 
<translate> Quoc: Nchịkọta bụ nchịkọta dị mkpirikpi nke isiokwu nyocha, edemede, nyocha, usoro ogbako, ma ọ bụ nyocha ọ bụla miri emi nke otu isiokwu ma na-ejikarị enyere onye na-agụ ya aka ịchọpụta ngwa ngwa nke akwụkwọ ahụ. Mgbe ejiri ya, nchịkọta na-apụta mgbe niile na mmalite nke akwụkwọ edemede ma ọ bụ ederede, na-eme dị ka ebe ntinye maka akwụkwọ agụmakwụkwọ ọ bụla ma ọ bụ ngwa patent. Abstracting na indexing ọrụ maka dị iche iche agụmakwụkwọ ọzụzụ na-iji chịkọta a aru nke akwụkwọ maka na akpan akpan isiokwu.  Zaa ajụjụ a dabere n'akụkụ Akwụkwọ Nsọ a: gịnị bụ nchịkọta n'isiokwu dị na magazin sayensị? HW Chung: OK, ụfọdụ echiche: <eng> Quoc: An abstract is a brief summary of a research article, thesis, review, conference proceeding, or any in-depth analysis of a particular subject and is often used to help the reader quickly ascertain the paper's purpose. When used, an abstract always appears at the beginning of a manuscript or typescript, acting as the point-of-entry for any given academic paper or patent application. Abstracting and indexing services for various academic disciplines are aimed at compiling a body of literature for that particular subject.

Answer this question based on the passage: what is an abstract in a scientific journal article?
HW Chung: OK, some thoughts: 