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Full-Text Articles in Science and Mathematics Education

Bsc Citylab: Teaching Tomorrow's Technology To Today's Youth, Jeffery Bowen Jun 2005

Bsc Citylab: Teaching Tomorrow's Technology To Today's Youth, Jeffery Bowen

Bridgewater Review

No abstract provided.


Summer Soil Temperatures On Algific Talus Slopes In Northeast Iowa, Tom R. Cottrell, Kyle S. Strode Jan 2005

Summer Soil Temperatures On Algific Talus Slopes In Northeast Iowa, Tom R. Cottrell, Kyle S. Strode

Journal of the Iowa Academy of Science: JIAS

Soil temperatures at 15 cm depth were recorded on a single occasion at multiple grid points on two algific talus slopes during the summer of 1999. To represent and compare soil temperatures over a wider area, soil temperatures were measured (less intensively) at five other algific slopes and three non-algific forested slopes. Algific slopes appear to have greater variation in soil temperatures than non-algific sites. Spatial variation in algific slope soil temperatures ranged from 4-25°C. During the 10 day sample period temporal variation in air temperature at a nearby weather station had a similar range. Isotherm plots reveal a ...


Iowa's Sand Prairie State Preserves: Anomalous Grain-Size Distributions And Optically Stimulated Luminescence (Osl) Dates, Steven H. Emerman, Brian R. Depew, Lisa K. Anderson Jan 2005

Iowa's Sand Prairie State Preserves: Anomalous Grain-Size Distributions And Optically Stimulated Luminescence (Osl) Dates, Steven H. Emerman, Brian R. Depew, Lisa K. Anderson

Journal of the Iowa Academy of Science: JIAS

Grain-size distributions and optically stimulated luminescence (OSL) dates were obtained for the sand from Iowa's five sand prairie state preserves, which are Behren's Ponds and Woodland, Cedar Hills Sand Prairie, Kish-Ke-Kosh Prairie, Marietta Sand Prairie and Rock Island. OSL dates ranged from the late Pleistocene (15,560 years B.P.) to the very late Holocene (as recent as 590 years B.P.), indicating that the late Pleistocene and Holocene Epochs in Iowa have seen multiple episodes of aridity, which is consistent with results from the Nebraska Sand Hills and eolian sand stringers in southeastern Minnesota. The grain-size distributions ...


Cover - Table Of Contents Jan 2005

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Front Matter Jan 2005

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


The Unionid Mussels (Mollusca: Bivalvia: Unionidae) Of Missouri River Floodplain Ditches In Fremont County Southwestern Iowa And Atchison And Holt Counties Northwestern Missouri, Ellet Hoke Jan 2005

The Unionid Mussels (Mollusca: Bivalvia: Unionidae) Of Missouri River Floodplain Ditches In Fremont County Southwestern Iowa And Atchison And Holt Counties Northwestern Missouri, Ellet Hoke

Journal of the Iowa Academy of Science: JIAS

A survey of ditches in the Missouri River floodplain in southwestern Iowa and northwestern Missouri resulted in the recovery of nine unionid mollusk species. The floodplain ditches may provide valuable habitat for mussels in a region that has suffered a tremendous decrease in productive aquatic habitats over the past sixty-eight years. Additional survey activity is needed to determine the complete inventory of unionid mollusks in the area.


Hydrogeology Of Hanging Bog State Preserve: The Role Of Hillside Seeps In Draining The Iowan Surface, William L. Niemann Jan 2005

Hydrogeology Of Hanging Bog State Preserve: The Role Of Hillside Seeps In Draining The Iowan Surface, William L. Niemann

Journal of the Iowa Academy of Science: JIAS

Along the margin of the Cedar River Valley, groundwater discharges from eroded and weathered glacial materials of the Iowan Surface to modern alluvial deposits of the valley floor. Hanging Bog State Preserve, located along this topographic, geologic, and hydrologic boundary, represents one such groundwater discharge location, in the form of a perennial hillside seep. Based on detailed monitoring of surface water and groundwater levels within the preserve for a one-year period, it is shown that a significant quantity of groundwater, collected from a disproportionately large recharge area, is funneled to the valley wall at this site and subsequently carried to ...


Index For The Journal Of The Iowa Academy Of Science Volume 112 Jan 2005

Index For The Journal Of The Iowa Academy Of Science Volume 112

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Discordant Harmonies In Fingernail Clam Populations (Musculium Transversum) Of Mississippi River Backwater Lakes, Jim Eckblad Jan 2005

Discordant Harmonies In Fingernail Clam Populations (Musculium Transversum) Of Mississippi River Backwater Lakes, Jim Eckblad

Journal of the Iowa Academy of Science: JIAS

The populations of Musculium transversum from 8 backwater lakes have been studied over a 29-year period based upon over 440 grab samples. These lakes in Navigation Pool 9 of the Upper Mississippi River (UMR) range in size from 2 to 255 hectare surface area, mean depths from 0.2 to 0.9 meters, with mean water exchange times from 0.5 to almost 57 hours. Samples from the 1989-91 period suggested summer Muscu!ium populations had declined to about 9 percent of their mid-1970 levels. Deterministic models have attempted to explain this decline. More recent sampling suggests a substantial recovery ...


Cover - Table Of Contents Jan 2005

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Front Matter Jan 2005

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


The Moths Of Neal Smith National Wildlife Refuge: A Preliminary Assessment, Michelle N. Lewis, Renae M. Steichen, Keith S. Summerville Jan 2005

The Moths Of Neal Smith National Wildlife Refuge: A Preliminary Assessment, Michelle N. Lewis, Renae M. Steichen, Keith S. Summerville

Journal of the Iowa Academy of Science: JIAS

North American prairie systems are believed to have supported substantial insect biodiversity. Loss of prairie and oak savanna habitats, however, has been severe in many Midwestern states, including Iowa. An unanswered question facing land managers interested in restoring tallgrass prairies to the Iowan landscape is the degree to which restored habitats contain native insect species that are dependent upon prairie habitat. This study reports data from a preliminary survey of the moths of Neal Smith National Wildlife Refuge, a 2,292-ha prairie and oak savanna restoration site in central Iowa. We identified and cataloged a total of 426 species of ...


Editorial Board & Iowa Academy Of Science Officers And Directors Jan 2005

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Back Cover Jan 2005

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Letter To The Editor - Conservation Of Freshwater Mussels In Iowa, K. Elizabeth Poole Jan 2005

Letter To The Editor - Conservation Of Freshwater Mussels In Iowa, K. Elizabeth Poole

Journal of the Iowa Academy of Science: JIAS

Freshwater mussels occur in a variety of aquatic ecosystems worldwide but nowhere is mussel species richness as high as is reported in North America. With nearly 300 recorded species in the U.S., mussels are key components of freshwater biodiversity playing a vital role in benthic communities. Ecologically important in biological processing and nutrient cycling, mussels are also an important food item for a variety of mammals including mink, otter, and raccoon. In addition to ecological importance, freshwater mussels have been economically important in the production of cultured pearls.


Threatened By Industry, Saved By Science: Mussel Propagation At The Fairport Biological Laboratory, James Pritchard Jan 2005

Threatened By Industry, Saved By Science: Mussel Propagation At The Fairport Biological Laboratory, James Pritchard

Journal of the Iowa Academy of Science: JIAS

During the 1890s, people on the Mississippi River exploited mussel populations to support a thriving button industry. Within a brief time, they noticed significant declines in mussel populations, and called on the U.S. Bureau of Fisheries to save the resource. This paper discusses mussel propagation studies, techniques, and activities carried on in association with the Fairport Biological Laboratory (Iowa) from about 1908 to 1932. While scientists developed sophisticated techniques and had success in mussel propagation, changing habitat conditions in the river (caused mainly by pollution and dam construction) meant limited success in rescuing mussel stocks, while the introduction of ...


Aspects Of An Interior Stream Clam Midden From 1915 At Quasqueton, Buchanan County Iowa, Dennis W. Schlicht Jan 2005

Aspects Of An Interior Stream Clam Midden From 1915 At Quasqueton, Buchanan County Iowa, Dennis W. Schlicht

Journal of the Iowa Academy of Science: JIAS

During clam surveys on the Wapsipinicon River in 1991 buried clams were observed in a bank of the river at Quasqueton, Buchanan County, Iowa. An interview with the landowner revealed that the clams were from a 1915 local clamming operation. Excavation and examination of many of the clams reveal interesting differences in species composition and size, when compared to more recent specimens from the river. Observations on the midden were recorded, species determinations were made and measurements were taken. Comparisons are made to two other modern surface surveys on the river. Differences were observed in both species composition and shell ...


Editorial Board & Iowa Academy Of Science Officers And Directors Jan 2005

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Back Cover Jan 2005

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Contents Jan 2005

Contents

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.


Mathematics Specialists Definition Jan 2005

Mathematics Specialists Definition

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.


Hopewell, Virginia: How Do You "Hook" Elementary Teachers Into Enjoying And Seeing The Beauty Of Mathematics?, Y. Smith-Jones Jan 2005

Hopewell, Virginia: How Do You "Hook" Elementary Teachers Into Enjoying And Seeing The Beauty Of Mathematics?, Y. Smith-Jones

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.


Mathematics Specialists In Norfolk Public Schools, D. Walston Jan 2005

Mathematics Specialists In Norfolk Public Schools, D. Walston

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.


Mathematics Professional Development That Focuses On Student Achievement: A Parallel Case Example, N. R. Iverson Jan 2005

Mathematics Professional Development That Focuses On Student Achievement: A Parallel Case Example, N. R. Iverson

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.


Teacher-In-Residence Program At California State University, Chico, W. Fisher Jan 2005

Teacher-In-Residence Program At California State University, Chico, W. Fisher

Journal of Mathematics and Science: Collaborative Explorations

California State University, Chico has incorporated a Teacher-in-Residence program within the Department of Mathematics and Statistics. The purpose of this program is to have an elementary school teacher take a leave of absence from his or her classroom in order to work half—time in the Department of Mathematics at the University and half-time for the Chico Unified School District as a Mathematics Resource Specialist.


Financial Support For Mathematics Specialists' Initiatives In Virginia, R. W. Farley, W. E. Haver, L D. Pitt Jan 2005

Financial Support For Mathematics Specialists' Initiatives In Virginia, R. W. Farley, W. E. Haver, L D. Pitt

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.


Aims & Scope Jan 2005

Aims & Scope

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.


Mathematics Specialists In Alexandria City Public Schools, S. Birnie Jan 2005

Mathematics Specialists In Alexandria City Public Schools, S. Birnie

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.


Mathematics Specialists In Elementary Schools: "The Arlington Story", P. Robertson Jan 2005

Mathematics Specialists In Elementary Schools: "The Arlington Story", P. Robertson

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.


Mathematics Teacher Specialists – Making A Difference For Student Learning, T. Rowan Jan 2005

Mathematics Teacher Specialists – Making A Difference For Student Learning, T. Rowan

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.