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The Biology Of Nonfrugivorous Tephritid Fruit Flies, David H. Headrick, Richard D. Goeden

Horticulture and Crop Science

This review is the first comprehensive treatment of the biology of nonfrugivorous fruit flies of the family Tephritidae. Feeding habits of destructive and useful species, morphology of immature stages, and hypotheses regarding structural homology and the evolutionary biology of nonfrugivorous tephritids are reviewed, including zoogeography and theories involving resource heterogeneity, guild structure, resource partitioning, resource utilization, facultative niche exploitation, extrinsic and intrinsic factors, host associations, seasonal distribution and phenology, aggregative and circumnatal life history strategies, voltinism, diapause, aestivation, oviposition site, clutch size, and supernumerary oviposition.

City Space + Globalization: An International Perspective, Hemalata Dandekar

City, Space, + Globalization presents ways in which globalization affects the built environment of people in cities around the world. Architects, urban planners, geographers, historians and sociologists address topics ranging from transportation to historic preservation, from housing for different population sectors to economic change and city growth patterns. A significant common element of these papers is their shared concern with the life space of city fabric, beyond economics, beyond world markets and world trade. This life space is the neighborhood and community space of city residents. It refers to memory, to history, to tradition in the face of homogenizing global …

Alcohol, Hormones, And Postmenopausal Women, Matthew P. Longnecker, Marilyn Tseng

Kinesiology and Public Health

Many women take supplemental estrogens after menopause, a practice called hormone replacement therapy (HRT). Moderate alcohol consumption may increase estrogen levels in women receiving HRT, potentially affecting their risk for various adverse health effects. Two recent studies, however, provide no strong evidence for an effect of alcohol on hormones in postmenopausal women. The possible association between alcohol consumption and risk of cancer of the breast does not appear to be mediated by estrogens. Both estrogens and moderate alcohol consumption have been associated with a decreased risk for cardiovascular disease; however, alcohol’s beneficial effect on heart disease does not appear to …

An Embedding Of Schwartz Distributions In The Algebra Of Asymptotic Functions, Michael Oberguggenberger, Todor D. Todorov

Mathematics

We present a solution of the problem of multiplication of Schwartz distributions by embedding the space of distributions into a differential algebra of generalized functions, called in the paper "asymptotic function," similar to but different from J. F Colombeau's algebras of new generalized functions.

Influence Of Ground Cover On Spider Populations In A Table Grape Vineyard, Michael J. Costello, Kent M. Daane

Horticulture and Crop Science

1. Cover crops and/or resident ground vegetation have been used in California vineyards to increase the number of predators and decrease the number of pestiferous herbivores. The most common resident predators in vineyards are spiders (Araneae). Several observational studies suggest that the addition of cover crops results in an increase in spider density and a decrease in insect pest densities. 2. To test experimentally the effects of cover crops and/or resident ground vegetation (hereafter collectively referred to as ground cover) on spider populations, a 3-year study was undertaken in a commercial vineyard. Large, replicated plots were established with and without …

Cochise, Brett B. Bodemer

Library Scholarship

No abstract provided.

Shadows Pool, Brett B. Bodemer

Library Scholarship

No abstract provided.

New Snow, Brett B. Bodemer

Library Scholarship

No abstract provided.

Snake, Brett B. Bodemer

Library Scholarship

No abstract provided.

My Methanol Motorcycle, Art Maccarley

Electrical Engineering

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Review Of The Future Of U.S. Nuclear Weapons Policy, David W. Hafemeister

Physics

No abstract provided.

How Much Reliability And Yield Is Enough For A Ctbt?, David W. Hafemeister

Physics

No abstract provided.

Biomineralization Of Magnetic Iron Minerals In Bacteria, Richard B. Frankel, Dennis A. Bazylinski, Dirk Schϋler

Physics

Magnetotactic bacteria orient and migrate along magnetic field lines. This ability is based on a submicron assembly of single-magnetic domain iron mineral particles that elegantly solves the problem of how to construct a magnetic dipole that is large enough to be oriented in the geomagnetic field at ambient temperature, yet fit inside a micron-sized cell. The solution is based on the ability of the bacteria to accumulate high concentrations of iron, and control the deposition, size and orientation of a specific iron mineral at specific locations in the cell.

Improved Proportional-Integral (Pi) Logic For Canal Automation, Charles M. Burt, R S. Mills, Ram Dhan Khalsa, V. C. Ruiz

BioResource and Agricultural Engineering

Successful implementation of Proportional-Integral (PI) control logic for gate automation on irrigation canals has been problematic because of difficulties in tuning the PI controllers for a wide range of flows. This research shows that successful and relatively simple tuning for upstream controllers can be accomplished if one uses the velocity form of the PI logic. The velocity form must be modified with a newly-developed Universal Factor (UF) concept, which accounts for the nonlinearity of the upstream water level response to gate movement. The UF function is unique for each check structure, and can be determined with a steady state simulation …

December 10, 1997 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Markovian Decision Control For Traffic Signal Systems, Xiao-Hua Yu, Allen R. Stubberud

Electrical Engineering

Setting signals at intersections to minimize the queue length and vehicle delay time is a key goal in traffic management. In this paper, a new control strategy for a signalized traffic intersection is developed by applying Markovian decision control theory. Statistical analysis of simulation results with different arrival rates indicate the excellent potential of this approach.

Probing The Intermolecular Hydrogen Bonding Of Water Molecules At The Ccl4/Water Interface In The Presence Of Charges Soluble Surfactant, D. E. Gragson, G. L. Richmond

Chemistry and Biochemistry

The molecular structure and hydrogen bonding of water molecules at the CCl₄/water interface in the presence of a charged soluble surfactant has been explored in this study using vibrational sum frequency generation. By examining OH stretching modes that are highly sensitive to the local hydrogen bonding environment it is found that water molecules at the CCl₄/water interface both in the presence and absence of a charged soluble surfactant are predominantly in a tetrahedral arrangement much like the structure ofice. Isotopic dilution studies have been employed to further characterize this icelike interfacial structure. Ablueshift ofapproximately120 cm^{-1 …}

Mustang Daily, December 5, 1997

Cal Poly Student Newspaper

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

Mustang Daily, December 4, 1997

Cal Poly Student Newspaper

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

December 3, 1997 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Mustang Daily, December 3, 1997

Cal Poly Student Newspaper

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

Academic Senate - Agenda, 12/2/1997, Academic Senate

Academic Senate Agendas

No abstract provided.

As-487-97 Resolution On Future Cal Poly Budgets, Budget And Long-Range Planning Committee

Academic Senate Resolutions

Support for academic programs should be given the highest priority in future budgets.

Academic Senate - Meeting Minutes, 12/2/1997, Academic Senate

Academic Senate Minutes

No abstract provided.

Mustang Daily, December 2, 1997

Cal Poly Student Newspaper

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

Mustang Daily, December 1, 1997

Cal Poly Student Newspaper

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

Formation Of A Metastable Bcc Solid Solution And Decomposition To A C15 Laves Phase In Melt-Spun Crnb10Ti10, Katherine C. Chen, P. G. Kotula, F. Chu, Dan J. Thoma

Materials Engineering

A metastable, disordered bcc phase has been formed from the melt in a Cr-rich alloy of the Nb-Cr-Ti system, where large volume fractions of the Laves phase would develop under equilibrium solidification conditions. X-ray diffraction (XRD) studies and lattice constant determinations confirm that the melt-spun ribbons contain a bcc phase beyond its terminal solid solution limits. Solidification pathways are proposed based upon metastable and equilibrium phase diagrams. Microstructures have been studied using optical microscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Cross-sectional TEM reveals tiny, dispersed Laves phase precipitates within the metastable bcc grains near the chill (wheel) …

Review Of Sexual Selection: Mate Choice And Courtship In Nature By James L. Gould And Carol Grant Gould, Marlene Zuk, Gita R. Kolluru, Kurt A. Mckean

Biological Sciences

No abstract provided.

Determination Of A Flexibility Range For Cellular Manufacturing Systems Under Product Mix Variations, Hamid Seifoddini, Manocher Djassemi

Industrial Technology and Packaging

One of the underlying assumptions in cellular manufacturing is that product mix is relatively stable over time. In this paper, a procedure for the sensitivity analysis of the performance of a cellular manufacturing system with respect to changes in the product mix is presented and a flexibility range representing the capability of the system in dealing with these changes is determined using simulation modelling. The simulation results in this study show that as the changes in the product mix increase the superiority of the performance of the cellular manufacturing system to the corresponding job shop system diminishes.

"Hands-On" Epicycles And Retrograde Motion, Matthew J. Moelter, Bernard A. Bates

Physics

No abstract provided.