Cassetta degli attrezzi: Scholar Google

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Scholar Google è il motore di ricerca prodotto da Google per venire incontro alle esigenze di ricerca della comunità scientifica. Non è un motore di ricerca generalista come Google, ma va a ricercare esclusivamente nella scholarly literature cioè tra gli articoli sicentifici peer review, tra i libri, le tesi, gli archivi di preprint

Insomma, se per le tue ricerche bibliografiche vuoi usare il web, questo è uno strumento valido (prova anche Scirus della Elsevier)

Impariamo a conoscere meglio Scholar Google per usarne tutte le potenzialità.

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Ecco come si presentano i risultati di una ricerca in Scholar Google:

  1. La prima riga ti porta all’abstract o al full text dell’articolo (se disponibile liberamente in rete)
  2. Cited by: quante citazioni ha ricevuto l’articolo (è un indicatore importante della diffusione e del peso dell’articolo nella comunità scientifica)
  3. Library Links (online): ti serve per verificare se la tua biblioteca ha il full text dell’articolo. er gli utenti di Politecnico: se non torvate automaticamente la dicitura SFX – FullText – bisogna impostare questa funzione su: Scholar preferences (a dx del box di ricerca); Library Links; scegliere Politecnico di Milano – Italy- (SFX – FullText)
  4. Library Links (offline): localizza le biblioteche che posseggono copia cartacea dell’articolo
  5. Group of: segnala articoli collegati al nostro o meglio versioni precedenti dell’articolo, preprint, post print, draft…
  6. Ricerca le informazioni sull’articolo in Google
  7. BL Direct: puoi chiedere l’articolo attraverso un document delivery a pagamento alla British Library di Londra. Attenzione, verifica sempre prima con la tua biblioteca se non è possibile trovare l’articolo attraverso il document delivery

  • Lo sai che Google Scholar permette l’esportazione diretta dei risultati in molti gestori di bibliografie tra cui Refworks? Per saperne di più clicca qui
  • Usa una modalità di ricerca avanzata.
  1. Cerchi un autore specifico? Author search is one of the most effective ways to find a specific paper. If you know who wrote the paper you’re looking for, you can simply add their last name to your search terms. For example:
    The search [friedman regression] returns papers on the subject of regression written by people named Friedman. If you want to search on an author’s full name, or last name and initials, enter the name in quotes: [“jh friedman”].
    When a word is both a person’s name and a common noun, you might want to use the “author:” operator. This operator only affects the search term that immediately follows it, and there must be no space between “author:” and your search term. For example:
    [author:flowers] returns papers written by people with the name Flowers, whereas [flowers -author:flowers] returns papers about flowers, and ignores papers written by people with the name Flowers (a minus in front of a search term excludes results that contain this search term).

    You may use the operator with an author’s full name in quotes to further refine your search. Try to use initials rather than full first names, because some sources indexed in Google Scholar only provide the initials.

    For example:
    To find papers by Donald E. Knuth, you could try [author:”d knuth”], [author:”de knuth”], or [author:”donald e knuth”].

  2. cerchi un periodo preciso? A publication-restricted search only returns results with specific words from a specific publication. For example:
    If you want to search the Journal of Finance for articles about mutual funds, you might start like this:

     

    Keep in mind, however, that publication-restricted searches may be incomplete. Google Scholar gathers bibliographical data from many sources, including automatically extracting it from text and citations. This information may be incomplete or even incorrect; many preprints, for instance, don’t say where (or even whether) the article was ultimately published.

    In general, publication-restricted searches are effective if you’re certain of what you’re looking for, but they‘re often narrower than you might expect.

    For instance:
    You might find that a search across all publications for [mutual funds] gives more useful results than a more specific search for “funds” only in the Journal of Finance.

    Finally, bear in mind that one journal can be spelled several ways (e.g., Journal of Biological Chemistry is often abbreviated as J Biol Chem), so you may need to try several spellings of a given publication in order to get complete search results.

    Date restrict

    (This option is only available on the Advanced Scholar Search page.)

    Date-restricted searches can be effective when you’re looking for the latest developments in a given area.

    For example:
    Here’s how you’d search for articles on superconducting films that were published since 2004:

     

    Bear in mind, however, that some web sources don’t include publication dates, and a date-restricted search will not return articles for which Google Scholar was unable to determine a date of publication. So if you’re sure that an article about superconducting films came out this year and a date-restricted search doesn’t find it, retry the search without the date restriction.
  3. Usa alcuni trucchetti per migliorare la pertinenza della tua ricerca; per esempio:

  • the “+” operator makes sure your results include common words, letters or numbers that Google’s search technology generally ignores, as in [+de knuth];
  • the “-” operator excludes all results that include this search term, as in [flowers -author:flowers];
  • phrase search only returns results that include this exact phrase, as in [“as you like it”];
  • the “OR” operator returns results that include either of your search terms, as in [stock call OR put];
  • the “intitle:” operator as in [intitle:mars] only returns results that include your search term in the document’s title.


[via: Google Librarian Center, traduzione e adattamento nostri]

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