This title provides a description of the taxa and viruses approved by the ICTV between 1970 and 1999.
This title describes the taxa and viruses approved by the ICTV between 1970 and 1999. Descriptions of the most important characteristics of these taxa are provided, together with a list of species, tentative species and selected references. A glossary of abbreviations and terms is provided together with a visual hyperlinked Virosphere and listings of the taxa by type of nucleic acid and size of the genome. The names of orders, families, subfamilies, genera and species approved by the ICTV are displayed in italics. Names that have not yet been approved are displayed in quotation marks in roman font. Tentative species names, strain, serotype, genotype and isolate names are printed in roman font. Three categories of viruses of the various taxa have been defined: type species, other species and tentative species.
The main navigation routes into the material are shown in the Contents List in uppercase.
Your first point of reference will probably be the Contents list. While browsing through Virus Taxonomy, you can view the Contents list in the frame to the left of the main window. Click the arrow icons to expand the Contents list. By clicking the arrow icon for 'DESCRIPTION OF VIRUSES' you will be presented with a list of articles. Select the arrow icon for one particular article and you can view its main headings. When you are ready to browse an article or a heading, simply click the text link next to the arrow icon. To assist you in identifying your location within the Virus Taxonomy title, a running headline indicates the current entry. You may click the text links in the running headline to navigate in the current entry, for example, use the link provided to return to the start of the article.
Two indexes are provided: an index of families/genera and an index of viruses. Click the links in the Contents List to access these sections. Browse these sections to identify key words for your text searches in Virus Taxonomy.
Within the text, you will see hyperlinks to figures and tables. If you click on one of these, you will remain where you are in the main body of the text, and a small window will pop up, containing the figure/table and legend. You can move this popup window around the screen by clicking on the titlebar of the window and dragging it to a new position, and also resize it. You can also flick between the text pane and the popup window by holding down the ALT key and then pressing the TAB key once then releasing both.
The toolbar in the top frame offers access to both a simple search and an advanced search interface.
If you want to carry out a simple text search, you may enter your search term(s) into the Search box located on the toolbar. The search will then be conducted on the full text of Virus Taxonomy, and will be ranked by relevance.
In order to carry out an advanced search, click the ADVANCED SEARCH button on the toolbar. You will see the search interface which allows you to search within three fields, and choose whether you carry out a Boolean search (in which case your search results are ordered in the order in which they appear in the contents list), or whether your search results are ranked by relevance.
Searching using Boolean Operators
To use Boolean searching, please ensure that you click the 'Boolean' radio button before submitting your search. You can use operators and modifiers to apply logic to your search query and pinpoint the exact information you are interested in finding. Popular operators are AND and OR, and NOT is the main modifier. The AND operator selects documents that contain ALL of the search elements you specify. For example, the search 'cassava mosaic' will only result in a hitlist of those articles which contain BOTH the terms cassava and mosaic. The OR operator selects documents that contain at least one of your search elements. For example, the search 'cassava or mosaic' will result in a hitlist of those articles which contain either cassava, or mosaic, or both. The NOT modifier can be used to exclude information from a search. For example the search 'cassava not mosaic' will return hits of articles that contain the word cassava, but not if they also contain the word mosaic.
When using the 'Ranked' search option, any character string may be truncated using wildcards, e.g., BIOCHEM*. The characters ? and * can be used. You can use ? to represent individual variable characters within a string, and * to match multiple characters within a string. This allows you to broaden a search. Within a character string, ? is used as the wild card for a single character, e.g., CON?OY . Thus electro* finds articles containing electro, electron, electronic, electromagnetic, etc. You can use * to invoke truncation anywhere within the expression. Numbers (including decimal points and negatives) can be searched for. To retrieve alternate spellings or multiple forms of a word, use the wildcards.
You will see that there are several text input boxes on the search screen. You can limit your search to article titles (and subheadings) or authors. If you are carrying out a Boolean search, (i.e., you have clicked the Boolean radio button, and enter search terms in more than one field, the search terms will be treated as an AND query. For instance, if you enter the word 'cassava' in the title box, and the word 'mosaic' in the full text, you will be returned only results in which the word cassava appears in the title and mosaic in the main text of the article.
When you submit your query, the results will be returned in the form of a hitlist. Depending on the type of search you chose (Boolean or Ranked), the results will be sorted according to order that they appear in the contents list or relevance, respectively. Click on the text of the link itself to be taken directly to the relevant paragraph of text, in the context of its parent article. Once there, you will see that occurrences of your search terms are highlighted in the text. These highlights will remain on the text until you click the cancel search button on the toolbar. Once you have followed a link to a particular hit, you can skip forward or backwards in the text to the next or previous hit by using the NEXT HIT and PREV HIT buttons. If you want to return to your original hitlist, click the RESULTS button on the toolbar. To clear the search and lose all highlighting of your search terms, click the CANCEL SEARCH button on the toolbar.
You may use your browser print functions to print out sections of an article as you view them on-screen. N.B. Some tables are too wide to fit on to a sheet of A4 paper. To print these tables, jump to the table gallery from the article contents section at the beginning of the article, click on the article frame once, then chose FILE, PRINT from the file menu of your browser, and change the page settings from portrait to landscape.
Citing Articles using the Digital Object Identifier (DOI)
At the top of each article, under the title, you will see a string that looks like this: doi: 10.1006/bkvt.2000.0018. The DOI is a unique and, most importantly, persistent identifier for each article. This means that you can cite any online article by using its DOI. To find out more about using DOIs to cite articles, and AP's pioneering work with the standard, visit http://www.apnet.com/doi/.
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