Results 91 to 100 of about 109,816 (295)

Fully Wireless and Flexible Valves for Multiplexed and Prolonged Intravesical Liquid Release

Advanced Healthcare Materials, EarlyView.
A fundamental mechanism for the simultaneous control of multiple magnetic valves is reported in a miniature soft robotic patch for intravesical drug delivery, enabling fully wireless and programmable liquid release. Integrated with a bioadhesive interface and induction‐coupling‐based liquid volume sensing, the soft robotic patch is promising to enable ...
Boyang Xiao, Yi Zhu, Yusheng Wang, Janene M. Pierce, Jeffrey J. Tosoian, Xiaoguang Dong   +5 more
wiley   +1 more source

Insights into the structure and kinematics of a Milky Way-like galaxy

Astronomy & Astrophysics
Context. Understanding how the large-scale kinematics of the Milky Way (MW) shape the formation and evolution of the interstellar medium remains challenging from an observational perspective, and numerical models that can reproduce the observed structure
Durán-Camacho E., Duarte-Cabral A.
doaj   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Kiloparsec-scale star formation law in M81 and M101 based on AKARI far-infrared observations

, 2010
We assess the relationships between the surface densities of the gas and star formation rate (SFR) within spiral arms of the nearby late-type spiral galaxies M81 and M101. By analyzing these relationships locally, we derive empirically a kiloparsec scale
Allen, Bigiel, Brouillet, Calzetti, Chynoweth, Cottrell, Cox, Dale, de Jong, Draine, Elmegreen, Freedman, Gao, Garnett, Gordon, Gordon, H. Kaneda, H. Shibai, Hamajima, Hasegawa, Hildebrand, Kaufman, Kawada, Kenney, Kennicutt, Kennicutt, Kennicutt, Knapen, Li, Lin, Maddalena, Misiriotis, Murakami, Parker, Pilyugin, Prescott, Pérez-González, Rice, Rieke, Rogstad, Rots, Sandage, Santillán, Sauvage, Schmidt, Schuster, Scoville, Scoville, Shirahata, Siebenmorgen, Smith, Suzuki, Suzuki, T. Nakagawa, T. Onaka, T. Suzuki, Taniguchi, Van der Hulst, Wilson   +58 more
core   +1 more source

Bottom‐Up Programming of Cell States in Cancer Organoids with Defined Synthetic Adhesion Cues

Advanced Materials, EarlyView.
A bottom‐up biomaterial platform is developed to program transcriptomic states in pancreatic cancer organoids by tuning adhesion cues within synthetic matrices. By combining a Design of Experiments framework with multiobjective optimization, matrix compositions are identified that enrich specific cellular programs like EMT.
Ali Nadernezhad, Verena J. Kast, Dagmar Pette, Franziska Baenke, Daniel E. Stange, Carsten Werner, Daniela Loessner   +6 more
wiley   +1 more source

Arm & Interarm Star Formation in Spiral Galaxies

, 2010
We investigate the relationship between spiral arms and star formation in the grand-design spirals NGC 5194 and NGC 628 and in the flocculent spiral NGC 6946.
A. K. Leroy, Bigiel, Binney, Blitz, Bush, Calzetti, Calzetti, Elmegreen, Elmegreen, Eskridge, F. Walter, Garcia-Burillo, Gil de Paz, H.-W. Rix, K. Foyle, Kennicutt, Knapen, Koda, Krumholz, Kuno, Leroy, Leroy, Momose, Schinnerer, Schlegel, Sellwood, Tamburro, Thornley, Walter   +28 more
core   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source

Distribution Properties of the 6.7 GHz Methanol Masers and Their Surrounding Gases in the Milky Way

The Astrophysical Journal
An updated catalog consisting of 1092 6.7 GHz methanol maser sources is reported in this work. Additionally, the NH _3 (1, 1), NH _3 (2, 2), and NH _3 (3, 3) transitions were observed toward 214 star-forming regions using the Shanghai Tianma radio ...
Tian Yang, Xi Chen, Yan-Kun Zhang, Xu-Jia Ouyang, Shi-Min Song, Jia-Liang Chen, Ying Lu   +6 more
doaj   +1 more source

Freeform Manufacturing of Plant‐Based Structural Colors for Scalable Photonic and Mechanochromic Devices

Advanced Materials, EarlyView.
A green, freeform manufacturing approach that utilizes robust aqueous two‐phase systems to create intricate and scalable photonic structures and non‐planar mechanochromic hydrogel actuators from plant‐based hydroxypropyl cellulose. This approach broadens the structural possibilities of sustainable photonic devices and mechanochromic systems, offering ...
Xiao Song, Peiqi Niu, Wenxi Gu, Chun Lam Clement Chan, Jiuhong Yi, Xu Liu, Peng Tan, Chon In Haydn Cheong, Qingwen Guan, Dan Fang, Bingpu Zhou, Zi Liang Wu, Ji Liu, Yan Yan Shery Huang, Iek Man Lei   +14 more
wiley   +1 more source

The Role of Spiral Arms in Galaxies

The Astrophysical Journal
We test the influence of spiral arms on the star formation activity of disk galaxies by constructing and fitting multiwavelength spectral energy distributions for the two nearby spiral galaxies NGC 628 and NGC 4321, at a spatial scale of 1–1.5 kpc ...
Bingqing Sun, Daniela Calzetti, Andrew J. Battisti   +2 more
doaj   +1 more source