نتایج جستجو برای: تصویربرداری پرفیوژن میوکارد mpi
تعداد نتایج: 11485 فیلتر نتایج به سال:
Introduction: A Master Patient Index(MPI) is a centralized index of all patients in a health care system. This index is composed of a unique identifier for each patient link to his/her demographic data and clinical encounters. A MPI is essential to ensure data interoperability in different health care institution. The Health ministry of Sri Lanka planning to develop MPI for the country. This pr...
There are several existing concepts and solutions that are intended for coupling several parallel computers in means of running a single MPI application on top of them. PACX–MPI [1] is one of them that relies on existing MPI libraries on the respective machines. This paper discusses several facts and aspects for using PACX–MPI in an Cluster–of–Clusters (CoC) environment.
The MPI remote-memory access (RMA) operations provide a different programming model from the regular MPI-1 point-to-point operations. This model is particularly appropriate for cases where there are multiple communication events for each synchronization and where the target memory locations are known by the source processes. In this paper, we describe a benchmark designed to illustrate the perf...
In the nanomolar enzyme and inhibitor concentration range, 1 mol of mucus proteinase inhibitor (MPI) inhibits 1 mol of neutrophil elastase, cathepsin G, trypsin, and chymotrypsin. In the micromolar concentration range, the enzyme:inhibitor binding stoichiometry is still 1:1 for elastase but shifts to 2:1 for the three other proteinases. These data could be confirmed by three nonenzymatic method...
مقدمه: ایسکمیک پره کاندیشنینگ (ischemic preconditioning) پدیده ای است که در طی آن دوره های کوتاه مدت ایسکمی موجب حفاظت قلب در مقابل آسیب های ناشی از ایسکمی طولانی می گردد. پیشنهاد گردیده که ماده نیتریک اکساید (no) یک ماده موثر در پدیده فوق می باشد. هدف از این مطالعه بررسی اثرات no برروی عملکرد قلبی در طی ایسکمی و پرفیوژن مجدد در قلب ایزوله موش صحرایی می باشد. روش کار: در این مطالعه تجربی از 28 ...
Background False positive nuclear stress myocardial perfusion imaging(MPI) findings are known to occur in obese patients and women with large breasts due to attenuation artifact. A false positive MPI study may lead to unnecessary coronary arteriography(Cath). CMR stress perfusion imaging is not affected by obesity and has better spatial resolution than MPI, without radiation exposure. The CE-MA...
Multi-threaded performance in MPI is of concern for future systems, particularly at Exascale, where massive concurrency will be necessary to leverage the full power of systems. While MPI provides generalized solutions and additional proposals like endpoints expand this general model, examining common use cases that have good solutions that may not be universally applicable is a viable additiona...
This paper describes the implementation, usage and experience with the MPI performance revealing extension interface (Peruse) into the Open MPI implementation. While the PMPI-interface allows timing MPI-functions through wrappers, it can not provide MPI-internal information on MPI-states and lower-level network performance. We introduce the general design criteria of the interface implementatio...
This paper proposes an interface that will allow MPI 2 dynamic programs – those using MPI SPAWN, CONNECT/ACCEPT, or JOIN – to provide information to parallel debuggers such as TotalView about the set of processes that constitute an individual application. The TotalView parallel debugger currently obtains information about the identity of processes directly from the MPI library using a widely ac...
The Message Passing Interface (MPI) is designed as an architecture independent interface for parallel programming in the shared-nothing, message passing paradigm. We briefly summarize basic requirements to a high-quality implementation of MPI for efficient programming of SMP clusters and related architectures, and discuss possible, mild extensions of the topology functionality of MPI, which, wh...
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