INTRODUCTION AND OBJECTIVES The presence of post-anoxic encephalopathy after an episode of aborted sudden cardiac death is a serious medical and social problem. PATIENTS AND METHOD Of 193 patients admitted to the coronary unit during a 12-year period with aborted sudden cardiac death, 104 died (54%) and 89 survived the episode (46%). We compared the characteristics and 6-month prognosis betwe...

Medium-sized wastewater treatment plants are considered too small to implement anaerobic digestion technologies and too large for extensive treatments. A promising option as a sewage sludge reduction method is the inclusion of anoxic time exposures. In the present study, three different anoxic time exposures of 12, 6 and 4 hours have been studied to reduce sewage sludge production. The best ano...

The early Albian Oceanic Anoxic Event 1b (OAE 1b) is well documented in the Tethys, Pacific and North Atlantic, but few studies have evaluated whether or not terrestrial records of OAE exist. In order to identify infer possible driving mechanisms, an integrated multi-proxy study from late Aptian Fuxin lacustrine basin was conducted, including thick, organic-rich black mudstones, total organic c...

Deep ocean blue holes possess steep physicochemical gradients, especially low dissolved oxygen concentration, which shape the extraordinary microbial communities. However, environmental responses of microorganisms with different lifestyles and knowledge culturable in are still unknown. Here, we investigated bacterial community structure world’s deepest hole - Yongle Blue Hole (YBH) South China ...

The ocean and atmosphere were largely anoxic in the early Precambrian, resulting in an Fe cycle that was dramatically different than today’s. Extremely Fe-rich sedimentary deposits—i.e., Fe formations—are the most conspicuous manifestation of this distinct Fe cycle. Rare Earth Element (REE) systematics have long been used as a tool to understand the origin of Fe formations and the corresponding...

BACKGROUND Marine microbial communities have been essential contributors to global biomass, nutrient cycling, and biodiversity since the early history of Earth, but so far their community distribution patterns remain unknown in most marine ecosystems. METHODOLOGY/PRINCIPAL FINDINGS The synthesis of 9.6 million bacterial V6-rRNA amplicons for 509 samples that span the global ocean's surface to...

Diversity of Bacteria and Archaea was studied in deep marine sediments by PCR amplification and sequence analysis of 16S rRNA and methyl co-enzyme M reductase (mcrA) genes. Samples analysed were from Ocean Drilling Program (ODP) Leg 190 deep subsurface sediments at three sites spanning the Nankai Trough in the Pacific Ocean off Shikoku Island, Japan. DNA was amplified, from three depths at site...

Copyright © 2012 by The Geochemical Society of Japan. al., 1996, 2004; Zheng et al., 2000; Algeo and Lyons, 2006; Tribovillard et al., 2004, 2006), and formation or subsequent removal of these intermediates may be one way of driving variations in Mo isotope fractionation under reducing conditions (Neubert et al., 2008). In the open ocean, which is generally devoid of dissolved sulfide, Mo is pr...

Recently, evidence suggests that dark CO2 fixation in the pelagic realm of the ocean does not only occur in the suboxic and anoxic water bodies but also in the oxygenated meso- and bathypelagic waters of the North Atlantic. To elucidate the significance and phylogeny of the key organisms mediating dark CO2 fixation in the tropical Atlantic, we quantified functional genes indicative for CO2 fixa...