845 research outputs found
After the Afghan War: Nationalism and the Changes in the Balance of Power in Central Asia
No abstract available DOI: http://dx.doi.org/10.5564/mjia.v0i8-9.125 The Mongolian Journal of International Affairs; Number 8-9, 2002, Pages 12-2
Teaching The Astronomical Visualization Used For The Explanation Of The Ancient Ein-Gedi Archaeological Zodiac And Its Related Inscription
In teaching the history of astronomy, mosaics found at ancient synagogues in the Middle East are invaluable. The ancient Zodiac signs forming such mosaics are related to the seasons indicating the fact that the precession of the Earth axis had been neglected or even unknown. We demonstrate that the sage’s derivations of the patriarch’s ages in the chronology of the Septuagint version of the bible correspond to the signs of the zodiac, an assumption supported, for example, by the inscription found in the ruins of the Jewish synagogue in Ein-Gedi. Through our astronomical calculations we solve the sun-moon conjunctions occurring at the beginning of the zodiac signs – at the Vernal Equinox - considering the real sun's orbit. Since the Septuagint version of the bible is assumed to have been translated into Greek in the 3rd century BC from an earlier existing Hebrew source, the fact that the ages of the patriarchs correspond to the observations of the real sun's motion, leads to the conclusion that the Septuagint version is an important book of the history of science. As a result of our findings, the bible can, thus, be regarded as one of the most ancient detailed scientific teaching sources leading to improved astronomical models which determined the planetary orbits
Russia\u27s Counterinsurgency in North Caucasus: Performance and Consequences
The North Caucasus region has been a source of instability for the past several centuries. Most recently, Chechen aspirations to achieve full independence after the break-up of the Soviet Union led to two disastrous wars. While the active phase of the Chechen conflict ended in 2000 – more than a decade ago—the underlying social, economic, and political issues of the region remain. A low-level insurgency continues to persist in the North Caucasus region, with occasional terrorist attacks in the Russian heartland. There are few reasons to expect any substantial improvement in the situation for years to come. Chechnya functions as a de facto independent entity; Islamist influence in Dagestan is growing, terror attacks continue, and the rest of the North Caucasus requires massive presence of Russian security services to keep the situation under control. Preventing the North Caucasus from slipping back into greater instability requires tackling corruption, cronyism, discrimination, and unemployment—something the Kremlin has so far not been very willing to do. “Small wars” in the Caucasus resonated as far away as Boston, MA, and more international attention and cooperation is necessary to prevent the region from blowing up.https://press.armywarcollege.edu/monographs/1503/thumbnail.jp
Decays in Quantum Hierarchical Models
We study the dynamics of a simple model for quantum decay, where a single
state is coupled to a set of discrete states, the pseudo continuum, each
coupled to a real continuum of states. We find that for constant matrix
elements between the single state and the pseudo continuum the decay occurs via
one state in a certain region of the parameters, involving the Dicke and
quantum Zeno effects. When the matrix elements are random several cases are
identified. For a pseudo continuum with small bandwidth there are weakly damped
oscillations in the probability to be in the initial single state. For
intermediate bandwidth one finds mesoscopic fluctuations in the probability
with amplitude inversely proportional to the square root of the volume of the
pseudo continuum space. They last for a long time compared to the non-random
case
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