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This study examines whether the behaviour of high-tech firms (earnings management) differs between the period immediately before certification and the period during certification. Additionally, the influence of the Chinese government's equity ownership on the earnings management tendencies of high-tech firms is examined. This study is focused on Chinese companies that are listed on the Chinese stock exchange from 2009 to 2020. Empirical analyses, including descriptive statistics, correlation analysis, and regression analysis, were conducted to obtain the results. The two main findings are as follows: First, during the certification period, high-tech firms tend to engage in earnings-minimising activities, due to the continuous supervision and management required to meet and maintain the certification requirements imposed by the Chinese government. Second, firms with higher equity ownership by the Chinese government tend to engage in more earnings management immediately before achieving high-tech firm certification than during the certification period. This behaviour can be attributed to the differential taxation of high-tech firms and the Chinese government's intensive supervision, management, and regulation of firms. This study contributes to the literature on the impact of government supervision, management, and/or regulations on the level of earnings management activities by high-tech firms. It examines the effect of government ownership of firms and the corporate structure of hightech firms on earnings management. It also provides foreign investors with information about how high-tech firms and the Chinese government behave in terms of certification. [ABSTRACT FROM AUTHOR]

Non‐methane hydrocarbons (NMHCs) play an important role in atmospheric chemistry and the ocean is a source of NMHCs in the atmosphere. Here, we investigated the annual variations of NMHCs concentrations and fluxes (i.e., ethane, ethylene, propane, propylene, and isoprene) in the semi‐enclosed shallow waters of Jiaozhou Bay from September 2016 to August 2017. Ethylene is the most abundant NMHCs, with an annual average concentration of 487.7 ± 239.3 pmol L−1. The concentrations of other NMHCs were lower; the average concentrations for ethane, propane, propylene, and isoprene were 87.0 ± 49.0, 65.7 ± 22.9, 127.4 ± 77.8, and 60.5 ± 47.1 pmol L−1, respectively. NMHCs concentrations varied largely between seasons and higher abundance were observed in summer. The correlations between NMHCs and environmental variables such as chlorophyll a (Chl‐a), dissolved organic carbon (DOC) were ambiguous, and principal component analysis (PCA) suggested nutrients contributed significantly to total variation. These results indicated that the control of NMHCs could be more complex in dynamic and anthropogenically impacted estuarine systems, which could be a result of multiple processes involving phytoplankton release, photochemical production, riverine input, and so forth. The average annual sea‐to‐air fluxes of ethane, ethylene, propane, propylene, and isoprene were 105.9–298.3, 583.5–1,337.0, 36.7–95.2, 85.2–389.6, and 25.2–182.4 nmol m−2 d−1, respectively. Although coastal and estuarine environments only account for a minor fraction of the global ocean (0.26%–0.39%), NMHC emissions from these areas could influence regional atmospheric chemistry and may be relatively important for global budgets (ethane, 1.70%; ethylene, 1.54%; propane, 1.29%; propylene, 0.87%; isoprene, 3.17%). Plain Language Summary: Non‐methane hydrocarbons (NMHCs) are abundant volatile organic compounds in the atmosphere and play an important role in atmospheric chemistry. The emissions of NMHCs from marine waters are a significant source in the atmosphere. We investigated the annual concentrations and fluxes of five NMHCs in Jiaozhou Bay, a typical anthropogenically impacted estuary on the east coast of North China. NMHCs concentrations and fluxes varied largely between seasons. Multiple processes including phytoplankton release, photochemical production, riverine input might contribute to this variability. The absence of correlations between NMHCs and environmental variables also suggested that the control of NMHCs could be more complex in estuarine systems. Based on our extrapolation, the contribution of coastal and estuarine environments to marine NMHCs emission budgets could be disproportionately high in comparison to their size, despite only accounting for a minor fraction of the global ocean. Given the strong variability of NMHCs emission to the atmosphere, it is necessary to consider the seasonality for better estimation of marine NMHCs budget. Key Points: NMHCs concentrations varied largely between seasons and higher abundance occurred in summerLack of proportionality between NMHCs and environmental variables suggested the complex control of NMHCs in estuarine systemsThe sea‐to‐air fluxes of NHMCs exhibited seasonal variations, and the emission of NMHCs was a source of atmospheric NMHCs [ABSTRACT FROM AUTHOR]

The Dajiu Lake is an important subtropical alpine wetland in central China. In May of 2019, an ecological investigation was conducted on water quality and aquatic organisms (phytoplankton, zooplankton and zoobenthos) of the Dajiu Lake in Shennongjia forest region. The results showed that parameters of water quality in No. 5 and No. 9 sub lakes of the Dajiu Lake corresponded with standard of class II water of the Environmental Quality Standards for Surface Water (GB 3838 -- 2002), while other sub lakes corresponded with standard of class III water. Diversity indexes of phytoplankton and zooplankton ranged from 2.0 to 3.0, and there were two families (Chironomidae and Libellulidae Rambur) of one phylum (Arthropoda) in zoobenthos. Comprehensive health index of entropy weight was used to evaluate water ecological status of the Dajiu Lake, and water quality of No. 5, No. 8 and No. 9 sub lakes was in a healthy status, while other sub lakes were in sub-health status. Finally, corresponding countermeasures were proposed according to protection needs of the Dajiu Lake. [ABSTRACT FROM AUTHOR]

Background: In China, increasing attention has been devoted to the patient safety culture within health administrative departments and healthcare organizations. However, no official version of a patient safety culture assessment tool has been published or is widely used, and little is known about the status of the safety culture in Chinese hospitals. The aims of this study were to examine the reliability and validity of the Safety Attitudes Questionnaire in Chinese and to establish benchmark data on the safety culture in Beijing.Methods: Across-sectional survey on patient safety culture was conducted from August to October 2014 using the Safety Attitudes Questionnaire in Chinese. Using a stratified random sampling method, we investigated departments from five integrative teaching hospitals in Beijing; frontline healthcare workers in each unit participated in the survey on a voluntary basis. The internal consistency and reliability were tested via Cronbach's alpha, and the structural validity of the questionnaire was tested using a correlation analysis and confirmatory factor analysis. The patient safety culture in the five hospitals was assessed and analyzed.Results: A total of 1663 valid questionnaires were returned, for a response rate of 87.9%. Cronbach's alpha of the total scale was 0.945, and Cronbach's alpha for the six dimensions ranged from 0.785 to 0.899. The goodness-of-fit indices in the confirmatory factor analysis showed an acceptable but not ideal model fit. The safety attitude score of healthcare workers in the five hospitals was 69.72, and the positive response rate was 38.57% overall. The positive response rates of the six dimensions were between 20.80% and 59.31%.Conclusions: The Safety Attitudes Questionnaire in Chinese has good internal consistency, and the structural validity and reliability are acceptable. This questionnaire can be used to assess the safety culture in Beijing hospitals, but some items require further refinement. The patient safety culture in Beijing hospitals must be improved in certain key areas. [ABSTRACT FROM AUTHOR]

Background: Antenatal maternal mental health problems have numerous consequences for the well-being of both mother and child. This study aimed to test and construct a pertinent model of antenatal depressive symptoms within the conceptual framework of a stress process model.Methods: This study utilized a cross-sectional study design.Inclusion Criteria: participants were adult women (18 years or older) having a healthy pregnancy, in their third trimester (the mean weeks gestation was 34.71).Data Collection: depressive and anxiety symptoms were measured by Zung's Self-rating Depressive and Anxiety Scale, stress was measured by Pregnancy-related Pressure Scale, social support and coping strategies were measured by Social Support Rating Scale and Simplified Coping Style Questionnaire, respectively.Analysis: path analysis was applied to examine the hypothesized causal paths between study variables.Results: A total of 292 subjects were enrolled. The final testing model showed good fit, with normed χ (2) = 32.317, p = 0.061, CFI = 0.961, TLI = 0.917, IFI = 0.964, NFI = 0.900, RMSEA = 0.042. This path model supported the proposed model within the theoretical framework of the stress process model. Pregnancy-related stress, financial strain and active coping have both direct and indirect effects on depressive symptoms. Psychological preparedness for delivery, social support and anxiety levels have direct effects on antenatal depressive symptoms. Good preparedness for delivery could reduce depressive symptoms, while higher levels of anxiety could significantly increase depressive symptoms. Additionally, there were indirect effects of miscarriage history, irregular menstruation, partner relationship and passive coping with depressive symptoms.Conclusion: The empirical support from this study has enriched theories on the determinants of depressive symptoms among Chinese primipara, and could facilitate the formulation of appropriate interventions for reducing antenatal depressive symptoms, and enhancing the mental health of pregnant women. [ABSTRACT FROM AUTHOR]

Background: Argonaute 2 (AGO2), a central component of RNA-induced silencing complex, plays critical roles in cancer. We examined whether the single nucleotide polymorphisms (SNPs) of AGO2 were related to the risk of nasopharyngeal carcinoma (NPC).Methods: Twenty-five tag SNPs within AGO2 were genotyped in Guangxi population consisting of 855 NPC patients and 1036 controls. The SNPs significantly associated with NPC were further replicated in Guangdong population consisting of 996 NPC patients and 972 controls. Functional experiments were conducted to examine the biologic roles of AGO2 in NPC.Results: A significantly increased risk of advanced lymph node metastasis of NPC was identified for the AGO2 rs3928672 GA + AA genotype compared with GG genotype in both the Guangxi and Guangdong populations (combined odd ratio = 2.08, 95 % confidence interval = 1.44-3.01, P = 8.60 × 10(-5)). Moreover, the AGO2 protein expression levels of rs3928672 GA + AA genotype carriers were higher than the GG genotype carriers in the NPC tissues (P = 0.041), and AGO2 was significantly over-expressed in NPC tissues compared with non-cancerous nasopharyngeal tissues (P = 0.011). In addition, AGO2 knockdown reduced cell proliferation, induced apoptosis, and inhibited migration of NPC cells. Furthermore, gene expression microarray showed that genes altered following AGO2 knockdown were clustered in tumorigenesis and metastasis relevant pathways.Conclusions: Our findings suggest that the genetic polymorphism in AGO2 may be a risk factor for the advanced lymph node metastasis of NPC in Chinese populations, and AGO2 acts as an oncogene in the development of NPC. [ABSTRACT FROM AUTHOR]

Abstract: Energy audit is the main approach to improve energy management and excavate energy conservation potential for Chinese enterprises. This paper uses game theory analysis tools to establish a government, energy auditors and audited the tripartite game model. By analysis of three strategies and payoff functions, it draws the conclusions about the game equilibrium solution. On the basis, propose the control countermeasures with respect to the problem of corruption and reduce the losses caused by uncertain information. [Copyright &y& Elsevier]

To identify susceptibility variants for hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC), we conducted a genome-wide association study by genotyping 440,794 SNPs in 355 chronic HBV carriers with HCC and 360 chronic HBV carriers without HCC, all of Chinese ancestry. We identified one intronic SNP (rs17401966) in KIF1B on chromosome 1p36.22 that was highly associated with HBV-related HCC and confirmed this association in five additional independent samples, consisting of 1,962 individuals with HCC, 1,430 control subjects and 159 family trios. Across the six studies, the association with rs17401966 was highly statistically significant (joint odds ratio = 0.61, P = 1.7 × 10−18). In addition to KIF1B, the association region tagged two other plausible causative genes, UBE4B and PGD. Our findings provide evidence that the 1p36.22 locus confers susceptibility to HBV-related HCC, and suggest that KIF1B-, UBE4B- or PGD-related pathways might be involved in the pathogenesis of this malignancy. [ABSTRACT FROM AUTHOR]

The article discusses the prevalence of airborne bacteria and fungi at the Emperor Qin's Terra-Cotta Museum in Xi'an, China on October 1, 2006. It states that airborne bacteria were collected through gravitational sedimentation. Moreover, it notes that museum air was affected by human activity, thus, limitation of visitors and opening of windows are suggested.

The spatial distributions, fluxes, and environmental effects of non-methane hydrocarbons (NMHCs) were investigated in the Yellow Sea (YS) and the East China Sea (ECS) in spring. The average concentrations of ethane, propane, i-/n-butane, ethylene, propylene and isoprene in the seawater were 18.1 ± 6.4, 15.4 ± 4.7, 6.8 ± 2.9, 6.4 ± 3.2, 67.1 ± 26.7, 20.5 ± 8.7 and 17.1 ± 11.1 pmol L−1, respectively. The alkenes in the surface seawater were more abundant than their saturated homologs and NMHCs concentrations (with the exception of isoprene) decreased with carbon number. The spatial variations of isoprene were consistent with the distributions of chlorophyll a (Chl- a) and Chaetoceros , Skeletonema , Nitzschia mainly contributed to the production of isoprene, while the others' distributions might be related to their photochemical production. Observations in atmospheric NMHCs indicated alkanes in the marine atmosphere decreased from inshore to offshore due to influence of the continental emissions, while alkenes were largely derived from the oceanic source. In addition, no apparent diurnal discrepancy of atmospheric NMHCs (except for isoprene) were found between daytime and night. As the main sink of NMHCs in seawater, the average sea-to-air fluxes of ethane, propane, i-/n-butane, ethylene and propylene were 31.70, 29.75, 18.49, 15.89, 239.6, 67.94 and 52.41 nmol m−2 d−1, respectively. The average annual emissions of isoprene accounted for 0.1–1.3% of the global ocean emissions, which indicated that the coastal and shelf areas might be significant sources of isoprene. Furthermore, this study represents the first effort to estimate the environmental effects caused by NMHCs over the YS and the ECS and the results demonstrated contributions of alkanes to ozone and secondary organic aerosol (SOA) formation were lower than those of the alkenes and the largest contributor was isoprene. Image 1 • The emission and environmental effects of NMHCs were firstly estimated in the marginal seas of China. • Isoprene production was dependent on the phytoplankton species and biomass. • High concentrations of NMHCs (except for isoprene) were associated with abundant DOC. • The coastal and shelf sea represent an important source of atmospheric isoprene. • Alkenes contributed more to ozone and secondary organic aerosol formation than alkanes did. [ABSTRACT FROM AUTHOR]

The end-Permian mass extinction (ca. 252 Ma) represents the most severe biotic crisis of the Phanerozoic, and it was accompanied by profound environmental perturbations, especially to the global carbon cycle, as indicated by sharp negative carbon isotope excursions (CIE) in both carbonates (d13Ccarb) and organic matter (d13Corg). To date, carbon isotope records are mostly from marine Permian-Triassic transitional sequences with relatively few highresolution carbon isotope profiles having been generated for terrestrial facies. Terrestrial Permian-Triassic sequences suitable for high-resolution carbon isotope study are rare globally and are difficult to correlate with better-studied marine sequences. However, carbon isotope records from continental facies are essential to a full understanding of global carbon cycle changes during the Permian-Triassic transition. Here, we present bulk d13Corg profiles for three terrestrial sections in North China representing Permian- Triassic transitional beds. These profiles exhibit similar patterns of secular variation defining three stages: (1) a pre-CIE interval, (2) a CIE interval, characterized by a rapid negative shift of 1.7-2.2 within the middle part of the Sunjiagou Formation, and (3) a post-CIE interval. The similarity of the CIE in all three study sections facilitates correlations among them, and its presence in the Permian-Triassic transitional beds suggests that it is equivalent to the negative CIE at the Permian-Triassic boundary in the Meishan global stratotype section and point (GSSP) and in coeval marine and terrestrial sections globally. The end-Permian CIE was probably triggered by a massive release of 13C-depleted carbon from volcanogenic sources leading to elevated atmospheric pCO2, although oceanic sources of CO2 cannot be ruled out at present. [ABSTRACT FROM AUTHOR]

Objective: To evaluate implementation of the National Essential Medicines Scheme (NEMS) in rural China., Methods: Two rural counties/districts in each of three provinces where NEMS had been implemented were surveyed. Information was collected from NEMS staff at the province, county/district, township and village levels; patients with chronic disease were also interviewed. Service provision, finances, prescriptions, inpatient records and the expenditures of patients with certain diagnoses were investigated in township hospitals and village clinics. The results were compared with the corresponding data recorded before NEMS was introduced., Findings: Following the introduction of NEMS, drug procurement in each study location was systematized. Total drug costs declined. This, and improved prescribing, reduced the costs of outpatient and inpatient care and led, apparently, to increased uptake of health services. However, the prices of some drugs had increased and the availability of others had declined. The compensation of health-care providers for NEMS-related reductions in their incomes had been largely ineffective. As a result of the introduction of NEMS, health facilities relied more on public financing. Many health-care providers complained about higher workloads and lower incomes., Conclusion: Although it was well conceived, the introduction of NEMS into China's decentralized, fee-for-service system of health care has not been straightforward. It has highlighted the problems associated with attempts to modernize health care and health financing for patients' benefit. Sustainable mechanisms to compensate health-care providers for lost income are needed to ensure that NEMS is a success.

Objective: The aim of this study was to investigate the effect of husbands' gender equity awareness on wives' reproductive health in rural areas of China., Methods: A qualitative study of 1919 wives aged from 18 to 69 years and their husbands was conducted in rural China. Data were collected through 3838 structured interviews. We quantified "belief in gender equity" based on responses to 7 specific statements and graded the responses according to a system scoring the strength of the overall belief (a total score 19 or higher, strong; 15-18, moderate; and 14 or less, weak). Data were recorded by bi-input with EpiData 3.1 after being carefully checked. χ(2) tests and logistic regression were performed in this study., Results: Only 20.0% of the husbands demonstrated strong convictions about gender equity. Husbands' gender equity awareness is related to wives' receiving any prenatal care, the number of prenatal visits to a healthcare provider, having a hospital delivery of a newborn, and having gynecological examination one time per year., Conclusion: Raising husbands' gender awareness on wives' reproductive health and reducing female illiteracy were very necessary. The whole community should participate actively in the progress of reproductive health promotion. China's Health System requires an integration of its various sectors, including family planning, maternal and child care in resource sharing, and service delivery., Target Audience: Obstetricians & gynecologists., Learning Objectives: After completing this CME activity, physicians should be better able to evaluate the impact of husbands' gender equity awareness on wives' reproductive health in rural areas of China; assess how raising husbands' gender awareness on wives' reproductive health and reducing female illiteracy will improve wives' reproductive health; and analyze how China's Health System can integrate its various sectors, including family planning, maternal, and childcare in resource sharing, and service delivery, to improve wives' reproductive health.