Results 91 to 100 of about 331,232 (263)

D 6 R 4 curvature corrections, modular graph functions and Poincaré series

open access: yesJournal of High Energy Physics, 2018
In this note we study the U-duality invariant coefficient functions of higher curvature corrections to the four-graviton scattering amplitude in type IIB string theory compactified on a torus.
Olof Ahlén, Axel Kleinschmidt
doaj   +1 more source

Graph-theory induced gravity and strongly-degenerate fermions in a self-consistent Einstein universe

open access: yes, 2011
We study UV-finite theory of induced gravity. We use scalar fields, Dirac fields and vector fields as matter fields whose one-loop effects induce the gravitational action.
Elizalde E.   +6 more
core   +1 more source

Kinetic Regimes of Hydrogen Absorption in Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Knowledge of the hydrogen incorporation mechanisms in thin layers in relation to the amount absorbed is essential to design coatings and devices compatible with hydrogen‐based technologies. A combination of simultaneous in situ methods gives detailed insight into the hydrogenation of a prototypical hydrogen absorber layer in a time‐dependent manner ...
Laura Guasco   +7 more
wiley   +1 more source

应用电网络分析行星轮系运动学特性并仿真验证

open access: yesJixie chuandong, 2009
A kind of new method of theory to analyze kinematics and dynamics of epicyclical gear trains is provided.According to the systematization graph model,adopt the concrete systematization method to analysis epicyclical gear trains, In theory,the relation of
刘相蕊, 薛隆泉, 史晓影
doaj  

Coacervates Made of Elastin‐Like Polypeptides Fused with Melanocyte‐Stimulating Hormone and Monocyte Chemoattractant Protein Enhance Skin Wound Healing in Spinal Cord‐Injured Mice

open access: yesAdvanced Healthcare Materials, EarlyView.
Pressure skin wounds are frequent complications after spinal cord injury (SCI), with impaired healing due to vascular and immune deficits. Elastin‐like polypeptides (ELP) fused to α‐MSH (MSH‐ELP) or MCP‐1 (MCP‐ELP) are developed and tested on these wounds. The resulting nanoparticles are non‐toxic and bioactive, and they enhance macrophage recruitment,
Suneel Kumar   +7 more
wiley   +1 more source

One loop tadpole in heterotic string field theory

open access: yesJournal of High Energy Physics, 2017
We compute the off-shell 1-loop tadpole amplitude in heterotic string field theory. With a special choice of cubic vertex, we show that this amplitude can be computed exactly.
Theodore Erler   +2 more
doaj   +1 more source

Macrophage Membrane‐Cloaked, ROS‐Triggered Quercetin Nanocarriers Target Ovarian Lesions to Treat Polycystic Ovary Syndrome

open access: yesAdvanced Healthcare Materials, EarlyView.
The synthesis process of MM@PCD@QNPs and its potential mechanism for treating PCOS. (A) Assembly steps of MM@PCD@QNPs. (B) Synthesis and decomposition of MM@PCD@QNPs. (C) Potential therapeutic mechanisms of MM@PCD@QNPs for PCOS. PCD, PABP conjugated with DEX polymer; QUR, quercetin; CDI, N, N′‐carbonyldiimidazole; DEX, dextran; PABP, 4‐(hydroxymethyl ...
Wenzhu Li   +9 more
wiley   +1 more source

Soft Neural Interfaces for Circuit‐Level Analysis of Magnetogenetic Deep Brain Stimulation in Parkinson's Disease Models

open access: yesAdvanced Healthcare Materials, EarlyView.
ABSTRACT Magnetogenetic deep brain stimulation (MG‐DBS) represents a wireless neuromodulation that has demonstrated long‐lasting behavioral benefits in Parkinson's disease models. However, the circuit‐level mechanisms underlying these therapeutic effects have remained uncharacterized due to limitations of conventional neural interfaces.
Jakyoung Lee   +10 more
wiley   +1 more source

Hidden zeros of the cosmological wavefunction

open access: yesJournal of High Energy Physics
Motivated by the recent discovery of hidden zeros in particle and string amplitudes, we characterize zeros of individual graph contributions to the cosmological wavefunction of a scalar field theory. We demonstrate that these contributions factorize near
Shounak De   +4 more
doaj   +1 more source

One-particle reducibility in effective scattering theory

open access: yesEPJ Web of Conferences, 2016
To construct the reasonable renormalization scheme suitable for the effective theories one needs to resolve the “problem of couplings” because the number of free parameters in a theory should be finite.
Vereshagin V.
doaj   +1 more source

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