Digital Commons Network^™

Genomes, Gould, And Emergence, Ursula Goodenough

Biology Faculty Research

The publication of the human genome has elicited commentary to the effect that, since fewer genes were identified than anticipated, it follows that genes are less important to human biology than anticipated. The flaws in this syllogism are explained in the context of a treatise on how genomes operate and evolve and how genes function to produce embryos and brains. Most of our most cherished human traits are the result of the emergence of new properties from preexisting genetically scripted ideas, offering countless opportunities to celebrate the evolutionary process.

Public Perceptions Of Genetically Engineered Foods: Playing God Or Trusting Science, Michael D. Mehta

RISK: Health, Safety & Environment (1990-2002)

The author considers whether levels of religiosity or scientism affect public perceptions of genetically engineered foods.

Functional And Structural Adaptations Of Skeletal Muscle To Microgravity, Robert H. Fitts, Danny R. Riley, Jeffrey J. Widrick

Biological Sciences Faculty Research and Publications

Our purpose is to summarize the major effects of space travel on skeletal muscle with particular emphasis on factors that alter function. The primary deleterious changes are muscle atrophy and the associated decline in peak force and power. Studies on both rats and humans demonstrate a rapid loss of cell mass with microgravity. In rats, a reduction in muscle mass of up to 37% was observed within 1 week. For both species, the antigravity soleus muscle showed greater atrophy than the fast-twitch gastrocnemius. However, in the rat, the slow type I fibers atrophied more than the fast type II fibers, …

Observations Of Scent-Marking And Discriminating Self From Others By A Domestic Dog (Canis Familiaris): Tales Of Displaced Yellow Snow, Marc Bekoff

Ethology Collection

Little is known about what stimuli trigger urinating or scent-marking in domestic dogs, Canis familiaris, or their wild relatives. While it is often suggested that the urine of other animals influences urinating and scent-marking patterns in canids, this has not been verified experimentally. To investigate the role of urine in eliciting urinating and marking, in this pilot study I moved urine-saturated snow (‘yellow snow’) from place-to-place during five winters to compare the responses of an adult male domestic dog, Jethro, to his own and others’ urine. Jethro spent less time sniffing his own urine than that of other males or …

Assessing The ‘Whole Animal’: A Free Choice Profiling Approach, Françoise Wemelsfelder, Tony E.A. Hunter, Michael T. Mendl, Alistair B. Lawrence

Sentience Collection

The qualitative assessment of animal behaviour summarizes the different aspects of an animal’s dynamic style of interaction with the environment, using descriptors such as ‘confident’, ‘nervous’, ‘calm’ or ‘excitable’. Scientists frequently use such terms in studies of animal personality and temperament, but, wary of anthropomorphism, are reluctant to do so in studies of animal welfare. We hypothesize that qualitative behaviour assessment, in describing behaviour as an expressive process, may have a stronger observational foundation than is currently recognized, and may be of use as an integrative welfare assessment tool. To test this hypothesis, we investigated the inter- and intraobserver reliability …

Disordered Eating And Its Psychosocial Correlates Among Hispanic Adolescent Females, Annette Santiago

All-Inclusive List of Electronic Theses and Dissertations

This study investigated the incidence of disordered eating and its relationship with acculturation, depression, and body dissatisfaction among Hispanic adolescent females. One hundred and five students enrolled at two midwestem high schools completed a Student Demographic Questionnaire, the Bidimensional Acculturation Scale for Hispanics (Marin & Gamba, 1996), the Beck Depression Inventory (Beck, Steer, & Brown, 1996), the Body Dissatisfaction Subscale of the Eating Disorder Inventory (Gamer, Olmstead, & Polivy, 1983), and the Eating Attitudes Test (Gamer, Olmstead, Bohr, & Garfinkel, 1982). Two null hypotheses were examined. The first investigated the relationship among acculturation, depression, body dissatisfaction, and disordered eating utilizing …

Trends. Environmental Issues: Struggles To Think Globally, Ibpp Editor

International Bulletin of Political Psychology

This article discusses the difficulties of thinking globally in the context of environmentalism and environmental policy, even for proponents of environmental stewardship.

The Neuropeptide Y Y5 Receptor Mediates The Blockade Of "Photic-Like" Nmda-Induced Phase Shifts In The Golden Hamster, P. C. Yannielli, Mary E. Harrington

Psychology: Faculty Publications

Circadian or daily rhythms generated from the mammalian suprachiasmatic nuclei (SCN) of the hypothalamus can be synchronized by light and nonphotic stimuli. Whereas glutamate mediates photic information, nonphotic information can in some cases be mediated by neuropeptide Y (NPY) or serotonin. NPY or serotonin can reduce the phase-resetting effect of light or glutamate; however, the mechanisms and level of interaction of these two kinds of stimuli are unknown. Here we investigate the effect of NPY on the NMDA-induced phase shift of the hamster SCN circadian neural activity rhythm by means of single-unit recording techniques. NMDA (10-100 μM) applied in the …

Santa Clara Magazine, Volume 43 Number 1, Summer 2001, Santa Clara University

Santa Clara Magazine

2 - 150TH ANNIVERSARY MEMORIES In honor of SCU's sesquicentennial year, alumni reflect on their Bronco experiences.

4 - "SHEN FU" LEARNED THE GRACE OF ANGER By Tennant Wright, S.J. A friend shares his memories of Philip Oliger, S.J., who taught him that "passion is the sign that we are alive."

14 - WINGING IT By Adam Breen. Professor Bill Stover is a volunteer pilot for The Flying Doctors, a humanitarian group that brings free basic health and dental care to underprivileged communities in Mexico.

18 - SAVING GRACE By Elizabeth Kelly Gillogly '93. Santa Clara University's 150 years come …

Organic Grapes And Wine : A Guide To Production, Gerry Parlevliet, Steven Mccoy

Bulletins 4000 -

The tastebuds, health concerns and environmental conscience of affluent consumers are demanding more organically grown food than producers worldwide can supply. Growing consumer concerns about the effects of synthetic chemical pesticides and fertilisers on human health and the environment have boosted world trade in organic products by a rate of about 20-30 per cent a year for the past 10 years. World trade was estimated to be worth $US 21.6 billion in 2000 and is expected to reach US$100 billion by the year 2006.

The Australian market for organic products alone is valued at $200-$250 million - with exports estimated …

Mammalian Play: Training For The Unexpected, Marek Špinka, Ruth C. Newberry, Marc Bekoff

Ethology Collection

In this review, we present a new conceptual framework for the study of play behavior, a hitherto puzzling array of seemingly purposeless and unrelated behavioral elements that are recognizable as play throughout the mammalian lineage. Our major new functional hypothesis is that play enables animals to develop flexible kinematic and emotional responses to unexpected events in which they experience a sudden loss of control. Specifically, we propose that play functions to increase the versatility of movements used to recover from sudden shock such as loss of balance and falling over, and to enhance the ability of animals to cope emotionally …

Ionic Mechanisms Underlying Repetitive High-Frequency Burst Firing In Supragranular Cortical Neurons, Joshua C. Brumberg, Lionel G. Nowak, David A. Mccormick

Publications and Research

Neocortical neurons in awake, behaving animals can generate high-frequency (.300 Hz) bursts of action potentials, either in single bursts or in a repetitive manner. Intracellular recordings of layer II/III pyramidal neurons were obtained from adult ferret visual cortical slices maintained in vitro to investigate the ionic mechanisms by which a subgroup of these cells generates repetitive, high-frequency burst discharges, a pattern referred to as “chattering.” The generation of each but the first action potential in a burst was dependent on the critical interplay between the afterhyperpolarizations (AHPs) and afterdepolarizations (ADPs) that followed each action potential. The spike after depolarization and …

Ecology Of Audubon's Shearwaters (Puffinus Lherminieri) At San Salvador, Bahamas, Neville Anthony Trimm Jr.

Loma Linda University Electronic Theses, Dissertations & Projects

The Audubon's Shearwater (Pqffinus lherminieri), nearly pantropical in distribution, remains a poorly studied species. The subspecies P. l. lherminieri is endemic to the West Indies region. An estimated 5,000 pairs inhabit the Caribbean, but there has been a substantial decline with many colonies becoming extirpated. It is thought that as many as 3,000 pairs (60% of the West Indian population) nest in the Bahamas. In May and June of 2000, I collected data on shearwater demographics, colony site selection, burrow microhabitat, chick behavior and the effect of moonlight on the onset of calling of the Audubon's Shearwaters nesting on …

Mirror Self-Recognition In The Bottlenose Dolphin: A Case Of Cognitive Convergence, Diana Reiss, Lori Marino

Sentience Collection

The ability to recognize oneself in a mirror is an exceedingly rare capacity in the animal kingdom. To date, only humans and great apes have shown convincing evidence of mirror self-recognition. Two dolphins were exposed to reflective surfaces, and both demonstrated responses consistent with the use of the mirror to investigate marked parts of the body. This ability to use a mirror to inspect parts of the body is a striking example of evolutionary convergence with great apes and humans.

The Impact Of Hiv/Aids On Food Production (Focusing Mainly On Rural Farms In Sub-Saharan Africa) And The Effects On The Supply, Demand, And Wages Of Farm Labor, Muhammad Zubair Qamar

Theses & Honors Papers

Utilizing empirical data from studies conducted mainly by international organizations, such as the UNAIDS and the Food and Agriculture Organization , the thesis aims to strengthen the hypothesis that the higher the frequency of HIVIAIDS, mainly in rural African farm communities, the higher the impact there is on food production. Moreover, the supply, demand, and wages of farm labor are also affected by HIV/AIDS. To give a background of the conditions of disease, the first part of the thesis gives an overview of the history of disease. The history and possible origins of HIV/AIDS are delved into, after …

Phylogenetic Relationships, Taxonomy, And Evolution Of Host Choice In Diadasia (Hymenoptera: Apoidea), Sedonia D. Sipes

Biology

I examined the phylogenetic relationships, taxonomy, and evolution of host choice in Diadasia, a genus of New World bees. Diadasia species are particularly interesting because they are considered pollen specialists. Females of each species are believed to provision their nests with pollen from only a few closely related plant taxa. At the same time, the choice of floral hosts within the genus is diverse, and includes five distantly related plant families: Malvaceae, Onagraceae, Convolvulaceae, Asteraceae, and Cactaceae. To estimate phylogenetic relationships within this group, I sequenced ~ 2 kb of the mitochondrial genes CO I and II and tRNA …

Variations In The Histamine Content Of Mink Testes Due To Injections Of Gonadotrophic Hormones And Application Of Free Radicals In Vitro, Grant I. Wilson

Biology

It was hypothesized that gonadotropic hormones and oxygen-derived free radicals affect histamine production in the testes. Luteinizing hormone, follicle stimulating hormone, prolactin, a combination of these three hormones, or saline (controls) were injected for either 4 or 7 days into seven wild-type (demi) and seven dark male mink per group. All mink were euthanized with carbon monoxide. Their testes were removed and frozen on dry ice. The histamine content was analyzed using radioimmunoassay. The control wild-type mink injected for either 4 or 7 days had histamine values of 8.15 μg/g and 7.56 μg/g, respectively. In wild-type mink, there was no …

Rangeland Resources Monitoring: Concepts And Practical Applications, Benny R. Bobwski

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

How does one person manage and monitor a half million acres of rangelands towards a sustainable future? Through a journey that begins with the understanding of sustainability, I explore the monitoring concept, two of its applications, and summarize with an emphasis on the art and science of management. Sustainability is a concept that confuses many managers because it is so complex. However, if one considers adaptability as the complement to sustainability, and realizes that an adaptable organism is a sustainable organism, then a manager can relate because the emphasis shifts from that of stability for the future to that of …

Patterns Of Avian Productivity Indices At Santa Ana National Wildlife Refuge (1995–1999), Tina Louise Gallegos

Theses and Dissertations - UTB/UTPA

I examined demographic parameters at Santa Ana National Wildlife Refuge, 1995–1999 utilizing Monitoring Avian Productivity and Survivorship protocol. The Olive Sparrow was the species most frequently captured. The capture rate of adult and young birds remained fairly steady over the years and no significant linear trends were observed. Productivity was highest in 1997, which influenced the number of adults captured in 1998, and was significantly related to annual rainfall. Mean total capture rates were higher at the Highland station than the Resaca station. Demographic comparisons between mist nets and point counts were variable, suggesting that both sampling techniques have their …

Economic Impact Of Snowmobiling In Utah, Ikuko Fujisaki

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to estimate statewide and local economic impact resulting from snowmobiling activities in Utah to gain a better understanding of preferences and opinions of Utah snowmobilers. The results will provide valuable information for snowmobiling management.

The survey instrument was designed to describe trip behavior, snowmobiling-related trip and annual expenditures, level of satisfaction with Utah snowmobiling opportunities, and demographics. A telephone survey was conducted with randomly selected households with registered snowmobiles during the period from April to June 2000. A 54.5% response rate yielded 373 usable completed questionnaires for data analysis.

For economic impact analysis, an …

Factors Influencing Milk Consumption In An Elementary School Lunch Program, Andrea G. Payne

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

This study investigated milk consumption in an elementary school and whether it could be affected by milk temperature and/or nutrition education. This study was of interest because of the increasing amount of nutritionally related diseases, and the effect that calcium intake could have in diminishing some of those diseases. It was also of interest because the younger generation is drinking less milk and more soda, therefore setting themselves up for nutritionally related diseases later in life.

The study was conducted at an elementary school containing grades K-5. The study was conducted Monday through Friday for a seven week time period. …

Leader In Love Ii, Ibpp Editor

International Bulletin of Political Psychology

This article continues the analysis of the political consequences of leaders in love.

Capitalism And The Value Of Life: Foot-And-Mouth And The Culling Of Herds, Ibpp Editor

International Bulletin of Political Psychology

This article describes some psychological implications of culling as an intervention to help combat the spread of foot-and-mouth disease.

Santa Clara Magazine, Volume 42 Number 4, Spring 2001, Santa Clara University

Santa Clara Magazine

3 - EL SOL SHINED IN 1968 STUDENT ELECTIONS By Adam Breen. During the 1968 campus elections, an electrical engineering student felt the student body was too apathetic, so he ran for dictator to spur interest. He could have been king, but instead had himself "assassinated " for a greater cause.

12 - DOUBLE LIVES By Susan Vogel. An economic boom in Silicon Valley created opportunities, jobs, and wealth-but those who work here often can't afford to live here. What are employees and employers doing about it?

16 - THE GLACIER PRIEST By Jeff Kunkel. Bernard Hubbard, S.J., was more …

Determinants Of Teachers' Intentions To Teach Physically Active Physical Education Classes, Jeffrey J. Martin, Pamela Hodges Kulinna, Robert C. Eklund, Brett Reed

Kinesiology, Health and Sport Studies

The purpose of the present investigation was to examine determinants of teachers' intentions to teach physically active physical education classes (i.e., spend at least 50% of class time with the students engaged in moderate to vigorous physical activity). Based on the theories of reasoned action, planned behavior, and self-efficacy, a model was examined hypothesizing that teachers' intentions were determined by subjective norm, attitude, perceived behavioral control, and self-efficacy. Using hierarchical regression analyses, the theories of reasoned action and planned behavior were supported by accounting for 65% of the variance in intention due to the main effects of attitude and subjective …

A "Frozen Exception" For The Frozen Embryo: The Davis "Reasonable Alternatives Exception", Jennifer L. Medenwald

Indiana Law Journal

No abstract provided.

In Support Of A Rationally Managed Fishery: Age And Growth In Patagonian Toothfish (Dissostichus Eleginoides), Julian R. Ashford

Biological Sciences Theses & Dissertations

Patagonian toothfish (Dissostichus eleginoides) occur on the continental shelves and shelf breaks of southern South America and the Southern Ocean. Stock structure, critical to good fisheries management, can be inferred from growth differences between areas, but available growth data are compromised by inconsistencies in age estimation methods, sampling and sample sizes, and techniques used to derive estimates. I asked the scientific question: how is growth in Patagonian toothfish structured spatially within the Southern Ocean? I developed a multi-stage randomized design to sample fish caught by commercial longline, and an age estimation methodology. Because toothfish are difficult to age, …

Childhood Obesity And Its Relationship To Sedentary Behavior Patterns Vs. Other Independent Risk Factors Of Obesity Among Navy Dependent Adolescents, Shaye Lauren Arluk

Human Movement Studies & Special Education Theses & Dissertations

Background According to data gathered in the NHANES 1999 survey 14% of American children are now classified as obese, a 60% increase in prevalence from the NHANES II survey in 1976. Multiple research studies have looked at the role of dietary intake, heredity, and physical activity participation as independent risk factors of obesity with mixed results. However, sedentary behavior patterns, which have markedly increased in the past ten years, have not been extensively studied in relation to childhood obesity. The goal of this study was to focus on the relationship between various sedentary behaviors and childhood obesity.

Methods Two descriptive …

2001 - The Sixth Annual Symposium Of Student Scholars

Symposium of Student Scholars Program Books

The full program book from the Sixth Annual Symposium of Student Scholars, held on March 30, 2001. Includes abstracts from the presentations and posters.

Trends. The Psycho-Politics Of Foot In Mouth On Foot In Mouth: Pigs, Sheep, Cows, Politicians On The Animal Farm, Ibpp Editor

International Bulletin of Political Psychology

This article discusses agricultural policy in the United Kingdom regarding foot and mouth disease of cloven-hoofed animals.