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    <journal-meta>
      <journal-id journal-id-type="nlm-ta">reapress</journal-id>
      <journal-id journal-id-type="publisher-id">null</journal-id>
      <journal-title>reapress</journal-title><issn pub-type="ppub">3042-3058</issn><issn pub-type="epub">3042-3058</issn><publisher>
      	<publisher-name>reapress</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">https://doi.org/10.48314/isti.vi.38</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Research Article</subject>
        </subj-group>
        <subj-group><subject>Superhypergraphs, Hypergraphs, Biochemical graph, Electrochemical graph, Physicochemi-cal graph, Chemical graph.</subject></subj-group>
      </article-categories>
      <title-group>
        <article-title>Note for Biochemical/Electrochemical/Physicochemical Hypergraphs and Superhypergraphs</article-title><subtitle>Note for Biochemical/Electrochemical/Physicochemical Hypergraphs and Superhypergraphs</subtitle></title-group>
      <contrib-group><contrib contrib-type="author">
	<name name-style="western">
	<surname>Fujita</surname>
		<given-names>Takaaki</given-names>
	</name>
	<aff>Independent Researcher, Shinjuku, Shinjuku-ku, Tokyo, Japan.</aff>
	</contrib></contrib-group>		
      <pub-date pub-type="ppub">
        <month>09</month>
        <year>2025</year>
      </pub-date>
      <pub-date pub-type="epub">
        <day>15</day>
        <month>09</month>
        <year>2025</year>
      </pub-date>
      <volume>2</volume>
      <issue>3</issue>
      <permissions>
        <copyright-statement>© 2025 reapress</copyright-statement>
        <copyright-year>2025</copyright-year>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/2.5/"><p>This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</p></license>
      </permissions>
      <related-article related-article-type="companion" vol="2" page="e235" id="RA1" ext-link-type="pmc">
			<article-title>Note for Biochemical/Electrochemical/Physicochemical Hypergraphs and Superhypergraphs</article-title>
      </related-article>
	  <abstract abstract-type="toc">
		<p>
			A Chemical Graph represents a molecule where atoms are vertices and chemical bonds are edges, thereby modeling molecular structure mathematically (cf.[1, 2, 3, 4, 5]). A Chemical Hypergraph is a specialized multilevel hypergraph that models an entire chemical system by representing atoms, chemical bonds, molecules, and reactions as layered hyperedges across different levels (cf.[6, 7, 8]). A Chemical Superhyper-graph is a hierarchical, multi-level structure that models atoms, chemical bonds, molecular substructures, complete molecules, and higher-order aggregates as nested hyperedges, each associated with quantitative weights. In this paper, we investigate whether new concepts such as the Biochemical Graph, Electrochemical Graph, Physicochemical Graph, and Medichemical Graph can be formally defined. We also explore whether their corresponding HyperGraph and SuperHyperGraph extensions can be constructed. This work is primarily a theoretical study conducted at a conceptual level; however, we expect that future research by domain experts will further examine the practical effectiveness and applications of these proposed frameworks.
		</p>
		</abstract>
    </article-meta>
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