Digital Commons Network^™

Emerging Treatments In Alzheimer’S Disease, Abigail Harrelson

Honors Projects

No abstract provided.

The Spinnaker [Vol. 33 No. 105], University Of North Florida

Spinnaker

Student newspaper for the UNF community.

Newsroom, Georgia Southern University

Newsroom (2006-2023)

• Georgia Southern University to Host Georgia Regional Astronomy Meeting Oct. 26-27

Reducing Unlawful Prescription Drug Promotion: Is The Public Health Being Served By An Enforcement Approach That Focuses On Punishment?, Vicki W. Girard

Georgetown Law Faculty Publications and Other Works

Despite the imposition of increasingly substantial fines and recently successful efforts to impose individual liability on corporate executives under the Park doctrine, punishing pharmaceutical companies and their executives for unlawful promotional activities has not been as successful in achieving compliance with the Federal Food, Drug, and Cosmetic Act (FD&C Act) as the protection of the public health demands. Over the past decade, the Food and Drug Administration (FDA) and the Department of Justice (DOJ) have shifted their focus from correction and compliance to a more punitive model when it comes to allegedly unlawful promotion of pharmaceuticals. The shift initially focused …

One-Pot Three-Step Thioconjugate Addition-Oxidation-Diels–Alder Reactions Of Ethyl Propiolate, C. Wade Downey, Smaranda Craciun, Christina A. Vivelo, Ana M. Neferu, Carly J. Mueller, Stephanie Corsi

Chemistry Faculty Publications

Ethyl propiolate undergoes one-pot three-step thioconjugate addition-oxidation-Diels–Alder cycloaddition when treated with a variety of thiols in the presence of catalytic base, meta-chloroperbenzoic acid, lithium perchlorate, and cyclopentadiene. The reaction of S‑aryl thiols is catalyzed by trialkylamines, and the reaction of aliphatic thiols requires catalytic alkoxide base. Yields of the major diastereomer of the conveniently functionalized bicyclic products range from 47 to 81% depending upon the thiol reactant, which compares favorably to yields observed when the entire synthesis is performed step by step.

Double-Stranded Rna-Dependent Protein Kinase Regulates The Motility Of Breast Cancer Cells, Mei Xu, Gang Chen, Siying Wang, Mingjun Liao, Jacqueline A. Frank, Kimberly A. Bower, Zhuo Zhang, Xianglin Shi, Jia Luo

Internal Medicine Faculty Publications

Double-stranded RNA (dsRNA)-dependent protein kinase (PKR) is an interferon-induced protein kinase that plays a central role in the anti-viral process. Due to its pro-apoptotic and anti-proliferative action, there is an increased interest in PKR modulation as an anti-tumor strategy. PKR is overexpressed in breast cancer cells; however, the role of PKR in breast cancer cells is unclear. The expression/activity of PKR appears inversely related to the aggressiveness of breast cancer cells. The current study investigated the role of PKR in the motility/migration of breast cancer cells. The activation of PKR by a synthesized dsRNA (PIC) significantly decreased the motility of …

The Colby Echo (2012-10-24), Colby College

The Colby Echo

Published by the students of Colby College since 1877, The Colby Echo is the weekly, editorially independent student-run newspaper of Colby College in Waterville, Maine. Published monthly, 1877-1886; semi-monthly, 1886-1897; and weekly, during the academic year, 1898-present.

Mapping A Complete Neural Population In The Retina, Olivier Marre, Dario Amodei, Nikhil Deshmukh, Kolia Sadeghi, Frederick Soo, Timothy E. Holy, Michael J. Berry

Open Access Publications

Recording simultaneously from essentially all of the relevant neurons in a local circuit is crucial to understand how they collectively represent information. Here we show that the combination of a large, dense multielectrode array and a novel, mostly automated spike-sorting algorithm allowed us to record simultaneously from a highly overlapping population of >200 ganglion cells in the salamander retina. By combining these methods with labeling and imaging, we showed that up to 95% of the ganglion cells over the area of the array were recorded. By measuring the coverage of visual space by the receptive fields of the recorded cells, …

Montana Kaimin, October 24, 2012, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

Spectral Cross Correlation As A Supervised Approach For The Analysis Of Complex Raman Datasets: The Case Of Nanoparticles In Biological Cells, Mark Keating, Franck Bonnier, Hugh Byrne

Articles

Spectral Cross-correlation is introduced as a methodology to identify the presence and subcellular distribution of nanoparticles in cells. Raman microscopy is employed to spectroscopically image biological cells previously exposed to polystyrene nanoparticles, as a model for the study of nano-bio interactions. The limitations of previously deployed strategies of K-means clustering analysis and principal component analysis are discussed and a novel methodology of Spectral Cross Correlation Analysis is introduced and compared with the performance of Classical Least Squares Analysis, in both unsupervised and supervised modes. The previous study demonstrated the feasibility of using Raman spectroscopy to map cells and identify polystyrene …

October 24, 2012, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.

Histology Slide, John Farber

The Medicine Forum

A 45 year old Black female without significant past medical history was admitted with insidious cough, dyspnea, nausea, vomiting, and progressive weight loss. She suddenly went into respiratory distress and succumbed to death. Autopsy subsequently showed widespread granulomatous disease. This slide of one of the lung lesions shows a noncaseating granulocyte with a fibrotic center surrounded by palisading histiocytes, consistent with a diagnosis of nodular sarcoma.

Cord Compression By Extramedullary Hematopoiesis In Polycythemia Vera, Lisa Reale, Steve Zrada, Jose Martinez

The Medicine Forum

A 73-year-old male with polycythemia vera and a history of prostate cancer presents to an outside hospital complaining of back pain of two months duration. He denied fevers, chills, night sweats, weight loss, lower extremity weakness and decreased sensation. Other than chronic constipation and urinary hesitancy, his review of systems was unremarkable. A spinal x-ray revealed a T12 vertebral fracture and the patient was transferred to Thomas Jefferson University Hospital for further management.

Three-Dimensional Ex Vivo System, Karen J. L. Burg, Chih-Chao Yang

Clemson Patents

Disclosed are three-dimensional (3D) systems as may be utilized for ex vivo tissue or cell growth and development. A system generally includes a base material and at least one wicking fiber embedded therein through which a liquid can be spontaneously drawn by capillary action. Wicking fibers can define a plurality of colinear channels along the exterior surface of the axial length of the fiber. Wicking fibers can be present in disclosed systems as individual fibers or in bundles. Disclosed systems can be useful in various scientific studies, including, but not limited to, drug discovery, vaccine development, cell biology studies, and …

Ua12/2/1 College Heights Herald, Vol. 88, No. 16, Wku Student Affairs

WKU Administration Documents

WKU campus newspaper reporting campus, athletic and Bowling Green, Kentucky news.

Phylogenomics And A Posteriori Data Partitioning Resolve The Cretaceous Angiosperm Radiation Malpighiales, Peter Stevens, Zhenxiang Xi, Brad Ruhfel, Hanno Schaefer, André Amorim, M. Sugumaran, Kenneth Wurdack, Peter Endress, Merran Matthews, Sarah Mathews, Charles Davis

Biology Department Faculty Works

The angiosperm order Malpighiales includes ∼16,000 species and constitutes up to 40% of the understory tree diversity in tropical rain forests. Despite remarkable progress in angiosperm systematics during the last 20 y, relationships within Malpighiales remain poorly resolved, possibly owing to its rapid rise during the mid-Cretaceous. Using phylogenomic approaches, including analyses of 82 plastid genes from 58 species, we identified 12 additional clades in Malpighiales and substantially increased resolution along the backbone. This greatly improved phylogeny revealed a dynamic history of shifts in net diversification rates across Malpighiales, with bursts of diversification noted in the Barbados cherries (Malpighiaceae), cocas …

Scaling Flow Path Processes To Fluvial Landscapes: An Integrated Field And Model Assessment Of Temperature And Dissolved Oxygen Dynamics In A River-Floodplain-Aquifer System, Ashley M. Helton, Geoffrey C. Poole, Robert A. Payn, Clemente Izurieta, Jack Arthur Stanford

Biological Sciences Faculty Publications

Biogeochemical cycling within river ecosystems is strongly influenced by geomorphic and hydrologic dynamics. To scale point observations of temperature and dissolved oxygen (DO) to a hydrologically complex and dynamic three-dimensional river-floodplain-aquifer system, we integrated empirical models of temperature and biotic oxygen utilization with a recently published hydrogeomorphic model. The hydrogeomorphic model simulates channel flow, floodplain inundation, and surface-subsurface water exchange on the 16 km(2) Nyack Floodplain, Middle Fork Flathead River, Montana, USA. Model results were compared to observed data sets of DO to test the hypothesis that complexity in spatiotemporal patterns of biogeochemistry emerges from a comparatively simple representation of …

Elimination Of The Vesicular Acetylcholine Transporter In The Forebrain Causes Hyperactivity And Deficits In Spatial Memory And Long-Term Potentiation, Amanda C. Martyn, Xavier De Jaeger, Ana C. Magalhaes, Rohit Kesarwani, Daniela F. Goncalves, Sanda Raulic, Monica S. Guzman, Michael F. Jackson, Ivan Izquierdo, John F. Macdonald, Marco A. M. Prado, Vania F. Prado

Anatomy and Cell Biology Publications

Basal forebrain cholinergic neurons, which innervate the hippocampus and cortex, have been implicated in many forms of cognitive function. Immunolesion-based methods in animal models have been widely used to study the role of acetylcholine (ACh) neurotransmission in these processes, with variable results. Cholinergic neurons have been shown to release both glutamate and ACh, making it difficult to deduce the specific contribution of each neurotransmitter on cognition when neurons are eliminated. Understanding the precise roles of ACh in learning and memory is critical because drugs that preserve ACh are used as treatment for cognitive deficits. It is therefore important to define …

The Utah Statesman, October 23, 2012, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

Phylogenomics And A Posteriori Data Partitioning Resolve The Cretaceous Angiosperm Radiation Malpighiales, Zhenxiang Xi, Brad R. Ruhfel, Hanno Schaefer, André M. Amorim, M. Sugumaran, Kenneth J. Wurdack, Peter K. Endress, Merran L. Matthews, Peter F. Stevens, Sarah Mathews, Charles C. Davis

Faculty Publications

The angiosperm order Malpighiales includes ∼16,000 species and constitutes up to 40% of the understory tree diversity in tropical rain forests. Despite remarkable progress in angiospermsystematics during the last 20 y, relationships within Malpighiales remain poorly resolved, possibly owing to its rapid rise during the mid-Cretaceous. Using phylogenomic approaches, including analyses of 82 plastid genes from 58 species, we identified 12 additional clades in Malpighiales and substantially increased resolution along the backbone. This greatly improved phylogeny revealed a dynamic history of shifts in net diversification rates across Malpighiales, with bursts of diversification noted in the Barbados cherries(Malpighiaceae), cocas (Erythroxylaceae), and …

More Than 1000 Ultraconserved Elements Provide Evidence That Turtles Are The Sister Group Of Archosaurs, Nicholas G. Crawford, Brant C. Faircloth, John E. Mccormack, Robb T. Brumfield, Kevin Winker, Travis C. Glenn

Faculty Publications

We present the first genomic-scale analysis addressing the phylogenetic position of turtles, using over 1000 loci from representatives of all major reptile lineages including tuatara. Previously, studies of morphological traits positioned turtles either at the base of the reptile tree or with lizards, snakes and tuatara (lepidosaurs), whereas molecular analyses typically allied turtles with crocodiles and birds (archosaurs). A recent analysis of shared microRNA families found that turtles are more closely related to lepidosaurs. To test this hypothesis with data frommany single-copy nuclear loci dispersed throughout the genome, we used sequence capture, high-throughput sequencing and published genomes to obtain sequences …

Cosm News, Georgia Southern University

College of Science & Mathematics: News & Publications (2012-2022)

• 2012-2013 COSM Research Award Winners

The Advocate, October 23, 2012, Minnesota State University Moorhead

The Advocate

No abstract provided.

Materials And Methods For Prevention And Treatment Of Rna Viral Diseases, Shyam S. Mohapatra, Aruna K. Behera

USF Patents

The subject invention concerns a method of inhibiting an RNA virus infection within a patient by increasing the amount of 2-5 oligoadenylate synthetase (2-5 AS) activity within the patient. Preferably, the preventative and therapeutic methods of the present invention involve administering a nucleotide encoding 2-5 AS, or at least one catalytically active fragment thereof, such as the p40, p69, p100 subunits, to a patient in need thereof. The present inventors have determined that overexpression of 2-5AS causes a reduction in epithelial cell damage, reduction in infiltration of mononuclear cells in the peribronchiolar and perivascular regions, and reduction in thickening of …

The Daily Gamecock, Tuesday, October 23, 2012, University Of South Carolina, Office Of Student Media

October

No abstract provided.

Predictability Of Biomass Burning In Response To Climate Changes, A.-L. Daniau, Megan Walsh

All Faculty Scholarship for the College of the Sciences

Climate is an important control on biomass burning, but the sensitivity of fire to changes in temperature and moisture balance has not been quantified. We analyze sedimentary charcoal records to show that the changes in fire regime over the past 21,000 yrs are predictable from changes in regional climates. Analyses of paleo- fire data show that fire increases monotonically with changes in temperature and peaks at intermediate moisture levels, and that temperature is quantitatively the most important driver of changes in biomass burning over the past 21,000 yrs. Given that a similar relationship between climate drivers and fire emerges from …

Capture And Characterization Of Dioxygen Reactive Intermediates In Cyp51 Catalysis, Gareth Kent Jennings

Theses and Dissertations

The cytochromes P450 (CYPs) are a superfamily of biological catalysts that are ubiquitous throughout the biological domain. CYPs are heme-b containing monooxygenases which oxidize substrates with the help of accessory redox partners. CYP substrates include endogenous compounds required for many biological functions and homeostasis, such as steroids, as well as the majority of clinically used drugs and environmental xenobiotics. The majority of studies that have been performed to date are on P450cam (CYP101) from Pseudomonas putida. Of the numerous reactions catalyzed by CYPs, unactivated carbon-carbon bond cleavage, is one of particular versatility. Being unique in their catalytic mechanisms, the C-C …

The Current Volume 23 : Issue 10, Nova Southeastern University

Student Newspapers

No abstract provided.

Wetland And Riparian Management Plan, Alcalde/Velarde Valley, Upper Rio Grande, New Mexico, Jessica C. Johnston

Water Resources Professional Project Reports

In New Mexico, riverine wetlands are generally associated with riparian areas found in the floodplains or once floodplains, of the Rio Grande and associated tributaries. Riverine wetlands are supported with water provided by over bank flow from the river, connection to the shallow groundwater, and/or acequia systems. Wetland and riparian areas are impacted by land uses, hydromodification and other activities that occur within a watershed. Wetland and riparian areas play an important role within a watershed by providing many beneficial environmental functions. This paper examines watershed issues affecting the quality of remaining wetland and riparian resources in the valley and …

The George-Anne, Georgia Southern University

The George-Anne

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