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Tourism as a nontradable sector affects regional price indexes. However, the effect of tourism on urban housing prices has not been sufficiently studied. This study uses panel data for prefecture-level cities in China to empirically examine the effect of tourism development on urban housing prices. The findings indicate that tourism development can increase urban housing prices, and the effect mainly comes from domestic tourism. This conclusion is not only derived from the instrumental variable method considering endogenous problems but also verified by multiple robust methods including quantile regression. Meanwhile, the study innovatively identifies the mediating role of investment effect, income effect, and public service effect in the impact of tourism on urban housing prices. It further shows the heterogeneity of cities, with more significant effect of tourism on urban housing price in small- and medium-sized cities, noncentral cities, central and western cities, and nontourist cities. This study reveals the commonality and particularity of the impact of tourism development on urban housing price. It not only enriches the research on tourism economics from the perspectives of the relationship between tourism and real estate but also further enriches the relevant conclusions and theoretical mechanism of the impact of tourism on housing prices. [ABSTRACT FROM AUTHOR]

RED (Xiaohongshu) is one of the most popular social media platforms in China. Through the act of sharing different lifestyles on this platform, young women users create and follow fashion trends that not only speak for their beauty aesthetics, but, more importantly, reveals their complex femininities. This article examines Chinese young femininities represented on RED, aiming to explore the complex interplay of social and cultural powers in the production of female subjectivities in the post-socialist context. With this point of departure, positioning RED as a culture genre to be analysed, the discussion focuses on two major female representations on this platform: "BM girls" and "Uniqlo-Sanrio girls." Drawing on Foucault's theory of "body as a site of power," this article investigates how Chinese young women, positioned among multiple competing discourses, have been framed as the "docile body" through the collective pursuit of "pale, young, and slim" in post-socialist China. [ABSTRACT FROM AUTHOR]

Background: China has one third of the worldwide indigenous pig breeds. The Henan province is one of the earliest pig domestication centers of China (about 8000 years ago). However, the precise genetic characteristics of the Henan local pig breeds are still obscure. To understand the origin and the effects of selection on these breeds, we performed various analyses on lineage composition, genetic structure, and detection of selection sweeps and introgression in three of these breeds (Queshan, Nanyang and Huainan) using genotyping data on 125 Queshan, 75 Nanyang, 16 Huainan pigs and 878 individuals from 43 Eurasian pig breeds. Results: We found no clear evidence of ancestral domestic pig DNA lineage in the Henan local breeds, which have an extremely complicated genetic background. Not only do they share genes with some northern Chinese pig breeds, such as Erhualian, Hetaodaer, and Laiwu, but they also have a high admixture of genes from foreign pig breeds (33–40%). Two striking selection sweeps in small regions of chromosomes 2 and 14 common to the Queshan and Nanyang breeds were identified. The most significant enrichment was for lipid kinase activity (GO:0043550) with the genes FII, AMBRA1, and PIK3IP1. Another interesting 636.35-kb region on chromosome 14 contained a cluster of spermatogenesis genes (OSBP2, GAL3ST1, PLA2G3, LIMK2, and PATZ1), a bisexual sterility gene MORC2, and a fat deposition gene SELENOM. Reproduction and growth genes LRP4, FII, and ARHGAP1 were present in a 238.05-kb region on SSC2 under selection. We also identified five loci associated with body length (P = 0.004) on chromosomes 1 and 12 that were introgressed from foreign pig breeds into the Henan breeds. In addition, the Chinese indigenous pig breeds fell into four main types instead of the previously reported six, among which the Eastern type could be divided into two subgroups. Conclusions: Admixture of North China, East China and foreign pigs contributed to high genetic diversity of Henan local pigs. Ontology terms associated with lipid kinase activity and spermatogenesis and growth shaping by introgression of European genes in Henan pigs were identified through selective sweep analyses. [ABSTRACT FROM AUTHOR]

Simple Summary: With the improvement of living standards, people have higher requirements for pork quality. Intramuscular fat is among the important factors that determine the quality of pork, affecting the taste and flavor. Producing quality meat with high intramuscular fat content has been a major challenge for China's livestock industry. In addition, m6A modification is abundant in many circRNAs, and m6A-circRNAs play an important regulatory role in a variety of biological processes. In this study, a total of 12 putative m6A-circRNAs were identified, their potential molecular regulatory mechanisms on fat deposition and meat quality in Chinese and Western pigs were explored through a series of bioinformatics analyses, which laid a foundation for further elucidations of the functions of m6A-circRNAs in fat deposition and growth and development of pigs. It is well known that N6-methyladenosine (m6A) is the most abundant modification in linear RNA molecules, but many circRNA molecules have now been found to have a wide range of m6A modification sites as well. However, there are few relevant studies and information on the expression profile and functional regulatory properties of m6A-modified circRNAs (m6A-circRNAs) in longissimus dorsi. In this study, a total of 12 putative m6A-circRNAs were identified and characterized in the longissimus dorsi of Queshan Black and Large White pigs—8 of them were significantly more expressed in the longissimus dorsi of Queshan Black than in Large White pigs, while the other 4 were the opposite. These 12 putative m6A-circRNAs were also found to act as miRNA sponge molecules to regulate fat deposition by constructing the ceRNA regulatory network. Enrichment analysis also revealed that the 12 m6A-circRNAs parent genes and their adsorbed miRNA target genes were widely involved in fat deposition and cell proliferation and differentiation-related pathways, such as the HIF-1 signaling pathway, the pentose phosphate pathway, the MAPK signaling pathway, the glycosphingolipid biosynthesis-lacto and neolacto series, and the TNF signaling pathway, suggesting that the analyzed m6A-circRNAs may be largely involved in the formation of pork quality. These results provide new information to study the regulatory properties of m6A-circRNAs in the formation of pork quality. [ABSTRACT FROM AUTHOR]

Expansion energy is the main factor of coal and gas outbursts, and the gas desorption around the outburst hole is developed in variable pressure conditions. While studying the impact of moisture on gas desorption characteristics, atmospheric pressure desorption is usually used, but its characteristics under variable pressure conditions have not been thoroughly investigated. In this study, typical outburst coal samples with different water contents from the Jincheng mining area of China were selected as research objects, and the effects of water on gas displacement, desorption, desorption rate, and gas desorption index (K1) of drilling cuttings under step-by-step depressurization were analyzed by means of stepwise depressurization and atmospheric desorption experiments. The research conclusions suggest that (1) the amount of gas replacement, which augments rapidly during the inception, increases with the growth of water content under the experimental conditions, and then the rate decreases; (2) the gas desorption falls gradually at different depressurization stages when the humidity is constant, while the total desorption and the drop amplitude taper with the increasing water content; (3) the additional water enhances the desorption rate significantly only at the initial stage, but scarcely has an impact later on; and (4) the value of the drilling cuttings' gas desorption index (K1) shows a downward trend with the developing humidity in each stage of stepwise depressurization desorption. We take humidity as a variable to simulate the desorption process of coal gas around the hole when coal and gas outbursts occur in the laboratory and study the influence of water on the desorption characteristics under desorption conditions of stepwise depressurization. This provides a reference for the purpose of studying the mechanism of coal and gas outbursts from the perspective of energy. [ABSTRACT FROM AUTHOR]

Simple Summary: Whole-genome SNP data from 613 Chinese indigenous pigs were collected to comprehensively estimate the genetic diversity, genetic relationship, and population genetic structure of the indigenous pig meta-populations. These Chinese meta-populations were characterized by genetic distance, genetic difference index, and runs of homozygosity (ROH). The contribution of genetic diversity of each meta-population was scaled based on genetic and allelic diversity, which provides a basis for improving the conservation project. Further, a selective sweep analysis revealed that genes related to fat deposition and heat stress may contribute to the adaptability of the indigenous pigs to cold and heat. These findings provide a theoretical basis for the improvement of conservation strategies and insights into the environmental adaptability of Chinese indigenous pigs. The diversification of indigenous pig breeds in China has resulted from multiple climate, topographic, and human cultural influences. The numerous indigenous pig breeds can be geographically divided into six meta-populations; however, their genetic relationships, contributions to genetic diversity, and genetic signatures remain unclear. Whole-genome SNP data for 613 indigenous pigs from the six Chinese meta-populations were obtained and analyzed. Population genetic analyses confirmed significant genetic differentiation and a moderate mixture among the Chinese indigenous pig meta-populations. The North China (NC) meta-population had the largest contribution to genetic and allelic diversity. Evidence from selective sweep signatures revealed that genes related to fat deposition and heat stress response (EPAS1, NFE2L2, VPS13A, SPRY1, PLA2G4A, and UBE3D) were potentially involved in adaptations to cold and heat. These findings from population genetic analyses provide a better understanding of indigenous pig characteristics in different environments and a theoretical basis for future work on the conservation and breeding of Chinese indigenous pigs. [ABSTRACT FROM AUTHOR]

Residents' willingness to cooperate can contribute to the success of urban regeneration projects worldwide. However, limited research has explored factors determining residents' willingness to cooperate with neighborhood regeneration projects. This study aims to investigate the influence of psychological factors on urban residents' willingness to comply with neighborhood regeneration projects. To achieve this goal, the study extends the theory of planned behavior by specifying the effects of perceived benefit, perceived risk, and perceived fairness on residents' compliance intention toward neighborhood regeneration projects. Data from 362 local residents (i.e., homeowners) in China were analyzed using partial least squares structural equation modeling. Results show that perceived benefit, perceived risk, and perceived fairness have significant effects on the attitude, subjective norm, and perceived behavioral control, which in turn enhance residents' compliance intention toward neighborhood regeneration projects. In addition, perceived benefit and perceived fairness also exhibit direct positive effects on residents' compliance intention. This study develops an enriched model to examine the forming mechanisms of residents' compliance intention under the context of neighborhood regeneration. It also provides more insights to enhance the decision-making regarding strategies of urban regeneration toward better social sustainability. Specifically, measures should be implemented to increase residents' subjective norm, perceived behavioral control, and benefit perception. It is also recommended to foster a favorable attitude and to facilitate fairness perceptions of residents. [ABSTRACT FROM AUTHOR]

Chalcopyrite II-IV-V2 semiconductors are promising materials in nonlinear optical, optoelectronic, and photovoltaic applications. In this work, pressure-tailored optical properties as well as pressure-driven emergent superconductivity in chalcopyrite ZnSiP2 are reported via photoluminescence (PL) spectroscopy and electrical transport experiments. During compression, the PL peak energy exhibits a plateau between 1.4 and 8.7 GPa, which is accompanied by a piezochromic transition and correlated with the progressive development of cation disorder. Upon further compression across a phase transition from tetragonal to cubic rock-salt structure, superconductivity with a critical temperature Tc ~ 8.2 K emerges immediately. Tc decreases in the range of 24.6–37.1 GPa but inversely increases at higher pressures, thereby exhibiting an unusual V-shaped superconducting phase diagram. These findings present vivid structure–property relationships, which not only offer important clues to optimize the optical and electronic properties, but also provide a new way to use compression to switch between different functionalities. Semiconductors: Applying pressure for improved optics A semiconductor that is compatible with silicon but has better optical properties has been fully characterized by researchers in China. Silicon is perhaps the best-known example of a semiconductor but is not good at emitting light. Scientists continue to identify and characterize alternatives that might be better suited for specific applications. Yifang Yuan from the High Magnetic Field Laboratory in Hefei and co-workers have investigated in detail the properties of semiconducting zinc-silicon-phosphorus. ZnSiP2 is a member of a class of materials known as chalcopyrites and is compatible with and can be grown on silicon but is better at generating light. The team studied how external pressure affects the semiconductor's structural, optical and electronic properties. They showed that at a sufficiently high pressure, the semiconductor exhibits superconducting behavior. Pressure engineered optical properties as well as presssure induced emergent superconductivity are revealed in II-IV-V2 semiconductor ZnSiP2, which demonstrate vivid structure–property relationships. Especially, along with a structural phase transition from tetragonal to cubic phase under compression, ZnSiP2 evolves from a photovoltaic semiconductor into a superconductor. [ABSTRACT FROM AUTHOR]

With the growth of economic globalization and international tourism, tourism outward foreign direct investment (OFDI) has become a significant phenomenon in the development of the tourism industry. This article aims to estimate how emigration affects OFDI in tourism. It develops the theoretical framework of the effects of emigration on tourism OFDI, including the outbound tourism effect, the economic effect, the cultural effect, and the social effect. The empirical evidence in China reveals a significant effect of Chinese emigration on China's tourism OFDI. However, this positive effect is found to decrease over time. This study also suggests that the level of development in the destination country, cultural distance, and geographical distance determine the size of this positive effect. Lastly, it was found that Chinese emigration has also had a positive effect on China's OFDI in tourism to developed economies and neighboring economies. [ABSTRACT FROM AUTHOR]

Outward foreign direct investment (FDI) from emerging economies has dramatically increased in the tourism industry. Based on the assumption of spillover effects of FDI, this article examines the impact of inward FDI on tourism-based outward FDI. This study applies the negative binomial model to panel data from 2001 to 2015 in China and reveals that FDI inflows and tourism-based FDI inflows are important drivers of China's tourism-based outward FDI. Furthermore, it is found that the level of regional development has a moderating effect on these flows. [ABSTRACT FROM AUTHOR]

This study investigates the factors that influence China's outward foreign direct investment (OFDI) in tourism. Employing a panel dataset involving 21 host countries for 10 years (2004–2013), negative binomial regression modelling showed that Chinese outbound investment in tourism is, at least in part, determined by volume of tourism flows to host country, the scale of tourism in that country and the openness to inbound investment. Other variables such as trade relationships between donor and recipient country and measures of innovation were seemingly of little importance. The study indicates a divergence of Chinese firms' OFDI in tourism from its general OFDI country choice pattern and confirms that sector-specific factors may be playing a more significant part in China's OFDI in tourism. [ABSTRACT FROM AUTHOR]

Members of avian leukosis virus subgroup J (ALV-J) cause various diseases associated with tumor formation and decreased fertility, resulting in major economic losses in the poultry industry worldwide. To assess the status of ALV-J infection in meat-type chickens in southern China, the molecular epidemiology of ALV-J strains was investigated. A total of 265 clinical samples collected from southern China from 2013 to 2014 were investigated in this study for the presence of ALV-J, which resulted in 12 virus isolates. Phylogenetic analysis showed that 91.7 % (11/12) of the ALV-J isolates have possessed high homology to Chinese layer isolates and belong to one subgroup. One of the ALV isolates (designated GD1411-1) was relatively closely related to the ALV-J broiler isolates, indicating that the GD1411-1 isolate might be a transition strain. Several unique nucleotide substitutions in gp85 and the U3 region were detected in all 12 ALV-J isolates. This study provides some interesting information on the molecular characterization of ALV-J isolates. These findings will be beneficial for understanding of the pathogenic mechanism of ALV-J infection. [ABSTRACT FROM AUTHOR]

Avian leukosis virus (ALV) causes high mortality associated with tumor formation and decreased fertility, and results in major economic losses in the poultry industry worldwide. Recently, a putative novel ALV subgroup virus named ALV-K was observed in Chinese local chickens. In this study, a novel ALV strain named GD14LZ was isolated from a Chinese local yellow broiler in 2014. The proviral genome was sequenced and phylogenetically analyzed. The replication ability and pathogenicity of this virus were also evaluated. The complete proviral genome sequence of GD14LZ was 7482 nt in length, with a genetic organization typical of replication-competent type C retroviruses lacking viral oncogenes. Sequence analysis showed that the gag, pol and gp37 genes of GD14LZ have high sequence similarity to those of other ALV strains (A-E subgroups), especially to those of ALV-E. The gp85 gene of the GD14LZ isolate showed a low sequence similarity to those other ALV strains (A-E subgroups) but showed high similarity to strains previously described as ALV-K. Phylogenetic analysis of gp85 also suggested that the GD14LZ isolate was related to ALV-K strains. Further study showed that this isolate replicated more slowly and was less pathogenic than other ALV strains. These results indicate that the GD14LZ isolate belongs to the novel subgroup ALV-K and probably arose by recombination of ALV-K with endogenous viruses with low replication and pathogenicity. This virus might have existed in local Chinese chickens for a long time. [ABSTRACT FROM AUTHOR]

There will exist great pressure for sustaining employment in China when GDP growth is under 8% in the context of the adjustment in economic structure which can cause social instability. How can this outcome be avoided? In a review of the literature, this paper supposes that tourism development is one of the most effective ways for solving the problem of structural unemployment during this period of economic transition. However, most researches pay attention to employment in the formal tourism sector and its pull effects and neglect the informal employment of tourism. In fact, the informal sectors have absorbed a large number of laid-off workers and migrant workers since China's reform and opening - up policies were launched which has been ignored and discriminated against by many Chinese local governments. In order to discover true power of informal sectors, the employment of the tourism informal sector was selected as a representative of the service industry. First, the paper presents many categories of informal employment of tourism showing the evidence of informal employment spreading over most industries. Second, the paper reveals the different tourism multipliers between domestic scholars and WTTC(Word Travel & Tourism Council) reports and explains why the different multipliers come out, pointing out that WTTC underestimates the employment effects of tourism since 2001. Thirdly, based on the above analysis, the paper takes advantage of statistical data and re-estimates the population of informal employment in the nation. Fourthly, using the stable weights of employment in the service industry to total employment, the paper measures and calculates with different methods, the scale of informal employment of tourism and its structural pull effects which demonstrate that the tourism informal sectors supply 20.4 million jobs and its multiplier was 9.98 in 2011. Grounding on the research conclusion, we argue that the pull effects of informal employment of tourism is much bigger than that of indirect employment by domestic scholars and WTTC in terms of sector structure, which suggests that the government should attach much more importance to the informal tourism sector during the period of industrial restructuring in China. At the end of the paper, some suggestions for governments are put forward. [ABSTRACT FROM AUTHOR]

With the expanding trade deficit of Chinese tourism services, more attention is being paid to strengthening the transnational/cross-border business of Chinese tourism enterprises to reduce the negative impacts. Based on a brief analysis and sorting of the development status of the Chinese outbound travel market and tourism transnational/cross-border operations, the paper argues that the transnational/cross-border operation of Chinese tourism enterprises is far from keeping up with the rise of Chinese outbound travel. There is a problem in finding good locations to promote Chinese tourism transnational/cross-border operations and in developing them rapidly and healthily. On the basis of relevant research about the influencing factors when selecting the best locations for servince studies on selecting transnational/cross-border operation locations and few studies on selecting tourism transnational/cross-border business locations. Additionally, the study of transnational/cross-border business service is still mainly concentrated on producer services such as financing, advertising and consulting. Considering the importance and urgency of selecting transnational/cross-border operation locations for Chinese tourism enterprises, the paper analyzes the main potential locations according to market scale and tourism economy competitiveness through integrating Chinese outbound tourism destination distribution data between the years 2008 ~ 2010 from the UN World Tourism Organization (UNWTO) and the tourism competitiveness data of 2011 from the World Economic Forum. It notes that Hong Kong, Korea, Japan, Singapore, Malaysia, Taiwan and France are the preferred locations for tourism enterprise transnational/cross-border investment. Entering into the mature stage of development, tourism enterprise transnational/cross-border operations should carefully consider the overall size of the inbound, outbound and domestic tourism market of the host country and not entirely depend on tourists from the home country. Analyzing tourism GDP data from World Travel & Tourism Council (WTTC) from the period 2006 ~ 2011 and tourism competitiveness data from the World Economic Forum in 2011, the paper argues that the United States, Japan, France and Germany are the preferred locations of travel agency transnational/cross-border investment and the first three countries are the preferred locations of hotel transnational/cross-border investment. Using the latest data of the Hofstede cultural distance report, and purchasing power parity data of GDP between 2002 ~ 2011 from the WTTC and the relevant countries and regions, the paper constructs a foreign direct investment gravity model for tourism, calculating the tourism investment gravity coefficient and the host country investment gravity coefficient of the main potential locations, and analyzing the transnational/cross-border investment potential of Chinese tourism enterprises in the main potential locations. It concludes that Hong Kong, the United States, India and Taiwan are the preferred locations of tourism enterprise transnational/cross-border investment. According to the data of host country investment gravity coefficiency, tourism investment gravity and host country tourism competitiveness, the research undertook K cluster analysis and found that in addition to Hong Kong, the United States, Japan, Korea, Singapore, Malaysia and Thailand are the preferred locations of Chinese tourism enterprise transnational/cross-border operations. With the SPSS scatter diagram and the K cluster analysis, the paper classifies the investment value of the potential investment locations, taking Hong Kong, the United States, Singapore, Japan, Korea, Malaysia and Taiwan as the locus areas of tourism enterprise transnational/cross-border investment. [ABSTRACT FROM AUTHOR]

Primary renal hypouricemia (RHUC) is a rare autosomal recessive disorder with a mean duration of end-stage acute kidney injury (EIAKI) of 14 days. The pathogenesis of EIAKI in patients with RHUC remains unclear. Several hypotheses have been proposed, including those related to the renal vasoconvulsive effect and the elevating effect of xanthine oxidase (XO). The effect of xanthine oxidase (XO) is most often observed following strenuous anaerobic exercise, which is frequently accompanied by low back pain, nausea, and acute kidney injury (AKI). Consequently, we postulate that EIAKI could be prevented by avoiding strenuous exercise, thus preventing the onset and recurrence of EIAKI. In this paper, we present a case of recurrent EIAKI in a patient with RHUC and a mutation in the SLC2A9 gene.

Background: The objective of the present manuscript was to explore the effects of combined application of transcranial magnetic stimulation (TMS) and language training on children with language retardation., Methods: Forty-five children with language retardation were selected as subjects and randomly divided into the treatment group with 24 patients and the control group with 21 patients. The control group was treated with traditional language training, while the treatment group was treated with TMS combined with language training. According to the Gesell pediatric neuropsychological development schedules, the development quotient of children in the two groups were observed and compared before and after two courses of treatment. The evaluation of mouth movement was conducted with Dr. Speech supervised by East China Normal University., Results: Development quotient scores and mouth movement evaluation scores of all Gesell parameters of children in the two groups after treatment were significantly higher than those before treatment (P<0.05). The body movement ability, linguistic competence, development quotient scores, and mouth movement evaluation scores in the treatment group after treatment were higher than those of the control group, and the differences were statistically significant (P<0.05)., Conclusions: The combined application of TMS and language training can effectively improve linguistic competence, action ability, and mouth movement in children with language retardation.

In recent decades, mangrove ecosystems at coastal zone are experiencing rapid land-use conversion, however effects of land use on the heavy metal pollution in mangrove sediments still are not clear. This study investigated the concentration and distribution of heavy metals (including chromium (Cr), zinc (Zn), lead (Pb), copper (Cu), arsenic (As) and cadmium (Cd)) in different mangrove sediments with different land-use patterns along seashore of the whole Hainan island (with the third largest mangrove area of China). The effects of land use on the accumulation of heavy metals in these mangrove sediments are also analyzed. The results showed contaminations of ∑6Metals in this study following the order of arable lands (ARAB) > aquaculture ponds (AQUA) > riverine area (RIVER) > ecological area (ECOL) > construction area (CONS). Accumulation degree of As and Cd were high in the AQUA, ARAB, and RIVER area. As metal hotspots, ARAB, RIVER and AQUA area showed the deteriorated sediment quality with high pollution load index (>1). Redundancy discriminate analysis revealed that mangrove, paddy lands and aquaculture ponds related activities correlated well with the metal pollution. The results clearly revealed that different land uses would not only change the accumulation capacity of mangrove soil for heavy metals, but also contribute different sources of heavy metal pollution. These findings do help to facilitate land-use planning and contribute to guide a better mangrove wetland management at coastal zone., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier B.V. All rights reserved.)

Several haloalkyl organophosphate triester (OPTE) flame retardants have been restricted in some countries due to their potential health risks, but the usage of alternative haloalkyl OPTEs is of concern. In this study, we comprehensively screened for haloalkyl OPTEs in house dust using high-resolution mass spectrometry. Through halogenation-guided nontarget screening, a rare chloroalkyl OPTE, diethylene glycol bis(bis(2-chloroisopropyl)phosphate) (DEGBBCPP), was unequivocally identified (Level 1) in house dust of Beijing, North China. In addition, by screening a suspect list of 61 haloalkyl OPTEs from the EPA's CompTox Chemicals Dashboard, we tentatively identified diethylene glycol bis(bis(2-chloroethyl)phosphate) (DEGBBCEP) and ethylene bis[bis(2-chloroethyl)phosphate] (EBBCEP) (Level 2). DEGBBCPP was detected in all 45 house dust samples, and the median concentration was 98.4 ng/g (13.6-6217 ng/g), that is, approximately one-half that of tris(1,3-dichloro-2-propyl) phosphate, a traditional high-production chloroalkyl OPTE. The detection frequencies of DEGBBCEP and EBBCEP were 96% and 98%, respectively, but at relatively low median concentrations of 10.6 ng/g (from not detected to 152 ng/g) and 3.79 ng/g (from not detected to 130 ng/g), respectively. In standard house dust SRM2585, DEGBBCEP and EBBCEP were detected at 160 ± 15.7 and 1897 ± 38.8 ng/g, respectively, but DEGBBCPP was not detected. Future studies should evaluate the potential adverse health effects of these emerging flame retardants.

This study aims to explore the prevalence and determinations of physical inactivity among hospital employees in Shanghai, China. A cross-sectional study of 4612 employees aged 19 to 68 years was conducted through stratified cluster sampling from different classes of Shanghai hospitals in 2011. The total physical activity was evaluated using the metabolic equivalent according to the Global Physical Activity Questionnaire. Among the participants, 38.5%, 32.3%, and 64.6% of the employees are inactive at work, commuting, and taking leisure time, respectively. Up to 41.8% of the men and 37.8% of the women (P = 0.012) are physically inactive. When the age and educational level are adjusted, male doctors and medical technicians show a higher percentage of physical inactivity than male workers in logistics (P = 0.001). Among females, employees who are working in second- and third-class hospitals show a higher proportion of physical inactivity than those who are working in community health care centers. Logistic regression analyses show that the odds ratios (ORs) of leisure-time physical inactivity associated with the intensity of physical activity at work are 2.259, 2.897, and 4.266 for men (P < 0.001) and 2.456, 3.259, and 3.587 for women (P < 0.001), respectively. The time during commuting activities is significantly associated with leisure-time physical inactivity in either sex (OR = 2.116 for men and 2.173 for women, P < 0.001). Hospital employees, particularly doctors and medical technicians, show a higher proportion of physical inactivity than other inhabitants in Shanghai. The time and intensity of activity at work and commuting are associated with leisure-time activities.

Background: The likely corresponding increase in prevalence of chronic disease will be a major challenge for the health care system. Few nationwide epidemiological studies include a large enough sample of older adults to provide estimates of chronic conditions in the older adult population. This study aimed to estimate the prevalence of eight common chronic health conditions and examine socioeconomic inequalities in the diseases among older adults in China., Method: Data are from SAGE-China Wave 1, including 13,157 people aged 50-plus years. Respondents were asked if they had been diagnosed with any of the following chronic medical conditions: angina, arthritis, asthma, stroke, diabetes, depression, chronic lung disease and hypertension. A set of validated symptom-based questions and related diagnostic algorithms were also used to estimate disease prevalence for angina, arthritis, asthma and depression. Multivariate logistic regression was performed to examine the probability of developing chronic conditions in relation to sociodemographic variables such as gender, age, urban/rural setting and household wealth level., Results: Fifty percent of respondents reported having one of the selected chronic conditions, 18.9% two conditions, 5.8% three conditions, and 1.4% reported having four or more chronic conditions. Self-reported prevalence was generated for angina (8%), arthritis (22%), asthma (2%), stroke (3%), diabetes (7%), depression (0.3%), chronic lung disease (8%) and hypertension (27%). The symptom-based prevalence of angina, arthritis, asthma and depression was 10%, 20%, 4% and 2%, respectively., Conclusion: This study provides the best available prevalence estimates for major chronic health conditions among older Chinese adults. Findings from this study indicated that major chronic conditions were common, so prevention and early intervention targeting adults aged 50 years and older should be prioritized.

The aim of this study was to determine the prevalence of overweight and obese subjects in the Shanghai population of China and its association with undiagnosed hypertension, by taking age, gender and place of residence (urban or suburban) into account. A cross-sectional population-based survey was conducted in 2007. The sample included 13,359 participants aged 15-69 years.Weight, height, and blood pressure were recorded, and information about gender, age and place of residence was obtained. Overweight and obesity prevalence were calculated by the body mass index (BMI) definition recommended by Working Group on Obesity in China (normal weight, 18.5-23.9 kg/m(2); overweight, 24-27.9 kg/m(2); obesity, ≥ 28 kg/m(2)). Undiagnosed hypertension was defined by China criteria in accord with that of WHO-ISH (subjects with systolic pressure ≥ 140 mmHg, and/or diastolic pressure ≥ 90 mmHg). Multiple logistic regression analyses were used to assess the association of overweight or obesity with undiagnosed hypertension by adjusting for age, gender and place of residence. The overall overweight, obesity, and undiagnosed hypertension prevalence were 27.6% (95% CI: 26.8-28.4), 6.6% (95% CI: 6.2-7.0), and 15.5% (95% CI: 14.9-16.1), respectively. Compared to normal weight subjects, the odds ratios (OR) for subjects who were overweight and had hypertension was 2.33 (95% CI: 2.10-2.59); that for obesity and hypertension was 4.27 (95% CI: 3.66-4.99). These data suggest that overweight and obesity prevalence and their association with undiagnosed hypertension are high in our study population.