Introduction. The Medusae Fossae Formation (MFF) is an enigmatic formation located between 130°-230°E and 12°S-12°N, in the southern parts of the Elysium and Amazonis quadrangles and the northern parts of the Aeolis and Memnonia quadrangles. It covers an area of approximately 2.1 x 10 km and has an estimated volume of 1.4 x 10 km [1]. The formation is composed of highly eroded, finegrained, fri...

Introduction: Our goal is to identify the optimal wavelengths for studying volcanic activity on Io. While better temporal, spatial, and spectral resolution is always desired, practical limitations lead one to limit both the wavelength range and spectral resolution of an observation. Our primary motivation is to assist the development of future spacecraft observations, but these results are also...

Low-voltage-activated Ca(2+) currents (LVA-I(Ca)) are believed to perform several roles in neurons such as lowering the threshold for action potentials, promoting burst firing and oscillatory behavior, and enhancing synaptic excitation. They also may allow rapid increases in intracellular Ca(2+) concentration. We discovered LVA-I(Ca) in both members of paired mechanoreceptor neurons in a spider...

Introduction: New high-resolution datasets have prompted a mapping-based study of the Echus Chasma and Kasei Valles system. Some of the highlights of our new findings from the Amazonian (<1.8 Ga) period in this area include (1) a new widespread platy-flow surface material (unit Apf) that is interpreted to be 2,100-km-runout flood lavas sourced from Echus Chasma; and (2) a fracture in Echus Chas...

The eruptive unrests of active volcanoes are always associated to the emission of molten rocks at temperatures between 900-1500K, and to power releases typically above 10 Watts. Such high-temperature, surface volcanic features present overall moderate size, spanning in width between a few tens of meters (small active lava flows) and several hundred meters (large active lava flows, molten lava l...

PURPOSE Few studies have investigated the marginal accuracy of 3-unit zirconia fixed partial dentures (FPDs) fabricated by computer-aided design/computer-aided manufacturing (CAD/CAM) system. The purpose of this study was to compare the marginal fit of zirconia FPDs made using two CAD/CAM systems with that of metal-ceramic FPDs. MATERIALS AND METHODS Artificial resin maxillary central and lat...

0019-1035/$ see front matter 2009 Elsevier Inc. A doi:10.1016/j.icarus.2009.10.001 * Corresponding author. Address: Geological Scie Brook St., Box 1846, Providence, RI 02912, USA. Fax: E-mail address: [email protected] (L. Kerb The Medusae Fossae Formation (MFF), covering about 2.1 10 km (with an estimated volume of 1.4 10 km) and straddling the equatorial region of Mars east of Tharsis, h...

[1] The Hawaiian-Emperor seamount chain is the ‘‘type’’ example of an age-progressive, hot spotgenerated intraplate volcanic lineament. However, our current knowledge of the age distribution within this province is based largely on radiometric ages determined several decades ago. Improvements in instrumentation, sample preparation methods, and new material obtained by recent drilling warrant a ...

OBJECTIVE The objective of our study was to evaluate a new 3D fast spoiled gradient-recalled echo (FSPGR) sequence referred to as modified liver acceleration volume acquisition (LAVA) for high-resolution gadolinium-enhanced dual arterial phase liver MRI and to determine the effect of this technique on the timing of the contrast bolus and lesion detection. MATERIALS AND METHODS Gadolinium-enha...

II ABSTRACT Mount Erebus has long been recognized to produce very similar seismic signatures associated with its Strombolian eruptions. decorrelation of the coda, accompanied by relative stability in the early seismogram. Using coda wave interferometry, this decorrelation was interpreted as a median change within the volcano. Closer examination of this data in this thesis shows that clipping du...