Results 91 to 100 of about 151,167 (221)

Tracking a killer shrimp: Dikerogammarus villosus invasion dynamics across Europe

open access: yesDiversity and Distributions, Volume 29, Issue 1, Page 157-172, January 2023., 2023
Abstract Aim Invasive alien species are a growing problem worldwide due to their ecological, economic and human health impacts. The “killer shrimp” Dikerogammarus villosus is a notorious invasive alien amphipod from the Ponto‐Caspian region that has invaded many fresh and brackish waters across Europe.
Ismael Soto   +31 more
wiley   +1 more source

Blue straggler stars in galactic open clusters

open access: yes, 2021
Blue straggler stars (BSS) were originally identified in the color-magnitude diagram (CMD) of the globular cluster M3, where they defined an extension of the cluster main sequence, blueward and above the turnoff (TO). Among the variety of objects that populate stellar clusters, BSS are surely between those still presenting many puzzles to astronomers ...
openaire   +2 more sources

An Omnidirectional, High Power Density Magneto–Mechano–Electric Energy Harvester Using PNN–PZT Piezoceramic Operating in Decoupling Bending Mode

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Decoupling bending modes in magneto–mechano–electric energy harvesters, featuring two bending modes responding to different excitations with identical resonant frequencies, enables effective harvesting stray magnetic field energy in diverse environments.
Wei Peng   +7 more
wiley   +1 more source

The Evolution of Blue Stragglers Formed Via Stellar Collisions [PDF]

open access: yes, 1998
We have used the results of recent smoothed particle hydrodynamic simulations of colliding stars to create models appropriate for input into a stellar evolution code. In evolving these models, we find that little or no surface convection occurs, precluding angular momentum loss via a magnetically-driven stellar wind as a viable mechanism for slowing ...
arxiv   +1 more source

Hardware‐Software Codesign of 2D Neuromorphic Optoelectronic Device for Dynamic Gesture Recognition

open access: yesAdvanced Intelligent Systems, EarlyView.
Dynamic gesture recognition based on an in‐sensor reservoir and its synaptic behaviors. Dynamic image recognition with in‐sensor function is achieved, leveraging the capabilities of in‐sensor reservoir computing. Such a computing architecture integrates the sensory capabilities of the retina with the computational advantages of the brain, forming an ...
Jiarui Wang   +5 more
wiley   +1 more source

A regime shift in the Southeast Greenland marine ecosystem

open access: yesGlobal Change Biology, Volume 29, Issue 3, Page 668-685, February 2023., 2023
The amount of drift‐ice along East Greenland has decreased significantly over the past two decades, and the summer sea ice has virtually disappeared since 2003 leading to a regime shift in oceanographic and ecological conditions in the region. The lack of pack ice in summer together with a warming ocean generated cascading effects on the ecosystem in ...
Mads Peter Heide‐Jørgensen   +9 more
wiley   +1 more source

The Power of High-precision Broadband Photometry: Tracing the Milky Way Density Profile with Blue Horizontal Branch Stars in the Dark Energy Survey

open access: yesThe Astrophysical Journal
Blue horizontal branch stars (BHBs), excellent distant tracers for probing the Milky Way’s halo density profile, are distinguished in the ${\left(g-r\right)}_{0}$ versus ( i − z ) _0 color space from another class of stars, blue straggler stars.
Fengqing Yu   +11 more
doaj   +1 more source

Binaries and blue straggler stars in globular clusters

open access: yes, 2022
Invited talk at the "The Impact of Binaries on Stellar Evolution" MIAPbP Topical Workshop 14-18 November 2022, Garching (Germany)
openaire   +2 more sources

Microbial methods matter: Identifying discrepancies between microbiome denoising pipelines using a leaf biofilm taphonomic dataset

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise The occurrence of different microorganisms on aquatic macrophyte fossils suggests that biofilm microbes may facilitate leaf preservation. Understanding the impact of microorganisms on leaf preservation requires studies on living plants coupled with microbial amplicon sequencing.
Brianne Palmer   +3 more
wiley   +1 more source

Detection of white dwarf companions to blue stragglers in the open cluster NGC 188: direct evidence for recent mass transfer [PDF]

open access: yes, 2014
Several possible formation pathways for blue straggler stars have been developed recently, but no one pathway has yet been observationally confirmed for a specific blue straggler. Here we report the first findings from a Hubble Space Telescope ACS/SBC far-UV photometric program to search for white dwarf companions to blue straggler stars. We find three
arxiv   +1 more source

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