Digital Commons Network^™

Impact Of Dynamic Light And Nutrient Environments On Phytoplankton Communities In The Coastal Ocean, Mark A. Moline, Oscar Schofield, Joe Grzymski

Biological Sciences

Phytoplankton represent the base of the food web in marine ecosystems. Changes in the structure and composition of these phytoplankton communities will, therefore, have a direct effect on the amount of carbon available to higher trophic levels. In the absence of significant grazing, light and nutrients are the primary factors regulating phytoplankton photosynthesis and productivity in marine environments. As the requirements for light and nutrients differ between species, phytoplankton community structure is also sensitive to dynamic optical and chemical conditions in the water column.

A New Wildlife Sighting Reporting And Database System For Lassen Volcanic National Park, John D. Perrine, Jonathan F. Arnold

Biological Sciences

Visitors and employees in national parks may observe species of interest to wildlife biologists and resource managers. These sightings are useful to researchers and managers only if the data can be efficiently acquired, stored and retrieved for analysis.· We identified several problems in the wildlife sightings reporting system at Lassen Volcanic National Park, including a confusing array of reporting forms; incomplete contact information for the reporter; insufficient reporting of the animal's description, behavior and location; and a cumbersome data entry and retrieval system. We developed a new system to correct these problems. A single reporting form corrects the aforementioned data …

Terminal Restriction Fragment Patterns: A Tool For Comparing Microbial Communities And Assessing Community Dynamics, Christopher L. Kitts

Biological Sciences

Terminal Restriction Fragment (TRF) patterns, also known as Terminal Restriction Fragment Length Polymorphisms (T-RFLP), are a recently introduced PCR-based tool for studying microbial community structure and dynamics. Since the first review of TRF methodology (Marsh, 1999. Curr. Op. Microbiol. 2: 323-7), at least 35 new research articles were published that include this powerful tool in some part of their reports. This review covers some of the applications that TRF patterns were used for and provides a discussion of how to create and analyze TRF pattern data. This data has the advantage of being simply and rapidly produced using standard DNA …

Sclerosponges: Potential High-Resolution Recorders Of Marine Paleotemperatures, Gary B. Hughes, Charles W. Thayer

Statistics

Sclerosponges have great potential as seawater temperature recorders. These animals precipitate their skeletons in carbon and oxygen isotopic equilibrium with the surrounding seawater (Druffel and Benavides, 1986). Their skeletons also display chemical properties that vary directly with changes in environmental conditions. Lack of photosynthetic symbionts allows sclerosponges to live below the photic zone, providing the potential to investigate past marine conditions beyond the range of corals. Individual sponges live for several centuries, preserving archives of pre-and postindustrial seawater variations within single specimens (Hartman and Reiswig, 1980). Cross-correlation of successively older specimens could yield up to 2000 years of marine history. …

Explanatory Conversations And Young Children's Developing Scientific Literacy, Jennifer Jipson

Psychology and Child Development

No abstract provided.

Academic Senate - Agenda, 11/21/2000, Academic Senate

Academic Senate Agendas

No abstract provided.

November 15, 2000 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Mustang Daily, November 7, 2000

Cal Poly Student Newspaper

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

Mustang Daily, November 6, 2000

Cal Poly Student Newspaper

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

A Growth Mixture Theory For Cartilage, Stephen M. Klisch, Robert L. Sah, Anne Hoger

Mechanical Engineering

In this paper we present a model of growth for cartilaginous tissues in which there exists a saturated solid matrix composed of multiple constituents that may grow and remodel independently of each other. Klisch and Hoger recently developed a general theory of volumetric growth for a mixture of ν-1 growing elastic materials and an inviscid fluid, which included a treatment of two special types of internal constraints that are relevant to cartilage. Here, that theory is specialized to construct a cartilage growth model. This theory allows the constituents of the solid matrix to grow independently of each other, and can …

Mustang Daily, November 3, 2000

Cal Poly Student Newspaper

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

Mustang Daily, November 2, 2000

Cal Poly Student Newspaper

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

November 1, 2000 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Mustang Daily, November 1, 2000

Cal Poly Student Newspaper

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

Development And Validation Of A Pedestrian Lower Limb Non-Linear 3-D Finite Element Model, Peter Schuster, Gopal Jayaraman

Mechanical Engineering

Lower limb injury is becoming an increasingly important concern in vehicle safety for both occupants and pedestrians. To enable vehicle manufacturers to better understand the biomechanical effects of design changes, it is deemed beneficial to employ a biomechanically fidelic finite element model of the human lower limb.

The model developed in this study includes long bones (tibia, fibula, femur) and flat bone (patella) as deformable bodies. The pelvis and foot bones are modeled as rigid bodies connected to the femur and tibia/fibula via rotational spring-dashpots. The knee is defined by scanned bone surface geometry and is surrounded by the menisci, …

Metabolic Heat: A New Way Of Looking At How Controlled Atmospheres Kill Insects, A. Carpenter, C. Downes, L. Hansen, Mark D. Shelton, R. Lill

Office of the Dean (CAFES) Scholarship

The use of calorimetry as a tool to understand the effects of controlled atmospheres (CA) on insects is briefly reviewed. A variety of data are presented to illustrate the various types of information that calorimetry can make available to researchers. The use of a calorimeter connected to a mass spectrometer to determine the occurrence of anaerobic respiration is described and reported. We conclude that calorimetry is a useful tool to simplify the experimental options when developing new insecticidal CA treatments. It can also be used for development of other treatments such as fumigants.

Mustang Daily, October 26, 2000

Cal Poly Student Newspaper

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

Immaccs: An Experimental Multi-Agent C2 System, Jens G. Pohl, Anthony A. Wood, Kym Jason Pohl

Collaborative Agent Design (CAD) Research Center

The Integrated Marine Multi-Agent Command and Control System (IMMACCS) is a multi-agent, distributed software system, designed to provide a Common Tactical Picture (CTP) with integrated and meaningful decision-support facilities to authorized operators at any access node. IMMACCS has been implemented as a three-tier architecture that distinguishes between information, logic and presentation. It utilizes an object-serving communication facility with subscription and multi-casting capabilities that is based on the Common Object Request Broker Architecture (CORBA). With an emphasis on application, IMMACCS was designed and implemented in concert with its military users as an integral component of experiments conceived by the Marine Corps …

Academic Senate - Agenda, 10/24/2000, Academic Senate

Academic Senate Agendas

No abstract provided.

As-551-00 Resolution On 1999/00 Program Review And Improvement Committee Report Of Findings And Recommendations, Program Review And Improvement Committee

Academic Senate Resolutions

Receives and forwards the committee’s findings and recommendations for 1999-2000.

October 18, 2000 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Mustang Daily, October 11, 2000

Cal Poly Student Newspaper

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

Advancement

Cal Poly Magazine

No abstract provided.

In Memoriam

Cal Poly Magazine

No abstract provided.

University News

Cal Poly Magazine

No abstract provided.

September 20, 2000 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

September 11, 2000 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

An Unusual Pulse In Recruitment Of Two Reef Fishes In The Galápagos Islands Coincident With The 1997–1998 El Niño, Benjamin I. Ruttenberg

Biological Sciences

No abstract provided.

Cal Poly Magazine, Fall 2000

Cal Poly Magazine

No abstract provided.

The Effect Of Anisotrophy On The Potential Distribution In Biological Tissues And Its Impact On Nerve Excitation Simulations, Robert B. Szlavik, Hubert De Bruin

Biomedical Engineering

Presents a finite difference solution of the potential distribution associated with electrical current stimulation in an anisotropic in-homogeneous tissue environment and compare it to the isotropic case. The results demonstrate that there can be significant errors associated with the assumption of isotropic tissue properties in calculating the potential distribution along an axon in nerve excitation simulations. These errors can have a significant impact on predicted nerve fiber recruitment patterns when evaluating the efficacy of specific surface or intramuscular stimulus electrode configurations. The results of this study also suggest when a more comprehensive tissue model should be implemented in an electrode …