It was shown in [hep-th/0503009], in the context of bosonic theory that the IR singular terms that arise as a result of integrating out high momentum modes in nonplanar diagrams of noncommutative gauge theory can be recovered from low lying tree-level closed string exchanges. This follows as a natural consequence of world-sheet openclosed string duality. Here using the same setup we study the p...

[1] We compare open-closed field line boundary positions from the BATS-R-US Global MHD model and CANOPUS photometer measurements of red-line emissions. We choose intervals of steady interplanetary and ionospheric conditions in order to adhere to the ‘‘steady-state’’ picture that we are trying to address. Nine intervals are chosen that correspond to stable IMF and auroral conditions that can be ...

This paper gives an overview of educational operating system called COLIBROS. It is small, object oriented, library operating system, based on micro-kernel concepts, supporting high level concurrency and synchronization primitives. In fact, COLIBROS is simplified operating system kernel accompanied with hardware emulation layer that emulates keyboard, monitor, disk and interrupt mechanism. A co...

In these lecture notes we discuss a body of work in which Morse theory is used to construct various homology and cohomology operations. In the classical setting of algebraic topology this is done by constructing a moduli space of graph flows, using homotopy theoretic methods to construct a virtual fundamental class, and evaluating cohomology classes on this fundamental class. By using similar c...

EASY, a plug-and-play educational system, is portable, compact and complete system for micro-strip sensor characterization. Ideal making basic or complex experiments. It based on the Classic Alibava System [1], largely used within CERN community to test detectors particle The can be configured work with pulsed laser light radioactive sources. aim of this illustrate students in operation silicon...