Digital Commons Network^™

Regulation Of Stomatal Tropism And Infection By Light In Cercospora Zeae-Maydis: Evidence For Coordinated Host/Pathogen Responses To Photoperiod?, Hun Kim, John B. Ridenour, Larry D. Dunkle, Burton H. Bluhm

Department of Botany and Plant Pathology Faculty Publications

Cercospora zeae-maydis causes gray leaf spot of maize, which has become one of the most widespread and destructive diseases of maize in the world. C. zeae-maydis infects leaves through stomata, which is predicated on the ability of the pathogen to perceive stomata and reorient growth accordingly. In this study, the discovery that light was required for C. zeae-maydis to perceive stomata and infect leaves led to the identification of CRP1, a gene encoding a putative blue-light photoreceptor homologous to White Collar-1 (WC-1) of Neurospora crassa. Disrupting CRP1 via homologous recombination revealed roles in multiple aspects of pathogenesis, including …

Back Matter, Journal Of Purdue Undergraduate Research

The Journal of Purdue Undergraduate Research

Information about the editorial and design staff responsible for the first volume of the Journal of Purdue Undergraduate Research.

Do Wind Turbines Affect Weather Conditions?: A Case Study In Indiana, Meghan F. Henschen, Brittany Herrholtz, Lacey Rhudy, Kathryn Demchak, Brian Doogs, Joshua Holland, Erik Larson, Johnny Martin, Matthew Rudkin

The Journal of Purdue Undergraduate Research

Wind turbines are becoming increasingly widespread in the United States as the world looks for cleaner sources of energy. Scientists, policymakers, and citizens have strong opinions regarding the positive and negative effects of wind energy projects, and there is a great deal of misinformation about wind energy circulating on the Web and other media sources. The purpose of this study is to gain a better understanding of how the rotation of hundreds of turbines can influence local weather conditions within a wind farm and in the surrounding areas. This experiment measures temperature, atmospheric pressure, wind speed, wind direction, relative humidity, …

Combating Bioterrorism: Purification And Structural Analysis Of The E3 Proteins Of The Venezuelan Equine Encephalitis Virus And The Chikungunya Virus, Tyshia Gwin

The Journal of Purdue Undergraduate Research

Outbreaks of the Venezuelan Equine Encephalitis Virus (VEEV) and the Chikungunya Virus (CHIKV) continue to emerge in Central and South America, Africa, and Asia, but there are currently no vaccines or anti-virals for these viruses. Given their ease of transmission, debilitating symptoms, and genetic alterability, VEEV and CHIKV have great potential for development into biological weapons. Therefore, there is an urgent need to determine possible methods of treatment or prevention. One possibility of prevention lies in determining the structure and biological function of the E3 protein that plays a key role in the infectivity of the viruses. In this research, …

Dislocation Pinning Effects Induced By Nano-Precipitates During Warm Laser Shock Peening: Dislocation Dynamic Simulation And Experiments, Yiliang Liao, Chang Ye, Huang Gao, Bong-Joong Kim, Sergey Suslov, Eric A. Stach, Gary J. Cheng

Birck and NCN Publications

Warm laser shock peening (WLSP) is a new high strain rate surface strengthening process that has been demonstrated to significantly improve the fatigue performance of metallic components. This improvement is mainly due to the interaction of dislocations with highly dense nanoscale precipitates, which are generated by dynamic precipitation during the WLSP process. In this paper, the dislocation pinning effects induced by the nanoscale precipitates during WLSP are systematically studied. Aluminum alloy 6061 and AISI 4140 steel are selected as the materials with which to conduct WLSP experiments. Multiscale discrete dislocation dynamics (MDDD) simulation is conducted in order to investigate the …

Comparison Of Clustered Rdf Data Stores, Venkata Patchigolla

Purdue Polytechnic Masters Theses

Storing data in RDF format helps in simpler data interchange among different researchers compared to present approaches. There has been tremendous increase in the applications that use RDF data. The nature of RDF data is such that it tends to increase explosively. This makes it necessary to consider the time for retrieval and scalability of data while selecting a suitable RDF data store for developing applications. The research concentrates on comparing BigOWLIM. Bigdata, 4store and Virtuoso RDF stores on basis of their scalability and performance of storing and retrieving cancer proteomics and mass spectrometry data using SPARQL queries. In this …

Bpmn Tools - A Comparative Analysis To Improve Interoperability, Shefali N. Pawar

Purdue Polytechnic Masters Theses

The purpose of this research study was to investigate whether the interoperability across different vendor implementations of the BPMN 2.0 standard can be improved. The study attempted to identify significant discrepancies in the process modeling and execution notations as supported by three BPMN modeling tools with respect to the BPMN 2.0 specification. The three BPMN 2.0 tools included MID Innovator for Business Analysts, Activiti BPM Platform, and Trisotech BPMN 2.0 Modeler for Visio. An evaluation framework was used to compare the selected tools based on three classes of BPMN 2.0 objects – SIMPLE, STANDARD, and COMPLETE. Furthermore, the study tested …

Scientists Become Real People To Students, Al Enlow

First Opinions, Second Reactions

No abstract provided.

Second Reaction: Pinwheels And Wind Turbines As A Lesson In Renewable Energy, Brianna Dorie

First Opinions, Second Reactions

No abstract provided.

Second Reaction: Combining Efferent Reading And Aesthetics To Enhance Student Appreciation, Ann Koci

First Opinions, Second Reactions

No abstract provided.

N-Terminal Gly224–Gly411 Domain In Listeria Adhesion Protein Interacts With Host Receptor Hsp60., Balamurugan Jagadeesan, Amy E. Fleishman Littlejohn, Mary Ann Roshni Amalaradjou, Atul K. Singh, Krishna K. Mishra, David La, Daisuke Kihara, Arun K. Bhunia

Department of Food Science Faculty Publications

Background

Listeria adhesion protein (LAP) is a housekeeping bifunctional enzyme consisting of N-terminal acetaldehyde dehydrogenase (ALDH) and C-terminal alcohol dehydrogenase (ADH). It aidsListeria monocytogenes in crossing the epithelial barrier through a paracellular route by interacting with its host receptor, heat shock protein 60 (Hsp60). To gain insight into the binding interaction between LAP and Hsp60, LAP subdomain(s) participating in the Hsp60 interaction were investigated.

Methods

Using a ModBase structural model, LAP was divided into 4 putative subdomains: the ALDH region contains N1 (Met1–Pro223) and N2 (Gly224–Gly411), and the ADH region contains C1 (Gly412–Val648) and C2 (Pro649–Val866). Each subdomain was …

Characterization Of Surface Proteins Of Cronobacter Muytjensii Using Monoclonal Antibodies And Maldi-Tof Mass Spectrometry, Ziad W. Jaradat, Abrar M. Rashdan, Qotaiba O. Ababneh, Saied A. Jaradat, Arun K. Bhunia

Department of Food Science Faculty Publications

Background

Cronobacter spp. is a newly emerging pathogen that causes meningitis in infants and other diseases in elderly and immunocompromised individuals. This study was undertaken to investigate surface antigenic determinants in Cronobacter spp. using monoclonal antibodies (MAbs) and MALDI-TOF Mass spectrometry.

Results

Spleenocytes from mice that were immunized with heat-killed (20 min, 80°C) Cronobacter cells were fused with SP2 myeloma cells. Five desirable MAbs (A1, B5, 2C2, C5 and A4) were selected. MAbs A1, B5, 2C2 and C5 were of IgG2a isotype while A4 was an IgM. Specificity of the MAbs was determined by using immunoblotting with outer membrane protein …

Building An Enhanced Drought Early Warning System (Dews): Tools And Services For Decision Support, Mark Svoboda

2011 Symposium on Data-Driven Approaches to Droughts

Perhaps no other hazard lends itself as well to the need for a diligent early warning system (DEWS) than drought. Droughts typically evolve slowly, but have the potential to cover very large areas compared to hazards like hurricanes, tornadoes and floods, which have a much smaller geographic footprint. The U.S. took first steps in 2006 toward developing coordinated and integrated DEWS through the creation of the National Integrated Drought Information System, or NIDIS. More recently, the National Drought Mitigation Center (http://drought.unl.edu) has been working with NIDIS and other international parties (WMO, GEO, United Nations, etc.) with a goal of developing …

Developing A Regional Land Use Drought Index In Florida, Chi-Han Cheng, Fidelia Nnadi

2011 Symposium on Data-Driven Approaches to Droughts

Drought is a natural phenomenon that occurs when a significant decrease of water availability during a significant period of time and over a larger area. Drought indices can be a useful tool to assess and respond to drought. However, current drought indices could not fully show the land use effects and they have limitation in data sources. ENSO influence the climate of Florida; where El Niño years tend to be cooler and wetter, and La Niña years tend to be warmer and drier than normal in the fall through the spring, with the strongest effect in the winter. Both prolonged …

Climatic Characterization And Response Of Water Resources To Climate Change In Limestone Areas: Some Considerations On The Importance Of Geological Setting, Di Matteo Lucio, Valigi Daniela, Cambi Costanza

2011 Symposium on Data-Driven Approaches to Droughts

It is worldwide recognized and accepted that, in Southern Europe and the Mediterranean area in the last hundred years, the atmospheric temperature has risen by about 1°C, accompanied by a general decrease in precipitation. The trends detected in historical thermo-pluviometric series recorded in South/Central Italy show a general decrease in precipitation on an annual scale and a concentration of negative trends in the months from October to March. Analysis of the Standard Precipitation Index for the period 1951-2008 indicates higher frequency and duration of droughts in the last two decades: four prolonged dry periods (each lasting for up to three …

Institutional Repositories In The Libraries Of The Institutions Of Higher Education Of The Kharkiv Methodical Association Of Ukraine, Iryna Zhuravlyova

Proceedings of the IATUL Conferences

No abstract provided.

Strategically Leveraging Learning Space To Create Partnership Opportunities, Tomalee Doan

Libraries Faculty and Staff Scholarship and Research

The Management & Economics Library at Purdue University began a major physical and conceptual renovation four years ago. The conceptual renovation involves a rethinking of library faculty and staff roles and responsibilities based on the library’s and university’s strategic directives. The LearnLab space is being used as a springboard to create new partnerships, to implement our new roles, and to transform the perspective of an academic library’s present capability. This article will highlight the variety of opportunities that have arisen by leveraging the Learn Lab space.

Management Of Library's Financial Resources Implementing The Open Environment, Janina Pupeliene

Proceedings of the IATUL Conferences

No abstract provided.

Open Libraries, Open Resources, Open To Change?: Library Organisational Development And Design To Improve And Support The Creation And Open Publication Of Research Resources, Sue Roberts, Alison Stevenson

Proceedings of the IATUL Conferences

No abstract provided.

Open Access And The Practice Of Academic Librarianship: Strategies And Considerations For "Front Line" Librarians, Laura Bowering Mullen

Proceedings of the IATUL Conferences

No abstract provided.

Reshaping And Rescoping University Libraries To Fit Changing Academic Requirements, Maude Frances, Janet Fletcher, Sue Harmer

Proceedings of the IATUL Conferences

No abstract provided.

Library As A Hub. Changing Roles And Functions Of Academic Library, Błażej Feret

Proceedings of the IATUL Conferences

No abstract provided.

Comparison Of Photothermal And Piezoacoustic Excitation Methods For Frequency And Phase Modulation Atomic Force Microscopy In Liquid Environments, A. Labuda, K. Kobayashi, Daniel Kiracofe, K. Suzuki, P. H. Gruetter, H. Yamada

Birck and NCN Publications

In attempting to perform frequency modulation atomic force microscopy (FM-AFM) in liquids, a non-flat phase transfer function in the self-excitation system prevents proper tracking of the cantilever natural frequency. This results in frequency-and-phase modulation atomic force microscopy (FPM-AFM) which lies in between phase modulation atomic force microscopy (PM-AFM) and FM-AFM. We derive the theory necessary to recover the conservative force and damping in such a situation, where standard FM-AFM theory no longer applies. Although our recovery procedure applies to all cantilever excitation methods in principle, its practical implementation may be difficult, or even impossible, if the cantilever is driven piezoacoustically. …

Bibliography Of Scholarship On Indigenous Literatures And Cultures, Angeline O'Neill, Albert Braz

CLCWeb: Comparative Literature and Culture

No abstract provided.

Bet You Missed It -- Press Clippings -- In The News -- Carefully Selected By Your Crack Staff Of New Sleuths, Bruce Strauch

Against the Grain

No abstract provided.

Questions & Answers -- Copyright Column, Laura N. Gasaway

Against the Grain

No abstract provided.

On The Road -- Wearing A Russian Hat To The Revolution: Libraries, Gaming, And Learning, Oh My!, Jared Alexander Seay

Against the Grain

No abstract provided.

Future Conference Dates

Against the Grain

No abstract provided.

Acquisitions Archaeology -- The Tipping Point, Jesse Holden

Against the Grain

No abstract provided.

A Dialogue On Pda, Xan Arch, Rick Anderson, Sanford G. Thatcher

Against the Grain

No abstract provided.