Results 91 to 100 of about 10,379 (248)

Ratcheting and tumbling motion of Vibrots

New Journal of Physics, 2016
Systems of granular rotors (Vibrots), that is, small devices that convert linear vibrational motion into rotation by frictional impact, are of scientific interest since they could reveal various types of collective behavior. Looking at an isolated Vibrot,
Christian Scholz, Sean D’Silva, Thorsten Pöschel   +2 more
doaj   +1 more source

Constant Proportion Portfolio Insurance Strategies under Cumulative Prospect Theory with Reference Point Adaptation [PDF]

, 2012
Constant Proportion Portfolio Insurance (CPPI) is a significant and highly popular investment strategy within the structured product market. This has led to recent work which attempts to explain the popularity of CPPI by showing that it is compatible ...
Constantinou, Nick, Khuman, Anil, Phelps, Steve   +2 more
core  

What Do Lithics Tell Us About Cultural Evolution? Insights From the Central African Record

Archaeometry, EarlyView.
ABSTRACT While Western historical narratives often incorporate a biased vision of human evolution—driven by a progressive view tied to a progressively evolving state of culture—this paper proposes combining archaeological lithic data with epistemological reflections to critique the modern regime of historicity, where progress is assumed as rational ...
Isis Isabella Mesfin
wiley   +1 more source

Low cycle fatigue behavior and deformation mechanism of Ti–6Al–4V-0.55Fe alloy under the control of strain and stress amplitudes

Journal of Materials Research and Technology
The present study focuses on investigating the low cycle fatigue (LCF) behavior and cyclic deformation mechanism of Ti–6Al–4V-0.55Fe alloy under strain and stress control.
Yangyang Sun, Feng Chen, Shenwei Qian, Hui Chang, Wenshu Zhang, Liang Feng, Lian Zhou   +6 more
doaj   +1 more source

The first case of Reel Syndrome in a dog after pacemaker implantation: A case report

Australian Veterinary Journal, EarlyView.
Reel Syndrome is a rare complication of permanent pacemaker implantation, characterised by the rotation of the device around its transverse axis, which causes the lead to coil around the generator and displacement, leading to pacing dysfunction. This report presents the first documented case of Reel Syndrome in a dog.
Z Wojtczak, M Lewicki, M Płóciennik, J Gach, K Nowak, A Noszczyk‐Nowak   +5 more
wiley   +1 more source

Shuttling heat across 1D homogenous nonlinear lattices with a Brownian heat motor [PDF]

, 2009
We investigate directed thermal heat flux across 1D homogenous nonlinear lattices when no net thermal bias is present on average. A nonlinear lattice of Fermi-Pasta-Ulam-type or Lennard-Jones-type system is connected at both ends to thermal baths which ...
Baowen Li, Fei Zhan, L. Wang, Nianbei Li, Peter Hänggi   +4 more
core   +3 more sources

Scientists’ warning on the global destruction of rock outcrop ecosystems

Conservation Biology, EarlyView.
Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula, Lucas N. Perillo, Gianluigi Ottaviani, Flávio F. Carmo, Mandar N. Datar, Katherine C. Enebeli‐Ekwutoziam, Bruno Fogliani, Stephen D. Hopper, Aboli Kulkarni, Hans Lambers, Rafael F. Magalhães, Frederico S. Neves, Jean‐François Ponge, Stefan Porembski, Bruno H. P. Rosado, Fernando M. G. Santos, Elycée Tindano, Bram Vanschoenwinkel, Aparna Watve, Fernando A. O. Silveira   +19 more
wiley   +1 more source

Parasports for cerebral palsy: Thinking and ‘prescribing’ beyond the Paralympics

Developmental Medicine &Child Neurology, EarlyView.
This narrative review synthesizes current evidence on parasport participation for individuals with cerebral palsy, highlighting key benefits, and providing sport‐specific adaptations that enhance accessibility of parasport. Abstract The landscape of care for individuals with cerebral palsy (CP) has evolved far beyond ‘fixing’ impairments toward a life ...
Julia E. Hanes, Joel J. Ewert, Amalie Holmsen‐Wong, Peter Rosenbaum, Ram Mishaal, Dynai Eilig   +5 more
wiley   +1 more source

Beyond Exceptional and Ordinary: Analysing the Effects of Emergency Frames on EU Renewable Energy Policy‐Making

JCMS: Journal of Common Market Studies, EarlyView.
Abstract This study aims to provide a better understanding of how policy‐making changes when an issue is framed as an emergency. Literature on emergency politics provides different views on policy‐making changes resulting from emergency frames, where ordinary and exceptional policy‐making overlap in different ways.
Emma Leenders, Sandrino Smeets, Duncan Liefferink, Ellen Mastenbroek   +3 more
wiley   +1 more source

Marginal gap of printed, milled, and heat‐pressed two‐piece polyetheretherketone abutments before and after thermal cycling, and their pull‐off bond strength after thermal cycling

Journal of Prosthodontics, EarlyView.
Abstract Purpose To evaluate the marginal gap of two‐piece polyetheretherketone (PEEK) abutments fabricated with different methods, before and after thermal cycling, while also focusing on their pull‐off bond strength. Materials and Methods A two‐piece abutment was virtually designed after digitizing a titanium‐base (Ti‐base) abutment.
Almira Ada Diken Türksayar, Burcu Kanpalta, Naime Bilinç Bulucu, Sandra Schulnig, Sebastian Spintzyk, Münir Demirel, Mustafa Borga Donmez   +6 more
wiley   +1 more source