Following on from ecological theories of perception, such as the one proposed by [Gibson, J. J. . The senses considered as perceptual systems. Boston: Houghton Mifflin] this paper reviews the literature on the multisensory interactions underlying the perception of flavor in order to determine the extent to which it is really appropriate to consider flavor perception as a distinct perceptual system. We propose that the multisensory perception of flavor may be indicative of the fact that the taxonomy currently used to (...) define our senses is simply not appropriate. According to the view outlined here, the act of eating allows the different qualities of foodstuffs to be combined into unified percepts; and flavor can be used as a term to describe the combination of tastes, smells, trigeminal, and tactile sensations as well as the visual and auditory cues, that we perceive when tasting food. (shrink)

The aim of this paper is to point out the equivalence between three notions respectively issued from recursion theory, computational complexity and finite model theory. One the one hand, the rudimentary languages are known to be characterized by the linear hierarchy. On the other hand, this complexity class can be proved to correspond to monadic second‐order logic with addition. Our viewpoint sheds some new light on the close connection between these domains: We bring together the two extremal notions by providing (...) a direct logical characterization of rudimentary languages and a representation result of second‐order logic into these languages. We use natural arithmetical tools, and our proofs contain no ingredient from computational complexity. (shrink)

Priya’s situation highlights several important ethical issues in the field of global health work. These can be categorized as issues relevant to her predeparture motivations and preparation, her role as a Western professional working in the Democratic Republic of the Congo , and her responsibilities once she returns home, having engaged in a project “in the field.”To consider the ethical issues inherent in global health work, individuals must ask themselves several critical questions . These include questions of motivation: “Why am (...) I doing this work? What do I hope to gain? What are my personal objectives?” . Answering these questions may be an uncomfortable exercise as one realizes that his or her motivations are not as purely altruistic as originally imagined . In Priya’s case, her interests and training suggest a longstanding commitment, but she must be honest with herself in her use of this internship to “build he .. (shrink)

Sensory substitution devices provide through an unusual sensory modality (the substituting modality, e.g., audition) access to features of the world that are normally accessed through another sensory modality (the substituted modality, e.g., vision). In this article, we address the question of which sensory modality the acquired perception belongs to. We have recourse to the four traditional criteria that have been used to define sensory modalities: sensory organ, stimuli, properties, and qualitative experience (Grice, 1962), to which we have added the criteria (...) of behavioral equivalence (Morgan, 1977), dedication (Keeley, 2002), and sensorimotor equivalence (O’Regan & Noe¨, 2001). We discuss which of them are fulfilled by perception through sensory substitution devices and whether this favors the view that perception belongs to the substituting or to the substituted modality. Though the application of a number of criteria might be taken to point to the conclusion that perception with a sensory substitution device belongs to the substituted modality, we argue that the evidence leads to an alternative view on sensory substitution. According to this view, the experience after sensory substitution is a transformation, extension, or augmentation of our perceptual capacities, rather than being something equivalent or reducible to an already existing sensory modality. We develop this view by comparing sensory substitution devices to other ‘‘mind-enhancing tools’’ such as pen and paper, sketchpads, or calculators. An analysis of sensory substitution in terms of mind-enhancing tools unveils it as a thoroughly transforming perceptual experience and as giving rise to a novel form of perceptual interaction with the environment. (shrink)

For decades, the dominant research paradigm has included trials conducted in clinical settings with little involvement from communities. The move toward community engaged research (CEnR) necessitates the inclusion of diverse perspectives to address complex problems. Using a relationship paradigm, CEnR reframes the context, considerations, practical steps, and outcomes of research.

For decades, the dominant research paradigm has included trials conducted in clinical settings with little involvement from communities. However, concerns about the relevance and applicability of the processes or outcomes of such research have led to calls for greater community engagement in the research process. As such, there has been a shift in emphasis from simply recruiting research participants from community settings to engaging community members more broadly in all aspects of the research process. The move toward community engaged research (...) is in part driven by the recognition that inclusion of diverse perspectives in multidisciplinary teams is essential to addressing complex problems. Investigators have come to recognize the inherent value of engaging community members as collaborators in multidisciplinary teams that are conducting research on issues of concern to communities. The insider perspective from community members is now recognized as essential in designing effective and well-received recruitment strategies, culturally appropriate measures, and identifying meaningful and broad-reaching venues for dissemination. (shrink)

This article takes up the concept of montage that has defined scholarship on Alfred Döblin’s Berlin Alexanderplatz: Die Geschichte von Franz Biberkopf since its publication. Against interpretations that understand the novel’s technique of montage as related to film and the avant-garde, I show that the novel is more strongly tied to paper objects and practices, above all the nineteenth-century serial novel and its medial environment in the newspaper. Approaching the novel from this perspective directs attention – in opposition to the (...) scholarship that has emphasized the experience of disruption produced by montage – to the significance of the plot and its highly gendered violence.ZusammenfassungSeit seiner Erstveröffentlichung wird Alfred Döblins Berlin Alexanderplatz: Die Geschichte von Franz Biberkopf durchweg unter dem Begriff der Montage verhandelt. Entgegen dieser Lektüre, die die Ästhetik des Montageschnitts mit Praktiken des Films und der Avantgarde verbindet, zeige ich, dass der Roman in einer Geschichte von Papierobjekten und Papierpraktiken zu verorten ist, zu der vor allem der Feuilletonroman des 19. Jahrhunderts mitsamt dessen medialem Umfeld gehört. Im Gegensatz zum Forschungskonsens, der die Erfahrung der Diskontinuität hervorhebt, lenkt eine Annäherung an den Roman aus der Perspektive von Papierpraktiken unsere Aufmerksamkeit auf die Bedeutung der Romanhandlung und die genderspezifische Gewalt, die sie kennzeichnet. (shrink)

Epistemic Freedom in Africa is about the struggle for African people to think, theorize, interpret the world and write from where they are located, unencumbered by Eurocentrism. The imperial denial of common humanity to some human beings meant that in turn their knowledges and experiences lost their value, their epistemic virtue. Now, in the twenty-first century, descendants of enslaved, displaced, colonized, and racialized peoples have entered academies across the world, proclaiming loudly that they are human beings, their lives matter and (...) they were born into valid and legitimate knowledge systems that are capable of helping humanity to transcend the current epistemic and systemic crises. Together, they are engaging in diverse struggles for cognitive justice, fighting against the epistemic line which haunts the twenty-first century. The renowned historian and decolonial theorist Sabelo J. Ndlovu-Gatsheni offers a penetrating and well-argued case for centering Africa as a legitimate historical unit of analysis and epistemic site from which to interpret the world, whilst simultaneously making an equally strong argument for globalizing knowledge from Africa so as to attain ecologies of knowledges. This is a dual process of both deprovincializing Africa, and in turn provincializing Europe. The book highlights how the mental universe of Africa was invaded and colonized, the long-standing struggles for 'an African university', and the trajectories of contemporary decolonial movements such as Rhodes Must Fall and Fees Must Fall in South Africa. This landmark work underscores the fact that only once the problem of epistemic freedom has been addressed can Africa achieve political, cultural, economic and other freedoms. This groundbreaking new book is accessible to students and scholars across Education, History, Philosophy, Ethics, African Studies, Development Studies, Politics, International Relations, Sociology, Postcolonial Studies and the emerging field of Decolonial Studies. (shrink)

This paper examines heterogeneous impacts of gendered household headship and control of resources on food security in rural Tanzania. Analysis with minimal attention to heterogeneity in gender considerations indicates no differences in household food security between male and female-headed households. But with a more differentiated household headship variable and accounting for gendered differences in resource ownership, the results differ markedly. Using more gender-disaggregated variables, our results show significant differences between female-headed and male-headed households. In these results we find support for (...) the claim that gender norms in the study villages often restrict women’s access to resources, resulting in more vulnerable female-headed households. Female-headed households with no male adults present are particularly vulnerable. The study also points to specific opportunities for enhanced food security with attention to female and joint ownership of livestock. These results represent a hopeful sign that efforts to enhance female livestock ownership could be a useful strategy to address lower levels of food consumption in these Tanzanian villages. (shrink)

What if a blind person could 'see' with her ears? Thanks to Sensory Substitution Devices (SSDs), blind people now have access to out-of-reach objects, a privilege reserved so far for the sighted. In this paper, we show that the philosophical debates have fundamentally been mislead to think that SSDs should be fitted among the existing senses or that they constitute a new sense. Contrary to the existing assumption that they get integrated at the sensory level, we present a new thesis (...) according to which they are not sensory, and get vertically integrated on the top of existing sensory abilities, from which they should be theoretically distinguished. (shrink)

The purpose of this paper is to critically analyse and discuss the views of constructivism, on the teaching and learning of mathematics. I provide a background to the learning of mathematics as constructing and reconstructing knowledge in the form of new conceptual networks; the nature, role and possibilities of constructivism as a learning theoretical framework in Mathematics Education. I look at the major criticisms and conclude that it passes the test of a learning theoretical framework but there is still a (...) gap between theory and mathematics classroom practice. (shrink)

Ash's functions Nσ ,k count the number of k -equivalence classes of σ -structures of size n . Some conditions on their asymptotic behavior imply the long standing spectrum conjecture. We present a new condition which is equivalent to this conjecture and we discriminate some easy and difficult particular cases.

ABSTRACT Some scholars tend to argue that Black marginality is due largely to the exclusion of Blacks from meaningful economic participation as well as generalized social exclusions. This, owing to the division of the world’s populations along a racial hierarchy on the one hand, and in geopolitical terms along the dichotomy of Metropoles and dependencies. While there have been some cosmetic changes, particularly in relation to the complexion of the ruling personnel in the aftermath of Independence, the view adopted here (...) is that the colonial structure remains largely intact. This is because the material base of colonial countries or regions remains fundamentally predisposed toward satisfying the economic interest of industrialized Western powers, the former colonizers. The argument advanced here therefore, is that such marginality is due not from exclusions per se but rather from inclusion albeit only as junior, and therefore inferior, partners. So at the root of the problem is the problem of “white supremacy,” which establishes and maintains asymmetrical relations between the races. This system underlies as it underpins the standard contract and thus functions as a clandestine and unofficial political system. The article thus delves into the social contract theory, particularly the works of Charles Mills and Jean-Jacques Rousseau, with the view of ascertaining how their ideas help us understand the modern world in terms of race relations. Furthermore, Walter Rodney’s concept of “white power” is appropriated as it provides a useful framework within which to understand the white power complex. (shrink)

La question posée dans cet article concerne les conduites de l’agir de certaines adolescentes dans le champ de la protection de l’enfance. Ces adolescentes sont accueillies dans des microstructures, unités de vie à effectif réduit, après un long parcours discontinu et jalonné d’accueils en foyers et/ou en familles d’accueil. Elles se sont construites sur la base de graves défaillances de la relation aux objets primaires et des effets dévastateurs de la multiplicité des lieux de placement. Les auteurs, psychologues cliniciennes impliquées (...) dans le secteur de l’enfance, observent leurs passages à l’acte en lien avec la dimension fondatrice et tragique de l’oralité dans sa contradiction amour/haine, afin de penser la clinique du sujet et de proposer des soins articulant soin individuel et accompagnement à la réaffiliation familiale et culturelle. (shrink)

This Special Issue comes at a time when African countries and the Global South in general are facing unprecedented crises in securing energy to power their economies. The crises are necessitated largely by the developed Western countries exerting enormous power and pressure upon the developing world to move away from fossil fuels, while at the same time the West is increasing its uptake on fossils. However, with critical self-reflection we are able to understand that a crisis of this nature is (...) not without historical precedence, as it is preceded by a series of other forms of injustices meted out upon the formerly and still colonized peoples. And not long ago, the COVID-19 pandemic on the health front, and the handling thereof, showed just how skewed and divided the world still is and laid bare race-laden inequalities both at local and global levels. So to be sure, the current crises are part of the history of struggle against race-based social injustices and demonstrate Western desire to continue its stranglehold over its former colonies. And although the energy transition is dubbed the “Just Energy Transition,” for those in the developing world who are negatively affected, there is clearly nothing “Just” about it. So whereas we generally tend to speak of social or historical injustices such as the energy crises and COVID-19, at an epistemological front we find cognitive injustice. Accordingly, the articles in this issue contribute to a series of responses by the anticolonial movement (broadly defined) in relation to injustice, particularly its epistemological ramifications on knowledge and knowledge production in the relation between the colonizer and the colonized, the center and the periphery. Furthermore, the historical exclusion of African and other non-European peoples from participation in reason had the effect that Africans in particular were precluded from philosophy itself, a phenomenon that African philosophy and associated disciplines are today still grappling with in the academy. So in a word, the articles make an important contribution insofar as reckoning with the impact that race and the history of racism has had in philosophy in particular, both as a discipline and as a human mental activity.It should be remembered that the exclusion of Africans from reason and eventually from philosophy is preceded by an earlier one, the exclusion of Africans from recognition at a human level, qua rational beings. One can talk of a history of depersonalizations and dehumanizations; of massacres and deracination inflicted upon the oppressed owing to the colonial encounter. This is why for a scholar and a philosopher of the periphery, to use Enrique Dussel’s term, philosophical inquiry cannot and ought not be divorced from human reality. In fact, scholars of the periphery often stress the need for philosophy not to abstract too much from reality; and for philosophy to confine itself with liberatory human ends, among other things. There are a number of thinkers of the periphery who famously harp upon this point. For instance, Lewis Gordon has introduced the concept of “disciplinary decadence” by which he laments the fetishization of methods and whereby disciplines become an end in themselves, thus not necessarily serving human needs. Other thinkers in this school of thought include the likes of Enrique Dussel, Charles Mills, Cornel West, Angela Davis, and George Yancy to mention but a few. Yancy speaks of the “Density project” with which he has a normative injunction upon Black philosophers. In a similar vein, Dussel remarks in the Philosophy of Liberation that “Philosophy, when it is really philosophy and not sophistry or ideology, does not ponder philosophy. It does not ponder philosophical texts, except as a pedagogical propaedeutic to provide itself with interpretive categories. Philosophy ponders the nonphilosophical; the reality.”1 This reality, as is averred, is in existential phenomenology, not merely objective reality or perhaps something out there existing on its own accord, but rather it is what Jean-Paul Sartre associates with “human reality,” which is reality as lived by people of flesh and blood. So in a world demarcated between center and periphery, human beings and subhumans, whites and Blacks, the anticolonial thinker cannot afford not to raise questions relating to social existence, “the reality.” Thus for those in the academy, one must be able to come to terms with the reality of non-Western and “non-scientific knowledges” (after Boaventura De Sousa Santos) not being recognized as credible knowledge, coupled with the possibility of being forgotten, of being completely wiped out from history. And, as we see with Bernard Matolino’s article in particular, this is the battle that African philosophy has vigorously had to deal with in the previous two or three decades.In the Western canon, philosophy is generally taken to begin with the Greeks and this, as is observed, is no historical accident but forms part of a project to relegate previous philosophical traditions to relative obscurity, and to preclude the rest of humanity from participation in reason. The idea is that for Western modernity to be a viable project, oppressed cultures must out of necessity be denied reason. On this very point, Frantz Fanon would remark in Black Skin White Masks in the following manner: “That victory [on the rational front] played cat and mouse; it made a fool of me. As the other put it, when I was present, it was not; when it was there, I was no longer.”2 In this regard Mogobe Ramose’s article notes how the Aristotlean concept of man as a rational animal becomes a misnomer insofar as this relates to the Black person. With this sleight of hand, previous civilizations such as the African (Egyptian) and Arab traditions in philosophy are supposed to vanish from history and from the epistemological landscape. In this regard, Mills’s insights will continue to haunt philosophy well into the future, long after his passing. Mills had noted that a typical philosophy program in the Westernized university will normally start off with the two Greek philosophers, namely Plato and Aristotle. From here it moves to cover the Middle Ages and probably end with theories on liberalism. And although this period covers a history of more than two thousand years of Western philosophy, there will be little or no mention of traditions that shaped philosophical thought prior to the Greeks.The above notwithstanding, the articles in this issue show, however, that not only are Africans and oppressed peoples endowed with reflective reason, but that they also possess a unique brand of philosophy. By and large, the articles not only affirm the epistemological standpoint of African philosophy but show its own genealogy, discourse, and objectives among other things.With these short remarks, the following articles cut across these thematic areas: metaphysics of race, epistemic racism, racial ontology, feminism, and decolonial literature. Accordingly, the article by Bernard Matolino begins by delving into the metaphysics of race and notes that while there is no proof that there are distinct races (after Kwame Appiah), race as a matter of social life is alive and relevant. Further, his article goes on to demonstrate how African philosophy emerged as a form of protest and native philosophers’ need to show that indigenous peoples always had a philosophy. In a similar vein, Edwin Etieyibo’s article discusses epistemic racism, and how color prejudice historically translated to other forms of racial injustices such as epistemic racism. His article makes use of the works of such thinkers as Anibal Quijano and Ramon Grosfoguel to trace the genealogy of such injustices in the modern period.Siphiwe Ndlovu’s article looks into the problem of Black marginality, particularly in the modern period. He locates his musings within the social contract tradition but suggests a reading of contemporary marginality through the lens of Mills’s racial contract. Accordingly, instead of seeing Black marginality as a function of exclusion or being cast outside the contract, the article argues that such marginality is due not from exclusions per se but rather from inclusion albeit only as junior—and therefore inferior—partners in the racial contract.Mogobe Ramose’s article begins by endorsing Kwasi Wiredu’s view that there is nothing wrong with African philosophy being preoccupied with questions that are not exactly identical to those of non-African philosophies. Furthermore, his article traces, through D. M. Goldenberg, the roots of anti-Black racism from “colour symbolism” among the Arabs in the classical world, through the Rabbinic era, and later taking the form of race prejudice in Christianity. At the crux of his article is the argument that the prevailing practice of fragmenting the human race into multiple bits and pieces is against the pursuit of justice and peace in human relations.The article by Zinhle ka’Nobuhlaluse considers Anika Mann’s arguments on race and feminist standpoint as an existential standpoint and foundation. She takes up Mamphela Ramphele’s initial autobiography, Mamphela Ramphele: A Life, to critically reflect on what the actions of “non-subservient Blackwomen” reveal about the lived experience of being Black and a woman under Apartheid South Africa.The article by Siseko Kumalo infuses decolonial and literary criticism as projects that may allow for a recognition of the “ontological legitimacy” of amaqaba (those who rejected colonial influences and education). Through a close reading of S. E. K. Mqhayi’s Intshayelelo: Imbali, the article engages with the question How does a model of inclusive national identity in South Africa, once established, get us to the point of recognition for the Indigene? (shrink)

In my examination of Ahmadou Kourouma's satirical 'historiographic metafiction' Waiting for the Wild Beasts to Vote [1998] , I argue that this narrative shows that in postcolonial Africa freedom from colonial rule has resulted neither in privilege nor power for the majority of African citizens. In the novel, Kourouma employs but also subverts the style of donsomana or praise poetry in his satirisation of postcolonial African ways of wielding political power. Largely narrated by Bingo, a satirical griot, the novel adopts (...) a mock-epic mode as a way of acknowledging but also subverting both traditional African and European modernistic conceptualisations of the historical and literary. Among other things, the title of the novel satirises the inadequacy of electoral processes imposed by the Western nations to bring about smooth power transitions and genuine freedoms to the African populace. The novel's title also mocks African rulers for undermining democracy and those who are ruled for their inability to seize the voting opportunities, which in the novel are sometimes presented as moments of genuine civil power, to rid themselves of the emasculating dictators. (shrink)

La question posée dans cet article concerne les conduites de l’agir de certaines adolescentes dans le champ de la protection de l’enfance. Ces adolescentes sont accueillies dans des microstructures, unités de vie à effectif réduit, après un long parcours discontinu et jalonné d’accueils en foyers et/ou en familles d’accueil. Elles se sont construites sur la base de graves défaillances de la relation aux objets primaires et des effets dévastateurs de la multiplicité des lieux de placement. Les auteurs, psychologues cliniciennes impliquées (...) dans le secteur de l’enfance, observent leurs passages à l’acte en lien avec la dimension fondatrice et tragique de l’oralité dans sa contradiction amour/haine, afin de penser la clinique du sujet et de proposer des soins articulant soin individuel et accompagnement à la réaffiliation familiale et culturelle. (shrink)

The Business Roundtable's “Purpose of a Corporation” letter announced a shift from stockholder primacy to stakeholder primacy. Interestingly, we contend the letter's language employed a technical efficiency emphasis, suggesting a firm's executives chose to make this shift because they believed doing so would improve the firm's financial performance, via improved corporate governance. We examine whether investors actually accepted the technical efficiency arguments at face value, or in contrast believed the announcements were merely a “rational myth,” what management thought investors would (...) want to hear. We employ a 2-day cumulative abnormal return (CAR) event study for 140 publicly-held firms. Overall, we find investor support for the announcement. In addition, we found how returns to firms with prior similar announcements were negative at the time of the announcement. Also, the returns for firms having multiple signatories were positive and significant. (shrink)

Entre 1962 et 1984, 2 015 enfants réunionnais, dits « de la Creuse », ont été séparés de leurs parents et de leur île. Ils ont été placés dans des structures à La Réunion avant d’être exilés en métropole, dont un certain nombre dans la Creuse. À partir d’une recherche approfondie faisant suite à une première étude exploratoire, les auteures montrent qu’une quête de leur histoire d’enfant s’est imposée à eux à un moment de leur parcours d’adultes. La découverte tardive (...) de leur histoire lacunaire, via leur dossier d’archives de l’ ase, provoque un effet indéniable sur chacun et leur vie prend une autre tournure. Ce dossier devient un témoin clé de fragments douloureux de leur histoire. L’accompagnement d’une adulte à la consultation de son dossier d’archives témoigne de l’indispensable nécessité d’une aide « psycho-historique ». Par un effet loupe, ces découvertes articulées à la notion « d’axe narratif de filiation » (Golse, Moro) aident à penser cet accompagnement comme pouvant être appliqué à tous les enfants placés. (shrink)

Die Bildtheorie hat sich jüngst dem Begriff der Form zugewandt. Der interdisziplinäre Band verfolgt das Ziel, den vielfältigen Zusammenhängen von Form und Bild nachzugehen und ihre historischen, theoretischen und methodischen Voraussetzungen zu beleuchten. Das semantische Feld von Formbildung und Formbegriff umreisst einen Gegenstandsbereich, der eine doppelte Herangehensweise nahelegt: eine Untersuchung der theoretischen Implikationen von Formbegriffen der Moderne einerseits und eine historische Analyse spezifischer künstlerischer Positionen andererseits. Hat doch die Bildung konkreter Formen Auswirkungen auf deren begriffliche Reflexion. Der Terminus 'Form' bedeutet (...) ebenso emphatisch Grundform, auf das Wesentliche reduzierte Form, wie er die konkrete anschauliche Form in ihrer Gewordenheit, sinnlichen Fülle und Einbettung in kulturelle und kommunikative Zusammenhänge meint. (shrink)

Dans l’objectif d’observer et d’analyser les capacités d’argumentation de jeunes enfants, nous avons mis en place dans les classes des débats ouverts à visée philosophique à partir d’images. Les enfants passent par trois phases : la description de l’image qui consiste à en décrypter le message littéral, l’interprétation du message symbolique et la discussion qui aboutit à la construction collective d’un concept philosophique dont l’image est chargée métaphoriquement. En observant les compétences de problématisation et de conceptualisation des élèves, notre but (...) dans cette étude est de montrer comment les enfants de 5 à 11 ans accèdent à une forme d’implicite sous-jacent à l’image en passant par la métaphore. En nous appuyant sur un corpus recueilli dans 14 classes de différents niveaux scolaires, nous avons identifié dans les interactions des enfants les moments langagiers qui pointent le passage progressif de l’explicite vers l’implicite et dans lequel la production de la métaphore manifeste le cheminement le plus abouti vers le concept philosophique. (shrink)

Les jeunes « radicalisés » sont confrontés à des mouvements de questionnements internes et externes, comme grand nombre d’adolescents, sur leur filiation, leur identité. Leur engagement dans cet horizon guerrier s’inscrit autour de menaces psychiques inexorables face à des impensés dans leur histoire individuelle et collective. Appuyé par une méthodologie complémentariste, l’article analyse la situation de deux jeunes hommes confrontés à des reviviscences traumatiques de non-dits familiaux et la réactivation de mouvements internes et externes non maîtrisables. Malgré la tentative de (...) maîtriser ces menaces, la radicalité semble renvoyer à une violence sociale et politique menaçante. (shrink)

The Search for the Legacy of the USPHS Syphilis Study at Tuskegee is a collection of essays from experts in a variety of fields seeking to redefine the legacy of the infamous Tuskegee Syphilis Study. The essayists place the legacy of the study within the evolution of racial and ethnic relations in the United States. Contributors include two leading historians on the study, two former United States Surgeons General, and other prominent scholars from a wide range of fields.

In 1952, Heinrich Scholz published a question in The Journal of Symbolic Logic asking for a characterization of spectra, i.e., sets of natural numbers that are the cardinalities of finite models of first order sentences. Günter Asser in turn asked whether the complement of a spectrum is always a spectrum. These innocent questions turned out to be seminal for the development of finite model theory and descriptive complexity. In this paper we survey developments over the last 50-odd years pertaining to (...) the spectrum problem. Our presentation follows conceptual developments rather than the chronological order. Originally a number theoretic problem, it has been approached by means of recursion theory, resource bounded complexity theory, classification by complexity of the defining sentences, and finally by means of structural graph theory. Although Scholz' question was answered in various ways, Asser's question remains open. (shrink)

Policy Interaction Graph Analysis is a Host-based Intrusion Detection tool that uses Linux MAC Mandatory access control policy to build the licit information flow graph and uses a detection policy defined by the administrator to extract illicit behaviour from the graph. The main limitation of this tool is the generation of a huge signature base of illicit behaviours; hence, this leads to the use of huge memory space to store it. Our primary goal in this article is to reduce this (...) memory space while keeping the tool’s efficiency in terms of intrusion detection rate and false generated alarms. First, the interactions between the two nodes of the graph were grouped into a single interaction. The notion of equivalence class was used to classify the paths in the graph and was compressed by using a genetic algorithm. Such an approach showed its efficiency compared to the approach proposed by Pierre Clairet, by which the detection rate obtained was 99.9%, and no false-positive with a compression rate of illicit behaviour signature database reached 99.44%. Having these results is one of the critical aspects of realizing successful host-based intrusion detection systems. (shrink)

Is the societal-level of analysis sufficient today to understand the values of those in the global workforce? Or are individual-level analyses more appropriate for assessing the influence of values on ethical behaviors across country workforces? Using multi-level analyses for a 48-society sample, we test the utility of both the societal-level and individual-level dimensions of collectivism and individualism values for predicting ethical behaviors of business professionals. Our values-based behavioral analysis indicates that values at the individual-level make a more significant contribution to (...) explaining variance in ethical behaviors than do values at the societal-level. Implicitly, our findings question the soundness of using societal-level values measures. Implications for international business research are discussed. (shrink)

This article provides current Schwartz Values Survey (SVS) data from samples of business managers and professionals across 50 societies that are culturally and socioeconomically diverse. We report the society scores for SVS values dimensions for both individual- and societal-level analyses. At the individual-level, we report on the ten circumplex values sub-dimensions and two sets of values dimensions (collectivism and individualism; openness to change, conservation, self-enhancement, and self-transcendence). At the societal-level, we report on the values dimensions of embeddedness, hierarchy, mastery, affective (...) autonomy, intellectual autonomy, egalitarianism, and harmony. For each society, we report the Cronbach’s α statistics for each values dimension scale to assess their internal consistency (reliability) as well as report interrater agreement (IRA) analyses to assess the acceptability of using aggregated individual level values scores to represent country values. We also examined whether societal development level is related to systematic variation in the measurement and importance of values. Thus, the contributions of our evaluation of the SVS values dimensions are two-fold. First, we identify the SVS dimensions that have cross-culturally internally reliable structures and within-society agreement for business professionals. Second, we report the society cultural values scores developed from the twenty-first century data that can be used as macro-level predictors in multilevel and single-level international business research. (shrink)

Après s'être intéressée aux rapports de la linguistique avec la société en 2003. avec les sciences de l'homme en 2005, avec les demandes sociales en 2007, avec les nouvelles technologies en 2009, l'Association des Sciences du Langage a souhaité. pour l'édition 2011 de son colloque biennal, élargir géographiquement la réflexion en invitant des chercheurs d'autres pays d'Europe. Ce recueil rend ainsi compte. en douze articles et en langue française, de travaux portant sur le français, l'allemand, le grec, le tchèque. le (...) roumain et le finnois. centrés sur la grammaire, l'analyse de discours, les rapports entre langue et culture et le multilinguisme. L'ouvrage permet au lecteur de prendre connaissance de ce qui se fait ailleurs en matière de recherche et d'enseignement universitaires dans le domaine des sciences du langage, en relation ou non avec ce qui se fait en France. (shrink)