Results 11 to 20 of about 2,293,654 (219)

Complexity in quantum systems [PDF]

open access: yesPhysical Review E, 1994
We discuss the behavior of a quantum 1/2 spin coupled to a time dependent magnetic field, which can be quasiperiodic or random. For a quasiperiodic field, the time evolution of the system on a coarse grained space has autocorrelation, which does not decay, and positive topological entropy. The information complexity diverges as a stretched exponential,
CRISANTI, Andrea   +4 more
openaire   +3 more sources

System-of-Systems Complexity [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2013
In Proceedings AiSoS 2013, arXiv:1311 ...
openaire   +3 more sources

Complex clients - complex systems? [PDF]

open access: yesSouth Pacific Journal of Psychology, 2001
I would like to start with a tale… Exposure 'Some time ago a clinical psychologist registrar noted, vexedly, that it was all very well knowing what her clients needed to do if they were to improve, but it was no use at all when they stubbornly refused to adopt or deploy such life enhancing strategies.
openaire   +2 more sources

Complexity: against systems [PDF]

open access: yesTheory in Biosciences, 2011
This article assumes a specific intuitive notion of complexity as a difficulty to generate and/or assess the plausibility of models. Based on this intuitive understanding of complexity, it identifies two main causes of complexity, namely, radical openness and contextuality. The former is the idea that there are no natural systems.
openaire   +2 more sources

Complexity in the immune system [PDF]

open access: yesComputers & Chemical Engineering, 2005
25 pages, 12 ...
openaire   +2 more sources

Modeling complex systems [PDF]

open access: yesAgricultural Economics, 2010
AbstractEmpirical observations suggest that linear dynamics are not an adequate representation of ecological systems and that a realistic representation would require adoption of complex nonlinear dynamical systems with characteristics encountered in complex adaptive systems (CAS).
openaire   +2 more sources

The complexity of anatomical systems [PDF]

open access: yesTheoretical Biology and Medical Modelling, 2005
AbstractBackgroundThe conception ofanatomical entitiesas a hierarchy of infinitely graduated forms and the increase in the number of observed anatomical sub-entities and structural variables has generated a growingcomplexity, thus highlighting new properties of organised biological matter.Results(1) Complexity is so pervasive in the anatomical world ...
Grizzi, Fabio   +1 more
openaire   +2 more sources

Hospitalization Through Families’ Eyes: Comparing Inpatient Care Quality for Children With Sickle Cell Disease and Cystic Fibrosis in Canada

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Sickle cell disease (SCD) is a chronic, inherited hemoglobinopathy that requires frequent hospitalization for disease‐related complications. Canadian data on inpatient care is limited. This study compared caregiver‐reported hospital experiences of children with SCD to those with cystic fibrosis (CF), a chronic, autosomal recessive ...
Hailey M. Zwicker   +11 more
wiley   +1 more source

Complexity and fragility in system of systems

open access: yesInternational Journal of System of Systems Engineering, 2016
SoS are an ensemble of complex systems, which have the potential for an extraordinary amount of structural complexity, even temporarily, as a result of interconnections and couplings that can vary in strength. Because of this, SoS can be vulnerable to sudden catastrophic collapse as a result of small and insignificant partial functionality losses in ...
Efatmaneshnik, M   +2 more
openaire   +2 more sources

Time Toxicity in Wilms Tumor: Quantifying the Burden of Healthcare Interaction in the First Year After Diagnosis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Wilms tumor (WT) treatment imposes a significant time burden on patients and their families. Time toxicity is a patient‐centered metric that quantifies the burden of healthcare interaction. We sought to define time toxicity in the first year after diagnosis of WT and hypothesized that it would increase as tumor stage and treatment ...
Caleb Q. Ashbrook   +6 more
wiley   +1 more source

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