Free swimming cells of the ciliated protozoan Tetrahymena are attracted to certain chemicals by chemokinesis. However, a special type of chemotaxis in response to a chemical gradient is found in cells gliding very slowly in semisolid media. In contrast to classical chemotaxis by leukocytes, which is solely positive towards chemo‐attractants, the oriented chemokinesis by gliding Tetrahymena involves both positive and negative elements. The major chemo‐attractants are peptides and/or proteins, and they may be compounds which signal the presence of food in (...) the natural environment of this freshwater phagotroph. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Philosophy and Literature 26.1 (2002) 43-56 [Access article in PDF] Jack London's Medusa of Truth Per Serritslev Petersen FROM THE VERY START of his literary career, Jack London believed that a good fiction writer must also be a good thinker—that fictional authenticity and integrity must somehow be imbedded in philosophical authenticity and integrity. In his early essay "On the Writer's Philosophy of Life," and in his early letters to (...) Cloudsley Johns, his intellectually "slovenly" friend (who also happened to share his literary ambitions and interests), London insists, again and again, on the proper philosophical foundation of the successful writer. This is how poor Cloudsley, who had previously been told to "get in and systematically ground [himself] in history, economics, biology and the kindred branches" 1 gets browbeaten by his self-appointed mentor and master, a veritable Jack of all trades, in a letter dated March 15, 1900: "To be well fitted for the tragedy of existence (intellectual existence), one must have a working philosophy, a synthesis of things. Have you a synthesis of things? Do you write, and talk, and build upon a foundation which you know is securely laid? Or do you not rather build with a hazy idea of 'to hell with the foundation.'" London then proceeds to catechize his friend on scientific principles such as the indestructibility of Matter, the persistence of Force, and the overall "dynamic principle, true of the metamorphosis of the universe"—principles that Cloudsley is urged to study "carefully and painstakingly" before he can ever claim to have "a firm foundation for [his] philosophy of life" (Letters, pp. 170-71).In London's admittedly heavy-handed ad hominem argument, one recognizes the philosophical sledgehammer of Ernest Everhard, the revolutionary hero of The Iron Heel and one of the fictional exponents of "that cold forbidding philosophy, materialistic monism," 2 which also [End Page 43] served as the scientific foundation of London's own philosophy of life. There are, however, not one, but two components to London's philosophy, which, as I shall argue in this essay, together constitute an essentially dialectical construction, a dynamic juxtaposition of and negotiation with, on the one hand, the "cold forbidding" Medusa of Truth and, on the other hand, the life-enhancing Aphrodite of Romance, the second of which is one of several versions of the vital Maia-Lie (Maia being the Buddhist term for the power that creates or re-creates the world as cosmic illusion).Two points need to be stressed from the outset. First, London's work is implicitly aligned with literary naturalism—the "Zolaistic Movement" of modern American fiction that the genteel writer and editor Thomas Bailey Aldrich famously condemned for its "miasmatic breath" 3 —even though London himself would always qualify his own naturalism by insisting that, artistically, he was "an emotional materialist" (Letters, p. 329), and that his realism was, in the words of Martin Eden, one of his fictional alter egos, "an impassioned realism, shot through with human aspiration and faith." 4 Second, London's work is explicitly aligned with philosophical naturalism (as distinct from supernaturalism)—that is, naturalism as the philosophical or epistemological view that, to quote The Oxford Companion to Philosophy (1995), "everything is natural, i.e. that everything there is belongs to the world of nature, and so can be studied by the methods appropriate for studying that world." In philosophical practice, naturalism and materialism have tended to coalesce, materialism being basically understood as the view that everything is made of matter, which can be studied by the methods of natural science. Like London's philosophical alter ego Ernest Everhard (and also like fictional protagonists such as Wolf Larsen and Martin Eden), London declared himself "a materialistic monist," although, as he admitted to Cloudsley Johns, "there is dam little satisfaction in it." Rhetorically impersonating, as it were, Wolf Larsen, London, in the same letter, asks himself and his correspondent, "what squirming anywhere, damned or otherwise, means anything? That's the question I am always prone to put: What's this chemical ferment called life about? Small wonder that small men... (shrink)

The power of algorithms has become a familiar topic in society, media, and the social sciences. It is increasingly common to argue that, for instance, algorithms automate inequality, that they are biased black boxes that reproduce racism, or that they control our money and information. Implicit in many of these discussions is that algorithms are permeated with normativities, and that these normativities shape society. The aim of this editorial is double: First, it contributes to a more nuanced discussion about algorithms (...) by discussing how we, as social scientists, think about algorithms in relation to five theoretical ideal types. For instance, what does it mean to go under the hood of the algorithm and what does it mean to stay above it? Second, it introduces the contributions to this special theme by situating them in relation to these five ideal types. By doing this, the editorial aims to contribute to an increased analytical awareness of how algorithms are theorized in society and culture. The articles in the special theme deal with algorithms in different settings, ranging from farming, schools, and self-tracking to AIDS, nuclear power plants, and surveillance. The contributions thus explore, both theoretically and empirically, different settings where algorithms are intertwined with normativities. (shrink)

An article on the aspect of the League which most concerns the present study is Larsen, "Representative Government in the Panhellenic Leagues," CP 20..

This volume is both a state-of-the-art display of current thinking on second language development as a complex system. It is also a tribute to Diane Larsen-Freeman for her decades of intellectual leadership in the academic disciplines of applied linguistics and second language acquisition. The chapters therein range from theoretical expositions to methodological analyses, pedagogical proposals, and conceptual frameworks for future research. In a balanced and in-depth manner, the authors provide a comprehensive and interdisciplinary understanding of second language development, with a (...) wealth of insights that promise to break the status-quo of current research and take it to exciting new territory. The book will appeal to both seasoned and novice researchers in applied linguistics, second language acquisition, bilingualism, cognitive psychology, and education, as well as to practitioners in second or foreign language teaching of any language. (shrink)

In a crucial passage in the Parmenides, Parmenides states that the power of conversation (ten tou dialegesthai dynamin) depends on forms (135b-c) and indicates that this power is a prerequisite for philosophy. In chapter xx Kristian Larsen raises the question what implications this passage has for Plato’s conception of dialectic and argues that the discussion of the thesis that knowledge is perception in the Theaetetus, and in particular the conclusion to this discussion found at 184b3-186e12, provides an explanation of Parmenides’ (...) claims about the power of conversation. The chapter provides a detailed interpretation of the final refutation of Theaetetus’ thesis that knowledge is perception that highlights the way the dramatic features of the Theaetetus accentuate the argument Socrates develops in order to refute the thesis. Larsen argues that a central feature of the drama of the dialogue is Socrates’ attempt at redirecting Theaetetus from mathematics toward dialectic and philosophy. In particular, Socrates aims to make Theaetetus realize that being and the good or the beneficial are things that are what they are, themselves by themselves, that they are on a par, ontologically speaking, and that reaching for them, and attempting to come to grips with them, in thought, is a requirement for knowledge in general and for dialectic in particular. (shrink)

In this article, we discuss the practice of conducting research in one's own field, in this case, from a position as a researcher with a nursing background doing fieldwork in a hospital and in one's own organization, an orthopedic surgical department. We show how an “insider” researcher position paves the way for analytical insights about sleep as an institutional phenomenon in the orthopedic surgical infrastructure and how acute and elective patient trajectories differ but build on the same logic, creating the (...) same dynamics of inclusion and exclusion. Through a situated and sociomaterial perspective, we analyze different clinical interactions in which we follow the hospital bed as an example of a central relational element that co‐creates sleep as an institutional phenomenon. Inspired by Karen Barad, we demonstrate how to move diffractively when doing and analyzing fieldwork and argue how moving diffractively as a researcher doing fieldwork “at home” is productive and challenges the concept and demand of “distance” as the phenomenological exercise in fieldwork. (shrink)

Criminal offenders may be offered to participate in voluntary rehabilitation programs aiming at correcting undesirable behaviour, as a condition of early release. Behavioural treatment may include direct intervention into the central nervous system (CNS). This article discusses under which circumstances voluntary rehabilitation by CNS intervention is justified. It is argued that although the context of voluntary rehabilitation is a coercive circumstance, consent may still be effective, in the sense that it can meet formal criteria for informed consent. Further, for a (...) consent to be normatively valid (“take the wronging out of the act”) under a coercive circumstance, the subject to be treated must (1) have the sovereign authority to consent, and (2) the offer-giver must be in the right normative position to make the offer. While I argue that subjects do have the sovereign authority to consent to treatment, I also argue that inappropriate offers yield invalid consents. Considerations on inappropriate offers should therefore inform which kinds of CNS intervention-based rehabilitation schemes the state may propose as part of the criminal justice system. Yet as I conclude in this paper, while there are some intrinsic constraints on voluntary rehabilitation programs, the main constraints on voluntary rehabilitation are likely to be contingent overriders. However, CNS intervention is not ruled out as such in the context of voluntary rehabilitation. (shrink)

This article represents conversations with the American composer Libby Larsen in which she described her beliefs about music, music education, and the dilemmas that our current system faces as we seek to provide relevant and meaningful music education to our students. Our conversation explores such topics as cognitive psychology, music theory, cultural practices and developments in American culture, and current music education practices. Larsen brought up many questions about music education in America, providing some suggestions for the future and posing (...) problems for which the solution may require a great deal of imagination by music education teachers. The article is structured as a Socratic dialogue, in which Larsen constructs an inductively strong argu- ment for making radical changes to current music education practice. (shrink)

Revisionists claim that the retributive intuitions informing our responsibility-attributing practices are unwarranted under determinism, not only because they are false, but because if we are all victims of causal luck, it is unfair to treat one another as if we are deserving of moral and legal sanctions. One revisionist strategy recommends a deflationary concept of moral responsibility, and that we justify punishment in consequentialist rather than retributive terms. Another revisionist strategy recommends that we eliminate all concepts of guilt, blame and (...) punishment, and treat dangerous criminals as we treat people with contagious diseases. I argue against both strong and moderate revisionism that it is not unfair to hold persons desert -entailingly responsible insofar as they take an interest in being treated as appraisable, and that it is unfair to persons not to treat them as desert -entailingly responsible contrary to their interests in being treated as such. The interest-based argument, I conclude, give us a justification for communicating retributive attitudes, but may still require a weak revision of our retributive practices, in the direction of a communicative theory of punishment. (shrink)

The 1948 constitution of the World Health Organization (WHO) defines health as ‘a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity’. It was a bold and revolutionary health idea to gain international consensus in a period characterized by fervent anti-communism. This article explores the genealogy of the health definition and demonstrates how it was possible to expand the scope of health, redefine it as ‘well-being’, and overcome ideological resistance to progressive and (...) international health approaches. The first part of the article demonstrates how the health definition was composed through a trajectory of draft ideas from scholars in the history of medicine, as well as political actors working to promote national health insurance. The definition was authored by League of Nations veteran Raymond Gautier, but secretly drew heavily on medical historian Henry E. Sigerist’s controversial book Socialized Medicine in the Soviet Union (1937). The second part analyses how it was possible to resist the ideological pushback against the WHO and secure US ratification. The WHO’s progressive constitution was not simply a deviation from dominant health ideas, but a direct outcome of the entrenched health conflict. The genealogy is based on original archival material from international organizations and US government archives. The article contributes to understandings of the political controversies surrounding the WHO and to scholarship on understandings of health. It also illustrates how influential health ideas cross the boundaries between politics and health sciences, as well as the boundaries between domestic health policy and global health. (shrink)

Recent contributions in moral philosophy have raised questions concerning the prevalent assumption that moral judgments are typologically discrete, and thereby distinct from ordinary and/or other types of judgments. This paper adds to this discourse, surveying how attempts at defining what makes moral judgments distinct have serious shortcomings, and it is argued that any typological definition is likely to fail due to certain questionable assumptions about the nature of judgment itself. The paper concludes by raising questions for future investigations into the (...) nature of moral judgment. (shrink)

Background: In spite of a national strategy for reducing coercion in the mental health services, Norway still has a high rate of involuntary treatment compared to other European countries. It is therefore crucial to study various parties involved in involuntary treatment in order to reduce coercion. Research question: How do patients and staff in a Norwegian locked psychiatric ward experience coercion? Research design: Participant observation and interviews. Participants: A total of 12 patients and 22 employees participated in this study. Ethical (...) considerations: This study is accepted by the National Committee for Medical Health Research Ethics. Findings: The participants experienced coercion in different ways. Patients often felt inferior, while many of the staff felt guilty for violating patients’ dignity, although they ascribed responsibility for their actions to the “system.” The main themes are (1) corrections and house rules, (2) coercion is perceived as necessary, (3) the significance of material surroundings, and (4) being treated as a human being. Discussion: The discussion draws upon the concepts of vulnerability, guilty conscience, and ethical sensitivity, related to the staffs’ divergent views on coercion. Conclusion: Especially among staff, there are divergent views of coercion. Professionals being physically and emotionally close to the patient are more likely to understand him or her as a unique person with individual needs. If patients are kept at a distance, professionals as a group change to understand patients as members of a group with common needs and common restrictions. (shrink)

Emotions change over time. A comprehensive understanding of emotions will require that their temporal nature be observed and analysed. By observing emotion over time, one can disentangle and simultaneously analyse temporal variability within individuals and between-individual variability using a two-step process approach. First, within-person temporal patterns (e.g., covariation, lead–lag relation, periodicity, etc.) are assessed for each subject. Second, between-person analyses are conducted on the within-person patterns. These two steps can be done simultaneously with hierarchical linear models (HLM) or in two (...) actual steps with the process approach. HLM is limited to the intra-individual analysis of linear patterns (e.g., slope, intercept), whereas the process approach can be used to examine non-linear aspects of intra-individual change, such as multivariate patterns, within-subject skew, or phase relations between oscillating processes. In this paper we provide a description of the process approach and present several examples of, as well as suggestions for, intra-individual analysis applied to emotion and individual differences. (shrink)

The paper places the trendy notion of virtuality and virtual reality in a conceptual and historical context that makes it useful in a semiotic perspective. Virtuality is connected with the classical notion of fictionality, in its meaning of both invention and deception. Historically an active, a passive, and a neutral version of the concept can be distinguished. The notion is reinterpreted as a variant of the semiotic processes of deixis. In relation to nature - scenarios, prognoses, hypotheses, etc. - virtuality (...) is seen as a means of anchoring the human subject in nature instead of constructing a nonreal universe separated from it. (shrink)

Science Incarnate: Historical Embodiments of Natural Knowledge. Edited by Christopher Lawrence and Steven Shapin vii + 342 pp. $55.00 cloth, $15.25 paper. Modern Environmentalism: An Introduction. By David Pepper viii +376 pp. £40 cloth, £13.99 paper.

Artificial intelligence is likely to undermine the anthropocentrism of humanism, the master narrative that undergirds the modern world. Humanity will need a new story to structure our beliefs and cooperation around. As different regions explore posthumanist alternatives through fiction, they bring with them distinct traditions of thought. The Swedish TV series _Real Humans_ (2012–2014) and its British remake, _Humans_ (2015–2018), dramatize the challenge of freeing oneself from cultural presumptions. When negotiating personhood with humanoid robots, the Swedish protagonist family presupposes a (...) social-democratic ethos, which is a trace of Scandinavian humanism that carries into the family’s posthumanist beliefs. Using Heideggerian and related perspectives, I analyze these series to make a case for a _dataist_ ontology with potential to re-enchant the modern world and bring forth a new epoch of being. Such a master narrative of _algorithmic universality_ could be facilitated by a new level of interconnectedness made possible by AI. This ontology fulfills the requirements of Robbins and Horta (Introduction, Cosmopolitanisms. New York University Press, New York, pp 1–17, 2017) who call for a cosmopolitanism of inclusivity with room for overlapping conceptions to remedy our present era’s international dysfunction. The Swedish and British TV series suggest that even if humanity’s uniting around a dataist master narrative were to be driven by intercultural competition, the decisive choice might be out of human hands. Paradoxically, such disempowering in terms of agency is portrayed as necessary for human _re-enchantment_. (shrink)

The social sciences lack concepts and theories for an understanding of what new information technology is doing to our society. The article sketches the outlines of a broad historical and comparative approach to this issue: ‘an anthropology of information technology’. At the base is the idea ofexternalisation of knowledge as a historical process. Three main epochs are characterised by externalisation of knowledge through a) spoken language and a social organisation of specialists, b) writing and c) computer programming. The impact of (...) expert systems on learning is also discussed. (shrink)

LARSEN A‐C. Nursing Inquiry 2012; 19: 334–344 Trappings of technology: casting palliative care nursing as legal relationsCommunity palliative care nurses in Perth have joined the throng of healthcare workers relying on personal digital assistants (PDAs) to store, access and send client information in ‘real time’. This paper is guided by Heidegger’s approach to technologies and Habermas’ insights into the role of law in administering social welfare programs to reveal how new ethical and legal understandings regarding patient information add to nursing’s (...) professional responsibilities. This qualitative research interprets data from interviews with twenty community palliative care nurses about clients’ legal rights to informational privacy and confidentiality. It explores nurses’ views of their nursing responsibilities regarding clients’ legal rights, liability issues, bureaucratic monitoring and enforcement procedures. It concludes that nurses and clients are construed as legal subjects entrenched in legal relations that have magnified since these nurses began using PDAs in 2005/2006. (shrink)

Pepper Culpepper’s seminal Quiet Politics and Business Power has revitalized the study of when business elites can shape policies away from public scrutiny. This article takes the concept of quiet politics to a new, and surprising, set of actors: trade union leaders. Focusing on the case of Denmark, it argues that quiet politics functions through political elite networks and that this way of doing politics favors a particular kind of corporatist coordination between the state, capital, and labor. Rather than showing (...) macrocorporatist coordination between the two classes and governments, it identifies representatives of business and labor that hold privileged positions in political elite networks. Representatives of segments are found in industries important for the Danish economy, specifically, the exporting manufacturing sector. Being at the core of the network requires not only a key position in the Danish economy but also an understanding that politics is often done best without politicians and voters. The analysis shows that trade union and business association representatives work closely on a wide number of issues through quiet politics, using their extensive network to broker and foster agreement between different stakeholders. (shrink)

John Stuart Mill observed in his Autobiography that he was a rare case in nineteenth-century Britain because he had not lost his religion but never had any. He was a freethinker from beginning to end. What is not often realized, however, is that Mill's life was nevertheless impinged upon by religion at every turn. This is true both of the close relationships that shaped him and of his own, internal thoughts. Mill was a religious sceptic, but not the kind of (...) person which that term usually conjures up. The unexpected presence and prominence of spirituality is not only there in Mill's late, startling essay, 'Theism', in which he makes the case for hope in God and in Christ. It is everywhere--in his immediate family, his best friends, and his vision for the future. It is even there in such a seemingly unlikely place as his Logic, which repeatedly addresses religious themes. John Stuart Mill: A Secular Life is a biography which follows one of Britain's most well-respected intellectuals through all of the key moments in his life from falling in love to sitting in Parliament and beyond. It also explores his classic works including, On Liberty, Principles of Political Economy, Utilitarianism, and The Subjection of Women. In this well-researched study which offers original findings and insights, Timothy Larsen presents the Mill you never knew. The Mill that even some of his closest disciples never knew. This is John Stuart Mill, the Saint of Rationalism--a secular life and a spiritual life. (shrink)

The aim of this paper is to contribute to the discussion of expertise and skilled movement in sport by analysing the bodily practice of learning a new movement at a high level of skill in parkour. Based on Sennett’s theory of craftsmanship and an ethnographic field study with experienced practitioners, the analysis offers insight into the skilful, contextual and unique practice of parkour, and contributes to the renewed discussion of consciousness in sport at a high level of skill. With Sennett’s (...) concept of craftsmanship, it is possible to describe and grasp important aspects of obstacles put up, repetitions and material consciousness in developing perceptual and physical skills in parkour. The parkour craftsmen conduct a constant dialogue between concrete, material practices and thinking. It is argued in the article that Sennett’s ideas about craftsmanship are, in many ways, similar to Dreyfus and Dreyfus’ concept of mastery, but are less elitist and exclusive than the theory of skill acquisition... (shrink)

The recommended treatment for dual diagnosis - the co-occurrence of substance use and another mental disorder - requires seamless integration of the involved disciplines and services. However, no integrative framework exists for communicating about dual diagnosis cases across disciplinary or sectoral boundaries. We examine if Enactive Psychiatry may bridge this theoretical gap. We evaluate the enactive approach through a two-step pragmatic lens: Firstly, by taking a historical perspective to describe more accurately how the theoretical gap within the field of dual (...) diagnosis initially developed. Secondly, by applying the Enactive Psychiatry approach to data from a longitudinal study on the trajectory of cannabis use in psychosis disorders. By applying the theory rather than simply presenting it, we position ourselves better to evaluate whether it may assist the purpose of achieving a more expedient pragmatic “grip” on the field of dual diagnosis. In our discussion, we suggest that this may very well be the case. Finally, we consider the enactive approach as one of a small handful of new theories of mental disorders that draw on systems thinking and ecological psychology, and discuss whether they have the potential for a wider progressive problemshift within psychiatry. The case in favor of such potential, we argue, is less strong unless the role of complexity, similar to that seen within the dual diagnosis field, may be demonstrated for other fields of clinical practice. (shrink)

The ethics of dissent is developed in this book through a new interpretation of the German philosopher Jrgen Habermas' communicative ethics and his political ...

The notion of quality features prominently in contemporary discourse. Numerous ratings, rankings, metrics, auditing, accreditation, benchmarking, smileys, reviews, and international comparisons are all used regularly to capture quality. This book paves the way in exploring the socio-political implications of evaluative statements, with a specific focus on the contribution of the concept of quality to these processes. Drawing on perspectives from the history of ideas, sociology, political science and public management, Dahler-Larsen asks what is the role of quality, and more specifically (...) quality inscriptions, such as measurement? What do they accomplish? And finally, as a consequence of all this, does the term quality make it possible to deal with public issues in a way that lives up to democratic standards? This cross-disciplinary book will be of interest to scholars and students across various fields, including sociology, social epistemology, political science, public policy, and evaluation. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Self-Reference:Theory and Didactics between Language and LiteratureSvend Erik Larsen (bio)Semiotics of Self-ReferenceLiterary metafiction constitutes the extreme case of self-referential texts. Therefore we can either discard it as generally irrelevant for the understanding of the cultural functions of texts, or use it as a point of departure for the formulation of both general and basic aspects of such functions. The position taken in this essay will opt for the last (...) possibility, although I know full well that already the term "metafiction" itself inevitably triggers a variety of skeptical reactions. Does it not just refer to some author's self-centered ruminations in the ivory tower? Or a topic for the nerds of literary studies with a taste for theoretical acrobatics? If so, in both cases following metafictional inclinations results in complete isolation from both the context of literature and its readers.However, one may also adopt the opposite position. The metafictional features of literature constitute one of the means by which literature reaches out to its context and also engages its readers. And critical endeavors are not necessarily devoid of anything but their own concepts. They may instead pave the way for methodological and didactic considerations that ultimately make difficult literature more accessible as a cultural phenomenon. Rather than dwelling upon subtle theoretical differences in the definition of what metafiction is, I will therefore engage in a methodological approach: what kind of questions can we put to the texts, and what kind of answers can we reasonably come up with when using metafiction in a methodological and didactic framework?I shall begin by proposing a set of definitions broader than metafiction that will allow me to zoom in on it as a relevant methodological concept that opens for didactic reflections. The notion of metalevel will constitute my starting point. In its broadest sense, a metalevel indicates a position outside a given field of objects or meanings and in relation to it. But rather than relating [End Page 13] to the content of the field in question, the metalevel is supposed to serve as a platform enabling us to observe and evaluate basic principles and function of the field. This is the role of, for example, the theory of science or of epistemology in relation to the particular knowledge of various sciences. We may call it an epistemological metalevel.In a more restricted sense, a metalevel comprises a level in relation to a given sign system — rather than to a given field of objects — from which we can observe and evaluate the basic principles defining the function, range and validity of the sign system. This is the role of, for example, musicology in relationto the acoustic arts, art criticism in relation to the visual arts, medicine in relation to bodily symptoms. We may call it an inter-semiotic metalevel.Finally, in its most restricted sense, a metalevel points toward a level inside a given sign system from which we can refer to this sign system itself,but not in relation to a given field of objects or in relation to another sign system. We may call this level an intra-semiotic metalevel. In this context, language is a unique system, which in this capacity shapes literature as a particular linguistic phenomenon. Only inside the semiotic system of language can the intra-semiotic metalevel have two different functions:The first function is as a science of language, linguistics, which is itself a verbal sign system. In verbal scientific descriptions and arguments we may scrutinize the natural or everyday language as a medium, that is, its basic linguistic structures and principles, without taking into consideration its content, which it may share with other media. Texts and pictures may refer to the same phenomenon even if such references do not overlap completely. All other sciences differ from linguistics in this respect, because they cannot deal scientifically with their non-verbal objects through the same non-verbal medium as that which makes up the object, but need the support of a linguistic metalevel or at least of signs that are linguistically anchored. Even mathematics or other strictly formal sign systems are based on natural languages. We may refer to... (shrink)

We use hyperbolic towers to answer some model-theoretic questions around the generic type in the theory of free groups. We show that all the finitely generated models of this theory realize the generic type $p_{0}$ but that there is a finitely generated model which omits $p^{}_{0}$. We exhibit a finitely generated model in which there are two maximal independent sets of realizations of the generic type which have different cardinalities. We also show that a free product of homogeneous groups is (...) not necessarily homogeneous. (shrink)