منابع مشابه
Cohesin gets pushed around
Cohesin gets pushed around ings of cohesin hold together sister chromatids. Armelle and colleagues now suggest that cohesin rings get pushed to their final resting places by transcription complexes. Cohesins are known to bind a heterochromatin protein at centromeres, but previous reports of cohesin localization on chromosome arms were incomplete. The authors did a comprehensive survey of four b...
متن کاملThe motion of a pushed, sliding object
In many robotic applications, manipulation planning for an object free to slide on a surface is an import; oblem. Physical analysis of the object's motion is made difficult by the absence of information about 1 stribution of support of die object, and of the resulting frictional forces. This paper describes a n iproach to the analysis of sliding motion. The instantaneous motion of the object ca...
متن کاملEstimating the friction parameters of pushed objects
In order to plan manipulation of an object by pushing, a robot must have a model of the geometry and the friction properties of the object. This paper presents an approach to estimating the relevant friction parameters by performing experimental pushes and observing the resultant motion. Recognition of objects based on their friction parameters is also explored.
متن کاملJumping (or being pushed) from maternity care?
fair, and valid test. The flaw in selection may be that it is impossible to reconcile the need for the recruitment process to fill all the training posts every year, and ensure that all these recruits pass the MRCGP examination within their 3 years of training. Any worries that the MRCGP examination is not a good test of competence needs to be addressed by the Royal College of General Practitio...
متن کاملInside dynamics of pulled and pushed fronts
We investigate the inside structure of one-dimensional reaction-diffusion traveling fronts. The reaction terms are of the monostable, bistable or ignition types. Assuming that the fronts are made of several components with identical diffusion and growth rates, we analyze the spreading properties of each component. In the monostable case, the fronts are classified as pulled or pushed ones, depen...
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ژورنال
عنوان ژورنال: Nature
سال: 2009
ISSN: 0028-0836,1476-4687
DOI: 10.1038/460042a