https://w3id.org/np/RA-T4ChsgnC-e-4_KyQivkzFLyL_LctAHUDTPxkxDvET4
.trig | .trig.txt | .jelly | .jelly.txt | .jsonld | .jsonld.txt | .nq | .nq.txt | .xml | .xml.txt
@prefix this: <https://w3id.org/np/RA-T4ChsgnC-e-4_KyQivkzFLyL_LctAHUDTPxkxDvET4> .
@prefix sub: <https://w3id.org/np/RA-T4ChsgnC-e-4_KyQivkzFLyL_LctAHUDTPxkxDvET4/> .
@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-06> a <https://w3id.org/delphi/ontology/Claim>;
dc:description "Linear elastic fracture mechanics predicts the failure strain of a centre-cracked panel to scale as χ^−0.5 with relative crack size; a power-law fit to the simulations gives an exponent of −0.0362, so LEFM fails to describe the alpha-helix network.";
dc:type "mathematical-law";
<http://www.w3.org/2000/01/rdf-schema#comment> "Notation basis: Both exponents are in the text; the LEFM expression itself (eq. 1–2) is an image not in the vendored text. The χ^−1/2 form follows from Griffith's σ_f = sqrt(2Eγ/(πξ)) with ε = σ/E.";
<http://www.w3.org/2000/01/rdf-schema#label> "Griffith scaling predicts χ^−0.5; the network's failure strain scales as χ^−0.036";
<http://www.w3.org/2004/02/skos/core#notation> "\\varepsilon_f^{\\mathrm{LEFM}} \\propto \\chi^{-1/2} \\quad \\text{vs} \\quad \\varepsilon_f^{\\mathrm{sim}} \\propto \\chi^{-0.0362}";
<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: Centre-cracked alpha-helix network under mode I tension" .
}
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 20 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> "This analysis reveals that the scaling parameter a of versus χ are much different (−0.0362 vs. −0.5), and that the conventional LEFM model fails to describe the failure behavior of this system." .
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-06>;
<http://www.w3.org/2000/01/rdf-schema#label> "Theodor Ackbarow et al. 2009 claim: Griffith scaling predicts χ^−0.5; the network's failure strain scales as χ^−0.036";
<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 "kZrIUw1tg9gLDZGiUKAGzy0Akv86FFf98qQKUDqt5kcntPxxWZpqIkHunO0IAjOJxWgJBcQFeSJbRh04eELSKgjgag4HtIbZzm9jCyE1uWmq5F0qv2xBHW4Luh+N+wB/MpWaXgdw/1hOssd1ioND1UTCYHqnB1F2GQm8KB9F/qUQTZCh0iEl6TMUwAx1j/QHWtj+Zy8hfwMpcS7edMH54vP43hOEH4+j7x+qKexAaDfmXcXBvCn+0uLtidONJsGiskfJCFSAprST3uNz3QOLllc9T5BRbQjQjNfTXR8yztJ46TQESiBHqe+o+RdNXEbMowWWkAOYruezrKkbbObOgw==";
npx:hasSignatureTarget this:;
npx:signedBy <https://orcid.org/0009-0007-4948-9192> .
}