PMC:7594251 / 61658-62283 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7594251","sourcedb":"PMC","sourceid":"7594251","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7594251","text":"The signal intensity of the diffusing molecules depends on three factors, as described by Equation (3) [294]:(5) I=I0e−Dγ2g2δ2  where I is the observed intensity, I0 the reference intensity (unattenuated signal intensity), D is, of course, the diffusion coefficient referred to earlier, γ is the gyromagnetic ratio of the observed nucleus, g is the strength of the gradient, δ the length of the gradient, and ∆ the diffusion time [294]. From Equation (3), it is easy to see that the signal intensity decreases exponentially with time, so it is vital to optimize the values of g, δ, and ∆ for diffusion NMR measurements [294].","divisions":[{"label":"label","span":{"begin":109,"end":112}}],"tracks":[{"project":"LitCovid-PD-CLO","denotations":[{"id":"T450","span":{"begin":4,"end":10},"obj":"http://purl.obolibrary.org/obo/SO_0000418"},{"id":"T451","span":{"begin":122,"end":124},"obj":"http://purl.obolibrary.org/obo/CLO_0003414"},{"id":"T452","span":{"begin":204,"end":210},"obj":"http://purl.obolibrary.org/obo/SO_0000418"},{"id":"T453","span":{"begin":483,"end":489},"obj":"http://purl.obolibrary.org/obo/SO_0000418"}],"attributes":[{"subj":"T450","pred":"source","obj":"LitCovid-PD-CLO"},{"subj":"T451","pred":"source","obj":"LitCovid-PD-CLO"},{"subj":"T452","pred":"source","obj":"LitCovid-PD-CLO"},{"subj":"T453","pred":"source","obj":"LitCovid-PD-CLO"}]},{"project":"LitCovid-PD-CHEBI","denotations":[{"id":"T33217","span":{"begin":38,"end":47},"obj":"Chemical"},{"id":"T4015","span":{"begin":331,"end":338},"obj":"Chemical"}],"attributes":[{"id":"A95906","pred":"chebi_id","subj":"T33217","obj":"http://purl.obolibrary.org/obo/CHEBI_25367"},{"id":"A69556","pred":"chebi_id","subj":"T4015","obj":"http://purl.obolibrary.org/obo/CHEBI_33252"},{"subj":"T33217","pred":"source","obj":"LitCovid-PD-CHEBI"},{"subj":"T4015","pred":"source","obj":"LitCovid-PD-CHEBI"}]},{"project":"LitCovid-sentences","denotations":[{"id":"T427","span":{"begin":0,"end":436},"obj":"Sentence"},{"id":"T428","span":{"begin":437,"end":625},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"attributes":[{"subj":"T427","pred":"source","obj":"LitCovid-sentences"},{"subj":"T428","pred":"source","obj":"LitCovid-sentences"}]}],"config":{"attribute types":[{"pred":"source","value type":"selection","values":[{"id":"LitCovid-PD-CLO","color":"#ecdc93","default":true},{"id":"LitCovid-PD-CHEBI","color":"#c293ec"},{"id":"LitCovid-sentences","color":"#93eca8"}]}]}}