منابع مشابه
Restraining and Complete Reenement Planning Restraining and Complete Reenement Planning
Planning is a very hard task, so even reducing a spe-ciic planning problem to a sightly easier one can often be of much help. Many domains have properties which allow this reduction with reasonable eeort. This paper shows that besides using complete reenement, it can be helpful to search only for a subset of all possible solutions and presents examples of both strategies. They are demonstrated ...
متن کاملThrshold Radius for Restraining Rail
This paper deals with the threshold radius that warrants the use of single restraining rail for transit and railroads. Different railways use different threshold radius from 91m to 365m to provide restraining rail. These threshold figures are probably experience driven choices. The need for restraining rail may be related to a so-called derailment alarm coefficient of 1.2 sustained over 2m leng...
متن کاملRestraining Psychiatric Patients
Sir, I was interested to read the report of Akhtar and Jagawat (Journal, April 1993 ) regarding the restraint of psychiatric out-patients. While inhuman treatment of psychiatrically ill persons is to be condemned, the argument against the use of physical restraint seems at best superficial in the case of many psychotic patients. In the paper under discussion, the authors have admitted that rest...
متن کاملRestraining spindles in distress
uclear import is slowed by too much of a good thing. So says a new systems model of nuclear import from Riddick and Macara (page 1027), which predicts that high levels of the cargo carrier Importin- or the RanGEF RCC1 inhibit import. With its simple nucleus-versus-cytoplasm architecture, import is a good candidate for systems analysis. Most of the components have been identified, and biochemic...
متن کاملRestraining Epidemics by Improving Immunization Strategies
The way diseases spread through social and global transportation networks is crucially determining their risk for humanity. Based on percolation theory we quantitatively analyze the effect of immunization strategies on the spreading of diseases through networks and propose a novel approach to improve their effectiveness. We find that the network’s vulnerability to epidemics can be significantly...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 2002
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.296.5577.2301c