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Articles 4681 - 4710 of 8069
Full-Text Articles in Entire DC Network
Autoregressive Moving Average Models Of Conifer Crown Profiles, Samantha J. Gill, Gregory S. Biging
Autoregressive Moving Average Models Of Conifer Crown Profiles, Samantha J. Gill, Gregory S. Biging
Natural Resources Management and Environmental Sciences
A time-series autoregressive moving average (ARMA) approach was used to develop stochastic models of tree crown profiles for five conifer species of the Sierran mixed conifer habitat type. Models consisted of three components: (1) a polynomial trend; (2) an ARMA model; and (3) random error. A Bayesian information criterion was used to evaluate alternative models. It was found that 70% of the crown profiles could be modeled using first-order ARMA [AR(1) or MA(1)] models, and that an additional 25% could be modeled using a white noise model [(AR(0)]. When the coefficients of the ARMA models were statistically significant, the models …
Assessment Of Fungal Diversity Using Terminal Restriction Fragment (Trf) Pattern Analysis: Comparison Of 18s And Its Ribosomal Regions, N. S. Lord, Christopher W. Kaplan, P. Shank, Christopher L. Kitts, Susan L. Elrod
Assessment Of Fungal Diversity Using Terminal Restriction Fragment (Trf) Pattern Analysis: Comparison Of 18s And Its Ribosomal Regions, N. S. Lord, Christopher W. Kaplan, P. Shank, Christopher L. Kitts, Susan L. Elrod
Biological Sciences
Assessment of fungal diversity in environmental samples is currently a challenge. Several recently developed molecular methods offer new avenues for determining the presence and diversity of fungi in complex microbial communities. Terminal restriction fragment (TRF) pattern analysis was tested as a method for assessing the fungal molecular diversity of a terrestrial microbial community. Community DNA was isolated from sand samples taken from a pilot-scale petroleum-contaminated land treatment unit. PCR amplification was carried out using primers, one of which was fluorescently labeled, designed to hybridize to conserved sequences in the fungal ribosomal small subunit (18S) or the internal transcribed spacer ITS1–5.8S–ITS2 …
Mustang Daily, November 26, 2002
Mustang Daily, November 26, 2002
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, November 22, 2002
Mustang Daily, November 22, 2002
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, November 14, 2002
Mustang Daily, November 14, 2002
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Livestock Land Use Change, And Environmental Outcomes, Robert W. Blake, Charles F. Nicholson
Livestock Land Use Change, And Environmental Outcomes, Robert W. Blake, Charles F. Nicholson
Agribusiness
Rapid predicted worldwide growth in demand for animal products to 2020—the so-called “next food revolution” in animal agriculture—portends complex interactions among people, biological and geophysical resources, and economic objectives. A restructuring of global food demands is expected: in contrast to current patterns, most (>60%) global production of meat and milk will be consumed by households in the developing countries (Delgado et al., 1999). The key drivers of this change are income growth, population growth, urbanization, and increased opportunities for trade. We identified some of the environmental risks, and recuperative effects, of animal agriculture in a recent article (Nicholson et …
Mustang Daily, November 6, 2002
Mustang Daily, November 6, 2002
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, October 31, 2002
Mustang Daily, October 31, 2002
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Academic Senate - Agenda, 10/29/2002, Academic Senate
Academic Senate - Agenda, 10/29/2002, Academic Senate
Academic Senate Agendas
No abstract provided.
Mustang Daily, October 25, 2002
Mustang Daily, October 25, 2002
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, October 23, 2002
Mustang Daily, October 23, 2002
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
The Impact Of Variations In Membrane Capacitance On The Detected Neural-Electronic Signal, Robert B. Szlavik
The Impact Of Variations In Membrane Capacitance On The Detected Neural-Electronic Signal, Robert B. Szlavik
Biomedical Engineering
There have been various theoretical and experimental studies presented in the literature that focus on interfacing neurons with discrete electronic devices such as transistors. The demonstrated lack of reproducible fidelity of the nerve cell action potential at the device junction would make it impractical to implement these devices in any neural prosthetic application where reliable detection of the action potential was a pre-requisite. In this study, the impact of typical variations in membrane capacitance on the detected neural signal is investigated.
Mustang Daily, October 21, 2002
Mustang Daily, October 21, 2002
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, October 17, 2002
Mustang Daily, October 17, 2002
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Executive Committee - Agenda, 10/15/2002, Academic Senate
Executive Committee - Agenda, 10/15/2002, Academic Senate
Academic Senate Agendas
No abstract provided.
Mustang Daily, October 14, 2002
Mustang Daily, October 14, 2002
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, October 10, 2002
Mustang Daily, October 10, 2002
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, October 3, 2002
Mustang Daily, October 3, 2002
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
October 2, 2002 Cal Poly Report Digest, Public Affairs Office
October 2, 2002 Cal Poly Report Digest, Public Affairs Office
Cal Poly Report
No abstract provided.
High-Temperature Controlled Atmosphere For Post-Harvest Control Of Indian Meal Moth (Lepidoptera: Pyralidae) On Preserved Flowers, Jodi A. Sauer, Mark D. Shelton
High-Temperature Controlled Atmosphere For Post-Harvest Control Of Indian Meal Moth (Lepidoptera: Pyralidae) On Preserved Flowers, Jodi A. Sauer, Mark D. Shelton
Office of the Dean (CAFES) Scholarship
High carbon dioxide atmospheres combined with high temperature were effective for controlling Indian meal moth, Plodia interpunctella (Hübner) pupae. Pupae were exposed to atmospheres of 60, 80, or 98% carbon dioxide (CO2) in nitrogen (N2), or 60 or 80% CO2in air at temperatures of 26.7°C or 32.2°C and 60% RH. Controlled atmosphere treatments at 32.2°C controlled pupae faster than the same treatments at the lower temperature. At both temperatures high CO2 concentration treatments combined with nitrogen killed pupae faster than high CO2 concentration treatments combined with air. Exposure to 80% carbon dioxide …
Academic Senate - Agenda, 10/1/2002, Academic Senate
Academic Senate - Agenda, 10/1/2002, Academic Senate
Academic Senate Agendas
No abstract provided.
Fall 2002 Polyview, Office Of Institutional Planning & Analysis
Fall 2002 Polyview, Office Of Institutional Planning & Analysis
Office of Institutional Research
The PolyView is a short publication containing enrollment, graduation, and student demographic data that is published after fall quarter classes.
Mustang Daily, September 30, 2002
Mustang Daily, September 30, 2002
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
September 25, 2002 Cal Poly Report Digest, Public Affairs Office
September 25, 2002 Cal Poly Report Digest, Public Affairs Office
Cal Poly Report
No abstract provided.
Mustang Daily, September 23-25, 2002
Mustang Daily, September 23-25, 2002
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Nearshore Physical Processes And Bio-Optical Properties In The New York Bight, G. C. Chang, T. D. Dickey, Oscar M. Schofield, A. D. Weidemann, E. Boss, W. S. Pegau, Mark A. Moline, Scott M. Glenn
Nearshore Physical Processes And Bio-Optical Properties In The New York Bight, G. C. Chang, T. D. Dickey, Oscar M. Schofield, A. D. Weidemann, E. Boss, W. S. Pegau, Mark A. Moline, Scott M. Glenn
Biological Sciences
Temporal and spatial variability of physical, biological, and optical properties on scales of minutes to months and meters to ~50 km are examined using an extensive data set collected on the New York Bight continental shelf during the Hyperspectral Coastal Ocean Dynamics Experiment. Measurements from a midshelf mooring and bottom tripod (~25 km offshore, 24 m water depth) and two nearshore profiling nodes (~5 km offshore, 15 m water depth) are utilized to quantify and correlate midshelf and nearshore variability. Towed shipboard undulating profilers and a high-frequency radar (CODAR) array provide complementary spatial data. We show that phytoplankton and dissolved …
September 18, 2002 Cal Poly Report Digest, Public Affairs Office
September 18, 2002 Cal Poly Report Digest, Public Affairs Office
Cal Poly Report
No abstract provided.
Proceedings Of The 2002 Onr Decision-Support Workshop Series: Transformation..., Collaborative Agent Design Research Center
Proceedings Of The 2002 Onr Decision-Support Workshop Series: Transformation..., Collaborative Agent Design Research Center
Collaborative Agent Design (CAD) Research Center
In August of 1998 the Collaborative Agent Design Research Center (CADRC) of the California Polytechnic State University in San Luis Obispo (Cal Poly), approached Dr. Phillip Abraham of the Office of Naval Research (ONR) with the proposal for an annual workshop focusing on emerging concepts in decision-support systems for military applications. The proposal was considered timely by the ONR Logistics Program Office for at least two reasons. First, rapid advances in information systems technology over the past decade had produced distributed, collaborative computer-assistance capabilities with profound potential for providing meaningful support to military decision makers. Indeed, some systems based on …
September 16, 2002 Cal Poly Report Digest, Public Affairs Office
September 16, 2002 Cal Poly Report Digest, Public Affairs Office
Cal Poly Report
No abstract provided.
Reduced Reproductive Effort In Male Field Crickets Infested With Parasitoid Fly Larvae, Gita R. Kolluru, Marlene Zuk, Mark A. Chappell
Reduced Reproductive Effort In Male Field Crickets Infested With Parasitoid Fly Larvae, Gita R. Kolluru, Marlene Zuk, Mark A. Chappell
Biological Sciences
Some populations of the field cricket Teleogryllus oceanicus are parasitized by the phonotactic fly Ormia ochracea. Flies locate crickets by their song and deposit larvae onto them. The larvae develop inside the cricket for 1 week before killing the host upon emergence. The reproductive compensation hypothesis predicts that parasitized crickets should increase their reproductive effort during the initial stages of infestation to offset the loss of fitness resulting from their shortened life span. An alternative hypothesis predicts that parasitized crickets will decrease reproduction, either because they are unable to reproduce or because selection acting on the parasitoid favors decreased …