Consumption And Obesity And High Blood Pressure Among Office Workers, Kifle Mihrete

Walden Dissertations and Doctoral Studies

Fast food consumption among office workers is a common phenomenon. Frequent consumption of fast food is linked to cardiovascular risk factors. The pervasiveness of these risk factors has debilitated the office workers' health and contributed to low performance and absenteeism. However, there remains a significant gap in the current literature regarding the health impacts of frequent fast food consumption behavior of office workers. Consuming large portions of fast food has been associated with obesity. The purpose of this correlation study was to investigate the relationship between fast food consumption and obesity and hypertension among office workers. The theoretical foundations for …

Factors Affecting The Job Satisfaction Of Registered Nurses Working In The United States, Ann Marie Huffenberger

Walden Dissertations and Doctoral Studies

As the health care sector in the United States undergoes transformation, job dissatisfaction has become a problem that is confounded by the challenge that nurse executives encounter in understanding the aspirations of an increasingly diverse workforce. A quantitative survey was conducted online using a representative sample of registered nurses (RNs) nationwide. Approximately 127,000 RNs from across the nation received an invitation, and 272 RNs participated. Factorial ANOVAs were performed to answer the research questions of whether aspects of job satisfaction differ across the demographic factors of a diverse RN workforce. No differences exist in personal satisfaction or satisfaction with workload …

Perceptions Of Recent Male Nursing Graduates Regarding Gender Bias And Gender-Based Educational Barriers, Nancy Spahr

Walden Dissertations and Doctoral Studies

Despite decades of important contributions by male nurses, nursing is still viewed as a feminine profession. Moreover, male nursing students continue to experience gender bias and gender-based educational barriers within schools of nursing. This has led to failure and drop-out rates much higher than those experienced by their female counterparts. The purposes of this quantitative survey study were to (a) explore the relationship between perceived gender bias, gender-based educational barriers within nursing education, and resiliency in recent male nursing graduates; and (b) to identify those gender-based barriers that were considered to be most prevalent and most important. A view of …

Socioeconomic Factors Affecting Infant Sleep-Related Deaths, Catherine M. Hogan

Walden Dissertations and Doctoral Studies

Racial disparity is present in deaths attributed to sudden infant death syndrome (SIDS) and unintentional suffocation. The Back to Sleep Campaign that began in 1994 caused an overall decrease in SIDS rates, but the racial disparity has continued to increase. Researchers have analyzed and described various socio-demographic characteristics of SIDS and infant deaths by unintentional suffocation in urban areas yet have not simultaneously controlled for multiple risk factors that may contribute to racial disparity such as race, poverty, maternal education, and number of children born to each mother (parity). The purpose of this study was to determine if there is …

The Impact Of Company Grade Officer Self-Sacrificial Behavior On Subordinate Assessments Of Leader Charisma, Danjel Bout

Walden Dissertations and Doctoral Studies

Newly commissioned officers in the U.S. Army are taught to lead their soldiers from the front and to voluntarily make personal sacrifices in the service of the nation. Although this facet of military culture is seen as critical to the integrity of the force, there are few research studies describing the impact of leader self-sacrifice in the U.S. Army. Research evolving from the transformational leadership literature indicates that civilian leaders who engage in self-sacrificial behavior are viewed as more charismatic than their counterparts and that this perception is particularly pronounced in crisis situations. The current study extended this research to …

Patient Adherence To Oral Oncolytics, Holly Sansoucie

Walden Dissertations and Doctoral Studies

Oral oncolytics continue to come to market at an unprecedented pace. Traditionally, chemotherapy was delivered in the controlled environment of the infusion suite; however, with the increasing use of oral oncolytics, the burden of administration and monitoring has shifted to the patients and/or their caregiver. This paradigm shift, from intravenous chemotherapy to oral chemotherapy, has created new challenges in cancer care. Despite the seriousness of their diagnosis, oncology patients are not always adherent to these requirements. Oncology nurses have always taken the lead in patient education, yet that lead has mostly been in the context of intravenous chemotherapy. There is …

The Impact Of Personalization-Based Tailored Instructional Communications On College Student Persistence, Nichole Gibbs

Walden Dissertations and Doctoral Studies

The low graduation rate of degree-seeking students at public community colleges is an important crisis facing communities across the United States. College satisfaction and withdrawal cognitions in students have been identified as key factors in college persistence by researchers. However, a review of the literature revealed no study in which a college-persistence intervention based on the personalization principle theory or using tailored messages has been conducted. The purpose of this study was to test the effectiveness of a college-persistence intervention, based on the personalization principle theory and Mashburn's theory, for students at a community college. This study used between-groups experimental …

Drills And Exercises As Interventions To Improve Public Health Emergency Response, Donna Beth Knutson

Walden Dissertations and Doctoral Studies

The 2001 destruction of the World Trade Center and the subsequent anthrax attacks highlighted the inability of an antiquated public health system in the United States to respond effectively to emergencies. Little documentation exists to define how public health agencies can improve performance. The overarching research question was the extent to which drills and exercises improve performance in public health emergencies. Adult learning theory and deliberate practice theory were explored in this context. The research data were from 50 state public health departments, which were required to report performance information to the U.S. Centers for Disease Control and Prevention. The …

Exploration Of The Project Management Practitioner's Emotional Intelligence Competencies, Linda A. Hooper

Walden Dissertations and Doctoral Studies

The success rate of information technology projects is on a downward trend, with reported losses in the billions of dollars. Recent studies indicate a 50--56% project success rate based on quality, budget, and on-time criteria. Building upon the conceptual framework of the emotional intelligence and knowledge management theories, the purpose of this phenomenological study was to explore how project management practitioners apply self- and cultural-awareness competencies to affect project outcomes. Using a purposeful sampling method, 24 experienced U.S.-based project management practitioners participated in a web-based questionnaire. Following Giorgi's data reduction process resulted in numeric data coding. Thematic analysis revealed themes …

A Test Of An Evolutionary Theory Of Adiposity Gain Induced By Long Sleep In Descendants Of European Hunter-Gatherers, Oleksiy Chadyuk

Walden Dissertations and Doctoral Studies

Researchers have identified inadequate sleep duration as one of the factors contributing to global obesity. The purpose of this study was to test a hypothesis deduced from a new sleep-duration-based evolutionary theory claiming that sleep extension in response to lengthening night duration in early fall evolved into a behavioral marker of an approaching winter; this adaptive trait was theorized to produce adiposity gain in White men in response to sleep extension. The hypothesis was that White Americans would show a greater increase in the age-adjusted fat mass index per unit of sleep duration compared to that of Black Americans. Data …

Prediction Of Air Traffic Controller Trainee Selection And Training Success Using Cognitive Ability And Biodata, Karen D. Fox

Walden Dissertations and Doctoral Studies

The Federal Aviation Administration (FAA) has experienced decreased return on investment caused by hiring too many air traffic controller specialists (ATCSs) who performed poorly in field training, thus failing to become certified professional controllers (CPCs). Based on Schmidt and Hunter's theory of job performance and biodata theory, this quantitative, archival study examined whether factors of cognitive ability and biodata could predict job performance status of 2 generations of ATCSs, poststrike (PS) and next generation (NG) controllers. For each generation of controllers, binary logistic regression analysis was conducted to determine if any of the independent variables---transmuted composite (TMC) score for PS …

Impact Of Nutrition Education On Student Learning, Lydia Singura

Walden Dissertations and Doctoral Studies

A goal of schools is to provide students with practical nutritional information that will foster healthy lifelong behaviors. Unfortunately, students at one school were found to have difficulty grasping basic nutritional information and practical health-related skills. There remains an important gap in current literature regarding strategies to improve students' understanding of nutrition education material. The purpose of this study was to investigate the benefits of a 4-week nutrition intervention unit in the Foods I classes consisting of 82 male and female students in Grades 9-12. Constructivist teaching methods were implemented to provide students with both information and valuable skills, which …

Learning Style Needs And Effectiveness Of Adult Health Literacy Education, Leah A. Grebner

Walden Dissertations and Doctoral Studies

Low health literacy impacts an individual's ability to comprehend communication from healthcare providers, reduces access to healthcare, and contributes to increased mortality. The purpose of this study was to evaluate the impact of learning style on adult health literacy education. The health belief model, protection motivation theory, the transtheoretical model, and social cognitive theory were used to analyze the data in this study, and to further develop effective health literacy education. The research questions addressed the effectiveness of educational intervention adjusted to their appropriate learning style in comparison to a standardized health literacy intervention and potential difference, according to type …