Results 71 to 80 of about 5,534,659 (353)

From Fibonacci Sequence to the Golden Ratio

Journal of Mathematics, 2013
We consider the well-known characterization of the Golden ratio as limit of the ratio of consecutive terms of the Fibonacci sequence, and we give an explanation of this property in the framework of the Difference Equations Theory. We show that the Golden
Alberto Fiorenza, Giovanni Vincenzi
doaj   +1 more source

The phyllotaxis of the aortic valve

Monaldi Archives for Chest Disease, 2019
Biological systems ubiquitously and inevitably exhibit stochasticity in traits from the molecular level to the multicellular and morphological level.
Marco Moscarelli, Ruggero De Paulis
doaj   +1 more source

Spherical codes, maximal local packing density, and the golden ratio

, 2010
The densest local packing (DLP) problem in d-dimensional Euclidean space Rd involves the placement of N nonoverlapping spheres of unit diameter near an additional fixed unit-diameter sphere such that the greatest distance from the center of the fixed ...
Adam B. Hopkins, Cohn H., Conway J. H., Ericson T., Frank H. Stillinger, Kabatiansky G. A., Lenard A., Salvatore Torquato   +7 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Geometrical analysis of architectural drawnings in the Shah-mosque Isfahan

Curved and Layered Structures, 2020
The golden number has been one of the most important measures of beauty from ancient Greece till now. Although the reason still unclear, it is certain that the golden ratio has a direct correlation with beauty.
Goudarzi Masoumeh, Bemanian Mohammadreza, Leylian Mohammadreza   +2 more
doaj   +1 more source

Strange nonchaotic stars

, 2015
The unprecedented light curves of the Kepler space telescope document how the brightness of some stars pulsates at primary and secondary frequencies whose ratios are near the golden mean, the most irrational number. A nonlinear dynamical system driven by
Ditto, William L., Hippke, Michael, Kia, Behnam, Kohar, Vivek, Learned, John G., Lindner, John F.   +5 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Characterizing the salivary RNA landscape to identify potential diagnostic, prognostic, and follow‐up biomarkers for breast cancer

Molecular Oncology, EarlyView.
This study explores salivary RNA for breast cancer (BC) diagnosis, prognosis, and follow‐up. High‐throughput RNA sequencing identified distinct salivary RNA signatures, including novel transcripts, that differentiate BC from healthy controls, characterize histological and molecular subtypes, and indicate lymph node involvement.
Nicholas Rajan, Irina Primac, Emre Etlioglu, Laurens Debruyne, Ann Janssen, Magy Sallam, Kevin Tabury, Roel Quintens, Wiebren Tjalma, Mohammed Abderrafi Benotmane   +9 more
wiley   +1 more source

Icosahedral (A5) Family Symmetry and the Golden Ratio Prediction for Solar Neutrino Mixing

, 2009
We investigate the possibility of using icosahedral symmetry as a family symmetry group in the lepton sector. The rotational icosahedral group, which is isomorphic to A5, the alternating group of five elements, provides a natural context in which to ...
Alexander J. Stuart, B. Pontecorvo, B. Pontecorvo, H. Coxeter, J. S. Lomont, Lisa L. Everett, M. Gell-Mann, M. Hamermesh, T. Yanagida   +8 more
core   +1 more source

Golden Ratio Poetry.pdf

, 2021
If we look at poetry carefully, we find that every formal rule in poetry is a mathematical rule. This restriction defines the form of poetry. Thus, it can be said that no form of poetry is without mathematics. Both mathematics and poetry share the requirement of great imagination.". And this is just thebeginning of the similarities between them.
openaire   +1 more source