Results 21 to 30 of about 281,272 (163)
Ecology and Evolution, 2021 Understanding trade‐offs between demographic parameters is crucial when investigating community assembly rules in high‐diversity forests. To this end, we estimated mortality and growth parameters, and correlations among them, across entire size classes ...
Takashi Masaki +4 more
doaj +1 more source
A Physical Measure for Characterizing Crossover from Integrable to Chaotic Quantum Systems
Entropy, 2023 In this paper, a quantity that describes a response of a system’s eigenstates to a very small perturbation of physical relevance is studied as a measure for characterizing crossover from integrable to chaotic quantum systems.
Chenguang Y. Lyu, Wen-Ge Wang
doaj +1 more source
Transition probabilities in Gd III [PDF]
Astronomy & Astrophysics, 2002 Theoretical lifetimes, calculated with inclusion of core-polarization eects, have been determined for five 4f 7 6p levels of doubly ionized gadolinium. They agree quite well with recent experimental values measured by time-resolved laser- induced fluorescence spectroscopy.
Biémont, Emile +2 more
openaire +2 more sources
Desimal, 2022 In this research, a Markov chain model was constructed from the conditions that might be experienced by the people during the Delta or Omicron variant of the COVID-19 pandemic.
Dwi Haryanto, Fida Fathiyah Addini
doaj +1 more source
Quantitative Studies for Cell-Division Cycle Control
Frontiers in Physiology, 2019 The cell-division cycle (CDC) is driven by cyclin-dependent kinases (CDKs). Mathematical models based on molecular networks, as revealed by molecular and genetic studies, have reproduced the oscillatory behavior of CDK activity.
Yukinobu Arata, Hiroaki Takagi
doaj +1 more source
Network Analysis Using Markov Chain Applied to Wildlife Habitat Selection
Diversity, 2022 In the present study, behavioral states for habitat selection are examined using a discrete-time Markov chain (DTMC) combined with a network model with wildlife movement data.
Thakur Dhakal +7 more
doaj +1 more source
Transition patterns of weight status: A cohort study of Chinese school-age children
Frontiers in Public Health, 2022 BackgroundChildhood overweight and obesity are increasing public concerns. However, little is known about the transition patterns of childhood weight status, especially in developing countries.
Xin Hu +5 more
doaj +1 more source
Atoms, 2023 The growing interest in atomic structures of moderately stripped alkali-like ions in the diagnostic study and modeling of astrophysical and laboratory plasma makes an accurate many-body study of atomic properties inevitable. This work presents transition
Swapan Biswas +4 more
doaj +1 more source
A Noncentral Lindley Construction Illustrated in an INAR(1) Environment
Stats, 2022 This paper proposes a previously unconsidered generalization of the Lindley distribution by allowing for a measure of noncentrality. Essential structural characteristics are investigated and derived in explicit and tractable forms, and the estimability ...
Johannes Ferreira, Ané van der Merwe
doaj +1 more source
Magnetic Multipole Transition Probabilities [PDF]
Highlights of Astronomy, 1971 AbstractA review is given of the occurrence and transition probabilities of spectrum lines arising from magnetic quadrupole radiation. Magnetic dipole radiation in relativistic quantum mechanics is also discussed.
openaire +2 more sources