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The proliferation of large-scale DNA-sequencing projects in recent years has driven a search for alternative methods to reduce time and cost. Here we describe a scalable, highly parallel sequencing system with raw throughput significantly greater than that of state-of-the-art capillary electrophoresis instruments. The apparatus uses a novel fibre-optic… (More)
ASTM's risk-based approach to petroleum cleanups will soon be applied to chemical contamination.
New international environmental management standards are seen by industry as a means to reduce regulatory stringency, but U.S. regulators are still on the fence.
DNA-programmed chemistry (DPC) is a novel technology for synthesis of a wide variety of organic compounds at nanomolar concentrations under physiologic conditions (1). Annealing of small molecule-oligonucleotide precursors to DNA templates, each with an attached chemical moiety, can generate high amounts of effective molarities of these reactants. This… (More)
The (12)CF(4) molecule has been made to lase at various wavelengths in the 16-microm v(4) + V(2) ? V(2) band by pumping in the 9-microm 0 ? V(2) + V(4) band with (12)C(16)O(2) lines. The strongest reported (12)CF(4) laser line occurs at 615.06 cm(-1) and is pumped by 9R12 [9-microm band, R(12) line]. We have measured, by two techniques, the absorption of… (More)
An attractive source for spaceborne laser communications is the directly modulated single-mode GaAs/GaAlAs injection laser. GaAlAs lasers, however, show low power per diode and wide beam divergence. A simple optical concept for a laser beam combiner overcomes diode laser limitations: an array of closely packed parallel collimated laser beams can be handled… (More)
Ten states begin a coordinated research project to evaluate environmental benefits of the new international standard.
Selected passages, tables or diagrams may be reproduced for such purposes provided acknowledgment of the source is included. Permission for any more extensive reproduction must be obtained from ACIL Tasman on (03) 9600 3144. The professional analysis and advice in this report has been prepared by ACIL Tasman for the exclusive use of the party or parties to… (More)
When U.S. utility restructuring arrives, it may bring more polluting power production, critics say.