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Board of Directors Characteristics and Internal Control Quality Evidence from Chinese-listed companies

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Board of Directors Characteristics and Internal Control Qual...

第26届中国控制与决策会议

作者： Hui lei Channi liu School of Business Administration Hunan University

Using panel data and DK fixed regression, this paper empirically researches the relationship between the board of directors characteristics and internal control quality based on a dataset consisting of listed companies of both Shanghai stock exchange from 2008 to 2012. We find that the internal control quality is significantly inversely associated with general CEO duality, board size, board meetings numbers, significantly positively associate with general the board independence. The independent directors who are not from the area where listed private companies registered is insignificantly related with the internal control quality. These results indicate that board characteristics have great significant impacts on the internal control quality.

关键词： Board of Directors Characteristics Internal Control Quality DK Fixed Regression

Cooperative Detection Algorithm with Game Theory under Noise Uncertainty

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Cooperative Detection Algorithm with Game Theory under Noise...

第5届教育教学改革与管理工程学术年会

作者： lei LI liu LI Navy Communication Master Station

In cognitive radio, time-varying noise which is briefly called noise uncertainty can degrade the detection performance to primary user. In this paper, through game theory, a cooperative detection algorithm which can resist noise uncertainty is proposed. Three thresholds decided by noise uncertainty which divide the decision results into four areas are adopted, and confidence level which is obtained by game strategy can improve the detection performance of secondary user in confusion area. The coordinator adopt "OR" and "K-OUT-N" rule to make the final decision. Simulation shows performance of the scheme proposed is superior, and it also has less infection of distance from secondary user to primary user.

关键词： cognitive radio energy detection cooperative detection noise uncertainty

Pathogenic Fungi Associated with Camellia sinensis and Allied Species

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Pathogenic Fungi Associated with Camellia sinensis and Allie...

中国植物病理学会2017年学术年会

作者： liu Fang Cai lei Chinese Academy of Sciences Institute of MicrobiologyState Key Laboratory of Mycology

Camellia Linnaeus（Theaceae） species are of important commercial and ornamental value,especially ***（tea plant）.Camellia production is heavily affected by a number diseases caused by fungal pathogens,such as anthracnose,gray blight and ring *** the past five years,we carried out an investigation of fungi associated with diseases of *** and allied Camellia ***42 locations in the main cultivation provinces in China,and 1 042 fungal strains were isolated using single spore isolation and tissue isolation *** analyses of these strains suggested that they belonged to at least 162 taxa in 68 genera,38 families,20 orders,and the top five dominant genera were Colletotrichum（25.7%）,Diaporthe（10.5%）,Pestalotiopsis（10.7%）,Setophoma（8.3%） and Cladosporium（6.6%）.Further morphological examinations and multi-locus phylogenetic analyses were employed to identify fungi in the above five genera to species level,which revealed 11 Colletotrichum spp.,9 Diaporthe spp.,15 Pestalotiopsis spp.,7 Setophoma *** 9 Cladosporium *** with plant diseases of Camellia spp.,including 20 novel *** study revealed a high proportion of unrecorded and undescribed species on ***,which increased the known species associated with tea plant from 280 to 384 species,a significant improvement of our understanding on the diversity of fungal pathogens on Camellia species.

关键词： Phylogeny Plant pathogen Species delimitation Taxonomy

Advancements in nutritional diagnosis and support strategies during the perioperative period for patients with liver cancer

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World Journal of Gastrointestinal Surgery 2024年第8期16卷 2409-2425页

作者： Xiao-Qin Li Yun Liang Chen-Feng Huang Sui-Ning Li lei Cheng Chuan You Yao-Xia liu Tao Wang Department of Hepatobiliary Surgery The Affiliated Hospital of North Sichuan Medical CollegeNanchong 637000Sichuan ProvinceChina Department of Paediatric Surgery The Affiliated Hospital of North Sichuan Medical CollegeNanchong 637000Sichuan ProvinceChina Department of Cardiovascular Surgery The First Affiliated HospitalJinan UniversityGuangzhou 510632Guangdong ProvinceChina Department of Geriatric Endocrinology Sichuan Provincial People's HospitalUniversity of Electronic Science and Technology of ChinaChengdu 610072Sichuan ProvinceChina Department of Pediatric Cardiology West China Second University HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Pediatrics Key Laboratory of Birth Defects and Related Diseases of Women and Children(Sichuan University)Ministry of EducationChengdu 610041Sichuan ProvinceChina

Liver cancer represents a grave hepatic condition and constitutes a significant global health *** resection remains the principal therapeutic modality for liver ***,perioperative malnutrition exerts a notable impact on patients with liver cancer,emerging as an independent risk factor for disease mortality and adverse ***,precise nutritional diagnosis and timely nutritional support hold the potential to enhance therapeutic efficacy and quality of life for liver cancer *** study represents a meticulous foray into the literature,extracting data from PubMed,Web of Science,and EMBASE databases,with a focus on the past 5 *** scrutinizes the impact of malnutrition on patients undergoing liver cancer surgery,the etiological underpinnings of malnutrition within this patient cohort,the critical assessment of perioperative nutritional status,and the strategic approaches to nutritional *** rigorous inclusion and exclusion criteria,the amassed scholarly works are meticulously synthesized,methodically organized,and categorically elaborated ***,the authors propose the incorporation of a multidisciplinary nutrition management team during the perioperative period,comprising nutritionists,pharmacists,physicians,nurses,psychologists,and rehabilitation therapists,among other specialized ***,they collaborate to devise and implement personalized nutritional support plans,monitor patients’nutritional status,and make necessary adjustments as *** comprehensive management and intervention,improvements in the nutritional status of liver cancer patients can be achieved,thereby enhancing surgical success rates and facilitating postoperative *** is believed that this manuscript will offer valuable insights to advance the nutritional management during the perioperative phase of liver cancer,aiding in ameliorating patients'nutritional status and treatment outcomes.

关键词： Liver cancer Nutritional diagnosis Nutritional support Perioperative period Genetic testing Immunonutrition Probiotics and gut microbiota

Phase engineering of two-dimensional transition metal dichalcogenides

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Science China Materials 2019年第6期62卷 759-775页

作者： Yao Xiao Mengyue Zhou Jinglu liu Jing Xu lei Fu The Institute for Advanced Studies (IAS) Wuhan University College of Chemistry and Molecular Sciences Wuhan University

Two-dimensional(2D) transition metal dichalcogenides(TMDs) have gained much attention in virtue of their various atomic configurations and band *** from those thermodynamically stable phases, plenty of metastable phases exhibit interesting properties. To obtain 2D TMDs with specific phases, it is important to develop phase engineering strategies including phase transition and phaseselective synthesis. Phase transition is a conventional method to transform one phase to another, while phase-selective synthesis means the direct fabrication of the target phases for2D TMDs. In this review, we introduce the structures and stability of 2D TMDs with different phases. Then, we summarize the detailed processes and mechanism of the traditional phase transition strategies. Moreover, in view of the increasing demand of high-phase purity TMDs, we present the advanced phase-selective synthesis strategies. Finally, we underline the challenges and outlooks of phase engineering of 2D TMDs in two aspects-high phase purity and excellent controllability. This review may promote the development of controllable phase engineering for 2D TMDs and even other2D materials toward both fundamental studies and practical applications.

关键词： phase engineering transition metal dichalcogenides phase transition phase-selective synthesis

Modic改变的发生机制及对腰椎间盘突出症临床疗效的影响

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中国矫形外科杂志 2018年第17期26卷 1592-1596页

作者：杨城刘磊王运涛张坡东南大学附属中大医院骨科南京市210009

虽然Modic改变的概念提出时间不长,但人们对其发生发展以及临床特点已经进行了大量研究并有了初步认识。已有大量研究表明,在腰椎间盘突出症患者中Modic改变的发生率较高,提示Modic改变与腰椎间盘突出症有密切联系。Modic改变可能影响... 详细信息

虽然Modic改变的概念提出时间不长,但人们对其发生发展以及临床特点已经进行了大量研究并有了初步认识。已有大量研究表明,在腰椎间盘突出症患者中Modic改变的发生率较高,提示Modic改变与腰椎间盘突出症有密切联系。Modic改变可能影响腰椎间盘突出症的预后及转归。本文旨在通过回顾以往文章,总结Modic改变的发生机制,探讨Modic改变的临床意义,分析Modic改变对腰椎间盘突出症临床疗效的影响,以期为治疗腰椎间盘突出症提供理论指导。

关键词： Modic改变腰椎间盘突出症发生机制单纯髓核摘除术椎间融合术椎间盘置换术

A feasibility study of jaw thrust as an indicator assessing adequate depth of anesthesia for insertion of supraglottic airway device in morbidly obese patients

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Chinese Medical Journal 2019年第18期132卷 2185-2191页

作者： lei Wan liu-Jia-Zi Shao Yang liu Hai-Xia Wang Fu-Shan Xue Ming Tian Department of Anesthesiology Beijing Friendship Hospital Capital Medical University Beijing 100050 China Department of General Surgery Beijing Friendship Hospital Capital Medical University Beijing 100050 China

Background:Jaw thrust has been proven as a useful test determining adequate depth of anesthesia for successful insertion of supraglottic airway device (SAD) in normal adults and children receiving intra-venous or inhalational anesthesia *** prospective observational study aimed to determine the feasibility and validity of this test when using as an indicator assessing adequate depth of anesthesia for successful insertion of SAD in spontaneously breathing morbidly obese patients receiving sevoflurane inhalational ***:Thirty morbidly obese patients with a body mass index 40 to 73 kg/m2 undergoing bariatric surgery in Beijing Friendship Hospital from October 2018 to January 2019 were included in this *** adequate pre-oxygenation,5% sevoflurane was inhaled and inhalational concentration of sevoflurane was increased by 1% every 2 *** motor responses to jaw thrust disappeared,a SAD was inserted and insertion conditions were *** anatomic position of SAD was assessed using a fiberoptic ***:The SAD was successfully inserted at the first attempt in all *** conditions of SAD were excellent in nine patients (30%) and good in 21 patients (70%),*** fiberoptic views of SAD position were adequate in 28 patients (93%).Conclusions:Jaw thrust test is a reliable indicator determining adequate anesthesia depth of sevoflurane inhalational induction for successful insertion of SAD in spontaneously breathing morbidly obese patients.

关键词： Obesity Inhalational induction Sevoflurane Supraglottic airway device Jaw thrust test

Genome-wide Hi-C analysis reveals extensive hierarchical chromatin interactions in rice

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Genome-wide Hi-C analysis reveals extensive hierarchical chr...

中国植物学会第十六次全国会员代表大会暨85周年学术年会

作者： lei Gong Bao liu Key Laboratory of Molecular Epigenetics of the Ministry of Education （MOE） Northeast Normal University

＜正＞The non-random spatial packing of chromosomes in the nucleus plays critical roles in orchestrating gene expression and genome ***,we present a Hi-C analysis of the chromatin interaction patterns in rice （Oryza sativa L.） at hierarchical architectural *** confirm that rice chromosomes occupy their own territories with certain preferential inter-chromosomal *** compartment

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Study of the mechanism of the Huoxuetongjiang method for esophageal mucosal repair and dynamic immunoregulation in RE rats

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Study of the mechanism of the Huoxuetongjiang method for eso...

第三十一届全国中西医结合消化系统疾病学术会议

作者： lei liu YANPING TANG

Objective:To observe the effect of the Huoxuetongjiang method on the esophageal mucosal barrier,esophageal motility and immune inflammatory mediators in a rat model of reflux esophagitis (RE) and to explore the possible mechanism of the Huoxuetongjiang method in treatment of RE with blood stasis blocking collaterals ***:One hundred and eighty healthy male Wistar rats were randomly divided into 6 groups (normal control,simple modeling,Western medicine,low Chinese medicine concentration,medium Chinese medicine concentration,and high Chinese medicine concentration groups).Each group contained 30 *** normal control group was fed normally without any treatment,and the remaining 5 groups were treated with a modified partial cardiac sphincter incision with external pylorus partial ligation to prepare the RE rat *** successful modeling,each group was treated with Western medicine or different concentrations of traditional Chinese medicine by intragastric *** in the mucosal barrier (gross lower esophageal mucosal specimen and intercellular space),esophageal motility (pH of the lower esophagus and5-hydroxytryptamine (5-HT) signal transduction pathway),and immune inflammatory indicators (IL-6+TNF-a+mast cells (MCs) and their degranulation) were observed and compared between the groups after 7 and 14 days of ***:(1) Mucosal barrier:Compared with those of the modeling group,the esophageal mucosal gross specimen scores and intracellular space decreased significantly after treatment in all groups (P <0.05).The effect of treatment for 14 days was better than that for 7 days(P <0.05).Among them,the group treated with the high Chinese medicine concentration had the best efficacy.(2) Esophageal motility:The pH of the lower esophagus in the modeling group was significantly lower than that in the normal group,and the 5-HT immunohistochemical expression level was significantly increased (P <0.01).After treatment,the pH value of the lower

关键词： RE,Huoxuetongjiang method blood stasis blocking collaterals syndrome mucosal barrier esophageal motility immune inflammatory