Results 81 to 90 of about 291,896 (358)

Engineering a Human‐Sized Common Bile Duct Prototype with Regenerative Potential: In Vitro Evaluation of Mechanics, Function, Degradation, and Immune Modulation

Advanced Healthcare Materials, EarlyView.
This study presents a multiphasic bile duct construct composed of biocompatible materials and cells, featuring an inner layer that supports biliary epithelium growth, a middle layer providing mechanical strength, and an outer cell‐permissive layer designed to support future in vivo integration.
Mattia Pasqua, Marianna Barbuto, Matteo Calligaris, Roberto Di Gesù, Duilio Pagano, Rosalia Busà, Salvatore Gruttadauria, Simone Dario Scilabra, Antonio D'Amore, Maria Giovanna Francipane   +9 more
wiley   +1 more source

Orbital Elements of Comet C/1490 Y1 and the Quadrantid shower

, 2009
The Quadrantid shower, one of the most intense showers, has been observed at the beginning of January each year. However, the origin of the meteors is still unknown.
Ahn, Babadzhanov, Babadzhanov, Boulet, BouÅ¡ka, Bretagnon, Cullen, Fisher, Groussin, Hasegawa, Hasegawa, Ho, Hong-Jin Yang, Hsieh, Jenniskens, Jenniskens, Jeon, Jones, Kaňuchová, Ki-Won Lee, Kiang, Kronk, Marsden, Marsden, McIntosh, Meeus, Micheli, Myeong-Gu Park, Needham, Needham, Park, Perryman, Rufus, Rufus, Shelton, Stephenson, Williams, Williams, Williams, Williams, Wu, Yang   +41 more
core   +1 more source

Spitzer Space Telescope Observations of the Nucleus of Comet 103P/Hartley 2 [PDF]

, 2009
We have used the Spitzer Space Telescope InfraRed Spectrograph (IRS) 22-μm peakup array to observe thermal emission from the nucleus and trail of comet 103P/Hartley 2, the target of NASA’s Deep Impact Extended Investigation (DIXI). The comet was observed
A'Hearn, M. F., Bauer, J. M., Belton, M. J., Farnham, T. L., Fernandez, Y. R., Groussin, O., Lisse, C. M., Meech, K. J., Reach, W. T., Snodgrass, C. D.   +9 more
core   +2 more sources

High‐resolution digital elevation model from tri‐stereo Pleiades‐1 satellite imagery for lava flow volume estimates at Fogo Volcano

Geophysical Research Letters, 2016
Resolving changes in topography through time using accurate high‐resolution digital elevation models (DEMs) is key to understanding active volcanic processes.
Marco Bagnardi, Pablo J. González, Andrew Hooper   +2 more
doaj   +1 more source

Aggregate dust particles at comet 67P/Churyumov–Gerasimenko [PDF]

Nature, 2016
Comets are thought to preserve almost pristine dust particles, thus providing a unique sample of the properties of the early solar nebula. The microscopic properties of this dust played a key part in particle aggregation during the formation of the Solar
M. Bentley, R. Schmied, T. Mannel, K. Torkar, H. Jeszenszky, J. Romstedt, A. Levasseur-Regourd, I. Weber, E. Jessberger, P. Ehrenfreund, C. Koeberl, O. Havnes   +11 more
semanticscholar   +1 more source

Antitumoral Efficacy of AuNRs‐Laden ECFCs In Vitro and In Vivo: Decoding the Heat and Rays Combo Treatment in Breast Cancer and Melanoma Cells

Advanced Healthcare Materials, EarlyView.
Endothelial Colony Forming Cells (ECFCs) acted as cellular cyborgs, stealthily transporting gold nanorods (AuNRs) into tumors to enable targeted near‐infrared (NIR) hyperthermia combined with radiotherapy. This approach triggers ferroptosis in melanoma and inhibits autophagy in breast cancer, revealing a tumor‐specific response to nanomaterial‐assisted
Cecilia Anceschi, Francesca Scavone, Paolo Armanetti, Luca Menichetti, Claudia Catarinicchia, Claudia Borri, Fulvio Ratto, Filippo Micheletti, Noemi Formica, Jessica Ruzzolini, Elena Frediani, Anastasia Chillà, Francesca Margheri, Mirko Severi, Rita Traversi, Patrizia Nardini, Daniele Guasti, Mario Del Rosso, Tommaso Del Rosso, Lisa Giovanelli, Cinzia Talamonti, Monica Mangoni, Isacco Desideri, Silvia Burchielli, Fabiola Pajar, Gabriella Fibbi, Anna Laurenzana   +26 more
wiley   +1 more source

Observing eruptions of gas-rich compressible magmas from space

Nature Communications, 2016
Satellite observations are an important tool in volcano monitoring, but observations such as ground deformation and gas emissions are treated independently. Here, the authors present a model coupling them through their link to magma volatile contents and
Brendan McCormick Kilbride, Marie Edmonds, Juliet Biggs   +2 more
doaj   +1 more source

The comet assay: ready for 30 more years.

Mutagenesis, 2018
During the last 30 years, the comet assay has become widely used for the measurement of DNA damage and repair in cells and tissues. A landmark achievement was reached in 2016 when the Organization for Economic Co-operation and Development adopted a comet
P. Møller
semanticscholar   +1 more source

From Mechanoelectric Conversion to Tissue Regeneration: Translational Progress in Piezoelectric Materials

Advanced Materials, EarlyView.
This review highlights recent progress in piezoelectric materials for regenerative medicine, emphasizing their ability to convert mechanical stimuli into bioelectric signals that promote tissue repair. Key discussions cover the intrinsic piezoelectric properties of biological tissues, co‐stimulation cellular mechanisms for tissue regeneration, and ...
Xinyu Wang, Sílvio Terra Stefanello, Victor Shahin, Yun Qian   +3 more
wiley   +1 more source

Lighting the Spark: COMET Program Mobilizes the Ranks for Construction Organizing [PDF]

, 1995
This article describes the COMET (Construction Organizing Membership Education Training) program. Faced with declining membership and market share and an erosion of bargaining strength and political influence, building trades unions have undertaken a ...
Grabelsky, Jeffrey
core   +1 more source