Grid computing is concerned with the sharing and coordinated use of diverse resources in distributed "virtual organizations.” The dynamic and multi-institutional nature of these environments introduces challenging security issues that demand new technical approaches. In particular, one must deal with diverse local mechanisms, support dynamic creation of services, and enable dynamic creation of ...

The main objective of this research work is to extend the capability of Globus Toolkit (GT) to support semantic description and discovery of Grid Services. We proposed Protégé Enabled Globus toolkit(PEG) )in which we have integrated GT with Protégé editor to support globus user for semantic descriptions of Grid services and the Algernon inference engine is used to interact with the OWLS descrip...

Introduction Parkinson’s disease is a progressive neurodegenerative movement disorder characterized by reduction and slowness of movement (akinesia and bradykinesia), muscle rigidity, and tremor. The core pathology of the disease is the degeneration of midbrain dopaminergic neurons in the substantia nigra pars compacta that project to the striatum and other basal ganglia nuclei. The striatum is...

A Grid system is a Virtual Organization that is composed of several autonomous domains .It concerned with the sharing and coordinated use of diverse resources in distributed "virtual organizations.” The dynamic and multiinstitutional nature of these environments introduces challenging security issues that demand new technical approaches. In particular, one must deal with diverse local mechanism...

OBJECT This study was performed to evaluate the reliability and utility of using monopolar impedance monitoring for estimation of the location of the thermocouple electrode during a pallidotomy procedure. METHODS In 26 patients, impedance profiles were measured at 2-mm intervals and anatomical boundaries were marked on postoperative MRI studies in 19 patients. The pattern of change in impedan...

We herein report the case of a 15-year-old male patient with pantothenate kinase-associated neurodegeneration. The classic "eye-of-the-tiger" appearance was initially present on the globus pallidi on T2-weighted MR images and had disappeared by the time of the 10-month follow-up examination. Fluid-attenuated inversion recovery images revealed marked hypointensity in the globus pallidi and denta...

Globus pharyngeus is a common disorder and accounts for 5% of all ENT referrals. Objectives. To evaluate the role of barium swallow and endoscopy in these patients, to ascertain the incidence, if any, of aerodigestive tract malignancy in this group and to assess the natural evolution of globus pharyngeus. Materials and Methods. Seventy-nine patients underwent barium swallow and rigid oesophagos...

UNLABELLED A 10-year-old boy with transcobalamin II (TCII) deficiency on oral cyanocobalamin therapy presented with acute right hemiparesis and sensory axonal neuropathy in the context of an intercurrent viral illness. MRI demonstrated unilateral globus pallidus stroke with normal MRA. Echocardiogram was normal. Methylmalonic acid in serum was mildly elevated at 10.29 μmol/L (normal < 0.37 μmol...

Large-scale scientific and engineering applications are increasingly being hosted as Grid services using Globus middleware complying to the Open Grid Services Architecture (OGSA) framework. In order for users to fully embrace Grid applications, seamless access to Grid services is required. In working towards this aim we present the design and implementation of Grid clients that utilise the lang...

The “Grid” has become the next incarnation of the utility computing vision: seamless access to data and services anytime, anywhere. Sharing a utility infrastructure requires high standards of security. Grid platforms such as the Globus Toolkit, the Grid Engine, Platform or the forthcoming Open Grid Services Architecture (OGSA) include various security mechanisms from encrypted communication, us...