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Articles 4891 - 4920 of 12773
Full-Text Articles in Entire DC Network
Custom 3d Printer And Resin For 18 Μm × 20 Μm Mi- Crofluidic Flow Channels, Hua Gong, Bryce P. Bickham, Adam T. Woolley, Gregory P. Nordin
Custom 3d Printer And Resin For 18 Μm × 20 Μm Mi- Crofluidic Flow Channels, Hua Gong, Bryce P. Bickham, Adam T. Woolley, Gregory P. Nordin
Faculty Publications
While there is great interest in 3D printing for microfluidic device fabrication, to-date the achieved feature sizes have not been in the truly microfluidic regime (μm). In this paper we demonstrate that a custom Digital Light Processor stereolithographic (DLP-SLA) 3D printer and a specifically-designed, low cost, custom resin can readily achieve flow channel cross sections as small as 18 μm × 20 μm. Our 3D printer has a projected image plane resolution of 7.6 μm and uses a 385 nm LED, which dramatically increases the available selection of UV absorbers for resin formulation compared to 3D printers with 405 nm …
Range Extension Of The Giant Water Bug Belostoma Flumineum Say 1832 (Hemiptera: Belostomatidae) To Saskatchewan, Canada, Iain D. Phillips, Stephen Srayko, Kate S. Prestie, Aaron J. Bell, Dale Parker
Range Extension Of The Giant Water Bug Belostoma Flumineum Say 1832 (Hemiptera: Belostomatidae) To Saskatchewan, Canada, Iain D. Phillips, Stephen Srayko, Kate S. Prestie, Aaron J. Bell, Dale Parker
Western North American Naturalist
We collected a single specimen of the giant water bug Belostoma flumineum Say 1832 (Hemiptera: Belostomatidae) during routine macroinvertebrate biomonitoring in the Souris River, Saskatchewan. This is the first record of B. flumineum in the province of Saskatchewan and represents a more northern record than the previously documented locations in Montana, North Dakota, and southeastern Manitoba.
Colectamos un único ejemplar de la chinche gigante de agua Belostoma flumineum Say 1832 (Hemiptera: Belostomatidae) durante un biomonitoreo de rutina de macroinvertebrados en el río Souris, Saskatchewan. Este es el primer registro de B. flumineum en la provincia de Saskatchewan y representa un …
Should Nurse Practitioners Be Required To Record Immunizations In Immunization Information Systems?, Donald Gardenier, Lacey Eden, Karlen E. (Beth) Luthy
Should Nurse Practitioners Be Required To Record Immunizations In Immunization Information Systems?, Donald Gardenier, Lacey Eden, Karlen E. (Beth) Luthy
Faculty Publications
The United States Centers for Disease Control and Prevention (CDC)’s Vaccines for Children (VFC) Program, which provides the majority of childhood immunizations, has been in existence for over 20 years. The CDC also created the Immunization Information Systems (IIS) program in which states were allocated funding to create statewide immunization databases. The goal was to maintain a reliable immunization tracking system to keep children on schedule and avoid unnecessary immunizations. In most states, however, only health care providers who are enrolled in the VFC Program are required to enter data into the IIS. Should all providers be required to enter …
The Role Of Lkb1 In Obesity-Induced Skeletal Muscle Inflammation And Insulin Resistance, David Thomson
The Role Of Lkb1 In Obesity-Induced Skeletal Muscle Inflammation And Insulin Resistance, David Thomson
Journal of Undergraduate Research
The incidence of obesity and the health consequences that accompany it have increased rapidly over the past decade. Understanding the molecular pathways involved in its development will be crucial in developing novel treatment strategies for obesity and associated disorders. Low-grade inflammation likely plays a major role in many of the complications of obesity. We proposed to study the role of liver kinase B1 (LKB1) in the development of inflammation and insulin resistance in obese mice and saturated fatty acid-induced insulin-resistant cells.
The Role Of Nr4a1 In Maternal Obesity Induced Beta Cell Expansion, Jeffery S. Tessem
The Role Of Nr4a1 In Maternal Obesity Induced Beta Cell Expansion, Jeffery S. Tessem
Journal of Undergraduate Research
The academic objectives of this Mentoring Environment Grant (MEG) were to 1) train undergraduate students in the scientific process to prepare them in careers as physicians and scientists, and 2) to examine the relationship between in utero Nr4a1 beta cell specific deletion during maternal overnutrition and obesity on beta cell mass at birth and diabetic onset. We were successful in accomplishing these objectives, as evidenced by the training of four undergraduate students, presentation of research and local and national meetings, and initial preparation of a manuscript reporting our findings.
Nonjudgmentalism Strikes Back: Moral Relativism And Conviction, Daniel H. Frost
Nonjudgmentalism Strikes Back: Moral Relativism And Conviction, Daniel H. Frost
Religious Educator: Perspectives on the Restored Gospel
In his 2011 book Lost in Transition, sociologist Christian Smith investigates the way “emerging adults” make sense of moral choices. Smith’s findings are not encouraging: many emerging adults are unable to engage questions about moral problems or dilemmas in a meaningful way and sometimes seem unaware that they ever confront such dilemmas. Six out of ten emerging adults in the study believed that “morality is a personal choice, entirely a matter of individual decision.” When asked to identify a moral dilemma they had faced in recent years, 66 percent of emerging adults in this study either could not think of …
Youth Disclosure: Examining Measurement Invariance Across Time And Reporter, Robb E. Clawson
Youth Disclosure: Examining Measurement Invariance Across Time And Reporter, Robb E. Clawson
Theses and Dissertations
Measurement invariance across time and reporter is rarely reported in the literature for measures of youth disclosure, even though it is often necessary to establish at least strong invariance before proceeding to further analyses such as comparing means across time or reporter. Measurement invariance was examined across time (ages 11, 14, and 17) and across reporter (youth report of disclosure to mother, youth report of disclosure to father, mother report of youth disclosure, father report of youth disclosure) with a sample of 348 youth and their parents. Youth report of disclosure to mothers demonstrated strong invariance across ages 11-14 and …
Multiculturalism And Social Work: A Content Analysis Of The Past 25 Years Of Research, Lauren Christine Smithee
Multiculturalism And Social Work: A Content Analysis Of The Past 25 Years Of Research, Lauren Christine Smithee
Theses and Dissertations
The purpose of this content analysis was to analyze the past 25 years of research in two major social work journals, Social Work and Research on Social Work Practice, to provide a status update on the amount of ethnic-focused research being published within the discipline. This analysis examined trends in ethnic-focused publications, the change across time in percent of focused articles, the top topics studied, per ethnic group, the top funded topics, most and least involved funding agencies, geographical groupings of focused samples, the setting of the samples, measures used, and the percentage of samples based in a clinical …
Shifting Views On The Male-Female Relationship: Same-Sex Marriage And Other Social Consequences, W. Justin Dyer
Shifting Views On The Male-Female Relationship: Same-Sex Marriage And Other Social Consequences, W. Justin Dyer
Religious Educator: Perspectives on the Restored Gospel
The past two decades in the United States have seen the near-universal definition of marriage (between a man and woman) shift dramatically from majority acceptance to majority rejection. In 1996, 65 percent of Americans favored marriage as only between a man and a woman, but by 2015, the year the US Supreme Court legalized same-sex marriage, only 39 percent favored maintaining marriage as between a man and a woman.
Acylation Of Superoxide Dismutase 1 (Sod1) At K122 Alters Sod1 Localization And Sod1-Mediated Inhibition Of Mitochondrial Respiration, Nathan William Rodriguez
Acylation Of Superoxide Dismutase 1 (Sod1) At K122 Alters Sod1 Localization And Sod1-Mediated Inhibition Of Mitochondrial Respiration, Nathan William Rodriguez
Theses and Dissertations
Cu/Zn Superoxide Dismutase (SOD1), is a ubiquitous antioxidant enzyme with several emerging roles outside of its canonical function. SOD1 is also emerging in central roles in cancer and neurodegenerative pathologies. Little is known about SOD1 regulation, particularly at a post-translational level. Post-translational modifications (PTMs) play an important role in enabling proteins to rapidly respond to their environment. Therefore, identifying specific PTMs involved in protein regulation represents a powerful opportunity to interfere with any associated pathologies. This work employs proteomics to identify mechanisms of post-translation regulation on cell survival signaling proteins. We focused on SOD1, which protects cells from oxidative stress. …
Differences In German Youth Gender Ideologies: The Relationship Between Family Structure And Doing Gender, Alyssa Jane Alexander
Differences In German Youth Gender Ideologies: The Relationship Between Family Structure And Doing Gender, Alyssa Jane Alexander
Theses and Dissertations
Gender ideologies, which are constantly changing, are important for many outcomes in life, but the majority of gender ideology research focuses mainly on adults. Past research studying adult gender ideologies finds that adults' current relationship status affects their ideologies. For instance, divorced adults hold egalitarian ideologies more than stable married adults do (Davis, Greenstein and Marks 2007). Researchers attribute this finding to the types of gender behaviors adults perform with their partner or alone. What about youth? Understanding how these ideologies develop earlier in life is important, yet research rarely focuses on youth gender ideologies or their development. My research …
Co-Localization Patterns Of Aquaporin-4 With Amyloid Beta And Cd68 In Alzheimer's Disease And Cerebrovascular Disease, Anthony Bryan Crum
Co-Localization Patterns Of Aquaporin-4 With Amyloid Beta And Cd68 In Alzheimer's Disease And Cerebrovascular Disease, Anthony Bryan Crum
Theses and Dissertations
Aquaporin-4 (AQP4) is a key component in maintaining proper glymphatic flow. In recent years, the glymphatic system has been discovered and approached as a major factor in amyloid plaque clearance in Alzheimer's disease. This study examines the depolarization of AQP4 from the astrocytic endfeet and subsequent co-localization with amyloid plaques in the hippocampus and subiculum. Results show a significant pattern of co-localization in advanced Alzheimer's disease, as well as increases in AQP4 in cerebrovascular disease. This pattern shows AQP4 should be approached as a promising therapeutic area in future research.
Effects Of Curcumin And Ursolic Acid On The Mitochondrial Coupling Efficiency And Hydrogen Peroxide Emission Of Intact Skeletal Myoblasts, Daniel J. Tueller
Effects Of Curcumin And Ursolic Acid On The Mitochondrial Coupling Efficiency And Hydrogen Peroxide Emission Of Intact Skeletal Myoblasts, Daniel J. Tueller
Theses and Dissertations
Curcumin is a natural compound that improves blood glucose management. While some evidence from isolated mitochondria indicates that curcumin uncouples electron transport from oxidative phosphorylation, the effects of curcumin on mitochondrial respiration and hydrogen peroxide emission in intact skeletal muscle cells are not known. By assessing rates of oxygen consumption, we demonstrated for the first time that curcumin (40 µM) reduced the mitochondrial coupling efficiency (percentage of oxygen consumption that supports ATP synthesis) of intact skeletal muscle cells. A 30-minute incubation with curcumin decreased mitochondrial coupling efficiency by 17.0 ± 0.4% relative to vehicle (p < 0.008). Curcumin also decreased the rate of hydrogen peroxide emission by 43 ± 13% compared to vehicle (p < 0.05). Analysis of cell respiration in the presence of curcumin revealed a 40 ± 4% increase in the rate of oxygen consumption upon curcumin administration (p < 0.05 compared to vehicle). In additional experiments, no difference in mitochondrial coupling efficiency was observed between vehicle- and curcumin-pretreated cells after permeabilization of cell membranes (p > 0.7). The possibility of synergistic …
Do Adults Diagnosed With Autism Spectrum Disorders Have An Advantage In Real-World Visual Search Tasks?, Nicholas Charles Russell
Do Adults Diagnosed With Autism Spectrum Disorders Have An Advantage In Real-World Visual Search Tasks?, Nicholas Charles Russell
Theses and Dissertations
Individuals with Autistic Spectrum Disorders (ASD) often perform better than typically developing (TD) individuals in simple, albeit difficult, visual search tasks. This ability is often attributed to a lack of drive for coherence or superior local processing. We compare thirty adults with ASD with forty-nine TD individuals and twenty-seven adults with anxiety (ANX) across two real-world visual search tasks. Individuals had to find either a number superimposed over a real-world scene ("œno context" condition) or an object located in a contextually relevant location ("œcontext" condition). Each participant completed forty-one trials in each condition, each with a unique scene. Eye movements …
The Efficacy Of A Literature-Based Social Communication Intervention On Teacher Report Of Withdrawal For Children With Language Impairment, Cammy G. Peterson
The Efficacy Of A Literature-Based Social Communication Intervention On Teacher Report Of Withdrawal For Children With Language Impairment, Cammy G. Peterson
Theses and Dissertations
Research shows that children with language impairment (LI) often have deficits in social communication. The purpose of this study was to examine the effectiveness of a social communication intervention targeting emotion understanding on teacher perceptions of withdrawal in six elementary-aged boys with LI. The intervention incorporated four elements into treatment sessions: a) Story sharing of children's literature that was rich in emotional content and prosocial behaviors; b) Story enactment of the same children's literature; c) identification and discussion of pictures of facial expressions; and d) journaling to help internalize and reflect on emotions and social behaviors targeted. Two withdrawal subscales …
Utah Teachers' Perceptions Of Student Social Skills And Behaviors: A Developmental Perspective, Karrah Beth Sampson
Utah Teachers' Perceptions Of Student Social Skills And Behaviors: A Developmental Perspective, Karrah Beth Sampson
Theses and Dissertations
Students' appropriate social skills and behaviors are essential for classroom success at any level but are of special importance at an elementary school level when the foundations of these skill sets are developing (Lane, Givner, & Pierson, 2004). An initial study investigated which social skills Utah elementary school teachers identified as being most important, and which behaviors are most problematic during the elementary school years. Elementary school teachers (Kindergarten through sixth grade) were randomly selected from Utah's school districts. In total, 295 of 1,144 teachers (26% return rate) participated (Weed, 2015). As a follow-up, this current study utilized data from …
Investigating Motivations For Using Dating Websites And Geosocial Apps, Sean Calvin Aaron
Investigating Motivations For Using Dating Websites And Geosocial Apps, Sean Calvin Aaron
Theses and Dissertations
Using the internet to meet dating partners is increasingly popular and may have ramifications that are not yet fully realized. Although many dating sites have been operating for years, new online dating platforms continue to draw millions of new users. By using a large sample of people who use online dating platforms (n=1,286) we identified similarities and differences in what motivates people to use geosocial apps and dating sites. Motivations previously considered in the literature were supported and brought together in a single theory driven confirmatory factor analysis for each type of dating platform. A motivation to seek amusement was …
Does Marijuana Decriminalization Make The Roads More Dangerous?, Daehyeon Kim
Does Marijuana Decriminalization Make The Roads More Dangerous?, Daehyeon Kim
Theses and Dissertations
As the movement to decriminalize marijuana has gained more support throughout the United States, as of early 2017, 21 states have decriminalized the possession of a small amount of marijuana for personal recreational use, and more states are expected to decriminalize marijuana (GOVERNING 2017). Despite this strong move toward decriminalizing marijuana, however, the consequences of implementing such a policy are still very much unknown. One of the concerns regarding this movement to decriminalize marijuana is its potential impact on road safety (Schrader 2015; Roberts 2017; Halsey 2015). Although there are a few studies that have examined the association between marijuana …
The Relationship Between Generalized Joint Laxity And Hip Cartilage Thickness In Ballet And Modern Dancers, Noelle Jeanette Tuttle
The Relationship Between Generalized Joint Laxity And Hip Cartilage Thickness In Ballet And Modern Dancers, Noelle Jeanette Tuttle
Theses and Dissertations
Generalized joint laxity (GJL), a condition in which most joints of the body move beyond the accepted normal range of motion, is present in many ballet and modern dancers. It has been associated with an increased risk of injury, decreased muscle strength, and greater landing forces. Increased joint laxity results in joint instability and may precede the development of osteoarthritis, which is associated with a reduction in cartilage thickness. We hypothesized that dancers with GJL would have decreased hip cartilage thickness, as well as greater hip adduction angles and greater ground reaction force on landings. Twenty female ballet and modern …
Stress And Psychotherapy Outcome: Implementation Of A Heart Rate Variability Biofeedback Intervention To Improve Psychotherapy Outcome, Louise Fidalgo Wheeler
Stress And Psychotherapy Outcome: Implementation Of A Heart Rate Variability Biofeedback Intervention To Improve Psychotherapy Outcome, Louise Fidalgo Wheeler
Theses and Dissertations
Research has shown that psychotherapy patients experience increased physiological responsivity to stress which might negatively impact their experience in psychotherapy and their overall progress and outcome. The purpose of the present study was to investigate the effect of a heart rate variability biofeedback intervention on the physiological stress responsiveness and the psychotherapy outcomes of participants in psychotherapy. Forty college students attending psychotherapy at their university counseling center were divided into an experimental group and a control group. The experimental group participated in a 6-week biofeedback intervention and we assessed their physiological stress reactivity before and after implementation of the intervention, …
Correlates Of Risky Sexual Behavior In The People's Republic Of China, Kersti A. Spjut
Correlates Of Risky Sexual Behavior In The People's Republic Of China, Kersti A. Spjut
Theses and Dissertations
Risky sexual behaviors, or behaviors with the risk of an adverse health outcome, are on the rise. Rates of Sexually Transmitted Infections (STIs) are also on the rise. Research suggests that several variables are closely related to human sexual behavior, namely sexual attitudes, sexual knowledge, and gender. Individuals with more permissive sexual attitudes tend to engage in riskier sexual behaviors. Studies examining the relationship between sexual knowledge and risky sexual behavior show both positive and negative associations. Although risky behaviors can occur between partners of any gender, the present study focuses on heterosexual relationships.The present study uses data from a …
Comparing The Awl And Avl In Textbooks From An Intensive English Program, Michelle Morgan Hernandez
Comparing The Awl And Avl In Textbooks From An Intensive English Program, Michelle Morgan Hernandez
Theses and Dissertations
Academic vocabulary is an important determiner of academic success for both native and non-native speakers of English (Corson, 1997; Gardner, 2013; Hsueh-chao & Nation, 2000). In an attempt to address this need, Coxhead (2000) developed the Academic Word List (AWL)—a list of words common across a range of academic disciplines; however, Gardner & Davies (2014) identified potential limitations in the AWL and have more recently produced their own list of core academic vocabulary—the Academic Vocabulary List (AVL). This study compares the occurrences of the AWL and AVL word families in an intensive English program (IEP) corpus of 50 texts to …
Early Trauma Exposure And Marijuana Use As Well As Dependence From Adolescence To Emerging Adulthood, Ian Andru Marsee
Early Trauma Exposure And Marijuana Use As Well As Dependence From Adolescence To Emerging Adulthood, Ian Andru Marsee
Theses and Dissertations
This study examines the impact of two types of trauma exposure, mistreatment by an adult as a child and exposure to stressful life events as an adolescent, and their impact on marijuana use as an adolescent and emerging adult and marijuana dependence as an adult. This study also investigates the mediating role of depressive symptoms on the relationship between trauma exposure and marijuana use and dependence. The AddHealth dataset, a nationally representative and longitudinal dataset, was used to assess these relationships. Results show that both types of trauma predict marijuana use and dependence. Results also show that there are indirect …
A Pilot Study Examining The Role Of Treatment Type And Gender In Cortisol Functioning, Stephanie Young Davis
A Pilot Study Examining The Role Of Treatment Type And Gender In Cortisol Functioning, Stephanie Young Davis
Theses and Dissertations
This pilot study examined the effectiveness of Emotionally Focused Couples Therapy (EFT) compared to Treatment As Usual (TAU) in improving cortisol functioning among distressed couples. It also investigated the role of gender in cortisol functioning. Measures for cortisol were collected at five time points, both at pre- and posttreatment. Data were collected from a total of 60 couples, 20 of which received EFT and 40 of which received TAU. Overall, results from a two-way analysis of variance suggest that there are no significant differences between men or women, nor among couples in EFT and TAU, in posttreatment cortisol functioning. Directions …
Family Environments And Children's Cognitive Skills: Accounting For Heritable Influences Through Comparing Adopted And Biological Children, Shelby Mae Mcneill
Family Environments And Children's Cognitive Skills: Accounting For Heritable Influences Through Comparing Adopted And Biological Children, Shelby Mae Mcneill
Theses and Dissertations
Utilizing ECLS-K:2011 data, this study compares adopted and biological children to account for the role of heritable characteristics in explaining the relationship between family environments and children's cognitive skills. I find that cognitive skills do not differ across adopted and biological children after adjusting for the systematic differences between them. I also find that the relationship between family environment and children's cognitive skills does not differ across adopted and biological children. Taken together, these results suggest that the relationship between family environment and children's cognitive skills is not spurious.
Marital Quality And Cardiovascular Risk In Women During The Menopausal Transition, Tracy E. Brown
Marital Quality And Cardiovascular Risk In Women During The Menopausal Transition, Tracy E. Brown
Theses and Dissertations
Marital quality is linked to health benefits for men and women. Although women have less risk factors than men for cardiovascular disease prior to menopause, their risk increases substantially after menopause. The purpose of this study was to assess the impact of marital quality and vasomotor symptoms on cardiovascular risk factors including C-reactive protein (CRP) and carotid intima-media thickness (cIMT) in women before, during, and after the menopausal transition. The final sample consisted of 92 married women between the ages of 40 and 60 years. Hypotheses were tested using hierarchical regression and general linear modeling. Results suggest that greater marital …
The Relationship Between Auditory Habituation And Anxiety In Autism Spectrum Disorder, David Nicholas Top
The Relationship Between Auditory Habituation And Anxiety In Autism Spectrum Disorder, David Nicholas Top
Theses and Dissertations
Many individuals with autism spectrum disorder (ASD) have atypical sensory processing and behaviors including sensory sensitivity and low registration of sensory stimuli as well as sensory seeking and avoiding behaviors. Additionally, many individuals with ASD have clinically distressing levels of anxiety. Previous research suggests that there is a link between abnormal sensory processing, anxiety, and ASD. The purpose of this study was to experimentally observe auditory sensory processing using pupillometry methods, between ASD, control, and high-anxious control groups. While a difference in tonic pupil size was observed, there were no reactivity or habituation differences between the groups. There were no …
Sagittal Abdominal Diameter, Waist Circumference, And Bmi As Predictors Of Multiple Measures Of Glucose Metabolism: An Nhanes Investigation Of U.S. Adults, Shelby Anne Firouzi
Sagittal Abdominal Diameter, Waist Circumference, And Bmi As Predictors Of Multiple Measures Of Glucose Metabolism: An Nhanes Investigation Of U.S. Adults, Shelby Anne Firouzi
Theses and Dissertations
OBJECTIVE: The key objective of the present investigation was to compare associations between sagittal abdominal diameter (SAD), waist circumference, and BMI to the oral glucose tolerance test (OGTT), along with fasting glucose, HbA1c, and HOMA-IR, in a nationally representative sample of U.S. adults. The study also analyzed the effect of multiple covariates on the anthropometric and glucose metabolism associations. METHODS: A cross-sectional design, including 3,582 subjects, was used. SAD was assessed using an abdominal caliper. All other data were collected following strict NHANES protocol. The OGTT was the primary variable used to index glucose metabolism. Fasting glucose, HbA1c, and HOMA-IR …
Survivors' Perceptions Of Support Following A Parent's Suicide, Suzanne Nicole Bennett
Survivors' Perceptions Of Support Following A Parent's Suicide, Suzanne Nicole Bennett
Theses and Dissertations
Children who experience a parent's death by suicide are a vulnerable population at risk for emotional and mental health issues as well as suicide attempts (Cerel, Fristad, Weller, & Weller, 1999; Kuramoto et al., 2010; Wilcox et al., 2010). Yet, in spite of the knowledge that effective postvention is in reality prevention (Cerel et al. 2008), relatively little is known about these children and adolescents, particularly regarding their experiences following the suicide. The current research study investigated which resources, assistance, and actions of those around the child were perceived as most helpful and unhelpful following the parental suicide. Through semi-structured …
Continuous Permeability Measurement During Unidirectional Vacuum Infusion Processing, David Wayne Hoagland
Continuous Permeability Measurement During Unidirectional Vacuum Infusion Processing, David Wayne Hoagland
Theses and Dissertations
Composite materials have traditionally been used in high-end aerospace parts and low-end consumer parts. The reason for this separation in markets is the wide gap in technology between pre-preg materials processed in an autoclave and chop strand fiberglass blown into an open mold. Liquid composite molding has emerged as a bridge between inexpensive tooling and large, technical parts. Processes such as vacuum infusion have made it possible to utilize complex layups of reinforcement materials in an open mold style set-up, creating optimal conditions for composites to penetrate many new markets with rapid innovation. Flow simulation for liquid composite molding is …