A new circadian variant was isolated by screening the intercross offspring of wild-caught mice (Mus musculus castaneus). This variant was characterized by an initial maintenance of damped oscillations and subsequent loss of rhythmicity after being transferred from light-dark (LD) cycles to constant darkness (DD). To map the genes responsible for the persistence of rhythmicity (circadian ratio) ...

BACKGROUND Recent research suggests that a traumatic brain injury (TBI) can significantly increase the risk of later development of psychosis. However, it is unknown whether people at clinical high risk (CHR) of psychosis have experienced TBI at higher rates, compared to otherwise healthy individuals. This study evaluated the prevalence of mild TBI, whether it was related to past trauma and the...

s | 67 PM459 Brain Network Characteristics of Individuals at Clinical High Risk for Psychosis in between Normality and Psychosis: A Combined Structural and Functional Imaging Study Soo-Hee Choi, Jun Soo Kwon Seoul National University, Republic of Korea Abstract Objective: In an effort to improve early recognition and intervention in patients with schizophrenia (SZ), individuals at clinical high...

s | 67 PM459 Brain Network Characteristics of Individuals at Clinical High Risk for Psychosis in between Normality and Psychosis: A Combined Structural and Functional Imaging Study Soo-Hee Choi, Jun Soo Kwon Seoul National University, Republic of Korea Abstract Objective: In an effort to improve early recognition and intervention in patients with schizophrenia (SZ), individuals at clinical high...

The Constraint Handling Rules (CHR) language has become a major specification and implementation language for constraint-based algorithms and applications. Algorithms are often specified using inference rules, rewrite rules, sequents, proof rules, or logical axioms that can be directly written in CHR. Based on first order predicate logic, this clean semantics of CHR facilitates non-trivial prog...

Confluence is a fundamental property of Constraint Handling Rules (CHR) since, as in other rewriting formalisms, it guarantees that the computations are not dependent on rule application order, and also because it implies the logical consistency of the program declarative view. In this paper we are concerned with proving the confluence of nonterminating CHR programs. For this purpose, we derive...

Constraint Handling Rules (CHR) is a high-level rule-based language extension, commonly embedded in Prolog. We introduce a new occurrence representation of CHR programs, and a new operational semantics for occurrence representations, equivalent to the widely implemented refined operational semantics. The occurrence representation allows in a natural way to express guard and continuation optimiz...

CHR∨ has emerged as a versatile knowledge representation language, usable for an unparalleled variety of automated reasoning tasks: constraint solving, optimization, classification, subsumption, classical deduction, abduction, truth-maintenance, belief revision, belief update and planning. In this paper, we add default reasoning to this list, by showing how to represent default logic theories i...

We present a new approach to termination analysis of Constraint Handling Rules (CHR). Unlike current approaches, our approach has no restrictions on the kind of rules in the CHR program. We propose a termination condition that verifies conditions imposed on the dynamic process of adding constraints to the store, instead of a termination argument based on the comparison of sizes of consecutive c...

Constraint Handling Rules (CHR) is a high-level language commonly used to write constraint solvers. Most CHR programs depend on the refined operational semantics, resulting in an obfuscated logical reading and non-termination or worse under the theoretical operational semantics. We introduce a source to source transformation called guard simplification which allows CHR programmers to write self...