POPULATION MOVEMENTS AND THE ENVIRONMENTAL POTENTIAL POPULATION IN CHINA

This paper inquires firstly into the influence of environmental potential population on population movements in China. We think that there are intimate relationships between the changes of the environmental potential population and the population movements: from southeast to northwest, from the coastland to the borderland in the early 30 years of the founding of the People’s Republic of China and the reversion of direction of population movements in recent ten years. Then we come to the conclusion that it has been inappropriate for a large-scale population movement of reclaiming and cultivating wasteland, because the actual population has universally surpassed the environmental potential population in most areas of China. But it is still appropriate and necessary for these movements, such as intelligence or science migration of population, limited population movement within the area of some provinces, population concentration on small towns and temporary fluidity of population.

Population Quality-based Demographic Dividend,Industrial Transformation and Sustainable Development of the Chinese Economy and Society

China is faced with a decreasing labor supply and therefore is losing its cost advantage.However,benefiting from continuous improvement of population quality,China's population quality-based demographic dividend begins to replace the quantity-based dividend to play a dominant role in economic development.Thus,in supply-side structure,rather than essential factors,it paves the way for the sustainable development of the Chinese economy.With the addition of the successful industrial transformation and upgrading,China still has the advantage to overcome the middle income trap and maintain the momentum of economic growth.

HPV/HBV or HPV/HCV Co-Infections in Women Treated for Chronic Hepatitis at Hôpital Saint Camille in Ouagadougou, Burkina Faso

Introduction: Cervical cancer is a public health concern and is mainly caused by Human papillomaviruses (HPV). In many parts of the world, studies are being carried out to understand the different genotypes to better tackle this issue. We conducted a study to determine the prevalence of HPV genotypes in women with chronic hepatitis B or C infection, co-infected or not with HIV, treated at the Hôpital Saint Camille in Ouagadougou (Burkina Faso). Methods: This study was conducted from April to July 2023, including 100 women in gastroenterology at Hôpital Saint Camille. A questionnaire on their socio-demographic and life style was administrated;and endocervical samples were collected using sterile swabs and then sent to Centre of Biomolecular Research Pietro Annigoni (CERBA). HPV molecular detection and genotyping were performed by PCR and hybridization using the HPV Direct Flow Chips kit. Data were analysis using chi square test or Fischer’s exact test with a significance threshold for p Results: The prevalence of HPV infection was 28% (28/100) on the sample of women tested. The most frequent genotypes were HPV 52 (8.33%), followed by HPV 18 and 68 (6.25% each) for high-risk HPVs, and HPV 6, 44/55 and 62/81 (8.33% each) for low-risk HPVs. Conclusion: This study, the first of its kind in Burkina Faso on this group of the population, reveals that the most frequent genotypes found in this study are not included in the vaccine available in Burkina Faso (Gardasil®4).

Hierarchical Linear Model Approach to the Determinants of Activities of Daily Living of Chinese Oldest Old at Both Individual and Regional levels

Based on the Chinese longitudinal healthy longevity survey conducted in 2002, this paper uses hierarchical linear model (HLM) to make an approach to the possible determinants of activities of daily living (ADL) of Chinese oldest old (aged 80 and above) by combining both individual and provincial level factors. The descriptive analysis shows that there is a great differ- ential in ADL by province among Chinese oldest old. The findings turn out that there does exist a significant differential in ADL between oldest old and young old, and that there is also a great differential in ADL by province among Chinese oldest old. The HLM demonstrates that comorbidity, age, cognitive impairment, visual impairment, and emotion could be the most important indi- vidual factors while natural environment, medical facilities, type of staple food and poverty rate in urban areas are the most sig- nificantly regional determinants of ADL of oldest old. The find- ings imply that future actions should not only be taken at individ- ual level, but also at regional level in order to achieve the goal of a healthy aging society in China.

Study on the Labor Resources Distribution and Optimizing Configuration

This thesis analyzes the change of labor resources distribution in the whole country and the effect of financial crisis on the labor force by use of employment population size,investment scale and the relevant data of GDP scale from different provinces in China.The optimal investment model of labor force is built according to the Marginal Product Elasticity Theory to estimate the quantity of surplus labor force in provinces and cities in China.It also analyzes the effect of investment on the labor force migration according to Capital-Labor Force Flow Model of Thomas B.The study shows that there is no shortage of labor resources in our country;the labor resources distribution in eastern regions is close to the optimization;the largescale surplus labor force still exist in central and western regions;western regions will become the regions with the largest number of surplus labor resources instead of central regions.

The Analysis of the Employment Status of China' s labor Force and Its Variations

With the aging of population,the academic researches tend to focus on the size,structure,quality of the labor forces.This article,based on the data of 2012 CLDS,describes demographically the employment status of China’s labor force by fourtypes:employee,employer,selfemployed and farming and analyzesthe variations in the indicators of the 4 types employment status,such a shuman capital,working hours,worksites,in come,social security,job evaluation and work values and identity of social class,etc.Understanding these variations is a great significance to the proper labor policy-making.

The Association between Waterpipe Smoking and Metabolic Syndrome: A Cross-Sectional Study of the Bushehr Elderly Health Program

Waterpipe(WP),a less common method of tobacco smoking than cigarette smoking(CS),has become increasingly popular over the last decade.Contrary to popular belief,WP smoking is far from harmless and has multiple health risks similar to,or even exceeding,those seen in CS[1,2].

Dynamic Analysis on Population Suburbanization and New Town Development in Shanghai

This paper studies the suburbanization process of Shanghai from 2000 to 2010 and the population aggregation of its five suburban new towns including Jiading,Songjiang,Qingpu,Nanqiao,and Lingang.It finds that Shanghai's population distribution pattern is featured by both continuity and variety.In detail,although Shanghai is still dominated by a single-centered expansion pattern,a multi-centered spatial pattern is gradually formed with a narrowing gap in population density between the central city and the suburbs.As the suburbanization of the migrant population is faster than that of the registered population and migrants re-gather in the central city as a result of its service industry development,there is a relatively smaller migrant population in the area between the Inner Ring Road and the Outer Ring Road.Consequently,the population in the new towns that the city planning strategy has focused on is not increasing at the expected speed,thus more attention should be paid to a reasonable central citycentered,multi-leveled,towns-grouped,and compact urban spatial structure.

Average life expectancy of the Chinese population in 1949-2019: trends, contributors and prospects

This paper provided an overview of literature on life expectancy of Chinese popu-lation,elaborated the characteristics of the significant increase in the average life expectancy(ALE)of Chinese population over the past 70 years since the founding of PRC,analyzed the major factors contributing to the improvement in the ALE,and highlight the needs to put greater emphasize to increase average healthy life expectancy(AHLE),to narrow the regional differences in AHLE,to advocate and promote healthy lifestyles,and to prevent and control pollution persistently and effectively.

Population geography in China since the 1980s： Forging the links between population studies and human geography

This paper reviews the progress of population geography in China since the 1980 s. The review results suggest that contrary to the common perception of its invisibility and marginalized status in the field, tremendous progress has been made in population geography in China since the 1980 s. Population geographers have made significant contribution to the understanding of a wide range of population issues from geographical perspectives, including migration, urbanization, population distribution, the relationships between population, environment and resources, aging, marriage patterns, and migrants＇ crimes, although such contribution often did not appear in the geographical circle. Furthermore, population geographers have played an indispensable role in revitalizing population studies in China and forging its links to human geography, occupying an important position in this multi-disciplinary field. Population geographers＇ contribution to the areas of migration and urbanization research has been particularly significant, reflected in their leading roles in these areas＇ research. The paper demonstrates that as latecomers in the field after more than 20 years of isolation, population geographers in China have gone through a process of catching up and increasing engagement with developments in social sciences and increasing interaction with social scientists since the 1980 s, and have benefited greatly from it; however, there is a tendency for population geography to be increasingly alienated from the main stream human geography, a phenomenon similar to but not exactly the same as Anglo-American geography in the late 1990 s and early 2000 s. The paper argues that population geography is only half way in the course to forge the links between population studies and human geography, and it needs to return to geographical sciences to strike a healthy balance between the field of population studies and that of human geography, and promote its further development in a multi-disciplinary field.

CIECIA:A new climate change integrated assessment model and its assessments of global carbon abatement schemes

From the perspective of global economic general equilibrium, this study developed a new climate change IAM named CIECIA. The economic core of this IAM is a multi-country-sector general equilibrium model. The endogenous technology progress mode is introduced into CIECIA. Based on this model, three assessment principles of the global cooperating abatement scheme are proposed, including effectiveness, feasibility, and fairness. This study simulated and analyzed six types of primary global cooperating abatement schemes. The simulated results indicate that all of the selected schemes can satisfy the climate mitigation targets by 2100. Thus, they are all effective schemes. However, the schemes have quite different feasibilities and fairness. The Stern Scheme benefits the developed countries, but is unfair to the developing countries. The Nordhaus Scheme promotes the developments of the developing countries. However, it leads to negative impacts on the interests of the developed countries. The principle of convergence on accumulated carbon emissions per capita and the principle of convergence on carbon emissions per capita benefit the economic developments of the middle and low developing countries most. However, these two types of schemes cause tremendous losses to the main economic entities in the world including China. The Pareto Improvement Scheme, which was developed from the Global Economic Growth Scheme, balances the fairness and feasibility in the carbon abatement process and realizes the Pareto improvement of accumulated utilities in all the participating countries. Thus, the Pareto Improvement Scheme is the most reasonable global cooperating carbon abatement scheme.

冠心病的药物治疗、经皮冠状动脉介入术和冠状动脉旁路移植术？三种方法应互为补充而非互相竞争

过去十年，随着他汀类药物、有效的降压药（特别是血管紧张素转换酶抑制剂，ACEI）、钙拮抗剂和抗血小板药物的使用，冠心病的药物治疗疗效已经有了改善。此外，经皮冠状动脉介入术（PCI，包括直接PCI和补救性PCI）的进步已使急性心肌梗死。

End of the First Demographic Dividend and Possible Labor Market Response in China and Other Asian Countries(Regions)

This paper sheds light on the nexus of age compositional shifts and the generation of the first demographic dividend over the past several decades in China, and also discusses how this dividend could be extended. We first estimate how long China ＇s first demographic dividend will last and then compare the computed results for China with those for other selected Asian countries in order to place the Chinese case in a wider perspective. Furthermore, in view of the possibility that China ＇s first demographic dividend will turn negative in 2014, we offer insight into how and to what extent China ＂s labor market needs to adjust and how much labor income must increase for the first demographic dividend to remain positive up to year 2050. For this goal to be achieved, the labor income age profile needs to be shifted to a considerable extent. We conduct an exercise in which the 2007peak labor income age of 32 years is shifted to 40years. In the case of the elderly, this implies an annual labor income growth of 3.1 percent over the period of 39 years. Throughout this paper, we draw on a variety of computed results derived from the Chinese component of the global ＂National Transfer Accounts＂ project.

中国研究机构发表经济学英文论文的一个统计研究(1998—2007)

本文对中国内地和港澳地区的经济学研究机构在1998--2007年发表在SSCI经济学杂志的英文论文数量和质量进行了排名。机构排名的前5名是香港科技大学、香港中文大学、香港大学、北京大学和香港城市大学，结果具有很强的稳定性，与世界上现有的其他排名也很吻合。过去10年间的发表记录的变化表明，内地在发表高质量的英文经济学论文的能力在不断地提高。在发表论文的质量方面，香港科技大学、武汉大学、厦门大学、香港中文大学和清华大学排名前5位。 本研究发现北京大学、清华大学、中科院和社科院还是内地在国际上发表高质量英文论文的主力，但是武汉大学和厦门大学等机构也在不断提高自己的英文论文发表能力。 本研究提供的方法，也可以扩展到本文没有包括的中文经济学文献的排名中去。

Dynamics of family households and elderly living arrangements in China,1990-2010

This article presents analyses on dynamics of family households and elderly living arrangements in China mainly based on the micro data of 2010,2000 and 1990 censuses.We demonstrate and discuss the trends and rural-urban differentials of largely declined household size,quickly increasing one-person and one-couple-only households,substantially increased proportions of elderly living alone or with spouse only.It is strikingly interesting that proportion of three-generation family households increased by 18.9%in rural area but decreased by 23.7%in urban areas in 2010 compared to 1990,due to rural-urban differences in demographic effects of large fertility decline and socioeconomic/attitude changes.We also present and discuss two interesting demographic phenomenon which were relatively overlooked in the literature.First,increase in number of households is much larger than population growth,due to shrinking of the household size and decomposition of larger families into smaller ones,and very much slowed-down population growth.Second,increases in numbers of elderly(especially oldest-old)who live alone or with spouse only are dramatically larger than the increase in the corresponding proportions,due to the effects of rapid population aging,while later and larger birth cohorts become old.Such trends have important implications for the analyses on the current and future market demands of the products and services,of which households are the consumption units.We recommend that the studies on home-based energy use and sustainable development should be based on analyses of family household dynamics rather than population growth.

Planning Method of Non-Development Zone in Southern Jiangyin

Jiangyin was the earliest to conduct Non-development zone planning and has attracted the attention of people all over China because it is regarded as the Chinese version of Smart Growth. The planning process is as follows. Based on SPOT and TM satellite remote sensing images develop a regional land use map with high precision using artificial interpretation methods. Then, according to the relationship between anti-development suitability and disasters, agriculture, ecology, built-up area distribution and other geographical factors, generate a comprehensive evaluation chart of anti-development suitability using GIS analysis, such as buffer analysis and overlay analysis. Later, with a regional land use map and anti-development suitability evaluation chart, using the principle of ecological security network and learning from the management experience of nature reserves, draw the scope of Non-development zone and core area. Last, put forward a series of protective measures for the above Non-development zone, that is only allowed to develop agriculture and tourism, strictly restricted industrial projects and urban real estate activities, and all existing industrial factories must be moved to planned industrial parks. This is good practice whereby local governments keep land resources for future generations and more advanced than an urban expansion strategy. This method is very useful for promoting land use layout optimization in Southern Jiangsu Developed Areas.

Impact of dyslipidemia on estimated glomerular filtration rate in apparently healthy children and adolescents:the CASPIAN-V study

Background Chronic kidney disease(CKD)is a leading risk factor for development of cardiovascular disease(CVD).Dyslipidemia is also known as risk factor for CVD development.However,the association of dyslipidemia with glomerular injury among healthy children and adolescents remains controversial.We aimed to investigate the relationship between estimated glomerular filtration rate(eGFR)and lipid profile risk factors among healthy children and adolescents.Methods In this nationwide survey,3808 participants(1992 males,1816 females),aged 7-18 years,were selected by cluster random sampling method from 30 provinces in Iran.Body mass index(BMI)and systolic and diastolic blood pressures were measured.Blood samples were obtained for serum creatinine,fasting blood glucose,total cholesterol(TC),high-density lipoprotein cholesterol(HDL-C),low-density lipoprotein cholesterol(LDL-C),and triglyceride(TG)determinations.GFR was estimated using Schwartz equation.Results Girls had higher eGFR than boys(P=0.04).In a multiple regression analysis,eGFR demonstrated a positive correlation with systolic blood pressure,BMI,fasting glucose,TC,HDL-C,and TG.By the analysis of covariance,TC,HDL-C,and TG showed a negative correlation with eGFR after adjustments for BMI,systolic and diastolic blood pressures,and fasting glucose(OR=0.56,95%CI=0.29-0.89).Conclusion The study showed that dyslipidemia is associated with reduced eGFR among the healthy children and adolescents.

Subjective well-being and mortality among the older people in China

The present study investigates the effects of subjective well-being(SWB)on mortality risk using a large sample from the Chinese Longitudinal Healthy Longevity Study conducted in 1998,2000,2002,2005,2008,2011 and 2014.SWB is measured by life satisfaction,positive affect and negative affect.We found that positive affect,negative affect,life satisfaction and the change of life satisfaction significantly have predicted mortality risks of the older people with control of social demographic characteristics,physical health,social support,cognitive ability,and social participation.The higher the positive affect,the lower the negative affect,the improvement the life satisfaction,the lower the mortality risk.Marital status plays a decisive role in the influence of life satisfaction on the mortality risk.The married persons have lower mortality risk even if they rate their life bad.In further analyses,we found that the effects of SWB on mortality risk were underestimated in short-term study compared with those in long-term study.SWB is essentially a time-dependent variable and changes with age,so treating SWB as time-independent variable underestimated its impact on mortality risk.

Socioeconomic inequality in screen time frequency in children and adolescents: the weight disorders survey of the CASPIAN IV study

Background This study aimed to assess the socioeconomic inequality and determinants of screen time (ST) frequency in Iranian children and adolescents. Methods This nationwide study was conducted as part of a national school-based surveillance program among 36,486 students consisting of 50.79% boys and 74.23% urban inhabitants, aged 6–18 years, living in urban and rural areas of 30 provinces of Iran. Socioeconomic inequality in ST, including the time spent for ST, watching TV and leisure-time work-ing with computer, was assessed across quintiles of SES using concentration index (C) and slope index of inequality (SII). Results Overall, 36,486 students completed the study (response rate 91.25%). Their mean (SD) age was 12.14 (3.36) years. The national estimation of frequency of ST was 31.66% (95% CI 31.16–32.17) with ascending change from 20.80% (95% CI 19.81–21.82) to 36.66% (95% CI 35.47–37.87) from the first to the last quintal of SES. EstimatedC value at national level was positive (0.08), which indicate inequality was in favor of low SES groups. Considering the SII values, at national level [? 0.16 (? 0.39, 0.06)], the absolute difference in ST frequency between the bottom and top of the socioeconomic groups had descending trends. In multivariate logistic regression model, family history of obesity, generalized obesity and age were the main significant determinants of prolonged ST, watching TV, and computer working (P < 0.001). Conclusions Socioeconomic inequality in ST frequency was in favor of low SES groups. These findings are useful for health policies, better programming and future complementary analyses.