نتایج جستجو برای: anniversary

تعداد نتایج: 8397  

2009
Jin H. An N. Wyn Evans

It is shown that, if the tracer population is supported by a spherical dark halo with a core or a cusp diverging more slowly than that of a singular isothermal sphere, the logarithmic cusp slope γ of the tracers must be given exactly by γ = 2β where β is their velocity anisotropy parameter at the center unless the same tracers are dynamically cold at the center. If the halo cusp diverges faster...

2017
Abolfazl Rahimizadeh Walter L. Williamson Shaghayegh Rahimizadeh Housain F. Soufiani

1Department of Spinal Surgery, Pars Advanced and Minimally Invasive Manners Research Center (PAMIM), Pars Hospital, Tehran, Iran 2Adventist Hinsdale Hospital,120 N Oak St, Hinsdale, IL 60521, USA *Corresponding author Abolfazl Rahimizadeh, MD Department of Spinal Surgery Pars Advanced and Minimally Invasive Manners Research Center (PAMIM) Pars Hospital, Tehran, Iran Tel. + 98 912 322 61 49 E-ma...

2011
J. A. Tostevin J. S. Al - Khalili J. M. Brooke J. A. Christley

Abstract Theories of reactions of composite nuclei simplify considerably at energies of several 100 MeV/nucleon. Here Glauber methods provide a quantitative microscopic framework with a clear delineation of nucleon-nucleon scattering and nuclear structure inputs. However further approximations, tested for stable nuclei, are inappropriate for few-body halo nuclei with implications for analyses o...

2009
Tsz Yan Lam Ravi K. Sheth Vincent Desjacques

We generalize Doroshkevich’s celebrated formulae for the eigenvalues of the initial shear field associated with Gaussian statistics to the local non-Gaussian fnl model. This is possible because, to at least second order in fnl, distributions at fixed overdensity are unchanged from the case fnl = 0. We use this generalization to estimate the effect of fnl 6= 0 on the abundance of virialized halo...

2014
Emil Ryberg Christian Forssén H.-W. Hammer

Emil Ryberg,1 Christian Forssén,1 H.-W. Hammer,2,3,4 and Lucas Platter1,5,* 1Department of Fundamental Physics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden 2Helmholtz-Institut für Strahlenund Kernphysik, Universität Bonn, 53115, Bonn, Germany 3Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany 4ExtreMe Matter Institute (EMMI), GSI Helmholtzzent...

2010
Ben Rolfe Christian Martyn Jones Helen Wallace

Drama in games is created by the interplay of the narrative structure of story and the ludic structure of challenges. In this paper, we combine Csikszentmihalyi’s model of engagement and flow with Freytag’s pyramid, a model of narrative structure. Using this combination, we explore the dramatic structure of Halo: Combat Evolved, comparing ludic and narrative structures at each stage of the game...

2003
Y. Yao S. Nan Zhang X. L. Zhang Y. X. Feng

The excellent angular resolution, good energy resolution and broad energy band make Chandra ACIS the best instrument for studying the X-ray halos around some galactic X-ray point sources caused by the dust scattering of X-rays in the interstellar medium, but the direct images of bright sources obtained with ACIS usually suffer from severe pileup. Making use of the fact that an isotropic image c...

2003
Ken Freeman Joel R. Primack J. R. Primack

This is a summary of the discussion in Panel I of IAU Symposium 220 on Dark Matter in Galaxies. The panel topics and panellists were as follows – Cusps Theory: Julio Navarro; Cusps Observations: Erwin de Blok, Rob Swaters; Substructure Observations: Mario Mateo; Substructure Theory: James Taylor, Shude Mao. In addition to the talks by the panellists and the discussion among them, there was a go...

2008
T. T. S. Kuo F. Krmpotić Y. Tzeng

We present a microscopic study of halo nuclei, starting from the Paris and Bonn potentials and employing a two-frequency shell model approach. It is found that the core-polarization effect is dramatically suppressed in such nu-clei. Consequently the effective interaction for halo nucleons is almost entirely given by the bare G-matrix alone, which presently can be evaluated with a high degree of...

2007
Alnawaz Rehemtulla

This issue marks the 10th year anniversary of Neoplasia where we have seen exciting growth on the impact that Neoplasia has had on cancer research worldwide. Neoplasia was founded in 1999 at which time manuscripts were accepted through e-mail. In 2000, Neoplasia became the first journal to offer web-based online manuscript submission and peer-review using a customdesigned application JournalSof...

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