Tag: complex systems

Postdoctoral Positions at CASCI

The Complex Adaptive Systems and Computational Intelligence (CASCI) lab at the Systems Science and Industrial Engineering Department, Binghamton University (State University of New York)  is accepting applications for one or more full-time non-tenure track postdoctoral fellows to conduct interdisciplinary research in Complex Networks and Systems applied to various social, ecological, biological, medicine and health problems.

Recent projects at the lab, funded by NIH, NSF, and FCT, Include:

The appointments are full-time for 12 months, with potential to be extended an additional year subject to funding and satisfactory performance. We offer a competitive salary with generous benefits.

The postdocs will be supervised by Prof. Luis M Rocha and join a dynamic and interdisciplinary team embedded in the cross-university Center for Social and Biomedical Complexity (CSBC) and the Center for Collective Dynamics of Complex Systems (CoCo)  that includes systems scientists, biologists, computer scientists, and social scientists. Please contact him for further information.

Basic Qualifications: A PhD is required in Complex Systems, Network Science, Computer or Computational Science, Computational Biology, Applied Mathematics, Physics, Statistics, Artificial Intelligence or related field; a strong background in analysis and modeling of complex systems and networks; and solid programming skills necessary to handle big data and develop large scale simulations. ABD (all but dissertation) candidates may apply but will need the Ph.D. prior to start.

 … continue reading.

Criticality in Biochemical Networks

J Royal Society Interface

Researchers from our center, in collaboration with State University of New York, Binghamton University and the Instituto Gulbenkian de Ciência developed a mathematical and computational framework to understand how biochemical networks contribute to the evolvability, robustness, and resilience of biological organisms.

In a paper in the journal Journal of the Royal Society InterfaceLuis Rocha, George J. Klir Professor of Systems Science, and Drs. Manuel Marques-Pita and Santosh Manicka (who earned his Ph.D. in complex networks and systems from the Luddy School), show that a large amount of redundancy exists in how genes, proteins and other biochemical components process signals. This results in much robustness to perturbations, allowing biological systems to exist in a stable or near-critical dynamical regime, despite being composed of thousands of biochemical variables which would ordinarily result in chaotic dynamics.

The measure of effective connectivity developed by Rocha and Marques-Pita captures redundancy in automata networks and is shown in the paper to be highly predictive of dynamical regime of biochemical systems ranging from flower development to breast cancer in humans. The approach thus adds empirical validity to several  well-known hypotheses in theoretical biology: 1) that canalization adds robustness to biological development put forth by C.H. Waddington, 2) that redundancy is essential for evolvability put forth by Michael Conrad, and 3) that biological organisms exist in a near-critical dynamical regime put forth by Stuart Kauffman. The new work further connects the three hypotheses by equating canalization with redundancy, providing a  measure of effective connectivity based on dynamical redundancy, and further showing that this measure very accurately predicts the dynamical regime of biochemical networks.

You can read the article following the links in reference:

Manicka Santosh, Marques-Pita Manuel and Rocha Luis M. [2022]. “Effective connectivity determines the critical dynamics of biochemical continue reading.

CNETS professors create complex systems on the dance floor

“On the last Friday of each month, instead of heading home to their families after the weekly School of Informatics, Computing and Engineering faculty meeting, professors Luis Rocha and Johan Bollen head to the Root Cellar Lounge and become DJ E-Trash and DJ Angst. […] Both Bollen and Rocha are considered experts in the field of complex networks and systems, and they agree that when they DJ, they are part of just the kind of complex systems they study”. See full article at IU News. … continue reading.

CNETS PhD Program central in new $3 million NSF Training Grant

Luis RochaThe National Science Foundation has awarded nearly $3 million to train future research leaders in Complex Networks and Systems, via the PhD Program established by CNETS faculty. The highly selective grant from the NSF’s Research Traineeship Award will create a dual Ph.D. program at Indiana University to train graduate students to be proficient in both a specific discipline, such as psychology or political science, as well as network, complexity and data science. The new Ph.D. program will also leverage the strengths of the Indiana Network Science Institute, or IUNI, to involve students in interdisciplinary research.”The biggest challenges currently faced by society require large teams of people who are ‘fluent’ in more than one scientific discipline,” said Luis Rocha, CNETS professor in the IU School of Informatics, Computing, and Engineering who will lead the new program. “But the current education model in academia is still largely focused on training researchers who know how to set up independent labs with agendas driven by a single person. If we want to take on the really big problems, we’ve got to create more scientists with deep expertise in multiple areas.” Full Press Release Available. … continue reading.

New Ph.D. Graduate

Congratulations to Alexander Gates for successfully defending his dissertation entitled “The anatomical and effective structure of complex systems” on April 3rd 2017, co-supervised by Randy beer and Luis Rocha. Alex completed a dual-PhD degree in the Complex Systems track of the Informatics PhD Program as well as the Cognitive Science program at Indiana University. Alex has accepted a postdoctoral position at Northeastern University at the Center for Complex Network Research. … continue reading.