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AHermitian C^(2) Differential Reproducing Kernel Interpolation Meshless Method for the 3D Microstructure-Dependent Static Flexural Analysis of Simply Supported and Functionally Graded Microplates

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Computer Modeling in Engineering & Sciences 2024年第10期141卷 917-949页

作者： Chih-Ping wu Ruei-Syuan Chang Department of Civil Engineering National Cheng Kung UniversityTainan70101TaiwanChina

This work develops a Hermitian C^(2) differential reproducing kernel interpolation meshless(DRKIM)method within the consistent couple stress theory(CCST)framework to study the three-dimensional(3D)microstructuredependent static flexural behavior of a functionally graded(FG)microplate subjected to mechanical loads and placed under full simple *** the formulation,we select the transverse stress and displacement components and their first-and second-order derivatives as primary ***,we set up the differential reproducing conditions(DRCs)to obtain the shape functions of the Hermitian C^(2) differential reproducing kernel(DRK)interpolant’s derivatives without using direct *** interpolant’s shape function is combined with a primitive function that possesses Kronecker delta properties and an enrichment function that constituents *** a result,the primary variables and their first-and second-order derivatives satisfy the nodal interpolation ***,incorporating ourHermitianC^(2)DRKinterpolant intothe strong formof the3DCCST,we develop a DRKIM method to analyze the FG microplate’s 3D microstructure-dependent static flexural *** Hermitian C^(2) DRKIM method is confirmed to be accurate and fast in its convergence rate by comparing the solutions it produces with the relevant 3D solutions available in the ***,the impact of essential factors on the transverse stresses,in-plane stresses,displacements,and couple stresses that are induced in the loaded microplate is *** factors include the length-to-thickness ratio,the material length-scale parameter,and the inhomogeneity index,which appear to be significant.

关键词： Consistent/modified couple stress theory differential reproducing kernel methods microplates point collocation methods static flexural 3D microstructure-dependent analysis

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成人肺先天性囊性腺瘤样畸形及其伴发肺癌间的临床病理学和基因特征分析

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中华病理学杂志 2024年第2期53卷 130-135页

作者：梁琳武春燕张莉萍侯立坤董正伟吴伟黄焰谢惠康同济大学附属上海市肺科医院病理科上海200433

目的探讨成人肺先天性囊性腺瘤样畸形(congenital cystic adenomatoid malformation,CCAM)及其伴发肺癌间临床病理学特征的异同并探索其基因特征性改变。方法收集同济大学附属上海市肺科医院病理科2015年6月至2023年5月诊断的13例成人肺... 详细信息

目的探讨成人肺先天性囊性腺瘤样畸形(congenital cystic adenomatoid malformation,CCAM)及其伴发肺癌间临床病理学特征的异同并探索其基因特征性改变。方法收集同济大学附属上海市肺科医院病理科2015年6月至2023年5月诊断的13例成人肺CCAM病例,分析其临床病理特点,对其病理分型、组织学特点以及与肺癌发生的相关性进行讨论,并对这13例病例的良性及癌变区域分别进行二代测序。结果13例成人肺CCAM的病理分型均为1型,男性4例,女性9例,年龄18~65岁,平均年龄41岁,其中6例伴发肺癌且均为黏液腺癌。发生癌变的病例囊壁内可见黏液腺上皮增生,周围可见黏液腺癌。二代测序结果显示,13例病例中仅2例未检测到基因突变,在7例具有KRAS基因第2号外显子突变的病例中6例伴发黏液腺癌,且同一病例中无论是癌变区域还是良性区域均具有相同位点的KRAS基因突变。结论成人肺CCAM是一种先天性疾病,其中成人患者最常见的病理分型为1型,且常可伴发黏液腺癌,基因突变较为常见,其中KRAS基因突变最为常见且与癌变高度相关,其发生在黏液腺上皮增生/黏液腺癌之前,可能是驱动癌变的重要因素。

关键词：肺疾病腺癌,黏液 DNA突变分析基因,ras 先天性囊性腺瘤样畸形

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Retinol is involved in the intestinal regeneration and strengthens the intestinal barrier during refeeding in broiler chickens

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Journal of Integrative Agriculture 2024年第11期23卷 3843-3859页

作者： Youli Wang Huajin Zhou Jing Chen Yuqin wu Yuming Guo Bo Wang Jianmin Yuan Key Laboratory of Qinghai Tibetan Plateau Animal Genetic Resource Reservation and Utilization Ministry of Education/Key Laboratory of Sichuan Province for Qinghai Tibetan Plateau Animal Genetic Resource Reservation and Exploitation College of Animal Science and Veterinary Medicine Southwest Minzu University State Key Laboratory of Animal Nutrition College of Animal Science and Technology China Agricultural University Sichuan New Hope Liuhe Technology Innovation Co.Ltd.

Fasting is typically used before feeding metabolizable energy assessment in broilers. Previous studies have shown that fasting cause atrophy of the intestinal villus. Whether fasting affects intestinal permeability during refeeding by altering barrier function and nutrient absorption is of concern. Here, 23-d-old broilers were randomly assigned to 5 treatments, fasted for 0, 12, 24, 36, and 48 h, respectively, and then refed for 2 d, to study the impact of different duration of fasting on the intestinal regeneration and barrier function during refeeding. Results showed that the intestinal morphology in fasted birds was recovered in 2 d of refeeding at most. As fasting durations increased,enterocytes per intestinal villus were linearly and quadratically increased(both P<0.05), whereas goblet cells per intestinal villus was linearly decreased(both P<0.05). Besides, the mRNA level of lysozyme was linearly decreased as fasting durations increased during refeeding(both P<0.05), while quadratically increased mucin 2 was observed only after 1 d of refeeding(P<0.05). Linear increase effects were observed for claudin 2 and zonula occludens-1with increased fasting durations after 1 d of refeeding(all P<0.05), and linear and quadratical effects were observed for claudin 2 at 2 d of refeeding(both P<0.05). Besides, we found that intestinal permeability to creatinine, 4 and 70 kD dextran were linearly and quadratically decreased with increased fasting durations at 6 h and 1 d of refeeding(all P<0.05). Furthermore, jejunum proteomic from birds refed for 6 h showed that birds fasted for 36 h showed increased antimicrobial peptides and upregulated retinol metabolism when compared to the nonfasted birds(P<0.05).Further study showed that retinyl ester catabolism was inhibited during fasting and enhanced during *** of intestinal organoid culture showed that retinol benefits the cell proliferation and enterocyte *** conclusion, the intestinal permeability t

关键词： broiler chicken fasting intestinal barrier intestinal permeability retinol

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HPLC法检查奥拉帕利原料中有关物质

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药物分析杂志 2024年第8期44卷 1379-1386页

作者：邹艳吴海龙邓丽胡川李宏名国药集团川抗制药有限公司成都611731 成都康弘药业集团股份有限公司成都610000

目的:建立高效液相色谱法检测奥拉帕利原料中的有关物质。方法:采用YMC-Pack pro C_(18)AS(150 mm×4.6 mm,3μm)色谱柱,以0.05 mol·L^(-1)的磷酸二氢钾(用稀磷酸调pH至3.0)-甲醇-乙腈(90∶5∶5)为流动相A,甲醇-乙腈-水(45∶45∶10)为... 详细信息

目的:建立高效液相色谱法检测奥拉帕利原料中的有关物质。方法:采用YMC-Pack pro C_(18)AS(150 mm×4.6 mm,3μm)色谱柱,以0.05 mol·L^(-1)的磷酸二氢钾(用稀磷酸调pH至3.0)-甲醇-乙腈(90∶5∶5)为流动相A,甲醇-乙腈-水(45∶45∶10)为流动相B,进行梯度洗脱,流速0.8 mL·min^(-1),柱温30℃,检测波长210 nm,进样量10μL。结果:空白溶剂不干扰供试品溶液有关物质测定,系统适用性溶液中已知杂质Ⅰ~Ⅶ及未知杂质在该色谱系统中分离完好;奥拉帕利质量浓度在0.033~411.623μg·mL^(-1),杂质Ⅰ~Ⅶ质量浓度均在0.05~3.0μg·mL^(-1)与其峰面积呈较好的线性关系,其r均在0.999以上;杂质Ⅰ~Ⅶ平均回收率均大于92.0%(RSD均小于4.0%)。结论:HPLC法检查奥拉帕利原料有关物质方法专属性强,灵敏度高,准确度高,精密度好,可满足奥拉帕利原料有关物质检测需求。

关键词：奥拉帕利聚腺苷二磷酸核糖聚合酶(PARP)抑制剂有关物质方法研究质量控制高效液相色谱

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Image Steganography by Pixel-Value Differencing Using General Quantization Ranges

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Computer Modeling in Engineering & Sciences 2024年第10期141卷 353-383页

作者： Da-Chun wu Zong-Nan Shih Department of Computer and Communication Engineering National Kaohsiung University of Science and TechnologyKaohsiung824005TaiwanChina

A new steganographic method by pixel-value differencing(PVD)using general quantization ranges of pixel pairs’difference values is *** objective of this method is to provide a data embedding technique with a range table with range widths not limited to powers of 2,extending PVD-based methods to enhance their flexibility and data-embedding rates without changing their capabilities to resist security ***,the conventional PVD technique partitions a grayscale image into 1×2 non-overlapping *** entire range[0,255]of all possible absolute values of the pixel pairs’grayscale differences in the blocks is divided into multiple quantization *** width of each quantization range is a power of two to facilitate the direct embedding of the bit information with high embedding *** using power-of-two range widths,the embedding rates can drop using conventional embedding *** contrast,the proposed method uses general quantization range widths,and a multiple-based number conversion mechanism is employed skillfully to implement the use of nonpower-of-two range widths,with each pixel pair being employed to embed a digit in the multiple-based *** the message bits are converted into a big multiple-based number whose digits can be embedded into the pixel pairs with a higher embedding *** experimental results showed the feasibility of the proposed method and its resistance to security *** addition,implementation examples are provided,where the proposed method adopts non-power-of-two range widths and employsmultiple-based number conversion to expand the data-hiding and steganalysis-resisting capabilities of other PVD methods.

关键词： Steganography pixel-value differencing multiple-based number conversion general quantization range

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Fast rate （≥ 250 beats/min） right ventricular burst stimulation is useful for ventricular tachycardia induction in arrhythmogenic right ventricular cardiomyopathy

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Journal of Geriatric Cardiology 2016年第1期13卷 70-74页

作者： ling-Min wu Jing-Ru BAO yan YAO Bing-Bo HOU Li-Hui ZHENG Shu ZHANG State Key Laboratory of Cardiovascular Disease Fuwai Hospital National Center for Cardiovascular Diseases Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China Cardiovascular Center PLA Navy General Hospital Beijing China

Background One of the major challenges in arrhythmogenic right ventricular cardiomyopathy （ARVC） ablation is ventricular tachy-cardia （VT） non-inducibility. The study aimed to assess whether fast rate （≥ 250 beats/min） right ventricular burst stimulation was useful for VT induction in patients with *** Ninety-one consecutive ARVC patients with clinical sustained VT that underwent electro-physiological study were enrolled. The stimulation protocol was implemented at both right ventricular apex and outflow tract as follows： Step A, up to double extra-stimuli; Step B, incremental stimulation with low rate （＆lt; 250 beats/min）; Step C, burst stimulation with fast rate （≥ 250 beats/min）; Step D, repeated all steps above with intravenous infusion of *** A total of 76 patients had inducible VT （83.5%）, among which 49 were induced by Step C, 15 were induced by Step B, 8 and 4 by Step A and D, respectively. Clinical VTs were induced in 60 patients （65.9%）. Only two spontaneously ceased ventricular fibrillations were induced by Step C. Multivariate analysis showed that a narrower baseline QRS duration under sinus rhythm was independently associated with VT non-inducibility （OR： 1.1; 95% CI： 1.0-1.1;P = 0.019）.ConclusionFast rate （≥ 250 beats/min） right ventricular burst stimulation provides a useful supplemental method for VT induction in ARVC patients.

关键词： Burst stimulation Cardiomyopathy Right ventricular Ventricular tachycardia

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Glycodiversification of gentamicins through in vivo glycosyltransferase swapping enabled the creation of novel hybrid aminoglycoside antibiotics with potent activity and low ototoxicity

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Acta Pharmaceutica Sinica B 2024年第9期14卷 4149-4163页

作者： Xinyun Jian Cheng Wang Shijuan wu Guo Sun Chuan Huang Chengbing Qiu Yuanzheng Liu Peter FLeadlay Dong Liu Zixin Deng Fuling Zhou Yuhui Sun Department of Hematology Zhongnan Hospital of Wuhan UniversitySchool of Pharmaceutical SciencesWuhan UniversityWuhan 430071China Key Laboratory of Combinatorial Biosynthesis and Drug Discovery(Ministry of Education) Wuhan UniversityWuhan 430071China School of Pharmacy Huazhong University of Science and TechnologyWuhan 430030China School of Life Sciences Co-Innovation Center of NeuroregenerationNantong Laboratory of Development and DiseasesNantong UniversityNantong 226019China Department of Biochemistry University of CambridgeCambridge CB21GAUK Department of Biochemistry and Molecular Biology Biomedicine Discovery InstituteMonash UniversityClayton VIC 3800Australia ARC Centre of Excellence for Innovations in Protein and Peptide Science Monash UniversityClayton VIC 3800Australia

Aminoglycosides(AGs)are a class of antibiotics with a broad spectrum of ***,their use is limited by safety concerns associated with nephrotoxicity and ototoxicity,as well as drug *** address these issues,semi-synthetic approaches for modifying natural AGs have generated new generations of AGs,however,with limited types of modification due to significant challenges in *** study explores a novel approach that harness the bacterial biosynthetic machinery of gentamicins and kanamycins to create hybrid *** was achieved by glycodiversification of gentamicins via swapping the glycosyltransferase(GT)in their producer with the GT from kanamycins biosynthetic pathway and resulted in the creation of a series of novel AGs,therefore referred to as genkamicins(GKs).The manipulation of the hybrid biosynthetic pathway enabled the targeted accumulation of different GK species and the isolation and characterization of six GK *** compounds display retained antimicrobial activity against a panel of World Health Organization(WHO)critical priority pathogens,and GK-C2a,in particular,demonstrates low ototoxicity compared to clinical drugs in zebrafish *** study provides a new strategy for diversifying the structure of AGs and a potential avenue for developing less toxic AG drugs to combat infectious diseases.

关键词： Antibiotic Aminoglycoside biosynthesis Biosynthetic engineering Ototoxicity

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Sevoflurane effects on cyclic adenosine monophosphate response element binding protein,phosphorylated cyclic adenosine monophosphate response element binding protein,and Livin expression in the cortex and hippocampus of a vascular cognitive impairment rat

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Neural Regeneration Research 2009年第7期4卷 523-529页

作者： Bin wu ling Dan Xianlin Zhu Department of Anesthesiology First Affiliated Hospital Chongqing Medical University Chongqing 400016 China Department of Anesthesiology Second Affiliated Hospital Chongqing Medical University Chongqing 400010 China

BACKGROUND： Neuronal necrosis and apoptosis play important roles in the pathophysiology of cerebral ischemia and resulting cognitive impairment. However, inhibition of neuronal necrosis and apoptosis has been shown to attenuate cognitive impairment following cerebral ischemia. OBJECTIVE： To investigate the effects of sevoflurane on cyclic adenosine monophosphate response element binding protein （CREB）, phosphorylated CREB （pCREB）, and Livin expression in the cortex and hippocampus of a rat model of vascular cognitive impairment.DESIGN, TIME AND SETTING： A randomized, controlled experiment was performed in the Chongqing Key Laboratory of Neurology between June 2007 and July 2008.MATERIALS： Sevoflurane was provided by Abbott Laboratory, UK; Morris water maze was provided by Chinese Academy of Medical Sciences, China; goat anti-rat CREB, goat anti-rat pCREB and goat anti-rat Livin antibodies were provided by Biosource International, USA. METHODS： A total of 42 female, Wistar rats were randomly assigned to the following groups： sham operation, vascular cognitive impairment, and sevoflurane treatment. The vascular cognitive impairment rat model was established by permanent bilateral occlusion of both common carotid arteries, and 1.0 MAC sevoflurane was immediately administered by inhalation for 2 hours. MAIN OUTCOME MEASURES： CREB, pCREB, and Livin expression was measured in the cortex and hippocampus by Western blot and reverse transcription-polymerase chain reaction. Behavior was evaluated with Morris water maze. RESULTS： CREB, pCREB, and Livin expression in the sevoflurane treatment group was significantly greater than the vascular cognitive impairment group （P 〈 0.01）. However, expression of CREB and pCREB was significantly less in the sevoflurane treatment and vascular cognitive impairment groups, compared with the sham operation group （P 〈 0.01）. Livin expression in the sevoflurane treatment and vascular cognitive impairment groups was significantly gre

关键词： vascular cognitive impairment sevoflurane cyclic adenosine monophosphate response element binding protein Livin

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Multitap RF Canceller with Single LMS Loop for Adaptive Co-Site Broadband Interference Cancellation

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China Communications 2024年第9期21卷 179-197页

作者： Jiang Yunhao Liu Zhipeng Yuan Lei Xu Anfei Wang Hang Zhao Nan wu Minghu Hubei Key Laboratory for High-Efficiency Utilization of Solar Energy and Operation Control of Energy Storage System Hubei University of TechnologyWuhan 430068China Hubei Collaborative Innovation Center for High-Efficiency Utilization of Solar Energy Hubei University of TechnologyWuhan 430068China

With the development of wireless communication technology,an urgent problem to be solved is co-site broadband interference on independent communication platforms such as satellites,space stations,aircrafts and ***,the problem of strong selfinterference rejection should be solved in the co-time co-frequency full duplex mode which realizes spectrum multiplication in 5G communication *** the research of such interference rejection,interference cancellation technology has been *** order to reject multipath interference,multitap double LMS(Least Mean Square)loop interference cancellation system is often used for cancelling RF(Radio Frequency)domain interference ***,more taps will lead to a more complex structure of the cancellation system.A novel tap single LMS loop adaptive interference cancellation system was proposed to improve the system compactness and reduce the *** addition,a mathematical model was built for the proposed cancellation system,the correlation function of CP2FSK(Continuous Phase Binary Frequency Shift Keying)signal was derived,and the quantitative relationship was established between the correlation function and the interference signal bandwidth and tap delay *** steadystate weights and the expression of the average interference cancellation ratio(ICR)were deduced in the scenes of LOS(Line of Sight)interference with antenna swaying on an independent communication platform and indoor multipath *** quantitative relationship was deeply analyzed between the interference cancellation performance and the parameters such as antenna swing,LMS loop gain,and interference signal bandwidth,which was verified by simulation *** the performance of the proposed interference cancellation system was compared with that of the traditional double LMS loop cancellation *** results showed that the compact single LMS loop cancellation system can achieve an average interference rejection ca

关键词： co-site broadband interference delay matching RF interference cancellation single LMS loop

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Kindergarten Teachers’Language Modeling Behaviors in Daily Activities and Free Play

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Frontiers of Education in China 2024年第1期19卷 1-17页

作者： wu Qiong HU Biying GUAN Lin Faculty of Education Northeast Normal UniversityChangchun 130024China Faculty of Education University of MacaoMacao 999078China Department of Preschool Education Fujian Preschool Education CollegeFuzhou 350007China

Teachers’language modeling behaviors,including frequent conversation,open-ended questions,repetition and extension,self-and parallel talks,and advanced language,have significantly impacted young children’s language learning and *** study examined 60 classrooms from 20 kindergartens in Guangzhou,China,and analyzed 62 films of daily activities and 57 videos of free *** aims to address the research gap in existing research that pays little attention to teachers’language modeling behaviors in daily activities and free *** results indicate that the more frequent teachers’language modeling behaviors,the larger the vocabulary young children use and the better their performance in lexical ***,such behaviors in daily activities and free play are infrequent and superficial,failing to guide young children’s language development *** optimize teachers’language modeling behaviors in daily activities and free play,they are expected to establish positive emotional bonds with young children in a kind and respectful manner and receive *** are also encouraged to frequently communicate and engage in dialogues with young children,create contexts that facilitate the use of language,increase the frequency of stimuli for vocabulary learning,and guide and encourage young children’s advanced language.

关键词： teachers’language modeling behaviors young children daily activities free play

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