@prefix this: <https://w3id.org/np/RA_MhTP2ukjoasjMgIU27HQ75k7F52cXQoZXSYskWT3jM> .
@prefix sub: <https://w3id.org/np/RA_MhTP2ukjoasjMgIU27HQ75k7F52cXQoZXSYskWT3jM/> .
@prefix np: <http://www.nanopub.org/nschema#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix npx: <http://purl.org/nanopub/x/> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

sub:Head {
  this: a np:Nanopublication;
    np:hasAssertion sub:assertion;
    np:hasProvenance sub:provenance;
    np:hasPublicationInfo sub:pubinfo .
}

sub:assertion {
  <https://w3id.org/delphi/resource/claim/buehler-2009-helical-networks-04> a <https://w3id.org/delphi/ontology/Claim>;
    dc:description "The maximum stress of the network depends more strongly on crack size than the failure strain does, yet a network with a crack spanning 80% of its width still reaches 57% of the strength of a flawless network.";
    dc:type "simulation-result";
    <http://www.w3.org/2000/01/rdf-schema#comment> "Notation basis: Stated in the text.";
    <http://www.w3.org/2000/01/rdf-schema#label> "Strength falls more with crack size than strain does, but an 80% crack keeps 57% of the strength";
    <http://www.w3.org/2004/02/skos/core#notation> "\\sigma_f(0.8)/\\sigma_f(0) = 0.57";
    <https://w3id.org/delphi/ontology/context> "Theodor Ackbarow et al., “Alpha-Helical Protein Networks Are Self-Protective and Flaw-Tolerant”, PLoS ONE 4, e6015 (2009), doi:10.1371/journal.pone.0006015; Results and Discussion. Scope: Mesoscale alpha-helix network model" .
}

sub:provenance {
  <https://doi.org/10.1371/journal.pone.0006015> a <https://schema.org/CreativeWork>;
    dc:bibliographicCitation "Theodor Ackbarow, Dipanjan Sen, Christian Thaulow, Markus J. Buehler. Alpha-Helical Protein Networks Are Self-Protective and Flaw-Tolerant. PLoS ONE 4, e6015 (2009). doi:10.1371/journal.pone.0006015";
    dc:creator "Theodor Ackbarow, Dipanjan Sen, Christian Thaulow, Markus J. Buehler";
    dc:date "2009"^^xsd:gYear;
    dc:identifier "PMC2696088", "doi:10.1371/journal.pone.0006015", "pmid:19547709";
    dc:title "Alpha-Helical Protein Networks Are Self-Protective and Flaw-Tolerant" .
  
  <https://europepmc.org/article/PMC/PMC2696088> a prov:Entity;
    <http://spdx.org/rdf/terms#checksum> sub:sourceChecksum;
    <http://www.w3.org/2000/01/rdf-schema#label> "Full text of Alpha-Helical Protein Networks Are Self-Protective and Flaw-Tolerant, as read";
    <https://schema.org/about> <https://doi.org/10.1371/journal.pone.0006015> .
  
  <https://w3id.org/delphi/resource/agent/delphisci-buehler-protein-materials-extractor>
    a prov:SoftwareAgent;
    <http://www.w3.org/2000/01/rdf-schema#label> "delphisci buehler-protein-materials claim extractor";
    prov:actedOnBehalfOf <https://orcid.org/0009-0007-4948-9192>;
    <https://w3id.org/delphi/ontology/usesModel> <https://w3id.org/delphi/resource/model/claude-fable-5.1> .
  
  <https://w3id.org/delphi/resource/model/claude-fable-5.1> a <https://w3id.org/delphi/ontology/LanguageModel>;
    <http://www.w3.org/2000/01/rdf-schema#label> "Claude Fable 5.1" .
  
  sub:assertion prov:wasAttributedTo <https://w3id.org/delphi/resource/agent/delphisci-buehler-protein-materials-extractor>;
    prov:wasDerivedFrom <https://doi.org/10.1371/journal.pone.0006015>, sub:quote;
    prov:wasGeneratedBy sub:extraction .
  
  sub:extraction a prov:Activity;
    prov:qualifiedAssociation sub:extractionPlan;
    prov:used <https://europepmc.org/article/PMC/PMC2696088>, <https://github.com/fractastical/delphisci/blob/b89a0890bee05ef18f8202387085854fac3ca776/claim-sources/buehler-protein-materials/inputs/sources.json>;
    prov:wasAssociatedWith <https://w3id.org/delphi/resource/agent/delphisci-buehler-protein-materials-extractor> .
  
  sub:extractionPlan prov:hadPlan <https://github.com/fractastical/delphisci/blob/b89a0890bee05ef18f8202387085854fac3ca776/claim-sources/buehler-protein-materials/build/generate.mjs> .
  
  sub:quote a prov:Entity;
    <http://www.w3.org/2000/01/rdf-schema#comment> "Quoted from the full text (cc by licence), paragraph 13 of 2009-helical-networks.txt (sha256 d35d9ea109c79b04ca4f44608c823ee0ab4e43a642147772bb6b89e3fe2d734f), vendored from Europe PMC PMC2696088 by build/resolve.py and checked by build/check.py.";
    prov:hadPrimarySource <https://europepmc.org/article/PMC/PMC2696088>;
    prov:wasQuotedFrom <https://doi.org/10.1371/journal.pone.0006015>;
    <https://schema.org/text> "However, even the system with 80% crack size still reaches 57% of the strength of a perfect structure without any defects." .
  
  sub:sourceChecksum <http://spdx.org/rdf/terms#algorithm> <http://spdx.org/rdf/terms#checksumAlgorithm_sha256>;
    <http://spdx.org/rdf/terms#checksumValue> "d35d9ea109c79b04ca4f44608c823ee0ab4e43a642147772bb6b89e3fe2d734f";
    <http://www.w3.org/2000/01/rdf-schema#comment> "Checksum of the vendored text file inputs/2009-helical-networks.txt, not of the publisher's copy." .
}

sub:pubinfo {
  <https://w3id.org/delphi/resource/domain/buehler-protein-materials> <http://www.w3.org/2000/01/rdf-schema#label>
      "buehler-protein-materials" .
  
  this: dc:created "2026-11-08T04:38:11.893Z"^^xsd:dateTime;
    dc:creator <https://orcid.org/0009-0007-4948-9192>;
    dc:license <https://creativecommons.org/licenses/by/4.0/>;
    npx:hasNanopubType <https://w3id.org/delphi/ontology/Claim>;
    npx:introduces <https://w3id.org/delphi/resource/claim/buehler-2009-helical-networks-04>;
    <http://www.w3.org/2000/01/rdf-schema#label> "Theodor Ackbarow et al. 2009 claim: Strength falls more with crack size than strain does, but an 80% crack keeps 57% of the strength";
    <https://w3id.org/delphi/ontology/domain> <https://w3id.org/delphi/resource/domain/buehler-protein-materials> .
  
  sub:sig npx:hasAlgorithm "RSA";
    npx:hasPublicKey "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyFHtPB6p0mCjDozxlOY9CmO3nBm7Te3jFbXyLmM+G1tGe47Da0jYIbhkl9Oo1ZjxmCa3LCwlEqK8gj6hEIcL4ahW30JXh9HycfKVk1bugkzMEV15tJdTzAU3sGMFnbNsn43xY2LFLy45tApkRm5byEiM7oRRrooIdwoQKnP4Wzq/bfAoJ9qvW+MGkelyOTd1jbSt+KfmT7xKmDfWzAHddUlWwMX2QJOLxDaffOteTop6ZRgPiNmPJKA/S62Gac9XtSYT3oDkZ6/nr5cxxNLpOyxTf5FPISiCe11xYO/unYjY+mwnOfA8yhJIyx1l0O9I0vpOpn+E5TvyHJV+oSTrvwIDAQAB";
    npx:hasSignature "KI1UVH79RvQjVabKD8H98/vLpEkdZdRIQi2wzK1+qUXHJYW9LUzkzUG1oLZ4SmKFOIhmyx/pdFbnnyfBdZ4x7PECupmF9KpYxzFO6BoagFOXUs95mO010P+QGq9R8qbazW4PKnchZ2Od/qd4XSuJIGNtJ57Oe6d56fcak73SYpu70GxLtAdh9DmFTThdaFaRjmXY+lsWgkVfgDrTLvStMpPuogX8Wce66zLz28bNITgVzMhvSCRGtiwwBh6HTqvmh0IkRzLuzYTsaPVyP9McqMLyKG+8yafc/0lfvMaS/UKeLIc2kHNh6mlU739Fz88nDsmdNKTZh4zX5xSZ1opDyg==";
    npx:hasSignatureTarget this:;
    npx:signedBy <https://orcid.org/0009-0007-4948-9192> .
}