Results 81 to 90 of about 1,077,450 (288)

The evolutionary nature of RV Tauri stars in the SMC and LMC

, 2018
Based on their stellar parameters and the presence of a mid-IR excess due to circumstellar dust, RV Tauri stars have been classified as post-AGB stars.
Kamath, Devika, Kolenberg, Katrien, Manick, Rajeev, Sekaran, Sanjay, Van Winckel, Hans   +4 more
core   +1 more source

The average magnetic field draping and consistent plasma properties of the Venus magnetotail [PDF]

, 1986
A new technique has been developed to determine the average structure of the Venus magnetotail (in the range from −8 Rv to −12 Rv) from the Pioneer Venus magnetometer observations.
McComas, David J., Russell, C. T., Saunders, M. A., Spence, Harlan E.   +3 more
core   +2 more sources

Patient‐Derived 3D Bioprinted Cardiac Organoid Constructs Reveal Key Pathological Features of Duchenne Muscular Dystrophy

Advanced Healthcare Materials, EarlyView.
Patient‐derived cardiac organoids reveal key features of Duchenne muscular dystrophy cardiomyopathy, including apoptosis, oxidative stress, calcium handling defects, and mechanical remodeling. By integrating organoids into alginate–gelatin bioprinted constructs, disease phenotypes are organized into scalable 3D cardiac tissues displaying extracellular ...
Vittoria Marini, Margalida Campaner Socias, Andreas Dimopoulos, Lorenza Rinvenuto, Enrico Pozzo, Diana Stalkopf, Angelo Serafini, Sara Morri, Ashley Wang, Rita La Rovere, Yoke Chin Chai, Sveva Bollini, Geert Bultynck, H. Llewelyn Roderick, Ioannis Papantoniou, Maurilio Sampaolesi   +15 more
wiley   +1 more source

The Bizarre Spectral Variability of Central Stars of Planetary Nebulae

, 2007
A radial velocity (RV) survey to detect central stars in binary systems was carried out between 2002 and 2004. De Marco et al. (2004) reported that 10 out of 11 monitored stars exhibited strong RV variability, but periods were not detected.
Bond, Howard E., De Marco, Orsola, Harmer, Dianne, Wortel, S.   +3 more
core  

The Optical -- Mid-infrared Extinction Law of the l=165 Sightline in the Galactic Plane: Diversity of Extinction Law in the Diffuse Interstellar Medium

, 2017
Understanding the effects of dust extinction is important to properly interpret observations. The optical total-to-selective extinction ratio, Rv = Av/E(B-V), is widely used to describe extinction variations in ultraviolet and optical bands. Since the Rv=
Chen, Xiaodian, de Grijs, Richard, Jiang, Biwei, Wang, Shu, Zhao, He   +4 more
core   +2 more sources

A New 3D Colon on a Chip to Decipher the Influence of Mechanical Forces on the Physiological Cellular Ecosystem

Advanced Healthcare Materials, EarlyView.
To dissect how mechanical forces influence intestinal physiology, we developed a stretchable 3D colon‐on‐chip that integrates tunable topography, stiffness and peristalsis‐like motion within a physiologically relevant microenvironment. We showed that stretching is a dominant factor governing epithelial behavior, markedly enhancing proliferation and ...
Moencopi Bernheim‐Dennery, Lauriane Gérémie, Julie Brun, Lucas Chassatte, Giacomo Gropplero, Réda Bouras, Jieun Choo, Bertrand Cinquin, Alba Marcellan, Danijela Matic Vignjevic, Stéphanie Descroix   +10 more
wiley   +1 more source

A Jupiter-mass planet around the K0 giant HD 208897

, 2017
For over 10 years, we have carried out a precise radial velocity (RV) survey to find substellar companions around evolved G,K-type stars to extend our knowledge of planet formation and evolution.
Bikmaev, I., Galeev, A., Irtuganov, E. N., Izumiura, H., Kambe, E., Keskin, V., Melnikov, S. S., Sato, B., Selam, S. O., Yılmaz, M., Zhuchkov, R. Ya., Özavcı, İ.   +11 more
core   +1 more source

Precise radial velocities of giant stars. IV. A correlation between surface gravity and radial velocity variation and a statistical investigation of companion properties [PDF]

, 2008
Since 1999, we have been conducting a radial velocity survey of 179 K giants using the CAT at UCO/Lick observatory. At present ~20-100 measurements have been collected per star with a precision of 5 to 8 m/s. Of the stars monitored, 145 (80%) show radial
A. Quirrenbach, Armitage, Bedding, Butler, Butler, C. Aerts, Castelli, Cumming, D. S. Mitchell, De Ridder, Döllinger, Eggenberger, Fischer, Frink, Frink, Galland, Gladman, Gonzalez, Hatzes, Hatzes, Hekker, Hekker, I. A. G. Snellen, Ida, Johnson, Johnson, Kuschnig, Laughlin, Marcy, Marcy, Marcy, Marcy, Martic, Niedzielski, Pasquini, Pepe, Queloz, Reffert, S. Hekker, S. Reffert, Sadakane, Santos, Sato, Scargle, Setiawan, Setiawan, Valenti   +46 more
core   +3 more sources

A Tri‐Culture Heart‐on‐a‐Chip Platform With iPSC‐Derived Cardiac Cells for Predictive Cardiotoxicity Testing

Advanced Healthcare Materials, EarlyView.
This study presents the first entirely isogenic heart‐on‐chip, unifying cardiomyocytes, fibroblasts, and endothelial cells from a single iPSC source. The platform reveals a critical biological insight: the endothelium actively shields cardiac tissue from drug‐induced toxicity, challenging the predictive accuracy of conventional, avascular models for ...
Karine Tadevosyan, Jose Yeste, Mar Alvarez, Denise Marrero, Laura Casado‐Medina, Yvonne Richaud‐Patin, Olalla García‐Iglesias, Jagoda Litowczenko, Alba Morillas Garcia, Anton Guimerà, Xavi Illa, Rosa Villa, Angel Raya   +12 more
wiley   +1 more source

Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction

Advanced Healthcare Materials, EarlyView.
Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang, Jingguo Qu, Tonghuan Xiao, Xinyang Han, Michael Tin‐Cheung Ying   +4 more
wiley   +1 more source