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29,093 results on '"Ling, Ling"'

1. Relationship between Interoception and Autistic Traits: A Resting-State Functional Connectivity Study

Author

Han-xue Yang, Yi-jing Zhang, Hui-xin Hu, Ling-ling Wang, Yong-jie Yan, Simon S. Y. Lui, Yi Wang, and Raymond C. K. Chan

Abstract

Interoception, the sense of the physiological condition of our body, is impaired in individuals with autism spectrum disorders. Evidence suggests that subclinical autistic traits are mild manifestations of autistic symptoms, present in the general population. We examined the resting-state functional connectivity (rsFC) associating with interoception and autistic traits in 62 healthy young adults. Autistic traits correlated negatively with the rsFC between the lateral ventral anterior insula and anterior cingulate cortex. Interoceptive accuracy and sensibility correlated positively with the rsFC between interoceptive brain networks and the cerebellum, supplementary motor area, and visual regions. The results suggest that a negative relationship between interoception and autistic traits is largely accounted for by both self-report measures and decreased rsFC amongst the interoceptive brain network.

Published
2024
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7. Exome sequencing in Asian populations identifies low-frequency and rare coding variation influencing Parkinson’s disease risk

Author

Chew, Elaine GY, Liu, Zhehao, Li, Zheng, Chung, Sun Ju, Lian, Michelle M., Tandiono, Moses, Heng, Yue Jing, Ng, Ebonne Y., Tan, Louis CS, Chng, Wee Ling, Tan, Tiak Ju, Peh, Esther KL, Ho, Ying Swan, Chen, Xiao Yin, Lim, Erin YT, Chang, Chu Hua, Leong, Jonavan J., Peh, Ting Xuan, Chan, Ling Ling, Chao, Yinxia, Au, Wing-Lok, Prakash, Kumar M., Lim, Jia Lun, Tay, Yi Wen, Mok, Vincent, Chan, Anne YY, Lin, Juei-Jueng, Jeon, Beom S., Song, Kyuyoung, Tham, Clement C., Pang, Chi Pui, Ahn, Jeeyun, Park, Kyu Hyung, Wiggs, Janey L., Aung, Tin, Tan, Ai Huey, Ahmad Annuar, Azlina, Makarious, Mary B., Blauwendraat, Cornelis, Nalls, Mike A., Robak, Laurie A., Alcalay, Roy N., Gan-Or, Ziv, Reynolds, Richard, Lim, Shen-Yang, Xia, Yun, Khor, Chiea Chuen, Tan, Eng-King, Wang, Zhenxun, and Foo, Jia Nee

Published
2024
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18. Precise measurement of the cosmic-ray spectrum and $\left \langle \ln A \right \rangle$ by LHAASO -- connecting the Galactic to the extragalactic components

Author

Lv, Xing-Jian, Bi, Xiao-Jun, Fang, Kun, Guo, Yi-Qing, He, Hui-Hai, Ma, Ling-Ling, Yin, Peng-Fei, Yuan, Qiang, and Zhao, Meng-Jie

Subjects
Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Phenomenology
Abstract

Recently LHAASO Collaboration gives precise measurements of cosmic rays (CR) all particle energy spectrum and mean logarithmic mass $\left \langle \ln A \right \rangle$ from 0.3 PeV to 30 PeV. Combining the CR measurements by AMS-02 and DAMPE in space and that by LHAASO and Auger on the ground we construct a model to recover all these measurements from tens of GeV to tens of EeV. We find the LHAASO measurement is crucial in the model construction by connecting the Galactic component to the extragalactic component. The precise measurements of CR spectra for individual species by AMS-02 and DAMPE together with the newest LHAASO results clearly indicates three Galactic CR components, that is, a soft low energy background, a hard high energy component, and a local source contribution. However, the LHAASO data show that above $\sim 10^{16}$ eV a nonnegligible extragalactic component must be included. Combining the Auger results and the LHAASO results we figure out the extragalactic CRs which need at least two components at lower and higher energies. Thanks to the precise measurements by LHAASO the constraints on the model parameters are quite stringent. The spectra features and mass measurements in all energy range are all well reproduced in the model., Comment: 11 pages, 2 figures, 4 tables

Published
2024

19. On the supporting quasi-hyperplane and separation theorem of geodesic convex sets with applications on Riemannian manifolds

Author

Zhou, Li-wen, Liu, Ling-ling, Min, Chao, Zhang, Yao-jia, and Huang, Nan-Jing

Subjects
Mathematics - Optimization and Control
Abstract

In this paper, we first establish the separation theorem between a point and a locally geodesic convex set and then prove the existence of a supporting quasi-hyperplane at any point on the boundary of the closed locally geodesic convex set on a Riemannian manifold. As applications, some optimality conditions are obtained for optimization problems with constraints on Riemannian manifolds.

Published
2024

20. Active formation of Friedrich-Wintgen bound states in the continuum in dielectric dimerized grating borophene heterostructure

Author

Yan, Xiao-Fei, Wang, Xin-Yang, Lin, Qi, Wang, Ling-Ling, and Liu, Gui-Dong

Subjects
Physics - Optics
Abstract

The Friedrich-Wintgen bound state in the continuum (FW BIC) provides a unique approach for achieving high quality factor (Q-factor) resonance, which has attracted wide attention and promoted the development of various applications. However, the FW BIC is usually considered as accident BIC resulting from the continuous parameters tuning, and a systematic approach to generate the FW BIC is still lacking. To address this, a method of actively forming FW BIC by matching the damping rate and resonance frequency of the coupling mode is proposed. As a proof-of-principle example, we propose a dielectric dimerized grating borophene heterostructure that generates a FW BIC near the commercially important communication wavelength. The coupling system comprises an electrically tunable borophene plasmon mode and a BIC supported by a dielectric dimer grating that can be attributed to the Brillouin zone folding. More interestingly, the BIC can be excited by the localized borophene plasmon (LBP) mode through near-field coupling as LBP mode can be considered as the dipole source. The interaction between them can further form the FW BIC, and support electromagnetically induced transparency (EIT)-like with maximum group index up to 2043, indicating its great potential for slow light applications. Our results provide a promising strategy and theoretical support for the generation of FW BIC in active plasmonic optical devices.

Published
2024

33. Achieving coherent perfect absorption based on flat-band plasmonic Friedrich-Wintgen BIC in borophene metamaterials

Author

Zhang, Yan-Xi, Lin, Qi, Yan, Xiao-Qiang, Wang, Ling-Ling, and Liu, Gui-Dong

Subjects
Physics - Optics
Abstract

Many applications involve the phenomenon of a material absorbing electromagnetic radiation. By exploiting wave interference, the efficiency of absorption can be significantly enhanced. Here, we propose Friedrich-Wintgen bound states in the continuum (F-W BICs) based on borophene metamaterials to realize coherent perfect absorption with a dual-band absorption peak in commercially important communication bands. The metamaterials consist of borophene gratings and a borophene sheet that can simultaneously support a Fabry-Perot plasmon resonance and a guided plasmon mode. The formation and dynamic modulation of the F-W BIC can be achieved by adjusting the width or carrier density of the borophene grating, while the strong coupling leads to the anti-crossover behavior of the absorption spectrum. Due to the weak angular dispersion originating from the intrinsic flat-band characteristic of the deep sub-wavelength periodic structure, the proposed plasmonic system exhibits almost no change in wavelength and absorption at large incident angles (within 70 degrees). In addition, we employ the temporal coupled-mode theory including near- and far-field coupling to obtain strong critical coupling, successfully achieve coherent perfect absorption, and can realize the absorption switch by changing the phase difference between the two coherent beams. Our findings can offer theoretical support for absorber design and all-optical tuning.

Published
2023

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