S — Incompatible Trace Elements in SNCs and Li Isotopes Systematics in a Shergottite J. A. Barrat, P. Beck, M. Chaussidon, Ph. Gillet, A. Jambon, C. Göpel, and V. Sautter Exploring Trace Element and Isotopic Mixing Relationships in the Martian Meteorite Suite

a good understanding of adsorption equilibrium and thermodynamics is required to design and operate an adsorption process. this study was conducted to assess the adsorption percentage of pb2+ ions as a function of contact time, solution ph and temperatures, and adsorbent dosage through a series of batch experiments. the methods including zeta potentials, specific surface area measurements and t...

Electronic Journal of Science Education Vol. 7, No. 4, June 2003 Rules of Engagement: Proceed with Caution when Integrating Multimedia Learning Tools into Existing Course Formats by Mary Elizabeth Dawson,Ph.D. Steven Skinner, Ed.D., and Arthur Zeitlin, Ed.D. Department of Biological Sciences Kingsborough Community College of The City University of New York, Brooklyn, New York, 11235 Phone: (718...

Use of earthworm species to biodegrade various substrates (industrial wastes, agricultural residues, etc.) for composting has proven to be successful after initial stabilization of vermi beds. This study presents optimization of vermi beds (soil + cowdung) for culturing of earthworms (Eisenia fetida, Eudrilus eugeniae, and Megascolex megascolex.). Optimum proportion of soil + cowdung (1:3) for ...

Steingrimsson and Luce (2003a) outlined the second author’s proposed psychophysical theory (Luce, 2002, 2003a,b) and tested behavioral attributes that, separately, gave rise to one psychophysical function, Ψ, that maps pairs of physical intensities onto the positive real numbers that represents subjective summation and a second one, Ψ∗,that represents a form of ratio production. This article ta...

Hirohide Yokokawa, M.D., Ph.D., Aya Goto, M.D., MPH, Ph.D. , and Seiji Yasumura, M.D., Ph.D. , Assistant Professor, Department of Public Health, Fukushima Medical University School of Medicine, Associate Professor, Department of Public Health, Fukushima Medical University School of Medicine, Professor, Department of Public Health...

We studied how soil pH (pHs 4 to 8) influenced the mineralization of low-molecular-weight (LMW)-dissolved organic carbon (DOC) compounds, and how this compared with differences in microbial community structure. The mineralization of LMW-DOC compounds was not systematically connected to differences in soil pH, consistent with soil respiration. In contrast, the microbial community compositions di...

JANUARY 2002 AMERICAN METEOROLOGICAL SOCIETY | D uring the past two years, the University Corporation for Atmospheric Research (UCAR) Board of Trustees and other members of the UCAR university community have become increasingly concerned about the number of students applying for graduate school (Anthes 2000a). A number of us have seen the pool of applicants shrink at our own Ph.D. programs in r...

The paper addresses control related design issues for neutralization plants. Mainly for control reasons, the neutralization is usually performed in several steps (mixing tanks) with gradual change in the concentration. The aim is to give recommendations for issues like tank sizes and number of tanks. Assuming strong acids and bases, we derive linearized relationships from the disturbance variab...