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Deguo Kong et al.
Chemosphere, 110, 31-40 (2014-06-02)
The effect of projected future changes in temperature, wind speed, precipitation and particulate organic carbon on concentrations of persistent organic chemicals in the Baltic Sea regional environment is evaluated using the POPCYCLING-Baltic multimedia chemical fate model. Steady-state concentrations of hypothetical
J C Rodríguez-Murillo et al.
The Science of the total environment, 502, 206-217 (2014-09-27)
Increases in dissolved organic carbon (DOC) concentrations have often been reported in rivers and lakes of the Northern Hemisphere over the last few decades. High-quality organic carbon (OC) concentration data have been used to study the change in DOC and
Carbon sequestration: managing forests in uncertain times.
Valentin Bellassen et al.
Nature, 506(7487), 153-155 (2014-02-15)
Clara T Bolton et al.
Nature, 500(7464), 558-562 (2013-08-30)
Coccolithophores are marine algae that use carbon for calcification and photosynthesis. The long-term adaptation of these and other marine algae to decreasing carbon dioxide levels during the Cenozoic era has resulted in modern algae capable of actively enhancing carbon dioxide
J Rivera-Utrilla et al.
Journal of hazardous materials, 187(1-3), 1-23 (2011-02-11)
The main objective of this study was to list and compare the advantages and disadvantages of different methodologies to modify the surface of activated carbons (ACs) for their application as adsorbents to remove organic and inorganic pollutants from aqueous phase.
Ivar Zekker et al.
Environmental technology, 35(9-12), 1565-1576 (2014-04-08)
Maintaining stability of low concentration (< 1 g L(-1)) floccular biomass in the nitritation-anaerobic ammonium oxidation (anammox) process in the sequencing batch reactor (SBR) system for the treatment of high COD (> 15,000 mg O2 L(-1)) to N (1680 mg
K Suresh Kumar Reddy et al.
Environmental technology, 35(1-4), 18-26 (2014-03-08)
The presence of elemental mercury in wellhead natural gas is an important industrial problem, since even low levels of mercury can damage cryogenic aluminium heat exchangers and other plant equipment. Mercury present in the natural gas stream will also dramatically
M G Prokopenko et al.
Nature, 500(7461), 194-198 (2013-08-09)
Ninety per cent of marine organic matter burial occurs in continental margin sediments, where a substantial fraction of organic carbon escapes oxidation and enters long-term geologic storage within sedimentary rocks. In such environments, microbial metabolism is limited by the diffusive
Tate E Barrett et al.
Journal of the Air & Waste Management Association (1995), 64(8), 917-926 (2014-09-05)
Rural and background sites provide valuable information on the concentration and optical properties of organic, elemental, and water-soluble organic carbon (OC, EC, and WSOC), which are relevant for understanding the climate forcing potential of regional atmospheric aerosols. To quantify climate-
Timothy H Tran et al.
Nature, 518(7537), 120-124 (2014-11-11)
Biotin-dependent carboxylases are widely distributed in nature and have important functions in the metabolism of fatty acids, amino acids, carbohydrates, cholesterol and other compounds. Defective mutations in several of these enzymes have been linked to serious metabolic diseases in humans
Suhas et al.
Bioresource technology, 98(12), 2301-2312 (2006-10-24)
The present review compiles the work done over the last few decades on the use of lignin and lignin-based chars and activated carbons as adsorbents for the removal of substances from water and focuses on the utilisation of lignin as
Michael C Dietze et al.
Annual review of plant biology, 65, 667-687 (2013-11-28)
Nonstructural carbon (NSC) provides the carbon and energy for plant growth and survival. In woody plants, fundamental questions about NSC remain unresolved: Is NSC storage an active or passive process? Do older NSC reserves remain accessible to the plant? How
Remote sensing. Carbon-mapping satellite will monitor plants' faint glow.
Eric Hand
Science (New York, N.Y.), 344(6189), 1211-1212 (2014-06-14)
Ying Zhang et al.
Ecotoxicology and environmental safety, 108, 273-280 (2014-08-12)
The impacts of fluopyram on a soil microbial community were studied at three application rates: at the recommended field rate (T1, 0.5mg/kg soil), three-fold recommended field rate (T3, 1.5mg/kg soil) and ten-fold recommended field rate (T10, 5mg/kg soil). Soil samples
Tek Long Chan et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 19(47), 15802-15814 (2013-10-30)
Transition-metal-free cross-coupling reactions have been a hot topic in recent years. With the aid of a radical initiator, a number of unactivated arene C-H bonds can be directly arylated/functionalized by using aryl halides through homolytic aromatic substitution. Commercially available or
Mattias Johansson et al.
Journal of the National Cancer Institute, 106(12), doi:10-doi:10 (2014-11-08)
The etiology of renal cell carcinoma (RCC) is only partially understood, but a metabolic component appears likely. We investigated biomarkers of one-carbon metabolism and RCC onset and survival. The European Prospective Investigation into Cancer and Nutrition (EPIC) recruited 385747 participants
Murugesh Padmanarayana et al.
Biochemistry, 53(30), 5023-5033 (2014-07-08)
Otoferlin is a transmembrane protein consisting of six C2 domains, proposed to act as a calcium sensor for exocytosis. Although otoferlin is believed to bind calcium and lipids, the lipid specificity and identity of the calcium binding domains are controversial.
Marshall Louis Reaves et al.
Nature, 500(7461), 237-241 (2013-08-02)
Cellular metabolism converts available nutrients into usable energy and biomass precursors. The process is regulated to facilitate efficient nutrient use and metabolic homeostasis. Feedback inhibition of the first committed step of a pathway by its final product is a classical
Ángel E Mercado-Pagán et al.
Journal of biomaterials applications, 29(4), 557-565 (2014-06-11)
One of the main challenges for clinical implementation of small diameter vascular grafts (SDVGs) is their limited hemocompatibility. Important design specifications for such grafts include features that minimize the long-term risks of restenosis, fouling, and thrombus formation. In our lab
Xiaoyang Zhang et al.
Journal of nanoscience and nanotechnology, 13(8), 5254-5259 (2013-07-26)
The labeling of living cells with carbon nanoparticles has been increasingly studied both in vivo and in vitro, but concerns about the potential cytotoxicity of these nanoprobes are also increasing. In this study, the fluorescent carbon dots (CDs) without surface
David Kentner et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(27), 9929-9934 (2014-06-25)
Shigella flexneri proliferate in infected human epithelial cells at exceptionally high rates. This vigorous growth has important consequences for rapid progression to life-threatening bloody diarrhea, but the underlying metabolic mechanisms remain poorly understood. Here, we used metabolomics, proteomics, and genetic
Hengzhi You et al.
Nature, 517(7534), 351-355 (2015-01-17)
The development of new reactions forming asymmetric carbon-carbon bonds has enabled chemists to synthesize a broad range of important carbon-containing molecules, including pharmaceutical agents, fragrances and polymers. Most strategies to obtain enantiomerically enriched molecules rely on either generating new stereogenic
Hongyan Song et al.
Journal of nanoscience and nanotechnology, 14(2), 1799-1810 (2014-04-23)
As a novel functional material, carbon nanofiber has many interesting applications in the chemical industry, material science, and energy storage fields. Chemical vapor dispersion and carbonization polymer nanofibers are the two important routes to synthesize carbon nanofibers. In this mini-review
Masahiko Hayashi
Chemical record (New York, N.Y.), 8(4), 252-267 (2008-08-30)
This paper describes the utility of an activated carbon-molecular oxygen system, not only in the oxidation of benzylic and allylic alcohols, but also in the direct carbonylation at the benzylic position. The preparation of a variety of heteroaromatic and aromatic
Astrobiology: Prescient words on comets and life.
Milton Wainwright
Nature, 516(7531), 329-329 (2014-12-19)
Hong Xiang et al.
Journal of environmental sciences (China), 25(4), 677-687 (2013-08-09)
The growth and metabolism of microbial communities on biologically activated carbon (BAC) play a crucial role in the purification of drinking water. To gain insight into the growth and metabolic characteristics of microbial communities and the efficiency of drinking water
Cinzia Formighieri et al.
Archives of microbiology, 196(12), 853-861 (2014-08-15)
Escherichia coli was used as a microbial system for the heterologous synthesis of β-phellandrene, a monoterpene of plant origin with several potential commercial applications. Expression of Lavandula angustifolia β-phellandrene synthase (PHLS), alone or in combination with Picea abies geranyl-diphosphate synthase
Rossana Sidari et al.
International journal of food microbiology, 189, 146-152 (2014-08-26)
Polyphenols are a major component of wine grapes, and contribute to color and flavor, but their influence upon yeast growth forms has not been investigated. In this work we have studied the effect of polyphenols on the ability of natural
Low-temperature preparation of functional carbon nanocapsules via self-assembly and carbonization of hexayne amphiphiles.
Stephen Schrettl et al.
Chimia, 67(6), 429-429 (2013-08-16)
Vaneet Saini et al.
Angewandte Chemie (International ed. in English), 52(43), 11206-11220 (2013-10-10)
Ethylene, the simplest alkene, is the most abundantly synthesized organic molecule by volume. It is readily incorporated into transition-metal-catalyzed carbon-carbon bond-forming reactions through migratory insertions into alkylmetal intermediates. Because of its D2h symmetry, only one insertion outcome is possible. This
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