Results 141 to 150 of about 6,416,221 (303)

EndoTac: An Endoscopic Camera‐Based Tactile Sensor with High Sensitivity for Minimally Invasive Surgery

Advanced Science, EarlyView.
EndoTac presents a trocar‐compatible endoscopic vision‐based tactile sensor that uses a convex mirror to enlarge side‐facing tactile coverage during minimally invasive vessel palpation. Distorted tactile images are unwarped and processed by a learning model to estimate vascular deformation, enabling sensitive, spatially distributed tactile perception ...
Yupeng Wang, Nicolas Raison, Xuyang Zhang, Aijia Yang, Lukas Lindenroth, Shan Luo   +5 more
wiley   +1 more source

Bioadhesive‐Integrated 3D‐Printed Multilayer Scaffolds Secure a Mechanically‐Stable Osteoimmune Niche for Enhanced Bone Augmentation

Advanced Science, EarlyView.
A 3D‑printed multilayer adhesive scaffold, firmly anchored to bone defects by simple finger pressing, suppresses micromotion and secures mechanical stability of the osteogenic niche. This stabilization likely contributes to the enhanced bone augmentation by fostering a pro‑regenerative mechano‐immune profile—characterized by M2‑like macrophage ...
Delu Zhao, Qiuyi Li, Lingyun Wang, Chongao Zhang, Yutian Cheng, Shuang Liu, Fulan Wei, Zheqin Dong   +7 more
wiley   +1 more source

PROTAC‐Engineered Protein/DNA Nanoantigen is a Potent Booster for Dendritic Cell Vaccines in Cancer Immunotherapy

Advanced Science, EarlyView.
A PROTAC‐functionalized protein/DNA‐integrated nanoantigen platform is developed to enhance dendritic cell vaccine potency. By combining a VHL‐recruiting peptide‐modified antigen with a sustained expression plasmid within CaCO3 nanoparticles, this system amplifies cross‐presentation, promotes DC maturation, and elicits robust Th1 and CTL responses ...
Peng Liu, Qiang Chen, Zhe Zhou, Yuekang Xu, Jinyao Li   +4 more
wiley   +1 more source

Modelling Thermonuclear X-ray Bursts on Accreting Neutron Stars

, 2020
X-ray bursts are the most common nuclear explosions in the universe, and occur on the surface of neutron stars. This thesis develops new methods of modelling these bursts using computer simulations, which can be used to improve our understanding of ...
ZAC PETER JOHNSTON (8455971)
core   +1 more source

Programmable Paracrine‐Mimetic Microneedle System for Temporal Regulation of Cardiac Repair

Advanced Science, EarlyView.
Temporal signaling is encoded into a programmable paracrine‐mimetic microneedle patch via tris(2,2'‐bipyridyl)dichlororuthenium(II) hexahydrate/sodium persulfate‐tuned hydrogel microparticles that deliver TGF‐β, IGF‐1, and VEGF over phase‐matched 7‐, 14‐, and 28‐day windows.
Yichen Dai, Pengchong Du, Zhaoyang Wang, Surilige, Rangga Fokta, Renjian Tan, Xiqing Zhao, Shuoyi Zhang, Yuecheng Wang, Yixin Zhang, Ziliang Fu, Rui Gong, Cheng Jiang, Yisheng He, Qiguang Wang, Renke Li, Khoon Lim, Junnan Tang, Xiaolin Cui   +18 more
wiley   +1 more source

The LOFT perspective on neutron star thermonuclear bursts [PDF]

, 2015
This is a White Paper in support of the mission concept of the Large Observatory for X-ray Timing (LOFT), proposed as a medium-sized ESA mission. We discuss the potential of LOFT for the study of thermonuclear X-ray bursts on accreting neutron stars. For
Paerels, F.B.S., Linares, M., Yu, W., Falanga, M., Cavecchi, Y., Woosley, S.E., Weinberg, N.N., Brown, E.F., Méndez, M.; id_orcid, José, J., Degenaar, N., Thielemann, F.-K., Cumming, A., Thielemann, F.-K, Suleimanov, V.F., Malone, C. M., Méndez, M., Galloway, D. K., Schatz, H., Watts, A. L., Rózanska, A., Zhang, S., Bhattacharyya, S., Miller, M.C., Brown, E. F., Chakrabarty, D., Weinberg, N. N., Chenevez, J., Miller, M. C., Ballantyne, D. R., Watts, A.L., Poutanen, J., José , J., Strohmayer, T. E., Altamirano, D., Strohmayer, T.E., Galloway, D.K., Malone, C.M., in 't Zand, J. J. M., Paerels, F. B. S., Woosley, S. E., Keek, L., Suleimanov, V. F., in ’t Zand, J.J.M., Mahmoodifar, S., Heger, A., Zingale, M., Serino, M., in `t Zand, J. J. M.   +48 more
core  

An Avalanche Effect Nanomodulator Triggers Cascade Ferroptosis/Cuproptosis for Immunosuppressive Microenvironment Remodeling

Advanced Science, EarlyView.
A nanomodulator called L‐Arginine/lificiguat@Copper‐hollow Prussian blue@Calcium phosphate nanoparticles is constructed to launch a self‐amplifying “avalanche effect” in tumor cells. The ensuing cascade, triggered by the acidic tumor microenvironment and near‐infrared light, induces calcium overload, generates a reactive oxygen species and reactive ...
Hongmei Zhou, Caixi Yu, Guilan Xu, Lijuan Liu, Yujia Liang, Yulin Liang, He Ding, Litu Zhang, Piaoping Yang, Chen Wang   +9 more
wiley   +1 more source

X-ray observations of gamma-ray bursts [PDF]

, 1984
As of this writing, all existing simultaneous x-ray observations of gamma-ray bursts (that is, observation having useful sensitivity below 30 keV at the time of the burst) have been serendipitous.
Katoh, M., Murakami, T., Laros, J. G.
core  

Weak X-Ray Bursts on Slowly Accreting Neutron Stars

The Astrophysical Journal
Nearly all observed thermonuclear X-ray bursts are thought to be triggered by the thermally unstable triple-alpha process. Unlike in accreting white dwarfs, the ≳10 ^8 K envelope temperature forces hydrogen burning to proceed via the β -limited ...
Sierra Casten, Simon Guichandut, Andrew Cumming, Edward F. Brown   +3 more
doaj   +1 more source

Comets, X-ray bursts, and gamma-ray bursts

The Astrophysical Journal, 1986
The proposal, revived by Tremaine and Zytkow (1985), that accretion of comets by neutron stars may be the origin of gamma-ray bursts is considered. This mechanism has difficulty accounting for the observed gamma-ray spectrum and optical counterparts of the bursts. The survival of comets near supernovae is investigated.
openaire   +1 more source