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Organic matter preservation in the carbonate matrix of a recent microbial mat – Is there a ‘mat seal effect’?

27-Jul-2015 | Author(s): Martin Blumenberg, Volker Thiel, Joachim Reitner, Organic Geochemistry, 2015

Publication date: Available online 21 July 2015 Source:Organic Geochemistry Author(s): Martin Blumenberg, Volker Thiel, Joachim Reitner Phototrophic mats (microbial mats with a phototrophic top layer) are complex systems in terms of microbial diversity, biogeochemical cycles and ...

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DISC1 regulates expression of the neurotrophin VGF through the PI3K/AKT/CREB pathway

25-Jul-2015 | Carmen Rodríguez‐Seoane, Adriana Ramos, Carsten Korth, Jesús R. Requena, Journal of Neurochemistry, 2015

Abstract Disrupted in schizophrenia (DISC1) is a risk factor for chronic mental disease. In a previous proteomic study, we reported that knocking down DISC1 results in a sharp decrease in the levels of the neuropeptide precursor VGF (non‐acronymic) and leads to reduced activation of cAMP ...

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[Report] Coherent coupling of a single spin to microwave cavity photons

24-Jul-2015 | J. J. Viennot; M. C. Dartiailh; A. Cottet; T. Kontos, Science , 2015

Electron spins and photons are complementary quantum-mechanical objects that can be used to carry, manipulate, and transform quantum information. To combine these resources, it is desirable to achieve the coherent coupling of a single spin to photons stored in a superconducting resonator. Using a ...

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IJERPH, Vol. 12, Pages 8717-8743: Inventory of Engineered Nanoparticle-Containing Consumer Products Available in the Singapore Retail Market and Likelihood of Release into the Aquatic Environment

24-Jul-2015 | Zhang, Yuanyuan ; Leu, Yu-Rui ; Aitken, Robert J.; Riediker, Michael, International Journal of Environmental Research and Public Health, 2015

Consumer products containing engineered nanoparticles (ENP) are already entering the marketplace. This leads, inter alia, to questions about the potential for release of ENP into the environment from commercial products. We have inventoried the prevalence of ENP-containing consumer products in ...

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Hexahedron Prism-Anchored Octahedronal CeO2: Crystal Facet-Based Homojunction Promoting Efficient Solar Fuel Synthesis

24-Jul-2015 | Ping Li; Yong Zhou; Zongyan Zhao; Qinfeng Xu; Xiaoyong Wang; Min Xiao; Zhigang Zou, Journal of the American Chemical Society, 2015

An unprecedented, crystal facet-based CeO2 homojunction consisting of hexahedron prism-anchored octahedron with exposed prism surface of {100} facets and octahedron surface of {111} facets was fabricated through solution-based crystallographic-oriented epitaxial growth. The photocatalysis ...

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Molecules, Vol. 20, Pages 13536-13549: Antibacterial Activity of Protocatechuic Acid Ethyl Ester on Staphylococcus aureus Clinical Strains Alone and in Combination with Antistaphylococcal Drugs

23-Jul-2015 | Miklasińska, Maria ; Kępa, Małgorzata ; Wojtyczka, Robert D.; Idzik, Danuta ; Zdebik, Anna ; Orlewska, Kamila ; Wąsi ..., Molecules, 2015

The aim of the presented study was to examine in vitro the antibacterial activity of protocatechuic acid ethyl ester (ethyl 3,4-dihydroxybenzoate, EDHB) against Staphylococcus aureus clinical isolates alone and in the combination with four selected antibiotics. The EDHB antimicrobial activity ...

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Important Role of Functional Groups for Sodium Ion Intercalation in Expanded Graphite

23-Jul-2015 | Yong-Ju Kang; Sung Chul Jung; Jang Wook Choi; Young-Kyu Han, Chemistry of Materials, 2015

Expanded graphite oxide (GO) has recently received a great deal of attention as a sodium ion battery anode due to its superior characteristics for sodium ion storage. Here, we report that the sodium ion intercalation behavior of expanded GO strongly depends on the amounts and ratios of different ...

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A vision of graded hemispheric specialization

22-Jul-2015 | Marlene Behrmann, David C. Plaut, Annals of the New York Academy of Sciences, 2015

Understanding the process by which the cerebral hemispheres reach their mature functional organization remains challenging. We propose a theoretical account in which, in the domain of vision, faces and words come to be represented adjacent to retinotopic cortex by virtue of the need to ...

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Self-Equilibration of the Diameter of Ga-Catalyzed GaAs Nanowires

22-Jul-2015 | V. G. Dubrovskii; T. Xu; A. Díaz Álvarez; S. R. Plissard; P. Caroff; F. Glas; B. Grandidier, Nano Letters, 2015

Designing strategies to reach monodispersity in fabrication of semiconductor nanowire ensembles is essential for numerous applications. When Ga-catalyzed GaAs nanowire arrays are grown by molecular beam epitaxy with help of droplet-engineering, we observe a significant narrowing of the diameter ...

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Theoretical Modeling of Plasmon-Enhanced Raman Images of a Single Molecule with Subnanometer Resolution

22-Jul-2015 | Sai Duan; Guangjun Tian; Yongfei Ji; Jiushu Shao; Zhenchao Dong; Yi Luo, Journal of the American Chemical Society, 2015

Under local plasmonic excitation, Raman images of single molecules can now surprisingly reach subnanometer resolution. However, its physical origin has not been fully understood. Here we report a quantum-mechanical description of the interaction between a molecule and a highly confined plasmonic ...

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