Objective: Symptom improvement is often examined as an indicator of a good outcome of accessing mental health services. However, there is little evidence of whether symptom improvement is associated with other indicators of a good outcome, such as a mutual agreement to end treatment. The aim of this study was to examine whether young people accessing mental health services who meaningfully improved were more likely to mutually agree to end treatment.Methods: Multilevel multinomial regression analysis controlling for age, gender, ethnicity, and (...) referral source was conducted on N = 8,995 episodes of care [Female = 5,469, 61%; meanAge = 13.66 years] using anonymised administrative data from young people's mental health services.Results: Compared to young people with no change in mental health difficulties, those showing positive meaningful changes in mental health difficulties were less likely to have case closure due to non-mutual agreement. Similarly, they were less likely to transfer or end treatment for other reasons than by case closure due to mutual agreement.Conclusion: The findings suggest that young people accessing mental health services whose symptoms meaningfully improve are more likely to mutually agree to end treatment, adding to the evidence that symptom improvement may be appropriate to examine as an indicator of a good outcome of accessing mental health services. (shrink)

Drawing on the interactionist perspective of innovation and on the sustainable ethical strength framework, the present research examines the moderating role of supervisors’ moral courage to go beyond compliance in the relationships between teamwork quality, team creativity, and team idea implementation. Two field studies, using multi-source and multi-wave data, indicated that teamwork quality was positively related to team idea implementation via team creativity, particularly when team supervisors revealed moral courage to go beyond compliance. When supervisors lacked such courage, teams struggled (...) to develop creative ideas and to implement them. Robustness checks and tests of alternative theoretical explanations indicated that our model and findings are robust. From a theoretical perspective, our findings indicate that, due to its empowering and promotion focused orientation, supervisors’ courage to go beyond compliance has relevance for the teamwork and team innovation domains, playing an important moderating role in defining whether quality teamwork leads to enhanced team creativity and team idea implementation. (shrink)

The notion of fitness is usually equated to reproductive success. However, this actualist approach presents some difficulties, mainly the explanatory circularity problem, which have lead philosophers of biology to offer alternative definitions in which fitness and reproductive success are distinguished. In this paper, we argue that none of these alternatives is satisfactory and, inspired by Mumford and Anjum’s dispositional theory of causation, we offer a definition of fitness as a causal dispositional property. We argue that, under this framework, the distinctiveness (...) that biologists usually attribute to fitness—namely, the fact that fitness is something different from both the physical traits of an organism and the number of offspring it leaves—can be explained, and the main problems associated with the concept of fitness can be solved. Firstly, we introduce Mumford and Anjum's dispositional theory of causation and present our definition of fitness as a causal disposition. We explain in detail each of the elements involved in our definition, namely: the relationship between fitness and the functional dispositions that compose it, the emergent character of fitness, and the context-sensitivity of fitness. Finally, we explain how fitness and realized fitness, as well as expected and realized fitness are distinguished in our approach to fitness as a causal disposition. (shrink)

In this book, leading philosophers in the field explore the rich and variable tangles that characterise Wittgensteins Nachlass, as well as their relations to his conception of philosophy"--Provided by publisher.

In the field of cybernetic systems and more specifically in robotics, one of the fundamental objectives is the detection of anomalies in order to minimize loss of time. Following this idea, this paper proposes the implementation of a Hybrid Intelligent System in four steps to impute the missing values, by combining clustering and regression techniques, followed by balancing and classification tasks. This system applies regression models to each one of the clusters built on the instances of data set. Subsequently, a (...) variety of balancing techniques are applied to improve the classifier’s ability to discern whether it is in an error or a normal state. These techniques support to obtain better classification ratios in which a robot is close to error and allow us to bring the behavior back to a normal state. The experimentation is performed using a modern and public data set, which has been extracted from a component-based robotic system, in which different anomalies are induced by software in their components. (shrink)

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As it is well known, mobile phones have become a basic gadget for any individual that usually stores sensitive information. This mainly motivates the increase in the number of attacks aimed at jeopardizing smartphones, being an extreme concern above all on Android OS, which is the most popular platform in the market. Consequently, a strong effort has been devoted for mitigating mentioned incidents in recent years, even though few researchers have addressed the application of visualization techniques for the analysis of (...) malware. Within this field, the present work proposes the extension of a new technique called Hybrid Unsupervised Exploratory Plots to visualize Android malware datasets. More precisely, the novel Beta-Hebbian Learning (BHL) method is applied for the first time and validated under the frame of Hybrid Unsupervised Exploratory Plots, in conjunction with clustering methods. The informative visualization achieved provides a picture of the structure of the malware families, allowing subsequent analysis of their organization. To validate the Hybrid Unsupervised Exploratory Plot extension and its tuning, the popular Android Malware Genome dataset has been used in the experimental setting. Promising results have been obtained, suggesting that BHL applied in combination with clustering techniques in Hybrid Unsupervised Exploratory Plots are a viable resource for the visualization of malware families. (shrink)

Boffa non-well-founded set theory allows for several distinct sets equal to their respective singletons, the so-called ‘Quine atoms’. Rieger contends that this theory cannot be a faithful description of set-theoretic reality. He argues that, even after granting that there are non-well-founded sets, ‘the extensional nature of sets’ precludes numerically distinct Quine atoms. In this paper we uncover important similarities between Rieger’s argument and how non-rigid structures are conceived within mathematical structuralism. This opens the way for an objection against Rieger, whilst (...) affording the theoretical resources for a defence of Boffa set theory as a faithful description of set-theoretic reality. (shrink)

Background: Psychedelics are known for their powerful mental effects due to the activation of 5HT-2A receptors in the brain. During the 1950s and 1960s, research was conducted on these molecules until their criminalization. However, their clinical investigation as therapeutic tools for psychiatric disorders has revived the deontological ethics surrounding this subject. Questions arise as research on their therapeutic outcome becomes a reality. We aim to explore deontological ethics to understand the implications of psychedelics for the clinician, patient, and society. Results: (...) A total of 42 articles were considered for this review. Methods: A methodological search of psychedelic studies from 2017 to 2022 was conducted in PubMed, Scopus, EBSCOhost, and ScienceDirect to address the deontological ethics of clinical psychedelic use. Conclusion: Psychedelics need to be culturally contextualized, epistemic harm minimized and represented to ensure informed consent. Open data and commissions are needed to ensure safe and equal distribution. (shrink)

Soren Kierkegaard's Works of Love, a series of deliberations on the commandment to love one's neighbor, has often been condemned by critics. Here, Ferreira seeks to rehabilitate Works of Love as one of Kierkegaard's most important works. He shows that Kierkegaard's deliberations on love are highly relevant to some important themes in contemporary ethics, including impartiality, duty, equality, mutuality, reciprocity, self-love, sympathy, and sacrifice. Ferreira also argues that Works of Love bears on issues peculiar to a religious ethic, (...) such as the role of God as "middle term," and the possibility of preserving the aesthetic dimensions of love in a religious ethic of relation. (shrink)

Warming up prior to competition is a widely accepted strategy to increase players’ readiness and achieve high performances. However, pre-match routines are commonly based on empirical knowledge and strongly influenced by models emerging from elite team practices. The aim of the present study was to identify and analyze current pre-match warm-up practices in elite futsal. Forty-three elite players were analyzed during their pre-match warm-up routines during the Portuguese Futsal Cup Final 8. Warm-up tasks were classified according to duration, type of (...) activity, sequence, and structure. External load variables included the total distance covered, total distance covered per minute, running distance per minute, sprinting distance per minute, number of accelerations per minute, and number of decelerations per minute. Results highlighted that warm-up routines lasted for 27.5 ± 9.2 min and included nine major different tasks. Open-skill activities were prioritized by coaches; competitive and non-competitive futsal-specific tasks were included in 90% of the total warm-up routines, with higher focus on non-competitive tasks. The intensity progressively increased during warm-ups, mainly because of the higher number of accelerations and decelerations per minute. Pre-match warm-up routines strongly endorse futsal-specific and representative tasks in order to establish pre-match settings able to prepare players for the upcoming game. When designing pre-match warm-up routines, coaches should be aware that duration, sequence, and type of tasks may affect players’ acute performance and readiness. (shrink)

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While the notion of chance has been central in discussions over the probabilistic nature of natural selection and genetic drift, its role in the production of variants on which populational sampling takes place has received much less philosophical attention. This article discusses the concept of chance in evolution in the light of contemporary work in evo-devo. We distinguish different levels at which randomness and chance can be defined in this context, and argue that recent research on variability and evolvability demands (...) a causal understanding of variational probabilities under which development acquires a creative, rather than a constraining role in evolution. We then provide a propensity interpretation of variational probabilities that solves a conceptual confusion between causal properties, variational probabilities and extant variation present in the literature, and explore some metaphysical consequences that follow from our interpretation, specifically with regards to the nature of developmental types. 2.1Mutational randomness 2.2Morphological randomness 2.3Adaptive randomness3Variability and Phenotypic Probabilities 3.1The RNA model as a model for evo-devo4Evolvability and the Probability of Evolving5Variational Propensities in Evo-Devo 5.1Individuating variational propensities 5.2Developmental types6Conclusion. (shrink)

Theistic modal realism argues for an extension of Lewis's modal realism capable of accommodating a theistic God. By affording elegant solutions to many atheistic challenges, the view is of great theoretical utility for the theist. However, it has been objected that within a Lewisian framework God cannot be causally efficacious on pain of collapsing intuitively distinct modal notions. In this article I explain why these worries are ill-founded and show how God's existence and causal power over the pluriverse can be (...) consistently understood. If successful, the proposal offers a congenial theistic way to adopt modal realism and address the atheological problems. (shrink)

This chapter contains sections titled: The Individual in the Period Prior to the Theory of the Will to Power The Individual and Individuality in the Theory of the Will to Power Conclusion.

This paper describes our general framework for the investigation of how human gestures can be used to facilitate the interaction and communication between humans and robots. Two studies were carried out to reveal which “naturally occurring” gestures can be observed in a scenario where users had to explain to a robot how to perform a home task. Both studies followed a within-subjects design: participants had to demonstrate how to lay a table to a robot using two different methods — utilizing (...) only gestures or gestures and speech. The first study enabled the validation of the COGNIRON coding scheme for human gestures in Human–Robot Interaction. Based on the data collected in both studies, an annotated video corpus was produced and characteristics such as frequency and duration of the different gestural classes have been gathered to help capture requirements for the designers of HRI systems. The results from the first study regarding the frequencies of the gestural types suggest an interaction between the order of presentation of the two methods and the actual type of gestures produced. However, the analysis of the speech produced along with the gestures did not reveal differences due to ordering of the experimental conditions. The second study expands the issues addressed by the first study: we aimed at extending the role of the interaction partner by introducing some positive acknowledgement of the participants’ activity. The results show no significant differences in the distribution of gestures between the two explanation methods, in contrast to the previous study. Implications for HRI are discussed focusing on issues relevant for the design of the robot’s communication skills to support the interaction loop with humans in home scenarios. (shrink)

Inserido na colecção Temas de História de Portugal, cujo objectivo, balizado pelos seus coordenadores, Isabel Cluny e Nuno Gonçalo Monteiro, é “colocar à disposição dos leitores interessados textos sintéticos, mas actualizados, sobre grandes temas da História de Portugal”, A Cultura das Luzes em Portugal, Temas e Problemas é um ensaio-síntese da autoria de Ana Cristina Araújo e pretende gizar uma análise interpretativa da permeabilidade do espaço cultural português às novas correntes filosófi...

_ Source: _Page Count 21 A historical sequence is said to be hyperfactual whenever it contains facts that have been proved to exist twice, that is, they exist under two alternative courses of events: the factual and the counterfactual. In such cases, we may verify whether multiple courses of action lead to the same outcome. Drawing upon an idea from Nelson Goodman, each section of this article highlights a different type of hyperfactual sequence: those resulting from the turbulence of historical (...) turning points; those resulting from long term historical sequences; and those resulting from competing courses of action. The final section conveys how hyperfactuals represent the resistance of the multiple layers of history to the formalism of subjunctive conditionals. (shrink)

This book approaches classic epistemological problems from a contextualist perspective. The author takes as his point of departure the fact that we are situated beings, more specifically that every single moment in our lives is already given within the framework of a specific context in the midst of which we understand ourselves and what surrounds us. In the process of his investigation, the author explores, in a fresh way, the works of key thinkers in epistemology. These include Bernard Bolzano, René (...) Descartes, Gottlob Frege, Edmund Husserl, Immanuel Kant and Ludwig Wittgenstein, but also contemporary authors such as Stewart Cohen, Keith DeRose, David Lewis, Duncan Pritchard, Ernest Sosa and Charles Travis. Some of the topics covered are attributions of knowledge, the correspondence theory of truth, objectivity and subjectivity, possible worlds, primary and secondary evidence, scepticism, transcendentalism and relativism. The book also introduces a new contextualist thought-experiment for dealing with moral questions. Contextualism has received a great deal of attention in contemporary epistemology. It has the potential to resolve a number of issues that traditional epistemological approaches cannot address. In particular, a contextualist view opens the way to an understanding of those cognitive processes that require situational information to be fully grasped. However, contextualism poses serious difficulties in regard to epistemic invariance. This book offers readers an innovative approach to some fundamental questions in this field. (shrink)

In this book, experts from the fields of law and philosophy explore the works of Aristotle to illuminate the much-debated and fascinating relationship between emotions and justice. Emotions matter in connection with democracy and equity – they are relevant to the judicial enforcement of rights, legal argumentation, and decision-making processes in legislative bodies and courts. The decisive role that emotions, feelings and passions play in these processes cannot be ignored – not even by those who believe that emotions have no (...) legitimate place in the public sphere. A growing body of literature on these topics recognizes the seminal insights contributed by Aristotle. This book offers a comprehensive analysis of his thinking in this context, as well as proposals for inspiring dialogues between his works and those written by a selection of modern and contemporary thinkers. As such, the book offers a valuable resource for students of law, philosophy, rhetoric, politics, ethics and history, but also for readers interested in the ongoing debate about legal positivism and the relevance of emotions for legal and political life in today’s world. (shrink)

Assuming that Aristotelian ethical thought is specifically related to the problem of stability and permanency of Polis, this paper researches the relationship between the human soul and the ethical-political order. Ethical life is described as an on-going process whereby we learn how to think and desire, due to the experience of each particular situation. Ethics shows the human life as a progressive assimilation of ethical-political order in which one becomes the man one is. But, on the other hand, it also (...) shows that any order owes itself to the character of men who take part in it. Interiorising of customs – the purpose of ethical process of personal constitution – forms the man (character is built from the communitarian experience). The virtuous man’s soul is the strongest guarantee againstruination that always threatens Polis. The affirmation of a good life as a happy life in virtue – as the permanent and stable activity according to virtue – assures political order’s stability and the permanence of the Polis. This leads to a reflection about how much Politics owes Ethics: the possibility of the most esteemed idea in Aristotelian political discourse (the permanence of Polis) depends on the ethical process of human soul’s construction. The soul belongs to the order just as the order belongs to the soul. Seen as a virtue, Justice is a certain configuration of the soul (of desiring, thinking and even of feeling) of a man. The abandonment of that incarnate old conception of Justice is strictly related to the contemporary crisis of Law, whose weaknesses in legitimacy and efficacy are evident. (shrink)

Psychodrama is an effective psychotherapeutic model but interventions with adolescents require age-tailored techniques that maximize engagement and facilitate communication processes. This study describes a novel adaptation of a therapeutic mask technique to psychodrama with adolescents. Over the course of eight group sessions of psychodrama, five adolescents created their own mask and explored its therapeutic use. Their experiences were captured at the end of each session with the Helpful Aspects of Therapy form, and at the end of the study with the (...) Clinical Change Interview. Awareness/insight/self-understanding, empowerment and relief were the most significant aspects experienced by the adolescents, along with perceived increase of calmness and world connection, satisfaction in interpersonal communication and better emotional expression and regulation. The mask technique was experienced as a playful and engaging task that facilitated insight and interpersonal communication. Findings provide preliminary evidence on the clinical utility of mask-based psychodrama with adolescents. (shrink)

The phenomenological reading of psychoanalysis undertook by Michel Henry is surprising in several ways. By inscribing Freud in the philosophical lineage and by affirming that his theses on the unconscious take over (resume), ignoring it, two opposite movements of western metaphysics, Henry intends to show that psychoanalysis has to overcome the primacy of representation in order to get rid of the contradictions that traverse it and that make it a prisoner of a philosophy of consciousness. Without fully rejecting the Freudian (...) theory, the author of the Genealogy of Psychoanalysis reformulates the meaning of the meta-psychological notions according to his theses on the cogito, subjectivity and the auto-affection of the living. In this article we retraced the stakes of this redefinition of drives, affect and the unconscious considering his reflexions on repression. (shrink)

This study aimed to adapt the Santa Clara Strength of Religious Faith Questionnaire -Brief Version to the Portuguese elderly, and to investigate the effect of relevant and easy to assess predictors on the strength of religious faith. Participants were 778 non-institutionalized Catholic elderly, with a majority of women, young-olds, with four years or less of education, and practicing Catholics. The sample was randomly split in two to study the invariance and the structural validity of the SCSRFQ-Brief Version across both groups. (...) Following this step, a multiple indicators and multiple causes model for age, gender, educational level, and religious participation influence on strength of religious faith was tested across groups. All predictors were statistically significant, with religious participation being the most influential. The study of religion in the elderly is enriched by resource to valid multiple-item instruments as the SCSRFQ-Brief Version. (shrink)

This book examines the significantly similar, yet finally different, thinking of two nineteenth-century existentialist thinkers, Soren Kierkegaard and Friedrich Nietzsche. Its focus is on the different ways each envisioned a joyful acceptance of life - a concern they shared. Each strove to give a place to this acceptance in his picture of life, but their conceptions of it are far apart.

Altered attachment characteristics may disturb the HPA and can even cause changes in the hippocampus. However, it is unknown if that will influence spatial navigation performance, learning and recalling. In this study we pretend to verify if there are differences in spatial navigation learning and was associated with attachment style dimensions of anxiety and close-depend. Sixty-five female participants were recruited and were evaluated using the Adult Attachment Scale-R and tested on a virtual maze navigation task (VMT) at one moment (exploratory (...) trial + 3 trials) and 24h later (3 trials). There was a significant Moment x Trial x Close-Depend interaction for the outcome time, F (2, 126) = 3.807, p = 0.025, with post-hoc analysis indicating that the High Close-Depend group displayed significant improvements between Trial 1 and Trial 3 in the post-test assessment. Conversely, the Low Close-Depend group displayed significant improvements between Trial 1and Trial 3 but on the pre-test assessment. Furthermore, the Low Close-Depend group presented significant better performance in pre-test Trial 3 in comparison to the High Close-Depend group. Thereby, it seems that low comfort with proximity and trust in others is associated with reduced spatial navigation recall, although spatial learning performance was actually superior in these participants. It is possible that reduced exposure to social interaction and meaning relationship may be reduced in the Low Close-Depend group, leading to modifications in hippocampal function and, ultimately, reduced spatial recall. Conversely, participants with high comfort with proximity and trust in others may not display typical spatial learning in the proposed task as they are more willing to freely explore the presented environment. (shrink)

Uma das formas de aplicação de penas na Roma Antiga passava pela encenação na arena de narrativas mitológicas, cujos protagonistas – como Ícaro, Dirce, Pasífae, Átis e Hércules – não tinham um final feliz. Essas personagens eram interpretadas por condenados, que desse modo reviviam em tempo real as histórias fatais que por certo proporcionavam espectáculos e experiências marcantes na sociedade romana antiga. Este estudo analisa as fontes que dão conta deste fenómeno sociocultural e propõe uma leitura histórico-sociológica para a compreensão (...) desta vivência colectiva da justiça na Antiguidade Clássica. (shrink)

The connections between Adam Smith and Catholic Social Teaching raise several questions. The principle of subsidiarity adopted in CST, according to which higher associations should not replace subordinate organizations on what the latter can do, seems to be in line with the idea that governmental intervention in the market sphere should be restricted to the minimum required, in line with what is typically seen as Smith’s view. But the principle of the common good would also recommend intervention from political authorities (...) in order to ensure that the common good is achieved. Here I shall argue that this question must be addressed taking into account another principle of CST, the principle of solidarity, and also the basic principle of CST, regarding human dignity. To do so, it is necessary to understand how the various principles of CST spring from the notion of imago Dei in CST, which is behind the notion of human dignity. This leads to a relational conception of human beings which can be fruitfully articulated with Smith’s moral philosophy and political economy. (shrink)

The focus of social simulation on representing the social world calls for an investigation of whether its implementations are inherently value-laden. In this article, I investigate what kind of thing implementation is in social simulation and consider the extent to which it has moral significance. When the purpose of a computational artefact is simulating human institutions, designers with different value judgements may have rational reasons for developing different implementations. I provide three arguments to show that different implementations amount to taking (...) moral stands via the artefact. First, the meaning of a social simulation is not homogeneous among its users, which indicates that simulations have high interpretive malleability. I place malleability as the condition of simulation to be a metaphorical vehicle for representing the social world, allowing for different value judgements about the institutional world that the artefact is expected to simulate. Second, simulating the social world involves distinguishing between malfunction of the artefact and representation gaps, which reflect the role of meaning in simulating the social world and how meaning may or not remain coherent among the models that constitute a single implementation. Third, social simulations are akin to Kroes’ techno-symbolic artefacts, in which the artefact’s effectiveness relative to a purpose hinges not only on the functional effectiveness of the artefact’s structure, but also on the artefact’s meaning. Meaning, not just technical function, makes implementations morally appraisable relative to a purpose. I investigate Schelling’s model of ethnic residential segregation as an example, in which different implementations amount to taking different moral stands via the artefact. (shrink)

The formal and empirical-generative perspectives of computation are demonstrated to be inadequate to secure the goals of simulation in the social sciences. Simulation does not resemble formal demonstrations or generative mechanisms that deductively explain how certain models are sufficient to generate emergent macrostructures of interest. The description of scientific practice implies additional epistemic conceptions of scientific knowledge. Three kinds of knowledge that account for a comprehensive description of the discipline were identified: formal, empirical and intentional knowledge. The use of formal (...) conceptions of computation for describing simulation is refuted; the roles of programming languages according to intentional accounts of computation are identified; and the roles of iconographic programming languages and aesthetic machines in simulation are characterized. The roles that simulation and intentional decision making may be able to play in a participative information society are also discussed. (shrink)

Criticisms of the “container” model of pregnancy picturing female and embryo as separate entities multiply in various philosophical and scientific contexts during the last decades. In this paper, we examine how this model underlies received views of pregnancy in evolutionary biology, in the characterization of the transition from oviparity to viviparity in mammals and in the selectionist explanations of pregnancy as an evolutionary strategy. In contrast, recent evo-devo studies on eutherian reproduction, including the role of inflammation and new maternal cell (...) types, gather evidence in favor of considering pregnancy as an evolved relational novelty. Our thesis is that from this perspective we can identify the emergence of a newhistoricalindividual in evolution. In evo-devo, historical units are conceptualized as evolved entities which fulfill two main criteria, their continuous persistence and their non-exchangeability. As pregnancy can be individuated in this way, we contend that pregnant females are historical individuals. We argue that historical individuality differs from, and coexists with, other views of biological individuality as applied to pregnancy (the physiological, the evolutionary and the ecological one), but brings forward an important new insight which might help dissolve misguided conceptions. (shrink)

The present paper draws a contrast between the notions of τὸ παρ’ ἡμᾶς and τὸ ἐφ’ ἡμῖν to the effect that, according to Chrysippus, each has a different role to play and different requirements to meet, the former being especially tailored to suit the exigencies of praise and blame taken as exhortations, the latter those of desert and justice in praising and blaming as well as honoring and punishing.

Mainstream game theory explains cooperation as the outcome of the interaction of agents who permanently pursue their individual goals. Amartya Sen argues instead that cooperation can only be understood by positing a type of rule-following behaviour that can be out of phase with the pursuit of individual goals, due to the existence of a collective identity. However, Sen does not clarify the ontological preconditions for the type of social behaviour he describes. I will argue that Sen's account of collective identity (...) can be best interpreted in the light of John Searle's notion of collective intentionality, while Sen's explanation of rule-following behavior and agency is best understood using the critical realist transformational model of social activity. (shrink)

Robert Jervis's System Effects was published just as systems thinking began to decline among political scientists, who were adopting increasingly strict standards of causal identification, privileging experimental and large-N studies. Many politically consequential system effects are not amenable to research designs that meet these standards, yet they must nonetheless be studied if the most important questions of international politics are to be answered. For example, if nuclear weapons are considered in light of their effect on the international system as a (...) whole, it becomes clear that they have obviated the need for a global balance of power by allowing states to counterbalance threats by acquiring nuclear weapons rather than investing in massive conventional balancing efforts. Similarly, systems thinking should inform our understanding of the impact of a “unipolar power” such as the United States, which has enjoyed an overwhelming preponderance of conventional military power since the fall of the Berlin Wall. A unipolar power is likely to become involved in frequent conflicts because it is not restrained by the presence of a peer competitor. (shrink)