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Diagnosing ratio of electron density to collision frequency of plasma surrounding scaled model in a shock tube using low-frequency alternating magnetic field phase shift

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Chinese Physics B 2024年第5期33卷 519-530页

作者：吴明兴谢楷刘艳徐晗张宝田得阳 School of Aerospace Science and Technology Xidian UniversityXi'an 710071China Hypervelocity Aerodynamics Institute China Aerodynamics Research and Development CenterMianyang 621000China

A non-contact low-frequency(LF)method of diagnosing the plasma surrounding a scaled model in a shock tube is *** method utilizes the phase shift occurring after the transmission of an LF alternating magnetic field through the plasma to directly measure the ratio of the plasma loop average electron density to collision *** equivalent circuit model is used to analyze the relationship of the phase shift of the magnetic field component of LF electromagnetic waves with the plasma electron density and collision *** applicable range of the LF method on a given plasma scale is *** upper diagnostic limit for the ratio of the electron density(unit:m^(-3))to collision frequency(unit:Hz)exceeds 1×10^(11),enabling an electron density to exceed 1×10^(20)m^(-3)and a collision frequency to be less than 1 *** this work,the feasibility of using the LF phase shift to implement the plasma diagnosis is also *** experiments on shock tube equipment are conducted by using both the electrostatic probe method and LF *** comparing the diagnostic results of the two methods,the inversion results are relatively consistent with each other,thereby preliminarily verifying the feasibility of the LF *** ratio of the electron density to the collision frequency has a relatively uniform distribution during the plasma *** LF diagnostic path is a loop around the model,which is suitable for diagnosing the plasma that surrounds the ***,the causes of diagnostic discrepancy between the two methods are *** proposed method provides a new avenue for diagnosing high-density enveloping plasma.

关键词： low-frequency alternating magnetic field phase shift shock-tube plasma diagnosis electron density collision frequency

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Investigation of the Petrological and Geochemical Characteristics of Siderite in the Early Cretaceous Sandstone of Lacustrine Sedimentary Sequence in the Erlian Basin from Northeastern China

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Journal of Geoscience and Environment Protection 2024年第6期12卷 305-321页

作者： Yunlong Zhang Mingming tian Huili xie Xide Li Wusheng Liu Shiqi Ni Beijing Research Institute of Uranium Geology Beijing China

Siderite is a prevalent authigenic mineral in siliciclastic rocks, which usually occurred in eodiagensis period and could be used as an indicator of sedimentary environment. Some siderite precipitated in burial depth with geochemical information of basin fluid evolution. The crystal morphology, geochemical composition, and isotope values are influenced by physical and geochemical environment of precipitation. In this study, samples from the Early Cretaceous of Erlian basin in the northwestern China were collected, and mineralogy, bulk and in-situ geochemistry, C and O isotopes were analyzed to comprehensively investigate the sedimentary and diagenetic environment that the sediments experienced. Six lithofaices with three types of crystal habits were recognized in the siderite-rich sandstone, bundle crystal in spherical forms, blocky rhombs in intergranular pore and cleavage of muscovite, and micro bundle and mosaic crystals aggregates in nodular. The siderite growth proceeds through micro bundle and mosaic crystals to bundle siderite aggregates and then into blocky rhombs. The crystal evolution is also reflected by geochemical composition. The micro bundle and mosaic crystals are Casiderite. The spheritic shaped bundle aggregates are Ca-Mn-siderite. The blocky rhomb siderite shows gray part and bight part with Ca, Mg and Mn varies. Increase of Ca in block rhomb siderite suggests burial and mesodiagenesis, the high content of Mn may have linkage with eogenetic effects. The relatively positive and slightly negative δ13C value indicates meteoric water domination and influence of organic matter evolution in shallow buried time. The narrow ranges negative δ18O value suggest a small span of temperature of siderite formation.

关键词： Siderite Sedimentary Environment Lacustrine Deposition Early Cretaceous Erlian Basin

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Diagnostic value of serum vascular endothelial growth factor and interleukin-17 in primary hepatocellular carcinoma

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World Journal of Gastrointestinal Surgery 2024年第9期16卷 2934-2941页

作者： Qi tian Hui Zeng Qi-Quan Lu Hai-Ying xie Yong Li Clinical Laboratory Hanyang Hospital Affiliated to Wuhan University of Science and Technology/Wuhan Hanyang HospitalWuhan 430050Hubei ProvinceChina Clinical Laboratory Wuhan Seventh HospitalWuhan 430071Hubei ProvinceChina Department of Oncology Hematology Hanyang Hospital Affiliated to Wuhan University of Science and TechnologyWuhan 430050Hubei ProvinceChina

BACKGROUND Despite significant advancements in the medical treatment of primary hepato-cellular carcinoma(PHC)in recent years,enhancing therapeutic effects and im-proving prognosis remain substantial challenges *** To investigate the expression levels of serum vascular endothelial growth factor(VEGF)and interleukin(IL)-17 in patients with PHC and evaluate their diagnostic value while exploring their relationship with patients’clinical *** The study included 50 patients with confirmed PHC who visited Wuhan Han-yang Hospital from January 2021 to January 2022,and 50 healthy individuals from the same period served as the control *** VEGF and IL-17 levels in both groups were measured by Enzyme-Linked Immunosorbent Assay,and their diagnostic value was assessed using receiver operating characteristic(ROC)*** correlation analysis was performed to examine the relationship between serum VEGF and IL-17 *** data of the PHC patients were analyzed to determine the relationship between serum VEGF and IL-17 levels and pathological *** Serum VEGF and IL-17 levels were significantly higher in the study group com-pared to the control group(P0.05).However,there was a significant relationship between clinical TNM stage,tumor metastasis,and serum VEGF and IL-17 levels(P<0.05).Correlation analysis revealed a positive correlation between serum VEGF and IL-17(P<0.05).ROC analysis demonstrated that both serum VEGF and IL-17 had good diagnostic efficacy for *** Serum VEGF and IL-17 levels were significantly higher in PHC patients compared to healthy *** levels were closely related to pathological features such as tumor metastasis and clinical TNM stage,and there was a significant positive correlation between VEGF and IL-17.T

关键词： Primary liver cancer Vascular endothelial growth factor Interleukin-17 Serum level Diagnostic value Cor-relation

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生态文明教育对企业环保投资与经济绩效的影响

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山西财经大学学报 2024年第S1期46卷 139-141页

作者：刘甜甜李佩芹东北林业大学马克思主义学院黑龙江哈尔滨150040

探讨生态文明教育对企业环保投资与经济绩效的影响,揭示其对企业环保意识的引导作用,以及环保投资对经济绩效的积极影响。结果表明:生态文明教育鼓励企业加强环保投资,塑造绿色企业形象,从而提升品牌价值,增强创新竞争力,实现经济效益... 详细信息

探讨生态文明教育对企业环保投资与经济绩效的影响,揭示其对企业环保意识的引导作用,以及环保投资对经济绩效的积极影响。结果表明:生态文明教育鼓励企业加强环保投资,塑造绿色企业形象,从而提升品牌价值,增强创新竞争力,实现经济效益与环境保护的双赢。研究旨在激发社会各界对环保意识的重视,呼吁积极参与生态文明建设,共同构建绿色、环保、可持续的美好明天。

关键词：生态文明教育企业环保投资企业经济绩效

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Effect of Luhong formula on the cardiac rehabilitation of patients with chronic heart failure

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World Journal of Clinical Cases 2024年第17期12卷 3027-3034页

作者： Ji-Jie Xu Jian Dai Qi-Hai xie pei-Chao Du Cha Li Hua Zhou Department of Cardiology&Cardiovascular Research Institute Shanghai Baoshan District Hospital of Integrated Traditional Chinese and Western MedicineShanghai 201999China

BACKGROUND Current treatments for chronic heart failure(CHF)are therapeutically *** optimization of treatments for this disease needs to be explored and *** To analyze the effect of using Luhong Formula in the cardiac rehabilitation of patients with CHF and its influence on cardiopulmonary function(CPF)and *** In total,160 patients with CHF admitted between June 2022 and June 2023 were selected,including 75 receiving perindopril(control group)and 85 receiving Luhong Formula(research group).We conducted comparative analyses on the curative effects of traditional Chinese medicine(TCM)syndromes and cardiac function,CPF[oxygen consumption at the anaerobic threshold(VO2 AT)and at peak exercise(peak VO2)],echocardiographic indexes[left atrial volume index(LAVI),left ventricular muscle mass index(LVMI),left ventricular ejection fraction(LVEF)],and prognosis[major adverse cardiovascular events(MACEs)at 6 months follow-up].RESULTS The research group showed markedly higher curative effects of TCM syndromes and cardiac function than the control *** addition,post-treatment VO2 AT,peak VO2,LVMI and LVEF in the research group were significantly higher,whereas LAVI was significantly lower,than those of the control ***,fewer patients in the research group developed MACEs at the 6-month *** Luhong Formula is more therapeutically effective than perindopril for the cardiac rehabilitation of patients with CHF,specifically in enhancing CPF and prognosis.

关键词： Luhong formula Chronic heart failure Cardiopulmonary function Cardiac rehabilitation Prognosis

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子宫内膜异位症生育力保存现状

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中国实用妇科与产科杂志 2024年第5期40卷 506-509页

作者：裴天骄黄薇四川大学华西第二医院生殖医学科、四川大学华西第二医院出生缺陷与相关妇儿疾病教育部重点实验室、国家卫生健康委时间生物学重点实验室(四川大学) 四川成都610041

子宫内膜异位症(简称内异症)是常见的良性妇科疾病,威胁女性生殖健康,降低患者生育力。因此,对于严重的内异症或者复发的卵巢子宫内膜异位囊肿患者进行生育力保存意义重大。文章回顾内异症患者的生育力保存策略及现状,旨在为内异症的临... 详细信息

子宫内膜异位症(简称内异症)是常见的良性妇科疾病,威胁女性生殖健康,降低患者生育力。因此,对于严重的内异症或者复发的卵巢子宫内膜异位囊肿患者进行生育力保存意义重大。文章回顾内异症患者的生育力保存策略及现状,旨在为内异症的临床诊治决策提供重要的参考。

关键词：子宫内膜异位症生育力保存胚胎冷冻卵母细胞冷冻卵巢组织冷冻

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Comparative analysis of two digestive tract reconstruction methods in total laparoscopic radical total gastrectomy

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World Journal of Gastrointestinal Surgery 2024年第4期16卷 1109-1120页

作者： tian-Xiang Dong Dong Wang Qun Zhao Zhi-Dong Zhang Xue-Feng Zhao Bi-Bo Tan Yu Liu Qing-Wei Liu pei-Gang Yang Ping-An Ding Tao Zheng Yong Li Zi-Jing Liu Third Department of Surgery of the Fourth Hospital of Hebei Medical University Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric CancerShijiazhuang 050011Hebei ProvinceChina

BACKGROUND The incidence of gastric cancer has significantly increased in recent *** resection is the main treatment,but the method of digestive tract reconstruction after gastric cancer surgery remains *** the current study,we sought to explore a reasonable method of digestive tract reconstruction and improve the quality of life and nutritional status of patients after *** this end,we statistically analyzed the clinical results of patients with gastric cancer who underwent jejunal interposition double-tract reconstruction(DTR)and esophageal jejunum Roux-en-Y reconstruction(RY).AIM To explore the application effect of DTR in total laparoscopic radical total gastrectomy(TLTG)and evaluate its safety and *** We collected the relevant data of 77 patients who underwent TLTG at the Fourth Hospital of Hebei Medical University from October 2021 to January *** them,35 cases were treated with DTR,and the remaining 42 cases were treated with traditional *** 1:1 propensity score matching,the cases were grouped into 31 cases per group,with evenly distributed *** clinical characteristics and short-and long-term clinical outcomes of the two groups were statistically *** The two groups showed no significant differences in basic data,intraoperative blood loss,number of lymph node dissections,first defecation time after operation,postoperative hospital stay,postoperative complications,and laboratory examination results on the 1st,3rd,and 5th days after *** operation time of the DTR group was longer than that of the RY group[(307.58±65.14)min vs(272.45±62.09)min,P=0.016],but the first intake of liquid food in the DTR group was shorter than that in the RY group[(4.45±1.18)d vs(6.0±5.18)d,P=0.028].The incidence of reflux heartburn(Visick grade)and postoperative gallbladder disease in the DTR group was lower than that in the RY group(P=0.033 and P=0.038).Although there was no significant difference in bod

关键词： Gastric cancer Jejunal interposition double-tract reconstruction Roux-en-Y reconstruction Laparoscope

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Copper-based nanocatalysts toward chemoselective hydrogenation reaction

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cMat 2024年第1期1卷 1-9页

作者： Hui Guo Ling-Jun pei Shao-Lei xie Meng-Qi Shen Yong Yang Hu Liu Key Laboratory of Green and High-End Utilization of Salt Lake Resources Qinghai Institute of Salt LakesChinese Academy of SciencesXiningChina School of Chemistry and Chemical Engineering Xi'an University of Architecture and TechnologyXi'anChina Lenfest Center for Sustainable Energy Columbia UniversityNew YorkNew YorkUSA State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal MaterialsNorthwestern Polytechnical UniversityXi'anShaanxiChina

Cu-based catalysts are widely used in various heterogeneous catalytic reaction systems,the precise control of their electronic structure is an intrinsic require-ment for the rational design of metal catalysts,and it is also an important basis for clarifying their structure-activity *** the electronic structure of Cu-based catalysts is an important way to improve the catalytic hydrogenation performance of Cu-based catalysts by controlling the adsorption intensity be-tween the reaction adsorbate and the active *** this paper,the application of selective hydrogenation of Cu-based catalysts is reviewed,with a special emphasis on the selective catalytic hydrogenation reduction of p-nitrostyrene and CO_(2).This review particularly emphasizes the application of Cu-based catalysts in the field of selective hydrogenation and discusses the influence of their different properties on selective hydrogenation performance.

关键词： copper nanocatalysts nitro compounds selective hydrogenation

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鸡嗉子榕传粉榕小蜂表皮碳氢化合物的性二型及季节变化

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生物多样性 2024年第6期32卷 36-46页

作者：谢华杨培李宗波西南林业大学林学院昆明650224 云南中医药大学研究生处昆明650500 西南林业大学西南山地森林资源保育与利用教育部重点实验室昆明650224

生存与繁殖对生物体维持和延续种群数量稳定至关重要。表皮碳氢化合物具有维持昆虫水分平衡和信息通讯的双重功能,目前对于昆虫在不同气候条件下如何权衡防脱水与保持化学信号可靠性的潜在冲突尚不清楚。本文以寄生于鸡嗉子榕(Ficus sem... 详细信息

生存与繁殖对生物体维持和延续种群数量稳定至关重要。表皮碳氢化合物具有维持昆虫水分平衡和信息通讯的双重功能,目前对于昆虫在不同气候条件下如何权衡防脱水与保持化学信号可靠性的潜在冲突尚不清楚。本文以寄生于鸡嗉子榕(Ficus semicordata)雄花期果内的传粉榕小蜂窝榕小蜂(Ceratosolen gravelyi)为研究对象,利用气相色谱-质谱联用仪(GC-MS)解析雨季、雾凉季和干热季中雌、雄成虫表皮碳氢化合物的种类及含量,运用非度量多维尺度排序、相似性分析、置换多元方差分析和随机森林等方法分析了窝榕小蜂表皮碳氢化合物对不同季节变化的响应机制。结果表明:(1)窝榕小蜂表皮碳氢化合物由34种C7–C44的化合物组成,包括正链烷烃、甲基烷烃、烯烃和甲基烯烃;其中角鲨烯(squalene)、2-甲基二十八烷(2-Me-C28)、正三十四烷(n-C34)、正三十六烷(n-C36)和正四十四烷(n-C44)为主要成分(>5%)。(2)不同性别窝榕小蜂表皮碳氢化合物的组成及含量存在显著差异,正四十二烷(n-C42)、17-三十五烯(17-C35:1)、1-二十九烯(C29:1)、2-Me-C28和角鲨烯是造成两性差异的重要贡献量化合物。(3)雌、雄成虫表皮碳氢化合物均具有明显的季节变化:在干热季中,雌蜂正链烷烃(n-C34、n-C36和n-C44)的比例及碳氢化合物的总绝对含量增加,2-Me-C28和角鲨烯的比例降低;雄蜂甲基烯烃的比例增加,正链烷烃和甲基烷烃的比例降低,碳氢化合物总绝对含量无明显变化。本研究发现窝榕小蜂表皮碳氢化合物具有明显的性二型和强烈的季节可塑性,2-Me-C28和角鲨烯可作为雄蜂配偶识别时的候选性信息素;雌、雄成虫在适应高温和/或干燥的气候条件时存在差异化响应,表明窝榕小蜂两性表皮碳氢化合物在不同季节变化中采取不同的适应性策略。本研究揭示了榕小蜂应对不同气候环境的化学适应机制,为研究昆虫双重性状和理解生态适应与物种形成之间的功能联系奠定了化学基础。

关键词：鸡嗉子榕传粉榕小蜂表皮碳氢化合物性二型季节适应性

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Functional dissection of parabrachial substrates in processing nociceptive information

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Zoological Research 2024年第3期45卷 633-647页

作者： Jin Ke Wei-Cheng Lu Hai-Yang Jing Shen Qian Sun-Wook Moon Guang-Fu Cui Wei-Xin Qian Xiao-Jing Che Qian Zhang Shi-Shi Lai Ling Zhang Ying-Jie Zhu Jing-Dun xie tian-Wen Huang Shenzhen Key Laboratory of Drug Addiction Shenzhen-Hong Kong Institute of Brain ScienceBrain Cognition and Brain Disease InstituteShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong 518055China CAS Key Laboratory of Brain Connectome and Manipulation Brain Cognition and Brain Disease InstituteShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong 518055China University of Chinese Academy of Sciences Beijing 100049China Department of Anesthesiology State Key Laboratory of Oncology in South ChinaGuangdong Provincial Clinical Research Center for CancerSun Yat-sen University Cancer CenterGuangzhouGuangdong 510060China University of Science and Technology of China HefeiAnhui 230027China Department of Anesthesiology Shenzhen University General Hospital and Shenzhen University Academy of Clinical Medical SciencesShenzhen UniversityShenzhenGuangdong 518055China School of Medicine Yunnan UniversityKunmingYunnan 650091China

Painful stimuli elicit first-line reflexive defensive reactions and,in many cases,also evoke second-line recuperative behaviors,the latter of which reflects the sensing of tissue damage and the alleviation of *** lateral parabrachial nucleus(lPBN),composed of external-(elPBN),dorsal-(dlPBN),and central/superior-subnuclei(jointly referred to as slPBN),receives sensory inputs from spinal projection neurons and plays important roles in processing affective information from external threats and body integrity ***,the organizational rules of lPBN neurons that provoke diverse behaviors in response to different painful stimuli from cutaneous and deep tissues remain *** this study,we used region-specific neuronal depletion or silencing approaches combined with a battery of behavioral assays to show that slPBN neurons expressing substance P receptor(NK1R)(lPBNNK1R)are crucial for driving pain-associated self-care behaviors evoked by sustained noxious thermal and mechanical stimuli applied to skin or bone/muscle,while elPBN neurons are dispensable for driving such ***,lPBNNK1R neurons are specifically required for forming sustained somatic pain-induced negative teaching signals and aversive memory but are not necessary for fear-learning or escape behaviors elicited by external ***,both lPBNNK1R and elPBN neurons contribute to chemical irritant-induced nocifensive *** results reveal the functional organization of parabrachial substrates that drive distinct behavioral outcomes in response to sustained pain versus external danger under physiological conditions.

关键词： Lateral parabrachial nucleus Substance P receptor Pain affect Defensive reaction Somatosensory

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