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Analysis on characteristics of extreme precipitation indices and atmospheric circulation in Northern Shanxi

Research in Cold and Arid Regions 2024年第2期16卷 84-97页

作者： Xia cai Yan Song lin cai Xin Su GuiHua Liang YanMing Xu Shuozhou Meteorological Bureau of Shanxi Province ShuozhouShanxi 036002China China Meteorological Administration Training Center Beijing 100081China Heze University of Shandong Province HezeShandong 274000China Huafeng Meteorological Media Group Beijing 100081China Shuocheng Meteorological Bureau ShuozhouShanxi 036002China

This article utilizes daily precipitation data from 28 national meteorological stations in northern Shanxi Province spanning from 1972 to 2020,and the US NCEP/NCAR monthly average reanalysis and ERA5 monthly average reanalysis *** study employs techniques such as empirical orthogonal function(EOF)decomposition,MannKendall mutation and other methods to investigate the spatiotemporal distribution of extreme precipitation index in northern Shanxi and their correlation with atmospheric *** research results show that:the absolute index,relative index,intensity index and sustained dry period index(CDD)in the continuous index appear from southwest to *** spatial distribution characteristics of the central region decrease,while the continuous wet period(CWD)decreases from the central to the east and *** three indices Rx1day,Rx5day,and CWD mutated in 1978,1975,and 1983 respectively,and other extreme precipitation indices all appeared in a sudden change from a low-value period to a high-value period occurred around *** the high-value years of the summer extreme precipitation index,there is a significant negative anomaly in the height field in the mid-high latitude regions of *** Shanxi is controlled by a broad low-pressure trough in the Lake Baikal *** vapor transported via the east,west,and south routes converges in the northern Shanxi region and encounters cold air from the *** is a strong upward motion anomaly at 500 hPa in the troposphere,and the dynamic conditions of upper-level divergence and lower-level convergence lead to more summer extreme precipitation in the northern Shanxi ***,in the low-value years of the summer extreme precipitation index,northern Shanxi is affected by a strong high-pressure ridge north of Lake *** is a downward motion anomaly at 500 hPa,and the northern Shanxi region lacks water *** cold and warm air cannot converge,and both the water vapor conditions

关键词： Northern Shanxi Extreme precipitation indices Spatio-temporal distribution and evolution Mutations Atmospheric circulation anomaly

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A compact X-band backward traveling-wave accelerating structure

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Nuclear Science and Techniques 2024年第5期35卷 13-29页

作者： Xian-cai lin Hao Zha Jia-Ru Shi Qiang Gao Fang-Jun Hu Qing-Zhu Li Huai-Bi Chen Department of Engineering Physics Tsinghua UniversityBeijing 100084China Key Laboratory of Particle and Radiation Imaging(Tsinghua University) Ministry of EducationBeijing 100084China

Very high-energy electrons(VHEEs)are potential candidates for FLASH radiotherapy for deep-seated *** proposed a compact VHEE facility based on an X-band high-gradient high-power *** this study,we investigated and realized the first X-band backward traveling-wave(BTW)accelerating structure as the buncher for a VHEE facility.A method for calculating the parameters of single cell from the field distribution was introduced to simplify the design of the BTW ***-domain circuit equations were applied to calculate the transient beam parameters of the buncher in the unsteady state.A prototype of the BTW structure with a thermionic cathode-diode electron gun was designed,fabricated,and tested at high power at the Tsinghua X-band high-power test *** structure successfully operated with 5-MW microwave pulses from the pulse compressor and outputted electron bunches with an energy of 8 MeV and a pulsed current of 108 mA.

关键词： Backward traveling-wave accelerating structure Equivalent circuit model High-power test Very high-energy electron radiotherapy

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Endorepellin downregulation promotes angiogenesis after experimental traumatic brain injury

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Neural Regeneration Research 2024年第5期19卷 1092-1097页

作者： Qian Zhang Yao Jing Qiuyuan Gong lin cai Ren Wang Dianxu Yang Liping Wang Meijie Qu Hao Chen Yaohui Tang Hengli Tian Jun Ding Zhiming Xu Department of Gerontology Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina Department of Neurosurgery Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina Department of Neurology Renji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina School of Biomedical Engineering and Med-X Research Institute Shanghai Jiao Tong UniversityShanghaiChina Department of Neurology Affiliated Hospital of Qingdao UniversityQingdaoShandong ProvinceChina

Endorepellin plays a key role in the regulation of angiogenesis,but its effects on angiogenesis after traumatic brain injury are *** study explored the effects of endorepellin on angiogenesis and neurobehavioral outcomes after traumatic brain injury in *** were randomly divided into four groups:sham,controlled cortical impact only,adeno-associated virus(AAV)-green fluorescent protein,and AAV-shEndorepellin-green fluorescent protein *** the controlled cortical impact model,the transduction of AAV-shEndorepellin-green fluorescent protein downregulated endorepellin while increasing the number of CD31+/Ki-67+proliferating endothelial cells and the functional microvessel density in mouse *** changes resulted in improved neurological function compared with controlled cortical impact *** blotting revealed increased expression of vascular endothelial growth factor and angiopoietin-1 in mice treated with AAV-shEndorepellin-green fluorescent *** radiation angiography showed that endorepellin downregulation promoted angiogenesis and increased cortical neovascularization,which may further improve neurobehavioral ***,an in vitro study showed that downregulation of endorepellin increased tube formation by human umbilical vein endothelial cells compared with a *** analysis found that endorepellin downregulation may mediate angiogenesis by activating vascular endothelial growth factor-and angiopoietin-1-related signaling pathways.

关键词： angiogenesis controlled cortical impact endorepellin neurological function traumatic brain injury

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Nurse anesthetists’perceptions and experiences of managing emergence delirium:A qualitative study

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World Journal of Psychiatry 2024年第4期14卷 553-562页

作者： Yi Xin Fu-cai lin Chen Huang Bin He Ya-ling Yan Shuo Wang Guang-Ming Zhang Rui Li Wuxi Medical College Jiangnan UniversityWuxi 214122Jiangsu ProvinceChina Department of Anesthesiology Tongren Hospital Shanghai Jiao Tong University School of MedicineShanghai 200335China Department of Nursing Tongren Hospital Shanghai Jiao Tong University School of MedicineShanghai 200335China

BACKGROUND This study employs a descriptive phenomenological approach to investigate the challenges anesthesia nurses face in managing emergence delirium(ED),a common and complex postoperative complication in the post-anesthesia care *** role of nurses in managing ED is critical,yet research on their understanding and management strategies for ED is *** To investigate anesthetic nurses’cognition and management experiences of ED in hopes of developing a standardized management *** This study employed a descriptive phenomenological approach from qualitative research *** sampling was utilized to select 12 anesthetic nurses from a tertiary hospital in Shanghai as research ***-structured interviews were conducted,and the data were organized and analyzed using Colaizzi’s seven-step analysis method,from which the final themes were *** After analyzing the interview content,four main themes and eight subthemes were distilled:Inefficient cognition hinders the identification of ED(conceptual ambiguity,empirical identification),managing diversity and challenges(patientcentered safe care,low level of medical-nursing collaboration),work responsibilities and pressure coexist(heavy work responsibilities,occupational risks and stress),demand for high-quality management(expecting the construction of predictive assessment tools and prevention strategies,and pursuing standardized management processes to enhance management effectiveness).CONCLUSION Nursing managers should prioritize the needs and suggestions of nurses in order to enhance their nursing capabilities and provide guidance for standardized management processes.

关键词： Anesthetic nurse Emergence delirium Postoperative complications Cognition Disease management Qualitative research

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AIGC可版权性认定的一般规则构建

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政法论丛 2024年第2期 138-150页

作者：蔡琳西北工业大学法学系陕西西安710076

以ChatGPT-4为代表的新一代生成式人工智能迅速普及,其“作品”的可版权性也备受争议。我国近期的AI文生图著作权侵权第一案,肯定了涉案AIGC“春风送来了温柔”的作品属性,无疑鼓舞了生成式人工智能的新业态。但个案裁判与规则化的认定... 详细信息

以ChatGPT-4为代表的新一代生成式人工智能迅速普及,其“作品”的可版权性也备受争议。我国近期的AI文生图著作权侵权第一案,肯定了涉案AIGC“春风送来了温柔”的作品属性,无疑鼓舞了生成式人工智能的新业态。但个案裁判与规则化的认定标准,在效力上仍然相距甚远,不应因此便盲目乐观。从制度上构建AIGC作品认定的一般规则,仍是新业态发展亟待解决的问题。在AIGC超强“智能性”旨在深度理解“人类指令”,并非缔造独立创作主体的逻辑前提下,还原生成式人工智能在新型“人机合作”中的“工具地位”。以“提示工程”代表“自然人创作”的法律定性为逻辑起点,准确开展AIGC可版权性一般规则的构建,确立AIGC专门作品类型,避免出现提示词输入等于画家创作的常识性悖论。

关键词：生成式人工智能 AIGC 可版权性一般规则

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算法科技伦理法制化的逻辑证成与建构进路

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法律科学（西北政法大学学报） 2024年第4期42卷 92-104页

作者：蔡琳西北工业大学法学系陕西西安710000

算法科技带来的新型伦理风险具有深远性、渗透性与严峻性,已超越传统计算机伦理所能约束的范围。算法科技伦理虽以成文化的形式彰显其强目标性,却囿于结构图谱中“外部性”与“内容”的结构性瑕疵,导致运行机制失灵。面对算法社会的新... 详细信息

算法科技带来的新型伦理风险具有深远性、渗透性与严峻性,已超越传统计算机伦理所能约束的范围。算法科技伦理虽以成文化的形式彰显其强目标性,却囿于结构图谱中“外部性”与“内容”的结构性瑕疵,导致运行机制失灵。面对算法社会的新型伦理风险,算法科技伦理的作用效能呈现出绠短汲深之势,原因在于算法科技伦理对外部结构的约束力较弱。欲实现算法科技伦理对算法行为的更好规制,就需要通过法律控制的思路以增强其外在约束力。在算法科技伦理日臻专门化、成文化、系统化的背景下,推动算法科技伦理的法治化以实现算法社会技术创新与风险遏制的“协同红利”,就成为最佳的路径选择。

关键词：算法科技伦理伦理风险法治化建构进路

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The marriage of immunomodulatory,angiogenic,and osteogenic capabilities in a piezoelectric hydrogel tissue engineering scafold for military medicine

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Military Medical Research 2024年第3期11卷 323-344页

作者： Ping Wu lin Shen Hui-Fan Liu Xiang-Hui Zou Juan Zhao Yu Huang Yu-Fan Zhu Zhao-Yu Li Chao Xu Li-Hua Luo Zhi-Qiang Luo Min-Hao Wu lin cai Xiao-Kun Li Zhou-Guang Wang Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research the Fifth Affiliated Hospital of Wenzhou Medical UniversityLishui 323000ZhejiangChina Oujiang Laboratory(Zhejiang Lab for Regenerative Medicine Vision and Brain Health)School of Pharmaceutical ScienceWenzhou Medical UniversityWenzhou 325000ZhejiangChina Department of Spine Surgery and Musculoskeletal Tumor Zhongnan Hospital of Wuhan UniversityWuhan 430071China National Engineering Research Center for Nanomedicine College of Life Science and TechnologyHuazhong University of Science and TechnologyWuhan 430074China Department of Overseas Education College Jimei UniversityXiamen 361021FujianChina School and Hospital of Stomatology Wenzhou Medical UniversityWenzhou 325035ZhejiangChina

Background:Most bone-related injuries to grassroots troops are caused by training or accidental *** establish preventive measures to reduce all kinds of trauma and improve the combat effectiveness of grassroots troops,it is imperative to develop new strategies and scafolds to promote bone ***:In this study,a porous piezoelectric hydrogel bone scafold was fabricated by incorporating polydopamine(PDA)-modified ceramic hydroxyapatite(PDA-hydroxyapatite,PHA)and PDA-modified barium titanate(PDABaTiO_(3),PBT)nanoparticles into a chitosan/gelatin(Cs/Gel)*** physical and chemical properties of the Cs/Gel/PHA scafold with 0–10 wt%PBT were *** and animal experiments were performed to characterize the immunomodulatory,angiogenic,and osteogenic capabilities of the piezoelectric hydrogel scafold in vitro and in ***:The incorporation of BaTiO_(3) into the scafold improved its mechanical properties and increased self-generated *** to their endogenous piezoelectric stimulation and bioactive constituents,the prepared Cs/Gel/PHA/PBT hydrogels exhibited cytocompatibility as well as immunomodulatory,angiogenic,and osteogenic capabilities;they not only effectively induced macrophage polarization to M2 phenotype but also promoted the migration,tube formation,and angiogenic differentiation of human umbilical vein endothelial cells(HUVECs)and facilitated the migration,osteodifferentiation,and extracellular matrix(ECM)mineralization of MC3T3-E1 *** in vivo evaluations showed that these piezoelectric hydrogels with versatile capabilities significantly facilitated new bone formation in a rat large-sized cranial injury *** underlying molecular mechanism can be partly attributed to the immunomodulation of the Cs/Gel/PHA/PBT hydrogels as shown via transcriptome sequencing analysis,and the PI3K/Akt signaling axis plays an important role in regulating macrophage M2 ***:The piezoelectric Cs/Gel/PHA/PBT hy

关键词： Piezoelectric hydrogel Tissue engineering scafold Immunomodulation Angiogenesis Osteogenic differentiation

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Coupling of quasi-localized and phonon modes in glasses at low frequency

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Chinese Physics B 2024年第5期33卷 564-571页

作者：段军蔡松林丁淦戴兰宏蒋敏强 State Key Laboratory of Nonlinear Mechanics Institute of MechanicsChinese Academy of SciencesBeijing 100190China School of Engineering Science University of Chinese Academy of SciencesBeijing 101408China

Boson peak of glasses,a THz vibrational excess compared to Debye squared-frequency law,remains mysterious in condensed-matter physics and material *** appears in many different kinds of glassy matters and is also argued to exist in damped crystals.A consensus is that boson peak originates from the coupling of the(quasi)-localized non-phonon modes and the plane-wave-like phonon modes,but the coupling behavior is still not fully *** this paper,by modulating the content of localized modes and the frequencies of phonon modes,the coupling is clearly reflected in the localization and anharmonicity of low-frequency vibrational *** coupling enhances with increasing cooling rate and sample *** finite sample size,phonon modes do not fully intrude into the low frequency to form a dense spectrum and they are not sufficiently coupled to the localized modes,thus there is no Debye level and boson peak is *** suggestion remains valid in the presence of thermal motions induced by temperature,even though the anharmonicity comes into *** results point to the coupling of quasi-localized and phonon modes and its relation to the boson peak.

关键词： metallic glasses low-frequency vibrational modes plane wave boson peak

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轨道交通运营风险事件的事理图谱构建及演化分析

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中国安全生产科学技术 2024年第4期20卷 12-19页

作者：许慧蔡林重庆邮电大学经济管理学院重庆400065 重庆邮电大学理学院重庆400065

为厘清轨道交通运营风险中碎片化、口语化事件信息的演化逻辑,以轨道交通运营风险事件新闻中的部分内容作为数据源,抽取事件信息和事件关系,通过Neo4j构建轨道交通运营风险事件的事理图谱,进而利用Bert模型、层次聚类和莱文斯坦距离对... 详细信息

为厘清轨道交通运营风险中碎片化、口语化事件信息的演化逻辑,以轨道交通运营风险事件新闻中的部分内容作为数据源,抽取事件信息和事件关系,通过Neo4j构建轨道交通运营风险事件的事理图谱,进而利用Bert模型、层次聚类和莱文斯坦距离对风险事件进行泛化,并进一步梳理得出泛化事件的逻辑关系,由此得到轨道交通运营风险事件的演化路径和发展方向。研究结果表明:层次聚类方法中轮廓系数大于0.9,本文方法具有可行性。研究结果可为轨道交通运营风险防范及应急决策选择提供参考和支持。

关键词：轨道交通运营风险事件事理图谱 Bert模型层次聚类事件泛化

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Bowel preparation experiences and needs before follow-up colonoscopy in older adult postoperative colorectal cancer patients: A qualitative study

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World Journal of Gastrointestinal Surgery 2024年第9期16卷 2968-2978页

作者： Bin He Yi Xin Rui Li Fu-cai lin Guang-Ming Zhang Hai-Jing Zhu Wuxi Medical College The Jiangnan UniversityWuxi 214122Jiangsu ProvinceChina Department of Nursing The Tongren Hospital Shanghai Jiao Tong University School of MedicineShanghai 200335China Department of Anesthesiology The Tongren Hospital Shanghai Jiao Tong University School of MedicineShanghai 200335China Department of Endoscopy The Tongren Hospital Shanghai Jiao Tong University School of MedicineShanghai 200335China

BACKGROUND The bowel preparation process prior to colonoscopy determines the quality of the bowel preparation,which in turn affects the quality of the ***-scopy is an essential procedure for postoperative follow-up monitoring of colorec-tal cancer(CRC)*** studies have shown that advanced age and a history of colorectal resection are both risk factors for inadequate bowel ***,little attention has been paid to the bowel preparation experiences and needs of predominantly older adult postoperative CRC *** To explore the experiences and needs of older adult postoperative CRC patients during bowel preparation for follow-up *** Fifteen older adult postoperative CRC patients who underwent follow-up colonoscopy at a tertiary hospital in Shanghai were selected using purposive sampling from August 2023 to November *** phenomenological method in qualitative research was employed to construct an interview outline and conduct semi-structured interviews with the ***'s seven-step analysis was utilized to organize,code,categorize,summarize,and verify the interview *** The results of this study were summarized into four themes and eight sub-themes:(1)Inadequate knowledge about bowel preparation;(2)Decreased physiological comfort during bowel preparation(gastrointestinal discomfort and sleep deprivation caused by bowel cleansing agents,and hunger caused by dietary restrictions);(3)Psychological changes during different stages of bowel preparation(pre-preparation:Fear and resistance due to previous experiences;during preparation:Irritation and helplessness caused by taking bowel cleansing agents,and post-preparation:Anxiety and worry while waiting for the colonoscopy);and(4)Needs related to bowel preparation(detailed instructions from healthcare professionals;more ideal bowel cleansing agents;and shortened waiting times for colonoscopy).CONCLUSION Older adult postoperative CRC patients'kn

关键词： Older people Colorectal cancer Colonoscopy Bowel preparation Health promotion Nursing Qualitative research

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