The original design of a software system is rarely prepared for every new requirement. Software systems should be updated frequently, which is usually accompanied by the decline in software modularity and quality. Although many approaches have been proposed to improve the quality of software, a majority of them are guided by metrics defined on the local properties of software. In this article, we propose to use a global metric borrowed from the network science to detect the moving method refactoring. First, (...) our approach uses a bipartite network to represent classes, features, and their dependencies. Second, a new metric is introduced to quantify the modularity of a software system as a whole. Finally, a crossover-only evolutionary algorithm that uses the metric as its fitness function is introduced to optimize the class structure of a software system and detect the methods that should be moved. Empirical results on the benchmark Java projects show that our approach can find meaningful methods that should be moved with a high stability. The advantages of our approach are illustrated in comparison with some other approaches, specifically one refactoring approach, namely search-based refactoring approach, and two community detection algorithms, namely a graph theoretic clustering algorithm and a fast algorithm for community detection. Our approach provides a new way to do refactoring from the perspective of software structure. (shrink)
According to the author, the subordination of Chinese women continued under different models of sex equality in China in the twentieth century. In Reconceiving Women's Equality in China Lijun Yuan discusses and assesses four models of women’s equality. After exposing the common feature of their failure to reach the social ideal of women’s equality, the author proposes a more democratic conception of women’s equality that will allow ideals to continue changing as material circumstances change in different stages of social (...) development. (shrink)
Jian Zhou,* Weiqiang Ju,* Xiaopeng Yuan, Xiaofeng Zhu, Dongping Wang, Xiaoshun HeOrgan Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China *These authors contributed equally to this work: Hyperosmolar nonketotic hyperglycemic coma is a serious, rare complication induced by methylprednisolone pulse therapy for acute rejection after orthotopic liver transplantation. Herein, we report an unusual case of a 58-year-old woman who experienced acute rejection at 30 months after OLT, only one case in which HNKHC resulted in (...) MP pulse therapy for acute rejection in all 913 recipients in our center. The general morbidity of HNKHC was 1.09‰ in this study. HNKHC is characterized by rapid onset, rapid progression, and a lack of specific clinical manifestations. High-dose MP management was a clear risk factor. The principle of treatment included rapid rehydration, low-dose insulin infusion, and correcting disorders of electrolytes and acidosis. In conclusion, clinicians considering MP pulse therapy after OLT should be alert to the occurrence of HNKHC. Keywords: liver transplantation, complications, hyperosmolar nonketotic hyperglycemic coma, methylprednisolone pulse therapy, principle of treatment. (shrink)
Confucian traditions have ingrained gender stratifications in Chinese culture today. Yuan proposes re-reading early Confucian texts as a vision of Ren with Dao with the unity of heaven, earth, and humanity, in order to reclaim the egalitarian aspects and develop openness for gender equity with integration of feminist critical care ethics.
Recent studies have revealed that the temporal lobe, a cortical region thought to be in charge of episodic and semantic memory, is involved in creative insight. This work examines the contributions of discrete temporal regions to insight. Activity in the medial temporal regions is indicative of novelty recognition and detection, which is necessary for the formation of novel associations and the “Aha!” experience. The fusiform gyrus mainly affects the formation of gestalt-like representation and perspective taking. The anterior and posterior middle (...) temporal gyri are individually associated with extensive semantic processing and inhibiting salient or routine word associations, which are necessary to form non-salient, novel and remote associations. The anterior and posterior superior temporal gyri are individually responsible for integrating/binding and accessing various types of available conceptual representations. Based on the current knowledge, an integrated model of the temporal lobe's role in insight and some future directions are proposed. (shrink)
Complex energy systems can effectively integrate renewable energy sources such as wind and solar power into the information network and coordinate the operation of renewable energy sources to ensure its reliability. In the voltage source converter-based high voltage direct current system, the traditional vector control strategy faces some challenges, such as difficulty in PI parameters tuning and multiobjective optimizations. To overcome these issues, a finite control set model predictive control-based advanced control strategy is proposed. Based on the discrete mathematical model (...) of the grid-side voltage source converter, the proposed strategy optimizes a value function with errors of current magnitudes to predict switching status of the grid-side converter. Moreover, the abilities of the system in resisting disturbances and fault recovery are enhanced by compensating delay and introducing weight coefficients. The complex energy system in which the wind power is delivered by the voltage source converter-based high voltage direct current system is modeled by Simulink and simulation results show that the proposed strategy is superior to the tradition PI control strategy under various situations, such as wind power fluctuation and fault occurrences. (shrink)
Integrating corporate social responsibility (CSR) initiatives in business is one of the great challenges facing firms today. Societal stakeholders require much more from the firm than pursuing profitability and growth. But these societal stakeholders often simply assume that increased societal expectations can easily be accommodated within efficiently run business operations, without much attention devoted to process issues. We build upon the core—periphery thesis to explore potential avenues for firms to add recurring CSR initiatives to their existing business practices. Based on (...) Siggelkow's (Admin Sei Quart 47: 125-159, 2002) analysis of organizational change, we conceptualize seven major patterns of CSR initiative adoption. We develop a new organizing framework showing how a firm can integrate CSR initiatives in business. Within the new framework, each of the seven patterns represents an idiosyncratic path through which recurring CSR initiatives can be included as practices into conventional operations. We also explore the nature of the resulting internal fit between recurring CSR initiatives and business practices. (shrink)
This study uses the institutional perspective to examine the interaction effects between the subnational institutional context and firm-level parameters on corporate environmental behaviors, based on a unique cross-sectional data set of private firms compiled from three different sources in China. Our results suggest that both enforcement stringency of environmental regulations at the provincial-level and private firms’ foreign ownership negatively affect compensation fees, which are levies charged for firms’ emissions. Enforcement stringency also moderates the firm-level relationship between foreign ownership and compensation (...) fees, but such a cross-level moderating effect holds only for private firms with non-HMT investments. (shrink)
This comparative study of the ethics of care and the Confucian concept of jen argue against two assumptions made by Chenyang Li in his own study of these two traditions. Against him, I argue that a "feminine" morality is not adequate to address human equality, and that care-orientated theories like jen and care seem incompatible with the feminist commitment to oppose the subjection of women.
According to rationalists, synthetic a priori propositions convey new knowledge, whereas analytic propositions are non-informative or vacuous conceptual truths. However, as we argue in this article, each a priori proposition is necessarily true because of its semantic constituents and the way they are combined, and hence can be transformed into its equivalent analytic form. So each synthetic a priori proposition conveys only non-informative conceptual truths like analytic propositions.
: This comparative study of the ethics of care and the Confucian concept of jen argue against two assumptions made by Chenyang Li in his own study of these two traditions. Against him, I argue that a "feminine" morality is not adequate to address human equality, and that care-orientated theories like jen and care seem incompatible with the feminist commitment to oppose the subjection of women.
Ancient Chinese logicians presupposed no fixed order in the world. Things are changing all the time. Time, then, plays a crucial role in the structure of Chinese logic. This article uses the concept of "subjective time" and the Leibnizian concept of "possible worlds" to analyze the structure of logic in the Later Mohist Canon and in the logical reasoning of other early Chinese philosophers. The author argues that Chinese logic is structured in the time of the now. This time is (...) subjective and "spreads out" to more than one possible world. Chinese logicians had to deal with relationships in not only a single world but also more than one "possible world." The aim of Chinese logical reasoning is not to represent any universal truth but to point out (zhi ) a particular-world-related truth, or, in other words, the harmony of relations among particulars in a particular field at a single moment. Therefore, a valid Chinese logical argument represents only the beauty of harmony among possible worlds at a given moment. The harmony represented by Chinese logic brings to light a high level of aesthetic order in a world that is always changing. (shrink)
This study examines the impact of chief executive officer ability on firms’ corporate social responsibility performance. We find that firms’ CSR performance increases with CEO ability. Specifically, firms with more able CEOs are associated with more socially responsible activities and fewer socially irresponsible activities, and are associated with more stakeholder CSR rather than third-party CSR. We further find that the positive relation between CEO ability and CSR is weakened for CEO who is also the chair of the board and for (...) CEO who is close to retirement; and is weakened when the CSR emphasis exerted by a firm’s external environment is high. Our results are robust after controlling for firm fixed effects and to the use of multiple measures of CSR performance and CEO ability. Overall, our evidence is consistent with our conjecture that more able CEOs have less career concerns so that these CEOs are more willing to undertake long-term investments in socially beneficial activities, leading to better CSR performance. (shrink)
Based on the deterministic description of batch culture expressed in form of switched ordinary differential equations, we introduce a switched stochastic counterpart system with initial state difference together with uncertain switching instants and system parameters to model the process of glycerol biodissimilation to 1,3-propanediol induced byKlebsiella pneumoniae. Important properties of the stochastic system are discussed. Our aim is to obtain the unified switched instants and system parameters under the condition of different initial states. To do this, we will formulate a (...) system identification problem in which these uncertain switched instants and system parameters are regarded as decision variables to be chosen such that the relative error between experimental data and computational results is minimized. Such problem governed by the stochastic system is subject to continuous state inequality constraints and box constraints. By performing a time-scaling transformation as well as introducing the constraint transcription and local smoothing approximation techniques, we convert such problem into a sequence of approximation subproblems. Considering both the difficulty of finding analytical solutions and the complex nature of these subproblems, we develop a parallelized differential evolution algorithm to solve these approximation subproblems. From an extensive simulation, we show that the obtained optimal switched instants and system parameters are satisfactory with initial state difference. (shrink)
This paper reports research concerning a suitable dialogue model for human computer debate. In particular, we consider the adoption of Moore's (1993) utilization of Mackenzie's (1979) game DC, means of using computational agents as the test-bed to facilitate evaluation of the proposed model, and means of using the evaluation results as motivation to further develop a dialogue model, which can prevent fallacious argument and common errors. It is anticipated that this work will contribute toward the development of human computer dialogue, (...) and help to illuminate research issues in the field of dialectics itself. (shrink)
Clonorchiasis is the most important food-borne parasitic disease in China. In this paper, a mathematical model of clonorchiasis sinensis is proposed to mimic its transmission dynamics to assess the effects of intervention strategies such as snail control, health education, and chemotherapy. A threshold dynamics in terms of the basic reproductive number R0 has been established; that is, if R0 1, then the disease breaks out. The effects of different control measures are compared by numerical simulations. The numerical results suggest that (...) it is necessary to strengthen health education and improve faeces management and illustrate that snail control is the most effective way to be implemented in the clonorchiasis sinensis control in Foshan. (shrink)
In this paper, the Hopf bifurcation and control of the magnetic bearing system under an uncertain parameter are investigated. Firstly, the two-degree-of-freedom magnetic bearing system model with uncertain parameter is established. The method of orthogonal polynomial approximation is used to obtain the equivalent magnetic bearing model which is deterministic. Secondly, combining mathematical analysis tools and numerical simulations, the Hopf bifurcation of the equivalent model is analyzed. Finally, a hybrid feedback control method is introduced to control the Hopf bifurcation behavior of (...) the magnetic bearing system. (shrink)