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72 results

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Page 1
Sign-sensitivities for reaction networks: an algebraic approach.
Feliu E. Feliu E. Math Biosci Eng. 2019 Sep 11;16(6):8195-8213. doi: 10.3934/mbe.2019414. Math Biosci Eng. 2019. PMID: 31698663 Free article.
This paper presents an algebraic framework to study sign-sensitivities for reaction networks modeled by means of systems of ordinary differential equations. Specifically, we study the sign of the derivative of the concentrations of the species in the network …
This paper presents an algebraic framework to study sign-sensitivities for reaction networks modeled by means of systems of or …
A lifetime of pulmonary gas exchange.
West JB. West JB. Physiol Rep. 2018 Oct;6(20):e13903. doi: 10.14814/phy2.13903. Physiol Rep. 2018. PMID: 30350350 Free PMC article. Review.
When I was a medical student, the only way we had to recognize defective gas exchange was whether the patient was cyanosed. The advent of the oximeter soon showed that this sign could be very misleading. A breakthrough was the introduction of blood gas electrodes that coul …
When I was a medical student, the only way we had to recognize defective gas exchange was whether the patient was cyanosed. The advent of th …
Is a substitute the same? Learning from lessons centering different relational conceptions of the equal sign.
Donovan AM, Stephens A, Alapala B, Monday A, Szkudlarek E, Alibali MW, Matthews PG. Donovan AM, et al. ZDM. 2022;54(6):1199-1213. doi: 10.1007/s11858-022-01405-y. Epub 2022 Jul 28. ZDM. 2022. PMID: 35915849 Free PMC article.
Understanding of the equal sign is associated with early algebraic competence in the elementary grades and equation-solving success in middle school. ...We discuss possible interpretations, and we argue that further research is needed to explore the roles of samenes …
Understanding of the equal sign is associated with early algebraic competence in the elementary grades and equation-solving su …
Digital Signatures with Quantum Candies.
Mor T, Shapira R, Shemesh G. Mor T, et al. Entropy (Basel). 2022 Jan 28;24(2):207. doi: 10.3390/e24020207. Entropy (Basel). 2022. PMID: 35205505 Free PMC article.
Quantum candies (qandies) represent a type of pedagogical simple model that describes many concepts from quantum information processing (QIP) intuitively without the need to understand or make use of superpositions and without the need of using complex algebra. One of the …
Quantum candies (qandies) represent a type of pedagogical simple model that describes many concepts from quantum information processing (QIP …
Keys to the Gate? Equal Sign Knowledge at Second Grade Predicts Fourth-Grade Algebra Competence.
Matthews PG, Fuchs LS. Matthews PG, et al. Child Dev. 2020 Jan;91(1):e14-e28. doi: 10.1111/cdev.13144. Epub 2018 Sep 17. Child Dev. 2020. PMID: 30295921 Free PMC article.
Algebraic competence is a major determinant of college access and career prospects, and equal sign knowledge is taken to be foundational to algebra knowledge. However, few studies have documented a causal effect of early equal sign knowledge on later …
Algebraic competence is a major determinant of college access and career prospects, and equal sign knowledge is taken to be fo …
Photonic topological phases in Tellegen metamaterials.
Chern RL, Chou YJ. Chern RL, et al. Opt Express. 2022 Dec 19;30(26):47004-47016. doi: 10.1364/OE.476682. Opt Express. 2022. PMID: 36558638 Free article.
Surface modes at the interface between two Tellegen metamaterials with opposite sign of the magnetoelectric parameter exist at their common gap in the wave vector space, which are analytically formulated by algebraic equations. ...
Surface modes at the interface between two Tellegen metamaterials with opposite sign of the magnetoelectric parameter exist at their …
Photonic topological semimetals in bigyrotropic metamaterials.
Chern RL, Yu YZ. Chern RL, et al. Opt Express. 2022 Jul 4;30(14):25162-25176. doi: 10.1364/OE.459097. Opt Express. 2022. PMID: 36237053 Free article.
Surface modes at the interface between two bigyrotropic metamaterials with opposite sign of the gyrotropic parameters exist in their common gap in the wave vector space, which are analytically formulated by algebraic equations. ...
Surface modes at the interface between two bigyrotropic metamaterials with opposite sign of the gyrotropic parameters exist in their …
Phonological reduplication in sign language: Rules rule.
Berent I, Dupuis A, Brentari D. Berent I, et al. Front Psychol. 2014 Jun 10;5:560. doi: 10.3389/fpsyg.2014.00560. eCollection 2014. Front Psychol. 2014. PMID: 24959158 Free PMC article.
But whether algebraic rules form part of the linguistic competence of signers remains unknown. To address this question, here we gauge the generalization afforded by American Sign Language (ASL). As a case study, we examine reduplication (XXX)-a rule that, inter ali …
But whether algebraic rules form part of the linguistic competence of signers remains unknown. To address this question, here we gaug …
Sign function and ANN based pole placement for computing interval controls.
Chakraverty S, Mahato NR, Jeswal SK. Chakraverty S, et al. ISA Trans. 2022 Jan;119:17-24. doi: 10.1016/j.isatra.2021.02.041. Epub 2021 Mar 6. ISA Trans. 2022. PMID: 33752885
As such, the LTI problem reduces to interval LTI. The pole placement problem is then reduced to interval algebraic equation viz. interval Diophantine equation using proper transfer function. Further, the interval Diophantine equation is transformed to Interval System of Li …
As such, the LTI problem reduces to interval LTI. The pole placement problem is then reduced to interval algebraic equation viz. inte …
Multistationarity in Structured Reaction Networks.
Dickenstein A, Millán MP, Shiu A, Tang X. Dickenstein A, et al. Bull Math Biol. 2019 May;81(5):1527-1581. doi: 10.1007/s11538-019-00572-6. Epub 2019 Feb 20. Bull Math Biol. 2019. PMID: 30788691
Although deciding multistationarity for a polynomial dynamical system is an effective question in real algebraic geometry, it is in general difficult to determine whether a given network can give rise to a multistationary system, and if so, to identify witnesses to multist …
Although deciding multistationarity for a polynomial dynamical system is an effective question in real algebraic geometry, it is in g …
72 results