Results 31 to 40 of about 553 (183)

Talin1 Adhesion Morphology and Colocalization With Tensin3 Are Largely Unaffected by Polyacrylamide Substrate Stiffness

open access: yesCytoskeleton, EarlyView.
ABSTRACT Cells sense the stiffness of their extracellular matrix (ECM) and adapt their behavior accordingly. We investigated how ECM stiffness affects the spatial organization of talin1, a key mechanosensitive focal adhesion protein. Using polyacrylamide (PA) hydrogels with tunable stiffnesses (0.2–188 kPa), we analyzed cell morphology, migration ...
Joanna Hajduk   +5 more
wiley   +1 more source

Do LINER 2 galaxies harbour low-luminosity active galactic nuclei? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2001
We use ROSAT HRI spatial data and ASCA spectral measurements for a sample of seven nearby, early type spiral galaxies, to address the question of whether a low-luminosity Active Galactic Nucleus (LLAGN) is present in galaxies that have a LINER 2 classification.
Roberts, TP, Schurch, NJ, Warwick, RS
openaire   +3 more sources

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

open access: yesJournal of Field Robotics, Volume 43, Issue 7, Page 4475-4514, October 2026.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang   +3 more
wiley   +1 more source

Origin of Radio Emission from Nearby Low‐Luminosity Active Galactic Nuclei [PDF]

open access: yesThe Astrophysical Journal, 2005
25 pages, some references were added, accepted for publication in ...
Wu, Qingwen, Cao, Xinwu
openaire   +2 more sources

Apatite as a Proxy for Reconstructing Magma Mixing Histories in Granitoids

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Apatite is a common accessory mineral in granites and mafic microgranular enclaves (MMEs), and its textural and compositional characteristics can record dynamic magmatic evolution processes. Apatites from the Early Cretaceous Sanguliu granite and its MMEs in the Liaodong Peninsula exhibit pronounced compositional heterogeneities. In this study,
Xiaowen Lin, Jiahao Zheng, Wanyi Feng
wiley   +1 more source

Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign

open access: yesThe Astrophysical Journal Letters, 2021
In 2017, the Event Horizon Telescope (EHT) Collaboration succeeded in capturing the first direct image of the center of the M87 galaxy. The asymmetric ring morphology and size are consistent with theoretical expectations for a weakly accreting ...
The EHT MWL Science Working Group   +745 more
doaj   +1 more source

On the Nature of Low‐Luminosity Narrow‐Line Active Galactic Nuclei [PDF]

open access: yesThe Astrophysical Journal, 2003
There is clear observational evidence that some narrow-line (type 2) active galactic nuclei (AGNs) have a hidden broad-line region (BLR) and are thus intrinsically broad-line (type 1) AGNs. Does this AGN unification apply for all type 2 AGNs? Indirect arguments suggest that some "true" type 2 AGNs, i.e., AGNs having no obscured BLR, do exist, but it is
openaire   +1 more source

A low‐cost, portable polarizing digital light microscope for monitoring crystal growth and for crystal harvesting

open access: yesJournal of Applied Crystallography, Volume 59, Issue 5, Page 1693-1706, October 2026.
A low‐cost, portable, medium‐resolution polarizing digital light microscope device for monitoring crystal growth and for crystal harvesting is described. The device can be used with a cell phone or a personal computer for real‐time imaging by professional and amateur scientists alike.Motivated by the need for a convenient way to demonstrate the growth ...
Sarah Kennedy   +7 more
wiley   +1 more source

Surprisingly Strong K-band Emission Found in Low-luminosity Active Galactic Nuclei [PDF]

open access: yesThe Astrophysical Journal, 2019
Abstract We examine the near-infrared (NIR) emission from low-luminosity active galactic nuclei (LLAGNs). Our galaxy sample includes 15 objects with detected 2–10 keV X-ray emission, dynamical black hole mass estimates from the literature, and available Gemini/NIFS integral field spectroscopy data.
Antoine Dumont   +5 more
openaire   +3 more sources

Revealing the Accretion Flow in M87*: Insights from Faraday Rotation

open access: yesThe Astrophysical Journal
The Faraday rotation measure (RM) is a commonly used tool to trace electron number density and magnetic fields in hot accretion flows, particularly in low-luminosity accreting supermassive black holes.
Constanza Echiburú-Trujillo   +1 more
doaj   +1 more source

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