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2000

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Articles 1 - 30 of 167

Full-Text Articles in Education

Extension Workers As Orchestrators Of Civic Renewal Through Civic Professionalism, Nancy K. Franz Dec 2000

Extension Workers As Orchestrators Of Civic Renewal Through Civic Professionalism, Nancy K. Franz

Nancy K. Franz

I have a passion and a bias. I am passionate about the important role of the Cooperative Extension System (CES) in civic renewal. My bias is that extension workers (also known as agents or educators) are the key to civic renewal throughout the United States. No other institution has the same ability to reach all of America with education and organizing efforts. With extension workers in every county in the nation, this group of professionals and their work cut across age, race, ethnicity, religion, geography and many other demographic characteristics. Extension has a long history of being active in civic ...


An Account Of Novice Phylogenetic Tree Construction From The Problem-Solving Research Tradition, Terrance E. Brisbin Dec 2000

An Account Of Novice Phylogenetic Tree Construction From The Problem-Solving Research Tradition, Terrance E. Brisbin

Dissertations

Both the content and strategic knowledge used in phylogenetic tree construction are described to account for novice performance. A review of the literature is used to place this research with respect to studies in: problem solving studies (both expert, and novice), the history and practice of evolutionary systematics, and the teaching of evolution. The computer-based problem-solving environment is discussed along with model problems used for the research.

Each of the five research problems consists of an encoded matrix containing phylogenetic data organized by taxa and characters. Twelve participants (high school students) volunteered to solve the research problems, on their own ...


Obituary: Elmer Clea Birney, 1940-2000, Hugh H. Genoways, Carleton J. Phillips, Jerry R. Choate, Robert S. Sikes, Kristin M. Kramer Nov 2000

Obituary: Elmer Clea Birney, 1940-2000, Hugh H. Genoways, Carleton J. Phillips, Jerry R. Choate, Robert S. Sikes, Kristin M. Kramer

Mammalogy Papers: University of Nebraska State Museum

On 11 June 2000, Dr. Elmer C. Birney unexpectedly passed away from cardiac arrest suffered while outside caring for his cattle at his home in Blaine, Minnesota. One of his former students, Robert Timm, probably best expressed the immediate reaction of his family and many friends: ‘‘He was too young and in too good of health to be gone so soon.’’ At the time of his death, Elmer was Professor in the Department of Ecology, Evolution and Behavior, the Curator of Mammals at the Bell Museum of Natural History, and Director of Graduate Studies of the program in Ecology, Evolution ...


Safety Of Canning Quick Breads, Charlotte Brennand Oct 2000

Safety Of Canning Quick Breads, Charlotte Brennand

All Current Publications

No abstract provided.


Ua66/5 Newsletter, Wku Agriculture Oct 2000

Ua66/5 Newsletter, Wku Agriculture

WKU Archives Records

Newsletter created by WKU Agriculture Department re: faculty/staff, students/alumni, student organizations and clubs and donors.


Human Capital, Education, And Agriculture, Wallace E. Huffman Sep 2000

Human Capital, Education, And Agriculture, Wallace E. Huffman

Economic Staff Paper Series

Education is widely recognized as the most important form of human capital, and health as the second most important form. The primary focus is on schooling where private and social real rates of return remain high in low and middle income countries for elementary and secondary schooling. The paper reviews broad effects of education in agriculture, and examines some of the prospects and potential for thefuture. Conclusions include: (i) schooling cannot be viewed as unconditionally productive in agriculture. It s impact is conditioned by the price and technology environment and options for off-farm work and migration, (ii) With rapid advances ...


Hepatotoxicity Of Stanozolol In Cats., K Harkin, L Cowan, G Andrews, R Basaraba, J Fischer, L Debowes, J Roush, M Guglielmino, Claudia Kirk Aug 2000

Hepatotoxicity Of Stanozolol In Cats., K Harkin, L Cowan, G Andrews, R Basaraba, J Fischer, L Debowes, J Roush, M Guglielmino, Claudia Kirk

Claudia A Kirk

OBJECTIVE: To determine hepatotoxicity of stanozolol in cats and to identify clinicopathologic and histopathologic abnormalities in cats with stanozolol-induced hepatotoxicosis. DESIGN: Clinical trial and case series. ANIMALS: 12 healthy cats, 6 cats with chronic renal failure, and 3 cats with gingivitis and stomatitis. PROCEDURES: Healthy cats and cats with renal failure were treated with stanozolol (25 mg, i.m., on the first day, then 2 mg, p.o., q 12 h) for 4 weeks. Cats with gingivitis were treated with stanozolol at a dosage of 1 mg, p.o., every 24 hours. RESULTS: Most healthy cats and cats with renal ...


The Use Of Humor As A Teaching Tool In The College Classroom, Ron Deiter Jun 2000

The Use Of Humor As A Teaching Tool In The College Classroom, Ron Deiter

Economics Publications

Previous research reports a strong positive correlation between class attendance and student performance. Consequently, college educators, often explore innovative ways of encouraging class attendance. While no substitute for substance, humor is a teaching tool that can create a more positive, fun, interesting environment that promotes class attendance and student learning.

Despite recent widespread attention on the use of humor in our society, this paper identifies some professorial "myths" or misunderstandings about the use of humor in the classroom that continue to exist. These include I ) humor is telli ng jokes or physical comedy, 2) instructors should not try to use ...


Teaching The Ethics Of Biology, David Harris Ph.D., Carol K. Johansen May 2000

Teaching The Ethics Of Biology, David Harris Ph.D., Carol K. Johansen

Faculty Publications

Discusses the basic principles of ethics and ethical decision making as applied to biology. Ethical issues associated with biology; Theoretical basis of ethical decision-making; Models of ethical decision-making; Social implications of scientific experimentation and discovery.


Design: Exploring The Elements And Principles, Janeanne Stout Mar 2000

Design: Exploring The Elements And Principles, Janeanne Stout

4-H Youth Development Publications

Learn about the elements and principles of design and how to evaluate the quality of a design.


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Obat Forex Asli | Hendel Forex Original Herbal | Jual Forex Asli, Dewi Jum

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Terminology Work: Tools And Processes That Make A Difference, Uwe Muegge Jan 2000

Terminology Work: Tools And Processes That Make A Difference, Uwe Muegge

Uwe Muegge

Technical texts, i.e., technical literature proper (data sheets, user documentation, scientific publications, etc.), as well as the whole range of medical and legal texts, have one feature in common: Their authors make generous use of: a) words not in common usage, e.g., dongle (a computer hardware device that prevents unauthorized use of protected software); and/or b) words that are in common usage but have a slightly, or even totally, different meaning in the special language, e.g., bug (in the general sense, this means a small insect, but in the computer software field, this is a small ...


Overcoming Barriers To Restaurant Food Safety, David Walczak Jan 2000

Overcoming Barriers To Restaurant Food Safety, David Walczak

Hospitality Review

Food safety is critical to the success of restaurants. Yet current methods of controling foodborne illness are inadequate, including time and temperature control, safe food handling procedures, good employee hygiene, cleaning and sanitizing techniques, and Hazard Analysis and Critical Control Points (HACCP) plan. Several barriers to food safety in restaurants are identified and recommendations for management are suggested.


The Use Of Animals In Higher Education: Problems, Alternatives, & Recommendations, Jonathan Balcombe Jan 2000

The Use Of Animals In Higher Education: Problems, Alternatives, & Recommendations, Jonathan Balcombe

eBooks

Despite recent advances in technology and increasing societal concern for animals, animals continue to be exploited and killed in large numbers so that students can learn about their structure and function. Dissection may not be without its merits from an educational standpoint, if well implemented, but it appears from student surveys that it usually is not. When one considers the associated costs—animal suffering and death in the supply trade, disruption of wild animal populations, messages that tend to undermine rather than reinforce respect for life and concern for others, rising costs of animal carcasses (as compared with alternatives with ...


Checklist Of Instructions For Authors Jan 2000

Checklist Of Instructions For Authors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Statement Of The Position Of The Iowa Academy Of Science On The Validity Of Evolutionary Science And On The Status Of Creationism As A Scientific Explanation Of Natural Phenomena Jan 2000

Statement Of The Position Of The Iowa Academy Of Science On The Validity Of Evolutionary Science And On The Status Of Creationism As A Scientific Explanation Of Natural Phenomena

Journal of the Iowa Academy of Science: JIAS

Current attempts to introduce "scientific creationism", "creationism", or the Judeo-Christian biblical account of creation, as well as to reframe the discussion around terms such as "abrupt appearance theory", "intelligent design theory", or other disguised forms of creationism into the science classroom along with or instead of evolutionary science are strongly opposed by The Iowa Academy of Science on the grounds that creationism, in whatever form, is a religious doctrine and not science.


Announcements Of Upcoming Meetings And Symposia Jan 2000

Announcements Of Upcoming Meetings And Symposia

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Editorial Board & Iowa Academy Of Science Officers And Directors Jan 2000

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Back Cover Jan 2000

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Table Of Contents Jan 2000

Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Introduction: A Perspective On Midwest Amphibian Declines, Gary S. Casper Jan 2000

Introduction: A Perspective On Midwest Amphibian Declines, Gary S. Casper

Journal of the Iowa Academy of Science: JIAS

On March 21, 1998, approximately 300 scientists and students gathered at the Milwaukee Public Museum for two days of scientific presentations and intense discussion on amphibian declines and malformities. Never before had so many persons come together to address amphibian conservation in the Midwestern United States (Minnesota, Wisconsin, Michigan, Illinois, Indiana, Ohio, Iowa, and Missouri).


Interactive Effects Of Anthropogenic, Environmental, And Biotic Stressors On Multiple Endpoints In Hyla Chrysoscelis, Carol A. Britson, Stephen T. Threlkeld Jan 2000

Interactive Effects Of Anthropogenic, Environmental, And Biotic Stressors On Multiple Endpoints In Hyla Chrysoscelis, Carol A. Britson, Stephen T. Threlkeld

Journal of the Iowa Academy of Science: JIAS

Multiple stressors have been proposed as causative agents for declining populations and increased incidence of malformations in amphibians although few studies have examined possible interactions among these stressors. We measured interactive effects of UV radiation, three chemicals, and interspecific competition (with Rana 1phenocephala) on multiple endpoints in Hyla chrysoscelis using a center point- and chemical-free control-enhanced 24 factorial design. UV radiation was transmitted or filtered using OP-4 or OP-3 acrylite filters installed above 72, 500-liter mesocosms on 16 May 1997. Methyl mercury, chlorpyrifos, and atrazine were applied at levels of 0, 10, 50, and 100 % of 400 ppb, 30 ...


Defining Anuran Malformations In The Context Of A Developmental Problem, Carol U. Meteyer, Rebecca A. Cole, Kathryn A. Converse, Douglas E. Docherty, Mark Wolcott, Judy C. Helgen, Richard Levey, Laura Eaton-Poole, James G. Burkhart Jan 2000

Defining Anuran Malformations In The Context Of A Developmental Problem, Carol U. Meteyer, Rebecca A. Cole, Kathryn A. Converse, Douglas E. Docherty, Mark Wolcott, Judy C. Helgen, Richard Levey, Laura Eaton-Poole, James G. Burkhart

Journal of the Iowa Academy of Science: JIAS

This paper summarizes terminology and general concepts involved in animal development for the purpose of providing background for the study and understanding of frog malformations. The results of our radiographic investigation of rear limb malformations in Rana pipiens provide evidence that frog malformations are the product of early developmental errors. Although bacteria, parasites and viruses were identified in these metamorphosed frogs, the relevant window to look for the teratogenic affect of these agents is in the early tadpole stage during limb development. As a result, our microbiological findings must be regarded as inconclusive relative to determining their contribution to malformations ...


A Relationship Between Trematode Metacercariae And Bullfrog Limb Abnormalities, James L. Christiansen, Heather Feltman Jan 2000

A Relationship Between Trematode Metacercariae And Bullfrog Limb Abnormalities, James L. Christiansen, Heather Feltman

Journal of the Iowa Academy of Science: JIAS

This study is the first report of statistically significant relationships between limb abnormalities and trematode metacercariae in natural populations of frogs. We examined only parasite associations and did not investigate numerous potential pollutants that have been suggested by others to be associated with frog limb abnormalities. Rana catesbeiana of varying ages with a variety of limb abnormalities were found during the flood of 1993. By June 1994, the receding flood waters had left four pools, each with newly metamorphosing bullfrogs. Only one of the pools contained abnormal individuals and histological examination revealed significantly greater prevalence of trematode metacercarial infection in ...


Effects Of Altosid And Abate-4e On Deformities And Survival In Southern Leopard Frogs Under Semi-Natural Conditions, Donald W. Sparling Jan 2000

Effects Of Altosid And Abate-4e On Deformities And Survival In Southern Leopard Frogs Under Semi-Natural Conditions, Donald W. Sparling

Journal of the Iowa Academy of Science: JIAS

Since 1995 when a group of school children in Minnesota found frogs with supernumerary limbs and missing limbs, there has been widespread interest in the amphibian malformation issue. Despite considerable effort to understand this problem, its extent and seriousness as well as direct causes of these malformations remain unclear. Progress on this issue has been hampered by a scarcity of scientifically reliable information on historical rates of abnormalities under undisturbed conditions and by the normal turnaround times of data collection, sample analysis and publication. One of the very few peer-reviewed publications with field-collected data showed that an average of 12 ...


Morphological Abnormalities In Illinois Cricket Frogs, Acris Crepitans, 1968-71, Robert H. Gray Jan 2000

Morphological Abnormalities In Illinois Cricket Frogs, Acris Crepitans, 1968-71, Robert H. Gray

Journal of the Iowa Academy of Science: JIAS

Reports of malformed amphibians have been increasing, including external deformities such as missing or extra arms and legs, missing eyes and mandibles, and internal abnormalities involving the bladder, digestive system, and testes. Natural phenomena such as limb amputations during predation attempts by other animals, parasitism, xenobiotic chemicals (herbicides, insecticides, fertilizers and others), and UV-B or other radiation (either directly or indirectly by triggering production of toxicants from nontoxic chemicals) have all been linked to amphibian abnormalities. From 1968-71, I studied the natural history, effective breeding size, and seasonal, annual, and geographic variation in color morph frequencies of cricket frogs (Acris ...


Field Investigations Of Malformed Frogs In Minnesota 1993-97, Judy C. Helgen, Mark C. Gernes, Susan M. Kersten, Joel W. Chirhart, Jeff T. Canfield, Dorothy Bowers, Jon Haferman, Robert G. Mckinnell, David M. Hoppe Jan 2000

Field Investigations Of Malformed Frogs In Minnesota 1993-97, Judy C. Helgen, Mark C. Gernes, Susan M. Kersten, Joel W. Chirhart, Jeff T. Canfield, Dorothy Bowers, Jon Haferman, Robert G. Mckinnell, David M. Hoppe

Journal of the Iowa Academy of Science: JIAS

Reports of malformed frogs were made to the Minnesota Pollution Control Agency (MPCA) from different parts of Minnesota in 1993, 1995, 1996, and 1997 and one, nine, 190, and 172 reports were received, respectively. MPCA field crews and Drs. Hoppe and McKinnell documented malformed frog locations starting in 1993. By 1997, MPCA field crews documented malformed frogs at 62 locations in Minnesota, in 29 of 87 counties. Most malformations were in young metamorphs of Rana pipiens but they were observed also in R. clamitans, R. septentrionalis, R. sylvatica, Bufo americanus, and Hyla spp. Frequencies of malformations varied by time of ...


Effects Of Pcb 126 And Ammonia, Alone And In Combination, On Green Frog (Rana Clamitans) And Leopard Frog (R. Pipiens) Hatching Success, Development, And Metamorphosis, Mariana Beatriz Jofre, Michele L. Rosenshield, William H. Karasov Jan 2000

Effects Of Pcb 126 And Ammonia, Alone And In Combination, On Green Frog (Rana Clamitans) And Leopard Frog (R. Pipiens) Hatching Success, Development, And Metamorphosis, Mariana Beatriz Jofre, Michele L. Rosenshield, William H. Karasov

Journal of the Iowa Academy of Science: JIAS

The Green Bay watershed in Wisconsin is polluted with polychlorinated biphenyls (PCBs), dioxin, heavy metals, ammonia, and over 100 organic contaminants. In this study we exposed embryos and larvae of two ranid species commonly occurring in the Green Bay ecosystem, the green frog (Rana clamitans) and the leopard frog (R. pipiens), to PCB 126 (3,3', 4,4', 5-Pentachlorobyphenil, nominal concentrations 0-50 μg/l, two control treatments: water plus 0.08% acetone as carrier for the PCB, water alone), unionized ammonia (0-2 mg/I), and mixtures of both contaminants. Exposure to PCB 126 did not cause significant mortality of embryos ...


The North American Reporting Center For Amphibian Malformations, Douglas H. Johnson, Suzanne C. Fowle, Jeffrey A. Jundt Jan 2000

The North American Reporting Center For Amphibian Malformations, Douglas H. Johnson, Suzanne C. Fowle, Jeffrey A. Jundt

Journal of the Iowa Academy of Science: JIAS

The North American Reporting Center for Amphibian Malformations was established to provide a conduit of information about, and a systematic data base on, malformed amphibians. This article describes the Reporting Center and the variety of features available at its Web site, presents an example of a summary analysis that can be conducted with its data, discusses caveats about the data, and makes recommendations about systematic surveys to better understand patterns and trends in the incidence of malformed amphibians.


Landscape Associations Of Frog And Toad Species In Iowa And Wisconsin, U.S.A., Melinda G. Knutson, John R. Sauer, Douglas A. Olsen, Michael J. Mossman, Lisa M. Hemesath, Michael J. Lannoo Jan 2000

Landscape Associations Of Frog And Toad Species In Iowa And Wisconsin, U.S.A., Melinda G. Knutson, John R. Sauer, Douglas A. Olsen, Michael J. Mossman, Lisa M. Hemesath, Michael J. Lannoo

Journal of the Iowa Academy of Science: JIAS

Landscape habitat associations of frogs and toads in Iowa and Wisconsin were tested to determine whether they support or refute previous general habitat classifications. We examined which Midwestern species shared similar habitats to see if these associations were consistent across large geographic areas (states). Rana sylvatica (wood frog), Hyla versicolor (eastern gray treefrog), Pseudacris crucifer (spring peeper), and Acris crepitans (cricket frog) were identified as forest species, P. triseriata (chorus frog), H. chrysoscelis (Cope's gray treefrog), R. pipiens (leopard frog), and Bufo americanus (American toad) as grassland species, and R. catesbeiana (bullfrog), R. clamitans (green frog), R. palustris (pickerel ...