Integration of the information systems in the production process: a case study

This paper evaluates the execution of an ERP – enterprise resource planning in a production process. The changes that were made to processes to make them compatible with ERP modules and adaptations that were required by the ERP implementation are presented. The presented study is different from the normal patterns of a vertical implementation, since its application is not direct. In order to use the standard modules of the ERP system, the internal processes were embellished and the data collection steps were integrated into the production process (production orders, inventory, production, daily consumption, daily output). The case study shows that the ERP implementation caused an improvement of the processes in the areas adjacent to production (purchasing, logistics, distribution, supply and sales). In conclusion, this paper presents the main advantages and disadvantages of the ERP system implementation, as well as some considerations and recommendations for the future ERP implementations.     

Simplifying the calculation of the P-value for Barnard's test and its derivatives

Unconditional non-asymptotic methods for comparing two independent binomial proportions have the drawback that they take a rather long time to compute. This problem is especially acute in the most powerful version of the method (Barnard, 1947). Thus, despite being the version which originated the method, it has hardly ever been used. This paper presents various properties which allow the computation time to be drastically reduced, thus enabling one to use not only the more traditional and simple versions given by McDonald et al. (1977) and Garside and Mack (1967), but also the more complex original version of Barnard (1947).     

Reliability,Validity and Classification Accuracy of the South Oaks Gambling Screen in a Brazilian Sample

The purpose of this study was to examine the reliability, validity and classification accuracy of the South Oaks Gambling Screen (SOGS) in a sample of the Brazilian population. Participants in this study were drawn from three sources: 71 men and women from the general population interviewed at a metropolitan train station; 116 men and women encountered at a bingo venue; and 54 men and women undergoing treatment for gambling. The SOGS and a DSM-IV-based instrument were applied by trained researchers. The internal consistency of the SOGS was 0.75 according to the Cronbach’s alpha model, and construct validity was good. A significant difference among groups was demonstrated by ANOVA (F _(2.238) = 221.3, P < 0.001). The SOGS items and DSM-IV symptoms were highly correlated (r = 0.854, P < 0.01). The SOGS also presented satisfactory psychometric properties: sensitivity (100), specificity (74.7), positive predictive rate (60.7), negative predictive rate (100) and misclassification rate (0.18). However, a cut-off score of eight improved classification accuracy and reduced the rate of false positives: sensitivity (95.4), specificity (89.8), positive predictive rate (78.5), negative predictive rate (98) and misclassification rate (0.09). Thus, the SOGS was found to be reliable and valid in the Brazilian population.     

統一资源定位器(URLs)對消费者行為的影響(英文)

這項研究是調查報章及雜誌廣告上出現的統一资源定位器(URLs),會否影響消费者對有關產品的看法及其消费行為。結果顯示,URL的出現會令消费者對有關產品的看法及其品牌形象有正面的影響。這個發現進一步確立了URL在宣傳手法中的獨特角色及貢獻,並且對市場從業員提供了一些在實務應用上的建議。     

Marital Harmony and Conflict: Links to Infants' Emotional Regulation and Cardiac Vagal Tone

This study is an investigation of linkages between marital quality (conflict and harmony) and infants' emotional and physiological regulation: It was hypothesized that infants exposed to greater levels of marital conflict would demonstrate lower levels of emotional and physiological regulation. Fifty‐six low‐risk infants and their mothers attended a laboratory session when infants were 6 months of age. A baseline EKG was gathered to assess infants' cardiac vagal tone and the Bayley Scales of Infant Development and Behavior Rating Scales were administered. Mothers also completed Braiker and Kelley's (1979) marital quality questionnaire. Consistent with past research with preschoolers, marital conflict was found to be linked to lower levels of emotion regulation in infants. However, unlike past research (Gottman & Katz, 1989), results indicated that marital conflict was associated with lower levels of cardiac vagal tone in infants as opposed to higher levels of vagal tone among preschoolers. These findings are explained in terms of a possible developmental alteration in the link between marital conflict and vagal tone from early infancy to later childhood. Findings also have important implications for understanding the potential impact of the early marital relational context for infants emerging regulatory abilities.     

La politique publique pour le développement durable: l’Amazonie,un cas illustratif

Comment utiliser l’éducation, la science et la technologie pour organiser une politique de développement durable dans l’État d’Amazonas, l’Unité fédérale la plus vaste du Brésil et d’Amazonie, qui compte 70 peuples indigènes ayant leur propre cosmogonie, 10 % de la réserve mondiale d’eau douce de surface, 25°000 kilomètres de fleuves navigables, 6,7 % de la biosphère tropicale mondiale, 72 millions d’hectares de territoires protégés, et 10 % de toutes les réserves forestières des tropiques humides de la planète, réparties sur 96% de son territoire? Cette proposition constitue le programme, ses principes structurels, ses mécanismes opérationnels et un ensemble d’actions visant à l’implantation et à l’organisation de cette politique de développement durable au cours de la période 2003-2015. Comment intégrer processus de la nature et processus culturels à un modèle de développement durable dans l’Amazonie? Telles sont les principales questions abordées par cet article, qui présente une initiative publique pionnière au Brésil pour construire des modèles de développement durable dans l’Amazonie.     

On-Site Storage of High Level Nuclear Waste: Attitudes and Perceptions of Local Residents

No public policy issue has been as difficult as high-level nuclear waste. Debates continue regarding Yucca Mountain as a disposal site, and—more generally—the appropriateness of geologic disposal and the need to act quickly. Previous research has focused on possible social, political, and economic consequences of a facility in Nevada. Impacts have been predicted to be potentially large and to emanate mainly from stigmatization of the region due to increased perceptions of risk. Analogous impacts from leaving waste at power plants have been either ignored or assumed to be negligible. This paper presents survey results on attitudes of residents in three counties where nuclear waste is currently stored. Topics include perceived risk, knowledge of nuclear waste and radiation, and impacts on jobs, tourism, and housing values from leaving waste on site. Results are similar to what has been reported for Nevada; the public is concerned about possible adverse effects from on-site storage of waste.     

The changing dynamics of land conflict in the Brazilian Amazon: The rural-urban complex and its environmental implications

The Brazilian Amazon is an area of both serious environmental degradation and social instability. Despite billions of dollars spent on economic development and the rapid pace of urbanization, deforestation is extreme and violent land conflict is intense. Although episodes of conflict over land are common in Brazilian history, this paper focuses on agrarian issues that arose with the opening of the Amazon frontier in the 1970s. The paper argues that the nature of land conflict in the eastern Brazilian Amazon is dynamic, and proposes a two-stage model to illustrate how the struggle has evolved from an agrarian phenomenon to an organized resistance that is urban-based. Recognizing the interaction between cities and rural areas in the frontier reaches of the Brazilian Amazon is key to understanding the land struggle in the face of urbanization. The analytical framework deployed considers the transformation of the region from an agrarian frontier to an urbanized frontier, assessing the dynamic nature of the land struggle and examining the implications for land cover change.     

AN URBAN ENCOUNTER

Computing research has long been interested in location-aware mobile games, such as hybrid reality games, location-based games and urban games. With an increasingly pervasive IT infrastructure and comparatively affordable mobile devices, such games are becoming part of everyday play around the world. A study of an urban night-game called Encounter widely played in the Former Soviet Union and the Russian-speaking Diaspora is presented. The ways in which IT enables a complex interaction between the local experience of play in the urban environment and the geographically distributed nature of the player community are considered. The findings illustrate how this form of location-aware mobile game-play pulled together local engagement and global player communities into socio-technical assemblages, showing the interplay between local attachments, distant connections and the location-based communication in daily experience. The most important outcome of these games then was not the direct individual engagement with the urban environment through technology or the collaboration with strangers in the course of play (although these were the necessary prerequisites), but the social relationships that, while gained in-game, could be leveraged for civic engagement, belonging and mutual support. While the local, physical experience of the everyday and the game was important, the connections to the distributed community resulted in expanded horizons and changed the nature of the local experience as players felt they could belong to something larger than the locales they physically inhabited.