Digital Commons Network^™

How Did The Deepwater Horizon Oil Spill Affect Coastal And Continental Shelf Ecosystems Of The Gulf Of Mexico?, Steven Murawski, John E. Fleeger, William F. Patterson Iii, Chuanmin Hu, Kendra L. Daly, Isabel C. Romero, Gerardo Toro-Farmer

Marine Science Faculty Publications

The Deepwater Horizon (DWH) oil spill originated at the base of the continental shelf in the northern Gulf of Mexico (GoM), but large quantities of the oil were transported to the shelf (≤200 m water depth) and into coastal waters (herein defined as ≤15 km from the coast). Water-column effects were generally limited to the period of the ongoing oil releases, although, due to an extensive oil sedimentation event (“dirty blizzard”), effects on the benthos have the potential to be chronic, especially in soft sediments. Impacts on phytoplankton, zooplankton, and ichthyoplankton were relatively short-lived, and the abundance and species composition …

Mcnair Challenger, September 2016, Mcnair Scholars Program

EMU McNair Challenger

No abstract provided.

Education And Research Integration Of Emerging Multidisciplinary Medical Devices Security, Mehran Mozaffari Kermani, Reza Azarderakhsh, Mehdi Mirakhorli

Presentations and other scholarship

Traditional embedded systems such as secure smart cards and nano-sensor networks have been utilized in various usage models. Nevertheless, emerging secure deeply-embedded systems, e.g., implantable and wearable medical devices, have comparably larger “attack surface”. Specifically, with respect to medical devices, a security breach can be life-threatening (for which adopting traditional solutions might not be practical due to tight constraints of these often-battery-powered systems), and unlike traditional embedded systems, it is not only a matter of financial loss. Unfortunately, although emerging cryptographic engineering research mechanisms for such deeply-embedded systems have started solving this critical, vital problem, university education (at both graduate …

Juvenile Winter Flounder (Pseudopleuronectes Americanus) And Summer Flounder (Paralichthys Dentatus) Utilization Of Southern New England Nurseries: Comparisons Among Estuarine, Tidal River, And Coastal Lagoon Shallow-Water Habitats, David L. Taylor, Jason Mcnamee, John Lake, Carissa L. Gervasi, Danial G. Palance

Arts & Sciences Faculty Publications

This study evaluated the relative importance of the Narragansett Bay estuary (RI and MA, USA), and associated tidal rivers and coastal lagoons, as nurseries for juvenile winter flounder, Pseudopleuronectes americanus, and summer flounder, Paralichthys dentatus. Winter flounder (WF) and summer flounder (SF) abundance and growth were measured from May to October (2009–2013) and served as indicators for the use and quality of shallow-water habitats (water depth < 1.5–3.0 m). These bioindicators were then analyzed with respect to physiochemical conditions to determine the mechanisms underlying intraspecific habitat selection. WF and SF abundances were greatest in late May and June (maximum monthly mean = 4.9 and 0.55 flounder/m2 for WF and SF, respectively) and were significantly higher in the tidal rivers relative to the bay and lagoons. Habitat-related patterns in WF and SF abundance were primarily governed by their preferences for oligohaline (0.1–5 ppt) and mesohaline (6–18 ppt) waters, but also their respective avoidance of hypoxic conditions (< 4 mg DO/L) and warm water temperatures (>25 °C). Flounder habitat usage was also positively related to sediment organic content, which may be due to these substrates having sufficiently high prey densities. WF growth rates (mean = 0.25 ± 0.14 mm/day) …

Insights Into The Molecular Roles Of Heparan Sulfate Proteoglycans (Hspgs-Syndecans) In Autocrine And Paracrine Growth Factor Signaling In The Pathogenesis Of Hodgkin's Lymphoma, Rajendra Ghardbaran

Publications and Research

Syndecans (SDC, SYND) comprise a group of four structurally related type 1 transmembrane heparan sulfate proteoglycans (HSPGs) that play important roles in tumorigenic processes. SDCs exert signaling via their protein cores and their conserved transmembrane and cytoplasmic domains or by forming complexes with growth factors (GFs). In classical Hodgkin's lymphoma (cHL), a lymphoid neoplasm of predominantly B cell origin, SDC1 and SDC4 are the active SDCs, and a number of GF (vascular endothelial growth factor, fibroblast growth factor, etc.) signaling pathways have been studied. However, despite extensive pre-clinical and clinical research on SDC-mediated GF signaling in many cancer types, there …

Conversion Of Glycerol To 1,3-Propanediol Under Haloalkaline Conditions, Melanie R. Mormile, Daniel William Roush, Dwayne A. Elias, Oliver C. Sitton

Biological Sciences Faculty Research & Creative Works

A method of producing 1,3-propanediol. The method comprises fermenting a haloalkaliphilic species of Halanaerobium with a source of glycerol into 1,3-propanediol, at a pH of greater than about 10 and at a salt concentration of greater than about 5% w/v. Furthermore, with supplementation of vitamin B₁₂, the yield of 1,3-propanediol to glycerol can be increased.

Applications Of Nano-Indentation Methods To Estimate Nanoscale Mechanical Properties Of Shale Reservoir Rocks, Kouqi Liu, Mehdi Ostadhassan, Bailey Bubach

Petroleum Engineering Faculty Publications

In order to study the mechanical properties of shale samples from Bakken Formation, nanoindentation method, an imaging technique borrowed from other engineering disciplines, was used. Different types of nanoindentation curves were analyzed and the applicability of the nanoindentation theories to study mechanical properties of shale samples at nanoscale was demonstrated. Elastic modulus and Hardness of different samples were calculated, compared and related to their mineral compositions and microstructures which are detected by 2D XRD and FESEM methods, respectively. Results showed that samples with more clay minerals (mainly composed of illite) and larger pore structures have less Young's modulus. In addition, …

The Eugenics Movement In North Carolina, Alfred L. Brophy, Elizabeth Troutman

North Carolina Law Review

No abstract provided.

Ectopic Expression Of A Cyanobacterial Flavodoxin In Creeping Bentgrass Impacts Plant Development And Confers Broad Abiotic Stress Tolerance, Zhigang Li, Shuangrong Yuan, Haiyan Jia, Fangyuan Gao, Qian Hu, Dongfa Sun, Hong Luo

Publications

Flavodoxin (Fld) plays a pivotal role in photosynthetic microorganisms as an alternative electron carrier flavoprotein under adverse environmental conditions. Cyanobacterial Fld has been demonstrated to be able to substitute ferredoxin (Fd) of higher plants in most electron transfer processes under stressful conditions. We have explored the potential of Fld for use in improving plant stress response in creeping bentgrass (Agrostis stolonifera L.). Overexpression of Fld altered plant growth and development. Most significantly, transgenic (TG) plants exhibited drastically enhanced performance under oxidative, drought and heat stress as well as nitrogen (N) starvation, which was associated with higher water retention and …

How Did The Aca Affect Health Insurance Coverage In Kentucky?, Aaron Yelowitz

Institute for the Study of Free Enterprise Working Papers

The major components of the Affordable Care Act (ACA) were implemented in 2014, including the rollout of the Health Insurance Marketplace, Medicaid expansions, and the individual mandate. Kentucky stands out as one of the few southern states to expand Medicaid, and earlier work has demonstrated that Kentucky experienced some of the largest gains in health insurance coverage. The goal of the current study is to further explore the sources that individuals used to gain coverage in Kentucky using a large, publicly available dataset, the American Community Survey (ACS). Several findings emerge. First, overall health insurance coverage increased by 5.7 percentage …

The Temporal Dynamics Of Scene Processing: A Multifaceted Eeg Investigation, Assaf Harel, Iris Groen, Dwight J. Kravitz, Leon Y. Deouell, Chris I. Baker

Psychology Faculty Publications

Our remarkable ability to process complex visual scenes is supported by a network of scene-selective cortical regions. Despite growing knowledge about the scene representation in these regions, much less is known about the temporal dynamics with which these representations emerge. We conducted two experiments aimed at identifying and characterizing the earliest markers of scene-specific processing. In the first experiment, human participants viewed images of scenes, faces, and everyday objects while event-related potentials (ERPs) were recorded. We found that the first ERP component to evince a significantly stronger response to scenes than the other categories was the P2, peaking ∼220 ms …

Enhanced Biodegradation Of Spent Engine Oil Contaminated Soil Using Organic Wastes, Tolulope M. Obuotor, Abdulwasiu O. Sakariyau, Babatunde S. Bada

Applied Environmental Research

Physical and chemical methods of remediating contaminated soils are less environment-friendly compared to the biodegradation method. This study investigated the ability of selected organic wastes to enhance biodegradation of Spent Engine Oil (SEO) contaminated soil. One kilogram of uncontaminated soil was thoroughly mixed with 10% (w/v) SEO in seven treatments with two replicates. Spent Fruit Residues (SFR), Cassava Peel (CP) and a combination of Bean Husk and Chromolaena odorata(BHC) were added at 10% and20% (w/w), with an untreated control. Total Heterotrophic Bacterial Count (THBC), Total Fungal Count (TFC), Total Hydro-carbon Degrading Bacterial Count (THDBC) and Total Hydrocarbon Degrading Fungal Count …

Academic Affairs Update, September 2016, University Of Northern Iowa. Office Of The Provost And Executive Vice President For Academic Affairs.

Academic Affairs Update

Inside this issue:

-- Welcome to the 2016-17 academic year!
-- A Breath of Fresh AIR: Alums Return for Alumni in Residence Program

Peroxiredoxin Catalysis At Atomic Resolution, Arden Perkins, Derek Parsonage, Kimberly J. Nelson, O. Maduka Ogba, Paul Ha-Yeon Cheong, Leslie B. Poole, P. Andrew Karplus

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Peroxiredoxins (Prxs) are ubiquitous cysteine-based peroxidases that guard cells against oxidative damage, are virulence factors for pathogens, and are involved in eukaryotic redox regulatory pathways. We have analyzed catalytically active crystals to capture atomic resolution snapshots of a PrxQ-subfamily enzyme (from Xanthomonas campestris) proceeding through thiolate, sulfenate, and sulfinate species. These analyses provide structures of unprecedented accuracy for seeding theoretical studies, and show novel conformational intermediates giving insight into the reaction pathway. Based on a highly non-standard geometry seen for the sulfenate intermediate, we infer that the sulfenate formation itself can strongly promote local unfolding of the active site to …

Educational Policies Committee Agenda, September 1, 2016, Utah State University

Educational Policies Committee

• Subcommittee Reports
• Curriculum Subcommittee
• Course Approvals
• Program Proposals
• Academic Standards Subcommittee
• General Education Subcommittee

Ptrm 482.01: Wilderness And Protected Area Management, William T. Borrie

University of Montana Course Syllabi, 2016-2020

No abstract provided.

Materials And Techniques Used In Cranioplasty Fixation: A Review, Basel A. Khader, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

Cranioplasty is the surgical repair of a deficiency or deformity of the skull. The purpose of cranioplasty is to provide protection for the brain following cranial surgery, and to offer relief to psychological disadvantages while increasing social performance. There are several materials that had been used for cranioplasty, but an ideal product has yet to be developed, hence the ongoing research into biologic and non-biologic alternatives to the existing materials. This article critiques the products currently used for cranioplasty in order to facilitate the development of new materials, which can improve patient outcomes.

Processing Of Individual Items During Ensemble Coding Of Facial Expressions, Huiyun Li, Luyan Ji, Ke Tong, Naixin Ren, Wenfeng Chen, Chang Hong Liu, Xiaolan Fu

Psychology Faculty Publications

There is growing evidence that human observers are able to extract the mean emotion or other type of information from a set of faces. The most intriguing aspect of this phenomenon is that observers often fail to identify or form a representation for individual faces in a face set. However, most of these results were based on judgments under limited processing resource. We examined a wider range of exposure time and observed how the relationship between the extraction of a mean and representation of individual facial expressions would change. The results showed that with an exposure time of 50 ms …

An Anthropometric Risk Index Based On Combining Height, Weight, Waist, And Hip Measurements, Nir Y. Krakauer, Jesse C. Krakauer

Publications and Research

Body mass index (BMI) can be considered an application of a power law model to express body weight independently of height. Based on the same power law principle, we previously introduced a body shape index (ABSI) to be independent of BMI and height. Here, we develop a new hip index (HI) whose normalized value is independent of height, BMI, and ABSI. Similar to BMI, HI demonstrates a U-shaped relationship to mortality in the Third National Health and Nutrition Examination Survey (NHANES III) population. We further develop a new anthropometric risk index (ARI) by adding log hazard ratios from separate nonlinear …

Situating Computer Simulation Professional Development: Does It Promote Inquiry-Based Simulation Use?, Amanda L. Gonczi, Jennifer L. Maeng, Randy L. Bell, Brooke A. Whitworth

Publications

This mixed-methods study sought to identify professional development implementation variables that may influence participant (a) adoption of simulations, and (b) use for inquiry-based science instruction. Two groups (Cohort 1, N = 52; Cohort 2, N = 104) received different professional development. Cohort 1 was focused on Web site use mechanics. Cohort 2 was situated in nature and provided three additional elements: (a) modeling simulation use within inquiry-based instruction; (b) collaboration; and (c) provision of content-relevant lesson planning time. There was no difference in the extent of simulation use between cohorts, χ2(1) = 0.878, p = .349, φ = −0.075. Results …

Spontaneous Uterine Rupture At 28 Weeks: A Case Report, Mahreen Rasool, Imrana Masroor, Shafia Shakoor, Shama Munim

Department of Radiology

Abstract

Spontaneous Uterine rupture is associated with massive intra-peritoneal bleed which can be fatal if not recognized. We report a case of 32 year old multigravida at 28 weeks of gestation with history of liver cysts, previous caesarean and uterine curettage, who presented with acute abdominal pain and tenderness; ultrasound revealed placenta percreta. CT abdomen showed haemoperitoneum. The patient underwent emergency caesarean hysterectomy due to uterine rupture at the cornual site.

University Honors Program Newsletter, Honors College, Georgia Southern University

Honors College: News & Publications (2008-2020)

• Jenny Shaffer Engineers a Third Trip to Germany
• Of Dogs and Doctors: Presenting Research in Dublin
• Summer Research Update
• Honors Students Cross the Equator

Database Spotlight: Education Fall 2016, The University Of Alabama In Huntsville

Database Spotlight

No abstract provided.

The Mitochondrial Cytochrome Oxidase Subunit I Gene Occurs On A Minichromosome With Extensive Heteroplasmy In Two Species Of Chewing Lice, Geomydoecus Aurei And Thomomydoecus Minor, Lucas L. Pietan, Theresa A. Spradling, James W. Demastes

Faculty Work

In animals, mitochondrial DNA (mtDNA) typically occurs as a single circular chromosome with 13 protein-coding genes and 22 tRNA genes. The various species of lice examined previously, however, have shown mitochondrial genome rearrangements with a range of chromosome sizes and numbers. Our research demonstrates that the mitochondrial genomes of two species of chewing lice found on pocket gophers, Geomydoecus aurei and Thomomydoecus minor, are fragmented with the 1,536 base-pair (bp) cytochrome-oxidase subunit I (cox1) gene occurring as the only protein-coding gene on a 1,916–1,964 bp minicircular chromosome in the two species, respectively. The cox1 gene of T. …

The Curative Power Of Play: The Voices Of Therapists Around The World, Nancy Riedel Bowers, Winnie Pak Wan Yeung, Anna Lee Bowers

Lyle S. Hallman Social Work Faculty Publications

It is important for all therapists to be culturally sensitive to children and their eco-systems as well as to be aware of the current trends and the changing application of play as a healing agent. The focus of this study is on the development of a current description of play by therapists from a global perspective through a thematic analysis of focus groups resulting in an explanation of how play contributes to healing and the practice of therapy. In this study, the naturalistic method of qualitative research (Bowers, 2009; Lincoln & Guba, 1985) was applied to the study of play …

Phragmites Australis As A Model Organism For Studying Plant Invasions, Laura A. Meyerson, James T. Cronin, Petr Pyšek

Faculty Publications

© 2016, Springer International Publishing Switzerland. The cosmopolitan reed grass Phragmites australis (Poaceae) is an intensively studied species globally with a substantial focus in the last two decades on its invasive populations. Here we argue that P. australis meets the criteria to serve as a model organism for studying plant invasions. First, as a dominant species in globally important wetland habitats, it has generated significant pre-existing research, demonstrating a high potential for funding. Second, this plant is easy to grow and use in experiments. Third, it grows abundantly in a wide range of ecological systems and plant communities, allowing a …

Biological Control Of Invasive Phragmites Australis Will Be Detrimental To Native P. Australis, James T. Cronin, Erik Kiviat, Laura A. Meyerson, Ganesh P. Bhattarai, Warwick J. Allen

Faculty Publications

No abstract provided.

Response To Blossey And Casagrande: Ecological And Evolutionary Processes Make Host Specificity At The Subspecies Level Exceedingly Unlikely, Ganesh P. Bhattarai, Warwick J. Allen, James T. Cronin, Erik Kiviat, Laura A. Meyerson

Faculty Publications

No abstract provided.

Characterization Of The Drosophila Beaf-32a And Beaf-32b Insulator Proteins, S. V. Satya Prakash Avva, Craig M. Hart

Faculty Publications

© 2016 Avva, Hart. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Data implicate the Drosophila 32 kDa Boundary Element-Associated Factors BEAF-32A and BEAF-32B in both chromatin domain insulator element function and promoter function. They might also function as an epigenetic memory by remaining bound to mitotic chromosomes. Both proteins are made from the same gene. They differ in their N-terminal 80 amino acids, which contain single DNA-binding BED fingers. The remaining 200 amino …

Faculty Senate Newsletter, September 2016, Louisiana State University And Agricultural & Mechanical College

LSU Faculty Senate Publications

Message from President: Academe is not immune to the new epidemic of affiliation. Often enough, thinking people choose careers in higher education owing in part to a desire to escape the avalanche of demographic labels—race; class; gender; ethnicity; income; educational level; zip code and associated social status; favorite URLs—that rolls over individuality and buries free thinking. Academe, many hope, provides the last bastion for individual achievement. The quest for liberty, whether from imposed group identities or mass movements, is, as revolutionaries soon discover, not so easy as expected. Even dissidents want to belong to something. Surprisingly, academic folk prize affiliation …