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On Isodual Double Toeplitz Codes

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Journal of Systems Science & Complexity 2024年第5期37卷 2196-2206页

作者： SHI Minjia XU Li solé Patrick Key Laboratory of Intelligent Computing and Signal Processing Ministry of Education School of Mathematical Sciences Anhui University State Key Laboratory of Information Security Institute of Information Engineering Chinese Academy of Sciences CNRS University of Aix Marseille Centrale Marseille

Double Toeplitz（shortly DT） codes are introduced here as a generalization of double circulant codes. The authors show that such a code is isodual, hence formally self-dual（FSD）. FSD codes form a far-reaching generalization of self-dual codes, the most important class of codes of rate one-half. Self-dual DT codes are characterized as double circulant or double negacirculant. Likewise, even binary DT codes are characterized as double circulant. Numerical examples obtained by exhaustive search show that the codes constructed have best-known minimum distance, up to one unit, amongst formally self-dual codes, and sometimes improve on the known values. For q = 2, the authors find four improvements on the best-known values of the minimum distance of FSD codes. Over F4an explicit construction of DT codes, based on quadratic residues in a prime field, performs equally well. The authors show that DT codes are asymptotically good over Fq. Specifically, the authors construct DT codes arbitrarily close to the asymptotic Varshamov-Gilbert bound for codes of rate one half.

关键词： Double circulant codes double Toeplitz codes formally self-dual codes isodual codes

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徘徊在十字路口的跨国企业国际征税

国际税收 2023年第5期 32-38页

作者：索尔·皮乔托梁若莲(译) 英国兰卡斯特大学国家税务总局广东省税务局

跨国企业在日益全球化的经济中以单一企业的身份开展经营活动,但其利润税却由各国征收。因此,国际税收规则从一开始就因自相矛盾的方法而四分五裂:要么通过将跨国企业与从事类似业务的独立公司进行比较,来确定某一辖区内的跨国企业应归... 详细信息

跨国企业在日益全球化的经济中以单一企业的身份开展经营活动,但其利润税却由各国征收。因此,国际税收规则从一开始就因自相矛盾的方法而四分五裂:要么通过将跨国企业与从事类似业务的独立公司进行比较,来确定某一辖区内的跨国企业应归属于每个独立构成实体的应税利润;要么按照反映跨国企业在某一辖区内从事活动的要素来分配全球利润,据以对其中合理的份额征税。1995年OECD《跨国企业与税务机关转让定价指南》被广泛采用之后,独立实体原则成为主流原则。但它以将高额利润归属于低税辖区实体为基础,因而不当地激励着跨国企业制定避税策略。基于此,G20授权OECD启动税基侵蚀和利润转移(BEPS)项目,试图改革这些规则,由经济活动发生地对跨国企业利润征税,标志着单一征税原则的回归。当前“双支柱”方案对跨国企业采用了单一征税原则和公式分配的技术标准,但却是叠加在以互不兼容的独立实体原则为基础的现有规则之上。国际税收的根基是否稳定取决于能否摆脱这一两难困境,并根据跨国企业在每个辖区开展的实际活动,公平、均衡地分配对其利润进行征税的权利。

关键词：跨国企业单一征税公式分配独立实体原则独立交易原则

Blood-brain barrier pathology in cerebral small vessel disease

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Neural Regeneration Research 2024年第6期19卷 1233-1240页

作者： Ruxue Jia Gemma solé-Guardia Amanda J.Kiliaan Department of Medical Imaging AnatomyRadboud University Medical CenterDonders Institute for BrainCognition&BehaviorCenter for Medical NeurosciencePreclinical Imaging Center PRIMERadboud Alzheimer CenterNijmegenthe Netherlands

Cerebral small vessel disease is a neurological disease that affects the brain microvasculature and which is commonly observed among the *** at first it was considered innocuous,small vessel disease is nowadays regarded as one of the major vascular causes of *** signs of small vessel disease include small subcortical infarcts,white matter magnetic resonance imaging hyperintensities,lacunes,enlarged perivascular spaces,cerebral microbleeds,and brain atrophy;however,great heterogeneity in clinical symptoms is observed in small vessel disease *** pathophysiology of these lesions has been linked to multiple processes,such as hypoperfusion,defective cerebrovascular reactivity,and blood-brain barrier ***,studies on small vessel disease suggest that blood-brain barrier dysfunction is among the earliest mechanisms in small vessel disease and might contribute to the development of the hallmarks of small vessel ***,the purpose of this review is to provide a new foundation in the study of small vessel disease ***,we discuss the main structural domains and functions of the blood-brain ***,we review the most recent evidence on blood-brain barrier dysfunction linked to small vessel ***,we conclude with a discussion on future perspectives and propose potential treatment targets and interventions.

关键词： blood-brain barrier dysfunction cerebral blood flow cerebral hypoperfusion endothelial dysfunction hypertension inflammation magnetic resonance imaging neurovascular unit oxidative stress small vessel disease tight junctions transcytosis

Suboptimal Feature Selection Techniques for Effective Malicious Traffic Detection on Lightweight Devices

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Computer Modeling in Engineering & Sciences 2024年第8期140卷 1669-1687页

作者： So-Eun Jeon Ye-sol Oh Yeon-Ji Lee Il-Gu Lee Department of Future Convergence Technology Engineering Sungshin Women’s UniversitySeoul02844Korea Department of Convergence Security Engineering SungshinWomen’s UniversitySeoul02844Korea

With the advancement of wireless network technology,vast amounts of traffic have been generated,and malicious traffic attacks that threaten the network environment are becoming increasingly *** signature-based detection methods,static analysis,and dynamic analysis techniques have been previously explored for malicious traffic detection,they have limitations in identifying diversified malware traffic *** research has been focused on the application of machine learning to detect these ***,applying machine learning to lightweight devices like IoT devices is challenging because of the high computational demands and complexity involved in the learning *** this study,we examined methods for effectively utilizing machine learning-based malicious traffic detection approaches for lightweight *** introduced the suboptimal feature selection model(SFSM),a feature selection technique designed to reduce complexity while maintaining the effectiveness of malicious traffic *** performance was evaluated on various malicious traffic,benign,exploits,and generic,using the UNSW-NB15 dataset and SFSM sub-optimized hyperparameters for feature selection and narrowed the search scope to encompass all *** improved learning performance while minimizing complexity by considering feature selection and exhaustive search as two steps,a problem not considered in conventional *** experimental results showed that the detection accuracy was improved by approximately 20%compared to the random model,and the reduction in accuracy compared to the greedy model,which performs an exhaustive search on all features,was kept within 6%.Additionally,latency and complexity were reduced by approximately 96%and 99.78%,respectively,compared to the greedy *** study demonstrates that malicious traffic can be effectively detected even in lightweight device *** verified the possibility of detecting various attack

关键词： Feature selection lightweight device machine learning Internet of Things malicious traffic

Designing for well-Being: Using facial micro-expression analysis and EEG biosensor to evaluate human responses to 2D biophilically-driven geometries

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Frontiers of Architectural Research 2024年第2期13卷 219-234页

作者： Andrea Macruz Ernesto Bueno Gustavo sol Jaime Vega Ricardo Palmieri Bing Zhao College of Architecture and Urban Planning Tongji UniversityShanghaiChina Universidade Presbiteriana Mackenzie Sao PauloBrazil Centro Universitario Belas Artes Sao PauloBrazil Universidade Anhembi Morumbi Sao PauloBrazil Universidade Federal do ABC Santo AndreBrazil

This research explores the capacity of emerging technologies to enhance well-being. It involves the generation of 2D biophilically-driven geometries to represent human-response-oriented built environments and conducts inter and intra-individual analyses to assess human responses using a range of technologies within the realms of facial micro-expression analysis and EEG biosensor use. The outcomes of this analysis allow for the grading of these geometries in terms of emotional valences, meditation levels, and subjective preferences. These graded geometries can subsequently be employed in specific architectural contexts, such as interior decor, wallpapers, furniture surfaces, or other architectural and interior components. It is an interdisciplinary effort that underscores the importance of incorporating emerging technological means with human-response-oriented design approaches to foster built environments that promote well-being.

关键词： Biophilic design Geometrical algorithmicmodeling Facial micro-expressionanalysis EEG biosensor Neuroscience

Morphometric Attributes of Two Native Forage Species According to Water Source Distance in Semiarid Central Grasslands of Argentina

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Phyton-International Journal of Experimental Botany 2024年第8期93卷 2063-2074页

作者： Carla Etel Suárez María sol Rossini Ernesto Francisco Atilio Morici Héctor Daniel Esterlich Laboratorio de Ecología en Ambientes Semiáridos Ecología VegetalFacultad de AgronomíaUNLPamSanta Rosa6300Argentina Facultad de Ciencias Veterinarias UNLPamGeneral Pico6360Argentina Becaria Doctoral CONICET APNFacultad de AgronomíaUNLPamSanta Rosa6300Argentina

The semiarid grasslands of Argentina’s central region have been modified by domestic livestock grazing,both in their composition and *** increase in the proportion of woody and non-forage species and the decrease in forage species are some of the most evident results of this *** is limited available information about the effect of differential grazing pressures on morphometric attributes of native species,and it also depends on the life histories of the species in this *** objective of this work was to evaluate some morphometric aspects in the grasses Poa ligularis Nees ex Steud and Piptochaetium napostaense(Speg.).Hack according to distance from the water source in communities in the central semiarid region of *** study area included areas of low grassland,golden forests,and secondary forests in grasslands(6 fields with 9 paddocks).Grazing pressure was established based on the distance to the water source,so sampling areas were designated near the water source(grazing pressure is greater)and far from the water source(grazing pressure light)in each of the *** both species,specimens were selected at random,and the following attributes were measured:crown diameter at ground level(cm),burial depth(cm),average tiller weight per plant(***^(−1)),and the density of tillers per unit of crown surface(***^(−2)crown).The morphometric attributes evaluated showed differences according to the distance to the watering hole and in the different *** species presented similar behaviors for the *** were significant differences in the depth of burial and the average weight of tillers per plant,being greater in the areas close to the water *** the distance to the watering hole,there were no significant differences in crown diameter and tiller density,but the highest values were recorded for the former near the watering hole and for the second far from the watering *** pastures with low

关键词： Grazing pressure tiller density tiller weight crown burial depth Poa ligularis Piptochaetium napostaense

Metal-modulated epitaxy of Mg-doped Al_(0.80)In_(0.20)N-based layer for application as the electron blocking layer in deep ultraviolet light-emitting diodes

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Journal of Semiconductors 2024年第5期45卷 80-89页

作者： Horacio Irán solís-Cisneros Carlos Alberto Hernández-Gutiérrez Enrique Campos-González Máximo López-López Optomechatronics Group Tecnológico Nacional de México Campus Tuxtla Gutiérrezcarretera Panamericana 1080C.P.29050Tuxtla GutiérrezChiapasMéxico Departamento de Física Instituto Nacional de Investigaciones NuclearesCarretera México-Toluca s/nC.P.52750La Marquesa OcoyoacacMéxico Departamento de Física Centro de Investigación y estudios Avanzados del Instituto Politécnico NacionalAv.Instituto Politécnico Nacional 2508San Pedro ZacatencoGustavo A.Madero07360 Ciudad de MéxicoCDMXMéxico

This work reports the growth and characterization of p-AlInN layers doped with Mg by plasma-assisted molecular beam epitaxy(PAMBE).AlInN was grown with an Al molar fraction of 0.80 by metal-modulated epitaxy(MME)with a thickness of 180 nm on Si(111)substrates using AlN as buffer *** substrate temperatures were used to enhance the incorporation of indium atoms into the alloy without clustering,as confirmed by X-ray diffraction(XRD).Cathodoluminescence measurements revealed ultraviolet(UV)range ***,Hall effect measurements indicated a maximum hole mobility of 146 cm^(2)/(V∙s),corresponding to a free hole concentration of 1.23×10^(19)cm^(−3).The samples were analyzed by X-ray photoelectron spectroscopy(XPS)estimating the alloy composition and extracting the Fermi level by valence band ***-doped AlInN layers were studied for use as the electron-blocking layer(EBL)in LED *** varied the Al composition in the EBL from 0.84 to 0.96 molar fraction to assess its theoretical effects on electroluminescence,carrier concentration,and electric field,using SILVACO *** results from this study highlight the importance and capability of producing high-quality Mg-doped p-AlInN layers through *** simulations suggest that an Al content of 0.86 is optimal for achieving desired outcomes in electroluminescence,carrier concentration,and electric field.

关键词： metal-modulated epitaxy AlInN DUV-LED EBL simulation

Chromomagnetic dipole moments of light quarks in the bestest little Higgs model

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Chinese Physics C 2024年第10期48卷 125-136页

作者： T.Cisneros-Pérez E.Cruz-Albaro A.Y.Ojeda-Castañeda S.E.solís-Núñez Unidad Académica de Ciencias Químicas Universidad Autónoma de ZacatecasApartado Postal C-58598060 ZacatecasMexico Facultad de Física Universidad Autónoma de ZacatecasApartado Postal C-58098060 ZacatecasMexico

In this study,we investigated the anomalous Chromomagnetic Dipole Moment(CMDM),denoted as μ_(q)^(BLHM),of light quarks q=(u,c,d,s,b) within the framework of the Bestest Little Higgs Model(BLHM)as an extension of the Standard Model(SM).Our investigation encompassed novel interactions among the light quarks,heavy quark B,and heavy bosons (W'^(±),H^(±),φ^(±),η^(±))incorporating the extended Cabibbo-Kobayashi-Maskawa(CKM)matrix characteristic of the *** thoroughly explored the permissible parameter space,yielding a spectrum of CMDM values ranging from 10^(-10) to 10^(-3).

关键词： beyond standard model flavor physics chromomagnetic dipole light quarks

Immunoglobulin G4-related spinal pachymeningitis:A case report

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World Journal of Clinical Cases 2024年第32期12卷 6551-6558页

作者： Tae-Seok Chae Da-sol Kim Gi-Wook Kim Yu Hui Won Myoung-Hwan Ko Sung-Hee Park Jeong-Hwan Seo Department of Physical Medicine&Rehabilitation Jeonbuk National University Medical SchoolJeonju 54907South Korea Department of Physical Medicine&Rehabilitation Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University HospitalJeonju 54907South Korea

BACKGROUND Immunoglobulin G4-related disease(IgG4-RD)is a complex immune-mediated condition that causes fibrotic inflammation in several organs.A significant clinical feature of IgG4-RD is hypertrophic pachymeningitis,which manifests as inflammation of the dura mater in intracranial or spinal *** IgG4-RD can affect multiple areas,the spine is a relatively rare site compared to the more frequent involvement of intracranial *** SUMMARY A 70-year-old male presented to our hospital with a two-day history of fever,altered mental status,and generalized *** initial brain magnetic resonance imaging(MRI)revealed multiple small infarcts across various cerebral *** the second day after admission,a physical examination revealed motor weakness in both lower extremities and diminished sensation in the right lower *** evaluation revealed findings consistent with acute motor sensory *** initial management with intravenous immunoglobulin for presumed Guillain-Barrésyndrome,the patient exhibited progressive worsening of motor *** the 45th day of hospitalization,an enhanced MRI of the entire spine,focusing specifically on the thoracic 9 to lumbar 1 vertebral level,raised the suspicion of IgG4-related spinal ***,the patient was administered oral prednisolone and participated in a comprehensive rehabilitation program that included gait training and lower extremity strengthening *** IgG4-related spinal pachymeningitis,diagnosed on MRI,was treated with corticosteroids and a structured rehabilitation regimen,leading to significant improvement.

关键词： Immunoglobulin G4 related disease Immunoglobulin G4 related spinal pachymeningitis Manual motor test Electromyography Magnetic resonance imaging Case report