新功能！私密瀏覽
測試版
The final Boolean operator NOT allows you to exclude concepts not relevant to your search. For example, you could search multi-infarct dementia by using Dementia NOT Alzheimer's . But be careful using this because you would eliminate records discussing both types of dementia, as all articles discussing Alzheimer's are eliminated.
已複製 
查看快取版本
您的搜尋與此結果
- 該 搜尋詞 出現在結果中: boolean operators search examples
- 該網站符合您的其中一個或多個搜尋詞
- 其他包含您的搜尋詞的網站鏈接到此結果
- 結果的語言是 中文 (台灣)
新功能！私密瀏覽
測試版Boolean searching (named after George Boole) is used by most databases to focus searches. Examples of each term and search strategy are given below. A few tips to start: Three Boolean operators are recognized by most databases: AND, OR, and NOT The ...
已複製
查看快取版本
您的搜尋與此結果
- 該 搜尋詞 出現在結果中: boolean operators search examples
- 該網站符合您的其中一個或多個搜尋詞
- 其他包含您的搜尋詞的網站鏈接到此結果
- 結果的語言是 中文 (台灣)
新功能！私密瀏覽
測試版Using these operators, you are able to focus your search on the results that will be most helpful. Google also has a few additional operators that work to refine results. Below are common boolean operators that work when searching within Google and Google Scholar, as well as an example of each.
已複製
查看快取版本
您的搜尋與此結果
- 該 搜尋詞 出現在結果中: boolean operators search examples
- 該網站符合您的其中一個或多個搜尋詞
- 其他包含您的搜尋詞的網站鏈接到此結果
- 結果的語言是 中文 (台灣)
新功能！私密瀏覽
測試版Boolean operators are the words and symbols used to narrow or expand a search on a database. Examples of Boolean operators include “AND,” “OR,” and “NOT.” A Boolean search is therefore a search that uses Boolean operators. Boolean operators are used
已複製
查看快取版本
您的搜尋與此結果
- 該 搜尋詞 出現在結果中: boolean operators search examples
- 該網站符合您的其中一個或多個搜尋詞
- 其他包含您的搜尋詞的網站鏈接到此結果
- 結果的語言是 中文 (台灣)
新功能！私密瀏覽
測試版Boolean Operators To search multiple keywords at once, you need to use connector terms, also called Boolean Operators.Using a Boolean Operator will tell the database to connect the terms together in your search. There are three Boolean Operators: AND: All keywords must appear in your results.
已複製
查看快取版本
您的搜尋與此結果
- 該 搜尋詞 出現在結果中: boolean operators search examples
- 該網站符合您的其中一個或多個搜尋詞
- 其他包含您的搜尋詞的網站鏈接到此結果
- 結果的語言是 中文 (台灣)
新功能！私密瀏覽
測試版Boolean search strings are combinations of Boolean operators and search keywords. They can benefit people who find candidates for open positions, including recruiters, human resources representatives and managers, because formulating a search string with Boolean operators can make it easy to source resumes for specific job candidates.
已複製
查看快取版本
您的搜尋與此結果
- 該 搜尋詞 出現在結果中: boolean operators search examples
- 該網站符合您的其中一個或多個搜尋詞
- 其他包含您的搜尋詞的網站鏈接到此結果
- 結果的語言是 中文 (台灣)
新功能！私密瀏覽
測試版Boolean Operators Explained Now let's go into a little more detail about each operator. "Quotation Marks" Quotation marks tell the database to take the phrase as a whole, and search for the words together, and in order. Example: Searching wild geese: Without ...
已複製
查看快取版本
您的搜尋與此結果
- 該 搜尋詞 出現在結果中: boolean operators search examples
- 該網站符合您的其中一個或多個搜尋詞
- 其他包含您的搜尋詞的網站鏈接到此結果
- 結果的語言是 中文 (台灣)
新功能！私密瀏覽
測試版Boolean operators (AND, OR, NOT) allow you to form compound searches by combining two or more terms together. Parentheses also allow you to group terms together. AND narrows a search by finding records that must contain all the terms you have entered.
已複製
查看快取版本
您的搜尋與此結果
- 該 搜尋詞 出現在結果中: boolean operators search examples
- 該網站符合您的其中一個或多個搜尋詞
- 其他包含您的搜尋詞的網站鏈接到此結果
- 結果的語言是 中文 (台灣)
Some databases allow you to enter search terms on separate lines (e.g., enter a keyword the top line and researcher or activist's last name below, so as to articulate your search request) Using Boolean Operators (AND, OR, NOT) and Boolean Modifiers (quotation marks, asterisk, parentheses) allows you to widen or narrow the search for your keywords and target your research topic:
已複製
查看快取版本
您的搜尋與此結果
- 該 搜尋詞 出現在結果中: boolean operators search examples
- 該網站符合您的其中一個或多個搜尋詞
- 其他包含您的搜尋詞的網站鏈接到此結果
- 結果的語言是 中文 (台灣)
新功能！私密瀏覽
測試版It is feasible that you may have such a complex search to perform that you might require the use of all six of the Boolean operators to get optimal search results. For example, let us say that you are looking for medicines or other medical interventions for seizure disorders other than epilepsy .
已複製
查看快取版本
您的搜尋與此結果
- 該 搜尋詞 出現在結果中: boolean operators search examples
- 該網站符合您的其中一個或多個搜尋詞
- 其他包含您的搜尋詞的網站鏈接到此結果
- 結果的語言是 中文 (台灣)
