This work develops an epistemology of measurement, that is, an account of the conditions under which measurement and standardization methods produce knowledge as well as the nature, scope, and limits of this knowledge. I focus on three questions: (i) how is it possible to tell whether an instrument measures the quantity it is intended to? (ii) what do claims to measurement accuracy amount to, and how might such claims be justified? (iii) when is disagreement among instruments a sign of error, (...) and when does it imply that instruments measure different quantities? Based on a series of case studies conducted in collaboration with the US National Institute of Standards and Technology (NIST), I argue for a model-based approach to the epistemology of physical measurement. To measure a physical quantity, I argue, is to estimate the value of a parameter in an idealized model of a physical process. Such estimation involves inference from the final state (‘indication’) of a process to the value range of a parameter (‘outcome’) in light of theoretical and statistical assumptions. Contrary to contemporary philosophical views, measurement outcomes cannot be obtained by mapping the structure of indications. Instead, measurement outcomes as well as claims to accuracy, error and quantity individuation can only be adjudicated relative to a choice of idealized modelling assumptions. (shrink)

Contrary to the claim that measurement standards are absolutely accurate by definition, I argue that unit definitions do not completely fix the referents of unit terms. Instead, idealized models play a crucial semantic role in coordinating the theoretical definition of a unit with its multiple concrete realizations. The accuracy of realizations is evaluated by comparing them to each other in light of their respective models. The epistemic credentials of this method are examined and illustrated through an analysis of the contemporary (...) standardization of time. I distinguish among five senses of ‘measurement accuracy’ and clarify how idealizations enable the assessment of accuracy in each sense. (shrink)

The creative aspect of language use provides a set of phenomena that a science of language must explain. It is the “central fact to which any signi- ficant linguistic theory must address itself” and thus “a theory of language that neglects this ‘creative’ aspect is of only marginal interest” (Chomsky 1964: 7–8). Therefore, the form and explanatory depth of linguistic science is restricted in accordance with this aspect of language. In this paper, the implications of the creative aspect of language (...) use for a scientific theory of language will be discussed, noting the possible further implications for a science of the mind. It will be argued that a corollary of the creative aspect of language use is that a science of language can study the mechanisms that make language use possible, but that such a science cannot explain how these mechanisms enter into human action in the form of language use. (shrink)

When discrepancies are discovered between the outcomes of different measurement procedures, two sorts of explanation are open to scientists. Either some of the outcomes are inaccurate or the procedures are not measuring the same quantity. I argue that, due to the possibility of systematic error, the choice between and is underdetermined in principle by any possible evidence. Consequently, foundationalist criteria of quantity individuation are either empty or circular. I propose a coherentist, model-based account of measurement that avoids the underdetermination problem, (...) and use this account to explain how scientists individuate quantities in practice. (shrink)

The philosophy of measurement studies the conceptual, ontological, epistemic, and technological conditions that make measurement possible and reliable. A new wave of philosophical scholarship has emerged in the last decade that emphasizes the material and historical dimensions of measurement and the relationships between measurement and theoretical modeling. This essay surveys these developments and contrasts them with earlier work on the semantics of quantity terms and the representational character of measurement. The conclusions highlight four characteristics of the emerging research program in (...) philosophy of measurement: it is epistemological, coherentist, practice oriented, and model based. (shrink)

This paper draws attention to an increasingly common method of using computer simulations to establish evidential standards in physics. By simulating an actual detection procedure on a computer, physicists produce patterns of data (‘signatures’) that are expected to be observed if a sought-after phenomenon is present. Claims to detect the phenomenon are evaluated by comparing such simulated signatures with actual data. Here I provide a justification for this practice by showing how computer simulations establish the reliability of detection procedures. I (...) argue that this use of computer simulation undermines two fundamental tenets of the Bogen–Woodward account of evidential reasoning. Contrary to Bogen and Woodward’s view, computer-simulated signatures rely on ‘downward’ inferences from phenomena to data. Furthermore, these simulations establish the reliability of experimental setups without physically interacting with the apparatus. I illustrate my claims with a study of the recent detection of the superfluid-to-Mott-insulator phase transition in ultracold atomic gases. (shrink)

This article concerns the distinction between memory-time and information-time, which appeared in Wittgenstein’s middle-period lectures and writings, and its relation to Wittgenstein’s career-long reflection about musical understanding. While the idea of “information-time” entails a public frame of reference typically pertaining to objects which persist in physical time, the idea of pure “memory-time” involves the totality of one’s present memories and expectations that do now provide any way of measuring time-spans. I argue that Wittgenstein’s critique of Augustine notion of pure memory-time (...) entails ipso facto a critique of an influential idea of musical motion, which has been recurring in the work of some major philosophers of music up until the present day. The article connects Wittgenstein’s critical remarks on the confused foundations of such “Augustinian Picture of Music” with his emphasis on the notion of phrasing or characterization in language and music. Wittgenstein’s reversal of Augustinian priorities regarding musical time brings to surface the particularity of expression and the aesthetically “right” in music, evoked by Wittgenstein’s remarks on simultaneity and tempo in music and language. Wittgenstein renders musical simultaneity as enabled by a “protocol” which inheres in musizieren, in the aptly collaborative quest for drawing in significance by means of the phrasing and re-phrasing of a passage in order to characterize it, enabling by means of such comparative investigation meaningful distinctions between right and wrong. (shrink)

This essay explores Wittgenstein’s encounter with Stumpf’s work in Tone Psychology during a rarely studied period in Wittgenstein’s early career when he worked as a researcher in Myers’s laboratory for experimental psychology in Cambridge. I argue that Stumpf’s emphasis on the notion of musicality as the ability to characterize what is ‘musical’ about music troubled Wittgenstein’s initial formulation of his career-long adherence to the comparison between language and music. In the Tractatus the importance of internal projective relations far exceeds that (...) of arbitrariness in language. This results in the curious elision of musicality in the Tractatus, as shown in his gramophone analogy. The acknowledgment of the enormous complexity pertaining to the facts of human life remained underdeveloped in Wittgenstein’s philosophy until the anthropological turn in his middle-period. Only then do we see the blooming of the language-as-music simile and its eventual impact on Wittgenstein’s later philosophy. (shrink)

This article develops a model-based account of the standardization of physical measurement, taking the contemporary standardization of time as its central case study. To standardize the measurement of a quantity, I argue, is to legislate the mode of application of a quantity concept to a collection of exemplary artefacts. Legislation involves an iterative exchange between top-down adjustments to theoretical and statistical models regulating the application of a concept, and bottom-up adjustments to material artefacts in light of remaining gaps. The model-based (...) account clarifies the cognitive role of ad hoc corrections, arbitrary rules, and seemingly circular inferences involved in contemporary timekeeping, and explains the stability of networks of standards better than its conventionalist and constructivist counterparts. 1 Introduction2 Making Time Universal2.1 Stability and accuracy2.2 Multiple realizability2.3 The challenges of synchronicity2.4 Divergent standards2.5 The leap second3 The Two Faces of Stability3.1 An explanatory challenge3.2 Conventionalist explanations3.3 Constructivist explanations4 Models and Standardization4.1 A third alternative4.2 Stability reconceived4.3 Legislative freedom4.4 Discovering gaps4.5 Nature and society entangled4.6 Remark on scope5 Conclusions. (shrink)

I show that there are good arguments and evidence to boot that support the language as an instrument of thought hypothesis. The underlying mechanisms of language, comprising of expressions structured hierarchically and recursively, provide a perspective (in the form of a conceptual structure) on the world, for it is only via language that certain perspectives are avail- able to us and to our thought processes. These mechanisms provide us with a uniquely human way of thinking and talking about the world (...) that is different to the sort of thinking we share with other animals. If the primary function of language were communication then one would expect that the underlying mechanisms of language will be structured in a way that favours successful communication. I show that not only is this not the case, but that the underlying mechanisms of language are in fact structured in a way to maximise computational efficiency, even if it means causing communicative problems. Moreover, I discuss evidence from comparative, neuropatho- logical, developmental, and neuroscientific evidence that supports the claim that language is an instrument of thought. (shrink)

Discussions about brain data and privacy, particularly those advocating for human rights frameworks, at times, have embodied problematic undercurrents of, if not overt appeals to, neuro-exceptional...

According to the Tibetan Buddhist tradition ‘The Great Perfection’, we can distinguish between two basic dimensions of mind: an intentional dimension that is divided into perceiver and perceived and a non-dual dimension that transcends all distinctions between subject and object. The non-dual dimension is evident through its intuitional characteristics; an unbounded openness that is free from intentional limitations, a spontaneous luminosity which presences all phenomena, and self-awareness that recognizes the original resonance of beings. Owing to these characteristics, the descriptions of (...) this dimension exemplify an integrative way of speaking about primordial reality, which resolves the assumed dichotomy between kataphatic and apophatic discourses by pointing to a dimension that pervades all phenomena without being identified with any of those. In this article, I intend to discuss the characteristics of the non-dual dimension and their implications for our understanding of human consciousness and the inherent co-emergence of positive and negative perceptions of reality. (shrink)

Cette finitions de la substance et de l'accident telles qu'elles apparaissent dans le livre d'lbn Daud intitule la Foi exaltee. Acheve en 1160, ce livre fut composcut grbreu (datant l'une et l'autre de la fin du XTVe situde je suggtique du texte arabe sur la base d'une ample comparaison entre, d'une part, des prcesseurs musulmans d'lbn Daud tels qu'Alfarabi, Avicenne et Alghazali et, d'autre part, les traductions en hre apporter plus de lumipendance d'lbn Daud par rapport aux sources non-juives dans (...) sa tentative d'etablir une synthritable signification philosophique incarnfinitions de substance et d'accident. (shrink)

Medical devices are often referred to as being invasive or non-invasive. Though invasiveness is relevant, and central, to how devices are understood and regarded in medicine and bioethics, a consensus concept or definition of invasiveness is lacking. To begin to address this problem, this essay explores four possible descriptive meanings of invasiveness: how devices are introduced to the body, where they are located in the body, whether they are foreign to the body, and how they change the body. An argument (...) is offered that invasiveness is not purely descriptive, but implicates normative concepts of danger, intrusion, and disruption. In light of this, a proposal is offered for how to understand use of the concept of invasiveness in discussions of medical devices. (shrink)

I argue that the ability to compute phrase structure grammars is indicative of a particular kind of thought. This type of thought that is only available to cognitive systems that have access to the computations that allow the generation and interpretation of the structural descriptions of phrase structure grammars. The study of phrase structure grammars, and formal language theory in general, is thus indispensable to studies of human cognition, for it makes explicit both the unique type of human thought and (...) the underlying mechanisms in virtue of which this thought is made possible. (shrink)

Neural engineering technologies such as implanted deep brain stimulators and brain-computer interfaces represent exciting and potentially transformative tools for improving human health and well-being. Yet their current use and future prospects raise a variety of ethical and philosophical concerns. Devices that alter brain function invite us to think deeply about a range of ethical concerns—identity, normality, authority, responsibility, privacy, and justice. If a device is stimulating my brain while I decide upon an action, am I still the author of the (...) action? Does a device make the interiority of my experience accessible to others? Will the device change the way I think of myself and others think of me? Such fundamental questions arise even when a device is designed for only a relatively circumscribed purpose, such as restoring functioning via a smart prosthetic. We are part of a National Science Foundation-funded Engineering Research Center tasked with investigating philosophical and social implications of neural engineering research and technologies. Neural devices already in clinical use, such as deep brain stimulators for Parkinson's disease or essential tremor, have spurred healthy debate about such implications. Devices currently under development—such as the BrainGate System of implanted brain sensors coupled to robotics in persons with paralysis, exoskeletons for augmented movement, transcranial do-it-yourself stimulators, closed-loop brain stimulating systems, or even brain-to-brain interfacing—promise to extend and deepen these debates. At our center, brain-computer interfaces are the principal focus of work. Even acknowledging that the clinical translation of neural devices and seamless integration by end users may still largely reside in the future, the potential these devices hold calls for careful early analysis. The launching of the Brain Research through Advancing Innovative Neurotechnologies Initiative in April 2013 provides further impetus for this work. (shrink)

At the center of contemporary discourse on technology — or the digital discourse — is the assertion that network technology ushers in a new phase of capitalism which is more democratic, participatory, and de-alienating for individuals. Rather than viewing this discourse as a transparent description of the new realities of techno-capitalism and judging its claims as true (as the hegemonic view sees it) or false (a view expressed by few critical voices), this article offers a new framework which sees the (...) digital discourse as signaling a historical shift in the technological legitimation of capitalism, concurrent with the emergence of the post-Fordist phase of capitalism. Technology discourse legitimated the Fordist phase of capitalism by stressing the ability of technology and technique to mitigate exploitation. It hence legitimated the interventionist welfare state, the central planning in businesses and the economy, the hierarchized corporation, and the tenured worker. In contrast, contemporary technology discourse legitimates the post-Fordist phase of capitalism by stressing the ability of technology to mitigate alienation. It hence legitimates the withdrawal of the state from markets, the dehierarchization and decentralization of businesses, and the flexibilization of production and the labor process. (shrink)

The central role played by emotions in conflict has long been recognized by many of the scholars who study ethnic conflicts and conflict resolution. Yet recent developments in the psychological study of discrete emotions and of emotion regulation have yet to receive adequate attention by those who study and seek to promote conflict resolution. At the same time, scholars of emotion and emotion regulation have only rarely tested their core theories in the context of long-term conflicts, which constitute a unique (...) and highly emotional environment. I argue that building bridges between these two communities would help us to form a better understanding of core processes in emotion and emotion regulation as well as greatly advance theory and practice in conflict resolution. To address that goal, a theoretical, appraisal-based model elucidating the way emotions operate in the context of conflict resolution processes is presented, followed by a review of recent empirical developments in the study of discrete emotions in conflict resolution processes. Next, I discuss various avenues of influence and provide preliminary data regarding the potential role of two types of emotion regulation processes in conflict resolution efforts. Finally, I describe the future challenges in integrating these two bodies of knowledge, at both the theoretical and the applied levels. (shrink)

Axiomatic measurement theories are commonly interpreted as claiming that, in order to quantify an empirical domain, the qualitative structure of data about that domain must be mapped to a numerical structure. Such mapping is supposed to be established independently, i.e., without presupposing that the domain can be quantified. This interpretation is based on two myths: that it is possible to independently infer the qualitative structure of objects from empirical data, and that the adequacy of numerical representations can only be justified (...) by mapping such qualitative structures to numerical ones. I dispel the myths and show that axiomatic measurement theories provide an inadequate characterization of the kind of evidence required to detect quantities. (shrink)

Sentences that are ungrammatical and yet intelligible are instances of what I call perfectly thinkable thoughts. I argue that the existence of perfectly thinkable thoughts is revealing in regard to the question of why syntactic islands should exist. If language is an instrument of thought as understood in the biolinguistics tradition, then a uniquely human subset of thoughts is generated in narrow syntax, which suggests that island constraints cannot be rooted in narrow syntax alone and thus must reflect interface conditions (...) imposed on the output of the computational system and its mapping to external systems. (shrink)

Implantable brain–computer interface technology is an expanding area of engineering research now moving into clinical application. Ensuring meaningful informed consent in implantable BCI research is an ethical imperative. The emerging and rapidly evolving nature of implantable BCI research makes identification of risks, a critical component of informed consent, a challenge. In this paper, 6 core risk domains relevant to implantable BCI research are identified—short and long term safety, cognitive and communicative impairment, inappropriate expectations, involuntariness, affective impairment, and privacy and security. (...) Work in deep brain stimulation provides a useful starting point for understanding this core set of risks in implantable BCI. Three further risk domains—risks pertaining to identity, agency, and stigma—are identified. These risks are not typically part of formalized consent processes. It is important as informed consent practices are further developed for implantable BCI research that attention be paid not just to disclosing core research risks but exploring the meaning of BCI research with potential participants. (shrink)

The Ethical, Legal, and Social Implications (ELSI) program of the Human Genome Project stands as a model for how to organize bioethical inquiry for a rapidly changing field. Neuroscience has experienced significant growth in recent years and there is increasing interest in organizing critical reflection on this field, as evidenced by the creation of “neuroethics.” A nascent framework for reflection on the implications of neuroscience is emerging but significant work remains, given the pace and scope of neuroscientific developments. The adoption (...) of an ELSI program, modeled on that of the ELSI program of the Human Genome Project, promises a way for neuroscience to meet important organizational, educational, and policy objectives. Review of recent criticisms of the HGP ELSI program suggests that an ELSI program for neuroscience would face certain obstacles. Those interested in a neuroscience ELSI program will need to develop appropriate resources to overcome these obstacles. (shrink)

The basic axiom of Judaism over the generations has been that the Torah is of divine origin and was transmitted to Israel by Moses. Numerous and diverse notions regarding the composition of the Torah and Moses’ role in writing it can and have been derived from this conservative doctrine, however. To date, no full and exhaustive inquiry into the matter having been conducted into the subject to date, some relevant sources and the relationship between the diverse views or their influence (...) on one another still awaiting investigation. This paper seeks to fill this lacuna, focusing on the most primary and influential developmental stages of the tenet, and demonstrating that the emergence of these has largely been determined by polemics with other religious groups, including Pagans, Christians, Muslims, and Karaites. (shrink)

Hope is a positive emotion that plays a pivotal role in intractable conflicts and conflict resolution processes by inducing conciliatory attitudes for peace. As a catalyser for conflict resolution, it is important to further understand hope in such contexts. In this article we present a novel framework for understanding hope in contexts of intergroup conflict. Utilizing appraisal theory of emotions and heavily relying on the implicit theories framework, we describe three targets upon which hope appraisals focus in intractable conflict—the conflict, (...) the outgroup, and the ingroup. Next, we describe the importance of developing ways to experimentally induce hope, and utilize the appraisal-target framework to describe and classify existing and potential interventions for inducing hope in intractable conflict resolution. (shrink)

Agency is talked about by many as something that people living with dementia lose, once they've lost much else—autonomy, identity, and privacy, among other things. While the language of loss may capture some of what transpires in dementia, it can obscure how people living with dementia and their loved ones share agency through sharing capacities for memory, language, and decision‐making. We suggest that one consequence of adopting a framework of loss is that it makes the default response to changes in (...) agency the substitution of a family member's agency for the purported lost agency of someone living with dementia. We argue for an alternative framework in which sharing agency is recognized as a central feature of living with dementia. Building on the work of relational theorists, we argue for the value of thinking about agency in dementia as fundamentally shared, and explore potential implications for treatment, caregiver support, and building dementia‐friendly environments. (shrink)

This book discusses the two main construals of the explanatory goals of semantic theories. The first, externalist conception, understands semantic theories in terms of a hermeneutic and interpretive explanatory project. The second, internalist conception, understands semantic theories in terms of the psychological mechanisms in virtue of which meanings are generated. It is argued that a fruitful scientific explanation is one that aims to uncover the underlying mechanisms in virtue of which the observable phenomena are made possible, and that a scientific (...) semantics should be doing just that. If this is the case, then a scientific semantics is unlikely to be externalist, for reasons having to do with the subject matter and form of externalist theories. It is argued that semantics construed hermeneutically is nevertheless a valuable explanatory project. (shrink)

According to Alix Cohen, Kant defines emotions as ‘feelings’. Although I find her account of Kantian feelings compelling, I provide three reasons to doubt that it is an account of emotions: (1) it is unclear why Cohen identifies emotions with Kantian feelings; (2) some Kantian feelings are not emotions; (3) some Kantian desires may be emotions. I propose, however, that with some qualifications Cohen’s account may be upheld, provided its extra-textual assumptions about emotions are explicated. Against her claim that Kantian (...) feelings have a derived intentionality, I argue that the text is compatible with their being intrinsically intentional. (shrink)

The clinical relationship has been underexplored in dementia care. This is in part due to the way that the clinical relationship has been articulated and understood in bioethics. Robert Veatch’s social contract model is representative of a standard view of the clinical relationship in bioethics. But dementia presents formidable challenges to the standard clinical relationship, including ambiguity about when the clinical relationship begins, how it weathers changes in narrative identity of patients with dementia, and how the intimate involvement of family (...) fits alongside a paradigmatically dyadic relationship. Drawing on work in recent feminist theory, a critique is offered of the standard clinical relationship in bioethics as underwritten by an individualistic conception of autonomy. An alternative view of the clinical relationship in dementia, one that embraces a relational account of autonomy, is put forward. (shrink)

This article focuses on the main contemplative principles of the ‘Heart Essence’, a Tibetan Buddhist tradition that is characterized by a vision of non-duality and primordial wholeness. Due to this vision, which asserts an original reality that is not divided into perceiving subject and perceived object, the ‘Heart Essence’ advocates a contemplative practice that undermines the usual intuitions of temporality and enclosed selfhood. Hence, unlike the common principles of intentional praxis, such as deliberate concentration and gradual purification, the ‘Heart Essence’ (...) affirms four contemplative principles of non-objectiveness, openness, spontaneity and singleness. As these principles transcend intentionality, temporality, and multiplicity, they are seen to directly disclose the nature of primordial awareness, in which the meanings of knowing and being are radically transformed. Therefore, the article will also consider the role of these non-dual contemplative principles in deeply changing our understanding of being and knowing alike. (shrink)

The phenomenon of ‘Knowing’ has a crucial role in Buddhist explanations about the determination of individual realities. According to these explanations particular modes of knowing are connected to specific ways of perceiving and, even, constituting reality. As the ideal state of reality according to Buddhist doctrine is that of an unconditioned liberation, numerous traditions have examined and described the mode of knowing which characterizes such a state. Among these, we find several traditions that related such a mode with a claim (...) concerning the innateness of an unconditioned state. This paper is meant to discuss some of these traditions, mainly ‘The Great Perfection’, a Tibetan non-dual tradition that asserted a mode of primordial knowing which is present in each moment of awareness. By discussing the intuitive qualities of this mode, we aim to show how an inherent mode of non-dual awareness can be explained through a comprehensive description of the basic aspects of lived experience. (shrink)

It is well known that the Ackermann function can be defined via diagonalization from an iteration hierarchy which is built on a start function like the successor function. In this paper we study for a given start function g iteration hierarchies with a sub-linear modulus h of iteration. In terms of g and h we classify the phase transition for the resulting diagonal function from being primitive recursive to being Ackermannian.

A common view has it that since we are far likelier to be killed in some road or household accident than in a terror attack, our fear of the latter is exaggerated. I argue that terrorism's relatively limited death toll need not mean that fearing it is unreasonable, nor does it immediately imply that counter‐terrorism policies are unjustified – whatever other, legitimate concerns these policies give rise to. First, I argue that in the special case of terrorism, it is misleading (...) to focus on risk per capita, as critics typically do. Second, while terrorism has a probabilistic component which should be relevant to decision‐making, risk is not entirely or even primarily what terrorism is all about. Third, I argue that fearing terrorism may be reasonable even while recognizing the small probability of personal harm. Due to terrorism's random character, the belief that one will escape harm rests on little more than statistical evidence. As I explain, this leaves some room for reasonable doubt, and a justified level of fear. (shrink)

Commentators provide two different accounts of desires in Kant: “feeling-based” accounts stress their connection with feelings, while “action-based” accounts view them as causes of action. I argue that “feeling-based” accounts blur the feeling-desire distinction, while the “action-based” accounts conflict with Kantian desires that do not cause action. On my alternative, Kantian desires are dispositions to action normally directed at producing future objects, and so they differ from the feelings they are connected to, which refer to the way we are affected (...) by objects. This account preserves the feeling-desire distinction, is compatible with desires that do not cause action, and anticipates holistic theories of desire that combine dispositional, hedonic, and evaluative components. (shrink)

Commentators disagree about Kant’s view on the proper treatment of emotions. In contrast to a tendency in this literature to treat them uniformly, I argue that, according to Kant, feelings (but not affects) require cultivation, and inclinations – although they can and perhaps may be cultivated – generally require discipline. The appropriate treatment for emotions depends on their susceptibility to rational constraint and on the threat they pose to rational deliberation. Although I read Kant as recommending that we cultivate certain (...) emotions, I argue that my reading is not vulnerable to Thomason’s recent pertinent objections to such readings. (shrink)

In this paper I explain Wittgenstein’s ambivalent remarks on the music of Gustav Mahler in their proper musico-philosophical context. I argue that these remarks are connected to Wittgenstein’s hybrid conception of musical decline and to his tripartite scheme of modern music. I also argue that Mahler’s conundrum was indicative of Wittgenstein’s grappling with his own predicament as a philosopher, and that this gives concrete sense to Wittgenstein’s admission that music was so important to him that without it he was sure (...) to be misunderstood. (shrink)

Most Probably: Epistemic Modality in Old Babylonian by Nathan Wasserman is the first attempt to provide a description of the domain of epistemic modality in Old Babylonian Akkadian. This attempt is not entirely successful, for several reasons. Methodological inconsistency often impairs the author’s ability to convince the reader of his solutions. Both primary data and existing secondary literature are used only selectively, which renders the proposed description problematic. Finally, the lack of cross-referencing between the chapters evokes the feeling that the (...) different particles do not quite constitute a system. (shrink)