8,523 research outputs found
Mergers
Using small matched samples of companies which are, and are not, highly involved in acquisition in the period 1986-90, an investigation is mounted to ascertain whether "acquisitiveness" has any impact upon the remuneration of the top directors over and above what one would expect because of the growth in "size". The evidence suggests it does, if returns to share options are included in the measure of remuneration.
Reconnection of superfluid vortex bundles
Using the vortex filament model and the Gross Pitaevskii nonlinear
Schroedinger equation, we show that bundles of quantised vortex lines in helium
II are structurally robust and can reconnect with each other maintaining their
identity. We discuss vortex stretching in superfluid turbulence and show that,
during the bundle reconnection process, Kelvin waves of large amplitude are
generated, in agreement with the finding that helicity is produced by nearly
singular vortex interactions in classical Euler flows.Comment: 10 pages, 7 figure
The International Convention on the Elimination of All Forms of Discrimination Against Women: A Comparison of Its Implementation and the Role of Non-Governmental Organisations in the United Kingdom and Hong Kong
Although the Convention on the Elimination of All Forms of Discrimination Against Women ( CEDAW ) was implemented in Hong Kong a full ten years after its enactment in the United Kingdom, evidence suggests that it is having a more practical impact in Hong Kong than in the United Kingdom largely because Hong Kong women\u27s organizations are making more use of CEDAW in their current lobbying efforts. This article introduces CEDAW and its enforcement mechanisms, and compares its implementation in the two jurisdictions. The authors analyze the extent to which CEDAW is considered in public policy making, the extent to which the judiciary has relied upon CEDAW in deciding cases, and the participation of nongovernmental organizations in the reporting process. The article concludes with a comparison of the two jurisdictions and examines the opportunities for more effective implementation of CEDAW
Kidnapping Politics in East Asia
Introduction: History is filled with political abductions, incidents in which individuals are kidnapped and held hostage by hostile groups or states to gain leverage or legitimacy for their cause.1 Such episodes have been used since antiquity to highlight the failure of rulers to perform their single-most important function-- protecting citizens from harm. Consequently, kidnappings have opened up deep political chasms and often have been used by political actors to identify enemies, distill collective fears, clarify national deficiencies, redefine frontiers, and mobilize social movements. They have long figured in justifications for both aggression and conciliation with neighbors. Some political actors have capitalized on captivity to frame and highlight national weakness and the fecklessness of leaders. Others have spun out accounts of heroism to demonstrate national strength and visionary leadership. Either way, the manipulation of the captivity passion for political ends often has been used to generate public sympathy to reorient national policies.Henry Luce FoundationChiang Ching-kuo Foundation for International Scholarly Exchang
Dynamics of vortex tangle without mutual friction in superfluid He
A recent experiment has shown that a tangle of quantized vortices in
superfluid He decayed even at mK temperatures where the normal fluid was
negligible and no mutual friction worked. Motivated by this experiment, this
work studies numerically the dynamics of the vortex tangle without the mutual
friction, thus showing that a self-similar cascade process, whereby large
vortex loops break up to smaller ones, proceeds in the vortex tangle and is
closely related with its free decay. This cascade process which may be covered
with the mutual friction at higher temperatures is just the one at zero
temperature Feynman proposed long ago. The full Biot-Savart calculation is made
for dilute vortices, while the localized induction approximation is used for a
dense tangle. The former finds the elementary scenario: the reconnection of the
vortices excites vortex waves along them and makes them kinked, which could be
suppressed if the mutual friction worked. The kinked parts reconnect with the
vortex they belong to, dividing into small loops. The latter simulation under
the localized induction approximation shows that such cascade process actually
proceeds self-similarly in a dense tangle and continues to make small vortices.
Considering that the vortices of the interatomic size no longer keep the
picture of vortex, the cascade process leads to the decay of the vortex line
density. The presence of the cascade process is supported also by investigating
the classification of the reconnection type and the size distribution of
vortices. The decay of the vortex line density is consistent with the solution
of the Vinen's equation which was originally derived on the basis of the idea
of homogeneous turbulence with the cascade process. The obtained result is
compared with the recent Vinen's theory.Comment: 16 pages, 16 figures, submitted to PR
Japan’s Nuclear Hedge: Beyond "Allergy" and Breakout
This chapter examines the future of Japan’s hedged dependence on U.S. extended deterrence and encourages more imaginative thinking about potential outcomes and strategic implications as the second nuclear age unfolds
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