This is an interesting question. In your case, I'd actually contact the corresponding author. They are responsible for their work and should revise or restate erroneous parts in it.

I would not make it public (by writing another article, for example), before you have given them a chance to correct mistakes by themselves. Only if they have not been responsive within a period of time, you might write to the editor or publish a response in the same journal. You should consider, though, that you may not make many friends by publishing anti-articles about minor errors. And, in the end it might turn out that your view on the publication is not correct.

This is an interesting question. In your case, I'd actually contact the corresponding author. They are responsible for their work and should revise or restate erroneous parts in it.

I would not make it public (by writing another article, for example), before you have given them a chance to correct mistakes by themselves. Only if they have not been responsive within a period of time, you might write to the editor or publish a response in the same journal. You should consider, though, that you may not make many friends by publishing anti-articles about minor errors. And, in the end it might turn out that your view on the publication is not correct.

sir can u send some details on re entry parameters

It is better to contact with corresponding author mentioning the errors. If they dont respond and you think that these are v.important and need to be corrected in any case, you can write a letter to the Editor.

in this case, you can:

1) contact to corresponding author and inform him/her about this problem. please give him/her this opportunity to correct these errors.

2) submit a short paper (even one page) to that journal about this mistake. you can view an example in the following link:

http://www.sciencedirect.com.scopeesprx.elsevier.com/science/article/pii/S0142061511000949

In this case, it is well known that if there is any comment on the published article, the simplest and correct way to write to the editor in chief (or editorial board of the journal) as a letter to the editor including the comments on the published article, then the editorin chief will forward your comment to the author asking him to repl on the comment and, both comments are published in the next issue. explaining the comments arised by the readers.

I perfectly agree with the earlier respondents. Contact the authors of the article and state your comments. They might be coming from a different angle. In any case that is what makes research interesting.

If you observed a theoretical issue, rather than a technical error, after consulting other peers, you may ask for an Erratum from, or submit a Short Technical Note (or even an Extended Technical Note), with your rectification, to the Editor-in-chief of the concerned journal. As Dr Sherif proposed, it can also be a Letter to editors.

I would like to thank you all for your answers.

And based upon majority of responses, I am now writing to the corresponding author and hope he will respond positively towards erratum otherwise I will go for Short technical note / letter to the editor.

Thank you again.

I think Dr. Basit majority of the authors already know the blunders. However, in order to get publications some try to bypass and just get it published. Writing to th author is very wise of you but also it would be better to inform the journal about it. And if you do not see an action taken then you write your own paper on the respective topic and amend the mistakes without criticizing the other author.

regards,

Rabya

If the error is related to the essence of the article first ask the opinion of the author and then write a comment to the editor of the journal if you still think the same. This is very possitive for the scientific comunity and a published paper must be not thinked as an absolute truth.

I concur with Josep L Rossello. If the error affects the concept of the paper or its implication, then write a comment to the editor (letter to editor) highlighting the problems.

As active editor, I suggest you to contact (i) the publisher (every journal has a responsible manager), or (ii) the co-editors or one of the associate editors, or (iii) any member of the editorial advisory board of the journal. They all have the responsibility to deal with this kind of issues. But, please double check if your claim is correct and then, and only then, follow up. Depending on the type of the error you may ask and/or the editor is obliged to publish an ‘Errata’ or ‘Correction’ (if the error is theoretical, logical, or empirical in nature) or a ‘Corrigendum’ (if the error is due to editorial or publishing reasons). Kind regards, I.H.

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Imre Horvath I Contacted the publishers, authors .... but no response from any one. the article is indexed in web of science, pubmed, etc...

Did you try please a phone call or skype call? E-mails processed off-line. I wish you success!