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Xu XB, Tang T, Wang ZH, Xu XN, Fang GY, Gu M. Nonequilibrium pattern formation in circularly confined two-dimensional systems with competing interactions. Phys Rev E 2021; 103:012604. [PMID: 33601588 DOI: 10.1103/physreve.103.012604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/19/2020] [Indexed: 11/07/2022]
Abstract
We numerically investigate the nonequilibrium behaviors of classic particles with competing interactions confined in a two-dimensional logarithmic trap. We reveal a quench-induced surprising dynamics exhibiting rich dynamic patterns depending upon confinement strength and trap size, which is attributed to the time-dependent competition between interparticle repulsions and attractions under a circular confinement. Moreover, in the collectively diffusive motions of the particles, we find that the emergence of dynamic structure transformation coincides with a diffusive mode transition from superdiffusion to subdiffusion. These findings are likely useful in understanding the pattern selection and evolution in various chemical and biological systems in addition to modulated systems, and add a new route to tailoring the morphology of pattern-forming systems.
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Affiliation(s)
- X B Xu
- Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - T Tang
- Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - Z H Wang
- Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - X N Xu
- Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - G Y Fang
- Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - M Gu
- Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, People's Republic of China
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Lonabaugh KP, Lunsford KJ, Fang GY, Kaufman DA, Addison SD, Buck ML. Vancomycin Dosing in Pediatric Extracorporeal Membrane Oxygenation: Potential Impacts of New Technologies. J Pediatr Pharmacol Ther 2017; 22:358-363. [PMID: 29042837 DOI: 10.5863/1551-6776-22.5.358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVES The objective of the current study was to evaluate the doses of vancomycin used to obtain therapeutic drug concentrations in pediatric patients on extracorporeal membrane oxygenation (ECMO), using new ECMO technologies. METHODS This was a single-center, retrospective study of patients treated with vancomycin while receiving ECMO using low-volume circuit technology. RESULTS A total of 28 patients were included in the analysis of the primary endpoint. Patients had a median age of 6 weeks (0-11 years) and a median weight of 3.45 kg (2.44-37.2 kg). Ultrafiltration was used in 89.3% of patients at initiation of ECMO regardless of baseline renal function, resulting in a median urine output of 2 mL/kg/hr at the time of the final vancomycin dose. Most patients started vancomycin at the same time as ECMO. The median total daily dose was 30 mg/kg/day. The median total daily dose in a subset of patients less than one year of age was 20 mg/kg/day. Nearly all patients had at least 1 therapeutic trough serum vancomycin concentration. A total of 16 patients completed their vancomycin course using an interval of every 12 hours or shorter. Half-life was calculated in a subset of 11 patients and the mean was found to be 12.3 ± 2.8 hours. CONCLUSIONS An initial dosing interval of every 12 hours to provide a total daily dose of 30 mg/kg/day is a possible option in pediatric patients on ECMO provided that renal function is normal at baseline. Monitoring of serum vancomycin concentrations for adjustment of dosing is required throughout therapy and is still warranted.
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Affiliation(s)
- Kevin P Lonabaugh
- Department of Pharmacy Services (KPL, KJL, MLB), Department of Pediatrics (GYF, DAK), and Extracorporeal Life Support Services (SDA), University of Virginia Health System, Charlottesville, Virginia
| | - Kelly J Lunsford
- Department of Pharmacy Services (KPL, KJL, MLB), Department of Pediatrics (GYF, DAK), and Extracorporeal Life Support Services (SDA), University of Virginia Health System, Charlottesville, Virginia
| | - Gary Y Fang
- Department of Pharmacy Services (KPL, KJL, MLB), Department of Pediatrics (GYF, DAK), and Extracorporeal Life Support Services (SDA), University of Virginia Health System, Charlottesville, Virginia
| | - David A Kaufman
- Department of Pharmacy Services (KPL, KJL, MLB), Department of Pediatrics (GYF, DAK), and Extracorporeal Life Support Services (SDA), University of Virginia Health System, Charlottesville, Virginia
| | - Samuel D Addison
- Department of Pharmacy Services (KPL, KJL, MLB), Department of Pediatrics (GYF, DAK), and Extracorporeal Life Support Services (SDA), University of Virginia Health System, Charlottesville, Virginia
| | - Marcia L Buck
- Department of Pharmacy Services (KPL, KJL, MLB), Department of Pediatrics (GYF, DAK), and Extracorporeal Life Support Services (SDA), University of Virginia Health System, Charlottesville, Virginia
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Addison SD, Buck ML, Fang GY, Gangemi JJ, Kaufman DA. Decreased blood product usage during extracorporeal life support with reduced circuit volumes. Transfusion 2017; 57:1391-1395. [DOI: 10.1111/trf.14076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 11/04/2016] [Accepted: 01/24/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Samuel D. Addison
- Department of Pediatrics; University of Virginia Children's Hospital; Charlottesville Virginia
| | - Marcia L. Buck
- Department of Pediatrics; University of Virginia Children's Hospital; Charlottesville Virginia
- Department of Pharmacy Services; University of Virginia Children's Hospital; Charlottesville Virginia
| | - Gary Y. Fang
- Department of Pediatrics; University of Virginia Children's Hospital; Charlottesville Virginia
| | - James J. Gangemi
- Department of Surgery; University of Virginia Children's Hospital; Charlottesville Virginia
| | - David A. Kaufman
- Department of Pediatrics; University of Virginia Children's Hospital; Charlottesville Virginia
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Adams MR, Aïd S, Anthony PL, Averill DA, Baker MD, Baller BR, Banerjee A, Bhatti AA, Bratzler U, Braun HM, Carroll TJ, Clark HL, Conrad JM, Davisson R, Derado I, Dietrich FS, Dougherty W, Dreyer T, Eckardt V, Ecker U, Erdmann M, Fang GY, Figiel J, Finlay RW, Gebauer HJ, Geesaman DF, Griffioen KA, Guo RS, Haas J, Halliwell C, Hantke D, Hicks KH, Jackson HE, Jaffe DE, Jancso G, Jansen DM, Jin Z, Kaufman S, Kennedy RD, Kinney ER, Kobrak HG, Kotwal AV, Kunori S, Lord JJ, Lubatti HJ, McLeod D, Madden P, Magill S, Manz A, Melanson H, Michael DG, Montgomery HE, Morfin JG, Nickerson RB, Novak J, O'Day S, Olkiewicz K, Osborne L, Otten R, Papavassiliou V, Pawlik B, Pipkin FM, Potterveld DH, Ramberg EJ. Proton and deuteron structure functions in muon scattering at 470 GeV. Phys Rev D Part Fields 1996; 54:3006-3056. [PMID: 10020979 DOI: 10.1103/physrevd.54.3006] [Citation(s) in RCA: 152] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Adams MR, Aïd S, Anthony PL, Averill DA, Baker MD, Baller BR, Banerjee A, Bhatti AA, Bratzler U, Braun HM, Carroll TJ, Clark HL, Conrad JM, Davisson R, Derado I, Dhawan SK, Dietrich FS, Dougherty W, Dreyer T, Eckardt V, Ecker U, Erdmann M, Fang GY, Figiel J, Finlay RW, Gebauer HJ, Geesaman DF, Griffioen KA, Guo RS, Haas J, Halliwell C, Hantke D, Hicks KH, Hughes VW, Jackson HE, Jaffe DE, Jancso G, Jansen DM, Jin Z, Kaufman S, Kennedy RD, Kinney ER, Kobrak HG, Kotwal AV, Kunori S, Lord JJ, Lubatti HJ, McLeod D, Madden P, Magill S, Manz A, Melanson H, Michael DG, Montgomery HE, Morfin JG, Nickerson RB, Novak J, O'Day S, Olkiewicz K, Osborne L, Otten R, Papavassiliou V, Pawlik B, Pipkin FM. Extraction of the Ratio Fn2/Fp2 from Muon-Deuteron and Muon-Proton Scattering at Small x and Q2. Phys Rev Lett 1995; 75:1466-1470. [PMID: 10060305 DOI: 10.1103/physrevlett.75.1466] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Adams MR, Aïd S, Anthony PL, Averill DA, Baker MD, Baller BR, Banerjee A, Bhatti AA, Bratzler U, Braun HM, Breidung H, Busza W, Carroll TJ, Clark HL, Conrad JM, Davisson R, Derado I, Dhawan SK, Dietrich FS, Dougherty W, Dreyer T, Eckardt V, Ecker U, Erdmann M, Fang GY, Figiel J, Finlay RW, Gebauer HJ, Geesaman DF, Griffioen KA, Guo RS, Haas J, Halliwell C, Hantke D, Hicks KH, Hughes VW, Jackson HE, Jaffe DE, Jancso G, Jansen DM, Jin Z, Kaufman S, Kennedy RD, Kinney ER, Kirk T, Kobrak HG, Kotwal AV, Kunori S, Lord JJ, Lubatti HJ, McLeod D, Madden P, Magill S, Manz A, Melanson H, Michael DG, Montgomery HE, Morfin JG, Nickerson RB, O'Day S, Olkiewicz K, Osborne L, Otten R, Papavassiliou V. Nuclear decay following deep inelastic scattering of 470 GeV muons. Phys Rev Lett 1995; 74:5198-5201. [PMID: 10058707 DOI: 10.1103/physrevlett.74.5198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Adams MR, Aïd S, Anthony PL, Averill DA, Baker MD, Baller BR, Banerjee A, Bhatti AA, Bratzler U, Braun HM, Breidung H, Busza W, Carroll TJ, Clark HL, Conrad JM, Davisson R, Derado I, Dhawan SK, Dietrich FS, Dougherty W, Dreyer T, Eckardt V, Ecker U, Erdmann M, Faller F, Fang GY, Figiel J, Finlay RW, Gebauer HJ, Geesaman DF, Griffioen KA, Guo RS, Haas J, Halliwell C, Hantke D, Hicks KH, Hughes VW, Jackson HE, Jancso G, Jansen DM, Jin Z, Kaufman S, Kennedy RD, Kinney ER, Kirk T, Kobrak HG, Kotwal AV, Kunori S, Lancaster S, Lord JJ, Lubatti HJ, McLeod D, Madden P, Magill S, Manz A, Melanson H, Michael DG, Montgomery HE, Morfin JG, Nickerson RB, O'Day S, Olkiewicz K, Osborne L, Otten R. Measurement of nuclear transparencies from exclusive rho 0 meson production in muon-nucleus scattering at 470 GeV. Phys Rev Lett 1995; 74:1525-1529. [PMID: 10059051 DOI: 10.1103/physrevlett.74.1525] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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