Results 151 to 160 of about 189,294 (310)

Integrating terrestrial and canopy laser scanning for comprehensive analysis of large old trees: Implications for single tree and biodiversity research

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Canopy laser scanning (CLS) enhances 3D measurements of large trees by lifting laser scanners into the canopy. Combining CLS with terrestrial laser scanning improves point cloud precision, reduces occlusion and enables detailed assessments of tree architecture and canopy biodiversity, opening new opportunities for forest ecology.
Barbara D'hont   +12 more
wiley   +1 more source

Mass-feeding of jet-launching white dwarfs in grazing and common envelope evolution

open access: yesThe Open Journal of Astrophysics
I propose a scenario that allows white dwarfs (WDs) to launch relatively powerful jets when they enter a common envelope evolution (CEE) or experience a grazing envelope evolution (GEE) with a red giant branch star (RGB) or an asymptotic giant branch ...
Noam Soker
doaj   +1 more source

Lithium abundance in lower red giant branch stars of Omega Centauri [PDF]

open access: bronze, 2018
A. Mucciarelli   +5 more
openalex   +1 more source

From Membrane Composition to Antimicrobial Strategies: Experimental and Computational Approaches to AMP Design and Selectivity

open access: yesSmall, EarlyView.
Antimicrobial peptides (AMPs) are promising candidates for next‐generation antibiotics, acting through mechanisms such as membrane disruption and intracellular targeting. This review examines how variations in bacterial membrane composition critically influence AMP activity.
Paolo Rossetti   +5 more
wiley   +1 more source

Finding the unusual red giant remnants of cataclysmic variable mergers

open access: yesThe Open Journal of Astrophysics
Mergers between helium white dwarfs and main-sequence stars are likely common, producing red giant-like remnants making up roughly a few percent of all low-mass ($\lesssim2M_\odot$) red giants.
Nicholas Z. Rui, Jim Fuller
doaj   +1 more source

Measuring the core rotation of red giant stars

open access: yes, 2016
Red giant stars present mixed modes, which behave as pressure modes in the convective envelope and as gravity modes in the radiative interior. This mixed character allows to probe the physical conditions in their core.
Gehan, Charlotte   +2 more
core  

Topotactic Phase Transition in Epitaxial La0.7Sr0.3MnO3‐δ Films Induced by Oxygen Getter Assisted Thermal Annealing

open access: yesSmall, EarlyView.
The perovskite to brownmillerite topotactic phase transition in La0.7Sr0.3MnO3‐δ thin films is achieved through a simple and efficient thermal vacuum annealing that employs bulk aluminum as an active oxygen getter. STEM reveals surface segregation and cation redistribution, while EELS identifies distinct manganese oxidation states across different ...
Chenyang Yin   +14 more
wiley   +1 more source

Asteroseismology with TESS: Emergence of Dipole Mode Suppression from Subgiants?

open access: yesThe Astrophysical Journal
Dipole mode suppression is an observed behavior of solar-like oscillations in evolved stars. This study aims to search for depressed dipole modes in giant stars using data from the Transiting Exoplanet Survey Satellite (TESS) and investigate when the ...
Shurui Lin   +3 more
doaj   +1 more source

Robotic Cell Micromanipulation Skill Learning via Imitation‐Enhanced Reinforcement Learning

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Humans can learn complex and dexterous manipulation tasks by observing videos, imitating and exploring. Multiple end‐effectors manipulation of free micron‐sized deformable cells is one of the challenging tasks in robotic micromanipulation. We propose an imitation‐enhanced reinforcement learning method inspired by the human learning process ...
Youchao Zhang   +6 more
wiley   +1 more source

Winston Churchill and France: A Certain Ideal

open access: yesHistory, EarlyView.
Abstract This article examines relations between Winston Churchill and France. It argues that Churchill was sympathetic to France and, in particular, unusual among Englishmen of his generation in being sympathetic to its political system, but also that this sympathy did not make Churchill consistent in his relations with France.
Richard Vinen
wiley   +1 more source

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