Cynthia L. Williams

Learn More
The European Space Agency first Remote Sensing Satellite, ERS-1, offers the first opportunity to monitor a complete seasonal cycle for an Alaskan forest ecosystem using a spaceborne C-band frequency (A = 5.7cm) VV-polarization (vertical transmit, vertical receive) synthetic aperture radar. During the 3-day repeat Commissioning Phase of ERS-1, from August(More)
Boreal ecosystems play an essential role in global climate regulation. Forests constitute pools of terrestrial carbon and are generally considered as global sinks of atmospheric CO2, contributing to attenuating the greenhouse effect. Large amounts of carbon are also stored in boreal lakes, bogs and wetlands, partially released as CH4 and other trace gases(More)
The role of Ca2+/calmodulin-dependent protein kinase (CaM kinase; EC 2.7.1.123) in the generation of Ca2+ signals by muscarinic acetylcholine receptors (mAChR) was studied. Changes in intracellular Ca2+ concentrations ([Ca2+]i) induced by mAChR activation were monitored in SK-N-SH human neuroblastoma cells using the dye Fura-2. SK-N-SH cells express M3(More)
Renewable production of p-xylene from [4 + 2] Diels− Alder cycloaddition of 2,5-dimethylfuran (DMF) and ethylene with H−Y zeolite catalyst in n-heptane solvent is investigated. Experimental studies varying the solid acid catalyst concentration reveal two kinetic regimes for the p-xylene production rate: (i) a linear regime at low acid site concentrations(More)
Although small cell lung carcinoma (SCLC) cells express both voltage-gated Ca2+ channels (VGCC) and second messenger-operated Ca2+ channels (SMOCC), little is known about the factors that regulate the activity of these channels in SCLC cells. Ca2+/calmodulin-dependent protein kinase (CaM kinase) type II has been implicated recently in regulating Ca2+(More)
  • 1