Results 71 to 80 of about 25,554 (268)

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

open access: yesDeep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia   +4 more
wiley   +1 more source

Star Formation Histories of Resolved Galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2008
AbstractThe colour-magnitude diagrams of resolved stellar populations are the best tool to study the star formation histories of the host galactic regions. In this review the method to derive star formation histories by means of synthetic colour-magnitude diagrams is briefly outlined, and the results of its application to resolved galaxies of various ...
openaire   +4 more sources

Multiscale stellar associations across the star formation hierarchy in PHANGS-HST nearby galaxies: methodology and properties

open access: yes, 2023
We develop a method to identify and determine the physical properties of stellar associations using Hubble Space Telescope (HST) NUV−U−B−V−I imaging of nearby galaxies from the Physics at High Angular Resolution in Nearby GalaxieS with the Hubble Space ...
Kirsten L. Larson; Janice C. Lee; David A. Thilker; Bradley C. Whitmore; Sinan Deger; James Lilly; Rupali Chandar; Daniel A. Dale; Frank Bigiel; Kathryn Grasha; Brent Groves; Stephen Hannon; Ralf S. Klessen; Kathryn Kreckel; J. M. Diederik Kruijssen; Adam K. Leroy; Hsi-An Pan; Erik Rosolowsky; Eva Schinnerer; Andreas Schruba; Elizabeth J. Watkins; Thomas G. Williams
core   +1 more source

MUC1 as a Survival Effector of Radiotherapy‐Induced Epithelial Hybrid States in Basal‐Like Breast Cancer

open access: yesInternational Journal of Cancer, EarlyView.
Basal‐like breast cancer (BLBC) is aggressive and often exhibits inherent or acquired resistance to radiotherapy (RT), a primary treatment option. RT resistance is underpinned by molecular alterations, many of which are poorly understood. Here, RT‐induced transcriptomic changes were analyzed using bulk and spatial sequencing in a BLBC mouse model and ...
Garyfallia Pantelaiou‐Prokaki   +12 more
wiley   +1 more source

Optical polarimetry studies of Seyfert galaxies [PDF]

open access: yes, 1999
Optical imaging polarimetry has been performed on seven nearby Seyfert galaxies, three with face-on and four with edge-on host galaxies of various morphological classifications.
Felton, Michelle Ann
core  

Attitudes and behaviours of consumers towards plant‐based yoghurt alternatives: a cross‐cultural study

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Increased awareness of sustainable food production and vegan, vegetarian and flexitarian diets are driving the growth in dairy substitutes, particularly plant‐based yoghurts. To understand consumer perception or mind‐set and facilitate adoption of plant‐based yoghurt products, a multi‐phase study using both qualitative and ...
Mitali K Gupta   +6 more
wiley   +1 more source

Lyman break galaxies and the star formation rate of the Universe at z ~ 6 [PDF]

open access: yes, 2003
We determine the space density of UV-luminous starburst galaxies at z≈ 6 using deep HST ACS SDSS-i′ (F775W) and SDSS-z′ (F850LP) and VLT ISAAC J and Ks band imaging of the Chandra Deep Field South.
Stanway, Elizabeth R.   +6 more
core   +1 more source

Germanium‐Based Mid‐Infrared Integrated Photonics

open access: yesLaser &Photonics Reviews, EarlyView.
The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini   +6 more
wiley   +1 more source

Molecular hydrogen in galaxies [PDF]

open access: yes, 1987
This study aims to understand the key role played by molecular hydrogen in the evolution of galaxies, with a view to constraining its radial distribution in the Galaxy and the CO→H(_2) conversion factor α(_20).The star formation rate is shown to be ...
Wilkinson, David Adam, Wilkinson, D.A
core  

PHANGS: constraining star formation time-scales using the spatial correlations of star clusters and giant molecular clouds

open access: yes, 2023
In the hierarchical view of star formation, giant molecular clouds (GMCs) undergo fragmentation to form small-scale structures made up of stars and star clusters.
Turner, Jordan A;Dale, Daniel A;Lilly, James;..., Hsi-An Pan et al.
core   +1 more source

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