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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 | 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 |
| 6 | 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 |
| 7 | 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 |
| 8 | 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 |
| 9 | 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 |
| 10 | 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 |
| 11 | Words in Pairs Neural Networks for Text Classification显示文摘Existing methods utilized single words as text features.Some words contain multiple meanings,and it is difficult to distinguish its specific classification according to a single word,which probably affects the accuracy of the text classification.Propose a framework based on Words in pairs neural networks(WPNN)for text classification.Words in pairs include all single word combinations which have a high mutual association.Mine the crucial explicit and implicit Words in pairs as text features.These words in pairs as a text feature are easily classified.The words in pairs are utilized as the input of the neural network,which provides a better classification ability to the model,because they are more recognizable than the single word.Experimental results show that our model outperforms five benchmark algorithms. | WU Yujia LI Jing SONG Chengfang CHANG Jun | 2020 | Chinese Journal of Electronics2020，29，3： | 1 |
| 12 | Studying on the steady-state and time-resolved fluorescence characteris- tics of melamine显示文摘 | Yang Chengfang Liu Ying Li Lei | 2010 | Spectrochimica Acta Part A2010，75，： | 1 |
| 13 | Research and development of CNC cool frame hender显示文摘 | LI Peiyong WANG Chengfang MAO Yunsheng | 2008 | Journal of Ship Production2008，，1： | 1 |
| 14 | Protective effect of erythropoietin on β-amyloid-induced PC12 cell death through antioxidant mechanisms显示文摘 | Gang Li Rong Ma Chengfang Huang Qiang Tang Qin Fu Hui Liu Benrong Hu Jizhou Xiang | 2008 | Neuroscience Letters2008，，2： | 1 |
| 15 | Detecting and tracking dim moving point target in IR image sequence显示文摘 | Zhang Fei Li Chengfang Shi Li | | 0，，46： | 1 |
| 16 | Dynamic Fracture Analysis of Functionally Gradient Materials with Two Cracks By Peridynamic Modeling显示文摘In the research,the dynamic fracture failure problem of functionally graded materials(FGMs)containing two pre-cracks was analyzed using a bond-based Peridynamic(PD)method numerical model.The two convergence of decreasing the area of PD horizon(δ-convergence)and uniform mesh refinement(m-convergence)were studied.The effects of both crack position and distance between two cracks on crack propagation pattern in FGMs plate under tensile loads are studied.Furthermore,the effects of different gradient patterns on the dynamic propagation of cracks in FGMs are also investigated.The simulate results suggest that the cracks positions and the distance between them can significantly influence the dynamic propagation of crack in FGMs.Gradient mode also has a certain effect on crack propagation,but the effect of specific gradient variation patterns on dynamic propagation of crack is finite. | Zhanqi Cheng Dongdong Jin Chengfang Yuan Le Li | 2019 | Computer Modeling in Engineering & Sciences2019，，11： | 1 |
| 17 | Strengths and flexural strain of CRC specimens at low temperature 显示文摘 | Yang Linhu Han Zhu Li Chengfang | 2011 | Constr Build Mater2011，，2： | 1 |
| 18 | White Electroluminescence with Simultaneous Three-Color Emission from a Four-Armed Star-Shaped Single-Polymer System显示文摘有4,7二度的一个四手臂的塑造星的单个聚合物的系统(5-(4-( 9H-carbazol-9-yl )苯基) -4-hexylthiophen-2-yl)benzo[c][1,2,5]thiadiazole ( FTBT )作为一个红放射性的核心, polyfluorene ( PF )作为绿放射性的掺杂物作为蓝放射性的手臂和 1,3-benzo thiadiazole ( BT )被设计并且综合,在里面哪个红,绿,并且蓝色(红绿蓝)排放平衡能被小心地调整 FTBT 和 BT 的做的集中完成。一台典型 single-emissive-layer 设备(ITO/PEDOT : PSS/polymer/TPBI/LiF/Al ) 被学习并且讨论,与 1.59 cd·A −1 和 CIE 的发光效率(LE ) 认识到纯、稳定的白排出物协调(0.31, 0.34 ) 。设备的 high-color-quality 白人 electroluminescence 能主要从蓝 PF 手臂被归因于压制的分子间的相互作用,和部分精力转移到红、绿的掺杂物。 | Yuanda Jiu Jianyun Wang Chengfang Liu Wenyong Lai Lingling Zhao Xiangchun Li Yi Jiang Weidong Xu Xinwen Zhang Wei Huang | 2015 | Chinese Journal of Chemistry2015，33，8： | 1 |
| 19 | A novel High Performance Insulated Gate Bipolar Transistor显示文摘 | Zhang Fei Shi Lina Li Chengfang | 2006 | Solid-State Electronics2006，50，78： | 1 |
| 20 | Feminization of Agriculture in China? Debunking Myths Surrounding Women's Participation in Farming, China Quarterly 显示文摘 | Alan de Brauw Qiang Li Chengfang Liu Scott Rozelle Linxiu Zhang | 2008 | (194): 327-3482008，，194： | 1 |
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