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Jan 8, 2025 | 
dx.doi.org | Meng Liu |Yue Zhao
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Jan 7, 2025 | 
tandfonline.com | Yu Chen |Qingxian Zhao |Meng Liu |Guojie Ma
ABSTRACTSocially assistive robots (SARs) are increasingly recognized for their potential in helping older adults age in place. Effectively meeting the diverse needs of older adults requires a proper classification of SARs’ functions. However, existing function categories are primarily proposed from the perspective of researchers, rarely from older adults themselves. This study addresses this gap by employing a user-centered design approach to explore how older adults classify SARs’ functions.
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Sep 20, 2024 | 
mdpi.com | Meng Liu |Xuan Zheng
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
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Sep 3, 2024 | 
cybersecurityasia.net | Meng Liu
by Meng Liu, Senior Analyst, Forrester ResearchMuch has changed since I last analysed the fraud management landscape in the Asia Pacific back in 2022. The persistence of the digital era has transformed digital businesses, making fraud attacks ever-present. In fact, APAC is suffering more than most regions, with its fraud attack rate above the global average.
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Aug 29, 2024 | 
onlinelibrary.wiley.com | Meng Liu |Lei Chen |Jin Liu |Tian Zhang
Corresponding Author Lei Chen School of Electronic and Information Engineering, Xi'an Technological University, Xi'an, China Correspondence Lei Chen, School of Electronic and Information Engineering, Xi'an Technological University, 710021 Xi'an, China. Email: [email protected] for more papers by this author
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Jun 7, 2024 | 
nature.com | Meng Liu |Anna T. Trugman |Josep Peñuelas
AbstractForests are a major terrestrial carbon sink, but the increasing frequency and intensity of climate-driven disturbances such as droughts, fires and biotic agent outbreaks is threatening carbon uptake and sequestration. Determining how climate-driven disturbances may alter the capacity of forest carbon sinks in a changing climate is crucial.
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Mar 14, 2024 | 
4spepublications.onlinelibrary.wiley.com | Meng Liu |Optoelectronics Engineering |Zhaozhu Zhang
Corresponding Author Zhaozhu Zhang State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China Correspondence Zhaozhu Zhang, State Key Laboratory of...
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Jan 19, 2024 | 
opg.optica.org | Huifang Ma |Xinyu Lv |Kun Wang |Meng Liu
An electromagnetic wavefront can be flexibly manipulated by discretephase coding on the coding unit. In this paper, we designed two codingmetasurfaces with 1-bit and 3-bit based on active tuning of Diracsemimetals by controlling the Fermi level (${E_F}$) with an external polarizationvoltage. The size and structure of the metasurface remain unchangedwith this strategy. Both designs were found to be dynamically tunable.
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Oct 12, 2023 | 
dx.doi.org | Hai Lu |Meng Liu |Xinlong Zhang
RETURN TO ARTICLES ASAPEnergy, Environmenta...Energy, Environmental, and Catalysis ApplicationsNEXT Hai Lu School of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China , Meng Liu School of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China , Xinlong Zhang School of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China , Linqing Chang School of Materials...
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Aug 7, 2023 | 
nature.com | Yan Wu |Pengfei Li |Meng Liu |Narayan Bhat |Hongkuan Fan
The damaging effects of sleep deprivation (SD) on brain parenchyma have been extensively studied. However, the specific influence of SD on brain pericytes, a primary component of the blood–brain barrier (BBB) and the neurovascular unit (NVU), is still unclear. The present study examined how acute or repeated SD impairs brain pericytes by measuring the cerebrospinal fluid (CSF) levels of soluble platelet-derived growth factor receptor beta (sPDGFRβ) and quantifying pericyte density in the cortex, hippocampus, and subcortical area of the PDGFRβ-P2A-CreERT2/tdTomato mice, which predominantly express the reporter tdTomato in vascular pericytes. Our results showed that a one-time 4 h SD did not significantly change the CSF sPDGFRβ level. In contrast, repeated SD (4 h/day for 10 consecutive days) significantly elevated the CSF sPDGFRβ level, implying explicit pericyte damages due to repeated SD. Furthermore, repeated SD significantly decreased the pericyte densities in the cortex and hippocampus, though the pericyte apoptosis status remained unchanged as measured with Annexin V-affinity assay and active Caspase-3 staining. These results suggest that repeated SD causes brain pericyte damage and loss via non-apoptosis pathways. These changes to pericytes may contribute to SD-induced BBB and NVU dysfunctions. The reversibility of this process implies that sleep improvement may have a protective effect on brain pericytes.
