# Elsarticle - CAS

## Usage

There are two class files

1. cas-sc.cls for single column journals.
\documentclass[<options>]{cas-sc}

2. cas-dc.cls for double column journals.
\documentclass[<options>]{cas-dc}


and have an option longmktitle to handle long front matter.

### Front matter

  \title[mode = title]{Leveraging social media news to predict stock
index movement using RNN-boost}

\tnotemark[1,2]

\tnotetext[1]{This document is the results of the research project
funded by the National Science Foundation.}

\tnotetext[2]{The second title footnote which is a longer text
matter to fill through the whole text width and overflow into
another line in the footnotes area of the first page.}

\author[1,3]{V. {{\=A}}nand Rawat}[type=editor,
auid=000,bioid=1,
prefix=Sir,
role=Researcher,
orcid=0000-0001-7511-2910]
\cormark[1]
\fnmark[1]

\credit{Conceptualization of this study, Methodology, Software}

\address[1]{Indian \TeX{} Users Group, Trivandrum 695014, India}

\author[2,4]{Han Theh Thanh}[style=chinese]

\author[2,3] {T. Rishi Nair}[role=Co-ordinator,
suffix=Jr]
\fnmark[2]

\credit{Data curation, Writing - Original draft preparation}

\address[2]{Sayahna Foundation, Jagathy, Trivandrum 695014, India}

\author[1,3]{Karl Berry}
\cormark[2]
\fnmark[1,3]

\address[3]{\TeX{} Users Group, Providence, MA, USA}

\cortext[cor1]{Corresponding author}
\cortext[cor2]{Principal corresponding author}
\fntext[fn1]{This is the first author footnote.
but is common to third author as well.}

\fntext[fn2]{Another author footnote, this is a very long footnote
and it should be a really long footnote. But this footnote is not
yet sufficiently long enough to make two lines of footnote text.}

\fntext[fn3]{K. Berry is the editor of \TeX Live.}

\nonumnote{This note has no numbers. In this work we demonstrate
$a_b$ the formation Y\_1 of a new type of polariton on the
interface between a cuprous oxide slab and a polystyrene
micro-sphere placed on the slab. The evanescent field of the
resonant whispering gallery mode (\WGM) of the micro sphere has a
substantial gradient, and therefore effectively couples with the
quadrupole $1S$ excitons in cuprous oxide.}

\begin{abstract}[S U M M A R Y]
In this work we demonstrate $a_b$ the formation Y\_1 of a new type
of polariton on the interface between a cuprous oxide slab and a
polystyrene micro-sphere placed on the slab. The evanescent field of
the resonant whispering gallery mode (\WGM) of the micro sphere has
a substantial gradient, and therefore effectively couples with the
quadrupole $1^S$ excitons in cuprous oxide. This evanescent
polariton has a long life-time, which is determined only by its
excitonic and \WGM component. The polariton lower branch has a well
pronounced minimum. This suggests that this excitation is localized
and can be utilized for possible \BEC. The spatial coherence of the
polariton can be improved by assembling the micro-spheres into a
linear chain.
\end{abstract}
\begin{keywords}
quadrupole exciton \sep polariton \sep \WGM \sep \BEC
\end{keywords}

\maketitle

 CAS Front matter in double column CAS Front matter in single column

#### Title

\title command have the below options:

1. title: Document title
2. alt: Alternate title
3. sub: Sub title
4. trans: Translated title
5. transsub: Translated sub title
\title[mode=title]{This is a title}
\title[mode=alt]{This is a alternate title}
\title[mode=sub]{This is a sub title}
\title[mode=trans]{This is a translated title}
\title[mode=transsub]{This is a translated sub title}


#### Author

\author command have the below options:

1. auid: Author id
2. bioid: Biography id
3. alt: Alternate author
4. style: Style of author name chinese
5. prefix: Prefix Sir
6. suffix: Suffix
7. degree: Degree
8. role: Role
9. orcid: ORCID
10. collab: Collaboration
11. anon: Anonymous author
12. deceased : Deceased author
13. twitter : Twitter account
14. facebook : Facebook account
15. linkedin : LinkedIn account
16. plus: Google plus account
17. gplus: Google plus account
 \author[1,3]{Author Name}[type=editor, auid=000,bioid=1, prefix=Sir, role=Researcher, orcid=0000-0001-7511-2910, facebook=, twitter=, linkedin=, gplus=] 

#### Various Marks in the Front Matter

The front matter becomes complicated due to various kinds of notes and marks to the title and author names. Marks in the title will be denoted by a star (⋆) mark; footnotes are denoted by super scripted Arabic numerals, corresponding author by of an Conformal asterisk (*) mark.

##### Title marks

Title mark can be entered by the command, \tnotemark[<num>] and the corresponding text can be entered with the command \tnotetext[<num>]{<text>}. An example will be:

\title[mode=title]{Leveraging social media news to predict
stock index movement using RNN-boost}

\tnotemark[1,2]

\tnotetext[1]{This document is the results of the research
project funded by the National Science Foundation.}

\tnotetext[2]{The second title footnote which is a longer text matter
to fill through the whole text width and overflow into
another line in the footnotes area of the first page.}


\tnotetext and \tnotemark can be anywhere in the front matter, but shall be before \maketitle command.

##### Author marks

Author names can have many kinds of marks and notes:

1. footnote mark : \fnmark[<num>]
2. footnote text : \fntext[<num>]{<text>}
3. affiliation mark : \author[<num>]
4. email : \ead{<emailid>}
5. url : \ead[url]{<url>}
6. corresponding author mark : \cormark[<num>]
7. corresponding author text : \cortext[<num>]{<text>}
##### Other marks

At times, authors want footnotes which leave no marks in the author names. The note text shall be listed as part of the front matter notes. Class files provides \nonumnote for this purpose. The usage

\nonumnote{<text>}


and should be entered anywhere before the \maketitle command for this to take effect.

#### Abstract and Keywords

Abstract shall be entered in an environment that starts with \begin{abstract} and ends with \end{abstract}. Longer abstracts spanning more than one page is also possible in Class file even in double column mode. We need to invoke longmktitle option in the class loading line for this to happen smoothly.

The key words are enclosed in a {keyword} environment.

 \begin{abstract} This is a abstract. \lipsum[3] \end{abstract} \begin{keywords} First keyword \sep Second keyword \sep Third keyword \sep Fourth keyword \end{keywords}  CAS Abstract and keywords

### Main Matter

#### Tables

##### Normal tables
 \begin{table} \caption{This is a test caption.} \begin{tabular*}{\tblwidth}{@{} LLLL@{} } \toprule Col 1 & Col 2\\ \midrule 12345 & 12345\\ 12345 & 12345\\ 12345 & 12345\\ 12345 & 12345\\ 12345 & 12345\\ \bottomrule \end{tabular*} \end{table}  CAS Simple table
##### Span tables
 \begin{table*}[width=.9\textwidth,cols=4,pos=h] \caption{This is a test caption.} \begin{tabular*}{\tblwidth}{@{} LLLLLL@{} } \toprule Col 1 & Col 2 & Col 3 & Col4 & Col5 & Col6 & Col7\\ \midrule 12345 & 12345 & 123 & 12345 & 123 & 12345 & 123 \\ 12345 & 12345 & 123 & 12345 & 123 & 12345 & 123 \\ 12345 & 12345 & 123 & 12345 & 123 & 12345 & 123 \\ 12345 & 12345 & 123 & 12345 & 123 & 12345 & 123 \\ 12345 & 12345 & 123 & 12345 & 123 & 12345 & 123 \\ \bottomrule \end{tabular*} \end{table*}  CAS Span table

#### Figures

##### Normal figures
 \begin{figure} \centering \includegraphics[scale=.75]{Fig1.pdf} \caption{The evanescent light - $1S$ quadrupole coupling ($g_{1,l}$) scaled to the bulk exciton-photon coupling ($g_{1,2}$). The size parameter $kr_{0}$ is denoted as $x$ and the \PMS is placed directly on the cuprous oxide sample ($\delta r=0$, See also Fig. \protect\ref{FIG:2}).} \label{FIG:1} \end{figure}  CAS Simple figure
##### Span figures
 \begin{figure*} \centering \includegraphics[width=\textwidth,height=2in]{Fig2.pdf} \caption{Schematic of formation of the evanescent polariton on linear chain of \PMS. The actual dispersion is determined by the ratio of two coupling parameters such as exciton-\WGM coupling and \WGM-\WGM coupling between the microspheres.} \label{FIG:2} \end{figure*}  CAS Span figure

#### Theorem and theorem like environments

CAS class file provides a few hooks to format theorems and theorem like environments with ease. All commands the options that are used with \newtheorem command will work exactly in the same manner. Class file provides three commands to format theorem or theorem like environments:

1. \newtheorem command formats a theorem in LaTeX’s default style with italicized font for theorem statement, bold weight for theorem heading and theorem number typeset at the right of theorem heading. It also optionally accepts an argument which will be printed as an extra heading in parentheses. Here is an example coding and output:
 \newtheorem{theorem}{Theorem} \begin{theorem}\label{thm} The \WGM evanescent field penetration depth into the cuprous oxide adjacent crystal is much larger than the \QE radius: \begin{equation*} \lambda_{1S}/2 \pi \left({\epsilon_{Cu2O}-1}\right)^{1/2} = 414 \mbox{ \AA} \gg a_B = 4.6 \mbox{ \AA} \end{equation*} \end{theorem}  CAS Theorem
2. \newdefinition command does exactly the same thing as with except that the body font is up-shape instead of italic. See the example below:
 \newdefinition{definition}{Definition} \begin{definition} The bulk and evanescent polaritons in cuprous oxide are formed through the quadrupole part of the light-matter interaction: \begin{equation*} H_{int} = \frac{i e }{m \omega_{1S}} {\bf E}_{i,s} \cdot {\bf p} \end{equation*} \end{definition}  CAS Definition
3. \newproof command helps to define proof and custom proof environments without counters as provided in the example code. Given below is an example of proof of theorem kind.
 \newproof{pot}{Proof of Theorem \ref{thm}} \begin{pot} The photon part of the polariton trapped inside the \PMS moves as it would move in a micro-cavity of the effective modal volume $V \ll 4 \pi r_{0}^{3} /3$. Consequently, it can escape through the evanescent field. This evanescent field essentially has a quantum origin and is due to tunneling through the potential caused by dielectric mismatch on the \PMS surface. Therefore, we define the \emph{evanescent} polariton (\EP) as an evanescent light - \QE coherent superposition. \end{pot}  CAS Proof

#### Enumerated and Itemized Lists

CAS class files provides an extended list processing macros which makes the usage a bit more user friendly than the default LaTeX list macros. With an optional argument to the \begin{enumerate} command, you can change the list counter type and its attributes. You can see the coding and typeset copy.

 \begin{enumerate}[1.] \item The enumerate environment starts with an optional argument ‘1.’ so that the item counter will be suffixed by a period as in the optional argument. \item If you provide a closing parenthesis to the number in the optional argument, the output will have closing parenthesis for all the item counters. \item You can use ‘(a)’ for alphabetical counter and ’(i)’ for roman counter. \begin{enumerate}[a)] \item Another level of list with alphabetical counter. \item One more item before we start another. \begin{enumerate}[(i)] \item This item has roman numeral counter. \item Another one before we close the third level. \end{enumerate} \item Third item in second level. \end{enumerate} \item All list items conclude with this step. \end{enumerate}  CAS List

#### Biography

\bio command have the below options:

1. width: Width of the author photo (default is 1in).
2. pos: Position of author photo.
\bio[width=10mm,pos=l]{tuglogo.jpg}
\textbf{Another Biography:}
Recent experimental \cite{HARA:2005} and theoretical
\cite{DEYCH:2006} studies have shown that the \WGM can travel
along the chain as "heavy photons". Therefore the \WGM acquires
the spatial dispersion, and the evanescent quadrupole polariton
has the form (See Fig.\ref{FIG:3}):
\endbio


#### CRediT authorship contribution statement

Give the authorship contribution after each author as

 \credit{Conceptualization of this study, Methodology, Software}


To print the details use \printcredits

  \author[1,3]{V. {{\=A}}nand Rawat}[auid=000, bioid=1, prefix=Sir, role=Researcher, orcid=0000-0001-7511-2910] \cormark[1] \fnmark[1] \ead{cvr_1@tug.org.in} \ead[url]{www.cvr.cc, www.tug.org.in} \credit{Conceptualization of this study, Methodology, Software} \address[1]{Indian \TeX{} Users Group, Trivandrum 695014, India} \author[2,4]{Han Theh Thanh}[style=chinese] \author[2,3]{T. Rishi Nair}[role=Co-ordinator, suffix=Jr] \fnmark[2] \ead{rishi@sayahna.org} \ead[URL]{www.sayahna.org} \credit{Data curation, Writing - Original draft preparation} . . . . . . . . . \printcredits  CAS Credit Authorship

#### Bibliography

biblatex package in combination with biber is the recommended package for bibliography processing — both citation and listing. As you are aware, biblatex offers a wide variety of bibliography citation features.