ells only exit metaphase if all their chromosomes are both attached and under tension from microtubules of the bipolar spindle, which pull on sister kinetochores that face in opposite directions. report that tension creation requires Mtw1p and associated proteins, and is sensed by the conserved Ipl1p/Aurora B protein kinase. In the current model for Ipl1p action, many chromosomes initially have...

Theories of mobilization suggest that groups are more likely to resort to violence in the presence of political opportunity structures that afford greater prospects for extracting concessions from the government or better opportunities to topple ruling governments. However, existing efforts to consider the possible influences of political opportunity structures on incentives for violence and ci...

∗This work was supported by the Center for Statistics and the Social Sciences at the University of Washington with funds from the University Initiatives Funds. In addition, Quinn acknowledges research support under NSF Grant SES 01-36676. †Department of Political Science and CSSS, University of Washington, [email protected] ‡Department of Sociology, University of Washington, [email protected]...

Civil wars and con‡ict can be understood from an economic point of view only if there is incomplete contracting. I examine such settings and …rst discuss sources of incomplete contracting, from geography and ethnic and social distance to external interventions due to geopolitics or the presence of rents. Yet, since war is destructive, the contending parties might normally be expected to settle ...

The National Center for Cultural Competence (2000) has linked the cultural competence of researchers and practitioners to the elimination of health disparities among various racial/ethnic groups when compared to Anglo groups in the U.S. In addition there are institutional requirements for cultural competence in providing health care and conducting research. Cultural competence may be a needed c...