Background: Pre-clinical investigation of stem cells for repairing damaged myocardium predominantly used rodents, however large animals have cardiac circulation closely resembling the human heart. The aim of this study was to evaluate whether SPECT/CT myocardial perfusion imaging (MPI) could be used for assessing sheep myocardium following an acute myocardial infarction (MI) and response to int...

Icing disaster is one of the most serious threats to power grid security in China. This article provides a brief glance current China's monitoring and prevention methods icing (MPI) development status. Despite late start, research on MPI have made outstanding achievements, including formation mechanism causing ice disaster, key technologies characteristics, anti/de-icing approaches application....

Open MPI provides an implementation of the MPI standard supporting native communication over a range of high-performance network interfaces. Los Alamos National Laboratory (LANL) and Oak Ridge National Laboratory (ORNL) collaborated on creating a port for Cray XE and XK systems. That work has continued and with the release of version 1.8 Open MPI now conforms to MPI-2.2 and MPI-3.0 on Cray XE, ...

The MPI datatype functionality provides a powerful tool for describing structured memory and file regions in parallel applications, enabling noncontiguous data to be operated on by MPI communication and I/O routines. However, no facilities are provided by the MPI standard to allow users to efficiently manipulate MPI datatypes in their own codes. We present MPITypes, an open source, portable lib...

A large number of MPI implementations are currently available, each of which emphasize different aspects of high-performance computing or are intended to solve a specific research problem. The result is a myriad of incompatible MPI implementations, all of which require separate installation, and the combination of which present significant logistical challenges for end users. Building upon prio...

We show that many important properties of certain MPI programs can be verified by considering only a class of executions in which all communication takes place synchronously. In previous work, we showed that similar results hold for MPI programs that use only blocking communication (and avoid certain other constructs, such as MPI_ANY_SOURCE); in this paper we show that the same conclusions hold...

BACKGROUND Older adults are often excluded from clinical trials. Decision making for administration of statins to older patients with diabetes mellitus (DM) is under debate, particularly in frail older patients with comorbidity and high mortality risk. We tested the hypothesis that statin treatment in older patients with DM was differentially effective across strata of mortality risk assessed b...

In this paper we examine the topic of writing fault-tolerant Message Passing Interface (MPI) applications. We discuss the meaning of fault tolerance in general and what the MPI Standard has to say about it. We survey several approaches to this problem, namely checkpointing, restructuring a class of standard MPI programs, modifying MPI semantics, and extending the MPI specification. We conclude ...

AIM Using Coronary arteriogram as the gold standard, stress ECG (Treadmill Test - TMT) has a sensitivity of 68% and specificity (77%) for the detection of coronary artery disease (CAD). Stress myocardial perfusion imaging (MPI) with Tc-99m Sestamibi gated SPECT has a sensitivity of 85% and specificity of 90%. The aim of the study was to ascertain if the combined use of the two physiologic tests...