a 45- year old man with a history of aortic valve replacement presented with acute chest pain which was diagnosed to be anterior wall myocardial infarction. he received thrombolytic therapy with streptokinase. echocardiography and fluoroscopy showed normally functioning ball and cage aortic prosthesis. coronary arteriography showed globular filling defect in midportion of left anterior descendi...

Within an increasing number of domains an important emerging need is the ability for technically naı̈ve users to compose computational elements into novel configurations. Examples include astronomers who create new analysis pipelines to process telescopic data, intelligence analysts who must process diverse sources of unstructured text to discover socio-technical trends, and medical researchers ...

Knowledge and information workers work as individuals within virtual team structures. Those teams may be small, or they may in fact form part of larger groups which continue to share similar objectives. Knowledge workers therefore acquire and manage personal and group information which they may choose to manage themselves using Personal and small-Group Information Management tools and technique...

The back-end tools of a data warehouse are pieces of software responsible for the extraction of data from several sources, their cleansing, customization, and insertion into a data warehouse. They are known under the general term extraction, transformation and loading (ETL) tools. In all the phases of an ETL process (extraction and exportation, transformation and cleaning, and loading), individ...

Our research focuses on developing interactive technologies for a broad range of end-user programming activities, including code construction, verification, debugging, and understanding. A common goal among all of these technologies is to identify core ideas that can be used across a variety of domains and programmer populations. INTRODUCTION Although end-user programmers’ interests vary widely...

At present, for micro-textured tools, the determination of micro-texture placement area depends on derivation cutting geometric model. The distribution form applies methods, and research methods accuracy are limited. Therefore, in this paper, ball-end milling cutter is taken as object. Based fractal theory, morphology tool before after wear compared to determine tool–chip contact area. uniform-...