LIVIVO - Search results -

Search results

Result 1 - 10 of total 47873

Search options

Article ; Online: Risk analysis of heavy metal concentration in surface waters across the rural-urban interface of the Wen-Rui Tang River, China.

Qu, Liyin / Huang, Hong / Xia, Fang / Liu, Yuanyuan / Dahlgren, Randy A / Zhang, Minghua / Mei, Kun

Environmental pollution (Barking, Essex : 1987)

2018 Volume 237, Page(s) 639–649

Abstract: ... heavy metals (As, Pb, Cd, Cr, Hg, Cu, Zn) from 14 sites spanning the rural-urban interface of the Wen-Rui Tang ...

Abstract	Heavy metal pollution is a major concern in China because of its serious effects on human health. To assess potential human health and ecological risks of heavy metal pollution, concentration data for seven heavy metals (As, Pb, Cd, Cr, Hg, Cu, Zn) from 14 sites spanning the rural-urban interface of the Wen-Rui Tang River watershed in southeast China were collected from 2000 to 2010. The heavy metal pollution index (HPI), hazard index (HI) and carcinogenic risk (CR) metrics were used to assess potential heavy metal risks. Further, we evaluated the uncertainty associated with the risk assessment indices using Monte Carlo analysis. Results indicated that all HPI values were lower than the critical level of 100 suggesting that heavy metal levels posed acceptable ecological risks; however, one site having an industrial point-source input reached levels of 80-97 on several occasions. Heavy metal concentrations fluctuated over time, and the decrease after 2007 is due to increased wastewater collection. The HI suggested low non-carcinogenic risk throughout the study period (HI < 1); however, nine sites showed CR values above the acceptable level of 10
MeSH term(s)	Arsenic/analysis ; China ; Ecology ; Environmental Monitoring ; Environmental Pollution/analysis ; Humans ; Mercury/analysis ; Metals, Heavy/analysis ; Risk Assessment ; Rivers/chemistry ; Water Pollutants, Chemical/analysis
Chemical Substances	Metals, Heavy ; Water Pollutants, Chemical ; Mercury (FXS1BY2PGL) ; Arsenic (N712M78A8G)
Language	English
Publishing date	2018-06
Publishing country	England
Document type	Journal Article
ZDB-ID	280652-6
ISSN	1873-6424 ; 0013-9327 ; 0269-7491
ISSN (online)	1873-6424
ISSN	0013-9327 ; 0269-7491
DOI	10.1016/j.envpol.2018.02.020
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 2599: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

Details ▾
- See ZB MED holdings
- Order with fees

Article: Risk analysis of heavy metal concentration in surface waters across the rural-urban interface of the Wen-Rui Tang River, China

Qu, Liyin / Hong Huang / Fang Xia / Yuanyuan Liu / Randy A. Dahlgren / Minghua Zhang / Kun Mei

Environmental pollution. 2018 June, v. 237

2018

Abstract: ... heavy metals (As, Pb, Cd, Cr, Hg, Cu, Zn) from 14 sites spanning the rural-urban interface of the Wen-Rui Tang ...

Abstract	Heavy metal pollution is a major concern in China because of its serious effects on human health. To assess potential human health and ecological risks of heavy metal pollution, concentration data for seven heavy metals (As, Pb, Cd, Cr, Hg, Cu, Zn) from 14 sites spanning the rural-urban interface of the Wen-Rui Tang River watershed in southeast China were collected from 2000 to 2010. The heavy metal pollution index (HPI), hazard index (HI) and carcinogenic risk (CR) metrics were used to assess potential heavy metal risks. Further, we evaluated the uncertainty associated with the risk assessment indices using Monte Carlo analysis. Results indicated that all HPI values were lower than the critical level of 100 suggesting that heavy metal levels posed acceptable ecological risks; however, one site having an industrial point-source input reached levels of 80–97 on several occasions. Heavy metal concentrations fluctuated over time, and the decrease after 2007 is due to increased wastewater collection. The HI suggested low non-carcinogenic risk throughout the study period (HI < 1); however, nine sites showed CR values above the acceptable level of 10−4 for potential cancer risk from arsenic in the early 2000s. Uncertainty analysis revealed an exposure risk for As at all sites because some CR values exceeded the 10−4 level of concern; levels of Cd near an old industrial area also exceeded the Cd exposure standard (2.6% of CR values > 10−4). While most metrics for human health risk did not exceed critical values for heavy metals, there is still a potential human health risk from chronic exposure to low heavy metal concentrations due to long-term exposure and potential metal interactions. Results of this study inform water pollution remediation and management efforts designed to protect public health in polluted urban area waterways common in rapidly developing regions.
Keywords	Monte Carlo method ; arsenic ; cadmium ; chromium ; chronic exposure ; copper ; heavy metals ; human health ; lead ; mercury ; neoplasms ; public health ; remediation ; risk ; risk assessment ; rivers ; surface water ; uncertainty ; uncertainty analysis ; urban areas ; wastewater ; water pollution ; watersheds ; waterways ; zinc ; China
Language	English
Dates of publication	2018-06
Size	p. 639-649.
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	280652-6
ISSN	1873-6424 ; 0013-9327 ; 0269-7491
ISSN (online)	1873-6424
ISSN	0013-9327 ; 0269-7491
DOI	10.1016/j.envpol.2018.02.020
Database	NAL-Catalogue (AGRICOLA)

In stock of ZB MED Bonn / Germany

Z 4136: Show issues

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Spatial distribution and source apportionment of water pollution in different administrative zones of Wen-Rui-Tang (WRT) river watershed, China.

Yang, Liping / Mei, Kun / Liu, Xingmei / Wu, Laosheng / Zhang, Minghua / Xu, Jianming / Wang, Fan

Environmental science and pollution research international

2013 Volume 20, Issue 8, Page(s) 5341–5352

Abstract: ... Rui-Tang (WRT) river watershed, near the East China Sea. The 12 monitoring sites were divided ...

Abstract	Water quality degradation in river systems has caused great concerns all over the world. Identifying the spatial distribution and sources of water pollutants is the very first step for efficient water quality management. A set of water samples collected bimonthly at 12 monitoring sites in 2009 and 2010 were analyzed to determine the spatial distribution of critical parameters and to apportion the sources of pollutants in Wen-Rui-Tang (WRT) river watershed, near the East China Sea. The 12 monitoring sites were divided into three administrative zones of urban, suburban, and rural zones considering differences in land use and population density. Multivariate statistical methods [one-way analysis of variance, principal component analysis (PCA), and absolute principal component score-multiple linear regression (APCS-MLR) methods] were used to investigate the spatial distribution of water quality and to apportion the pollution sources. Results showed that most water quality parameters had no significant difference between the urban and suburban zones, whereas these two zones showed worse water quality than the rural zone. Based on PCA and APCS-MLR analysis, urban domestic sewage and commercial/service pollution, suburban domestic sewage along with fluorine point source pollution, and agricultural nonpoint source pollution with rural domestic sewage pollution were identified to the main pollution sources in urban, suburban, and rural zones, respectively. Understanding the water pollution characteristics of different administrative zones could put insights into effective water management policy-making especially in the area across various administrative zones.
MeSH term(s)	Analysis of Variance ; Arsenic/analysis ; Biological Oxygen Demand Analysis ; China ; Copper/analysis ; Environmental Monitoring ; Fluorine/analysis ; Linear Models ; Nitrogen/analysis ; Oxygen/analysis ; Principal Component Analysis ; Quaternary Ammonium Compounds/analysis ; Rivers ; Water Pollution/analysis ; Water Supply ; Zinc/analysis
Chemical Substances	Quaternary Ammonium Compounds ; Fluorine (284SYP0193) ; Copper (789U1901C5) ; Zinc (J41CSQ7QDS) ; Arsenic (N712M78A8G) ; Nitrogen (N762921K75) ; Oxygen (S88TT14065)
Language	English
Publishing date	2013-02-13
Publishing country	Germany
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1178791-0
ISSN	1614-7499 ; 0944-1344
ISSN (online)	1614-7499
ISSN	0944-1344
DOI	10.1007/s11356-013-1536-x
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

In stock of ZB MED Bonn / Germany

Z 5915: Show issues

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾

Article: Spatial distribution and source apportionment of water pollution in different administrative zones of Wen-Rui-Tang (WRT) river watershed, China

Yang, Liping / Mei, Kun / Liu, Xingmei / Wu, Laosheng / Zhang, Minghua / Xu, Jianming / Wang, Fan

Environmental science and pollution research. 2013 Aug., v. 20, no. 8

2013

Abstract: ... Rui-Tang (WRT) river watershed, near the East China Sea. The 12 monitoring sites were divided ...

Abstract	Water quality degradation in river systems has caused great concerns all over the world. Identifying the spatial distribution and sources of water pollutants is the very first step for efficient water quality management. A set of water samples collected bimonthly at 12 monitoring sites in 2009 and 2010 were analyzed to determine the spatial distribution of critical parameters and to apportion the sources of pollutants in Wen-Rui-Tang (WRT) river watershed, near the East China Sea. The 12 monitoring sites were divided into three administrative zones of urban, suburban, and rural zones considering differences in land use and population density. Multivariate statistical methods [one-way analysis of variance, principal component analysis (PCA), and absolute principal component score—multiple linear regression (APCS-MLR) methods] were used to investigate the spatial distribution of water quality and to apportion the pollution sources. Results showed that most water quality parameters had no significant difference between the urban and suburban zones, whereas these two zones showed worse water quality than the rural zone. Based on PCA and APCS-MLR analysis, urban domestic sewage and commercial/service pollution, suburban domestic sewage along with fluorine point source pollution, and agricultural nonpoint source pollution with rural domestic sewage pollution were identified to the main pollution sources in urban, suburban, and rural zones, respectively. Understanding the water pollution characteristics of different administrative zones could put insights into effective water management policy-making especially in the area across various administrative zones.
Keywords	analysis of variance ; fluorine ; land use ; linear models ; nonpoint source pollution ; point source pollution ; pollutants ; population density ; principal component analysis ; rivers ; sewage ; water distribution ; water pollution ; water quality ; watersheds ; China ; East China Sea
Language	English
Dates of publication	2013-08
Size	p. 5341-5352.
Publishing place	Springer-Verlag
Document type	Article
ZDB-ID	1178791-0
ISSN	1614-7499 ; 0944-1344
ISSN (online)	1614-7499
ISSN	0944-1344
DOI	10.1007/s11356-013-1536-x
Database	NAL-Catalogue (AGRICOLA)

In stock of ZB MED Bonn / Germany

Z 5915: Show issues

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- See ZB MED holdings
- Order with fees

Book ; Online: Advanced Energetic Materials: Testing and Modeling

Liu, Rui / Wen, Yushi / Pang, Weiqiang

2023

Keywords	Research & information: general ; Physics ; 5-amino-1H-tetrazole ; tear gas mixture ; combustible agent ; combustion pyrolysis characteristics ; dynamics research ; aluminum ; oxidation process ; reaction mechanism ; modification method ; development trend ; N-oxides ; cyclization reaction ; synthesis ; detonation performance ; insensitive munition ; JEOL ; cook-off ; ignition characteristic ; Ni/Al energetic structural materials ; thermal reaction ; reaction kinetic model ; two reaction stages ; DNTF ; CL-20 ; nanoindentation ; explosive crystals ; micromechanical properties ; composite explosives ; microfluidic ; laser ignition ; RDX@FOX-7 ; thermal analysis ; micro-Raman ; high-energy permanent magnets ; (Sm, Zr)(Co ; Cu ; Fe)z alloys ; as-cast state ; coherent 1:5 phase ; micromagnetic simulation ; sandwich model ; MuMax3 ; high-energy materials genome ; artificial neural networks ; burning rate ; multifactor computational models ; 3,4-Bis(3-nitrofurazan-4-yl) furozan (DNTF) ; crystallization ; energetic binder GAP ; mechanical sensitivity ; molecular dynamics simulation ; safety engineering ; fragmentation impact ; high-energy HTPB propellant ; shock initiation ; equation of state ; numerical simulation ; friction sensitivity ; ignition ; cast PBX ; mesoscopic model ; mitigation structure ; pressure relief area ; pressure relief effect ; low-melting crystal ; n/a
Language	English
Size	1 electronic resource (226 pages)
Publisher	MDPI - Multidisciplinary Digital Publishing Institute
Publishing place	Basel
Document type	Book ; Online
Note	English
HBZ-ID	HT030645548
ISBN	9783036594576 ; 3036594574
Database	ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article: [A multicenter randomized phase II trial of domestic product of rhG-CSF(Rui Xue Xin) in preventing leukopenia caused by chemotherapy in patients with lung cancer].

Zhou, Q / Qiu, M / Hou, M / Ren, L / Li, L / Yi, C / Yang, Y / Liu, L / Li, Z / Xu, Y / Luo, D / Wang, Q / Zhang, L / Lin, J / Shi, J

Zhongguo fei ai za zhi = Chinese journal of lung cancer

2000 Volume 3, Issue 3, Page(s) 161–165

Abstract: Background: To evaluate the effect and toxicity of the domestic product of rhG-CSF (Rui Xue Xin ... plus injection of Rui Xue Xin) , and the second cycle was a control cycle (chemotherapy alone) in AB ... the side effect of Rui Xue Xin were observed and compared between the trial cycle and control cycle.: Results ...

Abstract	Background: To evaluate the effect and toxicity of the domestic product of rhG-CSF (Rui Xue Xin) in preventing leukopenia caused by chemotherapy in patients with lung cancer. Methods: 67 patients in multicenter were randomly devided into AB group and BA group. The first cycle was a trial cycle (chemotherapy plus injection of Rui Xue Xin) , and the second cycle was a control cycle (chemotherapy alone) in AB group. On the contrast , the first cycle was a control cycle , and the second cycle was a trial cycle in BA group. The changes of white blood cell (WBC) and absolute neutrophil counts (ANC) , and the side effect of Rui Xue Xin were observed and compared between the trial cycle and control cycle. Results: Of the 67 patients , 6 cases were out of the trial because of patient compliance , and the another one case due to fever , and the other 61 cases could be used to analyze and to evaluate the effects and toxicity of Rui Xue Xin. The duration of leukopenia and neutropenia in cycle A was significantly shorter than that in cycle B ( P < 0. 01) . The nadirs of WBC and ANC following chemotherapy were remarkably higher in cycle A than those in cycle B ( P < 0. 01) . The incidence of chemotherapy delay due to WBC < 4. 0 109 /L on the 21st day after chemotherapy in cycle A was also significantly lower than that in cycle B ( P < 0. 01) . The total rate of side effects of Rui Xue Xin was 26. 2 % , including pain and scleroma on the injection sites , weakness , fever. But , all of them were mild and didn't need to give any treatment. Conclusions:* The results demonstrate that Rui Xue Xin is able to reduce the degree of leukopenia and neutropenia , and to shorten the duration of leukopenia and neutropenia caused by chemotherapy in patients with lung cancer. The toxicity is also slight.
Language	Chinese
Publishing date	2000-06-20
Publishing country	China
Document type	English Abstract ; Journal Article
ZDB-ID	2438672-8
ISSN	1999-6187 ; 1009-3419
ISSN (online)	1999-6187
ISSN	1009-3419
DOI	10.3779/j.issn.1009-3419.2000.03.01
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Book ; Online: Magnetic Flux Ropes: From the Sun to the Earth and Beyond

Liu, Rui / Zhang, Jie / Wang, Yuming / Song, Hongqiang

2020

Keywords	Science: general issues ; Astronomy, space & time ; Sun ; magnetic flux rope ; magnetic twist ; coronal mass ejection ; filament eruption ; magnetic cloud
Size	1 electronic resource (126 pages)
Publisher	Frontiers Media SA
Document type	Book ; Online
Note	English ; Open Access
HBZ-ID	HT021230684
ISBN	9782889663361 ; 2889663361
Database	ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Preschool teachers' predicaments of teaching online and strategies employed during the COVID-19 pandemic: A literature review.

Liu, Zi Rui

Work (Reading, Mass.)

2024

Abstract: Background: The COVID-19 pandemic accelerated the transition to remote preschool education, highlighting the crucial role of preschool teachers in navigating pedagogical transformations, adapting to technology, and addressing the challenges of distance ... ...

Abstract	Background: The COVID-19 pandemic accelerated the transition to remote preschool education, highlighting the crucial role of preschool teachers in navigating pedagogical transformations, adapting to technology, and addressing the challenges of distance learning. Objective: This study delved into the intricate challenges confronted by educators specializing in early childhood education within the realm of remote instruction during the COVID-19 pandemic. Additionally, it scrutinized a spectrum of tactics and interventions implemented to overcome the challenges, presenting nuanced insights to enhance the effectiveness of online pedagogy. Methods: Conducting a systematic literature review, this study comprehensively analysed academic sources to synthesize challenges faced by preschool teachers and their adaptive strategies during the transition to remote instruction induced by the COVID-19. The investigation focused on online teaching strategies, COVID-19 implications, and the broader landscape of remote learning. Results: The review illuminated intricate challenges, encompassing technological constraints, pedagogical adjustments, and psychological adaptations. These challenges compelled the deployment of a diverse range of strategies, underscoring educators' resilience and resourcefulness in maintaining vibrant online teaching and learning ecosystems. Conclusion: This study offers a valuable compendium of insights, providing a comprehensive view of the evolving landscape of remote pedagogy. By fostering a nuanced understanding of the challenges and strategies, educators, administrators, and policymakers can collaboratively devise informed interventions. This collaborative effort optimizes online teaching practices, fostering enriched learning outcomes within the digital epoch.
Language	English
Publishing date	2024-01-18
Publishing country	Netherlands
Document type	Journal Article ; Review
ZDB-ID	1394194-x
ISSN	1875-9270 ; 1051-9815
ISSN (online)	1875-9270
ISSN	1051-9815
DOI	10.3233/WOR-230321
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 4810: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: The construction of the inheritance performance evaluation system for inheritors of intangible cultural heritage of traditional sports

Rui Liu

SN Applied Sciences, Vol 5, Iss 6, Pp 1-

2023 Volume 14

Abstract: Abstract This paper shows the construction of a performance evaluation system for the inheritance of traditional sports intangible cultural inheritors. In order to ensure the scientific nature and rationality of the indicators, a theoretical model of ... ...

Abstract	Abstract This paper shows the construction of a performance evaluation system for the inheritance of traditional sports intangible cultural inheritors. In order to ensure the scientific nature and rationality of the indicators, a theoretical model of performance evaluation content is first established. Then, based on the theoretical model, the preliminary selection of indicators is completed, and then the expert screening of indicators is further completed by Delphi method, and the weights of each indicator are established through analytic hierarchy. Finally, in order to verify the application effect of the indicator system in practice, this study conducts an empirical study on the system from the perspective of regional performance evaluation. The results show that the discriminating power and applicability of the evaluation indicator are effective, and the evaluation system has a very distinct epochal and people-centered character. In conclusion, the construction of this evaluation system is of great significance to improve the scientific and standardized level of evaluation of Intangible cultural heritage inheritors.
Keywords	Intangible cultural heritage (ICH) ; Traditional sports ; Indicators ; Evaluation ; Performance ; Science ; Q ; Technology ; T
Subject code	650
Language	English
Publishing date	2023-05-01T00:00:00Z
Publisher	Springer
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Optimization of Conditions of

Wang, Rui / Rao, Chaolong / Liu, Qiuyan / Liu, Xiong

ACS omega

2024 Volume 9, Issue 9, Page(s) 10992–11004

Abstract: ... ...

Abstract	Zanthoxylum
Language	English
Publishing date	2024-02-21
Publishing country	United States
Document type	Journal Article
ISSN	2470-1343
ISSN (online)	2470-1343
DOI	10.1021/acsomega.4c00074
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED

Full text online

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

Full text online

More links

Kategorien

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

Inter-library loan at ZB MED