期刊：
JOURNAL OF NATURAL PRODUCTS,2024年 ISSN：0163-3864
通讯作者：
Ruan, HL
作者机构：
[Ruan, Han-Li; Xie, Zuo-Ye; Chang, Jin-Ling; Peng, Xiao-Gang; Ruan, HL; Gan, Yu-Tian; Zhou, Yin-Hui] Huazhong Univ Sci & Technol, Tongji Med Coll, Sch Pharm, Hubei Key Lab Nat Med Chem & Resource Evaluat, Wuhan 430030, Peoples R China.;[Gan, Yu-Tian] Xiangyang Hosp Tradit Chinese Med, Xiangyang 441000, Peoples R China.;[Meng, Xianggao] Cent China Normal Univ, Coll Chem, Wuhan 430079, Peoples R China.;[Li, Shu-Ming] Philipps Univ Marburg, Fachbereich Pharm, Inst Pharmazeut Biol & Biotechnol, D-35037 Marburg, Germany.
通讯机构：
[Ruan, HL ] H;Huazhong Univ Sci & Technol, Tongji Med Coll, Sch Pharm, Hubei Key Lab Nat Med Chem & Resource Evaluat, Wuhan 430030, Peoples R China.
摘要：
Ten new (1-10) and nine known (11-19) austocystins, along with four known anthraquinones (20-23), were isolated from the culture of Aspergillus ustus NRRL 5856 by bioactivity-guided fractionation. The structures of the new compounds were elucidated by spectroscopic data analysis, X-ray crystallographic study, the modified Mosher's method, [Rh(2)(OCOCF3)(4)]-induced ECD spectral analysis, and comparison of the experimental ECD spectra with those of the similar analogues. Compounds 1-8 represent the first examples of austocystins with a C-4' oxygenated substitution. The absolute configuration of 1″-hydroxy austocystin D (11) was determined by single-crystal X-ray diffraction and consideration of its biosynthetic origin. Compounds 5, 9, and 11 exhibited significant inhibitory effects against the proliferation of ConA-induced T cells with IC(50) values of 1.1, 1.0, and 0.93 μM, respectively. Furthermore, these compounds suppressed the expression of IL-6 in a dose-dependent manner. Compounds 10-12 and 14 showed pronounced cytotoxicities against MCF-7 with IC(50) values of 3.9, 1.3, 0.46, and 2.3 μM, respectively.
摘要：
Let
$$A\in M_2({\mathbb {Z}})$$
be an expanding integer matrix and
$$D=\{d_1={\textbf{0}},d_2,d_3\}\subset {\mathbb {Z}}^2$$
. It follows from Hutchinson (Indiana Univ Math J 30:713–747, 1981) that the generalized Sierpinski self-affine set
$${\textbf{T}}(A,D)$$
is the unique compact set determined by the pair (A,D) satisfing the set-valued equation
$$A{\textbf{T}}(A,D)=\bigcup _{i=1}^3({\textbf{T}}(A,D)+d_i)$$
. In this paper, we show that Fuglede’s conjecture holds on
$${\textbf{T}}(A,D)$$
, which states that
$${\textbf{T}}(A,D)$$
is a spectral set if and only if
$${\textbf{T}}(A,D)$$
is a translational tile. For the classical Sierpinski self-affine set
$${\textbf{T}}(A,D_{c})$$
with
$$D_{\text {c}}=\{(0,0)^t,(1,0)^t, (0,1)^t\}$$
, a finer characterization of tiling set is given. As an application, we find that the classical Sierpinski self-affine tile
$${\textbf{T}}(A,D_{\text {c}})$$
is suitable for Kolountzakis’ conjecture on product domain. This enriches the results that are now known.
摘要：
Cyberbullying and cyber victimization are widespread problems that impair the physical and mental health of adolescents. To date, the impact of parental phubbing on adolescent cyberbullying and cyber victimization remains underexplored. The current study investigates the relationships between parental phubbing and adolescent cyberbullying and cyber victimization and whether these influence mechanisms work consistently. We recruited 1034 Chinese adolescents aged 12–15 years as a sample and constructed two moderated mediation models to evaluate the relationships among parental phubbing, social anxiety, self-control, cyberbullying, and cyber victimization. The results showed that (1) parental phubbing positively predicted adolescent cyberbullying and cyber victimization; (2) parental phubbing was associated with cyberbullying and cyber victimization among adolescents through the mediating effect of social anxiety; (3) the relationships between parental phubbing and adolescent cyberbullying and cyber victimization and the mediating effects of social anxiety were moderated by self-control; specifically all effects were significant at low self-control and vice versa. The research findings are conducive to informing the risk factors and mechanisms of adolescent cyber violence and further reveal the negative influence of parental phubbing on adolescent development.
期刊：
Green Synthesis and Catalysis,2024年 ISSN：2666-5549
通讯作者：
Long Wang<&wdkj&>Qing-Qing Yang
作者机构：
[Zheng-Wei Wu; Han-Han Kong] College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China;[Yong Wei; Wen-Chao Zhou] Yichang Humanwell Pharmaceutical Co., Ltd., 19 Dalian Road, Yichang 443008, China;Hubei Three Gorges Labratory, Yichang 443007, China;[Liang-Qiu Lu] CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China;[Long Wang; Qing-Qing Yang] College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China<&wdkj&>Hubei Three Gorges Labratory, Yichang 443007, China
通讯机构：
[Long Wang; Qing-Qing Yang] C;College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China<&wdkj&>Hubei Three Gorges Labratory, Yichang 443007, China
关键词：
Visible light;Tetrabromomethane;Molecular oxygen;Photocatalyst- and additive-free;Azaspiro[4,5]trienones
摘要：
A visible-light-induced brominated spirocyclization of N-arylpropiolamides and CBr4 for the synthesis of 3-bromo-azaspiro[4,5]trienones is reported here. This process allows the formation of C–Br, C–C, and C=O bonds in a single reaction via a cascade radical addition/ipso-cyclization/oxidative dearomatization sequence. This protocol also features high functional group tolerance, operational simplicity and the use of molecular oxygen as an oxidant as well as sustainable photocatalyst- and additive-free reaction conditions at room temperature. Meanwhile, the presented straightforward and sustainable strategy has also been applied to the synthesis of several biologically active compounds.
作者：
S. Acharya;D. Adamová;G. Aglieri Rinella;M. Agnello;N. Agrawal;...
期刊：
Journal of High Energy Physics,2024年2024(1):1-31 ISSN：1029-8479
作者机构：
[S. Acharya; V. Barret; N. Bastid; P. Crochet; P. Dupieux; X. Lopez; F. Manso; S. Porteboeuf-Houssais] Université Clermont Auvergne, CNRS/IN2P3, LPC, Clermont-Ferrand, France;[D. Adamová; J. Bielčíková; E. Grecka; A. Kotliarov; F. Krizek; S. Kushpil] Nuclear Physics Institute of the Czech Academy of Sciences, Husinec-Řež, Czech Republic;[G. Aglieri Rinella; A. Alkin; A. Augustinus; K. Barth; L. Betev; P. M. Bond; A. A. Carballo; F. Carnesecchi; S. Chapeland; V. Chibante Barroso; P. Chochula; F. Costa; A. Di Mauro; R. Divià; G. Eulisse; M. B. Ferrer; E. Flatland; U. Fuchs; C. Gargiulo; C. Grigoras; F. Grosa; J. F. Grosse-Oetringhaus; H. Hillemanns; P. Hristov; G. M. Innocenti; A. Junique; A. Kalweit; M. Keil; J. Klein; A. Kluge; P. J. Konopka; K. Krizkova Gajdosova; S. Kundu; M. Lamanna; P. Larionov; E. Laudi; M. Mager; P. Martinengo; A. L. Mazuecos; M. Mazzilli; L. Micheletti; A. Morsch; T. Mrnjavac; L. Musa; J. E. Parkkila; M. Puccio; F. Reidt; W. Riegler; M. V. Rodriguez; D. Rohr; M. H. P. Sas; M. O. Schmidt; J. Schukraft; R. Shahoyan; M. Suljic; A. Tauro; A. Telesca; S. Trogolo; P. Vande Vyvre; B. Volkel; B. von Haller; A. Wegrzynek; S. C. Wenzel; C. Zampolli; N. Zardoshti] European Organization for Nuclear Research (CERN), Geneva, Switzerland;[M. Agnello; A. Balbino; S. Bufalino; M. Ciacco; G. Gioachin; S. Politano] Dipartimento DISAT del Politecnico and Sezione INFN, Turin, Italy;[N. Agrawal; P. Antonioli; F. Cindolo; M. Giacalone; D. Hatzifotiadou; A. Margotti; R. Nania; F. Noferini; R. Preghenella; R. Rath; S. Tripathy] INFN, Sezione di Bologna, Bologna, Italy
摘要：
Measurements of charged-particle production in pp, p–Pb, and Pb–Pb collisions in the toward, away, and transverse regions with the ALICE detector are discussed. These regions are defined event-by-event relative to the azimuthal direction of the charged trigger particle, which is the reconstructed particle with the largest transverse momentum
$$ \left({p}_{\textrm{T}}^{\textrm{trig}}\right) $$
in the range 8 <
$$ {p}_{\textrm{T}}^{\textrm{trig}} $$
< 15 GeV/c. The toward and away regions contain the primary and recoil jets, respectively; both regions are accompanied by the underlying event (UE). In contrast, the transverse region perpendicular to the direction of the trigger particle is dominated by the so-called UE dynamics, and includes also contributions from initial- and final-state radiation. The relative transverse activity classifier,
$$ {R}_{\textrm{T}}={N}_{\textrm{ch}}^{\textrm{T}}/\left\langle {N}_{\textrm{ch}}^{\textrm{T}}\right\rangle $$
, is used to group events according to their UE activity, where
$$ {N}_{\textrm{ch}}^{\textrm{T}} $$
is the charged-particle multiplicity per event in the transverse region and
$$ \left\langle {N}_{\textrm{ch}}^{\textrm{T}}\right\rangle $$
is the mean value over the whole analysed sample. The energy dependence of the RT distributions in pp collisions at
$$ \sqrt{s} $$
= 2.76, 5.02, 7, and 13 TeV is reported, exploring the Koba-Nielsen-Olesen (KNO) scaling properties of the multiplicity distributions. The first measurements of charged-particle pT spectra as a function of RT in the three azimuthal regions in pp, p–Pb, and Pb–Pb collisions at
$$ \sqrt{s_{\textrm{NN}}} $$
= 5.02 TeV are also reported. Data are compared with predictions obtained from the event generators PYTHIA 8 and EPOS LHC. This set of measurements is expected to contribute to the understanding of the origin of collective-like effects in small collision systems (pp and p–Pb).
摘要：
As one of the most widely used disinfectants, active chlorine is synthesized predominantly through electrolysis of saturated sodium chloride solutions, an industrial process known as the chlor-alkali process, with high energy consumption. Seawater is an abundant source of chloride and thus an ideal alternative electrolyte. However, substantial challenges are to be addressed, notably the competing oxygen evolution reaction and progressive anode passivation due to the presence of rich cations in seawater. Here, we show durable and efficient active chlorine electrosynthesis directly from natural seawater with intrinsic turnover frequency and mass activity two orders of magnitude higher than the state of the art. The essential chemistry is an Fe-doped Ti4O7 anode that strengthens the electrophilicity of lattice oxygen to allow for site-selective chloride activation at remarkably lowered kinetic overpotentials relative to the oxygen evolution reaction, while also impeding the precipitation of alkaline earth metal cations on the Ti4O7 surface. A seawater splitting device with an integrated commercial silicon photovoltaic cell delivers an impressive active chlorine production rate of 3.15 mg min-1 for effective simulated ballast water disinfection. This work suggests the possibility to substantially improve the sustainability of the chlor-alkali process without compromising the synthetic performance for the mass production of disinfectants. This work shows a delicate titanium suboxide-based anode design for electrolysis of seawater, delivering selective production of active chlorine for on-site disinfection.
作者机构：
[Yang, Xi-Yan] Yangtze Univ, Sch Phys & Optoelect Engn, Jingzhou 434023, Peoples R China.;[Lai, Xiao-Yu; Tan, Wei-Wei; Yang, Xi-Yan] Hubei Univ Educ, Res Ctr Astron, Wuhan 430205, Peoples R China.;[Tan, Wei-Wei] Cent China Normal Univ, Key Lab Quark & Lepton Phys, Minist Educ, Wuhan 430079, Peoples R China.;[Xu, Ren-Xin] Peking Univ, Sch Phys, Beijing 100871, Peoples R China.;[Xu, Ren-Xin] Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China.
通讯机构：
[Lai, XY ] H;Hubei Univ Educ, Res Ctr Astron, Wuhan 430205, Peoples R China.
关键词：
dense matter;(stars:) pulsars: general;(stars:) gamma-ray burst: general
摘要：
Strangeon stars, which are proposed to describe the nature of pulsar-like compact stars, have passed various observational tests. The maximum mass of a non-rotating strangeon star could be high, which implies that the remnants of binary strangeon star mergers could even be long-lived massive strangeon stars. We study rigidly rotating strangeon stars in the slowly rotating approximation, using the Lennard-Jones model for the equation of state. Rotation can significantly increase the maximum mass of strangeon stars with unchanged baryon numbers, enlarging the mass-range of long-lived strangeon stars. During spin-down after merger, the decrease of radius of the remnant will lead to the release of gravitational energy. Taking into account the efficiency of converting the gravitational energy luminosity to the observed X-ray luminosity, we find that the gravitational energy could provide an alternative energy source for the plateau emission of X-ray afterglow. The fitting results of X-ray plateau emission of some short gamma-ray bursts suggest that the magnetic dipole field strength of the remnants can be much smaller than that of expected when the plateau emission is powered only by spin-down luminosity of magnetars.
作者机构：
[Liu, Sannyuya; Yuan, Xin; Yue, Jieyu; Li, Zhen; Li, Qing; Liu, SNYY; Hu, Tianhui; Chen, Sijing; Sun, Jianwen] Cent China Normal Univ, Natl Engn Res Ctr Educ Big Data, Wuhan 430079, Peoples R China.;[Liu, Sannyuya; Liu, SNYY] Cent China Normal Univ, Natl Engn Res Ctr E Elearning, Wuhan 430079, Peoples R China.
通讯机构：
[Liu, SNYY ; Chen, SJ] C;Cent China Normal Univ, Natl Engn Res Ctr Educ Big Data, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Natl Engn Res Ctr E Elearning, Wuhan 430079, Peoples R China.
摘要：
The purpose of this study was to investigate the frontier, science, and public engagement of educational science research. This paper conducted a systematic literature review of 101 educational science research articles published in Nature and Science in 1982-2021 based on the Web of Science database and analyzed the current status of research in terms of basic publication characteristics, research themes, and research processes. Five research topics were recognized, namely, education policy evaluation and reform, learning mechanisms and learning interventions, science education, educational technology, and education equity. Content of each topic had a distinctive emphasis. Findings revealed that most studies were dominated by empirical research, involving causal relationships between various educational phenomena, diverse range of research subjects, rigorous scientific randomized experiments, and quantitative analysis. We encourage more research on educational science in the future from four feasible directions, namely, developing active learning approaches to promoting effective learning, extending the research subjects and objectives of science education, conducting long-term, large-scale and practice-oriented research, and introducing new research methods into educational research.
作者机构：
[Xie, Hao; Liu, Pengqiang] Cent China Normal Univ, Informat Management Coll, Wuhan, Hubei, Peoples R China.;[Chang, Shuangshuang] Wuchang Univ Technol, Wuhan, Hubei, Peoples R China.;[Lin, Regina Fang-Ying; Lin, RFY] Shenzhen Technol Univ, Ctr Circular Econ, Business Sch, Shenzhen, Guangdong, Peoples R China.;[Lin, Regina Fang-Ying; Lin, RFY] Harbin Inst Technol Shenzhen, Sch Econ & Management, Shenzhen, Peoples R China.
通讯机构：
[Lin, RFY ] S;Shenzhen Technol Univ, Ctr Circular Econ, Business Sch, Shenzhen, Guangdong, Peoples R China.;Harbin Inst Technol Shenzhen, Sch Econ & Management, Shenzhen, Peoples R China.
关键词：
Natural resources;GDP;Access to clean fuel technology;R&D expenditures;Asian economies
摘要：
This study examines the relationship between natural resource rents and economic growth in Asian economies from 1990 to 2021, considering the impact of electricity generated from renewable sources, access to clean fuel technology, and research and development expenditures. The study uses time series data and employs the Bayer-Hanck cointegration analysis to examine long-term cointegration, along with least squares with known structural breaks for the main estimates and robust least squares method for the analysis. The findings suggest that access to clean fuel technology, natural gas rents, and oil rents significantly impact economic expansion without renewable electricity, while mineral rents have insignificant results. Including electricity from renewable energy, access to clean fuel technology, oil rents, and research and development expenditures suggest a positive association with economic growth. In contrast, natural gas rents and mineral rents produce negative results. The study concludes that there is an asymmetric relationship between natural resources and economic growth in the studied Asian economies. The study highlights the importance of effectively utilizing natural resources and promoting renewable energy in Asian economies with natural resource wealth to promote economic growth.
作者机构：
[Wan, Qing-Yu; Li, Min; Shu, Wen-Ming; Lin, Ri-Lan; Yu, Wei-Chu; Peng, Yan-Qing] Yangtze Univ, Coll Chem & Environm Engn, Hubei Engn Res Ctr Clean Prod & Pollut Control Oil, Jingzhou 434023, Peoples R China.;[Wu, An-Xin] Cent China Normal Univ, Int Joint Res Ctr Intelligent Biosensor Technol &, Natl Key Lab Green Pesticide, Wuhan 430079, Peoples R China.
通讯机构：
[Shu, WM; Yu, WC ] Y;Yangtze Univ, Coll Chem & Environm Engn, Hubei Engn Res Ctr Clean Prod & Pollut Control Oil, Jingzhou 434023, Peoples R China.
摘要：
An iodine-mediated cyclization has been developed to 4-aryl-NH-1,2,3-triazoles, with p-toluenesulfonyl hydrazide and sulfamic acid used as nitrogen sources. Sulfamic acid plays a crucial role in this reaction by both acting as a substrate and providing an acidic environment. This reaction offers a metal- and azide-free strategy to access NH-1,2,3-triazoles.
作者机构：
[Quan Lu] School of Economics and Management, Hubei University of Technology, Wuhan 430068, China;[Xiaoxiao Chen] School of Information Management, Central China Normal University, Wuhan 430079, China;Hubei Electronic Commerce Research Center, Wuhan 430079, China;Author to whom correspondence should be addressed.;[Yizhou Wang] School of Information Management, Central China Normal University, Wuhan 430079, China<&wdkj&>Author to whom correspondence should be addressed.
通讯机构：
[Yizhou Wang] S;School of Information Management, Central China Normal University, Wuhan 430079, China<&wdkj&>Author to whom correspondence should be addressed.
关键词：
cyberloafing;role stress;conservation of resources theory;cognitive–affective personality systems theory;PLS-SEM
摘要：
This investigation delves into the pervasive yet insufficiently examined phenomenon of “cyberloafing”, characterized by employees engaging in non-work-related internet activities during office hours. Despite its frequent occurrence in contemporary work environments, the fundamental mechanisms underpinning cyberloafing remain largely uncharted. This study uses the conservation of resources theory and the cognitive–affective personality system framework to demystify the relationship between role stress and cyberloafing. We developed a dual-path model to assess the mediating roles of perceived insider status and emotional exhaustion. Employing SPSS and Smart PLS for data analysis, our research sampled 210 corporate employees. The findings reveal that role stress predicts perceived insider status and emotional exhaustion significantly. Notably, while perceived insider status negatively correlates with cyberloafing, emotional exhaustion shows a positive correlation. These factors mediate the relationship between role stress and cyberloafing, underscoring a multifaceted dynamic. Our results provide new theoretical insights into the mechanisms of employee counterproductive behavior, specifically in the context of cyberloafing, and broaden our understanding of its determinants. This study illuminates theoretical nuances and offers practical implications for managerial strategies and future scholarly inquiries into organizational behavior.
作者机构：
[Yi, Cong; Yi, C; Pu, Shi] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China.;[Wu, Xiang -Yu; Qin, Guang-You] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China.;[Wu, Xiang -Yu; Qin, Guang-You] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Hubei, Peoples R China.;[Yang, Di-Lun] Acad Sinica, Inst Phys, Taipei 11529, Taiwan.;[Gao, Jian-Hua] Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Envi, Weihai 264209, Shandong, Peoples R China.
通讯机构：
[Yi, C ] U;Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China.
摘要：
We investigate the azimuthal angle dependent local hydrodynamic helicity polarization of Λ hyperons, defined as the projection of the spin polarization vector along the directions of particle momenta, at BNL Relativistic Heavy Ion Collider beam energy scan energies by utilizing the relativistic ( 3+1 )D CLVisc hydrodynamics framework with SMASH initial conditions. As opposed to local spin polarization at high energy collisions, our hydrodynamic simulations demonstrate that the azimuthal angle dependent helicity polarization induced by the kinetic vorticity dominates over other contributions at intermediate and low collision energies. Our findings provide an opportunity to probe the fine structure of local kinetic vorticity as a function of azimuthal angle at intermediate and low collision energies by mapping our predictions to the future measurements in experiments.
