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Adaptive Optics Scanning Ophthalmoscopy With Annular Pupils, Yusufu N. Sulai, Alfredo Dubra

Biomedical Engineering Faculty Research and Publications

Annular apodization of the illumination and/or imaging pupils of an adaptive optics scanning light ophthalmoscope (AOSLO) for improving transverse resolution was evaluated using three different normalized inner radii (0.26, 0.39 and 0.52). In vivo imaging of the human photoreceptor mosaic at 0.5 and 10° from fixation indicates that the use of an annular illumination pupil and a circular imaging pupil provides the most benefit of all configurations when using a one Airy disk diameter pinhole, in agreement with the paraxial confocal microscopy theory. Annular illumination pupils with 0.26 and 0.39 normalized inner radii performed best in terms of the narrowing …

Doing Science Within A Culture Of Machismo And Marianismo, Karen Englander, Carmen Yáñez, Xochitl Barney

Journal of International Women's Studies

Women have been joining the ranks of professional scientists in increasing numbers although international statistics indicate that women‘s participation varies substantially in different regions. Variation in rates of participation can be explained in part by cultural contexts, and in Mexico, dominant cultural ideologies of machismo and marianismo prevail. To understand the impact, if any, of these ideologies on the lives of women scientists in their professional interactions, a case study was conducted at one research institute. The results indicate that the women scientists report different interactions with men and with other women, and interactions vary with the status of the …

Occupational Health And Safety In Small Scale Mining: Focus On Women Workers In The Philippines, Jinky Leilanie Lu

Journal of International Women's Studies

This study highlights women’s participation in small scale mining, and their occupational safety and health conditions. Small scale mining is a significant source of income in many developing countries such as the Philippines, Papua New Guinea, Bolivia, Colombia, Indonesia, Mali, and Zimbabwe. In the Philippines, small-scale mining has been the leading occupational group among all mineral industries. However, data show that women face many issues in mining such as double burden of work-home responsibilities, chemical exposure to either cyanide or mercury used in extracting gold, dust from manganese and other minerals, and respiratory and systemic diseases from toxic chemical exposures. …

Economic Status, Education And Risky Sexual Behavior For Urban Botswana Women, Kakanyo Fani Dintwa

Journal of International Women's Studies

This study investigated the relationship between economic status, education and risky sexual behavior for urban Botswana women. The data used are a nationally representative sample from the Botswana AIDS Impact Survey conducted in 2004. An un-weighted sample of 2215 women aged 15-49, who have had sexual intercourse was considered for analysis. Both bivariate and multivariate analyses are used to gain insights into the potential linkages between economic status, education and risky sexual behavior. The bivariate analysis shows that there is a significant relationship between dependent variable (number of sexual partners) and economic status. However, with the introduction of controls the …

The Effect Of Ad Libitum Hydration On Cognitive Function Following Exercise In The Heat, Matthew Wittbrodt

Masters Theses

The purpose of this study was to quantify the effect of different hydration strategies on physiological and cognitive variables after an exercise bout in the heat. On three occasions, twelve males performed three heat stress tests of 50min at 60%VO_2peak in a hot environment (32°C; 65%RH). The heat stress tests differed in hydration strategy to be implemented during exercise (NF: no fluid, AL: ad libitum, FR: full fluid replacement). A cognitive battery was administered pre-­ and post-­exercise to examine alterations in cognition. Fluid loss during NF was greater than the AL and FR (NF: 1.54 %; AL: 0.29 …

Forests, Protected Areas And The Payment For Ecosystem Services: Reserva Do Juma (State Of Amazonas- Brazil), Solange Teles Da Silva, Danielle De Ouro Mamed

Global Environmental Law at a Crossroads

In the State of Amazonas, the Climate Change, Environmental Conservation and Sustainable Development Policy Act adopted by State Law n. º 3.135/2007 has created a Program called “Bolsa Floresta”. In a pioneering way, this program was established with the aim of starting the payment for environmental services and products to traditional communities for the sustainable use of natural resources, conservation, environmental protection and encouragement of voluntary policies to reduce deforestation. This Program of “compensation” - “Bolsa Floresta” - is divided into four types: a) “Bolsa Floresta” Family b) “Bolsa Floresta” Association c) “Bolsa Floresta” Social and, d) “Bolsa Floresta” Income. …

Payment For Ecosystems Services: A Pathway For Environmental Conservation In Uganda, Emmanuel Kasimbazi

Global Environmental Law at a Crossroads

Ecosystem services are components of nature, directly enjoyed, consumed, or used to yield human well-being. They occur wherever plants, animals and people have interdependent relationships within the context of their physical environment. Payment for ecosystem services (PES) is a developing system which refers to payment for economic value of ecosystems. It is a scheme designed to provide incentives to individual landowners and local communities to conserve the environment. PES schemes seek to formulate a certain value to environmental services and establish appropriate pricing, institutional and redistribution systems that will lead to sustainable and socially optimal land use practices. These schemes …

The Relationship Of Ecosystem Services Valuation, Protection And Distribution With The Polluter-Pays Principle And The Provider-Gets Principle, Blaise-Pascal Ntirumenyerwa Mihigo, An Cliquet

Global Environmental Law at a Crossroads

This paper discusses the environmental, economic and social aspects of ecosystem services (ES) and their interactions with the polluter-pays principle and the provider-gets principle. The paper ends with observations concerning the theoretical and practical relationship of those principles with ES and Payment for Ecosystem Services (PES) programs.

ES have attracted increasing interest through PES as a mechanism which translates external, non-market values of the environment into real financial incentives for local actors to provide ES. The PES approach has inspired new incentives, innovative financing for ecosystem protection. The PES seeks to internalize what would otherwise be an externality. Here, we …

Institutional Research…Annual Report, 2011-2012, University Of Arkansas, Fayetteville. Office Of Institutional Research

Office of Institutional Research and Assessment Annual Report

No abstract provided.

Annual Report, 2011-2012, University Of Arkansas, Fayetteville. Graduate School And International Education

Graduate School and International Education Annual Report

No abstract provided.

The University Of San Francisco Fact Book And Almanac 2012 Mid-Year Edition, University Of San Francisco Office Of Institutional Research

USF Fact Book and Almanac

No abstract provided.

Comparative Growth And Survival Of Juvenile Atlantic Cod (Gadus Morhua)Cultured In Copper And Nylon Net Pens, Winsor H. Watson Iii, Michael D. Chambers, Jon Bunker, William Hunting Howell

Jackson Estuarine Laboratory

Bio-fouling on net pens has been a major concern for the marine aquaculture industry. As cage systems increase in size, so does the surface area for the attachment of colonial organisms that create drag on the net, reduce water flow important to fish health, and increase operational expenses due to net cleaning. To solve this problem, the International Copper Association (ICA) has been developing copper alloy netting for sea cages. Copper netting has unique properties that minimize bio-fouling, reduce the risk of fish escapement, prevent predators from entering the net pen, and is recyclable. To test the alloy netting, an …

Annual Report, 2011-2012, University Of Arkansas, Fayetteville. Office Of The Vice Provost For Research And Economic Development

Research and Innovation Annual Report

No abstract provided.

Faculty Publications & Presentations, 2011-2012, University Of Arkansas, Fayetteville

Faculty Publications and Presentations

No abstract provided.

2011-2012 Department Of Internal Medicine Scholarly Activity Report, Quillen College Of Medicine, East Tennessee State University

Quillen College of Medicine Scholarly Activity Reports

No abstract provided.

2011-2012 Department Of Biomedical Sciences Scholarly Activity Report, Quillen College Of Medicine, East Tennessee State University

Quillen College of Medicine Scholarly Activity Reports

No abstract provided.

2011-2012 Department Of Psychiatry And Behavioral Sciences Scholarly Activity Report, Quillen College Of Medicine, East Tennessee State University

Quillen College of Medicine Scholarly Activity Reports

No abstract provided.

2011 Annual Report, Joseph A. Cook

Annual Reports

No abstract provided.

June 2012, University Of Texas At Tyler

This Month in UT Tyler History

No abstract provided.

Information Document For Selecting Gloves For Protection Against Mechanical Hazards, Patricia Dolez, Katayoun Soulati, Chantal Gauvin, Jaime Lara, Toan Vu-Khanh

Guides

No abstract provided.

Towards Omni-Tomography -- Grand Fusion Of Multiple Modalities For Simultaneous Interior Tomography, Ge Wang, Jie Zhang, Hao Gao, Victor Weir, Hengyong Yu, Wenxiang Cong, Xiaochen Xu, Haiou Shen, James Bennett, Mark Furth, Yue Wang, Michael Vannier

Radiology Faculty Publications

We recently elevated interior tomography from its origin in computed tomography (CT) to a general tomographic principle, and proved its validity for other tomographic modalities including SPECT, MRI, and others. Here we propose "omni-tomography", a novel concept for the grand fusion of multiple tomographic modalities for simultaneous data acquisition in a region of interest (ROI). Omni-tomography can be instrumental when physiological processes under investigation are multi-dimensional, multi-scale, multi-temporal and multi-parametric. Both preclinical and clinical studies now depend on in vivo tomography, often requiring separate evaluations by different imaging modalities. Over the past decade, two approaches have been used for multimodality …

06-29-2012 Swosu Professor Presents Paper At International Entomologist Conference, Southwestern Oklahoma State University

THE BARK ARCHIVE 2012

SWOSU Bernhardt Professor of Biology Dr. Peter Grant of Weatherford recently presented a paper at an international entomologist conference in Japan.

Cyclic Di-Gmp Phosphodiesterases Rmda And Rmdb Are Involved In Regulating Colony Morphology And Development In Streptomyces Coelicolor. Journal Of Bacteriology, Travis D. Hull, Min-Hyung Ryu, Matthew J. Sullivan, Ryan C. Johnson, Nikola T. Klena, Robert M. Gelger, Mark Gomelsky, Jennifer A. Bennett

Biology and Earth Science Faculty Scholarship

Cyclic dimeric GMP (c-di-GMP) regulates numerous processes in Gram-negative bacteria, yet little is known about its role in Gram-positive bacteria. Here we characterize two c-di-GMP phosphodiesterases from the filamentous high-GC Gram-positive actinobacterium Streptomyces coelicolor, involved in controlling colony morphology and development. A transposon mutation in one of the two phosphodiesterase genes, SCO0928, hereby designated rmdA (regulator ofmorphology and development A), resulted in decreased levels of spore-specific gray pigment and a delay in spore formation. The RmdA protein contains GGDEF-EAL domains arranged in tandem and possesses c-di-GMP phosphodiesterase activity, as is evident from in vitro enzymatic assays using the purified protein. …

An Analysis Of The Myocardial Transcriptome In A Mouse Model Of Cardiac Dysfunction With Decreased Cholinergic Neurotransmission, Ashbeel Roy, Aline Lara, Diogo Guimaraes, Rita Pires, Eneas R. Gomes, David E. Carter, Marcus V. Gomez, Silvia Guatimosim, Vania F. Prado, Marco A. M. Prado, Robert Gros

Anatomy and Cell Biology Publications

Autonomic dysfunction is observed in many cardiovascular diseases and contributes to cardiac remodeling and heart disease. We previously reported that a decrease in the expression levels of the vesicular acetylcholine transporter (VAChT) in genetically-modified homozygous mice (VAChT KDHOM) leads to decreased cholinergic tone, autonomic imbalance and a phenotype resembling cardiac dysfunction. In order to further understand the molecular changes resulting from chronic long-term decrease in parasympathetic tone, we undertook a transcriptome-based, microarray-driven approach to analyze gene expression changes in ventricular tissue from VAChT KDHOM mice. We demonstrate that a decrease in cholinergic tone is associated with alterations in gene expression …

Dithiol-Based Compounds Maintain Expression Of Antioxidant Protein Peroxiredoxin 1 That Counteracts Toxicity Of Mutant Huntingtin, Andrea Pitts, Kyle Dailey, Jordan T. Newington, Andrew Chien, Robert Arseneault, Tyler Cann, Leslie M. Thompson, Robert C. Cumming

Paediatrics Publications

Mitochondrial dysfunction and elevated reactive oxygen species are strongly implicated in both aging and various neurodegenerative disorders, including Huntington disease (HD). Because reactive oxygen species can promote the selective oxidation of protein cysteine sulfhydryl groups to disulfide bonds we examined the spectrum of disulfide-bonded proteins that were specifically altered in a HD context. Protein extracts from PC12 cells overexpressing the amino-terminal fragment of the Huntingtin (Htt) protein with either a nonpathogenic or pathogenic polyglutamine repeat (Htt-103Q) were resolved by redox two-dimensional PAGE followed by mass spectrometry analysis. Several antioxidant proteins were identified that exhibited changes in disulfide bonding unique to …

Anti-Neoplastic Activity Of Two Flavone Isomers Derived From Gnaphalium Elegans And Achyrocline Bogotensis, Christan M. Thomas, Robert C. Wood Iii, Jarrett E. Wyatt, Morgan H. Pendleton, Ruben D. Torrenegra, Oscar E. Rodriguez, Sam Harirforoosh, Maria Ballester, Janet Lightner, Koyamangalath Krishnan, Victoria P. Ramsauer

Chemistry and Physics Faculty Articles

Over 4000 flavonoids have been identified so far and among these, many are known to have antitumor activities. The basis of the relationships between chemical structures, type and position of substituent groups and the effects these compounds exert specifically on cancer cells are not completely elucidated. Here we report the differential cytotoxic effects of two flavone isomers on human cancer cells from breast (MCF7, SK-BR-3), colon (Caco-2, HCT116), pancreas (MIA PaCa, Panc 28), and prostate (PC3, LNCaP) that vary in differentiation status and tumorigenic potential. These flavones are derived from plants of the family Asteraceae, genera Gnaphalium and Achyrocline …

The Structural Characterization Of Ga 2o 3-Na 2o-Cao-Zno-Sio 2 Bioactive Glasses, T. J. Keenan, A. W. Wren, A. Coughlan, M. M. Hall, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

The characterization of bioactive glasses in which zinc (Zn) has been incrementally replaced by gallium (Ga). © 2012 IEEE.

Increasing The Quantity Of Silver In Zinc-Based Glass Polyalkenoate Cement: Is There An Improvement In Antibacterial Efficacy?, A. Coughlan, S. M. Breed, C. Ashraf, J. A. Cardinale, M. M. Hall, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

Bone cements should have the ability to chemically bond to both bone and surgical metals, exhibit no chemical or thermal necrosis, and have no significant shrinkage or exotherm upon setting. Taking these properties into consideration, glass polyalkenoate cements (GPCs) have potential as bone cements. GPCs are formed by the reaction between an ion-leachable glass and an aqueous solution of polyacrylic acid (PAA) [1] and have proven antibacterial and cariostatic properties [2], which are related to their ability to release beneficial amounts of ions over time [3, 4]. The GPCs can be formulated to release ions that can have a therapeutic …

Localization And Functional Characterization Of The Rat Oatp4c1 Transporter In An In Vitro Cell System And Rat Tissues, Kuei-Ling Kuo, Haining Zhu, Patrick J. Mcnamara, Markos Leggas

Pharmaceutical Sciences Faculty Publications

The organic anion transporting polypeptide 4c1 (Oatp4c1) was previously identified as a novel uptake transporter predominantly expressed at the basolateral membrane in the rat kidney proximal tubules. Its functional role was suggested to be a vectorial transport partner of an apically-expressed efflux transporter for the efficient translocation of physiological substrates into urine, some of which were suggested to be uremic toxins. However, our in vitro studies with MDCKII cells showed that upon transfection rat Oatp4c1 polarizes to the apical membrane. In this report, we validated the trafficking and function of Oatp4c1 in polarized cell systems as well as its subcellular …

Anti-Neoplastic Activity Of Two Flavone Isomers Derived From Gnaphalium Elegans And Achyrocline Bogotensis, Christan M. Thomas, Robert C. Wood Iii, Jarrett E. Wyatt, Morgan H. Pendleton, Ruben B. Torrenegra, Oscar E. Rodriguez, Sam Harirforoosh, Maria Ballester, Janet Lightner, Koyamangalath Krishnan, Victoria P. Ramsauer

Pharmacy Faculty Articles and Research

Over 4000 flavonoids have been identified so far and among these, many are known to have antitumor activities. The basis of the relationships between chemical structures, type and position of substituent groups and the effects these compounds exert specifically on cancer cells are not completely elucidated. Here we report the differential cytotoxic effects of two flavone isomers on human cancer cells from breast (MCF7, SK-BR-3), colon (Caco-2, HCT116), pancreas (MIA PaCa, Panc 28), and prostate (PC3, LNCaP) that vary in differentiation status and tumorigenic potential. These flavones are derived from plants of the family Asteraceae, genera Gnaphalium and Achyrocline reputed …