Results 61 to 70 of about 419,418 (274)

Generalized golden ratios of ternary alphabets

Journal of the European Mathematical Society, 2011
Expansions in noninteger bases often appear in number theory and probability theory, and they are closely connected to ergodic theory, measure theory and topology. For two-letter alphabets the golden ratio plays a special role: in smaller bases only trivial expansions are unique, whereas in greater bases there exist nontrivial unique expansions.
KOMORNIK V, LAI, ANNA CHIARA, PEDICINI M.   +2 more
openaire   +6 more sources

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

FEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini, Nicolò Antonelli, Gianluca Molla   +2 more
wiley   +1 more source

Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity

FEBS Open Bio, EarlyView.
Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz, Bruna Abreu, Cindy Mendes, Catarina Freitas‐Dias, Filipe Gonçalves, Fernanda Silva, José Ramalho, Saudade André, Vasco D. B. Bonifácio, Jacinta Serpa   +9 more
wiley   +1 more source

MATHEMATICAL PROPERTIES OF THE GOLDEN RATIO – A FASCINATING NUMBER

Journal of Industrial Design and Engineering Graphics, 2013
The Golden Ratio appears in many situations: in geometry, in lists with special numbers drawn up by mathematicians, in art history lectures, in rose petals arrangement or spiral shells of mollusks. This paper presents definitions and algebraic properties
DOBRE Daniel
doaj  

FULL WAVEFORM INVERSION USING REVERSE TIME MIGRATION AND GOLDEN RATIO

JGE
Seismic wave imaging techniques, such as conventional full-waveform inversion (FWI), which utilize numerical solutions of seismic wave equations, can be a valuable tool for estimating high resolution models of complex geological conditions.
Made Jnanaparama Aparajita, M Rafif Pascaloa, Ahmad Dedi Putra, Harish Hartsa Naufal   +3 more
doaj   +1 more source

The golden ratio prediction for the solar neutrino mixing

, 2007
We present a simple texture that predicts the cotangent of the solar neutrino mixing angle to be equal to the golden ratio. This prediction is 1.4 standard deviations below the present best-fit value and final SNO and KamLAND data could discriminate it ...
Alessandro Strumia, M. Gell-Mann, Martti Raidal, T. Yanagida, Yuji Kajiyama   +4 more
core   +1 more source

Metformin promotes mitochondrial integrity through AMPK‐signaling in Leber's hereditary optic neuropathy

FEBS Open Bio, EarlyView.
Metformin mediates mitochondrial quality control in Leber's hereditary optic neuropathy (LHON) fibroblasts carrying mtDNA mutations. At therapeutic levels, metformin activates AMPK signaling to restore mitochondrial dynamics by promoting fusion and restraining fission, while preserving mitochondrial mass, enhancing autophagy/mitophagy and biogenesis ...
Chatnapa Panusatid, Rapasviranda Soiyangsuk, Maneeluck Tanadjindarat, Chayanon Peerapittayamongkol   +3 more
wiley   +1 more source

Role of Formal Artistic Education in the Relationship between Golden Proportion and Perceived Beauty of Artistic Stimuli

Psicológica
The golden ratio is defined as an uncanny relationship between numbers and beauty that roots in a two-millennia tradition. Two experiments evaluated the relationship between formal aesthetic education and the evaluation of beautifulness of artistic ...
A. Félix Vico-Prieto, Ángel Cagigas, Juan M. Rosas, José E. Callejas-Aguilera   +3 more
doaj   +1 more source

Meta‐analysis fails to show any correlation between protein abundance and ubiquitination changes

FEBS Open Bio, EarlyView.
We analyzed over 50 published proteomics datasets to explore the relationship between protein levels and ubiquitination changes across multiple experimental conditions and biological systems. Although ubiquitination is often associated with protein degradation, our analysis shows that changes in ubiquitination do not globally correlate with changes in ...
Nerea Osinalde, Unai Alduntzin, Gorka Prieto, Ugo Mayor   +3 more
wiley   +1 more source

Simple nonlinear models suggest variable star universality

, 2015
Dramatically improved data from observatories like the CoRoT and Kepler spacecraft have recently facilitated nonlinear time series analysis and phenomenological modeling of variable stars, including the search for strange (aka fractal) or chaotic ...
Arnold, Behnam Kia, Bondeson, Cubero, Ditto, Eddington, Feigenbaum, Feudel, Ghys, Grebogi, Greenberg, Guzzo, Hilborn, Hippke, John F. Lindner, John G. Learned, Lainey, Lecar, Lindner, Livio, Lyubimov, Maslov, Michael Hippke, Molchanov, Moskalik, Moskalik, Netzel, Pikovsky, Press, Romeiras, Smolec, Szabo, Vivek Kohar, William L. Ditto, Zhou   +34 more
core   +1 more source