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Effects of freeze-thaw cycles on sandstone in sunny and shady slopes

Journal of Rock Mechanics and Geotechnical Engineering 2024年第7期16卷 2503-2515页

作者： dian.Xiao Xiaoyan Zhao Corrado Fidelibus Roberto Tomás Qiu Lu Hongwei Liu Academy of Railway sciences Corporation Limited BeijingChina Faculty of Geosciences and Environmental Engineering Southwest Jiaotong UniversityChengduChina Department of Civil Engineering University of AlicanteAlicanteSpain Department of Innovation Engineering University of SalentoLecceItaly Department of Earth and Environmental sciences University of Milano BicoccaMilanItaly

A growing rock engineering activity in cold regions is facing the threat of freeze-thaw(FT)weathering,especially in high mountains where the sunny-shady slope effects strongly control the difference in weathering behavior of *** this paper,an investigation of the degradation of petrophysical characteristics of sandstone specimens subjected to FT cycle tests to simulate the sunny-shady slope effects is *** this aim,non-destructive and repeatable testing techniques including weight,ultrasonic waves,and nuclear magnetic resonance methods on standard specimens were *** the sunny slope specimens,accompanied by the enlargement of small pores,100 FT cycles caused a significant decrease in P-wave velocity with an average of 23%,but a consistent rise of 0.18%in mass loss,34%in porosity,67%in pore geometrical mean radius,and a remarkable 14.5-fold increase in ***,slight changes with some abnormal trends in physical parameters of the shady slope specimens were observed during FT cycling,which can be attributed to superficial granular disaggregation and pore throat *** shocks enhance rock weathering on sunny slopes during FT cycles,while FT weathering on shady slopes is restricted to the small pores and the superficial *** two factors are primarily responsible for the differences in FT weathering intensity between sunny and shady *** conclusions derived from the interpretation of the experimental results may provide theoretical guidance for the design of slope-failure prevention measures and the selection of transportation routes in cold mountainous regions.

关键词： sunny-shady slope Freeze and thaw Pore structure Tight rocks Talus slope Cold regions

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Global stability of a Viral Infection Model with Defectively Infected Cells and Latent Age

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Chinese Annals of Mathematics,series B 2024年第4期45卷 555-572页

作者： Jianquan LI Yuming CheN Peijun ZHANG dian.ZHANG school of Computer science Xijing University Department of Mathematics Wilfrid Laurier University Xi'an Key Laboratory of Human-Machine Integration and Control Technology for Intelligent Rehabilitation Xijing University Equal contributor.Department of Immunology Xi'an Medical University

The authors propose and analyze a viral infection model with defectively infected cells and age of the latently infected cells. The existence of steady states is determined by the basic reproduction number of virus. With the Lyapunov's direct method, they establish a threshold dynamics of the model with the basic reproduction number of virus as the threshold parameter. To achieve it, a novel procedure is proposed. Its novelties are two-folded. On one hand, the coefficients involved in the specific forms of the used Lyapunov functionals for the two feasible steady states are determined by the same set of inequalities. On the other hand, for the infection steady state, a new approach is proposed to check whether the derivative of the Lyapunov functional candidate along solutions is negative(semi-)definite or not. This procedure not only simplifies the analysis but also exhibits the relationship between the two Lyapunov functionals for the two feasible steady states. Moreover, the procedure is expected to be applicable for other similar models.

关键词： Age structure Basic reproduction number Equilibrium Global stability Lyapunov direct method Viral infection model

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Digital generation of super-Gaussian perfect vortex beams via wavefront shaping with globally adaptive feedback

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High Power Laser science and Engineering 2024年第1期12卷 42-51页

作者： Rui Ma Ke Hai Luo Jing song he Wei Li Zhang dian.Yuan Fan Anderson s.L.Gomes Jun Liu International Collaborative Laboratory of 2D Materials for Optoelectronics science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhenChina Institute for Advanced study Shenzhen UniversityShenzhenChina Fiber Optics Research Centre School of Information and Communication EngineeringUniversity of Electronic Science and Technology of ChinaChengduChina Departamento de Física Universidade Federal de PernambucoRecife-PEBrazil

High-intensity vortex beams with tunable topological charges and low coherence are highly demanded in applications such as inertial confinement fusion(ICF) and optical communication. However, traditional optical vortices featuring nonuniform intensity distributions are dramatically restricted in application scenarios that require a high-intensity vortex beam owing to their ineffective amplification resulting from the intensity-dependent nonlinear effect. here, a low-coherence perfect vortex beam(PVB) with a topological charge as high as 140 is realized based on the super-pixel wavefront-shaping technique. More importantly, a globally adaptive feedback algorithm(GAFA) is proposed to efficiently suppress the original intensity fluctuation and achieve a flat-top PVB with dramatically reduced beam speckle contrast. The GAFA-based flat-top PVB generation method can pave the way for high-intensity vortex beam generation,which is crucial for potential applications in ICF, laser processing, optical communication and optical trapping.

关键词： digital micromirror device flat-top beam orbital angular momentum perfect vortex beam random fiber laser

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Frontiers of Nursing 2024年第1期11卷 111-117页

作者： dian.Hudiyawati Kartinah Afidatul Mujannidah Department of Medical surgical Nursing School of NursingUniversitas Muhammadiyah SurakartaJawa Tengah 57169Indonesia Department of Geriatic Nursing School of NursingUniversitas Muhammadiyah SurakartaJawa Tengah 57169Indonesia Department of Nursing School of NursingUniversitas Muhammadiyah SurakartaJawa Tengah 57169Indonesia

Objective:To determine factors that affect the health-related quality of life(HRQOL)of congestive heart failure(CHF)patients with preserved and reduced ejection ***:A cross-sectional study design was used for this *** stratified random sampling was applied for each *** was measured with the Minnesota Living with hear t Failure *** data were analyzed using chi-square,spearman's correlation analysis,and independent ***:A number of 67 respondents participated in the recent *** total mean scores of HRQOL were significantly different(P=0.001)between heart failure(HF)patients with reduced and preserved ejection fractions,41.07±7.54 and 54.97±4.36,*** related with the physical(mean±standard deviation[sD]=10.4±2.14;t=-10.08,95%CI=-12.46 to-8.34;P-value=0.001)and psychological(mean±sD=3.5±0.5;t=-6.68,95%CI=-4.55 to-2.45;P-value=0.001)*** correlation was found between age(r=-0.898,Psses(r=-0.858,Psupport(r=0.927,Psions:HRQOL in HF patients with reduced ejection fraction was higher than in those with preserved ejection *** suppor t is a fur ther determinant factor that has a positive correlation to the Qo L.

关键词： ejection fraction family support heart failure quality of life social support

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superatom-assembled boranes,carboranes,and low-dimensional boron nanomaterials based on aromatic icosahedral B_(12)and C_(2)B_(10)

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Nano Research 2024年第7期17卷 6734-6740页

作者： Qiao-Qiao Yan Yan-Fang Wei Qiang Chen Yue-Wen Mu si-dian.Li Institute of Molecular science Shanxi UniversityTaiyuan 030006China

Using the experimentally known aromatic icosahedral superatoms I_(h)B_(12)H_(12)2−and D_(5d)1,12-C_(2)B_(10)H_(12)as building blocks and based on extensive density functional theory calculations,we predict herein a series of core–shell superpolyhedral boranes and carboranes in a bottom-up approach,including the high-symmetry Th B_(12)@B_(152)H_(72)2−(2),C2h C_(2)B_(10)@B_(152)H_(72)(3),D_(3d)B_(12)@B_(144)H_(66)(4),I_(h)B_(12)@C_(24)B_(12)0H_(72)2−(6),and D_(5d)C_(2)B_(10)@C_(24)B_(12)0H_(72)(7).More interestingly,the superatom-assembled linear D2h B_(36)H_(32)^(2−)(8),close-packed planar D_(3d)B_(84)H_(60)^(2−)(10),and nearly close-packed core−shell D_(3d)B_(12)@B144H_(6)6(4)can be extended periodically to form the one-dimensional(1D)α-rhombohedral borane nanowire B_(12)H_(10)(Pmmm)(9),two-dimensional(2D)α-rhombohedral monolayer borophane B_(12)H_(6)(P m1)(11),and the experimentally known three-dimensional(3D)α-rhombohedral boron(R m)(12)which can be viewed as an assembly of the monolayer B_(12)H_(6)(11)staggered in vertical direction,setting up a bottom-up strategy to form low-dimensional boron-based nanomaterials from their borane“seeds”via partial or complete *** bonding analyses indicate that the high stability of these nanostructures originates from the spherical aromaticity of their icosahedral B_(12)or C_(2)B_(10)structural units which possess the universal skeleton electronic configuration of 1s21P61D101F8 following the Wade’s n+1 *** infrared(IR)and Raman spectra of the most-concerned neutral B_(12)@B144H_(6)6(4)and C_(2)B_(10)@C_(24)B_(12)0H_(72)(7)are computationally simulated to facilitate their experimental characterizations.

关键词： superatom-assembling bottom-up approach density functional theory superpolyhedral boranes superpolyhedral carboranes borophanes

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The impact of the Rural Minimum Living standard Guarantee(Rural Dibao)Program on child nutrition outcomes

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Journal of Integrative Agriculture 2024年第2期23卷 444-456页

作者： dian.Chen Xiangming Fang Yu Chen Xiaodong Zheng Zhuo Chen Rodney B.W.smith Academy of Global Food Economics and Policy China Agricultural UniversityBeijing 100083China school of Public health Georgia State UniversityAtlanta 30303USA school of Economics Zhejiang Gongshang UniversityHangzhou 310018China College of Public health University of GeorgiaAthens 30602USA Department of Applied Economics University of MinnesotaSaint Paul 55108USA

The Rural Minimum Living standard Guarantee(Rural Dibao)is an important unconditional cash transfer program to alleviate poverty in rural *** the importance of children’s nutrition in breaking poverty cycles,little is known about the impact of Rural Dibao on child nutrition *** China Family Panel studies(CFPs),this paper examines the effects of Rural Dibao on child nutrition outcomes and investigates potential pathways and heterogeneous *** exploit propensity score matching and difference-in-differences techniques to evaluate the effects of the Rural Dibao program on child nutrition *** results suggest that Rural Dibao significantly impacts the nutrition outcomes of children up to 15 years of ***,our results suggest that Rural Dibao improves child height-to-age z-scores by 1.05 standard deviations and lowers the probability of stunting by 11.9 percentage *** analyses suggest that increased protein intake is the main pathway through which Rural Dibao participation contributes to better nutrition *** also find that the effect of the program is more pronounced among girls,children who are non-left-behind or live with highly educated mothers,and those from low-income families and poor *** findings suggest that Rural Dibao participation helps improve child nutrition outcomes through improving diet quality.

关键词： Rural Minimum Living standard Guarantee nutrition height-to-age z-scores stunting rural China

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structural,^(40)Ar/^(39)Ar Geochronological and Rheological Feature Analysis of the Guoxuepu shear Zone:Indications for the Jitang Metamorphic Complex in the Northern Lancangjiang Zone

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Acta Geologica sinica(English Edition) 2024年第1期98卷 32-49页

作者： FENG Yipeng WANG Genhou WANG shulai LI dian.WANG Huan LU Yang LIU Han ZHANG Peilie Beijing Institute of Geology for Mineral Resources Co. Ltd.Beijing 100012China school of Earth sciences and Resources China University of Geosciences(Beijing)Beijing 100083China College of Earth sciences Chengdu University of TechnologyChengdu 610059China Rock Analysis Laboratory Regional Geology Survey Institute of Hebei ProvinceLangfangHebei 065099China Chengdu Center China Geology SurveyChengdu 610081China

The Jitang metamorphic complex is key to studying the tectonic evolution of the Northern Lancangjiang *** structural-lithological mapping,structural analysis and laboratory testing,the composition of the Jitang metamorphic complex was *** macro-and microstructural analyses of the ductile detachment shear zone(Guoxuepu ductile shear zone,2–4 km wide)between the metamorphic complex and the overlying sedimentary cap show that the shear sense of the ductile shear zones is *** presence of various deformation features and quartz C-axis electron backscatter diffraction(EBsD)fabric analysis suggests multiple deformation events occurring at different *** average stress is 25.68 MPa,with the strain rates(έ)ranging from 9.77×10^(−14)s^(−1)to 6.52×10^(−16)s^(−1).The finite strain of the Guoxuepu ductile shear zone indicates an elongated strain *** average kinematic vorticity of the Guoxuepu ductile shear zone is 0.88,implying that the shear zone is dominated by simple *** muscovite selected from the protomylonite samples in the Guoxuepu ductile shear zone yields a 40Ar-39Ar age of 60.09±0.38 *** is suggested that,coeval with the initial Indo–Eurasian collision,the development of strike-slip faults led to a weak and unstable crust,upwelling of lower crust magma,then induced the detachment of the Jitang metamorphic complex in the Eocene.

关键词： ^(40)Ar/^(39)Ar dating strain pattern vorticity EBsD Guoxuepu shear zone Jitang metamorphic complex

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Gapless Genome Assembly of ZH8015 and Preliminary Multi-Omics Analysis to Investigate ZH8015's Responses Against Brown Planthopper Infestation

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Rice science 2024年第3期31卷 317-327,I0042-I0045页

作者： LI dian.DUAN Wenjing LIU Qun’en WU Weixun ZHAN Xiaodeng sUN Lianping ZHANG Yingxin CheNG shihua state Key Laboratory of Rice Biology and Breeding China National Rice Research InstituteHangzhou 310006China

Accurate genomic information is essential for advancing genetic breeding research in specific rice *** study presented a gapless genome assembly of the indica rice cultivar Zhonghui 8015(ZH8015)using Pac Bio HiFi,Hi-C,and ONT(Oxford Nanopore Technologies)ultra-long sequencing technologies,annotating 43037 gene ***,utilizing this genome along with transcriptomic and metabolomic techniques,we explored ZH8015's response to brown planthopper(BPH)*** transcriptomic sampling indicated significant changes in gene expression levels around 48 h after BPH *** analysis revealed particularly significant alterations in genes related to reactive oxygen species scavenging and cell wall *** results demonstrated marked increases in levels of several monosaccharides,which are components of the cell wall and dramatic changes in flavonoid *** association analysis identified differentially expressed genes associated with key metabolites,shedding light on ZH8015's response to BPH *** summary,this study constructed a reliable genome sequence resource for ZH8015,and the preliminary multi-omics results will guide future insect-resistant breeding research.

关键词： brown planthopper gapless genome genome assembly multi-omics Nilaparvata lugens rice

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Eccrine porocarcinoma in the tempus of an elderly woman:A case report

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World Journal of Clinical Cases 2024年第8期12卷 1523-1529页

作者： Zhi-Wei Wu Wen-Jie Zhu shan Huang Qi Tan Cong You dian.Gui Hu Long-Nian Li Department of Dermatology First Affiliated Hospital of Gannan Medical UniversityGanzhou 341000Jiangxi ProvinceChina Department of Laser and Cosmetic Dermatology Ganzhou Dermatology HospitalGanzhou 341000Jiangxi ProvinceChina Department of Dermatology Tongxiang Dermatology HospitalJiaxing 314000Zhejiang ProvinceChina Department of Infectious Diseases The Fifth people’s Hospital of GanzhouGanzhou 341000Jiangxi ProvinceChina

BACKGROUND Eccrine porocarcinoma(EPC)is a rare skin tumor that mainly affects the elderly *** often present with slow growth and a good *** are usually distinguished from other skin tumors using histopathology and ***,surgical management alone may be inadequate if the tumor has ***,currently,surgical resection is the most commonly used treatment *** sUMMARY A seventy-four-year-old woman presented with a slow-growing nodule in her left temporal area,with no obvious itching or pain,for more than four *** examination showed small columnar and short spindle-shaped cells;thus,basal cell carcinoma was ***,immunohistochemical analysis revealed the expression of cytokeratin 5/6,p63 protein,p16 protein,and Ki-67 antigen(40%),and EPC was taken into *** skin biopsy was repeated,and hematoxylin and eosin staining revealed ductal differentiation in some ***,the patient was diagnosed with EPC,and Mohs micrographic surgery was *** adapted follow-up visits in a year and not found any recurrence of *** This case report emphasizes the diagnosis and differentiation of EPC.

关键词： Eccrine porocarcinoma sweat gland carcinoma Histopathology Immunohistochemistry Prognosis Case report

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论马克思对西方现代性的三重批判

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学习与探索 2024年第6期 75-83页

作者：李佃来武汉大学哲学学院

马克思没有在自己的著作中使用“现代性”这一术语,但他对资本主义的全面批判,在事实上构成了对西方现代性的批判。在西方资本主义的制度体系中,作为现代性主导原则的主体性,主要体现为个人主义、物化逻辑以及资本逻辑的扩张与蔓延等形... 详细信息

马克思没有在自己的著作中使用“现代性”这一术语,但他对资本主义的全面批判,在事实上构成了对西方现代性的批判。在西方资本主义的制度体系中,作为现代性主导原则的主体性,主要体现为个人主义、物化逻辑以及资本逻辑的扩张与蔓延等形式。马克思对这三种形式所作出的深刻检视和批判,是他对西方现代性予以批判的实体内容。马克思对西方现代性的批判,并不表明他在理论上否弃了现代性。毋宁说,马克思通过这一批判,实现了对现代性的根本重建,从而为我们提供了一种理解和发展现代性的更优方案。由此可以看到,马克思主义构成了西方式现代化及其代表的文明形态的批判力量,但在其理论框架内蕴含着用以论证、辩护、支持、推动现代化的丰富思想资源。以马克思主义为指导的中国式现代化,是一种具有巨大优越性和蓬勃生命力、表征着人类文明新形态的现代化发展模式。这一模式的根本理念,也体现、印证、丰富着马克思的现代性思想。

关键词：马克思西方现代性个人主义物化逻辑资本逻辑的扩张与蔓延

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