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| 1 | China's Labor Transition and the Future of China's Rural Wages and Employment显示文摘This paper contributes to the assessment of China's rural labor markets.According to our data,the increase in off-farm employment that China experienced during the 1980s and1990s continued during the 2000s.Our analysis shows that migration has become the most prevalent off-farm activity,although the destination of migrants is shifting from outside of one's province to destinations closer to home.The present paper finds that large shares of male and female individuals,especially those under 40 years,are working off the farm.These findings represent an important contribution to the labor economics field.First,the results of the present paper reveal that the labor transition from the agricultural sector to the non-agricultural sector for key segments of China's rural labor force is nearly complete.Second,although a large share of China's rural labor force work in agriculture,most of these workers are older men and women(and likely would not be willing to take low-wage,labor-intensive jobs).Third,the rising unskilled wage rate in China is partially a result of the tightening of the labor force in the young age cohorts.Finally,due to factors associated with the one child policy and other demographic transition forces,successive age cohorts will continue to fall in absolute number in the coming decade.Assuming China's growth continues,we expect to see further wage increases since it will take higher wages to coax more workers to work off the farm. | Qiang Li Jikun Huang Renfu Luo Chengfang Liu | 2013 | China & World Economy2013，21，3： | 16 |
| 2 | Exploiting Geo-Social Correlations to Improve Pairwise Ranking for Point-of-Interest Recommendation显示文摘Recently, as location-based social network(LBSN) rapidly grow, point-of-interest(POI) recommendation has become an important way to help people locate interesting places. Nowadays, there have been deep studies conducted on the geographical and social influence in the point-of-interest recommendation model based on the rating prediction. The fact is, however, relying solely on the rating fails to reflect the user's preferences very accurately, because the users are most concerned with the list of ranked point-of-interests(POIs) on the actual output of recommender systems. In this paper, we propose a co-pairwise ranking model called Geo-Social Bayesian Personalized Ranking model(GSBPR), which is based on the pairwise ranking with the exploiting geo-social correlations by incorporating the method of ranking learning into the process of POI recommendation. In this model, we develop a novel BPR pairwise ranking assumption by injecting users' geo-social preference. Based on this assumption, the POI recommendation model is reformulated by a three-level joint pairwise ranking model. And the experimental results based on real datasets show that the proposed method in this paper enjoys better recommendation performance compared to other state-of-the-art POI recommendation models. | Rong Gao Jing Li Bo Du Xuefei Li Jun Chang Chengfang Song Donghua Liu | 2018 | China Communications2018，15，7： | 9 |
| 3 | Zacopride selectively activates the Kir2.1 channel via a PKA signaling pathway in rat cardiomyocytes显示文摘We recently reported that zacopride is a selective inward rectifier potassium current (IK1 ) channel agonist, suppressing ventricular arrhythmias without affecting atrial arrhythmias. The present study aimed to investigate the unique pharmacological properties of zacopride. The whole-cell patch-clamp technique was used to study IK1 currents in rat atrial myocytes and Kir2.x currents in human embryonic kidney (HEK)-293 cells transfected with inward rectifier potassium channel (Kir)2.1, Kir2.2, Kir2.3, or mutated Kir2.1 (at phosphorylation site S425L). Western immunoblots were performed to estimate the relative protein expression levels of Kir2.x in rat atria and ventricles. Results showed that zacopride did not affect the IK1 and transmembrane potential of atrial myocytes. In HEK293 cells, zacopride increased Kir2.1 homomeric channels by 40.7%±9.7% at 50 mV, but did not affect Kir2.2 and Kir2.3 homomeric channels, and Kir2.1-Kir2.2, Kir2.1-Kir2.3 and Kir2.2-Kir2.3 heteromeric channels. Western immunoblots showed that similar levels of Kir2.3 protein were expressed in rat atria and ventricles, but atrial Kir2.1 protein level was only 25% of that measured in the ventricle. In addition, 5-hydroxytryptamine (5-HT) 3 receptor was undetectable, whereas 5-HT 4 receptor was weakly expressed in HEK293 cells. The Kir2.1-activating effect of zacopride in these cells was abolished by inhibition of protein kinase A (PKA), but not PKC or PKG. Furthermore, zacopride did not activate the mutant Kir2.1 channel in HEK293 cells but selectively activated the Kir2.1 homomeric channel via a PKA-dependent pathway, independent to that of the 5-HT receptor. | ZHANG Li LIU QingHua LIU ChengFang ZHAI XuWen FENG QiLong XU RuiLing CUI XiangLi ZHAO ZhiQing CAO JiMin WU BoWei | 2013 | Science China(Life Sciences)2013，56，9： | 7 |
| 4 | Correlation between the Amplitude of Glucose Excursion and the Oxidative/Antioxidative System in Subjects with Different Types of Glucose Regulation显示文摘Objective To investigate effects of glucose excursion on the oxidative/antioxidative system in subjects with different types of glucose regulation. Methods A total of 30 individuals with normal glucose regulation (NGR), 27 subjects with impaired glucose regulation (IGR) and 27 subjects with newly diagnosed type 2 diabetes mellitus (T2DM) were selected and recruited for 3 days' continuous glucose monitor system (CGMS) assessment. The data from CGMS was used to calculate the mean amplitude of glycemic excursion (MAGE), mean blood glucose (MBG) and its standard deviation (SDBG), area under the ROC curve when the blood glucose >5.6 mmol/L within 24 h (AUC 5.6), mean of daily differences (MODD), and mean postprandial glucose excursion (MPPGE). In all groups, the content or activity of malondialdehyde (MDA), total antioxidation capacity (TAOC) and glutathione peroxidase (GSH‐Px) were detected. Results Glucose excursion parameters of subjects with T2DM or IGR were higher than those of NGR subjects (P<0.05 or 0.01). Moreover, Glucose excursion parameters of T2DM subjects were higher than those of IGR subjects (P<0.05 or 0.01). Subjects with T2DM or IGR had significant higher MDA levels and lower GSH‐Px/MDA and TAOC/MDA levels compared to NGR subjects (P<0.01). T2DM subjects had even higher MDA levels and lower GSH‐Px/MDA levels than IGR (P<0.05 or 0.01). According to the median of normal population for MAGE, T2DM and IGR subjects were divided into MAGE>2.6mmol/L Group and MAGE≤2.6mmol/L Group. MAGE>2.6mmol/L Group had higher levels of MDA and lower levels of GSH‐Px/MDA than MAGE≤2.6mmol/L Group (P<0.05). There was no significant difference between the two groups (P>0.05) in terms of the levels of TAOC/MDA. Pearson correlation analysis showed that MDA was positively correlated with FPG, 2hPG, MAGE, and SBP. GSH‐Px/MDA was negatively correlated with MAGE and TC. TAOC/MDA was negatively correlated with FPG. Partial correlation analysis showed that the relationship between MDA and MAGE, GSH‐Px/MDA, and MAGE remained significant after adjustments for the other differences among groups. Conclusion Glucose excursion contributed significantly to promoting lipid peroxidation and decreasing antioxidation capacity than chronic sustained hyperglycemia did in the subjects with different types of glucose regulation. | WANG Zhou LI Lin ZHENG FenPing JIA ChengFang RUAN Yu LI Hong | 2011 | Biomedical and Environmental Sciences2011，24，1： | 6 |
| 5 | How Off-farm Employment Affects Technical Efficiency of China's Farms" The Case of Jiangsu显示文摘 | Linxiu Zhang Weiliang Su Tor Eriksson Chengfang Liu | 2016 | China & World Economy2016，24，3： | 6 |
| 6 | Machine Vision Analysis of Characteristics and Image Information Base Construction for Hybrid Rice Seed显示文摘Incompletely closed glumes, germination on panicle and disease ara thrae important factors causing poor seed quality of hybrid rice. To determine how many and which categories should be classified to meet the demand for seed in rice production, the effects of various degrees of incompletely closed glumes, germination on panicle and disease on germination percentage at the harvest and after storage for six months were studied by standard germination percentage test. Six categories of seeds with germ (germinated seeds), severe disease, incompletely closed glumes, spot disease, fine fissure and normal seeds were inspected and then treated separately. Images of the five hybrid rice seed (Jinyou 402, Shanyou 10, Zhongyou 27, Jiayou 99 and Ⅱ you 3207) were acquired with a self-developed machine vision system. Each image could be processed to get the feature values of seed region such as length, width, ratio of length to width, araa, solidity and hue. Then all the images of normal seeds were calculated to draw the feature value ranges of each hybrid rice variety. Finally, an image information base that stores typical images and related feature values of each variety was established. This image information base can help us to identify the classification limit of characteristics, and provide the reference of the threshold selection. The management of large numbers of pictures and the addition of new varieties have been supported. The research laid a foundation for extracting image features of hybrid rice seed, which is a key approach to futura quality inspection with machine vision. | CHENGFang LIuZhao-yan YINGYi-bin | 2005 | Rice science2005，12，1： | 5 |
| 7 | Opening of the inward rectifier potassium channel alleviates maladaptive tissue repair following myocardial infarction显示文摘里面的整流器钾水流(IK1 ) 的激活隧道被报导了与室的心律不齐的抑制被联系。在这研究,我们测试了与 zacopride (ZAC ) IK1 隧道开在心肌的梗塞以后涉及织物修理的调整的假设。Sprague-Dawley 老鼠服从于冠的动脉结扎, ZAC intraperitoneally 被管理(15 諟?牦吗? | Chengfang Liu Enli Liu Tiane Luo Weifang Zhang Rongli He | 2016 | Acta Biochimica et Biophysica Sinica2016，48，8： | 4 |
| 8 | Study of temperature and precipitation change in upstream mountain area of the Hexi inland river basin since 1960s显示文摘All rivers in the Hexi inland region of Gansu Province, China, originate from the northern slope of the Qilian Mountains. They are located in the southern portion of the region and respectively belong to the three large river systems from east to west, the Shiyang, Heihe and Shule river basins. These rivers are supplied by precipitation, snowmelt and ice-melt runoff from the Qilian Mountain area. Therefore, changes of precipitation and temperature in the upstream watersheds of these rivers have an important effect on changes of mountainous runoff and reasonable utilization of water resources in this region. For this reason, the Qilian Mountain area, upstream watersheds and runoff forming areas of these rivers are chosen as the study area. The change characteristics and variation trend of temperature and precipitation in this area under the backdrop of global warming are analyzed based on observational data of relational weather and hydrologic stations in the area. Results show that temperatures in the upriver mountain areas of these three large river basins have been increasing, although the increasing degree is differentially affected by global warming. The rising extent of annual and seasonal temperatures in the upstream mountain area of the Shule river basin located in the western Qilian Mountains, were all largest over the past 50 years. Precipitation in the upstream mountain areas of Hexi region' three river basins located respectively in the western, middle and eastern Qilian Mountains have been presenting an increasing trend to varying degrees as a whole for more than 50 years. This means that climate in the upstream mountain areas of Hexi region' three river basins are becoming increasingly warmer and moister over the past 50 years, which will be very good for the ecological environment and agricultural production in the region. | YongChao Lan HongLang Xiao XingLin Hu HongWei Ding SongBing Zou ChengFang La Jie Song | 2012 | Research in Cold and Arid Regions2012，4，6： | 4 |
| 9 | Prognostic value of clinicopathological characteristics in patients with pancreatic cancer显示文摘Background:The purpose of this study was to analyze me effects of all clinical characteristics on the overall survival time,in order to provide a basis for determining the prognostic factor of patients with pancreatic cancer.Methods:A total of 103 pancreatic cancer patients were admitted to the Department of Radiotherapy and Chemotherapy of the Ruijin Hospital,Shanghai Jiaotong University School of Medicine,between January 2002 and December 2012.There were 68 men and 35 women;the median age was 62 years.Diagnoses of pancreatic cancer in all patients were confirmed by histopathology,cytology,or clinical diagnosis.The Kaplan-Meier method was performed to calculate the overall survival rate.The log-rank method was used to examine the univariate analysis.The Cox regression model was performed for multivariate analysis.Results:The median survival time was 293 days,the 1-,2-,and 3-year survival rates were 27.18%,5.83%,and 1.94%,respectively.Cox regression analysis revealed that age(P=0.015),Karnofsky performance status(PS)(P=0.002),surgical types(P<0.001),and platelet counts(P<0.001) were independent prognostic factors affecting the overall survival of patients with pancreatic cancer.Conclusions:Pancreatic cancer had a poor prognosis,the general physical condition,age,the availability of radical surgery,and platelet counts were factors influencing the overall survival of patients with pancreatic cancer. | Mei Geng Haoping Xu Ruobing Ren Qing Qu Chengfang Shangguan Junwei Wu Jinsong Jiang Hao Li Weiguo Cao | 2015 | Chinese Journal of Cancer Research2015，27，5： | 4 |
| 10 | A Tilt-correction Adaptive Optical System for the Solar Telescope of Nanjing University显示文摘A tilt-correction adaptive optical system installed on the 430 mm Solar Telescope of Nanjing University has been put in operation. It consists of a tip-tilt mirror, a correlation tracker and an imaging CCD camera. An absolute difference algorithm is used for detecting image motion in the correlation tracker. The sampling frequency of the system is 419 Hz. We give a description of the system's configuration, an analysis of its performance and a report of our observational results. A residual jitter of 0.14 arcsec has been achieved. The error rejection bandwidth of the system can be adjusted in the range 5-28 Hz according to the beacon size and the strength of atmospheric turbulence. | Chang-HuiRao Wen-HanJiang ChengFang NingLing Wei-ChaoZhou Ming-DeDing Xue-JunZhang Dong-HongChen meiLi Xiu-FaGao TianMi | 2003 | Chinese Journal of Astronomy and Astrophysics2003，3，6： | 4 |
| 11 | How Are Secondary Vocational Schools in China Measuring up to Government Benchmarks?显示文摘Drawing on a survey of 106 secondary vocational schools and 7309 students in two provinces of China,this descriptive paper assesses whether vocational schooling is measuring up to government benchmarks for quality and whether poor students are able to access quality schools.We find that secondary vocational schoob have met government benchmarks for teacher qualification and training,student opportunities for practical training and adequate facilities.Furthermore,poor students access schoob of similar quality to non-poor students,even though 34 percent of poor students do not receive financial aid.We conclude that recent policies are successfully ensuring secondary vocational school quality and equity of access to school quality between poor and non-poor students.However,financial aid policies should be re-examined,such that poor students receive sufficient coverage.Moreover,given that input-based measures only proxy school quality,the government should consider holding schoob accountable for outcomes such as student learning. | Hongmei Yi Linxiu Zhang Chengfang Liu James Chu Prashant Loyalka May Maani Jianguo Wei | 2013 | China & World Economy2013，21，3： | 4 |
| 12 | Effect of Migration on Children's Self-esteem in Rural China显示文摘China's rapid economic growth has been facilitated by its large volume of rural to urban migration.China's projected future development,especially increasing urbanization,implies that such migration will further intensify.However,migration does not come without cost.There are concerns about the potential negative impacts of migration on children 's care,education,and,in particular,the self-esteem of children left behind in villages where one or both parents have out-migrated to cities.In this paper,we employ unique survey data collected from Shaanxi Province,where more than 4700 ninth grade students from 36 rural junior high schools in five counties were surveyed in late 2011.The results show that having both parents migrate into cities significantly reduced children 's self-esteem.The effects are also gender sensitive.Girls that had a father or both parents who had out-migrated were inclined to have lower self-esteem than boys.Moreover,our study findings indicate that parental migration decreased children 's self-esteem more for individuals with initial low self-esteem. | Xuefeng Zhan Shaoping Li Chengfang Liu Linxiu Zhang | 2014 | China & World Economy2014，22，4： | 2 |
| 13 | Melatonin alleviates alcoholic liver disease via EGFR-BRG1-TERT axis regulation显示文摘Chronic alcohol consumption causes liver steatosis,cell death,and inflammation.Melatonin(MLT)is reported to alleviate alcoholic liver disease(ALD)-induced injury.However,its direct regulating targets in hepatocytes are not fully understood.In the current study,a cell-based screening model and a chronic ethanol-fed mice ALD model were used to test the protective mechanisms of MLT.MLT ameliorated ethanol-induced hepatocyte injury in both cell and animal models(optimal doses of 10μmol/L and 5 mg/kg,respectively),including lowered liver steatosis,cell death,and inflammation.RNA-seq analysis and loss-of-function studies in AML-12 cells revealed that telomerase reverse transcriptase(TERT)was a key downstream effector of MLT.Biophysical assay found that epidermal growth factor receptor(EGFR)on the hepatocyte surface was a direct binding and regulating target of MLT.Liver specific knock-down of Tert or Egfr in the ALD mice model impaired MLT-mediated liver protection,partly through the regulation of nuclear brahma-related gene-1(BRG1).Long-term administration(90 days)of MLT in healthy mice did not cause evident adverse effect.In conclusion,MLT is an efficacious and safe agent for ALD alleviation.Its direct regulating target in hepatocytes is EGFR and downstream BRG1-TERT axis.MLT might be used as a complimentary agent for alcoholics. | Zhaodi Che Yali Song Chengfang Xu Wei Li Zhiyong Dong Cunchuan Wang Yixing Ren Kwok-Fai So George L.Tipoe Fei Wang Jia Xiao | 2023 | Acta Pharmaceutica Sinica B2023，13，1： | 2 |
| 14 | Hydrothermal Synthesis, Structure and Property of Transition Metal(Mn, Zn, Cd or Pb) Coordination Frameworks Using Quinoline-8-oxy-acetate Acid and Dicarboxylic Acid as Ligands显示文摘 | ZHANG Guochun QIAO Chengfang LIANG Jiehui WEI Qing XIA Zhengqiang CHEN Sanping | 2015 | Chemical Research in Chinese Universities2015，31，4： | 2 |
| 15 | Detecting and tracking dim moving point target in IR image sequence显示文摘 | Fei Zhang Chengfang Li Lina Shi | 2005 | Infrared Physics & Technology2005，46，4： | 1 |
| 16 | Re- search and development of CNC cold frame bender 显示文摘 | LI Peiyong WANG Chengfang MAO Yunsheng | 2008 | Journal of Ship Production2008，，1： | 1 |
| 17 | Detecting and trackingdim moving point target in IR image sequence显示文摘 | Fei Zhang Chengfang Li Lina Shi | 2005 | InfraredPhysics&Technology2005，46，： | 1 |
| 18 | The crystallization characteristics of polypmpylene and low ethylene content polypropylene copolymer withcopolyesters显示文摘 | Ou Chengfang | 2002 | European Polymer Journal2002，，38： | 1 |
| 19 | Resource Recovery of Waste Fly Ash:Synthetic of Zeolite-like Material显示文摘 | Cheng Hsing | 1995 | Environ Sci Technol1995，29，： | 1 |
| 20 | Deactivation ofthe Pd-La/spinel catalyst for the preparation of 2, 6-diisopropylaniline 显示文摘 | JIANG Ruixia XIE Zaiku ZHANG Chengfang | 2002 | Catalysis inApplication2002，98，3： | 1 |
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