I think the scale is important:

Examples

The language of research might be a local language when it involves local interactions with (Young) students/teachers.

The language of research might be a local/regional language when it involves national interactions with national teams/students/....

The language of research would logically be a language being able to reach as many people as possible

What (published) language does have the highest impact at an international scale, e.g. across cultures/countries/continents/...?

Dear Colleagues, 

Good Day, 

We either use our native language (here is Arabic in my case) or we use English. This is in my country.. 

Does this imply that science is aimed to solve problems, not to promote (local) culture?

Anything that involves learning and the application of learning ought to count as research.  However as academia has traditions, those traditions have the pressure upon them to act not simply to disclose information, but to enclose and capitulate a dead relation between knowledge and information.  It stands to reason that information is not what research is, but what research does as it transforms dead facts into a system of relations.  Anything including a computer can do this, but not in ways that evolve a salience in terms of custom and experience.  For this to occur something must condition the mind's materials and generate a new evolution for knowledge with applications within a concinnity of reticulated networks.  It must in other words have applications in institutional senses of the word...for it to become a cultural product. It must in some way fit into or modify our institutions with intention, accident, manifest hidden volition, or through Zenetic ((robustly attained through randomized new data affecting the whole of a system- feel free to read on Zenetics at my blog at http://albinoindigo.blogspot.ca)) transformation, in ways salient to a transparent and opaque filtration of new influences and of this one should rebel and revolt at times, else submit to gesture to the awe inspiring redundancy of culture. To it's opaque "System".  I say DESTROY DESTROY DESTROY SYSTEMATICALLY THE SYSTEM....DESTROY THE DEATHSTAR!  Jokes. Education was always about morality, it began as a need to organize morality, so do what feels right, and in giving substance to your voice, transform the landscape of your options through research, that's when you've reached the apex of your learning really, it's there to improve one's life and the lives of others.  The more scientific the better is an illusion, the more creative the better I say with respect to research.  Most all of my work is ANTI-RESEARCH research!  Yay!  hours of fun!  Thanks for posting this awesome question.  Some music for you to enjoy....

https://www.youtube.com/watch?v=iDBGdaB1M-4

What I feel there is no particular language for research. But every word has its own importance, that too, according to the context. Even a single word can change the whole meaning. And the reader can interpret the message in entirely different way even if the word is synonymous. Thats what the post structuralists also point out. Hence, one must be very careful while using the words and language.

What should be the language of research?

Think there is no fixed language for research.  But language used should fit for its purpose in the article / thesis / conference proceeding / presentation / audience and can be different from discipline to discipline like engineering, social sciences etc.  For example, language used in conference presentation might focus on keywords rather than structured / proper grammar English as in article writing even though both of them derived from the same contents.

I think research can be written in any language, however, if it is written in English, more people will be able to interact with it as for many researchers English can be considered as a lingua franca to communicate and share their ideas more easily.

There are specialized formations to learn one or more languages, which may take four or more years at university, often focusing on a single language or a group of closely related languages. Are in this framework scientists language specialists, which might be important when they define/use terminology? 

Hello folks .... Well it depends where we actually do research. However; english is most widely accepted in the dental literature and I think it should be the language of choice for most individuals in my profession.

Best wishes

comprehensive. Not too intricate... Though I would like to see the word endeavour and disclose.

Dear Sabah,

I think, in the humanities the language used should be first of all honest (speaking only about what you really believe to be true), possibly easy to decode, and describing the theme vividly, with clarity and as true to it, as possible. We should try to suspend our political, religous or other prejudices, and look at the matter with the eye of the "impartial spectator".

Best,

Ferenc

Of course, it depends   on topic, but  always remember, that research is not an assay! Your opinion should be always (or mainly) based on concrete arguments and knowledge, and not on your personal  artistic impressions or  emotional associations. Of course, sometimes fantasy is also needed...but only sometimes...

As you might have heard the mostly used language is "broken english". I remember one of my professors said my Ph.D. Dissertation had a "latin flavor" and that I should keep it that way.  Of course mathematics ,statistics , graphics and tables are an important part of any study and they have their own language.

Language skills develop and improve over time with continued exposure to quality language productions. The desired change will probably be slower in a multi-language environment where the target language has less space. There is need then consciously to provide oneself with opportunities for encounter with the target language in the works and productions of more experienced members of the language community one is aiming to become part of. Improvements will come with time.

. We can then take on some of the major issues in research like the types of questions we can ask in a project, the role of time in research, and the different types of relationships we can estimate. Then we have to consider defining some basic terms like variable, hypothesis, data, and unit of analysis. If you're like me, you hate learning vocabulary, so we'll quickly move along to consideration of two of the major fallacies of research.you can also done Descriptive Research ,Developmental Research, Case and Field Study Research ,Correlational Research ,Comparative research in any language.

Although French is traditionally used as the language of international diplomacy, it has been challenge by English and Spanish as the dominant language both spoken and written. Much important scientific research is also being published in other languages, including Russian, German, Italian, and Dutch. Most research performed by Asian scientists, including Japanese, Chinese, and Indian, is being done in English. High profile journals require articles to be written in English.