In academic publishing, a scientific journal is a
periodical publication
intended to further the progress of science, usually by reporting new research. Most journals are highly specialized, although some of the oldest journals such
as Nature publish articles and scientific papers across a wide range of scientific fields. Scientific
journals contain articles that have been peer-reviewed, in an attempt to
ensure that articles meet the journal's standards of quality, and scientific validity. Although scientific journals are
superficially similar to magazines, they are actually quite different. Issues of a
scientific journal are rarely read casually, as one would read a magazine. The articles are written as part of the scientific method; they generally must supply enough details of an
experiment, so that an independent research could potentially repeat the experiment to verify the results. Such journal articles
are considered part of the permanent scientific record.
The standards that a journal uses to determine publication can vary widely. Some journals, such as Nature and Science, will not publish an article unless they believe that it marks a fundamental breakthrough in
its field, and hence will reject papers which contain good work that does not meet this criterion. Other journals, such as
Astrophysical Journal or Physical Review will generally accept articles unless the referees
believe that the paper is hopelessly and fundamentally flawed. In many fields, an informal hierarchy of scientific journals
exists; the most prestigious journal in a field tends to be the most selective in terms of the articles it will select for
publication. It is also common for journals to have a regional focus, specializing in publishing papers from a particular
geographic region.
Articles tend to be highly technical, representing the latest theoretical research and experimental results in the field of
science covered by the journal. They are often incomprehensible to anyone except for researchers in the field. Scientific
journals are a crucial part of the scientific
literature.
Current issues in scientific journal publishing
It has been argued that peer-reviewed paper journals are in the process of
being replaced by electronic publishing. There is usually
a delay of several months after an article is written before it is published in a journal and this makes journals not an ideal
format for disseminating the latest research. In some fields such as astronomy,
the role of the journal at disseminating the latest research has largely been replaced by preprint databases such as arXiv.org. However, scientific journals
still provide an important role in quality control, archiving papers,
and establishing scientific
credit. In general, the electronic materials uploaded to preprint databases are still intended for eventual publication in a peer-reviewed journal.
Another controversy is the cost of scientific journals. Many scientists and librarians have protested against the cost of
journals, especially as they see these fees going to large for-profit publishing houses. Also the fact that copyright is assigned
to the journal publisher, and not the authors, causes much discussion.
There is an article titled "Online or Invisible?" (see link at end of article) which uses statistical arguments to claim that
electronic publishing provides wider dissemination. A number of journals have,
while retaining their peer review process, established electronic versions or even moved entirely to electronic publication.
There are several types of journal articles; the exact terminology and definitions vary by field and specific journal, but
often include:
- Letters (not to be confused with letters to the editor) are short descriptions of current research
findings.
- Articles are usually between five and twenty pages and are a complete descriptions of current original research
finding, but there are considerable variations between scientific fields and journals: 80-page articles are not rare in mathematics or theoretical computer science.
- Supplemental articles contain a large volume of tabular data that is the result
of current research and may be dozens or hundreds of pages with mostly numerical data.
- Review articles do not cover original research but rather synthesize the results of many different articles on
a particular topic into a coherent narrative about the state of the art in that field.
The formats of journal articles vary, but almost always follow the following general scheme. They begin with an abstract, which is a two to four paragraph summary of the
paper. The introduction describes the background for the research including a discussion of similar research. The
materials and methods section provides specific details of how the research was conducted. The results and
discussion section describes the outcome and implications of the research, and the conclusion section places the
research in context and describes avenues for further exploration.
In addition to the above, some scientific journals such as Science will include a news section where scientific
developments (often involving political issues) are described. These articles are often written by science journalists and not by
scientists. In addition some journals will include an editorial section and a section for letters to the editor. Interestingly,
while these are articles published within a journal, they are not generally regarded as scientific journal articles because they
have not been peer reviewed.
External links
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