Results 61 to 70 of about 3,059,060 (366)

The Dynamics of a Genetic Algorithm for a Simple Learning Problem [PDF]

open access: yes, 1996
A formalism for describing the dynamics of Genetic Algorithms (GAs) using methods from statistical mechanics is applied to the problem of generalization in a perceptron with binary weights.
Rattray, Magnus, Shapiro, Jonathan
core   +4 more sources

How long do Red Queen dynamics survive under genetic drift? A comparative analysis of evolutionary and eco-evolutionary models

open access: yesBMC Evolutionary Biology, 2020
Background Red Queen dynamics are defined as long term co-evolutionary dynamics, often with oscillations of genotype abundances driven by fluctuating selection in host-parasite systems.
Hanna Schenk   +2 more
doaj   +1 more source

Chimera dynamics of generalized Kuramoto–Sakaguchi oscillators in two-population networks

open access: yesJournal of Physics A: Mathematical and Theoretical, 2023
Abstract Chimera dynamics, an intriguing phenomenon of coupled oscillators, is characterized by the coexistence of coherence and incoherence, arising from a symmetry-breaking mechanism. Extensive research has been performed in various systems, focusing on a system of Kuramoto–Sakaguchi (KS) phase oscillators.
Seungjae Lee, Katharina Krischer
openaire   +2 more sources

Continuous Monocyclic and Polycyclic Age Structured Models of Population Dynamics

open access: yesCommunication in Biomathematical Sciences, 2019
This paper focuses on the study of continuous age-structured models, or more general, physiologically structured models, which used for detailed and accurate study of population dynamics in many ecological, biological applications and medicine.
Vitalii V Akimenko
doaj   +1 more source

Dynamics of coupled spins in the white- and quantum-noise regime

open access: yes, 2009
We study the dynamics of dissipative spins for general spin-spin coupling. We investigate the population dynamics and relaxation of the purity in the white noise regime, in which exact results are available.
Blum   +12 more
core   +1 more source

Dynamics of spin-2 Bose condensate driven by external magnetic fields [PDF]

open access: yes, 2002
Dynamic response of the F=2 spinor Bose-Einstein condensate (BEC) under the influence of external magnetic fields is studied. A general formula is given for the oscillation period to describe population transfer from the initial polar state to other spin
C. K. Chan   +17 more
core   +2 more sources

CHANGES IN LAND USE AS CONSEQUENCE OF DEMOGRAPHIC TRANSFORMATIONS OF RURAL TERRITORIES OF THE VOLGOGRAD REGION

open access: yesЮг России: экология, развитие, 2016
Aim. Analysis of the population dynamics and changes in the share of arable land in the structure of land use separate territory for several historical periods, and to determine the causes of these changes. Methods.
N. V. Vishnyakov, D. A. Semenova
doaj   +1 more source

Whole MILC: Generalizing Learned Dynamics Across Tasks, Datasets, and Populations [PDF]

open access: yes, 2020
Behavioral changes are the earliest signs of a mental disorder, but arguably, the dynamics of brain function gets affected even earlier. Subsequently, spatio-temporal structure of disorder-specific dynamics is crucial for early diagnosis and understanding the disorder mechanism.
Mahmood, Usman   +6 more
openaire   +2 more sources

Psychosocial Outcomes in Patients With Endocrine Tumor Syndromes: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction The combination of disease manifestations, the familial burden, and varying penetrance of endocrine tumor syndromes (ETSs) is unique. This review aimed to portray and summarize available data on psychosocial outcomes in patients with ETSs and explore gaps and opportunities for future research and care.
Daniël Zwerus   +6 more
wiley   +1 more source

Data science without borders: bridging the divide in data science capacity across African health institutions

open access: yesFrontiers in Public Health
BackgroundEffective public health data science in Africa requires a comprehensive understanding of institutional capabilities across multiple dimensions.
Agnes N. Kiragga   +26 more
doaj   +1 more source

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