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人类世、资本世还是西方世?--论当前气候危机的意识形态基础

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国外理论动态 2024年第2期 118-125页

作者：阿尔瓦罗·圣罗曼约安·莫利内罗-热博肖玉飞(译) 西班牙国立远程教育大学哲学系西班牙卡米亚斯大学移民研究所复旦大学马克思主义研究院

在当前关于气候危机的原因、后果和解决方案的争论中,人类世话语实际上是一种有缺陷的人类学、生态学、历史学和科学视角,因为它通过复制笛卡尔主义的二元论观点,炮制出意识形态是生态危机的源头这一人类世霸权话语。文章将首先揭露人... 详细信息

在当前关于气候危机的原因、后果和解决方案的争论中,人类世话语实际上是一种有缺陷的人类学、生态学、历史学和科学视角,因为它通过复制笛卡尔主义的二元论观点,炮制出意识形态是生态危机的源头这一人类世霸权话语。文章将首先揭露人类世叙事的主要理论假设,随后指出人类世叙事存在抽象人类主义的理论缺陷,强调研究气候危机需要采取具有更广泛的人类历史和社会结构视野的资本世视角。最后,文章还对资本世的理论支柱提出了质疑,并通过对资本世理论的深入分析揭示出资本主义的意识形态实质:资本主义本身是一种建立在西方思想的意识形态基础上的物质结构。文章旨在通过剖析人类世、资本世与西方世的内在关联,引申出如下结论:引导我们进入新地质时期的不是人类自身,而是以西方思想文化为根基的资本主义制度,即西方中心主义的资本世。

关键词：资本世人类世世界生态系统气候变化资本主义

Temperature dependence of LiNbO3 dislocation density in the near-surface layer

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Chinese Optics Letters 2022年第6期20卷 40-46页

作者： Oksana Semenova Aleksei Sosunov Nikolai prokhorov roman ponomarev Department of Nanotechnology and Microsystems Engineering Perm State UniversityPerm 614990Russia perm Federal Research Center of the Ural Branch of the Russian Academy of Sciences Perm 614990Russia

Density of dislocations in the near-surface layer was investigated in X-cut LiNbO_(3) depending on thermal annealing in the temperature range of 400℃–600℃.A dynamic model of randomly distributed dislocations has been developed for LiNbO_(3) by using X-ray *** experimental results showed that the dislocation density of the near-surface layer reached the minimum at the thermal annealing temperature of 500℃,with the analysis being performed when wet selective etching and X-ray diffraction methods were *** concluded that homogenization annealing is an effective technique to improve the quality of photonic circuits based on LiNbO_(3).The results obtained are important for optical waveguides,LiNbO_(3)-on-insulator-based micro-photonic devices,electro-optical modulators,sensors,etc.

关键词： lithium niobate etching pits near-surface layer density of dislocations annealing X-ray diffraction

Loss Factors and their Effect on Resonance peaks in Mechanical Systems

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Sound & Vibration 2023年第1期57卷 1-13页

作者： roman Vinokur Independent Consultant Woodland HillsSan Diego91367USA

The loss factors and their effects on the magnitude and frequency of resonance peaks in various mechanical sys-tems are reviewed for acoustic,vibration,and vibration fatigue *** main trends and relationships were obtained for linear mechanical models with hysteresis *** well-known features(complex module of elasticity,total loss factor,etc.)are clarified for practical engineers and students,and new results are presented(in particular,for 2-DOF in-series models with hysteresis friction).The results are of both educational and prac-tical interest and may be applied for NVH analysis and testing,mechanical and aeromechanical design,and noise and vibration control in buildings.

关键词： Mechanical loss factor resonance peak acoustics vibration structural failure noise NVH engineering systems

Stock profiling using time–frequency‑varying systematic risk measure

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Financial Innovation 2023年第1期9卷 1525-1553页

作者： roman Mestre Montpellier Research in Economics University of MontpellierAvenue Raymond Dugrand34960 MontpellierCedex 2France

This study proposes a wavelets approach to estimating time–frequency-varying betas in the capital asset pricing model(CApM)*** dynamic of systematic risk across time and frequency is analyzed to investigate stock risk-profile ***,we emphasize the effect of an investor’s investment horizon on the robustness of portfolio *** use a daily panel of French stocks from 2012 to *** show that varying systematic risk varies in time and frequency,and that its short and long-run evolutions *** observe differences in short and long dynamics,indicating that a stock’s betas differently fluctuate to early announcements or signs of ***,short-run and long-run betas exhibit similar dynamics during persistent *** are more volatile during times of crisis,resulting in greater or lesser robustness of risk *** differences exist in short-run and longrun risk profiles,implying a different asset *** conclude that the standard CApM assumes short-run ***,investors should consider time–frequency CApM to perform systematic risk analysis and portfolio allocation.

关键词： Maximal overlap discrete wavelets transform Time Frequency-varying beta Time Frequency rolling window Risk-profile Systematic risk

partially coherent beam generation with metasurfaces

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photonics Research 2023年第9期11卷 1535-1541页

作者： roman CALpE ATRI HALDER MEILAN LUO MATIAS KOIVUROVA JARI TURUNEN Center for photonics Sciences University of Eastern FinlandFI-80101 JoensuuFinland Department of physics and Synergetic Innovation Center for Quantum Effects and Applications Hunan Normal UniversityChangsha 410081China Tampere Institute for Advanced Study Tampere University33100 TampereFinland Faculty of Engineering and Natural Sciences Tampere UniversityFI-33720 TampereFinland

An optical system for the generation of partially coherent beams with genuine cross-spectral density functions from spatially modulated globally incoherent sources is *** spatial intensity modulation of the incoherent source is achieved by quasi-planar metasurfaces based on spatial-frequency modulation of binary Bragg surface-relief diffraction *** types of beams are demonstrated experimentally:(i)azimuthally periodic,radially quasi-periodic beams and(ii)rotationally symmetric Bessel-correlated beams with annular far-zone radiation patterns.

关键词： coherent periodic quasi

problematics of neurosurgical service during the COVID-19 pandemic in Slovenia

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World Journal of Clinical Cases 2022年第34期10卷 12462-12469页

作者： Matic Munda roman Bosnjak Tomaz Velnar Department of Neurosurgery University Medical Centre LjubljanaLjubljana 1000Slovenia Alma Mater Europaea AMEU-ECMMaribor 2000Slovenia

The novel coronavirus disease 2019(COVID-19)is an ongoing disease caused by severe acute respiratory syndrome coronavirus-2 that still poses an important and urgent threat to global *** Slovenia,the epidemic was declared on March 12th,2020,and since then COVID-19 has had a great impact on our health *** field of neurosurgery in particular has been experiencing difficulties in both elective and emergency *** this article,we described epidemiologic protocols and the effect that the COVID-19 pandemic had on the surgical practice and workflow of the Department of Neurosurgery at the University Medical Centre *** analyzed and compared the number of elective and emergency neurosurgical procedures in a 2-year period before and during the *** recorded a drop in cases mostly on account of elective procedures whilst emergency service remained relatively unaffected.

关键词： Neurosurgery COVID-19 pandemic Epidemic measures Slovenia Ljubljana

Molecular heterostructure by fusing graphene nanoribbons of different lengths through a pentagon ring junction

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Nano Research 2022年第9期15卷 8465-8469页

作者： Qiang Sun Hao Jiang Yuyi Yan roman Fasel pascal Ruffieux Materials Genome Institute Shanghai UniversityShanghai 200444China Empa Swiss Federal Laboratories for Materials Science and TechnologyDübendorf 8600Switzerland Department of Chemistry Biochemistry and Pharmaceutical SciencesUniversity of BernBern 3012Switzerland

Graphene nanoribbons(GNRs)have attracted great research interest because of their widely tunable and unique electronic *** required atomic precision of GNRs can be realized via on-surface synthesis *** this work,through a surface assisted reaction we have longitudinally fused the pyrene-based graphene nanoribbons(pGNR)of different lengths by a pentagon ring junction,and built a molecular junction structure on Au(111).The electronic properties of the structure are studied by scanning tunneling spectroscopy(STS)combined with tight binding(TB)*** pentagon ring junction shows a weak electronic coupling effect on graphene nanoribbons,which makes the electronic properties of the two different graphene nanoribbons connected by a pentagon ring junction analogous to type I semiconductor heterojunctions.

关键词： graphene nanoribbons(GNRs) scanning tunneling spectroscopy(STS) non-contact atomic force microscopy(nc-AFM) tight-binding(TB)calculations junction structure

Estimating Intelligence Quotient Using Stylometry and Machine Learning Techniques:A Review

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Big Data Mining and Analytics 2022年第3期5卷 163-191页

作者： Glory O.Adebayo roman V.Yampolskiy Department of Computer Science and Engineering University of LouisvilleLouisvilleKY 40208USA

The task of trying to quantify a person’s intelligence has been a goal of psychologists for over a *** area of estimating IQ using stylometry has been a developing area of research and the effectiveness of using machine learning in stylometry analysis for the estimation of IQ has been demonstrated in literature whose conclusions suggest that using a large dataset could improve the quality of *** unavailability of large datasets in this area of research has led to very few publications in IQ estimation from written *** this paper,we review studies that have been done in IQ estimation and also that have been done in author profiling using stylometry and we conclude that based on the success of IQ estimation and author profiling with stylometry,a study on IQ estimation from written text using stylometry will yield good results if the right dataset is used.

关键词： stylometry IQ estimation authorship attribution intelligence IQ author profiling machine learning

Influence of parameters on the microstructure of a duplex stainless steel joint welded by a GMAW welding process

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progress in Natural Science:Materials International 2022年第4期32卷 415-423页

作者： Sandra Chacón-Fernández Antonio portolés García Gerardo romaní Labanda Universidad politécnica de Madrid Escuela Técnica Superior de Ingenieros Industriales UPM

Duplex stainless steels（DSSs） are widely used in industry for their desirable properties. Any fusion welding technique modifies the microstructure and, consequently, the properties of the material. This paper presents a parametric study of the variables that determine the energy contribution（current, voltage and welding speed） and the structural modifications produced during gas metal arc welding. The analysis comprises metallographic study,phase balance, dimensioning of the weld beads and tensile and hardness tests. The influence of the variables studied on the thermal cycles obtained（temperatures reached and cooling rate） was determined by using a finite element model. The results showed that, in addition to the indicated parameters, the parameter power transfer per volume（W/m3） and the geometry in the bead must be controlled due to their influence on the heat flow distribution and phase balance.

关键词： Welding Heat input GMAW Duplex stainless steels (DSS) Finite element model (FEM)