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Full-Text Articles in Physical Sciences and Mathematics

Iowa Academy Of Science: The New Bulletin, V02n2, Spring 2006, Iowa Academy Of Science Apr 2006

Iowa Academy Of Science: The New Bulletin, V02n2, Spring 2006, Iowa Academy Of Science

New Bulletin

Inside This Issue:

--Message from the Executive Director

--Iowa’s Young Scientists Shine at American Junior Academy of Science Conference

--Iowa Academy of Science Election 2006

--Saylorville Visitor Center

--IAS Donors

--Iowa Science Teachers Section Fall Conference


Interagency Science And Research: Quarterly Progress Report, Period Ending March 31, 2006, Margaret N. Rees Mar 2006

Interagency Science And Research: Quarterly Progress Report, Period Ending March 31, 2006, Margaret N. Rees

Interagency Science and Research Strategy

  • Interim (Phase I) Science and Research Strategy under development, with target
    completion by early May 2006.
  • Interagency Science and Research Team meetings conducted approximately every two weeks
  • Team extensively reviewed and approved plans, invitees, and timeline for two
    Ecosystem Health Assessment (Vital Signs) workshops scheduled for May and
    August 2006.


Red Rock Desert Learning Center Core Group Meeting: March 21, 2006, Red Rock Desert Learning Center Mar 2006

Red Rock Desert Learning Center Core Group Meeting: March 21, 2006, Red Rock Desert Learning Center

Reports (RRLC)

  1. Introductions & Announcements (5 min.)
  2. Approval of Minutes from January 17, 2006 Meeting (5 min.)
  3. Update on Project Schedule – Michael Reiland (10 min.)
    A. Utilities
    B. Water Line
    C. Operator RFP
    D. NEPA
  4. Report on Value Analysis Workshops – Michael Reiland / Line & Space
    (10 min.)
    A. Cost Estimates/Inflation
  5. Curriculum Update – Jeanne Klockow (10 min.)
  6. Standing Reports (10 min.)
    A. Line and Space – Les Wallach
    B. BLM Capital Improvements – Michael Reiland
  7. Committee Reports (5 min.)
    A. Building Committee
    B. Design Oversight
    C. Educational Programs
    D. Fund-raising and Partnerships
    E. NEPA
    F. Operations
    G. Other Uses …


Education In The Environment: A Hands-On Student Research And Outdoor Learning Experience: Quarterly Progress Report, Period Ending February 28, 2006, Margaret N. Rees Feb 2006

Education In The Environment: A Hands-On Student Research And Outdoor Learning Experience: Quarterly Progress Report, Period Ending February 28, 2006, Margaret N. Rees

Reports (PLI Education)

During the past three-months, the focus of the university’s efforts has included the following highlights:

  • The 2006 Our Places Tell Stories Conference for place-based educators was held on the UNLV campus, January 24-27, 2006. Attendance totaled 120 participants, who rated the overall content and arrangements at 3.59 on a 4.00 scale.
  • Forever Earth was scheduled 22 days in the past three months, benefiting more than 200 individuals.
  • A $3,000 donation was received for the Forever Earth program.
  • The Year 2 Schedule of Events for the Discover Mojave Outdoor World program is on track for delivering 29 total events, a 190% …


Red Rock Desert Learning Center Core Group Meeting: February 21, 2006, Red Rock Desert Learning Center Feb 2006

Red Rock Desert Learning Center Core Group Meeting: February 21, 2006, Red Rock Desert Learning Center

Reports (RRLC)

Meeting cancelled

  1. Introductions & Announcements (5 min.)
  2. Approval of Minutes from January 17, 2006 Meeting (5 min.)
  3. Update on Project Schedule – Michael Reiland (10 min.)
    A. Utilities
    B. Water Line
    C. Operator RFP
    D. NEPA
  4. Report on Value Analysis Workshops – Michael Reiland / Line & Space
    (10 min.)
  5. Curriculum Update – Jeanne Klockow (10 min.)
  6. Standing Reports (10 min.)
    A. BLM Capital Improvements – Michael Reiland
    B. Community Outreach – LaNelda Rolley
  7. Committee Reports (5 min.)
    A. Building Committee
    B. Design Oversight
    C. Educational Programs
    D. Fund-raising and Partnerships
    E. NEPA
    F. Operations
    G. Other Uses
    H. Wild …


Assessment Of An Outdoor Recreation And Education Program, Daphne Sewing, Jeanne A. Klockow, Public Lands Institute Feb 2006

Assessment Of An Outdoor Recreation And Education Program, Daphne Sewing, Jeanne A. Klockow, Public Lands Institute

Presentations (DM)

  • Introduce economically disadvantaged urban youth, ages 8-12, to outdoor recreation and education.
  • Foster a belief that outdoor recreation plays an important and positive role in the health and fitness of America’s youth.


Red Rock Desert Learning Center & Wild Horse And Burro Facility: Public Meeting Psa For Radio/Tv, Red Rock Desert Learning Center Jan 2006

Red Rock Desert Learning Center & Wild Horse And Burro Facility: Public Meeting Psa For Radio/Tv, Red Rock Desert Learning Center

Oliver Ranch Project

Text of a public service radio announcement for a meeting about the Red Rock Desert Learning Center.


Nature - The Ultimate Classroom, Red Rock Desert Learning Center Jan 2006

Nature - The Ultimate Classroom, Red Rock Desert Learning Center

Oliver Ranch Project

A public meeting will be held to introduce the Red Rock Learning Center, the first outdoor education center for local fifth grade children in Southern Nevada. Designed to enhance math and science skills, the school will be built in the Red Rock Canyon National Conservation Area. It will feature a curriculum that teaches children about conservation and the natural world by increasing their knowledge and understanding of the Mojave Desert ecosystem.


Red Rock Desert Learning Center Core Group Meeting: January 17, 2006, Red Rock Desert Learning Center Jan 2006

Red Rock Desert Learning Center Core Group Meeting: January 17, 2006, Red Rock Desert Learning Center

Reports (RRLC)

  1. Introductions & Announcements (5 min.)
  2. Approval of Minutes from December 6, 2005 Meeting (5 min.)
  3. Update on Project Schedule – Michael Reiland (10 min.)
    A. Utilities
    B. Parking
    C. Construction Estimates/Inflation
  4. Statement of Work/Request for Information Update – Michael Reiland
    (10 min.)
  5. Update on Water Line – Michael Reiland/Las Vegas Valley Water District
    (10 min.)
  6. Update on Environmental Assessment – Michael Reiland (10 min.)
  7. Update on Curriculum Development – Jeanne Klockow (5 min.)
  8. Standing Reports (10 min.)
    A. Line and Space Architects
    B. BLM Capital Improvements – Michael Reiland
    C. Community Outreach – LaNelda Rolley
    --RRDLC Open House, January 26, …


Renewable Energy Alternatives—A Growing Opportunity For Engineering And Technology Education, Kurt A. Rosentrater Jan 2006

Renewable Energy Alternatives—A Growing Opportunity For Engineering And Technology Education, Kurt A. Rosentrater

Kurt A. Rosentrater

A hallmark of the United States’ economic growth is an ever-increasing demand for energy, which has traditionally been met primarily by combusting the hydrocarbons found in fossil fuels. As national security and environmental concerns grow, renewable energy resources are gaining increased attention. Unfortunately, there is currently a dearth of renewable energy coverage in engineering and technology curricula. The objectives of this paper are to examine historical energy data for both traditional as well as alternative energy sources, and to motivate educators to address this gap. Even with the progressive developments of non-traditional energy sources over the years, the U.S. still …


Oliver Ranch Science School Complex & Wild Horse And Burro Facility: Quarterly Progress Report, Period Ending September 30, 2006, Margaret N. Rees Jan 2006

Oliver Ranch Science School Complex & Wild Horse And Burro Facility: Quarterly Progress Report, Period Ending September 30, 2006, Margaret N. Rees

Oliver Ranch Project

Assist in project coordination between numerous stakeholders such as the Clark County School System, Desert Research Institute, Community College of Southern Nevada, UNR Cooperative Extension, Nevada State College, local museums, state parks, non-profit organizations, federal agencies, and the public to ensure appropriate educational curricular activities and venues are provided for in the conceptual design of the School and the Wild Horse and Burro facility where appropriate as well as assist in the NEPA process as needed. The activities will be conducted at least in part by university faculty, staff and students as part of the university’s research, teaching, and service …


Red Rock Desert Learning Center Community Outreach Activities Plan, Red Rock Desert Learning Center Jan 2006

Red Rock Desert Learning Center Community Outreach Activities Plan, Red Rock Desert Learning Center

Oliver Ranch Project

The Red Rock Desert Learning Center is being designed to teach participants about the natural world through inquiry-based experiential and interdisciplinary methods in a residential outdoor setting in Red Rock Canyon National Conservation Area. The intent is for students, teachers, and researchers to gain an appreciation of desert ecosystems and to begin to apply and connect their knowledge to world ecological systems. The campus will incorporate many “green building” systems in its design and operation, and those systems will be an active part of the school’s curriculum.


Undergraduates' Use Of Mathematics Textbooks, Bret Benesh, Tim Boester, Aaron Weinberg, Eimilie Wiesner Jan 2006

Undergraduates' Use Of Mathematics Textbooks, Bret Benesh, Tim Boester, Aaron Weinberg, Eimilie Wiesner

Mathematics Faculty Publications

No abstract provided.


Cover - Table Of Contents Jan 2006

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Changes In Land Cover And Breeding Bird Populations With Restoration Of Riparian Habitats In East-Central Iowa, Thomas J. Benson, James J. Dinsmore, William L. Hohman Jan 2006

Changes In Land Cover And Breeding Bird Populations With Restoration Of Riparian Habitats In East-Central Iowa, Thomas J. Benson, James J. Dinsmore, William L. Hohman

Journal of the Iowa Academy of Science: JIAS

Conversion of Midwestern riparian areas for agricultural production has greatly altered their function and suitability for birds and other wildlife. Recently, however, restoration of riparian functions has been a major focus of land management agencies in the Midwest. We used historic land-use data to describe land-cover changes since European settlement and the subsequent effects of habitat restoration efforts on the landscape along a section of the Iowa River in east-central Iowa. We then used bird-density data collected in a subset of the study area in 2001 and 2002 to estimate changes in breeding bird populations of the entire study area …


Winter Bird Use Of Conservation Reserve Program Fields Harvested For Biomass, Les D. Murray, Louis B. Best Jan 2006

Winter Bird Use Of Conservation Reserve Program Fields Harvested For Biomass, Les D. Murray, Louis B. Best

Journal of the Iowa Academy of Science: JIAS

As Conservation Reserve Program (CRP) contracts expire, many fields may be returned to agricultural production. Growing switchgrass (Panicum virgatum) as a biomass fuel is an alternative to returning fields to rowcrops. CRP fields provide winter cover for birds, but the harvest of biomass would remove most of the cover and affect bird use of the fields. We estimated winter bird abundances in nonharvested, total-harvested, and partially (strip) harvested switchgrass fields in southern Iowa. Song sparrows (Melospiza melodia) were observed only in strip-harvested fields and ring-necked pheasants (Phasianus colchicus) were observed only in nonharvested fields and uncut areas of strip-harvested fields. …


Artists' Depictions Of Catsteps In The Loess Hills Of Iowa: Evidence For Mid-Nineteenth Century Climate Change, Kimberly R. Dillon, Steven H. Emerman, Pamela K. Wilcox Jan 2006

Artists' Depictions Of Catsteps In The Loess Hills Of Iowa: Evidence For Mid-Nineteenth Century Climate Change, Kimberly R. Dillon, Steven H. Emerman, Pamela K. Wilcox

Journal of the Iowa Academy of Science: JIAS

Catsteps are the staircase-like features common on hillslopes of the Loess Hills of western Iowa. The record of artistic depictions of the Loess Hills was examined to determine when catsteps appeared. George Catlin, Karl Bodmer, and John James Audubon traveled up the Missouri River m 1832, 1833 and 1843, respectively, and between them, produced 31 works of art depicting either the Loess Hills or the loess bluffs on the Nebraska side of the river. Only three works by Bodmer of Blackbird Hill on the Nebraska side possibly show catsteps. The Assistant State Geologist, Orestes St. John, produced six sketches of …


Silicification Of Corals, Stromatoporids, And Brachiopods At The Weathered Surface Within The Devonian-Age Little Cedar Formation (Solon And Rapid Members) In Eastern Iowa, Adam L. Majeski, Paul L. Garvin Jan 2006

Silicification Of Corals, Stromatoporids, And Brachiopods At The Weathered Surface Within The Devonian-Age Little Cedar Formation (Solon And Rapid Members) In Eastern Iowa, Adam L. Majeski, Paul L. Garvin

Journal of the Iowa Academy of Science: JIAS

Diagenesis of fossils contained in middle-Devonian limestones was studied at the Troy Mills and Robins quarries in Linn County, Iowa and at the Four County and Ernst quarries in Johnson County, Iowa. Fossils located at weathered bedrock surfaces were preferentially silicified, and the silicification affected corals, stromatoporids and, to a limited extent, brachiopods, but not other fossils or the host rock. The siliceous horizon extends no more than a few centimeters below the weathered surfaces, suggesting that silicification was constrained by them. Silica for silicification might have come from a variety of sources, including sponge spicules or radiolarian tests, insoluble …


Editorial Board & Iowa Academy Of Science Officers And Directors Jan 2006

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Back Cover Jan 2006

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Communicating Applied Mathematics: Four Examples, Daniel E. Finkel, Christopher Kuster, Matthew Lasater, Rachel Levy, Jill P. Reese, Ilse C. F. Ipsen Jan 2006

Communicating Applied Mathematics: Four Examples, Daniel E. Finkel, Christopher Kuster, Matthew Lasater, Rachel Levy, Jill P. Reese, Ilse C. F. Ipsen

All HMC Faculty Publications and Research

Communicating Applied Mathematics is a writing- and speaking-intensive graduate course at North Carolina State University. The purpose of this article is to provide a brief description of the course objectives and the assignments. Parts A–D of of this article represent the class projects and illustrate the outcome of the course:

The Evolution of an Optimization Test Problem: From Motivation to Implementation, by Daniel E. Finkel and Jill P. Reese

Finding the Volume of a Powder from a Single Surface Height Measurement, by Christopher Kuster

Finding Oscillations in Resonant Tunneling Diodes, by Matthew Lasater

• …


Electronic Mathematics, Aidan O'Donoghue Jan 2006

Electronic Mathematics, Aidan O'Donoghue

Theses

Recent times have seen an explosion in the use of interactive technologies in the delivery of learning content to students in all educational sectors in Ireland. This expansion has led to the creation of modem day phenomenons such as global and ‘teacherless’ classrooms.

The research study I have undertaken is to determine if students perform to the same standard when learning through an interactive educational software application as opposed to a more traditional setting of learning ’through’ a teacher in a classroom. The application being developed for this study enables students to learn the ordinary level leaving certificate mathematics course …


Research Plan And Preliminary Results - A Field Research Site For Emerging Contaminants In Iowa, Douglas J. Schnoebelen, Dana W. Kolpin, Larry B. Barber, Edward T. Furlong, Michael M. Meyer, Mary Skopec Jan 2006

Research Plan And Preliminary Results - A Field Research Site For Emerging Contaminants In Iowa, Douglas J. Schnoebelen, Dana W. Kolpin, Larry B. Barber, Edward T. Furlong, Michael M. Meyer, Mary Skopec

Journal of the Iowa Academy of Science: JIAS

Research has recently documented the prevalence of a wide variety of pharmaceuticals and other emerging contaminants (ECs) in streams across the United States. Wastewater treatment plants (WWTPs) have been found to be an important source and collection point of ECs to streams as many ECs are incompletely removed during treatment. To investigate the complex instream processes (e.g., dilution, sorption, degradation, dispersion, etc.) chat can affect ECs following their input from a WWTP and determining if such input is having an effect on the aquatic ecosystem requires the integration of multi-disciplinary efforts at a carefully selected field site. Preliminary work has …


Editorial Board & Iowa Academy Of Science Officers And Directors Jan 2006

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Relation Of Riparian Buffer Strips To In-Stream Habitat, Macroinvertebrates And Fish In A Small Iowa Stream, Jeremy P. Duehr, Michael J. Siepker, Clay L. Pierce, Thomas M. Isenhart Jan 2006

Relation Of Riparian Buffer Strips To In-Stream Habitat, Macroinvertebrates And Fish In A Small Iowa Stream, Jeremy P. Duehr, Michael J. Siepker, Clay L. Pierce, Thomas M. Isenhart

Journal of the Iowa Academy of Science: JIAS

Macroinvertebrate and fish habitat is often degraded as a result of agriculture. Riparian buffer strips are commonly used to counteract the negative effects of agriculture in headwater streams. We assessed the relation of multi-aged riparian buffer strips to in-stream habitat, macroinvertebrate and fish assemblages in an Iowa stream. In-stream habitat, macroinvertebrates, and fish were sampled from two buffered sites and two unbuffered sites, with the greatest substrate, water depth, and velocity heterogeneity occurring in buffered sites. The highest macroinvertebrate richness (11) as well as fish species richness (14), diversity (1.99) and IBI score (37) were found in the site buffered …


Relation Of Riparian Buffer Strips To In-Stream Habitat, Macroinvertebrates And Fish In A Small Iowa Stream, Jeremy P. Duehr, Michael J. Siepker, Clay L. Pierce, Thomas M. Isenhart Jan 2006

Relation Of Riparian Buffer Strips To In-Stream Habitat, Macroinvertebrates And Fish In A Small Iowa Stream, Jeremy P. Duehr, Michael J. Siepker, Clay L. Pierce, Thomas M. Isenhart

Journal of the Iowa Academy of Science: JIAS

Macroinvertebrate and fish habitat is often degraded as a result of agriculture. Riparian buffer strips are commonly used to counteract the negative effects of agriculture in headwater streams. We assessed the relation of multi-aged riparian buffer strips to in-stream habitat, macroinvertebrate and fish assemblages in an Iowa stream. In-stream habitat, macroinvertebrates, and fish were sampled from two buffered sites and two unbuffered sites, with the greatest substrate, water depth, and velocity heterogeneity occurring in buffered sites. The highest macroinvertebrate richness (11) as well as fish species richness (14), diversity (1.99) and IBI score (3 7) were found in the site …


Back Cover Jan 2006

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Cover - Table Of Contents Jan 2006

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Front Matter Jan 2006

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Use Of Artificial Enclosures To Determine The Survival Of Rana Pipiens Larvae In Upper Midwestern Agricultural Ponds, Joshua M. Kapfer, Mark B. Sandheinrich, Melinda G. Knutson Jan 2006

Use Of Artificial Enclosures To Determine The Survival Of Rana Pipiens Larvae In Upper Midwestern Agricultural Ponds, Joshua M. Kapfer, Mark B. Sandheinrich, Melinda G. Knutson

Journal of the Iowa Academy of Science: JIAS

Amphibians in the upper Midwest use agricultural ponds for breeding. Unfortunately, the risks (both direct and indirect) associated with using these ponds are poorly understood in both amphibian adults and larvae. In order to quantify these risks, we performed a comparison of larval survival rates between agricultural and natural ponds in southeastern Minnesota during the spring and summer of 2001. During this time, larval survival was observed in Rana pipiens tadpoles raised through metamorphosis in enclosures placed in agricultural and natural ponds. In addition, we measured the levels of nutrients commonly linked with agricultural ponds (i.e., ammonia, total phosphorous, and …