1,099 research outputs found
Perspectives of Social-Ecological Transformation
The emphasis of Socialist Ecological Civilization in the 18th congress of CPC
and the proposal of "Green Development" in the "Thirteen Five Year" Plan both
indicate that Ecological Civilization Construction has been raised to an
unprecedented height in China. Based on the theory of Social-Ecological
Transformation, this article elaborates if or to what extent China’s
Ecological Civilization Construction goes beyond the logic of capitalist
imperative, if environmental benefits still succumbs to the current political
and economic structures. It concludes that as the newest sustainable
discourse, Ecological Civilization has great influence on the formation and
enforcement of environmental policy in China. As a comprehensive and
systematic experiment concerning the change of mode of living and production,
divergent interpretations of Ecological Civilization Construction still exist
among officials in multi-level governance, which leads to different
preferences when implementing Ecological Civilization goals.The orientation of
growth in multilevel governments should be weakened and pioneer of change with
emancipatory horizon or ecological forms of production and living should be
encouraged
Coping with low data availability for social media crisis message categorisation
During crisis situations, social media allows people to quickly share
information, including messages requesting help. This can be valuable to
emergency responders, who need to categorise and prioritise these messages
based on the type of assistance being requested. However, the high volume of
messages makes it difficult to filter and prioritise them without the use of
computational techniques. Fully supervised filtering techniques for crisis
message categorisation typically require a large amount of annotated training
data, but this can be difficult to obtain during an ongoing crisis and is
expensive in terms of time and labour to create.
This thesis focuses on addressing the challenge of low data availability when
categorising crisis messages for emergency response. It first presents domain
adaptation as a solution for this problem, which involves learning a
categorisation model from annotated data from past crisis events (source
domain) and adapting it to categorise messages from an ongoing crisis event
(target domain). In many-to-many adaptation, where the model is trained on
multiple past events and adapted to multiple ongoing events, a multi-task
learning approach is proposed using pre-trained language models. This approach
outperforms baselines and an ensemble approach further improves performance..
DETERMINANTS OF BANK CAPITAL: EVIDENCE FROM THE U.S.
This paper analyses factors that affect bank capital. We use a sample of U.S. banks over the period 1996 to 2012. According to bank size, we separate the whole sample into small banks, medium banks and large banks. These three groups have different abilities to manage risks and access capital markets. To see the impact of the recent financial crisis, we further separate the whole sample into two subsamples: 1996 to 2006 and 2007 to 2012. Making use of an advanced estimation method (GMM), we find that bank capital is influenced by risk, profitability, deposits, loan loss provision, and size
A Study on the Construction Model of Ancient Vietnamese Capital Cities
China’s urban planning theories originated from the ‘harmonious relationship between humans and nature’ perspective of ancient environmental culture, which was disseminated through the process of ‘Mutual Understanding of Civilisations’. Vietnam is geographically adjacent to China, and has the closest relationship with China in the Southeast Asian region. Numerous cultural artefacts and symbolic elements dating back to the Stone Age have demonstrated the cultural origins of the two countries. The northern region of Vietnam has been under the control of the Chinese Feudal Dynasties from the third century B.C.E. until the early tenth century. After gaining independence, Vietnam continued to have a suzerain-vassal connection with China for about nine centuries. Vietnam is a significant research subject in the "Han Cultural Circle" because of the aforementioned variables that have contributed to a high degree of cultural resemblance between China and Vietnam. In order to determine the genetic relationship between the original mode and localised innovation from the perspective of urban planning history, this study will compare and contrast the construction models of ancient Vietnamese and Chinese capital cities. Additionally, it will show how Chinese urban planning theories have influenced Southeast Asian urban construction activities, either directly or indirectly
Group Search Optimizer for the Mobile Location Management Problem
We propose a diversity-guided group search optimizer-based approach for solving the location management problem in mobile computing. The location management problem, which is to find the optimal network configurations of management under the mobile computing environment, is considered here as an optimization problem. The proposed diversity-guided group search optimizer algorithm is realized with the aid of diversity operator, which helps alleviate the premature convergence problem of group search optimizer algorithm, a successful optimization algorithm inspired by the animal behavior. To address the location management problem, diversity-guided group search optimizer algorithm is exploited to optimize network configurations of management by minimizing the sum of location update cost and location paging cost. Experimental results illustrate the effectiveness of the proposed approach
Aryl piperazine suppresses cataractogenesis in a diabetic rat model via Nrf2/HO-1 signaling pathway
Purpose: To investigate the inhibitory potential of aryl piperazine on cataract formation in diabetic rats, and the underlying mechanism of action. Methods: Sprague-Dawley rats (7-week-old) were divided into 7 groups: control rats, untreated diabetic rats, and five aryl piperazine treatment groups given the drug at doses of 1, 2, 5, 10 and 15 mg/kg. Diabetes was induced in the rats via injection of streptozocin (STZ) in citrate buffer at a dose of 65 mg/kg. An ophthalmoscope was used to evaluate cataract formation, while GlucoLeader was used for the measurement of blood glucose level. Results: Aryl piperazine treatment significantly reduced blood glucose level from 6 to 12 weeks following administration of STZ, and prevented cataractogenesis in the diabetic rats (p < 0.05). Cataract score in the diabetic rats was also significantly decreased by aryl piperazine (p < 0.01). Aryl piperazine exposure reversed STZ-mediated decreases in antioxidant capacity (AOC) and glutathione (GSH) levels, enhanced glutathione peroxidase (GPX) activity and decreased malondialdehyde (MDA) levels in diabetic rats (p < 0.05). It suppressed the expressions of vascular endothelial growth factor (VEGF) and interleukin (IL)-1β in retinal tissues, while it upregulated the expressions of nuclear factor erythroid 2- related factor 2 (NRF2) and heme oxygenase (HO-1). Conclusion: Aryl piperazine suppresses cataractogenesis and reduces cataract score in diabetic rats by targeting oxidative stress. Moreover, in retinal tissues of diabetic rats, aryl piperazine activates Nrf2/mHO-1 signaling pathway. Thus, aryl piperazine has a potential for use in the prevention of cataracts
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