merely lead to vagueness, ambiguity, or nonsense. For example, “Cohesiveness is the thread-forming ability of mucus under the influence of large amplitude deformation,” probably means, “Cohesiveness refers to mucus forming threads when mucus is stretched.” This practice is clearly becoming more common in medical writing. Reviewers should be encouraged to review manuscripts not only for scientif...

Approximately eight percent of human males (and a fraction of one percent of females) in a given population of aircrew training applicants will have some degree of color insensitivity: that is, be unable to discriminate between certain shades of a color and white, or, between shades of colors, or even between certain colors. The insensitivity may range from mild to complete, and should not, in ...

Modern programming languages and operating systems encourage the use of threads to exploit concurrency and simplify program structure. An integral and important part of the Java language is its multithreading capability. Despite the portability of Java threads across almost all platforms, the performance of Java threads varies according to the multithreading support of the underlying operating ...

We describe an implementation of a threads library that provides extremely lightweight threads within a single UNIX process while allowing fully concurrent access to system resources. The threads are lightweight enough so that they can be created quickly, there can be thousands present, and synchronization can be accomplished rapidly. These goals are achieved by providing user threads which mul...

The primitives for Java threads and POSIX threads are compared by means of a simulation of cars at a crossing. These cars have to be synchronized in such a way that at every moment only cars in one direction proceed. The initial solution is based on compound await statements. This solution is subsequently implemented with Java threads and POSIX threads. These two thread formalisms differ: POSIX...

There is a trend towards multicore or manycore processors in computer architecture design. In addition, several parallel programming models have been introduced. Some extract concurrent threads implicitly whenever possible, resulting in fine grained threads. Others construct threads by explicit user specifications in the program, resulting in coarse grained threads. How these two mechanisms imp...

Modifications that introduce parallelization of standard cuckoo search algorithm are proposed in this paper. Basic form of the cuckoo search algorithm has already shown great potential for optimization problems, especially when applied to unconstrained continuous functions. In this paper two aspects of parallelization are proposed. The first one addresses the performance issue, while the second...

In this paper we study External A*, a variant of the internal A* algorithm that employs external memory. The approach applies to implicit, undirected, unweighted state space problem graphs with consistent estimates. The complexity of the External algorithm is almost linear in external sorting time and accumulates to O(sort(|E|) + scan(|V |)) I/Os, where V and E are the set of nodes and edges in...