M-theory Lift of Meta-Stable Brane Configuration in Symplectic and Orthogonal Gauge Groups

The M-theory lift for the supersymmetry breaking IIA brane configuration corresponding to the meta-stable state of N=1 unitary supersymmetric Yang-Mills theory with massive flavors was found by Bena et al(hep-th/0608157) recently. We extend this to symplectic and orthogonal gauge groups by analyzing the previously known results on M-theory lifts of supersymmetric IIA brane configurations.Comment: 13pp;two colored figures and corresponding paragraphs, eq. (2.8) and a new paragrpah in page 9 added or improved and to appear in PL

Columbia Glacier bedrock topography and ice thickness

Columbia Glacier bedrock topography and ice volume. Bedrock topography and ice thickness for 1957 and 2007 on a 100 m grid are provided in NetCDF format, referenced to WGS84 UTM Zone 6N. For details about the method and the datasets used, please see: McNabb, R., Hock, R., O’Neel, S., Rasmussen, L., Ahn, Y., Braun, M., . . . Truffer, M. (2012). Using surface velocities to calculate ice thickness and bed topography: A case study at Columbia Glacier, Alaska, USA. Journal of Glaciology, 58(212), 1151-1164. 10.3189/2012JoG11J24

Discrete Torsion and Branes in M-theory from Mathematical Viewpoint

We study orbifold group actions on locally defined fields upon M-theory branes in a three-form C-fields background. We derive some constraints from the consistency of the orbifold group actions. We show the possibility of the existence of M-theory discrete torsion for the fields on the worldvolume and discuss its features.Comment: 14 pages, harvmac, typos corrected and refs. adde

Nostos - Spherical TPCs

A new concept, the spherical TPC, presents unique advantages when low energy neutrinos are to be detected. Some of the applications are: a) observation of the e oscillation when emitted by a tritium source ( = 14 keV) in a 10 m radius sphere. This project, baptized NOSTOS, intends to give the mixing angle 13, the Weinberg angle and a much lower limit (< 10-12 ?B) of the neutrino magnetic moment, b) an array of small (radius 2-4 m), cheap spheres scattered around the world would be perfect to monitor extragalactic supernovae, c) detect the spectrum of low energy (pp - 7Be) solar neutrinos.Comment: XIII International Symposium on Very High Energy Cosmic Ray Interactions at the NESTOR Institute - Pylos, Grece, 6-12 Septembre 200

Book Reviews

Fair Play: The Moral Dilemmas of Spying. By James M. Olson. The Corporate Spy: Industrial Espionage and Counterintelligence inthe Multinational Enterprise with Case Studies (Abridged Version) by Edward M. Roche

Interaction of synchronized dynamics in cortical and subcortical circuits in Parkinson’s disease

poster abstractParkinson’s disease pathophysiology is marked by increased oscillatory and synchronous activity in the beta frequency band in cortical and basal ganglia circuits. This study explores the functional connections between synchronized dynamics of cortical areas and dynamics of subcortical areas in Parkinson’s disease. We simultaneously recorded neuronal units (spikes) and local field potentials (LFP) from subthalamic nucleus (STN), and electroencephalograms (EEGs) from the scalp in parkinsonian patients and analyzed the correlation between the time-courses of the spike-LFP synchronization and inter-electrode EEG synchronization. We found the (noninvasively obtained) time-course of the synchrony strength between EEG electrodes and the (invasively obtained) time-course of the synchrony between spiking unit and LFP in STN to be weakly, but significantly correlated with each other. This correlation is largest for the bilateral motor EEG synchronization followed by bilateral frontal EEG synchronization. Our observations suggest that there may be multiple functional modes by which the cortical and basal ganglia circuits interact with each other in Parkinson’s disease: not only synchronization may be observed between some areas in cortex and the basal ganglia, but also synchronization within cortex and within basal ganglia may be related, suggesting potentially more global way of functional interaction. More coherent dynamics in one brain region may modulate or activate the dynamics of another brain region in a more powerful way causing correlations between changes in synchrony strength in both regions

Silver thrones: majesty’s seats

Este trabajo se centra en el análisis y evolución de los tronos y sillones de plata, utilizados como atributo de poder. Se considera que el origen del mobiliario de plata estuvo en España, desarrollándose su uso en las Cortes europeas del siglo XVII. La riqueza del material propició que del ámbito civil pasaran al religioso. Existe un número importante de estos asientos en templos de los virreinatos del sur, principalmente en la antigua Audiencia de Quito, donde se conservan para las representaciones iconográficas de Cristo en Majestad, esculturas de vestir sentadas en ricos sillones forrados con tan valioso metal.This paper focuses on the analysis and development of silver thrones and chairs, used as an attribute of power. It is considered that the origin of the silver furniture originated in Spain, growing use in 17th century European courts. The wealth of the material led that the civil field passed to the religious. There are a significant number of these seats in temples of the Southern Viceroyalties, mainly in the former Audiencia of Quito, where they are preserved for the iconographic representations of Christ in Majesty, dress sculptures seated in rich armchairs lines with such valuable metal

Recent Results from the K2K Experiment

The K2K experiment has collected approximately half of its allocated protons on target between June of 1999 and July of 2001. These proceedings give a short introduction to the experiment and summarize some of the recent results.Comment: Invited talk at the Seventh International Workshop on Tau Lepton Physics (TAU02), Santa Cruz, Ca, USA, Sept 2002, 7 pages, LaTeX, 7 eps figures. PSN TH0