%=================================================================
\documentclass[oms,article,submit,moreauthors,pdftex,10pt,a4paper]{psrp}
\usepackage{graphics}
\usepackage{graphicx}
\usepackage{epsfig}
\usepackage{slashbox}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsthm}
\usepackage{newlfont}
\usepackage{color, soul}
\usepackage{lettrine}
\usepackage{latexsym}
\usepackage[utf8]{inputenc}
\usepackage{textcomp}
\usepackage{pgf plots}
\usepackage{multirow}
\usepackage{graphicx}
\usepackage{color, soul}

%=================================================================
\firstpage{1}
\makeatletter \setcounter{page}{\@firstpage}
\makeatother
\pagenumbers{1-xx}
\doinum{10.30538/omsxxxx.xxxx}
\pubvolume{x}
\pubyear{202x}
\copyrightyear{202x}
%\externaleditor{Academic Editor: xxxxxx}
%\history{Received: x xx 202x; Accepted: x xx 202x; Published: x xx 202x.}
%------------------------------------------------------------------
 \theoremstyle{psrp}
 \newcounter{thm}
 \setcounter{thm}{0}
 \newcounter{ex}
 \setcounter{ex}{0}
 \newcounter{re}
 \setcounter{re}{0}
  \newcounter{lem}
 \setcounter{lem}{0}
  \newcounter{nota}
 \setcounter{nota}{0}
    \newcounter{prop}
 \setcounter{prop}{0}
   \newcounter{def}
 \setcounter{def}{0}
 \newcounter{expe}
 \setcounter{expe}{0}
   \newtheorem{experiment}[expe]{Experiment}
  \newtheorem{theorem}[thm]{Theorem}
 \newtheorem{lemma}[lem]{Lemma}
 \newtheorem{corollary}[thm]{Corollary}
 \newtheorem{proposition}[prop]{Proposition}
\newcommand{\real}{\mathbb{R}}
 \theoremstyle{psrpdefinition}
 \newtheorem{Characterization}[thm]{Characterization}
 \newtheorem{property}[thm]{Property}
 \newtheorem{problem}[thm]{Problem}
 \newtheorem{example}[ex]{Example}
 \newtheorem{xxamplesandDefinitions}[ex]{Examples and Definitions}
 \newtheorem{remark}[re]{Remark}
 \newtheorem{definition}[def]{Definition}
 \newtheorem{notation}[nota]{Notation}
%Title
\Title{Write your title here}
%Authors
\Author{Firstname Lastname$^{1}$, Firstname Lastname$^{1}$ and Firstname Lastname$^{2,}$*}
\AuthorNames{Firstname Lastname, Firstname Lastname and Firstname Lastname}
%Authors  institutional addresses
\address{$^{1}$ \quad Affiliation 1; e-mail@e-mail.com\\
$^{2}$ \quad Affiliation 2; e-mail@e-mail.com}
% Corresponding author
\corres{Correspondence: e-mail@e-mail.com; Tel.: (optional; include country code; if there are multiple corresponding authors, add author initials) +xx-xxxx-xxx-xxxx (F.L.)}
\abstract{A single paragraph of about 200 words maximum. For research articles, abstracts should give a pertinent overview of the work. We strongly encourage authors to use the following style of structured abstracts, but without headings: (1) Background: place the question addressed in a broad context and highlight the purpose of the study; (2) Methods: describe briefly the main methods or treatments applied; (3) Results: summarize the article's main findings; (4) Conclusion: indicate the main conclusions or interpretations. The abstract should be an objective representation of the article, it must not contain results which are not presented and substantiated in the main text and should not exaggerate the main conclusions.}
% Keywords
\keyword{keyword 1; keyword 2; keyword 3 (List three to ten pertinent keywords specific to the article; yet reasonably common within the subject discipline.)}
% Mathematical subject classification code
\MSC{ XXXX, XXXX, XXXX.}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{document}
\section{How to Use this Template}

The template details the sections that can be used in a manuscript. Note that the order and names of article sections may differ from the requirements of the journal (e.g., the positioning of the Materials and Methods section). Please check the instructions on the authors' page of the journal to verify the correct order and names. For any questions, please contact the managing editor of the journal.

\section{Introduction}

\lettrine[findent=2pt]{\fbox{\textbf{T}}}{ }he introduction should briefly place the study in a broad context and highlight why it is important. It should define the purpose of the work and its significance. The current state of the research field should be reviewed carefully and key publications cited. Please highlight controversial and diverging hypotheses when necessary. Finally, briefly mention the main aim of the work and highlight the principal conclusions. As far as possible, please keep the introduction comprehensible to scientists outside your particular field of research. Citing a journal paper \cite{ref-journal}. Now citing a book reference \cite{ref-book1,ref-book2} or other reference types \cite{ref-unpublish,ref-communication,ref-proceeding}. Please use the command \cite{ref-thesis,ref-url}.

\section{Materials and Methods}

Materials and Methods should be described with sufficient details to allow others to replicate and build on published results. Please note that publication of your manuscript implicates that you must make all materials, data, computer code, and protocols associated with the publication available to readers. Please disclose at the submission stage any restrictions on the availability of materials or information. New methods and protocols should be described in detail while well-established methods can be briefly described and appropriately cited.

Research manuscripts reporting large datasets that are deposited in a publicly avail-able database should specify where the data have been deposited and provide the relevant accession numbers. If the accession numbers have not yet been obtained at the time of submission, please state that they will be provided during review. They must be provided prior to publication.
\section{Results}

This section may be divided by subheadings. It should provide a concise and precise description of the results, their interpretation as well as the conclusions that can be drawn.
\subsection{Subsection}
\subsubsection{Subsubsection}

Bulleted lists look like this:
\begin{itemize}
\item	First bullet;
\item	Second bullet;
\item	Third bullet.
\end{itemize}

Numbered lists can be added as follows:
\begin{enumerate}
\item	First item;
\item	Second item;
\item	Third item.
\end{enumerate}

The text continues here.

\subsection{Figures, Tables and Schemes}

All figures and tables should be cited in the main text as Figure~\ref{fig1}, Table~\ref{tab1}, etc.


\begin{figure}[H]
\centering
\includegraphics[width=10.5 cm]{oms-logo}
\caption{This is a figure. Schemes follow the same formatting. If there are multiple panels, they should be listed as: (\textbf{a}) Description of what is contained in the first panel. (\textbf{b}) Description of what is contained in the second panel. Figures should be placed in the main text near to the first time they are cited. A caption on a single line should be centered.\label{fig1}}
\end{figure}

\begin{table}[H]
\caption{This is a table caption. Tables should be placed in the main text near to the first time they are~cited.\label{tab1}}
\centering
\begin{tabular}{c|c|c}
\textbf{Title 1}	& \textbf{Title 2}	& \textbf{Title 3}\\
\hline
Entry 1		& Data			& Data\\ \hline
Entry 2		& Data			& Data\\
\end{tabular}
\end{table}
\subsection{Formatting of Mathematical Components}

Do not number the equation if it is not refereed in the text. This is the example 1 of equation:
\begin{equation*}
a = 1,
\end{equation*}
the text following an equation need not be a new paragraph. Please punctuate equations as regular text.

This is the example 2 of equation:
\begin{equation}\label{equation1}
a = b + c + d + e + f + g + h + i + j + k + l + m + n + o + p + q + r + s + t + u + v + w + x + y + z
\end{equation}
To refer an equation use the command, using the Equation \eqref{equation1}, we obtain.....

Theorem-type environments (including propositions, lemmas, corollaries etc.) can be formatted as follows:
\begin{lemma}\label{lemma1}
Example text of a lemma.
\end{lemma}

The text continues here. Proofs must be formatted as follows:

\begin{proof}[Proof of Lemma \ref{lemma1}]
Text of the proof. Note that the phrase ``of Lemma \ref{lemma1}'' is optional if it is clear which theorem is being referred to.
\end{proof}
The text continues here.

\begin{theorem}\label{theorem1}
Example text of a theorem.
\end{theorem}

The text continues here. Proofs must be formatted as follows:

\begin{proof}[Proof of Theorem \ref{theorem1}]
Text of the proof. Note that the phrase ``of Theorem \ref{theorem1}'' is optional if it is clear which theorem is being referred to.
\end{proof}
The text continues here.

\begin{corollary}\label{corollary1}
Example text of a corollary.
\end{corollary}

The text continues here. Proofs must be formatted as follows:

\begin{proof}[Proof of Corollary \ref{corollary1}]
Text of the proof. Note that the phrase ``of Corollary \ref{corollary1}'' is optional if it is clear which theorem is being referred to.
\end{proof}
The text continues here.
\begin{proposition}\label{proposition1}
Example text of a proposition.
\end{proposition}

The text continues here. Proofs must be formatted as follows:

\begin{proof}[Proof of Proposition \ref{proposition1}]
Text of the proof. Note that the phrase ``of Proposition \ref{proposition1}'' is optional if it is clear which theorem is being referred to.
\end{proof}
The text continues here.
\begin{example}\label{example1}
Example text of a example.
\end{example}
\section{Discussion}

This section is not mandatory, but can be added to the manuscript.
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\section{Conclusions}

This section is not mandatory, but can be added to the manuscript.

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\authorcontributions{For research articles with several authors, a short paragraph specifying their individual contributions must be provided.}
\conflictofinterests{Declare conflicts of interest or state ``The authors declare no conflict of interest.''}
\dataavailability{Please give the details from where the data used for this research can be obtained. If no data is used for this research, please write "No data is required for this research". If the required data is included within the paper, please write "All data required for this research is included within this paper".}
\fundinginformation{Please write the funding details here. If funding statement is not applicable, please write "No funding is available for this research".}
\acknowledgments{ In this section you can acknowledge any support given which is not covered by the author contribution or funding sections. This may include administrative and technical support, or donations in kind.}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\bibliographystyle{psrp}
\renewcommand\bibname{References}
\begin{thebibliography}{99}
% The reference style of the PSR-Press journals is almost similar to APA style.
\bibitem{ref-journal}
Author1, T., Author2, P., \& Author3, W. (2021). The reference style of the PSR-Press journals is almost similar to APA style. {\em Journal Name, 10}(2), 142--149.
% Reference 2
\bibitem{ref-book1}
Author2, L. (2021).  {\em The title of the cited contribution.} Eds.; Publishing House, City, Country.
\bibitem[Author3(year)]{ref-book2}
Author 1, A., \& Author 2, B. (2021). \textit{Book Title}. Eds.; Publishing House, City, Country.
% Reference 4
\bibitem{ref-unpublish}
Author1, A. B., Author2, C., Title of Unpublished Work. \textit{Journal Name}, stage of publication (under review; accepted; in~press).
% Reference 5
\bibitem{ref-communication}
Author 1, A. B. (2021). (University, City, State, Country); Author 2, C. (Institute, City, State, Country). Personal communication.
% Reference 6
\bibitem{ref-proceeding}
Author1, A. B., Author2, C. D., \& Author3, E. F. (2021). Title of Presentation. In Title of the Collected Work (if available), Proceedings of the Name of the Conference, Location of Conference, Country, Date of Conference, Editor 1, Editor 2, Eds. (if available); Publisher: City, Country, Year (if available); Abstract Number (optional), Pagination (optional).
% Reference 7
\bibitem{ref-thesis}
Author 1, A. B. (2021). Title of Thesis. Level of Thesis, Degree-Granting University, Location of University, Date of Completion.
% Reference 8
\bibitem{ref-url}
Title of Site. Available online: URL (accessed on Day Month Year).
\end{thebibliography}
\end{document}
