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塑料管中氧化-气相分子吸收光谱法测定水中氨氮

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环境监测管理与技术 2008年第2期20卷 38-40页

作者：吴卓智莫怡玉湛江市海洋与渔业环境监测站广东湛江524039

建立了塑料管中氧化-气相分子吸收光谱测定水中氨氮的方法，消除了玻璃容器中杂质的干扰。方法空白值低，检出限为0．006mg／L，测定实际水样的精密度≤3.0％，加标回收率为98.4％～104％，与次溴酸盐氧化-分光光度法作比对，结果基本... 详细信息

建立了塑料管中氧化-气相分子吸收光谱测定水中氨氮的方法，消除了玻璃容器中杂质的干扰。方法空白值低，检出限为0．006mg／L，测定实际水样的精密度≤3.0％，加标回收率为98.4％～104％，与次溴酸盐氧化-分光光度法作比对，结果基本一致。

关键词：塑料管氧化气相分子吸收光谱法氨氮水质

超声实时引导与传统颈内静脉置管术在肿瘤患者中的应用价值比较

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中国全科医学 2011年第32期14卷 3745-3747页

作者：黄小珍高铭云莫乙瑜广西柳州市肿瘤医院 545006

目的比较超声实时引导与传统颈内静脉置管术在肿瘤患者中应用的成功率、穿刺并发症及置管操作时间。方法将132例拟实施颈内静脉穿刺置管术行化疗的肿瘤患者随机分为传统组(67例)和超声组(65例),前者采用传统解剖标志法盲穿置管,后者在... 详细信息

目的比较超声实时引导与传统颈内静脉置管术在肿瘤患者中应用的成功率、穿刺并发症及置管操作时间。方法将132例拟实施颈内静脉穿刺置管术行化疗的肿瘤患者随机分为传统组(67例)和超声组(65例),前者采用传统解剖标志法盲穿置管,后者在彩色多普勒超声引导下穿刺置管。结果超声组和传统组患者的一次性穿刺成功率(100.0%与86.6%)、并发症发生率(0与13.4%)、平均操作时间〔(4.8±2.6)min与(7.7±2.0)min〕比较,差异均有统计学意义(P<0.01)。结论超声引导下的颈内静脉置管简便、安全,成功率高,并发症少,可缩短穿刺时间,在肿瘤患者化疗中有应用和推广价值。

关键词：导管插入术,中心静脉超声实时引导肿瘤化疗颈内静脉

Lipomatous ependymoma with ZFTA:RELA fusion-positive:A case report

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World Journal of Clinical Cases 2025年第1期13卷 48-55页

作者： Xiao-yu Zhao Juan-Han yu yi-Hua Wang yi-Xin Liu Lu Xu Lin Fu Ning yi China Medical University The First Hospital of China Medical UniversityShenyang 110001Liaoning ProvinceChina Department of Pathology The First Hospital of China Medical UniversityShenyang 110001Liaoning ProvinceChina Anshan Cancer Hospital Anshan 114000Liaoning ProvinceChina

BACKGROUND Ependymoma with lipomatous differentiation is a rare type of *** ZFTA fusion-positive supratentorial ependymoma is a novel tumor type in the 2021 World Health Organization classification of central nervous system *** fusion-positive lipomatous ependymoma has not been reported to *** SUMMARY We reported a case of a 15-year-old Chinese male who had a sudden convulsion lasting approximately six *** resonance imaging showed a round cystic shadow of approximately 1.9 cm×1.5 cm×1.9 cm under the right parieto-occipital *** examination showed characteristic perivascular pseudorosettes and adipose differentiation in the ***-chemical staining showed that the tumor cells were negative for cytokeratin,NeuN,Syn and p53,but positive for GFAP,vimentin and S-100 ***-ficant punctate intracytoplasmic EMA immunoreactivity was *** level of Ki-67 was about 5%.Genetic analysis revealed ZFTA:RELA fusion.A cranio-tomy with total excision of the tumor was *** follow-up time was 36 months,no evidence of disease recurrence was found in magnetic resonance *** Based on these findings,the patient was diagnosed as a ependymoma with ZFTA fusion and lipomatous *** case report provides information on the microscopic morphological features of ependymoma with ZFTA fusion and lipomatous differentiation,which can help pathologists to make a definitive diagnosis of this tumor.

关键词： Ependymoma Lipomatous molecular classification Supratentorial ZFTA:RELA fusion Case report

吉西他滨联合奥沙利铂治疗耐药性晚期乳腺癌的护理体会

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中国保健营养（下半月） 2013年第1期23卷 199-200页

作者：莫乙瑜高铭云广西柳州肿瘤医院肿瘤内科

目的探讨耐药性晚期乳腺癌应用吉西他滨联合奥沙利铂治疗的临床护理。方法对我科2009年11月——2012年3月69例耐药性晚期乳腺癌患者,实施吉西他滨联合奥沙利铂治疗:第1和第8天给吉西他滨1000mg/m2静脉滴注,第2天给奥沙利铂针:100mg/m2... 详细信息

目的探讨耐药性晚期乳腺癌应用吉西他滨联合奥沙利铂治疗的临床护理。方法对我科2009年11月——2012年3月69例耐药性晚期乳腺癌患者,实施吉西他滨联合奥沙利铂治疗:第1和第8天给吉西他滨1000mg/m2静脉滴注,第2天给奥沙利铂针:100mg/m2静脉滴注,21天为一个疗程。化疗期间针对患者出现骨髓抑制、外周神经毒性、恶心及呕吐,皮疹等毒副作用,采取相应护理措施。结果 69例乳腺癌患者均完成了全程化疗,疗效好,副作用小。结论采取科学有效的护理措施,能满足患者对治疗的依从性,降低化疗并发症的发生率,提高患者维护自身健康的能力,延长患者的生命,提高生活质量。

关键词：耐药性乳腺癌晚期吉西他滨奥沙利铂化疗护理

Single-cell transcriptomic profiling reveals ZEB1-mediated regulation in microglial subtypes and the impact of exercise on neuroinflammatory responses

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Traditional Medicine Research 2025年第2期10卷 55-64页

作者： Jin-Fang Wu yi-Sheng Chen yu-Chun Xie Department of Rehabilitation Medicine Jiangsu Province Geriatric HospitalNanjing 210024China Fujian Key Laboratory of Toxicant and Drug Toxicology Medical CollegeNingde Normal UniversityNingde 352100China Central Laboratory Jiangsu Province Geriatric HospitalNanjing 210024China

Background:This study aims to identify distinct cellular subtypes within brain tissue using single-cell transcriptomic analysis,focusing on specific biomarkers that differentiate cell types and the effects of traditional and exercise ***:Four samples were analyzed:older control(OC),older exercise(OE),younger control(YC),and younger exercise(YE).Single-cell RNA sequencing was used to distinguish cellular subtypes through their biomarker *** visualization included violin and t-SNE plots to illustrate biomarker expression across cell clusters such as oligodendrocytes,microglia,and ***,BV2 cells were exposed to amyloid-beta fragments to simulate Alzheimer’s disease,assessing the impact of exercise-induced cellular ***:Distinct cellular subtypes were identified:oligodendrocytes(MBP,St18),microglia(Dock8),and astrocytes(Aqp4,Gpc5).Sample OE was predominantly oligodendrocytes,while YE had more astrocytes,inhibitory neurons,and Canal-Retzius *** showed a significant presence of Olfm3+ganglion ***1 gene knockout revealed changes in SMAD family gene expression,which regulate *** stress levels were also ***:This profiling enhances our understanding of brain cellular functions and interactions,potentially informing targeted therapies in neurological *** may influence brain cell immune responses and cell death pathways by regulating specific gene expressions,offering new insights for treating neuroinflammation and degeneration.

关键词： single-cell transcriptomics brain tissue cellular subtypes biomarker expression neuronal diversity

Comparative analysis of empirical and deep learning models for ionospheric sporadic E layer prediction

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Earth and Planetary Physics 2025年第1期9卷 10-19页

作者： BingKun yu PengHao Tian XiangHui Xue Christopher JScott HaiLun Ye JianFei Wu Wen yi TingDi Chen XianKang Dou Institute of Deep Space Sciences Deep Space Exploration LaboratoryHefei 230088China CAS Key Laboratory of Geospace Environment School of Earth and Space SciencesUniversity of Science and Technology of ChinaHefei 230026China Hefei National Laboratory University of Science and Technology of ChinaHefei 230088China Department of Meteorology University of ReadingReading RG66BBUK

Sporadic E(Es)layers in the ionosphere are characterized by intense plasma irregularities in the E region at altitudes of 90-130 *** they can significantly influence radio communications and navigation systems,accurate forecasting of Es layers is crucial for ensuring the precision and dependability of navigation satellite *** this study,we present Es predictions made by an empirical model and by a deep learning model,and analyze their differences comprehensively by comparing the model predictions to satellite RO measurements and ground-based ionosonde *** deep learning model exhibited significantly better performance,as indicated by its high coefficient of correlation(r=0.87)with RO observations and predictions,than did the empirical model(r=0.53).This study highlights the importance of integrating artificial intelligence technology into ionosphere modelling generally,and into predicting Es layer occurrences and characteristics,in particular.

关键词： ionospheric sporadic E layer radio occultation ionosondes numerical model deep learning model artificial intelligence

Identifying the dynamic behaviors in complete reconstruction of Co-based complex precatalysts during electrocatalytic oxygen evolution

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Journal of Energy Chemistry 2025年第1期100卷 226-233页

作者： Jingfang Zhang Danyang Wu Linke Cai Youluan Lu Fanpeng Cheng Lijuan Shi Qun yi Yao Liu yi Huang Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Hubei Key Laboratory of Novel Reactor and Green Chemical Technology School of Chemical Engineering & Pharmacy Wuhan Institute of Technology Key Laboratory of Pesticide & Chemical Biology of Ministry of Education Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education College of Chemistry Central China Normal University College of Materials Science and Engineering Fuzhou University

Transition metal-based nanomaterials have emerged as promising electrocatalysts for oxygen evolution reaction（OER）. Considerable research efforts have shown that self-reconstruction occurs on these nanomaterials under operating conditions of OER process. However, most of them undergo incomplete reconstruction with limited thickness of reconstruction layer, leading to low component utilization and arduous exploration of real catalytic mechanism. Herein, we identify the dynamic behaviors in complete reconstruction of Co-based complexes during OER. The hollow phytic acid（PA） cross-linked CoFe-based complex nanoboxes with porous nanowalls are designed because of their good electrolyte penetration and mass transport ability, in favor of the fast and complete reconstruction. A series of experiment characterizations demonstrate that the reconstruction process includes the fast substitution of PA by OH-to form Co（Fe）(OH)xand subsequent potential-driven oxidation to Co（Fe）OOH. The obtained CoFeOOH delivers a low overpotential of 290 mV at a current density of 10 mA cm-2and a long-term *** experiment results together with theory calculations reveal that the Fe incorporation can result in the electron rearrangement of reconstructed CoFeOOH and optimization of their electronic structure,accounting for the enhanced OER activity. The work provides new insights into complete reconstruction of metal-based complexes during OER and offers guidelines for rational design of high-performance electrocatalysts.

关键词： Complete reconstruction Co-based complex Precatalysts Oxygen evolution reaction

碱性过硫酸钾氧化-气相分子吸收光谱法测定水中总氮

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环境监测管理与技术 2010年第4期22卷 47-49页

作者：莫怡玉茅丽秋吴卓智湛江市海洋与渔业环境监测站广东湛江524039 湛江市港务管理局环境监测站广东湛江524027

采用碱性过硫酸钾氧化-气相分子吸收光谱法测定水中总氮,用螺纹盖聚四氟乙烯消化管代替比色管,称重法校正体积,加大NaOH用量,讨论了干扰及消除办法。方法在0μg^20.0μg范围内线性良好,检出限为0.016 mg/L,标准溶液平行测定的RSD≤1.5%... 详细信息

采用碱性过硫酸钾氧化-气相分子吸收光谱法测定水中总氮,用螺纹盖聚四氟乙烯消化管代替比色管,称重法校正体积,加大NaOH用量,讨论了干扰及消除办法。方法在0μg^20.0μg范围内线性良好,检出限为0.016 mg/L,标准溶液平行测定的RSD≤1.5%,实际水样加标回收率为99.2%~102%,测量结果的扩展不确定度为3.3%。

关键词：总氮碱性过硫酸钾气相分子吸收光谱法水质

Low-Temperature Fabrication of Stable Black-Phase CsPbI₃ Perovskite Flexible Photodetectors Toward Wearable Health monitoring

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NANO-MICRO LETTERS 2025年第1期17卷 1-14页

作者： Zhao, yingjie Sun, yicheng Pei, Chaoxin yin, Xing Li, Xinyi Hao, yi Zhang, Mengru yuan, Meng Zhou, Jinglin Chen, yu Song, Yanlin Zhengzhou Univ Coll Chem Zhengzhou 450001 Peoples R China Zhengzhou Univ Pingyuan Lab Zhengzhou 450001 Peoples R China Chinese Acad Sci Inst Chem Key Lab Green Printing Beijing 100190 Peoples R China Chinese Acad Sci Tech Inst Phys & Chem Key Lab Bioinspired Mat & Interfacial Sci Beijing 100190 Peoples R China Chinese Acad Sci Inst High Energy Phys Beijing 100049 Peoples R China

Low-temperature fabrication of black-phase CsPbI3 perovskite films is first demonstrated by using diphenylphosphinic chloride additive under 30-50 degrees C, arising from the steric effect and chloride insertion ***-area high-quality all-inorganic perovskite films with fewer defects enhanced crystallographic orientation, and excellent environmental stability is *** record performances are demonstrated for flexible wearable photodetectors with a responsivity of 42.1 A W-1, a detectivity of 1.3 x 1014 Jones, high-fidelity image, photoplethysmography sensor functions, and high mechanical stability. Flexible wearable optoelectronic devices fabricated from organic-inorganic hybrid perovskites significantly accelerate the development of portable energy, biomedicine, and sensing fields, but their poor thermal stability hinders further applications. Conversely, all-inorganic perovskites possess excellent thermal stability, but black-phase all-inorganic perovskite film usually requires high-temperature annealing steps, which increases energy consumption and is not conducive to the fabrication of flexible wearable devices. In this work, an unprecedented low-temperature fabrication of stable black-phase CsPbI3 perovskite films is demonstrated by the in situ hydrolysis reaction of diphenylphosphinic chloride additive. The released diphenyl phosphate and chloride ions during the hydrolysis reaction significantly lower the phase transition temperature and effectively passivate the defects in the perovskite films, yielding high-performance photodetectors with a responsivity of 42.1 A W-1 and a detectivity of 1.3 x 1014 Jones. Furthermore, high-fidelity image and photoplethysmography sensors are demonstrated based on the fabricated flexible wearable photodetectors. This work provides a new perspective for the low-temperature fabrication of large-area all-inorganic perovskite flexible optoelectronic devices.

关键词： In situ hydrolyzation Low-temperature processing All-inorganic perovskite Flexible photodetectors Health monitoring