The evaluation of urban residents' life quality in Beijing, China based on factor analysis

Sun, Jingyi; Li, Xiaojuan; Sun, Yonghua; Li, Yaqing

doi:10.1109/geoinformatics.2011.5980929

Cited by 6 publications

(7 citation statements)

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“…Tobacco leaves have a variety of chemical components, many of which are bioactive [1,2,3]. Cembranoids are macrocyclic diterpenes comprising four isoprene units bonded head-to-tail, and are natural products with a parent skeleton consisting of a 14-membered ring, three symmetrically distributed methyl groups and one isopropyl group; the cembranoid parent nucleus has a symmetry plane with an axis passing through C-1 and C-8 [4,5]. Cembranoid diterpenes are mainly present in the plants belonging to the genera Nicotiana and Pinus , and marine organisms (e.g., soft coral) [6], and they play a role in the continuous cropping obstacles of tobacco plants and the competitive survival of corals [4,7].…”

Section: Introductionmentioning

confidence: 99%

A Review on Bioactivities of Tobacco Cembranoid Diterpenes

Ning

Liu

et al. 2019

Biomolecules

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Cembranoids are carbocyclic diterpenes comprising four isoprene units and are natural products with a parent skeleton consisting of a 14-membered ring. They have gained wide interest in recent years and are a major hotspot in the research of natural product chemistry. Since 1962, various tobacco cembranoid diterpenes have been identified. This review systematically discusses and summarises the excellent antimicrobial, insecticidal, cytotoxic and neuroprotective activities of tobacco cembranoid diterpenes. These compounds show potential to be developed as botanical fungicides, cytotoxic drugs and drugs for the treatment of human immunodeficiency virus, Alzheimer’s disease, Parkinson’s disease, and other neurodegenerative diseases. However, there are relatively few studies on the structure–activity relationship (SAR) of tobacco cembranoid diterpenes. Therefore, future studies should focus on their structural modification, SAR and biogenic relationships.

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Section: Introductionmentioning

confidence: 99%

A Review on Bioactivities of Tobacco Cembranoid Diterpenes

Ning

Liu

et al. 2019

Biomolecules

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“…This focus has to do with the growing gap between small cars and their bigger counterparts regarding safety, quality, and comfort. Although we have seen a shift of fleet portfolios in Europe and Japan toward smaller car sizes as a result of various industrial policies, rising fuel prices, and changing consumer attitudes, the Chinese market still welcomes larger cars (Sun, 2011). Chinese vehicle fleet fuel consumption is increasing, due to growing vehicle size and weight (Z.…”

Section: Resultsmentioning

confidence: 99%

Co-Evolution in Relation to Small Cars and Sustainability in China

Kolk

Tsang

2016

Business & Society

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This article explores how the institutional context, including central and local governments, has co-evolved with business in relation to small cars and sustainability. This issue is very relevant for business and society in view of the environmental implications of the rapidly growing vehicle fleet in China, the economic importance attached to this pillar industry by the government, and citizen interest in owning and driving increasingly larger cars. The interactions between different levels of government, and with business (both domestic and foreign-invested) in countries with a large role for the state is a novel area of study in the business-society area and a complex one given the multitude of objectives and interests involved in industry competitiveness, economic development, energy security, and sustainability. The article shows that the central government has adopted policies to further the production and use of small cars, which it perceives as serving environmental, economic, and social goals. Concurrently, however, many local governments imposed restrictions on small cars and have, implicitly or explicitly, favored larger cars. There seems to be a clear linkage to municipal ownership of those domestic automobile companies which, via joint ventures with foreign firms, focused more on larger cars. By adopting a co-evolutionary approach focused on macro-level interactions, the case helps to shed some more light on concrete sustainability challenges, and broader government–business interactions in a highly institutionalized setting, contributing insights on issues that have remained underexposed in business and society research.

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“…However, for those without this structural feature, low or no cytotoxicity activity is expected [27,28,29,30], and these compounds thus may be further explored for their antimicrobial potential. Henrin A ( 1 ) is an ent -kaurane diterpene belonging to this category, and our assay determined that this compound was not toxic against a panel of human cell lines but indeed displayed anti-HIV activity.…”

Section: Resultsmentioning

confidence: 99%

“…Henrin A ( 1 ) is an ent -kaurane diterpene belonging to this category, and our assay determined that this compound was not toxic against a panel of human cell lines but indeed displayed anti-HIV activity. More than 1000 different types of ent -kaurane compounds have been discovered from plants [30]. These diterpenes can be a valuable source for the discovery of antiviral agents by testing the natural or modified compounds without an α, β-unsaturated ketone group.…”

Section: Resultsmentioning

confidence: 99%

Henrin A: A New Anti-HIV Ent-Kaurane Diterpene from Pteris henryi

Wang

Zhang

et al. 2015

IJMS

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Henrin A (1), a new ent-kaurane diterpene, was isolated from the leaves of Pteris henryi. The chemical structure was elucidated by analysis of the spectroscopic data including one-dimensional (1D) and two-dimensional (2D) NMR spectra, and was further confirmed by X-ray crystallographic analysis. The compound was evaluated for its biological activities against a panel of cancer cell lines, dental bacterial biofilm formation, and HIV. It displayed anti-HIV potential with an IC50 value of 9.1 µM (SI = 12.2).

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The evaluation of urban residents' life quality in Beijing, China based on factor analysis

Cited by 6 publications

References 0 publications

A Review on Bioactivities of Tobacco Cembranoid Diterpenes

A Review on Bioactivities of Tobacco Cembranoid Diterpenes

Co-Evolution in Relation to Small Cars and Sustainability in China

Henrin A: A New Anti-HIV Ent-Kaurane Diterpene from Pteris henryi

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