Digital Commons Network^™

Numerical Simulation Of Centrifuge Tests On Homogeneous And Heterogeneous Soil Models, Pradipta Chakrabortty, Radu Popescu

Architectural Engineering

Soil liquefaction is a major cause of seismic damage in cohessionless soil during earthquakes. From past numerical and experimental research it has been observed that more excess pore water pressure (EPWP) is generated during earthquakes in a heterogeneous soil deposit than in the corresponding homogeneous soil with relative density equal to the average relative density of the heterogeneous soil. This interesting phenomenon is investigated here, by numerically simulating centrifuge experiments of seismically induced soil liquefaction using the finite element code DYNAFLOW. Two centrifuge tests are numerically simulated here: one in homogeneous soil and another in heterogeneous soil. Recorded experimental results …

A Cultured Greigite-Producing Magnetotactic Bacterium In A Novel Group Of Sulfate-Reducing Bacteria, Christopher T. Lefèvre, Nicholas Menguy, Fernanda Abreu, Ulysses Lins, Mihály Pósfai, Tanya Prozorov, David Pignol, Richard B. Frankel, Dennis A. Bazylinski

Physics

Magnetotactic bacteria contain magnetosomes—intracellular, membrane-bounded, magnetic nanocrystals of magnetite (Fe₃O₄) or greigite (Fe₃S₄)—that cause the bacteria to swim along geomagnetic field lines. We isolated a greigite-producing magnetotactic bacterium from a brackish spring in Death Valley National Park, California, USA, strain BW-1, that is able to biomineralize greigite and magnetite depending on culture conditions. A phylogenetic comparison of BW-1 and similar uncultured greigite- and/or magnetite-producing magnetotactic bacteria from freshwater to hypersaline habitats shows that these organisms represent a previously unknown group of sulfate-reducing bacteria in the Deltaproteobacteria. Genomic analysis of BW-1 reveals …

Cal Poly Professor, Colleagues Discover New Magnetic Bacterium, Public Affairs Office

Press Releases

No abstract provided.

Cal Poly, City Of San Luis Obispo To Present Community Colloquium ‘Celebrating Diversity’ Feb. 6, Public Affairs Office

Press Releases

No abstract provided.

Cal Poly Students Plan San Luis Obispo’S First ‘Startup Weekend’ For Jan. 20-22, Public Affairs Office

Press Releases

No abstract provided.

Why Animal Ethics Committees Don't Work, Denise Russell

Between the Species

Abstract

Animal ethics committees have been set up in many countries as a way to scrutinize animal experimentation and to assure the public that if animals are used in research then it is for a worthwhile cause and suffering is kept to a minimum. The ideals of Refinement, Reduction and Replacement are commonly upheld. However while refinement and reduction receive much attention in animal ethics committees the replacement of animals is much more difficult to incorporate into the committees’ deliberations. At least in Australia there are certain structural reasons for this but it is likely that most of the reasons …

Concert Organist Jonathan Dimmock To Play Forbes Pipe Organ In January, Public Affairs Office

Press Releases

No abstract provided.

Pianist W. Terrence Spiller Sets Jan. 6 Benefit Recital At Cal Poly, Public Affairs Office

Press Releases

No abstract provided.

Cal Poly Campuses Collaborate On Aerial Robotics Research, Public Affairs Office

Press Releases

No abstract provided.

Original Chamber Music By Cal Poly Professor Craig Russell To Be Performed Jan. 7, Public Affairs Office

Press Releases

No abstract provided.

Cal Poly Helps Promote Aspiring Female Computer Scientists, Public Affairs Office

Press Releases

No abstract provided.

Pg&E Grant Provides Audio-Video Equipment For Cal Poly Journalism Department, Public Affairs Office

Press Releases

No abstract provided.

The Met: Live In Hd Resumes Screening Schedule On January 8, Public Affairs Office

Press Releases

No abstract provided.

Differential Regulation Of Articular Cartilage Tensile Properties By Igf-1 And Tgf-Β1 During In Vitro Growth, M. E. Stender, N. T. Balcom, B. Berg-Johansen, K. J. Dills, D. Dyk, S. J. Hazelwood, A. C. Chen, R. L. Sah, S. M. Klisch

Mechanical Engineering

No abstract provided.

Veritas Observations Of Gamma-Ray Bursts Detected By Swift, V. A. Acciari, E. Aliu, T. Arlen, T. Aune, M. Beilicke, W. Benbow, S. M. Bradbury, J. H. Buckley, V. Bugaev, K. Byrum, A. Cannon, A. Cesarini, J. L. Christiansen, L. Ciupik, E. Collins-Hughes, M. P. Connolly, W. Cui, C. Duke, M. Errando, A. Falcone, J. P. Finley, G. Finnegan, L. Fortson, A. Furniss, N. Galante, D. Gall, S. Godambe, S. Griffin, J. Grube, R. Guenette, G. Gyuk, D. Hanna, J. Holder, G. Hughes, C. M. Hui, T. B. Humensky, D. J. Jackson, P. Kaaret, N. Karlsson, M. Kertzman, D. Kieda, H. Krawczynski, F. Krennrich, M. J. Lang, A. S. Madhavan, G. Maier, S. Mcarthur, A. Mccann, P. Moriarty, M. D. Newbold, R. A. Ong, M. Orr, A. N. Otte, N. Park, J. S. Perkins, M. Pohl, H. Prokoph, J. Quinn, K. Ragan, L. C. Reyes, P. T. Reynolds, E. Roache, H. J. Rose, J. Ruppel, D. B. Saxon, M. Schroedter, G. H. Sembroski, G. D. Şentürk, A. W. Smith, D. Staszak, S. P. Swordy, G. Tešić, M. Theiling, S. Thibadeau, K. Tsurusaki, A. Varlotta, V. V. Vassiliev, S. Vincent, M. Vivier, S. P. Wakely, J. E. Ward, T. C. Weekes, A. Weinstein, T. Weisgarber, D. A. Williams, M. Wood

Physics

We present the results of 16 Swift-triggered Gamma-ray burst (GRB) follow-up observations taken with the Very Energetic Radiation Imaging Telescope Array System (VERITAS) telescope array from 2007 January to 2009 June. The median energy threshold and response time of these observations were 260 GeV and 320 s, respectively. Observations had an average duration of 90 minutes. Each burst is analyzed independently in two modes: over the whole duration of the observations and again over a shorter timescale determined by the maximum VERITAS sensitivity to a burst with a t^−1.5 time profile. This temporal model is characteristic of GRB …

The Lick Agn Monitoring Project 2011: Reverberation Mapping Of Markarian 50, Aaron J. Barth, Anna Pancoast, Shawn J. Thorman, Vardha N. Bennert, David J. Sand, Weidong Li, Gabriela Canalizo, Alexei V. Filippenko, Elinor L. Gates, Jenny E. Greene, Matthew A. Malkan, Daniel Stern, Tommaso Treu, Jong-Hak Woo, Roberto J. Assef, Hyun-Jin Bae, Brendon J. Brewer, Tabitha Buehler, S. Bradley Cenko, Kelsey I. Clubb, Michael C. Cooper, Aleksandar M. Diamond-Stanic, Kyle D. Hiner, Sebastian F. Hönig, Michael D. Joner, Michael T. Kandrashoff, C. David Laney, Mariana S. Lazarova, A. M. Nierenberg, Dawoo Park, Jeffrey M. Silverman, Donghoon Son, Alessandro Sonnenfeld, Erik J. Tollerud, Jonelle L. Walsh, Richard Walters, Robert L. Da Silva, Michele Fumagalli, Michael D. Gregg, Chelsea E. Harris, Eric Y. Hsiao, Jeffrey Lee, Liliana Lopez, Jacob Rex, Nao Suzuki, Jonathan R. Trump, David Tytler, Gábor Worseck, Hassan M. Yesuf

Physics

The Lick AGN Monitoring Project 2011 observing campaign was carried out over the course of 11 weeks in spring 2011. Here we present the first results from this program, a measurement of the broad-line reverberation lag in the Seyfert 1 galaxy Mrk 50. Combining our data with supplemental observations obtained prior to the start of the main observing campaign, our data set covers a total duration of 4.5 months. During this time, Mrk 50 was highly variable, exhibiting a maximum variability amplitude of a factor of ~4 in the U-band continuum and a factor of ~2 in the Hβ …

Cal Poly Fall 2011 Commencement Set For Dec. 10, Public Affairs Office

Press Releases

No abstract provided.

Cal Poly Study Aims To Curb Pregnancy Weight Gain And Danger In Obese Mothers-To-Be, Public Affairs Office

Press Releases

No abstract provided.

December 7, 2011 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Telling It Like It Is: A Proposal To Improve Transparency In Biomedical Research, John Hadley

Between the Species

Recent proposals to improve public communication about animal-based biomedical research have been narrowly focused on reforming biomedical journal submission guidelines. My suggestion for communication reform is broader in scope reaching beyond the research community to healthcare communicators and ultimately the general public. The suggestion is for researchers to provide journalists and public relations practitioners with concise summaries of their ‘animal use data’. Animal use data is collected by researchers and intended for the public record but is rarely, if ever, given significant media exposure. By providing healthcare communicators with specific details about their animal use, researchers can play a role …

Ap French Language And Culture: Strategizing For Success, Brian G. Kennelly

World Languages and Cultures

No abstract provided.

Cal Poly Engineering Student Wins New Car At Water Exhibition, Public Affairs Office

Press Releases

No abstract provided.

Cplop - Cal Poly's Library Of Pyroprints, Kevin Webb

Computer Engineering

California Polytechnic Library of Pyroprints, CPLOP, is a web driven data-base application that stores data from the biology’s departments E. coli Pyrosequencing project. Some of this data was stored in Excel datasheets, while data from the pyrosequencing machines was stored as just a list of random .xml files. There was no useful way to organize and store the massive amounts of data from multiple file sources in one location, nor to perform the complicated searches and comparisons that the project requires. CPLOP’s primary goal is to store such data in three organized tables that relate to one another. It was …

Golf Club Quality Control Device, David Mcdermott, Mark Severy

Mechanical Engineering

No abstract provided.

Historic Calculator Project, Will Harris, Dan Marioni, Kevin Webb, Chad Williams

Mechanical Engineering

The Deutsches Museum of Munich, Germany requested add-on components to their mechanical calculator exhibit. The end-goal is to produce an interactive 3D model in software to demonstrate the functions of the Braun-Vayringe Machine (BVM). There will be four students working on this project at California Polytechnic State University, San Luis Obispo: two mechanical engineers (Dan Marioni and Will Harris) and two computer engineers (Chad Williams and Kevin Webb).This project involves the coordination of three facilities; the Deutsches Museum, and the Mechanical and Computer Science Departments of Cal Poly. The name of the project is known as the Historic Calculator Project …

Anger And Fear In Decision-Making: The Case Of Film Directors On Set, Jean-François Coget, Christopher Haag, Donald E. Gibson

Management, HR and Information Systems

Anger and fear are frequently felt and impactful workplace emotions, especially in times of crisis when critical decisions need to be made. An important question is how these emotions might influence decision makers’ depth of processing: whether when feeling angry or fearful decision-makers engage in more conscious and analytical rational decision making, or less-conscious and heuristic intuitive decision making. To date research on the effect of these strong emotions has been limited to laboratory studies where the complexity and pressures of real-world managerial decisions are absent, and focused on generalized mood rather than on direct emotional experience. This study asks …

Maternal Smoking During Pregnancy And Risk Factors For Cardiovascular Disease In Adulthood, Bernardo Lessa Horta, Denise P. Gigante, Aydin Nazmi, Vera Maria F. Silveira, Isabel Oliveira, Cesar G. Victora

Food Science and Nutrition

Objective: This study was aimed at assessing the effect of maternal smoking during pregnancy on metabolic cardiovascular risk factors in early adulthood in a Brazilian birth cohort, after controlling for possible confounding variables and health behaviors in early adulthood.

Methods: In 1982, the maternity hospitals in Pelotas, southern Brazil, were visited and all births were identified. Those livebirths whose family lived in the urban area of the city were studied prospectively. In 2004–2005, we attempted to follow the whole cohort, the subjects were interviewed, examined and blood sample was collected. The following outcomes were studied: blood pressure; HDL cholesterol; triglycerides; …

How To Control Texture In Cultured Dairy, Phillip S. Tong

Dairy Science

No abstract provided.

Cal Poly Creamery Recalls Eggnog, Public Affairs Office

Press Releases

No abstract provided.

Cal Poly Announces Administrative Changes In Student Affairs Division, Public Affairs Office

Press Releases

No abstract provided.