Results 41 to 50 of about 228,636 (318)

Lattice Quantum ChromoDynamics with approximately chiral fermions

, 2008
In this work we present Lattice QCD results obtained by approximately chiral fermions. We use the CI fermions in the quenched approximation to investigate the excited baryon spectrum and to search for the Theta^+ pentaquark on the lattice. Furthermore we
Hierl, Dieter
core   +1 more source

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

Advanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari, Supharoek Sornsomrit, Muhammad Ayaz Akbar, Stephan Rudykh   +3 more
wiley   +1 more source

Comprehensive bioinformatics analysis reveals prognostic significance and immunological roles of WNT gene family in breast cancer

Scientific Reports
Breast cancer (BRCA) is one of the most commonly diagnosed cancers and the leading cause of cancer-related deaths among women worldwide. Previous studies have shown that the WNT (wingless type) gene family plays a role in the development of various ...
Fatema Tuj Johora Fariha, Muntasim Fuad, Chandra Shekhar Saha, Sajjad Hossen, Md. Jubayer Hossain   +4 more
doaj   +1 more source

Chiral Photons from Chiral Gravitational Waves [PDF]

Physical Review Letters, 2019
We show that a parity-breaking uniform (averaged over all directions on the sky) circular polarization of amplitude $V_{00} \simeq 2.6 \times 10^{-17}\, Δχ(r/0.06)$ can be induced by chiral gravitational-wave (GW) background with tensor-to-scalar ratio $r$ and chirality parameter $Δχ$ (which is $\pm1$ for a maximally chiral background).
Inomata, Keisuke, Kamionkowski, Marc
openaire   +3 more sources

Design and Analysis of Compression–Torsion Coupling Metamaterials Using the Golden Section Method

Advanced Engineering Materials, EarlyView.
A novel compression–torsion metamaterial is engineered using inclined rods and symmetry breaking. To optimize its torsional performance, the golden section method is employed. The mechanical response of the metamaterial is validated through both numerical analysis and experimental validation.
Amirhossein Hassani, Sara Bagherifard
wiley   +1 more source

Modification of chiral dimethyl tartrate through transesterification : immobilisation on POSS and enantioselectivity reversion in Sharpless asymmetric epoxidation

, 2010
Modification of dimethyl tartrate has been investigated through transesterification with aminoalcohols to provide reactive functionalities for the covalent bonding of chiral tartrate to polyhedral oligomeric silsesquioxanes.
Sherrington, D.C., Van Grieken, R., Van Grieken, Rafael, Sherrington, David C., Gibson, Colin L., Iglesias, José, García, R.A., Gibson, C.L., Iglesias, J., García, Rafael A.   +9 more
core   +1 more source

Flow chemistry-enabled asymmetric synthesis of cyproterone acetate in a chemo-biocatalytic approach

Nature Communications
Flow chemistry has many advantages over batch synthesis of organic small-molecules in terms of environmental compatibility, safety and synthetic efficiency when scale-up is considered.
Yajiao Zhang, Minjie Liu, Xianjing Zheng, Liang Gao, Li Wan, Dang Cheng, Fener Chen   +6 more
doaj   +1 more source

Emergent Topological Magnons and Thermal Hall Effect in 2D Filling‐Enforced Fully Compensated Ferrimagnets

Advanced Functional Materials, EarlyView.
Schematic illustration of ferroelectric‐intercalation‐driven transitions in magnetic configurations and magnonic topological phases, together with the symmetry relations of magnonic Berry curvature. ABSTRACT Magnons in collinear magnets with vanishing net magnetization offer unique advantages for spin transport, including ultrafast dynamics and ...
Yingxi Bai, Bo Yuan, Zhenzhou Guo, Jian Zhang, Ying Dai, Baibiao Huang, Xiaotian Wang, Chengwang Niu, Gang Zhang   +8 more
wiley   +1 more source

Synthesis of racemic and chiral BEDT-TTF derivatives possessing hydroxy groups and their achiral and chiral charge transfer complexes

, 2015
Chiral molecular crystals built up by chiral molecules without inversion centers have attracted much interest owing to their versatile functionalities related to optical, magnetic, and electrical properties.
John D. Wallis, Yoshida, J, Kazuyuki Takahashi, John D Wallis, Hatsumi Mori, Akira Ueda, Sara Jane Krivickas, Krivickas, SJ, Takahashi, K, Chiho Hashimoto, Ueda, A, Wallis, JD, Mori, H, Hashimoto, C, Sara J. Krivickas, Junya Yoshida   +15 more
core   +1 more source

The Chirality Trinity: Chirality, Chirality Prime and Time Chirality

The flow of time moves in one direction in any spatial position and orientation in this universe. Chiral objects, which lack mirror symmetry, retain their chirality regardless of their position or orientation. Despite being seemingly independent, time and chirality share common features such as universality -- applying to 'any position and orientation'
Cheong, Sang-Wook, Huang, Fei-Ting
openaire   +2 more sources