Digital Commons Network^™

Development Of Early Warning Modeling System For Sudden Chemical Spill In Plain River Network, Hai-Long Yin, Zu-Xin Xu, Chen Wang, Da Yu

Journal of Marine Science and Technology–Taiwan

An early warning modeling system for assessing potential river water quality threat from sudden chemical discharge incidents was developed, based on a hydrodynamic model for tidal plain river network equipped with sluice gates and water quality models. For the hydrodynamic model, the mode to simulate river flow under artificial irreversible gate operation was presented, so that the flow related to gate control with tidal occurrence could be simulated, which was calibrated by the measured data. For the water quality models, three kinds of models including oil spill model, hydrophobic model and hydrophilic model were developed based on chemical properties. With …

Evaluation Of The Recovery Time Of Sea Bass (Dicentrarchus Labrax Linnaeus, 1758) Juveniles From Transport And Handling Stress: Using Ammonia Nitrogen Excretion Rates As A Stress Indicator, Betül Kayali, Murat Yigit, Musa Bulut

Journal of Marine Science and Technology–Taiwan

A time-course study was conducted in order to evaluate the recovery time of juvenile Sea bass (Dicentrarchus labrax) from transport and handling stress. Among metabolite indices, ammonia nitrogen excretion rates were used as stress indicator. The measurements were carried out in water ambience of 13 ± 1ºC under natural light conditions (16L/8D photoperiod). Juveniles were transported for about 2 hours in a fish transport tank with oxygen supply. Handling stress was due to netting at the outlet site during stocking fish into the transport tank and netting at the experimental facility while transferring fish from transport tank into experimental tanks. …

Design Of A Two-Stage Electromagnetic Impulse Force Circuit For Gene Gun, Pei-Hwa Huang, Ping-Yin Chen

Journal of Marine Science and Technology–Taiwan

The main objective of this paper is to present a design of the power source for gene gun based on the principle of electromagnetic mechanism. The energy stored in capacitors will be discharged toward the electromagnetic device of gene gun for providing micro-projectiles with electromagnetic force to generate the desired impact force, and a specific electronic circuit is to be designed to achieve the coupling between the electromagnetic device and the energy storage capacitor. A gene gun is to be implemented for a testing purpose. In order to reduce the size and the cost of the gene gun, a two-stage …

A New Species Of Rhinogobius Gill, 1859 (Teleostei: Gobiidae) From The Bonin Islands, Japan, Toshiyuki Suzuki, I-Shiung Chen, Hiroshi Senou

Journal of Marine Science and Technology–Taiwan

A new freshwater goby, Rhinogobius ogasawaraensis was collected from streams of the Bonin Islands (Ogasawara Group), Japan. The species can be distinguished from all congeneric species by the following combination of characters: (1) meristic features: second dorsal fin rays I, 8-9; pectoral fin rays 18-20; predorsal scales 7-16; longitudinal scale rows usually 32-34; vertebral count 26; and (2) specific colouration: check with some red spots, nape with several longitudinal dark stripes, upper part of pectoral fin base with a horizontal deep brown bar, intermittent dark dotted rows along middle axis of body, no saddle shaped patch of dark dots on …

Aging Of Florida Blue Crabs, Callinectes Sapidus, Through The Biochemical Extraction Of Lipofuscin, Claire Elizabeth Crowley

USF Tampa Graduate Theses and Dissertations

The blue crab, Callinectes sapidus, represents an ecologically and economically important component of marine and estuarine ecosystems. In Florida, blue crab landings accounted for $9.6 million dollars during the 2010 fishing season. Accurate stock assessments for this valuable fishery are essential. Age is a critical biological component of accurate stock assessments; however, blue crabs and other crustaceans are especially difficult to age because of the complex nature of discrete growth. Biochemical extraction of an aging pigment, lipofuscin, was developed using blue crab eyestalks. The current study investigated the effects of freezing preservation on lipofuscin extracts and examined whether the …

Elucidating Matrix Protein Import And Beta-Oxidation Pathways In Plant Peroxisomes, Bibi Rafeiza Khan

Dissertations

Plant peroxisomes function in fatty acid β-oxidation, jasmonic acid (JA) synthesis, and conversion of indole-3-butyric acid (IBA) to indole-3-acetic acid (IAA). Peroxisomes lack genetic material; proteins required for peroxisomal processes are imported posttranslationally. The PEX5 and PEX7 receptors import proteins containing one of two peroxisomal targeting signals (PTS1 or PTS2). I took a genetic approach to better understand protein import and to elucidate the role of Acyl-CoA Oxidase (ACX) enzymes in the model plant Arabidopsis thaliana. ACX enzymes catalyze the first step in β-oxidation. There are six ACX genes in Arabidopsis and each ACX enzyme acts on specific chain-length targets, …

Map Kinases Couple Hindbrain-Derived Catecholamine Signals To Hypothalamic Adrenocortical Control Mechanisms During Glycemia-Related Challenges, Arshad Khan, Kimberly Kaminski, Graciela Sanchez-Watts, Todd Ponzio, J. Kuzmiski, Jaideep Bains, Alan Watts

Selected Works Temporary Series

No abstract provided.

Obesity: The Anthropometric And Demographic Characteristics Of Insured And Uninsured Individuals, Terra Fox Williams

Master of Public Health Program Student Publications

Objectives. This study evaluates the association between Body Mass Index (BMI) and health insurance status in attendees at a local health fair. BMI was also compared among ages, gender, and races.

Methods. Descriptive analysis conducted using data collected at the “Celebrating Life and Health” health fairs between the years 2008 and 2011. Data for this study were collected at the BMI booth staffed by Wright State Boonshoft School of Medicine students.

Results. The results of this particular study do not demonstrate a statistical difference between obesity and health insurance status. Consistent with other research articles this study does show that …

We Are…Marshall, December 14, 2011, Office Of Marshall University Communications

We Are ... Marshall: the Newsletter for Marshall University 1999-2023

No abstract provided.

Relating Dynamic Protein Interactions Of Metallochaperones With Metal Transfer At The Single-Molecule Level, J. J. Benítez, A. M. Keller, D. L. Huffman, Liliya A. Yatsunyk, A. C. Rosenzweig, P. Chen

Chemistry & Biochemistry Faculty Works

Metallochaperones undertake specific interactions with their target proteins to deliver metal ions inside cells. Understanding how these protein interactions are coupled with the underlying metal transfer process is important, but challenging because they are weak and dynamic. Here we use a nanovesicle trapping scheme to enable single-molecule FRET measurements of the weak, dynamic interactions between the copper chaperone Hahl and the fourth metal binding domain (MBD4) of WDP. By monitoring the behaviors of single interacting pairs, we visualize their interactions in real time in both the absence and the presence of various equivalents of Cu(1+). Regardless of the proteins' metallation …

Pegylated Phthalocyanines: Synthesis And Spectroscopic Properties, Hairong Li, Frank R. Fronczek, M. Graa H. Vicente

Faculty Publications

The synthesis and spectroscopic properties of Zn(II)-phthalocyanines containing up to eight tri(ethylene glycol) groups are described. These pegylated-phthalocyanines are highly soluble in polar solvents and might find application as fluorescence imaging and/or photosensitizing agents for PDT.

The Antelope, University Of Nebraska At Kearney

The Antelope

No abstract provided.

Map Kinases Couple Hindbrain-Derived Catecholamine Signals To Hypothalamic Adrenocortical Control Mechanisms During Glycemia-Related Challenges, Khan, Kimberly Kaminski, Graciela Sanchez-Watts, Todd Ponzio, J. Kuzmiski, Jaideep Bains, Alan Watts

Departmental Papers (Biology)

No abstract provided.

Xpa-Mediated Regulation Of Global Nucleotide Excision Repair By Atr Is P53-Dependent And Occurs Primarily In S-Phase, Zhengke Li, Phillip R. Musich, Moises A. Serrano, Zhiping Dong, Yue Zou

ETSU Faculty Works

Cell cycle checkpoints play an important role in regulation of DNA repair pathways. However, how the regulation occurs throughout the cell cycle remains largely unknown. Here we demonstrate that nucleotide excision repair (NER) is regulated by the ATR/p53 checkpoint via modulation of XPA nuclear import and that this regulation occurs in a cell cycle-dependent manner. We show that depletion of p53 abrogated the UV-induced nuclear translocation of XPA, while silencing of Chk1 or MAPKAP Kinase-2 (MK2) had no effect. Inhibition of p53 transcriptional activities and silencing of p53-Ser15 phosphorylation also reduced the damage-induced XPA nuclear import. Furthermore, in G1-phase cells …

Chemical Templating By Afm Tip-Directed Nano-Electrochemical Patterning, Kyle A. Nelson

Theses and Dissertations

This work has examines the creation and use of chemical templates for nanocircuit and other nanodevice fabrication. Chemical templating can be useful in attachment, orientation and wiring of molecularly templated circuits. DNA origami provides a suitable method for creating molecularly templated circuits as DNA can be folded into complex shapes and functionalized with active circuit elements, such as semiconducting nanomaterials. Surface attachment of DNA origami structures can be accomplished by hybridization of dangling single-stranded DNA (ssDNA) on the origami structures with complementary surface-bound strands. Chemical templating provides a pathway for placing the patterned surface-bound attachment points needed for surface alignment …

Peasant Movement To Constitute Life-Affirming Communities In Bangladesh = 孟加拉國重視生命的農民運動, Farhad Mazhar Muzharul Hug

South South Forum 南南論壇

Led by small scale farming communities of Bangladesh, biodiversity-based ecological agriculture, known as Nayakrishi Andolon (New Agricultural Movement), has become popular as a peasant movement. It is not a 'traditional' farming practice in a static sense but aims at enhancing capacity of the farming communities to absorb advances in environmental, ecological and biological sciences and recent knowledge of increasing climatic variability. It is done without compromising the life affirming wisdom of popular culture of rural Bangladesh and without displacing the historical experience and capacity of the agrarian civilisation. The movement envisions an ecological civilization and by its agrarian practice intends …

A Fifteen-Year Plan For Cobia (Rachycentron Canadum) Aquaculture Development In Brazil, Bruno Sardenberg

Open Access Theses

A fifteen-year plan has been developed for cobia (Rachycentron canadum) aquaculture in Brazil. Guidelines are recommended for implementing reachable goals within a reasonable time frame, taking into consideration current status of technology development, environmental parameters, logistics and market. This plan reports potentialities, constraints and outlines the infrastructure and operational needs of a vertically integrated (hatchery and growout) cobia aquaculture industry in Brazil. Fingerlings availability, manpower, feeds among others essential requirements are evaluated and discussed. A pilot-scale operation plan including risk and financial analysis is also presented for the early development stages of the project. Asian countries, especially China, Taiwan and …

Explaining Investment Policies In Microstates: The Case Of The Fiji Islands, Sudarsan Kant

Dissertations

Prevailing theories have failed to take into account the development of policy and institutions in microstates that are engineered to attract investments in areas of comparative advantage as these small islands confront the challenges of globalization and instead have emphasized migration, remittances and foreign aid (MIRAB) as an explanation for the survival of microstates in the global economy. This dissertation challenges the MIRAB model as an adequate explanation of investment strategy in microstates and argues that comparative advantage is a better theory to explain policy behavior of microstates. These small economies can take advantage of their exotic locations and natural …

The Effect Of Problem-Solving Video Games On The Science Reasoning Skills Of College Students, Tina Marie Fanetti

Dissertations

As the world continues to rapidly change, students are faced with the need to develop flexible skills, such as science reasoning that will help them thrive in the new knowledge economy. Prensky (2001), Gee (2003), and Van Eck (2007) have all suggested that the way to engage learners and teach them the necessary skills is through digital games, but empirical studies focusing on popular games are scant. One way digital games, especially video games, could potentially be useful if there were a flexible and inexpensive method a student could use at their convenience to improve selected science reasoning skills. Problem-solving …

Fine Roots Of Aspen Clones In High Salt And Petroleum Hydrocarbon Pollution, Kim Yrjälä, Ivika Ostonen, Shinjini Mukherjee, Timo Sipila, Lu-Min Vaario, Pertti Pulkkinen

Aspen Bibliography

The quality of polluted soil can much be improved and the environmental risks reduced by use of phytoremediation. Harmful hydrocarbon compounds can be degraded through the activity of plant and its associated microbes. We previously showed that PAHs increase aromatic ring-cleavage gene diversity in rhizosphere of birch (Sipilä et al. 2008, Yrjälä et al. 2010a) and the rhizosphere of aspen harbors Burkholderia bacteria able to degrade aromatics (Yrjälä et al. 2010b). The results are promising for successful remediation of polluted soils with woody plants. The aim of our studies is to elucidate the response of the plant and the associated …

Computer-Aided Pathological Diagnosis System, Wei Qian, Dansheng Song, Tatyana A. Zhukov

USF Patents

The present invention is a computer-aided pathological diagnosis method for the classification of cancer cells in a tissue specimen based on a digital cellular image of the tissue specimen. The method of the present invention includes the steps of, extracting the histological characteristic features of the cellular image using preprocessing algorithms having adaptive strategies to enhance the cellular image, declustering the extracted histological characteristic features of the cellular image to isolate the individual cells and the nuclei inside the cells, segmenting the declustered cellular image, labeling the segmented cellular image and classifying the cells in the labeled cellular image as …

Spectrophotometric System For Simultaneous Flow-Through Measurements Of Dissolved Inorganic Carbon, Ph And Co2 Fugacity, Robert H. Byrne, Eric Kaltenbacher, Xuewu Liu

USF Patents

Provided is a flow-through CO2 system for simultaneously measuring surface seawater pH, carbon dioxide fugacity (fCO2), and total dissolved inorganic carbon (DIC). All measurements are based on spectrophotometric determinations of solution pH at multiple wavelengths using sulfonephthalein indicators.

Everything I Need To Know About Family Law I Learned From Teen Mom: Part Two In A Two-Part Series, Joanna L. Grossman

Hofstra Law Faculty Scholarship

The lives of teen parents are often complicated, as we see depicted over and over again in the MTV reality show Teen Mom. Although this show is not about law (Law and Order: Teen Mom might be an interesting new spinoff, however), the teen mothers find themselves in a variety of family law controversies in the natural course of things. In this column, I’ll consider just a sampling of the legal issues raised on the show, including those related to legal fatherhood, parental rights, child custody, domestic violence, and open adoption.

C-Met Initiates Epithelial Scattering Through Transient Calcium Influxes And Nfat-Dependent Gene Transcription, Peter R. Langford

Theses and Dissertations

Hepatocyte growth factor (HGF) signaling drives epithelial cells to scatter by breaking cell-cell adhesions and migrating as solitary cells, a process that parallels epithelial-mesenchymal transition. HGF binds and activates the c-Met receptor tyrosine kinase, but downstream signaling required for scattering remains poorly defined. This study addresses this shortcoming in a number of ways.A high-throughput in vitro drug screen was employed to identify proteins necessary in this HGF-induced signaling. Cells were tested for reactivity to HGF stimulation in a Boyden chamber assay. This tactic yielded several small molecules that block HGF-induced scattering, including a calcium channel blocker. Patch clamping was used …

The Direct Role Of Enzyme Hydrolysis On Ammonium Regeneration Rates In Estuarine Sediments, Afonso C. Souza, Tamara K. Pease, Wayne S. Gardner

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)

Benthic ammonium (NH4 +) regeneration in coastal marine sediments has a fundamental role in nitrogen (N) cycling and N supply to primary producers. Nitrogen regeneration involves benthic microbial mineralization of organic-N, which, in turn, depends on protein hydrolysis. These processes were examined in Aransas Bay (Texas, USA) sediments by monitoring NH4 + evolution as a function of enzyme activity in controlled sediment slurries. Casein and tannic acid were added to evaluate the direct role of aminopeptidase on NH4 + production and the effects of a polyphenolic enzyme inhibitor, respectively. Casein additions increased the NH4 + concentration from 19 ± 0.3 …

Development Of Dual-Pathway Inhibitors Of Raf/Mek/Erk And Pi3k/Akt Signaling Pathways., Sasha Fraser

Theses and Dissertations

In the present study, we designed a new chemical template that contains an oxindole moiety as potential dual-pathway inhibitors of the Raf/MEK/ERK and PI3K/Akt signaling pathways. The design hypothesis is to evaluate whether the oxindole ring system will approximately orient functional groups in a similar manner to the thiazolidinedione moiety, and thus maintain biological activity as dual-pathway inhibitors of the Raf/MEK/ERK and PI3K/Akt signaling pathways. Furthermore, the oxindole ring will provide the flexibility to allow the introduction of various substituents on the oxindole moiety, thereby facilitating comprehensive SAR studies to further explore the biological activity.

Species Level Differences In The Ecology Of Two Neotropical Tadpole Species: Responses To Nonlethal Predators And The Roles Of Competition And Resource Use, Zacharia Costa

Theses and Dissertations

Closely related species at the same trophic level are often considered to be ecologically equivalent. However, it is clear that individuals species can have unique functional roles that drive community and ecosystem processes. In this study we examine the growth responses of two Neotropical hylid tadpole species, Agalychnis callidryas and Dendropsophus ebraccatus, to intraspecific and interspecific competition. We also look at density-dependent effects of each on phytoplankton, periphyton and zooplankton, as well as their responses to a caged dragonfly predator through ontogeny. Intraspecific competition affected both species similarly, and their effects on resources were qualitatively similar but quantitatively different. Predators …

Development And Characterization Of Anti-Cd20-Nkg2d-Ligand Fusion Proteins, Patrice N. Harris

Open Access Theses

CD20 is a 35kDa surface antigen expressed on B cells from the early pre-B stage through the mature B stage. Moreover, the CD20 antigen is found on a majority of B cell malignancies. Rituximab is a chimeric anti-CD20 monoclonal antibody which has been extensively used alone or in combination in the treatment of CD20+ B cell malignancies including acute lymphoblastic leukemia (ALL), non-Hodgkin’s lymphomas (NHL) and chronic lymphocytic leukemia (CLL), as well as in the treatment of numerous autoimmune disorders. Despite its emerging use in the clinic, 30% to 50% of patients with low-grade NHL exhibit no clinical response to …

Grand Valley Forum, Volume 036, Number 16, December 12, 2011, Grand Valley State University

2011-2012, Volume 36

Grand Valley Forum is Grand Valley State's faculty and staff newsletter, published from 1976 to the present.

Lanthorn, Vol. 46, No. 31, December 12, 2011, Grand Valley State University

Volume 46, July 14, 2011 - June 18, 2012

Lanthorn is Grand Valley State's student newspaper, published from 1968 to the present.