Results 81 to 90 of about 21,556 (239)
British Educational Research Journal, EarlyView.Abstract Quality in early childhood education and care (ECEC) is a contested concept and has generally been conceptualised by inter‐related indicators such as staff qualifications, educational environment, policy or child‐to‐staff ratios. There has been a more limited emphasis on how young children might perceive and experience quality.
Nikki Fairchild, Éva Mikuska
wiley +1 more source
Beam wander analysis for focused partially coherent beams propagating in turbulence [PDF]
Optical Engineering, 2012 We extend the theory of beam wander for propagation through atmospheric turbulence to the case of a focused partially coherent beam (PCB). In addition to investigating the beam wander expression, we restate expressions for the beam size, long- and short-time average beam intensity profile, and the on-axis scintillation index of tracked and untracked ...
openaire +1 more source
The spread of non‐native species
Biological Reviews, EarlyView.ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock +16 more
wiley +1 more source
Microoptomechanical pumps assembled and driven by holographic optical vortex arrays
, 2004 Beams of light with helical wavefronts can be focused into ring-like optical traps known as optical vortices. The orbital angular momentum carried by photons in helical modes can be transferred to trapped mesoscopic objects and thereby coupled to a ...
Allen +20 more
core +1 more source
The impacts of biological invasions
Biological Reviews, EarlyView.ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock +42 more
wiley +1 more source
From the Field to the Laboratory: The Theory‐Practice Research of Peter J. Carnevale
Negotiation and Conflict Management Research, EarlyView., 2020 Abstract As colleagues and collaborators, we reflect on the work and legacy of Peter Carnevale, currently professor at the University of Southern California, and recipient of the 2002 Jeffrey Z. Rubin Theory‐to‐Practice Award of the International Association for Conflict Management (IACM). We review Carnevale’s main contributions, including his work on
Linda L. Putnam +3 more
wiley +1 more source
CV-QKD with Gaussian and non-Gaussian Entangled States over Satellite-based Channels
, 2016 In this work we investigate the effectiveness of continuous-variable (CV) entangled states, transferred through high-loss atmospheric channels, as a means of viable quantum key distribution (QKD) between terrestrial stations and low-Earth orbit (LEO ...
Hosseinidehaj, Nedasadat +1 more
core +1 more source
Effect of packing conditions on the acrylamide content in black ripe olives
Journal of the Science of Food and Agriculture, EarlyView.Abstract BACKGROUND Black ripe olives are considered a ‘low‐acid canned food’ and must be sterilized in order to be safe. Acrylamide, a potential carcinogen, is formed in black olives during the thermal treatment. It is known that the formation of acrylamide is dependent on the pH of the olive flesh. The purpose of this study was designed to assess the
Mercedes Brenes‐Álvarez +2 more
wiley +1 more source
IEEE Open Journal of the Communications SocietyFree-space optical (FSO) communication has emerged as a promising solution for high-speed, high-bandwidth wireless transmission, overcoming the spectrum congestion and licensing constraints associated with radio frequency (RF) systems.
Dhruv +3 more
doaj +1 more source