We give a criterion for when idempotents of a ring R which commute modulo the Jacobson radical J(R) can be lifted to commuting idempotents of R. If such lifting is possible, we give extra information about the lifts. A “half-commuting” analogue is also proven, and this is used to give sufficient conditions for a ring to have the internal exchange property. In particular, we show that if R/J(R) ...

This paper addresses one of the most promising technologies that meets the demand in terms of miniaturization and increased performance. IPDiA has developed a range of silicon interposers which, when combined with Integrated Passive Devices (IPD) and Through Silicon Vias (TSV), offer a new solution to related portable products, implantable medical devices, avionics and defense.

This paper presents a deadlock avoidance scheme that was developed during the Mascada Project—Esprit LTR Project 22728. The deadlock problem occurs in a car body painting shop. From this application, an abstract problem was derived for which a deadlock avoidance method was developed. The paper presents the deadlock avoidance scheme and its correctness proof. In addition, implementation issues a...

The earliest detectable mammalian prespliceosome complex (E) contains the non-snRNP splicing factor U2AF, U1 snRNP, and several spliceosome-associated proteins (SAPs). We show that specific complexes, designated E3' and E5', assemble independently on RNAs containing only a 3' or 5' splice site, respectively. U2AF is enriched in E3', whereas U1 snRNP is enriched in E5'. Using a highly sensitive ...

In this paper, we present a transient modeling of electromigration (EM) in TSV and TSV-to-wire interfaces in the power delivery network (PDN) of 3D ICs. In particular, we model atomic depletion and accumulation, effective resistance degradation, and full chip-scale PDN lifetime degradation due to EM. Our major focuses are on: (1) timedependent multi-physics EM modeling approach to model TSVs an...

Abstract—An ultra-wideband (UWB) antenna with triple bandnotched characteristics is presented in this paper. The triple-notched bands (5.15–5.35GHz and 5.725–5.825GHz for WLAN, 7.9–8.395 GHz for X-band) are achieved by using only one novel composite resonator with multiple resonant characteristics. The resonator is placed on the back surface of the substrate and connected to the radiation patch...

1 I n t r o d u c t i o n The tree pat tern matching approach for code selection has proven very successful. I t allows to specify code selectors using declarative specifications and to derive efficient code selectors automatically. The program which translates the specification into the final code selector program is called code selector generator. Sometimes it is integrated with generators fo...

We study a contest between two teams. The teams include an equal number of players. Each player of a team participates in a component battle, competing against a matched rival from the other team. A team wins if and only if its players prevail in a suffi ciently large number of component battles. The winning team is awarded a prize, which is a public good for all its players. In addition, a pla...

The complex processes of mRNA transcription and splicing were traditionally studied in isolation. In vitro studies showed that splicing could occur independently of transcription and the perceived wisdom was that, to a large extent, it probably did. However, there is now abundant evidence for functional interactions between transcription and splicing, with important consequences for splicing re...