Results 51 to 60 of about 1,931,646 (316)

Universal criterion for the breakup of invariant tori in dissipative systems

open access: yes, 1992
The transition from quasiperiodicity to chaos is studied in a two-dimensional dissipative map with the inverse golden mean rotation number. On the basis of a decimation scheme, it is argued that the (minimal) slope of the critical iterated circle map is ...
A. Cumming   +28 more
core   +1 more source

Distribution and incidence of viruses in Irish seed potato crops [PDF]

open access: yes, 2015
peer-reviewedVirus diseases are of key importance in potato production and in particular for the production of disease-free potato seed. However, there is little known about the frequency and distribution of potato virus diseases in Ireland.
Bonner, D.   +6 more
core   +1 more source

Appropriate proportions as guidelines in selection of anterior [PDF]

open access: yesMedicinski Glasnik, 2008
Aim To examine width-to-length and tooth-to-tooth width ratiosof maxillary anterior teeth and to compare the obtained proportionswith the width-to-length ratio of the hard palate, the GoldenProportion and the 75 % Proportion.Methods The widths and the ...
Ivan Kovačić   +3 more
doaj  

Maxillary Anterior Teeth Dimensions and Relative Width Proportions: A Narrative Literature Review

open access: yesDentistry Journal, 2023
Predictable results in the aesthetic treatment of anterior teeth can be obtained by resorting to the concept of dental aesthetics and, in particular, defining the ideal tooth dimensions and proportions to obtain a harmonious smile.
Francesca Cinelli   +4 more
doaj   +1 more source

The golden ratio—dispelling the myth

open access: yesMaxillofacial Plastic and Reconstructive Surgery
Background The purpose of this article is to explore the claims often cited in scientific journals regarding the golden ratio, and its proposed link to beauty and idealized forms in nature, including idealized human proportions.
Farhad B. Naini
doaj   +1 more source

Evaluation of the golden proportion and golden standard of maxillary anterior teeth in relation to smile attractiveness

open access: yesBrazilian Dental Science, 2019
Objective: The present study aimed to explore the existence of golden proportion (GP) between the widths of maxillary anterior teeth and golden standard (GS) for width to height ratio of maxillary central incisor in individuals with attractive and non ...
Marwan Ahmed Swileh   +2 more
semanticscholar   +1 more source

Interrogating the immune landscape of microsatellite stable RAS‐mutated colon cancer

open access: yesMolecular Oncology, EarlyView.
COLOSSUS project RAS‐mutated MSS colon cancer study explored transcriptomics and immune cell density by immunohistochemistry (IHC), Immunoscore (IS), ISIC/TuLIS scores, mutation counts, and detected different prevalences but similar microenvironment composition across immune markers with clinical relevance for future immunotherapy combination ...
Rodrigo Dienstmann   +61 more
wiley   +1 more source

Accidental Politicians: How Randomly Selected Legislators Can Improve Parliament Efficiency

open access: yes, 2011
We study a prototypical model of a Parliament with two Parties or two Political Coalitions and we show how the introduction of a variable percentage of randomly selected independent legislators can increase the global efficiency of a Legislature, in ...
Alessandro Pluchino   +34 more
core   +1 more source

Fundamental Physics and the Fine-Structure Constant [PDF]

open access: yes, 2016
From the exponential function of Euler’s equation to the geometry of a fundamental form, a calculation of the fine-structure constant and its relationship to the proton-electron mass ratio is given.
Sherbon, Michael A.
core   +5 more sources

Golden proportions as predictors of attractiveness and malocclusion

open access: yesIndian Journal of Dental Research, 2014
In recent years, the golden proportions have been evaluated by various researchers in the general population and orthodontic patients to establish their correlation with facial attractiveness and esthetics, but with conflicting results. The present study aimed to analyze the frontal facial golden proportions for three groups of young adult females, an ...
Ahluwalia Rajiv, Yadav Juhi
openaire   +3 more sources

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