Results 101 to 110 of about 21,020,521 (317)

MGM as a Large‐Scale Pretrained Foundation Model for Microbiome Analyses in Diverse Contexts

Advanced Science, EarlyView.
We present the Microbial General Model (MGM), a transformer‐based foundation model pretrained on over 260,000 microbiome samples. MGM learns contextualized microbial representations via self‐supervised language modeling, enabling robust transfer learning, cross‐regional generalization, keystone taxa discovery, and prompt‐guided generation of realistic,
Haohong Zhang, Yuli Zhang, Zixin Kang, Jiayun Xiong, Ronghua Yang, Kang Ning   +5 more
wiley   +1 more source

Effect of X-ray irradiation on threshold voltage of AlGaN/GaN HEMTs with p-GaN and MIS Gates

Nanotechnology and Precision Engineering, 2020
Commercially available AlGaN/GaN high-electron-mobility transistors (HEMTs) are beginning to enter the public scene from a range of suppliers. Based on previous studies, commercial GaN-based electronics are expected to be tolerant to different types of ...
Yongle Qi, Denggui Wang, Jianjun Zhou, Kai Zhang, Yuechan Kong, Suzhen Wu, Tangsheng Chen   +6 more
doaj   +1 more source

Enhancement of p-GaN Conductivity Using PECVD SiO[sub x]

Electrochemical and Solid-State Letters, 2005
A technique to enhance the hole concentration in activated Mg-doped p-type GaN epitaxial layers is described. The method consists of depositing a porous plasma-nhancedchemical vapor deposited SiOx layer on top of p-GaN after which the sample is heated to 950°C in nitrogen ambient for 1 min followed by the removal of the SiOx layer in a buffered HF ...
Karouta, F., Kappers, M.J., Krämer, M.C.J.C.M., Jacobs, B.   +3 more
openaire   +1 more source

Ultrafast Studies of Hot-Hole Dynamics in Au/p-GaN Heterostructures

, 2018
Harvesting non-equilibrium hot carriers from photo-excited metal nanoparticles has enabled plasmon-driven photochemical transformations and tunable photodetection with resonant nanoantennas.
Abdellah, Mohamed, Atwater, Harry A., Canton, Sophie E., Cheng, Wen-Hui, DuChene, Joseph S., Gosztola, David J., Habib, Adela, Hattori, Yocefu, Sa, Jacinto, Sundararaman, Ravishankar, Tagliabue, Giulia, Zheng, Kaibo   +11 more
core  

Intelligent Stain‐Free Histology on Structural Colorimetric Nanocavities

Advanced Science, EarlyView.
Chen and Gan et al. introduce a label‐free imaging platform using inexpensive Nanocavity‐on‐Silicon (NOS) slides. These slides transform subtle tissue variations into vivid structural colors, enabling high‐contrast histological imaging under a regular optical microscope. This stain‐free approach reveals morphological details comparable to traditional H&
Qizhe Chen, Yifei Ren, Lijie Hu, Yanyan Li, Wenyue Liang, Jin Wang, Han Gao, Xinhai Wang, Jiajun Li, Qiutao He, Yingfeng Zhu, Haifeng Hu, Qiwen Zhan, Imed Gallouzi, Jasmeen Merzaban, Di Wang, Zunguo Du, Xiaodong Gu, Qiaoqiang Gan   +18 more
wiley   +1 more source

Atrophic Skeletal Muscle‐Derived Extracellular Vesicles Transfer miR‐125a‐5p to Inhibit Bone Formation in Osteoporosis during Aging

Advanced Science, EarlyView.
A muscle‐bone endocrine pathway in aging is revealed in which extracellular vesicles released from atrophic skeletal muscle (Aged‐SKM‐EVs) inhibit bone formation. These EVs deliver miR‐125a‐5p to osteoblasts, thereby suppressing the SIRT7‐Sp7 signaling axis and osteogenic differentiation.
Xiaoyan Shao, Pan Zhang, Zhidan Fan, Jiaquan Lin, Xiang Chen, Na Liu, Wang Gong, Yi He, Yining Zhou, Tianshu Shi, Yong Shi, Yuze Ma, Wentian Gao, Haosheng Wang, Depeng Fang, Chengzhi Wang, Wenshu Wu, Wenjin Yan, Jianghui Qin, Dongyang Chen, Haiguo Yu, Qing Jiang, Baosheng Guo   +22 more
wiley   +1 more source

Metal-assisted electroless fabrication of nanoporous p-GaN for increasing the light extraction efficiency of light emitting diodes

AIP Advances, 2012
We report metal-assisted electroless fabrication of nanoporous p-GaN to improve the light extraction efficiency of GaN-based light emitting diodes (LEDs).
Ruijun Wang, Duo Liu, Zhiyuan Zuo, Qian Yu, Zhaobin Feng, Xiangang Xu   +5 more
doaj   +1 more source

Infrared behavior in systems with a broken continuous symmetry: classical O(N) model vs interacting bosons

, 2011
In systems with a spontaneously broken continuous symmetry, the perturbative loop expansion is plagued with infrared divergences due to the coupling between transverse and longitudinal fluctuations.
A. A. Abrikosov, A. A. Nepomnyashchy, A. A. Nepomnyashchy, A. A. Nepomnyashchy, A. A. Nepomnyashchy, A. L. Fetter, A. Z. Patashinskii, A. Z. Patashinskii, D. S. Petrov, J. Berges, J. Zinn-Justin, N. Dupuis, N. N. Bogoliubov, N. N. Bogoliubov, P. M. Chaikin, S. K. Ma, S. T. Beliaev, S. T. Beliaev, S. T. Beliaev, S. T. Beliaev, V. N. Popov, V. Popov, V. Popov, Yu. A. Nepomnyashchy, Yu. A. Nepomnyashchy   +24 more
core   +1 more source

High‐Fidelity Synthetic Data Replicates Clinical Prediction Performance in a Million‐Patient Diabetes Cohort

Advanced Science, EarlyView.
This study generates high‐fidelity synthetic longitudinal records for a million‐patient diabetes cohort, successfully replicating clinical predictive performance. However, deeper analysis reveals algorithmic biases and trajectory inconsistencies that escape standard quality metrics. These findings challenge current validation norms, demonstrating why a
Francisco Ortuño, Víctor M. de la Oliva Roque, Javier‐Ignacio Ramirez‐Lopez, David P. Kreil, Joaquín Dopazo, Carlos Loucera   +5 more
wiley   +1 more source

Effects of Switching on the 2-DEG Channel in Commercial E-Mode GaN-on-Si HEMT

Micromachines
In this study, the effects of switching on the two-dimensional electron gas (2-DEG) channel in an E-mode GaN-on-Si HEMT are investigated using a GS-065-004-1-L device that is commercially available for educational practice.
Roberto Baca-Arroyo
doaj   +1 more source