Results 81 to 90 of about 39,865 (232)

A variational approach to necklaces formation in polyelectrolytes

, 1997
By means of a variational approach we study the conditions under which a polyelectrolyte in a bad solvent will undergo a transition from a rod-like structure to a ``necklace'' structure in which the chain collapses into a series of globules joined by ...
de la Cruz, Monica Olvera, Solis, Francisco J.   +1 more
core   +1 more source

Field enhancement and spectral features of hexagonal necklaces of silver nanoparticles for enhanced nonlinear optical processes.

Optics Express, 2018
The nonlinear properties of hybrid metallic-dielectric systems are attracting great interest due to their potential for the enhancement of frequency conversion processes at nanoscale dimensions.
Alejandro Gómez-Tornero, C. Tserkezis, Javier Robledo Moreno, L. Bausá, M. Ramírez   +4 more
semanticscholar   +1 more source

Connecting tradition and technology: The digitization of the ethnobotanical collection at the Rio de Janeiro Botanical Garden

PLANTS, PEOPLE, PLANET, EarlyView.
The digitization of RBetno (JBRJ) represents a step forward for biodiversity conservation in Brazil. Aligned with the Kunming‐Montreal Global Biodiversity Framework (Target 2, 2020–2030), this project documents the use of plants, including traditional knowledge and vernacular names, with a focus on the Atlantic Forest and Amazon.
Viviane S. Fonseca‐Kruel, Carlos E. A. Coimbra Jr., Luis Alexandre Estevão da Silva, Felipe Alves Oliveira, Maria Paula Vasconcelos Mesquita, Mariana Taniguchi, Rafaela Campostrini Forzza   +6 more
wiley   +1 more source

Suppression of the superfluid Kelvin-Helmholtz instability due to massive vortex cores, friction and confinement

SciPost Physics
We characterize the dynamical instability responsible for the breakdown of regular rows and necklaces of quantized vortices that appear at the interface between two superfluids in relative motion.
Matteo Caldara, Andrea Richaud, Massimo Capone, Pietro Massignan
doaj   +1 more source

Prussian Blue Analogues for Non‐Aqueous Sodium‐Ion and Potassium‐Ion Batteries: The Landscape From Lab‐Scale Optimizations Toward Practical Applications

Small, EarlyView.
Prussian blue analogues (PBAs) are scalable cathode materials for non‐aqueous sodium‐ (SIBs) and potassium‐ion batteries (PIBs). This review links crystal chemistry, defect control, and particle engineering with electrochemical performance, highlighting how synthesis, crystal water, and interfacial stability jointly determine practical energy density ...
Yingkangzi Mei, Charlie A. F. Nason, Yang Xu   +2 more
wiley   +1 more source

The Biased Interaction Game: A System Theoretic Approach to the Emergence of Inequality, Hierarchy, and the Implications for the Likelihood of Cooperation

Systems Research and Behavioral Science, EarlyView.
ABSTRACT The emergence of cooperation in natural selection has been successfully studied using game theory and, despite the underlying selfish nature of the evolutionary process, a spectrum of plausible mechanisms have been proposed to determine the conditions under which cooperative behaviour is likely to occur.
Phil Mercy, Martin Neil
wiley   +1 more source

Dusky grouse seasonal resource selection in the Great Basin isolated mountain ranges of Nevada, USA

Wildlife Biology, EarlyView.
Dusky grouse Dendragapus obscurus are a montane forest grouse species with a paucity of information regarding their temporal and spatial resource use during critical times of high mortality and reproductive output. This lack of vital data may leave dusky grouse at risk of sub‐optimal management in many areas of their distribution, especially in the ...
Stephanie Landry, Brian Smith, Erica Stuber, Shawn Espinosa, David Dahlgren   +4 more
wiley   +1 more source

TYPES OF HANDMADE DOLLS IN TURKEY [PDF]

Journal of Spatial and Organizational Dynamics, 2018
Handmade dolls, plastic, wood, glass, ceramic, any mineral, soil, plaster, leather, cloth and so on. They are human form toys made of materials. Handmade dolls art is the world’s oldest hand-crafted art that emerged from the assessment of the increased ...
Melda Özdemir
doaj  

Queen Ṭǝru Wärq’s Necklace

Aethiopica, 2012
Miscellaneous Article The article, which traces the Ethiopian history of beads and necklaces, focuses on an unpublished necklace which belonged to Emperor Tewodros’s consort Queen Ṭǝru Wärq. Acquired by Robert Napier, apparently after her death in 1868,
Richard Pankhurst
doaj   +1 more source

Enumeration of three term arithmetic progressions in fixed density sets [PDF]

, 2014
Additive combinatorics is built around the famous theorem by Szemer\'edi which asserts existence of arithmetic progressions of any length among the integers. There exist several different proofs of the theorem based on very different techniques.
Sjöland, Erik
core