Epistemology, Philosophy of Science, and Virtue

2021 ◽  
pp. 149-160
Author(s):  
Emanuele Ratti

This chapter offers an overview of how virtue-based concepts have been used by philosophers of science to shed light on epistemic aspects of science. In the epistemology of science, the word virtue has referred to two different concepts. First, virtue can be understood as excellence, where excellence is a quality of a model, a theory, or a hypothesis. Second, virtue can be understood more narrowly as a stable character trait and/or disposition of scientists themselves. The first meaning is connected to the long-standing debate on the qualities that make a scientific theory a good scientific theory. The second meaning is connected to a much more recent conversation exploring the connections between virtue epistemology and philosophy of science. I explore how these two meanings of virtue have been developed, and I highlight underexplored areas that can advance our understanding of the relation between virtue theory and philosophy of science.

2020 ◽  
pp. 205-222
Author(s):  
Ernest Sosa

Virtue epistemology takes its own approach to the questions of traditional epistemology. In what follows, a fresh treatment of philosophical skepticism is enabled by a distinctive notion of default assumptions, along with an analogy between epistemic and athletic performance, and between episteme and praxis more generally. The novel response to the skeptics will explain how they’ve mistaken what’s required for the epistemic quality of ordinary judgments and beliefs. Our virtue epistemological approach relies on a category of default assumptions that is different from any “default justification” or “entitlement” already in the literature, if only because ours is embedded in virtue theory and is to be understood thereby. Wittgenstein comes closest in On Certainty, though his own ideas are also unhinged from any broader virtue epistemology.


Author(s):  
Stéphane A. Dudoignon

Since 2002, Sunni jihadi groups have been active in Iranian Baluchistan without managing to plunge the region into chaos. This book suggests that a reason for this, besides Tehran’s military responses, has been the quality of Khomeini and Khamenei’s relationship with a network of South-Asia-educated Sunni ulama (mawlawis) originating from the Sarbaz oasis area, in the south of Baluchistan. Educated in the religiously reformist, socially conservative South Asian Deoband School, which puts the madrasa at the centre of social life, the Sarbazi ulama had taken advantage, in Iranian territory, of the eclipse of Baluch tribal might under the Pahlavi monarchy (1925-79). They emerged then as a bulwark against Soviet influence and progressive ideologies, before rallying to Khomeini in 1979. Since the turn of the twenty-first century, they have been playing the role of a rampart against Salafi propaganda and Saudi intrigues. The book shows that, through their alliance with an Iranian Kurdish-born Muslim-Brother movement and through the promotion of a distinct ‘Sunni vote’, they have since the early 2000s contributed towards – and benefitted from – the defence by the Reformist presidents Khatami (1997-2005) and Ruhani (since 2013) of local democracy and of the minorities’ rights. They endeavoured to help, at the same time, preventing the propagation of jihadism and Sunni radicalisation to Iran – at least until the ISIS/Daesh-claimed attacks of June 2017, in Tehran, shed light on the limits of the Islamic Republic’s strategy of reliance on Deobandi ulama and Muslim-Brother preachers in the country’s Sunni-peopled peripheries.


Author(s):  
Juan P. Martínez ◽  
Inmaculada Méndez ◽  
Esther Secanilla ◽  
Ana Benavente ◽  
Julia García Sevilla

Starting from previous studies in professional caregivers of people with dementia and other diseases in institutionalized centers of different regions, the aim of this study was to compare burnout levels that workers present depending on the center, to create a caregiver profile with high professional accomplishment and to describe the quality of life that residents perceive Murcia and Barcelona. The instruments used were the Maslach Burnout Inventory (MBI), the Professional Caregiver Survey developed ad hoc and the Brief Questionnaire of Quality of Life (CUBRECAVI in Spanish) on residents. The results show, on the one hand, that levels of professional accomplishment may be paradoxically higher in the case of catastrophe and, on the other hand, the 98.2% of users are satisfied with the residence in which is located and 81.8% with the manner in which occupy the time. The conclusions that are extrapolated from the study shed light on the current situation of workers and residents and the influence that an earthquake can have on them.


Author(s):  
Paulo Beer

Even beyond the dramatic social and health consequences of the COVID-19 pandemic, one can affirm that the manner in which the pandemic was and is being handled in Brazil involves more than mere questions of public health. This article focuses on the negationist discourse that emerged in Brazil, and proposes that its roots are to be found in a previous process of dismantling established knowledge and identifications. This process is observed in the government’s handling of the pandemic. To support this idea, we refer to two main clinical and theoretical frameworks, the first of which involves a psychoanalytic understanding of the place of truth in discursivity and in identification processes; this will be employed to shed light on a particular functioning of negationist discourses. Second, the idea of historical ontology is introduced from the philosophy of science to gain a further understanding of the effects of this process on identification.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Salvatore Citraro ◽  
Giulio Rossetti

AbstractGrouping well-connected nodes that also result in label-homogeneous clusters is a task often known as attribute-aware community discovery. While approaching node-enriched graph clustering methods, rigorous tools need to be developed for evaluating the quality of the resulting partitions. In this work, we present X-Mark, a model that generates synthetic node-attributed graphs with planted communities. Its novelty consists in forming communities and node labels contextually while handling categorical or continuous attributive information. Moreover, we propose a comparison between attribute-aware algorithms, testing them against our benchmark. Accordingly to different classification schema from recent state-of-the-art surveys, our results suggest that X-Mark can shed light on the differences between several families of algorithms.


2019 ◽  
Author(s):  
Mark K Ho ◽  
David Abel ◽  
Tom Griffiths ◽  
Michael L. Littman

Agents that can make better use of computation, experience, time, and memory can solve a greater range of problems more effectively. A crucial ingredient for managing such finite resources is intelligently chosen abstract representations. But, how do abstractions facilitate problem solving under limited resources? What makes an abstraction useful? To answer such questions, we review several trends in recent reinforcement-learning research that provide insight into how abstractions interact with learning and decision making. During learning, abstraction can guide exploration and generalization as well as facilitate efficient tradeoffs---e.g., time spent learning versus the quality of a solution. During computation, good abstractions provide simplified models for computation while also preserving relevant information about decision-theoretic quantities. These features of abstraction are not only key for scaling up artificial problem solving, but can also shed light on what pressures shape the use of abstract representations in humans and other organisms.


2021 ◽  
Vol 12 ◽  
Author(s):  
Ilaria Righi ◽  
Valentina Vaira ◽  
Letizia Corinna Morlacchi ◽  
Giorgio Alberto Croci ◽  
Valeria Rossetti ◽  
...  

Chronic lung allograft dysfunction (CLAD) is the main cause of poor survival and low quality of life of lung transplanted patients. Several studies have addressed the role of dendritic cells, macrophages, T cells, donor specific as well as anti-HLA antibodies, and interleukins in CLAD, but the expression and function of immune checkpoint molecules has not yet been analyzed, especially in the two CLAD subtypes: BOS (bronchiolitis obliterans syndrome) and RAS (restrictive allograft syndrome). To shed light on this topic, we conducted an observational study on eight consecutive grafts explanted from patients who received lung re-transplantation for CLAD. The expression of a panel of immune molecules (PD1/CD279, PDL1/CD274, CTLA4/CD152, CD4, CD8, hFoxp3, TIGIT, TOX, B-Cell-Specific Activator Protein) was analyzed by immunohistochemistry in these grafts and in six control lungs. Results showed that RAS compared to BOS grafts were characterized by 1) the inversion of the CD4/CD8 ratio; 2) a higher percentage of T lymphocytes expressing the PD-1, PD-L1, and CTLA4 checkpoint molecules; and 3) a significant reduction of exhausted PD-1-expressing T lymphocytes (PD-1pos/TOXpos) and of exhausted Treg (PD-1pos/FOXP3pos) T lymphocytes. Results herein, although being based on a limited number of cases, suggest a role for checkpoint molecules in the development of graft rejection and offer a possible immunological explanation for the worst prognosis of RAS. Our data, which will need to be validated in ampler cohorts of patients, raise the possibility that the evaluation of immune checkpoints during follow-up offers a prognostic advantage in monitoring the onset of rejection, and suggest that the use of compounds that modulate the function of checkpoint molecules could be evaluated in the management of chronic rejection in LTx patients.


Author(s):  
Ali Gezer

Delay related metrics are significant quality of service criteria for the performance evaluation of networks. Almost all delay related measurement and analysis studies take into consideration the reachable sources of Internet. However, unreachable sources might also shed light upon some problems such as worm propagation. In this study, we carry out a delay measurement study of unreachable destinations and analyse the delay dynamics of unreachable nodes. 2. Internet Control Message Protocol (ICMP) destination unreachable Internet Control Message Protocol-Destination Unreachable (ICMP T3) packets are considered for the delay measurement according to their code types which shows network un reach ability, host un reach ability, port un reach ability, etc. Measurement results show that unreachable sources exhibit totally different delay behaviour compared to reachable IP hosts. A significant part of the unreachable hosts experiences extra 3 seconds Round Trip Time (RTT) delay compared to accessible hosts mostly due to host un reach ability. It is also seen that, approximately 79% of destination un reach ability causes from host un reach ability. Obtained Hurst parameter estimation results reveal that unreachable host RTTs show lower Hurst degree compared to reachable hosts which is approximately a random behaviour. Unreachable sources exhibit totally different distributional characteristic compared to accessible ones which is best fitted with Phased Bi-Exponential distribution.


Dialogue ◽  
1976 ◽  
Vol 15 (4) ◽  
pp. 679-685
Author(s):  
Myles Brand

It is difficult to understand why this volume is named New Essays in the Philosophy of Mind. Some of the essays are better classified as metaphysics, some as philosophy of science, and at least one as philosophy of language. But no matter, the name of the volume is unimportant: it is the contents that count. And the contents are very interesting. The general quality of the papers is high, higher than is often found in contemporary journals. The articles all share the methodological trait of being well-argued, and perhaps it is this trait more than anything else that unifies the volume. In what follows, I shall comment briefly on two articles on action theory, and then even more briefly on the remaining six papers.


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