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This study was planned to determine the amount of input energy, output energy, energy-use efficiency and energy productivity for different tillage treatments. Energy equivalent was used in the study to converting energy input. Trial results showed that there were significant differences (P<0.05) among the three treatments in terms of energy indices and for crop yield. It was found that fertilizers...
Objective: To discuss the effects of Chrysan them um m orif olium on mRNA expressions of p53 and Bax in the Human Umbilical Vein Cells(HUVEC) under Induction and Cultivation of high glucose. Methods: Make four groups of the HUVEC as normal cells group, normal glucose - only deal cells group high glucose -only deal cells group and Chrysanthemum morifolium + high glucose acting cells group. After 18∼24h,...
To observe effects of trigonella foenum greacum. L Saponin (TFGs) on the proliferation of the interstitial fibroblast of rats' myocardium (CFs), and the expression of U II-induced TGF-β1 and CTGF mRNA. The interstitial fibroblasts of rats' myocardium were cultivated in vitro and identified,and were treated with TFGs whose concentrations is 0,25,50,100 and 200 mg.L−1 separately. The untreated cells...
The inhibition activity to human lung cancer cells A549 of five ITCs were tested by MTT. The relationships between the electronic structure and anticancer activity were analyzed by the parameters of the geometry, Mulliken populations and the atomic frontier electron densities, which were optimized by DMol3 module. The results showed that carbon atom of the ITCs in the group of N=C=S was the main electrophonic...
Nearly 40 hereditary disorders in humans result from an increase in the number of copies of simple DNA repeats in genomic DNA. DNA repeats expansion mutations are dynamic and ongoing within tissues and across generations, leading to disease. These DNA repeats seem to be predisposed to expansion because they have unusual structural features, such as hairpins, slipped-strand DNA, DNA unwinding elements,...
The occurrence and fate of organotins compounds in drinking water plant in Chongqing of southern China was investigated for the first time. Water samples were extracted by solid phase micro-extraction (SPME) and measured by gas chromatograph (GC) with mass spectrum (MS). Results showed the presence of organotin pollution in drinking water plant in Chongqing and most of organotins was MBT with the...
DNA conformational change and breakage induced by Cr(VI) and curcumin in the present of H2O2 were characterized by the atomic force microscopy. Incubation of DNA with curcumin and Cr(VI) in the presence of H2O2 caused DNA double-strand breaks significantly. Cr(VI) and H2O2 also breaked mildly DNA double-strands. On the basis of these results, we think hydroxyl radicals and reactive oxygen species...
Conditions of the extraction of polysaccharides from protocorms of Dendrobium candidumwere optimized by orthogonal experiment. The results showed that the optimum technology of isolation is to extract about 3 times and 0.5 hours each time in 30 times water at 100°C, the ways to break cell is high-speed homogenate. After 24h, the mRNA expressions of NF-κB was detected by reverse transcription-polymerase...
The present study examined the recent environmental history of the Poyang Lake, located in the middle Yangtze River region, central China. High sedimentation rates, revealed by 210Pb measurement in different periods of the lake, ranged from 0.035 to 1.08cm/year. The results indicate that the change of sedimentation rate is correlative to the intensity of human activities. In addition, pressures from...
Based on RS, GIS and statistical analysis, this paper discusses the relationship of rural settlement spatial distribution and topography, landform, soil erosion, economic development, as well as achieves the classification of population pressure in Huanren County in Eastean Mountain Areas. The results show that the distribution pattern of rural settlement is affected obviously by elevation, slope,...
Airborne microorganisms in four different units (rack chamber, aeration tank, sludge thickening tank and sludge dewatering facility) in certain wastewater treatment plant in Beijing were chosen as research object and their distribution characteristics were studied. Results showed that the concentrations of heterotrophic bacteria and fungi in different units had significant differences. The aeration...
The post-disaster reconstruction should be combined with Human inhabitation and settlement environment construction, which can achieve sustainable development strategy, promote economic growth, make the social development be harmonious with the environmental protection. The post-disaster reconstruction of Longan town, Pingwu County in Sichuan province has combined supporting systems of infrastructure,...
this article takes Qingkou village in Yuanyang County as the object of study. Through researching on the site selection, ecological landscaping and materials in residence, we can summarize the health model of Hani settlement and provide a good suggestion for the construction of other minority villages.
land use is the main human disturbance to accelerate the soil erosion. According to the land use types of the Hengduan mountainous region in the Eastern Tibet, this paper discussed the influence of the land use on the soil erosion type, erosion intensity and erosion spatial distribution. It indicated that the soil erosion types changed accordingly with land use changes. Freeze-thaw erosion and water...
Objective In order to observe the effect of recombinant human granulocyte/macrophage colony-stimulating factor (rhGM-CSF) gel for external use on animal model of burn. Methods rhGM-CSF gel for external use was prepared, and its quality control and stability at different temperatures were investigated extensively based on methods describe in China Pharmacopeia (Edition 2005), including appearance,...
China is a mountainous country. According to the statistics, areas with an elevation of more than 500 meters account for 74.8% of the total land area in China. They are mainly mountains, hills and plateaus, namely mountains in a broad sense, which account for 69% nationwide. Mountain tourism resource is an important part of natural tourism resources in China. Our country now boasts 208 key national...
This paper makes full use of Gaodi Xie's equivalent value per unit area of Chinese ecosystem services. After revising by per unit area value of food products and vegetation index (NDVI), the final equivalent value along Bohai Bay is calculated. And then the temporal and spatial comparison of ecosystem services among 1995, 2000 and 2008 has been done at 1km grid cell. The results turn out that: in...
Marine cultural landscape is one of the important types of the new world heritage- cultural landscapes. Based on the Classification methods of cultural landscapes, considering the spatio-temporal character and regional features of marine historical cultural, marine cultural landscapes were classified 6 types. It included relics and ruins landscape, Historic site landscape, Historic vernacular landscape,...
To explore the association between Insertion/Deletion polymorphism of the angiotensin converting enzyme(ACE) gene and the effects of HiHiLo (living at high altitude-exercise at high altitude-training at low altitude) training, Seventy-one healthy men of Han nationality in northern China underwent HiHiLo training for 4 weeks. Training programme was as follows: exposure in hypoxic environment (14.5%∼14...
In order to protect China's environment, especially the aqua resources and environment, to promote the trait-centered quality and to construct a sustainable development society, it is necessarily for us to analyzing the awareness of aqua resources and environment. For that, the questionnaire research is carefully put up, choosing the primary school and high school students in Nanjing city, Jiangsu...
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