Results 121 to 130 of about 117,051,059 (274)

The topological renormalisation of the 0(3) sigma model [PDF]

, 1995
Like other field theories of physical interest, the moduli-space integrals of the non-linear two-dimensional 0(3) sigma model diverge. We show that in the one-instanton sector the imposition of a cut-off in the moduli-space leads to an unacceptable ...
Costambeys, Richard George
core  

Impact of combined acidic and oxidative stress on guanine DNA damage

Scientific Reports
This research investigates guanine reactivity through quantum-chemical methods which study its behaviour during simultaneous oxidative and acidic stress using Density Functional Theory at the B3LYP/6-31G(d, p) computational method. The researchers tested
Islam G. Ali, Nada A. Khaled, Hanan Elhaes, Medhat A. Ibrahim   +3 more
doaj   +1 more source

The Holomorphic Architecture: Rotation as Computation --- A Generative AI Foundational Framework

                                                                                                Abstract     Contemporary AI processes "rotation" while believing it is processing "points." This cognitive blind spot is not an engineering oversight, but an inevitable consequence of axiomatic limitations: real-number parameter spaces, the separation of ...
openaire   +20 more sources

High Tree Species Diversity Promotes Thermal Enhancement Response of Microbial Carbon Use Efficiency

Advanced Science, EarlyView.
ABSTRACT Predicting soil carbon dynamics under warming is constrained by limited understanding of microbial thermal adaptation, particularly whether microbial carbon use efficiency (CUE) can adapt to warming and how plant diversity modulates this response. Using soils from a natural tree species diversity gradient in a subtropical forest, we combined a
Pengpeng Duan, Changqing Ye, Xinyi Yang, Chaoqun Wang, Wolfgang Wanek, Jian‐sheng Ye, Hongzhao Yuan, Hu Du, Kongcao Xiao, Xunyang He, Kelin Wang, Dejun Li   +11 more
wiley   +1 more source

Topological Graph Polynomials in Colored Group Field Theory

, 2009
In this paper we analyze the open Feynman graphs of the Colored Group Field Theory introduced in [1]. We define the boundary graph G ∂ of an open graph G and prove it is a cellular complex.
Razvan Gurau
core   +1 more source

Deep Learning Network‐Tailored Microenvironment Matching of 4D Bioprinting Bioactive Scaffolds for Bone Regeneration

Advanced Science, EarlyView.
A DLN dataset was built to analyze MABS composition versus in vitro/in vivo osteogenesis and angiogenesis. An MLP neural network, taking BG morphological parameters as input, extracts bioactive features from these datasets. A rabbit tibial defect model then validates 4D‐printed MABS for adaptability and bone regeneration in critical defects.
Xiongjie Liang, Yuechi Zhang, Weifeng Hu, Shiyan Lv, Fan Jia, Yan Zhang, Feng Wu, Changjiang Yang, Guanqi Zhen, Jinglong Yan, Xu Cui, Wei Zhao, Guanghua Chen   +12 more
wiley   +1 more source

Fully Programmable Slow Light Based on a Spinor Representation of Generalized Coupled‐Resonator‐Induced Transparency

Advanced Science, EarlyView.
A programmable coupled‐resonator‐induced transparency (CRIT) platform is proposed, generalizing classical electromagnetically induced transparency (EIT) via a spinor representation. By utilizing dual‐channel gauge fields and universal unitary operations, this architecture enables dynamically engineered, reconfigurable slow‐light bands on a silicon ...
Seungkyun Park, Beomjoon Chae, Hyungchul Park, Sunkyu Yu, Xianji Piao, Namkyoo Park   +5 more
wiley   +1 more source

Topological methods in abstract algebra. cohomology theory of groups [PDF]

Bulletin of the American Mathematical Society, 1949
openaire   +3 more sources

Multi‐tissue Metabolic GWAS and Drought‐Responsive Multi‐omics Reveal the Genetic Basis of the Quinoa Metabolome

Advanced Science, EarlyView.
A multi‐omics framework combining multitissue genome‐wide association studies, metabolomics, transcriptomics, proteomics, and functional validation uncovers the genetic basis of specialized metabolism in quinoa. The study identifies hundreds of metabolite‐associated loci, prioritizes candidate genes for saponin, betalain, and flavonoid biosynthesis ...
Julia von Steimker, Elodie L. Rey, Clara Stanschewski, Regina Wendenburg, Annabella Klemmer, Markéta Macho, Venkatesh P. Thirumalaikumar, Noha O. Saber, Aleksandra Skirycz, Alisdair R. Fernie, Mark Tester, Saleh Alseekh   +11 more
wiley   +1 more source

Network efficiency of functional brain connectomes altered in type 2 diabetes patients with and without mild cognitive impairment

Diabetology & Metabolic Syndrome
Aim To explore the topological organization alterations of functional connectomes in type 2 diabetes (T2DM) patients with and without mild cognitive impairment (MCI), and compare these with structural connectomes changes. Methods Twenty-six T2DM patients
Juan Li, Qiang Zhang, Juan Wang, Ying Xiong, Wenzhen Zhu   +4 more
doaj   +1 more source