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https://www.readbyqxmd.com/read/28549323/investigation-of-submicron-aerosol-characteristics-in-changzhou-china-composition-source-and-comparison-with-co-collected-pm2-5
#1
Zhaolian Ye, Qing Li, Jiashu Liu, Shipeng Luo, Quanfa Zhou, Chenglu Bi, Shuaishuai Ma, Yanfang Chen, Hui Chen, Ling Li, Xinlei Ge
Mass concentrations and chemical compositions of submicron particles (PM1) collected during July 2015 to April 2016 in Changzhou, a city in the Yangtze River Delta region, were systematically investigated for the first time. Specifically, an Aerodyne soot particle aerosol mass spectrometer (SP-AMS) was employed to characterize the water-soluble organic matter (WSOM). The average concentration of PM1 was 63.6 μg m(-3), occupying ∼60% of co-collected PM2.5 mass. Water soluble inorganic ions (WSIIs) was the most abundant component with secondary ions (SO4(2-), NO3(-) and NH4(+)) as the dominant species...
May 17, 2017: Chemosphere
https://www.readbyqxmd.com/read/28549303/end-of-life-eol-mobile-phone-management-in-hong-kong-households
#2
Wen-Jing Deng, John P Giesy, C S So, Hai-Long Zheng
A questionnaire survey and interviews were conducted in households and end-of-life (EoL) mobile phone business centres in Hong Kong. Widespread Internet use, combined with the rapid evolution of modern social networks, has resulted in the more rapid obsolescence of mobile phones, and thus a tremendous increase in the number of obsolete phones. In 2013, the volume of EoL mobile phones generated in Hong Kong totalled at least 330 tonnes, and the amount is rising. Approximately 80% of electronic waste is exported to Africa and developing countries such as mainland China or Pakistan for recycling...
May 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28549288/ecological-effects-of-soil-properties-and-metal-concentrations-on-the-composition-and-diversity-of-microbial-communities-associated-with-land-use-patterns-in-an-electronic-waste-recycling-region
#3
Wencheng Wu, Changxun Dong, Jiahui Wu, Xiaowen Liu, Yingxin Wu, Xianbin Chen, Shixiao Yu
Soil microbes play vital roles in ecosystem functions, and soil microbial communities may be strongly structured by land use patterns associated with electronic waste (e-waste) recycling activities, which can increase the heavy metal concentration in soils. In this study, a suite of soils from five land use types (paddy field, vegetable field, dry field, forest field, and e-waste recycling site) were collected in Longtang Town, Guangdong Province, South China. Soil physicochemical properties and heavy metal concentrations were measured, and the indigenous microbial assemblages were profiled using 16S rRNA high-throughput sequencing and clone library analyses...
May 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28549285/environmental-response-to-long-term-mariculture-activities-in-the-weihai-coastal-area-china
#4
Hongmei Li, Xiaomin Li, Qiang Li, Ying Liu, Jide Song, Yongyu Zhang
The environmental impacts of rapid expansion of mariculture have garnered worldwide attention. China is currently one of the largest countries to engage in this practice. In this study, a representative mariculture zone, the Weihai coastal area in China, was explored to determine the temporal variations in regional nutrients, N/P ratio, dissolved oxygen (DO), pH, chlorophyll a (Chl-a), and cellular abundance of diatoms and dinoflagellates in response to the rapid growth in mariculture activities between 2006 and 2014...
May 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28549212/synthesis-of-four-monoterpene-derived-organosulfates-and-their-quantification-in-atmospheric-aerosol-samples
#5
Yuchen Wang, Jingyun Ren, X H Hilda Huang, Rongbiao Tong, Jian Zhen Yu
Monoterpenes, a major class of biogenic volatile organic compounds, are known to produce oxidation products that further react with sulfate to form organosulfates. The accurate quantification of monoterpene-derived organosulfates (OSs) is necessary for quantifying this controllable aerosol source; however, it has been hampered by a lack of authentic standards. Here we report a unified synthesis strategy starting from the respective monoterpene through Upjohn dihydroxylation or Sharpless asymmetric dihydroxylation followed by mono-sulfation with sulfur trioxide-pyridine complex...
May 26, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28548607/nutritional-risk-and-nutritional-status-at-admission-and-discharge-among-chinese-hospitalized-patients-a-prospective-nationwide-multicenter-study
#6
Mingwei Zhu, Junmin Wei, Wei Chen, Xin Yang, Hongyuan Cui, Sainan Zhu
OBJECTIVE: The objective of this study was to assess nutritional risk and status of Chinese hospitalized patients at admission and discharge and relations with clinical outcomes. METHODS: A prospective, nationwide, multicenter study was conducted from June to September 2014 in 34 large hospitals in 18 cities in China. Patients ≥ 18 years with a hospital stay of 7-30 days were recruited. Anthropometric and laboratory indicators, nutritional risk screening, and assessment by Nutritional Risk Screening 2002 (NRS 2002) and subjective global assessment (SGA) were performed within 24 hours of admission and discharge...
May 26, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28548587/comparison-of-efficacy-between-tace-combined-with-apatinib-and-tace-alone-in-the-treatment-of-intermediate-and-advanced-hepatocellular-carcinoma-a-single-center-randomized-controlled-trial
#7
Wei Lu, Xin-Li Jin, Chao Yang, Peng Du, Fu-Qiang Jiang, Jun-Peng Ma, Jian Yang, Peng Xie, Zhe Zhang
OBJECTIVE: This study was designed to compare the clinical efficacy and safety of transcatheter arterial chemoembolization (TACE) combined with apatinib and TACE alone in the treatment of intermediate and advanced hepatocellular carcinoma (HCC). METHODS: From March 2015 to August 2015, a total of 44 patients with moderate and advanced HCC, who were admitted in the Navy General Hospital of China, were included into this study. These patients were randomly divided into two groups: group A and group B...
May 26, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28548568/genetic-antigenic-and-pathogenic-characteristics-of-newcastle-disease-viruses-isolated-from-geese-in-china
#8
Qianqian Xu, Junfeng Sun, Mengying Gao, Shasha Zhao, Huairan Liu, TingTing Zhang, Zongxi Han, Xiangang Kong, Shengwang Liu
Four Newcastle disease virus (NDV) strains were isolated from domestic, commercial geese that showed clinical signs that were believed to be the result of NDV infections. The genetic, antigenic, and pathogenic characteristics of the 4 NDVs were compared with those of NDV strains that were isolated from chickens. The complete genomes of 2 of the NDV strains contained 15,186 nucleotides (nt); the other 2 contained 15,192 nt, and exhibited the typical genomic organization of genotype II NDV and molecular characteristics of VIId NDVs...
May 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28548104/genomic-analysis-of-oesophageal-squamous-cell-carcinoma-identifies-alcohol-drinking-related-mutation-signature-and-genomic-alterations
#9
Jiang Chang, Wenle Tan, Zhiqiang Ling, Ruibin Xi, Mingming Shao, Mengjie Chen, Yingying Luo, Yanjie Zhao, Yun Liu, Xiancong Huang, Yuchao Xia, Jinlin Hu, Joel S Parker, David Marron, Qionghua Cui, Linna Peng, Jiahui Chu, Hongmin Li, Zhongli Du, Yaling Han, Wen Tan, Zhihua Liu, Qimin Zhan, Yun Li, Weimin Mao, Chen Wu, Dongxin Lin
Approximately half of the world's 500,000 new oesophageal squamous-cell carcinoma (ESCC) cases each year occur in China. Here, we show whole-genome sequencing of DNA and RNA in 94 Chinese individuals with ESCC. We identify six mutational signatures (E1-E6), and Signature E4 is unique in ESCC linked to alcohol intake and genetic variants in alcohol-metabolizing enzymes. We discover significantly recurrent mutations in 20 protein-coding genes, 4 long non-coding RNAs and 10 untranslational regions. Functional analyses show six genes that have recurrent copy-number variants in three squamous-cell carcinomas (oesophageal, head and neck and lung) significantly promote cancer cell proliferation, migration and invasion...
May 26, 2017: Nature Communications
https://www.readbyqxmd.com/read/28547824/the-promise-of-a-better-group-future-cognitive-alternatives-increase-students-self-efficacy-and-academic-performance
#10
Aarti Iyer, Airong Zhang, Jolanda Jetten, Zhen Hao, Lijuan Cui
Drawing on classic social identity theorizing (Tajfel, Differentiation between social groups: Studies in the social psychology of intergroup relations, London, UK, Academic Press, 1978), we propose that low-status minority group members' self-efficacy and performance on intellectual tasks can be enhanced by prompting them to believe in a better future for their group (i.e., increasing awareness of cognitive alternatives to the existing low-status position). Study 1 manipulated cognitive alternatives among 157 migrant workers' children in China, showing that self-efficacy was enhanced in the high compared to the low cognitive alternative condition...
May 25, 2017: British Journal of Social Psychology
https://www.readbyqxmd.com/read/28547803/effects-of-maltose-and-lysine-treatment-on-coffee-aroma-by-flash-gas-chromatography-electronic-nose-and-gas-chromatography-mass-spectrometry
#11
He Yuqin, Zhang Haide, Wen Nana, Hu Rongsuo, Wu Guiping, Zeng Ying, Li Xiong, Miao Xiaodan
BACKGROUND: Arabica coffee is a subtropical agricultural product in China. Coffee undergoes a series of thermal reactions to form abundant volatile profiles after roasting, so it loses a lot of reducing sugars and amino acids. Adding carbonyl compounds with amino acids before roasting could ensure the nutrition and flavor of coffee. The technology is versatile for the development of coffee roasting process. This investigation evaluates the effects of combining maltose and lysine (Lys) to modify coffee aroma and the possibly related mechanisms...
May 26, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28547481/changes-in-flowering-phenology-of-woody-plants-from-1963-to-2014-in-north-china
#12
Huanjiong Wang, Shuying Zhong, Zexing Tao, Junhu Dai, Quansheng Ge
Existing evidence demonstrates that the first flowering date (FFD) of most plant species became earlier in response to temperature increase over the past several decades. However, the studies on changes in flowering duration (FD) were limited. By using the non-parametric Theil-Sen estimator, this study investigated the temporal trends in 127 time series of FFD, end of flowering date (EFD), and FD of 97 woody plants from 1963 to 2014 at three sites (Harbin, Beijing, and Xi'an) in North China. The relationship between flowering phenophases and temperature was analyzed using two phenological models...
May 25, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28547377/the-excessive-enrichment-of-trace-elements-in-migratory-and-breeding-red-crowned-cranes-grus-japonensis-in-china
#13
Luo Jinming, Wang Yongjie, Gao Zhongyan, Wang Wenfeng
The excessive enrichment of trace elements, such as Pb and Cd, from food may contribute to the decline of migratory red-crowned cranes (Grus japonensis) in China. To test this prediction, we determined the concentrations of Pb and Cd, as well as further macro and trace elements (Ca, Mg, Cu, Zn) in the target species and their prey (sediment, reed root, mollusk, arthropods, and common fish species) in both the wintering (Yancheng wetland) and breeding sites (Zhalong wetland) of cranes in China. The maximum concentrations of Pb (130 mg kg(-1) dry weight (dw)) and Cd (10...
May 26, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28546830/antibiotic-resistance-serogroups-virulence-genes-and-phylogenetic-groups-of-escherichia-coli-isolated-from-yaks-with-diarrhea-in-qinghai-plateau-china
#14
Mujeeb Ur Rehman, Hui Zhang, Muhammad Kashif Iqbal, Khalid Mehmood, Shucheng Huang, Fazul Nabi, Houqiang Luo, Yanfang Lan, Jiakui Li
BACKGROUND: Ruminants serve as one of the most important reservoirs for pathogenic Escherichia coli. Infection with E. coli, a foodborne enteropathogen, can lead to asymptomatic infections that can cause life-threatening complications in humans. Therefore, from a clinical and human health perspective, it is important to know which virulence genes, phylogenetic groups, serogroups, and antibiotic resistance patterns are present in E. coli strains in yaks with diarrheic infections. METHODS: Two-hundred and ninety-two rectal swabs were collected from diarrheic yaks in Qinghai Plateau, China...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/28546741/sj%C3%A3-gren-s-syndrome-is-associated-with-negatively-variable-impacts-on-domains-of-health-related-quality-of-life-evidence-from-short-form-36-questionnaire-and-a-meta-analysis
#15
REVIEW
Qiuxiang Zhang, Xulin Wang, Haoyang Chen, Biyu Shen
PURPOSE: The purpose of this article was to systematically review the literature to identify the impact of primary Sjögren's syndrome (pSS) on specific health-related quality of life (HRQoL) domains. METHODS: A meta-analysis was performed, and the related articles were searched in Medline, Embase, Cochrane Library, China National Knowledge Infrastructure, China Biology Medicine, and Web of Science databases and in reference lists of articles and systematic reviews...
2017: Patient Preference and Adherence
https://www.readbyqxmd.com/read/28546477/the-complete-genome-sequence-of-a-human-parechovirus-from-a-child-with-diarrhea-in-china-revealed-intertypic-recombination
#16
Xiaoying Zhao, Chenglin Zhou, Xiaodan Zhang, Wang Li, Xinyu Wan, Yan Wang, Yuming Zeng, Wen Zhang
A human parechovirus (HPeV), CH-ZXY1, was detected in feces from a child with diarrhea. Phylogenetic trees over three different genomic regions revealed discordant topological structures. Recombination analysis indicates that CH-ZXY1 is a recombinant resulting from recombination between HPeV5 and HPeV1, which was confirmed by PCR covering the recombination breakpoint.
May 25, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28545996/diversity-of-free-living-marine-ciliates-alveolata-ciliophora-faunal-studies-in-coastal-waters-of-china-during-the-years-2011-2016
#17
REVIEW
Weiwei Liu, Jiamei Jiang, Yuan Xu, Xuming Pan, Zhishuai Qu, Xiaotian Luo, Hamed A El-Serehy, Alan Warren, Honggang Ma, Hongbo Pan
In the period 2011-2016, a series of investigations were carried out on the marine and brackish free-living ciliate fauna of the temperate-tropical coastal waters of China. About 210 morphotypes including over 100 new species within six groups (cyrtophorians, hypotrichs s.l., karyorelicteans, oligotrichs, pleurostomatids, and scuticociliates) were isolated and described in detail from observations of live cells and silver-stained specimens. Based on their morphology, morphogenesis and molecular phylogeny, three new families (Wilbertomorphidae, Kentrophyllidae, Protolitonotidae) and 22 new genera (Apotrachelocerca, Wilbertomorpha, Protolitonotus, Paracyrtophoron, Heterohartmannula, Aporthotrochilia, Falcicyclidium, Paramesanophrys, Pseudodiophrys, Monocoronella, Neourostylopsis, Apobakuella, Parabistichella, Heterokeronopsis, Heterotachysoma, Antiokeronopsis, Apoholosticha, Pseudogastrostyla, Antestrombidium, Sinistrostrombidium, Williophrya, and Varistrombidium) were established...
April 21, 2017: European Journal of Protistology
https://www.readbyqxmd.com/read/28545995/systematic-studies-on-ciliates-alveolata-ciliophora-in-china-progress-and-achievements-based-on-molecular-information
#18
REVIEW
Feng Gao, Jie Huang, Yan Zhao, Lifang Li, Weiwei Liu, Miao Miao, Qianqian Zhang, Jiamei Li, Zhenzhen Yi, Hamed A El-Serehy, Alan Warren, Weibo Song
Due to complex morphological and convergent morphogenetic characters, the systematics of ciliates has long been ambiguous. Since 1990, the Laboratory of Protozoology, Ocean University of China, in collaboration with other research groups worldwide, has carried out a series of integrative investigations on ciliate systematics. To date, genomic DNA has been extracted from about 1700 ciliate strains, and phylogenetic analyses have been performed for two-thirds of orders. Main findings are: (1) Classifications of about 50 hypotrichous species have been resolved, although the monophylies of three hypotrichous orders remain unconfirmed; (2) Euplotia and two orders and all seven families within them are monophyletic assemblages; (3) Lynnella represents an order-level taxon, and is separated from two sister monophyletic subclasses Oligotrichia and Choreotrichia; (4) the peritrich families Zoothamniidae and Vorticellidae are separated from each other, and Zoothamnium exhibits a high genetic diversity; (5) the scuticociliate order Philasterida is monophyletic and separated from loxocephalids, and the thigmotrichids is a suborder within Pleuronematida; (6) 14 classes were recovered including one new class Protocruziea, and Mesodiniea is basal to subphyla Intramacronucleata and Postciliodesmatophora; (7) mitochondrial cytochrome c oxidase subunit I heteroplasmy was reported in ciliates for the first time, and candidate barcoding genes for Frontonia species identification were identified...
May 6, 2017: European Journal of Protistology
https://www.readbyqxmd.com/read/28545990/retrospective-survey-of-mcr-1-and-mcr-2-in-german-pig-fattening-farms-2011-2012
#19
Nicole Roschanski, Linda Falgenhauer, Mirjam Grobbel, Sebastian Guenther, Lothar Kreienbrock, Can Imirzalioglu, Uwe Roesler
In November 2015, the first plasmid-encoded colistin resistance gene, mcr-1, was described in animals and in humans in China. Subsequently, a multitude of further studies was performed and quite recently the global spread of mcr-1 as well as the occurrence of a new gene variant, mcr-2, was reported. To obtain an overview of the occurrence of the colistin resistance genes mcr-1 and mcr-2 in German pig farms, a retrospective study, including 436 boot swab and pooled faeces samples collected from 58 pig-fattening farms throughout Germany, was performed...
May 22, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28545876/impact-of-periconceptional-folic-acid-supplementation-on-low-birth-weight-and-small-for-gestational-age-infants-in-china-a-large-prospective-cohort-study
#20
Nan Li, Zhiwen Li, Rongwei Ye, Jianmeng Liu, Aiguo Ren
OBJECTIVES: To explore the effects of maternal folic acid supplementation alone during pregnancy on the incidence of low birth weight (LBW) and small-for-gestational-age (SGA) infant status. STUDY DESIGN: Data were derived from a large population-based cohort study performed in China to evaluate the prevention of neural tube defects with folic acid supplementation. The sample comprised 200 589 singleton live births registered in 2 southern Chinese provinces by mothers for whom detailed information on folic acid use was available...
May 22, 2017: Journal of Pediatrics
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