The present collection is the very first contribution of this type in the field of sparse recovery. Compressed sensing is one of the important facets of the broader concept presented in the book, which by now has made connections with other branches such as mathematical imaging, inverse problems, numerical analysis and simulation. The book consists of four lecture notes of courses given at the Summer School on "Theoretical Foundations and Numerical Methods for Sparse Recovery" held at the Johann Radon Institute (...) for Computational and Applied Mathematics in Linz, Austria, in September 2009. This unique collection will be of value for a broad community and may serve as a textbook for graduate courses. (shrink)

Lettura prospettica di un caposaldo del pensiero hobbesiano: il sorgere del rapporto tra l'uomo ed il potere, tra la naturale condizione umana e la nozione di civiltà, attraverso due frammenti particolarmente rappresentativi della concezione hobbesiana del passaggio dallo stato di natura alla civiltà: il tredicesimo capitolo del Leviathan, sulla condizione naturale dell'uomo, ed il quinto capitolo, sulle cause ed origini della civitas, del De cive, giacché la mera esistenza dell'uomo ed il suo riconoscimento di una legge naturale, a giudizio di (...) Hobbes, non implica affatto necessariamente una qualsiasi forma consolidata di organizzazione sociale. Sebbene il De cive (pubblicato in latino nel 1642 e, in inglese, nel 1651) preceda cronologicamente il Leviathan (pubblicato, viceversa, dapprima in inglese, nel 1651, poi in latino, nel 1668), nell'ordine logico dell'esposizione qui presentata, il brano del Leviathan può essere considerato propedeutico al quinto capitolo del De cive, delineandone i presupposti, segnatamente la condizione di continuo pericolo per tutti causata dallo stato generale di reciproca guerra, che costituisce forse l'aspetto più noto (e frainteso) del pensiero hobbesiano. Per una migliore comprensione dei testi e delle differenti (spesso opposte) interpretazioni cui hanno dato vita, si è ritenuto di proporre, per quanto concerne i brani di Hobbes, tanto la loro traduzione in lingua italiana quanto le stesure originali in latino e inglese, presentate con i testi a fronte; tale scelta fornisce l'opportunità di osservare l'accurata scelta di alcuni dei vocaboli chiave della filosofia di Hobbes, la cui trasposizione da una lingua all'altra è stata spesso causa di fraintendimenti o volgarizzazioni in tutto o in parte ingiustificate. Allo scopo di offrire una più completa prospettiva del pensiero hobbesiano delineato nei brani selezionati, si è ritenuto di affiancare ad essi dei frammenti di interpreti novecenteschi (con delle sintetiche schede bio-bibliografiche) di alcuni concetti formulati da Hobbes e, segnatamente, di F. Tönnies, M. Horkheimer, L. Strauss, C. Schmitt, T. Parsons, N. Bobbio, H. Warrender. (shrink)

This paper investigates some core aspects of Guy de La Brosse’s botanical work. In the first section, the focus is on the epistemological principles of La Brosse’s botany by analyzing the first and second book of the treatise De la nature, vertu et utilité des plantes. In the second section, the author discusses the role of Paracelsus’s chemistry in La Brosse’s work, with a particular attention to the third book of the De la nature. The final section deals with La (...) Brosse’s interest in the visualization of plants. Here, the author provides the transcription and first Italian translation of a short manuscript related to Abraham Bosse’s engravings for La Brosse’s unfinished book Icones posthumae. (shrink)

Cooperatives are facing the challenge to be competitive in the market, without losing their traditional values of mutuality and democracy. To do that, they need to re-construct open and participative dialogue with their employees and members based on more democratic forms of communication and engagement. From this point of view, the measurement and communication of sustainability aspects may allow a dialogue to be mobilized with shareholders and stakeholders without losing the attention on competitive factors. Based on these premises, the article (...) analyses the experience of a 5-year action research project , carried out within Unicoop Tirreno, an Italian consumers' cooperative, and aimed to implement different tools for sustainability accounting and to embrace a more open dialogue with stakeholders, in particular with employees and members. In this process of change, the tools implemented for sustainability accounting played a key role in supporting the cooperative to reinterpret its own values and in stimulating a new and participative management approach. The results indicate a virtuous circle between the management and measurement of cooperative principles and the management and measurement of sustainability issues. (shrink)

Frailty is an age-related dynamic status, characterised by a reduced resistance to stressors due to the cumulative decline of multiple physiological systems. Several researches have highlighted a relationship between physical frailty and cognitive decline; however, the role of specific cognitive domains has not been deeply clarified yet. Current studies have hypothesised that physical frailty and neuropsychological deficits may share systemic inflammation and increased oxidative stress in different neurodegenerative disorders, such as Alzheimer’s and Parkinson’s disease. However, the role of the executive (...) dysfunction should be investigated in a more detailed way using a multidimensional approach. With this aim, we conducted a review of the literature on the few experimental articles published to discuss the existence of a relationship between frailty and cognitive impairment in neurocognitive disorders, particularly focusing on the domain of executive dysfunction. The data suggest that physical frailty and cognitive decline, especially executive dysfunction, are two aspects strongly linked in mild and major neurocognitive disorders due to Alzheimer's and Parkinson's disease. In light of this, a new framework linking ageing, cognitive decline, and neurodegenerative diseases is needed. In order to analyse the effects that ageing processes have on neural decline and neurocognitive disease, and to identify relevant groups of users and patients, future longitudinal studies should adopt a multidimensional approach, in the field of primary prevention and in the continuum from mild to major neurocognitive disorder. (shrink)

Decision-making assisted by algorithms developed by machine learning is increasingly determining our lives. Unfortunately, full opacity about the process is the norm. Would transparency contribute to restoring accountability for such systems as is often maintained? Several objections to full transparency are examined: the loss of privacy when datasets become public, the perverse effects of disclosure of the very algorithms themselves, the potential loss of companies’ competitive edge, and the limited gains in answerability to be expected since sophisticated algorithms usually are (...) inherently opaque. It is concluded that, at least presently, full transparency for oversight bodies alone is the only feasible option; extending it to the public at large is normally not advisable. Moreover, it is argued that algorithmic decisions preferably should become more understandable; to that effect, the models of machine learning to be employed should either be interpreted ex post or be interpretable by design ex ante. (shrink)

Topics in Cognitive Science, Volume 14, Issue 1, Page 143-162, January 2022.

Stoicism Stoicism originated as a Hellenistic philosophy, founded in Athens by Zeno of Citium, c. 300 B.C.E. It was influenced by Socrates and the Cynics, and it engaged in vigorous debates with the Skeptics, the Academics, and the Epicureans. It moved to Rome where it flourished during the period of the Empire, … Continue reading Stoicism →.

In this paper a new trajectory-based representation to non-relativistic quantum mechanics is formulated. This is ahieved by generalizing the notion of Lagrangian path which lies at the heart of the deBroglie-Bohm “ pilot-wave” interpretation. In particular, it is shown that each LP can be replaced with a statistical ensemble formed by an infinite family of stochastic curves, referred to as generalized Lagrangian paths. This permits the introduction of a new parametric representation of the Schrödinger equation, denoted as GLP-parametrization, and of (...) the associated quantum hydrodynamic equations. The remarkable aspect of the GLP approach presented here is that it realizes at the same time also a new solution method for the N-body Schrödinger equation. As an application, Gaussian-like particular solutions for the quantum probability density function are considered, which are proved to be dynamically consistent. For them, the Schrödinger equation is reduced to a single Hamilton–Jacobi evolution equation. Particular solutions of this type are explicitly constructed, which include the case of free particles occurring in 1- or N-body quantum systems as well as the dynamics in the presence of suitable potential forces. In all these cases the initial Gaussian PDFs are shown to be free of the spreading behavior usually ascribed to quantum wave-packets, in that they exhibit the characteristic feature of remaining at all times spatially-localized. (shrink)

Philosophy has been a public endeavor since its origins in ancient Greece, India, and China. However, recent years have seen the development of a new type of public philosophy conducted by both academics and non- professionals. The new public philosophy manifests itself in a range of modalities, from the publication of magazines and books for the general public to a variety of initiatives that exploit the power and flexibility of social networks and new media. In this paper we examine the (...) phenomenon of public philosophy in its several facets, and investigate whether and in what sense it is itself a mix of philosophical practice and teaching. We conclude with a number of suggestions to academic colleagues on why and how to foster further growth of public philosophy for the benefit of society at large and of the discipline itself. (shrink)

Sewall Wright introduced the metaphor of evolution on “adaptive landscapes” in a pair of papers published in 1931 and 1932. The metaphor has been one of the most influential in modern evolutionary biology, although recent theoretical advancements show that it is deeply flawed and may have actually created research questions that are not, in fact, fecund. In this paper I examine in detail what Wright actually said in the 1932 paper, as well as what he thought of the matter at (...) the very end of his career, in 1988. While the metaphor is flawed, some of the problems which Wright was attempting to address are still with us today, and are in the process of being reformulated as part of a forthcoming Extended Evolutionary Synthesis. (shrink)

A partir da análise da arqueologia/genealogia do poder de Michel Foucault, o presente artigo propõe-se a discutir a evolução do conceito de poder disciplinar para o conceito de biopolítica, com base na transição que o filósofo identifica, no que se refere à organização do espaço urbano, da arquitetura e do urbanismo para a engenharia. Procura-se responder, com o artigo, à seguinte objeção: em que medida a arquitetura da sociedade disciplinar a partir da concepção de estruturas de disciplinamento dos corpos com (...) o objetivo de inclui-los no regime de produção da incipiente sociedade capitalista perde sua funcionalidade no contexto da sociedade do biopoder, pautada por uma engenharia da exclusão? Parte-se da hipótese de que, se a sociedade disciplinar, por meio da arquitetura do panóptico, buscava a integração dos indivíduos ao modelo de produção vigente, a sociedade da biopolítica promove, por meio da engenharia, a exclusão das massas que se transformam em excedente e, reflexamente, em inconveniente social. (shrink)

We present an account of semantics that is not construed as a mapping of language to the world but rather as a mapping between individual meaning spaces. The meanings of linguistic entities are established via a “meeting of minds.” The concepts in the minds of communicating individuals are modeled as convex regions in conceptual spaces. We outline a mathematical framework, based on fixpoints in continuous mappings between conceptual spaces, that can be used to model such a semantics. If concepts are (...) convex, it will in general be possible for interactors to agree on joint meaning even if they start out from different representational spaces. Language is discrete, while mental representations tend to be continuous—posing a seeming paradox. We show that the convexity assumption allows us to address this problem. Using examples, we further show that our approach helps explain the semantic processes involved in the composition of expressions. (shrink)

A collection of five essays published previously. Partial contents.

Integrated assessment models play a major role in the science and policy of climate change. Similarly to other widely used computational tools for addressing socially relevant problems, IAMs need to account for the key uncertainties characterizing processes and socio-economic responses. In the case of climate change, these are particularly complex given the very long-term nature of climate and the deep uncertainty characterizing technological and human systems. Here we draw from philosophical discussion of mathematical modeling of social problems and review the (...) role of uncertainty in climate-economic modeling. In agreement with the literature, we highlight the crucial role of epistemic uncertainty in IAMs. We posit that the normative components of models, more than the physical and socio-techno-economic ones, are the most fraught by uncertainty and yet the least understood. We suggest a research agenda to explore uncertainties of evaluation frameworks, transcending the current implicit normativity of IAMs. (shrink)

The connection between quantum mechanics and classical statistical mechanics has motivated in the past the representation of the Schrödinger quantum-wave equation in terms of “projections” onto the quantum configuration space of suitable phase-space asymptotic kinetic models. This feature has suggested the search of a possible exact super-dimensional classical dynamical system, denoted as Schrödinger CDS, which uniquely determines the time-evolution of the underlying quantum state describing a set of N like and mutually interacting quantum particles. In this paper the realization of (...) the same CDS in terms of a coupled set of Hamiltonian systems is established. These are respectively associated with a quantum-hydrodynamic CDS advancing in time the quantum fluid velocity and a further one the RD-CDS, describing the relative dynamics with respect to the quantum fluid. (shrink)

The problem is posed of the prescription of the so-called Boltzmann–Grad limit operator ) for the N-body system of smooth hard-spheres which undergo unary, binary as well as multiple elastic instantaneous collisions. It is proved, that, despite the non-commutative property of the operator \, the Boltzmann equation can nevertheless be uniquely determined. In particular, consistent with the claim of Uffink and Valente that there is “no time-asymmetric ingredient” in its derivation, the Boltzmann equation is shown to be time-reversal symmetric. The (...) proof is couched on the “ab initio” axiomatic approach to the classical statistical mechanics recently developed. Implications relevant for the physical interpretation of the Boltzmann H-theorem and the phenomenon of decay to kinetic equilibrium are pointed out. (shrink)

One of the most challenging and fascinating issue in mathematical and theoretical physics concerns the possibility of identifying the logic underlying the so-called quantum universe, i.e., Quantum Mechanics and Quantum Gravity. Besides the sheer difficulty of the problem, inherent in the actual formulation of Quantum Mechanics—and especially of Quantum Gravity—to be used for such a task, a crucial aspect lies in the identification of the appropriate axiomatic logical proposition calculus to be associated to such theories. In this paper the issue (...) of the validity of the conventional principle of non-contradiction is called into question and is investigated in the context of non-relativistic Quantum Mechanics. In the same framework a modified form of the principle, denoted as 3-way PNC is shown to apply, which relates the axioms of quantum logic with the physical requirements placed by the Heisenberg Indeterminacy Principle. (shrink)

The logical structure of quantum gravity is addressed in the framework of the so-called manifestly covariant approach. This permits to display its close analogy with the logics of quantum mechanics. More precisely, in QG the conventional 2-way principle of non-contradiction holding in Classical Mechanics is shown to be replaced by a 3-way principle. The third state of logical truth corresponds to quantum indeterminacy/undecidability, i.e., the occurrence of quantum observables with infinite standard deviation. The same principle coincides, incidentally, with the earlier (...) one shown to hold in Part I, in analogous circumstances, for QM. However, this conclusion is found to apply only provided a well-defined manifestly-covariant theory of the gravitational field is adopted both at the classical and quantum levels. Such a choice is crucial. In fact it makes possible the canonical quantization of the underlying unconstrained Hamiltonian structure of general relativity, according to an approach recently developed by Cremaschini and Tessarotto. Remarkably, in the semiclassical limit of the theory, Classical Logic is proved to be correctly restored, together with the validity of the conventional 2-way principle. (shrink)

The paper investigates the role played by pre-scientific experience in the philosophy of Josiah Royce and Edmund Husserl. Such a notion, generally associated with Husserl’s conception of the life-world (Lebenswelt) in the Crisis of European Sciences and Transcendental Phenomenology (1936), finds an equivalent and historical antecedent in Royce’s distinction between a world of description and a world of appreciation. The final goal is to show how, despite their different philosophical frameworks, Royce and Husserl agree on the idea that, through the (...) rejection of the world given through mere perception (Lebenswelt/world of appreciation), European sciences have somehow failed their task of universality. As it will be shown, this idea is also due to methodological affinities among the two thinkers. The experience of interconnectedness among individual minds, while precluded in the mere scientific explanation of the world, it becomes possible through the enactment of the Lebenswelt or, as in Royce’s case, through a return to the experience of the world of appreciation. (shrink)

This paper criticizes the tendency to view the extension of the class of social actors, which stems from the process of democratization of data, as also implying the extension of the class of the political actors involved in the process of governance of the Information Society. The paper argues that social actors can upgrade to political actors once they become real interlocutors, namely political actors that can participate in the formation of the political discourse and that this can happen only (...) once they are able to combine, to a greater or lesser degree, the reduction of information asymmetries with the reduction of power differentials. (shrink)

The traditional interpretation of Eleatism has it that Melissus was a disciple of Parmenides and that Parmenides believed in the timeless eternity of Being. It seems, on the contrary, that Melissus acknowledged the reality of time by conceiving eternity as infinite time. Failing to justify this particular divergence from Parmenides’ approach, certain authors held that it was necessary to reinterpret the Melissan eternity as a form of infinite timelessness. This paper attempts to demonstrate that this reading is groundless and that (...) if the traditional interpretation is questioned then one should reconsider the assumptions and but not. (shrink)

A socio-cognitive approach to trust can help us envisage a notion of networked trust for multi-agent systems (MAS) based on different interacting agents. In this framework, the issue is to evaluate whether or not a socio-cognitive analysis of trust can apply to the interactions between human and autonomous agents. Two main arguments support two alternative hypothesis; one suggests that only reliance applies to artificial agents, because predictability of agents’ digital interaction is viewed as an absolute value and human relation is (...) judged to be a necessary requirement for trust. The other suggests that trust may apply to autonomous agents because predictability of agents’ interaction is viewed only as a relative value since the digital normativity that grows out of the communication process between interacting agents in MAS has always deal with some unpredictable outcomes (_reduction of uncertainty_). Furthermore, human touch is not judged to be a necessary requirement for trust. In this perspective, a diverse notion of trust is elaborated, as trust is no longer conceived only as a relation between interacting agents but, rather, as a relation between cognitive states of control and lack of control (_double bind_). (shrink)

In complex, pluralistic societies, different views concerning the moral duties of healthcare professionals inevitably exist: according to some accounts, doctors can and should cooperate in performing abortion or physician-assisted suicide, while according to others they should always defend human life and protect their patients’ health. It is argued that the very plurality of responses presently given to questions such as these provides a liberal argument in favour of conscientious objection, as an attempt to deal with moral diversity by protecting both (...) the professionals’ claim to moral integrity and the patients’ claim to receive lawful and safe medical treatments. A moderate view on CO is defended, according to which none of these claims can be credited with unconditional value. Claims to CO by healthcare professionals can be justified but must be subjected to a reasonableness standard. Both the incompatibility of CO with the medical profession and its unconditional sanctioning by conscience absolutism are therefore rejected. The paper contributes to the definition of the conditions of such reasonableness, particularly by stressing the role played by conceptions of good medicine in discriminating claims to CO; it is argued that respecting these conditions prevents from having the negative consequences dreaded by critics. The objection according to which accepting the physician’s duty to inform and refer is inconsistent with the professed value of moral integrity is also discussed. (shrink)

L'impianto didattico di questa 'Storia' consente di: conciliare l'esposizione piana dei concetti con il rigore del linguaggio filosofico; favorire la percezione delle strutture concettuali, con il duplice scopo di illustrare adeguatamente sia l'impianto filosofico dei singoli autori sia lo sviluppo storico dei diversi problemi; presentare la storia del pensiero moderno in una chiave di categorie filosofiche, oltre che storico-evolutiva; delineare i contesti storici in cui nascono le diverse espressioni del pensiero moderno; rimarcare la diversità dei generi letterari utilizzati dagli autori, (...) mostrandone la connessione con il loro modo di filosofare. (shrink)

The way in which people change and represent their spiritual evolution is often determined by recurrent language structures. Through the analysis of ancient and modern stories and their words and images, this book describes the nature of conversion through explorations of the encounter with the religious message, the discomfort of spiritual uncertainty, the loss of personal and social identity, the anxiety of destabilization, the reconstitution of the self and the discovery of a new language of the soul.

Just war theory is currently dominated by two positions. According to the orthodox view, provided that jus in bello principles are respected, combatants have an equal right to fight, regardless of the justice of the cause pursued by their state. According to “revisionists” whenever combatants lack reasons to believe that the war they are ordered to fight is just, their duty is to disobey. I argue that when members of a legitimate state acting in good faith are ordered to fight, (...) they acquire a pro-tanto obligation to obey which does not depend for its validity on the justice of the cause being pursued. However, when the war is unjust, this obligation may be overridden, under certain conditions, by the obligation not to contribute to the unjustified killing of innocents. This is because the pro-tanto force of the duty to obey the law is best understood in terms of “presumptive”, rather than “exclusionary” reasons for action. This approach captures the insights of both the orthodox and the revisionist view, while avoiding the problems that afflict each of them. (shrink)

In this paper I outline a theory of legitimacy that grounds the state’s right to rule on a natural duty not to harm others. I argue that by refusing to enter the state, anarchists expose those living next to them to the dangers of the state of nature, thereby posing an unjust threat. Since we have a duty not to pose unjust threats to others, anarchists have a duty to leave the state of nature and enter the state. This duty (...) correlates to a claim-right possessed by those living next to them, who also have a right to act in self-defence to enforce this obligation. This argument, if successful, would be particularly attractive, as it provides an account of state legitimacy without importing any normative premises that libertarians would reject. (shrink)