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艺术品鉴 2024年第6期 92-97页

作者： Marian ang 不详

青铜器是中国文明起源的重要标志,跨越三千年,象征中国从原始时代迈向文明。本文趁“天人之际”开拍期间,研究古代青铜器在礼制和日常生活中扮演的角色。“青铜的耐用性使其成为中国早期艺术所有历史和现代理解的中心”。——克雷格·... 详细信息

青铜器是中国文明起源的重要标志,跨越三千年,象征中国从原始时代迈向文明。本文趁“天人之际”开拍期间,研究古代青铜器在礼制和日常生活中扮演的角色。“青铜的耐用性使其成为中国早期艺术所有历史和现代理解的中心”。——克雷格·克鲁纳斯。

关键词：古代青铜器吉金中国文明起源天人之际克雷格文化与社会耐用性礼制

Recent Advances in the Synthesis and Polymerization of New cO_(2)-Based cyclic

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chinese Journal of chemistry 2024年第4期42卷 430-443页

作者： Matteo lanzi Arjan w.Kleij Institute of chemical Research of catalonia(IcIQ) The Barcelona Institute of Science and Technology(BIST)Av.Països Catalans 1643007 TarragonaSpain catalan Institute of Research and Advanced Studies(IcREA) Pg.Lluís Companys 2308010 BarcelonaSpain

carbon dioxide can be converted into functional heterocycles known as cyclic carbonates,whose recent reactivity has been expanded towards the formation of tailor-made engineering *** minireview gives an overview of the most topical developments in this area with a special focus on the synthetic methods employed to prepare these cO_(2)based *** addition,their application potential in the area of polymer science using a variety of polymerization techniques is discussed that have in common the ring-opening of the carbonate *** perspectives are provided that provide impetus for the scientific communities aligning research to the use of sustainable processes for polymers from recyclable carbon sources such as cO_(2).

关键词： carbon dioxide cyclic carbonates Functional macromolecules Heterocycles Polycarbonates Recycling Ring opening polymerization

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儒家教育主体间性思想及其当代启示

江汉论坛 2024年第7期 85-90页

作者：涂一昂湖北省社会科学院马克思主义研究所湖北武汉430077

在儒家教育主体间性思想中,人作为主体从不孤立存在,而是借助“仁”的情感价值牵引,在“礼”的交往规则调适下,与其他主体或认知对象共同构成一个相互尊重、共生共存的道德认知关系网络,达到万物并育、和合统一。透过其中蕴含的交互伦... 详细信息

在儒家教育主体间性思想中,人作为主体从不孤立存在,而是借助“仁”的情感价值牵引,在“礼”的交往规则调适下,与其他主体或认知对象共同构成一个相互尊重、共生共存的道德认知关系网络,达到万物并育、和合统一。透过其中蕴含的交互伦理性和人文性,我们可以一窥中华民族独特深厚的精神气质和德性基质,在现实中可用以完善教育理念、重塑教育伦理和充盈教育生态。在“两个结合”的不断引领之下,这种主体间性思想亦能迸发更多的理论潜力,开拓更广阔的应用空间。

关键词：主体间性儒家思想教育主体马克思主义

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A facile strategy for tuning the density of surface-grafted biomolecules for melt extrusion-based additive manufacturing applications

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Bio-Design and Manufacturing 2024年第3期7卷 277-291页

作者： I.A.O.Beeren G.Dos Santos P.J.Dijkstra c.Mota J.Bauer H.Ferreira Rui l.Reis N.Neves S.camarero-Espinosa M.B.Baker l.Moroni Department of complex Tissue Regeneration MERLN Institute for Technology-Inspired Regenerative MedicineMaastricht University6229 ER MaastrichtThe Netherlands 3B’s Research Group I3Bs–Research Institute on BiomaterialsBiodegradables and BiomimeticsHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineUniversity of MinhoAveParkZona Industrial da Gandra4805-017 BarcoGuimarãesPortugal IcVS/3B’s-PT Government Associate laboratory 4806-909 Braga/GuimarãesPortugal POlYMAT University of the Basque Country UPV/EHU20018 Donostia/San SebastiánSpain IKERBASQUE Basque Foundation for Science48009 BilbaoSpain

Melt extrusion-based additive manufacturing(ME-AM)is a promising technique to fabricate porous scaffolds for tissue engi-neering ***,most synthetic semicrystalline polymers do not possess the intrinsic biological activity required to control cell *** of biomolecules on polymeric surfaces of AM scaffolds enhances the bioactivity of a construct;however,there are limited strategies available to control the surface ***,we report a strategy to tune the surface density of bioactive groups by blending a low molecular weight poly(ε-caprolactone)5k(Pcl5k)containing orthogonally reactive azide groups with an unfunctionalized high molecular weight Pcl75k at different *** porous three-dimensional(3D)scaf-folds were then fabricated using a high weight percentage(75 wt.%)of the low molecular weight Pcl *** a proof-of-concept test,we prepared films of three different mass ratios of low and high molecular weight polymers with a thermopress and reacted with an alkynated fluorescent model compound on the surface,yielding a density of 201-561 pmol/cm^(2).Subsequently,a bone morphogenetic protein 2(BMP-2)-derived peptide was grafted onto the films comprising different blend compositions,and the effect of peptide surface density on the osteogenic differentiation of human mesenchymal stromal cells(hMScs)was *** two weeks of culturing in a basic medium,cells expressed higher levels of BMP receptor II(BMPRII)on films with the conjugated *** addition,we found that alkaline phosphatase activity was only significantly enhanced on films contain-ing the highest peptide density(i.e.,561 pmol/cm^(2)),indicating the importance of the surface *** together,these results emphasize that the density of surface peptides on cell differentiation must be considered at the cell-material ***,we have presented a viable strategy for ME-AM community that desires to tune the bulk and surface functionality via blending of(m

关键词： Additive manufacturing Blending Surface functionalization Surface density click chemistry Human

Rational design of AgGaS/ZnS/ZnS quantum dots with a near-unity photoluminescence quantum yield via double shelling scheme

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Journal of Materials Science & Technology 2024年第2期169卷 235-242页

作者： H.X.lu H.liu Z.Z.Fu Y.Y.chen H.Q.Dai Z.Hu w.l.Zhang R.Q.Guo Institute for Electric light Sources School of Information Science and TechnologyFudan UniversityShanghai 200433China Institute of Future lighting Academy for Engineering and TechnologyFudan UniversityShanghai 200433China Yiwu Research Institute of Fudan University YiwuZhejiang 322000China Zhongshan-Fudan Joint Innovation center Zhongshan 528437China

In this study,a two-step method was used to synthesize highly luminescent AgGaS/ZnS/ZnS quantum dots(QDs).In the first step,an inner ZnS shell was formed via a one-pot method,which resulted in a smaller lattice mismatch between the AgGaS core and the outer ZnS shell,thereby facilitating the formation of a thick outer *** the two-step shelling process,the synthesized AgGaS/ZnS/ZnS QDs showed an excellent photoluminescence quantum yield(PlQY)of 96.4%with a peak wavelength of 508 nm,repre-senting the highest PlQY reported thus far for AgGaS ***,the effect of halogen ions in Zn precursors on the shelling process was *** was proposed that the capacity of halogen ions to coordinate with the QDs influenced the balance between Zn cation diffusion and ZnS shelling ***,the ZnS shelling reaction was dominant when Zncl_(2)was employed,while Zn cation diffusion was the dominant process under the I^(−)-rich *** work provides insights into the interfacial restructuring during the ZnS shelling and offers a clear map for the tailored synthesis of core/shell QDs.

关键词： AgGaS Quantum dots Photoluminescence core/shell Alloyed core/shell interface

characteristics and close-range exploration methods of near- Earth asteroid 2016HO_(3)

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Astronomical Techniques and Instruments 2024年第1期1卷 42-51页

作者： He Zhang Fei li linzhi Meng Fuming Zeng Xiaoyu Jia Yu’ang liu Beijing Institute of Spacecraft System Engineering Beijing 100094China

The characteristics of asteroids are vital parameters for planning asteroid exploration *** characteristics have been explored in close range for some typical asteroids,and are summarized in the *** allows estimates of the characteristics of asteroid 2016HO_(3),the target of the first chinese asteroid exploration mission,Tianwen *** obtain 80 characteristic parameters in 9 categories and analyze their impacts on the *** comparing three close-range exploration modes,we provide advantages and disadvantages of each,and propose suitable methods for the exploration of 2016HO_(3).Owing to the weak gravity and small size of 2016HO_(3),a combination of multiple hovering positions and active orbiting is recommended for scientific exploration.

关键词： Near-Earth asteroid 2016HO_(3) Tianwen 2 close-range exploration characteristics

Effect of Eu3+,Bi3+,and li+ doping on luminescent property of GdNbO4

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Journal of Rare Earths 2024年第1期42卷 66-75页

作者： S.w.wi Y.S.lee Department of Physics and Integrative Institute of Basic Sciences Soongsil University

we investigated the emission properties of Eu3+-doped GdNbO4-based oxide phosphors,aiming at improving the Eu3+emission by codoping of Bi3+and li+.Eu3+singly doped,Eu3+and Bi3+doubly doped,and Eu3+,Bi3+,and li+triply doped GdNbO4were prepared using a high-temperature solid-state reaction *** red-orange emissions from Eu3+in the singly doped samples are significantly improved by the codoping of Bi3+,mainly due to the energy transfer from Bi3+to Eu3+.The additional codoping of li+is found to increase the Eu3+emission *** improvement might be attributed to the increase in the photoluminescent quantum yield originating from larger grain sizes and better crystallinity.A detailed analysis of the X-ray diffraction pattern and the asymmetric ratio estimated from the photoluminescence spectra show that the local lattice environment around Eu3+in GdNbO4does not change significantly with the codoping of Bi3+and li+.Our results indicate that li+doping is a promising way to improve the emission properties of rare-earth ion-doped GdNbO4phosphors.

关键词： Eu 3+ GdNbO 4 codoping of li + Photoluminescence Sensitizer Rare earths

leptin Modulates the Differentiation of Keratinocytes via Autophagy in Psoriasis Patients with Metabolic Syndrome

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International Journal of Dermatology and Venereology 2024年第3期7卷 121-130页

作者： Song c.-H. wang R. Zhao Z.-K. Zhang Y. Sun J. Zhang X. Ding X.-Y. Bai J. liang X.-Q. wei X.-J. liu X.-l. Yang T. liang X.-l. li c.-X. lin B.-w. Department of Dermatology PLA General Hospital Beijing 100853 China Department of clinical laboratory PLA General Hospital Beijing 100853 China Department of Dermatology Southern Medical University Guangdong Guangzhou 510515 China

Objective: Psoriasis is associated with a high prevalence of metabolic syndrome (MS), and patients with concomitant psoriasis and MS are more severely affected and less responsive to treatment. However, the molecular mechanisms behind these effects are unknown. Recent studies have shown that leptin may serve as a molecular link between psoriasis and MS, suggesting that high leptin concentrations may exacerbate psoriasis. However, the molecular mechanism of this effect is still unclear. we aimed to investigate the effect of leptin on autophagy in patients with psoriasis. Methods: From January 2021 to June 2022 in PlA General Hospital, we enrolled 51 patients with psoriasis, including 21 patients with MS and 30 without MS, and 30 healthy controls who had undergone nevus surgery. we measured the epidermal leptin, P62, and lc3B concentrations of patients by immunohistochemistry, and measured the serum leptin concentration by enzyme-linked immunosorbent assay. we then performed correlation analyses to compare these proteins' concentrations between patients with concomitant psoriasis and MS, patients with psoriasis alone, and healthy control groups. Additionally, we performed western blotting after in vitro culture of HacaT cells with different concentrations of leptin and measured the expression levels of the autophagy markers Beclin1, lc3B, and P62; the differentiation markers K10, K16, and K17; and PI3K/AKT/mTOR signaling pathway-related proteins of Hacat cells. Next, we transfected ATG5 into HacaT cells to revert autophagy and used the specific PI3K inhibitor lY294002 to block PI3K/AKT/mTOR signaling. The expression levels of K10, K16, and K17 of Hacat cells were again measured. One-way analysis of variance was used for the comparison of means of multiple samples, and lSD-t post hoc test was used for comparison between the 2 groups. The counting data were analyzed by the chi-square test. correlations were evaluated by Pearson correlation analysis. Results: The serum l

关键词： autophagy keratinocyte differentiation leptin metabolic syndrome PI3K/AKT/mTOR psoriasis signal pathway

A 256 Gb/s electronic−photonic monolithically integrated transceiver in 45 nm cMOS

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Journal of Semiconductors 2024年第7期45卷 7-10页

作者： ang li Qianli Ma Yujun Xie Yongliang Xiong Yingjie Ma Han liu Ye Jin Menghan Yang Guike li Haoran Yin Minye Zhu Yang Qu Peng wang Daofa wang wei li liyuan liu Nan Qi Ming li Key laboratory of Optoelectronic Materials and Devices Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Institute of Semiconductors Chinese Academy of SciencesBeijing 100083China center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100190China School of Electronic Electrical and Communication EngineeringUniversity of Chinese Academy of SciencesBeijing 100049China

with the explosive development of artificial intelligence(AI),machine learning(Ml),and high-performance comput-ing(HPc),the ever-growing data movement is asking for high density interconnects with higher bandwidth(Bw),lower power and lower latency[1−3].The optical I/O leverages silicon photonic(SiPh)technology to enable high-density large-scale integrated photonics.

关键词： Gb/s transceiver monolithic

4 x 112 Gb/s hybrid integrated silicon receiver based on photonic-electronic co-design

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cHINESE OPTIcS lETTERS 2024年第8期22卷 082501-082501页

作者： Jin, Ye Xie, Yujun Zhang, Zhihan lu, Donglai Yang, Menghan li, ang Meng, Xiangyan Qu, Yang li, leliang Shi, Nuannuan li, wei Zhu, Ninghua Qi, Nan li, Ming chinese Acad Sci Inst Semicond Key Lab Optoelect Mat & Devices Beijing 100083 Peoples R China Univ chinese Acad Sci Ctr Mat Sci & Optoelect Engn Beijing 100190 Peoples R China Univ chinese Acad Sci Sch Elect Elect & Commun Engn Beijing 100049 Peoples R China chinese Acad Sci Inst Semicond Beijing 100083 Peoples R China Peng cheng lab Shenzhen 518055 Peoples R China

A 4 x 112 Gb/s hybrid-integrated optical receiver is demonstrated based on the silicon-photonic vertical p-i-n photodetector and silicon-germanium transimpedance amplifier. we propose a photonic-electronic co-design technique to optimize both the device-level and system-level performance, based on the end-to-end equivalent circuit model of the receiver. continuous-time linear equalization and shunt peaking are employed to enhance the frequency response. Experimental results reveal that the optical-to-electrical 3-dB bandwidth of the receiver is 48 GHz. clear open NRZ eye diagrams at 56 Gb/s and PAM-4 eye diagrams at 112 Gb/s are achieved without an equalizer in the oscilloscope. The measured bit error rates for 56 Gb/s in NRZ and 112 Gb/s in PAM-4 reach 1 x 10 -12 and 2.4 x 10-4 -4 (KP4-FEc: forward error correction) thresholds under -4 dBm input power, respectively. Furthermore, the proposed receiver boasts a power consumption of approximately 2.2 pJ/bit, indicating an energy efficient solution for data center traffic growth.

关键词： optical receiver silicon photonics hybrid integration co-design OPTIcAl REcEIVER PAM-4