<section1> (Section One) Description .email comment.
Description
This element contains one section of a single or multi-section article. It has a title that may be preceded by a section number (held in the <no> element), and it may include text blocks or sub-sections (or both). This can be considered to be a container for a first-level heading and the text blocks that follow it up until the next first-level heading.
It is the top level of up to five numbered levels:
<section1>
  <no>1</no>
  <title>This is a Section 1</title>
  ...
  <section2>
    <no>1.1</no>
    <title>This is the first Section 2 in the Section 1</title>
    ...
    <section3>
      <no>1.1.1</no>
      <title>This is a Section 3</title>
      ...
      <section4>
        <no>1.1.1.1</no>
        <title>This is a Section 4</title>
        ...
        <section5>
          <no>1.1.1.1.1</no>
          <title>This is a Section 5</title>
          ...
        </section5>
        <section5>
          <no>1.1.1.1.2</no>
          <title>This is ANOTHER Section 5</title>
          ...
        </section5>
      </section4>
      <section4>
          <no>1.1.1.2</no>
        <title>This is ANOTHER Section 4</title>
        ...
      </section4>
    </section3>
    <section3>
      <no>1.1.2</no>
      <title>This is ANOTHER Section 3</title>
      ...
    </section3>
  </section2>
  <section2>
    <no>1.2</no>
    <title>This is ANOTHER Section 2</title>
  </section2>
</section1>
If the main section numbering re-starts part-way through the article, then <part> elements are needed to enclose each indepent group of sections.
Parent Elements
The elements listed below may directly contain this element. They are "parent" elements. Elements in referenced groups are included, up to two levels of group nesting.
Model Diagram
The DTD model for this element:
--+(sequence)
  |  
 no (optional) -- TEXT
  |  
 title  -- (TEXT and elements)
  |  
 shortsectionhead (optional) -- (TEXT and elements)
  |  
  |--+(optional and repeatable choice)
  |  |  
  |  |--+(repeatable choice) [Section Mixture]
  |  |  |  
  |  |  |-- para  -- (TEXT and elements)
  |  |  |  
  |  |  |-- figure  -- (elements)
  |  |  |  
  |  |  |-- formaltable  -- (elements)
  |  |  |  
  |  |  |-- graphic  
  |  |  |  
  |  |  |-- informaltable  -- (elements)
  |  |  |  
  |  |  |-- chemeqn  -- (elements)
  |  |  |  
  |  |  |-- unnumchemeqn  -- (elements)
  |  |  |  
  |  |  |-- formula  -- (TEXT and elements)
  |  |  |  
  |  |  |-- compound  -- (elements)
  |  |  |  
  |  |  |-- structure  
  |  |  |  
  |  |  |-- matheqn  -- (elements)
  |  |  |  
  |  |  |-- unnummatheqn  -- (elements)
  |  |  |  
  |  |  |-- simplelist  -- (elements)
  |  |  |  
  |  |  |-- itemizedlist  -- (elements)
  |  |  |  
  |  |  |-- orderedlist  -- (elements)
  |  |  |  
  |  |  |-- deflist  -- (elements)
  |  |  |  
  |  |  |-- extract  -- (elements)
  |  |  |  
  |  |  |-- poem  -- (elements)
  |  |  |  
  |  |  |-- exam  -- (elements)
  |  |  |  
  |  |  |-- index  -- (elements)
  |  |  |  
  |  |  |-- computertext  -- (TEXT and elements)
  |  |  |  
  |  |  |-- letter  -- (elements)
  |  |  |  
  |  |  |-- address-text  -- (TEXT and elements)
  |  |  |  
  |  |  |-- supplementmaterial  -- (elements)
  |  |  |  
  |  |  |-- enunciation  -- (elements)
  |  |  |  
  |  |  |-- comment  -- TEXT
  |  
 section2 (optional and repeatable) -- (elements)
DTD Definition
The DTD contains the following element and attribute definitions (note that embedded links are to definitions within the DTD page of this guide):
<!ELEMENT section1                       (no?, title, shortsectionhead?, (%SectionMix;)*, section2*)>
<!ATTLIST section1
                fulltextlink             CDATA  #IMPLIED 
                issuenum                 CDATA  #IMPLIED 
               %a-group-SectionAttrs;
               %a-group-CommonIDAttrs;
               %a-group-YearOfPubAttrs;>
.
Defined in DTD section Parts and Sections
General Attributes (shared with other elements)
Section Attributes (a-group-SectionAttrs)
Common Optional ID Attributes (a-group-CommonIDAttrs)
Year of Publication Attributes (a-group-YearOfPubAttrs)
Local Attributes (defined for this element alone)
Attribute: fulltextlink
Description
This attribute holds a URL that identifies the location and name of a PDF file that contains a rendition of this section.
Specification
This attribute is not required. It has text content.
DTD Definition
                fulltextlink             CDATA  #IMPLIED 
.
Attribute: issuenum (Issue Number)
Description
This attribute holds the issue number of the journal that contains the article. This attribute is only needed if the section is separated from the rest of the article, and the value is copied from the same attribute on the <article> or <unarticle> element.
Specification
This attribute is not required. It has text content.
DTD Definition
                issuenum                 CDATA  #IMPLIED 
.