Results 11 to 20 of about 10,749 (189)
LEIBNIZ: SIMETRIA E HARMONIA [PDF]
A partir da crítica ao conceito de força de Descartes e do advento do cálculo, ajuízoque seja possível associar a origem do conceito moderno de simetria a Leibniz, ou melhor, aoleibnizianismo. No entanto, diferentemente do matemático Hermann Weyl que pleiteia essagênese ao princípio da identidade dos indiscerníveis, argumento que o conceito de harmonia,
Sapunaru, Raquel Anna
openaire +3 more sources
Visualizing and teaching crystallographic symmetry using Jmol. [PDF]
The JmolSpace Group Symmetry Visualizer (https://spacegroups.symotter.org) is an online resource for the visualization of crystallographic symmetry built around the versatile Jmol application and represents a unique resource for students and educators in crystallography and researchers using crystallographic methods.The JmolSpace Group Symmetry ...
Johnston DH, Hanson RM.
europepmc +2 more sources
Simetria conforme e covariância galileana [PDF]
Dissertação (mestrado)—Universidade de Brasília, Instituto de Física, 2015. ; O objetivo desta dissertação é explorar uma versão preliminar de uma formulação covariante para teorias de campos não-relativísticas com simetria conforme. Primeiro, revisamos tal simetria e como se obtém o grupo conforme do espaço de Minkowski.
Melo, Gustavo Garcia de
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Simetria, Transi¸c˜ao de Fase e Viola¸c˜ao Espontˆanea de Simetria [PDF]
Simetrias e leis de conserva¸c˜ao s˜ao excelentes guias na formula¸c˜ao de modelos f´ısicos em diversas escalas de energia. A viola¸c˜ao de simetrias por transi¸c˜ao de fase ( viola¸c˜ao espontˆanea de simetria ) consegue descrever sistemas que v˜ao desde a Mat´eria Condensada at´e a F´ısica de Altas Energias.
Belich, H.
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The International Tables Symmetry Database
The International Tables Symmetry Database (https://symmdb.iucr.org/), part of International Tables for Crystallography, is a collection of individual databases of crystallographic space‐group and point‐group information. Programs are provided to access and interactively visualize the data, and also allow new data to be calculated `on the fly ...
Gemma de la Flor +3 more
wiley +1 more source
Skeletal age during hurricane impacts fluctuating asymmetry in Cayo Santiago rhesus macaques
Fluctuating asymmetry (FA), or random deviations from symmetry, can be used as a proxy for developmental instability, and anthropogenic and natural disruptions have been associated with increased levels of FA. In this study, we investigate the effect of demographic variables (age, sex, and decade of birth) and hurricane experience on FA in a model ...
Ashly N. Romero +3 more
wiley +1 more source
Mining is present in all major biomes worldwide and overlaps strongly with areas of importance for bird conservation. Mining causes multiple types of environmental disturbance, including habitat alteration, increased human presence and persistent heavy metal pollution. Feather coloration and fluctuating asymmetry (random deviation from perfect symmetry
Lynna Marie Kiere +5 more
wiley +1 more source
Read the free Plain Language Summary for this article on the Journal blog. Abstract Biological soil crusts (BSC) are complex biotic aggregates comprised of lichens, cyanobacteria, algae and other micro‐organism that are known to differently affect plant development along life cycle by selecting plant functional traits based on species‐specific effects.
Laura Ortiz +2 more
wiley +1 more source
Internalization of body shape ideals and body dissatisfaction: A systematic review and meta‐analysis
Abstract Objective The present meta‐analysis summarizes existing evidence on the relationship between the internalization of body shape ideals (IBSI) and body dissatisfaction. Method Pooled effect sizes (r) were computed using a random‐effects model. The robustness of the results was examined using influence analyses.
Adrian Paterna +3 more
wiley +1 more source
Comunicação: os paradigmas da simetria, antissimetria e assimetria
O trabalho examina como o processo da comunicação é representado (a) na etimologia da palavra comunicação, (b) nas metáforas cotidianas da comunicação e (c) nas teorias e nos modelos da comunicação do século XX.
Winfried Nöth
doaj +1 more source

