writing problems again

[azkad]

Hello again,

Are these titles right and correspond to the general writing rules in English?
Which is right:

Doctor of Historical Sciences
Doctor of History
or simply, Doctor

And Candidate of Political Sciences
or simply, PhD

And what is the difference between assistant prof. and associate prof.?
And what is the difference between senior teacher and senior lecturer?

S. S. Agzamhodjaev, Head of the Department, Doctor of Historical Sciences, Professor
Sh. A. Yovkochev, Candidate of Political Sciences, Senior Lecturer
H. I. Kila, Assiatant Professor
S. I. Hololu, Associate Professor

Thanks in advance

[azkad]

Please, members and moderators, help me with the problem as quickly as possible. It is urgent! Any comments and ideas will largely be appreciated. Thanks in advance.

[Anglika]

I think the difficulty is that there is no single specific method of writing academic titles. They vary from country to country, and even from institution to institution. I have never come across a "Candidate of something".

Someone who holds a PhD is entitled to the honorific "Doctor".

Taking your examples, if I had to address them, this is what I would probably put:

S. S. Agzamhodjaev, Head of the Department, Doctor of Historical Sciences, Professor
Professor S. S. Agzamhodjaev, Head of Department, Historical Sciences.
Sh. A. Yovkochev, Candidate of Political Sciences, Senior Lecturer
Sh. A. Yovkochev, Senior Lecturer, Department of Political Sciences
H. I. Kila, Assistant Professor
S. I. Hololu, Associate Professor
Both these terms are more likely to be American usage. They are not used in the UK.

[azkad]

My most appreciative thanks, Anglika.