Digital Commons Network^™

Electrocardiograms Of Bottlenose Dolphins (Tursiops Truncatus) Out Of Water: Habituated Collection Versus Wild Postcapture Animals, Craig A. Harms, Eric D. Jensen, Forrest I. Townsend, Larry J. Hansen, Lori H. Schwacke, Teresa K. Rowles

United States Department of Commerce: Staff Publications

Electrocardiography (ECG) was performed on captured free-ranging bottlenose dolphins (Tursiops truncatus) during a health assessment exercise and compared with that of a Navy collection of dolphins habituated to handling out of water in order to assess possible cardiovascular impacts of capture and handling. Six-lead recordings (I, II, III, aVr, aVl, and aVf) in the frontal plane and direct thorax leads were collected from both groups, with a modified base-apex lead additionally employed with the Navy collection dolphins. Measured and calculated parameters included amplitudes of P, R, S, and T waves and total QRS complex; T:S and T:QRS ratios; …

Biodiesel Transesterification Byproducts As Soil Amendments, Solomon Parker

Graduate Theses and Dissertations

For every ten kilograms of biodiesel that is produced from the transesterification of vegetable oil, approximately 1 kg of glycerol is produced as a byproduct. Also known as glycerin, it is a chemical used in many products including cosmetics, foods, and desiccants. However, the crude glycerol created during biodiesel production is tainted with potassium hydroxide and methanol making it unsuitable for commercial use without costly refinement. With increase in production of biodiesel driven by rising fuel prices, the market has become glutted with glycerol and it is on the threshold of becoming a waste product. Common methods for disposing glycerol …

Modeling Greenhouse Gas Emissions And Net Return Implications For Cow-Calf Producers In The Ozark Highlands, Stephen Aaron Smith

Graduate Theses and Dissertations

Cow-calf producers in the Ozark Highlands region are under continuous pressure to improve economic efficiency. Additionally, estimating greenhouse gas (GHG) emissions from cow-calf and forage production processes may become increasingly important as policy makers seek to mitigate or reduce agriculture's role in climate change. As such, this analysis had three objectives. Objective 1: Provide a model that could be used by cow-calf producers, extension agents, and researchers to evaluate GHG and net return (NR) repercussions when modifying site characteristics, production methods, and inputs. Objective 2: Develop a user guide such that the methodology for estimating cow-calf GHG emissions and NR …

Using The Ceres-Maize Model To Create A Geographically Explicit Grid Based Estimate Of Corn Yield Under Climate Change Scenarios, Ryan Zachary Johnston

Graduate Theses and Dissertations

The CERES-Maize model was evaluated in its capacity to predict both regional maize yield and water use within the United States Department of Agriculture (USDA) Economic Research Service (ERS) Region 1 between the years 1997-2007. A grid based, geospatially explicit method was developed to express the various rainfed and irrigated maize cultivars grown across the region. Overall, the calibrated model compared well for both physiological and yield parameters, producing significant linear relationships (p

The calibrated and validated CERES-Maize model was used to predict potential evapotranspiration and yield under three IPCC weather scenarios for the year 2050 to evaluate crop production …

Initial Fine Mapping Of The Spinach Downy Mildew Resistance Locus Rpf1, Wei Yang

Graduate Theses and Dissertations

Spinach is an important vegetable crop grown in many parts of the world (Correll et al. 2011). It has become increasingly popular due to its nutritional value as it is very high in antioxidants (Prior, 2003). Spinach production, however, is affected by many biotic stresses. Downy mildew, caused by Peronospora farinosa f. sp. spinaciae (Pfs) , is perhaps the most important biotic constraint for spinach production worldwide (Correll et al, 1994). As of 2012, 14 races of Pfs have been reported (Correll et al., 2011). The rapid increase of new races is likely a direct result of substantial changes in …

Morphological And Molecular Taxonomic Identification And Phylogenetics Of Criconematoidea, Marco Cordero

Graduate Theses and Dissertations

The superfamily Criconematoidea has been studied since 1886. It is composed of two families: Criconematidae (subfam. Criconematinae, Hemicycliophorinae) and Tylenchulidae (subfam. Tylenchulinae, Paratylenchinae and Tylenchocriconematinae). Multiple species in genera have been identified and differences and similarities have been found. Species belonging to genera Mesocriconema and Criconemoides show very few differences making their identification difficult. Seventy two populations were studied. They were collected in Arkansas and/or received from the following states: California, Florida, Kansas, Missouri, North Carolina and Tennessee. Populations of the following species were identified: Mesocriconema curvatum, M. kirjanovae, M. onoense, M. ornatum, M. sphaerocephala, M. surinamense, M. vadense, M. …

Tethered, Samantha Jean Dixon

Graduate Theses and Dissertations

Tethered addresses the innate fear of forgetting where an individual's family originates, both physically and historically. Not long after discovering that part of my family was almost completely annihilated during the Holocaust, I produced Tethered as visual documentation of the long-term effects of families of survivors. The exhibition is also influenced by my grandmother's experiences as a Mauthausen concentration camp survivor and my own experiences being raised by a survivor.

The knowledge of the imminent loss of memory initiates an instinct to repetitively record and remember personal history. Numerous memories have been forcefully buried in the darkest recesses of the …

Cycle, Nichole Annette Howard

Graduate Theses and Dissertations

Cycle is the exhibition of a year-long project that experiments with growing food and medicinal herbs. Alongside an exploration of plant growth, I transfer iconic cultural objects of daily life from plastic to ceramics. Using material culture as a physical and conceptual platform, this re-contextualization of objects offers a radically different view of use and meaning. I transform the soda-filled, plastic Big Gulp cup into a terra planter filled with new life.

My working method involves making molds of Big Gulp plastic cups and transferring the form into a traditional plant growing material, terra cotta. I then germinate seeds inside …

A Scan Of The Horizon Indicates Conservation Is Changing, But Are Conservation-Related Societies?, Stephen L. Young

West Central Research and Extension Center, North Platte

In societies, organizations, and institutions, we often look backwards to understand the way forward. While this can be important, it can also be detrimental if done too often or becomes an over-relied upon practice. At major international car shows, companies display the make and model for those cars that have done well in the past, but the biggest attraction is the cars of the future (figure 1). At the biggest agricultural trade shows in the country, the equipment that has the biggest audience is the newest or most futuristic (figure 2). When we want to develop new collaborations, do we …

The Role Of Protonation States In Ligand-Receptor Recognition And Binding, Marharyta Petukh, Shannon Stefl, Emil Alexov

Publications

In this review we discuss the role of protonation states in receptor-ligand interactions, providing experimental evidences and computational predictions that complex formation may involve titratable groups with unusual pKa’s and that protonation states frequently change from unbound to bound states. These protonation changes result in proton uptake/release, which in turn causes the pHdependence of the binding. Indeed, experimental data strongly suggest that almost any binding is pH-dependent and to be correctly modeled, the protonation states must be properly assigned prior to and after the binding. One may accurately predict the protonation states when provided with the structures of the unbound …

Behavioral, Biochemical, And Molecular Indices Of Stress Are Enhanced In Female Versus Male Rats Experiencing Nicotine Withdrawal, Laura O'Dell

Departmental Papers (Psych)

Stress is a major factor that promotes tobacco use and relapse during withdrawal. Although women are more vulnerable to tobacco use than men, the manner in which stress contributes to tobacco use in women versus men is unclear.Thus, the goal of this study was to compare behavioral and biological indices of stress in male and female rats during nicotine withdrawal. Since the effects of nicotine withdrawal are age-dependent, this study also included adolescent rats. An initial study was conducted to provide comparable nicotine doses across age and sex during nicotine exposure and withdrawal. Rats received sham surgery or an osmotic …

Sensory Integration And Negative Behaviors, Lindsay Clifford

Education Masters

No abstract provided.

The Effects Of Chronic Cadmium Exposure On Breast Cancer Progression, Esmeralda Ponce

Dissertations, Masters Theses, Capstones, and Culminating Projects

Cadmium is an environmental contaminant that enters the body usually through diet or cigarette smoke. Exposure to cadmium has been associated with the development of breast cancer. Recent studies have suggested that cadmium functions as an endocrine disruptor and mimics the actions of estrogen in breast cancer cells by activating the receptor (ER) to promote breast cancer cell growth. Although acute cadmium exposure is known to promote estrogen receptor-mediated gene expression associated with growth, the consequence of chronic cadmium exposure has been unclear. Since heavy metals are known to bioaccumulate, it is necessary to understand and elucidate the effects of …

Imagining Jazzocracy: Notes Toward A New Democratic Subject, Mario Tofano

Dissertations, Masters Theses, Capstones, and Culminating Projects

What does participatory democracy look like? This essay finds an answer in the indigenous art form of the United States—jazz. Political engagement in America must learn from the jazz aesthetic which realizes the communal projects of individuals in concert. After a brief survey of the biological, historical, and cultural formations that construct our political environment this essay advances equaliberty as the foundational concept for the Jazzocrat, the new political subject for tomorrow’s participatory democracy.

Biophysical Studies Of Styrene-Maleic Acid Copolymer Stabilized Membrane Mimetics, Diane Yu

University Scholar Projects

Traditional methods of isolating membrane proteins involve the use of detergents that destabilize the membrane environment. Biophysical studies of membrane proteins are challenged by the requirement of a stable membrane platform. Lipodisq® nanoparticles are novel membrane mimetics that consist of 3:1 styrene-maleic acid copolymer encircling phospholipids to form discoidal species on the order of 10 nm in diameter. Bacteriorhodopsin was previously incorporated into Lipodisq® nano-particles from its native purple membrane without the addition of detergent. In this study, dynamic light scattering was used to investigate the stability of empty Lipodisq® nano-particles over time. These data show that Lipodisq® nano-particles are …

The Effects Of Aging And Injury On The Murine Ependymal Barrier And Subventricular Zone, John Jeffrey Peters

University Scholar Projects

Previous research has shown that numerous age-related changes occur in the subventricular zone (SVZ) and diminish the neurogenic output of the region. Here, various agerelated changes in the structure of the lateral ventricle, the ependymal barrier, and the SVZ were examined. It was found that the walls of the lateral ventricles move together, adhere, and eventually fuse. This results in a degradation of the SVZ. Other changes associated with aging were found, including ependymal cell stretching, heightened, ependymal repair, changes in CSF flow velocity and dynamics, and altered ependymal cell polarity. These changes may be related to the process of …

Utah State University Commencement, 2013 – Main Campus, Utah State University

Commencement Programs

126^th Annual Commencement of Utah State University.

Engaging Students In A Bioinformatics Activity To Introduce Gene Structure And Function, Barbara J. May

Biology Faculty Publications

Bioinformatics spans many fields of biological research and plays a vital role in mining and analyzing data. Therefore, there is an ever-increasing need for students to understand not only what can be learned from this data, but also how to use basic bioinformatics tools. This activity is designed to provide secondary and undergraduate biology students to a hands-on activity meant to explore and understand gene structure with the use of basic bioinformatic tools. Students are provided an “unknown” sequence from which they are asked to use a free online gene finder program to identify the gene. Students then predict the …

Clemson Commencement Program, May 2013, Clemson University

Clemson Commencement Programs

No abstract provided.

Parent Aggression And Youth Externalizing And Internalizing Behaviors: Stability And Mutual Influence, Ann L. Sheedy

Child and Family Studies - Dissertations

Parent aggression exists on a continuum with corporal punishment at one end and abuse at the other. There is still controversy as to whether any kind of parent aggression toward an adolescent contributes to externalizing and internalizing behaviors. Relative to what is known about parent aggression during childhood, much less is known about parent aggression toward adolescents from a systemic and developmental perspective. This study explored the stability and mutual influence of parent aggression and adolescent externalizing and internalizing behaviors. The study found that the constructs were stable over time, and that with this sample population, parental physical and emotional …

Socio-Cultural Influences On Adolescent Smoking In Mainland China: The Mediating Role Of Smoking-Related Cognitions, Yan Wang

Child and Family Studies - Dissertations

The etiology of smoking behaviors involves the interplay among multiple systems at the cultural, familial, and personal levels, but few investigations have explored the effects of multiple environments on adolescent smoking behaviors. Survey data were collected from 658 parent-child dyads of Chinese adolescents aged between 14 and 17 years from Jiande, Zhejiang province in mainland China. Using data from multiple informants, the direct and indirect roles of socio-cultural influences, parenting strategies, smoking-specific parenting behaviors, and smoking-related cognitions on adolescent smoking behaviors were examined. Results indicated that smoking-related cultural values, extended family members smoking, and parental psychological control had direct effects …

Effects Of Stream Restoration And Storm Events On Stream-Groundwater Interactions, Margaret Zimmer

Earth & Environmental Sciences - Theses

The body of literature on stream-groundwater interactions is rapidly growing, but little is known about the effects of either storm events or in-stream restoration on the interactions between surface water and groundwater. The chapters of this thesis explore two of these questions at the same locality of interest: (1) subsurface geochemical dynamics across a riffle bedform in an unrestored stream during a storm event and subsurface geochemical, and (2) hyporheic exchange dynamics at baseflow conditions pre- and one year post- stream restoration.

The study site was a 30 m stretch of stream that underwent stream restoration through installation of a …

Comparative Visual Function In Predatory Fishes From The Indian River Lagoon, D. Michelle Mccomb, Stephen M. Kajiura, Andrij Horodysky, Tamara M. Frank

Marine & Environmental Sciences Faculty Articles

Visual temporal resolution and spectral sensitivity of three coastal teleost species (common snook [Centropomus undecimalis], gray snapper [Lutjanus griseus], and pinfish [Lagodon rhomboides]) were investigated by electroretinogram. Temporal resolution was quantified under photopic and scotopic conditions using response waveform dynamics and maximum critical flicker fusion frequency (CFF_max). Photopic CFF_max was significantly higher than scotopic CFF_max in all species. The snapper had the shortest photoreceptor response latency time (26.7 ms) and the highest CFF_max (47 Hz), suggesting that its eyes are adapted for a brighter photic environment. In contrast, the …

Sensing Of Carboxylate Drugs In Urine By A Supramolecular Sensor Array, Yuanli Liu, Tsuyoshi Minami, Ryuhei Nishiyabu, Zhuo Wang, Pavel Anzenbacher Jr.

Chemistry Faculty Publications

A supramolecular sensor array consisting of eight chemosensors embedded in a hydrogel matrix was used to sense carboxylate drugs. The discriminatory power of the array has been evaluated using principal component analysis and linear discriminant analysis. The eight-member sensor array has been shown to accurately identify 14 carboxylates in water with 100% classification accuracy. To demonstrate the potential for practical utility in the physiological environment, analysis of carboxylate drugs in human urine was also performed achieving 100% correct classification. In addition, the array performance in semiquantitative identification of nonsteroidal anti-inflammatory drugs has been investigated, and the results show that the …

Toward A Positive Theory Of Privacy Law, Lior Strahilevitz

Articles

No abstract provided.

Trait Emotional Intelligence, Perceived Discrimination, And Academic Achievement Among African American And Latina/O High School Students: A Study Of Academic Resilience, Nick R. Abel

Scholarship and Professional Work – Education

The goal of academic resilience research is to identify factors and processes which lead to academic success among groups of students generally found to be at-risk, including those of African American and Latina/o descent. The present study investigated a possible risk factor (perceptions of discrimination), a possible protective factor (emotional intelligence), and the role of gender in predicting academic achievement (as measured by high school GPA) in a sample (N = 79) of African American and Latina/o high school students attending one high school in Minnesota. Through the use of multiple regression, neither emotional intelligence nor perceptions of discrimination was …

In Vivo Efficacy Of Chitosan/Interleukin-12 In Controlling Lung Metastasis In 4t1 Breast Cancer Model, Jimmy Vo

Biomedical Engineering Undergraduate Honors Theses

Cancer immunotherapy has emerged as a leading front in cancer treatment. In contrast to other treatment methods such as radiation and surgery, immunotherapy trains the patient's body to recognize and eliminate tumors, thus preventing reoccurrence of secondary tumors. IL-12 has been shown to display a potent anti-tumor immune response in mice; however, when clinical trials were conducted, it was shown to be toxic and in some cases fatal when administered systemically.1,2 Because of this, local delivery of IL-12 is under investigation. Our lab has shown that when paired with the polymer chitosan, local, intratumoral (i.t.) injections of IL-12 are retained …

Polypharmacy In Elderly: A Cautious Trail To Tread, Saniya Raghib Sabzwari, Waris Qidwai, Seema Bhanji

Department of Family Medicine

Polypharmacy has now increasingly come into focus as the recipient of healthcare in old age worldwide. In elderly it is associated with frequent adverse drug reactions (ADRs) and drug-drug interactions resulting in significant morbidity. Geriatrics is still an emerging specialty in South Asia, especially in Pakistan, where multiple reasons for polypharmacy exist. An extensive literature review of articles using key words like \'polypharmacy,\' \'elderly\' was conducted. The recently updated Beers Criteria of classification of inappropriate drugs in the elderly was reviewed in detail. Articles of relevance to polypharmacy and evaluation of guidelines for appropriate interventions to minimise inappropriate drug prescribing …

Bromus Tectorum Litter Alters Photosynthetic Characteristics Of Biological Soil Crusts From A Semiarid Shrubland, Marcelo D. Serpe, Eric Roberts, David J. Eldridge, Roger Rosentreter

Biology Faculty Publications and Presentations

Invasion by the exotic annual grass Bromus tectorum has increased the cover and connectivity of fine litter in the sagebrush steppes of western North America. This litter tends to cover biological soil crusts, which could affect their metabolism and growth. To investigate this possible phenomenon, biological soil crusts dominated by either the moss Bryum argenteum or the lichen Diploschistes muscorum were covered with B.tectorum litter (litter treatment) or left uncovered (control treatment) and exposed to natural field conditions. After periods of five and ten months, we removed the litter and compared the photosynthetic performance of biological soil crusts …

Bulletin Ninth District Ny May 2013

Bulletin of the Ninth District Dental Association

The Bulletin of the Ninth District Dental Association is published four times annually in the months of March, May, September and November. It is distributed to all Association members from the counties of Dutchess, Orange, Putnam, Rockland and Westchester in the state of New York.

The Bulletin keeps our members up-to-date on NDDA activities as well as on a variety of topics important to the profession.