Introduction: Mars’ basaltic crust has been altered by H2O to form hydrated silicates (mostly clays) that are distributed globally [1,2] and extend to great depth [3]. However, climate models for early Mars are challenged to generate warm and wet environments needed to form these minerals via weathering near or at the surface [4,5], and geomorphic evidence for surface hydrology seems to postdat...

nduction of labor is considered necessary in certain clinical situations. These include postdate pregnancy, term premature rupture of membranes, preeclampsia, intrauterine growth retardation, and significant medical diseases such as diabetes mellitus at term. Intravaginal or intracervical dinoprostone (prostaglandin-E2 [PGE2]) is the most used pharmacologic method to ripen the cervix and induce...

Introduction: Artemis measures approximately 2600 km in diameter making it the largest known circular structure on a terrestrial planet. Artemis' most distinctive feature is Artemis Chasma, a ~25-200 km wide, ~1-2 km deep, ~2100 km diameter circular trough surrounding an interior topographic high. Ve-nus' surface abounds with circular to quasi-circular features at a variety of scales including,...

This paper is a complement to the Tectonometamorphic Map of the Canadian Shield, and contains a brief description of the metamorphic history of Proterozoic orogenic belts and rock sequences in the Canadian Shield in Ontario, with a focus on rocks of the Southern and Grenville provinces. Metamorphism in the Southern Province has generally been attributed to the Penokean orogeny (~1879–1820 Ma), ...

Abstract Clastic-dominated lead–zinc (CD Pb–Zn) deposits are an important source of the world’s Pb and Zn supply. Their genesis is contentious due to uncertainties regarding time ore formation relative deposition fine-grained carbonaceous strata that host CD Pb–Zn mineralization. Sulfur-isotopic studies playing role in determining if minerals precipitated when hydrothermal fluids exhaled into w...

This study integrates field structural data, petrographic and geochemical (? 18 O, ? 13 C, ? 47 , 87 Sr/ 86 Sr, elemental composition) analyses U–Pb dating of calcite veins cutting the Bóixols-Sant Corneli anticline (Southern Pyrenees) in order to date investigate spatio-temporal relationships between fluid flow fold evolution. E-W trending grew from Late Cretaceous Paleocene at front Bóixols t...

Macedonian tribe, whose name Tzetzes used instead of the unmetrical "Macedonia". In the quotation, p. 55, from On theriac to Piso, a word which must postdate AD 204, Pinault fails to realize that the author (Galen?) used the semi-religious work "£C1iantgv6iv" ("let drops of incense fall", an emendation already implied in the Latin of Kuhn and made long ago by Cobet). The discussion of Aetius' "...

Jones and Crowe (1) raise issues already addressed in our article (2) based on an inaccurate grasp of the literature and several logical misconceptions. The authors suggest that inputs we chose in our kinetic calculations are unsuitable because we used values only from the Black Sea. As described, we made an extremely conservative estimate because the Black Sea is the most rapid Mn-oxidizing en...

Introduction: Coronae are unique class of structures that were discovered during analysis of data from Venera-15/16 mission [1,2]. The defining element of coronae is their circular rim that consists of either ridges or grooves. In the images taken by Venera-15/16 (~1/4 of the surface of Venus), most of coronae appear to have ridged rim. After Magellan mission it became evident, however, that ri...