Results 71 to 80 of about 3,059 (189)
Laser &Photonics Reviews, EarlyView.A phase‐change magneto‐optical metagrating combines GST switching with InAs guided‐mode resonances to achieve strong nonreciprocal absorption contrast near normal incidence. A static magnetic bias creates direction‐dependent resonant splitting, while GST crystallization quenches and latches the response.
Ye Ming Qing +5 more
wiley +1 more source
Color Symmetry Breaking in a Nonlinear Optical Microresonator
Laser &Photonics Reviews, EarlyView.A two‐color pump drives an integrated microring resonator into spontaneous color symmetry breaking mediated by the nonlinear Kerr effect. Above threshold, one optical color becomes spontaneously dominant while the other is submissive, with the selected output state emerging randomly. These results establish a new form of symmetry breaking in integrated
Luca O. Trinchão +10 more
wiley +1 more source
Bifurcation phenomena in magnetically confined toroidal plasmas
Advances in Physics: X, 2020 Bifurcation phenomena observed in turbulence and transport, in topology of magnetic field and MHD, and the interplay between turbulence and MHD bifurcation in magnetically confined toroidal plasmas are reviewed.
K. Ida
doaj +1 more source
A tipping point for tipping points
Oikos, EarlyView.Tipping points (TPs) – often understood as abrupt changes to a system – have become a popular framework for ecology and environmental science across spatial and temporal scales. The underlying, quantitative foundation of TP theory is built on mathematical models from catastrophe and predator–prey theories.
David G. Jenkins +1 more
wiley +1 more source
Zeitschrift für anorganische und allgemeine Chemie, EarlyView.The RE4Al13Pt9 series has been extended to RE = Y, La‐Nd, Sm, Gd‐Dy. The compounds have been investigated by X‐ray diffraction and magnetic susceptibility measurements. Of the RE4Al13Pt9 series, the RE = Ce, Pr, and Eu representatives were previously reported. In this work we extend the series to RE = Y, La‐Nd, Sm, Gd‐Dy.
Stefan Engel +3 more
wiley +1 more source
Shaping Future Children, Sex Selection, and “Normal” Human Capacities
Bioethics, EarlyView.ABSTRACT If we think that parents have an obligation to have a healthy child then we need to know what counts as healthy, when male and female children are born with very different capacities. If we give up on the idea that our obligations to use technologies of genetic selection are discharged once we try to secure the birth of a healthy child, as ...
Robert Sparrow
wiley +1 more source
Cryo‐EM structures of multiple‐peptide resistance factor (MprF) from Pseudomonas aeruginosa
The FEBS Journal, EarlyView.Cryo‐EM analysis of MprF from Pseudomonas aeruginosa reveals a dimeric enzyme, distinct from Rhizobium homologues. The soluble GNAT domain contains a dynamic amphipathic helix (TTH) that adopts different positions in detergent micelle and nanodisc, relative to the membrane.
Shaileshanand Jha, Kutti R. Vinothkumar
wiley +1 more source
Discrete Dynamics in Nature and Society, 2016 The Allee effect is incorporated into a predator-prey model with linear functional response. Compared with the predator-prey which only takes the crowding effect and predator partially dependent on prey into consideration, it is found that the Allee ...
Jie Yan +3 more
doaj +1 more source
The Generics Revolution and the New Economic Geography of the Global Pesticide Industry
Journal of Agrarian Change, EarlyView.ABSTRACT The global pesticide industry transformed from one dominated by patented products and legacy multinationals with strong manufacturing bases in the United States and EU to one dominated by generic products produced in India and China. We use proprietary market research data, data from regulatory filings, industry press and bilateral trade data ...
Christian Berndt +4 more
wiley +1 more source
Sedimentology, EarlyView.ABSTRACT Filamentous, anastomosing spar‐filled networks in Phanerozoic carbonates have been interpreted as the mineralised remains of keratose (non‐spiculate) sponges, yet their recognition remains contested because fabrics of broadly similar appearance may arise from microbial, diagenetic or physical processes. This study combines direct fossil–modern
Jeong‐Hyun Lee +2 more
wiley +1 more source