Digital Commons Network^™

September 1, 1999 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Food Intake Patterns And Gallbladder Disease In Mexican Americans, Marilyn Tseng, Robert F. Devellis, Kurt R. Maurer, Meena Khare, Lenore Kohlmeier, James E. Everhart, Robert S. Sandler

Kinesiology and Public Health

Objective: Results of previous studies on diet and gallbladder disease (GBD), defined as having gallstones or having had surgery for gallstones, have been inconsistent. This research examined patterns of food intake in Mexican Americans and their associations with GBD. Design: Cross-sectional. Subjects: The study population included 4641 Mexican Americans aged 20±74 years who participated in the 1988±94 third National Health and Nutrition Examination Survey (NHANES III). GBD was diagnosed by ultrasound. Food intake patterns were identifed by principal components analysis based on food frequency questionnaire responses. Component scores representing the level of intake of each pattern were categorized into quartiles, …

Screen Printing Process Design Of Experiments For Fine Line Printing Of Thick Film Ceramic Substrates, Jianbiao Pan, Gregory L. Tonkay, Alejandro Quintero

Industrial and Manufacturing Engineering

Screen printing has been the dominant method of thick film deposition because of its low cost. Many experiments in industry have been done and many models of the printing process have been developed since the 1960's. With a growing need for denser packaging and a drive for higher pin count, screen printing has been refined to yield high resolution prints. However, fine line printing is still considered by industry to be difficult. In order to yield high resolution prints with high first pass yields and manufacturing throughput, the printing process must be controlled stringently.

This paper focuses on investigating the …

Makaira Sp., Cf. M. Nigricans Lacépède, 1802 (Teleostei: Perciformes: Istiophoridae) From The Late Miocene, Panama, And Its Probable Use Of The Panama Seaway, Harry L. Fierstine

Biological Sciences

A nearly complete rostrum (USNM 358534) similar in morphology to the extant bluc marlin, Makaira nigricans Lacepede 1802, is identified from the GaUln Formation (late Miocene, Panama). Identification is based on comparison with a large series of Recent istiophorid species and with fossil species of the genus Makaira. The Gatlin specimen and additional examples from other fossil vertebrates provide evidence that the ancient Panama Seaway probably was a travel route between the Atlantic and Indo-Pacific for large marine vertebrates during the middle Miocene to earliest Pliocene. This is the first record of an istiophorid billfish from the Gatlin Fonnation and …

Variation And Repeatability Of Calling Behavior In Crickets Subject To A Phonotactic Parasitoid Fly, Gita R. Kolluru

Biological Sciences

Male Teleogryllus oceanicus (Orthoptera: Gryllidae) produce a conspicuous calling song to attract females. In some populations, the song also attracts the phonotactic parasitoid fly Ormia ochracea (Diptera: Tachinidae). I examined the factors affecting calling song by characterizing the calling behavior of caged crickets from an area where the fly occurs. Calling activity (proportion of time spent calling) was repeatable and a significant predictor of female attraction. However, calling activity in the parasitized population was lower than in an unparasitized Moorea population (Orsak, 1988), suggesting a compromise between high activity to attract females and low activity to avoid flies. Calling activity …

Cal Poly Magazine, Fall 1999

Cal Poly Magazine

No abstract provided.

Applying Positive Behavioral Support And Functional Behavioral Assessment In Schools: Technical Assistance Guide, George Sugai, Robert H. Horner, Glen Dunlap, Meme Hieneman, Timothy J. Lewis, Michael C. Nelson, Terrance Scott, Carl Liaupsin, Wayne Sailor, Ann P. Turnbull, H. Rutherford Turnbull, Donna Wickham, Michael B. Ruef, Brennan Wilcox

Graduate Studies in Education

No abstract provided.

Summer Mustang, August 26, 1999

Cal Poly Student Newspaper

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

Summer Mustang, August 19, 1999

Cal Poly Student Newspaper

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

August 18, 1999 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Two New Topologically Ordered Glass Phases Of Smectics Confined In Anisotropic Random Media, Brad Jacobsen, Karl Saunders, Leo Radzihovsky, John Toner

Physics

Smectics in strained aerogel exhibit two new glassy phases. The strain both ensures the stability of these phases and determines their nature. One type of strain induces an “ XY Bragg glass,” while the other creates a novel, triaxially anisotropic “ m = 1 Bragg glass.” The latter exhibits anomalous elasticity, characterized by exponents that we calculate to high precision. We predict the phase diagram, and numerous other experimentally observable scaling laws, for the system.

Temporal Probabilistic Logic Programs, Alex Dekhtyar, Michael I. Dekhtyar, V. S. Subrahmanian

Computer Science and Software Engineering

There are many applications where the precise time at which an event will occur (or has occurred) is uncertain. Temporal probabilistic logic programs (TPLPs) allow a programmer to express knowledge about such events. In this paper, we develop a model theory, fixpoint theory, and proof theory for TPLPs, and show that the fixpoint theory may be used to enumerate consequences of a TPLP in a sound and complete manner. Likewise the proof theory provides a sound and complete inference system. Last, but not least, we provide complexity results for TPLPs, showing in particular, that reasonable classes of TPLPs have polynomial …

Summer Mustang, August 12, 1999

Cal Poly Student Newspaper

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

The Potential For Marketing Pork Products With Embedded Environmental Attributes: Results From An Experimental Study, Sean P. Hurley, James B. Kliebenstein

Agribusiness

Environmental issues such as air and water quality related to livestock production currently receive much attention. Potential methods for environmental improvement range from regulation to market solutions. This study looks at consumer willingness to pay for pork products with embedded environmental attributes. Experimental auctions showed that over one-half of the participants (62%) paid a premium, that did not vary significantly between differing regions of the United States. (JEL Codes Q13, Q25)

The Impacts Of Dairy Cattle Ownership On The Nutritional Status Of Preschool Children In Coastal Kenya, Charles F. Nicholson, Phillip K. Thornton

Agribusiness

In many parts of the developing world, the availability of sufficient food—food supplying sufficient daily energy and protein—remains a key challenge for many families, despite substantial increases in total food production in the past two decades. At present there is sufficient food produced to feed everyone in the world, but the available food is neither evenly distributed nor fully consumed. As a result, some 800 million people—200 million children— are food insecure, that is, they lack consistent access to the food required for a healthy and productive life (Pinstrup-Andersen, 1994). The roots of food insecurity and malnutrition are complex, but …

Impacts Of The Northeast Interstate Dairy Compact On New England Milk Supply, Charles F. Nicholson, Budy Resosudarmo, Rick Wackernagel

Agribusiness

During the first year of the Northeast Interstate Dairy Compact, milk production in the six New England states increased by about 57 million pounds, or about 1.3% of production compared to the 12 months prior to the Compact. Increases in milk production were largest in Connecticut (31 million pounds) and Vermont (21 million pounds), whereas Maine and New Hampshire experienced increases of less than 10 million pounds. Production in Massachusetts and Rhode Island declined by 9 million and 0.4 million pounds, respectively. Because the rate of increase for New England was larger than the US average, the Compact Commission incurred …

Summer Mustang, August 5, 1999

Cal Poly Student Newspaper

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

August 4, 1999 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Some Notions Of Complex Adaptive Systems And Their Relationship To Our World, Jens G. Pohl

Collaborative Agent Design (CAD) Research Center

This paper assumes that the world we live in consists of many interwoven complex adaptive systems. In the literature such systems are characterized as comprising many moving parts and processes that interact significantly in a mostly non-linear manner. It is argued that the forces that act on such complex systems are not additive, and that their impact occurs along non-linear interactions within the system. In particular, many of these systems are adaptive in that they change their behavior (through their interactions) over time, so that if they are subjected to a similar force or event a second time they …

The Second Generation Integrated Collaborative Decision Making (Icdm) Model: A Three-Tier Approach To Agent-Based, Decision-Support Systems, Kym J. Pohl, Jens G. Pohl

Collaborative Agent Design (CAD) Research Center

Ten years ago the CAD Research Center at California Polytechnic University in San Luis Obispo, California identified a standard framework for agent-based, decision support systems. Employing inter-process and inference engine technologies of the time, the CAD Research Center termed this ‘blueprint’ the Integrated Collaborative Decision-Making (ICDM) framework. Over the past twelve years ICDM has been successfully used as a foundation in several systems. These systems focus on a wide range of domains of application including architectural design and ship cargo stowage. Success of the ICDM framework in conjunction with the availability of newer technologies has prompted an evolutionary leap in …

Re-Engineering A Software Development Organization As A Complex Adaptive System, Steven J. Gollery, Jens G. Pohl

Collaborative Agent Design (CAD) Research Center

This paper proposes that it is possible and desirable to restructure a software development organization as a complex adaptive system. Such a structure would increase the possibility that the organization would be able to survive and prosper in a rapidly-changing market place by shortening response time, increasing flexibility in the face of new and unexpected circumstances, and allowing the organization to learn quickly from its experiences.

The paper shows how a common information repository can be used to provide decision support to developers and managers, and discusses the relationship between decision support systems and complex adaptive systems.

Conservation Implications Of Dietary Dilution From Debris Ingestion: Sublethal Effects In Post-Hatchling Loggerhead Sea Turtles, Shannon J. Mccauley, Karen A. Bjomdal

Biological Sciences

Ingestion of anthropogenic debris by marine species has been documented extensively; fewer studies have attempted to quantify the sublethal effects caused by debris ingestion. One potential sublethal effect is reduced nutrient gains from diets diluted by consumption of debris. Post-hatchling and juvenile loggerhead sea turtles (Caretta caretta) consume substantial quantities of debris. We evaluated the effects of dietary dilution on voluntary intake in post-hatchling loggerheads to assess their ability to compensate for the presence of inert diluents in their diet by increasing dry mass intakes to maintain nutrient gains. Mean daily intakes of dry mass did not increase …

Evaluation Of Caltrans District 10 Automated Warning System, Year Two Progress Report, Art Maccarley

Electrical Engineering

District 10 of the California Department of Transportation (Caltrans) encompasses an area of seasonal fog and dust-related visibility problems that have been the cause of numerous multi-car traffic collisions, many fatal. In 1990, motivated by the expansion of State Route 120 (SR 120) connecting Interstate Highway 5 (I-5) and State Route 99 (SR 99), Caltrans proposed a sophisticated multi-sensor automated warning system as a means for reducing incidents in this high-traffic area. This proposal, and the significant development effort that followed, culminated in the implementation of Phase 1 of the Caltrans Automated Warning System, or “CAWS”, which entered service in …

Induced Changes In Solvent Structure By Phospholipid Monolayer Formation At A Liquid–Liquid Interface, R. A. Walker, D. E. Gragson, G. L. Richmond

Chemistry and Biochemistry

Vibrational sum frequency spectroscopy has been used in conjunction with dynamic surface tension measurements to study formation of a 1,2-dilauroyl-sn-phosphatidylcholine (DLPC) monolayer at a water–carbon tetrachloride interface. Surface tension measurements show that an aqueous solution of liquid crystalline phosphocholine vesicles (4.5 μM DLPC) requires several hours to form a tightly packed, fully equilibrated monolayer of DLPC monomers. Vibrational spectra of the interfacial region at different stages in the monolayer formation process indicate that the solvent structure undergoes dramatic re-organization as the monolayer forms. Initial adsorption of DLPC monomers severely disrupts the interfacial hydrogen bonding. Intensity in the OH …

Care And Nutrition: Concepts And Measurement, Patrice L. Engle, Purnima Menon

Psychology and Child Development

Care is the provision in the household and the community of time, attention, and support to meet the physical, mental, and social needs of the growing child and other household members. The significance of care has best been articulated in the framework developed by the United Nations Children's Fund (UNICEF). This paper extends the UNICEF model of care and summarizes the literature on the relationship of care practices and resources to child nutrition. The paper also summarizes attempts to measure the various dimensions of care. The concept of care is extended in two directions: first, we define resources needed by …

Optimum Lifetime Planning Of Bridge Inspection And Repair Programs, Dan M. Frangopol, Allen C. Estes

Architectural Engineering

This study proposes a general methodology for determining the optimal lifetime planning of bridge inspection and repair programs based on minimizing the expected cost while maintaining an acceptable level of reliability. For individual bridges, this methodology determines the optimum inspection technique. and the numbers and timing of inspections and repairs. The methodology is demonstrated initially on a simple structure. Then. the method is applied to the optimial planning of inspection and repair programs for an existing bridge. The proposed approach to the problem of lifetime bridge maintenance is shown to be a viable method for optimizing inspection and repair investments …

A Pilot Study Of Exercise Training To Reduce Trunk Fat In Adults With Hiv-Associated Fat Redistribution, Ronenn Roubenoff, Lauren Weiss, Ann Mcdermott, Tanya Heflin, Gregory J. Cloutier, Michael Wood, Sherwood Gorbach

Kinesiology and Public Health

Body fat redistribution (‘lipodystrophy’), with gain in abdominal and trunk fat, and decline in facial and limb fat, is a newly recognized problem in patients with HIV infection that has been linked to use of HIV-1 protease inhibitors. Increased abdominal fat may predispose these patients to hypertension, diabetes, and coronary artery disease. At this time no effective treatment is available. We examined whether exercise training could reduce trunk fat in men with fat redistribution.

Summer Mustang, July 29, 1999

Cal Poly Student Newspaper

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

Summer Mustang, July 22, 1999

Cal Poly Student Newspaper

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

July 21, 1999 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.