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Welcome to HemoSurf! - Minimal system requirements Installation of Netscape Communicator 4.7 and QuickTime™ 5 User’s guide Target audience Legal aspects Using HemoSurf in an Intranet The interpretation of blood films The quality of blood films Using the normal values of your lab Color display of computer monitors Variability of web browsers How to handle error messages Special thanks Authors and contributors Address Minimal system requirements PC: Windows® 95/98/NT4.x/2000 Mac: OS 7.6.1, PowerPC CD-ROM drive 2x SVGA, 800 x 600 resolution 16-bit color display (32 000 colors) A 4th generation web browser; Netscape 4.7 recommended (installation program included on CD-ROM) Optional: QuickTime™, sound card with speakers (only Windows®) Internet connection not necessary Installation of Netscape Communicator 4.7 and QuickTime™ 5 You will find the installation programs for Netscape Communicator 4.7 and QuickTime™ 5 on the CD-ROM. If you do not have a web browser installed, or if you encounter difficulties using a web browser other than Netscape Communicator 4.7, install Netscape Communicator 4.7 from the CD-ROM. During setup you will receive instructions on how to proceed. To view the movies on how to create and stain blood films, you will need to have QuickTime™ installed. Make sure that the QuickTime™ Plugin is in the Plugins folder of your web browser. The installation program will copy these software components to the right place. The QuickTime Player in the newly created QuickTime Folder allows you to watch the movies separately, without a web browser. User’s guide To use HemoSurf, you must first open a web browser (Netscape Communicator/Navigator 4.0.6 or higher or Microsoft Internet Explorer 4.x or higher). Choose from within the "File" menu the command "open/open file/open page/open page in Navigator". In the dialog box, browse for the CD-ROM "HemoSurf" and select the file "english.htm". Click "open". If your web browser uses the default preferences, text with links will appear in blue and will be underlined. Clicking on these words will bring up other pages or open new windows. There is a blue arrow that is always located on the right. Clicking on it will cause you to jump to the top of the page or to a page one step up in the hierarchy of the program. Additional explanations are given on the page if needed. Note! Your web browser must have JavaScript enabled and allow the writing of cookies. These should already be your default settings. Target audience Medical students of laboratory technology schools, laboratory technicians, residents in hematology, medical doctors in private practice with or without a lab. Legal aspects All images are provided for educational use only and may not be used outside of the learning program without the permission of the authors. The demonstration of the learning program for other than instructional purposes is not allowed. Nor is duplication and/or distribution. The learning program may only be used on one workstation. For Intranet use, a special license must be purchased from the Division for Instructional Media. Using HemoSurf in an Intranet An Intranet license can be purchased from the Division for Instructional Media. It costs CHF 250.00 (Swiss franks) and includes a description on how to configure your Intranet server. Additionally, you have the option of replacing the normal values from your laboratory with those used by HemoSurf. (See below) The interpretation of blood films It is almost impossible for a group of hematologists to agree fully on the classification of individual cells. This must not be a disadvantage. Such disagreements can lead to discussions that are very instructive for students. Some of these discrepancies can be due to technical problems that are discussed below. The quality of blood films When selecting and photographing blood films for a learning program, you become aware that many blood films done on a routine basis are not perfectly prepared. Often it is just impossible to prepare perfect blood films from the blood of patients with hematological diseases. When selecting the blood films for this program, we chose those that most clearly demonstrated the abnormality in question. Using the normal values of your lab When using HemoSurf on an Intranet (see above) or from a hard disk, you can replace the normal values of the program with your own normal values. The normal values are stored in the file normal_values.js residing in the folder Data/scripts. The used variable names are easy to understand and may not be altered. Replace the numbers between the quotation marks. The quotation marks may not be removed and must always exist in pairs. Note! The normal values are always linked to given units. A modification of the used units is possible in principle, but much more difficult. Therefore, changing the units is not advised. Note! If your normal values differ much from those of HemoSurf, it is possible that normal results in one of the cases may become pathological or vice versa Color display of computer monitors While it is possible to control for the correct display of colors in printing, this is almost impossible for computer monitors. As a consequence, depending on brightness and hue, some cells may look different and are attributed to another cell type. Therefore, try to optimize the color display of your monitor or test different monitors, if you have the opportunity. Over all, the quality of the images is good to very good. Variability of web browsers The competition between Netscape and Microsoft to produce the most popular web browser has many disadvantages for web authors. The interactivity of HemoSurf is based on JavaScript. The different interpretation of this programming language by the Web browsers of these two companies forces the developer to make compromises or to write separate code for each browser. Taking this into consideration, I made the program as compatible with both browsers as I could. But at a certain point, further concessions became impossible. Since the web browser of Netscape can be distributed without any obligations, I decided that HemoSurf should comply with the standards of Netscape 4.7. Most modules of this learning program can be used with Internet Explorer 4.0, 4.5, or 5.0 from Microsoft. But it is possible that some modules do not function properly or are badly displayed. How to handle error messages If you change the size of the browser window within a learning module, you may get error messages. In this case start the module over again. Adjust the window size immediately after opening HemoSurf. The error message in Internet Explorer may ask you if you want to continue to run scripts. Click "Yes". Otherwise the interactivity of HemoSurf will be lost. Please send error messages to me by email. I will try to find out what is causing them. If I find a solution to the problem, I will send you the corrected files for replacement, if you have HemoSurf copied on your hard disk. To solve any problems, I need the following data: - Description of the error: Where does it appear? What does it look like? Exact text of an error message. Can the error be reproduced? - Which web browser are you using? Name and version. - Which operating system are you using? Name and version. Special thanks to R. Köchli, Head of the School for Medical Laboratory Technicians, who provided us with the technical equipment to capture the microscopic images. Authors and contributors Authors: Dr. med. U. Woermann (1) Prof. Dr. med. A. Tobler (2) M. Montandon (3) HemoSurf Logo: B. Boog (1) Video: G. Ferrieri (1) English version: G. Rodgers (4), MD, PhD K. Mauger (5), MA, PhD candidate and Teaching Fellow 1 Division of Instructional Media AUM, Institute for Medical Education IAWF, University of Bern 2 Central Hematological Laboratory, University Hospital, Inselspital Bern 3 Head Laboratory Assistant, University Hospital, Inselspital Bern 4 University of Utah Health Sciences, Salt Lake City, Utah 5 University of Utah Language and Literature Department, Salt Lake City, Utah © Copyright 2002 AUM Bern University of Bern Division for Instructional Media AUM Inselspital 38, 3010 Bern, Switzerland Tel. +41 31 632 25 15 Fax +41 31 632 49 98 Email: [email protected] Bern in February 2002 Dr. med. U. Woermann Division for Instructional Media AUM Inselspital 38 CH-3010 Bern [email protected]