Phenomenology of TMDs

We present a review of current Transverse Momentum Dependent (TMD) phenomenology focusing our attention on the unpolarized TMD parton distribution function and the Sivers function. The paper introduces and comments about the new Collins-Soper-Sterman (CSS) TMD evolution formalism. We make use of a selection of results obtained by several groups to illustrate the achievements and the failures of the simple Gaussian approach and the TMD CSS evolution formalism.Comment: 10 pages, 5 figures, to appear in the proceedings of the TRANSVERSITY 2014, Chia, Italy, 9-13 June, 201

Black hole solutions of dimensionally reduced Einstein-Gauss-Bonnet gravity with a cosmological constant

We study the phase space of the spherically symmetric solutions of the system obtained from the dimensional reduction of the six-dimensional Einstein-Gauss-Bonnet action with a cosmological constant. We show that all the physical solutions have anti-de Sitter asymptotic behavior.Comment: 13 pages, plain Te

Planning and Proof Planning

. The paper adresses proof planning as a specific AI planning. It describes some peculiarities of proof planning and discusses some possible cross-fertilization of planning and proof planning. 1 Introduction Planning is an established area of Artificial Intelligence (AI) whereas proof planning introduced by Bundy in [2] still lives in its childhood. This means that the development of proof planning needs maturing impulses and the natural questions arise What can proof planning learn from its Big Brother planning?' and What are the specific characteristics of the proof planning domain that determine the answer?'. In turn for planning, the analysis of approaches points to a need of mature techniques for practical planning. Drummond [8], e.g., analyzed approaches with the conclusion that the success of Nonlin, SIPE, and O-Plan in practical planning can be attributed to hierarchical action expansion, the explicit representation of a plan's causal structure, and a very simple form of propo..

Flaw-tolerance in silk fibrils explains strength, extensibility and toughness of spider silk

Silk is an ancient but remarkably strong, extensible and tough material made from simple protein building blocks. Earlier work has shown that the particular molecular geometry of silk with a composite of semi-amorphous and nanocrystalline beta-sheet protein domains provides the structural basis for its characteristic softening-stiffening behavior and remarkable strength at the nanoscale. Yet, an open question remains as to how these nanoscale properties are upscaled so effectively to create strong, extensible and tough silk fibers. Here we discover that the geometric confinement of fibrils to ≈50-100 nm width and arranged in bundles to form larger-scale silk fibers, is the key to explaining the upscaling of the mechanical properties of silk from the atomistic scale upwards. We find that under this geometric confinement, hundreds of thousands of protein domains unfold simultaneously and thereby act synergistically to resist deformation and failure, providing access to enhanced large-scale strength, extensibility and toughness. Moreover, since the material is in a flaw-tolerant state under this geometric confinement, structural inhomogeneities such as cavities or tears that typically act as stress concentrators do not compromise the material performance. Indeed, experimental work showed that the diameter of silk fibrils that make up larger-scale silk fibers are on the order of 20-100 nm, in agreement with our findings. The exploitation of this mechanism in engineering design enables the synthesis of hierarchical fiber materials for superior performance despite limited and inferior building blocks

Prinsip dan Batasan Konsumsi Islami

Konsumsi identik dengan makan dan minum. Dapat pula dipahami memakai atau menggunakan produk, Konsumsi juga berarti setiap tindakan pengeluaran atau mengurangi nilai barang dan jasa. Pelaku yang mengkonsumsi dinamakan konsumen. Konsumen mempertimbangkan nilai konsumsi pada aspek maslahat. Realita dilapangan aspek maslahat tersebut tidak menjadi dasar menentukan sebuah keputusan, sehingga konsumsi tanpa batas menjadi sebuah fenomena yang berkembang seiring dengan Perubahan global

Gentrification as a Blanket Concept: A Tale of Resisting and Contesting Neoliberal Urbanization Programmes

This study focuses on the hegemonic ascendancy of neoliberalism encountering contestations and social unrest in Istanbul (Turkey).Through the case of Sulukule (Istanbul), our aim is to illustrate how gentrification as a neoliberal instrument utilized by a conservative/Islamist local government intervene the urban space not only for economic purposes but also culturally. This study analyzes this process, which went through in Sulukule, a former low-income neighborhood, mainly inhabited by a Gypsy community, sustaining livelihoods through a historically created entertainment culture, which was not welcomed by the conservative political cadres. This study turns the attention to the dynamics generated at the interstices of economy, politics and society, and delivers a tale of resistance and contestation to the uneasy marriage between conservative Islamism and neoliberalism. The concept of gentrification/re-generation is very much employed and referred to the diffusion of neoliberal urban policies in the context of neighborhoods as it is also put forth in this study. The case of Sulukule is a representative case in the Turkish context, especially when the urban and metropolitan transformation of Istanbul is taken into account. The way neighborhoods transform and serve the interests of the market and the capital is similar to the historical functioning of capitalism. Thus, the globalization of gentrification arguments made in the literature should not surprise us given that it is a neoliberal strategy to extract value whenever and wherever possible, in the form of gentrification aiming to revalorize usually decayed spaces or slum areas. In general, what we gather from the literature on gentrification is seen as a quick solution, or in Slater's terms as a savior for cities, its content has been depoliticized, and proposed as a key strategy to approach complex urban problems. They are complex because they are creating both winners and losers, and the irony is that nobody is really keeping track of what is happening to communities who are dislocated because of disruptions through investment in their area. While gentrifiers are shown as the primary actor of this process, the “gentrified†(both the community and the physical space) constitute the other half.