Among the wording must be clear and concise, All the acronyms cited must have their meaning.
In the case of scientific research articles and case studies, the following structure is recommended, not being exclusive:
Introduction
– It is written in the present, with a descriptive-narrative style.
– Refers to the purpose of the work, its scope and importance, as well as current knowledge
about the topic; citing the most relevant contributions on the subject.
– Includes the theoretical and rational foundation of the study: the what and why of the investigation.
– The main (general) and secondary (specific) objectives must be made explicit.
– The hypothesis or research question and the scientific problem are declared.
– Provide only strictly pertinent references and conclusions of the
reported scientific result.
– There should not be an excess of bibliographic citations, since for a detailed study on the subject they are
review articles.
– For more information on the introduction according to the APA standard 7th edition, consult the link: https://normas-apa.org/estructura/introduccion/
Materials and methods
– It is written in the past (measured, studied, analyzed, checked, etc.), with a descriptive style.
– The criteria used to choose the object of study and the steps followed appear.
– Clearly expresses all relevant protocols, methods and characteristics of the materials
employed to arrive at the results.
– Presents the materials evaluated (technical specifications, quantities, origin or method
of preparation, generic or chemical names, avoiding commercial ones).
– A complete description of the methods used should appear so that the reader can
evaluate the suitability of the methods, the reliability and the validity of their results, facilitating
that another researcher can replicate the methodology and compare the results.
– The size of the sample must be declared; Statistical analysis should be done using
specialized software.
– You must present the period of time and scenarios studied, as well as comment on the main
research limitations.
– The use of acronyms, measurement systems, etc. is declared, if required.

Results
– They are written in the past tense with a descriptive-narrative style, clearly and concisely, without excessive use
of verbs.
– They must summarize the information collected and the analysis carried out on the most relevant data
through text, tables and figures (only up to 8 tables).
– The tables and figures must be self-explanatory, so that the reader does not have to go to the
text to understand the information presented.
– Numerical results must be provided, not only derivatives (for example, %) but also
the absolute numbers from which the derivatives were calculated and must be specified
the statistical methods used.
– The international system of units will be used.
– The correct statistical expressions will be used and redundancies will be avoided.
– They express themselves without making value judgments or drawing conclusions.

Discussion
– It is written in the present, but in the past when the results obtained are discussed.
– What is really important is considered, emphasizing the new and essential aspects of the
study, its importance, implications and limitations.

– Data or other material provided in the Introduction section should not be repeated in detail.
or Results.
– For experimental studies, it is useful to begin the discussion by summarizing the main
findings, then explain possible mechanisms or explanations for these findings.
– Compare and contrast how the research is different from what is reported
above and how the authors’ observations will significantly advance the
current knowledge of the subject.
– Unqualified statements and criteria not supported by data should be avoided.
– Possible applications of the results obtained are discussed.
– It must be based on statistical analysis and contributions from other authors with similar studies, more not on subjective appraisals.
– Recommendations and suggestions for future research may appear.
– It should not be compared with too many studies, as it can distract or confuse the reader.
– Abbreviations should be kept to a minimum and defined on first use in the text.
In some cases, a common section is made: Results and discussion, in which at the same time
that the results are presented and are discussed, commented or compared with other studies;
in other cases the results and discussion can be separate sections.

Conclusions
– They are written in an impersonal way, using a language referring to what is exposed in the topic.
– Brief summary of the content of the article, with the most important contributions and
possible applications, avoiding lexical decorations and expressing them as directly
possible.
– They will be governed by what is proposed in the introduction.
– It is not about contributing new ideas, but rather compiling what is indicated in the results and
discussion.
– No citations from another author should appear.
– There must be correspondence with the stated objectives.
– They should not appear numbered, or with bullets.