1,980 research outputs found
Photometric and kinematical study of nearby groups of galaxies around IC 65 and NGC 6962
We discuss the structure, galaxy content and kinematics of a sparse, probably
collapsing group around IC 65 and an evolved rich group around NGC 6962Comment: Poster contribution on 2 pages with 2 figures to be published in ESO
Astrophysics Symposia: "Groups of Galaxies in the Nearby Universe", eds. I.
Saviane, V. Ivanov, J. Borissov
Dynamics and Shape of Brightest Cluster Galaxies
We identified Brightest Cluster Members (BCM) on DSS images of 1083 Abell
clusters, derived their individual and host cluster redshifts from literature
and determined the BCM ellipticity. Half the BCMs move at a speed higher than
37 % of the cluster velocity dispersion sigma_{cl}, suggesting that most BCMs
are part of substructures falling into the main cluster. Both, the BCM's
velocity offset in units of sigma_{cl}, and BCM ellipticity, weakly decrease
with cluster richness.Comment: 2 pages, 2 figures, Proc. ESO Workshop "Groups of galaxies in the
nearby Universe", Santiago, Chile, 5-9 Dec. 2005, ESO Astrophysics Symposia,
eds. I. Saviane, V. Ivanov & J. Borissova, Springer-Verla
Ignore the vetoes, and forget about Coalitions of the Willing: How the U.S. can achieve higher levels of foreign public support for its military operations
In the early 2000s, the US gained a great deal of foreign criticism over its military operations in Iraq, and later, Afghanistan. But what determines whether the foreign public will support such interventions? In new research which uses survey research based in Japan, Atsushi Tago finds that the use of force in the Middle East by the US is most likely to be supported by foreigners when it also has the approval of the United Nations Security Council, and that much of that support continues even if the UN resolution is vetoed by Russia and China. Significantly, they also find that when the US forms a friendly âCoalition of the Willingâ, this does little to increase foreign support for military actions
Kinematic analysis of the instep kick action of elementary school students in soccer âfocus on ball speed and rebound ratioïŒ
The purpose of this study was to establish guidelines for proper selection of soccer balls for elementary school students. Ten youth soccer team players aged 8-11 years, who all kicked using their right foot, were included in this study. The participants were asked to perform an instep kick with full strength to hit a stationary soccer ball toward a target 8 m away. Two types of balls (with different masses) were used in the experiment. A size 4 ball weighing 360 g and a size 3 ball weighing 300 g. For data collection, a Vicon optical three-dimensional motion analysis system was used. For kinematic calculations, ball velocity, toe velocity, and rebound ratio (ball velocity / toe velocity right before impact) were calculated. A significant difference was observed in velocities in both kicks (
Obamaâs visit to Hiroshima is viewed as âa sort ofâ apology by the people of Japan.
This week President Obama will visit the Japanese city of Hiroshima, more than 70 years after the city was destroyed by a US nuclear attack at the end of World War II. While the White House has stated that the President will not apologize for the atomic bombing during his visit â and has also made clear that his visit should not be seen as an apology â it is hard not to link the visit to the idea of an apology. Atsushi Tago and Kazunori Inamasu conducted a Japan-wide survey and a survey of Hiroshima residents. They found evidence that while neither the people of Hiroshima nor the Japanese public more generally are looking for an apology from Obama, even without a formal statement of apology, his visit is still seen to be âa sort of apologyâ
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