In order to gain a deeper understanding of social media, we analyzed relevant abstracts that were downloaded from the Web of Science (WOS) database. Our search termsFootnote 1 yielded a total of 13,177 records, out of which 12,597 unique abstracts were obtained. The analysis of these records was undertaken in two steps. First, we used VOSviewer (Van Eck and Waltman 2011) to perform a co-citation analysis of first authors in the downloaded corpus. VOSviewer allows visualization of similarities in publications and authors through an examination of bibliometric networks. Furthermore, we used VOSviewer to analyze words derived from titles and abstracts. Second, we used Latent Dirichlet Allocation (LDA) (see Blei 2012) to extract key thematic areas latent in the literature on social media. Further details about these analyses and results are presented in section 3.
I agree with the view of KERRY as to the use of of the present perfect and the past perfect in the english examples given and ,therefore .Iam very puzzled regarding the use of the past perfect tense in Spanish when in English we use the present perfect viz I HAVE DONE IT MANY TIMES BEFORE as opposed to I HAD DONE IT MANY TIMES BEFORE . If the correct translation in Spanish of I HAVE DONE IT MANY TIMES BEFORE is the perfect tense (había hecho) when in Spanish do you use the present tense (Ha o He hecho) ?
The Subjunctive Present Perfect is used to describe past actions or events that are still connected to the present day and to speak about an action that will have happened by a certain time in the future. For example, "haya visto", meaning "I have seen".
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With apps like BetaSeries, Cineast, and JustWatch, you can track down information on past classics, current must-watches, and even upcoming movies and shows. Never stream alone again. These apps serve as great companions to your favorite streaming services; check them out below.
Available on iOS(Opens in a new window), Android(Opens in a new window), and the web(Opens in a new window), BetaSeries lets you keep track of TV shows and movies so you know when and where to watch your favorite ones. It can also help you discover new ones to add to your bucket list. You start by adding the shows you want to track, and the app presents a long list of current and past TV series you can follow.
If you add past, current, and future movies to the watchlist, the app will inform you when and where they're accessible. With a free account, you can track the most popular TV shows and films, receive notifications about shows and films you want to see, and find out if you know anyone who uses BetaSeries. You can even synchronize the episodes and movies you watch via Netflix.
Here's another app that serves up access to a galaxy of TV shows and movies. Designed just for iOS(Opens in a new window), Action! TV & Movies Tracker covers TV series and motion pictures from the past, present, and future.
Several movie apps grab their information from an online database known as The Movie DB(Opens in a new window), and Cineast does a great job of serving up all that data in a friendly and effective way. Available only for iOS(Opens in a new window), the app will run you 99 cents. Using the main Discover screen, you can browse through movies based on most popular, now playing, upcoming, and top rated. You can also search for any motion picture from the early 20th century to present day. 2b1af7f3a8