Es soll ein Beitrag zur epistemischen Charakterisierung von Computersimulationen als jenseits von Experiment und Theorie geleistet werden. Es wird argumentiert, dass die in der Simulationstechnik eingesetzten Verfahren nicht numerische Lösungen liefern, sondern deren Dynamik mittels generativer Mechanismen imitieren. Die Computersimulationen in der Klimatologie werden als systematisches wie historisches Fallbeispiel behandelt. Erst "Simulationsexperimente" gestatten es, mittels Modellen eine Dynamik zu imitieren, ohne deren Grundgleichungen zu "lösen". /// Computer simulations will be characterized in epistemic respect as a method between experiment and theory. (...) It will be argued that simulations do not provide numerical solutions, rather they use generative mechanisms to imitate a dynamics. Climate science will be considered as a case both systematically and historically. Only simulation experiments allow to build models that imitate a dynamics without solving the relevant equations. (shrink)

The aim of this article is to elucidate the processes that characterize natural language interpretation. The basic hypothesis is that natural language interpretation can be characterized as an optimization problem. This innovative view on interpretation is shown to account for the crucial role of contextual information while avoiding certain well-known problems associated withcompositionality. This will become particularly clear in the context of incomplete expressions. Our approach takes as a point of departure total freedom ofinterpretation in combination with the parallel application (...) of soft constraints on possible interpretations. These constraints can be contextual, intonational or syntactic in nature. The integration of pragmatic andsyntactic/semantic information in a system of ranked constraints is proposed to correctly derive the optimal interpretations in cases of nominal anaphorization, determiner quantification and elliptical comparatives. (shrink)

The aim of this article is to elucidate the processes that characterize natural language interpretation. The basic hypothesis is that natural language interpretation can be characterized as an optimization problem. This innovative view on interpretation is shown to account for the crucial role of contextual information while avoiding certain well-known problems associated with compositionality. This will become particularly clear in the context of incomplete expressions. Our approach takes as a point of departure total freedom of interpretation in combination with the (...) parallel application of soft constraints on possible interpretations. These constraints can be contextual, intonational or syntactic in nature. The integration of pragmatic and syntactic/semantic information in a system of ranked constraints is proposed to correctly derive the optimal interpretations in cases of nominal anaphorization, determiner quantification and elliptical comparatives. (shrink)

The Special Issue is started with the observation that the tension of mind and society, i.e. cognitive and sociological/cultural dimensions in knowledge production and innovation, is a well-known topic of academic discourse in Science and Technology Studies. The introduction mentions some historical hallmarks of the involved perspectives and discussions to outline the background of the Special Issue. The purpose of its contributions, which are briefly presented at the end of the introduction, is to review this long-existing tension of cognitive and (...) cultural dimensions in knowledge production and innovation in the light of the cognitive and societal changes that have just begun and will have a huge impact in the future. (shrink)

Regarding the question of “theory”, the paper takes the perspective of creation, i. e. of producing texts that exhibit theoretical qualities and that in this sense both do justice to a – certainly complex – “function” of philosophical theory and also “work” as theory (namely in a sustainable way, and perhaps also beyond the current scientific orthodoxies) and can thus be received in the long line of the philosophically relevant reading canon. On the one hand, it is proposed to take (...) the project character of philosophical theory seriously. On the other hand, the conditions for the success of philosophical (theoretical) prose have to be looked at carefully. In addition to scholarship and a critical concern with and deep knowledge of discourse, literary qualities are also relevant. There is interplay between time-bound – i. e. historically changing – requirements and a paradoxically persistent style of philosophizing that proceeds despite the plurality of canonical references. “Philosophy”, of course, is not something timeless; it remains something provincial on an intercultural scale and, in principle, something that can be lost. (shrink)

Name der Zeitschrift: Zeitschrift für Religionswissenschaft Jahrgang: 23 Heft: 1 Seiten: 188-206.

German description: Wie wird das schlechthin Undarstellbare sinnlich darstellbar? Petra Bahr zeigt in ihren Studien zur historischen Semantik des Darstellungsbegriffs zwischen 1750 und 1800, dass diese Frage das 18.

Der erste der auf vier Bände angelegten Sichtungen der Bestimmung,Leben' stellt in chronologischer Folge wichtige Grundkonstellationen des Begriffsfeldes Leben von Aristoteles bis Schelling vor. Exemplarisch wird herausgearbeitet, wie in der europäischen Kulturgeschichte vom Leben geredet wurde, wann und weshalb der Lebensbegriff an Bedeutung gewann und warum die Rede vom Leben mit einer eigenen Konfliktgeschichte verbunden ist. Von besonderem Interesse sind dabei jene Diskussionen, die für christliche Traditionen direkt oder latent relevant wurden. Damit soll den Lebensdiskursen innerhalb der bioethischen Debatten ein (...) diese anregendes Gegengewicht gegeben werden. Denn um entscheiden zu können, was zum Wohl von Lebewesen mit Lebendem getan und gelassen werden sollte, dürfte hilfreich sein, zu klären, was genau gesteigert, geschützt, renaturalisiert, kultiviert oder in Frieden gelassen werden soll. Mit Beiträgen von:Petra Bahr, Christoph Ellsiepen, Matthias Freudenberg, Gerald Hartung, Christina Hoegen-Rohls, Tom Kleffmann, Dietrich Korsch, Christof Landmesser, Christoph Markschies, Peter McLaughlin, Jörn Müller, Hanns Nissing, Enno Rudolph, Stephan Schaede, Konrad Schmid, Christian Senkel, Joachim von Soosten, Philipp Stoellger. (shrink)

Debates in animal ethics are largely characterized by ethical monism, the search for a single, timeless, and essential trait in which the moral standing of animals can be grounded. In this paper, we argue that a monistic approach towards animal ethics hampers and oversimplifies the moral debate. The value pluralism present in our contemporary societies requires a more open and flexible approach to moral inquiry. This paper advocates the turn to a pragmatic, pluralistic approach to animal ethics. It contributes to (...) the development of such an approach in two ways. It offers a pragmatist critique of ethical monism in animal ethics and presents the results of a qualitative study into the value diversity present in the different ways of thinking about animals in the Netherlands. Carefully arranged group discussions resulted in the reconstruction of four distinctive moral value frameworks that may serve as instruments in the future process of moral inquiry and deliberation in the reflection on animal use. (shrink)

The topic of this thesis is how we should treat tiny probabilities of vast value. This thesis consists of six independent papers. Chapter 1 discusses the idea that utilities are bounded. It shows that bounded decision theories prescribe prospects that are better for no one and worse for some if combined with an additive axiology. Chapter 2, in turn, points out that standard axiomatizations of Expected Utility Theory violate dominance in cases that involve possible states of zero probability. Chapters 3–6 (...) discuss the idea that we should ignore tiny probabilities in practical decision-making. Chapter 3 argues that discounting small probabilities solves the ‘Intrapersonal Addition Paradox’ and thus helps avoid the Repugnant Conclusion. Chapter 4 explores what the most plausible version of this view might look like and what problems the different versions have. Chapter 5 focuses on one type of problem, namely, money pumps. The Independence Money Pump, in particular, presents a difficult challenge for those who wish to discount small probabilities. Finally, Chapter 6 discusses the implications of discounting small probabilities for the value of the far future. (shrink)

Debates in animal ethics are largely characterized by ethical monism, the search for a single, timeless, and essential trait in which the moral standing of animals can be grounded. In this paper, we argue that a monistic approach towards animal ethics hampers and oversimplifies the moral debate. The value pluralism present in our contemporary societies requires a more open and flexible approach to moral inquiry. This paper advocates the turn to a pragmatic, pluralistic approach to animal ethics. It contributes to (...) the development of such an approach in two ways. It offers a pragmatist critique of ethical monism in animal ethics and presents the results of a qualitative study into the value diversity present in the different ways of thinking about animals in the Netherlands. Carefully arranged group discussions resulted in the reconstruction of four distinctive moral value frameworks that may serve as instruments in the future process of moral inquiry and deliberation in the reflection on animal use. (shrink)

Debates in animal ethics are largely characterized by ethical monism, the search for a single, timeless, and essential trait in which the moral standing of animals can be grounded. In this paper, we argue that a monistic approach towards animal ethics hampers and oversimplifies the moral debate. The value pluralism present in our contemporary societies requires a more open and flexible approach to moral inquiry. This paper advocates the turn to a pragmatic, pluralistic approach to animal ethics. It contributes to (...) the development of such an approach in two ways. It offers a pragmatist critique of ethical monism in animal ethics and presents the results of a qualitative study into the value diversity present in the different ways of thinking about animals in the Netherlands. Carefully arranged group discussions resulted in the reconstruction of four distinctive moral value frameworks that may serve as instruments in the future process of moral inquiry and deliberation in the reflection on animal use. (shrink)

This paper is a contribution to the development of model theory of fuzzy logic in narrow sense. We consider a formal system EvŁ of fuzzy logic that has evaluated syntax, i. e. axioms need not be fully convincing and so, they form a fuzzy set only. Consequently, formulas are provable in some general degree. A generalization of Gödel's completeness theorem does hold in EvŁ. The truth values form an MV-algebra that is either finite or Łukasiewicz algebra on [0, 1].The classical (...) omitting types theorem states that given a formal theory T and a set Σ of formulas with the same free variables, we can construct a model of T which omits Σ, i. e. there is always a formula from Σ not true in it. In this paper, we generalize this theorem for EvŁ, that is, we prove that if T is a fuzzy theory and Σ forms a fuzzy set , then a model omitting Σ also exists. We will prove this theorem for two essential cases of EvŁ: either EvŁ has logical constants for all truth values, or it has these constants for truth values from [0, 1] ∩ ℚ only. (shrink)

The article briefly introduces an academic debate between two different responses to the predicament of the human in the ecological crisis, namely the object-oriented ontology and the vitalist response to that approach. Based on that introduction, it argues for the need of a complementing analytical tool and sketches the contours of such a tool by suggesting an epistemological tactic for a decolonizing human distinctiveness. The article suggests an analytical maneuver to be used by scholars who aim at decolonizing nature from (...) human oppression, a tool that enables illumination and critical scrutiny of the epistemological role of the human as one stage toward destabilizing the notion of human distinctiveness. The article, thus, introduces an approach where human distinctiveness is not understood as a factual distinctiveness—not an essential difference between the human and the nonhuman world—but where human distinctiveness is critically viewed as a discursive role in theoretical work, a role that can be temporarily put to use by the scholar as a decolonizing epistemological tactic. In other words, human distinctiveness is here tactically used as a tool to critically scrutinize the idea of human distinctiveness rather than to safeguard it. (shrink)

IntroductionLittle is known about risk factors for both Long COVID and somatic symptoms that develop in individuals without a history of COVID-19 in response to the pandemic. There is reason to assume an interplay between pathophysiological mechanisms and psychosocial factors in the etiology of symptom persistence.ObjectiveTherefore, this study investigates specific risk factors for somatic symptom deterioration in a cohort of German adults with and without prior SARS-CoV-2 infection.MethodsGerman healthcare professionals underwent SARS-CoV-2 IgG antibody testing and completed self-rating questionnaires at baseline (...) and 21 months later between April 2020 and February 2022. Differences in variables between the time points were analyzed and a regression analysis was performed to predict somatic symptom deterioration at follow-up.ResultsSeven hundred fifty-one adults completed both assessments. Until follow-up, n = 58 had contracted SARS-CoV-2 confirmed by serology. Between baseline and follow-up, signs of mental and physical strain increased significantly in the sample. Symptom expectations associated with COVID-19 and a self-reported history of COVID-19, but not serologically confirmed SARS-CoV-2 infection, significantly predicted somatic symptom deterioration at follow-up. A further predictor was baseline psychological symptom burden.ConclusionsThis study supports a disease-overarching biopsychosocial model for the development of burdensome somatic symptoms during the COVID-19 pandemic and supports research findings that symptom burden may be more related to the psychosocial effects of the pandemic than to infection itself. Future studies on Long COVID should include SARS-CoV-2 negative control groups and consider symptom burden prior to infection in order to avoid an overestimation of prevalence rates. (shrink)

Heidegger hielt die unter dem Titel Geschichte des Zeitbegriffs angekundigte Vorlesung im Sommer-Semester 1925 in der Marburger Universitat. Er gelangte jedoch nicht mehr zur Ausfuhrung der zentralen Thematik. Der Themenkreis der Vorlesung ist mit der Nennung des Untertitels abgesteckt: Prolegomena zu einer Phanomenologie von Geschichte und Natur. Heideggers thematische Uberlegungen beginnen mit einer Kennzeichnung der Situation von Philosophie und Wissenschaft in der zweiten Halfte des 19. Jahrhunderts und stellen das seiner Deutung nach entscheidende Ereignis dieser Zeit heraus: den Durchbruch der (...) Phanomenologie als philosophische Forschung. Er untersucht ihre wesentlichen Entdeckungen, verteidigt sie gegen Missverstandnisse, um dann seinerseits Kritik vorzubringen, wo die Phanomenologie ihrer Forderung zu den Sachen selbst nicht gerecht wird. (shrink)

Nebel argues for the Repugnant Conclusion via the “Intrapersonal Repugnant Conclusion,” on which certainty of a mediocre life is better for individuals than a sufficiently small chance of an excellent life. In this article, I deny that acceptance of the Intrapersonal Repugnant Conclusion leads us to the Repugnant Conclusion. I point out that on many views which avoid the Repugnant Conclusion we should discount very small probabilities down to zero. If we do, then Nebel’s crucial premise of Ex Ante Pareto (...) fails, because discounting at the individual level can fail to match up with discounting at the population level. (shrink)

To address an ethics of refusal in higher education is to wager in the name of future possibles not already governed by the extractive politics of colonial progress and oppressive regimes of knowing and doing. In this essay, Petra Mikulan shows American pragmatism to have always been, in a certain sense, post-Anthropocene in its condition of emergence, bound up with settler colonialism and its extractive geopolitics. However, pragmatism in its speculative trust can also help engage education in thinking of (...) a future that does not belong to a presupposed humanity and its “nature” by dramatizing a certain insistence of educational institutions on maintaining comfort and trust in the “common good.” What is at stake in education facing planetary ecological devastation and intensified racial and social injustices, Mikulan contends, is an ethics of refusal of institutionalized learning, knowing, and doing tout court, particularly if these educational regimes continue to insist on governing what are deemed the only possible (and thus impossible) enactments of education. (shrink)

To see whether the mental and the neural have common attributes that could resolve some of the traditional dichotomies, we review neuroscientific data on the visual system. The results show that neuronal and perceptual function share a parallel and hierarchical architecture which is manifest not only in the anatomy and physiology of the visual system, but also in normal perception and in the deficits caused by lesions in different parts of the system. Based on the description of parallel hierarchical levels (...) of active information processing in the visual brain, we suggest a concept of dissociable levels of perception, advocating that the phenomenal perception and recognition is realized in the functional integrity of a network of reciprocal cortico-cortical connections. The properties shared by neuronal and perceptional functions provide a basis for a neuromental monism in which both functions are attributed a causal role. (shrink)

Synthetic biology is an emerging technology that asks for inclusive reflection on how people frame the field. To unravel how we can facilitate such reflection, this study evaluates the Frame Reflection Lab. Building upon playfulness design principles, the FRL comprises a workshop with video-narratives and co-creative group exercises. We studied how the FRL facilitated frame reflection by organizing workshops with various student groups. Analysis of 12 group conversations and 158 mini-exit surveys yielded patterns in first-order reflection as well as patterns (...) in second-order reflection. Also patterns in participants’ framing of synthetic biology could be induced; participants’ viewpoints converged to some extent, yet with openness to individual viewpoint differences. Although the FRL method fortified the reflection processes of participants, the narratives and the workshop’s flexible format could inhibit the reflection too. Therefore, we advise designers of future frame reflection methods to apply stronger conversational facilitation and narratives of slightly mysterious yet identifiable narrators, in case e.g. video-narratives are created and used to scaffold the reflection process. Nevertheless, we argue that the use of a playful frame reflection method like the FRL could function well as a step to precede more application-specific deliberation or decision-making on synthetic biology and as a method for the collection of contemporary citizen viewpoints plus rationales underlying these, for the further responsible development of the emerging field. (shrink)

Die interdisziplinäre Forschungsgruppe "Poetik und Hermeneutik" und ihre Mitglieder haben die geistes- und kulturwissenschaftliche Landschaft der alten Bundesrepublik geprägt wie vielleicht sonst nur noch die Kritische Theorie. Zahlreiche Interviews mit den wichtigsten noch lebenden Akteuren erlauben einen ebenso erkenntnisreichen wie unterhaltsamen Blick hinter die Kulissen von Poetik & Hermeneutik. Unter welchen Bedingungen und mit welchen Absichten wurde die Gruppe von Hans Blumenberg, Clemens Heselhaus, Wolfgang Iser und Hans Robert Jauß ursprünglich gegründet? Wie entfalteten sich Diskussionen und Kontroversen? Wie kam P&H (...) zur Blüte und warum scheiterte ein möglicher Generationenwechsel? Als Zeitzeugen gehört werden unter anderen Aleida und Jan Assmann, Ferdinand Fellmann, Manfred Frank, Gerhart von Graevenitz, Hans Ulrich Gumbrecht, Anselm Haverkamp, Dieter Henrich, Helga Jauss-Meyer, Renate Lachmann, Thomas Luckmann, Hermann Lübbe, Christian Meier, Jürgen Schlaeger, Gabriele Schwab, Wolf-Dieter Stempel, Karlheinz Stierle, Rainer Warning und Harald Weinrich. (shrink)

Die Sprache weiß, wovon sie spricht. Das zeigt sich im Kompositum "ef?μe ", von dem das deutsche "ephemer" abgeleitet wurde. Während das Präfix "epi" u.a. die Bedeutungen "darauf, während, bis zu" umfasst, bedeutet "hemära" nicht nur "Tag", sondern auch "Zeit" und "Leben". Das Ephemere spricht existenziell die Daseinsweise des Menschen an. Ephemeroi, Menschen, sind "Eintagswesen", "eines Schattens Traum". Ohne das Ephemere als Kennzeichen der Moderne und Postmoderne zu vernachlässigen, unter Berücksichtigung der Wechselwirkungen mit Medienumbrüchen und Künsten stehen Fragen nach der (...) Zeitlichkeit als Bedingung der Möglichkeit allen Existierens, aber auch nach den Weisen der Zeitigung von Zeit, die die konkrete Lebenszeit prägen, im Zentrum. Mit Beiträgen von: Gabriele Brandstetter, Danica Darkic, Martina Dobbe, Martin Dornberg, Hinderk M. Emmrich, Daniel Fetzner, Angela Melitopoulos, Petra Maria Meyer, Jürgen Partenheimer, Claus-Arthur Scheier, Michael Schirner, Annette Stahmer, Georg Christoph Tholen, Michael Wetzel, Martin Zenck. (shrink)

Originally presented as the author's thesis, Heidelberg, 1977.

English summary: How can something which is absolutely unrepresentable be represented for the senses? In her studies of historical semantics of the concept of representation between 1750 and 1800, Petra Bahr shows that in the fields of aesthetics and religious theory this was a central question in the 18th century. From the perspective of the philosophy of religion, the significance of Baumgarten's Aesthetica and Kant's Critique of Judgment, two works which as a rule are perceived as competing philosophies of (...) art, has been reconstructed here in such a manner that Kant's lasting reference to Baumgarten's insights remains visible even in his overcoming of them. The discussion concerning the role of the productive power of imagination and the redefinition of the understanding of symbols functions as a link between the two philosophers. German description: Wie wird das schlechthin Undarstellbare sinnlich darstellbar? Petra Bahr zeigt in ihren Studien zur historischen Semantik des Darstellungsbegriffs zwischen 1750 und 1800, dass diese Frage das 18. Jahrhundert nicht nur in asthetischer, sondern auch in religionstheoretischer Perspektive beschaftigt. Die religionsphilosophische Dignitat von Baumgartens Aesthetica und Kants Kritik der Urteilskraft, zweier in der Regel nur als konkurrierende Philosophien der Kunst wahrgenommenen Werke, wird dabei so rekonstruiert, dass der bleibende Bezug Kants auf die Einsichten Baumgartens auch noch in deren Uberwindung sichtbar bleibt: die Rolle der produktiven Einbildungskraft, die Neubestimmung des Symbolverstandnisses und die Umbesetzung des Begriffs der sinnlichen Reprasentation. Mit einem sinngeschichtlichen Zugang wird die reiche und wechselvolle Vorgeschichte rekonstruiert, die die Kritik der Urteilskraft zu allererst als die Antwort Kants auf ausstehende Probleme der sinnlichen Darstellung des Undarstellbaren verstehbar macht. (shrink)

Es soll ein Beitrag zur epistemischen Charakterisierung von Computersimulationen als jenseits von Experiment und Theorie geleistet werden. Es wird argumentiert, dass die in der Simulationstechnik eingesetzten Verfahren nicht numerische Lösungen liefern, sondern deren Dynamik mittels generativer Mechanismen imitieren. Die Computersimulationen in der Klimatologie werden als systematisches wie historisches Fallbeispiel behandelt. Erst "Simulationsexperimente" gestatten es, mittels Modellen eine Dynamik zu imitieren, ohne deren Grundgleichungen zu "lösen". /// Computer simulations will be characterized in epistemic respect as a method between experiment and theory. (...) It will be argued that simulations do not provide numerical solutions, rather they use generative mechanisms to imitate a dynamics. Climate science will be considered as a case both systematically and historically. Only simulation experiments allow to build models that imitate a dynamics without solving the relevant equations. (shrink)

The fundamental question whether, or in which sense, science informs us about the real world has pervaded the history of thought since antiquity. Is what science tells us about the world determined unambiguously by facts or does the content of any scientific theory in some way depend on the human condition? "Sokal`s hoax" added a new dimension to this controversial debate, which very quickly came to been known as "Science Wars". "Knowledge and the World" examines and reviews the broad range (...) of philosophical positions on this issue, stretching from realism to relativism, to expound the epistemic merits of science, and to address the central question: in which sense can science justifiably claim to provide a truthful portrait of reality? This book addresses everyone interested in the philosophy and history of science, and in particular in the interplay between the social and natural sciences. (shrink)

The aim of this article is to investigate whether choosing the appropriate referring expression requires taking into account the hearer’s perspective, as is predicted under some versions of bidirectional Optimality Theory but is unexpected under other versions. We did this by comparing the results of 25 young and 25 elderly adults on an elicitation task based on eight different picture stories, and a comprehension task based on eight similar written stories. With respect to the elicitation task, we found that elderly (...) adults produce pronouns significantly more often than young adults when referring to the old topic in the presence of a new topic. With respect to the comprehension task, no significant differences were found between elderly and young adults. These results support the hypothesis that speakers optimize bidirectionally and take into account hearers when selecting a referring expression. If the use of a pronoun will lead to an unintended interpretation by the hearer, the speaker will use an unambiguous definite noun phrase instead. Because elderly adults are more limited in their processing capacities, as is indicated by their smaller working memory capacity, as speakers they will not always be able to reason about the hearer’s choices. As a result, they frequently produce non-recoverable pronouns. (shrink)

After a brief explanation of my approach, this paper questions the foundations of a phenomenological theory of law, deploying the argument in three steps.In a first step I reconstruct the connection between Anspruchand Anrecht as developed in Waldenfels’ paradigm of responsiveness. Can law be characterised as an order that is able to ‘respond’ in this specific sense?The second step confronts the radical perspective of a phenomenology of the alien with the question of order. Can a theory of order characterise law (...) as ‘just,’ given that modern positive law is explicitly contained in and founded on itself? In a third step I review the boundaries of law. Would a phenomenology of law acknowledge law as a dimension that – inside the boundaries of law as order – is structurally able to react to the alien and to respond to alien appeals? The overall answer to these questions will be negative.A phenomenology of the alien will not surmount the boundaries inherent to the legal order as order – which push- es the question of justice to the outer limits of the law. The question of the alien, then, does not refer to questions within law; rather, it refers to the problem of juridification or to the sacrifices to be made to obtain access to rights. Decisive is the step into the realm of law, not a certain rule or a decision within thatrealm.If one is to pursue the phenomenological viewpoint of the alien and the dual theme of Anspruch and Antwort, legal phenomena should be considered from the problem of order – in a critical vein to be sure. (shrink)

Wnt proteins can activate different intracellular signaling cascades in various organisms by interacting with receptors of the Frizzled family. The first identified Wnt signaling pathway, the Wnt/β‐catenin pathway, has been studied in much detail and is highly conserved among species. As to non‐canonical Wnt pathways, the current situation is more nebulous partly because the intracellular mediators of this pathway are not yet fully understood and, in some cases, even identified. However, there are increasing data that prove the existence of non‐canonical (...) Wnt signaling and demonstrate its involvement in different developmental processes. In vertebrates, Wnt‐11 and Wnt‐5A can activate the Wnt/JNK pathway, which resembles the planar cell polarity pathway in Drosophila. The Wnt/Ca2+‐pathway has only been described in Xenopus and zebrafish so far and it is unclear whether it also exists in other organisms. Two recent papers provide us with new insight into non‐canonical Wnt signaling by (1) presenting a new intracellular mediator of non‐canonical signaling in Xenopus1 and (2) implicating the existence of an additional non‐canonical Wnt signaling pathway in flies.2 BioEssays 24:881–884, 2002. © 2002 Wiley Periodicals, Inc. (shrink)

While action selection strategies in well‐defined domains have received considerable attention, little is yet known about how people choose what to do next in ill‐defined tasks. In this contribution, we shed light on this issue by considering everyday tasks, which in many cases have a multitude of possible solutions (e.g., it does not matter in which order the items are brought to the table when setting a table) and are thus categorized as ill‐defined problems. Even if there are no hard (...) constraints on the ordering of subtasks in everyday activities, our research shows that people exhibit specific preferences. We propose that these preferences arise from bounded rationality, that is, people only have limited knowledge and processing power available, which results in a preference to minimize the overall physical and cognitive effort. In the context of everyday activities, this can be achieved by (a) taking properties of the spatial environment into account to use them to one's advantage, and (b) employing a stepwise‐optimal action selection strategy. We present the Opportunistic Planning Model as an explanatory cognitive model, which instantiates these assumptions, and show that the model is able to generalize to new everyday tasks, outperforming machine learning models such as neural networks during generalization. (shrink)

This review study was conducted to describe how temperament is related to school readiness. The basic research question was whether there is any relationship between later school success and temperament in children and, if so, what characterizes it. A systematic search of databases and journals identified 27 papers that met the two criteria: temperament and school readiness. The analytical strategy followed the PRISMA method. The research confirmed the direct relationship between temperament and school readiness. There is a statistically significant relationship (...) between temperament and school readiness. Both positive and negative emotionality influence behavior (especially concentration), which is reflected in the approach to learning and school success. (shrink)