Digital Commons Network^™

Matching Behavior As A Tradeoff Between Reward Maximization And Demands On Neural Computation, Jan Kubanek, Lawrence H. Snyder

Open Access Publications

No abstract provided.

Systemic Ep4 Inhibition Increases Adhesion Formation In A Murine Model Of Flexor Tendon Repair, Michael B. Geary, Caitlin A. Orner, Fatima Bawany, Hani A. Awad, Warren C. Hammert, Regis J. O'Keefe, Alayna E. Loiselle

Open Access Publications

No abstract provided.

On Point 2015 Winter, Longwood University

Alumni Newsletters & Bulletins

No abstract provided.

The Effect Of Fatherhood On Employment Hours: Variation By Birth Timing, Marriage And Coresidence, Matthew Weinshenker

Sociology Faculty Publications

Drawing on the life course paradigm, I assess how the effect of fatherhood on employment hours varies by age of becoming a parent and time elapsed since the birth. Using the National Longitudinal Survey of Youth – 1979 Cohort from 1979 to 2002 (N = 28,514 observations), separate effects are estimated based on fathers’ marital status and co-residence with own children. Only unmarried men who became fathers before 24 work longer hours immediately after a first birth, but in the long run, most early fathers work fewer hours as a result of parenthood. Over time, unmarried but coresident men who …

Functional Transcranial Doppler Ultrasound For High Temporal Resolution Measurement Of Lateralization In Visual Memory And Visual Search Cognitive Tasks, B. Hage, M. Alwatban, E. Barney, M. Mills, M. Dodd, E. Truemper, Gregory R. Bashford

Biomedical Imaging and Biosignal Analysis Laboratory

Functional transcranial Doppler ultrasound (fTCD) is a noninvasive sensing modality that measures blood flow velocities in cerebral arteries (CBFV) with high temporal resolution. Few studies have examined the relationship of CBFV change during visual search and visual memory cognitive tasks. Here a protocol to compare lateralization between these two similar tasks using fTCD is demonstrated. Thirteen healthy volunteers were shown visual scenes on a computer and performed visual search and visual memory tasks while CBFV in the bilateral middle cerebral arteries was monitored with fTCD. Each subject completed 40 trials, consisting of baseline, calibration, instruction, and task periods. Lateralization was …

The Myth And The Meaning Of Science As A Vocation, Adam Liska

Adam Liska Papers

Many natural scientists of the past and the present have imagined that they pursued their activity according to its own inherent rules in a realm distinctly separate from the business world, or at least in a realm where business tended to interfere with science from time to time, but was not ultimately an essential component, ‘because one thought that in science one possessed and loved something unselfish, harmless, self-sufficient, and truly innocent, in which man’s evil impulses had no part whatever’, as Nietzsche once commented (Nietzsche 1974, p.106). With the extreme technological changes that have occurred in the last fifty …

Phenotypic Diversity Of Puccinia Helianthi (Sunflower Rust) In The United States From 2011 And 2012, Andrew J. Friskop, Thomas J. Gulya, R. M. Harveson, Ryan M. Humann, Maricelis Acevedo, Samuel G. Markell

Panhandle Research and Extension Center

Puccinia helianthi, causal agent of sunflower rust, is a macrocyclic and autoecious pathogen. Widespread sexual reproduction of P. helianthi was documented in North Dakota and Nebraska for the first time in 2008 and has since frequently occurred. Concurrently, an increase in sunflower rust incidence, severity, and subsequent yield loss on sunflower has occurred since 2008. Rust can be managed with resistance genes but determination of virulence phenotypes is important for effective gene deployment and hybrid selection. However, the only P. helianthi virulence data available in the United States was generated prior to 2009 and consisted of aggregate virulence phenotypes …

Evaluation Of Rhizoctonia Zeae As A Potential Biological Control Option For Fungal Root Diseases Of Sugar Beet, K M. Webb, R. M. Harveson, M S. West

Panhandle Research and Extension Center

Several common root diseases routinely damage sugar beet in Nebraska and other production areas of the Central High Plains, and it is becoming more common to find fields infested simultaneously with multiple pathogens. Owing to the shortage of available fungicides for economic management of soilborne diseases, alternative techniques such as biological control are increasingly being sought for disease management. Over the last several years, unidentified, sterile fungi have been isolated in conjunction with pathogens from infected sugar beet roots and seedlings. At least two promising isolates have been identified from in vitro assays that inhibit the radial growth of multiple …

Physical And Biological Effects Of Modified Polysorbate 20, Kevin Penfield, Bryan Young, Julie K. Young, Greg R. Kruger, Ryan Henry, Greg Lindner

West Central Research and Extension Center, North Platte

Three experimental polyoxyethylene sorbitan monolaurate derivatives were synthesized with molecular fingerprinting techniques applied to experimental materials, confirming the target compounds had been produced. Chemical property measurements were compiled that aligned with theoretical predictions and physical property measurements confirmed their intentional differences yielded the anticipated changes in surfactant behavior. Imidacloprid uptake data confirmed penetration of leaf cuticles was enhanced in the presence of polyoxyethylene sorbitan monolaurates with several experimental materials providing uptake equivalent to reference material. Select materials were included in field and greenhouse trials where observations included good biological response with a range of individual herbicides as well as improved …

Bacterial Wilt Of Dry-Edible Beans In The Central High Plains Of The U.S.: Past, Present, And Future, Robert M. Harveson, Howard F. Schwartz, Carlos A. Urrea, C. Dean Yonts

Panhandle Research and Extension Center

Bacterial wilt, caused by Curtobacterium flaccumfaciens pv. flaccumfaciens, was first recognized and described as a new dry bean disease near Redfield, South Dakota, after the 1921 growing season on the farm of the Office of Forage Investigations. The grower on this farm informed the federal investigators that he believed the disease to be the same one that killed 90% of his crop in 1920. For the 1921 season, he saved and planted the seed harvested from the previous year, resulting in an estimated 25% loss.

. . .

It is likely that wilt has “reappeared” and become widely established throughout …

Corn Residue Stocking Rate Affects Cattle Performance But Not Subsequent Grain Yield, L. A. Stalker, Humberto Blanco-Canqui, Jennifer A. Gigax, A. L. Mcgee, T. M. Shaver, S. J. Van Donk

West Central Research and Extension Center, North Platte

This study investigated effects of stocking rate on cattle performance, quality and quantity of corn residue, and impact of residue removal on grain yield for 5 yr at the University of Nebraska – Lincoln West Central Water Resources Field Laboratory near Brule, NE. Four removal treatments—1) no removal (control), 2) grazing at 2.5 animal unit month (AUM)/ ha, 3) grazing at 5.0 AUM/ha, and 4) baling—were applied to a center pivot–irrigated corn field (53 ha). The field was divided into eight 6.6-ha paddocks to which replicated treatments were assigned. Samples of residue were collected in October and March (before and …

Anthropology, 2015-2016, University Of South Florida St. Petersburg

Academic Learning Compacts

The Academic Learning Compact for 2015-2016 for the Bachelor's of Arts in Anthropology.

Graphic Design, 2015-2016, University Of South Florida St. Petersburg

Academic Learning Compacts

The Academic Learning Compact for 2015-2016 for the Bachelor's of Fine Arts in Graphic Design.

Psychology, 2015-2016, University Of South Florida St. Petersburg

Academic Learning Compacts

The Academic Learning Compact for 2015-2016 for Psychology.

Development Of Listeriabase And Comparative Analysis Of Listeria Monocytogenes, Mui Fern Tan, Cheuk Chuen Siow, Avirup Dutta, Naresh V.R. Mutha, Wei Yee Wee, Hamed Heydari, Shi Yang Tan, Mia Yang Ang, Guat Jah Wong, Siew Woh Choo

School of Computing: Faculty Publications

Background: Listeria consists of both pathogenic and non-pathogenic species. Reports of similarities between the genomic content between some pathogenic and non-pathogenic species necessitates the investigation of these species at the genomic level to understand the evolution of virulence-associated genes. With Listeria genome data growing exponentially, comparative genomic analysis may give better insights into evolution, genetics and phylogeny of Listeria spp., leading to better management of the diseases caused by them.

Description: With this motivation, we have developed ListeriaBase, a web Listeria genomic resource and analysis platform to facilitate comparative analysis of Listeria spp. ListeriaBase currently houses 850,402 protein-coding genes, 18,113 …

Femtosecond Laser Induced Tunable Surface Transformations On (111) Si Aided By Square Grids Diffraction, Weina Han, Lan Jiang, Xiaowei Li, Yang Liu, Yongfeng Lu

Department of Electrical and Computer Engineering: Faculty Publications

We report an extra freedom to modulate the femtosecond laser energy distribution to control the surface ablated structures through a copper-grid mask. Due to the reduced deposited pulse energy by changing the scanning speed or the pulse fluence, a sequential evolution of three distinctly different surface patterns with periodic distributions is formed, namely, striped ripple lines, ripple microdots, and surface modification. By changing the scanning speed, the number of the multiple dots in a lattice can be modulated. Moreover, by exploring the ablation process through the copper grid mask, it shows an abnormal enhanced ablation effect with strong dependence of …

Physical Intimacy Of Breast Cancer Cells With Mesenchymal Stem Cells Elicits Trastuzumab Resistance Through Src Activation, Amita Daverey, Allison P. Drain, Srivatsan Kidambi

Department of Chemical and Biomolecular Engineering: Faculty Publications

The development of resistance to trastuzumab is a major obstacle for lasting effective treatment of patients with ErbB2-overexpressing tumors. Here, we demonstrate that the physical contact of breast cancer cells with mesenchymal stem cells (MSCs) is a potential modulator of trastuzumab response by activation of nonreceptor tyrosine kinase c-Src and down regulation of phosphatase and tensin homolog (PTEN). Using an in vitro patterned breast cancer/MSC co-culture model, we find that the presence of MSCs results in Src activation that is missing in cancer cells monoculture, transwell co-culture, and cells treated with MSCs conditioned media. Interestingly, the co-culture model also results …

Sustainability And Economic Analysis Of Propylene Carbonate And Polypropylene Carbonate Production Processes Using Co2 And Propylene Oxide, Yaşar Demirel

Yaşar Demirel Publications

Currently, the industrially important polycarbonates are synthesized from bisphenol A and diphenyl carbonate, which are highly toxic and hence other feasible alternatives are preferable. Following the considerable advances on the catalyst for the synthesis of carbonates from CO₂ and propylene oxide (PO), industrial scale processes for the productions of propylene carbonate (PC) and polypropylene carbonate (PPC) have been designed and simulated with sustainability and economic analyses. The CO₂ is supplied by a nearby bioethanol plant, while the PO from a petrochemical process. The first part of the study is for the production of 200 million lb/year cyclic PC …

Feasibility Of Pcm Slurry For Improved Thermal Efficiency Of An Historic Public Building In Ireland., Áine Doyle

Open Access Theses

Doyle, Áine M. M.S., Purdue University, December 2015. Feasibility of PCM Slurry for Improved Thermal Efficiency of an Historic Public Building in Ireland.

Pregnancy In The Classroom, Margaret Elizabeth Wu

Open Access Theses

This study examines the lived experiences of four high school teachers who have taught while they were pregnant. The teachers’ experiences are contextualized within a feminist psychoanalytic theoretical framework. Current maternity leave policy in the United States and popular culture texts provide additional contextualization for the women’s experiences.

Towards The Real-Time Application Of Indirect Methods For Hypersonic Missions, Michael Sparapany

Open Access Theses

Conceptual hypersonic mission design has typically been performed in a computationally intensive, iterative manner using direct optimization methods. The introduction of modern computing has resulted in the widespread adoption of direct methods, and useful information associated with optimal solutions has been lost. Optimization through indirect methods leverages this information, yielding high quality trajectories while reducing the dimensionality of the overall problem.

The Historical Evolution Of The German Present Perfect From The Perspective Of Complexity Theory And Emergent Grammar, Valentina Concu

Open Access Theses

The purpose of this study is to understand the meaning of the present perfect in Modern German and also, to trace its development in the early stages of German. Therefore, the synchronic analysis, in which I analyze articles from a famous German magazine, is combined with the diachronic study of the present perfect attestations in Old High German and Middle High German. This study is conducted within a Complexity-Theory and Emergent Grammar approach in which languages are viewed as dynamic system that changes over time, and grammar is seen as an epiphenomenon and a result of communicative needs among speakers.

The Smallest Leap Of Faith: A New Worldview For A Postmodern World?, Kelly C. Smith

Publications

It is undeniable that religion provides a sense of purpose, ethical direction, and social belonging that most human beings for most of recorded history have found to be profoundly important. But it is equally undeniable that its supernatural metaphysics and dogmatic conservatism have retarded society’s progress in many ways and caused untold human suffering. An obvious question is thus: Is it possible to preserve the beneficial aspects of religion but excise the problematic ones?

Immanuel Kant fathered the postmodern age with his devastating critique of the possibility of human knowledge of the Ultimate. However, Kant himself was far from skeptical …

Improved Amorphous Solid Dispersion Performance Using Binary Polymer Combinations, Tian Xie

Open Access Dissertations

With increasing attrition rate of new molecular entities due to sub-optimum aqueous

The Medical Cost Pandemic:Why Limiting Access To Cost-Effective Treatments Hurts The Global Poor, Govind Persad

Sturm College of Law: Faculty Scholarship

Medical innovation in developed countries like the U.S. leads to an ever-changing medical standard of care. This innovation frequently also brings rising costs. While these costs strain even the sizeable health care budgets of developed countries, imposing them on developing countries would be much more burdensome. Yet a variety of commentators and legal actors, such as the World Health OrganiZation and UNAIDS, have argued that the same standards of care must be provided worldwide, and have enforced mandates to that effect. Interpretations of the human rght to health as a tight to the "highest attainable standard of health" similarly advance …

Tissue-Specific Splice Variants Of Hare/Stabilin-2 Are Expressed In Bone Marrow, Lymph Node, And Spleen, Amanda K. Hare, Edward N. Harris

Department of Biochemistry: Faculty Publications

The hyaluronan receptor for endocytosis (HARE), or Stabilin-2, is the mammalian endocytic clearance receptor for HA, heparin, advanced glycation end-products, acetylated and oxidized low-density lipoproteins and collagen N-terminal propeptides. This large 2551 amino acid receptor is encoded by a gene that covers over 180 kbp on human chromosome 12 and is predicted to be composed of 69 exons. Due to the expression profile of this gene and the number of exons it contains, we hypothesized that splice variants of stab2 are encoded in these tissues. In addition, a correlation between alternative splice variants and cancer progression has been shown in …

Hyaluronidase Hyal1 Increases Tumor Cell Proliferation And Motility Through Accelerated Vesicle Trafficking, Caitlin O Mcatee, Abigail R. Berkebile, Christian Elowsky, Teresa Fangman, Joseph J. Barycki, James K. Wahl Iii, Oleh Khalimonchuk, Naava Naslavsky, Steve Caplan, Melanie A. Simpson

Department of Biochemistry: Faculty Publications

Background: Hyal1 is a turnover enzyme for hyaluronan that accelerates metastatic cancer by increasing cell motility.

Results: Hyal1-overexpressing cells have a higher rate of endocytosis that impacts cargo internalization and recycling.

Conclusion: The higher rate of vesicle trafficking increases motility receptor function and nutrient uptake.

Significance: This novel mechanism implicates Hyal1 trafficking in multiple signaling events during tumor progression.

Neuroscience, Virtues, Ethics, Compassion And The Question Of Character, R Younis

Philosophy Conference Papers

There has been much debate recently about the meaning, place and function of “character” and “character traits” in Virtue Ethics. For example, a number of philosophers have argued recently that Virtue Ethics would be strengthened as a theory by the omission of talk of character traits; recent neuroscientific studies have suggested that there is scope for scepticism about the existence of such traits. I will argue that both approaches are flawed and unconvincing: in brief, the first approach tends to be predicated on a narrow or insufficient conception of “character” and “character traits”; the second approach tends to go well …

The Dictionaries In Which We Learn To Think, Timothy Flanagan Dr.

Philosophy Papers and Journal Articles

Taking its title from the discussion of a ‘new Meno’ to be found in Difference and Repetition, through an examination of the link between learning and thinking set out across Deleuze's work this paper charts the important sense in which philosophical thought is characterised by an apprenticeship. The claim is that just as certain aesthetic and biological processes involve inscrutable and non-resembling elements that cannot be known in advance, the experience of learning is one oriented by unforseen encounters. With a view to a peculiarly heuristic use of dictionaries in the case of language learning, the paper shows how …

European Identity And Other Mysteries - Seeking Out The Hidden Source Of Unity For A Troubled Polity, P Jimenez

Philosophy Papers and Journal Articles

The economic crisis in Europe exposes the European Union’s (EU) political fragility. How a polity made of very different states can live up to the motto “Europe united in diversity” is difficult to envisage in practice. In this paper I attempt an “exegesis”—a critical explanation or interpretation of a series of published pieces (“the Series”) which explores, first of all, if European unity (and what kind) is desirable at all. Second, it presents a methodology running throughout the Series —analogical hermeneutics—to approach the problem of unity. Third, it conceptualises the source of unity as political identity (and solidarity). Fourth, it …