With the world economic development and the dramatic increase of the global greenhouse gas (GHG) emissions, the issue of sustainable development that is largely related with the environmental deterioration has aroused a world-wide concern. Low-carbon economy, therefore, has gradually shifted from the ideology and advocacy to theoretical researches and practical policy actions throughout the world. As a revolutionary new mode of economic development, a new model of energy consumption and a new way of life for mankind, the low-carbon economy is rooted in the low-carbon consumption (He et al. 2011a). It is an important issue to achieve sustainable development and sustainable consumption by changing the consumption ideology and readjusting consumption patterns of the people's livelihood. The existing research findings demonstrate that the change of consumer behaviour has a more obvious and a far-reaching impact on the emissions reduction than improving the energy efficiency of machines and facilities such as automobiles and buildings (Wang et al. 2010). Unlike industrialized countries such as Europe and the USA, China is still at the post-industrialization stage and the rising well-off consumers tend to consume more goods with energy intensity; the studies show that the consumption activities contribute 30-40% to the environmental degradation (Wang and Jing 2012), the high-carbon consumption tendency, the scarcity of low-carbon awareness and deficiency of social norms are the main obstacles of low-carbon consumption behaviour (Chen and Li 2012). Therefore, it is of great significance to conduct an experimental study on consumers' potential behaviour on purchasing low-carbon agri-food products in China. Literature reviewThe research on the impact of carbon labelling on low-carbon consumption began only a few years ago. Edwards-Jones et al. (2009) Abstract: By adopting the scenario experimental methodology of carbon labelling on agri-food products, coupled with 873 questionnaires collected from six cities in China, we made a statistical analysis of diff erent types of consumers' behaviour on the low-carbon agri-food purchase by using the SPSS software. Th e results indicate that: (1) there are great diff erences of the low-carbon purchasing behaviour between diff erent types of consumers: male groups at young and middle-aged, especially those who are highly educated and better paid in economically developed areas, have strong low-carbon product purchasing powers; (2) consumers' low-carbon purchasing behaviour is highly correlated with their preference for low-carbon products; (3) young consumers and some of the high-income consumers have a weak environmental consciousness and; (4) consumer's perception on government policies and the implementing effi ciency shows a positive moderating eff ect on the consumers' low-carbon purchasing behaviour. Finally, we proposed policy recommendations accordingly based on the fi ndings of this study for further facilitating low-carbon consumption in China.

Results: medium-load exercise lasting six weeks casued the noticing increase of SOD density in serum of lab rats. (P<0.05)and decrease of MDA density in serum(P<0.05). Six weeks of heavy load exercise caused an increase of SOD density in serum (P<0.05), decrease of MDA density in serum(P<0.05); small-load exercice lasting six weeks caused a tendey that SOD and MDA will decrease but there is no subtle differences. 105dB noise can induce behavioral change of lab rat, decrease of SOD density in serum, increase of MDA density that is the product of relieving free radical; After four weeks of small and medium-sized continuous exercise and then two weeks to be stimulated by the 105dB noise, lab rats with small and mediumsized exercise's SOD concentration and MDA concentration have no significant differences comparing with a single movement group. The possible reason is small and medium-load exercise training lasting six weeks can improve the body's antioxidant capacity, immunity, self-regulation, After four weeks of heavy-sized continuous exercise and then two weeks to be stimulated by the 105dB noise, there is a significant decrease of SOD density (P<0.01) and a increase of MDA density (P<0.01). Conclusions: The results of this thesis suggest that small and medium-load exercise training can effectively overcome the noise stress on the body antioxidant, immune suppression, and the middle-load exercise has more effective intervention on the role of noise stress.The preliminary analysis of the effect of standardized community-based management on hypertension in urban and suburban areas of Baotou Objectives: To investigate the effect of standardized hypertensive management (hypertensive management according to the levels of risk factors for cardiovascular diseases) on treatment and control rate, and cardiovascular risk profiles in urban and suburban communities. Methods: We recruited 2653 hypertensives (among them, 1918 were from urban areas, while 735 patients were from suburban areas) registered in the 85 primary hospitals and community clinics located in Baotou from Jun 2009 to Dec 2011. All subjects were divided into low-risk (292 cases), moderate risk (980 cases), and high risk (1381 cases) levels of management according to cardiovascular risks. Specially trained primary medical staff was put in to charge to establish medical files, provide regular health education, monitor blood pressure and other related risk factors, as well as make appropriate treatment protocols for patients. Results: 1. Of all subjects, 2502 subjects (aged 62.9AE7.3) have been followed up for average 25AE1.1 months, among them,1816 from urban, 686 from suburban. 2. The systolic blood pressure (SBP) of all the subjects has decreased by 6.7 mmHg in average, while the diastolic blood pressure (DBP) has decreased by 3.7 mmHg. Compared with urban hypertensive subjects, the SBP and DBP of suburban hypertensives have decreased more significantly (6.6 mmHg, and 3.4 mmHg vs 7.8mmHg, 4.6 mmHg). In average the treatment rate of all the subjects has increa...