Background: Coronary angiography consists of the selective injection of contrast agents in coronary arteries. Optimal strategy for heparin administration during coronary angiography has yet to be determined. We assessed the effect of heparin administration during coronary angiography on vascular, hemorrhagic, and ischemic complications.Methods: Five hundred candiates for diagnostic coronary ang...

In this paper we break a knapsack based two-lock cryptosystem proposed at ICICS’03 [7]. The two-lock cryptosystem is a commutative encryption algorithm that is very useful for the construction of the general t-out-of-n oblivious transfers and millionaire protocol. However, our analysis shows that the proposed knapsack based two-lock cryptosystem is extremely insecure. The serious flaw is that t...

Hardware lock elision (HLE) concurrently executes lock critical sections as hardware transactions, but fallbacks to the original sequential lock fallback path when some hardware transaction fails. Recent software-assisted lock-removal based schemes provide a better concurrency by sacrificing safety (opacity). Hardware transactions can execute at the same time with the lock fallback path as long...

In this short paper we show that hardware-based transactional lock elision can provide benefit by reducing the incidence of lock holder preemption, decreasing lock hold times and promoting improved scalability.

openshapedoor within door { booleanopen int size point hinge , lock line door open = true size = 200 hinge = \NW + {10, 0} lock = if open then hinge-{0, size} else hinge+{size, 0} door = [hinge,lock] } width = 800 length = 800 centre = {500, 500} .

A 66-year-old woman presented with painful abdominal skin necrosis where she had been injecting subcutaneous enoxaparin 1 week following elective knee arthroplasty (Figure). Her complete blood cell count and basic metabolic panel yielded unremarkable findings. Enoxaparin was discontinued, a direct thrombin inhibitor started. Heparin platelet factor 4 IgG antibody strongly positive (2.065 OD), a...

The objective of the thesis is to address the problem of clock skew between two different clock domains in modern day microprocessors due to the process, voltage and temperature (PVT) variations. In order to mitigate the misalignment of the clocks in the different clock domains, a delay line is added in all but the reference clock domain. These delay lines add or subtract the delay (as necessar...

This paper describes a technique for use when multiple instances of a data base management system (DBMS), each with its own cache (buffer pool), can directly read and modify any data stored on a set of shared disks. Global locking and coherency control protocols are necessary in this context for assuring transaction consistency and for maintaining coherency of the data cached in the multiple ca...