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41. Survey of Pigeon River algal communities: distribution and abundance of species at varying depths.

Furman, Mary, Kimball, Heather,

We studied algal communities and their variation between two different depths of the Pigeon River in July and August, 1992 at the University of Michigan Biological Station, Pellston, Michigan. The pur...

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42. Soil Composition

Chris Fox, John Pratte,

Soil is essential for life on Earth. It is needed for food, air, clothing and so much more. Discussion topics include the terms 'soil', 'dirt', and 'sediment', factors affecting the formation of soils...

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43. This Rock Is My Rock, This Rock Is Your Rock

Laure Wallace,

In this activity, students use their observational skills to explore the makeup of various samples of rocks. They will recognize that the rocks are made up of one or more minerals. Educational levels:...

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44. Arthur Ross Hall of Meteorites

This resource looks at meteorites and what they tell scientists about the formation of stars and planets. What Is a Meteorite? discusses the origins and makeup of meteorites, using the Ahnighito and C...

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45. Ancient Crystals Suggest Earlier Ocean

This report describes the findings of two scientists who studied the chemical makeup of crystals of zircon from rocks in Western Australia's Jack Hills. The zircon crystals are thought to be 4.5 billi...

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46. Crisis and transformation : Asean in the new era.

Solingen, Etel.,

This article examines the political consequences of the 1997-1999 Asian crisis for ASEAN's regional cooperation and institutionalization. It relies on a conceptual framework that analyzes the links be...

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47. A validation of ground penetrating radar for reconstructing the internal structure of a rock glacier: Mount Mestas, Colorado, USA

Jorgensen, William Revis,

Rock glaciers are dynamic landforms and, as such, exhibit interesting and welldeveloped structural features, which translate to surface morphology in the form of ridges and furrows. These distinguishi...

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48. ROTATIONAL AND VIBRATIONAL RAMAN SPECTROSCOPY FOR FLOW FROM AN UNDEREXPANDED JET NOZZLE

Bayeh, Alexander,

The objective of this work is the construction of a fully functioning Raman line imaging spectrometer; and the measurement of pressure, temperature, and chemical concentration in supersonic flows issu...

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49. Building Efficiency and Indoor Air Quality - You Can Have Both

Kettler, G. J.,

Providing ventilation for acceptable indoor air quality per ASHRAE Standard 62-1989 does not require large increases in utility costs. Building efficiency does not have to be sacrificed for a healthy ...

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50. Study of properties of sand asphalt using a torsional rheometer

Kasula, Lavan Kumar Reddy,

The modeling of Sand Asphalt and experiments to measure their rheological properties are of vital concern to many industrial processes especially highway and roadway pavement construction industry. A ...

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