selective dissemination of information (sdi) is important in quick and update availability to information. sdi has also critical role in producing of knowledge. in this article has been explained one of the new information technology about sdi. at this survey has been explained about rss, rss feeds. rss readers (news aggregators), and also about install of feed reader (one of the rss readers). ...

BACKGROUND Many patients with electrical dyssynchrony who undergo cardiac resynchronization therapy (CRT) do not obtain substantial benefit. Assessing mechanical dyssynchrony may improve patient selection. Results from studies using echocardiographic imaging to measure dyssynchrony have ultimately proved disappointing. We sought to evaluate cardiac motion in patients with heart failure and elec...

The advantages and disadvantages of subsurface drip irrigation (SDI) as compared to alternative irrigation systems are conceptually discussed. Each category (advantages and disadvantages) is subdivided into three groups: 1) Water and soil issues; 2) Cropping and cultural practices, and 3) System infrastructure issues. The adaptation and adoption of SDI systems into diverse cropping systems, geo...

Segmental dilatation of ileum (SDI) is a rare clinical entity and so is anterior thoracic meningomyelocele (AMC). There has been no reported association between these two clinical entities. We hereby report a very rare presentation of these two in a 4 year old boy who presented with swelling in the right lower abdomen. Preoperative diagnoses were partial cecal volvulus and duplication cyst. At ...

This paper addresses two central questions relating to the future of spatial data infrastructures (SDIs) Where have we got to now? Where should go from here? The answers to the first question are to be found in a review of the main milestones of SDI development over the last two decades and a comparative evaluation of SDI experiences in different parts of the world which constitutes the first m...

The practical exploitation of SDI (Spatial Data Infrastructures) raises number of issues as far as it grows. Among them is the heterogeneity of data sources and thus the difficulty for GIS users not to depend on the data source format and of course to learn different systems. This a major flaw with respect to reuse and data sharing. The purpose of our work is to propose a new semantic layer der...

A more integrated and holistic approach to management of spatial information relating to coastal and marine environments is needed and this can be facilitated by the creation of a Spatial Data Infrastructure (SDI) on a seamless platform. There is a growing and urgent need to create a seamless SDI model that bridges the gap between the terrestrial and marine environments, creating a spatially en...