4/6/2004:

Intermediate Word:  sabaceous  (a) pertaining to fat  (b) sandy  (c)   (d) gentle
Difficult Word: - apophyge  (a) rough edge of hand-made paper  (b) fronded fern  (c) creeper coming over the top  (d) araucaria


Landfill Garbage Zappers - ABC  Startech Corp. in Wilton, Conn., and the Solena Group in Washington, D.C., use molten hot plasma to scorch garbage in an oxygen-starved container to 30,000 degrees or three times as hot as the sun. The process causes molecules in the trash to break down, creating a stone-like material that can be used in pavement or kitchen tiles, as well as hydrogen-rich gases that are then burned as fuel. Another firm, Changing World Technologies of Philadelphia, Pa., combines waste with water and applies extreme heat and pressure to separate the mixture into gas, light oil, heavy oil and solid carbon. The gas is burned, the water is drained and the oils and carbon are sold as energy sources.
Self-Assembling Proteins May Repair Tissue - SpaceDaily  Protein hydrogels can be genetically engineered to promote the growth of specific cells Johns Hopkins University researchers have created a new class of artificial proteins that can assemble themselves into a gel and encourage the growth of selected cell types. This biomaterial, which can be tailored to send different biological signals to cells, is expected to help scientists who are developing new ways to repair injured or diseased body parts. These scientists hope to advance their techniques to the point where they can treat medical ailments by growing replacement cartilage, bones, organs and other tissue in the lab or within a human body. 

Study Clarifies Evolutionary History Of Early Complex Single-Celled Life - SpaceDaily  A billion years ago (the Neoproterozoic age), complex single-celled organisms, the acritarchs, began to develop, grow, and thrive. Almost a billion years later, the study of the evolutionary history of acritarchs began to bog down amid inconsistencies in the reporting of the diversity of species. Now, a Virginia Tech graduate student has devised a new way to study the ebb and flow of life in the Neoproterozoic and Early Cambrian ages, a period that includes two mass extinctions. "The evolutionary history of acritarchs reported in the literature has been based on the number of species," explains Huntley.





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