Digital Commons Network^™

St. Petersburg Science Festival Returning To Usf St. Petersburg, October 11, 2013, Tom Scherberger

USF St. Petersburg Campus News and Press Releases

No abstract provided.

A Framework To Evaluate Wildlife Feeding In Research, Wildlife Management, Tourism And Recreation, Sara Dubois, David Fraser

Wildlife Population Management Collection

Feeding of wildlife occurs in the context of research, wildlife management, tourism and in opportunistic ways. A review of examples shows that although feeding is often motivated by good intentions, it can lead to problems of public safety and conservation and be detrimental to the welfare of the animals. Examples from British Columbia illustrate the problems (nuisance animal activity, public safety risk) and consequences (culling, translocation) that often arise from uncontrolled feeding. Three features of wildlife feeding can be distinguished: the feasibility of control, the effects on conservation and the effects on animal welfare. An evaluative framework incorporating these three …

Minton, Stella (Phelps), 1892-1986, Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid and full-text (click on "Additional Files") for Manuscripts Small Collection 2773. Commemorative material about Butler County, Kentucky native Stella (Phleps) Minton, which includes remembrances by relatives and excerpts from Stella’s letters to her daughter, Elizabeth “Betty” Allen (Minton) Upton. Much of this material was included in a book titled Memory is a Wonderful Thing: The Life and Letters of Stella Minton by Larry Upton and Judy McDonald and presented at the Upton Family Reunion, Phoenix, Arizona, 27-28 September 2013. Includes commemorative bookmark from the reunion.

V. 81, Issue 5, October 11, 2013

Archway (1946-2020)

No abstract provided.

Involvement Of Reactive Oxygen Species In A Feed-Forward Mechanism Of Na/K-Atpase Mediated Signaling, Yanling Yan, Anna P. Shapiro, Steven Haller, Vinal Katragadda, Lijun Liu, Jiang Tian, Venkatesha Basrur, Deepak Malhotra, Zi-Jian Xie, Nader G. Abraham, Joseph I. Shapiro Md, Jiang Liu

Biochemistry and Microbiology

Cardiotonic steroids (such as ouabain) signaling through Na/K-ATPase regulate sodium reabsorption in the renal proximal tubule. We report here that reactive oxygen species are required to initiate ouabain-stimulated Na/K-ATPase·c-Src signaling. Pretreatment with the antioxidant N-acetyl-L-cysteine prevented ouabain-stimulated Na/K-ATPase·c-Src signaling, protein carbonylation, redistribution of Na/K-ATPase and sodium/proton exchanger isoform 3, and inhibition of active transepithelial ²²Na⁺ transport. Disruption of the Na/K-ATPase·c-Src signaling complex attenuated ouabain-stimulated protein carbonylation. Ouabain-stimulated protein carbonylation is reversed after removal of ouabain, and this reversibility is largely independent of de novo protein synthesis and degradation by either the lysosome or the proteasome pathways. Furthermore, …

Recruitment Of Tlr Adapter Trif To Tlr4 Signaling Complex Is Mediated By The Second Helical Region Of Trif Tir Domain, Wenji Piao, Lisa W. Ru, Kurt H. Piepenbrink, Eric J. Sundberg, Stefanie N. Vogel, Vladimir Y. Toshchakov

Food for Health: Publications

Toll/IL-1R resistance (TIR) domain–containing adapter-inducing IFN-β (TRIF) is a Toll-like receptor (TLR) adapter that mediates MyD88-independent induction of type I interferons through activation of IFN regulatory factor 3 and NFκB. We have examined peptides derived from the TRIF TIR domain for ability to inhibit TLR4. In addition to a previously identified BB loop peptide (TF4), a peptide derived from putative helix B of TRIF TIR (TF5) strongly inhibits LPS-induced cytokine and MAPK activation in wild-type cells. TF5 failed to inhibit LPS-induced cytokine and kinase activation in TRIF-deficient immortalized bone-marrow–derived macrophage, but was fully inhibitory in MyD88 knockout cells. TF5 does …

The Bison, October 11, 2013

The Bison Newspapers

No abstract provided.

The Daily Gamecock, Friday, October 11, 2013, University Of South Carolina, Office Of Student Media

October

No abstract provided.

October 11, 2013 - Alec Department Meeting Minutes

ALEC Committee Minutes

No abstract provided.

Uab Gets $9.7 Million To Find Treatments For Deadly Lung Disease Pulmonary Fibrosis, Alicia Rohan

Browse All News

No abstract provided.

Sequencing The Mammoth Cytochrome B Gene: A Genetic Look Into The History Of Prehistoric Columbian Mammoths, Shaun Odell, Dr. Scott Woodward

Journal of Undergraduate Research

During the excavation process associated with the reconstruction of Cleveland reservoir dam near the Huntington Canyon area of UT, the massive skeleton of a Columbian mammoth was unearthed. Excavation of the remains ensued, and bone samples from this prehistoric mammal were sent to the Molecular Archaeogenetic Research facility at Brigham Young University. These samples were studied in hopes of unlocking many of the mysteries associated with this ancient animal.

Can A Flea See? An Investigation Of Flea Opsin (Flopsin), Sean David Taylor, Dr. Michael F. Whiting

Journal of Undergraduate Research

Visual pigments are responsible for conferring visual perceptual abilities to animals. Various pigments are tuned to absorb light of different wavelengths and to provide contrast and movement perception. All pigments consist of an opsin protein and a chromophore molecule, usually a carotene derivative. Interactions between the chromophore and amino acid residues of opsin fine-tune visual pigments for the absorption of different wavelengths. Opsin variants can tune visual pigments to absorb wavelengths in the ultraviolet, blue, green, and red regions of the spectrum (Briscoe and Chittka 2001).

Testing Cognition In Amazona Spp, Heidi Francis, Dr. Steven L. Peck

Journal of Undergraduate Research

Animal intelligence has been studied for years, yet very few people are aware that parrots are ranked near the top with regards to cognition. For almost 20 years Dr. Irene Pepperberg has been teaching African Grey parrots to communicate using language, these birds then use English words to verbally answer questions testing their intelligence level. (Pepperberg, 1995) The teaching method used to do this is called the Model/Rival technique. For my research I chose to test whether this same technique could be used to teach a different species of parrot. Because of their speaking ability and large brain sizes comparable …

Analysis Of Hnf1-Beta As A Possible Regulatory Protein For The Transcription Of The Col11a2 Collagen Gene, Nicholas M. Orme, Dr. Laura C. Bridgewater

Journal of Undergraduate Research

Cartilage is a highly specialized form of connective tissue that functions as a template for most skeletal structures and aids in supporting the tension and pressure common to most animal joint function. Abnormal cartilage formation often results from defective collagen DNA and can lead to several skeletal diseases including dwarfism, cleft palate and osteoarthritis. The purpose of this research was to investigate the regulatory role of HNF proteins in the transcription of the Col11a2 gene which codes for a collagen protein found in cartilage.

Investigation Into The Mechanisms Associated With Angiogenesis And Metastasis, Rachelle R. Olsen, Dr. Kim L. O'Neill

Journal of Undergraduate Research

Angiogenesis, the development and differentiation of new blood vessels from pre-existing vasculature, is tightly controlled during physiological processes including wound healing, growth, and development. Angiogenesis is also associated with several human malignancies including arthritis, psoriasis, and cancer. Angiogenesis, which provides a source of nutrients and a waste outlet for biological products, is absolutely required for a tumor to grow larger than a few millimeters in size. Blood vessels formed by angiogenesis are young and immature and can facilitate metastasis, the spread and subsequent growth of primary tumor cells to distal body sites.

Anterior-Posterior Limb Position Is Dependent On The Relative Timing Of Key Embryonic Events, Tyler Prestwich, Dr. Michael Stark

Journal of Undergraduate Research

To better understand embryonic events leading to the determination of limb position along the anterior-posterior (A-P) axis, we compared pre-limb bud stage developmental morphology of three vertebrate organisms: chicken, goose and swan. These organisms were selected because of the differences each exhibit with regard to the A-P location of the forelimbs, or more specifically, the number of cervical vertebrae. By observing disparities between the embryonic morphologies of the different species, we were able to identify specific morphological distinctions that correlate with A-P patterning. Based on the data obtained, we hypothesize a mechanism whereby a delay in embryonic “differentiation” in relationship …

A Col2a1 Mutation Leads To Increased Degradation Of Type Ii Collagen In Articular Cartilage: A Murine Model For Osteoarthritis, Peter Crane, Dr. Robert Seegmiller

Journal of Undergraduate Research

Normal articular cartilage is characterized by a resilient collagen and proteoglycan matrix interdispersed with chondrocytes. Collagen type II is the most abundant collagen found in the matrix and is responsible for providing tensile strength to the tissue. The highly conserved Col2a1 gene is responsible for coding all type II collagen á-helix chains.1 The process of enzymatic MMP cleavage is a natural part of collagen recycling, but has been observed to be upregulated in articular cartilage of osteoarthritis (OA) patients. It is hypothesized that further denaturation (unwinding) of enzymatically cleaved collagen takes place following enzymatic cleavage by MMP. Because increased degraded …

Soil Resources Of The Ancient Maya In The Petexbatún Region Of Guatemala, Delineated By Soil Properties And Stable Isotopes, David R. Wright, Dr. Richard E. Terry

Journal of Undergraduate Research

The Maya culture of Mesoamerica has always been shrouded in mystery, much of which surrounds its tremendous rise and (yet) unexplained fall. The Maya managed to sustain enormous populations in an environmentally fragile setting. Like all cultures throughout history, the Maya culture prospered from the soils beneath it. Despite extensive excavation and investigation of Maya sites, relatively little is understood of the agricultural methods that led to such successful subsistence. Understanding is deficient because cultivated areas tend to leave few visible remains besides an occasional terrace or canal, and also because traditionally most investigative efforts have focused on elite structures …

Integrating Technology In Guatemalan Schools, Richard Culatta, Dr. Charles Graham

Journal of Undergraduate Research

With an increase in donations and grants available for technology integration, even schools in remote areas of the world have greater access to technology than ever before. However, as the experience in integrating technology in the United States has shown, the availability of technology doesn’t always equate to it’s effective pedagogical application. Nevertheless, there has been little research concerning the successful process of integrating technology into education in areas of the world that have not had significant previous contact with technology. The purpose of this study is to identify problems and perceptions of teachers in developing countries as they begin …

Inferring The Relative Resilience Of Alternative States, David G. Angeler, Craig R. Allen, Carmen Rojo, Miguel Alvarez-Cobelas, Salvador Sánchez-Carrillo

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Ecological systems may occur in alternative states that differ in ecological structures, functions and processes. Resilience is the measure of disturbance an ecological system can absorb before changing states. However, how the intrinsic structures and processes of systems that characterize their states affects their resilience remains unclear. We analyzed time series of phytoplankton communities at three sites in a floodplain in central Spain to assess the dominant frequencies or “temporal scales” in community dynamics and compared the patterns between a wet and a dry alternative state. The identified frequencies and cross-scale structures are expected to arise from positive feedbacks that …

Growth Of Tropical Dasyatid Rays Estimated Using A Multi-Analytical Approach, Owen R. O'Shea, Matias Braccini, Rory Mcauley, Conrad W. Speed, Mark G. Meekan

Fisheries Research Articles

We studied the age and growth of four sympatric stingrays: reticulate whipray, Himanutra uarnak (n=19); blue mask, Neotrygon kuhlii (n=34); cowtail, Pastinachus atrus (n=32) and blue-spotted fantail, Taeniura lymma (n=40) rays at Ningaloo Reef, a fringing coral reef on the north-western coast of western Australia. Age estimates derived from band counts within sectioned vertebrae ranged between 1 and 27 years (H. uarnak, 1 - 25 yrs.; N. kuhlii, 1.5 - 13 yrs.; P. atrus, 1 - 27 yrs. and T. lymma, 1 -11 yrs.). Due to limitations of sample sizes, we combined several analytical methods …

The New Hampshire, Vol. 103 [104], No. 10 (Oct. 11, 2013), The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire. This volume was printed as 103, but it is the 104th volume in the series. This was corrected in pencil.

The Parthenon, October 11, 2013, Bishop Nash

The Parthenon

The Parthenon, Marshall University’s student newspaper, is published by students Monday through Friday during the regular semester and weekly Thursday during the summer. The editorial staff is responsible for the news and the editorial content.

The Use Of Stable Isotopes To Determine The Physiology And Ecology Of Reptiles, Jessica Makin, Kent Hatch

Journal of Undergraduate Research

Stable isotope research is becoming more widely used in physiological ecology. Atoms of the same atomic number but different atomic weights are called isotopes. Nitrogen (N) has two isotopes, 14N and 15N, with the latter being the heavier isotope. The assumption is that 14N is excreted at a higher rate than 15N. It is also thought that this should cause an increase in 15N of the protein tissues and preferential excretion of 14N of an animal when the animal is in the process of breaking down proteins.

Combination Of Necroptosis And Apoptosis Inhibition Enhances Cardioprotection Against Myocardial Ischemia-Reperfusion Injury., Shizuka Koshinuma, Masami Miyamae, Kazuhiro Kaneda, Junichiro Kotani, Vincent M. Figueredo

Division of Cardiology Faculty Papers

PURPOSE: Necroptosis has been proposed as a mode of cell death that is a caspase-independent programmed necrosis. We investigated whether necroptosis is involved in myocardial ischemia-reperfusion injury in isolated guinea pig hearts and, if so, whether simultaneous inhibition of necroptosis and apoptosis confers enhanced cardioprotection.

METHODS: Isolated perfused guinea pig hearts were subjected to 30 min ischemia and 4 h reperfusion (control = CTL, n = 8). Necrostatin-1 (necroptosis inhibitor, 10 μM), Z-VAD (apoptosis inhibitor, 0.1 μM) and both inhibitors were administered starting 5 min before ischemia and during the initial 30 min of reperfusion (Nec, Z-VAD, Nec + Z-VAD; …

Sustainability Of Expansion In An African Airline: A Case Study, Sisay Asefa, Allen Batteau, Lisa Whittaker, Hung-Sying Jing

International Journal of African Development

Ethiopian Air Lines (Ethiopian) has committed to the purchase of 41 new aircraft, nearly doubling their fleet and introducing three new, state-of-the-art types (the A350-900 and the 787-8, and the DA40NG) into a fleet currently consisting of seven models. In a logistically complex industry, this represents a substantial increase in resource commitments and management responsibility in many areas including maintenance, pilot training, facilities, and route planning. The purpose of this paper is to examine this growth strategy, its underlying assumptions, and its sustainability given long-range industry trends in both the developed and the developing world. Using corporate and industry data, …

Solving Large Problems With A Small Working Memory, Zygmunt Pizlo, Emil Stefanov

The Journal of Problem Solving

We describe an important elaboration of our multiscale/multiresolution model for solving the Traveling Salesman Problem (TSP). Our previous model emulated the non-uniform distribution of receptors on the human retina and the shifts of visual attention. This model produced near-optimal solutions of TSP in linear time by performing hierarchical clustering followed by a sequence of coarse-to-fine approximations of the tour. Linear time complexity was related to the minimal amount of search performed by the model, which posed minimal requirements on the size of the working memory. The new model implements the small working memory requirement. The model only stores information about …

Human Problem Solving In 2012, Joachim Funke

The Journal of Problem Solving

This paper presents a bibliography of 263 references related to human problem solving, arranged by subject matter. The references were taken from PsycInfo and Academic Premier database. Journal papers, book chapters, and dissertations are included. The topics include human development, education, neuroscience, and research in applied settings. It is argued that researchers are more and more engaged with problem solving research because of its centrality in human actions and because society needs advice from science in understanding and solving complex problems.

Can We Graze 300+ Days?, Glen Aiken

Kentucky Grazing Conference

Dependence on stored feeds during the winter months has been necessary in order to maintain body condition and meet nutrient requirements of cattle herds; unfortunately, cost of stored feeds typically are a major part of the farm budget. We know, all too well, that hay shortages and unstable feed ingredient markets have reduced profit potential in cattle production. This has further placed higher demands on supplies of co-product feeds to cause prices of these alternative feeds to rise and make them less cost effective. There will likely be less reliance on concentrate and co-product feeds as the forage-based livestock industry …

Pastures For Horses, Robert Coleman

Kentucky Grazing Conference

The horse evolved as a grazing animal. In order to consume enough forage to meet the horses’ nutritional needs a significant amount of time would be spent each day grazing. The pattern of selecting forage-moving to the next area starting to graze again can easily translate into 14 to 16 hours of grazing activity each day. The level of grazing activity will also be affected by the available forage and the daily access to pasture.