Simpler is better? Analysis of a codesign session with elders

Prototyping plays various roles in software engineering: it can function in an exploratory way in order to gather requirements, or generate an artifact that, through iterative cycles of development, leads to final delivery of the product or system. According to literature (Beaudouin-Lafon, M., and W. Mackay. 2007. “Prototyping Tools and Techniques.” In Human Computer Interaction Handbook: Fundamentals. CRC Press.; Lim, Y. K., E. Stolterman, and J. Tenenberg. 2008. “The anatomy of prototypes: Prototypes as filters, prototypes as manifestations of design ideas.” ACM Transactions on Computer-Human Interaction (TOCHI) 15 (2): 7.), a prototype can be described as an incomplete but flexible communication tool for a design idea, both manifesting and filtering interesting aspects of the original idea. On this basis, we propose a Peircean definition for this tool: a prototype can be considered as a complex set of signs, or better as a text, because each of its features literally “stands for” corresponding features of the final artifact, foreseeing particular aspects or the overall capacity of the outcome. But what happens when stakeholders involved in a project have no or little competence in tools and technologies discussed? Can they correctly interpret a prototype? To answer this question, we propose a Discourse Analysis (Duranti, A. 1997. Linguistic Anthropology. Cambridge, Mass: Cambridge University Press; Potter, J. 2004. “Discourse analysis as a way of analyzing naturally occurring talk.” In Qualitative research: Theory, Method and Practice, edited by D. Silverman, 200–221. SAGE; Schegloff, J. 1989. “Harvey Sacks’ lectures on conversation: an Introduction/memoir.” Human Studies 12: 185–209.) of a co-design session with elders of a daily centre for frail adults in Rome. In this context, we could observe how interactions between the material aspect of the prototype (i.e. the product itself) and its intended meaning (i.e. its significance) can produce distortions, in the form of aberrant interpretations or even a complete lack of comprehension. During this communication breakdown, prototypes lose their connection to the features and behaviors of the product: the relation between representamen and interpretant is lost.     

Signaling in academic ventures: the role of technology transfer offices and university funds

University spinoffs, an important subset of high-tech start-up companies, operate in a context characterized by marked information asymmetries that limit their chances of obtaining financing. Given the uncertainty and imperfect information that characterize these investment opportunities, signals about their potential value deserve further attention. We investigate the relationship between the main stakeholders involved in the process of creating a university spinoff—that is, the academic founders, the university technology-transfer office, and private investors—focusing on the role of public grants as effective signals that attract private venture capital (VC) funding. Using the database of all spinoff companies established to exploit inventions assigned to the University of Michigan from 1999 to 2010, we determine how the funds provided through the university technology-transfer office influence VC follow-on funding and consequent spinoff growth, controlling for the spinoff’s technology, the founders’ human capital, and the network’s resources. The empirical results support a signaling effect of the commercialization funds provided by the university and suggest an indirect impact on the growth of the spinoff’s sales through the mediating effect of VC financing.     

Thermal Modifications of Root Transparency and Implications for Aging: A Pilot Study

Root transparency has proven to be related to age and has been considered by different odontological methods for age estimation. Very little is known concerning possible variations of root transparency with heat, although the applicability of the method to burnt remains depends on the possible modifications of this specific variable. This pilot study presents the results of an experiment performed on 105 teeth obtained from dental patients and autopsy material, heated in an industrial oven at 50°C, 100°C, 150°C and 200°C. Root transparency was measured before and after the charring experiment. The heating process proved to radically modify root transparency, which decreased in 20% of samples at 50°C, in 34.6% at 100°C, in 50% at 150°C, in 77% at 200°C. The overall correlation index (CI) between decrease in root transparency and increase in temperature amounted to 0.96. These results show that heat may modify root transparency and suggest caution in using methods based on root transparency for age estimation.     

A microeconomic model of the demand of civil justice: is one institutional context better than another?

The paper analyzes how institutional elements affect the decision to file of risk neutral agents. In particular, we introduce an objective probability of winning given by the combination of a precedent-weight parameter (defining the type of legal system) and a transparency factor. 603,000 simulated trials, shaped upon our model, reveal two main findings: (1) the transparency level matters in terms of inefficient decisions; (2) a precedent driven system is not necessarily more efficient. Hence, policy makers should invest in increasing the level of information among courts and between courts and the parties both in civil and common law systems.     

Markers of chronic alcohol use in hair: comparison of ethyl glucuronide and cocaethylene in cocaine users

Two direct ethanol metabolites, namely ethyl glucuronide (EtG) and cocaethylene (CE), in the hair of cocaine (COC) users were compared in this study. Hair samples (n=68) were submitted to the determination of EtG (by liquid chromatography-electrospray-tandem mass spectrometry) and of COC and metabolites, including CE (by gas chromatography-mass spectrometry). Quantitative and qualitative results were compared. No quantitative correlation was found between EtG and CE, as well as between EtG and the cocaethylene concentration divided by the concentration of COC and its metabolites (benzoylecgonine and ecgonine methylester, as COC equivalents). Nevertheless, many factors are supposed to affect the amount of the two substances incorporated in the hair matrix, such as the subject's habits in ethanol and COC use, genetic variability in the metabolism of both substances, and the different chemical and physical properties of EtG and CE. When establishing a cut-off of 4 pg/mg for EtG and of 200 pg/mg for CE, 47 samples tested positive for EtG and 41 samples tested positive for CE; 12 samples out of the 47 EtG-positives tested negative for CE (25%), whereas 6 samples out of the 41 CE-positives tested negative for EtG (15%). According to these data, EtG appears to be a more sensitive and specific marker of non-moderate alcohol users than CE.     

Traditional Local Justice,Women’s Rights,and the Rule of Law: A Pluralistic Framework

The paper focuses on the application of a particular conception of the rule of law to situations characterized by traditional local justice and legal pluralism. While in the twentieth century international rule‐of‐law programmes were directed almost exclusively at state legal system, they have recently begun to take into account traditional local justice, namely, those institutions which in many world regions represent the main form of effective justice. Starting with a review of the positive and negative aspects of traditional local justice from a rule‐of‐law perspective, the paper underlines the widespread lack of protection of human rights, particularly of women’s rights. Discussing vertical rule‐of‐law functions in contexts of legal pluralism the paper stresses the advantages of an approach to the promotion of the rule of law based on mutual recognition and influence between different legal authorities and sources. It is argued that this “interactive” approach appears best suited to the complex frameworks of relations that characterize present‐day systems of deep legal pluralism. Finally, the paper underlines the correspondence between this approach and a conception of the rule of law as an ideal framework of plural interactions characterized by the limits imposed on the law by the law itself, and it discusses its advantages from the perspective of human rights and women’s rights promotion.     

The rise of populist parties in the aftermath of a massive corruption scandal

Public Choice - Populism is on the rise in Europe and America, and understanding its origins and evolution is becoming increasingly important. In this study, I investigate the effects of the...