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Diurnal And Semidiurnal Internal Waves Near Two Harbors, Santa Catalina, California, Craig G. Gelpi

Monographs of the Western North American Naturalist

Internal waves at both diurnal and semidiurnal frequencies are common on island slopes in the Southern California Bight (SCB). Amplitudes in both regimes are similar, although the phenomenology at the 2 frequencies is expected to be different since the bight is north of the critical latitude (30°), making diurnal modulations evanescent though semidiurnal waves can propagate. Understanding the driving forces for the internal waves may provide insight into vertical mixing in the bight. We used long-duration time series of ocean temperatures measured near the Wrigley Institute for Environmental Studies (WIES), Santa Catalina Island, to study highly resolved spectra and seasonal …

A Social-Ecological Framework To Integrate Multiple Objectives For Environmental Flows Management, David M. Martin, Dylan Harrison-Atlas, Nicholas A. Sutfin, N. Leroy Poff

Journal of Contemporary Water Research and Education

"Environmental flows" is a research discipline that emphasizes freshwater allocation in rivers to sustain desired ecological conditions and human well-being. The basis for environmental flow requirements has traditionally relied on hydrological and ecological data. Contemporary methods focus on detailed hydro-ecological relationships within river ecosystems; however, there is currently no structured approach to systematically incorporate socially relevant data into the environmental flows discipline. To address this limitation we developed a flexible framework that applies a social-ecological systems approach to account for multiple flow-related objectives that reflect both biophysical sustainability and societal preferences. First, we conceptualize the freshwater social-ecological system as a …

Social Observation For Sustainability Science About Water, John B. Braden

Journal of Contemporary Water Research and Education

I advance the following argument: (1) Coupled observation of humans and nature at large scale is important to many fundamental questions of sustainability. (2) Current programs observing natural and social systems are inadequate to address fundamental questions of sustainability at coarse scale. (3) Water is an attractive medium around which to design an observation program, and water researchers agree on many characteristics of water-related data needed to advance sustainability science. (4) A program of coupled observation around water will need to be (a) realistic about attainable scope, (b) design data collection scientifically to be representative at useful scale(s) and of …

Can We Afford The Costs Of Orphan Disease Treatments?, Kenneth P. Serbin

At Risk for Huntington's Disease

No abstract provided.

Temporal Discounting: Using A Shifting Delay Procedure To Teach Delay-To-Reinforcement, Tiffany Larae Freeze Denton

Electronic Theses and Dissertations Archive

The effects of delay on subjective reward value is referred to as temporal or delay discounting, as the value of the reward is discounted as a result of a delay to the reward's presentation. One way to measure the subjective value of delayed rewards is by assessing choice. In examining temporal discounting, choice trials are presented between small immediate rewards and larger delayed rewards. Procedures that reverse choice responding from smaller immediate rewards to larger delayed rewards are important to teaching an organism to tolerate delayed reinforcement. Teaching children to make adaptive choices such as compliance, completing assigned tasks, and …

The Effects Of High-Stakes Testing And Social Studies Pedagogy: An Examiniation Of Social Studies Teaching Methods And Curriculum, Sarah Dawn Smilowitz

Electronic Theses and Dissertations Archive

The purpose of this study was to examine how the changes in social studies teaching methods and content pedagogy have changed due to the increase in high-stakes testing in the area of secondary social studies. The primary questions addressed in this study were focused on teacher perceptions regarding high-stakes testing in social studies, and content pedagogy currently used in the social studies classroom. The participants in this study included 12 high school U.S. History teachers from 3 public schools. A phenomenological study was conducted to gather information related to the following research questions: (1) What are the perceptions of high …

Genetic Variability And Fruit Morphological Diversity In The Tomato Germplasm, Ramhari Thapa

Electronic Theses and Dissertations Archive

Tomato (Solanum lycopersicum L.), broadly divided into two varieties: Solanum lycopersicum var. lycopersicum (domesticated tomato) and the weedy Solanum lycopersicum var. cerasiforme (cherry tomato), is closely related to the wild tomato species Solanum pimpinellifolium. Studies show presence of a very low genetic diversity among tomato cultivars, which is estimated to be lower than 5% of that available in nature. With the estimation of such a low level of genetic variability in the germplasm, assessment of the extent and nature of the genetic variation in tomatoes would be important for breeding and genetic resource conservation programs. I used AFLP data to …

Chitosan Sponge Microbead Delivery Composite For External Stimuli Responsive Local Drug Delivery, Alex Prentice Hoban

Electronic Theses and Dissertations Archive

Orthopedic wound infections from complex trauma are a prevalent problem. Systemic delivery of antibiotics may result in sub-inhibitory concentrations of antibiotic in the wound site due to avascular nature of these injuries and can lead to development of antibiotic resistant infections. Local antibiotic delivery can overcome this shortcoming of systemic therapy. A customizable bio-polymer that can be loaded with antibiotics and be stimulated to release a drug on demand may provide an improved adjunct clinical therapy for preventing/treating infections in complex trauma injuries. The aim of this study is to incorporate iron oxide laden chitosan microbeads into the chitosan sponge …

Analysis Of The Interactions Between Graphene Oxide And Biomolecules And Protein Fibrillation Using Surface Chemistry And Spectroscopy, Shanghao Li

Open Access Dissertations

Graphene oxide (GO), a novel 2−dimensional carbon based nanomaterial, has shown potential applications in biomedical and biological field, including drug and gene delivery, sensing, and bioimaging. However, one critical question needs to be addressed before any actual application: how does GO interact with biological molecules, such as amino acids, peptides, proteins, and biomembranes? In this study, spectroscopy, microscopy, and surface chemistry were applied to fundamentally understand the nature of interactions between these molecules and GO. GO was found to interact with amino acids, peptides, and proteins by fluorescence quenching. The main quenching mechanism between GO and Trp or Tyr was …

Optical Properties Measurements Of Rat Muscle And Myocardium At 980 And 1860 Nm Using Single Integrating Sphere Technique, Mohamed Almadi

Open Access Theses

The optical properties of a rat muscle and myocardium were measured at two wavelengths 980 and 1860 nm. The tissues used in this experiment were fresh and sliced to a specific thickness of 600 μm. A single integrating sphere system was used to determine the diffuse reflectance, diffuse transmittance, and collimated transmittance of these tissue samples. An inverse Monte Carlo algorithm was then used to calculate the optical properties from the measurements obtained from the single integrating sphere system. The system was calibrated and validated by using distilled water. The absorption coefficient of the rat’s muscles was found to be …

Jfk Memory Project At Wku (Mss 491), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid and full text of remembrances (Click on Additional Files), photographs, and oral history interviews for Manuscripts Collection 491. Materials collected during a commemorative project related to a campaign visit John F. Kennedy made to Bowling Green, Kentucky in October 1960 and to his November 1963 assassination. The core of the collection is a set of remembrances that were sent into the Department of Library Special Collections, WKU about both events. Other items include oral history interviews (8), photos (36), contemporary news clippings as well as clippings about the project, a scrapbook of post-assassination clippings, and assorted other ephemera …

Suicide Prevention Is Topic Of Uab Community Talk, Staff

Browse All News

No abstract provided.

Recent African Immigrants’ Fatherhood Experiences In America: The Changing Role Of Fathers, Zacharia N. Nchinda

Trotter Review

This article examines the lived experiences of recent African immigrant fathers in the United States. It focuses specifically on recent African immigrant fathers with African women as wives and children below the age of 18. Its aim is a better understanding of these fathers’ involvement in the life of their children and the changes immigration has forced upon the fathers. Information for the study emanates from interviews carried out with African immigrant fathers in the Milwaukee area, supplemented by my knowledge of African immigrant communities. The categorization of the data uses a construct established by the mid-1990s DADS Project initiative …

Digital Anthropomorphic Phantoms Of Non-Rigid Human Respiratory And Voluntary Body Motion For Investigating Motion Correction In Emission Imaging, Arda Könik, Caitlin M. Connolly, Karen L. Johnson, Paul Dasari, Paul W. Segars, P. H. Pretorius, Clifford Lindsay, Joyoni Dey, Michael A. King

Faculty Publications

The development of methods for correcting patient motion in emission tomography has been receiving increased attention. Often the performance of these methods is evaluated through simulations using digital anthropomorphic phantoms, such as the commonly used extended cardiac torso (XCAT) phantom, which models both respiratory and cardiac motion based on human studies. However, non-rigid body motion, which is frequently seen in clinical studies, is not present in the standard XCAT phantom. In addition, respiratory motion in the standard phantom is limited to a single generic trend. In this work, to obtain a more realistic representation of motion, we developed a series …

Major Alteration In Coxsackievirus B3 Genomic Rna Structure Distinguishes A Virulent Strain From An A Virulent Strain, Jerome Prusa, Johanna Missak, Jeff Kittrell, John J. Evans, William Tapprich

Biology Faculty Publications

Coxsackievirus B3 (CV-B3) is a cardiovirulent enterovirus that utilizes a 5′ untranslated region (5′UTR) to complete critical viral processes. Here, we directly compared the structure of a 5′UTR from a virulent strain with that of a naturally occurring avirulent strain. Using chemical probing analysis, we identified a structural difference between the two 5′UTRs in the highly substituted stem-loop II region (SLII). For the remainder of the 5′UTR, we observed conserved structure. Comparative sequence analysis of 170 closely related enteroviruses revealed that the SLII region lacks conservation. To investigate independent folding and function, two chimeric CV-B3 strains were created by exchanging …

2014-July-21-1/2 Pogil Workshop Etsu.Edu /News/2014/07_Jul/Pogilconferencepr.Php, University Marketing And Communications, East Tennessee State University

ETSU News

No abstract provided.

Genome-Wide Determination Of Poly(A) Sites In Medicago Truncatula: Evolutionary Conservation Of Alternative Poly(A) Site Choice, Xiaohui Wu, Bobby Gaffney, Arthur G. Hunt, Qingshun Q. Li

Plant and Soil Sciences Faculty Publications

BACKGROUND: Alternative polyadenylation (APA) plays an important role in the post-transcriptional regulation of gene expression. Little is known about how APA sites may evolve in homologous genes in different plant species. To this end, comparative studies of APA sites in different organisms are needed. In this study, a collection of poly(A) sites in Medicago truncatula, a model system for legume plants, has been generated and compared with APA sites in Arabidopsis thaliana.

RESULTS: The poly(A) tags from a deep-sequencing protocol were mapped to the annotated M. truncatula genome, and the identified poly(A) sites used to update the annotations of 14,203 …

Estimating Sampling Effort For Early Detection Of Non-Indigenous Benthic Species In The Toledo Harbor Region Of Lake Erie, Jeffrey L. Ram, Fady Banno, Richard R. Gala, Jason P. Gizicki, Donna R. Kashian

Environmental Science and Geology Faculty Research Publications

Toledo Harbor (Maumee River and Maumee Bay) is a “port of concern” for introduction of non-indigenous species into the Great Lakes due to the large amounts of ballast water from outside the Great Lakes discharged at the port, the amenable habitat for many potential invasives, and the large amount of ballast water transported from Toledo to other Great Lakes ports, making Toledo a potential source of invasives throughout the entire region. To estimate sampling intensity needed to detect rare or new non-indigenous species, 27 benthic grab samples from 13 locations near Toledo Harbor were collected during autumn, 2010. Benthic organisms …

Selection On Crop-Derived Traits And Qtl In Sunflower (Helianthus Annuus) Crop-Wild Hybrids Under Water Stress, Birkin R. Owart, Jonathan Corbi, John M. Burke, Jennifer M. Dechaine

All Faculty Scholarship for the College of the Sciences

Locally relevant conditions, such as water stress in irrigated agricultural regions, should be considered when assessing the risk of crop allele introgression into wild populations following hybridization. Although research in cultivars has suggested that domestication traits may reduce fecundity under water stress as compared to wild-like phenotypes, this has not been investigated in crop-wild hybrids. In this study, we examine phenotypic selection acting on, as well as the genetic architecture of vegetative, reproductive, and physiological characteristics in an experimental population of sunflower crop-wild hybrids grown under wild-like low water conditions. Crop-derived petiole length and head diameter were favored in low …

Bjc Today

BJC Today

No abstract provided.

Contrasting Leaf Shapes Vary In Extent Of Solar Tracking: Revisiting Darwin's "Service To The Plant", Kerri Mocko

Master's Theses

1. Solar tracking affects leaf temperature through the amount of direct light intercepting the lamina. However, leaf shape also affects leaf temperature due to heat transfer across boundary layers, and no studies have addressed the effect of leaf shape on solar tracking and leaf temperatures in the field.
2. We compare solar tracking, leaf temperatures, photosynthetic rates and leaf longevity in two co-occurring species with contrasting leaf morphologies: Pelargonium lobatum has a large, shallowly lobed leaf and P. triste has a highly dissected leaf composed of many small leaflets.
3. Pelargonium triste tracked the sun more closely than P. lobatum, although P. …

Documenting The Paleontological Resources Of National Park Service Areas Of The Southern California Coast And Islands, Justin S. Tweet, Vincent L. Santucci, Tim Connors

Monographs of the Western North American Naturalist

Paleontological resource inventories for the parks of the National Park Service’s Mediterranean Coast Inventory and Monitoring Network (MEDN) indicate a significant Late Cretaceous and Cenozoic fossil record for the southern California coast and islands. These inventories document over 100 million years of biologic and geologic changes along the Pacific coast of southern California. During 2012, comprehensive paleontological resource data were compiled for Cabrillo National Monument (CABR), Channel Islands National Park (CHIS), and Santa Monica Mountains National Recreation Area (SAMO). This recent work expands the paleontological resource data previously compiled for each of the parks in 2003 and during the SAMO …

Prehistoric Occupation Of The Interior Of Western Santa Cruz Island, Michael A. Glassow

Monographs of the Western North American Naturalist

Although the majority of prehistoric habitation sites on Santa Cruz Island are located within interior areas more than 0.5 km from the coast, little is known about these sites and how their occupation articulated with coastal settlement. To address this lack of knowledge, small-scale excavation was undertaken at 2 interior habitation sites (CASCRI-555 and CA-SCRI-574) in the western sector of the island. Habitation deposits at both sites are <60 cm deep. Radiocarbon dating reveals that CA-SCRI-555 experienced occupation during 3 time intervals: 1800–1400 cal BC, ~2400 cal BC, and ~4400 cal BC. In contrast, dates for CA-SCRI-574 indicate only one time interval: 2800–1900 cal BC. Remains of marine shellfish and vertebrates in the deposits indicate transport of marine foods to both sites. The repertoire of shellfish remains implies that site inhabitants obtained marine foods from coastal areas closest to each site. These interior sites may have been occupied for one or more reasons: (1) as habitation sites occupied occasionally for the purpose of acquiring and perhaps consuming plant food or other interior resources; (2) as easily defended locations given their placement on ridgetops; (3) as way stations during travel to distant parts of the island; and (4) as locations where freshwater is available during dry seasons or years when water is scare at nearby coastal locations. The data resulting from small-scale testing makes evaluating these alternatives difficult, but the variety of food remains, the various types of stone tools, and the wood charcoal from hearth fires all indicate that at least some intervals of occupation were for periods that exceeded a few days. The results highlight the need for data from a large number of interior sites to understand island settlement patterns and ecological adaptation of the island’s prehistoric inhabitants.


Aunque la mayor parte de los sitos habitacionales prehistóricos de la Isla Santa Cruz están ubicados en áreas interiores a más de 0.5 km de la costa, poco se sabe sobre estos …

Uncovering Ed: A Qualitative Analysis Of Personal Blogs Managed By Individuals With Eating Disorders, Jacqueline Gies, Sara Martino

The Qualitative Report

Previous studies have investigated the potential harmful effects of pro-eating disorder (ED) websites. Websites, such as personal blogs, may contain eating disorder content that may hold important information as well and must be considered. Fifteen blogs hosted by the site “Tumblr” were qualitatively analyzed. Each blog owner was anonymous and all were female. Ten main themes were extracted using grounded theory: interaction, negative self-worth, mind and body disturbances, pictures, eating disorders, suicide, diet, exercise, stats, and recovery. Additional themes also appeared in the study. Results indicate that although each individual blog is unique to its owner, common concepts existed among …

Hunter-Gatherer Inter-Band Interaction Rates: Implications For Cumulative Culture, Kim R. Hill, Brian M. Wood, Jacopo A. Baggio, A. Magdalena Hurtado, Robert T. Boyd

Environment and Society Faculty Publications

Our species exhibits spectacular success due to cumulative culture. While cognitive evolution of social learning mechanisms may be partially responsible for adaptive human culture, features of early human social structure may also play a role by increasing the number potential models from which to learn innovations. We present interview data on interactions between same-sex adult dyads of Ache and Hadza hunter-gatherers living in multiple distinct residential bands (20 Ache bands; 42 Hadza bands; 1201 dyads) throughout a tribal home range. Results show high probabilities (5%–29% per year) of cultural and cooperative interactions between randomly chosen adults. Multiple regression suggests that …

Accuracy Of /T/ Productions In Children With Cochlear Implants As Compared To Normal-Hearing, Articulation Age-Matched Peers, Terry Gier

USF Tampa Graduate Theses and Dissertations

Children who receive cochlear implants (CIs) demonstrate considerable variability in speech sound production. Investigations focused on speech sound development in children with CIs have shown initial accelerated growth, followed by a plateau where consonant order of acquisition generally mirrors that of NH children, but is slower (Blamey, Barry, & Pascale, 2001; Serry & Blamey, 1999; Spencer & Guo, 2013). A notable exception to this pattern, /t/, has been shown to be acquired later-than normal in several investigations (Blamey et al., 2001; Chin, 2003; Ertmer, True Kloiber, Jongmin, Connell Kirleis, & Bradford, 2012). The primary purpose of this investigation was to …

On The Inside Looking In: Methodological Insights And Challenges In Conducting Qualitative Insider Research, Melanie J. Greene

The Qualitative Report

As qualitative researchers, what stories we are told, how they are relayed to us, and the narratives that we form and share with others are inevitably influenced by our position and experiences as a researcher in relation to our participants. This is particularly true for insider research, which is concerned with the study of one’s own social group or society. This paper explores some of the possible methodological insights and challenges that may arise from insider research, and suggests several techniques and tools that may be utilized to aid in, rather than hinder, the process of the telling and sharing …

Late Stages Of Hematopoiesis And B Cell Lymphopoiesis Are Regulated By Α-Synuclein, A Key Player In Parkinson's Disease, Wenbin Xiao, Afshin Shameli, Clifford V. Harding, Howard J. Meyerson, Robert W. Maitta

Faculty Scholarship

α-Synuclein plays a crucial role in Parkinson's disease and dementias defined as synucleinopathies. α-Synuclein is expressed in hematopoietic and immune cells, but its functions in hematopoiesis and immune responses are unknown. We utilized α-synuclein(-/-) (KO) mice to investigate its role in hematopoiesis and B cell lymphopoiesis. We demonstrated hematologic abnormalities including mild anemia, smaller platelets, lymphopenia but relatively normal early hematopoiesis in KO mice compared to wild-type (WT) as measured in hematopoietic stem cells and progenitors of the different cell lineages. However, the absolute number of B220(+)IgM(+) B cells in bone marrow was reduced by 4-fold in KO mice (WT: …

Online Course Attrition In Arkansas' Two-Year Colleges, Jerry Anthony Hunnicutt

Electronic Theses and Dissertations Archive

This study investigates the attrition in online courses at two-year colleges in the state of Arkansas. For the purpose of this study, the Survey of Barriers for Online Learning was disseminated to a sample of 283 students from four 2-year colleges in the central area of Arkansas during 2013. Three research questions were the driving catalyst for the study. First, what are the perceptions of students regarding the pedagogical, managerial, social, and technical barriers to online learning? Second, do all student respondents and respondent subgroups perceive the four kinds of barriers to online learning (pedagogical, managerial, social, and technical) to …

A Feedback Loop Links Brownification To Anoxia In A Temperate, Shallow Lake, Soren Brothers, J. Kohler, K. Attermeyer, H. P. Grossart, T. Mehner, N. Meyer, K. Scharnweber, S. Hilt

Watershed Sciences Faculty Publications

This study examines a natural, rapid, fivefold increase in dissolved organic carbon (DOC) concentrations in a temperate shallow lake, describing the processes by which increased DOC resulted in anoxic conditions and altered existing carbon cycling pathways. High precipitation for two consecutive years led to rising water levels and the flooding of adjacent degraded peatlands. Leaching from the flooded soils provided an initial increase in DOC concentrations (from a 2010 mean of 12 ± 1 mg L−1 to a maximum concentration of 53 mg L−1 by June 2012). Increasing water levels, DOC, and phytoplankton concentrations reduced light reaching the sediment surface, …