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pnastwo.cls
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%\def\currversion{April 15, 2008}
\def\currversion{October 04, 2013}
%*****************************************************************%
%* *%
%* Prepared by Amy Hendrickson, TeXnology Inc. *%
%* Copyright (C) 2004 by Amy Hendrickson, TeXnology Inc., *%
%* All rights reserved. *%
%* *%
%* TeXnology Inc.: 617 738-8029 *%
%* amyh@texnology.com *%
%* www.texnology.com *%
%* *%
%* For assistance, please contact the PNAS Editorial Office: *%
%* 202-334-2679 *%
%* pnas@nas.edu *%
%* *%
%*****************************************************************%
\typeout{^^J^^J
Two Column Journal Style for the^^J
Proceedings of the National Academy of Science
^^J
Written by Amy Hendrickson, TeXnology, Inc., 9/04^^J
^^J
This version is dated \currversion^^J^^J}
\ProvidesClass{pnastwo}
\newcommand\@ptsize{}
\newif\if@restonecol
\newif\if@titlepage
\@titlepagefalse
\if@compatibility\else
\DeclareOption{a4paper}
{\setlength\paperheight {297mm}%
\setlength\paperwidth {210mm}}
\DeclareOption{a5paper}
{\setlength\paperheight {210mm}%
\setlength\paperwidth {148mm}}
\DeclareOption{b5paper}
{\setlength\paperheight {250mm}%
\setlength\paperwidth {176mm}}
\DeclareOption{letterpaper}
{\setlength\paperheight {16in}%
\setlength\paperwidth {13.5in}}
\DeclareOption{legalpaper}
{\setlength\paperheight {14in}%
\setlength\paperwidth {8.5in}}
\DeclareOption{executivepaper}
{\setlength\paperheight {10.5in}%
\setlength\paperwidth {7.25in}}
\DeclareOption{landscape}
{\setlength\@tempdima {\paperheight}%
\setlength\paperheight {\paperwidth}%
\setlength\paperwidth {\@tempdima}}
\DeclareOption{pnaspaper}
{\setlength\paperheight {11.87in}%
\setlength\paperwidth {9.12in}}
\fi
\if@compatibility
\renewcommand\@ptsize{0}
\else
\DeclareOption{10pt}{\renewcommand\@ptsize{0}}
\fi
\DeclareOption{11pt}{\renewcommand\@ptsize{1}}
\DeclareOption{12pt}{\renewcommand\@ptsize{2}}
\if@compatibility\else
\DeclareOption{oneside}{\@twosidefalse \@mparswitchfalse}
\fi
\DeclareOption{twoside}{\@twosidetrue \@mparswitchtrue}
\DeclareOption{draft}{\setlength\overfullrule{5pt}}
\if@compatibility\else
\DeclareOption{final}{\setlength\overfullrule{0pt}}
\fi
\DeclareOption{titlepage}{\@titlepagetrue}
\if@compatibility\else
\DeclareOption{notitlepage}{\@titlepagefalse}
\fi
\if@compatibility\else
\DeclareOption{onecolumn}{\@twocolumnfalse}
\fi
\DeclareOption{twocolumn}{\@twocolumntrue}
\DeclareOption{leqno}{\input{leqno.clo}}
\DeclareOption{fleqn}{\input{fleqn.clo}}
\DeclareOption{openbib}{%
\AtEndOfPackage{%
\renewcommand\@openbib@code{%
\advance\leftmargin\bibindent
\itemindent -\bibindent
\listparindent \itemindent
\parsep \z@
}%
\renewcommand\newblock{\par}}%
}
\ExecuteOptions{pnaspaper,twoside,onecolumn,final}
\ProcessOptions
\AtBeginDocument{
\RequirePackage[cam,center]{crop}
\paperwidth=8.125in
\paperheight=10.875in
\renewcommand*\CROP@horigin{-.5truein}
\renewcommand*\CROP@vorigin{-.5truein}
}%
%% size10.clo ==>>
\renewcommand\normalsize{%
\@setfontsize\normalsize\@ixpt\@xpt
\abovedisplayskip 8\p@ \@plus2\p@ \@minus5\p@
\abovedisplayshortskip \z@ \@plus3\p@
\belowdisplayshortskip 6\p@ \@plus3\p@ \@minus3\p@
\belowdisplayskip \abovedisplayskip
\topsep 0\p@
\parsep 0\p@
\let\@listi\@listI}
\normalsize
\topsep 0\p@
\parsep 0\p@
\newcommand\small{%
\@setfontsize\small\@viiipt{9}%
\abovedisplayskip 8.5\p@ \@plus3\p@ \@minus4\p@
\abovedisplayshortskip \z@ \@plus2\p@
\belowdisplayshortskip 4\p@ \@plus2\p@ \@minus2\p@
\def\@listi{\leftmargin\leftmargini
\topsep 0\p@
\parsep 0\p@
\itemsep \parsep}%
\belowdisplayskip \abovedisplayskip
}
\newcommand\footnotesize{%
\@setfontsize\footnotesize\@vipt{7}%
\abovedisplayskip 6\p@ \@plus2\p@ \@minus4\p@
\abovedisplayshortskip \z@ \@plus\p@
\belowdisplayshortskip 3\p@ \@plus\p@ \@minus2\p@
\def\@listi{\leftmargin\leftmargini
\topsep 3\p@ \@plus\p@ \@minus\p@
\parsep 2\p@ \@plus\p@ \@minus\p@
\itemsep \parsep}%
\belowdisplayskip \abovedisplayskip
}
\newcommand\scriptsize{\@setfontsize\scriptsize\@vpt\@viipt}
\newcommand\tiny{\@setfontsize\tiny\@vpt\@vipt}
\newcommand\large{\@setfontsize\large\@xiipt{14}}
\newcommand\Large{\@setfontsize\Large\@xivpt{18}}
\newcommand\LARGE{\@setfontsize\LARGE\@xviipt{22}}
\newcommand\huge{\@setfontsize\huge\@xxpt{25}}
\newcommand\Huge{\@setfontsize\Huge\@xxvpt{30}}
\if@twocolumn
\setlength\parindent{1em}
\else
\setlength\parindent{9\p@}%15\p@}
\fi
\setlength\smallskipamount{3\p@ \@plus 1\p@ \@minus 1\p@}
\setlength\medskipamount{6\p@ \@plus 2\p@ \@minus 2\p@}
\setlength\bigskipamount{12\p@ \@plus 4\p@ \@minus 4\p@}
\setlength\headheight{12\p@}
\setlength\headsep {25\p@}
\setlength\topskip {10\p@}
\setlength\footskip{30\p@}
\if@compatibility \setlength\maxdepth{4\p@} \else
\setlength\maxdepth{.5\topskip} \fi
\if@compatibility
\if@twocolumn
\setlength\textwidth{410\p@}
\else
\setlength\textwidth{345\p@}
\fi
\else
\setlength\@tempdima{\paperwidth}
\addtolength\@tempdima{-2in}
\setlength\@tempdimb{345\p@}
\if@twocolumn
\ifdim\@tempdima>2\@tempdimb\relax
\setlength\textwidth{2\@tempdimb}
\else
\setlength\textwidth{\@tempdima}
\fi
\else
\ifdim\@tempdima>\@tempdimb\relax
\setlength\textwidth{\@tempdimb}
\else
\setlength\textwidth{\@tempdima}
\fi
\fi
\fi
\if@compatibility\else
\@settopoint\textwidth
\fi
\if@compatibility
\setlength\textheight{43\baselineskip}
\else
\setlength\@tempdima{\paperheight}
\addtolength\@tempdima{-2in}
\addtolength\@tempdima{-1.5in}
\divide\@tempdima\baselineskip
\@tempcnta=\@tempdima
\setlength\textheight{\@tempcnta\baselineskip}
\fi
\addtolength\textheight{\topskip}
\if@twocolumn
\setlength\marginparsep {10\p@}
\else
\setlength\marginparsep{11\p@}
\fi
\setlength\marginparpush{5\p@}
\if@compatibility
\if@twoside
\setlength\oddsidemargin {44\p@}
\setlength\evensidemargin {82\p@}
\setlength\marginparwidth {107\p@}
\else
\setlength\oddsidemargin {63\p@}
\setlength\evensidemargin {63\p@}
\setlength\marginparwidth {90\p@}
\fi
\if@twocolumn
\setlength\oddsidemargin {30\p@}
\setlength\evensidemargin {30\p@}
\setlength\marginparwidth {48\p@}
\fi
\else
\if@twoside
\setlength\@tempdima {\paperwidth}
\addtolength\@tempdima {-\textwidth}
\setlength\oddsidemargin {.4\@tempdima}
\addtolength\oddsidemargin {-1in}
\setlength\marginparwidth {.6\@tempdima}
\addtolength\marginparwidth {-\marginparsep}
\addtolength\marginparwidth {-0.4in}
\else
\setlength\@tempdima {\paperwidth}
\addtolength\@tempdima {-\textwidth}
\setlength\oddsidemargin {.5\@tempdima}
\addtolength\oddsidemargin {-1in}
\setlength\marginparwidth {.5\@tempdima}
\addtolength\marginparwidth {-\marginparsep}
\addtolength\marginparwidth {-0.4in}
\addtolength\marginparwidth {-.4in}
\fi
\ifdim \marginparwidth >2in
\setlength\marginparwidth{2in}
\fi
\@settopoint\oddsidemargin
\@settopoint\marginparwidth
\setlength\evensidemargin {\paperwidth}
\addtolength\evensidemargin{-2in}
\addtolength\evensidemargin{-\textwidth}
\addtolength\evensidemargin{-\oddsidemargin}
\@settopoint\evensidemargin
\fi
\if@compatibility
\setlength\topmargin{27pt}
\else
\setlength\topmargin{\paperheight}
\addtolength\topmargin{-3.3in}
\addtolength\topmargin{-\headheight}
\addtolength\topmargin{-\headsep}
\addtolength\topmargin{-\textheight}
\addtolength\topmargin{-\footskip} % this might be wrong!
\addtolength\topmargin{-.5\topmargin}
\@settopoint\topmargin
\fi
\setlength\footnotesep{6.65\p@}
\setlength{\skip\footins}{19\p@ \@plus 4\p@ \@minus 2\p@}
\setlength\floatsep {12\p@ \@plus 2\p@ \@minus 2\p@}
\setlength\textfloatsep{20\p@ \@plus 2\p@ \@minus 4\p@}
\setlength\intextsep {12\p@ \@plus 2\p@ \@minus 2\p@}
\setlength\dblfloatsep {12\p@ \@plus 2\p@ \@minus 2\p@}
\setlength\dbltextfloatsep{20\p@ \@plus 2\p@ \@minus 4\p@}
\setlength\@fptop{0\p@ \@plus 1fil}
\setlength\@fpsep{8\p@ \@plus 2fil}
\setlength\@fpbot{0\p@ \@plus 1fil}
\setlength\@dblfptop{0\p@ \@plus 1fil}
\setlength\@dblfpsep{8\p@ \@plus 2fil}
\setlength\@dblfpbot{0\p@ \@plus 1fil}
\setlength\partopsep{2\p@ \@plus 1\p@ \@minus 1\p@}
\def\@listi{\leftmargin\leftmargini
\parsep 1sp%4\p@ \@plus2\p@ \@minus\p@
\topsep 8\p@ \@plus2\p@ \@minus4\p@
\itemsep1sp%4\p@ \@plus2\p@ \@minus\p@
}
\let\@listI\@listi
\@listi
\def\@listii {\leftmargin\leftmarginii
\labelwidth\leftmarginii
\advance\labelwidth-\labelsep
\topsep 4\p@ \@plus2\p@ \@minus\p@
\parsep 2\p@ \@plus\p@ \@minus\p@
\itemsep \parsep}
\def\@listiii{\leftmargin\leftmarginiii
\labelwidth\leftmarginiii
\advance\labelwidth-\labelsep
\topsep 2\p@ \@plus\p@\@minus\p@
\parsep \z@
\partopsep \p@ \@plus\z@ \@minus\p@
\itemsep \topsep}
\def\@listiv {\leftmargin\leftmarginiv
\labelwidth\leftmarginiv
\advance\labelwidth-\labelsep}
\def\@listv {\leftmargin\leftmarginv
\labelwidth\leftmarginv
\advance\labelwidth-\labelsep}
\def\@listvi {\leftmargin\leftmarginvi
\labelwidth\leftmarginvi
\advance\labelwidth-\labelsep}
%% <<== size10.clo
\setlength\lineskip{1\p@}
\setlength\normallineskip{1\p@}
\renewcommand\baselinestretch{}
\setlength\parskip{0\p@ \@plus \p@}
\@lowpenalty 51
\@medpenalty 151
\@highpenalty 301
\setcounter{topnumber}{2}
\renewcommand\topfraction{.7}
\setcounter{bottomnumber}{1}
\renewcommand\bottomfraction{.3}
\setcounter{totalnumber}{3}
\renewcommand\textfraction{.2}
\renewcommand\floatpagefraction{.5}
\setcounter{dbltopnumber}{2}
\renewcommand\dbltopfraction{.7}
\renewcommand\dblfloatpagefraction{.5}
\newif\iftitlepage
\def\ps@headings{%
\let\@evenhead\relax
\def\@oddhead{\hfill\rlap{\hskip14pt\vtop to 0pt{\vskip-1pt\makesidesquares
\vss}}}%
\def\@oddfoot{%
%\leftnumber
{\dospecialaccents%
\iftitlepage\global\titlepagefalse%
\footlinefont
\ifodd\c@page
\hbox to \textwidth{\footlinefont \let\it\footlineit
\theurl\hfill\footlinefont PNAS\hskip6pt \vrule depth 2pt\hskip6pt
{\foliofont\theissuedate}\hskip6pt\vrule\hskip6pt\thevolume\hskip6pt
\vrule\hskip6pt\theissuenumber\hskip6pt \vrule\hskip6pt
{\foliofont\the\c@page{\footlineit--}\expandafter\ifx\csname
lastpage\endcsname\relax ??\else\lastpage\fi}}%
\else
\hbox to \textwidth{\footlinefont \let\it\footlineit
{\foliofont\the\c@page{\footlineit--}\expandafter\ifx\csname
lastpage\endcsname\relax ??\else\lastpage\fi}\hskip6pt
\vrule depth 2pt\hskip6pt PNAS\hskip6pt
\vrule\hskip6pt{\foliofont\theissuedate}\hskip6pt\vrule\hskip6pt
\thevolume\hskip6pt\vrule\hskip6pt\theissuenumber\hfill
\theurl}%
\fi\else%
\ifodd\c@page
\hbox to\textwidth{{\let\it\footlineit\footlinefont\thefootlineauthor}\hfill
\footlinefont PNAS\hskip6pt\vrule depth 2pt\hskip6pt{\foliofont\theissuedate}%
\hskip6pt\vrule depth2pt\hskip6pt\thevolume\hskip6pt\vrule depth 2pt\hskip6pt\theissuenumber\hskip6pt\vrule\hskip6pt{\foliofont\the\c@page}}%
\else%
\hbox to\textwidth{\let\it\footlineit\footlinefont{\foliofont \the\c@page}%
\hskip6pt\vrule depth 2pt height 6pt\hskip6pt\theurl\hfill\thefootlineauthor}\fi\fi}%\rightnumber
}
\let\@evenfoot\@oddfoot
%
\let\@mkboth\markboth
\def\sectionmark##1{%
\markboth {\MakeUppercase{%
\ifnum \c@secnumdepth >\z@
\thesection\quad
\fi
##1}}{}}%
\def\subsectionmark##1{%
\markright {%
\ifnum \c@secnumdepth >\@ne
\thesubsection\quad
\fi
##1}}}
\newcount\affilcount
\newcount\saveaffilcount
\newcount\c@fnaffilcount
\def\affil#1#2{\normalsize\affilfont\ \affilcount=#1
\ifnum\affilcount>\saveaffilcount\global\saveaffilcount\affilcount\fi
\expandafter\ifx\csname affil\the\affilcount\endcsname\relax
\global\advance\c@footnote by1
\expandafter\xdef\csname affilsymb\the\affilcount\endcsname%
{\the\c@footnote}{$^{\@fnsymbol\c@footnote}$}%
\expandafter\gdef\csname affil\the\affilcount\endcsname{#2}\else
$^{\expandafter\@fnsymbol\csname affilsymb\the\affilcount\endcsname}$
\fi\authorfont}
\newcommand\maketitle{\par
\global\titlepagetrue
\begingroup
\dospecialaccents
\parindent=0pt
\def\and{ and }
\renewcommand\thefootnote{\@fnsymbol\c@footnote}%
\def\@makefnmark{\rlap{\@textsuperscript{\normalfont\@thefnmark}}}%
\long\def\@makefntext##1{\parindent0pt\noindent
\@textsuperscript{\normalfont\@thefnmark}##1}%
\newpage
\global\@topnum\z@ % Prevents figures from going at top of page.
\@maketitle
\@thanks
% according to sample, Dec 2007, copyright no longer wanted here
% \renewcommand\thefootnote{}%
% \footnotetext{\vrule height 8pt width0pt\copyright \thecopyrightyear\ by The % National Academy of Sciences of the USA}
\endgroup
\setcounter{footnote}{0}%
\global\let\thanks\relax
\global\let\maketitle\relax
\global\let\@maketitle\relax
\global\let\@thanks\@empty
\global\let\@author\@empty
\global\let\@date\@empty
\global\let\@title\@empty
\global\let\@contributor\@empty
\global\let\title\relax
\global\let\date\relax
\global\let\and\relax
}
\def\@maketitle{%
\global\firsttimetrue
%% To get equation numbers in square brackets and bold
\gdef\tagform@##1{\maketag@@@{\bf[\hskip1pt\ignorespaces##1\unskip\@@italiccorr\hskip1pt]}}
\gdef\@eqnnum{{\normalfont\bf \normalcolor [\hskip1pt\theequation\hskip1pt]}}
\newpage
\def\\ {\vskip1pt}
\let \footnote \thanks
{\hsize=\textwidth \raggedright
\noindent\huge\baselineskip= 24pt\titlefont \@title \par}%
\vskip6pt
{\normalsize\authorfont
\@author
\par
{\vskip4pt
\raggedright
\affilcount=0
\footnotesize\affilfont
\loop \ifnum\affilcount< \saveaffilcount
\expandafter\ifx\csname affil\the\affilcount\endcsname\relax\else
$^{\expandafter\@fnsymbol\csname affilsymb\the\affilcount\endcsname}$%
\csname affil\the\affilcount\endcsname,\fi
\global\advance\affilcount by1
\repeat\ifnum\saveaffilcount=1\else\ and \fi
$^{\expandafter\@fnsymbol\csname affilsymb\the\affilcount\endcsname}$%
\expandafter\csname affil\the\affilcount\endcsname
}}%
\vskip 4pt%
{\affilfont \@contributor}%
\par
\vskip 1.5em}
\def\contributor#1{\def\@contributor{#1}}
\let\@contributor\relax
\contributor{Submitted to Proceedings
of the National Academy of Sciences of the United States of America}
\setcounter{secnumdepth}{3}
\newcounter {part}
\newcounter {section}
\newcounter {subsection}[section]
\newcounter {subsubsection}[subsection]
\newcounter {paragraph}[subsubsection]
\newcounter {subparagraph}[paragraph]
\renewcommand \thepart {\@Roman\c@part}
\renewcommand \thesection {\@arabic\c@section}
\renewcommand\thesubsection {\thesection.\@arabic\c@subsection}
\renewcommand\thesubsubsection{\thesubsection .\@arabic\c@subsubsection}
\renewcommand\theparagraph {\thesubsubsection.\@arabic\c@paragraph}
\renewcommand\thesubparagraph {\theparagraph.\@arabic\c@subparagraph}
\newcommand\part{%
\if@noskipsec \leavevmode \fi
\par
\addvspace{4ex}%
\@afterindentfalse
\secdef\@part\@spart}
\def\@part[#1]#2{%
\ifnum \c@secnumdepth >\m@ne
\refstepcounter{part}%
\addcontentsline{toc}{part}{\thepart\hspace{1em}#1}%
\else
\addcontentsline{toc}{part}{#1}%
\fi
{\parindent \z@ \raggedright
\interlinepenalty \@M
\normalfont
\ifnum \c@secnumdepth >\m@ne
\Large\bfseries \partname~\thepart
\par\nobreak
\fi
\huge \bfseries #2%
\markboth{}{}\par}%
\nobreak
\vskip 3ex
\@afterheading}
\def\@spart#1{%
{\parindent \z@ \raggedright
\interlinepenalty \@M
\normalfont
\huge \bfseries #1\par}%
\nobreak
\vskip 3ex
\@afterheading}
\def\@startsection#1#2#3#4#5#6{%
\if@noskipsec \leavevmode \fi
\par
\@tempskipa #4\relax
\@afterindenttrue
\ifdim \@tempskipa <\z@
\@tempskipa -\@tempskipa \@afterindentfalse
\fi
\if@nobreak
\everypar{}%
\else
\addpenalty\@secpenalty\addvspace\@tempskipa
\fi
\@ifstar
{\@ssect{#3}{#4}{#5}{#6}}%
{\@dblarg{\@sect{#1}{#2}{#3}{#4}{#5}{#6}}}}
\def\@sect#1#2#3#4#5#6[#7]#8{%
\ifnum #2>\c@secnumdepth
\let\@svsec\@empty
\else
\refstepcounter{#1}%
\protected@edef\@svsec{\@seccntformat{#1}\relax}%
\fi
\@tempskipa #5\relax
\ifdim \@tempskipa>\z@
\begingroup
#6{%
\@hangfrom{\hskip #3\relax\@svsec
}%
\interlinepenalty \@M #8\@@par}%
\endgroup
\csname #1mark\endcsname{#7}%
\addcontentsline{toc}{#1}{%
\ifnum #2>\c@secnumdepth \else
\protect\numberline{\csname the#1\endcsname}%
\fi
#7}%
\else
\def\@svsechd{%
#6{\hskip #3\relax
\@svsec #8\ifnum#2=2.\fi}% <<==
\csname #1mark\endcsname{#7}%
\addcontentsline{toc}{#1}{%
\ifnum #2>\c@secnumdepth \else
\protect\numberline{\csname the#1\endcsname}%
\fi
#7}}%
\fi
\@xsect{#5}}
\newcommand\section{\@startsection {section}{1}{\z@}%
{-10pt \@plus -1ex \@minus -.2ex}%
{.5ex }%
{\normalfont\Large\bfseries\sectionfont}}
\newcommand\subsection{\@startsection{subsection}{2}{\z@}%
{10pt\@plus 1ex \@minus .2ex}%
{-0.5ex \@plus .2ex}%
{\normalfont\large\bfseries\subsectionfont}}
\newcommand\subsubsection{\@startsection{subsubsection}{3}{\z@}%
{-3.25ex\@plus -1ex \@minus -.2ex}%
{1.5ex \@plus .2ex}%
{\normalfont\normalsize\bfseries}}
\newcommand\paragraph{\@startsection{paragraph}{4}{\z@}%
{3.25ex \@plus1ex \@minus.2ex}%
{-1em}%
{\normalfont\normalsize\bfseries}}
\newcommand\subparagraph{\@startsection{subparagraph}{5}{\parindent}%
{3.25ex \@plus1ex \@minus .2ex}%
{-1em}%
{\normalfont\normalsize\bfseries}}
\setlength\leftmargini {12pt}
\leftmargin \leftmargini
\setlength\leftmarginii {12pt}
\setlength\leftmarginiii {12pt}
\setlength\leftmarginiv {12pt}
\if@twocolumn
\setlength\leftmarginv {.5em}
\setlength\leftmarginvi {.5em}
\else
\setlength\leftmarginv {1em}
\setlength\leftmarginvi {1em}
\fi
\setlength \labelsep {.5em}
\setlength \labelwidth{\leftmargini}
\addtolength\labelwidth{-\labelsep}
\@beginparpenalty -\@lowpenalty
\@endparpenalty -\@lowpenalty
\@itempenalty -\@lowpenalty
\renewcommand\theenumi{\@arabic\c@enumi}
\renewcommand\theenumii{\@alph\c@enumii}
\renewcommand\theenumiii{\@roman\c@enumiii}
\renewcommand\theenumiv{\@Alph\c@enumiv}
\newcommand\labelenumi{\theenumi.}
\newcommand\labelenumii{(\theenumii)}
\newcommand\labelenumiii{\theenumiii.}
\newcommand\labelenumiv{\theenumiv.}
\renewcommand\p@enumii{\theenumi}
\renewcommand\p@enumiii{\theenumi(\theenumii)}
\renewcommand\p@enumiv{\p@enumiii\theenumiii}
\newcommand\labelitemi{\raise1.5pt\llap{\small\textbullet\hskip2pt}}
\newcommand\labelitemii{\normalfont\bfseries \textendash}
\newcommand\labelitemiii{\textasteriskcentered}
\newcommand\labelitemiv{\textperiodcentered}
\newenvironment{description}
{\list{}{\labelwidth\z@ \itemindent-\leftmargin
\let\makelabel\descriptionlabel}}
{\endlist}
\newcommand*\descriptionlabel[1]{\hspace\labelsep
\normalfont\bfseries #1}
\def\abstract{\bgroup
\parindent=0pt
\hsize=\columnwidth
\font\it\helveticaboldoblique at 8pt
\font\bf\helveticabold at 8pt
\def\textit##1{{\it ##1}}
\def\textbf##1{{\bf ##1}}
\small
\abstractfont\dospecialaccents}
\def\endabstract{\vskip11pt
\egroup}
\newenvironment{verse}
{\let\\\@centercr
\list{}{\itemsep \z@
\itemindent -1.5em%
\listparindent\itemindent
\rightmargin \leftmargin
\advance\leftmargin 1.5em}%
\item\relax}
{\endlist}
\newenvironment{quotation}
{\list{}{\listparindent 1.5em%
\itemindent \listparindent
\rightmargin \leftmargin
\parsep \z@ \@plus\p@}%
\item\relax}
{\endlist}
\newenvironment{quote}
{\list{}{\rightmargin\leftmargin}%
\item\relax}
{\endlist}
\if@compatibility
\newenvironment{titlepage}
{%
\if@twocolumn
\@restonecoltrue\onecolumn
\else
\@restonecolfalse\newpage
\fi
\setcounter{page}\z@
}%
{\if@restonecol\twocolumn \else \newpage \fi
}
\else
\newenvironment{titlepage}
{%
\if@twocolumn
\@restonecoltrue\onecolumn
\else
\@restonecolfalse\newpage
\fi
\setcounter{page}\@ne
}%
{\if@restonecol\twocolumn \else \newpage \fi
\if@twoside\else
\setcounter{page}\@ne
\fi
}
\fi
\newcommand\appendix{\par
\setcounter{section}{0}%
\setcounter{subsection}{0}%
\gdef\thesection{\@Alph\c@section}}
\setlength\arraycolsep{5\p@}
\setlength\tabcolsep{6\p@}
\setlength\arrayrulewidth{.4\p@}
\setlength\doublerulesep{2\p@}
\setlength\tabbingsep{\labelsep}
\skip\@mpfootins = \skip\footins
\setlength\fboxsep{3\p@}
\setlength\fboxrule{.4\p@}
\renewcommand \theequation {\@arabic\c@equation}
\newcounter{figure}
\renewcommand \thefigure {\@arabic\c@figure}
\def\fps@figure{tbp}
\def\ftype@figure{1}
\def\ext@figure{lof}
\def\fnum@figure{\figurename~\thefigure}
\newenvironment{figure}
{\@float{figure}}
{\end@float}
\newenvironment{figure*}
{\@dblfloat{figure}}
{\end@dblfloat}
\newcounter{table}
\renewcommand\thetable{\@arabic\c@table}
\def\fps@table{tbp}
\def\ftype@table{2}
\def\ext@table{lot}
\def\fnum@table{\tablename~\thetable}
\newenvironment{table}
{\@float{table}}
{\end@float}
\newenvironment{table*}
{\@dblfloat{table}}
{\end@dblfloat}
\newenvironment{xtable}
{\@dblfloat{table}}
{\end@dblfloat}
\newenvironment{xfigure}
{\@dblfloat{figure}}
{\end@dblfloat}
\newlength\abovecaptionskip
\newlength\belowcaptionskip
\setlength\abovecaptionskip{2\p@}
\setlength\belowcaptionskip{4\p@}
\long\def\@makecaption#1#2{%
\ifx\@captype\xtable
\let\currtabcaption\relax
\gdef\currtabcaption{%
\tabnumfont\relax #1.\tabtextfont\hskip8\p@\relax#2\par
\vskip\belowcaptionskip
}
\else
\vskip\abovecaptionskip
\sbox\@tempboxa{\fignumfont#1.\figtextfont\hskip8\p@\relax #2}%
\ifdim \wd\@tempboxa >\hsize
\fignumfont\relax #1.\figtextfont\hskip8\p@\relax#2\par
\else
\global \@minipagefalse
\hb@xt@\hsize{\hfil\box\@tempboxa\hfil}%
\fi
\fi
}
\DeclareOldFontCommand{\rm}{\normalfont\rmfamily}{\mathrm}
\DeclareOldFontCommand{\sf}{\normalfont\sffamily}{\mathsf}
\DeclareOldFontCommand{\tt}{\normalfont\ttfamily}{\mathtt}
\DeclareOldFontCommand{\bf}{\normalfont\bfseries}{\mathbf}
\DeclareOldFontCommand{\it}{\normalfont\itshape}{\mathit}
\DeclareOldFontCommand{\sl}{\normalfont\slshape}{\@nomath\sl}
\DeclareOldFontCommand{\sc}{\normalfont\scshape}{\@nomath\sc}
\DeclareRobustCommand*\cal{\@fontswitch\relax\mathcal}
\DeclareRobustCommand*\mit{\@fontswitch\relax\mathnormal}
\newcommand\@pnumwidth{1.55em}
\newcommand\@tocrmarg{2.55em}
\newcommand\@dotsep{4.5}
\setcounter{tocdepth}{3}
\newcommand\tableofcontents{%
\section*{\contentsname
\@mkboth{%
\MakeUppercase\contentsname}{\MakeUppercase\contentsname}}%
\@starttoc{toc}%
}
\newcommand*\l@part[2]{%
\ifnum \c@tocdepth >-2\relax
\addpenalty\@secpenalty
\addvspace{2.25em \@plus\p@}%
\begingroup
\parindent \z@ \rightskip \@pnumwidth
\parfillskip -\@pnumwidth
{\leavevmode
\large \bfseries #1\hfil \hb@xt@\@pnumwidth{\hss #2}}\par
\nobreak
\if@compatibility
\global\@nobreaktrue
\everypar{\global\@nobreakfalse\everypar{}}%
\fi
\endgroup
\fi}
\newcommand*\l@section[2]{%
\ifnum \c@tocdepth >\z@
\addpenalty\@secpenalty
\addvspace{1.0em \@plus\p@}%
\setlength\@tempdima{1.5em}%
\begingroup
\parindent \z@ \rightskip \@pnumwidth
\parfillskip -\@pnumwidth
\leavevmode \bfseries
\advance\leftskip\@tempdima
\hskip -\leftskip
#1\nobreak\hfil \nobreak\hb@xt@\@pnumwidth{\hss #2}\par
\endgroup
\fi}
\newcommand*\l@subsection{\@dottedtocline{2}{1.5em}{2.3em}}
\newcommand*\l@subsubsection{\@dottedtocline{3}{3.8em}{3.2em}}
\newcommand*\l@paragraph{\@dottedtocline{4}{7.0em}{4.1em}}
\newcommand*\l@subparagraph{\@dottedtocline{5}{10em}{5em}}
\newcommand\listoffigures{%
\section*{\listfigurename
\@mkboth{\MakeUppercase\listfigurename}%
{\MakeUppercase\listfigurename}}%
\@starttoc{lof}%
}
\newcommand*\l@figure{\@dottedtocline{1}{1.5em}{2.3em}}
\newcommand\listoftables{%
\section*{\listtablename
\@mkboth{%
\MakeUppercase\listtablename}{\MakeUppercase\listtablename}}%
\@starttoc{lot}%
}
\let\l@table\l@figure
\newdimen\bibindent
\setlength\bibindent{1.5em}
\newskip\bibskip
\bibskip=0pt plus 3pt
\newenvironment{thebibliography}[1]
{\endgroup\endtwocolumns\vskip24pt\twocolumns\begingroup
\def\@currenvir{thebibliography}
\let\savebibitem\bibitem
\def\bibitem{\vskip\bibskip\savebibitem}
\tiny\baselineskip=8pt\bibfont
\let\it\bibitfont
\let\bf\bibbffont
\let\em\bibitfont
\let\sc\bibfont
\def\textit##1{{\bibitfont ##1}}
\def\textbf##1{{\bibbffont ##1}}
\list{\@biblabel{\@arabic\c@enumiv}}%
{\settowidth\labelwidth{\@biblabel{#1}}%
\leftmargin\labelwidth
\advance\leftmargin\labelsep
\@openbib@code
\usecounter{enumiv}%
\let\p@enumiv\@empty
\renewcommand\theenumiv{\@arabic\c@enumiv}}%
\sloppy
\clubpenalty4000
\@clubpenalty \clubpenalty
\widowpenalty4000%
\sfcode`\.\@m}
{\def\@noitemerr
{\@latex@warning{Empty `thebibliography' environment}}%
\endlist
}
\newcommand\newblock{\hskip .11em\@plus.33em\@minus.07em}
\let\@openbib@code\@empty
%\renewcommand\footnoterule{%
% \kern-3\p@
% \hrule\@width6pc%.4\columnwidth
% \kern2.6\p@}
\renewcommand\footnoterule{%
\ifx \@significancetext\@empty
\kern-3\p@
\hrule\@width6pc%.4\columnwidth
\kern2.6\p@
\else
\ifnum\thepage=1
\renewcommand\footnoterule{}
\else
\kern-3\p@
\hrule\@width6pc%.4\columnwidth
\kern2.6\p@
\fi
\fi
}
\newcommand\@makefntext[1]{%
\parindent 1em%
\noindent
\hb@xt@1.8em{\hss\@makefnmark}#1}
\newcommand\contentsname{Contents}
\newcommand\listfigurename{List of Figures}
\newcommand\listtablename{List of Tables}
\newcommand\refname{References}
\newcommand\indexname{Index}
\newcommand\figurename{Fig.}
\newcommand\tablename{Table}
\newcommand\partname{Part}
\newcommand\appendixname{Appendix}
\newcommand\abstractname{Abstract}
\def\today{\ifcase\month\or
January\or February\or March\or April\or May\or June\or
July\or August\or September\or October\or November\or December\fi
\space\number\day, \number\year}
\setlength\columnsep{10\p@}
\setlength\columnseprule{0\p@}
\pagenumbering{arabic}
\if@twoside
\else
\raggedbottom
\fi
\if@twocolumn
\twocolumn
\sloppy
\flushbottom
\else
\onecolumn
\fi
%%%%%%%%%%%%%%%%%
% Additions to article.cls for PNASONE ==>>
%%%%%%%%%%%%%%%%%
\hoffset-.5in
\pagestyle{headings}
\textwidth= 42.5pc
\textheight= 56.2pc
\def\xrelax{\relax}
%%%%%%%%%%%%%%%%%%%%%%%% For Line numbers %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newcounter{cms}
\def\leftnumber{\setlength{\unitlength}{1pt}
\begin{picture}(0,0)
\multiput(-45,688)(0,-10){68}{\addtocounter
{cms}{1}{\fontsize{9}{10.5}\selectfont\arabic{cms}\par}}
\end{picture}
}
\def\rightnumber{\setlength{\unitlength}{1pt}
\begin{picture}(0,0)
\multiput(6,688)(0,-10){68}{\addtocounter
{cms}{1}{\fontsize{9}{10.5}\selectfont\arabic{cms}\par}}
\end{picture}
}
%%%%%%%%%%%%%%%%%%%%%%%% For Line numbers %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%
%% Footnotes, endnotes
\newcount\footnum
\newcount\savefootnum
\def\notes{
{\ifnum\footnum=0\else
\savefootnum=\footnum
\footnum=0
\noindent\loop\ifnum\savefootnum>\footnum%
\global\advance\footnum by1\relax%
\csname foot\the\footnum\endcsname\relax%
\expandafter\gdef\csname foot\the\footnum\endcsname{\relax}\relax%
\repeat\global\footnum=0\relax\fi}}
\long\def\endnotes#1{\global\advance\footnum by 1\relax$^{\the\footnum}$%
\long\expandafter\gdef\csname foot\the\footnum\endcsname{%
\vbox{\footnotesize\everypar={\hskip-10pt\everypar={}}
\leftskip=10pt\relax
\noindent\hbox to10pt{\the\footnum.\hfill}{\def\@currentlabel{\the\footnum}%
#1\strut\vskip1sp}}\vskip1pt}}
\def\endnotetext#1{\global\advance\footnum by 1\relax
\long\expandafter\gdef\csname foot\the\footnum\endcsname{%
\vtop{\footnotesize%
\leftskip=12pt\relax\parindent=-12pt
\indent\hbox to12pt{\the\footnum.\hfill}{#1\strut\vskip1sp}}\vskip1pt}}
%\let\footnote\endnotes
\setlength\oddsidemargin {3\p@}
\setlength\evensidemargin {-3\p@}
\def\dropcap#1{\setbox1=\hbox{\dropcapfont\uppercase{#1}\hskip1pt}
\hangindent=\wd1
\hangafter-2
\noindent\llap{\vbox to0pt{\vskip-7pt\copy1\vss}}}
%%% Theorem environment %%%%%%%%%
%% added \theoremfont for theorem name and number
\def\@begintheorem#1#2{\trivlist
\item[\hskip \labelsep{\theoremfont #1\ #2.}]\itshape}
\def\@opargbegintheorem#1#2#3{\trivlist
\item[\hskip \labelsep{\theoremfont #1\ #2.\ (#3)}]\itshape}
\def\@endtheorem{\endtrivlist}
%%%%%%
%%Macros for Footline on titlepage