The main objective of Zika transmission studies is to work out the simplest approach to scale back human mortality and morbidity caused by the disease. Therefore, it is essential to spot the relative importance of the various factors contributing to the transmission and prevalence of the disease. Many mathematical models have been formulated incorporating vector-to-human transmission or human-to-human transmission. However, they do not take into consideration the mixture of both sorts of transmission. It raises the question of the impact of (...) both sorts of transmission on the disease dynamics. We develop a mathematical model of Zika with the vertical transmission in the vector population and human-to-human transmission to answer this question. It includes the immature phase of mosquitoes, adult mosquitoes, and human hosts. Results show that neglecting sexual transmission results in an understatement of the proportion of the infected population. Furthermore, it reduces the speed of disease spreading. On the other hand, vertical transmission in mosquitoes has a negligible effect on the dynamics of disease spread. We perform a sensitivity analysis of the reproductive number R 0 to raise to understand the parameters driving the dynamics of the disease. It appears that the most sensitive parameters in decreasing order are as follows: the adult mosquito death rate, the sting rate, the transmission probability of mosquito to human, and, therefore, the transmission probability of human to mosquito. Furthermore, the proportion at the equilibrium of infected humans is extremely sensitive to the transition rate from the immature vector stage to the adult stage, the human-to-human transmission rate, and, therefore, the human recovery rate. These results confirm that control policies targeting the vector population and, therefore, the recovery rate of people are pretty effective solutions. To validate the model and estimate the important parameters of the model and the prediction of the disease, we consider the real cases in Colombia from 2016. In a series of graphic maps, we presented the comparative study to estimate the disease scenarios and to predict the time limit of the epidemic control measure. (shrink)

Malian farmers’ traditional system for managing seed of sorghum, an indigenous crop of vital importance for food security and survival, can be conceptualized as a commons. Although this system maintains a wide range of varieties and helps ensure access to seed, its ability to create and widely disseminate new varieties to meet evolving opportunities and challenges is limited. A network of farmer groups, public breeding programs, and development organizations collaborating in decentralized creation and dissemination of sorghum varieties in Mali is (...) examined regarding (1) how the network developed and what activities it conducts; (2) the resulting varietal diversity, varietal performance and organizational models; and (3) the elements of the traditional seed system that were maintained, strengthened or transformed. A single-case study approach was used that relies on published literature, official catalogues of released varieties and a database of farmer seed-cooperative requests for foundation seed. The functioning of the network and its varietal-, seed-, and organizational- outcomes are documented and the elements of the traditional sorghum seed system that are maintained or strengthened are analyzed. The evolution of the network’s reliance on commoning as a social process and its strengthening of core Seed Commons features are discussed with a view to the network’s contributions to targeted development outcomes and potential replicability. The case demonstrates how creating a framework for collaboration, enabling actors and organizations to take on collective responsibility while maintaining distributed decision-making at local level, opens opportunities for transforming farming- and food-systems towards sustainability and resilience. (shrink)

Public policies are designed to have an impact on particular societies, yet policy-oriented computer models and simulations often focus more on articulating the policies to be applied than on realistically rendering the cultural dynamics of the target society. This approach can lead to policy assessments that ignore crucial social contextual factors. For example, by leaving out distinctive moral and normative dimensions of cultural contexts in artificial societies, estimations of downstream policy effectiveness fail to account for dynamics that are fundamental in (...) human life and central to many public policy challenges. In this paper, we supply evidence that incorporating morally salient dimensions of a culture is critically important for producing relevant and accurate evaluations of social policy when using multi-agent artificial intelligence models and simulations. (shrink)

"Le concept, principal ressort de l'abstraction philosophique, est aujourd'hui, paradoxalement, inadéquate pour exprimer les arguments philosophiques qui font débat en Afrique noire. Trop aride, trop étroit, trop univoque, le concept réduit ce qui est vécu comme un 'conflit de cultures' à un simple 'conflit intellectuel'. Pour éviter cet appauvrissement, le concept exige le détour par la fiction romanesque. En témoignent deux romans L'aventure ambiguë de Cheikh H. Kane et Entre les eaux de V.Y. Mudimbe. À travers eux, le romancier se (...) fait philosophe, et le philosophe pleinement écrivain. Autant dire que le discours philosophique exige un 'dehors', une extériorité radicale capable de l'éclairer. 'Philosopher en Afrique noire' relève autant du faire voir que du penser, tous deux inséparables l'un de l'autre."--Page 4 de la couverture. (shrink)

Nous invitons ici à une véritable promenade intellectuelle qui nous conduit à creuser l'histoire de la pensée et du penser en Islam pour y retrouver des rationalistes invétérés et endurcis dont le souci fut de défendre la raison au prix de leur foi : ce sont les rationalistes qu'on appelle communément " Mu'tazila ". Très tôt, ce mouvement prit une dimension rationnelle en développant au sein de l'Islam les thèses critiques et philosophiques les plus inattendues d'une religion. Cette histoire des (...) idées que nous voulons parcourir nous mènera au " siècle des lumières en Islam " même si l'expression est quelque peu contestée par certains intellectuels musulmans qui pensent à un manque de considération pour les nouveaux penseurs de l'Islam comme si le moment de la bonne pensée n'est pas le leur. On peut leur donner raison. L'histoire ne bégaie pas toujours. Elle est parfois infidèle. Telle est malheureusement l'histoire de l'Islam. Une histoire d'hybridation et parfois d'infidélité au texte. Apparue comme une religion de salut et de raison, son image est ternie aujourd'hui par ceux qui, au prix du glaive, substituent la modernisation de la pensée islamique à une islamisation violente de la modernité. (shrink)

A travers la vingtaine de textes qui composent cet ouvrage, portant sur des savoirs et des pratiques de l'Afrique noire, l'auteur fonde son analyse sur l'hypothèse suivante : un invariant, plus significatif que tous les autres, occupe le coeur de la pensée africaine. Ce signifié ultime, c'est l'homme. Penser l'humain : la part africaine est une investigation philosophique sur des objets aussi variés que les mythes et les cosmogonies ; la conception et l'organisation de l'espace-temps ; la nature et la (...) fonction du savoir ; l'idéologie et le pouvoir ; le sacré et le profane ; l'idée de nombre et les spéculations sur ses usages. La recherche d'une unité aux discours portant sur ces différents objets trouve sa justification dans un avant-propos intitulé "La part africaine", formulation d'une problématique dont l'auteur s'emploie à dissiper les ambiguïtés et les équivoques pour mieux en souligner l'intérêt. Une manière de rappeler que si la réflexion sur l'homme et sa place dans l'univers peut être considérée comme un trait commun à tous les hommes, de toutes les cultures, cet universel s'incarne dans des profils que sont ses différentes manifestations dans le particulier. Dire de manière quasi obsessionnelle, au détriment d'autres approches du réel, que sans l'homme il n'y a pas de signification du monde, constitue ce qu'Abdoulaye Elimane Kane croit être le fond de la pensée africaine. (shrink)

Le vécu dont je tire ce récit est mon expérience d'homme vivant avec une maladie chronique, l'asthme, dont les périodes alternées, plus ou moins longues, de crise et de rémission me donnèrent envie d'extrapoler sur le thème plus large du plaisir et de la douleur, retenant déjà comme titre provisoire de mon ouvrage Le plaisir et l'ennui, ces deux termes visant une extension de l'analyse au-delà des seules questions de santé et de maladie, incluant par conséquent, leurs équivalents et synonymes (...) dans la vie individuelle et collective. Entre-temps, mes enfants qui n'ont connu que deux de leurs grands-parents, sur le tard, et presque rien de la vie au Fouta alors que nos références familiales et nos évocations quotidiennes en sont remplies ; qui m'ont vu entrer dans la vie active et m'engager politiquement sans en comprendre toujours les tenants et les aboutissants, revinrent plusieurs fois à la charge pour me suggérer d'écrire sur la famille, sur ma petite expérience d'enseignant et d'homme politique, sur les hommes et les femmes qui m'ont marqué et, surtout, sur la place que j'accorde à l'amitié, à la fraternité et à la solidarité, trois notions qu'ils m'ont entendu évoquer souvent et qui, à ce qu'il leur semblait, importent, aujourd'hui, plus aux yeux des jeunes qu'à ceux des adultes. (shrink)

This research investigates the influence that consumers’ perceptions of retail business ethics have on their responses when retailers either create social discount spaces or do not. Using scenarios to imply these social practices and structural equation modeling to test the hypotheses among a sample of 689 respondents, the authors find that consumers’ perceptions of retail business ethics have positive effects on consumer loyalty, both directly and through consumer trust, as well as positive, strong influences on the retailer’s corporate social responsibility (...) and corporate reputation. Furthermore, consumers’ perceptions of retail business ethics exert a stronger effect on consumer trust in integrated social discount spaces, though social discount practices do not affect the link between such perceptions and loyalty. Compared with when the retailer does not offer discount space, collaborative and integrated social discount spaces have weaker effects on trust and loyalty to the retailer. These findings have several notable theoretical and practical implications. (shrink)

This uniquely inspirational and practical book explores human simulation, which is the application of computational modeling and simulation to research subjects in the humanities disciplines. It delves into the fascinating process of collaboration among experts who usually don’t have much to do with one another – computer engineers and humanities scholars – from the perspective of the humanities scholars. It also explains the process of developing models and simulations in these interdisciplinary teams. Each chapter takes the reader on a journey, (...) presenting a specific theory about the human condition, a model of that theory, discussion of its implementation, analysis of its results, and an account of the collaborative experience. Contributing authors with different fields of expertise share how each model was validated, discuss relevant datasets, explain development strategies, and frankly discuss the ups and downs of the process of collaborative development. Readers are given access to the models and will also gain new perspectives from the authors’ findings, experiences, and recommendations. Today we are in the early phases of an information revolution, combining access to vast computing resources, large amounts of human data through social media, and an unprecedented richness of methods and tools to capture, analyze, explore, and test hypotheses and theories of all kinds. Thus, this book’s insights will be valuable not only to students and scholars of humanities subjects, but also to the general reader and researchers from other disciplines who are intrigued by the expansion of the information revolution all the way into the humanities departments of modern universities. (shrink)

Sustainable luxury is a strategic issue for managers and for society, yet it remains poorly understood. This research seeks to clarify how corporate social responsibility actions directly and indirectly affect consumers’ willingness to pay a premium price for luxury brand products, as well as how a long-term orientation might moderate these relationships. A scenario study presents fictional CSR actions of two brands, representing different luxury products, to 1,049 respondents from two countries. The results of a structural equation modeling approach show (...) that the luxury brands’ CSR actions negatively affect customer WTPP overall and for each brand. The luxury brands’ functional and symbolic value dimensions positively mediate the effects of CSR actions on WTPP, whereas social value does not. The effects of CSR actions and brand symbolic value on WTTP do not differ between countries. The effect of functional value on WTPP differs across countries, such that it is stronger for high-LTO than low-LTO cultures. Inversely, the effect of social on customer WTPP is stronger for low-LTO than high-LTO cultures. These findings have theoretical and practical implications for luxury brand managers. (shrink)

Lorsqu’elle nous reçoit à Conakry, en république de Guinée, ce 22 janvier 2002, Mme Kadidiatou Diallo prépare la commémoration de la « journée des pendus » au cours de laquelle, le 25 janvier 1971, de nombreuses personnes furent exécutées par pendaison à travers toute la Guinée, sur ordre du président de la République Ahmed Sékou Touré. Mme Diallo Telli a déjà accordé de nombreux entretiens à des journalistes qui l’ont interrogée sur son époux, Boubacar Diallo Telli, une (...) des plus célèbres per... (shrink)

Dans cette sélection d’extraits d’un interview avec Zsuzsa Laszlo, Dominique Malaquais et Kadiatou Diallo proposent une parole commune autour de SPARCK (Space for Pan-African Research, Creation, and Knowledge), qu’elles ont fondé en 2008. C’est un programme expérimental et multidisciplinaire de résidences d’artistes, d’ateliers, d’expositions, de publications et de performances centré sur des approches novatrices et éthiques d’espaces et de sociétés postcoloniales. Les projets SPARCK prennent pour point de départ les Afriques, pour penser le monde et ses futurs depuis le (...) continent et ses diasporas. (shrink)

This study aims to examine the relationship between national cultural dimensions and the probability of a firm being externally audited. It uses a large set of representative micro-data from nearly 3000 firms across 34 industries in 13 countries in Eastern Europe and the Middle East over the period 2008–2010, and Schwartz’s cultural dimensions, namely autonomy, embeddedness, egalitarianism and hierarchy. The findings show that the relationship between firm audits and cultural autonomy and egalitarianism is strongly positive and statistically significant. Specifically, they (...) show that an increase of one standard deviation in affective autonomy increases the probability that a firm will engage in an external audit by 3.37%. Along the same lines, a 1 SD increase in egalitarianism leads to a 8.36% increase in the likelihood of a firm engaging in an external audit. However, there is no clear evidence that embeddedness and hierarchy play a role in firms’ external auditing trends. These findings remain robust to the use of several confounding factors at the firm and country levels. This research highlights its uniqueness in the choice of national culture as a determinant for the likelihood of external audits. (shrink)

Modeling is as old as humanity. It is one of the ways in which we experience the world, teach our children, and entertain ourselves. The digital computer, on the other hand, is approximately 60 years old but as computing power increases and access to technology becomes easier, more disciplines are using statistical and computational simulations. From the humanities to social sciences, scholars are advocating for a computational branch of their field of study. This is very exciting, and we want to (...) make sure that all disciplines stay connected and share their insights as they grow in their respective areas. Religion is a complex system that consists of humans, society, culture and social constructs that have evolved over millennia. The study of religion relies on empirical approaches to collect and analyze data to generate or validate existing theories. Modeling and simulation allows us to venture beyond statistical observation and into an exploration of the causal relationships between the different aspects of religion. It provides us with the ability to understand the system as a whole, the possibility of projecting how religion will evolve in the future and the capability to compare, contrast and merge seemingly conflicting theories of religion. In this article, we present five critical things that scholars in psychology of religion should know about the discipline of Modeling and Simulation. The goal of this short primer is to highlight the universal aspects of Modeling and Simulation and to provide a unifying view that transcends disciplines. (shrink)

Operating universities under pandemic conditions is a complex undertaking. The Artificial University responds to this need. TAU is a configurable, open-source computer simulation of a university using a contact network based on publicly available information about university classes, residences, and activities. This study evaluates health outcomes for an array of interventions and testing protocols in an artificial university of 6,500 students, faculty, and staff. Findings suggest that physical distancing and centralized contact tracing are most effective at reducing infections, but there (...) is a tipping point for compliance below which physical distancing is less effective. If student compliance is anything short of high, it helps to have separate buildings for quarantining infected students, thereby gracefully increasing compliance. Hybrid in-person and online classes and closing fitness centers do not significantly change cumulative infections but do significantly decrease the number of the infected at any given time, indicating strategies for “flattening the curve” to protect limited resources. Supplementing physical distancing with centralized contact tracing decreases infected individuals by an additional 14%; boosting frequency of testing for student-facing staff yields a further 7% decrease. A trade-off exists between increasing the sheer number of infection tests and targeting testing for key nodes in the contact network. There are significant advantages to getting and acting on test results quickly. The costs and benefits to universities of these findings are discussed. Artificial universities can be an important decision support tool for universities, generating useful policy insights into the challenges of operating universities under pandemic conditions. (shrink)

Religious practices centered on controlled trance states, such as Siberian shamanism or North African zar, are ubiquitous, yet their characteristics vary. In particular, cross-cultural research finds that female-dominated spirit possession cults are common in stratified societies, whereas male-dominated shamanism predominates in structurally flatter cultures. Here, we present an agent-based model that explores factors, including social stratification and psychological dissociation, that may partially account for this pattern. We posit that, in more stratified societies, female agents suffer from higher levels of psychosocial (...) trauma, whereas male agents are more vulnerable in flatter societies. In societies with fewer levels of formal hierarchy, males come into informal social competition more regularly than in stratified contexts. This instability leads to a cultural feedback effect in which dissociative experiences deriving from chronic psychosocial stress become canalized into a male religious trance role. The model reproduces these patterns under plausible parameter configurations. (shrink)

Debates over the causes and consequences of the “Axial Age” – and its relevance for understanding and explaining “modernity” – continue to rage within and across a wide variety of academic disciplines, including anthropology, sociology, archaeology, history, social theory, and cognitive science. We present a computational model that synthesizes three leading theories about the emergence of axial civilizations. Although these theories are often treated as competitors, our computational model shows how their most important conceptual insights and empirically based causal claims (...) can be integrated within a single computational architecture. The plausibility of the latter is supported by the results of our simulation experiments, which were able to simulate the emergence and growth of an axial civilization. The model shows how the relevant theories can be rendered consistent, while challenging the claims of any one to comprehensiveness. (shrink)

Initial responses to questionnaires used to assess participants' understanding of informed consent for malaria vaccine trials conducted in the United States and Mali were tallied. Total scores were analyzed by age, sex, literacy (if known), and location. Ninety-two percent (92%) of answers by United States participants and 85% of answers by Malian participants were correct. Questions more likely to be answered incorrectly in Mali related to risk, and to the type of vaccine. For adult participants, independent predictors of higher scores (...) were younger age and female sex in the United States, and male sex in Mali. Scores in the United States were higher than in Mali (P = 0.005). Despite this difference participants at both sites were well informed overall. Although interpretation must be qualified because questionnaires were not intended as research tools and were not standardized among sites, these results do not support concerns about systematic low understanding among research participants in developing versus developed countries. (shrink)

The social sciences and humanities are fragmented into specialized areas, each with their own parlance and procedures. This hinders information sharing and the growth of a coherent body of knowledge. Modeling and simulation can be the scientific lingua franca, or shared technical language, that can unite, integrate, and relate relevant parts of these diverse disciplines.Models are well established in the scientific community as mediators, contributors, and enablers of scientific knowledge. We propose a potentially revolutionary linkage between social sciences, humanities and (...) computer simulation, forging what we call “human simulation.” We explore three facets of human simulation, namely: the simulation of humans, the design of simulations for human use, and simulations that include humans as well as simulated agents among the actors. We describe the potential of human simulation using several illuminating examples. We also discuss computational, epistemological, and hermeneutical challenges constraining the use of human simulation. (shrink)

Developing countries face numerous barriers to conducting effective and efficient ethics reviews of international collaborative research. In addition to potentially overlooking important scientific and ethical considerations, inadequate or insufficiently trained ethics committees may insist on unwarranted changes to protocols that can impair a study's scientific or ethical validity. Moreover, poorly functioning review systems can impose substantial delays on the commencement of research, which needlessly undermine the development of new interventions for urgent medical needs. In response to these concerns, the Drugs (...) for Neglected Diseases Initiative, an independent nonprofit organization founded by a coalition of public sector and international organizations, developed a mechanism to facilitate more effective and efficient host country ethics review for a study of the use of fexinidazole for the treatment of late stage African Trypanosomiasis. The project involved the implementation of a novel ‘pre-review’ process of ethical oversight, conducted by an ad hoc committee of ethics committee representatives from African and European countries, in collaboration with internationally recognized scientific experts. This article examines the process and outcomes of this collaborative process. (shrink)

The robustness of a system indicates its ability to withstand disturbances while maintaining its properties, performance, and efficiency. There are plenty of studies on the robustness of air transport networks in the literature. However, few works consider its mesoscopic organization. Building on the recently introduced component structure, we explore the impact of targeted attacks on the weighted world air transportation network on its components. Indeed, it contains five local components covering different regions and one global component linking these regions. We (...) investigate targeted attacks based on influential weighted centrality measures. Results show that the local components gradually separate from the world air transportation network as the fraction of removed airports grows. The weighted betweenness attack removes fewer top airports to isolate the regions compared to its alternatives. Furthermore, it is still convenient to travel locally in the separate areas. In contrast, strength and PageRank attacks need to target more airports to split the network. However, they are more disruptive. Indeed, the size of the isolated local components reduces drastically, so it becomes more challenging to travel locally. Looking at the world air transportation network through its component structure reveals a new viewpoint on its resilence. It opens new perspectives to design more efficient attacks. (shrink)

We present a perspective of the national transplant program based on organizational theory and complexity theory, framing the system’s allocation of donor organs as an interorganizational directed multiplex of agents with diverse belief formation in a cooperative-competitive environment. Simulation and analysis of this macroscale complexity may help explain known behavioural variations across member organizations. However, the transplant community still relies on system-scale simulations since effective macroscale methodologies are not well established. Therefore, we offer this perspective of the national transplant program (...) as a means to stimulate new methods that capture macroscale impacts of policy development for deceased donor organ allocation. (shrink)

Ambiguous Adventure, one of the most iconic novels in Senegalese history, recounts the plight of a traditional African society in the face of an encroaching western modernity, with its main character, Samba Diallo, as the face of this momentous struggle. The captivating story inspired numerous critiques that address the text from sociological, religious, and philosophical perspectives. Not surprisingly, most of the interpretations are based on the textual connection to Islam, the religion embraced and practiced by the Diallobé community in (...) the novel, and deal with universal topics such as death, identity, colonialism, initiation, tradition, and modernity. Building on the work done before me on Samba’s own search for identity within the Muslim context, I look to pre-Islamic Fulani traditions articulated by Amadou Hampaté Bâ, which better illuminate the process of initiation that leads the human being to transform into a self-realized person. I argue, based on this Fulani metaphysical context, that from the very beginning, Samba Diallo’s journey is initiatic in itself, in the traditional Fulani conception of the term, one that is connected to the sacred dimension. In this sense, the Fulani indigenous traditions anticipate Samba’s journey toward a sacred identity, highlight a clear roadmap to that very process, and, contrary to many critics, lead the initiate to success. (shrink)

L'idée centrale est simple : l'éducation est la voie incontournable pour réaliser le type d'homme équilibré qu'une société se donne comme idéal. Ce fil directeur que Iba fall tient fermement tout au long de ce plaidoyer pour un monde davantage ancré dans les valeurs humanistes, explore différents aspects d'une crise à la fois d'identité et de civilisation. Il y a crise, selon le jeune professeur de philosophie, parce qu'il y a rencontre, choc et parfois contradiction entre deux modèles d'éducation. Celui (...) qui est porté par la mondialisation a des tendances dissolvantes pour celui engendré jadis par l'éducation traditionnelle africaine. D'où le sens du titre : " Crise de la socialisation au Sénégal ". S'agit-il d'un procès de la mondialisation? En un certain sens, oui cela en est un. Toutefois l'argumentaire donne à voir une lecture moins négative de ce changement d'échelle qui tend à affecter toute chose. Ce dont il est question, c'est la mise à l'épreuve des valeurs traditionnelles de l'éducation dans le contexte d'une mondialisation en cours. Très exactement, ce qui est en cause, c'est la volonté d'exportation ou de transfert des tendances chosifiantes de la globalisation économique et matérielle dans un domaine dont le propre est d'être immatériel et de se nourrir de valeurs qui se donnent l'homme comme fin et non comme moyen. Abdoulaye Elimane Kane. (shrink)

From the contents: Culture, nationalism and philosophy (Sophie B. Oluwole).- The relationship between African and European philosophers: what it ought to be (Juergen Hengelbrock).- Against culture and the aliens of modernization: the case of Africa (Christian Neugebauer).- Elements democratiques dans les sagesses du Senegal (Massaer Diallo).- Democracy in an ethical community (Tobias J.G. Louw).

In this paper, we analyze the recent public scandal involving Nafissatou Diallo and Dominique Strauss-Kahn to offer an account of the role affectability imbalances play in process-based invisibility. Process-based invisibilities, in this paper, refer to predictable narrative gaps within public narratives that can be aptly described as disappearances. We demonstrate that compromised, complex social identities, maladjusted webs of reciprocity, and a failure to fully appreciate basic affectability in large part cause affectability imbalances. Ultimately, we claim that affectability imbalances and (...) the three imbricated conditions that facilitate such imbalances—complex social identities, reciprocity, and basic affectability—are integral features of process-based invisibility. (shrink)