Instructions for Authors

SCOPE AND POLICY

The SLEEP SCIENCE journal (ISSN 1984-0659 print version) is the official organization of Associação Brasileira de Sono (ABS – Brazilian Association of Sleep) and Federação Latino-Americana de Sociedades de Sono (FLASS – Latin American Federation of Sleep Societies) for publication of scientific papers concerning sleep, chronobiology, and related topics. After being approved by the Editorial Board, all articles will be evaluated by two or more qualified Reviewers, in a blind process. Articles that fail to present merit, have significant errors in methodology or are not in accordance with the editorial policy of the journal will be directly rejected by the Editorial Board, with no recourse. Manuscripts that have not been published elsewhere except in abstract form, on any aspect of sleep and chronobiology and both in basic and clinical areas will be considered. The accuracy of all concepts presented in the manuscript is the exclusive responsibility of the authors. The journal reserves the right to make stylistic, grammatical and other alterations to the manuscript. Manuscripts must not be concurrently submitted to any other publication, print or electronic. Articles may be written in English (American or British usage is accepted, but not a mixture of these) and should state that the protocol has been approved by the Ethics Committee of the Institution where the research was carried out. All studies involving human subjects should inform that written consent has been obtained from all subjects (individually).

SUBMISSION CHECKLIST

For each manuscript submitted to Sleep Science, the authors should assure that a) the content of the manuscript has not been submitted for publication in another journal or book (except in the form of an abstract or as part of a published lecture or academic thesis or as an electronic preprint) in English or in any other language, including electronically without the written consent of the copyright-holder; b) each potential conflict of interests of the authors are dully disclosed; c) the experimental procedures were properly approved by the ethics committee of the institution where the research was carried out, if the investigation involves experiments on humans or animals; d) every possible funding source was disclosed; e) all participants provided signed consent forms, in the case of medical research on humans; f) the copyright of the manuscript after it acceptance will be transferred to Sleep Science. To verify originality, your article may be checked by the originality detection service CrossCheck.

It is requested that the authors strictly follow the editorial guidelines of the journal. Failure to comply with the author instructions will result in the manuscript being returned to the authors. Abbreviations should be used sparingly and should be limited only to those that are widely accepted. All abbreviations should be defined at first use.

Sleep Science will accept clinical trials for publication only if they have received an identification number from the Clinical Trial Registry, or from a similar clinical trial database, validated by the criteria established by World Health Organization (WHO) and International Committee of Medical Journals Editors (ICMJE). For more information: http://clinicaltrials.gov.

CHANGES TO AUTHORSHIP

Authors are expected to consider carefully the list and order of authors before submitting their manuscript and provide the definitive list of authors at the time of the original submission. Any addition, deletion or rearrangement of author names in the authorship list should be made only before the manuscript has been accepted and only if approved by the journal Editor. To request such a change, the Editor must receive the following from the corresponding author: (a) the reason for the change in author list and (b) written confirmation (e-mail, letter) from all authors that they agree with the addition, removal or rearrangement. In the case of addition or removal of authors, this includes confirmation from the author being added or removed. Only in exceptional circumstances will the Editor consider the addition, deletion or rearrangement of authors after the manuscript has been accepted. While the Editor considers the request, publication of the manuscript will be suspended. If the manuscript has already been published in an online issue, any requests approved by the Editor will result in a corrigendum.

TYPES OF PAPER

This journal publishes contributions in the following categories:

Original Articles: This manuscript should be the result of original investigation, presenting unpublished data. Each manuscript should clearly state its objective or hypothesis; the design and methods used; the study setting and time period; the essential features of any interventions; the main outcome measures; the main results of the study; and a section placing the results in the context of published literature.

Short Communication: A Short Communication is related to concise reports on a single issue, preliminary findings on a given subject, or any other case in which the findings are not sufficient for a full original article. As in Original Articles, should be the result of original investigation, presenting unpublished data. The scope of this section is intended to be wide and to encompass methodology and experimental data on subjects of interest to the readers of the journal.

Review article: A Review article should provide a broad and critical analysis of a relevant area and should not be merely a chronological description of the literature or a data compilation. Illustrations summarizing the main concepts of the Reviews are highly recommended.

Overview: As a Review, An Overview does not contain unpublished data. It presents the point of view of the author(s) in a less rigorous form than in regular Reviews and is of interest to the general reader.

Case report: A case report should have at least one of the following characteristics to be published in Sleep Science: a case of special interest to the clinical research community; a rare case that is particularly useful to demonstrate a mechanism or a difficulty in diagnosis; new diagnostic method; new or modified treatment. If available, the authors could present a series of cases, rather than one individual case.

Theoretical essays: This is a very broad category of articles. Theoretical essays encompass several kinds of non-experimental articles, such as perspectives, hypotheses, and opinions. In these articles, the goal is to clearly report authors’ point of view regarding a specific field of research clinical area.

Correspondences: Correspondences are intended to promote scientific debate. This specific and brief kind article will be an opportunity to comment, criticize, or highlight papers that were already published in Sleep Science.

 

Maximum lenght*

Mandatory sections

Abstract

Keywords

Figures and tables

References

Original articles

Up to 6,000 words

Abstract; Introduction; Material and Methods; Results; Discussion; References

Maximum of 250 words, structured as Objective, Methods, Results, Discussion

Three to six

Limited to 8

Limited to 60

Short communications

Up to 3,000 words

Abstract; Introduction; Material and Methods; Results; Discussion; References

Maximum of 150 words, structured as Objective, Methods, Results, Discussion

Three to six

Limited to 4

Limited to 20

Reviews

Up to 8,000 words

Abstract; References

Maximum of 250 words; unstructured

Three to six

Limited to 8

Unlimited

Overviews

Up to 5,000 words

Abstract; References

Maximum of 250 words; unstructured

Three to six

Limited to 4

Limited to 40

Case reports

Up to 1,500 words

Abstract; References

Maximum of 150 words; unstructured

Three to six

Limited to 4

Limited to 20

Theoretical essays

Up to 4,000 words

Abstract; References

Maximum of 250 words; unstructured

Three to six

Limited to 4

Limited to 40

Correspondences

Up to 500 words

Not applicable

Not applicable

Not applicable

Not allowed

Limited to 10

MANUSCRIPT SUBMISSION

Submission to this journal proceeds totally online. Use the following guidelines to prepare your article. Via the homepage of this journal http://sleepscience.gnpapers.com.br you will be guided stepwise through the creation and uploading of the various files. All correspondence, including notification of the Editor's decision and requests for revision, takes place by e-mail and via the author's homepage, removing the need for a hard-copy paper trail. If you are unable to provide an electronic version, please contact the editorial office prior to submission (email: sleepscience@sleepscience.com.br).

Article structure

Divide your article into clearly defined and numbered sections. Subsections should be numbered 1.1 (then 1.1.1, 1.1.2, ...), 1.2, etc. (the abstract is not included in section numbering). Use this numbering also for internal cross-referencing: do not just refer to 'the text'. Any subsection may be given a brief heading. Each heading should appear on its own separate line.

Title page: The title page should include the title and a running title to be used as a page heading, which should not exceed 60 letters and spaces; and a declaration of any and all sources of funding.
Abstract and keywords: The abstract should present the information in such a way that the reader can easily understand without referring to the main text and should be followed by 3 to 6 keywords in English defining the main subjects of the study. 
Tables and Figures: All tables and figures should be in black and white or in gray scales, on separate pages. Tables and figures should be included in the step 5, the figures should be included in step 6 of the submission process. Photographs depicting surgical procedures, as well as those showing the results of exams or biopsies, will be considered for publication in color, at no additional cost to the authors, provided that they are essential for the manuscript. Each table and figure should be numbered with an Arabic numeral corresponding to its citation in the text.
Legends: Table legends should accompany the respective tables in the main manuscript file. For figure legends they should be inserted on a separate page, after the references. In addition, all abbreviations, acronyms, and symbols should be defined below each table or figure in which they appear.
References: References should be listed in order of their appearance in the text and should be numbered consecutively with Arabic numerals. The presentation should follow the Vancouver Style, according to the examples below. The titles of the journals listed should be abbreviated according to the style presented by the List of Journals Indexed in the Index Medicus of the National Library of Medicine, available at: http://www.ncbi.nlm.nih.gov/entrez/journals/loftext.noprov.html. A total of six authors may be listed. For works with more than six authors, list the first six, followed by 'et al.'

Examples:
Journal articles
1. Tufik S, Lindsey CJ, Carlini EA. Does REM sleep deprivation induce a supersensitivity of dopaminergic receptors in the rat brain? Pharmacology. 1978;16(2):98-105. 
2. Andersen ML, Poyares D, Alves RS, Skomro R, Tufik S. Sexsomnia: abnormal sexual behavior during sleep. Brain Res Rev. 2007;56:271-82.
Abstracts
3. Moreno CRC, Carvalho FA, Matuzaki LA, Louzada FM. Effects of irregular working hours on sleep and alertness in Brazilian truck drivers [abstract]. Sleep. 2002;25:399.
Chapter in a book
4. Andersen ML, Bittencourt LR. Fisiologia do sono. In: Tufik S, editor. Medicina e biologia do sono. São Paulo: Manole; 2007. P. 48-58.
Official publications
5. World Health Organization. Guidelines for surveillance of drug resistance in tuberculosis. 2nd ed. Geneva: WHO; 2003. p. 1-24.
Thesis
6. Bittencourt L. Avaliação davariabilidade do Índice de apnéia e hipopnéia em pacientes portadores da síndrome da apnéia e hipopnéia do sono obstrutiva [tese]. São Paulo: Universidade Federal de São Paulo; 1999.
Electronic publications
7. Abood S. Quality improvement initiative in nursing homes: the ANA acts in an advisory role. Am J Nurs [Internet]. 2002 [cited 2002 Aug 12];102(6):[about 3 p.]. Available from: http://www.nursingworld.org/ AJN/2002/june/Wawatch.htm
Homepages/URLs
8. Cancer-Pain.org [Internet]. New York: Association of Cancer Online Resources, Inc., c2000-01 [updated 2002 May 16; cited 2002 Jul 9]. Available from: http://www.cancer-pain.org/

Other situations:
In other situations not mentioned in these author instructions, the recommendations given by the ICMJE should be followed, specifically those in the article Uniform Requirements for Manuscripts Submitted to Biomedical Journals: Writing and Editing for Biomedical Publication (Updated October 2009), available from: http://www.icmje.org/. Additional examples for special situations involving references can be obtained at: www.nlm.nih.gov/bsd/uniform_requirements.html

Important notes

  • Corresponding author : Clearly indicate who will handle correspondence at all stages of refereeing and publication, also post-publication.  Ensure that the e-mail address is given and that contact details are kept up to date by the corresponding author.
  • Keywords: Immediately after the abstract, provide a maximum of 6 keywords, using American spelling and avoiding general and plural terms and multiple concepts (avoid, for example, 'and', 'of'). Be sparing with abbreviations: only abbreviations firmly established in the field may be eligible. These keywords will be used for indexing purposes.
  • Acknowledgements : Collate acknowledgements in a separate section at the end of the article before the references and do not, therefore, include them on the title page, as a footnote to the title or otherwise. List here those individuals who provided help during the research (e.g., providing language help, writing assistance or proof reading the article, etc.).

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