Necessary Existence breaks ground on one of the deepest questions anyone ever asks: why is there anything? Pruss and Rasmussen present an original defence of the hypothesis that there is a necessarily existing being capable of providing an ultimate foundation for the existence of all things.

The posterior cortex, hippocampus, and prefrontal cortex in the Leabra architecture are specialized in terms of various neural parameters, and thus are predilections for learning and processing, but domain-general in terms of cognitive functions such as face recognition. Also, these areas are not encapsulated and violate Fodorian criteria for modularity. Anderson's terminology obscures these important points, but we applaud his overall message.

ai Diminished gaze fixation is one of the core features of autism and has been proposed to be associated with abnormalities in the neural circuitry of affect. We tested this hypothesis in two separate studies using eye tracking while measuring functional brain activity during facial discrimination tasks in individuals with autism and in typically developing individuals. Activation in the fusiform gyrus and amygdala was strongly and positively correlated with the time spent fixating the eyes in the autistic group in both (...) studies, suggesting that diminished gaze fixation may account for the fusiform hypoactivation to faces commonly reported in autism. In addition, variation in eye fixation within autistic individuals was strongly and positively associated with amygdala activation across both studies, suggesting a heightened emotional response associated with gaze fixation in autism. (shrink)

Achieving space situational awareness requires, at a minimum, the identification, characterization, and tracking of space objects. Leveraging the resultant space object data for purposes such as hostile threat assessment, object identification, and conjunction assessment presents major challenges. This is in part because in characterizing space objects we reference a variety of identifiers, components, subsystems, capabilities, vulnerabilities, origins, missions, orbital elements, patterns of life, operational processes, operational statuses, and so forth, which tend to be defined in highly heterogeneous and sometimes inconsistent (...) ways. The Space Domain Ontologies are designed to provide a consensus-based realist framework for formulating such characterizations in a way that is both consistent and computable. Space object data are aligned with classes and relations in a suite of ontologies built around the existing Space Object Ontology. They are stored in a dynamically updated Resource Description Framework triple store, which can be queried to support space situational awareness and the needs of spacecraft operators and analysts. This paper provides an overview of the Space Domain Ontologies and their development and use. It presents the motivation for and advantages of the Space Domain Ontologies, including the benefits they provide for enhancing and maintaining long-term space situational awareness. (shrink)

Achieving space domain awareness requires the identification, characterization, and tracking of space objects. Storing and leveraging associated space object data for purposes such as hostile threat assessment, object identification, and collision prediction and avoidance present further challenges. Space objects are characterized according to a variety of parameters including their identifiers, design specifications, components, subsystems, capabilities, vulnerabilities, origins, missions, orbital elements, patterns of life, processes, operational statuses, and associated persons, organizations, or nations. The Space Object Ontology provides a consensus-based realist framework (...) for formulating such characterizations in a computable fashion. Space object data are aligned with classes and relations in the Space Object Ontology and stored in a dynamically updated Resource Description Framework triple store, which can be queried to support space domain awareness and the needs of spacecraft operators. This paper presents the core of the Space Object Ontology, discusses its advantages over other approaches to space object classification, and demonstrates its ability to combine diverse sets of data from multiple sources within an expandable framework. Finally, we show how the ontology provides benefits for enhancing and maintaining longterm space domain awareness. (shrink)

This book provides an accessible, critical introduction to the three main approaches that dominated work in the philosophy of mathematics during the twentieth century: logicism, intuitionism and formalism.

Cosmetic dentistry is a divisive discipline. Within discourses that raise questions of the purpose of the dental profession, cosmetic dentistry is frequently criticised on the basis of it being classified as a non‐therapeutic intervention. This article re‐evaluates this assertion through examination of ethics of care of the self, healthcare definitions and the social purpose of dentistry, finding the traditional position to be wanting in its conclusions. The slide of dentistry from a healthcare vocation towards being a predominantly business‐focused interaction between (...) clinician and consumer conflicts with traditional notions of dentistry as a profession. Whilst it is undeniable that cosmetic dental treatment particularly lends itself to the commercial paradigm, this is not exclusive to this area of professional practice. The cultural basis of dental appearance and the potential of the dental profession to exert coercive pressure upon the public to undergo treatment that is based upon social norms is discussed. This essay concludes that cosmetic dentistry is undeniably part of the professional purpose of 21st Century dentistry. However, the caveat that may be placed upon this, is that this status is conditional upon the professional conduct of dental practitioners remaining resilient to commercial practices not compatible with professional obligations. (shrink)

Amodel for inventing newsignals is introduced in the context of sender–receiver games with reinforcement learning. If the invention parameter is set to zero, it reduces to basic Roth–Erev learning applied to acts rather than strategies, as in Argiento et al. (Stoch. Process. Appl. 119:373–390, 2009). If every act is uniformly reinforced in every state it reduces to the Chinese Restaurant Process—also known as the Hoppe–Pólya urn—applied to each act. The dynamics can move players from one signaling game to another during (...) the learning process. Invention helps agents avoid pooling and partial pooling equilibria. (shrink)

Commercialisation and consumerism have had lasting and profound effects upon the nature of oral health and how dental services are provided. The stigma of a spoiled dental appearance, along with the attraction of the smile as a symbol of status and prestige, places the mouth and teeth as an object and product to be bought and sold. How the dental profession interacts with this acquired status of the mouth has direct implications for the professional status of dentistry and the relationship (...) between the profession and society. This essay examines the mouth’s developing position as a symbol of status and prestige and how the dental profession’s interaction and response to this may have important effects on the nature of dentistry’s social contract with society. As rates of dental disease reduce in higher socioeconomic groups, dentistry is experiencing a reorientation from being positioned within a therapeutic context, to be increasingly viewed as body work. This is not in of itself problematic; as a discipline dentistry places a very high value upon the provision of enhanced or improved aesthetics. This position changes when the symbolic exchange value of an aesthetic smile becomes the main motivation for treatment, encouraging a shift towards a commercialised model of practice that attenuates professional altruism. The dental profession should not welcome the association of the mouth as a status and prestige symbol lightly; this article examines how this paradigm shift might impact upon the social contract and dentistry’s professional status. (shrink)

This Editorial reports an exchange in form of a comment and reply on the article “History and Nature of the Jeffreys–Lindley Paradox” (Arch Hist Exact Sci 77:25, 2023) by Eric-Jan Wagenmakers and Alexander Ly.

Despite promising early work into the role of immune cells such as eosinophils in adipose tissue (AT) homeostasis, recent findings revealed that elevating the number of eosinophils in AT alone is insufficient for improving metabolic impairments in obese mice. Eosinophils are primarily recognized for their role in allergic immunity and defence against parasitic worms. They have also been detected in AT and appear to contribute to adipose homeostasis and drive energy expenditure, but the underlying mechanisms remain elusive. It has long (...) been recognized that immune cells such as macrophages respond to external signals to regulate adipose homeostasis and energy balance, however, less is known about the relevance of eosinophil activity in AT. As the authors propose in this review, given recent debate over the relative importance of their tissue‐specific abundance, the stage is now set for exploring the functionality and activation states of AT eosinophils. (shrink)

Twilight Zone and Philosophy attempts to bring the insights and paradoxes of Rod Serling's project to contemporary audiences through a variety of philosophical perspectives"--Publisher.

Over the course of human history, the sciences, and biology in particular, have often been manipulated to cause immense human suffering. For example, biology has been used to justify eugenic programs, forced sterilization, human experimentation, and death camps—all in an attempt to support notions of racial superiority. By investigating the past, the contributors to _Biology and Ideology from Descartes to Dawkins_ hope to better prepare us to discern ideological abuse of science when it occurs in the future. Denis R. (...) class='Hi'>Alexander and Ronald L. Numbers bring together fourteen experts to examine the varied ways science has been used and abused for nonscientific purposes from the fifteenth century to the present day. Featuring an essay on eugenics from Edward J. Larson and an examination of the progress of evolution by Michael J. Ruse, _Biology and Ideology_ examines uses both benign and sinister, ultimately reminding us that ideological extrapolation continues today. An accessible survey, this collection will enlighten historians of science, their students, practicing scientists, and anyone interested in the relationship between science and culture. (shrink)

First Published in 1998. Routledge is an imprint of Taylor & Francis, an informa company.

BackgroundWhat can the analysis of the evolution of a code of ethics tell us about the dental profession and the association that develops it? The establishment of codes of ethics are foundational events in the social history of a profession. Within these documents it is possible to find statements of values and culture that serve a variety of purposes. Codes of ethics in dentistry have not frequently presented as the subjects of analyses despite containing rich information about the priorities and (...) anxieties within the profession’s membership at the time that the code was written.Main textThis essay uses critical discourse analysis to explore the 2012 and 2018 versions of the Code of Ethics produced by the New South Wales Branch of the Australian Dental Association. This method of discourse analysis examines contradictions between the discourses within the codes and how these relate to broader social realties that surround the dental profession in New South Wales. By analysing the 2012 and 2018 codes together, it is possible to understand how the dental profession views its commitments to society as established through the social contract. Through this assessment, it will be demonstrated that both codes suffer due to their failure to consider the public as a key stakeholder in the creation and curation of the Code of Ethics and how this this relates intimately with the social contract between the profession and the public.ConclusionWithout the public being the central consideration, both codes amount to declarations of professional privilege and dominance. Although the more recent 2018 Code of Ethics demonstrates insight into the changes in public trust placed in the professions, this analysis shows that that the current code of ethics is still reluctant to recognise and engage with the public as an equal stakeholder in the planning and provision of oral health care and the development of the profession’s values and cultural trajectory. (shrink)

Bioethics, Volume 35, Issue 7, Page 646-651, September 2021.

An increasing number of research teams are investigating the efficacy of brain-computer interface (BCI)-mediated interventions for promoting motor recovery following stroke. A growing body of evidence suggests that of the various BCI designs, most effective are those that deliver functional electrical stimulation (FES) of upper extremity (UE) muscles contingent on movement intent. More specifically, BCI-FES interventions utilize algorithms that isolate motor signals—user-generated intent-to-move neural activity recorded from cerebral cortical motor areas—to drive electrical stimulation of individual muscles or muscle synergies. BCI-FES (...) interventions aim to recover sensorimotor function of an impaired extremity by facilitating and/or inducing long-term motor learning-related neuroplastic changes in appropriate control circuitry. We developed a non-invasive, electroencephalogram (EEG)-based BCI-FES system that delivers closed-loop neural activity-triggered electrical stimulation of targeted distal muscles while providing the user with multimodal sensory feedback. This BCI-FES system consists of three components: (1) EEG acquisition and signal processing to extract real-time volitional and task-dependent neural command signals from cerebral cortical motor areas, (2) FES of muscles of the impaired hand contingent on the motor cortical neural command signals, and (3) multimodal sensory feedback associated with performance of the behavioral task, including visual information, linked activation of somatosensory afferents through intact sensorimotor circuits, and electro-tactile stimulation of the tongue. In this report, we describe device parameters and intervention protocols of our BCI-FES system which, combined with standard physical rehabilitation approaches, has proven efficacious in treating UE motor impairment in stroke survivors, regardless of level of impairment and chronicity. (shrink)

In this paper we pay attention to the inconsistency in the derivation of the symmetric electromagnetic energy–momentum tensor for a system of charged particles from its canonical form, when the homogeneous Maxwell’s equations are applied to the symmetrizing gauge transformation, while the non-homogeneous Maxwell’s equations are used to obtain the motional equation. Applying the appropriate non-homogeneous Maxwell’s equations to both operations, we obtained an additional symmetric term in the tensor, named as “compensating term”. Analyzing the structure of this “compensating term”, (...) we suggested a method of “gauge renormalization”, which allows transforming the divergent terms of classical electrodynamics (infinite self-force, self-energy and self-momentum) to converging integrals. The motional equation obtained for a non-radiating charged particle does not contain its self-force, and the mass parameter includes the sum of mechanical and electromagnetic masses. The motional equation for a radiating particle also contains the sum of mechanical and electromagnetic masses, and does not yield any “runaway solutions”. It has been shown that the energy flux in a free electromagnetic field is guided by the Poynting vector, whereas the energy flux in a bound EM field is described by the generalized Umov’s vector, defined in the paper. The problem of electromagnetic momentum is also examined. (shrink)

The massive expansion of US higher education after World War II is a sociological puzzle: a spectacular feat of state capacity-building in a highly federated polity. Prior scholarship names academic leaders as key drivers of this expansion, yet the conditions for the possibility and fate of their activity remain under-specified. We fill this gap by theorizing what Randall Collins first callededucational entrepreneurshipas a special kind of strategic action in the US polity. We argue that the cultural authority and organizational centrality (...) of universities in the US national context combine with historical contingency to episodically produce conditions under which academic credentials can be made viable solutions to social problems. We put our theorization to the test by revisiting and extending a paradigmatic case: the expansion of engineering education at Stanford University between 1945 and 1969. Invoking several contemporaneous and subsequent cases, we demonstrate the promise of theorizing educational expansion as an outcome of strategic action by specifically located actors over time. (shrink)

Late Edmund Husserl’s examination of the crisis of the European sciences is the point of departure of this paper. Husserl’s views about wrong objectivisation and naturalization of reason in science and philosophy have prepared the ground for dissatisfaction with reason in various trends of 20th century Social and Political Philosophy. This intellectual climate has naturally bred the radical criticism against the social project of Enlightenment practiced by the first generation Frankfurt School. Later on, the Modern reason misfortunes in social and (...) political sphere are epitomized by Emanuel Levinas’ uprising against fundamentalontology for the sake of responsibility to the Other as well as by Julia Kristeva’s appeal to reestablish the social contract on new sensibility and new rationality. Finally, Jean Boaudrillard puts the univocal diagnosis that reason has surrendered to the code of consumerist simulacrum. In the second part of the paper, some suggestions proposed by the above philosophers (except for Baudrillard) about resolving the deadlock prepared by the Modern reason are viewed briefly. A conclusion is made that Baudrillard’s pessimistic position seems to be the most plausible and relevant in the current socio‐political and philosophical climate. (shrink)

The purpose of the present essay is to explain how the basic notions of Modern philosophy, forming Descartes’ optimistic attitude towards knowledge and human relations, were altered in order to be critically implemented into Vico’s more sober teaching. Several decades after Descartes took up the fight against skepticism, an Italian thinker, Giambattista Vico, critically approached the Cartesian project of Modernity. While Descartes believed that the essence of a human being consists in applying reason properly and using free will according to (...) its guidance in order to achieve the greatest success in science, mathematics, and philosophy, Vico insisted that human imagination and ingenuity ought to be directed to the humanities and legal studies and should aim at practical results. This was the eighteenth century Humanistic reply to Descartes. (shrink)