Endothelial dysfunction is one of the main consequences of the toxic effects of cigarette smoke on the vascular system. Increasing evidence suggests that the small G-protein RhoA and its downstream effectors, the Rho-kinases (ROCKs), are involved in systemic endothelial dysfunction induced by cigarette smoke. This study aimed to evaluate the role of the RhoA/ROCKs pathway in pulmonary artery en...

Reservoir rocks, regardless of what kind (oil-, gasor water-bearing), are classified by their specific properties. Most rock properties, such as storage, permeability, electric conductivity, heat capacity and so on are determined by laboratory experiments and field tests under different external conditions. Besides temperature, pressure and chemical reactions, also the geometry of the pore spac...

A variety of igneous, sedimentary and metamorphic Palaeozoic rocks from Tasmania have similar directions of NRM-steeply upward. Although the mean direction is not significantly difIerent at the 95% confidence level from the present field, its inclination is slightly steeper. Moreover, the palaeomagnetic pole calculated from these directions is closer to Tertiary poles from Australia than to the...

The Swiss Jura is part of a larger region, the Jura, which stretches from Geneva to Germany, partly as a series of folds, partly as tablelands. The mountains were formed during the late phase of the Alpine folding during the Tertiary and are composed of Mesozoic rocks, mainly limestone and clay. The changing strata give way to a particular landscape, and the presence of limestone makes it a vas...

One of the most prominent features on gravity and aeromagnetic maps of the United States is a series of major, generally linear anomalies that extend from central Kansas to Lake Superior and then turn southward into central Michigan (Figures 1, 2). This system of anomalies clearly reflects major geological features, and as such it must represent a very significant episode in the history of the ...

available online at http://meteoritics.org 1493 © The Meteoritical Society, 2005. Printed in USA. Bosumtwi impact structure, Ghana: Geochemistry of impactites and target rocks, and search for a meteoritic component Xiongxin DAI1, 4, Daniel BOAMAH1, Christian KOEBERL1*, Wolf Uwe REIMOLD2, Gordon IRVINE3, and Iain MCDONALD3 1Department of Geological Sciences, University of Vienna, Althanstrasse 1...

Endothelial dysfunction is one of the main consequences of the toxic effects of cigarette smoke on the vascular system. Increasing evidence suggests that the small G-protein Rho-A and its downstream effectors, the Rho-kinases (ROCKs), are involved in systemic endothelial dysfunction induced by cigarette smoke. This study aimed to evaluate the role of the RhoA/ROCKs pathway in pulmonary artery e...

Abstract The time-dependent stability of tunnels is an important and challenging topic, mainly when the tunnel excavated in incompetent weak rocks. creep property rock one crucial mechanical properties main factor affecting long-term masses. Also, water as environmental influences both short-term behavior rocks causes geotechnical engineering disasters, such collapse, slope sliding, surface sub...

study area is located in district of bajestan and ferdows cities, ne of iran. structurally, this area is part of lut block. the oldest exposed rocks, to the north of intrusive rocks and in eastern bajestan, are meta-chert, slate, quartzite, thin-bedded crystalline limestone and meta-argillite. the sedimentary units are: sardar formation (carboniferous), jamal formation (permian), sorkh shale an...

The engraved trails of rocks on the nearly flat, dry mud surface of Racetrack Playa, Death Valley National Park, have excited speculation about the movement mechanism since the 1940s. Rock movement has been variously attributed to high winds, liquid water, ice, or ice flotation, but has not been previously observed in action. We recorded the first direct scientific observation of rock movements...