This paper is devoted to presenting wider characterizations of memory and cointegration in time series, in terms of information-theoretic statistics such as the entropy and the mutual information between pairs of variables. We suggest a nonparametric and nonlinear methodology for data analysis and for testing the hypotheses of long memory and the existence of a cointegrating relationship in a n...

This paper presents a review of experiments performed by IBM to investigate the causes of soft errors in semiconductor memory chips under field test conditions. The effects of alphaparticles and cosmic rays are separated by comparing multiple measurements of the softerror rate (SER) of samples of memory chips deep underground and at various altitudes above the earth. The results of case studies...

BACKGROUND patients suspected of dementia frequently undergo additional diagnostic testing (e.g. brain imaging or neuropsychological assessment) after standard clinical assessment at a memory clinic. This study investigates the use of additional testing in an academic outpatient memory clinic and how it influences the initial diagnosis. METHODS the initial diagnosis after standard clinical as...

Unit testing is a scalable and effective way to uncover software faults. In the JNuke project, automated regression tests combined with coverage measurement ensured high code quality throughout the project. By using a custom testing environment, functionality was extended beyond what is commonly available by unit test frameworks. Low-overhead memory leak detection was implemented through wrappi...

BACKGROUND Selectively testing parts of learned materials can impair later memory for nontested materials. Research has shown that such retrieval-induced forgetting occurs for low-integrated materials but may be prevented for high-integrated materials. However, previous research has neglected one factor that is ubiquitous in real-life testing: affective state. METHODOLOGY/PRINCIPAL FINDINGS W...

Today’s ASIC designs consist of more memory in terms of both area and number of instances. The shrinking of geometries has an even greater effect upon memories due to their tight layouts. These two trends are putting much greater demands upon memory BIST requirements. At-speed testing and custom test algorithms are becoming essential for insuring overall product quality. At-speed testing on mem...

The testing effect, or the finding that taking an initial test improves subsequent memory performance, is a robust and reliable phenomenon--as long as the final test involves recall. Few studies have examined the effects of taking an initial recall test on final recognition performance, and results from these studies are equivocal. In 3 experiments, we attempt to demonstrate that initial testin...

In this paper, scan and ring schemes of the pseudo-ring memory self-testing are investigated. Both schemes are based on emulation of the linear or nonlinear feedback shift register by memory itself. Peculiarities of the pseudo-ring schemes implementation for multi-port and embedded memories, and for register file are described. It is shown that only small additional logic is required and allows...

The testing effect, or the finding that taking an initial test improves subsequent memory performance, is a robust and reliable phenomenon—as long as the final test involves recall. Few studies have examined the effects of taking an initial recall test on final recognition performance, and results from these studies are equivocal. In 3 experiments, we attempt to demonstrate that initial testing...

This paper presents a new architecture of graphics system for microkernel operating systems, including real-time systems. The following major parts the are presented: user-level subsystem responsible interaction with user applications; bottom-level providing functionality drivers, such as managing output, video memory management, etc.; kernel-level kernel, and performing low-level operations, w...