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A Convex Subdivision Scheme for Smooth Curves' Generation

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Journal of Shanghai University(English Edition) 2001年第Z1期5卷 290-293页

作者： ding You-dong

Induction of Protection against Paraquat-induced Oxidative Damage by Abscisic Acid in Maize Leaves is Mediated through Mitogen-activated Protein Kinase

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Journal of Integrative Plant Biology 2009年第10期51卷 961-972页

作者： Hai-dong ding Xiao-Hua Zhang Shu-Cheng XU Li-Li Sun Ming-Yi Jiang A-Ying Zhang Yin-Gen Jin College of Life Sciences Nanjing Agricultural University Nanjing 210095 China College of Biosciences and Biotechnology Yangzhou University Yangzhou 225009 China College of Life Sciences Fuyang Teachers College Fuyang 236032 China National Key Laboratory of Crop Genetics and Germplasm Enhancement Nanjing Agricultural University Nanjing 210095 China

Mitogen-activated protein kinase （MAPK） cascade has been shown to be important components in stress signal transduction pathway. In the present study, protection of maize seedlings （Zea mays L.） against paraquat-generated oxidative toxicity by abscisic acid （ABA）, its association with MAPK and ZmMPK5, a candidate for MAPK were investigated. Treatment of maize leaves with exogenous ABA led to significant decreases in the content of malondialdehyde, the percentage of ion leakage and the level of protein oxidation （in terms of carbonyl groups） under paraquat （PQ） stress. However, such decreases were blocked by the pretreatment with two MAPK kinase inhibitors PD98059 and U0126. The damage caused by PQ was further aggravated by inhibitors. Two inhibitors also suppressed the total activities of the antioxidant enzymes superoxide dismutase （SOD, EC 1.***.1.1）, catalase （CAT, EC 1.***.1.6）, ascorbate peroxidase （APX, EC ***）, and glutathione reductase （GR, EC 1.***.4.2）. Besides, treatment with PQ stimulated the activation of a 46 kDa MAPK, which was identified as ZmMPK5 by in-gel kinase assay with immunoprecipitation. These results reveal that ABA-induced protection against PQ-generated oxidative damage is mediated through MAPK cascade in maize leaves, in which ZmMPK5, a candidate for MAPK, is demonstrated to be involved.

关键词： abscisic acid mitogen-activated protein kinase oxidative damage paraquat Zea mays

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国外电子烟管制概况及其对我国的启示

中国烟草学报 2017年第4期23卷 128-135页

作者：丁冬国家烟草专卖局烟草经济研究所

基于属性定位、管制措施两个维度,本文梳理了全球约80个国家和地区的电子烟管制政策。从属性定位看,各国电子烟被视为烟草制品、医药产品或普通消费品;从管制措施看,各国政府从生产、销售、使用、包装与广告、税收五个方面对电子烟进行... 详细信息

基于属性定位、管制措施两个维度,本文梳理了全球约80个国家和地区的电子烟管制政策。从属性定位看,各国电子烟被视为烟草制品、医药产品或普通消费品;从管制措施看,各国政府从生产、销售、使用、包装与广告、税收五个方面对电子烟进行管制。最后,本文建议我国政府相关部门将电子烟视为烟草制品纳入管制。

关键词：电子烟烟草管制烟草制品医药产品

Improving performance of Cs_(2)AgBiBr_(6)solar cell through constructing gradient energy level with deep-level hole transport material

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Rare Metals 2023年第9期42卷 3004-3012页

作者： Zi-Yang Xia Wei Zhang Cheng Chen Hao-Xin Wang Lin-Qin Wang Ya-Wei Miao Xing-dong ding Li-Cheng Sun Ming Cheng Institute for Energy Research School of Energy and Power EngineeringJiangsu UniversityZhenjiang212013China Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry School of ScienceWestlake UniversityHangzhou310024China

The valence band offset between Cs_(2)AgBiBr_(6)and hole transport layer(HTL)is approximately 1.00 e V,which results in high energy loss and is identified as one of the bottle necks of Cs_(2)Ag BiBr_(6)perovskite solar cell(PSC)for achieving high power conversion efficiency(PCE).To tackle this problem,we propose the optimization of the energy level alignment by designing and synthesizing novel deep-level hole transport materials(HTMs).The sole introduction of deep-level HTMs successfully reduces the valence band offset between Cs_(2)Ag Bi Br_(6)and HTL,but induces the increased valence band offset at HTL/Au interface,limiting the PCE *** further solve the problem and improve the PCE,the gradient energy level arrangement is constructed by combining the newly developed deep-level HTM 6,6’-(3-((9,9-dimethyl-9H-fluoren-3-yl)(4-methoxyphenyl)amino)thiophene-2,5-diyl)bis(N-(9,9-dimethyl-9H-fluoren-2-yl)-N,9-bis(4-methoxyphenyl)-9H-carbazol-3-amine)(TF)with 2,2’,7,7’-tetrakis(N,N’-dipmethoxyphenylamine)-9,9-spirobifluorene(Spiro-OMeTAD).Through optimization,an impressive PCE of 3.50%with remarkably high open-circuit voltage(V_(oc))and fill factor(FF)is achieved,qualifying it among the best pristine Cs_(2)AgBiBr_(6)PSCs.

关键词： All-inorganic Cs_(2)AgBiBr_(6)perovskite Stepped energy level structure Energy loss Moisture resistance

Carbon Nanotube Supported Amorphous MoS_(2) via Microwave Heating Synthesis for Enhanced Performance of Hydrogen Evolution Reaction

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Energy Material Advances 2021年第1期2021卷 376-383页

作者： Wei Tang Jie Jian Gen Chen Wenjuan Bian Jiuling Yu Haiyan Wang Meng Zhou dong ding Hongmei Luo Department of Chemical and Materials Engineering New Mexico State UniversityLas CrucesNM 88003USA School of Materials Engineering Purdue UniversityWest LafayetteIN 47907USA Energy&Environment Science and Technology Idaho National LaboratoryIdaho FallsID 83415USA

Amorphous molybdenum disulfide(MoS_(2))is a promising electrochemical catalyst for hydrogen evolution reaction(HER)due to more active sites exposed on the surface compared to its crystalline *** this study,a novel fast three-minute one-pot method is proposed to prepare the single-wall carbon nanotube-(SWCNT-)supported amorphous MoS_(2) via a microwave heating *** to traditional hydro-or solvent thermal methods to prepare MoS_(2) which usually consume more than 10 hours,it is more promising for fast *** overpotential at 10 mA/cm2 of amorphous MoS_(2)@SWCNT is 178 mV,which is 99mV and 22mV lower than crystalline MoS_(2)@SWCNT and pure amorphous MoS_(2),*** running 1000 cycles of polarization,~2%increase in overpotential is observed,indicating its good *** enhanced performance results from the beneficial combination of the SWCNT substrate and the amorphous *** introduction of SWCNT increases catalyst conductivity and prevents MoS_(2) *** amorphous microstructures of MoS_(2) prepared by a microwave heating method lead to more Mo edges or active sites exposed.

关键词： stability. amorphous crystalline

Preliminary study on phonetic characteristics of patients with pulmonary nodules

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Journal of Integrative Medicine 2020年第6期18卷 499-504页

作者： Xue-yang Song Si-jing Wang Zhao-xia Xu Yi-ming Hao Lu Feng Xiao-dong ding Hui Gao Yi-qin Wang College of Basic Medicine Shanghai University of Traditional Chinese Medicine.Shanghai 201203China

Objective: Pulmonary nodules(PNs) are one of the imaging manifestations of early lung cancer screening,which should receive more attention. Traditional Chinese medicine believes that voice changes occur in patients with pulmonary diseases. The purpose of this study is to explore the differences in phonetic characteristics between patients with PNs and able-bodied ***: This study explores the phonetic characteristics of patients with PNs in order to provide a simpler and cheaper method for PN screening. It is a case-control study to explore the differences in phonetic characteristics between individuals with and without PNs. This study performed non-parametric statistics on acoustic parameters of vocalizations, collected from January 2017 to March 2018 in Shanghai,China, from these two groups;it explores the differences in third and fourth acoustic parameters between patients with PNs and a normal control group. At the same time, computed tomography(CT) scans,course of disease, combined disease and other risk factors of the patients were collected in the form of questionnaire. According to the grouping of risk factors, the phonetic characteristics of the patients with PNs were ***: This study was comprised of 200 patients with PNs, as confirmed by CT, and 86 healthy people that served as a control group. Among patients with PNs, 43% had ground glass opacity, 32% had nodules with a diameter ≥ 8 mm, 19% had a history of smoking and 31% had hyperlipidemia. Compared with the normal group, there were statistically significant differences in pitch, intensity and shimmer in patients with PNs. Among patients with PNs, patients with diameters ≥ 8 mm had a significantly higher third formant. There was a significant difference in intensity, fourth formant and harmonics-to-noise ratio(HNR)between smoking and non-smoking patients. Compared with non-hyperlipidemia patients, the pitch, jitter and shimmer of patients with PNs and hyperlipidemia were higher a

关键词： Pulmonary nodules Risk factors Phonetic characteristics Traditional Chinese medicin

Evolution of Palaeoenvironment of the South Yellow Sea Since the Last Deglaciation

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Journal of Ocean University of China 2020年第4期19卷 827-836页

作者： WANG Haoyin LI Guangxue ZHANG Yang LIU Yong LIU dongsheng ding dong XU Jishang MA Yanyan QIAO Lulu WANG Liyan LI Qian Key Laboratory of Submarine Sciences&Prospecting Techniques Ministry of EducationOcean University of ChinaQingdao 266100China College of Marine Geosciences Ocean University of ChinaQingdao 266100China

The sediments in core YS01 recovered from the South Yellow Sea mud deposit zone contain abundant benthic foraminifera,particularly shallow continental shelf species,but rare of planktonic *** benthic foraminifera are dominated by stenohaline cold shallow-water species and euryhaline brackish-water *** this paper,the palaeoenvironmental changes were discussed based on the grain-size compositions and benthic foraminiferal *** different benthic foraminiferal assemblages were discriminated by species analysis from the foraminiferal *** to AMS14C dating data in core YS01,we identified four main stages of marine environmental changes since the last deglaciation:a near-shore depositional stage(13.1–9.5 kyr B.P.),a transitional stage from near-shore deposition to shallow-sea deposition(9.5–5.6 kyr B.P.),a high sea level stage with shallow-sea deposition(5.6–2.9 kyr B.P.),and a stable shallow-sea depositional stage(2.9 kyr *** the present).

关键词： benthic foraminifera last deglaciation South Yellow Sea palaeoenvironmental change

Fast magnetic reconstruction of the portal vein with allogeneic blood vessels in canines

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Hepatobiliary & Pancreatic Diseases International 2015年第3期14卷 293-299页

作者： Shan-Pei Wang Xiao-Peng Yan Fei Xue ding-Hui dong Xu-Feng Zhang Feng Ma Hao-Hua Wang Yi Lv Department of Hepatobiliary Surgery First Affiliated Hospital Medical School of Xi'an Jiaotong University Regenerative Medicine and Surgery Engineering Research Center of Shaanxi Province

BACKGROUND： The resection and reconstruction of large vessels, including the portal vein, are frequently needed in tumor resection. Warm ischemia before reconstruction might have deleterious effects on the function of some vital organs and therefore, how to reconstruct the vessels quickly after resection is extremely important. The present study was to introduce a new type of magnetic compression anastomosis （MCA） device to establish a quick non-suture anastomosis of the portal vein after resection in canines.

关键词： magnetic compression anastomosis portal vein reconstruction non-suture anastomosis

Experimental animal models of pulmonary hypertension:Development and challenges

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Animal Models and Experimental Medicine 2022年第3期5卷 207-216页

作者： Xiao-Han Wu Jie-Ling Ma dong ding Yue-Jiao Ma Yun-Peng Wei Zhi-Cheng Jing Department of Cardiology State Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina Medical Science Research Center State Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina

Pulmonary hypertension(PH) is clinically divided into 5 major types, characterized by elevation in pulmonary arterial pressure(PAP) and pulmonary vascular resistance(PVR), finally leading to right heart failure and death. The pathogenesis of this arteriopathy remains unclear, leaving it impossible to target pulmonary vascular remodeling and reverse the deterioration of right ventricular(RV) function. Different animal models have been designed to reflect the complex mechanistic origins and pathology of PH, roughly divided into 4 categories according to the modeling methods: noninvasive models in vivo, invasive models in vivo, gene editing models, and multi-means joint modeling. Though each model shares some molecular and pathological changes with different classes of human PH, in most cases the molecular etiology of human PH is poorly known. The appropriate use of classic and novel PH animal models is essential for the hunt of molecular targets to reverse severe phenotypes.

关键词： animal models BMPR2 chronic hypoxia monocrotaline pulmonary hypertension Sugen 5416