A dynamic learning method is developed for an uncertain n-link robot with unknown system dynamics, achieving predefined performance attributes on the link angular position and velocity tracking errors. For a known nonsingular initial robotic condition, performance functions and unconstrained transformation errors are employed to prevent the violation of the full-state tracking error constraints. By combining two independent Lyapunov functions and radial basis function neural network approximator, a novel and simple adaptive neural control scheme is proposed for the dynamics of the (...) unconstrained transformation errors, which guarantees uniformly ultimate boundedness of all the signals in the closed-loop system. In the steady-state control process, RBF NNs are verified to satisfy the partial persistent excitation condition. Subsequently, an appropriate state transformation is adopted to achieve the accurate convergence of neural weight estimates. The corresponding experienced knowledge on unknown robotic dynamics is stored in NNs with constant neural weight values. Using the stored knowledge, a static neural learning controller is developed to improve the full-state tracking performance. A comparative simulation study on a 2-link robot illustrates the effectiveness of the proposed scheme. (shrink)

The application study of robot control based brain-computer interface not only helps to promote the practicality of BCI but also helps to promote the advancement of robot technology, which is of great significance. Among the many obstacles, the importability of the stimulator brings much inconvenience to the robot control task. In this study, augmented reality technology was employed as the visual stimulator of steady-state visual evoked potential -BCI and the robot walking experiment in the maze was designed to testify the (...) applicability of the AR-BCI system. The online experiment was designed to complete the robot maze walking task and the robot walking commands were sent out by BCI system, in which human intentions were decoded by Filter Bank Canonical Correlation Analysis algorithm. The results showed that all the 12 subjects could complete the robot walking task in the maze, which verified the feasibility of the AR-SSVEP-NAO system. This study provided an application demonstration for the robot control base on brain–computer interface, and further provided a new method for the future portable BCI system. (shrink)

This paper extends the AGM theory of belief revision to accommodate infinitary belief change. We generalize both axiomatization and modeling of the AGM theory. We show that most properties of the AGM belief change operations are preserved by the generalized operations whereas the infinitary belief change operations have their special properties. We prove that the extended axiomatic system for the generalized belief change operators with a Limit Postulate properly specifies infinite belief change. This framework provides a basis for first-order belief (...) revision and the theory of revising a belief state by a belief state. (shrink)

This study investigates the use of modal verbs in Chinese–English government press conference interpretation. Modal verbs mark the speaker’s opinion of or attitude toward the event described in a sentence. Interpreters also use modal verbs to indicate the stances of the source language speakers. The use of modal verbs has been examined in such contexts as research papers, textbooks, and second language learners’ output; however, studies that compare differences in modal verbs between source and target languages in the context of (...) interpreting are sparse. The investigation being reported is based on a comparable corpus—an original Chinese GPC and its English-translated version—and a parallel corpus—a translated English GPC and the original English version from the US. The results of the comparable corpus analysis indicate that the frequency of modal verbs in translated English is significantly higher than in original Chinese, in which only 40% of the modal verbs in translated English are consistent with their Chinese counterparts, while others are employed through amplification and value variation. The results of the parallel corpus analysis suggest that the increase of modal verbs in the target texts may help to achieve certain types of pragmatic functions in English. (shrink)

This article offers a solution to the numbers problem within an individualist moral framework. Its central aims are as follows: to rescue individualist moral theories, such as moral contractualism, from their long-standing problem with interpersonal aggregation; to demonstrate how, proceeding from an individualist mode of justification, we can nevertheless make the numbers count without directly counting the numbers; to provide an individualist rationale for accepting a partially aggregative criterion of adjudication for resolving interpersonal trade-offs; and finally, to develop an extensionally (...) adequate version of partial aggregation that finds application in more structurally complex cases. (shrink)

Although CSR research in China has received increasing scholarly attention, employee-centered CSR is still an understudied topic. To fill the void, the purpose of this study is to demonstrate the effects of employees’ CSR perceptions on the quality of employee-organization relationships and workplace performance, as well as the underlying mechanisms explaining such effects, in the Chinese context. Guided by both managerial and relational approaches of corporate social responsibility research, we conducted a survey with employees from a large private company in (...) the electric and energy industry in China. Data were analyzed via path analysis using R packages and results revealed that CSR perceptions can lead to positive employee-organization relationship quality and increase employees’ extra-role performance. We also found that these effects can be further explained by increased employee-organization identification or perceived corporate ability. In addition, a qualitative analysis of employees’ responses showed that the influence of government and Confucianism was reflected in employees’ expectations for their employer’s CSR initiatives. This study contributes to the scant research on employee outcomes and the underlying mechanisms of employee-centered CSR in China. Practically, we add empirical evidence addressing the value of internal CSR for professionals and educators. (shrink)

In recent years, a greater focus has been placed on the influential power of domain-general psychological properties in second language acquisition and learning. The investigations of these properties, such as grit, academic procrastination and enjoyment etc. have been extensively conducted and are well-documented. Notwithstanding the surge of academic inquiry, the link between psychopathological notions and second language learning has not been adequately established and thoroughly scrutinized. The current study, therefore, aims to broaden the spectrum of second language research and explore (...) the impact of social phobia on willingness to communicate in the second language context. Meanwhile, this research introduces the self-construct, particularly the ideal L2 self to further examine and elucidate the impact. 173 qualified Chinese speakers of L2 English participated in the study. By conducting correlation analysis, regression analysis and structural equation modelling analysis, it was revealed that social phobia had a significant negative impact on L2 willingness to communicate in social situations of meetings and public speaking. Ideal L2 self acted as a complete mediating role in the impact. Pedagogical implications and future directions were proposed and discussed. (shrink)

While previous studies have examined front-line teachers’ written feedback practices in second language (L2) writing classrooms, such studies tend to not take teachers’ language and sociocultural backgrounds into consideration, which may mediate their performance in written feedback provision. Therefore, much remains to be known about how L2 writing teachers with different first languages (L1) enact written feedback. To fill this gap, we designed an exploratory study to examine native English-speaking (NES) and non-native English-speaking (NNES) (i.e., Chinese L1) teachers’ written feedback (...) practices in the Chinese tertiary context. Our study collected 80 English as a foreign language (EFL) students’ writing samples with teacher written feedback and analyzed them from three aspects: Feedback scope, feedback focus, and feedback strategy. The findings of our study revealed that the two groups of teachers shared similar practices regarding feedback scope and feedback strategies. Both NES and NNES EFL teachers used a comprehensive approach to feedback provision, although NNES teachers provided significantly more feedback points than their NES peers and they delivered their feedback directly and indirectly. However, their practices differed greatly with regard to feedback focus. Specifically, when responding to EFL students’ writing, NES teachers showed more concern with global issues (i.e., content and organization), whereas NNES teachers paid more attention to linguistic errors. With a surge in the recruitment of expatriate NES and local NNES English teachers in China and other EFL countries, our study is expected to make a contribution to a better understanding of the two groups of EFL teachers’ pedagogical practices in written feedback provision and generate important implications for their feedback provision. (shrink)

The Evaluative Judgment Theories of Emotion mainly suggest that emotions can be reduced to evaluative beliefs or judgments. Specifically, evaluative beliefs are necessary but not sufficient conditions for evaluative judgments. And reducing emotions to evaluative judgments requires the subject’s conceptualizing ability. However, the Evaluative Judgment Theories of Emotion has many problems, including that evaluative beliefs are neither sufficient nor necessary for emotions; the evaluative judgment theory of emotion presupposes the subject’s conceptual content, but conceptual content is not a necessary and (...) sufficient condition for emotions; the requirement of conceptualization ability for evaluative judgments is too high, which makes emotions overintellectualize; and the add-on strategy of emotions cannot save the evaluative judgment theory of emotions as well. (shrink)

Valuing something is complicated. Philosophers have offered different stories about what we do when we value something. However, we have not paid enough attention to the thought that, sometimes, valuing something is what makes us the kind of practical agents we are. In this paper, I offer a novel account of valuing, which I call thick valuing, to capture this special phenomenon in which our valuing makes us who we are. This requires us to recognize that the cognitive, motivational, and (...) affective components of thick valuing do not merely co-occur. More importantly, it is key to focusing on how thickly valuing something partially constitutes, and indeed crucially expresses, our practical identities. Beyond that, the account sheds new light on how we can better understand inauthenticity—to act without authenticity is to act from what one thickly values but where that which one thickly values are not values of one’s own. (shrink)

This paper describes how meta-cognitive processes (i.e., the self monitoring and regulating of cognitive processes) may be captured within a cognitive architecture Clarion. Some currently popular cognitive architectures lack sufficiently complex built-in meta-cognitive mechanisms. However, a sufficiently complex meta-cognitive mechanism is important, in that it is an essential part of cognition and without it, human cognition may not function properly. We contend that such a meta-cognitive mechanism should be an integral part of a cognitive architecture. Thus such a mechanism has (...) been developed within the Clarion cognitive architecture. The paper demonstrates how human data of two meta-cognitive experiments are simulated using Clarion. The simulations show that the meta-cognitive processes represented by the experimental data (and beyond) can be adequately captured within the Clarion framework. (shrink)

Truth pluralism is the view that there is more than one truth property. The strong version of it (i.e. strong pluralism) further contends that no truth property is shared by all true propositions. In this paper, I help strong pluralism solve two pressing problems concerning mixed discourse: the problem of mixed inferences (PI) and the problem of mixed compounds (PC). According to PI, strong pluralism is incompatible with the truth- preservation notion of validity; according to PC, strong pluralists cannot find (...) any appropriate truth property for mixed compound propositions, whose atomic constituents are from different domains of discourse (e.g., <sky is blue and chocolate is tasty>). I argue that the strong pluralist is motivated to take the truth predicate in truth-involving universal statements to be deflationary to avoid the two pressing problems. Such a move entails that the truth predicate in the platitude of validity (V) for any argument, it is valid if and only if necessarily its conclusion is true when its premises are all true does not denote any substantive truth property. Instead, it is merely an expressive device to help people generalize instances of (V) to (V). Analogous stories hold for the truth predicate in the platitudes of compound (e.g., conjunction). The upshot is that, the strong pluralist can solve PI and PC by further conceding that mixed compounds are true/false in a deflationary way. (shrink)

After the founding of the People’s Republic of China in 1949, the leadership of the new country carried out a political, cultural, and scientific campaign to “comprehensively learn from the Soviet Union,” with the goal of rapid development on all fronts. In the realm of medicine, this had profound consequences. The hegemonic Soviet theory of physiology and psychology—Pavlovianism—became highly influential in China, first as Party Line and second as the basis for a reformed “traditional Chinese medicine”. In the early 1950s, (...) Pavlov’s theory of higher nervous activity had the status of unquestioned orthodoxy. However, a disagreement between the Ministry of Health and national leader Mao Zedong led to an important shift in 1954. After that date, instead of adopting the Soviet theories wholesale, Chinese medical practitioners used Pavlovianism to shape Chinese medicine’s underlying theoretical constructs. The influence of this reconstruction persists to this day, in practices thought of by the public as thoroughly Chinese, like acupuncture, holistic thinking, inner organs theory, and acupoint injection therapy. (shrink)

In “Sidgwick on Bentham: the ‘Double Aspect’ of Utilitarianism”, Schofield argued that Bentham did not regard his psychological theory as part of his utilitarianism and that natural benevolence is at his disposal to mitigate the problem of the “double aspect” of utilitarianism. This paper argues that Bentham regarded his psychological theory as part of his utilitarianism and that, in a manner quite distinct from an internal, benevolence approach, he took advantage of self‐preference and thus adopted a self‐preference and artificial means‐based (...) approach, thereby still maintaining an internal approach supported by external, institutional contrivance. In so doing, he argued first that self‐preference could add to the greatest happiness; second, that benevolence would tend to facilitate the achievement of the greatest happiness, with the consequence that he endorsed the artificial cultivation of benevolence; and third, that the artificial means of the junction‐of‐interests‐prescribing principle should be adopted to bridge the gap between self‐preference and the greatest happiness. Sidgwick failed to appreciate the depth and sophistication of Bentham's logic. (shrink)

Deep self views of moral responsibility suggest that an agent fully satisfies the freedom condition for responsibility if and only if her actions or omissions issue from, and so express, her deep self. This analysis generates both false negatives and false positives regarding people's responsibility, and counterexamples proliferate. I defend a novel version of the deep self view by offering a necessary condition for accountability while retaining the core of deep self views. Indeed, an agent may be blameworthy for her (...) wrongdoing without it issuing from, and so expressing, her deep self. And yet, I argue that she must have a deep self for which she is responsible. This is achieved by paying closer attention to history than standard views have. Focusing on history then reveals a less discussed problem for standard views: the ahistorical features of them make them less equipped to explain cases of blameworthiness that is undermined. (shrink)

Unethical research practices are prevalent in China, but little research has focused on the causes of these practices. Drawing on the criminology literature on organisational deviance, as well as the concept of cengceng jiama, which illustrates the increase of pressure in the process of policy implementation within a top-down bureaucratic hierarchy, this article develops an institutional analysis of research misconduct in Chinese universities. It examines both universities and the policy environment of Chinese universities as contexts for research misconduct. Specifically, this (...) article focuses on China’s Double First-Class University Initiative and its impact on elite universities that respond to the policy by generating new incentive structures to promote research quality and productivity as well as granting faculties and departments greater flexibility in terms of setting high promotion criteria concerning research productivity. This generates enormous institutional tensions and strains, encouraging and sometimes even compelling individual researchers who wish to survive to decouple their daily research activities from ethical research norms. This article is written based on empirical data collected from three elite universities as well as a review of policy documents, universities’ internal documents, and news articles. (shrink)

Meritocracy claims to reward the meritorious with more resources, thereby achieving social efficiency and justice in a level playground. This article argues that the rise of meritocracy in a society is the institutional consequence of adopting progressive humanism, an ideal-type worldview that advocates the harmonious co-realization of individual achievement and social contribution. However, meritocracy is a self-defeating illusion because, even in a level playground, it only rewards conspicuous and wasteful display of ‘merit’ rather than genuine contributions to society. Similar to (...) the promise of an afterlife to Catholicism, the illusion of meritocracy constitutes an indispensable theodicy to progressive humanism. For societies holding such worldviews, meritocracy is a necessary illusion that cannot be dispelled by institutional reforms or political movements. (shrink)

We show that it is consistent with ZFC + ¬CH that there is a maximal cofinitary group (or, maximal almost disjoint group) G ≤ Sym(ω) such that G is a proper subset of an almost disjoint family A $\subseteq$ Sym(ω) and |G| < |A|. We also ask several questions in this area.

Multimodal neuroimaging provides a rich source of data for identifying brain regions associated with disease progression and aging. However, present studies still typically analyze modalities separately or aggregate voxel-wise measurements and analyses to the structural level, thus reducing statistical power. As a central example, previous works have used two quantitative MRI parameters—R2* and quantitative susceptibility —to study changes in iron associated with aging in healthy and multiple sclerosis subjects, but failed to simultaneously account for both. In this article, we propose (...) a unified framework that combines information from multiple imaging modalities and regularizes estimates for increased interpretability, generalizability, and stability. Our work focuses on joint region detection problems where overlap between effect supports across modalities is encouraged but not strictly enforced. To achieve this, we combine L1, total variation, and L2 group lasso penalties. While the TV penalty encourages geometric regularization by controlling estimate variability and support boundary geometry, the group lasso penalty accounts for similarities in the support between imaging modalities. We address the computational difficulty in this regularization scheme with an alternating direction method of multipliers optimizer. In a neuroimaging application, we compare our method against independent sparse and joint sparse models using a dataset of R2* and QS maps derived from MRI scans of 113 healthy controls: our method produces clinically-interpretable regions where specific iron changes are associated with healthy aging. Together with results across multiple simulation studies, we conclude that our approach identifies regions that are more strongly associated with the variable of interest, more accurate, and more stable with respect to training data variability. This work makes progress toward a stable and interpretable multimodal imaging analysis framework for studying disease-related changes in brain structure and can be extended for classification and disease prediction tasks. (shrink)

Scholars of Marx often spend much effort to emphasize the socio-historical characteristics of Marx's concept of nature. At the same time, from this concept of nature, one seems to be able to deduce a strong sense of historical anthropocentricism and relativism. But through an exploration of the results of Rorty's discarding the distinction between "natural" and "man-made" and Strauss' clearing up value relativism in terms of the concept of nature, people will find that historicism is a world outlook that brought (...) its historical circumstances on itself. It neglects the fundamental role of nature in the structure of the relationships between nature and history. A modern result of it is that it fails to offer any universal norms. (shrink)

Although multimodal input has the potential to lead to more sound learning outcomes, it carries the risk of causing cognitive overload, making it difficult to determine the exact effects of multimodal input on the second language phrase learning. This study tests the efficacy of multimodal input on L2 phrase learning. It adopts a mixed-method approach by utilizing both quantitative and qualitative data. The experimental design is a 2 × 3 mixed model, with a group [the experimental group and the control (...) group ] as the between-subject factor and time as the within-subject factor. A total of 66 participants were divided into two groups. All materials incorporated three aspects of phrase knowledge, but the materials of the CG were unimodal in that they were offered only on paper, and of the EG were multimodal in that they included pictures, audio recordings, and video clips. After the treatment, a questionnaire and a semi-structured interview were given to the EG learners to explore their perceptions of using multimodal materials to learn L2 phrases. The results indicate that both groups had significant gains in learning phrases, but students with the multimodal input achieved significantly better results than those with the unimodal input. Moreover, the EG students had a generally positive attitude toward the use of multimodal resources. This study validates the efficacy of multimodal input on the acquisition of English phrases and shows that cognitive overload was avoided by sequencing the information. (shrink)

Mass media play a significant role in shaping public opinion. News coverage of abortion reflects narratives about reproductive health, ethics, and women, and may potentially reinforce negative soci...

Social media chat groups, such as WeChat and WhatsApp groups, are widely applied in online communication. This research has conducted two studies to examine the individual level and collective level’s opinion dynamics in those groups. The opinion dynamic is driven by two variables, people’s perceived peer support and willingness of opinion expression. The perceived peer support influences the willingness of opinion expression, and the willingness influences the dynamics of real opinion-expression. First, the quasi-experimental study recruited twenty-five participants as the observation (...) group and found that decreasing perceived peer support would significantly increase individuals’ expression willingness to protect his/her opinion. To generalize the individual level findings to a collective level, the second study treated the social media chat groups as an undirected fully-connected social network and simulated people’s opinion expression dynamics with an agent-based model. The simulation indicated that with the help of increased willingness of opinion expression, the minority opinion supporters as a collective did not fall silent but continue to express themselves and increasing willingness of opinion expression would maintain the existence of minority opinion but could not help the minority reverse to the majority. (shrink)

According to approximate Bayesianism, Bayesian norms are ideal norms worthy of approximation for non-ideal agents. This paper discusses one potential challenge for approximate Bayesianism: in non-transparent learning situations—situations where the agent does not learn what they have or have not learnt—it is unclear that the Bayesian norms are worth satisfying, let alone approximating. I discuss two replies to this challenge and find neither satisfactory. I suggest that what transpires is a general tension between approximate Bayesianism and the possibility of “non-ideal” (...) epistemic situations. (shrink)

With the aggravation of population aging, home health care services are paid more and more attention by the elderly. Previous studies aim at improving service quality and reducing cost, ignoring the coordinated and sustainable development of the economy and environment. From the perspective of sustainable development, this paper first establishes a linear optimization model considering transportation, time, and carbon emission costs. However, the uncertainty of service demand is a very difficult problem for HHC research. Most of the previous studies only (...) consider the deterministic model, which has difficulty dealing with the uncertain situation. Therefore, a robust optimization model is proposed to resist uncertain disturbances by introducing a robust uncertain set response. The experimental results show that the increase of low-carbon transition cost only increases the total cost of the LO model but has a significant positive impact on the RO model. With the increase of uncertainty, the robust model will pay the cost of robustness, but it can obtain a higher service level. In addition, when the carbon tax increases, the total transportation cost does not increase but decreases, thus obtaining environmental benefits. When the carbon tax increases by 25%, the average total cost of using the RO model is reduced by 8.274%. The research results of this paper can provide enlightenment and reference for the low-carbon transformation of HHC enterprises. (shrink)

Understanding the processing of sexual stimuli has become a significant part of research on human sexuality. In addition to individual characteristics, empirical studies have shown that cultural factors play an important role in sexual stimuli processing. The attitudes toward sex have been reported to be more conservative in East Asian societies as compared to western countries, and significantly more sexual difficulties are observed among East Asian people. However, stimulus materials, which potentially facilitate human sexuality research on native East Asian people, (...) are relatively not satisfactory. Erotic stimuli depicting East Asian figures are limited in the existing picture datasets. To address this issue, we present a collection of 237 erotic and 108 control pictures, accompanied by self-reported ratings of sexual arousal, pleasantness, and sexual attractiveness for opposite-sex erotic stimuli by heterosexual males and females. This collection is divided into six categories, depending on their contents: dressed males, semi-nude males, nude males, dressed females, semi-nude females, and nude females. We showed gender differences in sexual arousal, pleasantness, and sexual attractiveness ratings in response to opposite-sex erotic pictures. Males reported the highest levels of sexual arousal, pleasantness, and sexual attractiveness for nude female pictures, whereas females reported the highest levels of sexual arousal, pleasantness, and sexual attractiveness for semi-nude male pictures. The erotic picture dataset may provide a useful resource of erotic stimuli that can be used as stimulus materials in experimental research on sexual function in East Asians. (shrink)

This paper develops an adaptive fixed-time trajectory tracking controller of an underactuated hovercraft with a prescribed performance in the presence of model uncertainties and unknown time-varying environment disturbances. It is the first time that the proposed method is applied to the motion control of the hovercraft. To begin with, based on the hovercraft's four degrees of freedom model, the virtual control laws are designed using an error transforming function and the fixed-time stability theory to guarantee that the position tracking errors (...) are constrained within the prescribed convergence rates and minimum overshoot. In addition, by combining the Lyapunov direct method and the adaptive radial basis function neural network, the actual control laws are designed to ensure that the velocity tracking errors converge to a small region containing zero while handling model uncertainties and external disturbances effectively. Finally, all tracking errors of the closed-loop system are uniformly ultimately bounded and fixed-time convergent. Results from a comparative simulation study verify the effectiveness and advantage of the proposed method. (shrink)

When we make transformative choices, there is always a risk of regret. While a decision-maker may predict that she will not regret her choice, others might predict the opposite and attempt to prevent her from proceeding to shield her from future regret. This paper argues that there is a pro tanto epistemic reason against such intervention because, ceteris paribus, it is prima facie irrational for others to maintain their belief (that she will regret) without deferring to the decision-maker’s own prediction. (...) This is because, unlike others, the decision-maker knows what it is like to live her current life, which puts her in a better epistemic position to make the regret prediction. (shrink)