Results 11 to 20 of about 155 (138)

Growth functions of periodic space tessellations. [PDF]

open access: yesActa Crystallogr A Found Adv
For any periodic tilings of the plane by congruent polygons, growth functions are derived that count the numbers of vertices, edges and faces as the coverage expands. The functions are computed as polynomial formulas in a Python program and analyzed graphically using orphic diagrams.This work analyzes the rules governing the growth of the numbers of ...
Naskręcki B   +3 more
europepmc   +2 more sources

Characteristics of the Matuyama‐Brunhes Magnetic Field Reversal Based on a Global Data Compilation

open access: yesJournal of Geophysical Research: Solid Earth, Volume 128, Issue 2, February 2023., 2023
Abstract Magnetic field reversals are irregular events in Earth's history when the geomagnetic field changes its polarity. Reversals are recorded by spot and continuous remanent magnetization data collected from lava flows and marine sediments, respectively.
Ahmed Nasser Mahgoub   +2 more
wiley   +1 more source

A Rare Case of Mosaic 3pter and 5pter Deletion‐Duplication with Autism Spectrum Disorder and Dyskinesia

open access: yesCase Reports in Genetics, Volume 2023, Issue 1, 2023., 2023
Introduction. There is evidence that neurodevelopmental disorders are associated with chromosomal abnormalities. Current genetic testing can clinch an exact diagnosis in 20–25% of such cases. Case Description. A 3 years and 11 months old boy with global developmental delay had repetitive behaviors and hyperkinetic movements.
Luna Bajracharya   +10 more
wiley   +1 more source

Causes, temporal trends, and the effects of urbanization on admissions of wild raptors to rehabilitation centers in England and Wales

open access: yesEcology and Evolution, Volume 12, Issue 4, April 2022., 2022
We provide an overview of native raptor admissions to four WRCs in England and Wales. Vehicle collisions and orphaned birds were the most frequently identified causes of admission. Urban areas were positively associated with persecution, building collisions, and unknown trauma, whereas vehicle collisions were associated with more rural areas.
Connor T. Panter   +5 more
wiley   +1 more source

The diet of early birds based on modern and fossil evidence and a new framework for its reconstruction

open access: yesBiological Reviews, Volume 96, Issue 5, Page 2058-2112, October 2021., 2021
ABSTRACT Birds are some of the most diverse organisms on Earth, with species inhabiting a wide variety of niches across every major biome. As such, birds are vital to our understanding of modern ecosystems. Unfortunately, our understanding of the evolutionary history of modern ecosystems is hampered by knowledge gaps in the origin of modern bird ...
Case Vincent Miller, Michael Pittman
wiley   +1 more source

FRANTIŠEK KUPKA’S CONCEPT OF ABSTRACT PAINTING: ON MUSICAL ANALOGIES IN THE ART OF THE FIRST THIRD OF THE 20TH CENTURY

open access: yesАрхитектон, 2022
The article considers the creativity of the abstractionist artist František Kupka (1871-1957) in the context of synthesis of visual and musical aspects.
Shusharichev Lev K.
doaj   +1 more source

Semantics of the Mauling Scene of an Ungulate by a Feline Predator and a Griffin in the Eastern European Scythian Animal Style

open access: yesАрхеология евразийских степей, 2023
The authors consider the content of the motif of mauling of an ungulate by a feline predator and a griffin and the form of its realization in the Scythian animal style of the Eastern European area.
Liubomyr S. Dobrovolskiy   +1 more
doaj   +1 more source

RAYONISM IN EARLY MODERN ART – A FLEETING RAY OF LIGHT

open access: yesİmgelem, 2021
Current research paper explores the fleeting Russian avant-garde artistic movement of the first half of the 20th century known as Rayonism (Rayism or Luchizm). Comparative formalist and conceptual analyses with its contemporary movements and predecessors
Mikail Puşkin
doaj   +1 more source

Орфизм в «Мусагете»

open access: yesRevue des études slaves, 2018
Orphism was highly popular both among the artists and scholars at the turn of the nineteenth century. Recent research on the history of scholarhip on orphism has demonstrated that in the case of historians and philologists this popularity owed much to ...
Илона Светликова
doaj   +1 more source

Investigating the Emergence of Bright Circles in "Orphism" Based on the Evolution of the Color Element and Geometric Shapes [PDF]

open access: yesپیکره
Introduction: «Orphism» is one of the most important artistic movements in world art history, and its bright colors and circular shape are among its most essential features. This movement is a branch of «Cubism» style.
Amir Shabanipour Fomani   +1 more
doaj   +1 more source

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