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CLASS, GENDER, AND MEDIATED LABOR ACTIVISM IN GLOBALIZING CHINA
My dissertation analyzes the relationships between mediated labor activism and the formation of counter-hegemonic forces in contemporary China. As China becomes a seemingly ideal model to justify the normalization of global capitalism, this study seeks to demonstrate how resistance from disenfranchised groups can challenge hegemonic power. Rural-to-urban migrant workers, who have been among the most disadvantaged groups since Chinaâs economic reform of the 1980s, suffer from institutionalized discrimination, economic exploitation, and social exclusion. Approaching the analysis from an intersectional feminist lens, I explore the politics and possibilities of working-class resistance in searching for a just and equal China. Based on online and offline ethnographic fieldwork from March 2016 to July 2018 and using mixed qualitative methods, I analyzed communicative and mediated practices of rural migrant workers, NGO staff, activists, scholars, and other social actors in terms of their advocacy for social equality.
By identifying and explicating four sites of activism: performance, music, social media, and alternative/community media, my study shows that the fight for migrant workersâ equal rights has become not only a moral but a political and ideological standpoint from which to resist capitalism, consumerism, and urban and middle-class superiority in post-Mao China. Feminist agendas have been incorporated â but still rather marginalized â in contemporary Chinese labor activism and working-class resistance. By demonstrating how workersâ collective resistance is embedded in their daily lives and explicating the ways in which media and culture become both sites and means for resistance, my dissertation contributes to labor studies in China and bridges the fields of media research and resistance studies. The study also enhances theoretical discussions on mediated activism and social movements by examining China as a unique case. I demonstrate that mediated activism facilitates the formation of counter-publics and counter-power, with possibilities to grow into more enduring and large-scale movements in non-democratic regimes such as China
Abstraction-Based Verification of Approximate Pre-Opacity for Control Systems
In this paper, we consider the problem of verifying pre-opacity for
discrete-time control systems. Pre-opacity is an important information-flow
security property that secures the intention of a system to execute some secret
behaviors in the future. Existing works on pre-opacity only consider non-metric
discrete systems, where it is assumed that intruders can distinguish different
output behaviors precisely. However, for continuous-space control systems whose
output sets are equipped with metrics (which is the case for most real-world
applications), it is too restrictive to assume precise measurements from
outside observers. In this paper, we first introduce a concept of approximate
pre-opacity by capturing the security level of control systems with respect to
the measurement precision of the intruder. Based on this new notion of
pre-opacity, we propose a verification approach for continuous-space control
systems by leveraging abstraction-based techniques. In particular, a new
concept of approximate pre-opacity preserving simulation relation is introduced
to characterize the distance between two systems in terms of preserving
pre-opacity. This new system relation allows us to verify pre-opacity of
complex continuous-space control systems using their finite abstractions. We
also present a method to construct pre-opacity preserving finite abstractions
for a class of discrete-time control systems under certain stability
assumptions.Comment: Discrete Event Systems, Opacity, Formal Abstraction
Ecology of Yuqing County Carbon Sink Calculation and Ecosystem Protection Measures
Based on the remote sensing statistical data of land use of terrestrial ecosystems in Yuqing County, this paper calculates the amount of carbon sinks in the county according to the existing carbon sink carbon density index, compares the amount of different types of carbon sinks, and analyzes their respective carbon sink potential. The results show that the forest carbon sink is the largest, about 2.2 million tons, accounting for 75% of the total carbon sink in the county, showing the great potential of forest vegetation to absorb CO2 through photosynthesis, followed by the carbon sink produced by dry land (cultivated land), about 400,000 tons, accounting for 13% of the total carbon sink in the county; Although the amount of wetland aquatic carbon sink is small, its carbon density is very large, and it has the advantages of short renewal time and fast carbon sink, so it has great potential and can be artificially regulated to increase carbon sink. Based on the above research and analysis, combined with the spirit of the national carbon peak and carbon neutral policy and the natural law of ecosystem development, three measures to protect and increase carbon sinks in terrestrial ecosystems were put forward: (1) continuing to carry out forestry planting and do a good job in forestry protection; (2) stabilizing the surface water area and developing aquatic carbon sinks; (3) Establish a long-term monitoring system to ensure the contribution of carbon sinks, provide support for the protection of ecosystem and the development of carbon sink potential in Yuqing County from two aspects of science and management, and compare the amount of different types of carbon sinks, and analyze their carbon sink potential. On this basis, combined with the spirit of the national carbon peak and carbon neutral policy and the natural law of ecosystem development, three kinds of terrestrial ecosystem carbon sink protection and increase wording were put forward accordingly, which provided support for ecosystem protection and carbon sink potential development in Yuqing County from two aspects of science and management
A hybrid method for quantum dynamics simulation
We propose a hybrid approach to simulate quantum many body dynamics by
combining Trotter based quantum algorithm with classical dynamic mode
decomposition. The interest often lies in estimating observables rather than
explicitly obtaining the wave function's form. Our method predicts observables
of a quantum state in the long time by using data from a set of short time
measurements from a quantum computer. The upper bound for the global error of
our method scales as with a fixed set of the measurement. We apply
our method to quench dynamics in Hubbard model and nearest neighbor spin
systems and show that the observable properties can be predicted up to a
reasonable error by controlling the number of data points obtained from the
quantum measurements.Comment: 9 pages, 4 figure
Experimental Flight Testing of an Adaptive Autopilot with Parameter Drift Mitigation
This paper modifies an adaptive multicopter autopilot to mitigate
instabilities caused by adaptive parameter drift and presents simulation and
experimental results to validate the modified autopilot. The modified adaptive
controller is obtained by including a static nonlinearity in the adaptive loop,
updated by the retrospective cost adaptive control algorithm. It is shown in
simulation and physical test experiments that the adaptive autopilot with
proposed modifications can continually improve the fixed-gain autopilot as well
as prevent the drift of the adaptive parameters, thus improving the robustness
of the adaptive autopilot.Comment: 6 pages, 16 figures, submitted to IROS 202
New insights into the cortex-to-stele ratio show it to effectively indicate inter- and intraspecific function in the absorptive roots of temperate trees
The cortex-to-stele ratio (CSR), as it increases from thin- to thick-root species in angiosperms, is theorised to effectively reflect a compensation for the âlagâ of absorption behind transportation. But it is still not known if this compensatory effect exists in gymnosperm species or governs root structure and function within species. Here, anatomical, morphological, and tissue chemical traits of absorptive roots were measured in three temperate angiosperm and three gymnosperm species. Differences in the CSR and the above functional traits, as well as their intraspecific associations, were analyzed and then compared between angiosperms and gymnosperms. At the intraspecific level, the CSR decreased with increasing root order for all species. The expected functional indication of the CSR was consistent with decreases in specific root length (SRL) and N concentration and increases in the C to N ratio (C:N ratio) and the number of and total cross-sectional area of conduits with increasing root order, demonstrating that the CSR indicates the strength of absorption and transportation at the intraspecific level, but intraspecific changes are due to root development rather than the compensatory effect. These trends resulted in significant intraspecific associations between the CSR and SRL (R2 = 0.36 ~ 0.80), N concentration (R2 = 0.48 ~ 0.93), the C:N ratio (R2 = 0.47 ~ 0.91), and the number of (R2 = 0.21 ~ 0.78) and total cross-sectional area (R2 = 0.29 ~ 0.72) of conduits in each species (p< 0.05). The overall mean CSR of absorptive roots in angiosperms was four times greater than in gymnosperms, and in angiosperms, the CSR was significantly higher in thick- than in thin-rooted species, whereas in gymnosperms, the interspecific differences were not significant (p > 0.05). This suggests that the compensation for the lag of absorption via cortex thickness regulation was stronger in three angiosperm species than in three gymnosperm species. In addition, there was poor concordance between angiosperms and gymnosperms in the relationships between CSRs and anatomical, morphological, and tissue chemical traits. However, these gymnosperm species show a more stable intraspecific functional association compared to three angiosperm species. In general, absorptive root CSRs could manifest complex strategies in resource acquisition for trees at both intra- and interspecific levels
A bibliometric analysis of metastatic breast cancer: two-decade report (2002-2022)
BackgroundMBC is a lethal form of breast cancer that arises when cancer cells invade other organs or tissues. The treatment of MBC needs personalized approaches based on the tumor and patient characteristics. The purpose of this paper is to analyze MBC studies from 2002 to 2022 using bibliometrics and to investigate its current situation, main contributors, core journals, highly cited papers, and topic evolution.Materials and methodsWe retrieved data from Web of Science Core Collection (WOSCC). Bibliometric analysis of the included literatures mainly used the following tools: the function of âanalyze resultsâ and âcitation reportâ in WoS, Microsoft excel 2021, CiteSpace v.6.1. R6, VOSviewer v.1.6.18, BICOMB v.2.04 and gCLUTO v.1.0.ResultsWe found 12,653 articles on MBC research published in 1, 802 journals by 69, 753 authors from 118 countries. The annual output and citation of MBC articles showed a rising trend over time. The United States was the most influential country in MBC research. The most cited journal in this field was The Journal of Clinical Oncology. And the most cited article was by Slamon DJ. The co-word analysis of keywords divides MBC into six research clusters. The hormone receptor-positive MBC and liquid biopsy of MBC are the frontiers research trends. âCDK4/6 inhibitorâ had the highest burst strength.ConclusionOur bibliometric analysis offers a comprehensive overview of MBC research in the past two decades. It shows the current situation, main contributors, core journals, highly cited papers, and topic evolution of this field. Our study can assist researchers and practitioners to comprehend the development and trends of MBC research and to discover potential directions for future research
The relationship of intimate partner violence on depression: the mediating role of perceived social support and the moderating role of the Big Five personality
IntroductionThis study aimed to explore the influence of Intimate Partner Violence (IPV) on depression, the mediating role of social support, and the moderating role of the Big Five personality traits in the relationship between social support and depression.MethodsParticipants were recruited from Mainland China, using a stratified random sampling and quota sampling method. From June to August 2022, a diverse group of 21,916 participants (ranging from 12 to 100 years old) completed the Intimate Partner Violence Scale, Patient Health Questionnaire, Perceived Social Support Scale, and Big Five Inventory-Short Version.ResultsIPV was significantly positively correlated with depression and significantly negatively correlated with perceived social support. Perceived social support plays a mediating role in the link between IPV and depression.DiscussionHealthcare workers should assess social support and provide adequate care or recommendations for increasing social support when patients with IPV report depressive symptoms. Patients can be coached by professionals to improve their resiliency by developing or nurturing more optimistic personality traits
Research progress on and molecular mechanism of vacuum sealing drainage in the treatment of diabetic foot ulcers
Diabetic foot ulcers (DFUs) are common chronic wounds and a common complication of diabetes. The foot is the main site of diabetic ulcers, which involve small and medium-sized arteries, peripheral nerves, and microcirculation, among others. DFUs are prone to coinfections and affect many diabetic patients. In recent years, interdisciplinary research combining medicine and material science has been increasing and has achieved significant clinical therapeutic effects, and the application of vacuum sealing drainage (VSD) in the treatment of DFUs is a typical representative of this progress, but the mechanism of action remains unclear. In this review, we integrated bioinformatics and literature and found that ferroptosis is an important signaling pathway through which VSD promotes the healing of DFUs and that System Xc-GSH-GPX4 and NAD(P)H-CoQ10-FSP1 are important axes in this signaling pathway, and we speculate that VSD is most likely to inhibit ferroptosis to promote DFU healing through the above axes. In addition, we found that some classical pathways, such as the TNF, NF-ÎșB, and Wnt/ÎČ-catenin pathways, are also involved in the VSD-mediated promotion of DFU healing. We also compiled and reviewed the progress from clinical studies on VSD, and this information provides a reference for the study of VSD in the treatment of DFUs
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