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| 1 | 糖尿病视网膜病变患病率的流行病学调查:在中国6省13473名糖尿病患者中的横断面研究显示文摘目的本研究旨在探究中国糖尿病患者中糖尿病视网膜病变(DR)和视力威胁性糖尿病视网膜病变(STDR)的患病率和严重程度。研究设计、设置与参与者本研究为横断面流行病学调查,研究对象为中国内地地区的糖尿病患者(N=13473)。研究对象为被内科医师诊断为糖尿病,并转诊到筛查门诊的糖尿病患者(其中住院患者占1/3,城市居民占1/3,农村居民占1/3)。研究对象的每只眼睛应用彩色、免散瞳和非立体眼底照相机拍摄2张眼底照片,并根据英国DR分级指南进行分级。主要结果和测量指标DR与STDR的患病率和严重程度。结果在参与本研究的13473例糖尿病患者中,共发现4591例DR和1769例STDR患者,DR的总体患病率为34.08%[95%可信区间(凹)33.28%~34.88%],其中STDR的总体患病率为13.13%(95%C112.56%~13.70%)。在所有研究对象中,12780例参与了眼底照片分级(94.86%)。年龄大于65岁的研究对象患DR或STDR的可能性较低(P〈0.001)。性别对是否患病没有显著影响(P〉0.05)。STDR患者与非STDR患者相比,视力损伤更为严重(P〈0.001)。中国北方DR和STDR的患病率高于南方(P〈0.001)。DR的患病率与糖尿病患病时间f比值比(鲫)2.63;95%C12.42~2.86;P〈0.001]以及糖尿病发病年龄(OR 0.38;95%CI为0.35~0.41;P〈0.001)密切相关。结论DR和STDR在中国内地地区的患病率偏高,并且不同地区患病率存在差异。在DR中,非增殖性DR更常见,但STDR更需要及时的诊断和治疗,特别是在经济欠发达地区。本研究强调了中国内地地区DR筛查和治疗的重要性。 | Liu, Yan Song, Yifan Tao, Liyuan Qiu, Weiqiang Lv, Huibin Jiang, Xiaodan Zhang, Mingzhou Li, Xuemin | 2017 | 英国医学杂志中文版2017,20,11: | 23 |
| 2 | Correlation between tongue manifestations and glucose, total cholesterol, and high-density lipoprotein cholesterol in patients with acute cerebral infarction显示文摘OBJECTIVE: To analyze the association between tongue manifestations and the levels of glucose (GLU), total cholesterol(TCH), and high-density lipoprotein cholesterol(HDL-C) in subjects with acute cerebral infarction.METHODS: Hospitalized patients with first unilateral cerebral infarction in the Neurological Department of Xuanwu Hospital were included and the correlation between tongue fur color, fur nature,and the levels of GLU,TCH, HDL-C were analyzed.RESULTS: HDL level in the thin fur group was higher than that in the thick fur group(P=0.02). The difference in the levels of GLU,TCH, and HDL-C among the groups was significant(P<0.05), classified in terms of slippery, moist, and dry fur. Further comparison between the groups by Student-Newman-Keuls test showed that GLU level in the dry fur group was the highest. Moreover, the TCH level in the slippery fur group was higher than the other two groups.CONCLUSION: A correlation between tongue manifestations and GLU, TCH, HDL-C was identified in the patients with acute cerebral infarction. | Ping Liu Li Gao Juexian Song Haiping Zhao XiaoguangWu Liyuan Huang Pingping Wang Yumin Luo | 2014 | Journal of Traditional Chinese Medicine2014,34,2: | 14 |
| 3 | The Interaction of Population,Industry and Land in Process of Urbanization in China:A Case Study in Jilin Province显示文摘Urbanization is a complex process that covers a wide range of topics, of which population, industry and land urbanization are three important aspects. Jilin Province is an important agricultural province in China. The contradiction between population, industry and land urbanization is especially prominent here, and its coupling development is of great practical significance. In this paper, the coupling degree of population-industry-land urbanization in Jilin Province in 1990, 2000 and 2010 is measured by coupling mode. The spatial pattern of the coupling degree is analyzed by trend surface analysis and global and local spatial autocorrelation. The influence factors and their spatial differentiation are discussed using multiple linear regression(MLR) model and geographic weighted regression(GWR) model. The results show that: 1) the coupling degree of population-industry-land urbanization in Jilin Province is at a low level. Judging from the change of time scale, the urbanization of most research units is becoming more and more coordinated. From the comparison of spatial scales, there is significant spatial difference in the research units of different administrative levels. 2) Judging from the global change trend, the coupling degree of population-industry-land urbanization in the central region is higher than that in western and eastern regions. The coordination of urbanization in the central region is relatively good, and the distribution of the cold and hot spots is basically the same as that overall. 3) The spatial pattern of the coupling degree is related to the cold and hot spot distribution of the influence coefficient of urban population density and per capita urban construction land. The variation of the coupling degree spatial pattern is synchronous with the spatial change of the urban population density influence coefficient. 4) The degree of agglomeration of the urban population is the main factor promoting the coupling pattern of population-industry-land urbanization in Jilin Province, and the extent of its influence is gradually increasing. In addition, the level of city administrative, the efficiency of urban expansion and the capacity of market consumption also have an important influence on the coupling pattern. | LIU Yanjun ZHOU Guolei LIU Degang YU Huisheng ZHU Liyuan ZHANG Jing | 2018 | Chinese Geographical Science2018,28,3: | 12 |
| 4 | Occurrence of Aflatoxin B_(1),deoxynivalenol and zearalenone in feeds in China during 2018-2020显示文摘Background:The current study was conducted to investigate the individual and combined occurrence of aflatoxin B_(1)(AFB_(1)),deoxynivalenol(DON)and zearalenone(ZEN)in feeds from various Provinces of China during 2018 to 2020.A total of 3,507 feed samples,including 2,090 feed ingredients and 1,417 complete feed samples,were collected from different areas of China for mycotoxins analysis.Results:The individual contamination of AFB_(1),DON and ZEN were present in more than 81.9%,96.4% and 96.9% of feed samples,respectively,with average concentration ranges of AFB_(1) between 1.2-27.4μg/kg,DON between 458.0-1,925.4μg/kg and ZEN between 48.1-326.8μg/kg.Notably,0.9%,0.5% and 0.1% of feed ingredients,and 1.2-12.8%,0.9-2.9% and 0-8.9% of complete feeds for pigs,poultry and ruminants with AFB_(1),ZEN and DON that exceeded China’s safety standards,respectively.Moreover,more than 81.5%of feed ingredients and 95.7% of complete feeds were co-contaminated with various combinations of these mycotoxins.Conclusion:This study indicates that the feeds in China were universally contaminated with AFB_(1),DON and ZEN during the past 3 years.These findings highlight the significance of monitoring mycotoxin contaminant levels in the domestic animal feed,and the importance of carrying out feed administration and remediation strategies for mycotoxin control. | Ling Zhao Lei Zhang Zijian Xu Xingda Liu Liyuan Chen Jiefan Dai Niel Alexander Karrow Lvhui Sun | 2022 | Journal of Animal Science and Biotechnology2022,13,1: | 10 |
| 5 | Recent development of methanol electrooxidation catalysts for directmethanol fuel cell显示文摘Direct methanol fuel cells(DMFCs) are very promising power source for stationary and portable miniature electric appliances due to its high efficiency and low emissions of pollutants. As the key material, catalysts for both cathode and anode face several problems which hinder the commercialization of DMFCs.In this review, we mainly focus on anode catalysts of DMFCs. The process and mechanism of methanol electrooxidation on Pt and Pt-based catalysts in acidic medium have been introduced. The influences of size effect and morphology on electrocatalytic activity are discussed though whether there is a size effect in MOR catalyst is under debate. Besides, the non Pt catalysts are also listed to emphasize though Pt is still deemed as the indispensable element in anode catalyst of DMFCs in acidic medium. Different catalyst systems are compared to illustrate the level of research at present. Some debates need to be verified with experimental evidences. | Liyuan Gong Zhiyuan Yang Kui Li Wei Xing Changpeng Liu Junjie Ge | 2018 | Journal of Energy Chemistry2018,27,6: | 9 |
| 6 | Relationship with spatial memory in diabetic rats and protein kinase Cγ,caveolin-1 in the hippocampus and neuroprotective effect of catalpol显示文摘 | Zhou Haicheng Liu Jing Ren Liyuan Liu Wei Xing Qian Men Lili Song Guirong Du Jianling | 2014 | Chinese Medical Journal2014,,5: | 7 |
| 7 | A meta-analysis of Chinese herbal medicines for vascular dementia显示文摘OBJECTIVE: To investigate the efficacy and safety of Chinese herbal medicines in the treatment of patients with vascular dementia. DATA RETRIEVAL: We retrieved publications from Cochrane Library (2004 to July 2011), PubMed (1966 to July 2011), the Chinese Science and Technique Journals Database (1977 to July 2011), the China National Knowledge Infrastructure (1979 to July 2011), Google Scholar (July 2011), and the Chinese Biomedical Database (1977 to July 2011) using the'Chinese medicine OR Chinese herbal medicine' and 'vascular dementia OR mild cognition impair OR multi-infarct dementia OR small-vessel dementia OR strategic infarct dementia OR hypoperfusion dementia OR hemorrhagic dementia OR hereditary vascular dementia'. SELECTION CRITERIA: Randomized controlled trials comparing Chinese herbal medicines with placebo/western medicine in the treatment of patients with vascular dementia were included. Diagnostic standards included Diagnostic and Statistical Manual of Mental Disorders-IV, and National Institute of Neurological Disorders and Stroke and Association Internationale pour la Recherché et l'Enseignement en Neurosciences. Two participants independently conducted literature screening, quality evaluation and data extraction. The quality of each trial was assessed according to the Cochrane Reviewers' Handbook 5.0. MAIN OUTCOME MEASURES: Effective rate, Mini-Mental State Examination scores, Hasegawa Dementia Scale scores, and incidence of adverse reactions. RESULTS: We identified 1 143 articles discussing the effects of Chinese medicine on vascular dementia. Thirty-one of these were included in the analysis. These studies involved a total of 2 868 participants (1 605 patients took Chinese medicine decoctions (treatment group); 1 263 patients took western medicine or placebo). The results of our meta-analysis revealed that Chinese herbal remedies in the treatment group were more efficacious than the control intervention (relative risk (RR)=1.27; 95% confidence interval (CI): 1.18-1.38, P<0.01). Mini-Mental State Examination scores were higher in patients taking Chinese herbal medicines than in those in the control group (weighted mean difference (WMD)=2.83; 95%CI: 2.55-3.12, P<0.01). Patients in the treatment group showed better disease amelioration than those in the control group (Hasegawa Dementia Scale scores; WMD=2.41, 95%CI: 1.48-3.34, P<0.01). There were also considerably fewer adverse reactions among those in the treatment group compared with those in the control group (RR=0.20, 95%CI: 0.08-0.47, P<0.01). CONCLUSION: Chinese herbal medicine appears to be safer and more effective than control measures in the treatment of vascular dementia. However, the included trials were generally low in quality. More well-designed, high-quality trials are needed to provide better evidence for the assessment of the efficacy and safety of Chinese medicines for vascular dementia. | Xiude Qin Yu Liu Yanqing Wu Shuo Wang Dandan Wang Jinqiang Zhu Qiaofeng Ye Wei Mou Liyuan Kang | 2013 | Neural Regeneration Research2013,8,18: | 7 |
| 8 | Chimeric antigen receptor T (CAR-T) cells expanded with IL-7/IL-15 mediate superior antitumor effects显示文摘Dear Editor,Genetic engineering of T cells to express chimeric antigen receptors(CARs)is an efficient approach for clinical therapy of hematological malignancies(Kuwana et al.,1987;Eshhar et al.,1993;Barrett et al.,2014).The CARs endow T cells with the ability to recognize specific antigens and bind them in an MHC-independent mariner,thereby overcoming some of the mechanisms that mediate tumor immune escape.In addition,by providing co-stimulatory signals,CARs endow T cells with enhanced cytotoxicity and persistence compared with primary T cells.A typical CAR comprises a single-chain variable frag me nt(scFv)derived from a monoclonal an tibody(mAb)for an tige n recog nition and signaling domains for co?activation(Eshhar et al.,1993;Sadelain et al.,2013). | Jianxia Zhou Liyuan Jin Fuping Wang Yuan Zhang Bing Liu Tongbiao Zhao | 2019 | Protein & Cell2019,10,10: | 7 |
| 9 | Efficient and stable tin-based perovskite solar cells by introducing π-conjugated Lewis base显示文摘Tin-based perovskite solar cells(TPSCs)as the most promising candidate for lead-free PSCs have incurred extensive researches all over the world.However,the crystallization process of tin-based perovskite is too fast during the solution-deposited process,resulting in abundant pinholes and poor homogeneity that cause serious charge recombination in perovskite layer.Here,we employed theπ-conjugated Lewis base molecules with high electron density to systematically control the crystallization rate of FASnI3 perovskite by forming stable intermediate phase with the Sn-I frameworks,leading to a compact and uniform perovskite film with large increase in the carrier lifetime.Meanwhile,the introduction of theπ-conjugated systems also retards the permeation of moisture into perovskite crystal,which significantly suppresses the film degradation in air.These benefits contributed to a stabilizing power conversion efficiency(PCE)of 10.1%for the TPSCs and maintained over 90%of its initial PCE after 1000-h light soaking in air.Also,a steady-state efficiency of 9.2%was certified at the accredited test center. | Tianhao Wu Xiao Liu Xin He Yanbo Wang Xiangyue Meng Takeshi Noda Xudong Yang Liyuan Han | 2020 | Science China Chemistry2020,63,1: | 6 |
| 10 | Adipocyte-derived SFRP5 inhibits breast cancer cells migration and invasion through Wnt and epithelial-mesenchymal transition signaling pathways显示文摘Objective:Obesity is closely associated with metastasis in breast cancer patients.Secreted frizzled-related protein 5(SFRP5),one of the novel adipokines with anti-inflammatory properties,is associated with obesity.This study aims to study the role of SFRP5 in the crosstalk between obesity and breast cancer metastasis and identify the underlying mechanism.Methods:3T3-L1 pre-adipocytes were differentiated to mature adipocytes and a hypertrophic adipocyte model was induced with palmitic acid(PA).Cell motility was measured in MDA-MB-231 and MCF-7 breast cancer cells co-cultured with adipocytes conditioned medium(CM)with or without SFRP5 protein.Wnt and epithelialmesenchymal transition(EMT)signal pathways were investigated by western blot.Circulating SFRP5 level in 218 breast cancer patients and the association with clinicopathologic characteristics of breast cancer were further determined.Online databases ENCORI and PREDICT Plus were used to exam the link between SFRP5 and prognosis.Results:Reduced SFRP5 level was detected in the hypertrophic adipocyte model.Recombinant SFRP5 protein inhibited MDA-MB-231 and MCF-7 cells invasion and migration induced by PA-treated adipocyte CM,and SFRP5 inhibition by specific antibody reversed the effect of SFRP5.Furthermore,SFRP5 significantly inhibited Wnt and downstream EMT in breast cancer cells.Low circulating SFRP5 level correlated with body mass index(BMI),lymph node(LN)metastasis,TNM stage and high Ki67 expression in breast cancer patients.Increased SFRP5 level was associated with favorable predicted survival.Kaplan-Meier curves showed high SFRP5 level in tumor tissue was associated with better outcome of breast cancer patients.Conclusions:Our findings demonstrated SFRP5 is a vital adipokine that mediates the crosslink between obesity and the metastatic potential of breast cancer.Promotion of SFRP5 expression in the adipose microenvironment may represent a novel approach for preventing breast cancer metastasis. | Wenzhong Zhou Chunmiao Ye Liang Li Liyuan Liu Fei Wang Lixiang Yu Fei Zhou Yujuan Xiang Yongjiu Wang Gengshen Yin Zhongbing Ma Qinye Fu Qiang Zhang Dezong Gao Shuya Huang Zhigang Yu | 2020 | Chinese Journal of Cancer Research2020,32,3: | 5 |
| 11 | High-speed visual target tracking with mixed rotation invariant description and skipping searching显示文摘This paper proposes a novel high-speed visual target tracking system based on mixed rotation invariant description(MRID) and skipping searching method. MRID is a novel rotation invariant description of texture and edge information by annular histograms and dominant direction. It overcomes rotation variant and large computation issues in conventional LBP-HOG feature description. The skipping searching method used in tracking can remarkably decrease the computation time by avoiding repeated searching operations.The proposed tracking system contains an image sensor, a hierarchical vision processor and an actuator with2 dimensions of freedom(DOF). The vision processor integrates processors with pixel-and row-level parallelism to speed up the tracking algorithm. Experiment results show that the proposed system can achieve over 1000-fps processing speed of the tracking algorithm under 750 × 480 resolution image. | Yongxing YANG Jie YANG Zhongxing ZHANG Liyuan LIU Nanjian WU | 2017 | Science China(Information Sciences)2017,60,6: | 5 |
| 12 | The landscape of aging显示文摘Aging is characterized by a progressive deterioration of physiological integrity,leading to impaired functional ability and ultimately increased susceptibility to death.It is a major risk factor for chronic human diseases,including cardiovascular disease,diabetes,neurological degeneration,and cancer.Therefore,the growing emphasis on “healthy aging” raises a series of important questions in life and social sciences.In recent years,there has been unprecedented progress in aging research,particularly the discovery that the rate of aging is at least partly controlled by evolutionarily conserved genetic pathways and biological processes.In an attempt to bring full-fledged understanding to both the aging process and age-associated diseases,we review the descriptive,conceptual,and interventive aspects of the landscape of aging composed of a number of layers at the cellular,tissue,organ,organ system,and organismal levels. | Yusheng Cai Wei Song Jiaming Li Ying Jing Chuqian Liang Liyuan Zhang Xia Zhang Wenhui Zhang Beibei Liu Yongpan An Jingyi Li Baixue Tang Siyu Pei Xueying Wu Yuxuan Liu Cheng-Le Zhuang Yilin Ying Xuefeng Dou Yu Chen Fu-Hui Xiao Dingfeng Li Ruici Yang Ya Zhao Yang Wang Lihui Wang Yujing Li Shuai Ma Si Wang Xiaoyuan Song Jie Ren Liang Zhang Jun Wang Weiqi Zhang Zhengwei Xie Jing Qu Jianwei Wang Yichuan Xiao Ye Tian Gelin Wang Ping Hu Jing Ye Yu Sun Zhiyong Mao Qing-Peng Kong Qiang Liu Weiguo Zou Xiao-Li Tian Zhi-Xiong Xiao Yong Liu Jun-Ping Liu Moshi Song Jing-Dong J.Han Guang-Hui Liu | 2022 | Science China(Life Sciences)2022,65,12: | 4 |
| 13 | Discovery and its geological significance of the mantle- derived helium in the inclusions of the Ordovician oil-bearing reservoir rocks in the Huanghua depression,China显示文摘The values of the helium isotopes in the inclusions of the Ordovician reservoir rocks in the Kongxi buried hill belt in the Huanghua depression were first measured and the source of helium and its geological significance were investigated in comparison with those of the helium isotopes in the conclusions in the Ordovician rocks in the Ordos basin and the Tarim basin. The input of the mantle-derived helium into the inclusions in the carbonate reservoir rocks was found from the Konggu 3 well, the Konggu 4 well, and the Konggu 7 well in the Kongxi buried hill belt. The 3He/4He and R/Ra in the conclusions in the Ordovician oil-bearing reservoir rocks in the Konggu 7 well average 2.54×10-6(3) (sample quantity, the same below) and 1.82(3), respectively. The percent of the mantle-derived helium in the inclusions of the reservoir rocks in the Konggu 7 well reaches up to an average of 23.0%(3). The age of the contribution of the mantle-derived helium to the inclusions in the Kongxi buried hill belt is in the Late Triassic or the Early Tertiary. The finding of the mantle-derived helium shows that the interaction of the deep crust with mantle and the activity of deep faults occurred, the terrestrial heat flow value was high, and mantle-derived inorganic gas pools might be formed in the Kongxi buried hill belt. The finding of the mantle-derived helium in the inclusions of oil-bearing reservoir rocks also provides a new way for researching the activity of mantle-derived matter and its associated geological problems. | ZHANG Xiaobao XU Yongchang SUN Mingliang CHENG Keming LIU Wenhui LI Xiufen MA Liyuan | 2004 | Science China Earth Sciences2004,47,1: | 4 |
| 14 | A 256×256 time-of-flight image sensor based on center-tap demodulation pixel structure显示文摘This paper proposes a 256×256 time-of-flight(TOF) image sensor based on the center-tap(CT)demodulation pixel structure. The image sensor can capture both the two-dimensional(2D) high speed image and the three-dimensional(3D) depth image. The CT pixel consists of two split pinned photodiode(PPD)regions and two pairs of transfer transistors. The transfer transistors adopt a non-uniform doped channel(NUDC) structure, which can increase the electron transfer speed along the transfer channel and eliminate the image lag for high speed imaging. The pixel size is 10 μm×10 μm, and we design the implementation process of the pixel to increase the electron transfer speed. The sensor is fabricated in a 0.18 μm 1P5 M CMOS image sensor process. Test results show that it can capture the 430-fps intensity image and the 90-fps depth image in two different imaging modes. The rectified non-linearity within the 1.0–7.5 m depth measurement range achieves less than 3 cm, and the measurement accuracy achieves 4.0 cm at 2.5 m, corresponding to the relative error of1.6%. | Zhe CHEN Shan DI Zhongxiang CAO Qi QIN Fei JI Liyuan LIU Nanjian WU | 2016 | Science China(Information Sciences)2016,59,4: | 4 |
| 15 | Acetate-assistant efficient cation-exchange of halide perovskite nanocrystals to boost the photocatalytic CO_(2) reduction显示文摘The judicious implantation of active metal cations into the surface of semiconductor nanocrystal(NC)through cation-exchange is one of the facile and viable strategies to enhance the activity of catalysts for photocatalytic CO_(2)reduction,by shortening the transfer pathway of photogenerated carriers and increasing the active sites simultaneously.However,cation-exchange is hard to achieve for halide perovskite NCs owing to the stable octahedron of[PbX6]4−with strong interaction between halogen and lead.Herein,we report a facile method to overcome this obstacle by replacing partial Br−with acetate(Ac−)to generate CsPbBr_(3) NC(coded as CsPbBr_(3−x)Ac_(x)).A small amount of Ac−instead of Br−does not change the crystal structure of halide perovskite.Owing to the weaker interaction between acetate and lead in comparison with bromide,the corresponding octahedron structure containing acetate in CsPbBr_(3−x)Ac_(x) can be easily opened to realize efficient cation-exchange with Ni^(2+) ions.The resulting high loading amount of Ni^(2+) as active site endows CsPbBr_(3−x)Ac_(x) with an improved performance for photocatalytic CO_(2)reduction under visible light irradiation,exhibiting a significantly increased CO yield of 44.09μmol·g^(−1)·h^(−1),which is over 8 and 3 times higher than those of traditional pristine CsPbBr_(3) and nickel doped CsPbBr_(3) NC,respectively.This work provides a critical solution for the efficient metal doping of low-cost halide perovskite NCs to enhance their photocatalytic activity,promoting their practical applications in the field of photocatalysis. | Jialin Cheng Yanfei Mu Liyuan Wu Zhaolei Liu Ke Su Guangxing Dong Min Zhang Tongbu Lu | 2022 | Nano Research2022,15,3: | 3 |
| 16 | The effect of the rice blast resistance gene Pi36 on the expression of disease resistance-related genes显示文摘The resistance gene Pi36 confers a stable and high level of resistance against Chinese isolates of the rice blast pathogen Mag-naporthe oryzae.Quantitative real time RT-PCR was used to investigate the expression profiles of various resistance-related genes in both the Pi36/AvPi36 incompatible interactions.Among 17 members of the OsMAPK family,OsMAPK2,OsMAPK4,OsMAPK8 and OsMAPK15 were differentially expressed,as were OsWRKY30,OsWRKY32,OsWRKY64 and OsWRKY67 among the 13 OsWRKY members studied.The induction of the expression of genes from both of these families suggests that both the JA and SA pathways are involved in Pi36-mediated defence.Other genes differentially expressed included the OsbZIP transcription factors,OsNIF1 and OsNIF2,and the NPR1 homologue OsNH2,all of which were reported in the rice blast pathosystem.The in-volvement of these genes illustrates the complexity of the downstream signalling pathways involved in the Pi36/AvrPi36 interaction. | LIU XinQiong LI YuanYuan WANG LiYuan LIU XueQun WANG ChunTai WANG Ling PAN QingHua | 2010 | Chinese Science Bulletin2010,55,18: | 3 |
| 17 | Antimony transformation and mobilization from stibnite by an antimonite oxidizing bacterium Bosea sp. AS-1显示文摘Soils and waters are heavily contaminated by antimony in Xikuangshan(XKS)mine area.It is widely accepted that oxidative dissolution of sulfide minerals and aqueous dissolution are the most prevalent geochemical mechanisms for the release of Sb to the environment.Bosea sp.AS-1 is an antimonite-oxidizer isolated from the mine slag in Xikuangshan Sb mine.Whole genome sequencing revealed the presence of multiple sulfur-oxidizing genes,antimony(Sb)metabolism genes and carbon fixation genes in AS-1 s genome.We therefore hypothesized that under oxic conditions,AS-1 could mediate the oxidation of sulfide and Sb(Ⅲ)in stibnite(Sb_(2)S_(3))and lead to the release of Sb.Indeed,strain AS-1 was discovered as an autotrophic Sb(Ⅲ)-oxidizer.Antimony mobilization studies conducted with strain AS-1showed significantly enhanced mobilization of Sb,and complete oxidation of released Sb and sulfur to Sb(V)and sulfate.In addition,AS-1 induced a faster release of Sb under heterotrophic condition,and new acicular minerals might form.These findings support the hypothesis that microorganisms play an important role in the mobilization and transformation of Sb in XKS mine area and may contribute to our further understanding of the Sb biogeochemical redox cycle in natural environment. | Li Xiang Chaoyang Liu Deng Liu Liyuan Ma Xuan Qiu Hongmei Wang Xiaolu Lu | 2022 | Journal of Environmental Sciences2022,34,1: | 3 |
| 18 | MYB106 is a negative regulator and a substrate for CRL3^(BPM) E3 ligase in regulating flowering time in Arabidopsis thaliana显示文摘Flowering time is crucial for successful reproduction in plants, the onset and progression of which are strictly controlled. However, flowering time is a complex and environmentally responsive history trait and the underlying mechanisms still need to be fully characterized. Post-translational regulation of the activities of transcription factors(TFs) is a dynamic and essential mechanism for plant growth and development. CRL3 BPME3 ligase is a CULLIN3-based E3 ligase involved in orchestrating protein stability via the ubiquitin proteasome pathway. Our study shows that the mutation of MYB106 induced early flowering phenotype while over-expression of MYB106 delayed Arabidopsis flowering. Transcriptome analysis of myb106 mutants reveals 257 differentially expressed genes between wild type and myb106-1 mutants, including Flowering Locus T(FT) which is related to flowering time. Moreover, in vitro electrophoretic mobility shift assays(EMSA), in vivo chromatin immunoprecipitation quantitative polymerase chain reaction(ChIP-q PCR) assays and dual luciferase assays demonstrate that MYB106 directly binds to the promoter of FT to suppress its expression. Furthermore, we confirm that MYB106 interacts with BPM proteins which are further identified by CRL3 BPME3 ligases as the substrate. Taken together, we have identified MYB106 as a negative regulator in the control of flowering time and a new substrate for CRL3 BPM E3 ligases in Arabidopsis. | Liu Hong Fangfang Niu Youshun Lin Shuang Wang Liyuan Chen Liwen Jiang | 2021 | Journal of Integrative Plant Biology2021,63,6: | 3 |
| 19 | The Main Progress of Perovskite Solar Cells in 2020-2021显示文摘Perovskite solar cells(PSCs)emerging as a promising photovoltaic technology with high efficiency and low manufacturing cost have attracted the attention from all over the world.Both the efficiency and stability of PSCs have increased steadily in recent years,and the research on reducing lead leakage and developing eco-friendly lead-free perovskites pushes forward the commercialization of PSCs step by step.This review summarizes the main progress of PSCs in 2020 and 2021 from the aspects of efficiency,stability,perovskite-based tandem devices,and lead-free PSCs.Moreover,a brief discussion on the development of PSC modules and its challenges toward practical application is provided. | Tianhao Wu Zhenzhen Qin Yanbo Wang Yongzhen Wu Wei Chen Shufang Zhang Molang Cai Songyuan Dai Jing Zhang Jian Liu Zhongmin Zhou Xiao Liu Hiroshi Segawa Hairen Tan Qunwei Tang Junfeng Fang Yaowen Li Liming Ding Zhijun Ning Yabing Qi Yiqiang Zhang Liyuan Han | 2021 | Nano-Micro Letters2021,13,10: | 2 |
| 20 | Option Pricing under the Double Exponential Jump-Diffusion Model with Stochastic Volatility and Interest Rate显示文摘This paper proposes an efficient option pricing model that incorporates stochastic interest rate(SIR),stochastic volatility(SV),and double exponential jump into the jump-diffusion settings.The model comprehensively considers the leptokurtosis and heteroscedasticity of the underlying asset’s returns,rare events,and an SIR.Using the model,we deduce the pricing characteristic function and pricing formula of a European option.Then,we develop the Markov chain Monte Carlo method with latent variable to solve the problem of parameter estimation under the double exponential jump-diffusion model with SIR and SV.For verification purposes,we conduct time efficiency analysis,goodness of fit analysis,and jump/drift term analysis of the proposed model.In addition,we compare the pricing accuracy of the proposed model with those of the Black-Scholes and the Kou(2002)models.The empirical results show that the proposed option pricing model has high time efficiency,and the goodness of fit and pricing accuracy are significantly higher than those of the other two models. | Rongda Chen Zexi Li Liyuan Zeng Lean Yu Qi Lin Jia Liu | 2017 | Journal of Management Science and Engineering2017,2,4: | 2 |