Digital Commons Network^™

Soil Nitrogen Transformations Under Elevated Atmospheric Co2 And O3 During The Soybean Growing Season, Engil Isadora Pujol Pereira, Haegeun Chung, Kate Scow, Michael J. Sadowsky, Chris Van Kessel

School of Earth, Environmental, & Marine Sciences Faculty Publications

We investigated the influence of elevated CO2 and O3 on soil N cycling within the soybean growing season and across soil environments (i.e., rhizosphere and bulk soil) at the Soybean Free Air Concentration Enrichment (SoyFACE) experiment in Illinois, USA. Elevated O3 decreased soil mineral N likely through a reduction in plant material input and increased denitrification, which was evidenced by the greater abundance of the denitrifier gene nosZ. Elevated CO2 did not alter the parameters evaluated and both elevated CO2 and O3 showed no interactive effects on nitrifier and denitrifier abundance, nor on total and mineral N concentrations. These results …

Flow Regime Identification In A Bubble Column Via Nuclear Gauge Densitometry And Chaos Analysis, S. Nedeltchev, A. Shaikh, Muthanna H. Al-Dahhan

Chemical and Biochemical Engineering Faculty Research & Creative Works

The Bubble Column Performance Can Change Significantly as a Result of Flow Regime Change. Since Reactor Volume Productivity, Mass and Heat Transfer as Well as Mixing Are Affected by the Prevailing Flow Regime, It is Very Important to Know How to Identify It. in This Work, Flow Regime Identification Was Performed on the Basis of the Kolmogorov Entropy (KE) Algorithm Applied to Nuclear Gauge Densitometry Data. in Addition, the Average Cycle Time Was Used for Validation of the Results. Three Transition Velocities Were Identified that Delineated the Boundaries of the Three Main Hydrodynamic Regimes. the First Two Transition Points Were …

Comparison Of Web Of Science And Scopus Impact Factors Of Indian Journals, Aragudige Nagaraja, M. Vasanthakumar

Library Philosophy and Practice (e-journal)

Database coverage of Indian journals in Web of Science and Scopus were identified. Impact factor from Journal Citation Reports 2008. SCImago journal rank indicator of Indian journals was tabulated and compared. It was found that Scopus covers more impact factor-tracked Indian journals, while Web of Science covers 45 Indian journals with impact factor.

Diversity Of Agromyzidae And Associated Hymenopteran Parasitoid Species In The Afrotropical Region: Implications For Biological Control, Robert Musundire, Adenirin Chabi-Olaye, Bernhard Löhr, Kerstin Krüger

All Peer-Reviewed Publications

Agromyzidae (Diptera) is a family with many species of economic importance on agricultural plants. However, many species are attacked by hymenopteran parasitoids which are known to be habitat rather than species specific. In the Afrotropical region, information about agromyzid and parasitoid diversity in different habitats is scattered in literature. Our aim was to assemble this dispersed information and discuss future needs of biological control efforts against invasive agromyzids in the Afrotropics. From published information, 581 agromyzid records comprising 302 species from 20 genera were recorded from 48 plant families. Parasitoids (90 records) were associated only with 20 agromyzid species belonging …

Effect Of Infection By Metarhizium Anisopliae (Hypocreales: Clavicipitaceae) On The Feeding And Oviposition Of The Pea Leafminer Liriomyza Huidobrensis (Diptera: Agromyzidae) On Different Host Plants, L. N. Migiro, N. K. Maniania, A. Chabi-Olaye, A. Wanjoya, J. Vandenberg

All Peer-Reviewed Publications

The effect of fungal infection by Metarhizium anisopliae on feeding and oviposition of adult Liriomyza huidobrensis was examined on three host plants, faba bean (Vicia faba), French bean (Phaseolus vuklgaris) and snow pea (Pisum sativum) in the laboratory. Flies were contaminated with dry conidia and allowed to feed and oviposit on the different host plants. Mortality in L. huidobrensis varied between 14% and 20% in the controls and between 77% and 100% in fungal treatments 120h post-infection for the three host plants. L. huidobrensis made more punctures (47.3-52.6cm-2) in the control than in the fungal treatments (23.1-26.9cm-2) for the three …

Open Access, Institutional Repositories, And Scholarly Publishing: The Role Of Librarians In South Eastern Nigeria, M. O. Okoye, A. N. Ejikeme

Library Philosophy and Practice (e-journal)

The study explored the extent of open access, institutional repositories, and scholarly publishing of academic librarians. Population of the study was 67. It comprised academic librarians in University of Nigeria (50), Enugu State University of Technology (6), Michael Okpara University of Agriculture (6), and Anambra State University (5). 52 (77. 61%) copies of the questionnaire were returned and 45 (86.54%) were found usable. Data were collected by a structured questionnaire. The questionnaire contained 38 questions which were divided into six sections. Responses from respondents were analyzed using percentages and mean scores. Findings of the study showed that librarians were aware …

Efficacy Of Cotton Expressing Pyramided Bacillus Thuringiensis Insecticidal Proteins Against Lepidopteran Pest, D. S. Akin, S. D. Stewart, M. B. Layton, J. A. Mills

Midsouth Entomologist

Laboratory, greenhouse, and field experiments were conducted to evaluate the efficacy of cotton (Gossypium hirsutum L.) expressing two proteins of Bacillus thuringiensis Berliner (‘Bollgard II’ expressing Cry1Ac + Cry2Ab, Monsanto Company, St. Louis, MO) against economically important lepidopteran pests in Mississippi. Results from leaf assays conducted in the laboratory indicate that Bollgard II cotton caused significantly higher mortality and growth inhibition of Helicoverpa zea (Boddie), Heliothis virescens (F.), Spodoptera frugiperda (J.E. Smith), S. exigua (Hubner), Pseudoplusia includes (Walker), and Estigmene acrea (Drury) than Cry1Ac onlyand non-Bt cotton. In greenhouse studies, Bollgard II cotton provided significantly enhanced protection against common defoliating …

Apotransferrin Protects Cortical Neurons From Hemoglobin Toxicity, Jing Chen-Roetling, Lifen Chen, Raymond F. Regan

Department of Emergency Medicine Faculty Papers

The protective effect of iron chelators in experimental models of intracerebral hemorrhage suggests that nonheme iron may contribute to injury to perihematomal cells. Therapy with high affinity iron chelators is limited by their toxicity, which may be due in part to sequestration of metals in an inaccessible complex. Transferrin is unique in chelating iron with very high affinity while delivering it to cells as needed via receptor-mediated endocytosis. However, its efficacy against iron-mediated neuronal injury has never been described, and was therefore evaluated in this study using an established cell culture model of hemoglobin neurotoxicity. At concentrations similar to that …

Sola In Nature, Yeonhee Choi

Theses

Sola in Nature is an invitation to encounter the internal human experience inspired by nature. Each photograph exhibits different sensibilities; exploring what the psychological self represents in nature through the images. The human mind is like air. We cannot smell, hold, and see the air, but we can feel it when we breathe. We cannot live without it. This thesis transcribes personal experience into a photographic spectacle that provides the public access, with which to examine the sophisticated mind as reflection of the self. Nature is, in this work, considered not only as spiritual existence but also as the psychological …

Pathogenesis, Diagnosis And Management Of Primary Melanoma Of The Colon, Umair Khalid, Taimur Saleem, Ayesha Mallick Imam, Muhammad Rizwan Khan

Department of Surgery Docs

Background:Melanomas within the alimentary tract are usually metastatic in origin. On the other hand, primary melanomas of the gastrointestinal tract are relatively uncommon. There are several published reports of melanomas occurring in the esophagus, stomach, small bowel, and anorectum. The occurrence of primary melanoma of the colon has, however, only been rarely reported. The optimum modus operandi for the management of primary colonic melanoma remains nebulous due to the limited number of reports in literature.

Methods:

A comprehensive search of Medline, Cochrane and Highwire was performed using the following keywords: 'melanoma', 'malignant melanoma', 'primary melanoma', 'colon', 'gastrointestinal tract', 'alimentary …

The Current Volume 21 : Issue 19, Nova Southeastern University

Student Newspapers

No abstract provided.

Characteristics Of The Menstrual Cycle After Discontinuation Of Oral Contraceptives, Claudia L. Nassaralla, Joseph B. Stanford, Diane Daly, Mary Schneider, Karen C. Schliep, Richard J. Fehring

College of Nursing Faculty Research and Publications

Background: Menstrual cycle function may continue to be altered after discontinuation of oral contraceptives (OC). Few studies have been published on the effects of recent OC use on menstrual cycle parameters; none have examined characteristics of the menstrual flow or the quality of cervical mucus. The purpose of this retrospective matched cohort study is to assess biomarkers of the menstrual cycle after discontinuation of OCs.

Methods: Among a sample of women who daily recorded observations of menstrual cycle biomarkers, 70 women who had recently discontinued OCs were randomly matched by age and parity with 70 women who had …

Interactions: Newsletter Of The Wildli Fe Society Wildlife Damage Management Working Group, Volume 16 Issue 1, Winter 2010

TWS Wildlife Damage Management Working Group Newsletter

UPDATE ON JWM, WSB, AND, A CALL TO THE MEMBERSHIP FOR COMMITTEE PARTICIPATION -- Gary San Julian, Chair WDMWG
WHAT WILDLIFE DAMAGE MANAGERS NEED TO KNOW ABOUT WHITE-NOSE SYNDROME IN BATS
WORKING GROUP COMMITTEE REPORT -- PUBLICATION RATES OF WILDLIFE DAMAGE MANAGEMENT MANUSCRIPTS IN THE JOURNAL OF WILDLIFE MANAGEMENT
THE 2010 WILD PIG CONFERENCE
Human–Wildlife Interactions (formerly Human–Wildlife Conflicts) announces creation of Editorial Board
EFFECTIVENESS OF A HUMANE, NON-LETHAL TECHNIQUE FOR RACCOON REMOVAL FROM HUMAN-OCCUPIED STRUCTURES IN URBAN AREAS
MINUTES FROM THE SEPTEMBER 2009 WILDLIFE DAMAGE MANAGEMENT WORKING GROUP ANNUAL MEETING
CONFERENCE ANNOUNCEMENT -- 24TH VERTEBRATE PEST CONFERENCE
TWS LEADERSHIP …

Promoting Active Urban Aging: A Measurement Approach To Neighborhood Walkability For Older Adults, Rachael L. Weiss, Juliana A. Maantay, Marianne Fahs

Cities and the Environment (CATE)

Understanding the role of the built environment on physical activity behavior among older adults is an important public health goal, but evaluating these relationships remains complicated due to the difficulty of measuring specific attributes of the environment. As a result, there is conflicting evidence regarding the association between perceived and objectively measured walkability and physical activity among urban-dwelling older adults. This suggests that both actual environmental features and perceptions of these attributes influence walking behavior. The purpose of this pilot project is to create an Objective Walkability Index (OWI) by census block using a Geographic Information System (GIS) and supplement …

Entropy And Society: Can The Physical/Mathematical Notions Of Entropy Be Usefully Imported Into The Social Sphere?, Philip J. Davis

Journal of Humanistic Mathematics

The notion of entropy was first introduced in the 1850's by Rudolf Clausius in the context of thermodynamics. Focusing on the meaning that an increase of entropy means an increase of disorder, dissipation and decay, subsequent generations of authors have imported the notion into practically every area of intellectual discussion. This paper will mention numerous definitions of entropy and consider the virtues and ambiguities of the concept of entropy. It will pass judgement on some old and new interpretations of certain current societal developments that have been made along entropic lines and that conflict with the current Western social ethos.

Urban Environmental Education From A Social-Ecological Perspective: Conceptual Framework For Civic Ecology Education, Keith G. Tidball, Marianne E. Krasny

Cities and the Environment (CATE)

A variety of environmental education practices are emerging to address the needs of an increasingly urban population. Drawing from social-ecological systems and social learning theory, we propose a conceptual framework to stimulate research questions in urban environmental education. More specifically, our conceptual framework focuses on environmental education programs that are nested within and linked to community-based stewardship or civic ecology practices, such as community forestry, streamside restoration, and community gardening. It suggests ways in which educational programs, stewardship practice, and other social-ecological system components and processes interact through feedback loops and other mechanisms, as well as means by which urban …

Assessing The Effects Of The Urban Forest Restoration Effort Of Milliontreesnyc On The Structure And Functioning Of New York City Ecosystems, P. Timon Mcphearson, Michael Feller, Alexander Felson, Richard Karty, Jacqueline W.T. Lu, Matthew I. Palmer, Tim Wenskus

Cities and the Environment (CATE)

Current forest restoration practices for New York City’s (NYC) MillionTreesNYC Initiative on public parkland include site preparation with extensive invasive species removal and tree and shrub planting with the goal of creating new multi-layered forests. We have launched a long-term investigation of these sites in order to understand the primary physical, chemical, and biological responses of urban ecosystems to MillionTreesNYC forest restoration practices. This research will examine high and low diversity tree and understory planting combinations in permanent experimental forest restoration plots across NYC. The study assesses how the interactions between soil heterogeneity, plant population dynamics, and forest restoration management …

Biological, Social, And Urban Design Factors Affecting Young Street Tree Mortality In New York City, Jacqueline W.T. Lu, Erika S. Svendsen, Lindsay K. Campbell, Jennifer Greenfeld, Jessie Braden, Kristen L. King, Nancy Falxa-Raymond

Cities and the Environment (CATE)

In dense metropolitan areas, there are many factors including traffic congestion, building development and social organizations that may impact the health of street trees. The focus of this study is to better understand how social, biological and urban design factors affect the mortality rates of newly planted street trees. Prior analyses of street trees planted by the New York City Department of Parks & Recreation between 1999 and 2003 (n=45,094) found 91.3% of those trees were alive after two years and 8.7% were either standing dead or missing completely. Using a site assessment tool, a randomly selected sample of 13,405 …

Prioritizing Preferable Locations For Increasing Urban Tree Canopy In New York City, Dexter H. Locke, J. Morgan Grove, Jacqueline W.T. Lu, Austin Troy, Jarlath P.M. O'Neil-Dunne, Brian D. Beck

Cities and the Environment (CATE)

This paper presents a set of Geographic Information System (GIS) methods for identifying and prioritizing tree planting sites in urban environments. It uses an analytical approach created by a University of Vermont service-learning class called “GIS Analysis of New York City's Ecology” that was designed to provide research support to the MillionTreesNYC tree planting campaign. These methods prioritize tree planting sites based on need (whether or not trees can help address specific issues in the community) and suitability (biophysical constraints and planting partners’ existing programmatic goals). Criteria for suitability and need were based on input from three New York City …

Science Support For Water Resources Management, L. Douglas James

Journal of Contemporary Water Research and Education

No abstract provided.

Economic Science And The Central Arizona Project: Lessons Learned, Paul N. Wilson

Journal of Contemporary Water Research and Education

No abstract provided.

The Bureau Of Reclamation’S Directions And Water Resources Education Needs In The Agency’S 2nd Century, Randall V. Peterson

Journal of Contemporary Water Research and Education

No abstract provided.

Implementing Legally Mandated Science And Peer Review In Support Of The Everglades Restoration Program, Thomas Fontaine, Garth Redfield, Keith Rizzardi

Journal of Contemporary Water Research and Education

No abstract provided.

Visionary Reflections From A Crystal Clear Pool Of Water Scientists, Upmanu Lall

Journal of Contemporary Water Research and Education

No abstract provided.

The Water Resources Research Agenda: A Vision, Henry Vaux Jr.

Journal of Contemporary Water Research and Education

No abstract provided.

Reflections On Water Management, Academia And Disciplinary Perspectives In The United States, Kyle E. Schilling

Journal of Contemporary Water Research and Education

No abstract provided.

Mustang Daily, January 31, 2011

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

Modeling Of Equilibrium Point Trajectory Control In Human Arm Movements, Kai Chen

Dissertations

The underlying concept of the Equilibrium Point Hypothesis (EPH) is that the CNS provides a virtual trajectory of joint motion, representing spacing and timing, with actual movement dynamics being produced by interactions of limb inertia, muscle viscosity and speed/position feedback from muscle spindles. To counter criticisms of the EPH, investigators have proposed the use of complex virtual trajectories, non-linear damping, stiffness and time varying stiffness to the EPH model. While these features allow the EPH to adequately produce human joint velocities, they conflict with the EPH’s premise of simple pre-planned monotonic control of movement trajectory. As a result, this study …

Study Of Mechanisms Of Phytotoxicity Of Alumina Nanoparticles, Anthony Elijius

Dissertations

Plant growth inhibitory effect of alumina nanoparticles has recently been reported (Ling Y, Watts D, 2004) but the mechanisms of such an effect are yet to be established. The phytotoxicity of aluminum and some of its compounds is well known, but the rapid expansion of nanotechnology resulting in the introduction of new sets of materials in the nanometer range has led to the development of new approaches, experimental methods and modes of investigation.

In this study, the observed phytotoxic effects of alumina nanoparticles suspension on five plant species (Zea mays, Cucumis sativus, Daucus carota, Brassica oleracea, Lactuca sativa) …

A Molecular Dynamics Simulation Based Principal Component Analysis Framework For Computation Of Multi-Scale Modeling Of Protein And Its Interaction With Solvent, Tao Wu

Dissertations

This dissertation presents a new computational framework for calculating the normal modes and interactions of proteins, macromolecular assemblies and surrounding solvents. The framework employs a combination of molecular dynamics simulation (MD) and principal component analysis (PCA). It enables the capture and visualization of the molecules' normal modes and interactions over time scales that are computationally challenging. It also provides a starting point for experimental and further computational studies of protein conformational changes.

A protein's function is sometimes linked to its conformational flexibility. Normal mode analysis (NMA) and various extensions of it have provided insights into the conformational fluctuations associated with …