Digital Commons Network^™

"Probing The Transition State Region In Catalytic Co Oxidation On Ru" Data Files, H. Öström, H. Öberg, H. Xin, Jerry L. Larue, M. Beye, M. Dell'angela, J. Gladh, M. L. Ng, J. A. Sellberg, S. Kaya, G. Mercurio, D. Nordlund, W. F. Schlotter, A. Föhlisch, M. Wolf, W. Wurth, M. Persson, J. K. Nørskov, F. Abild-Pedersen, H. Ogasawara, L. G. M. Pettersson, A. Nilsson

Biology, Chemistry, and Environmental Sciences Faculty Data Sets

Femtosecond x-ray laser pulses are used to probe the CO oxidation reaction on Ru initiated by an optical laser pulse. On a timescale of a few hundred femtoseconds, the optical laser pulse excites motions of CO and O on the surface allowing the reactants to collide and, with a transient close to a picosecond (ps), new electronic states appear in the O K-edge x-ray absorption spectrum. Density functional theory calculations indicate that these result from changes in the adsorption site and bond-formation between CO and O with a distribution of OC—O bond lengths close to the transition state (TS). After …

Carter Earns Physiology Postdoctoral Research Award, Staff

Browse All News

No abstract provided.

Paleological And Ecological Impacts Of Virus Silicification, James Robert Laidler

Dissertations and Theses

Silicification of organisms in silica-depositing environments can impact both their ecology and their presence in the fossil record. Although microbes have been silicified under laboratory and environmental conditions, viruses had not been, prior to this work. Bacteriophage T4 was successfully silicified under laboratory conditions that closely simulated those found in silica-depositing hot springs. Virus morphology was maintained during the short period of silicification (48 hours), and a clear elemental signature of silicon and phosphorus was detected by energy-dispersive X-ray spectrophotometry (EDX). However, the EDX signature of silicified virus was not sufficiently distinct from that of cell membrane or phosphate minerals …

Alfalfa And The Environment, Don Ball

Kentucky Alfalfa and Stored Forage Conference

We live in a society in which many people don’t understand or appreciate agriculture as much as they really should. After all, only about 2% of the population of the United States is involved in agriculture, so most people don’t know much about it. Furthermore, most don’t spend much time thinking about it. Forage crops, including alfalfa, are especially under-appreciated because forage is not consumed directly by humans (alfalfa sprouts being a minor exception).

A Bioinformatics Approach To Revealing The Genetic Basis For Host Range Specificity, Hayley A. Norian

James Madison Undergraduate Research Journal (JMURJ)

Bacteriophages, or phages, are viruses that infect bacteria. Mycobacteriophages are bacteriophages that specifically infect the genus Mycobacterium. This genus of bacteria includes human pathogens such as Mycobacterium tuberculosis, Mycobacterium leprae and Mycobacterium ulcerans, which cause tuberculosis, leprosy and Buruli ulcer, respectively. The full genome sequences of 654 mycobacteriophages are currently available. Collectively, these 654 phages encode 69,581 genes. Only 20.25% of these genes have at least one known homologue in NCBI, the National Center for Biotechnology Information, leaving roughly 80% of all known mycobacteriophage genes without even a predicted function. Bacteriophages are highly host-specific and typically only infect a small …

Red Meat, Our Health And Alfalfa--Separating Scientific Fact From Opinions, Policy, Politics, And Bureaucracy, Peter Ballerstedt

Kentucky Alfalfa and Stored Forage Conference

The general public is becoming increasingly aware of the failure of the official nutritional policy of United States and other countries. Books like Good Calories, Bad Calories: Fats, Carbs, and the Controversial Science of Diet and Health (Taubes, 2008), Why We Get Fat and What To Do About It (Taubes, 2011) and The Big Fat Surprise: Why Butter, Meat and Cheese Belong in a Healthy Diet (Teicholz, 2014) have exposed the disconnect between nutrition science and nutrition policy, and have told the story of how we’ve come to this point in history.

The Fierce Green Fire: Vol 5 Issue 15, Wofford College Environmental Studies Program

The Fierce Green Fire

No abstract provided.

Winthrop Senior Ian Deas Is One Of Four $2,000 Sunbelt Rentals Scholarship Recipients, Winthrop University

Winthrop News 2015

• The scholarship, in the amount of $2,000, is for Deas to use in his senior year.
• Deas is a biology major from Charleston, South Carolina.

2015 Minnesota Undergraduate Scholars Posters At St. Paul Abstract Booklet, Minnesota Undergraduate Scholars

Posters at St. Paul

Abstract booklet from the second Minnesota Undergraduate Scholars Posters at St. Paul event.

The multi-disciplinary poster presentation was held on February 26, 2015 from 2:00-4:00 PM in the Veterans Service Building. Participating campuses included: Bemidji State University; Inver Hills Community College; Metropolitan State University; Minneapolis Community and Technical College; Minnesota State University, Mankato; Minnesota State University, Moorhead; Rochester Community and Technical College; St. Cloud State University; Southwest Minnesota State University and Winona State University.

The Setonian, February 26, 2015, Seton Hall University

2015

No abstract provided.

Otter Realm, February 26, 2015, California State University, Monterey Bay

The Otter Realm

We Unplug to Live -- Finding the Divide -- What You Otter Be Doing February 26 - March 11 -- Rate Your (Future) Professors: Students Evaluate Potential HCOM Professors -- Campus Climate Survey: Are You Being Represented -- Parking Crisis Or Identity Crisis? Views About Parking At CSUMB -- KAPPA Week: KAPPA ALPHA PSI Fraternity Is Hosting Their First Dance Of The Year, Shimmy Like A Nupe, On Friday, Feb. 27 --CSUMB, Seaside And African American History - Part II -- AS Elections: Opportunities Abound: The Main Focus Of AS And How You Can Be A Part Of The Change …

Computer Modeling The Incursion Patterns Of Marine Invasive Species, Matthew W. Johnston

HCNSO Student Theses and Dissertations

Abstract Not Available.

Carboxyl-Terminal Truncations Alter The Activity Of The Human Α-Galactosidase A, Mariam Meghdari, Nicholas Gao, Abass Abdullahi, Erin Stokes, David H. Calhoun

Publications and Research

Fabry disease is an X-linked inborn error of glycolipid metabolism caused by deficiency of the human lysosomal enzyme, α-galactosidase A (αGal), leading to strokes, myocardial infarctions, and terminal renal failure, often leading to death in the fourth or fifth decade of life. The enzyme is responsible for the hydrolysis of terminal α-galactoside linkages in various glycolipids. Enzyme replacement therapy (ERT) has been approved for the treatment of Fabry disease, but adverse reactions, including immune reactions, make it desirable to generate improved methods for ERT. One approach to circumvent these adverse reactions is the development of derivatives of the enzyme with …

Daily Eastern News: Feburary 26, 2015, Eastern Illinois University

February

No abstract provided.

The Pan American (2015-02-26), Andrew Vera, May Ortega

UTPA Archives - The Pan American Newspaper

Vol. 71, No. 20

University Of Northern Iowa Graduate Council Minutes, February 26, 2015, University Of Northern Iowa. Graduate Council.

Documents - Graduate Council

Meeting minutes from the Graduate Council of the University of Northern Iowa.

Panther - February 2015 - Vol. Xcv No. 4, Prairie View A&M University

PV Panther Newspapers

No abstract provided.

A Blended Professional Development Program To Help A Teacher Learn To Provide One-To-One Scaffolding, Brian Robert Belland, Ryan Burdo, Jiangyue Gu

Instructional Technology and Learning Sciences Faculty Publications

Argumentation is central to instruction centered on socio-scientific issues (Sadler & Donnelly in International Journal of Science Education, 28(12), 1463–1488, 2006. doi:10.1080/09500690600708717). Teachers can play a big role in helping students engage in argumentation and solve authentic scientific problems. To do so, they need to learn one-to-one scaffolding—dynamic support to help students accomplish tasks that they could not complete unaided. This study explores a middle school science teacher’s provision of one-to-one scaffolding during a problem-based learning unit, in which students argued about how to optimize the water quality of their local river. The blended professional development program incorporated three 1.5-h …

The Infrared Spectrum Of The He-C2d2 Complex, N. Moazzen-Ahmadi, A. R. W. Mckellar, Berta Fernandez, David Farrelly

Chemistry and Biochemistry Faculty Publications

Spectra of the helium-acetylene complex are elusive because this weakly bound system lies close to the free rotor limit. Previously, limited assignments of He–C2D2 transitions in the R(0) region of the ν3 fundamental band (≈2440 cm⁻¹) were published. Here, new He–C2D2 infrared spectra of this band are obtained using a tunable optical parametric oscillator laser source to probe a pulsed supersonic slit jet expansion from a cooled nozzle, and the analysis is extended to the weaker and more difficult P(1) and R(1) regions. A term value approach is used to obtain a consistent set of “experimental” energy levels. …

Promoting Genome Stability Via Multiple Dna Repair Pathways, Scott Cukras

USF Tampa Graduate Theses and Dissertations

Maintaining genome integrity is indispensible for cells to prevent and limit accruement of deleterious mutations and to promote viable cell growth and proliferation. Cells possess a myriad of mechanisms to detect, prevent and repair incurred cellular damage. Here we discuss various proteins and their accompanying cellular pathways that promote genome stability. We first investigate the NEDD8 protein and its role in promoting homologous recombination repair via multiple Cullin E3 ubiquitin ligases. We provide specific mechanisms through which, UBE2M, an E2 conjugating enzyme, neddylates various Cullin ligases to render them catalytically active to degrade their substrates by the proteasome. We show …

5-Aminolevulinate Synthase: Characterization Of The Enzymatic Mechanism, Reaction Selectivity, And Structural Plasticity, Bosko M. Stojanovski

USF Tampa Graduate Theses and Dissertations

5-Aminolevulinate synthase (ALAS) catalyzes the pyridoxal 5'-phosphate (PLP)-dependent condensation between glycine and succinyl-CoA to generate coenzyme A (CoA), CO₂, and 5-aminolevulinate (ALA). The chemical mechanism of this reaction, which represents the first and regulated step of heme biosynthesis in mammals, involves the formation of a short-lived glycine quinonoid intermediate and an unstable 2-amino-3-ketoadipate intermediate. Using liquid chromatography coupled with tandem mass spectrometry to analyze the products from the reaction of murine erythroid ALAS (mALAS2) with O-methylglycine and succinyl-CoA, we directly identified the chemical nature of the inherently unstable 2-amino-3-ketoadipate intermediate, which predicates the glycine quinonoid species as …

The Murray Ledger And Times, February 26, 2015, The Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

The Inkwell, Armstrong State University

The Inkwell

No abstract provided.

Lanthorn, Vol. 49, No. 47, February 26, 2015, Grand Valley State University

Volume 49, July 7, 2014 - June 1, 2015

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

The Missouri Miner, Ffebruary 26, 2015

The Missouri Miner Newspaper

No abstract provided.

Reproductive Health Seeking Behaviors Among Female University Students: An Action Oriented Exploratory Study, Robin Emily Mowson

USF Tampa Graduate Theses and Dissertations

The focus of this research was to: 1) study the perceptions of female students attending the university Student Health Center, concerning available services, 2) learn how they describe their decisions to obtain care, and 3) identify perceived barriers to reproductive health care and contraception. This exploratory study used a mixed-methods approach that included clinic public-space observations, interviews with health care providers and staff at Student Health Services (SHS), surveys distributed to clients of the campus clinic, and in-depth interviews to contextualize emergent themes. Topics addressed included sexual health behaviors and perceptions, influence of peers and partners, the propagation of health …

Medicalizing Gutom Hunger, Diet, And Beriberi During The American Period, Theresa; Department Ventura

Philippine Studies: Historical and Ethnographic Viewpoints

Thisarticle looks at American responses to food scarcity in the colonial Philippines. Dismissive of hunger and starvation in the early occupation, Americans initially ascribed ill health to poorly chosen foods like rice. Labor unrest, crop failures following Taal Volcano’s 1911 eruption, and José Albert’s identification of infantile beriberi, however, forced American administrators, doctors, and agriculturalists to confront scarcity in several ways. First, “corn campaigns” sought to enhance rice-based diets with corn. Second, research linking beriberi to mechanically milled rice led to vitamin B supplementation campaigns. However, the medicalization of hunger obscured the root causes of scarcity, which American rule exacerbated.KEYWORDS: …

A Revision Of The Genus Conicofrontia Hampson (Lepidoptera, Noctuidae, Apameini, Sesamiina), With Description Of A New Species: New Insights From Morphological, Ecological And Molecular Data, Bruno Le Ru, Claire Capdevielle-Dulac, Desmond Conlong, Beatrice Pallangyo, Johnnie Van Den Berg, George Ong'amo, Gael J. Kergoat

All Peer-Reviewed Publications

The aim of this study was to review the species of Conicofrontia Hampson, a small genus of noctuid stem borers (Noctuidae, Apameini) that is distributed in East and Southeastern Africa. We review the morphology of species in this group and provide new diagnoses and ecological data for five species. The following taxonomic changes are proposed: Hygrostola dallolmoi (Berio, 1973) (= Conicofrontia dallolmoi Berio, 1973) comb. n. and Conicofrontia bipartita (Hampson, 1910) (= Phragmatiphila bipartita Hampson, 1910) comb. n., stat. rev. One new species is also described: C. lilomwa, sp. n. from Tanzania. Wing patterns as well as male and female …

Kenyon Collegian - February 26, 2015

The Kenyon Collegian

No abstract provided.

Cyanobacteria, Algae And Microfungi Present In Biofilm From Božana Cave (Serbia), Slađana Popović, Gordana Subakov Simić, Miloš Stupar, Nikola Unković, Dragana Predojević, Jelena Jovanović, Milica Ljaljević Grbić

International Journal of Speleology

Phototrophic microorganisms (cyanobacteria and algae) and microfungi, were identified from biofilm on the walls of the entrance of BožanaCavein west Serbia. Temperature, relative humidity and light intensity were measured, and chlorophyll a content determined. Light intensity differed from the entrance inwards. However, Chl a content was not proportional to light intensity, instead it was positively correlated to biofilm weight. Biofilm samples from two sites were also observed using a scanning electron microscope. Coccoid forms of cyanobacteria were abundant at the sampling site with the lowest light intensity, while members of the order Nostocales were predominant at the sampling site with …