Results 81 to 90 of about 129,718 (286)

Killing vector fields with twistor derivative

Journal of Differential Geometry, 2007
Motivated by the possible characterization of Sasakian manifolds in terms of twistor forms, we give the complete classification of compact Riemannian manifolds carrying a Killing vector field whose covariant derivative (viewed as a 2-form) is a twistor form.
openaire   +3 more sources

Astrocyte Enrichment of 3D Cortical Constructs Enhances Brain Repair

Advanced Science, EarlyView.
This study highlights the role of astrocytes in supporting neural progenitor cell survival and differentiation after traumatic brain injury. Astrocytes enhanced neuronal differentiation, improved cell survival in co‐cultures, and promoted integration of microfluidics‐based implants with host tissue following implantation. Additionally, increased axonal
Elisa M. Cruz, Luana C. Soares, Gretchen Greene, Fernando Messore, Mohammed Abuelem, Mingyu Li, Caroline Andersen, Mirriam Domocos, Elisa Vitiello, Rabeah Abdul Razak, Marlene Lawston, Gabriel Moser, Talia Vasaturo‐Kolodner, Mona Barkat, Roslyn M. Bill, Edward Mann, Linna Zhou, Mootaz M. Salman, Hagan Bayley, Zoltán Molnár, Francis G. Szele   +20 more
wiley   +1 more source

Null Killing Vector Dimensional Reduction and Galilean Geometrodynamics

, 1994
The solutions of Einstein's equations admitting one non-null Killing vector field are best studied with the projection formalism of Geroch. When the Killing vector is lightlike, the projection onto the orbit space still exists and one expects a covariant
B. Julia, Bel, Brinkmann, Cartan, Cartan, Dixon, Dombrowski, Duval, Duval, Ehlers, Ehlers, Friedrichs, Geroch, Geroch, Goenner, H. Nicolai, Julia, Julia, Kramer, Kundt, Künzle, Künzle, Le Bellac, MacDowell, Mason, Nicolai, Trautman, Trautman, Weyl, Witten   +29 more
core   +1 more source

Maxwell fields in spacetimes admitting nonnull Killing vectors [PDF]

Classical and Quantum Gravity, 1993
We consider source-free electromagnetic fields in spacetimes possessing a non-null Killing vector field, $ ^a$. We assume further that the electromagnetic field tensor, $F_{ab}$, is invariant under the action of the isometry group induced by $ ^a$.
openaire   +3 more sources

LMO7 Suppresses Tumor‐Associated Macrophage Phagocytosis of Tumor Cells Through Degradation of LRP1

Advanced Science, EarlyView.
LMO7 in tumor‐associated macrophages suppresses phagocytosis of tumor cells and limits cytotoxic T lymphocytes infiltration, fostering tumor progression. Mechanistically, LMO7 mediates the ubiquitination and degradation of the phagocytic receptor LRP1, impairing its ability to engulf tumor cells and driving macrophages toward an antitumor phenotype ...
Mengkai Li, Tao Wang, Yuwen Zhong, Zhiming Wang, Wei Li, Zejian Wang, Xinyi Yang, Yu Qiao, Jianfeng Xiang, Wei Gu, Zishu Wang, Lei Sun, Feng Qian   +12 more
wiley   +1 more source

Programmable Klebsiella pneumoniae Phage Tropism Enabled by Scalable Receptor‐Binding Protein Mining and Modular Assembly

Advanced Science, EarlyView.
This work introduces a scalable, data‐driven strategy that turns the vast sequence diversity of phage receptor‐binding proteins into modular tools for engineering customizable phages. By clustering and experimentally validating diverse RBPs, the authors build an accurate map linking sequence to host specificity and create plug‐and‐play modules that ...
Shisong Jing, Yiyao Song, Xianbiao Bi, Yuqin Song, Dawei Wei, Jiangqing Huang, Yuan Zeng, Gang Zhang, Rong Zhang, Chao Wang, Jie Feng   +10 more
wiley   +1 more source

Generalized supergravity equations for the WZW model

Physics Letters B
Generalized supergravity equations (GSEs) were originally proposed as a modification of the standard IIB supergravity equations to satisfy the background of η-deformed AdS5×S5 introduced by Arutyunov et al.
Ali Eghbali, Simin Ghasemi-Sorkhabi, Adel Rezaei-Aghdam   +2 more
doaj   +1 more source

Certain results on Kenmotsu manifolds

Cumhuriyet Science Journal, 2020
In this paper, we focus on Kenmotsu manifolds. Firstly, we investigate almost quasi Ricci symmetric Kenmotsu manifolds. Then, we study Kenmotsu manifold admitting a Yamabe soliton. We find that if the soliton field of the Yamabe soliton is orthogonal to
Halil İbrahim Yoldaş
doaj   +1 more source

pH/ROS‐Responsive Injectable Hydrogel Co‐Loaded with B7‐H3 Blocker and NETs Suppressor Boosts OSCC Synergistic Immunotherapy

Advanced Science, EarlyView.
A pH/ROS‐dual‐responsive injectable hydrogel, formed by dynamic boronic ester and Schiff base crosslinking, co‐delivers enoblituzumab (B7‐H3 blocker) and Cl‐amidine (NETs suppressor). Via localized intratumoral delivery, it synergistically reprograms the immunosuppressive tumor microenvironment, overcomes T cell infiltration barriers, restores ...
Huan Li, Yun Li, Yating Hu, Yanbing Yao, Yaodong He, Jing Li, Jiaqi Tang, Zhenyan Zhao, Yan Wang, Yulun He, Xiaolong Zhang, Xinjie Yang, Jianhua Wei   +12 more
wiley   +1 more source

*-Ricci soliton on (κ, μ)′-almost Kenmotsu manifolds

Open Mathematics, 2019
Let (M, g) be a non-Kenmotsu (κ, μ)′-almost Kenmotsu manifold of dimension 2n + 1. In this paper, we prove that if the metric g of M is a *-Ricci soliton, then either M is locally isometric to the product ℍn+1(−4)×ℝn or the potential vector field is ...
Dai Xinxin, Zhao Yan, Chand De Uday
doaj   +1 more source