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November 8, 1996 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

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Mustang Daily, November 6, 1996

Cal Poly Student Newspaper

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

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Preparing The Leaders For Mechatronics Education, Sema E. Alptekin

Industrial and Manufacturing Engineering

Mechatronics is the synergetic combination of precision mechanical engineering, electronic control and systems thinking in the design of products and processes. There is a need to develop interdisciplinary programs in Mechatronics that better prepare our graduates to design, build, and operate the products and systems of today and tomorrow. To address this need, National Science Foundation funded a project entitled "Preparing the Leaders for Mechatronics Education" undertaken by Cal Poly in 1995 - 1996. In this paper, the activities that took place during this two-year program is outlined. Several courses and course modules have already been developed and implemented by …

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Executive Committee - Meeting Minutes, 11/5/1996, Academic Senate

Academic Senate Minutes

No abstract provided.

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High-Resolution Time-Series Data For 1991/1992 Primary Production And Related Parameters At A Palmer Lter Coastal Site: Implications For Modeling Carbon Fixation In The Southern Ocean, Mark A. Moline, Barbara B. Prezelin

Biological Sciences

Our goal was to provide a high-resolution temporal data base for modeling primary production in shelf waters adjacent to Palmer Station, Antarctica. Here, the resulting 1991/1992 data base is used to: (1) determine in situ productivity over a range of seasonal to subseasonal time scales; (2) identify time scales of significant variability in marine productivity during the peak growing season; (3) identify environmental, experimental and analytical factors that can significantly impact the accuracy of daily, weekly and seasonal productivity estimates; and (4) integrate our findings with previous studies of Antarctic coastal primary pro- duction. Data were gathered every 2–3 days …

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Genetic And Social Control Of Male Maturation In Phallichthys Quadripunctatus (Pisces: Poeciliidae), Gita R. Kolluru, David N. Reznick

Biological Sciences

Age and size at maturity can have significant fitness consequences. Selection often favors early-maturing individuals because of their higher survival to maturity and greater relative contribution to population growth rate, but it may also favor delayed maturation if fitness increases with age or size at maturity. Males of several poeciliid fishes exhibit variation in age and size at maturity primarily controlled by a sex-linked gene called the P-locus. Wild-caught Phallichthys quadripunctatus males show a bimodal size distribution, which is often associated with a P-locus polymorphism in other poeciliids. We conducted two experiments to evaluate the inheritance of male age and …

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Pulsed Transient Tissue Conductivity Measurement, Robert B. Szlavik, Hubert De Bruin

Biomedical Engineering

The authors present an alternative technique for obtaining tissue conductivity as a function of frequency. Pulsed transient tissue impedance measurement differs significantly from other commonly used swept frequency techniques in that the conductivity of a tissue sample can be obtained from a voltage transient response to a current pulse. By obtaining the conductivity across a band of frequencies from a transient measurement, the necessity for direct conductivity measurements at each frequency point is eliminated. Calibration and verification of the technique was carried out by measuring the impedance magnitude and phase of simple RC circuit combinations. The authors present conductivity measurements …

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Spice Compatible Equivalent Circuit Models Of Skeletal Muscle Tissue, Robert B. Szlavik, Hubert De Bruin

Biomedical Engineering

The authors present equivalent circuit models of skeletal muscle tissue for the directions parallel and transverse to the fiber. The parallel model is based on a distributed parameter equivalent circuit approach where the tissue between the electrodes is divided into small segments, each of which is represented by an equivalent circuit. Parameters for the equivalent circuits me calculated from the electrical characteristics of the tissue components and their physical arrangement. The authors compare the conductivity frequency response of the equivalent circuit modelling approach to other models presented in the literature. The advantage to the authors' equivalent circuit approach is that …

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Mustang Daily, October 30, 1996

Cal Poly Student Newspaper

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

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Academic Senate - Agenda, 10/29/1996, Academic Senate

Academic Senate Agendas

No abstract provided.

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October 25, 1996 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

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Mustang Daily, October 24, 1996

Cal Poly Student Newspaper

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

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Mustang Daily, October 18, 1996

Cal Poly Student Newspaper

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

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Mustang Daily, October 10, 1996

Cal Poly Student Newspaper

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

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Academic Senate - Agenda, 10/8/1996, Academic Senate

Academic Senate Agendas

No abstract provided.

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Mustang Daily, October 7, 1996

Cal Poly Student Newspaper

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

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Mustang Daily, October 1, 1996

Cal Poly Student Newspaper

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

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Azorhizobium Caulinodans Uses Both Cytochrome Bd (Quinol) And Cytochrome Cbb3 (Cytochrome C) Terminal Oxidases For Symbiotic N2 Fixation, Alexandre Kaminski, Christopher L. Kitts, Zachary Zimmerman, Robert A. Ludwig

Biological Sciences

Azorhizobium caulinodans employs both cytochrome bd (cytbd; quinol oxidase) and cytcbb3 (cytc oxidase) as terminal oxidases in environments with very low O2 concentrations. To investigate physiological roles of these two terminal oxidases both in microaerobic culture and in symbiosis, knockout mutants were constructed. As evidenced by visible absorbance spectra taken from mutant bacteria carrying perfect gene replacements, both the cytbd- and cytcbb3- mutations were null alleles. In aerobic culture under 2% O2 atmosphere, Azorhizobium cytbd- and cytcbb3- single mutants both fixed N2 at 70 to 90% of wild-type rates; in root nodule symbiosis, both single mutants fixed N2 at 50% …

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Mustang Daily, September 30, 1996

Cal Poly Student Newspaper

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

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Mustang Daily, September 27, 1996

Cal Poly Student Newspaper

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

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Mustang Daily, September 26, 1996

Cal Poly Student Newspaper

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

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High-Power Broadly Tunable Picosecond Ir Laser System For Use In Nonlinear Spectroscopic Applications, D. E. Gragson, B. M. Mccarty, G. L. Richmond, D. S. Alavi

Chemistry and Biochemistry

We developed a high-power tunable picosecond IR laser system suitable for nonlinear spectroscopic investigations. We employ a Ti:sapphire regenerative amplifier that produces 1.9-ps, 17-cm⁻¹, 800-nm pulses at 1 kHz as a pump source. White-light generation in ethylene glycol and optical parametric amplification in potassium titanyl phosphate are used to produce the IR pulses. The tuning range extends from 2.4 to 3.8 μm in the idler and 1.0 to 1.2 μm in the signal. A total efficiency (signal plus idler) as high as 20% was achieved. The spatial, spectral, and temporal characteristics of the IR beam are presented along …

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Child Development: Vulnerability And Resilience, Patrice L. Engle, Sarah Castle, Purnima Menon

Psychology and Child Development

Many of the challenges facing children now are a function of changing times, including increase in urbanization, political violence, changing family forms, and in some areas decreased supplies of adequate food. This review focuses particularly on those changes in which children are the victims and which induce new threats for them, rather than on problems such as child disability or mental illness. The outcome variables of interest in this paper are dimensions of children's psychosocial development, including cognitive development, psychological adjustment and aggression, whereas the companion paper in this issue (Caldwell P., Child survival: vulnerability and resilience in adversity in …

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Osteonal Structure In The Equine Third Metacarpus, R. B. Martin, V. A. Gibson, S. M. Stover, J. C. Gibeling, L. V. Griffin

Biomedical Engineering

In studying the flexural fatigue properties of the equine third metacarpal (cannon) bone, we previously found that the dorsal region was weaker monotonically, but more fatigue resistant, than the lateral region. Fatigue resistance was associated with fracture surfaces which demonstrated that secondary osteons had “pulled out” of the surrounding matrix; this never happened in lateral specimens. We therefore became interested in the osteonal structure of this bone, and began to study its birefringence patterns in circularly polarized light. We found that the predominant type of secondary osteon was one in which only the outermost few lamellae were circumferential, with the …

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Resource Letter Belfef-1: Biological Effects Of Low-Frequency Electromagnetic Fields, David W. Hafemeister

Physics

This Resource Letter provides a guide to the literature on the interaction of extremely low-frequency electromagnetic field (ELF/EMF) interactions with biological matter, and on the possibility that such interactions could have a harmful effect on human health. Journal articles and books are cited for the following topics: ELF/EMF theoretical interactions with biological cells, organs and organisms, magnetic dipole interactions, sensing by animals, biomedical–biophysical experiments, epidemiology, and litigation–mitigation risk issues.

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July 19, 1996 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

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Summer Mustang, July 18, 1996

Cal Poly Student Newspaper

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

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Expression Of A Bovine Κ-Cn Cdna In The Mammary Gland Of Transgenic Mice Utilizing A Genomic Milk Protein Gene As An Expression Cassette, Alfonso Gutiérrez, Harry M. Meade, Paul Ditullio, Daniel Pollock, Merry Harvey, Rafael Jiménez-Flores, Gary B. Anderson, James D. Murray, Juan F. Medrano

Dairy Science

Transgenic mice were produced by microinjection of a DNA construct composed of the bovine κ-casein (κ-CN) cDNA under the control of the goat β-CN 5' promoter elements and 3' flanking regions into pronuclear-stage embryos. The gene construct targeted the expression of bovine κ-CN RNA to the mammary gland and secretion of bovine κ-CN in the milk. In the three lines studied (BC-7, BC-31 and BC-67) the transgene was stably integrated and propagated as a Mendelian locus. Expression of the bovine protein in lactating mice from the three transgenic lines was demonstrated by northern and western blots. In ten different tissues …

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Immunization Against Growth Hormone Releasing Factor Or Chronic Feed Restriction Initiated At 3.5 Months Of Age Reduces Ovarian Response To Pulsatile Administration Of Gonadotropin-Releasing Hormone At 6 Months Of Age And Delays Onset Of Puberty In Heifers, P. D. Schoppee, Jeffrey D. Armstrong, R. W. Harvey, M. D. Whitacre, A. Felix, R. M. Campbell

Office of the President Scholarship

A severe or moderate suppression of serum insulin-like growth factor I (IGF-I) was induced in heifers, beginning at 104 days of age, by active immunization against growth hormone-releasing factor (GRFi) or by chronic feed restriction (RES), respectively. We hypothesized that reduced serum IGF-I results in decreased serum estradiol-17 beta (E2), which in turn delays onset of puberty. The objectives of this experiment were to determine 1) whether GRFi and RES would alter follicular development and delay onset of puberty through similar mechanisms, and 2) whether GnRH would enhance follicular growth in control, GRFi, and RES heifers at 6 mo of …

Full-Text Articles in Entire DC Network

November 8, 1996 Cal Poly Report, Public Affairs Office

Cal Poly Report

Mustang Daily, November 6, 1996

Cal Poly Student Newspaper

Preparing The Leaders For Mechatronics Education, Sema E. Alptekin

Industrial and Manufacturing Engineering

Executive Committee - Meeting Minutes, 11/5/1996, Academic Senate

Academic Senate Minutes

High-Resolution Time-Series Data For 1991/1992 Primary Production And Related Parameters At A Palmer Lter Coastal Site: Implications For Modeling Carbon Fixation In The Southern Ocean, Mark A. Moline, Barbara B. Prezelin

Biological Sciences

Genetic And Social Control Of Male Maturation In Phallichthys Quadripunctatus (Pisces: Poeciliidae), Gita R. Kolluru, David N. Reznick

Biological Sciences

Pulsed Transient Tissue Conductivity Measurement, Robert B. Szlavik, Hubert De Bruin

Biomedical Engineering

Spice Compatible Equivalent Circuit Models Of Skeletal Muscle Tissue, Robert B. Szlavik, Hubert De Bruin

Biomedical Engineering

Mustang Daily, October 30, 1996

Cal Poly Student Newspaper

Academic Senate - Agenda, 10/29/1996, Academic Senate

Academic Senate Agendas

October 25, 1996 Cal Poly Report, Public Affairs Office

Cal Poly Report

Mustang Daily, October 24, 1996

Cal Poly Student Newspaper

Mustang Daily, October 18, 1996

Cal Poly Student Newspaper

Mustang Daily, October 10, 1996

Cal Poly Student Newspaper

Academic Senate - Agenda, 10/8/1996, Academic Senate

Academic Senate Agendas

Mustang Daily, October 7, 1996

Cal Poly Student Newspaper

Mustang Daily, October 1, 1996

Cal Poly Student Newspaper

Azorhizobium Caulinodans Uses Both Cytochrome Bd (Quinol) And Cytochrome Cbb3 (Cytochrome C) Terminal Oxidases For Symbiotic N2 Fixation, Alexandre Kaminski, Christopher L. Kitts, Zachary Zimmerman, Robert A. Ludwig

Biological Sciences

Mustang Daily, September 30, 1996

Cal Poly Student Newspaper

Mustang Daily, September 27, 1996

Cal Poly Student Newspaper

Mustang Daily, September 26, 1996

Cal Poly Student Newspaper

High-Power Broadly Tunable Picosecond Ir Laser System For Use In Nonlinear Spectroscopic Applications, D. E. Gragson, B. M. Mccarty, G. L. Richmond, D. S. Alavi

Chemistry and Biochemistry

Child Development: Vulnerability And Resilience, Patrice L. Engle, Sarah Castle, Purnima Menon

Psychology and Child Development

Osteonal Structure In The Equine Third Metacarpus, R. B. Martin, V. A. Gibson, S. M. Stover, J. C. Gibeling, L. V. Griffin

Biomedical Engineering

Resource Letter Belfef-1: Biological Effects Of Low-Frequency Electromagnetic Fields, David W. Hafemeister

Physics

July 19, 1996 Cal Poly Report, Public Affairs Office

Cal Poly Report

Summer Mustang, July 18, 1996

Cal Poly Student Newspaper

Expression Of A Bovine Κ-Cn Cdna In The Mammary Gland Of Transgenic Mice Utilizing A Genomic Milk Protein Gene As An Expression Cassette, Alfonso Gutiérrez, Harry M. Meade, Paul Ditullio, Daniel Pollock, Merry Harvey, Rafael Jiménez-Flores, Gary B. Anderson, James D. Murray, Juan F. Medrano

Dairy Science

Office of the President Scholarship

June 7, 1996 Cal Poly Report, Public Affairs Office

Cal Poly Report