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California Polytechnic State University, San Luis Obispo

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Micrococcus Luteus - Survival In Amber, C. L. Greenblatt, J. Baum, B. Y. Klein, S. Nachshon, V. Koltunov, R. J. Cano Apr 2004

Micrococcus Luteus - Survival In Amber, C. L. Greenblatt, J. Baum, B. Y. Klein, S. Nachshon, V. Koltunov, R. J. Cano

Biological Sciences

A growing body of evidence now supports the isolation of microorganisms from ancient materials. However, questions about the stringency of extraction methods and the genetic relatedness of isolated organisms to their closest living relatives continue to challenge the authenticity of these ancient life forms. Previous studies have successfully isolated a number of spore-forming bacteria from organic and inorganic deposits of considerable age whose survival is explained by their ability to enter suspended animation for extended periods of time. However, despite a number of putative reports, the isolation of non-spore-forming bacteria and an explanation for their survival have remained enigmatic. Here …

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Variability In Measured And Modelled Remote Sensing Reflectance For Coastal Waters At Leo-5, Sasha Tozzi, Oscar Schofield, Trisha Bergmann, Mark A. Moline, Robert Arnone Apr 2004

Variability In Measured And Modelled Remote Sensing Reflectance For Coastal Waters At Leo-5, Sasha Tozzi, Oscar Schofield, Trisha Bergmann, Mark A. Moline, Robert Arnone

Biological Sciences

A large database of in situ bio-optical measurements were collected at the LEO-15 (Long-term Ecosystem Observatory) off the southern coast of New Jersey, USA. The data were used to quantify the impact of coastal upwelling on near-shore bulk apparent (AOP) and inherent (IOP) optical properties. There was good qualitative agreement between the AOPs and IOPs in space and time. The measured IOPs were used as inputs to the Hydrolight radiative transfer model (RTE). Estimated spectral AOPs from the RTE were strongly correlated (generally R2>0.80) to measured AOPs. If optical closure between in-water measurements was achieved then the RTE …

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Removing Excess Topology From Isosurfaces, Zoë J. Wood, Hugues Hoppe, Mathieu Desbrun, Peter Shröder Apr 2004

Removing Excess Topology From Isosurfaces, Zoë J. Wood, Hugues Hoppe, Mathieu Desbrun, Peter Shröder

Computer Science and Software Engineering

Many high-resolution surfaces are created through isosurface extraction from volumetric representations, obtained by 3D photography, CT, or MRI. Noise inherent in the acquisition process can lead to geometrical and topological errors. Reducing geometrical errors during reconstruction is well studied. However, isosurfaces often contain many topological errors in the form of tiny handles. These nearly invisible artifacts hinder subsequent operations like mesh simplification, remeshing, and parametrization. In this article we present a practical method for removing handles in an isosurface. Our algorithm makes an axis-aligned sweep through the volume to locate handles, compute their sizes, and selectively remove them. The algorithm …

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Magnetosome Mysteries, Richard B. Frankel, Dennis A. Bazylinski Apr 2004

Magnetosome Mysteries, Richard B. Frankel, Dennis A. Bazylinski

Physics

No abstract provided.

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Mustang Daily, March 11, 2004 Mar 2004

Mustang Daily, March 11, 2004

Cal Poly Student Newspaper

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

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Mustang Daily, March 4, 2004 Mar 2004

Mustang Daily, March 4, 2004

Cal Poly Student Newspaper

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

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Academic Senate - Agenda, 3/2/2004, Academic Senate Mar 2004

Academic Senate - Agenda, 3/2/2004, Academic Senate

Academic Senate Agendas

No abstract provided.

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Bayesian Statistics For Biological Data: Pedigree Analysis, William D. Stansfield, Matthew A. Carlton Mar 2004

Bayesian Statistics For Biological Data: Pedigree Analysis, William D. Stansfield, Matthew A. Carlton

Biological Sciences

No abstract provided.

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Fossil Tuna Vertebrae Punctured By Istiophorid Billfishes, Vincent P. Schneider, Harry L. Fierstine Mar 2004

Fossil Tuna Vertebrae Punctured By Istiophorid Billfishes, Vincent P. Schneider, Harry L. Fierstine

Biological Sciences

No abstract provided.

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Bacterial Succession In A Petroleum Land Treatment Unit, Christopher W. Kaplan, Christopher L. Kitts Mar 2004

Bacterial Succession In A Petroleum Land Treatment Unit, Christopher W. Kaplan, Christopher L. Kitts

Biological Sciences

Bacterial community dynamics were investigated in a land treatment unit (LTU) established at a site contaminated with highly weathered petroleum hydrocarbons in the C(10) to C(32) range. The treatment plot, 3,000 cubic yards of soil, was supplemented with nutrients and monitored weekly for total petroleum hydrocarbons (TPH), soil water content, nutrient levels, and aerobic heterotrophic bacterial counts. Weekly soil samples were analyzed with 16S rRNA gene terminal restriction fragment (TRF) analysis to monitor bacterial community structure and dynamics during bioremediation. TPH degradation was rapid during the first 3 weeks and slowed for the remainder of the 24-week project. A sharp …

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Magnetosome Formation In Prokaryotes, Dennis A. Bazylinski, Richard B. Frankel Mar 2004

Magnetosome Formation In Prokaryotes, Dennis A. Bazylinski, Richard B. Frankel

Physics

Magnetotactic bacteria were discovered almost 30 years ago, and for many years and many different reasons, the number of researchers working in this field was few and progress was slow. Recently, however, thanks to the isolation of new strains and the development of new techniques for manipulating these strains, researchers from several laboratories have made significant progress in elucidating the molecular, biochemical, chemical and genetic bases of magnetosome formation and understanding how these unique intracellular organelles function. We focus here on this progress.

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Mustang Daily, February 27, 2004 Feb 2004

Mustang Daily, February 27, 2004

Cal Poly Student Newspaper

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

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In Situ Cardiac Performance Of Pacific Bluefin Tuna Hearts In Response To Acute Temperature Change, Jason M. Blank, Jeffery M. Morrissette, Ana M. Landeira-Fernandez, Susanna B. Blackwell, Thomas D. Williams, Barbara A. Block Feb 2004

In Situ Cardiac Performance Of Pacific Bluefin Tuna Hearts In Response To Acute Temperature Change, Jason M. Blank, Jeffery M. Morrissette, Ana M. Landeira-Fernandez, Susanna B. Blackwell, Thomas D. Williams, Barbara A. Block

Biological Sciences

This study reports the cardiovascular physiology of the Pacific bluefin tuna (Thunnus orientalis) in an in situ heart preparation. The performance of the Pacific bluefin tuna heart was examined at temperatures from 30°C down to 2°C. Heart rates ranged from 156 beats min–1 at 30°C to 13 beats min–1 at 2°C. Maximal stroke volumes were 1.1 ml kg–1 at 25°C and 1.3 ml kg–1 at 2°C. Maximal cardiac outputs were 18.1 ml kg–1 min–1 at 2°C and 106 ml kg–1 min–1 at 25°C. These data indicate that cardiovascular function in …

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Academic Senate - Agenda, 2/10/2004, Academic Senate Feb 2004

Academic Senate - Agenda, 2/10/2004, Academic Senate

Academic Senate Agendas

No abstract provided.

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Mustang Daily, February 9, 2004 Feb 2004

Mustang Daily, February 9, 2004

Cal Poly Student Newspaper

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

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Mustang Daily, February 3, 2004 Feb 2004

Mustang Daily, February 3, 2004

Cal Poly Student Newspaper

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

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Mustang Daily, February 2, 2004 Feb 2004

Mustang Daily, February 2, 2004

Cal Poly Student Newspaper

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

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Variation In Vasotocin Immunoreactivity In The Brain Of Recently Isolated Populations Of A Death Valley Pupfish, Cyprinodon Nevadensis, Sean C. Lema, Gabrielle A. Nevitt Feb 2004

Variation In Vasotocin Immunoreactivity In The Brain Of Recently Isolated Populations Of A Death Valley Pupfish, Cyprinodon Nevadensis, Sean C. Lema, Gabrielle A. Nevitt

Biological Sciences

Pupfishes in the Death Valley region of California and Nevada comprise a monophyletic group of populations that became isolated in remote streams and springs over the past 20,000 years. These aquatic habitats show considerable ecological diversity, and allopatric populations have evolved differences in morphology and behavior. Here we investigated whether the divergence of pupfish populations in Death Valley might be associated with changes in arginine vasotocin (AVT). We used immunocytochemistry to compare the expression of AVT in the brain of Amargosa pupfish (Cyprinodon nevadensis) from two Death Valley populations: (1) the Amargosa River—a highly variable desert stream containing …

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A Comparison Between Point- And Semi-Continuous Sampling For Assessing Body Temperature In A Free-Ranging Ectotherm, Emily N. Taylor, Dale F. Denardo, Michael A. Malawy Feb 2004

A Comparison Between Point- And Semi-Continuous Sampling For Assessing Body Temperature In A Free-Ranging Ectotherm, Emily N. Taylor, Dale F. Denardo, Michael A. Malawy

Biological Sciences

We used intracoelomically implanted temperature dataloggers to obtain semi-continuous body temperature data and establish monthly thermal profiles for free-ranging rattlesnakes. We mimicked random and non-random point-sampling methods by selecting a single daily data point from all values or from restricted times of day to reflect common point-sampling constraints. Thermal profiles generated from point-sampling differed from those generated from semi-continuous sampling, and this difference was more apparent when point-sampling was non-random. We conclude that semi-continuous sampling provides a better estimate of thermal profiles, and that point-sampling methods are highly sensitive to deviations from true randomness.

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Promoting More Modest Weight Losses: A Pilot Study, Gary D. Foster, Suzanne Phelan, Thomas A. Wadden, Debra Gill, Jenna Ermold, Elizabeth Didie Feb 2004

Promoting More Modest Weight Losses: A Pilot Study, Gary D. Foster, Suzanne Phelan, Thomas A. Wadden, Debra Gill, Jenna Ermold, Elizabeth Didie

Kinesiology and Public Health

Objective: This pilot study assessed the short- and long-term effects of a modified cognitive behavioral treatment designed to facilitate obese patients' acceptance of a 5% to 10% reduction in initial weight.
Research Methods and Procedures: Participants were 17 women with a mean age of 46.5 ± 9.7 years and BMI of 34.7 ± 2.9 kg/m2. They participated in a 40-week program that included four phases. The first discussed the benefits of modest weight losses and the potential adverse effects of unrealistic expectations. Phase II provided instruction in traditional cognitive behavioral methods of weight control Phase III focused on …

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Mustang Daily, January 29, 2004 Jan 2004

Mustang Daily, January 29, 2004

Cal Poly Student Newspaper

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

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Mustang Daily, January 21, 2004 Jan 2004

Mustang Daily, January 21, 2004

Cal Poly Student Newspaper

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

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Academic Senate - Agenda, 1/20/2004, Academic Senate Jan 2004

Academic Senate - Agenda, 1/20/2004, Academic Senate

Academic Senate Agendas

No abstract provided.

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Mustang Daily, January 16, 2004 Jan 2004

Mustang Daily, January 16, 2004

Cal Poly Student Newspaper

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

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Fact Sheet: Proposition 55 And The Central Coast, Public Affairs Office Jan 2004

Fact Sheet: Proposition 55 And The Central Coast, Public Affairs Office

Press Releases

No abstract provided.

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Mustang Daily, January 9, 2004 Jan 2004

Mustang Daily, January 9, 2004

Cal Poly Student Newspaper

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

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Some Systemic Issues In The Development Of The Aerospace Industry Technical Workforce Of The Future, John H. Mcmasters, Russell M. Cummings Jan 2004

Some Systemic Issues In The Development Of The Aerospace Industry Technical Workforce Of The Future, John H. Mcmasters, Russell M. Cummings

Aerospace Engineering

This paper is a continuation of the authors’ previous examinations of a suite of issues surrounding the putative decline in aeronautics in this country. The purpose of this paper is to discuss three specific issues believed to be of particular importance to the future of our industry. The first is the question of how many engineers we may need in our future as we confront the problem of an aging workforce and the globalization of our industry. The second is the question of what skills and abilities these engineers will need to possess as the overall industry continues to evolve. …

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Airplane Design And The Biomechanics Of Flight – A More Completely Multi- Disciplinary Perspective, John H. Mcmasters, Russell M. Cummings Jan 2004

Airplane Design And The Biomechanics Of Flight – A More Completely Multi- Disciplinary Perspective, John H. Mcmasters, Russell M. Cummings

Aerospace Engineering

Aeronautics is usually presumed to have started as a formal engineering discipline somewhere in historical time between the mythological experiments of Daedalus and his ill-fated son, Icarus; and the dreams and schemes of Leonardo da Vinci during the Italian Renaissance. As reviewed in this paper, “aeronautics” has a far longer history, extending over a period of about 300 million years beginning with the evolution of the ability of insects to fly. With the advent of the success of the Wright brothers, technologists quickly turned their attention from the inspirations and lessons provided by natural models of flying machines to …

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Watershed Study Results Offer Strategies For Reducing Erosion And Sedimentation Associated With Cattle Grazing, Lynn E. Moody Jan 2004

Watershed Study Results Offer Strategies For Reducing Erosion And Sedimentation Associated With Cattle Grazing, Lynn E. Moody

Natural Resources Management and Environmental Sciences

The Morro Bay estuary is arguably the most important wetland system on the south central coast of California. It supports commercial fishing industries, numerous recreation activities, and a variety of natural habitats. The estuary and its watershed, representing a diverse biological and economic resource to the people of California, are impacted by various pollutants, with sediment of particular concern. As part of a 10-year national monitoring program funded by the U.S. Environmental Protection Agency (EPA) through California's Regional Water Quality Control Board (Regional Board), a paired watershed study on California Polytechnic State University's Escuela Ranch has shown that Best Management …

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Annual Summary Of Grant And Contract Activity Fiscal Year 2004, Grants Development Office Jan 2004

Annual Summary Of Grant And Contract Activity Fiscal Year 2004, Grants Development Office

Grants Development Office Reports

No abstract provided.

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