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Two independent and primitive envelopes of the bilobate nucleus of comet 67P.

Nature

Massironi M, Simioni E, Marzari F, Cremonese G, Giacomini L, Pajola M, Jorda L, Naletto G, Lowry S, El-Maarry MR, Preusker F, Scholten F, Sierks H, Barbieri C, Lamy P, Rodrigo R, Koschny D, Rickman H, Keller HU, A'Hearn MF, Agarwal J, Auger AT, Barucci MA, Bertaux JL, Bertini I, Besse S, Bodewits D, Capanna C, Da Deppo V, Davidsson B, Debei S, De Cecco M, Ferri F, Fornasier S, Fulle M, Gaskell R, Groussin O, Gutiérrez PJ, Güttler C, Hviid SF, Ip WH, Knollenberg J, Kovacs G, Kramm R, Kührt E, Küppers M, La Forgia F, Lara LM, Lazzarin M, Lin ZY, Lopez Moreno JJ, Magrin S, Michalik H, Mottola S, Oklay N, Pommerol A, Thomas N, Tubiana C, Vincent JB.
PMID: 26416730
Nature. 2015 Oct 15;526(7573):402-5. doi: 10.1038/nature15511. Epub 2015 Sep 28.

The factors shaping cometary nuclei are still largely unknown, but could be the result of concurrent effects of evolutionary and primordial processes. The peculiar bilobed shape of comet 67P/Churyumov-Gerasimenko may be the result of the fusion of two objects...

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Massironi M, Simioni E, Marzari F, et al. Two independent and primitive envelopes of the bilobate nucleus of comet 67P. Nature. 2015;526(7573):402-5doi: 10.1038/nature15511.
Massironi, M., Simioni, E., Marzari, F., Cremonese, G., Giacomini, L., Pajola, M., Jorda, L., Naletto, G., Lowry, S., El-Maarry, M. R., Preusker, F., Scholten, F., Sierks, H., Barbieri, C., Lamy, P., Rodrigo, R., Koschny, D., Rickman, H., Keller, H. U., A'Hearn, M. F., Agarwal, J., Auger, A. T., Barucci, M. A., Bertaux, J. L., Bertini, I., Besse, S., Bodewits, D., Capanna, C., Da Deppo, V., Davidsson, B., Debei, S., De Cecco, M., Ferri, F., Fornasier, S., Fulle, M., Gaskell, R., Groussin, O., Gutiérrez, P. J., Güttler, C., Hviid, S. F., Ip, W. H., Knollenberg, J., Kovacs, G., Kramm, R., Kührt, E., Küppers, M., La Forgia, F., Lara, L. M., Lazzarin, M., Lin, Z. Y., Lopez Moreno, J. J., Magrin, S., Michalik, H., Mottola, S., Oklay, N., Pommerol, A., Thomas, N., Tubiana, C., & Vincent, J. B. (2015). Two independent and primitive envelopes of the bilobate nucleus of comet 67P. Nature, 526(7573), 402-5. https://doi.org/10.1038/nature15511
Massironi, Matteo, et al. "Two independent and primitive envelopes of the bilobate nucleus of comet 67P." Nature vol. 526,7573 (2015): 402-5. doi: https://doi.org/10.1038/nature15511
Massironi M, Simioni E, Marzari F, Cremonese G, Giacomini L, Pajola M, Jorda L, Naletto G, Lowry S, El-Maarry MR, Preusker F, Scholten F, Sierks H, Barbieri C, Lamy P, Rodrigo R, Koschny D, Rickman H, Keller HU, A'Hearn MF, Agarwal J, Auger AT, Barucci MA, Bertaux JL, Bertini I, Besse S, Bodewits D, Capanna C, Da Deppo V, Davidsson B, Debei S, De Cecco M, Ferri F, Fornasier S, Fulle M, Gaskell R, Groussin O, Gutiérrez PJ, Güttler C, Hviid SF, Ip WH, Knollenberg J, Kovacs G, Kramm R, Kührt E, Küppers M, La Forgia F, Lara LM, Lazzarin M, Lin ZY, Lopez Moreno JJ, Magrin S, Michalik H, Mottola S, Oklay N, Pommerol A, Thomas N, Tubiana C, Vincent JB. Two independent and primitive envelopes of the bilobate nucleus of comet 67P. Nature. 2015 Oct 15;526(7573):402-5. doi: 10.1038/nature15511. Epub 2015 Sep 28. PMID: 26416730.
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Surface changes on comet 67P/Churyumov-Gerasimenko suggest a more active past.

Science (New York, N.Y.)

El-Maarry MR, Groussin O, Thomas N, Pajola M, Auger AT, Davidsson B, Hu X, Hviid SF, Knollenberg J, Güttler C, Tubiana C, Fornasier S, Feller C, Hasselmann P, Vincent JB, Sierks H, Barbieri C, Lamy P, Rodrigo R, Koschny D, Keller HU, Rickman H, A'Hearn MF, Barucci MA, Bertaux JL, Bertini I, Besse S, Bodewits D, Cremonese G, Da Deppo V, Debei S, De Cecco M, Deller J, Deshapriya JD, Fulle M, Gutierrez PJ, Hofmann M, Ip WH, Jorda L, Kovacs G, Kramm JR, Kührt E, Küppers M, Lara LM, Lazzarin M, Lin ZY, Lopez Moreno JJ, Marchi S, Marzari F, Mottola S, Naletto G, Oklay N, Pommerol A, Preusker F, Scholten F, Shi X.
PMID: 28325842
Science. 2017 Mar 31;355(6332):1392-1395. doi: 10.1126/science.aak9384. Epub 2017 Mar 21.

The Rosetta spacecraft spent ~2 years orbiting comet 67P/Churyumov-Gerasimenko, most of it at distances that allowed surface characterization and monitoring at submeter scales. From December 2014 to June 2016, numerous localized changes were observed, which we attribute to cometary-specific...

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El-Maarry MR, Groussin O, Thomas N, et al. Surface changes on comet 67P/Churyumov-Gerasimenko suggest a more active past. Science. 2017;355(6332):1392-1395doi: 10.1126/science.aak9384.
El-Maarry, M. R., Groussin, O., Thomas, N., Pajola, M., Auger, A. T., Davidsson, B., Hu, X., Hviid, S. F., Knollenberg, J., Güttler, C., Tubiana, C., Fornasier, S., Feller, C., Hasselmann, P., Vincent, J. B., Sierks, H., Barbieri, C., Lamy, P., Rodrigo, R., Koschny, D., Keller, H. U., Rickman, H., A'Hearn, M. F., Barucci, M. A., Bertaux, J. L., Bertini, I., Besse, S., Bodewits, D., Cremonese, G., Da Deppo, V., Debei, S., De Cecco, M., Deller, J., Deshapriya, J. D., Fulle, M., Gutierrez, P. J., Hofmann, M., Ip, W. H., Jorda, L., Kovacs, G., Kramm, J. R., Kührt, E., Küppers, M., Lara, L. M., Lazzarin, M., Lin, Z. Y., Lopez Moreno, J. J., Marchi, S., Marzari, F., Mottola, S., Naletto, G., Oklay, N., Pommerol, A., Preusker, F., Scholten, F., & Shi, X. (2017). Surface changes on comet 67P/Churyumov-Gerasimenko suggest a more active past. Science (New York, N.Y.), 355(6332), 1392-1395. https://doi.org/10.1126/science.aak9384
El-Maarry, M Ramy, et al. "Surface changes on comet 67P/Churyumov-Gerasimenko suggest a more active past." Science (New York, N.Y.) vol. 355,6332 (2017): 1392-1395. doi: https://doi.org/10.1126/science.aak9384
El-Maarry MR, Groussin O, Thomas N, Pajola M, Auger AT, Davidsson B, Hu X, Hviid SF, Knollenberg J, Güttler C, Tubiana C, Fornasier S, Feller C, Hasselmann P, Vincent JB, Sierks H, Barbieri C, Lamy P, Rodrigo R, Koschny D, Keller HU, Rickman H, A'Hearn MF, Barucci MA, Bertaux JL, Bertini I, Besse S, Bodewits D, Cremonese G, Da Deppo V, Debei S, De Cecco M, Deller J, Deshapriya JD, Fulle M, Gutierrez PJ, Hofmann M, Ip WH, Jorda L, Kovacs G, Kramm JR, Kührt E, Küppers M, Lara LM, Lazzarin M, Lin ZY, Lopez Moreno JJ, Marchi S, Marzari F, Mottola S, Naletto G, Oklay N, Pommerol A, Preusker F, Scholten F, Shi X. Surface changes on comet 67P/Churyumov-Gerasimenko suggest a more active past. Science. 2017 Mar 31;355(6332):1392-1395. doi: 10.1126/science.aak9384. Epub 2017 Mar 21. PMID: 28325842.
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Numerical investigation of the flat band Bloch modes in a 2D photonic crystal with Dirac cones.

Optics express

Zhang P, Fietz C, Tassin P, Koschny T, Soukoulis CM.
PMID: 25969086
Opt Express. 2015 Apr 20;23(8):10444-52. doi: 10.1364/OE.23.010444.

A numerical method combining complex-k band calculations and absorbing boundary conditions for Bloch waves is presented. We use this method to study photonic crystals with Dirac cones. We demonstrate that the photonic crystal behaves as a zero-index medium when...

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Zhang P, Fietz C, Tassin P, et al. Numerical investigation of the flat band Bloch modes in a 2D photonic crystal with Dirac cones. Opt Express. 2015;23(8):10444-52doi: 10.1364/OE.23.010444.
Zhang, P., Fietz, C., Tassin, P., Koschny, T., & Soukoulis, C. M. (2015). Numerical investigation of the flat band Bloch modes in a 2D photonic crystal with Dirac cones. Optics express, 23(8), 10444-52. https://doi.org/10.1364/OE.23.010444
Zhang, Peng, et al. "Numerical investigation of the flat band Bloch modes in a 2D photonic crystal with Dirac cones." Optics express vol. 23,8 (2015): 10444-52. doi: https://doi.org/10.1364/OE.23.010444
Zhang P, Fietz C, Tassin P, Koschny T, Soukoulis CM. Numerical investigation of the flat band Bloch modes in a 2D photonic crystal with Dirac cones. Opt Express. 2015 Apr 20;23(8):10444-52. doi: 10.1364/OE.23.010444. PMID: 25969086.
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Graded-index optical dimer formed by optical force.

Optics express

Akbarzadeh A, Koschny T, Kafesaki M, Economou EN, Soukoulis CM.
PMID: 27410066
Opt Express. 2016 May 30;24(11):11376-86. doi: 10.1364/OE.24.011376.

We propose an optical dimer formed from two spherical lenses bound by the pressure that light exerts on matter. With the help of the method of force tracing, we find the required graded-index profiles of the lenses for the...

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Akbarzadeh A, Koschny T, Kafesaki M, et al. Graded-index optical dimer formed by optical force. Opt Express. 2016;24(11):11376-86doi: 10.1364/OE.24.011376.
Akbarzadeh, A., Koschny, T., Kafesaki, M., Economou, E. N., & Soukoulis, C. M. (2016). Graded-index optical dimer formed by optical force. Optics express, 24(11), 11376-86. https://doi.org/10.1364/OE.24.011376
Akbarzadeh, Alireza, et al. "Graded-index optical dimer formed by optical force." Optics express vol. 24,11 (2016): 11376-86. doi: https://doi.org/10.1364/OE.24.011376
Akbarzadeh A, Koschny T, Kafesaki M, Economou EN, Soukoulis CM. Graded-index optical dimer formed by optical force. Opt Express. 2016 May 30;24(11):11376-86. doi: 10.1364/OE.24.011376. PMID: 27410066.
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Levitation of current carrying states in the lattice model for the integer quantum Hall effect.

Physical review letters

Koschny T, Potempa H, Schweitzer L.
PMID: 11329343
Phys Rev Lett. 2001 Apr 23;86(17):3863-6. doi: 10.1103/PhysRevLett.86.3863.

The disorder driven quantum Hall to insulator transition is investigated for a two-dimensional lattice model. The Hall conductivity and the localization length are calculated numerically near the transition. For uncorrelated and weakly correlated disorder potentials the current carrying states...

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Koschny T, Potempa H, Schweitzer L. Levitation of current carrying states in the lattice model for the integer quantum Hall effect. Phys Rev Lett. 2001;86(17):3863-6doi: 10.1103/PhysRevLett.86.3863.
Koschny, T., Potempa, H., & Schweitzer, L. (2001). Levitation of current carrying states in the lattice model for the integer quantum Hall effect. Physical review letters, 86(17), 3863-6. https://doi.org/10.1103/PhysRevLett.86.3863
Koschny, T, et al. "Levitation of current carrying states in the lattice model for the integer quantum Hall effect." Physical review letters vol. 86,17 (2001): 3863-6. doi: https://doi.org/10.1103/PhysRevLett.86.3863
Koschny T, Potempa H, Schweitzer L. Levitation of current carrying states in the lattice model for the integer quantum Hall effect. Phys Rev Lett. 2001 Apr 23;86(17):3863-6. doi: 10.1103/PhysRevLett.86.3863. PMID: 11329343.
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Multi-gap individual and coupled split-ring resonator structures.

Optics express

Penciu RS, Aydin K, Kafesaki M, Koschny T, Ozbay E, Economou EN, Soukoulis CM.
PMID: 18958091
Opt Express. 2008 Oct 27;16(22):18131-44. doi: 10.1364/oe.16.018131.

We present a systematic numerical study, validated by accompanied experimental data, of individual and coupled split ring resonators (SRRs) of a single rectangular ring with one, two and four gaps. We discuss the behavior of the magnetic resonance frequency,...

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Penciu RS, Aydin K, Kafesaki M, et al. Multi-gap individual and coupled split-ring resonator structures. Opt Express. 2008;16(22):18131-44doi: 10.1364/oe.16.018131.
Penciu, R. S., Aydin, K., Kafesaki, M., Koschny, T., Ozbay, E., Economou, E. N., & Soukoulis, C. M. (2008). Multi-gap individual and coupled split-ring resonator structures. Optics express, 16(22), 18131-44. https://doi.org/10.1364/oe.16.018131
Penciu, R S, et al. "Multi-gap individual and coupled split-ring resonator structures." Optics express vol. 16,22 (2008): 18131-44. doi: https://doi.org/10.1364/oe.16.018131
Penciu RS, Aydin K, Kafesaki M, Koschny T, Ozbay E, Economou EN, Soukoulis CM. Multi-gap individual and coupled split-ring resonator structures. Opt Express. 2008 Oct 27;16(22):18131-44. doi: 10.1364/oe.16.018131. PMID: 18958091.
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Magnetic response of metamaterials at 100 terahertz.

Science (New York, N.Y.)

Linden S, Enkrich C, Wegener M, Zhou J, Koschny T, Soukoulis CM.
PMID: 15550664
Science. 2004 Nov 19;306(5700):1351-3. doi: 10.1126/science.1105371.

An array of single nonmagnetic metallic split rings can be used to implement a magnetic resonance, which arises from an inductor-capacitor circuit (LC) resonance, at 100-terahertz frequency. The excitation of the LC resonance in the normal-incidence geometry used in...

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Linden S, Enkrich C, Wegener M, et al. Magnetic response of metamaterials at 100 terahertz. Science. 2004;306(5700):1351-3doi: 10.1126/science.1105371.
Linden, S., Enkrich, C., Wegener, M., Zhou, J., Koschny, T., & Soukoulis, C. M. (2004). Magnetic response of metamaterials at 100 terahertz. Science (New York, N.Y.), 306(5700), 1351-3. https://doi.org/10.1126/science.1105371
Linden, Stefan, et al. "Magnetic response of metamaterials at 100 terahertz." Science (New York, N.Y.) vol. 306,5700 (2004): 1351-3. doi: https://doi.org/10.1126/science.1105371
Linden S, Enkrich C, Wegener M, Zhou J, Koschny T, Soukoulis CM. Magnetic response of metamaterials at 100 terahertz. Science. 2004 Nov 19;306(5700):1351-3. doi: 10.1126/science.1105371. PMID: 15550664.
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Electromagnetic parameter retrieval from inhomogeneous metamaterials.

Physical review. E, Statistical, nonlinear, and soft matter physics

Smith DR, Vier DC, Koschny T, Soukoulis CM.
PMID: 15903615
Phys Rev E Stat Nonlin Soft Matter Phys. 2005 Mar;71(3):036617. doi: 10.1103/PhysRevE.71.036617. Epub 2005 Mar 22.

We discuss the validity of standard retrieval methods that assign bulk electromagnetic properties, such as the electric permittivity epsilon and the magnetic permeability mu, from calculations of the scattering (S) parameters for finite-thickness samples. S-parameter retrieval methods have recently...

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Smith DR, Vier DC, Koschny T, et al. Electromagnetic parameter retrieval from inhomogeneous metamaterials. Phys Rev E Stat Nonlin Soft Matter Phys. 2005;71(3):036617doi: 10.1103/PhysRevE.71.036617.
Smith, D. R., Vier, D. C., Koschny, T., & Soukoulis, C. M. (2005). Electromagnetic parameter retrieval from inhomogeneous metamaterials. Physical review. E, Statistical, nonlinear, and soft matter physics, 71(3), 036617. https://doi.org/10.1103/PhysRevE.71.036617
Smith, D R, et al. "Electromagnetic parameter retrieval from inhomogeneous metamaterials." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 71,3 (2005): 036617. doi: https://doi.org/10.1103/PhysRevE.71.036617
Smith DR, Vier DC, Koschny T, Soukoulis CM. Electromagnetic parameter retrieval from inhomogeneous metamaterials. Phys Rev E Stat Nonlin Soft Matter Phys. 2005 Mar;71(3):036617. doi: 10.1103/PhysRevE.71.036617. Epub 2005 Mar 22. PMID: 15903615.
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Resonant and antiresonant frequency dependence of the effective parameters of metamaterials.

Physical review. E, Statistical, nonlinear, and soft matter physics

Koschny T, Markos P, Smith DR, Soukoulis CM.
PMID: 14754259
Phys Rev E Stat Nonlin Soft Matter Phys. 2003 Dec;68(6):065602. doi: 10.1103/PhysRevE.68.065602. Epub 2003 Dec 15.

We present a numerical study of the electromagnetic response of the metamaterial elements that are used to construct materials with negative refractive index. For an array of split ring resonators (SRR) we find that the resonant behavior of the...

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Koschny T, Markos P, Smith DR, et al. Resonant and antiresonant frequency dependence of the effective parameters of metamaterials. Phys Rev E Stat Nonlin Soft Matter Phys. 2003;68(6):065602doi: 10.1103/PhysRevE.68.065602.
Koschny, T., Markos, P., Smith, D. R., & Soukoulis, C. M. (2003). Resonant and antiresonant frequency dependence of the effective parameters of metamaterials. Physical review. E, Statistical, nonlinear, and soft matter physics, 68(6), 065602. https://doi.org/10.1103/PhysRevE.68.065602
Koschny, T, et al. "Resonant and antiresonant frequency dependence of the effective parameters of metamaterials." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 68,6 (2003): 065602. doi: https://doi.org/10.1103/PhysRevE.68.065602
Koschny T, Markos P, Smith DR, Soukoulis CM. Resonant and antiresonant frequency dependence of the effective parameters of metamaterials. Phys Rev E Stat Nonlin Soft Matter Phys. 2003 Dec;68(6):065602. doi: 10.1103/PhysRevE.68.065602. Epub 2003 Dec 15. PMID: 14754259.
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Intra-connected three-dimensionally isotropic bulk negative index photonic metamaterial.

Optics express

Güney DO, Koschny T, Soukoulis CM.
PMID: 20588360
Opt Express. 2010 Jun 07;18(12):12348-53. doi: 10.1364/OE.18.012348.

Isotropic negative index metamaterials (NIMs) are highly desired, particularly for the realization of ultra-high resolution lenses. However, existing isotropic NIMs function only two-dimensionally and cannot be miniaturized beyond microwaves. Direct laser writing processes can be a paradigm shift toward...

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Güney DO, Koschny T, Soukoulis CM. Intra-connected three-dimensionally isotropic bulk negative index photonic metamaterial. Opt Express. 2010;18(12):12348-53doi: 10.1364/OE.18.012348.
Güney, D. O., Koschny, T., & Soukoulis, C. M. (2010). Intra-connected three-dimensionally isotropic bulk negative index photonic metamaterial. Optics express, 18(12), 12348-53. https://doi.org/10.1364/OE.18.012348
Güney, Durdu O, et al. "Intra-connected three-dimensionally isotropic bulk negative index photonic metamaterial." Optics express vol. 18,12 (2010): 12348-53. doi: https://doi.org/10.1364/OE.18.012348
Güney DO, Koschny T, Soukoulis CM. Intra-connected three-dimensionally isotropic bulk negative index photonic metamaterial. Opt Express. 2010 Jun 07;18(12):12348-53. doi: 10.1364/OE.18.012348. PMID: 20588360.
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Repulsive Casimir force in chiral metamaterials.

Physical review letters

Zhao R, Zhou J, Koschny T, Economou EN, Soukoulis CM.
PMID: 19792309
Phys Rev Lett. 2009 Sep 04;103(10):103602. doi: 10.1103/PhysRevLett.103.103602. Epub 2009 Sep 04.

We demonstrate theoretically that one can obtain repulsive Casimir forces and stable nanolevitations by using chiral metamaterials. By extending the Lifshitz theory to treat chiral metamaterials, we find that a repulsive force and a minimum of the interaction energy...

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Zhao R, Zhou J, Koschny T, et al. Repulsive Casimir force in chiral metamaterials. Phys Rev Lett. 2009;103(10):103602doi: 10.1103/PhysRevLett.103.103602.
Zhao, R., Zhou, J., Koschny, T., Economou, E. N., & Soukoulis, C. M. (2009). Repulsive Casimir force in chiral metamaterials. Physical review letters, 103(10), 103602. https://doi.org/10.1103/PhysRevLett.103.103602
Zhao, R, et al. "Repulsive Casimir force in chiral metamaterials." Physical review letters vol. 103,10 (2009): 103602. doi: https://doi.org/10.1103/PhysRevLett.103.103602
Zhao R, Zhou J, Koschny T, Economou EN, Soukoulis CM. Repulsive Casimir force in chiral metamaterials. Phys Rev Lett. 2009 Sep 04;103(10):103602. doi: 10.1103/PhysRevLett.103.103602. Epub 2009 Sep 04. PMID: 19792309.
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Reliability of accelerometric measurement of physical activity in older adults-the benefit of using the trimmed sum.

European review of aging and physical activity : official journal of the European Group for Research into Elderly and Physical Activity

Trampisch US, Platen P, Trampisch M, Moschny A, Thiem U, Hinrichs T.
PMID: 23144665
Eur Rev Aging Phys Act. 2012 Oct;9(2):143-148. doi: 10.1007/s11556-012-0100-x. Epub 2012 Apr 22.

There is general consensus that physical activity is important for preserving functional capacities of older adults and positively influencing quality of life. While accelerometry is widely accepted and applied to assess physical activity in studies, several problems with this...

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Trampisch US, Platen P, Trampisch M, et al. Reliability of accelerometric measurement of physical activity in older adults-the benefit of using the trimmed sum. Eur Rev Aging Phys Act. 2012;9(2):143-148doi: 10.1007/s11556-012-0100-x.
Trampisch, U. S., Platen, P., Trampisch, M., Moschny, A., Thiem, U., & Hinrichs, T. (2012). Reliability of accelerometric measurement of physical activity in older adults-the benefit of using the trimmed sum. European review of aging and physical activity : official journal of the European Group for Research into Elderly and Physical Activity, 9(2), 143-148. https://doi.org/10.1007/s11556-012-0100-x
Trampisch, Ulrike Sonja, et al. "Reliability of accelerometric measurement of physical activity in older adults-the benefit of using the trimmed sum." European review of aging and physical activity : official journal of the European Group for Research into Elderly and Physical Activity vol. 9,2 (2012): 143-148. doi: https://doi.org/10.1007/s11556-012-0100-x
Trampisch US, Platen P, Trampisch M, Moschny A, Thiem U, Hinrichs T. Reliability of accelerometric measurement of physical activity in older adults-the benefit of using the trimmed sum. Eur Rev Aging Phys Act. 2012 Oct;9(2):143-148. doi: 10.1007/s11556-012-0100-x. Epub 2012 Apr 22. PMID: 23144665; PMCID: PMC3459084.
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