Results 41 to 50 of about 210,786 (294)

HERSCHEL’S “COLD DEBRIS DISKS”: BACKGROUND GALAXIES OR QUIESCENT RIMS OF PLANETARY SYSTEMS? [PDF]

open access: yes, 2013
Infrared excesses associated with debris disk host stars detected so far, peak at wavelengths around ~100 μm or shorter. However, six out of 31 excess sources studied in the Herschl ͣ Open Time Key Programme, DUNES, have been seen to show significant ...
Carlos del Burgo Díaz
core  

Molecular gas in young debris disks

open access: yes, 2016
Debris disks are generally thought to be the gas poor descendants of protoplanetary disks. While this characteristic may be true for most debris systems, recent surveys in rotational transitions of carbon monoxide led to a growing sample of debris disks ...
Moór, Attila (5266990), Moór, Attila
core   +1 more source

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

open access: yesAdvanced Functional Materials, EarlyView.
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash   +4 more
wiley   +1 more source

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)

open access: yesAstronomy & Astrophysics
Context. Debris disks – collisionally sustained belts of dust and sometimes gas around main sequence stars – are remnants of planet formation processes and are found in systems ≳10 Myr old.
Zawadzki B.   +39 more
doaj   +3 more sources

The Disks In Scorpius–Centaurus Survey (DISCS). I. Four Newly Resolved Debris Disks in Polarized Intensity Light

open access: yesThe Astronomical Journal
The presence of infrared excesses around stars directly correlates with spatially resolved imaging detections of circumstellar disks at both millimeter and optical/near-infrared wavelengths.
Justin Hom   +10 more
doaj   +1 more source

Directly Imaging Circumstellar Debris Disks

open access: yes, 2021
: Debris disks are a collection of dust grains and planetesimals around a star and are thought to contain the remnants of planet formation. Directly imaging debris disks and studying their morphologies is valuable for studying the planet formation ...

core  

Heating and cooling processes in disks [PDF]

open access: yes, 2015
The research leading to these results has received funding from the European Union Seventh Framework Programme FP7-2011 under grant agreement no 284405.
Peter Woitke   +2 more
core   +1 more source

An Integrated Oxygen‐Supplying Device and Predictive Multiphysics Model for Extended Ambient Transport of Insulin‐Producing Cells

open access: yesAdvanced Functional Materials, EarlyView.
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez   +9 more
wiley   +1 more source

JWST/NIRCam Detection of the Fomalhaut C Debris Disk in Scattered Light

open access: yesThe Astrophysical Journal Letters
Observations of debris disks offer important insights into the formation and evolution of planetary systems. Though M dwarfs make up approximately 80% of nearby stars, very few M dwarf debris disks have been studied in detail—making it unclear how or if ...
Kellen Lawson   +22 more
doaj   +1 more source

Conjugated Porphyrin Polymer With Superior Charge Transfer for Photodynamic‐Immunomodulatory Prevention of CIED Infection in Diabetes

open access: yesAdvanced Healthcare Materials, EarlyView.
Under NIR irradiation, PTCPP generates ROS to eliminate MRSA biofilms and promote M1 macrophage polarization for phagocytosis. After bacterial clearance, the material is phagocytosed by macrophages, shifting their polarization to M2 phenotype via metabolic reprogramming, which synergistically enhances anti‐infection therapy and wound healing.
Honghao Ma   +13 more
wiley   +1 more source

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