Your conclusion should do much more than simply tell your listeners that your presentation is over.
It would be smarter, from an architectural point of view, to have a separate listing of actors with unique IDs to which you could link.
Familiar examples are the img and br elements in HTML. Remember that in XML all opening tags must be matched by a closing tag. For empty elements, you can use a single empty-element tag to replace this: Entities I mentioned entities earlier.
An entity is a handy construct that, at its simplest, allows you to define special characters for insertion into your documents. XML, true to its extensible nature, allows you to create your own entities.
More than Structure… XML documents are more then just a sequence of elements. The documents are really a hierarchy of nested objects.
This feature, combined with all that content encapsulated in opening and closing tags, takes all XML documents far past the realm of mere data and into the revered halls of information. Data can comprise a string of characters or numbers, such as But the only way to turn this data into information and therefore make it useful is to add context to it — once you have context, you can be sure about what the data represents.
When you take into account the second point — that an XML document is really a hierarchy of objects — all sorts of possibilities open up. Remember what we discussed before — that, in an XML document, one element contains all the others?
Well, that root element becomes the root of our hierarchical tree. You can think of that tree as a family tree, with the root element having various children in this case, product elementsand each of those having various children name, description, and so on.
In turn, each product element has various siblings other product elements and a parent the rootas shown in Figure 1. The logical structure of an XML document.
Because what we have is a tree, we should be able to travel up and down it, and from side to side, with relative ease. Before, we talked about transforming data into information by adding context. Formatting Issues Earlier in this chapter, I made a point about XML allowing you to separate information from presentation.
For example, if you stored your information in a word processing program, it would contain all kinds of information about the way it should appear on the printed page — lots of bolding, font sizes, and tables.
Unfortunately, if that document also had to be posted to the Web as an HTML document, someone would have to convert it either manually or via softwareclean it up, and test it. If yet another person wanted to take the same information and use it in a slide presentation, they might run the risk of using outdated information from the HTML version.
As you can see, it can get pretty messy! If you made changes to the XML file, the other files would also change automatically once you passed the XML file through the process. This notion, by the way, is an essential component of single-sourcing — i.
As you can see, separating information from presentation makes your XML documents reusable, and can save hassles and headaches in environments in which a lot of information needs to be stored, processed, handled, and exchanged.
That means the publisher can generate sample PDFs for its Website, make print-ready files for the printer, and potentially create ebooks in the future.
All formats will be generated from the same source, and all will be created using different style sheets to process the base XML files. One of the most powerful advantages of XML, of course, is that it allows you to define your own language.
However, this most powerful feature also exposes a great weakness of XML. If all of us start defining our own languages, we run the risk of being unable to understand anything anyone else says. An XML document must contain a single root element that contains all other elements.
All elements must be properly nested. All attribute values must be quoted. A valid document, then, is nothing more then a well-formed document that adheres to its DTD.Introduction: In countries with broad access to effective antiretroviral therapy (ART), the clinical benefits have been dramatic.
Far fewer people are progressing to AIDS, hospital AIDS wards have practically emptied, and the age-adjusted death rate from HIV/AIDS has declined by more than 70%.() Adherence to ART has emerged as both the major determinant and the Achilles' heel of this success.
Two important terms in drug development are “pharmacokinetics” (PK) and “pharmacodynamics” (PD). Developed & Conducted by the Division of Pharmacy Professional Development, School of Pharmacy, University of Wisconsin-Madison.
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Pain Management, Part of Normal Healing Process, Classifications of Pain, Chronic Pain, Chronic Non Malignant Pain, Major Sources of Pain, Opioid, Dynorphins, . The primary goal is to bring together researchers, clinicians and industry working in the field of digital pathology, to present and discuss science, implementation of digital techniques and the latest advances in the field. I bought this for my daughter (7) to go along with her new microscope and slide set. Although we haven't tried most of the suggestions, we did flip through it and it's a great book. It gives enough detail to be valuable for years to come but not so much detail to be overwhelming to a ashio-midori.coms:
It is a valuable tool in providing effective and consistent presentations across the organization on-demand. Fragrances today are mostly a fusion of ingredients taken from nature – or inspired by nature – together with the synthetics (man-made ingredients) that are used to make them last longer, ‘carry further’, or stay ‘true’, when worn on the skin.