Sara Walker

Asst Professor

  • 661 Citations
  • 16 h-Index
20082021

Research output per year

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Research Output

2020

Cell phenotypes as macrostates of the GRN dynamics

Borriello, E., Walker, S. I. & Laubichler, M. D., Jan 1 2020, (Accepted/In press) In : Journal of Experimental Zoology Part B: Molecular and Developmental Evolution. 334, 4, p. 213-224 12 p.

Research output: Contribution to journalArticle

Division of labour promotes the spread of information in colony emigrations by the ant Temnothorax rugatulus

Valentini, G., Masuda, N., Shaffer, Z., Hanson, J. R., Sasaki, T., Walker, S. I., Pavlic, T. P. & Pratt, S. C., Apr 8 2020, In : Proceedings. Biological sciences. 287, 1924, 1 p.

Research output: Contribution to journalArticle

Open Access
2019

Clone Swarms: Learning to Predict and Control Multi-Robot Systems by Imitation

Zhou, S., Phielipp, M. J., Sefair, J. A., Walker, S. I. & Amor, H. B., Nov 2019, 2019 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2019. Institute of Electrical and Electronics Engineers Inc., p. 4092-4099 8 p. 8967824. (IEEE International Conference on Intelligent Robots and Systems).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Environmental control programs the emergence of distinct functional ensembles from unconstrained chemical reactions

Surman, A. J., Rodriguez-Garcia, M., Abul-Haija, Y. M., Cooper, G. J. T., Gromski, P. S., Turk-MacLeoda, R., Mullin, M., Mathis, C., Walker, S. & Cronin, L., Jan 1 2019, In : Proceedings of the National Academy of Sciences of the United States of America. 116, 12, p. 5387-5392 6 p.

Research output: Contribution to journalArticle

Open Access
5 Scopus citations

Integrated information theory and isomorphic feed-forward philosophical Zombies

Hanson, J. R. & Walker, S. I., Nov 1 2019, In : Entropy. 21, 11, 1073.

Research output: Contribution to journalArticle

Open Access

The new physics needed to probe the origins of life

Walker, S. I., May 2 2019, In : Nature. 569, 7754, p. 36-38 3 p.

Research output: Contribution to journalComment/debate

Open Access
2 Scopus citations

Universal scaling across biochemical networks on Earth

Kim, H., Smith, H. B., Mathis, C., Raymond, J. & Walker, S., Jan 16 2019, In : Science Advances. 5, 1, eaau014.

Research output: Contribution to journalArticle

2 Scopus citations
2018

Criticality Distinguishes the Ensemble of Biological Regulatory Networks

DANIELS, BRYAN., Kim, H., Moore, D., Zhou, S., Smith, H. B., Karas, B., Kauffman, S. A. & Walker, S., Sep 28 2018, In : Physical Review Letters. 121, 13, 138102.

Research output: Contribution to journalArticle

10 Scopus citations

Exoplanet Biosignatures: A Review of Remotely Detectable Signs of Life

Schwieterman, E. W., Kiang, N. Y., Parenteau, M. N., Harman, C. E., Dassarma, S., Fisher, T. M., Arney, G. N., Hartnett, H., Reinhard, C. T., Olson, S. L., Meadows, V. S., Cockell, C. S., Walker, S., Grenfell, J. L., Hegde, S., Rugheimer, S., Hu, R. & Lyons, T. W., Jun 2018, In : Astrobiology. 18, 6, p. 663-708 46 p.

Research output: Contribution to journalReview article

72 Scopus citations

Exoplanet Biosignatures: At the Dawn of a New Era of Planetary Observations

Kiang, N. Y., Domagal-Goldman, S., Parenteau, M. N., Catling, D. C., Fujii, Y., Meadows, V. S., Schwieterman, E. W. & Walker, S., Jun 1 2018, In : Astrobiology. 18, 6, p. 619-629 11 p.

Research output: Contribution to journalReview article

12 Scopus citations

Exoplanet Biosignatures: Future Directions

Walker, S., Bains, W., Cronin, L., Dassarma, S., Danielache, S., Domagal-Goldman, S., Kacar, B., Kiang, N. Y., Lenardic, A., Reinhard, C. T., Moore, W., Schwieterman, E. W., Shkolnik, E. & Smith, H. B., Jun 2018, In : Astrobiology. 18, 6, p. 779-824 46 p.

Research output: Contribution to journalArticle

25 Scopus citations

Inform: Efficient information-theoretic analysis of collective behaviors

Moore, D. G., Valentini, G., Walker, S. I. & Levin, M., Jan 1 2018, In : Frontiers Robotics AI. 5, JUN, 60.

Research output: Contribution to journalArticle

4 Scopus citations

Inform: A toolkit for information-theoretic analysis of complex systems

Moore, D. G., Valentini, G., Walker, S. & Levin, M., Feb 2 2018, 2017 IEEE Symposium Series on Computational Intelligence, SSCI 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc., p. 1-8 8 p. (2017 IEEE Symposium Series on Computational Intelligence, SSCI 2017 - Proceedings; vol. 2018-January).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations
2017

An information-based classification of elementary cellular automata

Borriello, E. & Walker, S., 2017, In : Complexity. 2017, 1280351.

Research output: Contribution to journalArticle

2 Scopus citations
10 Scopus citations

From matter to life: Information and causality

Walker, S., Davies, P. & Ellis, G. F. R., Jan 1 2017, Cambridge University Press. 494 p.

Research output: Book/ReportBook

12 Scopus citations

How causal analysis can reveal autonomy in models of biological systems

Marshall, W., Kim, H., Walker, S., Tononi, G. & Albantakis, L., Dec 28 2017, In : Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 375, 2109, 20160358.

Research output: Contribution to journalArticle

12 Scopus citations

Introduction

Walker, S., Davies, P. & Ellis, G. F. R., Jan 1 2017, From Matter to Life: Information and Causality. Cambridge University Press, p. 1-16 16 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Origins of life: A problem for physics, a key issues review

Walker, S., Aug 14 2017, In : Reports on Progress in Physics. 80, 9, 092601.

Research output: Contribution to journalReview article

24 Scopus citations

Physical universality, state-dependent dynamical laws and open-ended novelty

Adams, A. M., Berner, A., Davies, P. & Walker, S., Sep 1 2017, In : Entropy. 19, 9, 461.

Research output: Contribution to journalArticle

Prebiotic RNA network formation: A taxonomy of molecular cooperation

Mathis, C., Ramprasad, S. N., Walker, S. & Lehman, N., Dec 2017, In : Life. 7, 4, 38.

Research output: Contribution to journalArticle

7 Scopus citations

Real-world open-ended evolution: A league of legends adventure

Adams, A. M. & Walker, S., Jan 1 2017, In : International Journal of Design and Nature and Ecodynamics. 12, 4, p. 458-469 12 p.

Research output: Contribution to journalArticle

1 Scopus citations

Re-conceptualizing the origins of life

Walker, S., Packard, N. & Cody, G. D., Dec 28 2017, In : Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 375, 2109, 20160337.

Research output: Contribution to journalReview article

6 Scopus citations

The Emergence of Life as a First-Order Phase Transition

Mathis, C., Bhattacharya, T. & Walker, S., Mar 1 2017, In : Astrobiology. 17, 3, p. 266-276 11 p.

Research output: Contribution to journalArticle

8 Scopus citations

The “hard problem” of life

Walker, S. & Davies, P., Jan 1 2017, From Matter to Life: Information and Causality. Cambridge University Press, p. 19-37 19 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

4 Scopus citations
2016

Beyond prebiotic chemistry: What dynamic network properties allow the emergence of life?

Cronin, L. & Walker, S., Jun 3 2016, In : Science. 352, 6290, p. 1174-1175 2 p.

Research output: Contribution to journalShort survey

25 Scopus citations

The astrobiology primer v2.0

Domagal-Goldman, S. D., Wright, K. E., Adamala, K., De La Rubia, L. A., Bond, J., Dartnell, L. R., Goldman, A. D., Lynch, K., Naud, M. E., Paulino-Lima, I. G., Singer, K., Walter-Antonio, M., Abrevaya, X. C., Anderson, R., Arney, G., Atri, D., Azuá-Bustos, A., Bowman, J. S., Brazelton, W. J., Brennecka, G. A. & 29 others, Carns, R., Chopra, A., Colangelo-Lillis, J., Crockett, C. J., De Marines, J., Frank, E. A., Frantz, C., De La Fuente, E., Galante, D., Glass, J., Gleeson, D., Glein, C. R., Goldblatt, C., Horak, R., Horodyskyj, L., Kaçar, B., Kereszturi, A., Knowles, E., Mayeur, P., McGlynn, S., Miguel, Y., Montgomery, M., Neish, C., Noack, L., Rugheimer, S., Stüeken, E. E., Tamez-Hidalgo, P., Walker, S. & Wong, T., Aug 1 2016, In : Astrobiology. 16, 8, p. 561-653 93 p.

Research output: Contribution to journalArticle

36 Scopus citations

The hidden simplicity of biology

Davies, P. & Walker, S., Sep 9 2016, In : Reports on Progress in Physics. 79, 10, 102601.

Research output: Contribution to journalReview article

22 Scopus citations
33 Scopus citations
2015

New scaling relation for information transfer in biological networks

Kim, H., Davies, P. & Walker, S., Dec 6 2015, In : Journal of the Royal Society Interface. 12, 113, 20150944.

Research output: Contribution to journalArticle

15 Scopus citations

Prebiotic network evolution: Six key parameters

Nghe, P., Hordijk, W., Kauffman, S. A., Walker, S., Schmidt, F. J., Kemble, H., Yeates, J. A. M. & Lehman, N., 2015, In : Molecular BioSystems. 11, 12, p. 3206-3217 12 p.

Research output: Contribution to journalArticle

38 Scopus citations
2014

Quantum non-barking dogs

Walker, S., Davies, P., Samantray, P. & Aharonov, Y., Jun 2014, In : New Journal of Physics. 16, 063026.

Research output: Contribution to journalArticle

3 Scopus citations

Top-down causation and the rise of information in the emergence of life

Walker, S., Jan 1 2014, In : Information (Switzerland). 5, 3, p. 424-439 16 p.

Research output: Contribution to journalReview article

18 Scopus citations
2013

Evolutionary dynamics and information hierarchies in biological systems

Walker, S., Callahan, B. J., Arya, G., Barry, J. D., Bhattacharya, T., Grigoryev, S., Pellegrini, M., Rippe, K. & Rosenberg, S. M., Dec 2013, In : Annals of the New York Academy of Sciences. 1305, 1, p. 1-17 17 p.

Research output: Contribution to journalArticle

3 Scopus citations

Recycling of informational units leads to selection of replicators in a prebiotic soup

Vaidya, N., Walker, S. & Lehman, N., Feb 21 2013, In : Chemistry and Biology. 20, 2, p. 241-252 12 p.

Research output: Contribution to journalArticle

20 Scopus citations

The algorithmic origins of life

Walker, S. & Davies, P., Feb 6 2013, In : Journal of the Royal Society Interface. 10, 79, 20120869.

Research output: Contribution to journalReview article

75 Scopus citations
2012

Autocatalytic replication and homochirality in biopolymers: Is homochirality a requirement of life or a result of it?

Wu, M., Walker, S. & Higgs, P. G., Sep 1 2012, In : Astrobiology. 12, 9, p. 818-829 12 p.

Research output: Contribution to journalArticle

19 Scopus citations

Chiral Polymerization in Open Systems From Chiral-Selective Reaction Rates

Gleiser, M., Nelson, B. J. & Walker, S., Aug 1 2012, In : Origins of Life and Evolution of Biospheres. 42, 4, p. 333-346 14 p.

Research output: Contribution to journalArticle

7 Scopus citations

Evolutionary transitions and top-down causation

Walker, S., Cisneros, L. & Davies, P., Dec 1 2012, Artificial Life 13: Proceedings of the 13th International Conference on the Simulation and Synthesis of Living Systems, ALIFE 2012. p. 283-290 8 p. (Artificial Life 13: Proceedings of the 13th International Conference on the Simulation and Synthesis of Living Systems, ALIFE 2012).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

18 Scopus citations

Life's chirality from prebiotic environments

Gleiser, M. & Walker, S., Oct 1 2012, In : International Journal of Astrobiology. 11, 4, p. 287-296 10 p.

Research output: Contribution to journalArticle

3 Scopus citations

Universal sequence replication, reversible polymerization and early functional biopolymers: A model for the initiation of prebiotic sequence evolution

Walker, S., Grover, M. A. & Hud, N. V., Apr 6 2012, In : PloS one. 7, 4, e34166.

Research output: Contribution to journalArticle

41 Scopus citations
2009

Toward homochiral protocells in noncatalytic peptide systems

Gleiser, M. & Walker, S. I., Sep 1 2009, In : Origins of Life and Evolution of Biospheres. 39, 5, p. 479-493 15 p.

Research output: Contribution to journalArticle

14 Scopus citations
2008

An extended model for the evolution of prebiotic homochirality: A bottom-up approach to the origin of life

Gleiser, M. & Walker, S. I., Aug 1 2008, In : Origins of Life and Evolution of Biospheres. 38, 4, p. 293-315 23 p.

Research output: Contribution to journalArticle

28 Scopus citations

Punctuated chirality

Gleiser, M., Thorarinson, J. & Walker, S. I., Dec 1 2008, In : Origins of Life and Evolution of Biospheres. 38, 6, p. 499-508 10 p.

Research output: Contribution to journalReview article

21 Scopus citations