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Toroidal dipole response in rectangular waveguide:used to generate vector beams and vector vortex beams

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Chinese Optics Letters 2024年第1期22卷 90-97页

作者：罗灏陈聪高鹏冯越任紫燕乔昱嘉刘海 School of Information and Control Engineering China University of Mining and TechnologyXuzhou 221116China

Toroidal multipole is a special current distribution that has many different characteristics from electric multipole and magnetic multipole *** of its special properties,the toroidal dipole is a research hotspot in the field of metamaterials and ***,the low scattering of the toroidal dipole moment makes its excitation a challenging *** present,there are relatively few studies on its specific engineering *** this paper,by slotting in the rectangular cavity,the excitation of an equivalent toroidal dipole is successfully achieved over a wide frequency range of 53-58 *** indicate that under the action of the toroidal dipole,the TE_(10)mode electromagnetic waves transmitted in the rectangular waveguide are converted into vector beams and are radiated *** adjusting the spatial distribution of the magnetic dipoles in the toroidal dipoles yields results that indicate that the resonance mode in the slot is still dominated by the magnetic toroidal dipole moment,and the electromagnetic waves radiating outward are vortex beams carrying vector *** scattered energy of each dipole moment inside the antenna is *** calculation verifies that the mass of the vector beam and vector vortex beam is closely related to the toroidal dipole supported by this *** proposed structure can be applied to explorations in vortex filtering,in photon entanglement,and in the photonic spin Hall effect.

关键词： toroidal dipole vector beams vector vortex beams

FOXO1 reshapes neutrophils to aggravate acute brain damage and promote late depression after traumatic brain injury

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Military Medical Research 2024年第4期11卷 521-542页

作者： Mi Zhou Yang-Wu-Yue Liu Yu-Hang He Jing-Yu Zhang Hao Guo Hao Wang Jia-Kui ren Yi-Xun Su Teng Yang Jia-Bo Li Wen-Hui He peng-Jiao Ma Man-Tian Mi Shuang-Shuang Dai Department of Biochemistry and Molecular Biology School of Basic MedicineArmy Medical UniversityChongqing 400038China Research Center for Nutrition and Food Safety Chongqing Key Laboratory of Nutrition and HealthInstitute of Military Preventive MedicineArmy Medical UniversityChongqing 400038China Department of Neurosurgery Daping HospitalArmy Medical UniversityChongqing 400042China Department of Trauma and Emergency Southwest HospitalArmy Medical UniversityChongqing 400038China Department of Histology and Embryology Chongqing Key Laboratory of NeurobiologyBrain and Intelligence Research Key Suyixun Laboratory of Chongqing Education CommissionArmy Medical UniversityChongqing 400038China Research Center Seventh Affiliated Hospital of Sun Yat-Sen UniversityShenzhen 518107GuangdongChina

Background:Neutrophils are traditionally viewed as first responders but have a short onset of action in response to traumatic brain injury(TBI).However,the heterogeneity,multifunctionality,and time-dependent modulation of brain damage and outcome mediated by neutrophils after TBI remain poorly ***:Using the combined single-cell transcriptomics,metabolomics,and proteomics analysis from TBI patients and the TBI mouse model,we investigate a novel neutrophil phenotype and its associated effects on TBI outcome by neurological deficit scoring and behavioral *** also characterized the underlying mechanisms both invitro and invivo through molecular simulations,signaling detections,gene expression regulation assessments[including dual-luciferase reporter and chromatin immunoprecipitation(ChIP)assays],primary cultures or co-cultures of neutrophils and oligodendrocytes,intracellular iron,and lipid hydroperoxide concentration measurements,as well as forkhead box protein O1(FOXO1)conditional knockout ***:We identified that high expression of the FOXO1 protein was induced in neutrophils after TBI both in TBI patients and the TBI mouse *** of these FOXO1high neutrophils in the brain was detected not only in the acute phase but also in the chronic phase post-TBI,aggravating acute brain inflammatory damage and promoting late TBI-induced *** the acute stage,FOXO1 upregulated cytoplasmic Versican(VCAN)to interact with the apoptosis regulator B-cell lymphoma-2(BCL-2)-associated X protein(BAX),suppressing the mitochondrial translocation of BAX,which mediated the antiapoptotic effect companied with enhancing interleukin-6(IL-6)production of FOXO1high *** the chronic stage,the“FOXO1-transferrin receptor(TFRC)”mechanism contributes to FOXO1high neutrophil ferroptosis,disturbing the iron homeostasis of oligodendrocytes and inducing a reduction in myelin basic protein,which contributes to the progression of late depression afte

关键词： Traumatic brain injury(TBI) Neutrophil Forkhead box protein O1(FOXO1) Acute stage Chronic stage

习近平文化思想中的家国情怀:内涵、境遇与培育

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浙江工商大学学报 2024年第3期 27-35页

作者：任鹏赵海男东北大学马克思主义学院辽宁沈阳110169

浓厚的家国情怀既是习近平新时代中国特色社会主义思想鲜明的情感底色,更是习近平文化思想的重要内容。重“传承”,尚“结合”,并在“发展”中展现为更为主动的精神力量、更为积极的道德实践、更为有力的文化支撑,是新时代家国情怀的突... 详细信息

浓厚的家国情怀既是习近平新时代中国特色社会主义思想鲜明的情感底色,更是习近平文化思想的重要内容。重“传承”,尚“结合”,并在“发展”中展现为更为主动的精神力量、更为积极的道德实践、更为有力的文化支撑,是新时代家国情怀的突出特征。然而,物质精神共富中不平衡不充分的发展对家国意识的弱化,家国情感交融中从爱家到爱国的正向情感转化存在张力,文化自信增强中异质非主流意识形态对国家认同的影响,家国文化彰显中家庭在国家政策视野中的位序相对滞后,仍是其面临的实然之困。要从夯实物质基础以稳固家国情怀的前提性保障、凝聚精神力量以拓展家国情怀的创新性表达、强化价值引领以筑牢家国情怀的意识形态阵地、完善制度支撑以巩固家国情怀的家庭文明阵地四个维度赋予家国情怀以现代文明特质,推进其更好传承发展。

关键词：习近平文化思想家国情怀时代内涵培育路径

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自下而上的乡村数字治理何以可能?--以某小程序扩散的社会过程为关键个案

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社会学评论 2024年第5期12卷 160-187页

作者：吕鹏任雅兰中国社会科学院社会学研究所、中国社会科学院私营企业主群体研究中心中国农业大学人文与发展学院

通过深描某数字平台企业开发的治理小程序在一个村庄从零用户转变为高活跃的社会过程,本研究从村庄视角出发,尝试揭示外来技术在没有经过大规模外部动员的情况下在本土社会扩散的逻辑与机制:首先,线下治理形成的社会网络和社会观念为线... 详细信息

通过深描某数字平台企业开发的治理小程序在一个村庄从零用户转变为高活跃的社会过程,本研究从村庄视角出发,尝试揭示外来技术在没有经过大规模外部动员的情况下在本土社会扩散的逻辑与机制:首先,线下治理形成的社会网络和社会观念为线上治理小程序的应用奠定了社会基础。其次,与村庄适配的产品设计是数字平台得以顺利“入场”的技术基础。最后,“政务平台化”和“平台敏捷化”这两个关键机制使其得以激活。本文不仅将外来数字治理平台在乡村自下而上的扩散这一经验现象概念化,而且在机制解释层面突破了国家中心论和社会决定论的范式,把技术的独立特征以及技术与社会的互构带回了分析的中心,为村庄治理策略制定和平台产品开发提供了启示。

关键词：乡村数字治理数字乡村自来水型村庄技术扩散社会过程

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全过程人民民主制度化的过程机理与推进路径

思想教育研究 2024年第7期 3-11页

作者：任鹏薛耀利东北大学马克思主义学院辽宁沈阳110169

全过程人民民主制度化不仅是理念“化”为制度的单向过程,更是充分展现全过程人民民主本质力量、不断为人民解决问题、更好地把制度优势转化为治理效能的“多合一”进程。制度生成、制度巩固、制度完善、制度成熟等各个民主制度化阶段... 详细信息

全过程人民民主制度化不仅是理念“化”为制度的单向过程,更是充分展现全过程人民民主本质力量、不断为人民解决问题、更好地把制度优势转化为治理效能的“多合一”进程。制度生成、制度巩固、制度完善、制度成熟等各个民主制度化阶段所面临的主要问题各不相同,与之相对应的任务也各有侧重,“化”的程度、路径也各有差异,这些方面共同形塑了全过程人民民主制度化的过程机理。当前,全过程人民民主制度体系中的不同层级制度实际上处于制度化的不同阶段、面临不同的问题,必须通过加强根本政治制度和基本政治制度的引领性、增强重要政治制度的可操作性、提升民主理念和探索经验转化为制度的有效性,从而更有针对性地推动制度化进程。

关键词：全过程人民民主制度化民主制度

GFRP补片内SMA铺设构型对修理层合板热振动特性的影响

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复合材料学报 2024年第5期41卷 2487-2502页

作者：崔开心谢昊航任鹏卢翔中国民航大学航空工程学院天津300300 中国民航大学交通科学与工程学院天津300300

在复合材料中加入形状记忆合金(SMA)制成的纤维增强材料具有高强度、高阻尼与良好的自修复性等优点,可明显提高修理结构刚度及抗剥离性。为了探究热环境下玻璃纤维补片内嵌不同铺设数量与方式的SMA修理板的振动特性,基于Liang-Rogers的... 详细信息

在复合材料中加入形状记忆合金(SMA)制成的纤维增强材料具有高强度、高阻尼与良好的自修复性等优点,可明显提高修理结构刚度及抗剥离性。为了探究热环境下玻璃纤维补片内嵌不同铺设数量与方式的SMA修理板的振动特性,基于Liang-Rogers的SMA本构模型编制用户自定义材料子程序(UMAT),实现有限元精确求解。对比传统修理板与本文制备的SMA修理板的振型、固有频率及阻尼比变化情况,探究不同温度下SMA铺设构型对双面贴补修理玻璃纤维层合板振动特性的影响。实验与仿真结果表明:相较于单线型(D)与垂直交叉型(C),斜铺交叉型(X)SMA修理板前三阶振型更接近传统修理板(Q_(0)),且振型与嵌入的SMA数量无关。SMA相变时,内嵌SMA使修理板前二阶固有频率上升且上升率与SMA数量呈正相关,与SMA铺设方式关系如下:C型>D型>X型。内嵌SMA使修理板耗能能力及阻尼性优于Q_(0)板,与SMA数量呈正相关,与SMA铺设方式关系如下:X型>C型>D型。本文研究的铺设构型中,X_(24)型修理效果最优,其一、二阶固有频率最高可恢复至Q_(0)板的108.47%与112.26%,阻尼比相较于Q_(0)板增大了5.19倍。该工作可以为现有传统复合材料修理向智能复合材料修理技术转变提供参考。

关键词： SMA 编织玻璃纤维复合材料振动特性双面贴补修理智能材料

Biochar induced trade-offs and synergies between ecosystem services and crop productivity

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Journal of Integrative Agriculture 2024年第11期 3882-3895页

作者： Jinxia Wang Qiu Huang Kai peng Dayang Yang Guozhen Wei Yunfei ren Yixuan Wang xiukang Wang Nangia Vinay Shikun Sun Yanming Yang Fei Mo College of Agronomy Northwest A&F University Agricultural and Animal Husbandry Technology Extension Center College of Life Sciences Yan'an University International Center for Agricultural Research in the Dry Areas (ICARDA) College of Water Resources and Architectural Engineering Northwest A&F University College of Agronomy Inner Mongolia Agricultural University

Biochar amendment offers a chance for sustainable agriculture. However, the effectiveness of biochar relies on its physical and chemical properties, which are heavily affected by biochar production conditions and management practices. Therefore, substantial uncertainties regarding the use of biochar exist in agricultural systems *** study provides the first quantitative evaluation of the impacts of biochar characteristics and management practices on key ecosystem services by performing a second-order meta-analysis based on 34,628 paired observations in biochar-amended and unamended systems. Overall, biochar enhances phytotoxicity alleviation,physiology regulation, soil remediation and carbon sequestration, and microbial functional gene ***, some prominent trade-offs exist between crop productivity and ecosystem service deliveries including for nutrient cycling, microbial function, climate change mitigation, and the soil microbial community. The adoption of low C:N biochar produced at high pyrolysis temperatures from sewage sludge-derived feedstock, in combination with a moderate application rate and inorganic fertilizer input, shows potential for achieving synergistic promotion of crop productivity and ecosystem services. These outcomes highlight the need for judicious implementation of biochar-based solutions to site-specific soil constraints. The quantified synergy and tradeoff relationships will aid the establishment of a sustainable biochar development framework that strengthens necessary ecosystem services commensurate with food security assurance.

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药用大黄内生真菌的分离及鉴定

贵州工程应用技术学院学报 2024年第3期42卷 82-90页

作者：任秀秀贵州中医药大学基础医学院贵州贵阳550025

药用大黄可以加强胃肠道蠕动、清热解毒、止血、保肝利胆、改善肾功能、抗氧化、抗血栓、抗炎抑菌、抗肿瘤等。而内生真菌则是植物体内广泛存在的一种重要微生物资源,部分内生真菌对植物生长发育具有重要影响。大黄内生真菌与大黄的生... 详细信息

药用大黄可以加强胃肠道蠕动、清热解毒、止血、保肝利胆、改善肾功能、抗氧化、抗血栓、抗炎抑菌、抗肿瘤等。而内生真菌则是植物体内广泛存在的一种重要微生物资源,部分内生真菌对植物生长发育具有重要影响。大黄内生真菌与大黄的生长、药用成分的生成等之间的关系鲜有报道,这些研究都以内生真菌的分离鉴定为前提。因此,本实验以药用大黄根部为材料,经过严格的表面消毒,分离纯化得到内生真菌,观察内生真菌的菌落培养形态、个体显微特征,并根据ITS序列进行分类鉴定。结果表明:综合形态学观察和分子生物学鉴定实验结果,共分离出26株内生真菌,13个种,分属于8个属,其中2株真菌的分子鉴定结果相似度系数较低,值得进一步研究。该结果对研究大黄内生真菌和大黄的生长关系以及大黄药用成分的关系奠定了基础。

关键词：大黄内生真菌鉴定

Omics-imaging signature-based nomogram to predict the progression-free survival of patients with hepatocellular carcinoma after transcatheter arterial chemoembolization

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World Journal of Clinical Cases 2024年第18期12卷 3340-3350页

作者： Qing-Long Guan Hai-Xiao Zhang Jun-peng Gu Geng-Fei Cao Wei-Xin ren Department of Interventional Radiology The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830011Xinjiang Uygur Autonomous regionChina Department of Interventional Radiology The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830011Xinjiang Uygur Autonomous RegionChina

BACKGROUND Enhanced magnetic resonance imaging(MRI)is widely used in the diagnosis,treatment and prognosis of hepatocellular carcinoma(HCC),but it can not effectively reflect the heterogeneity within the tumor and evaluate the effect after *** imaging analysis of voxel changes can effectively reflect the internal heterogeneity of the tumor and evaluate the progression-free survival(PFS).AIM To predict the PFS of patients with HCC before operation by building a model with enhanced MRI *** Delineate the regions of interest(ROI)in arterial phase,portal venous phase and delayed phase of enhanced *** extracting the combinatorial features of ROI,the features are fused to obtain deep learning radiomics(DLR)_***'s test was used to evaluate the diagnostic performance of different typological features.K-M analysis was applied to assess PFS in different risk groups,and the discriminative ability of the model was evaluated using the *** Tumor diameter and diolame were independent factors influencing the prognosis of ***'s test revealed multi-phase combined radiomic features had significantly greater area under the curve values than did those of the individual phases(Prences were observed between the multi-phase and individual phases feature sets(P<0.05).K-M survival analysis revealed a median survival time of high risk group and low risk group was 12.8 and 14.2 months,respectively,and the predicted probabilities of 6 months,1 year and 2 years were 92%,60%,40%and 98%,90%,73%,*** C-index was 0.764,indicating relatively good consistency between the predicted and observed *** and DLR have higher predictive value for 2-year PFS in *** Based on the multi-temporal characteristics of enhanced MRI and the constructed Nomograph,it provides a new strategy for predicting the PFS of transarterial chemoembolization treatment of HCC.

关键词： Magnetic resonance imaging Radiomics Deep learning Progression-free survival Transcatheter arterial chemoembolization Hepatocellular carcinoma