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Reply to Simon and Reed: Independent and converging results rule out historic disturbance and confirm age constraints for Barrier Canyon rock art [Physical Sciences]

30-Dec-2014 | Joel L. Pederson; Melissa S. Chapot; Steven R. Simms; Reza Sohbati; Tammy M. Rittenour; Andrew S. Murray; Gary Cox, Proceedings of the National Academy of Sciences current issue, 2014

We welcome this further discussion of our results on the age of the Great Gallery rock art in the Canyonlands of Utah. The comment by Simon and Reed (1) focuses on just one of the three components of our study (2), which is presented in greater technical detail in ref....

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The first 4d/4f single-molecule magnet containing a {RuIII2DyIII2} core

30-Dec-2014 | Stuart K. Langley; Daniel P. Wielechowski; Veacheslav Vieru; Nicholas F. Chilton; Boujemaa Moubaraki; Liviu F. Chibo ..., Chemical Communication, 2014

We report the synthesis, structure and magnetic properties of the first 4d–4f single-molecule magnet. The complex [RuIII2DyIII2(OMe)2(O2CPh)4(mdea)2(NO3)2] displays a butterfly type core, with an anisotropy barrier of 10.7 cm−1. Ab initio and DFT calculations provide insight into the observed ...

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The first 4d/4f single molecule magnet containing a {RuIII2DyIII2} core

24-Dec-2014 | Keith S. Murray; Daniel Wielechowski; Stuart K Langley; Veacheslav Vieru; Nicholas F Chilton; Boujemaa Moubaraki; Li ..., Chemical Communication, 2014

We report the synthesis, structure and magnetic properties of the first 4d-4f single molecule magnet. The complex [RuIII2DyIII2(OMe)2(O2CPh)4(mdea)2(NO3)2] displays a butterfly type core, with an anisotropy barrier of 10.7 cm-1. Ab initio and DFT calculations provide insight into the observed ...

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Flexible and Stretchable Micromagnet Arrays for Tunable Biointerfacing

23-Dec-2014 | Peter Tseng, Jonathan Lin, Keegan Owsley, Janay Kong, Anja Kunze, Coleman Murray, Dino Di Carlo, Advanced Materials, 2014

A process to surface pattern polydimethylsiloxane (PDMS) with ferromagnetic structures of varying sizes (micrometer to millimeter) and thicknesses (>70 μm) is developed. Their flexibility and magnetic reach are utilized to confer dynamic, additive properties to a variety of substrates, such as ...

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Early social exposure in wild chimpanzees: Mothers with sons are more gregarious than mothers with daughters [Anthropology]

23-Dec-2014 | Carson M. Murray; Elizabeth V. Lonsdorf; Margaret A. Stanton; Kaitlin R. Wellens; Jordan A. Miller; Jane Goodall; An ..., Proceedings of the National Academy of Sciences current issue, 2014

In many mammals, early social experience is critical to developing species-appropriate adult behaviors. Although mother–infant interactions play an undeniably significant role in social development, other individuals in the social milieu may also influence infant outcomes. Additionally, the ...

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In This Issue [This Week in PNAS]

23-Dec-2014 | Proceedings of the National Academy of Sciences current issue, 2014

University, Phoenix, AZ). Early social exposure is important for developing appropriate, species-specific adult behaviors. Carson Murray et al. (pp. 18189–18194) followed wild......

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Cytochrome P450-Mediated Biotransformation of Sorafenib and Its N-Oxide Metabolite: Implications for Cell Viability and Human Toxicity

23-Dec-2014 | Tina B. Gillani; Tristan Rawling; Michael Murray, Chemical Research in Toxicology, 2014

The multikinase inhibitor sorafenib (SRF) is approved for the treatment of renal and hepatic carcinomas and is also undergoing evaluation in therapeutic combinations with other anticancer agents. SRF is generally well tolerated but produces severe toxicities in a significant proportion of ...

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What Controls the Magnetic Exchange Interaction in Mixed‐ and Homo‐Valent Mn7 Disc‐Like Clusters? A Theoretical Perspective

18-Dec-2014 | Kuduva R. Vignesh, Stuart K. Langley, Keith S. Murray, Gopalan Rajaraman, Chemistry - A European Journal, 2014

Abstract Density functional theory (DFT) studies have been undertaken to compute the magnetic exchange and to probe the origin of the magnetic interactions in two hetero‐ and two homo‐valent heptanuclear manganese disc‐like clusters, of formula [MnII4MnIV3(tea)(teaH2)3(peolH)4] (1), ...

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Spp24 Derivatives Stimulate a Gi‐Protein Coupled Receptor‐Erk1/2 Signaling Pathway and Modulate Gene Expressions in W‐20‐17 Cells

15-Dec-2014 | Ke‐Wei Zhao, Elsa J. Brochmann Murray, Samuel S. Murray, Journal of Cellular Biochemistry, 2014

Abstract Secreted phosphoprotein 24 kDa (Spp24) is an apatite‐ and BMP/TGF‐β cytokine‐binding phosphoprotein found in serum and many tissues, including bone. N‐terminally intact degradation products ranging in size from 14 kDa to 23 kDa have been found in bone. The cleavage sites in Spp24 ...

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Dinitrogen Activation Upon Reduction of a Triiron(II) Complex

11-Dec-2014 | Yousoon Lee, Forrest T. Sloane, Geneviève Blondin, Khalil A. Abboud, Ricardo García‐Serres, Leslie J. Murray, Angewandte Chemie International Edition, 2014

Abstract Reaction of a trinuclear iron(II) complex, Fe3Br3L (1), with KC8 under N2 leads to dinitrogen activation products (2) from which Fe3(NH)3L (2‐1; L is a cyclophane bridged by three β‐diketiminate arms) was characterized by X‐ray crystallography. 1H NMR spectra of the protonolysis ...

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