Author Guidelines

  • Introduction

Thamar University Journal of Natural & Applied Sciences (TUJNAS) is a peer-reviewed, open-access journal published twice a year by Thamar University, Dhamar, Yemen. The journal aims to publish original, review, case-study, editorial, and short-letter articles in the fields of pure and applied sciences, agriculture, engineering, medicine, environment, computer science, information technology, pharmacology, veterinary medicine, and dentistry.

 

  • Types of contributions or publications

Authors can publish a wide range of articles in the Thamar University Journal of Natural and Applied Sciences (TUJNAS):

  • Full-length articles,
  • Review articles,
  • Short communications,
  • Systematic reviews,
  • Editorials,
  • Perspectives,
  • Letters to the editor,
  • Commentaries and supplements,
  • Conference proceedings and
  • Case studies.

 

  • Format of submitted files: All submitted files (such as manuscripts, Figures, Tables, … etc.) should be provided in an editable format using the extension .doc/.docx for Word files and .tex for LaTeX files. A PDF is not an acceptable source file.

 

  • Manuscript preparation and Rules

All pages should be numbered consecutively, including those containing diagrams, tables, and figures. Diagrams, Tables, and Figures could be submitted either in separate sheets of the main file of the manuscript or with the manuscript file and placed after the text. The SI system should be used for all scientific and laboratory data. Abbreviations for units should follow the suggestions of the British standards publication BS 1991. The manuscript should be written in a single-column format with double-spaced lines.

  • The manuscript sections: The manuscript should be divided into sections, using headings (e.g., Abstract, Introduction, Experimental part, Results and Discussion, Conclusions, Acknowledgements, and References).
  • The title of the manuscripts (14 Times New Roman bold): It should be concise but informative. Authors should avoid unusual abbreviations in titles. It is recommended that titles do not exceed 20 words in length.
  • Author List (12 Times New Roman normal bold): Include all who have contributed substantially to the work. To facilitate indexing and retrieval and for unique identification of an author, use first names, initials, and surnames (e.g., Ahmed M. Saeed) or first initials, second names, and surnames (e.g., A. Mohammed Saeed). At least one author must be designated with an asterisk as the person to whom correspondence should be addressed.
  • Institution Address (12 Times New Roman normal): The author’s affiliation(s) listed should be the institution(s) where the work was conducted. If the present address of an author differs from that at which the work was done, that address should be given in an Author Information note.
  • The Abstract (12 Times New Roman normal): It should consist of a brief and factual account of the contents and conclusions of the paper, in addition to an indication of any new information that it may contain and of its relevance. No references should be given in the Abstract.
  • The Introduction (12 Times New Roman normal): This should clearly state the reasons for the work, including the problem statement of work and what is new in the article, with brief references to previous work on the subject.
  • The Main Text (12 Times New Roman normal): use four or fewer headings (e.g., Experimental, Results, Discussion, Conclusions). The heading and subheadings should be bold, while the sub-subheadings should be bold and italic. The footnotes should be avoided. Indicate the proper positions for inserting tables and figures in the manuscript.
  • Tables: Tables should be numbered consecutively, and each table should have a short informative heading as a table caption.
  • Figures: A caption for each Figure should be provided. All figures should be numbered consecutively and cited in the manuscript text. Number figures according to the sequence in which they appear within the manuscript text. Images used as Figures or diagrams could be saved as TIFF, JPG, or PNG files using a minimum of 300 dpi (min. 1063 pixels, full page width: 2244 pixels) for color or grayscale photographs (halftones) while using a minimum of 1000 dpi (min. 3543 pixels, full page width: 7480 pixels) for the bitmapped line drawings. Images that combine bitmapped lines/halftones (color or grayscale) should be saved as TIFF, JPG, or PNG files using a minimum of 500 dpi (min. 1772 pixels, full page width: 3740 pixels).
  • References: The author ensures that every reference cited in the text is also present in the reference list (and vice versa). Unpublished results and personal communications are not recommended in the reference list.
  • Reference style (In the text): In the text, indicate references by number(s) in square brackets that align with the text. The actual authors can be referred to, but the reference number(s) must always be given. Example: "These results agree with previous studies [5,7]. Williams et al. [9] obtained different results ....".
  • Reference style (In the list): In the reference list, in numerical order in square brackets [ ] at the end of the paper. The list should list each reference in the following order (Example in list):

Journals: [5] Singh, A.K., Pal, P., Gupta, V., Yadav, T.P., Gupta, V., Singh, S.P. (2018) Green synthesis, characterization and antimicrobial activity of zinc oxide quantum dots using Eclipta alba, Materials Chemistry and Physics 203: 40-48.

Books: [8] Smith, J.D.H. (2008) Introduction to Abstract Algebra, 1st ed., CRC Press, Boca Raton, FL, USA.

Chapter in Book: [12] Zhu, X., Pathakoti, K., Hwang, H.-M., Green synthesis of titanium dioxide and zinc oxide nanoparticles and their usage for antimicrobial applications and environmental remediation, in: Shukla, A.K., Iravani, S., (Eds.), Book (2019) Green synthesis of titanium dioxide and zinc oxide nanoparticles and their usage for antimicrobial applications and environmental remediation, Elsevier, Amsterdam, Netherlands, pp. 223-263.

Thesis: [4] [4] David, M.L. (2022) Detection of Bio-organism via Ag Nanoparticles. Physics, Ph.D. thesis, Berlin University, Berlin, Germany.