Results 51 to 60 of about 43,004,964 (363)

Fermionic Coset Models as Topological Models [PDF]

open access: yes, 1992
By considering the fermionic realization of $G/H$ coset models, we show that the partition function for the $U(1)/U(1)$ model defines a Topological Quantum Field Theory and coincides with that for a 2-dimensional Abelian BF system.
Rossini, G. L., Schaposnik, F. A.
core   +3 more sources

To model or not to model

open access: yesKybernetik, 1967
Self-improving control systems may belong to either of two categories, according to whether or not they embody an explicit model of the part of their environment with which they interact. The two forms of operation are discussed and compared, and it is shown that the two may be mathematically equivalent.
openaire   +3 more sources

FGF-induced LHX9 regulates the progression and metastasis of osteosarcoma via FRS2/TGF-β/β-catenin pathway

open access: yesCell 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

Effects of chronic browsing on life‐history traits of an irruptive large herbivore population

open access: yesPopulation Ecology, EarlyView.
This study aimed to determine the relationship between diet quality, body mass, and size (hind foot length), and female reproduction and sought to identify the mechanism by which high density under severe food limitations is maintained. Our results demonstrated that sika deer introduced to Nakanoshima Island have maintained high densities through high ...
Koichi Kaji   +9 more
wiley   +1 more source

MrBayes 3: Bayesian phylogenetic inference under mixed models

open access: yesBioinform., 2003
MrBayes 3 performs Bayesian phylogenetic analysis combining information from different data partitions or subsets evolving under different stochastic evolutionary models.
F. Ronquist, J. Huelsenbeck
semanticscholar   +1 more source

Sandpile models [PDF]

open access: yes, 2018
This survey is an extended version of lectures given at the Cornell Probability Summer School 2013. The fundamental facts about the Abelian sandpile model on a finite graph and its connections to related models are presented.
Járai, Antal A.
core   +2 more sources

Modelers Modelling Models [PDF]

open access: yesJournal of Innate Immunity, 2021
Arne Egesten, Heiko Herwald
openaire   +4 more sources

Functional interaction between endothelin-1 and ZEB1/YAP signaling regulates cellular plasticity and metastasis in high-grade serous ovarian cancer

open access: yesJournal 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

Combining transient dynamics and logistic‐asymptotic growth to study the recovery of two seabird populations after rat eradication

open access: yesPopulation Ecology, EarlyView.
This study examines the demographic dynamics of two seabird populations on Tromelin Island, 15 years after the eradication of brown rats. The results indicate that these populations are in good health and are expected to continue growing until breeding sites are saturated in about a century.
Merlène Saunier   +6 more
wiley   +1 more source

Models for online, open, flexible and technology enhanced higher education across the globe – a comparative analysis [PDF]

open access: yes, 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  

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