Results 51 to 60 of about 33,095 (204)

LkH$\alpha$ 330: Evidence for dust clearing through resolved submillimeter imaging [PDF]

, 2008
Mid-infrared spectrophotometric observations have revealed a small sub-class of circumstellar disks with spectral energy distributions (SEDs) suggestive of large inner gaps with low dust content.
Andrews, Andrews, Brown, Brown, C. P. Dullemond, C. Qi, Calvet, Chiang, D. J. Wilner, Dunkin, Eisner, Espaillat, Fernandez, Forrest, G. A. Blake, Grady, Grady, Hughes, Hughes, Ireland, J. M. Brown, J. P. Williams, Jensen, Pontoppidan, Prato, Rieke, Salyk, Sault, Tanaka, Varnière   +29 more
core   +3 more sources

Preliminary Study of a Ninj1‐Loaded Bimodal Ultrasound/NIR Fluorescence Targeted Molecular Probe for Diagnosing Early‐Stage Inflammation in Coronary Microvascular Dysfunction

Advanced Healthcare Materials, EarlyView.
Coronary microvascular dysfunction (CMD) targeting remains a challenge for precise diagnosis. This work presents a dual‐modal nanoprobe (T‐IR780‐NBs) that combines ultrasound contrast with near‐infrared fluorescence. This technology utilizes proteomics‐derived antibodies that specifically localize to inflamed and injured cardiac tissue, enabling ...
Xiaohui Xu, Lina Guan, Baihetiya Tayier, Chen Yuan, Shangke Chen, Qi Shi, Yuming Mu   +6 more
wiley   +1 more source

Stellar Fluxes as Probes of Convection in Stellar Atmospheres [PDF]

, 2006
Convection and turbulence in stellar atmospheres have a significant effect on the emergent flux from late-type stars. The theoretical advancements in convection modelling over recent years have proved challenging for the observers to obtain measurements ...
Adelman, Barry Smalley, Gardiner, Heiter, Kurucz, Smalley, Smalley, Smalley, Smalley, Smalley, van't Veer   +10 more
core   +2 more sources

Nb2C‐Reinforced Hydrogel Microneedle as Dual ROS‐Scavenging Platform to Promote Diabetic Wound Healing

Advanced Healthcare Materials, EarlyView.
An advanced microneedle patch integrating niobium carbide nanosheets and curcumin is engineered for diabetic wound healing. The system enables dual ROS scavenging and NIR‐enhanced antimicrobial activity, effectively rebalancing the oxidative microenvironment, promoting macrophage repolarization and angiogenesis, and accelerating full‐thickness wound ...
Zhi Zheng, Heyan Huang, Xiangru Chen, Jie Fu, Zhiwei Sun, Mengjuan Tao, Jianwei Mao, Fei Zhang, Zhou Wan, Yuan Li, Dingan Wu, Chuchao Zhou, Yanqing Yang   +12 more
wiley   +1 more source

A Widely-Separated, Highly-Occluded Companion to the Nearby Low-Mass T Tauri Star TWA 30 [PDF]

, 2010
We report the discovery of TWA 30B, a wide (~3400 AU), co-moving M dwarf companion to the nearby (~42 pc) young star TWA 30. Companionship is confirmed from their statistically consistent proper motions and radial velocities, as well as a chance ...
Adam J. Burgasser, Andrew A. West, Baraffe, Bildsten, Bochanski, Carpenter, Cutri, Dagny L. Looper, D’Alessio, Epchtein, Ercolano, Eric E. Mamajek, Faherty, Faherty, Finch, Gizis, Herczeg, Hippelein, Høg, Jacqueline K. Faherty, John J. Bochanski, Kirkpatrick, Liu, Looper, Looper, Luhman, Luhman, Mamajek, Mamajek, Mark A. Pitts, Mohanty, Mohanty, Mohanty, Monet, Monet, Muzerolle, Oliversen, Raga, Rayner, Skrutskie, Soderblom, Song, Song, Subhanjoy Mohanty, Tachihara, Terquem, Tody, Webb, West, West, White, White, Zuckerman, Zuckerman   +53 more
core   +3 more sources

Autonomous Hydrogel Actuators Programmed by Endogenous Biochemical Logic for Dual‐Stage Morphing and Drug Release

Advanced Materials, EarlyView.
A 3D‐printed BSA–PEGDA bilayer actuator performs biochemical logic, bending autonomously in acid and releasing its drug payload only when both acid and pepsin are present. This dual‐stage, enzyme‐gated mechanism enables autonomous catch‐and‐release motion and controlled gastric drug delivery, representing a programmable soft material powered by ...
Yuchen Liu, Harischandra Potthuri, Alejandro Sosnik, Luai R. Khoury   +3 more
wiley   +1 more source

An Atlas of Spectrophotometric Landolt Standard Stars

, 2005
We present CCD observations of 102 Landolt standard stars obtained with the R-C spectrograph on the CTIO 1.5 m telescope. Using stellar atmosphere models we have extended the flux points to our six spectrophotometric secondary standards, in both the blue
A. M. Soderberg, Bessell M. S., Lisa Germany, Mario Hamuy, Maximilian Stritzinger, Menzies J. W., Nicholas B. Suntzeff, Peter Challis, Ricardo Demarco   +8 more
core   +3 more sources

A spectroscopic examination of accretion diagnostics for near solar mass stars in IC 348 [PDF]

, 2008
High-resolution optical and moderate-resolution near-infrared spectra were obtained for 40 near solar mass (~2.0-0.5 M⊙) members of the 2-3 Myr old cluster IC 348 in order to examine established accretion diagnostics and the coupling between inner disk ...
Dahm, S. E.
core   +1 more source

Tunable Plasmonic Response of Silver Nanoparticles Entangled in Detonation Nanodiamond Network via Colloidal Self‐Assembly

Advanced Materials Interfaces, EarlyView.
Detonation nanodiamonds form a network that entangles silver nanoparticles into stable nanocomplexes. The structure can fine‐tune and enhance plasmonic absorption through nearfield electromagnetic interactions but prevents silver particle aggregation. The study shows how the arrangement and concentration of particles affect light absorption, offering a
Vendula Hrnčířová, Markéta Šlapal Bařinková, Muhammad Qamar, Kateřina Kolářová, Bohuslav Rezek   +4 more
wiley   +1 more source

Two-micron spectrophotometry of the galaxy NGC 253 [PDF]

, 1979
A very strong Brackett-gamma hydrogen emission line, and the 2.3 micron CO stellar absorption feature were measured in NGC 253. The presence and strength of the CO feature indicates that late type giant stars produce most of the 2.2 micron continuum ...
Becklin, E. E., Matthews, K., Neugebauer, G., Wynn-Williams, C. G.   +3 more
core   +1 more source