22,301 research outputs found

    The Effect of Green Payments on the Diffusion of Conservation Technologies

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    The benefits from green payments for the adoption of a conservation technology or practice are reduced if the technology would have eventually been adopted regardless of the green payment. This source of additionality is likely a significant concern for some technologies subsidized by EQIP.Environmental Economics and Policy, Research and Development/Tech Change/Emerging Technologies,

    Lessons for future public policy and research

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    Public policy ; Welfare

    A Mathematica interface to NNPDFs

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    We present a Mathematica interface for handling the parton distribution functions of the NNDPF Collaboration, available from the NNPDF hepforge website http://nnpdf.hepforge.org/. As a case study we briefly summarise the first PDF set which includes all relevant LHC data, NNPDF2.3, and demonstrate the use of our new Mathematica interface.Comment: 4 pages, 5 figures, to appear in the proceedings of the 16th International Conference in Quantum Chromodynamics (QCD2012), Montpellier July 201

    Leavitt RR-algebras over countable graphs embed into L2,RL_{2,R}

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    For a commutative ring RR with unit we show that the Leavitt path algebra LR(E)L_R(E) of a graph EE embeds into L2,RL_{2,R} precisely when EE is countable. Before proving this result we prove a generalised Cuntz-Krieger Uniqueness Theorem for Leavitt path algebras over RR.Comment: 17 pages. At the request of a referee the previous version of this paper has been split into two papers. This version is the first of these papers. The second will also be uploaded to the arXi

    L2,ZL2,ZL_{2,\mathbb{Z}} \otimes L_{2,\mathbb{Z}} does not embed in L2,ZL_{2,\mathbb{Z}}

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    For a commutative ring RR with unit we investigate the embedding of tensor product algebras into the Leavitt algebra L2,RL_{2,R}. We show that the tensor product L2,ZL2,ZL_{2,\mathbb{Z}}\otimes L_{2,\mathbb{Z}} does not embed in L2,ZL_{2,\mathbb{Z}} (as a unital *-algebra). We also prove a partial non-embedding result for the more general L2,RL2,RL_{2,R} \otimes L_{2,R}. Our techniques rely on realising Thompson's group VV as a subgroup of the unitary group of L2,RL_{2,R}.Comment: 16 pages. At the request of a referee the paper arXiv:1503.08705v2 was split into two papers. This is the second of those paper

    Stem cells conditioned medium: a new approach to skin wound healing management

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    Stem cell biology has gained remarkable interest in recent years, driven by the hope of finding cures for numerous diseases including skin wound healing through transplantation medicine. Initially upon transplantation, these cells home to and differentiate within the injured tissue into specialised cells. Contrariwise, it now appears that only a small percentage of transplanted cells integrate and survive in host tissues. Thus, the foremost mechanism by which stem cells participate in tissue repair seems to be related to their trophic factors. Indeed, stem cells provide the microenvironment with a wide range of growth factors, cytokines and chemokines, which can broadly defined as the stem cells secretome. In in vitro condition, these molecules can be traced from the conditioned medium or spent media harvested from cultured cells. Conditioned medium now serves as a new treatment modality in regenerative medicine and has shown a successful outcome in some diseases. With the emergence of this approach, we described the possibility of using stem cells conditioned medium as a novel and promising alternative to skin wound healing treatment. Numerous pre-clinical data have shown the possibility and efficacy of this treatment. Despite this, significant challenges need to be addressed before translating this technology to the bedside.Article Link: http://onlinelibrary.wiley.com/doi/10.1002/cbin.10138/pd
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