the large number of applications manages time varying data. existing databasetechnology seldom supports temporal database, tdb, according to time aspects.these intrinsic temporal database applications rely on such database which storesand retrieves time referenced data. moreover, applications need to be managed oncommon data items access simultaneously and to be precluded from inconsistencyas s...

objectives: the aim of this study was to investigate the effectiveness of verbal self-instruction on pessimistic attribution style about negative events in children with dyslexia. methods: the study was experimental with pre-test-post-test and control group. the statistical population consists of all dyslexic students of maktab ali school in tehran city. forty students were selected by convenie...

Stagnation as the new norm and fiscal policy are examined in a New Keynesian model with adaptive learning determining expectations. We impose inflation and consumption lower bounds, which can be relevant when agents are pessimistic. The inflation target is locally stable under learning. Pessimistic initial expectations may sink the economy into steady-state stagnation with deflation. The deflat...

The Pessimistic Induction from falsity of past theories forms a perennial argument against scientific realism. This paper considers and rebuts two recent arguments due to Lewis (2001) and Lange (2002) to the conclusion that the argument from Pessimistic Induction (in its best known form) is actually fallacious. With this I want to re-establish the dignity of the Pessimistic Induction by calling...

Two university varsity swimming teams took the Attributional Style Questionnaire (ASQ) at the start of the season. Swimmers with a pessimistic explanatory style wellt on to show more unexpected poor performances during competition titan optimistic swimmers. We then tested the purported mechanism of this effect by experimentally simulating defeat, giving each swimmer falsely negative' times. Per...

In large scale distributed systems, replication is a popular technique for improving the accessibility of information and surviving the unreliability of communication networks. Pessimistic replication and optimistic replication are two contrasting replication models. They represent the two extremes in the availability-consistency. Pessimistic replication favors consistency over availability, wh...

Transactional Memory (TM) is a high-level programming abstraction for concurrency control that provides programmers with the illusion of atomically executing blocks of code, called transactions. TMs come in two categories, optimistic and pessimistic, where in the latter transactions never abort. While this simplifies the programming model, high-performing pessimistic TMs can be complex. In this...