Search results for "CHINA"
showing 10 items of 502 documents
A multi-criteria evaluation system for arable land resource assessment
2020
This study proposed a multi-criteria evaluation system for arable land resources by combining the soil integrated fertility index (IFI) with a soil cleanliness index (based on heavy metals and metalloid content). A total of 16 typical arable land units in Chongming District, China, were evaluated using the proposed evaluation system based on 104 collected soil samples in 16 towns. The comprehensive soil evaluation scores of arable lands in 16 towns were in the range of 90.7 to 99.2 with a mean of 96.2, indicating that the arable land in all 16 towns was at the level of excellent (≥ 90.0). Lower cleanliness indices had a significant impact on the final evaluation score. In comparison with si…
Radical Formation by Fine Particulate Matter Associated with Highly Oxygenated Molecules
2019
Highly oxygenated molecules (HOMs) play an important role in the formation and evolution of secondary organic aerosols (SOA). However, the abundance of HOMs in different environments and their relation to the oxidative potential of fine particulate matter (PM) are largely unknown. Here, we investigated the relative HOM abundance and radical yield of laboratory-generated SOA and fine PM in ambient air ranging from remote forest areas to highly polluted megacities. By electron paramagnetic resonance and mass spectrometric investigations, we found that the relative abundance of HOMs, especially the dimeric and low-volatility types, in ambient fine PM was positively correlated with the formatio…
The eighth component of human complement: molecular basis of C8A (C81) polymorphism.
1995
Using an exon-specific polymerase chain reaction (PCR) followed by direct DNA sequence analysis we have analyzed the polymorphism of the alpha-chain of the eighth component of human complement (C8) at the DNA level. We found that two common alleles, C8A*A and C8A*B, are characterized by the substitution of a single amino acid (Gln to Lys), which is caused by a point mutation of a single nucleotide (C to A) in exon 3 at position 187 of the mature C8 alpha cDNA sequence. Based on this mutation, an allele-specific PCR was designed detecting the two alleles of C8A. We applied this method to type the C8A polymorphism using DNA samples from a Chinese Han population. The comparison with the data o…
Sustainable Development and Energy Policy: Actual CO2 Emissions in the European Union in the Years 1997–2017, Considering Trade with China and the USA
2020
One of the ways of implementing the concept of sustainable development by the European Union is their energy policy. Among the three main objectives in its energy policy is a reduction in greenhouse gases (mainly CO2) emissions to at least 20% below 1990 levels by 2020. This study aims to assess the impact of international trade on actual CO2 emission in the EU, China and the USA for the period 1997–2017. For this aim, the Actual-Open CO2 emissions were calculated, taking into account the transfer of CO2 in exported products and services from China and the USA to the EU and vice versa. It is concluded that the actual CO2 emissions in China, the USA, and the EU differed from the traditionall…
HCHs and DDTs in sediment-dwelling animals from the Yangtze Estuary, China
2005
HCHs and DDTs in sediment-dwelling animals including mollusks and crabs from the Yangtze Estuary were deter- mined by GC-ECD. Levels of t-HCH were in the range of 1.2-5.5 ng g � 1 and averaged 3.5 ng g � 1 in mollusks, while t-DDT concentrations ranged from 26.0 to 68.8 ng g � 1 , with a mean of 34.5 ng g � 1 . In crabs t-HCH concentrations var- ied from 2.0 to 25.7 ng g � 1 and averaged 13.8 ng g � 1 , whereas the concentrations of t-DDT were in the range of 1.5- 24.8 ng g � 1 with a mean value of 5.9 ng g � 1 . The HCHs and DDTs levels depend on geographical position and sources, showing the high levels at fresh water area in the estuary, such as XP, CM and LHK sites, and lower at brackis…
On Imported and Domestic Human Papillomavirus Vaccines: Cognition, Attitude, and Willingness to Pay in Chinese Medical Students
2022
This study aimed to analyze the cognition, attitude, and willingness to pay (WTP) for imported and domestic human papillomavirus (HPV) vaccines in Chinese medical students.MethodsMedical students in Eastern, Central and Western China were investigated. We used the HPV cognitive list to measure the cognition of participants and implemented contingent valuation method (CVM) to value WTP. Tobit model was used to analyze the factors associated with WTP.ResultsThe participants' average score for the 21 cognitive questions was 13.05 (±5.09). Among the participants, 60.82 and 88.01% reported that they would wish to be vaccinated and support the partners to be vaccinated. In addition, 92.54% (670) …
Comparison of the greenhouse gas emissions of a high-rise residential building assessed with different national LCA approaches– IEA EBC Annex 72
2020
Introduction: The international research project IEA EBC Annex 72 investigates the life cycle related environmental impacts caused by buildings. The project aims inter alia to harmonise LCA approaches on buildings. Methods: To identify major commonalities and discrepancies among national LCA approaches, reference buildings were defined to present and compare the national approaches. A residential high-rise building located in Tianjin, China, was selected as one of the reference buildings. The main construction elements are reinforced concrete shear walls, beams and floor slabs. The building has an energy reference area of 4566 m2 and an operational heating energy demand of 250 MJ/m2a. An ex…
Molecular biology, China and the West
2000
More than 15 years ago, in November 1985, I travelled to China for the first time. I joined a symposium on developmental biology in the Shanghai Institute of Cell Biology (CBI), organised by the Chinese Academy of Sciences and the Max‐Planck‐Gesellschaft in Germany. The symposium was meant to provide perspectives for the future of the Max Planck Guest Laboratory, just founded in the CBI. When I attended, I did not anticipate that my visit to Shanghai would initiate a long‐term commitment to China. I did not even expect to return to China in the near future. But early in 1987, my colleague Uli Schwarz from the Max Planck Institute of Developmental Biology in Tubingen, who was and still is in…
Drivers and Restraints in Adopting Information Technology in Firms in E-Business: A Chinese Perspective
2014
This paper studies factors in information technology adoption, on both firm level and individual level, to help further understand organizational innovativeness. Especially, business-strategic and tactical factors affecting the adoption, and particular assimilation-related factors, are studied among interactive firms, also the ways the factors are related. This paper adds to the earlier literature in recognizing and combining factors behind reasoning for and against adopting new technology innovations, on various reasoning-levels. Literature, so far, has been scattered among those, while adoption and assimilation in general have been well modelled. We need to better understand what is signi…
Taxonomic Identity, Geographic Distribution, and Commercial Exploitation of the Culinary-Medicinal Mushroom Pleurotus nebrodensis (Basidiomycetes)
2016
An updated overview of the outcome of studies conducted on the culinary-medicinal mushroom Pleurotus nebrodensis is presented by placing emphasis on the clarification of the taxonomic identity of P. nebrodensis and other related taxa possessing entirely white to cream basidiomes, which grow in association with different plants of the family Apiaceae. Cultivation techniques, quality of the product sold and sales price, as well as nutritional and medicinal aspects are discussed. Taking also into consideration the high economic importance of P. nebrodensis, it is essential to proceed with the verification of the commercial strains currently available in the international market under the name …