.net pdf 417

.net pdf 417

.net pdf 417

.net pdf 417

.net pdf 417

.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,
.net pdf 417,

that the ease with which you can use a Selector or a Tachometer, and its dynamic and robust displays separate the Xcelsius from WAD functionality This component is very user friendly and is positioned to be used by the business users as well as the power users to develop the dashboards on the fly As you can see, there is plenty to review and discuss when it comes to the configuration using Xcelsius, but for this general introduction, we are going to look at some of the possible results that you can achieve with Xcelsius Also keep in mind that configuring an interactive what if statement is much easier in Xcelsius than using the WAD and Integrated Planning (IP), and can be accomplished by the business user rather than the BW IT department All the features that are available in the other components are also available via Xcelsius, such as live data connectivity to KPIs, the ability to leverage the Excel modeling component (as shown in the preceding illustration, the worksheet can be an Excel worksheet), and, once you develop the dashboard, the ability to embed a dashboard into any Microsoft Office application, including PowerPoint presentations You can display the developed dashboard via a portal, whether a BI portal or a corporate portal, and integrate SAP and non-SAP data into one dashboard The integration of the SAP and non-SAP data still requires IT department assistance in most cases, but the integration of the data is much easier to work with and complete When you are in the process of deploying Xcelsius for the enterprise, other considerations need to be taken into account in addition to all the guidance for OLAP universes and Web Intelligence This is due to the fact that the OLAP universe is predominantly used as the backend for Xcelsius dashboards via the Query as a Web Service (QaaWS) component With Xcelsius, you need to use specific best practices to ensure they do not overload the Flash engine (component that allows the Xcelsius to function with dynamic displays and interactive activities), thus jeopardizing a fast response time for the live dashboards End users of dashboard applications typically have little patience for poorly performing dashboards, so it is critical that you bear in mind the following best practices: Make sure that you pull in only the data that you absolutely need and must display in the dashboard Xcelsius dashboards run within the Flash engine inside the browser, which is not designed for aggregating data, performing large mathematical calculations, or processing large data sets that require a large amount of memory The guideline for data volume is to try to keep your data set ideally to 500 rows, 5,000 rows maximum To guarantee fast response times, you may need to create highly specific BEx queries to base the universes on, and keep the universes small; or at the very least, keep the number of key figures low to increase query performance Be smart in how queries are initiated If the dashboard has multiple tabs, try to pull in data for subsequent tabs only when those tabs are accessed Running all the queries on initial load can delay the moment the dashboard first displays, which may be longer than an end user is willing to wait Splitting the queries up between tabs can make the dashboard far more responsive Push aggregation down to BW This is a proven and industry-standard strategy to keep the data sets small and make queries run fast Expectations around the response of dashboards are very different from refreshing operational reports.

tions at the base of the brain may produce bruits heard posteriorly in the neck The duration and quality of the bruit are relevant bruits that extend into diastole and are high-pitched are almost invariably associated with a tight stenosis (lumen l5 mm) An additional though infrequent sign of carotid occlusion is the presence of a bruit over the opposite carotid artery, heard best by placing the bell of the stethoscope over the eyeball (ocular bruit) As pointed out by Pessin and colleagues (1983), this murmur is often due to augmented circulation through the patent vessel but there are as many instances in our experience when a bruit over the eye instead re ects a stenosis in the intracranial portion of the carotid artery on

.

that side Pulsation may be palpably reduced or absent in the common carotid artery in the neck, in the external carotid artery in front of the ear, and in the internal carotid artery in the lateral wall of the pharynx, but these are among the least dependable signs of carotid disease and too vigorous compression risks dislodging plaque material Also, in the presence of a unilateral internal carotid occlusion, compression of the normal common carotid should be avoided because it may precipitate neurologic symptoms Central retinal artery pressure is reduced on the side of a carotid occlusion or severe stenosis; this can be appreciated by gentle pressure on the globe while viewing the vessels emanating from the optic nerve head A diastolic retinal pressure (determined by ophthalmic dynamometry) of less than 20 mmHg usually means that the common or internal carotid artery is occluded These and other tests for assessing carotid ow have been largely supplanted by ultrasound insonation and MRI imaging of the carotid artery, but retinal examination remains highly valuable in that it may demonstrate emboli within retinal arteries, either shiny white or reddish in appearance; this is another important sign of carotid disease (crystalline cholesterol is sloughed from an atheromatous ulcer) Additional signs of carotid occlusion include pulseless arms (as in Takayasu disease, see page 732); faintness on arising from the horizontal position or recurrent loss of consciousness when walking; headache and sometimes ocular, retro-orbital, and neck pain; transient blindness, either unilateral or bilateral; unilateral visual loss or dimness of vision with exercise, after exposure to bright light, or on assuming an upright position; retinal atrophy and pigmentation; atrophy of the iris; heterochromia of the iris (differing coloration on the two sides is a sign of carotid occlusion early in life); leukomas (corneal scars); peripapillary arteriovenous anastomoses in the retinae; optic atrophy; and claudication of jaw muscles The cardinal clinical sign of stenoses, ulcerations, and dissections of the internal carotid artery near its origin from the common carotid artery are TIAs It is a subject of debate whether these are the result of brin platelet emboli or a reduction in blood ow TIAs are discussed further on, but here it can be stated that TIAs and severe stenosis of the vessel represents an important risk factor for stroke.

.

265

9: