Trumpet - sort of. Trombone - absolutely not.

The reason is that with a trumpet you have 8 possible fingerings, and for each there is a limited number of tones from which to choose by lip pressure. As a beginner you will only need the lower tones, which are spaced so far apart that it's extremely hard to hit the wrong one without noticing. Only getting a clean intonation might be tricky for you because it involves having precisely the right amount of lip pressure to get the intended result - so you have to hear whether the intonation is right. (I don't think this is a big issue with the guitar once it has been tuned.)

With the trombone, instead of fingering you'd have to find exactly the right spot on a continuous scale. That's harder than hitting the right tone when singing. Of course if you have a musical ear and there is merely something wrong with your vocal cords, then this is not an issue either. (In that case the comb, the kazoo and the didgeridoo are the only instruments I can think of right now that would be problematic.)

Is the particular skill of singing the melody correctly necessary to be able to play the trumpet?
Call it stupidity or bad luck but I am guilty of submitting my research article to a journal which is listed in Beall's List of Predatory Publishers.

It is my first article and I don't have much experience publishing articles. I was searching for a top impact factor journal and found this one on Google and in excitement sent my article (word and pdf files) in this journal a few days ago, only to discover later that this might be a bogus journal.

Now I am worried about that what will happen to my article. What if they plagiarize my paper, or send it to another journal not giving me credit? 

My question is that what should I do now? Should I send my article to a reputable journal now? What should be the process? What if it is flagged for fraud by that journal? What are my options?

Any help would be appreciated.
