Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (5474)
- Medicine and Health Sciences (3232)
- Social and Behavioral Sciences (2927)
- Physical Sciences and Mathematics (2652)
- Education (1844)
-
- Biology (1587)
- Engineering (1485)
- Arts and Humanities (1482)
- Law (1274)
- Psychology (793)
- Medical Specialties (767)
- Environmental Sciences (764)
- Higher Education (762)
- Animal Sciences (725)
- Medical Sciences (717)
- Chemistry (712)
- Biochemistry, Biophysics, and Structural Biology (647)
- Plant Sciences (628)
- Ecology and Evolutionary Biology (621)
- Sociology (454)
- Public Health (419)
- Microbiology (362)
- Biochemistry (346)
- History (346)
- Cell and Developmental Biology (341)
- Earth Sciences (340)
- Genetics and Genomics (329)
- Library and Information Science (318)
- Agriculture (313)
- Computer Sciences (310)
- Institution
-
- University of Nebraska - Lincoln (1473)
- University of South Florida (625)
- Brigham Young University (575)
- Purdue University (550)
- Louisiana State University (541)
-
- TÜBİTAK (538)
- City University of New York (CUNY) (484)
- University of Kentucky (472)
- Utah State University (413)
- Washington University School of Medicine (391)
- University of Montana (385)
- Virginia Commonwealth University (328)
- Clemson University (302)
- University of Rhode Island (287)
- University of Alabama at Birmingham (271)
- Nova Southeastern University (270)
- University of Malaya (270)
- University of Plymouth (265)
- Georgia Southern University (260)
- University of Central Florida (260)
- University of South Carolina (255)
- University of Arkansas, Fayetteville (253)
- University of Connecticut (243)
- California Polytechnic State University, San Luis Obispo (235)
- Wayne State University (235)
- Zucker School of Medicine at Hofstra/Northwell (235)
- Old Dominion University (229)
- Portland State University (228)
- University of New Mexico (228)
- University of New Hampshire (221)
- Keyword
-
- Humans (209)
- Animals (162)
- Education (156)
- Biology (143)
- Newspaper (141)
-
- Gender (134)
- Biological Sciences (130)
- Climate change (122)
- Female (112)
- 2014 (102)
- Cancer (94)
- Biological sciences (91)
- Research (91)
- Genetics (88)
- Ecology (85)
- Student newspaper (84)
- Male (82)
- Thomas Jefferson University (79)
- Evolution (77)
- Mice (74)
- Environment (73)
- Newsletter (72)
- Georgia Southern University (70)
- Sustainability (70)
- History (69)
- Obesity (69)
- Higher education (68)
- Psychology (68)
- Applied sciences (67)
- Children (66)
- Publication
-
- Theses and Dissertations (853)
- Electronic Theses and Dissertations (446)
- Faculty Publications (439)
- Open Access Publications (369)
- Journal Articles (271)
-
- Journal of Undergraduate Research (258)
- Dissertations (231)
- Master's Theses (224)
- USF Tampa Graduate Theses and Dissertations (222)
- Open Access Dissertations (221)
- Publications and Research (217)
- All Forum Articles (203)
- Open Access Theses (189)
- Student Works (2010-2019) (179)
- Dissertations, Theses, and Capstone Projects (158)
- Graduate Theses, Dissertations, and Problem Reports (ETD) (152)
- Honors Theses (152)
- Theses (152)
- Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions) (141)
- All ETDs from UAB (137)
- Doctoral Dissertations (137)
- Dartmouth Scholarship (136)
- University of Montana Course Syllabi (134)
- Graduate Theses and Dissertations (132)
- LSU Doctoral Dissertations (128)
- United States Department of Agriculture Wildlife Services: Staff Publications (119)
- Faculty Scholarship (118)
- LSU Master's Theses (118)
- Turkish Journal of Biology (118)
- Articles (109)
- Publication Type
- File Type
Articles 20731 - 20760 of 25853
Full-Text Articles in Entire DC Network
Arts Entrepreneurship: An Essential Sub-System Of The Artist's Meta-Praxis, Jonathan Gangi
Arts Entrepreneurship: An Essential Sub-System Of The Artist's Meta-Praxis, Jonathan Gangi
Theses and Dissertations
As the field of Arts Entrepreneurship education continues to grow, the barriers it confronts prevent maximum vitality. Leading scholars and administrators indicate that program development and formal accreditation standards are important components supporting the field's growth. As such, this document explores next steps and examines how to move the field towards academic maturity.
First, notable Arts Entrepreneurship academic programs are compared and contrasted as a representative sample of existing curricular approaches. Second, issues of accreditation are analyzed as barriers preventing growth, followed by recommendations for removing these obstacles. Third, the Artist's Meta-Praxis conceptual framework is presented as a way to …
A Study On Atmospheric And Oceanic Processes In The North Indian Ocean, Clifford Steven Felton
A Study On Atmospheric And Oceanic Processes In The North Indian Ocean, Clifford Steven Felton
Theses and Dissertations
Studies on oceanic and atmospheric processes in the Indian Ocean are an active and important area of scientific research. Understanding how intraseasonal and interannual variations impact both the ocean and atmosphere will aid in delineating potential feedback mechanisms and global teleconnections. Thanks to recent efforts focused on expanding observational capabilities and developing models for this region, researchers have been able to begin investigating atmospheric and oceanic processes in the Indian Ocean. This study focuses on the impact of the El Niño Southern Oscillation (ENSO) on tropical cyclone activity over the Bay of Bengal (BoB) and on developing a method for …
Best Practices In The Management Of Pediatric Obesity In Primary Care Clinics, Lori Moseley
Best Practices In The Management Of Pediatric Obesity In Primary Care Clinics, Lori Moseley
Theses and Dissertations
Obesity prevalence among children and adolescents has nearly tripled since 1980. Children and adolescents are at risk for developing the comorbidities seen in obese and overweight adults such as hypertension, type 2 diabetes, and sleep apnea. Traditional treatment for obese and overweight children involved counseling children and their families. Current recommendations include a comprehensive staged approach to weight management that includes prevention plus structured weight management, comprehensive multidisciplinary intervention and tertiary care intervention. Unfortunately structured weight management programs have not been widely available, leaving the primary provider with limited options.
The purpose of this project was to analyze the literature …
Approximate Quantum Trajectory Method For Modeling Chemical Reaction Dynamics: Application To Enzymatic Proton Transfer, James William Mazzuca
Approximate Quantum Trajectory Method For Modeling Chemical Reaction Dynamics: Application To Enzymatic Proton Transfer, James William Mazzuca
Theses and Dissertations
Molecular dynamics simulations, providing a detailed picture of the reaction mechanism, is an essential tool for theoretical and experimental chemists. In these simulations the nuclei are typically treated as classical particles, but under some conditions (low energies and temperatures, processes involving multiple electronic states) a classical description is inappropriate. Quantum effects of nuclear motion, such as tunneling and zero-point energy can play an important role in determining a reaction mechanism, yet exact quantum dynamics methods are limited to reactive systems of just 3-4 atoms. Central to this work is the development and implementations of an efficient trajectory-based methodology, in which …
Microfinance And Poverty Reduction: How Risks Associated With Government Policies Affect Whether Microfinance Alleviates Poverty In Latin-America, Brian Warby
Theses and Dissertations
The expansion of financial services to the poor, now widely referred to as microfinance, quickly saw tremendous success in Bangladesh beginning in the 1970's and was exported to a number of other countries. For a time microfinance was spoken of as a panacea, in part because it is more detached from governments than other forms of poverty alleviation. I develop a model based on expected utility theory that looks at how risks associated with government policies and characteristics affect whether this mechanism eases poverty. Using a large N analysis of Latin-American states from 1990-2010 and a case study analysis to …
An Evolutionary Perspective On Infectious And Chronic Disease, John Eberth
An Evolutionary Perspective On Infectious And Chronic Disease, John Eberth
Theses and Dissertations
The integration of evolutionary biology with traditional medicine can elucidate novel mechanisms of contemporary disease. Whereas the goal of traditional medicine is to treat and cure the proximate causes, evolutionary biology aims to understand the driving forces behind why humans are susceptible to disease. To form the basis of this hypothesis we postulate that modern man's current genetic information was programmed at a time, and in an environment, that is not relevant to today's human populations. The discordance between these genes of our ancestors and the environment of contemporary humans is thought to be a major reason for the increase …
Lead Exposure And Crime, Tara Elaine Martin
Lead Exposure And Crime, Tara Elaine Martin
Theses and Dissertations
While lead exposure during childhood has been linked to criminal activity later in life, prior research has failed to develop a theoretical foundation explaining why lead and crime rates are positively related at the aggregate level. Utilizing tract-level data, I examine the relationship among elevated blood lead level rates, levels of concentrated disadvantage, and crime rates. Through a biosocial approach, I explore the lead-crime relationship using a measure of concentrated disadvantage to account for the variations across tracts. Finally, I discuss the results of this study as well as implications for public policy and future research.
Classification Of Low Velocity Impactors Using Spiral Sensing Of Acousto-Ultrasonic Waves, Chijioke Agbasi
Classification Of Low Velocity Impactors Using Spiral Sensing Of Acousto-Ultrasonic Waves, Chijioke Agbasi
Theses and Dissertations
The non-linear elastodynamics of a flat plate subjected to low velocity foreign body impacts is studied, resembling the space debris impacts on the space structure. The work is based on a central hypothesis that in addition to identifying the impact locations, the material properties of the foreign objects can also be classified using acousto-ultrasonic signals (AUS). Simultaneous localization of impact point and classification of impact object is quite challenging using existing state-of-the-art structural health monitoring (SHM) approaches. Available techniques seek to report the exact location of impact on the structure, however, the reported information is likely to have errors from …
Understanding Hydrothermal Carbonization Of Mixed Feedstocks For Waste Conversion, Xiaowei Lu
Understanding Hydrothermal Carbonization Of Mixed Feedstocks For Waste Conversion, Xiaowei Lu
Theses and Dissertations
Hydrothermal carbonization (HTC) is an environmentally beneficial means to convert waste materials to value-added solid and liquid products with minimal greenhouse gas emission. Research is lacking on understanding the influence of critical process conditions on product formation and environmental implication associated with HTC of waste streams. This work was conducted to determine how reaction conditions and heterogeneous compound mixtures (representative of municipal wastes) influence hydrothermal carbonization processes. The specific experiments include: (1) determine how carbonization product properties are manipulated by controlling feedstock composition, process conditions, and catalyst addition; (2) determine if carbonization of heterogeneous mixtures follows similar pathways as that …
Genetic Stock Identification And Migration In Black Sea Bass (Centropristis Striata) Along The Western Atlantic Coast And Gulf Of Mexico, Justin Francis Lewandowski
Genetic Stock Identification And Migration In Black Sea Bass (Centropristis Striata) Along The Western Atlantic Coast And Gulf Of Mexico, Justin Francis Lewandowski
Theses and Dissertations
The black sea bass, Centropristis striata, is a member of the family Serranidae that is commercially important throughout its range, which extends throughout the western Atlantic (from Cape Cod, Massachusetts to Cape Canaveral, Florida) and Gulf of Mexico (from Mobile Bay, Alabama to Tampa Bay, Florida). There are two known subspecies, C. striata striata in the Atlantic and C. striata melana in the Gulf, and through behavioral and morphological evidence two separate stocks are managed in the Atlantic, north and south of Cape Hatteras, NC. Recent genetic studies on mitochondrial DNA (mtDNA) have supported this. To further investigate the relationships …
Parental Satisfaction And Teacher Perspectives On Inclusive Education Of Students With Asperger Syndrome: An Educational Tool, Hannah Warren
Parental Satisfaction And Teacher Perspectives On Inclusive Education Of Students With Asperger Syndrome: An Educational Tool, Hannah Warren
Theses and Dissertations
Purpose: This study aimed to evaluate parental satisfaction and anxiety regarding the high school educational experiences of their child with a previous diagnosis of Asperger syndrome (AS), as well as educators' understanding of the diagnosis and what information they deemed important to know about the student. The goal of this study was to develop an educational tool that would aid in initiating communication between parents of a student with AS, or with a new diagnosis of high-functioning autism (HFA), and their teachers. This would be an additional resource of use to pediatric genetic counselors that frequently see families regarding a …
Food Insecurity And Physical Activity Among U.S. Populations, Quyen G. To
Food Insecurity And Physical Activity Among U.S. Populations, Quyen G. To
Theses and Dissertations
Objectives: Examine the association between food insecurity (FI) and physical activity (PA) in the U.S. population.
Methods: Accelerometry (PAM) and self-report PA (PAQ) data from NHANES 2003-2006 were used. Those aged less than six years or were older than 65 years, pregnant, with physical limitations, or with family income above 350% of the poverty line were excluded. FI was measured by the USDA Household Food Security Survey Module. Crude and adjusted odd ratios were calculated from logistic regression to identify the association between FI and adherence to the PA recommendation. Crude and adjusted coefficients were calculated from linear regression to …
Antibiotic Usage In Relation To Resistant Bacterial Infections And Liver And Kidney Cancer Outcomes In South Carolina, Prea Thathiah
Antibiotic Usage In Relation To Resistant Bacterial Infections And Liver And Kidney Cancer Outcomes In South Carolina, Prea Thathiah
Theses and Dissertations
Antibiotics are one of the most beneficial discoveries in medicine and public health. However, the use, overuse, and misuse of these drugs have led to increases in antibiotic resistant bacterial infections (ARI). Furthermore, previous epidemiological studies have linked antibiotic use to breast cancer, but these studies have not included effects on metabolic organs, such as the liver and kidneys. This dissertation investigates the role of antibiotic use in infections and liver and kidney cancers in the state of South Carolina. Using ecological study methods and Poisson regression to determine relative risk ratios, it was found that antibiotic use is a …
Comparison Of Confidence Intervals Of Intracluster Correlation Coefficient Estimates For Binary Variables, Ashok Varma Samantapudi
Comparison Of Confidence Intervals Of Intracluster Correlation Coefficient Estimates For Binary Variables, Ashok Varma Samantapudi
Theses and Dissertations
The present study evaluates the length of the confidence interval and the percentage of time the true parameter is captured by the confidence interval for four intracluster correlation estimators. These are the ANOVA estimator, the Pearson pairwise estimator with constant weights (PEQ), the kappa type estimator called FC, and an estimator using a Resampling method (RM) for binary data. We compared these different estimates by using a large simulation study. The data we simulated is correlated binary data, which assumes an exchangeable correlation structure. We also included different variations of the number of clusters, cluster size, cluster size variation, event …
Mitochondrial Replication From Embryogenesis To Early Adulthood, In Dui Species, Mytilus Galloprovincialis, Ellen Blenn Richardson
Mitochondrial Replication From Embryogenesis To Early Adulthood, In Dui Species, Mytilus Galloprovincialis, Ellen Blenn Richardson
Theses and Dissertations
Eukaryotes typically inherit mitochondria strictly maternally. There are however a group of bivalve molluscs that inherit different mitochondrial genomes from each parent. The paternally inherited mtDNA (M-type) is localized to, and dominates over the maternally inherited mtDNA (F-type) in the gonads of the male offspring, but is not normally retained in any tissue of the female offspring. This process is termed Double Uniparental Inheritance (DUI). Using quantitative PCR (qPCR), this study examines mtDNA replication compared to total DNA replication through embryonic stages of development and into early adulthood of the DUI species, Mytilus galloprovincialis. Results indicate that up through the …
A Community-Driven Approach To The Development Of A Digital Decision Aid To Facilitate Informed Decision Making For Prostate Cancer Screening Among African-American Men In Communities Of Faith, Otis Lashaun Owens
Theses and Dissertations
Background: African American (AA) men are significantly more likely to die of prostate cancer (PrCA) than other racial groups. Therefore, it is critical to identify effective strategies for providing information about the risks, benefits, and uncertainties of PrCA screening and the importance of informed decision making (IDM). To assess whether a computer-based IDM decision aid (DA) for PrCA screening would be appropriate for middle-age and older AA men, this formative evaluation study examined participants (1) PrCA risk and screening knowledge, 2) decision-making processes for PrCA screening, and 3) usage of, attitudes toward, and access to interactive communication technologies (ICTs). The …
The Composition And Downward Vertical Transport Of Particulate Phosphorus In The Cariaco Basin, Venezuela, Anne S. Opseth
The Composition And Downward Vertical Transport Of Particulate Phosphorus In The Cariaco Basin, Venezuela, Anne S. Opseth
Theses and Dissertations
In order to understand the biogeochemical cycling of phosphorus (P) in a coastal marine ecosystem, the chemical composition and the sinking flux of particulate P was analyzed within sediment trap particles collected in the Cariaco Basin, Venezuela. Total, inorganic and organic P composition was examined across the time series (1995-2010) using a modified Aspila method and sequential extraction techniques. Particulate inorganic P (PIP) dominated the total particulate P (TPP) pool (~52%) when averaged over the entire water column. Relationships between particulate nitrogen (PN) and particulate organic carbon (POC) fluxes versus TPP fluxes followed expected canonical Redfield ratios except for a …
Bioremediation Of Hydrocarbons Via Geobacillus, Amanda T. Lade
Bioremediation Of Hydrocarbons Via Geobacillus, Amanda T. Lade
Honors Theses and Capstones
Hydrocarbon remediation is a vital aspect of environmental cleanup, especially in soil and groundwater to ensure the health and safety of the public’s drinking water. A possible solution to this contamination is bioremediation, the use of microorganisms to degrade pollutants. This research analyzes the effectiveness of Geobacillus as a hydrocarbon degrader for the use of bioremediation. Twelve strains were identified from oil-contaminated sources and grown in minimal media with crude oil as the carbon source. Growth was observed in the crude oil samples, demonstrating the possibility of bioremediation of hydrocarbons via Geobacillus.
The Distribution Of Fitness Effects Of Spontaneous Mutations In Vibrio Fischeri, Chelsea K. Jones
The Distribution Of Fitness Effects Of Spontaneous Mutations In Vibrio Fischeri, Chelsea K. Jones
Honors Theses and Capstones
Mutations are the ultimate source of the biological diversity on which natural selection acts, but the vast majority of these mutations are harmful. As such, mutations lead to disease states like cancer, extinction of small populations, and can drive pathogen evolution. Unfortunately, because mutations are rare and past studies have been subject to detection biases, very little is known about the distribution of fitness effects from naturally occurring mutations. In this study, we used mutation accumulation and full genome sequencing to capture naturally occurring mutations before they were exposed to the sieve of natural selection in Vibrio fischeri. We …
Insights From Project Feederwatch: Changes In The Abundance And Occurrence Of Birds In New Hampshire Over The Past 24 Years, Lee A. Sutcliffe
Insights From Project Feederwatch: Changes In The Abundance And Occurrence Of Birds In New Hampshire Over The Past 24 Years, Lee A. Sutcliffe
Honors Theses and Capstones
Changes in the climate and land use over time can lead to changes in the composition of wildlife communities. Using data from Project FeederWatch, we examine trends in the abundance and occurrence of birds documented in the winters from 1988 to 2012 in New Hampshire. Changes in abundance and occurrence are summarized for individual bird species as well as across species based on life history traits. In addition, we examined trends for the state as a whole as well as in subregions. We discuss these changes with regards to the variations of climate and land use that are occurring throughout …
Quality Of Life, Health Status, And Academic Success In Undergraduates, Amanda Kuhlman
Quality Of Life, Health Status, And Academic Success In Undergraduates, Amanda Kuhlman
Honors Projects
Background: Undergraduates are making their first autonomous health decisions. This is an opportune stage for examining the precursors to the chronic diseases of adulthood. The purpose of this study was to examine correlations between health status, quality of life, and academic success in college students.
Methods: A quality of life survey (Goodman, 1997) was utilized to determine the behavioral difficulties of 86 first and second year college students. Each of these behavioral categories were then examined for possible correlations with blood pressure, weight, body mass index (BMI), alcohol consumption, body fat percentage, and any changes in these categories from the …
Active Learning In The Science Classroom, Amber Mathias
Active Learning In The Science Classroom, Amber Mathias
Honors Projects
This study focused on at active learning and how it affects student attitude and achievement in college level biology courses. A Biology Attitude Survey was administered at the beginning and middle of the semester to determine if student’s attitude towards biology improved from the active learning setting. The student’s attitude was also assessed from a classroom format survey containing questions about the benefits of undergraduate Learning Assistants and the active learning classroom format. These attitudinal measures were then compared with student’s achievement in biology by looking at their midterm grade, pre-test and post-test assessment scores. The ANOVA revealed that students …
Biology I Lab, Todd Schraw
Developmental Biology (Embryology), Steelman Library, Todd Schraw Dr.
Developmental Biology (Embryology), Steelman Library, Todd Schraw Dr.
Syllabus Repository
No abstract provided.
Biol 4903: Senior Capstone, Steelman Library, Jerm J. Day-Storms Dr.
Biol 4903: Senior Capstone, Steelman Library, Jerm J. Day-Storms Dr.
Syllabus Repository
No abstract provided.
Raquette Lake News, Winter/Spring 2014, State University Of New York College At Cortland
Raquette Lake News, Winter/Spring 2014, State University Of New York College At Cortland
Outdoor Education
The Center for Environmental and Outdoor Education's Raquette Lake Newsletter, published in Winter/Spring 2014.
The Role Of Microrna In Staphylococcal Enterotoxin B-Induced Inflammation And Acute Lung Injury, Roshni Rao
The Role Of Microrna In Staphylococcal Enterotoxin B-Induced Inflammation And Acute Lung Injury, Roshni Rao
Theses and Dissertations
Staphylococcal enterotoxin B (SEB) is a potent activator of the Vβ8+T-cells leading to the proliferation of nearly 30% of the T-cell pool. As a consequence, excessive amounts of cytokine mediators are released leading to extensive tissue damage and sometimes toxic shock and death. Due to the ease with which SEB can be aerosolized anddisseminated, it is considered a biological weapon. In the current study, we investigated the pro-inflammatory effects of SEB in two mouse models of acute inflammatory lung injury. Specifically, while inflammatory cues are known to elicit changes in key transcriptional factors and gene expression, we explored for the …
Testing Bidirectional Contextual Effects Of Adolescent Risk Factors On Young Adulthood Outcomes: A Life Course Perspective To Gangs, Andrea E. Lamont
Testing Bidirectional Contextual Effects Of Adolescent Risk Factors On Young Adulthood Outcomes: A Life Course Perspective To Gangs, Andrea E. Lamont
Theses and Dissertations
Leading theories in developmental science emphasize the role of the individual as an active agent in shaping her or his environment. Yet, most empirical work has focused on unidirectional models, ultimately treating the individual as a passive recipient of environmental risk. Part of this gap between theory and analysis is methodological in nature – i.e., classical statistical methods typically do not allow for the modeling of bidirectional influences or complex longitudinal relations. Recent advancements in longitudinal methodologies, however, expand our ability to answer more nuanced developmental questions. In this dissertation, I demonstrate how advanced longitudinal methods could be used to …
An Analysis Of Interpreter-Mediated Healthcare Interactions, Robin Dawson Estrada
An Analysis Of Interpreter-Mediated Healthcare Interactions, Robin Dawson Estrada
Theses and Dissertations
The content and quality of communication between nurse practitioners and patients in primary care encounters contributes to diagnostic decision making, the provision of culturally appropriate interventions, and ultimately may impact health outcomes. In caring for patients with limited English proficiency, the addition of language discordance increases the complexity of the interaction and communication processes and the potential for disparate health outcomes. Most prior research on interpreter-mediated healthcare interactions has focused on accuracy, cost, satisfaction, and role enactment, but there is a lack of systematic research examining the actual interaction processes within the context of primary care clinic visits.
The aim …
Smokers, Ajit Dhillon
Smokers, Ajit Dhillon
Theses and Dissertations
Smokers is a multi-perspective surveillance spy thriller that juxtaposes the days leading up to the financial collapse with the days leading to the Bay of Pigs in Cuba. The first three chapters of book set up the multiple narrative point of view construct that will drive the narrative. Opening in New York, March 2007, a year before the financial collapse or the knowledge of the collapse and its implications becomes available to the public. We follow James, an administrative assistant at a hedge fund in the financial district. As the chapter unfolds we learn more about his home life. His …