We describe Peirce’s 1903 system of modal gamma graphs, its transformation rules of inference, and the interpretation of the broken-cut modal operator. We show that Peirce proposed the normality rule in his gamma system. We then show how various normal modal logics arise from Peirce’s assumptions concerning the broken-cut notation. By developing an algebraic semantics we establish the completeness of fifteen modal logics of gamma graphs. We show that, besides logical necessity and possibility, Peirce proposed an epistemic interpretation of the (...) broken-cut modality, and that he was led to analyze constructions of knowledge in the style of epistemic logic. (shrink)

Fecal microbiota transplantation has demonstrated efficacy and is increasingly being used in the treatment of patients with recurrent Clostridium difficile infection. Despite a lack of high-quality trials to provide more information on the long-term effects of FMT, there has been great enthusiasm about the potential for expanding its applications. However, FMT presents many serious ethical and social challenges that must be addressed as part of a successful regulatory policy response. In this article, we draw on a sample of the scientific (...) and bioethics literatures to examine clusters of ethical and social issues arising in five main areas: informed consent and the vulnerability of patients; determining what a “suitable healthy donor” is; safety and risk; commercialization and potential exploitation of vulnerable patients; and public health implications. We find that these issues are complex and worthy of careful consideration by health care professionals. Desperation of a patient should not be the basis for selecting treatment with FMT, and the patient's interests should always be of paramount concern. Authorities must prioritize development of appropriate and effective regulation of FMT to safeguard patients and donors, promote further research into safety and efficacy, and avoid abuse of the treatment. (shrink)

This article investigates Charles Peirce’s development of logical calculi for classical propositional logic in 1880–1896. Peirce’s 1880 work on the algebra of logic resulted in a successful calculus for Boolean algebra. This calculus, denoted byPC, is here presented as a sequent calculus and not as a natural deduction system. It is shown that Peirce’s aim was to presentPCas a sequent calculus. The law of distributivity, which Peirce states in 1880, is proved using Peirce’s Rule, which is a residuation, inPC. The (...) transitional systems of the algebra of the copula that Peirce develops since 1880 paved the way to the 1896 graphical system of the alpha graphs. It is shown how the rules of the alpha system reinterpret Boolean algebras, answering Peirce’s statement that logical graphs supply a new system of fundamental assumptions to logical algebra. A proof-theoretic analysis is given for the connection betweenPCand the alpha system. (shrink)

We present a dynamic approach to Peirce’s original construal of abductive logic as a logic of conjecture making, and provide a new decidable, contraction-free and cut-free proof system for the dynamic logic of abductive inferences with neighborhood semantics. Our formulation of the dynamic logic of abduction follows the philosophical and scientific track that led Peirce to his late, post-1903 characterization of abductive conclusions as investigands, namely invitations to investigate propositions conjectured at the level of pre-beliefs.

Every Berman’s variety \ which is the subvariety of Ockham algebras defined by the equation \ and \) determines a finitary substitution invariant consequence relation \. A sequent system \ is introduced as an axiomatization of the consequence relation \. The system \ is characterized by a single finite frame \ under the frame semantics given for the formal language. By the duality between frames and algebras, \ can be viewed as a \-valued logic as it is characterized by a (...) distributive lattice of \ elements with a unary operator. Moreover, a structural-rule-free, cut-free and terminating sequent system \ is established for \. The Craig interpolation property of \ is shown proof-theoretically utilizing \. (shrink)

A deterministic weakening \ of the Belnap–Dunn four-valued logic \ is introduced to formalize the acceptance and rejection of a proposition at a state in a linearly ordered informational frame with persistent valuations. The logic \ is formalized as a sequent calculus. The completeness and decidability of \ with respect to relational semantics are shown in terms of normal forms. From an algebraic perspective, the class of all algebras for \ is described, and found to be a subvariety of Berman’s (...) variety \. Every linearly ordered frame is logically equivalent to its dual algebra. It is proved that \ is the logic of a nine-element distributive lattice with a negation. Moreover, \ is embedded into \ by Glivenko’s double-negation translation. (shrink)

Charles Peirce’s alpha system \ is reformulated into a deep inference system where the rules are given in terms of deep graphical structures and each rule has its symmetrical rule in the system. The proof analysis of \ is given in terms of two embedding theorems: the system \ and Brünnler’s deep inference system for classical propositional logic can be embedded into each other; and the system \ and Gentzen sequent calculus \ can be embedded into each other.

Fecal microbiota transplantation is reportedly the most effective therapy for relapsing Clostridium Difficile infection and a potential therapeutic option for many diseases. It also poses important ethical concerns. This study is an attempt to assess clinicians’ perception and attitudes towards ethical and social challenges raised by fecal microbiota transplantation. A questionnaire was developed which consisted of 20 items: four items covered general aspects, nine were about ethical aspects such as informed consent and privacy issues, four concerned social and regulatory issues, (...) and three were about an FMT bank. This was distributed to participants at the Second China gastroenterology and FMT conference in May 2015. Basic descriptive statistical analyses and simple comparative statistical tests were performed. Nearly three quarters of the 100 respondents were gastro-enterologist physicians. 89% of all respondents believed FMT is a promising treatment modality for some diseases and 88% of whom chose clinical efficacy as the primary reason for recommending FMT. High expectation from patients and pressure on clinicians was reported as the most frequent reasons for not recommending FMT. The clinicians who had less familiarity with FMT reported significantly more worry related to the dignity and psychological impact of FMT compared to those who have high familiarity with FMT.More than half of the respondents were concerned about the commercialization of FMT, although almost one in five respondents did not see this as a problem. We found most respondents have positive attitudes towards FMT but low awareness of published evidence. Informed consent for vulnerable patients, privacy and protection of donors were perceived as the most challenging ethical aspects of FMT. This study identified areas of limited knowledge and ways of addressing ethical issues and indicates the need to devise the education and training for clinicians on FMT. (shrink)

In this study, we propose and test the relationship between CSR and firm financial performance, how this relationship differs between firms led by CEOs with political connections and those led by CEOs without political connections, and how this relationship differs between state-owned firms and nonstate-owned firms. Based on a sample of 1645 Chinese listed firms during the period 2011 and 2020 (inclusive), we find that CSR has an inverted U-shaped relationship with firm financial performance. As the level of CSR increases (...) from slight to moderate, CSR is positively related to firm performance; as the level of CSR increases from moderate to great, CSR is negatively related to firm financial performance. Additionally, we find that this inverted U-shaped relationship differs between firms led by CEOs with political connections and those led by CEOs without political connections and differs between state-owned firms and nonstate-owned firms. That is, both the synergic effect (positive effect) of CSR on firm financial performance when the level of CSR is low and the competitive effect (negative effect) of CSR on firm financial performance when the CSR is high are more pronounced for firms led by CEOs without political connections and nonstate-owned firms than for firms led by CEOs with political connections and state-owned firms. The theoretical and managerial implications of these findings are discussed. (shrink)

Intuitionistic propositional logic with Galois negations ( $\mathsf {IGN}$ ) is introduced. Heyting algebras with Galois negations are obtained from Heyting algebras by adding the Galois pair $(\lnot,{\sim })$ and dual Galois pair $(\dot{\lnot },\dot{\sim })$ of negations. Discrete duality between GN-frames and algebras as well as the relational semantics for $\mathsf {IGN}$ are developed. A Hilbert-style axiomatic system $\mathsf {HN}$ is given for $\mathsf {IGN}$, and Galois negation logics are defined as extensions of $\mathsf {IGN}$. We give the bi-tense (...) logic $\mathsf {S4N}_t$ which is obtained from the minimal tense extension of the modal logic $\mathsf {S4}$ by adding tense operators. We give a new extended Gödel translation $\tau$ and prove that $\mathsf {IGN}$ is embedded into $\mathsf {S4N}_t$ by $\tau$. Moreover, every Kripke-complete Galois negation logic _L_ is embedded into its tense companion $\tau (L)$. (shrink)

A finitely alternative normal tense logic \ is a normal tense logic characterized by frames in which every point has at most n future alternatives and m past alternatives. The structure of the lattice \\) is described. There are \ logics in \\) without the finite model property, and only one pretabular logic in \\). There are \ logics in \\) which are not finitely axiomatizable. For \, there are \ logics in \\) without the FMP, and infinitely many pretabular (...) extensions of \. (shrink)

From the tape-recording of naturally occurring Chinese psychotherapy sessions, this article explores how repeated occurrences of resistance are managed in the course of interactional sequences and the participants’ actions within these sequences. By employing the methods of conversation analysis, we discuss the main discursive strategies employed by the clients to express their resistance and investigate how the therapist manages this. We find that clients show their resistance to the therapist’s questions in four ways: keeping silence, providing minimal response, making non-answer (...) responses, and being over-talkative. Persistent asking is the main technique we identify in the data for the therapist to manage the resistance; in the meantime, asking questions in a stepwise way, making requests after facing resistance to questions, active retreating and reformulating of the client’s words are employed as subsidiary techniques. The successful management of resistance leads to a smooth sequential development of the psychotherapy, while inappropriate strategies might result in a halt or even breakdown of the therapeutic work. In psychotherapy, resistance is a result of the shared interaction between client and therapist. It is such a complex issue that, in order to understand and manage it, we also take into consideration the broader social and cultural context in which it occurs. (shrink)

In this paper I have two main aims. My first aim is to introduce the notion of bounded emotionality. This notion is the analogue of that of bounded rationality in behavioural economics. Bounded rationality says, roughly, that human beings are cognitively limited with respect to their processing and memory capacities. Bounded emotionality says that we are limited in our emotional capabilities, notably in the intensity, duration, and possible combinations of our emotional states. Bounded rationality is a foundational notion in behavioural (...) economics and has played an important role in various fields of philosophy as well. In particular, in epistemology bounded rationality has been thought to have implications with respect to our doxastic norms. My second aim in this paper is to suggest that bounded emotionality also has an important role to play in philosophy. As a case in point, I discuss the implications that bounded emotionality has for our doxastic norms. In particular, I argue that one is not obligated to believe something or to stop holding a belief if one could not believe/fail to believe it without having an emotional response that exceeds one's bounded emotional capacities. (shrink)

Los discursos públicos que circulan sobre las matemáticas y su aprendizaje determinan el modo en que las familias y los alumnos dan sentido a sus experiencias escolares. En Estados Unidos, estos discursos pueden desempeñar un papel importante en el desarrollo de la política educativa pública debido al compromiso de los consejos escolares públicos de escuchar las voces de la comunidad, así como al reciente (aunque no nuevo) aumento de la organización de grupos de padres conservadores bien financiados que trabajan para (...) mantener -y exacerbar- la desigualdad de oportunidades educativas que persiste en este país. En este trabajo analizamos el discurso público en torno al aprendizaje de las matemáticas en una reunión del consejo escolar local de la ciudad de Nueva York. Utilizando herramientas de análisis de la interacción, examinamos el discurso en torno a una propuesta para restablecer la selección basada en exámenes para la admisión en la escuela secundaria. Delineamos dos características clave de los supuestos de "sentido común" en torno al aprendizaje de las matemáticas que circularon en esta reunión -los estudiantes de matemáticas permanecen en una trayectoria de aprendizaje unidimensional, y con diferentes tasas de avance- e investigamos cómo estos supuestos jugaron en la construcción de un mundo figurado de "matemáticas escolarizadas". Argumentamos que las consecuencias que se derivan necesariamente de estos supuestos de sentido común construyen las matemáticas como jerárquicas y fijas, situando a los alumnos en una trayectoria de aprendizaje unidimensional. Por último, situamos este conjunto de supuestos emergentes en el proyecto racial neoliberal y consideramos las formas en que configuran una imaginación particular de la escolarización y las matemáticas bajo el neoliberalismo. (shrink)

We argue that all general concepts are family resemblance concepts. These include concepts introduced by ostension, such as colour(s). Concepts of colour and of each of the specific colours are family resemblance concepts because similarities concerning an open‐ended range of colour or of appearance features crop up and disappear. After discussing the notion of “same colour” and Wittgenstein's use of the phrase “our colours”, we suggest family resemblance concepts in one tradition can often be extended to family resemblance concepts in (...) another tradition, illustrated by Wittgenstein's use of the words Spiel and “game”. (shrink)

Customer civility is an established construct in the study of ethical consumption. However, scholars have paid insufficient attention to customer civility in relation to the flourishing peer-to-peer economy. Therefore, the purpose of this article is to develop and test a theoretical framework which examines the antecedents of the customer civility in the P2P economy. We use social exchange theory to develop a model that posits customer interaction experiences with property owners, properties, and P2P platforms as antecedents of customer civility in (...) the P2P economy. Two studies were used to test our framework: Study 1 comprises a survey of Chinese customers ; Study 2 involves secondary data crawled from the Web site of Xiaozhu, one of China’s largest P2P accommodation platforms. OLS regression analysis was used for hypothesis testing. Results demonstrate three antecedents of customer civility in the P2P accommodation sector: interpersonal trust, property experience, and platform governance. In addition, the positive effect of interpersonal trust on customer civility is stronger when customers have high economic incentive, while the effect of property experience is significantly stronger when customers have low economic incentive. (shrink)

Peirce wrote in late 1901 a text on formal logic using a special Dragon-Head and Dragon-Tail notation in order to express the relation of logical consequence and its properties. These texts have not been referred to in the literature before. We provide a complete reconstruction and transcription of these previously unpublished sets of manuscript sheets and analyse their main content. In the reconstructed text, Peirce is seen to outline both a general theory of deduction and a general theory of consequence (...) relation. The two are the cornerstones of modern logic and have played a crucial role in its development. From the wider perspective, Peirce is led to these theories by three important generalizations: propositions to all signs, truth to scriptibility, and derivation to transformability. We provide an exposition of such proposed semiotic foundation for logical constants and point out a couple of further innovations in this rare text, including the sheet of assertion, correction as a dual of deduction and the nature of conditionals as variably strict conditionals. (shrink)

Based on the expanded theory of planned behavior, this study first explores the configuration relationship between founder management and innovation by using the fuzzy-set qualitative comparative analysis. Based on the theory of planned behavior, this study divides the behavior intention of founders into three categories: Attitude, subjective norm, and perceived behavior control. Using fsQCA, we found that there are two ways to achieve high innovation input of enterprises. In combination with the two ways, the factors such as male and highly (...) educated founder, and large firm size can effectively increase the innovation input of firms, which is consistent with the three aspects of the behavioral intention of the theory of planned behavior, and it proves that the theory of planned behavior can effectively explain the configuration relation between the founder and firm innovation. In addition, this study finds that the innovation output is different from the innovation input, is dependent on the innovation ability of the firm itself, and is less influenced by the external environment. (shrink)

ABSTRACTConsulting Heidegger's other texts composed during 1936–1942, this article employs a principle of charity and constructs a consistent discourse about an inceptual negativity Heidegger articulates through a confrontation with Hegel in GA 68. Heidegger deliberately differentiates his use of denial that bears Being-historical significance from Hegel's Negation that allegedly aims at synthesis or elevation as a dialectical movement. Being unsatisfied with his approach that remains entangled with metaphysics in the Contributions, Heidegger attempts to transform the question of the Nothing from (...) a subsidiary question to Beyng to an abyssal question. One needs to go under toward the Nothing in its concealed, conjoined, and most intimate relation to Beyng. The movement of going under is fundamentally significant for transitions that could occur from out of the history of Beyng. Never being the fullness of essence, the Nothing places a limit on Beyng, constantly thwarts its unfolding, and maint... (shrink)

Peirce introduced Existential Graphs in late 1896, and they were systematically investigated in his 1903 Lowell Lectures. Alpha graphs for classical propositional logic constitute the first part of EGs. The second and the third parts are the beta graphs for first-order logic and the gamma graphs for modal and higher-order logics, among others. As a logical syntax, EGs are two-dimensional graphs, or diagrams, in contrast to the linear algebraic notations. Peirce's theory of EGs is not only a theory of logical (...) syntax but also a proof theory for many logics. A set of transformation rules of graphs defines a proof system for a graphical logic. In this... (shrink)

Because they are key components of aircraft, improving the safety, reliability and economy of engines is crucial. To ensure flight safety and reduce the cost of maintenance during aircraft engine operation, a prognostics and health management system that focuses on fault diagnosis, health assessment, and life prediction is introduced to solve the problems. Predicting the remaining useful life is the most important information for making decisions about aircraft engine operation and maintenance, and it relies largely on the selection of performance (...) degradation features. The choice of such features is highly significant, but there are some weaknesses in the current algorithm for RUL prediction, notably, the inability to obtain tendencies from the data. Especially with aircraft engines, extracting useful degradation features from multisensor data with complex correlations is a key technical problem that has hindered the implementation of degradation assessment. To solve these problems, deep learning has been proposed in recent years to exploit multiple layers of nonlinear information processing for unsupervised self-learning of features. This paper presents a deep learning approach to predict the RUL of an aircraft engine based on a stacked sparse autoencoder and logistic regression. The stacked sparse autoencoder is used to automatically extract performance degradation features from multiple sensors on the aircraft engine and to fuse multiple features through multilayer self-learning. Logistic regression is used to predict the remaining useful life. However, the hyperparameters of the deep learning, which significantly impact the feature extraction and prediction performance, are determined based on expert experience in most cases. The grid search method is introduced in this paper to optimize the hyperparameters of the proposed aircraft engine RUL prediction model. An application of this method of predicting the RUL of an aircraft engine with a benchmark dataset is employed to demonstrate the effectiveness of the proposed approach. (shrink)

From the 1920s to the 1960s, Martin Heidegger on several occasions referred to the early Greeks’ encounter with what he called ‘the Asiatic’ (_das Asiatische_). Meanwhile, he was also concerned with a sort of ontological power of destruction and ruination that according to him should be understood in the Greek sense, which he also called _das Asiatische_. In this article, I first sketch the contributions made by Asian/African traditions to the origin of Greek philosophy and highlight Heidegger’s own recognition of (...) it in the 1920s. Second, I examine Nietzsche’s remarks bearing on the early Greeks’ intricate bond with the Asiatic, which is formulated in terms of a distinction between the ‘Dionysiac Greeks’ and the ‘Dionysiac barbarians.’ Third, I scrutinize Heidegger’s relevant statements—especially those in the 1930s—in the light of Nietzsche’s influence on him. I argue that two different meanings of the Asiatic are at play in Heidegger’s thought: One is the _Greek Asiatic_, the Being-historical Asiatic; The other is the _alien Asiatic_, ‘the most foreign and most difficult’ Asiatic, which has been overcome by the Greeks. Fourth, I show that in the 1960s Heidegger seems to consider a sort of conflation of these two meanings—a conflation that remains fraught with tension. (shrink)

Background: Stigma is considered a major barrier to accessing healthcare services by female sex workers. Current knowledge of nurses’ attitudes appears to imply a stigma toward female sex workers. But in-depth understanding of their perceptions is scarce. Furthermore, factors that inform a conceptual understanding of how this occurs are lacking. Objectives: The study aimed to explore nurses’ attitudes toward female sex workers and factors affecting caring for female sex workers. Research design: This was a qualitative study. A content analysis approach (...) was adopted in analyzing the data. Participants and research context: Thirty-three practicing nurses participated in seven semi-structured focus group interviews and three key informants participated in three individual interviews in Hong Kong. Ethical considerations: This study was approved by the Ethics Committee of one university in Hong Kong. Findings: The findings revealed three themes: (1) accept, stigmatize, or against sex work; (2) reluctance, hesitation, or willingness to care for female sex workers; and (3) factors affecting the care of female sex workers. Discussion and conclusion: This study found that nurses held different attitudes toward female sex workers, and they experienced feelings of reluctance, hesitation, or willingness to care for female sex workers. Multi-level factors could affect their level of comfort of caring for female sex workers. Intervention should be developed to encourage health professionals to examine their personal views toward female sex workers introspectively, how their attitude may have affected the provision of quality services, and to enhance the provision of sensitive non-discriminative services to female sex workers. (shrink)

It was meaningful to predict the customers' decision-making behavior in the field of market. However, due to individual differences and complex, non-linear natures of the electroencephalogram signals, it was hard to classify the EEG signals and to predict customers' decisions by using traditional classification methods. To solve the aforementioned problems, a recurrent t-distributed stochastic neighbor embedding neural network was proposed in current study to classify the EEG signals in the designed brand extension paradigm and to predict the participants' decisions. The (...) recurrent t-SNE neural network contained two steps. In the first step, t-SNE algorithm was performed to extract features from EEG signals. Second, a recurrent neural network with long short-term memory layer, fully connected layer, and SoftMax layer was established to train the features, classify the EEG signals, as well as predict the cognitive performance. The proposed network could give a good prediction with accuracy around 87%. Its superior in prediction accuracy as compared to a recurrent principal component analysis network, a recurrent independent component correlation algorithm [independent component analysis ] network, a t-SNE support vector machine network, a t-SNE back propagation neural network, a deep LSTM neural network, and a convolutional neural network were also demonstrated. Moreover, the performance of the proposed network with different activated channels were also investigated and compared. The results showed that the proposed network could make a relatively good prediction with only 16 channels. The proposed network would become a potentially useful tool to help a company in making marketing decisions and to help uncover the neural mechanisms behind individuals' decision-making behavior with low cost and high efficiency. (shrink)

With the advancement of human microbiome research, it is inevitable that a growing number of biobanks will include a collection of microbiota specimens to characterize the microbial communities that inhabit the human body and explore the relationships between the microbiota and their human hosts. Biobanks of human microbiota and their associated genetic information may become a valuable health resource. But, this area of research also presents ethical and social problems, some of which are distinct from those faced by biobanks that (...) store human tissue samples. This paper examines four core issues which are considered highly relevant to microbiome biobanking: the nature of human microbiome samples and how different understandings have an impact on benefit/risk evaluation, privacy, informed consent, and returning the result to participants. We argue that these issues should be addressed early on in microbiome research projects and also call for adjusting or developing new governance mechanism to better accommodate these changes. (shrink)

One fundamental assumption often made in the literature on unawareness is that risk preferences are invariant to changes of awareness. We study how exposure to unawareness affects choices under risk. Participants in our experiment choose repeatedly between varying sure outcomes and a lottery in three phases. All treatments are exactly identical in phase 1 and phase 3, but differ in phase 2. There are five different treatments pertaining to the lottery faced in phase 2: The control treatment, the treatment with (...) awareness of unawareness of lottery outcomes but known number of outcomes, the treatment with awareness of unawareness of outcomes but with unknown number of outcomes, the treatment with unawareness of unawareness of some outcomes, and the treatment with an ambiguous lottery. We study both whether behavior differs in phase 3 across treatments and whether differences of subjects’ behavior between phases 1 and phase 3 differ across treatments. We observe no significant treatment effects. (shrink)

In this paper, the Internet of Things with intelligent face perception and processing function is used to supervise online English teaching. In the intelligent learning environment, learners mainly learn by watching the information presentation screen of the learning content, i.e., the learning screen, which is the main environment for learners to learn and is the main channel for information interaction between learners and the learning content. The color matching, layout, graphic decoration, and background texture of the learning screen have a (...) significant impact on learners’ emotions, interests, motivation, and effect in the learning process. On the contrary, the accurate identification of learners’ emotions is the basis for building a harmonious emotional interaction in the wisdom learning environment and is an important means to judge learners’ learning status, which is of great significance to promote learners’ wisdom learning. In addition to providing learners with personalized learning contents and learning paths, the learning images presented by the intelligent learning environment should also be compatible with learners’ emotional states and visual emotional preferences and can play a role in regulating and stimulating learners’ learning emotions. The system works well in the testing process, which verifies the feasibility, rationality, and effectiveness of our application of face perception to online teaching effectiveness monitoring, and can be combined with the old result-oriented effectiveness monitoring method for online teaching, with certain theoretical research significance and practical application value. (shrink)