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Life Sciences

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2001

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Articles 31 - 60 of 83

Full-Text Articles in Social and Behavioral Sciences

Agenda: A Cartography Of Governance: Exploring The Province Of Environmental Ngos, University Of Colorado Boulder. School Of Law, University Of Colorado Boulder. Environmental Program, University Of Tulsa. National Energy-Environment Law & Policy Institute, University Of Colorado Boulder. United Government Of Graduate Students Apr 2001

Agenda: A Cartography Of Governance: Exploring The Province Of Environmental Ngos, University Of Colorado Boulder. School Of Law, University Of Colorado Boulder. Environmental Program, University Of Tulsa. National Energy-Environment Law & Policy Institute, University Of Colorado Boulder. United Government Of Graduate Students

A Cartography of Governance: Exploring the Province of Environmental NGOs (April 7-8)

Presented by: the Colorado Journal of International Environmental Law and Policy on April 7 & 8, 2001. Symposium director: Lakshman D. Guruswamy.

Co-sponsored by: University of Colorado School of Law, University of Colorado Environmental Program, University of Tulsa National Energy-Environment Law and Policy Institute, University of Colorado United Government of Graduate Students.

The papers and edited proceedings of the conference will be published in a special symposium issue of the Colorado Journal of International Environmental Law & Policy (CJIELP).

"The first objective of the Symposium was to understand and explore the growing importance of nongovernmental actors, and delineate the manner …


Determinants Of Teachers' Intentions To Teach Physically Active Physical Education Classes, Jeffrey J. Martin, Pamela Hodges Kulinna, Robert C. Eklund, Brett Reed Apr 2001

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 …


Draft Plan Of Management For The Cottesloe Reef Proposed Fish Habitat Protection Area., Fisheries Western Australia Apr 2001

Draft Plan Of Management For The Cottesloe Reef Proposed Fish Habitat Protection Area., Fisheries Western Australia

Fisheries management papers

The aim of this management plan is to promote and encourage the protection and rehabilitation of the aquatic habitat at Cottesloe Reef and to involve the community in its management.


The Chainsaw And The White Oak: From Astrobiology To Environmental Sustainability, Leo R. Finkenbinder, Dwight E. Neuenschwander Apr 2001

The Chainsaw And The White Oak: From Astrobiology To Environmental Sustainability, Leo R. Finkenbinder, Dwight E. Neuenschwander

Faculty Scholarship – Biology

An American biology professor befriends a Costa Rican farmer who through their relationship stops farming and forest clearing to establish a tourist and research center devoted to saving the country's cloud forest. The Chacon family's experience provides a studied model of sustainability, known in environmental circles as the "White Oak Model."


Application Of Spatial Concepts To Genome Data, Mary-Kate Beard-Tisdale, Carol Bult, Max J. Egenhofer Editor Mar 2001

Application Of Spatial Concepts To Genome Data, Mary-Kate Beard-Tisdale, Carol Bult, Max J. Egenhofer Editor

University of Maine Office of Research Administration: Grant Reports

This project will investigate the application of geographic information science concepts and methods to the modeling and analysis of genome data. The primary objective of the research is to develop a data model for genomes that supports the graphical exploration of the higher order spatial arrangement of genome features through spatial queries and spatial data analysis tools. The spatial genome model formalizes topological and order relationships among genome features (before, after, overlap), uses metric properties to refine spatial topologies, and includes representations of features that have uncertain metric properties. The genome spatial model enhances the integrative and comparative potential of …


Final Plan Of Management For The Lancelin Island Lagoon Fish Habitat Protection Area., Fisheries Western Australia, Australian Marine Conservation Society Friends Of Lancelin Island. Mar 2001

Final Plan Of Management For The Lancelin Island Lagoon Fish Habitat Protection Area., Fisheries Western Australia, Australian Marine Conservation Society Friends Of Lancelin Island.

Fisheries management papers

The Lancelin Island Lagoon is a small area of reef habitat on the western side of Lancelin Island and a popular snorkelling and diving destination. Water depth ranges from less than 0.3 m on the intertidal reefs to less than 3 m on the sand or seagrass-covered bottom. The area has a diverse array of benthic marine habitat. During a marine survey of the area, over 200 flora and fauna species were positively identified, with many more remaining unidentified due to the diversity of species supported in this marine environment. The survey, which was facilitated by direct observations and photographs, …


Size Matters: Impact Of Item Size And Quantity On Array Choice By Chimpanzees (Pan Troglodytes), Sarah T. Boysen, Gary G. Berntson, Kimberly L. Mukobi Mar 2001

Size Matters: Impact Of Item Size And Quantity On Array Choice By Chimpanzees (Pan Troglodytes), Sarah T. Boysen, Gary G. Berntson, Kimberly L. Mukobi

Sentience Collection

The authors previously reported that chimpanzees (Pan troglodytes) showed a striking bias to select the larger of 2 candy arrays, despite a reversed reward contingency in which the animals received the smaller, nonselected array as a reward, except when Arabic numerals were used as stimuli. A perceptual or incentive-based interference occurred that was overcome by symbolic stimuli. The authors of the present study examined the impact of element size in choice arrays, using 1 to 5 large and small candies. Five test-sophisticated chimpanzees selected an array from the 2 presented during each trial. Their responses were not optimal, as animals …


Sugar: Is There A Need For A Dietary Guideline?, P. G. Williams Mar 2001

Sugar: Is There A Need For A Dietary Guideline?, P. G. Williams

Faculty of Health and Behavioural Sciences - Papers (Archive)

There have been dietary guidelines in Australia since 1979 and all editions have included recommendations about sugar. This paper reviews changing recommendations in Australia, current levels of conumption, recent studies on the potential effects of nutrient dilution and dental caries, and discusses potential risks associated with a dietary guideline.


Survivability Architecture For Workflow Management Systems, Jorge Cardoso, Zongwei Luo, John A. Miller, Amit P. Sheth, Krzysztof J. Kochut Mar 2001

Survivability Architecture For Workflow Management Systems, Jorge Cardoso, Zongwei Luo, John A. Miller, Amit P. Sheth, Krzysztof J. Kochut

Kno.e.sis Publications

The survivability of critical infrastructure systems has been gaining increasing concern from the industry. The survivability research area addresses the issue of infrastructure systems that continues to provide pre-established service levels to users in the face of disorders and react to changes in the surrounding environment. Workflow management systems need to be survivable since they are used to support critical and sensitive business processes. They require a high level of dependability and should not allow process instances to be interrupted or aborted due to failures. Moreover, due to their sensitivity, business process should reflect any change in the environment. In …


Social Play Behaviour: Cooperation, Fairness, Trust, And The Evolution Of Morality, Marc Bekoff Feb 2001

Social Play Behaviour: Cooperation, Fairness, Trust, And The Evolution Of Morality, Marc Bekoff

Ethology Collection

No abstract provided.


Tiger Restoration In Asia: Ecological Theory Vs. Sociological Reality, Ronald Tilson, Philip J. Nyhus, Neil Franklin Jan 2001

Tiger Restoration In Asia: Ecological Theory Vs. Sociological Reality, Ronald Tilson, Philip J. Nyhus, Neil Franklin

Faculty Scholarship

No abstract provided.


Modifying Water Nipples For Newborn Pigs, P. A. Phillips, D. Fraser Jan 2001

Modifying Water Nipples For Newborn Pigs, P. A. Phillips, D. Fraser

Learning Ability Collection

The use of bite nipples by piglets during the first six days after birth was monitored by time-lapse video recording. Simple bite nipples, mounted at a downward angle, were not discovered by most piglets within the six days, even after the nipple had been modified to drip water continuously. However, two modifications resulted in most piglets discovering the nipple within three days. These modifications were (1) mounting the nipple close to the floor with an upward angle and (2) adding a short length of chain to the valve lever


The Ethical Limits Of Domestication: A Critique Of Henry Heffner’S Arguments, Colin Allen, Marc Bekoff, Lori Gruen Jan 2001

The Ethical Limits Of Domestication: A Critique Of Henry Heffner’S Arguments, Colin Allen, Marc Bekoff, Lori Gruen

Experimentation Collection

Henry E. Heffner argues that “animals bred for research are properly viewed as animals who have successfully invaded the laboratory niche, relying heavily on kin selection to perpetuate their genes.” (1999, p. 134). This view of human–animal interactions is the cornerstone of his defense of animal experimentation in two widely-distributed papers (Heffner 1999, 2001). We argue that Heffner’s defense lacks adequate attention to ethical distinctions and principles.


Urban Wildlife Control: It Starts In Our Own Backyard, John Hadidian Jan 2001

Urban Wildlife Control: It Starts In Our Own Backyard, John Hadidian

Conservation Collection

No abstract provided.


Is There A Place In The World For Zoos? / Another View Of Zoos, David Hancocks, Richard Farinato Jan 2001

Is There A Place In The World For Zoos? / Another View Of Zoos, David Hancocks, Richard Farinato

State of the Animals 2001

We human animals make rapid technological and cultural advancements because we have the ability to pass definitive information to succeeding generations. But we also accept too much from the past without challenge. The good, the bad, and the indifferent are muddled together, accumulating in layers that smother each succeeding age. Cultural mores ranging from the silly to the profane, from charming to dangerous, clutter our world. They exist only because, as the British are wont to say, “We have always done things this way.” One very troubling example is the public zoological parks found in almost every city: they are …


Animal Research: A Review Of Developments, 1950–2000, Andrew N. Rowan, Franklin M. Loew Jan 2001

Animal Research: A Review Of Developments, 1950–2000, Andrew N. Rowan, Franklin M. Loew

State of the Animals 2001

The third phase of the animal research debate started around 1950. After World War II the government became a major sponsor of scientific research, including biomedical research. The budget of the National Institutes of Health (NIH) grew dramatically and has continued to grow, with a few minor retrenchment periods, up to the present time (see Figure 1). This growth led to an enormous expansion in publicly funded research. In the private sector, the discovery of penicillin and streptomycin led to a tremendous expansion in pharmaceutical research and in the size of the prescription drug industry. These expansions in government funding …


Urban Wildlife, John Hadidian, Sydney Smith Jan 2001

Urban Wildlife, John Hadidian, Sydney Smith

State of the Animals 2001

Despite the potential for difficulty, there are several reasons why urban wildlife should be valued and better understood. First is its scientific and heuristic value. Urban wildlife populations are essentially parts of ongoing natural experiments in adaptation to anthropogenic stress. How urban animals are affected by human activities— and how they cope with them— can represent, on a highly accelerated scale, a model of what is happening to species in other biomes. No other wild animals live in such intimate contact and under such constant constraint from human activities as do synanthropes. Second, urban animals are exposed to many environmental …


Fertility Control In Animals, Jay F. Kirkpatrick, Allen T. Rutberg Jan 2001

Fertility Control In Animals, Jay F. Kirkpatrick, Allen T. Rutberg

State of the Animals 2001

There are, effectively, only two choices for actively managing the size of animal populations: reducing the birth rate and increasing the death rate. (Local population size may also be controlled by movement of individuals in and out; but when the size of animal populations concerns us, movement of individuals merely relocates the concerns. We are not absolved of our responsibility for animals simply because they go somewhere else.) Killing certainly can reduce and even destroy wildlife populations if enough animals of the right description are removed from the population. Until the last decade of the twentieth century, however, fertility control …


Tail Docking Dairy Cattle: Effects On Cow Cleanliness And Udder Health, Cassandra B. Tucker, David Fraser, Daniel M. Weary Jan 2001

Tail Docking Dairy Cattle: Effects On Cow Cleanliness And Udder Health, Cassandra B. Tucker, David Fraser, Daniel M. Weary

Farm Animal Husbandry Collection

To determine whether tail docking would influence cow cleanliness and udder health in a free-stall system, we monitored milking cows after half the animals in a herd were docked. A sample of 223 docked and 190 undocked cows (reducing to 169 and 105 over the study as cows were dried off) were monitored for 8 wk. Cow cleanliness was scored in two areas: along the spine, and the rump adjacent to the tail at 1, 2, 3, 5, and 8 wk after docking. Cleanliness was evaluated by counting squares that were soiled (0 to 14 on a 5- × 17.5-cm …


A Twins Study Of Communicative Adaptability: Heritability Of Individual Differences, Michael J. Beatty, Lenora A. Marshall, Jill E. Rudd Jan 2001

A Twins Study Of Communicative Adaptability: Heritability Of Individual Differences, Michael J. Beatty, Lenora A. Marshall, Jill E. Rudd

Communication Faculty Publications

Recently, a model of communication theory and research has appeared in the literature within which stable individual differences in communication behavior represent individual differences in activation thresholds of neurobiological systems. The neurobiological systems thought to underly communication traits and behavior are assumed to be primarily due to genetic inheritance. As such, the model assigns a limited role to adaptability in social situations, instead positing communication adaptability as an inherited trait. In the present study, heritability estimates for the dimensions of communicative adaptability were derived from correlations based on identical and fraternal twins' responses to a multidimensional communicative adaptability measure. Results …


A "Converse" Of The Banach Contraction Mapping Theorem, Pascal Hitzler, Anthony K. Seda Jan 2001

A "Converse" Of The Banach Contraction Mapping Theorem, Pascal Hitzler, Anthony K. Seda

Computer Science and Engineering Faculty Publications

We prove a type of converse of the Banach contraction mapping theorem for metric spaces: if X is a T1 topological space and f: X -> X is a function with the unique fixed point a such that fn(x) converges to a for each x is a member of X, then there exists a distance function d on X such that f is a contraction on the complete ultrametric space (X,d) with contractivity factor 1/2. We explore properties of the resulting space (X,d).


Unique Supported-Model Classes Of Logic Programs, Pascal Hitzler, Anthony K. Seda Jan 2001

Unique Supported-Model Classes Of Logic Programs, Pascal Hitzler, Anthony K. Seda

Computer Science and Engineering Faculty Publications

We study classes of programs, herein called unique supported-model classes, with the property that each program in the class has a unique supported model. Elsewhere, the authors examined these classes from the point of view of operators defined relative to certain three-valued logics. In this paper, we complement our earlier results by considering how unique supported-model classes fit into the framework given by various classes of programs in several well-known approaches to semantics.


Kontraktionssatze Auf Verallgemeinerten Metrischen Raumen, Pascal Hitzler Jan 2001

Kontraktionssatze Auf Verallgemeinerten Metrischen Raumen, Pascal Hitzler

Computer Science and Engineering Faculty Publications


Regulation Of Alcohol Advertising In Australia: Case Study Of A Failure, Sandra C. Jones, R. J. Donovan Jan 2001

Regulation Of Alcohol Advertising In Australia: Case Study Of A Failure, Sandra C. Jones, R. J. Donovan

Faculty of Health and Behavioural Sciences - Papers (Archive)

The aim of this paper is to further the bridging of marketing theory and practice by disseminating to marketing practitioners the results of a recent study conducted for a public health audience. This paper has direct implications for the practice of ethical marketing and advertising of alcohol beverages in Australia. The study was designed to assess young people’s perceived messages in three ads for a vodka-based pre-mixed alcohol beverage, and to assess the extent to which the ads appeared to be consistent with the industry’s voluntary code. Two convenience samples of young people, one aged 15-16 years and another aged …


A Review Of The Consistency Of Pamphlets Promoting Mammographic Screening In Australia, Sandra C. Jones Jan 2001

A Review Of The Consistency Of Pamphlets Promoting Mammographic Screening In Australia, Sandra C. Jones

Faculty of Health and Behavioural Sciences - Papers (Archive)

Breast cancer is the most common cancer diagnosed in women in Australia and the most common cause of cancer death in Australian women. Early detection of breast cancers with mammography has the potential to dramatically reduce mortality rates. Thus, there is an obvious need for clear, accurate information about breast cancer screening to be disseminated to Australian women. A 1997 review of breast cancer screening pamphlets in Australia noted some inconsistencies in the nature and content of the information provided, and recommended that these be addressed. The current study, conducted in January 2001, examined whether consistency has improved since the …


Dealing With Diversity: Incorporating Cultural Sensitivity Into Professional Midwifery Practice, Moira Williamson, Lindsey Harrison Jan 2001

Dealing With Diversity: Incorporating Cultural Sensitivity Into Professional Midwifery Practice, Moira Williamson, Lindsey Harrison

Faculty of Health and Behavioural Sciences - Papers (Archive)

In the Australian College of Midwives, Code of Ethics, Section 11. Practice of Midwifery, the following is stated "A. Midwives provide care for women and childbearing families with respect for cultural diversity while also working to eliminate harmful practices within those same cultures." However, it is difficult to know what is meant by "respect for cultural diversity". This paper presents the results of a critical review of the health literature. There is surprisingly little consensus about the meaning of terms such as cultural sensitivity and cultural appropriate care. Nor are there reflections on incorporating these concepts into practice. It could …


Physician Communication Skills: Results Of A Survey Of General/Family Practitioners In Newfoundland, F D. Ashbury, Donald C. Iverson, Boris Kralj Jan 2001

Physician Communication Skills: Results Of A Survey Of General/Family Practitioners In Newfoundland, F D. Ashbury, Donald C. Iverson, Boris Kralj

Faculty of Health and Behavioural Sciences - Papers (Archive)

Purpose: To describe the attitudes related to communication skills, confidence in using commnication skills, and use of communication skills during the physician-patient encounter among a population-based sample of family physicians. Procedures: A mailed survey, distributed to all family physicians and general practitioners currently practicing in Newfoundland. The questionnaire was designed to collect data in five general areas participant demographics, physician confidence in using specific communication strategies, perceived adequacy of time spent by physicians with their patients, physician use of specific communication strategies with the adult patients they saw in the prior week, and physician use of specific communication strategies during …


Effects Of Horizontal And Vertical Additive Disparity Noise On Stereoscopic Corrugation Detection, Stephen A. Palmisano, Robert S Allison, Ian Howard Jan 2001

Effects Of Horizontal And Vertical Additive Disparity Noise On Stereoscopic Corrugation Detection, Stephen A. Palmisano, Robert S Allison, Ian Howard

Faculty of Health and Behavioural Sciences - Papers (Archive)

Stereoscopic corrugation detection in the presence of horizontal- and vertical- additive disparity noise was examined using a signal detection paradigm. Random-dot stereograms either represented a 3-D square-wave surface with various amounts of Gaussian-distributed additive disparity noise or had the same disparity values randomly redistributed. Stereoscopic detection of 2 arcmin peak amplitude corrugations was found to tolerate significantly greater amplitudes of vertical-disparity noise than horizontal-disparity noiseirrespective of whether the corrugations were horizontally or vertically oriented. However, this directional difference in tolerance to disparity noise was found to reverse when the corrugation and noise amplitudes were increased (so as to produce equivalent …


Thermoregulation In Juvenile Red Kangaroos (Macropus Rufus) After Pouch Exit: Higher Metabolism And Evaporative Water Requirements, Adam J. Munn, Terence J. Dawson Jan 2001

Thermoregulation In Juvenile Red Kangaroos (Macropus Rufus) After Pouch Exit: Higher Metabolism And Evaporative Water Requirements, Adam J. Munn, Terence J. Dawson

Faculty of Science - Papers (Archive)

The population dynamics of red kangaroos (Macropus rufus) in the Australian arid zone is tightly linked with environmental factors, which partly operate via the survival of juvenile animals. A crucial stage is the young-at-foot (YAF) stage when kangaroos permanently exit the pouch. We have examined the thermal biology of YAF red kangaroos during ages from permanent pouch exit until weaning. Over a wide range of environmental temperatures (ambient temperature [T-a] -5 degrees to 45 degreesC), YAF red kangaroos had a mass-specific metabolism that was generally twice that of adults, considerably higher than would be expected for an adult marsupial of …


A Glu-496 To Ala Polymorphism Leads To Loss Of Function Of The Human P2x7 Receptor, Ben J. Gu, Weiyi Zhang, Rebecca A. Worthington, Ronald Sluyter, L Phuong Dao-Ung, Stephen Petrou, J A. Barden, James Wiley Jan 2001

A Glu-496 To Ala Polymorphism Leads To Loss Of Function Of The Human P2x7 Receptor, Ben J. Gu, Weiyi Zhang, Rebecca A. Worthington, Ronald Sluyter, L Phuong Dao-Ung, Stephen Petrou, J A. Barden, James Wiley

Faculty of Science - Papers (Archive)

P2X(7) receptor is a ligand-gated cation-selective channel that mediates ATP-induced apoptosis of cells of the immune system. We and others have shown that P2X(7) is nonfunctional both in lymphocytes and monocytes from some subjects. To study a possible genetic basis we sequenced DNA coding for the carboxyl-terminal tail of P2X(7). In 9 of 45 normal subjects a heterozygous nucleotide substitution (1513A-->C) was found, whereas 1 subject carried the homozygous substitution that codes for glutamic acid to alanine at amino acid position 496. Surface expression of P2X(7) on lymphocytes was not affected by this E496A polymorphism, demonstrated both by confocal …