PMC:7455036 / 4094-4954 JSONTXT

{"project":"LitCovid-PD-MONDO","denotations":[{"id":"T17","span":{"begin":370,"end":379},"obj":"Disease"},{"id":"T18","span":{"begin":532,"end":541},"obj":"Disease"}],"attributes":[{"id":"A17","pred":"mondo_id","subj":"T17","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"},{"id":"A18","pred":"mondo_id","subj":"T18","obj":"http://purl.obolibrary.org/obo/MONDO_0005550"}],"text":"Establishing a classical SIR model\nThe present study used the classic SIR model to build a mathematical model, where S represents susceptible individuals; I, infected individuals; and R, recovered individuals.\nSuppose i (t), s (t) and r (t) represent the numbers of infected, uninfected and recovered individuals, respectively, at time t. Meanwhile, the effective daily infection rate β is defined as λ×p, where λ is the number of infected and healthy individuals’ effective contacts with infected individuals per day, and p is the infection probability during each contact. The model equations were established to be i(t+Δt)−i(t)=i(t)×β×s(t)N×Δt−i(t)×μ×Δt(1) s(t+Δt)−s(t)=−i(t)×β×s(t)N×Δt(2) r(t+Δt)−r(t)=i(t)×μ×Δt(3) where s(t)N represents the proportion of healthy individuals involved in the effective contacts, since only they can transmit the disease."}

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T13","span":{"begin":13,"end":14},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T14","span":{"begin":89,"end":90},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T15","span":{"begin":225,"end":230},"obj":"http://purl.obolibrary.org/obo/CLO_0009141"},{"id":"T16","span":{"begin":225,"end":230},"obj":"http://purl.obolibrary.org/obo/CLO_0050980"},{"id":"T17","span":{"begin":638,"end":642},"obj":"http://purl.obolibrary.org/obo/CLO_0009141"},{"id":"T18","span":{"begin":638,"end":642},"obj":"http://purl.obolibrary.org/obo/CLO_0050980"},{"id":"T19","span":{"begin":669,"end":673},"obj":"http://purl.obolibrary.org/obo/CLO_0009141"},{"id":"T20","span":{"begin":669,"end":673},"obj":"http://purl.obolibrary.org/obo/CLO_0050980"},{"id":"T21","span":{"begin":682,"end":686},"obj":"http://purl.obolibrary.org/obo/CLO_0009141"},{"id":"T22","span":{"begin":682,"end":686},"obj":"http://purl.obolibrary.org/obo/CLO_0050980"},{"id":"T23","span":{"begin":689,"end":693},"obj":"http://purl.obolibrary.org/obo/CLO_0050160"},{"id":"T24","span":{"begin":728,"end":732},"obj":"http://purl.obolibrary.org/obo/CLO_0009141"},{"id":"T25","span":{"begin":728,"end":732},"obj":"http://purl.obolibrary.org/obo/CLO_0050980"}],"text":"Establishing a classical SIR model\nThe present study used the classic SIR model to build a mathematical model, where S represents susceptible individuals; I, infected individuals; and R, recovered individuals.\nSuppose i (t), s (t) and r (t) represent the numbers of infected, uninfected and recovered individuals, respectively, at time t. Meanwhile, the effective daily infection rate β is defined as λ×p, where λ is the number of infected and healthy individuals’ effective contacts with infected individuals per day, and p is the infection probability during each contact. The model equations were established to be i(t+Δt)−i(t)=i(t)×β×s(t)N×Δt−i(t)×μ×Δt(1) s(t+Δt)−s(t)=−i(t)×β×s(t)N×Δt(2) r(t+Δt)−r(t)=i(t)×μ×Δt(3) where s(t)N represents the proportion of healthy individuals involved in the effective contacts, since only they can transmit the disease."}

{"project":"LitCovid-sentences","denotations":[{"id":"T39","span":{"begin":0,"end":34},"obj":"Sentence"},{"id":"T40","span":{"begin":35,"end":209},"obj":"Sentence"},{"id":"T41","span":{"begin":210,"end":338},"obj":"Sentence"},{"id":"T42","span":{"begin":339,"end":574},"obj":"Sentence"},{"id":"T43","span":{"begin":575,"end":860},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Establishing a classical SIR model\nThe present study used the classic SIR model to build a mathematical model, where S represents susceptible individuals; I, infected individuals; and R, recovered individuals.\nSuppose i (t), s (t) and r (t) represent the numbers of infected, uninfected and recovered individuals, respectively, at time t. Meanwhile, the effective daily infection rate β is defined as λ×p, where λ is the number of infected and healthy individuals’ effective contacts with infected individuals per day, and p is the infection probability during each contact. The model equations were established to be i(t+Δt)−i(t)=i(t)×β×s(t)N×Δt−i(t)×μ×Δt(1) s(t+Δt)−s(t)=−i(t)×β×s(t)N×Δt(2) r(t+Δt)−r(t)=i(t)×μ×Δt(3) where s(t)N represents the proportion of healthy individuals involved in the effective contacts, since only they can transmit the disease."}

{"project":"LitCovid-PubTator","denotations":[{"id":"43","span":{"begin":158,"end":166},"obj":"Disease"},{"id":"49","span":{"begin":266,"end":274},"obj":"Disease"},{"id":"50","span":{"begin":370,"end":379},"obj":"Disease"},{"id":"51","span":{"begin":431,"end":439},"obj":"Disease"},{"id":"52","span":{"begin":489,"end":497},"obj":"Disease"},{"id":"53","span":{"begin":532,"end":541},"obj":"Disease"}],"attributes":[{"id":"A43","pred":"tao:has_database_id","subj":"43","obj":"MESH:D007239"},{"id":"A49","pred":"tao:has_database_id","subj":"49","obj":"MESH:D007239"},{"id":"A50","pred":"tao:has_database_id","subj":"50","obj":"MESH:D007239"},{"id":"A51","pred":"tao:has_database_id","subj":"51","obj":"MESH:D007239"},{"id":"A52","pred":"tao:has_database_id","subj":"52","obj":"MESH:D007239"},{"id":"A53","pred":"tao:has_database_id","subj":"53","obj":"MESH:D007239"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":"Establishing a classical SIR model\nThe present study used the classic SIR model to build a mathematical model, where S represents susceptible individuals; I, infected individuals; and R, recovered individuals.\nSuppose i (t), s (t) and r (t) represent the numbers of infected, uninfected and recovered individuals, respectively, at time t. Meanwhile, the effective daily infection rate β is defined as λ×p, where λ is the number of infected and healthy individuals’ effective contacts with infected individuals per day, and p is the infection probability during each contact. The model equations were established to be i(t+Δt)−i(t)=i(t)×β×s(t)N×Δt−i(t)×μ×Δt(1) s(t+Δt)−s(t)=−i(t)×β×s(t)N×Δt(2) r(t+Δt)−r(t)=i(t)×μ×Δt(3) where s(t)N represents the proportion of healthy individuals involved in the effective contacts, since only they can transmit the disease."}