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Physical Sciences and Mathematics

1991

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Articles 31 - 60 of 133

Full-Text Articles in Education

The Human/Computer Interface: Their Side Or Ours?, R. S.D. Thomas May 1991

The Human/Computer Interface: Their Side Or Ours?, R. S.D. Thomas

Humanistic Mathematics Network Journal

No abstract provided.


An Historical Approach To Precalculus And Calculus, Victor J. Katz May 1991

An Historical Approach To Precalculus And Calculus, Victor J. Katz

Humanistic Mathematics Network Journal

No abstract provided.


Augsburg's Humanistic Curriculum Project, Larry Copes, Beverly Stratton May 1991

Augsburg's Humanistic Curriculum Project, Larry Copes, Beverly Stratton

Humanistic Mathematics Network Journal

No abstract provided.


An Alternative Approach To The History Of Mathematics, Claudia Henrion May 1991

An Alternative Approach To The History Of Mathematics, Claudia Henrion

Humanistic Mathematics Network Journal

No abstract provided.


Mathematics: Contributions By Women, Jacqueline M. Dewar May 1991

Mathematics: Contributions By Women, Jacqueline M. Dewar

Humanistic Mathematics Network Journal

No abstract provided.


How Mathematics Teachers Use "Writing To Learn", Susan Hunter May 1991

How Mathematics Teachers Use "Writing To Learn", Susan Hunter

Humanistic Mathematics Network Journal

No abstract provided.


On Teaching In The Mathematical Sciences, James M. Cargal May 1991

On Teaching In The Mathematical Sciences, James M. Cargal

Humanistic Mathematics Network Journal

No abstract provided.


Mathematics For Life And Society, Miriam Lipschutz-Yevick May 1991

Mathematics For Life And Society, Miriam Lipschutz-Yevick

Humanistic Mathematics Network Journal

No abstract provided.


The Annual Meeting Of The Iowa Academy Of Science April 19-20, 1991 [Program, 103rd Meeting], Iowa Academy Of Science Apr 1991

The Annual Meeting Of The Iowa Academy Of Science April 19-20, 1991 [Program, 103rd Meeting], Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Program Summary --- 5
General Session Speakers --- 10
Awards --- 13
Distinguished Fellow --- 13
Distinguished Iowa Scientist --- 14
Symposia Programs --- 15
Poster Session --- 18
Campus Map --- Centerfold
Section Programs --- 19
Agricultural Sciences --- 20
Anthropology --- 21
Botany --- 21
Cellular & Molecular Biology --- 23
Chemical Education --- 27
Chemistry, Inorganic --- 27
Chemistry, Organic --- 29
Conservation --- 31
Earth Science Teaching --- 32
Elementary Science Teaching --- 32
Engineering --- 32
Geology --- 35
Linguistics --- 37
Nursing --- 38
Physics --- 38
Physiology --- 39
Psychology --- 40 …


Program Abstracts, 103rd Session, Iowa Academy Of Science, April 19-20, 1991, Iowa Academy Of Science Apr 1991

Program Abstracts, 103rd Session, Iowa Academy Of Science, April 19-20, 1991, Iowa Academy Of Science

Iowa Academy of Science Documents

Presentation abstracts from the annual meeting of the Iowa Academy of Science


Explorations, Vol. 6, No. 2, Carole J. Bombard, Nick Houtman, William H. Whitaker, Jean M. Andrews, Henry Munson Jr., Jamie Watler, Michael Palmer, Diane J. Garsombke, Thomas W. Garsombke Apr 1991

Explorations, Vol. 6, No. 2, Carole J. Bombard, Nick Houtman, William H. Whitaker, Jean M. Andrews, Henry Munson Jr., Jamie Watler, Michael Palmer, Diane J. Garsombke, Thomas W. Garsombke

Explorations — A Journal of Research

Cover: Untitled #13, Series 2, chalk on paper, by Ronald Ghiz, Associate Professor of Art at the University of Maine.

Articles include:

"Editorial Overview: in this issue," by Carole J. Bombard

"Save the Planet . . . please," by Nick Houtman

"Research and Public Service Recognizing Leadership, Pioneering, and Productivity," Herb Hidu and Stephen Norton

"Private Assistance for Maine’s Hungry," by William H. Whitaker and Jean M. Andrews

"The Ugly Faces of Hunger"

"Explaining the Iranian Revolution," by Henry Munson, Jr.

"Biological Clocks: timing is everything—and everywhere," by Jamie Watler

"Love of Glory and the Common Good: Periclean Democracy and …


Santa Clara Magazine, Volume 33 Number 3, Spring 1991, Santa Clara University Apr 1991

Santa Clara Magazine, Volume 33 Number 3, Spring 1991, Santa Clara University

Santa Clara Magazine

12 - ABORTION : NO SIMPLE ANSWERS Jesuit theologian Ted Mackin examines pro-life and pro-choice positions and reports that neither side is addressing the issue with total honesty. By Theodore J. Mackin, S.J.

16 - STAY AT HOME MOMS Alumnae discuss why they decided to devote all their time and attention to their families. By Michelle Burget Fletcher '78, Brigid Modena Benham '81, and Anne Penoyer King '69

20 - SCU's WINE FAMILIES Northern California's vineyards are fertile ground for Santa Clara graduates. By Rosina Wilson

28 - WORKING THE SUICIDE HOTLINE Within these walls, no secret is too terrible …


The Planet, 1991, Volume 20, Issue 03, Michael J. Lehnert, Associated Students Environmental Center, Western Washington University Apr 1991

The Planet, 1991, Volume 20, Issue 03, Michael J. Lehnert, Associated Students Environmental Center, Western Washington University

The Planet

No abstract provided.


Plate Tectonics, Space, Geologic Time, And The Great Plains: A Primer For Non-Geologists, Robert F. Diffendal Jr. Apr 1991

Plate Tectonics, Space, Geologic Time, And The Great Plains: A Primer For Non-Geologists, Robert F. Diffendal Jr.

School of Natural Resources: Faculty Publications

For most Americans, "The Great Plains" evokes images of grasslands, dust storms, prairie fires, Native Americans on horseback, cowboys and wheat lands, and perhaps flat valleys crossed by braided rivers carrying a heavy load of sand and gravel, extremes of weather, and a climate typified by an alternation of droughts and wetter periods. Geologists picture such general images, too, but they also see radical changes in the landscape over periods expressed in millions rather than hundreds of years. Geologically speaking, human activities on the Great Plains are too recent to have much of a place in the broad geologic history …


The Iowa Science Teachers Fall Conference, 1991, Iowa Academy Of Science Jan 1991

The Iowa Science Teachers Fall Conference, 1991, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Speakers ... 4
Pre-conference Workshops ... 6
General Session ... 9
Concurrent Sessions 1 ... 9
Concurrent Sessions 2 ... 13
Application for Membership ... Centerfold
Registration Fonns ... Centerfold
Luncheon Information ... 17
Concurrent Sessions 3 ... 17
Concurrent Sessions 4 ... 21
Maps ... 25 & 26


Iowa Academy Of Science Directory, 1991-92: Officers, Committees, And Membership Roster, Iowa Academy Of Science Jan 1991

Iowa Academy Of Science Directory, 1991-92: Officers, Committees, And Membership Roster, Iowa Academy Of Science

Iowa Academy of Science Documents

Table of Contents:

Board of Directors ... 5
Program Directors ... 6
Editors ... 6
Committees ... 8
Sections ... 21
Awards of Merit ... 26
Excellence in Science Teaching Awards ... 28
Past Presidents ... 30
Membership Roster ... 31


Graduate Bulletin, 1991-1993, Moorhead State University Jan 1991

Graduate Bulletin, 1991-1993, Moorhead State University

Graduate Bulletins (Catalogs)

No abstract provided.


Bill #91-01-F Asg Purchase Recycled Paper Products For Office Use, Wku Student Government Association Jan 1991

Bill #91-01-F Asg Purchase Recycled Paper Products For Office Use, Wku Student Government Association

Student Government Association

Bill requiring Associated Student Government to use recycled paper products.


Resolution 91-16-S - Unicorn Pizza Paper Products, Wku Student Government Association Jan 1991

Resolution 91-16-S - Unicorn Pizza Paper Products, Wku Student Government Association

Student Government Association

Resolution for Unicorn Pizza to stop using styrofoam containers.


Back Cover Jan 1991

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Index For Volume 98 Jan 1991

Index For Volume 98

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Auxin-Regulated Gene Expression, Tom J. Guilfoyle Jan 1991

Auxin-Regulated Gene Expression, Tom J. Guilfoyle

Journal of the Iowa Academy of Science: JIAS

A number of cDNA clones to independent mRNAs that increase in amount after brief exposure to auxins have been isolated. From soybean, sequenced, and characterized. Increases in mRNA abundance can be detected as early as 2.5 minutes after auxin application to excised elongating regions of soybean hypocotyls. Increased transcription rates on the genes which encode the auxin-responsive mRNAs account, at least partly, for the accumulation of mRNAs. A variety of auxins induce the accumulation of the mRNAs, but other plant hormones have no effect on the mRNA abundance. Some of the genes which encode the mRNAs are clustered in the …


Stimulus Response Coupling In Auxin Action, K. R. Libbenga Jan 1991

Stimulus Response Coupling In Auxin Action, K. R. Libbenga

Journal of the Iowa Academy of Science: JIAS

This paper not available at time of printing.


Lxodes Dammini (Acari, Ixodidae) And Borrelia Burgdorferi In Iowa, Mark G. Novak, Wayne A. Rowley, Kenneth B. Platt, David M. Bartholomew, Michelle D. Senne Jan 1991

Lxodes Dammini (Acari, Ixodidae) And Borrelia Burgdorferi In Iowa, Mark G. Novak, Wayne A. Rowley, Kenneth B. Platt, David M. Bartholomew, Michelle D. Senne

Journal of the Iowa Academy of Science: JIAS

A statewide study to evaluate the presence, distribution and abundance of the deer tick, Ixodes dammini, and the spirochete, Borrelia burgdorfen, in Iowa was initiated in 1989. Six hundred and seventy-one tick collections were received from health professionals, conservation employees and concerned citizens. Additional ticks were obtained by flagging, small mammal trapping and deer checks in selected areas of Iowa. Nine I. dammini were collected in 1989 from seven counties in the eastern half of the state. Six of these were tested for B. burgdorferi and all were negative. Flagging, small mammal trapping and deer checks in eastern Iowa failed …


Radon In Iowa Homes: Results Of Screening Measurements, Laurent Hodges, Lynne Gillette Jan 1991

Radon In Iowa Homes: Results Of Screening Measurements, Laurent Hodges, Lynne Gillette

Journal of the Iowa Academy of Science: JIAS

Homeowner-initiated short-term radon screening measurements in Iowa homes show that only about 30% of the homes have low enough radon levels - below 148 Bq/m (4.0 pC1/L) - that no follow-up measurements are necessary. Over 6 percent of the homes have screening measurements in excess of 740 Bq/m3 (20 pCi/L), a level at which prompt follow-up measurements are recommended. In all parts of the state, the range of radon results extends from low levels (below 37 Bq/m3 = 1 pCi/L) to high levels (above 740 Bq/m3). The average radon results tend to be higher than the …


Front Matter Jan 1991

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


The Planet, 1991, Winter, Michael J. Lehnert, Associated Students Environmental Center, Western Washington University Jan 1991

The Planet, 1991, Winter, Michael J. Lehnert, Associated Students Environmental Center, Western Washington University

The Planet

No abstract provided.


Vascular Flora Of Arend's Kettle, Freda Haffner Kettlehole State Preserve, Dickinson County, Iowa, Edwin L. Freese, William J. Platt Jan 1991

Vascular Flora Of Arend's Kettle, Freda Haffner Kettlehole State Preserve, Dickinson County, Iowa, Edwin L. Freese, William J. Platt

Journal of the Iowa Academy of Science: JIAS

Arend's Kettle is a 5 ha glacial landform in Dickinson County, Iowa. The flora of this kettle was studied over two years prior to acquisition by the Nature Conservancy in 1973. The known vascular flora of Arend's Kettle as of 1973 consisted of 299 species, representing 177 genera and 59 families. The vegetation ranged from xeric short grass prairie along the rims of the kettle to mesic prairie along the middle and lower slopes. In the bottom of the kettle, there was a marsh/seasonal pond community that varied greatly in the amount of water present, depending on rainfall within the …


In Search Of A Gibberellin Receptor, Lalit M. Srivastava, Konrad A. Sechley Jan 1991

In Search Of A Gibberellin Receptor, Lalit M. Srivastava, Konrad A. Sechley

Journal of the Iowa Academy of Science: JIAS

Use of tritiated gibberellins ([3H] GA1, [3H] GA4) of high specific activity and purity has allowed the determination of GA-specific binding sites in several plant tissues both in vivo and in vitro. In cucumber hypocotyls and pea epicotyls which have been most investigated the binding of [3H] GA; occurs to soluble proteins. This binding is saturable ('n' =about 30 pmol. Mg-1 soluble protein), of high affinity (KD= about 70 nM), and is competed for by other GA, and derivatives in proportion to their biological activity in these …


Front Matter Jan 1991

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.