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Full-Text Articles in Life Sciences

A Framework For Assessing The Rationality Of Judgments In Carcinogenicity Hazard Identification, Douglas J. Crawford-Brown, Kenneth G. Brown Sep 1997

A Framework For Assessing The Rationality Of Judgments In Carcinogenicity Hazard Identification, Douglas J. Crawford-Brown, Kenneth G. Brown

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

Arguing that guidelines for identifying carcinogens now lack a philosophically rigorous framework, the authors present an alternative that draws clear attention to the process of reasoning towards judgments of carcinogenicity.


Table Of Contents Volume Eight, Number Three, Summer 1997, Risk Editorial Board Jun 1997

Table Of Contents Volume Eight, Number Three, Summer 1997, Risk Editorial Board

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

Table of contents for the journal RISK: Health, Safety & Environment (ISSN: 1073-8673)


Scientific Facts Vs. Political Values, Thomas G. Field Jr. Jun 1997

Scientific Facts Vs. Political Values, Thomas G. Field Jr.

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

Professor Field takes exception to a recent Science editorial.


A Comparison Of U.S. And E.U. Product Safety Regulations: A Case Study, Bryan Harris Jun 1997

A Comparison Of U.S. And E.U. Product Safety Regulations: A Case Study, Bryan Harris

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

Mr. Harris compares government approaches with respect to foods that are combined with, e.g., trinkets - particularly when likely to be consumed by children.


Table Of Contents Volume Eight, Number Two, Spring 1997, Risk Editorial Board Mar 1997

Table Of Contents Volume Eight, Number Two, Spring 1997, Risk Editorial Board

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

Table of contents for the journal RISK: Health, Safety & Environment (ISSN: 1073-8673)


The Normative Nature Of Risk Assessment: Features And Possibilities, Carl F. Cranor Mar 1997

The Normative Nature Of Risk Assessment: Features And Possibilities, Carl F. Cranor

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

Dr. Cranor argues that appreciating risk assessment to be permeated with normative presuppositions, in contrast with being primarily objective, opens up unforeseen possibilities for risk management.


How Some Risk Frameworks Disenfranchise The Public, Kristin Shrader-Frechette Jan 1997

How Some Risk Frameworks Disenfranchise The Public, Kristin Shrader-Frechette

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

The author responds to recent characterizations of her work.


Cover - Table Of Contents Jan 1997

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Richard W. Pohl: Distinguished Botanist, Marjorie Conley Pohl Jan 1997

Richard W. Pohl: Distinguished Botanist, Marjorie Conley Pohl

Journal of the Iowa Academy of Science: JIAS

In her biographical portrait of Dr. Richard W. Pohl, Mrs. Pohl provides an engaging personal perspective of her late husband, his development as a botanist, his career, and his family life. We gain a sense of Dr. Pohl as a dedicated scientist as well as a humanist. Although Dr. Pohl possessed an abiding curiosity regarding all things natural, he is best known and remembered for his focus on grasses. As Mrs. Pohl documents, this interest in grasses began in the late 1930's and continued throughout his life-ultimately he was regarded as an authority on grass taxonomy both nationally and internationally. …


Back Cover Jan 1997

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Front Matter Jan 1997

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Contributed Papers Jan 1997

Contributed Papers

Journal of the Minnesota Academy of Science

No abstract provided.


Index Jan 1997

Index

Journal of the Minnesota Academy of Science

No abstract provided.


Winchell Papers Jan 1997

Winchell Papers

Journal of the Minnesota Academy of Science

Abstracts from the Winchell Papers given at the Annual Meeting for the Journal of the Minnesota Academy of Science.


Winchell Posters Jan 1997

Winchell Posters

Journal of the Minnesota Academy of Science

Abstracts from the Winchell Posters given at the Annual Meeting for the Journal of the Minnesota Academy of Science.


Table Of Contents Volume Eight, Number One, Winter 1997, Risk Editorial Board Jan 1997

Table Of Contents Volume Eight, Number One, Winter 1997, Risk Editorial Board

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

Table of contents for the journal RISK: Health, Safety & Environment (ISSN: 1073-8673)


Book Review - Lost Landscapes And Failed Economies, Tom Vetter Jan 1997

Book Review - Lost Landscapes And Failed Economies, Tom Vetter

Journal of the Iowa Academy of Science: JIAS

In an intensive and methodical manner, Power casts doubt upon notions of environmental protection choking economic development. He demonstrates the fallacy of such a position and successfully advocates environmental protection as economically sound. The confusion that exists between the environment and the economy is largely the result of misguided convention.


Distribution And Abundance Of Prairie Plant Species In The Loess Hills, Thomas R. Rosburg Jan 1997

Distribution And Abundance Of Prairie Plant Species In The Loess Hills, Thomas R. Rosburg

Journal of the Iowa Academy of Science: JIAS

The species composition of grassland and ecotonal communities throughout the Loess Hills was studies between 1990 and 1993. Information pertaining to the latitudinal distribution of species in the Loess Hills, the abundance of species among community types (i.e., habitats), species persistence under woody encroachment, species associations, and resource partitioning among species is provided for the majority of grassland species occurring in the Loess Hills. The most abundant species on extant prairie in the Loess Hills include Bouteloua curtipendula (side-oats grama), Schizachyrium scoparium (little bluestem), Andropogon gerardii (big bluestem), Cornus drummondii (rough-leaved dogwood), Aster ericoides (heath aster), Carex heliophila (sun-loving sedge), …


Editorial Board & Iowa Academy Of Science Officers And Directors Jan 1997

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Back Cover Jan 1997

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Iowa's State Parks: A Various Language, Rebecca Conard Jan 1997

Iowa's State Parks: A Various Language, Rebecca Conard

Journal of the Iowa Academy of Science: JIAS

Iowa's state park system is distinctive because academically based natural scientists were instrumental in drafting the 1917 State Park Law, in shaping the initial policies, and in establishing the first parks. The mandate of the 1917 law was broad, but its original intent was to preserve and conserve natural resources; providing recreational enjoyment was secondary. Between 1920 and mid-century the founding vision was recast time and again by compromises that sprang from economic necessity, competing interests, and changing societal values. The ideal of resource protection has remained a guiding principle, however, in large part because strong personalities provided continuity of …


Hot-Packaging Reduces Lipid Oxidation And Improves Sensory Characteristics Of Cooked Turkey Meat, Maiko Ishikawa, Dong U. Ahn Jan 1997

Hot-Packaging Reduces Lipid Oxidation And Improves Sensory Characteristics Of Cooked Turkey Meat, Maiko Ishikawa, Dong U. Ahn

Journal of the Iowa Academy of Science: JIAS

The effects of two vacuum packaging methods (hot and cold vacuum packaging) on the storage stability and sensory characteristics of cooked meat were compared. Ground turkey breast and leg meat patties were cooked, vacuum packaged appropriately, and stored up to 22 days. Lipid oxidation was measured by the thiobarbituric acid (TBA) test. In addition, Total aerobic count and sensory evaluation (flavor, juiciness, tenderness, overall acceptability) were conducted. There was no significant difference in aerobic plate count by packaging methods; however, panelist rating revealed that hot-packaged turkey leg meat had higher juiciness and overall acceptability scores than cold-packaged ones. Although TBARS …


Back Cover Jan 1997

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Editorial Board & Iowa Academy Of Science Officers And Directors Jan 1997

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Additions To The Pteridophyte Flora Of Iowa-Iv, James H. Peck, Jeffrey C. Nekola, William Thomas Jan 1997

Additions To The Pteridophyte Flora Of Iowa-Iv, James H. Peck, Jeffrey C. Nekola, William Thomas

Journal of the Iowa Academy of Science: JIAS

This report updates field collection records and summarizes nomenclatural changes of genera and binomials of species of Iowa pteridophytes based on the Flora of North America project. Botrychium simplex var. compositum, Gymnocarpium jessoense (Koidz.) Koidz. spp. parvulum Sarvela, Gymnocarpium Xhrittonianum (Sarvela) Pryer & Haufler, and Gymnocarpium Xintermedium Sarvela were recently added to the state flora. The flora now consists of 66 species, plus 7 hybrids, and 1 distinct form, for a total of 74 taxa. With the addition of 81 new county occurrence records, the Iowa pteridophyte flora now consists of 1754 county occurrence records. A data matrix of species/county …


Midwestern Geology And Cornell College: The First 125 Years, Gene E. Hinman, Paul L. Garvin Jan 1997

Midwestern Geology And Cornell College: The First 125 Years, Gene E. Hinman, Paul L. Garvin

Journal of the Iowa Academy of Science: JIAS

The history of geology at Cornell College can be traced back almost to the college's beginnings. Though not the first to reach geology at Cornell, William Harmon Norton, more than any other person, shaped the Department of Geology and set it on its course of excellence. Born in 1856, the son of a Methodist minister, Norton developed an ardent interest in geology in his boyhood. A graduate of Cornell in Classics, Norton was hired by his alma mater in 1876 to reach Greek, bur his avocation was geology. He spent most of his spare time on weekends and during summers …


Book Review - The End Of Science: Facing The Limits Of Knowledge, David Lopatto Jan 1997

Book Review - The End Of Science: Facing The Limits Of Knowledge, David Lopatto

Journal of the Iowa Academy of Science: JIAS

The June, 1997 issue of Harper's Magazine included a list of recently published books that have titles beginning with "The End of". There are thirty-one titles on the list. Publishers have been rushing to cash in on the public's emotional reaction to the coming end of the century. It is difficult to take some of these works seriously. Perhaps the hardest thesis to swallow is that science, including physics, chemistry, biology, and neuroscience, not to mention the social sciences and the philosophy of science, is coming to an end just as our somewhat arbitrary calendar ticks over to a new …


Back Cover Jan 1997

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Linking Marine Science To Industry: One Building Block, Kathleen Ellis Jan 1997

Linking Marine Science To Industry: One Building Block, Kathleen Ellis

Maine Policy Review

All involved in the work to develop Maine’s marine industry are united in the view that partnerships are paramount in maximizing the potential of this resource for the benefit of the state’s economy in a global marketplace. One entity with experience in the arena of working in collaboration with the private and public sectors is the University of Maine, which now is attempting to develop its role within the state’s marine industry further by becoming the home of a new School of Marine Sciences. Kathleen Ellis in this commentary offers some historical perspective on the university’s place in the state’s …


A Closer Look At Maine's Forest: Mainewatch Institute Conference Explores Sustainable Forestry Practice And Policy, Christopher "Kit" St. John Jan 1997

A Closer Look At Maine's Forest: Mainewatch Institute Conference Explores Sustainable Forestry Practice And Policy, Christopher "Kit" St. John

Maine Policy Review

No abstract provided.