Results 71 to 80 of about 20,648 (268)

Polarization Engineering in Vinylene‐Linked COFs Toward Efficient Neuromorphic Computing

Advanced Science, EarlyView.
A vinyl‐linked covalent organic framework (COF‐DIBPY) was synthesized on a conductive substrate for memristor applications. Redox reactions and bromide migration enable low‐voltage (0.5V) conductance switching with high analog on/off ratio (15.7). The device was further integrated into a speech emotion recognition system for acoustic simulation and ...
Hao Wang, Lei Zhao, Haoyuan Yao, Qiongshan Zhang, Fuzhen Xuan, Bin Zhang   +5 more
wiley   +1 more source

Image encryption using enhanced DCT transform for frequency domain applications [PDF]

MATEC Web of Conferences
improving system performance and reliability. Key leaks and inadequate key strength are common issues with numerical global key models and public block cipher algorithms that use pseudo-random numbers.
Ganesh Bande, Ganesh Davanam, Sunil Kumar M., Rishitha Pasupula, Sri Vidya Devi P., Singh Balpreet   +5 more
doaj   +1 more source

Heat Stress Promotes Fibroblast‐Derived WNT5A Secretion Through m6A Modification to Activate Melanogenesis

Advanced Science, EarlyView.
Heat stress promotes WNT5A secretion from fibroblasts via METTL3/YTHDC1‐dependent m6A methylation. Subsequently, WNT5A binds to FZD10 on melanocytes, activating β‐catenin‐driven melanogenesis. ABSTRACT As the impact of global warming continues to intensify, the effects of heat stress on the skin are becoming increasingly evident.
Yuanyuan Wan, Yaqing Wen, Yushan Zhang, Lan Zhang, Jianjian Zhu, Zhen Tang, Ling Jiang, Chuhan Fu, Shu Zhou, Keyi Zhang, Jiangfeng Huang, Li Lei, Jing Chen, Qinghai Zeng   +13 more
wiley   +1 more source

Adaptation of Echinococcus Multilocularis to Oxidative Stress Depends on EmPDK‐Mediated Metabolic Reprogramming

Advanced Science, EarlyView.
Metabolic adaption presents a vital survival strategy for E. multilocularis. This study identifies EmPDK as a central metabolic regulator governing glucose metabolic reprogramming. Oxidative stress activates EmHIF1α to induce EmPDK expression. Mechanistic characterization reveals this ROS/EmHIF1α/EmPDK axis drives glycolytic reprogramming to sustain ...
Huijuan Wang, Zhijian Xu, Ye Tian, Yao Zhang, Zhe Cheng, Yanhai Wang   +5 more
wiley   +1 more source

Relationship between DCT-II, DCT-VI, and DST-VII transforms [PDF]

2013 IEEE International Conference on Acoustics, Speech and Signal Processing, 2013
Discrete Sine Transforms of type VII (DST-VII) have recently received considerable interest in video coding. In this paper, we show that there exists a direct connection between DST-VII and DCT-II transforms, allowing their joint computation for certain transform sizes. This connection also yields fast algorithms for constructing DCT-VI and DCT-VII.
openaire   +1 more source

Intratumoral Hypoxia Triggers Mitochondrial BHLHE40 ROS Sensing Pathway to Promote Radioresistance in Triple‐Negative Breast Cancer

Advanced Science, EarlyView.
Hypoxia triggers a dual mechanism for BHLHE40 upregulation: reactive oxygen species (ROS)‐dependent post‐translational modification and hypoxia‐inducible factor (HIF)‐dependent transcriptional activation. Under hypoxic conditions, mitochondrial BHLHE40 accumulates and senses ROS via cysteine thiol oxidation and disulfide‐linked homodimer formation ...
Jia Liu, Ziliang Nie, Xi Chen, Guangyu Ji, Yajing Zhang, Zhiqun Zhao, Yuhong Zhang, Xinlong Du, Zhenzhen Zhou, Jiayi Li, Yaozong Yang, Fengqi Sun, Zhibo Yan, Haiquan Lu   +13 more
wiley   +1 more source

An Efficient Lossless ROI Image Compression Using Wavelet-Based Modified Region Growing Algorithm

Journal of Intelligent Systems, 2018
Nowadays, medical imaging and telemedicine are increasingly being utilized on a huge scale. The expanding interest in storing and sending medical images brings a lack of adequate memory spaces and transmission bandwidth.
Sreenivasulu P., Varadarajan S.
doaj   +1 more source

m6A‐Driven Pexophagy Triggers Placental Ferroptosis to Impair Fetal Growth Upon Environmental Stress

Advanced Science, EarlyView.
Prenatal environmental stress exposure promotes m6A modification to drive PEX2‐dependent pexophagy, thereby causing placental ferroptosis and FGR. ABSTRACT The role and underlying mechanisms of placental ferroptosis in fetal growth restriction (FGR) induced by environmental stress remain poorly understood.
Xin‐Xin Zhang, Ye‐Xin Luo, Cheng‐Fang Sun, Rui Pan, Yu‐Xi Wu, Zhi Yuan, Xin‐Run Wang, Xu‐Dong Zhang, Lan‐Lan Wu, Xiang‐Yu Yao, Zhan‐Dong Song, Wei Chang, Tian Wei, Pan‐Yuan Cai, Tian‐Ci Zhang, Yong‐Wei Xiong, De‐Xiang Xu, Hua Wang, Hua‐Long Zhu   +18 more
wiley   +1 more source

Initial experience of DCTs [PDF]

British Dental Journal, 2020
Mehdizadeh, R., Baynes, W., Aldridge, T., Al-Gholmy, M., Srinivasan, B., Anand, R.   +5 more
openaire   +2 more sources

Highly‐Uniform Passive Crossbar Arrays of Resistive Switching Random Access Memory (RRAM) for In‐Memory Computing Applications

Advanced Electronic Materials, EarlyView.
Passive resistive memory arrays promise efficient in‐memory computing but suffer from sneak paths and programming variability. Here, highly uniform 32 × 32 passive RRAM crossbars are programmed with multilevel precision below 3% error and 99.5% yield.
S. Ricci, P. Mannocci, M. Porzani, D. Bridarolli, F. Carletti, M. Farronato, D. Ielmini   +6 more
wiley   +1 more source