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Jun 15, 2012
06/12

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Wisconsin Historical Society

A collection of websites created by or related to the subjects of Wisconsin manuscript collections held by the Wisconsin Historical Society's Library-Archives and other websites about other subjects of interest to Wisconsin.

21,600
22K

Nov 14, 2013
11/13

by
David Lippman;Jeff Eldridge;Mike Kenyon;Lawrence Morales;Melonie Rasmussen

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Topics: Maths, Mathematics

Source: http://www.flooved.com/reader/3501

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Jul 20, 2013
07/13

by
Ankur Sinha; Pekka Malo; Timo Kuosmanen

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Variable selection is recognized as one of the most critical steps in statistical modeling. The problems encountered in engineering and social sciences are commonly characterized by over-abundance of explanatory variables, non-linearities and unknown interdependencies between the regressors. An added difficulty is that the analysts may have little or no prior knowledge on the relative importance of the variables. To provide a robust method for model selection, this paper introduces a technique...

Source: http://arxiv.org/abs/1203.6276v2

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2.6K

Nov 14, 2013
11/13

by
William F. Trench

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The book is designed to �ll the gaps left in the development of calculus as it is usually presented in an elementary course, and to provide the background required for insight into more advanced courses in pure and applied mathematics.

Topics: Real Numbers, Analysis, Mathematics

Source: http://www.flooved.com/reader/3549

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Jan 27, 2015
01/15

by
Tedeschi Trucks Band

etree

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Band: Tedeschi Trucks Band Date: Feb 7th 2012 Venue: Mielparque Hall, Osaka, Japan Taped by Tom&Jerry Remastered by Naniwa Hot Brothers The Recording Notes: Recorded from relatively close to the stage but way off the center block with Schoeps MK4>Nbox>Sony M-10(Rec Level 4 / 24bit & 96kHz) Transfering Notes: From M-10 to PC with Audio Gate ver.2.2.1 Remastering Memo: Used Sound Forge.Ver 10 with the following commands and plug-in in the following order; (1) The Insert Marker...

Source: Schoeps MK4>Nbox>Sony M-10(Rec Level 4 / 24bit & 96kHz)

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Jul 20, 2013
07/13

by
Ivan Nourdin

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In a seminal paper of 2005, Nualart and Peccati discovered a surprising central limit theorem (called the "Fourth Moment Theorem" in the sequel) for sequences of multiple stochastic integrals of a fixed order: in this context, convergence in distribution to the standard normal law is equivalent to convergence of just the fourth moment. Shortly afterwards, Peccati and Tudor gave a multidimensional version of this characterization. Since the publication of these two beautiful papers,...

Source: http://arxiv.org/abs/1203.4147v3

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Jul 20, 2013
07/13

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Zbigniew Koza; Maciej Matyka; Sebastian Szkoda; Łukasz Mirosław

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A new format for storing sparse matrices is proposed for efficient sparse matrix-vector (SpMV) product calculation on modern throughput-oriented computer architectures. This format extends the standard compressed row storage (CRS) format and is easily convertible to and from it without any memory overhead. Computational performance of an SpMV kernel for the new format is determined for over 140 sparse matrices on two Fermi-class graphics processing units (GPUs) and the efficiency of the kernel,...

Source: http://arxiv.org/abs/1203.2946v1

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Nov 14, 2013
11/13

by
Barbara Illowsky;Susan Dean

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The textbook was developed over several years and has been used in regular and honors-level classroom settings and in distance learning classes. This textbook is intended for introductory statistics courses being taken by students at two� and four�year colleges who are majoring in fields other than math or engineering. Intermediate algebra is the only prerequisite. The book focuses on applications of statistical knowledge rather than the theory behind it.

Topics: Maths, Mathematics

Source: http://www.flooved.com/reader/3483

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1.2K

Nov 14, 2013
11/13

by
Prof. Joseph Fields

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f(x). However, many of the functions of importance both within mathematics itself as

Topics: Maths, Mathematics

Source: http://www.flooved.com/reader/3477

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576

Nov 14, 2013
11/13

by
G.'t Hooft;S. Vandoren

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Prologue General relativity is a beautiful scheme for describing the gravitational �eld and the equations it obeys. Nowadays this theory is often used as a prototype for other, more intricate constructions to describe forces between elementary particles or other branches of fundamental physics. This is why in an introduction to general relativity it is of importance to separate as clearly as possible the various ingredients that together give shape to this paradigm. After explaining the...

Topic: Maths

Source: http://www.flooved.com/reader/2932

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969

Nov 14, 2013
11/13

by
Peter M. Neumann

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These notes are intended as a rough guide to the eight-lecture course Introduction to Pure Mathematics which is a part of the Oxford 1st-year undergraduate course for the Preliminary Examination in Mathematics. Please do not expect a polished account. They are my personal lecture notes, not a carefully checked textbook. Nevertheless, I hope they may be of some help.

Topic: Maths

Source: http://www.flooved.com/reader/1056

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Jul 20, 2013
07/13

by
Yu Guo; Jinchuan Hou

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Quantum correlation is a key to our understanding of quantum physics. In particular, it is essential for the powerful applications to quantum information and quantum computation. There exist quantum correlations beyond entanglement, such as quantum discord (QD) and measurement-induced nonlocality (MiN) [Phys. Rev. Lett. \textbf{106}, 120401(2011)]. In [Phys. Rev. A \textbf{77}, 022113(2008)], a subclass of PPT states so-called strong positive partial transposition (SPPT) states was introduced...

Source: http://arxiv.org/abs/1107.0355v3

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391

Jul 20, 2013
07/13

by
Benoit Carry

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A considerable amount of information regarding the processes that occurred during the accretion of the early planetesimals is still present among the small bodies of our solar system. A review of our current knowledge of the density of small bodies is presented here. Intrinsic physical properties of small bodies are sought by searching for relationships between the dynamical and taxonomic classes, size, and density. Mass and volume estimates for 287 small bodies are collected from the...

Source: http://arxiv.org/abs/1203.4336v1

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734878357/

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Nov 14, 2013
11/13

by
Peter Ouwehand

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These notes are for a short course in set theory at the undergraduate level at Stellenbosch University. No pretense at orignality is claimed. Though ampli�ed by material from a number of additional sources, the debt to the �rst few chapters of the book Set Theory, by Thomas Jech, Springer 2003, should be easily discernible.

Topics: Maths, Logic, Numbers and Set Theory, Set Theory, Mathematics

Source: http://www.flooved.com/reader/3368

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734887265/

Topics: Iran, Bowls, Metropolitan Museum of Art, Asia, Ceramic, paint, ca. 5500 B.C., Vessels, Ceramics

Lost Landscapes of San Francisco 6 (2011) is the latest in a series of historical urban explorations, made from home movies, industrial and promotional films and outtakes, and other cinematic ephemera. It sold out the Castro Theatre in December, and this will be its second screening. YOU are the soundtrack. Please come prepared to shout out your identifications, ask questions about what’s on the screen, and share your thoughts with fellow audience members. Most of the footage in this program...

favoritefavoritefavoritefavoritefavorite ( 1 reviews )

Topics: Rick Prelinger, San Francisco, Internet Archive, Brewster Kahle, Archival movies

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Jul 20, 2013
07/13

by
Olivier Sarbach; Manuel Tiglio

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Many evolution problems in physics are described by partial differential equations on an infinite domain; therefore, one is interested in the solutions to such problems for a given initial dataset. A prominent example is the binary black hole problem within Einstein's theory of gravitation, in which one computes the gravitational radiation emitted from the inspiral of the two black holes, merger and ringdown. Powerful mathematical tools can be used to establish qualitative statements about the...

Source: http://arxiv.org/abs/1203.6443v1

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Jul 20, 2013
07/13

by
Huirong Yan; A. Lazarian

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Observational studies of magnetic fields are vital as magnetic fields play a crucial role in various astrophysical processes, including star formation, accretion of matter, transport processes (e.g., transport of heat), and cosmic rays. We identified a process "ground state alignment" as a new way to determine the magnetic field direction in diffuse medium. The alignment is due to anisotropic radiation impinging on the atom/ion, while the magnetic field induces precession and realign...

Source: http://arxiv.org/abs/1203.5571v3

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734886145/

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335

Jul 27, 2012
07/12

by
Sanusi, Abidemi

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The story of an illiterate ten-year-old girl, Eyo, trafficked to the United Kingdom by her father with promises of work, an education, and fortune. It was shortlisted for the Commonwealth Writers' Prize in 2010.

Topics: 2010, abidemi, africa, commonwealth, lolita

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Jul 20, 2013
07/13

by
Jesus Martinez-Garcia

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The log canonical threshold for all smooth complex del Pezzo surfaces was computed by Cheltsov. His proof used connectivity of the non-klt locus and adjunction-type results, relying on vanishing theorems not known to be true in characteristic p. We compute the log canonical threshold of nonsingular del Pezzos over an algebraically closed field. We give an algebraic proof of this adjunction-type for surfaces and avoid the connectivity result by classifying curves of small degree. As an...

Source: http://arxiv.org/abs/1203.0995v2

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539

Nov 14, 2013
11/13

by
Peter Ouwehand

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Topic: Maths

Source: http://www.flooved.com/reader/3386

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425

Nov 14, 2013
11/13

by
Prof. P.D. Magnus

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forall x is an open access introductory textbook in formal logic. It covers translation, proofs, and formal semantics for sentential and predicate logic.

Topics: Maths, Mathematics

Source: http://www.flooved.com/reader/3495

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734876505/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734905051/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734860771/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734902027/

One in a series of podcasts from Shrink Rap Radio, All the psychology you need to know and just enough to make you dangerous"

Topics: psychology, psychotherapy, counseling, counselor, therapist, psychotherapist, intuition, dreams,...

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154

Jul 20, 2013
07/13

by
Roman V. Shcherbakov; Robert F. Penna; Jonathan C. McKinney

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We obtain estimates of Sgr A* accretion flow and black hole parameters by fitting polarized sub-mm observations with spectra computed using three-dimensional (3D) general relativistic (GR) magnetohydrodynamical (MHD) (GRMHD) simulations. Observations are compiled from averages over many epochs from reports in 29 papers for estimating the mean fluxes Fnu, linear polarization (LP) fractions, circular polarization (CP) fractions, and electric vector position angles (EVPAs). GRMHD simulations are...

Source: http://arxiv.org/abs/1007.4832v5

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202

Jul 20, 2013
07/13

by
Rodrigo de Abreu; Vasco Guerra

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A simple and effective approach to thermodynamics is suggested, which solves the major difficulties in the traditional presentation of the subject. The internal energy is introduced from the behavior of deformable bodies, whereas the importance of keeping in mind the microscopic picture is emphasized. A straightforward model is used to show that the internal energy depends on the volume and entropy, from where the relationship between mechanics and thermodynamics is immediate, mechanics...

Source: http://arxiv.org/abs/1203.2294v1

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114

Jul 20, 2013
07/13

by
Ivan Donkin; Jan M. Pawlowski

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We evaluate the phase diagram of quantum gravity within a fully diffeomorphism-invariant renormalisation group approach. The construction is based on the geometrical or Vilkovisky-DeWitt effective action. We also resolve the difference between the fluctuation metric and the background metric. This allows for fully background-independent flows in gravity. The results provide further evidence for the ultraviolet fixed point scenario in quantum gravity with quantitative changes for the fixed point...

Source: http://arxiv.org/abs/1203.4207v1

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Jul 20, 2013
07/13

by
J. R. Rizzo; A. Pedreira; M. Gutiérrez; I. Sotuela; J. R. Larrañaga; L. Ojalvo; M. Franco; J. Cernicharo; C. García Miró; J. M. Castro Cerón; T. B. H. Kuiper; M. Vázquez; J. Calvo; A. Baquero

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The antennas of NASA's Madrid Deep Space Communications Complex (MDSCC) in Robledo de Chavela are available as single-dish radio astronomical facilities during a significant percentage of their operational time. Current instrumentation includes two antennas of 70 and 34 m in diameter, equipped with dual-polarization receivers in K (18 - 26 GHz) and Q (38 - 50 GHz) bands, respectively. We have developed and built a new wideband backend for the Robledo antennas, with the objectives (1) to...

Source: http://arxiv.org/abs/1203.4622v1

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117

Jul 20, 2013
07/13

by
Pere Masjuan; Enrique Ruiz Arriola; Wojciech Broniowski

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We reanalyze the radial (n) and angular-momentum (J) Regge trajectories for all light-quark states with baryon number zero listed in the 2011 edition of the Particle Data Tables. The parameters of the trajectories are obtained with linear regression, with weight of each resonance inversely proportional to its half-width squared, $(\Gamma/2)^2$. That way we are side-stepping possible channel-dependent and model-dependent extractions of the resonance parameters and are able to undertake an error...

Source: http://arxiv.org/abs/1203.4782v1

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Jul 20, 2013
07/13

by
Koji Hashimoto; Norihiro Iizuka

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Robustness of the Luttinger theorem for fermionic liquids is examined in holography. The statement of the Luttinger theorem, the equality between the fermion charge density and the volume enclosed by the Fermi surface, can be mapped to a Gauss's law in the gravity dual, a la Sachdev. We show that various deformations in the gravity dual, such as inclusion of magnetic fields, a parity-violating theta-term, dilatonic deformations, and higher-derivative corrections, do not violate the holographic...

Source: http://arxiv.org/abs/1203.5388v2

Internet Archive meeting to consider TV news research service experiment May 25, 2012 Internet Archive, 300 Funston Ave. San Francisco, CA 94118 Schedule 8:00 a.m. continental breakfast 9:00 a.m. welcoming remarks and tour of Internet Archive 10:00 a.m. participant 5-minute presentations of compelling uses cases 12:30 p.m. lunch 1:30 p.m. remaining presentations consideration of value propositions and compelling use cases 2:30 p.m. topic-specific break-out groups discussions 3:30 p.m....

Topics: television news, newscast, research, Internet Archive, Brewster Kahle, Roger Macdonald, Alexis...

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74

Jul 20, 2013
07/13

by
I. V. Fialkovsky; D. V. Vassilevich

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We study magneto--optical properties of monolayer graphene by means of quantum field theory methods in the framework of the Dirac model. We reveal a good agreement between the Dirac model and a recent experiment on giant Faraday rotation in cyclotron resonance. We also predict other regimes when the effects are well pronounced. The general dependence of the Faraday rotation and absorption on various parameters of samples is revealed both for suspended and epitaxial graphene.

Source: http://arxiv.org/abs/1203.4603v4

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279

Jul 20, 2013
07/13

by
C. Titus Brown; Adina Howe; Qingpeng Zhang; Alexis B. Pyrkosz; Timothy H. Brom

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Deep shotgun sequencing and analysis of genomes, transcriptomes, amplified single-cell genomes, and metagenomes has enabled investigation of a wide range of organisms and ecosystems. However, sampling variation in short-read data sets and high sequencing error rates of modern sequencers present many new computational challenges in data interpretation. These challenges have led to the development of new classes of mapping tools and {\em de novo} assemblers. These algorithms are challenged by the...

Source: http://arxiv.org/abs/1203.4802v2

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85

Jul 20, 2013
07/13

by
Sarah Kendrew; Robert J. Simpson; Eli Bressert; Matthew S. Povich; Reid Sherman; Chris Lintott; Thomas P. Robitaille; Kevin Schawinski; Grace Wolf-Chase

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The Milky Way Project citizen science initiative recently increased the number of known infrared bubbles in the inner Galactic plane by an order of magnitude compared to previous studies. We present a detailed statistical analysis of this dataset with the Red MSX Source catalog of massive young stellar sources to investigate the association of these bubbles with massive star formation. We particularly address the question of massive triggered star formation near infrared bubbles. We find a...

Source: http://arxiv.org/abs/1203.5486v2

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153

Jul 20, 2013
07/13

by
Karthik H. Shankar; Anand Balaraman; Kameshwar C. Wali

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We consider a theory of gravity with a hidden extra-dimension and metric-dependent torsion. A set of physically motivated constraints are imposed on the geometry so that the torsion stays confined to the extra-dimension and the extra-dimension stays hidden at the level of four dimensional geodesic motion. At the kinematic level, the theory maps on to General Relativity, but the dynamical field equations that follow from the action principle deviate markedly from the standard Einstein equations....

Source: http://arxiv.org/abs/1203.5552v2

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Jul 20, 2013
07/13

by
R. Sahai; M. R. Morris; M. W. Werner; R. Güsten; H. Wiesemeyer; G. Sandell

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We have obtained new velocity-resolved spectra of the [CII] 158 micron line towards the Ring Nebula in Lyra (NGC 6720), one of the best-studied planetary nebulae, in order to probe its controversial 3-dimensional structure and to estimate the mass of circumstellar material in this object. We used the Terahertz receiver GREAT aboard the SOFIA airborne telescope to obtain the [CII] spectra at eight locations within and outside the bright optical ring of NGC 6720. Emission was detected at all...

Source: http://arxiv.org/abs/1203.6373v1

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Jul 22, 2013
07/13

by
Yong Zeng; Walter Hoyer; Jinjie Liu; Stephan W. Koch; Jerome V. Moloney

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Strong second-harmonic generation has recently been experimentally observed from metamaterials consisting of periodic arrays of metal split ring resonators with an effective negative magnetic permeability [Science, 313, 502 (2006)]. To explore the underlying physical mechanism, a classical model derived from microscopic theory is employed here. The quasi-free electrons inside the metal are approximated as a classical Coulomb-interacting electron gas, and their motion under the excitation of an...

Source: http://arxiv.org/abs/0807.3531v2

Topics: sopa, pipa, stopsopa, nytm, ows, occupywallst, newyorkcity, nyc, newyork, tech, schumer, gillibrand

Source: http://www.flickr.com/photos/jewschool/6722382609/

The unwashed masses. AKA NYC's tech industry and user community.

Topics: sopa, pipa, stopsopa, nytm, ows, occupywallst, newyorkcity, nyc, newyork, tech, schumer, gillibrand

Source: http://www.flickr.com/photos/jewschool/6722334449/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734893521/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734890275/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734903617/

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Jul 20, 2013
07/13

by
Sergio Conti; Georg Dolzmann; Stefan Müller

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Geometric rigidity states that a gradient field which is $L^p$-close to the set of proper rotations is necessarily $L^p$-close to a fixed rotation, and is one key estimate in nonlinear elasticity. In several applications, as for example in the theory of plasticity, energy densities with mixed growth appear. We show here that geometric rigidity holds also in $L^p+L^q$ and in $L^{p,q}$ interpolation spaces. As a first step we prove the corresponding linear inequality, which generalizes Korn's...

Source: http://arxiv.org/abs/1203.1138v1

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Jul 20, 2013
07/13

by
Guillaume Bal; Gunther Uhlmann

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This letter announces and summarizes results obtained in arXiv:1111.5051 and considers several natural extensions. The aforementioned paper proposes a procedure to reconstruct coefficients in a second-order, scalar, elliptic equation from knowledge of a sufficiently large number of its solutions. We present this derivation and extend it to show which parameters may or may not be reconstructed for several hybrid (also called coupled physics) imaging modalities including photo-acoustic...

Source: http://arxiv.org/abs/1203.1210v1

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93

Jul 20, 2013
07/13

by
T. A. Movsessian; T. Yu. Magakian; A. V. Moiseev

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Knotty structures of Herbig-Haro jets are common phenomena, and knowing the origin of these structures is essential for understanding the processes of jet formation. Basically, there are two theoretical approaches: different types of instabilities in stationary flow, and velocity variations in the flow. We investigate the structures with different radial velocities in the knots of the HL Tau jet as well as its unusual behaviour starting from 20 arcsec from the source. Collation of radial...

Source: http://arxiv.org/abs/1203.4074v2

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734909105/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734925603/

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Jul 20, 2013
07/13

by
Richard Eager; Sebastian Franco; Kevin Schaeffer

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We explore various aspects of the correspondence between dimer models and integrable systems recently introduced by Goncharov and Kenyon. Dimer models give rise to relativistic integrable systems that match those arising from 5d N=1 gauge theories studied by Nekrasov. We apply the correspondence to dimer models associated to the Y^{p,0} geometries, showing that they give rise to the relativistic generalization of the periodic Toda chain originally studied by Ruijsenaars. The correspondence...

Source: http://arxiv.org/abs/1107.1244v2

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206

Jul 20, 2013
07/13

by
Anton Geraschenko; Matthew Satriano

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The purpose of this paper and its sequel (Toric Stacks II) is to introduce and develop a theory of toric stacks which encompasses and extends the notions of toric stacks defined in [Laf02, BCS05, FMN10, Iwa09, Sat12, Tyo12], as well as classical toric varieties. In this paper, we define a \emph{toric stack} as a quotient of a toric variety by a subgroup of its torus (we also define a generically stacky version). Any toric stack arises from a combinatorial gadget called a \emph{stacky fan}. We...

Source: http://arxiv.org/abs/1107.1906v3

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91

Jul 20, 2013
07/13

by
Igor Nikolaev

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The real multiplication conjecture of Yu. I. Manin says that abelian extensions of the real quadratic number fields come from the so-called pseudo-lattices with real multiplication; the conjecture is based on an observation that for the imaginary quadratic fields such extensions are obtained from the lattices with complex multiplication. In this paper we prove Manin's conjecture using theory of the Hecke eigenforms (of weight two) and associated measured foliations on the modular surfaces.

Source: http://arxiv.org/abs/0804.0057v6

Personal Digital Archiving 2012 Held at The Internet Archive, San Francisco. Thursday February 23 • 9:00-9:15. Welcome and Introduction • 9:15-10:00. Keynotes. The Internet Archive and Personal Archives. Brewster Kahle The Library of Congress: Personal Digital Archive Advice for the General Public. Mike Ashenfelder, Library of Congress • 10:30-11:30 Cases and Examples How my Family Archives Affected Others. Stan James. Unstable Archives: Performing the Franko B Archive. Jo An...

Topics: mike ashenfelder, stan james, jerry michalski, jo ana morfin, peter chan, marc a. smith, megan a....

I was so excited to finally run into the protestors!!!

Topics: 20120103, January, 2012, NYC, Winter, Grand, Central, Terminal, GCT, Manhattan, Commuting, Protest,...

Source: http://www.flickr.com/photos/bitchcakes/6632024971/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734859269/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734931015/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734868791/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734911765/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734916909/

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89

Jul 20, 2013
07/13

by
Carmelo Evoli; Daniele Gaggero; Dario Grasso; Luca Maccione

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Multichannel Cosmic Ray (CR) spectra and the large scale CR anisotropy can hardly be made compatible in the framework of conventional isotropic and homogeneous propagation models. These models also have problems explaining the longitude distribution and the radial emissivity gradient of the $\gamma$-ray galactic interstellar emission. We argue here that accounting for a well physically motivated correlation between the CR escape time and the spatially dependent magnetic turbulence power can...

Source: http://arxiv.org/abs/1203.0570v2

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123

Jul 19, 2013
07/13

by
Peter Müller; Christoph Richard

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We provide a framework for studying randomly coloured point sets in a locally compact, second-countable space on which a metrisable unimodular group acts continuously and properly. We first construct and describe an appropriate dynamical system for uniformly discrete uncoloured point sets. For point sets of finite local complexity, we characterise ergodicity geometrically in terms of pattern frequencies. The general framework allows to incorporate a random colouring of the point sets. We derive...

Source: http://arxiv.org/abs/1005.4884v4

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Jul 20, 2013
07/13

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F. Massaro; R. D'Abrusco; G. Tosti; M. Ajello; D. Gasparrini; J. E. Grindlay; Howard A. Smith

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Despite the large number of discoveries made recently by Fermi, the origins of the so called unidentified gamma-ray sources remain unknown. The large number of these sources suggests that among them there could be a population that significantly contributes to the isotropic gamma-ray background and is therefore crucial to understand their nature. The first step toward a complete comprehension of the unidentified gamma-ray source population is to identify those that can be associated with...

Source: http://arxiv.org/abs/1203.1330v1

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Jul 20, 2013
07/13

by
Kirtiman Ghosh; Katri Huitu

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We discuss the collider phenomenology of Universal Extra Dimension models with gravity mediated decays. We concentrate on diphoton associated with large missing transverse energy signature. At the collider, level-1 Kaluza-Klein (KK) particles are produced in pairs due to the conservation of KK-parity. Subsequently, KK-particles decay via cascades involving lighter KK-particles until reaching the lightest KK-particle (LKP). Finally, gravity induced decay of the LKP into photons gives rise to the...

Source: http://arxiv.org/abs/1203.1551v1

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Jul 20, 2013
07/13

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Sunil Kumar Biswas; Goutam Sau; Amar Chandra Das Ghosh; Subrata Bhattacharyya

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Studies on `strange' particle production have always occupied a very important space in the domain of Particle Physics. This was and is so, just because of some conjectures about specially abundant or excess production of `strange' particles, at certain stages and under certain conditions arising out of what goes by the name of `Standard' model in Particle Physics. With the help of Hagedornian power laws we have attempted to understand and interpret here the nature of the $p_T$-spectra for the...

Source: http://arxiv.org/abs/1203.2781v1

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Jul 20, 2013
07/13

by
Matthew Ballard; David Favero; Ludmil Katzarkov

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We study the relationship between derived categories of factorizations on gauged Landau-Ginzburg models related by variations of the linearization in Geometric Invariant Theory. Under assumptions on the variation, we show the derived categories are comparable by semi-orthogonal decompositions and describe the complementary components. We also verify a question posed by Kawamata: we show that $D$-equivalence and $K$-equivalence coincide for such variations. The results are applied to obtain a...

Source: http://arxiv.org/abs/1203.6643v3

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Jul 20, 2013
07/13

by
Wolfgang Lueck; David Rosenthal

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We investigate the algebraic K- and L-theory of the group ring RG, where G is a hyperbolic or virtually finitely generated abelian group and R is an associative ring with unit.

Source: http://arxiv.org/abs/1007.0845v3

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Jul 20, 2013
07/13

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Pierre-Emmanuel Caprace; Nicolas Monod

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Consider a proper cocompact CAT(0) space X. We give a complete algebraic characterisation of amenable groups of isometries of X. For amenable discrete subgroups, an even narrower description is derived, implying Q-linearity in the torsion-free case. We establish Levi decompositions for stabilisers of points at infinity of X, generalising the case of linear algebraic groups to Is(X). A geometric counterpart of this sheds light on the refined bordification of X (\`a la Karpelevich) and leads to a...

Source: http://arxiv.org/abs/1203.1058v1

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Jul 20, 2013
07/13

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Negar Kiyavash; Amir Houmansadr; Nikita Borisov

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In this paper, we analyze several recent schemes for watermarking network flows that are based on splitting the flow into timing intervals. We show that this approach creates time-dependent correlations that enable an attack that combines multiple watermarked flows. Such an attack can easily be mounted in nearly all applications of network flow watermarking, both in anonymous communication and stepping stone detection. The attack can be used to detect the presence of a watermark, recover the...

Source: http://arxiv.org/abs/1203.1390v2

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Jul 20, 2013
07/13

by
Andrea Masiero; Angelo Cenedese

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Marker-based motion capture (MoCap) systems can be composed by several dozens of cameras with the purpose of reconstructing the trajectories of hundreds of targets. With a large amount of cameras it becomes interesting to determine the optimal reconstruction strategy. For such aim it is of fundamental importance to understand the information provided by different camera measurements and how they are combined, i.e. how the reconstruction error changes by considering different cameras. In this...

Source: http://arxiv.org/abs/1203.3230v1

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Jul 20, 2013
07/13

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Ricardo Fabbri; Odemir Martinez Bruno; Luciano da Fontoura Costa

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This paper is an overview of Image Processing and Analysis using Scilab, a free prototyping environment for numerical calculations similar to Matlab. We demonstrate the capabilities of SIP -- the Scilab Image Processing Toolbox -- which extends Scilab with many functions to read and write images in over 100 major file formats, including PNG, JPEG, BMP, and TIFF. It also provides routines for image filtering, edge detection, blurring, segmentation, shape analysis, and image recognition. Basic...

Source: http://arxiv.org/abs/1203.4009v1

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Jul 20, 2013
07/13

by
Andrew E. Dolphin

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In most star formation history (SFH) measurements, the reported uncertainties are those due to effects whose sizes can be readily measured: Poisson noise, adopted distance and extinction, and binning choices in the solution itself. However, the largest source of error, systematics in the adopted isochrones, is usually ignored and very rarely explicitly incorporated into the uncertainties. I propose a process by which estimates of the uncertainties due to evolutionary models can be incorporated...

Source: http://arxiv.org/abs/1203.4634v1

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Jul 20, 2013
07/13

by
Lixian Yu; Shiqun Zhu; Qifeng Liang; Gang Chen; Suotang Jia

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The Rabi model that describes the fundamental interaction between a two-level system with a quantized harmonic oscillator is one of the simplest and most ubiquitous models in modern physics. However, this model has not been solved exactly because it is hard to find a second conserved quantity besides the energy. Here we present a unitary transformation to map this unsolvable Rabi model into a solvable Jaynes-Cummings-like model by choosing a proper variation parameter. As a result, the...

Source: http://arxiv.org/abs/1203.5408v2

I was so excited to finally run into the protestors!!!

Topics: 20120103, January, 2012, NYC, Winter, Grand, Central, Terminal, GCT, Manhattan, Commuting, Protest,...

Source: http://www.flickr.com/photos/bitchcakes/6632016397/

I was so excited to finally run into the protestors!!!

Topics: 20120103, January, 2012, NYC, Winter, Grand, Central, Terminal, GCT, Manhattan, Commuting, Protest,...

Source: http://www.flickr.com/photos/bitchcakes/6632020621/

Topics: sopa, pipa, stopsopa, nytm, ows, occupywallst, newyorkcity, nyc, newyork, tech, schumer, gillibrand

Source: http://www.flickr.com/photos/jewschool/6722412783/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734907867/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734898779/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734912853/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734915119/

One in a series of podcasts from Shrink Rap Radio, All the psychology you need to know and just enough to make you dangerous"

Topics: psychology, psychotherapy, counseling, counselor, therapist, psychotherapist, intuition, dreams,...

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69

Jul 20, 2013
07/13

by
S. P. Weppner; Ch. Elster

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Elastic scattering observables (differential cross section and analyzing power) are calculated for the reaction $^6$He(p,p)$^6$He at projectile energies starting at 71 MeV/nucleon. The optical potential needed to describe the reaction is derived describing $^6$He in terms of a $^4$He-core and two neutrons. The Watson first order multiple scattering ansatz is extended to accommodate the internal dynamics of a composite cluster model for the $^6$He nucleus scattering from a nucleon projectile....

Source: http://arxiv.org/abs/1107.1816v2

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Jul 20, 2013
07/13

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Kazunori Nakayama; Fuminobu Takahashi

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We show that heavy supersymmetric particles around O(100) TeV to O(1) PeV naturally appear in new inflation in which the Higgs boson responsible for the breaking of U(1)B-L plays the role of inflaton. Most important, the supersymmetric breaking scale is bounded above by the inflationary dynamics, in order to suppress the Coleman-Weinberg potential which would otherwise spoil the slow-roll inflation. Our scenario has rich phenomenological and cosmological implications: the Higgs boson mass at...

Source: http://arxiv.org/abs/1203.0323v2

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Jul 20, 2013
07/13

by
Sourav Chatterjee; Jonathan C. Tan

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The Orion Nebula Cluster (ONC) is the nearest region of massive star formation and thus a crucial testing ground for theoretical models. Of particular interest amongst the ONC's ~1000 members are: \theta^1 Ori C, the most massive binary in the cluster with stars of masses 38 and 9 MSun (Kraus et al. 2009); the Becklin-Neugebauer (BN) object, a 30 km/s runaway star of ~8 MSun (Tan 2004); and the Kleinmann-Low (KL) nebula protostar, a highly-obscured, ~15 MSun object still accreting gas while...

Source: http://arxiv.org/abs/1203.0325v4

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Jul 20, 2013
07/13

by
D. J. Frew; Q. A. Parker

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Our understanding of planetary nebulae has been significantly enhanced as a result of several recent large surveys (Parker et al., these proceedings). These new discoveries suggest that the `PN phenomenon' is in fact more heterogeneous than previously envisaged. Even after the careful elimination of mimics from Galactic PN catalogues, there remains a surprising diversity in the population of PNe and especially their central stars. Indeed, several evolutionary scenarios are implicated in the...

Source: http://arxiv.org/abs/1203.1388v1

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Jul 20, 2013
07/13

by
JunYan Luo; Lun-Wu Zhu; Xiao-Ling He; Bensheng Yun; Shiping Ruan

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Continuous measurement of a quantum two-level system (qubit) by mesoscopic charge detectors has attracted wide attention in the community of solid-state quantum computation. In this work, we revisit the measurement of a charge qubit by a quantum point contact, with particular attention paid to the unique non-Markovian measurement characteristics. The finite-frequency-support feature due to non-Markovian correlation leads to a remarkable suppression of the pedestal in noise spectrum, which...

Source: http://arxiv.org/abs/1203.2233v1

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Jul 20, 2013
07/13

by
Bogdan Malaescu; Pavel Starovoitov

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We perform a determination of the strong coupling constant using the latest ATLAS inclusive jet cross section data, from proton-proton collisions at sqrt{s}=7 TeV, and their full information on the bin-to-bin correlations. Several procedures for combining the statistical information from the different data inputs are studied and compared. The theoretical prediction is obtained using NLO QCD, and it also includes non-perturbative corrections. Our determination uses inputs with transverse momenta...

Source: http://arxiv.org/abs/1203.5416v2

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Jul 20, 2013
07/13

by
L. De Leo; V. Vargas; S. Ciliberti; J. -P. Bouchaud

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We derive a new, exact and transparent expansion for option smiles, which lends itself both to analytical approximation and, perhaps more importantly, to congenial numerical treatments. We show that the skew and the curvature of the smile can be computed as exotic options, for which the Hedged Monte Carlo method is particularly well suited. When applied to options on the S&P index, we find that the skew and the curvature of the smile are very poorly reproduced by the standard Edgeworth...

Source: http://arxiv.org/abs/1203.5703v2

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51

Jul 20, 2013
07/13

by
Carles Casacuberta; Javier J. Gutiérrez; Jirí Rosický

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A theorem due to Ohkawa states that the collection of Bousfield equivalence classes of spectra is a set. We extend this result to arbitrary combinatorial model categories.

Source: http://arxiv.org/abs/1203.6395v2

"We shouldn't let people who don't know what we do regulate us."

Topics: sopa, pipa, stopsopa, nytm, ows, occupywallst, newyorkcity, nyc, newyork, tech, schumer, gillibrand

Source: http://www.flickr.com/photos/jewschool/6722364791/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734863083/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734924017/

Topics: owswest, occupy, occupy wall street, j20, ows, occupysf, protest, san francisco

Source: http://www.flickr.com/photos/lilyrhoads/6734891717/

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Jul 20, 2013
07/13

by
Gianfranco Bertone; Daniel Cumberbatch; Roberto Ruiz de Austri; Roberto Trotta

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The unfortunate case where the Large Hadron Collider (LHC) fails to discover physics Beyond the Standard Model (BSM) is sometimes referred to as the "Nightmare scenario" of particle physics. We study the consequences of this hypothetical scenario for Dark Matter (DM), in the framework of the constrained Minimal Supersymmetric Standard Model (cMSSM). We evaluate the surviving regions of the cMSSM parameter space after null searches at the LHC, using several different LHC...

Source: http://arxiv.org/abs/1107.5813v2

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207

Jul 20, 2013
07/13

by
John P. Ralston

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Planck's constant was introduced as a fundamental scale in the early history of quantum mechanics. We find a modern approach where Planck's constant is absent: it is unobservable except as a constant of human convention. Despite long reference to experiment, review shows that Planck's constant cannot be obtained from the data of Ryberg, Davisson and Germer, Compton, or that used by Planck himself. In the new approach Planck's constant is tied to macroscopic conventions of Newtonian origin,...

Source: http://arxiv.org/abs/1203.5557v1

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174

Jul 20, 2013
07/13

by
Pierre Le Doussal; Aleksandra Petkovic; Kay Jörg Wiese

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We study the motion of an elastic object driven in a disordered environment in presence of both dissipation and inertia. We consider random forces with the statistics of random walks and reduce the problem to a single degree of freedom. It is the extension of the mean field ABBM model in presence of an inertial mass m. While the ABBM model can be solved exactly, its extension to inertia exhibits complicated history dependence due to oscillations and backward motion. The characteristic scales...

Source: http://arxiv.org/abs/1203.5620v1

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233

Jul 20, 2013
07/13

by
Karen L. Collins; Ann Trenk

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Nordhaus and Gaddum proved, for any graph G, that the chromatic number of G plus the chromatic number of G complement is less than or equal to the number of vertices in G plus 1. Finck characterized the class of graphs that satisfy equality in this bound. In this paper, we provide a new characterization of this class of graphs, based on vertex degrees, which yields a new polynomial-time recognition algorithm and efficient computation of the chromatic number of graphs in this class. Our...

Source: http://arxiv.org/abs/1203.5765v1