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The limited angular resolution of γ–ray telescopes prevents the straight identification of the majority of the sources detected so far. This is particularly true for the low latitude, probably galactic ones, only 10 % of which has been identified. Most of the counterparts are Isolated Neutron Stars, both radio–loud and radio–quiet, characterised by an extremely high value of fX /fopt. The best ...

â â â â â â â â â â â  the recent global crisis, as a big crash ( baldwin and simon , 2009), has reduced foreign demand growth affecting total countries’ exports. given the importance of foreign trade to nations and the reality that recent crisis has affected international trade we study the effects of the global financial crisis on trade relations between countries by using ma and cheng (200...

We derive an efficient CH-type inequality. Quantum mechanics violates our proposed inequality independent of the detection-efficiency problem. In photonic Bell-type experiments [1], when photon pairs with parallel linear polarizations are emitted, one can consider a Clauser-Horne (CH) inequality [2], at the level of hidden variables, in the form − 1 ≤ Srq,HV (â, b̂, â, b̂, λ) ≤ 0 (1) where Srq,HV...

The present paper gives a rigorous description of a model of the quantized electromagnetic field interacting with a classical electromagnetic potential A. The result of the model is surprisingly simple: the interacting field operator  equals the sum Â+A Î of the non-interacting field operator and the given classical potential. This result is shown to agree with common knowledge about the problem.

â â â  â â â â  abstract â  as the chances of a successful conclusion to the doha round of trade liberalization under the wto become increasingly problematic, so the pace of negotiating local free trade agreements (ftas) is increasing. according to the wto report, countries in the asia-pacific region are “consolidating their drive towards regionalism at an accelerated pace”. after the trade...