نتایج جستجو برای: collective behaviors

تعداد نتایج: 179228  

Journal: :Artificial life 1997
Takashi Ikegami Shin I. Nishimura

The emergence of collective strategies in a prey-predator system is studied. We use the term "collective" in the sense of the collective motion of defense or attack often found in behaviors of animal groups. In our prey-predator system, both prey and predators move around on a two-dimensional plane, interacting by playing a game; predators can score by touching the backside of a prey. Threshold...

2009
John Drury

Accounts from over 90 survivors and 56 witnesses of the 2005 London bombings were analysed to determine the relative prevalence of mass behaviors associated with either psychosocial vulnerability (e.g. ‘selfishness’, mass panic) or collective resilience (e.g. help, unity). ‘Selfish’ behaviors were found to be rare; mutual helping was more common. There is evidence for (a) a perceived continued ...

2017
Kai Papenfort Justin E. Silpe Kelsey R. Schramma Jian-Ping Cong Mohammad R. Seyedsayamdost Bonnie L. Bassler

Quorum sensing (QS) is a cell-cell communication process that enables bacteria to track cell population density and orchestrate collective behaviors. QS relies on the production and detection of, and the response to, extracellular signal molecules called autoinducers. In Vibrio cholerae, multiple QS circuits control pathogenesis and biofilm formation. Here, we identify and characterize a new QS...

2015
W. J. Chen Yue Zheng Biao Wang

The collective dipole behaviors in (BaTiO3)m/(SrTiO3)n composite nanowires are investigated based on the first-principles-derived simulations. It demonstrates that such nanowire systems exhibit intriguing dipole orders, due to the combining effect of the anisotropic electrostatic interaction of the nanowire, the SrTiO3-layer-modified electrostatic interaction and the multiphase ground state of ...

2014
Yoji Kawamura

A system of coupled oscillators can exhibit a rich variety of dynamical behaviors. When we investigate the dynamical properties of the system, we first analyze individual oscillators and the microscopic interactions between them. However, the structure of a coupled oscillator system is often hierarchical, so that the collective behaviors of the system cannot be fully clarified by simply analyzi...

2002
Melanie Mitchell Mark Newman

A “complex system” is a group or organization which is made up of many interacting parts. Archetypal complex systems include the global climate, economies, ant colonies, and immune systems. In such systems the individual parts—called “components” or “agents”— and the interactions between them often lead to large-scale behaviors which are not easily predicted from a knowledge only of the behavio...

2012
Leandro Gouveia Lucas Pereira Michelle Scott Ian Oakley

This paper presents Eco-avatars, a tool aiming to promote long-term energy conservation behaviors across householders. It takes advantage of the emotional links that can form between humans and avatars, or personal digital personifications. The application represents each member of a household as an avatar situated in a shared graphical environment that reacts according to individual consumptio...

2016
Richard Olsen

In this chapter, the authors use an Agent-Based Modeling (ABM) approach to model trading behavior in the Foreign Exchange (FX) market. They establish statistical properties (stylized facts) of the traders’ trading behavior in the FX market using a high-frequency dataset of anonymised OANDA individual traders’ historical transactions on an account level spanning 2.25 years. Using the identified ...

Journal: :Physical review. E 2016
Hironobu Nogucci Shuji Ishihara

Networks of biofilaments are essential for the formation of cellular structures that support various biological functions. For the most part, previous studies have investigated the collective dynamics of rodlike biofilaments; however, the shapes of the actual subcellular components are often more elaborate. In this study, we considered an active object composed of two active filaments, which re...

2005
Tzu-Chuan Chou Jau-Rong Chen Ching-Kuo Pu

The importance of e-government (EG) has been widely recognized. However, we know little about the civil servants’ collective actions in EG development. This paper examines the collective action problems of getting civil servants to cooperating in EG developing process, to understand the so-called “free-riding” behavior of servants. In particularly, we propose that information literacy is a crit...

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