Results 41 to 50 of about 23,153,291 (313)
Models for online, open, flexible and technology enhanced higher education across the globe – a comparative analysis [PDF]
, 2018 Digital technology has become near ubiquitous in many countries today or is on a path to reach this state in the near future. Across the globe the share of internet users, for instance, has jumped in the last ten years.
Farrow, Robert +2 more
core
Eigenvalue and Eigenvector Statistics in Time Series Analysis [PDF]
, 2019 The study of correlated time-series is ubiquitous in statistical analysis, and the matrix decomposition of the cross-correlations between time series is a universal tool to extract the principal patterns of behavior in a wide range of complex systems ...
Barucca, Paolo +2 more
core +3 more sources
Cell Division, 2019 Background Fibroblast growth factor (FGF) and tumor growth factor-β (TGFβ) have emerged as pivotal regulators during the progression of osteosarcoma (OS).
Shuang-Qing Li +6 more
doaj +1 more source
Journal of Experimental & Clinical Cancer Research, 2022 Background Epithelial-to-mesenchymal transition (EMT) encompasses a highly dynamic and complex key process which leads to metastatic progression. In high-grade serous ovarian carcinoma (HG-SOC), endothelin-1 (ET-1)/endothelin A receptor (ETAR) signaling ...
Rosanna Sestito +4 more
doaj +1 more source
The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada
Population Ecology, EarlyView.We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley +1 more source
Models and Methods of Support Decision for Management of IT Companies [PDF]
, 2020 Studies have been carried out and methods have been proposed to increase the competitiveness of IT companies by improving the quality of their state analysis taking into account stochastic indicators.
Lyfar, V. (Volodymyr) +1 more
core
Dendroidal sets as models for connective spectra [PDF]
, 2014 Dendroidal sets have been introduced as a combinatorial model for homotopy coherent operads. We introduce the notion of fully Kan dendroidal sets and show that there is a model structure on the category of dendroidal sets with fibrant objects given by ...
Bašić, Matija, Nikolaus, Thomas
core +2 more sources
Network topology drives population temporal variability in experimental habitat networks
Population Ecology, EarlyView.Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu +3 more
wiley +1 more source
Integrable sigma models and perturbed coset models [PDF]
, 2001 Sigma models arise frequently in particle physics and condensed-matter physics as low-energy effective theories. In this paper I compute the exact free energy at any temperature in two hierarchies of integrable sigma models in two dimensions.
Fendley, Paul
core +2 more sources
A Taxonomy of Polytomous Item Response Models [PDF]
arXiv, 2020 A common framework is provided that comprises classical ordinal item response models as the cumulative, sequential and adjacent categories models as well as nominal response models and item response tree models. The taxonomy is based on the ways binary models can be seen as building blocks of the various models.
arxiv