44 research outputs found

    Employee Work Ethic in Nine Nonindustrialized Contexts: Some Surprising Non-POSH Findings

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    Gross, Carr, Reichman, Abdul-Nasiru, and Oestereich's (2017) article argues that industrial and organizational (I-O) psychology has a limited perspective that rarely goes beyond the specific professional populations in formal economies of high-income countriesa perspective they refer to as a POSH perspective. This valuable criticism should also eschew the notion that workers in nonindustrialized countries are necessarily different

    The role of analytical chemistry in exposure science: Focus on the aquatic environment

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    Exposure science, in its broadest sense, studies the interactions between stressors (chemical, biological, and physical agents) and receptors (e.g. humans and other living organisms, and non-living items like buildings), together with the associated pathways and processes potentially leading to negative effects on human health and the environment. The aquatic environment may contain thousands of compounds, many of them still unknown, that can pose a risk to ecosystems and human health. Due to the unquestionable importance of the aquatic environment, one of the main challenges in the field of exposure science is the comprehensive characterization and evaluation of complex environmental mixtures beyond the classical/priority contaminants to new emerging contaminants. The role of advanced analytical chemistry to identify and quantify potential chemical risks, that might cause adverse effects to the aquatic environment, is essential. In this paper, we present the strategies and tools that analytical chemistry has nowadays, focused on chromatography hyphenated to (high-resolution) mass spectrometry because of its relevance in this field. Key issues, such as the application of effect direct analysis to reduce the complexity of the sample, the investigation of the huge number of transformation/degradation products that may be present in the aquatic environment, the analysis of urban wastewater as a source of valuable information on our lifestyle and substances we consumed and/or are exposed to, or the monitoring of drinking water, are discussed in this article. The trends and perspectives for the next few years are also highlighted, when it is expected that new developments and tools will allow a better knowledge of chemical composition in the aquatic environment. This will help regulatory authorities to protect water bodies and to advance towards improved regulations that enable practical and efficient abatements for environmental and public health protection

    Foundations of Digital Arch{\ae}oludology

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    Digital Archaeoludology (DAL) is a new field of study involving the analysis and reconstruction of ancient games from incomplete descriptions and archaeological evidence using modern computational techniques. The aim is to provide digital tools and methods to help game historians and other researchers better understand traditional games, their development throughout recorded human history, and their relationship to the development of human culture and mathematical knowledge. This work is being explored in the ERC-funded Digital Ludeme Project. The aim of this inaugural international research meeting on DAL is to gather together leading experts in relevant disciplines - computer science, artificial intelligence, machine learning, computational phylogenetics, mathematics, history, archaeology, anthropology, etc. - to discuss the key themes and establish the foundations for this new field of research, so that it may continue beyond the lifetime of its initiating project.Comment: Report on Dagstuhl Research Meeting. Authored/edited by all participants. Appendices by Thierry Depauli

    Production bias in cultural evolution: An examination of cubic dice variation in experimental and archaeological contexts

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    Similar artifact function and conformism to social norms are two models commonly proposed to explain why ancient people shared a particular form of material culture. We propose an additional model for explaining such similarity, production bias, which focuses on interactions between raw materials and the production of material culture. By way of modern replication experiments and a survey of ancient examples, we use dice to exemplify production bias and discuss how it can be recognized in the archaeological record. Although there are 15 possible configurations for cubic dice, all of equal function, only three are common in the archaeological record. Replication experiments show that one is the result of production bias, and is differentially produced by novice dice-makers. The other two are the byproduct of conformist cultural transmission processes. A similar result holds for dot patterns, or how dots are placed with respect to one another to represent a particular number

    Témoignages d’appropriations : jeux de plateau romains en Égypte et au Soudan

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    International audienceraces of appropriation: Roman board games in Egypt and SudanBoard games in antiquity are characterized by their continuity in both shape and playing practice when crossing socio-political borders and centuries of time. But as much as these games appear similar throughout the archaeological record, traces of integration and appropriation are found in aspects not necessarily affecting rules of play or configurations of boards.Recently uncovered examples of the game of Duodecim scripta in Egypt and Sudan point to changes in board design or, at least, in design preference when compared to those found elsewhere in the Roman Empire. The presence of game boards in grave contexts further illustrates the extent of the appropriation that may have taken place.Egypt and Sudan in Greco-Roman times are on and across the border of the Roman world and provide ideal contexts for the understanding of the cultural appropriation process of board games in antiquity.Témoignages d’appropriations : jeux de plateau romains en Égypte et au SoudanLes jeux de plateau dans l’Antiquité se caractérisent par leur continuité au niveau de la morphologie et des pratiques ludiques à travers les frontières socio-politiques et les siècles. Cependant, bien que ces jeux démontrent une homogénéité au sein du matériel archéologique, des éléments d’intégration et d’appropriation se manifestent par certains aspects qui n’influencent pas nécessairement les règles ou les configurations des plateaux.Des exemples du jeu de Duodecim scripta découverts récemment en Égypte et au Soudan, indiquent des changements dans la conception du plateau, ou du moins, dans le choix du modèle par comparaison avec d’autres exemples mis au jour dans le reste de l’empire romain. De plus, la présence de plateaux de jeu en contexte funéraire illustre l’importance du processus d’appropriation qui s’est déroulé.L’Égypte et le Soudan à l’époque gréco-romaine se situent à la fois à cheval et au-delà des frontières du monde romain ce qui fournit des contextes exemplaires pour la compréhension des processus d’appropriation culturelle des jeux de plateau dans l’Antiquité

    A spectral moments analysis of Tsua and Ju|'hoan alveolar and palatal click consonants

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    Tsua is a critically-endangered language of the Eastern Kalahari Khoe languages where the historical processes of click replacement and click loss are relatively common. An acoustic analysis of Tsua’s remaining alveolar and palatal click consonants that have not undergone click loss reveals that on three statistical spectral moments — center of gravity, skew and kurtosis — the Tsua alveolar and palatal click bursts do not markedly differ from each other. T-tests reveal that the differences are not statistically significant. Moreover, the click burst duration and intensity differences are not statistically significant either. In contrast, an analysis of the alveolar and palatal clicks in Juǀ’hoan, which does not exhibit click loss, shows that these clicks are significantly different on all the acoustic measures. These findings may help shed light on the diachronic process of click loss in Tsua
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