a nested polymerase chain reaction (pcr) assay with two pairs of primers was applied for the detection of m. tuberculosis complex dna in specimens of 51 patients. of these, 31 clinically diagnosed patients (group i) recruited from july 1996 to june 1997 were given antituherculous chemotherapy from one to six months with standard daily regimen (isaniazid, 5 mg/kg; rifampin, 10 mg/kg; pyrazinamit...

Defeasible Logic is a rule-based non-monotonic logic with tractable reasoning services. In this paper we extend Defeasible Logic with nested rules. We consider a new Defeasible Logic, called DLns, where we allow one level of nested rules. A nested rule is a rule where the antecedent or the consequent of the rule are rules themselves. The inference conditions for DLns are based on reflection on ...

Navigation in humans and many other animals relies on spatial representations of their environments. Three experiments examined how humans maintain sense of orientation between nested environments. Subjects can acquire new spatial representations easily without integrating them into their existing spatial knowledge system. While navigating between nested environments, subjects seemed to constan...

This paper presents an alternative approach for constructing a hierarchical rough set approximation in an information system. It is based on the notion of dependency of attributes. The proposed approach is started with the notion of a nested sequence of indiscernibility relations that can be defined from the dependency of attributes. With this notion, a nested rough set approximation can be eas...

Object technology has received considerable attention in the recent years for the integration of various local data sources in a multi-database system (MDBS). An objectoriented data model like ODMG-93 can serve as the canonical data model for the global layer in the MDBS. The ODMG-93 standard defines a closed nested ACID transaction model without intra-transaction parallelism. Although the nest...

This paper describes an implementation technique for integrating nested data parallelism into an object-oriented language. Data-parallel programming employs sets of data called “collections” and expresses parallelism as operations performed over the elements of a collection. When the elements of a collection are also collections, then there is the possibility for “nested data parallelism.” Few ...

Transformation of nested SQL queries into join queries is advantageous because a nested SQL query can be looked upon as a nested-loop join, which is just one of the several join implementations that may be available in a relational DBMS. In join queries, dangling (unmatched) operand tuples are lost, which causes a problem in transforming nested queries having the aggregate function COUNT betwee...

In this work we address contributions from scalars to (g − 2)μ. In order to explain the recently measured deviation by the BNL experiment on (g − 2)μ, it is necessary that these scalars are either light or couple strongly with muons. Here we explore this last possibility. We show that a scalar with mass of the order of 10 GeV provides significant contribution to (g − 2)μ if the Yukawa coupling ...

Complex applications consist of a large set of transactions which are interrelated. There are different kinds of dependencies among transactions of a complex application, e.g. termination or execution dependencies which are constraints on the occurrence of significant transaction events. In this paper, we analyze a set of (orthogonal) transaction dependencies. Here, we do not follow traditional...