How water is perceived and represented has an impact on the relationships between a given society and its water infrastructure. Historians have identified a shift in the perception of water during the nineteenth century, which was connected to the development of chemistry. From an understanding based in Hippocratic medicine and natural history that treated it as an infinite variety of substances, water eventually became understood as a simple compound consisting of oxygen and hydrogen. This resulted in the abstraction of water (...) from its social and environmental contexts, with consequences for the way water was managed. This article aims to demonstrate that such a view gives a mistaken intellectual coherence to a fragmented and conflicted process, which involved continuities, an adaptation of old frameworks to new social priorities, and fine changes in scientific thinking and practices. This paper examines the scientific and political debates concerning water infrastructure, surveys and analyses on water quality, medical reports and political measures in nineteenth-century Italy. Ultimately, the reduction of ‘waters’ to ‘water’ in Italy was more about determining who had the authority to assess water quality in the process of creating and stabilizing new power relations between the public and the private spheres than about the abstraction of water from its social and environmental contexts. (shrink)

Environmental journalism has been criticized by various special interest groups and some editors for advocacy and faulted for inaccuracies. Sources, in turn, many from the science communities, have been accused of inaccessibility, and public relations representatiws from both industry and environmental organizations are regularly blamed for unethical behaviors rangingfrom hyperbole to more serious discussion or omission of factual information. This article reports a preliminary study of ethical decision making among members of the Society of Environmental Journalists, identifying ethical motivation diljerences (...) using the Ethical Motivation Scale. The implications of the reported dominant extrinsic guides are discussed in light of a proposed protocol for ethical environmental communication. (shrink)

We investigate the uniform computational content of the open and clopen Ramsey theorems in the Weihrauch lattice. While they are known to be equivalent to $\mathrm {ATR_0}$ from the point of view of reverse mathematics, there is not a canonical way to phrase them as multivalued functions. We identify eight different multivalued functions and study their degree from the point of view of Weihrauch, strong Weihrauch, and arithmetic Weihrauch reducibility. In particular one of our functions turns out to be strictly (...) stronger than any previously studied multivalued functions arising from statements around $\mathrm {ATR}_0$. (shrink)

The Sarbanes-Oxley Act of 2002 is considered by many to have made the most sweeping changes affecting corporate governance since the Securities and Exchange Acts of 1933 and 1934. About 4 years after its passing, however, many governance experts question whether the time and expense of compliance engender any real reforms. This article examines whether corporations have restructured their boards in response to the enactment of Sarbanes-Oxley and finds evidence that companies are implementing changes that should strengthen the monitoring ability (...) of their boards. (shrink)

Reaching in the A-not-B situation is not the product of a single person, but rather of a person-person system. We argue that models of embodied cognition distributed over persons may be necessary to capture the essential qualities of evolving behaviors, even those as simple as perseverative reaching.

Fostering research integrity (RI) increasingly focuses on normative guidance and supportive measures within institutions. To be successful, the implementation of support should be informed by stakeholders’ experiences of RI support. This study aims to explore experiences of RI support in Dutch, Spanish and Croatian universities. In total, 59 stakeholders (Netherlands n = 25, Spain n = 17, Croatia n = 17) participated in 16 focus groups in three European countries. Global themes on RI support experiences were identified by thematic analysis. (...) Themes identified were: ‘RI governance and institutional implementation’, ‘RI roles and structures’, ‘RI education and supervision’, and ‘Infrastructure, technology and tools supporting daily practice’. Experiences of support differed between countries in relation to: the efforts to translate norms into practice; the extent to which RI oversight was a responsibility of RE structures, or separate RI structures; and the availability of support close to research practice, such as training, responsible supervision, and adequate tools and infrastructure. The study reinforces the importance of a whole institutional approach to RI, embedded within local jurisdictions, rules, and practices. A whole institutional approach puts the emphasis of responsibility on institutions rather than individual researchers. When such an approach is lacking, some stakeholders look for intervention by authorities, such as funders, outside of the university. (shrink)

ABSTRACT:A key factor in the decision to convert a publicly owned company to private status is the expectation that value will be created, providing the firm with rent. These rents have implications regarding the property rights of the firm’s capital-contributing constituencies. We identify and analyze the types of rent associated with the newly private firm. Compared to public firms, going private allows owners the potential to partition part of the residual risk to bond holders and employees, rendering them to be (...) co-residual risk bearers with owners. We propose that new promotion-based contracts with bond holders and employees, reflecting their particular investments, be negotiated as the firm migrates from public to private status. These contracts should acknowledge the firm’s intent to maximize shareholder value and its need to take the risks necessary to do so, but support that the firm’s survival not be undermined due to its possibly opportunistic owners. (shrink)

This thesis is devoted to the exploration of the complexity of some mathematical problems using the framework of computable analysis and descriptive set theory. We will especially focus on Weihrauch reducibility as a means to compare the uniform computational strength of problems. After a short introduction of the relevant background notions, we investigate the uniform computational content of problems arising from theorems that lie at the higher levels of the reverse mathematics hierarchy.We first analyze the strength of the open and (...) clopen Ramsey theorems. Since there is not a canonical way to phrase these theorems as multi-valued functions, we identify eight different multi-valued functions and study their degree from the point of view of Weihrauch, strong Weihrauch, and arithmetic Weihrauch reducibility.We then discuss some new operators on multi-valued functions and study their algebraic properties and the relations with other previously studied operators on problems. In particular, we study the first-order part and the deterministic part of a problem f, capturing the Weihrauch degree of the strongest multi-valued problem that is reducible to f and that, respectively, has codomain $\mathbb {N}$ or is single-valued.These notions proved to be extremely useful when exploring the Weihrauch degree of the problem $\mathsf {DS}$ of computing descending sequences in ill-founded linear orders. They allow us to show that $\mathsf {DS}$, and the Weihrauch equivalent problem $\mathsf {BS}$ of finding bad sequences through non-well quasi-orders, while being very “hard” to solve, are rather weak in terms of uniform computational strength. We then generalize $\mathsf {DS}$ and $\mathsf {BS}$ by considering $\boldsymbol {\Gamma }$ -presented orders, where $\boldsymbol {\Gamma }$ is a Borel pointclass or $\boldsymbol {\Delta }^1_1$, $\boldsymbol {\Sigma }^1_1$, $\boldsymbol {\Pi }^1_1$. We study the obtained $\mathsf {DS}$ -hierarchy and $\mathsf {BS}$ -hierarchy of problems in comparison with the Baire hierarchy and show that they do not collapse at any finite level.Finally, we work in the context of geometric measure theory and we focus on the characterization, from the point of view of descriptive set theory, of some conditions involving the notions of Hausdorff/Fourier dimension and Salem sets. We first work in the hyperspace $\mathbf {K}$ of compact subsets of $[0,1]$ and show that the closed Salem sets form a $\boldsymbol {\Pi }^0_3$ -complete family. This is done by characterizing the complexity of the family of sets having sufficiently large Hausdorff or Fourier dimension. We also show that the complexity does not change if we increase the dimension of the ambient space and work in $\mathbf {K}$. We also generalize the results by relaxing the compactness of the ambient space and show that the closed Salem sets are still $\boldsymbol {\Pi }^0_3$ -complete when we endow $\mathbf {F}$ with the Fell topology. A similar result holds also for the Vietoris topology.We conclude by analyzing the same notions from the point of view of effective descriptive set theory and Type-2 Theory of Effectivity, and show that the complexities remain the same also in the lightface case. In particular, we show that the family of all the closed Salem sets is $\Pi ^0_3$ -complete. We furthermore characterize the Weihrauch degree of the functions computing Hausdorff and Fourier dimension of closed sets.prepared by Manlio Valenti.E-mail:[email protected]. (shrink)

Since 2002, legislation in Spain has allowed for the creation and documentation of end-of-life decisionmaking. Over the intervening years, the actual implementation of such documents is very low. Through extensive analysis of the literature, this article explores the current status of the use of and attitudes toward advance directives in Spain and then proposes strategies for improvement in their implementation.

Community-based mental health care providers are increasingly contacted by external researchers for research study recruitment. Unfortunately, many do not possess the resources or personn...

Depuis longtemps, les médecins se sont intéressés au phénomène de la menstruation, qui renvoie au mystère de l’» éternel féminin ». À la fin du XIXe siècle, le discours médical sur les règles recoupe encore sur bien des points les préjugés populaires, notamment en ce qui concerne l’impureté du sang menstruel. Les médecins toutefois ne sont pas unanimes : perçue par certains comme un garant de l’équilibre féminin, une « saignée naturelle » indispensable à la bonne santé de la femme, (...) la menstruation est stigmatisée par d’autres comme un état pathologique induisant chez la femme indisposée des troubles aussi bien physiologiques que psychologiques. La question des règles est ainsi révélatrice d’a priori qui sont tout autant masculins que médicaux, et le discours des médecins ne fait qu’apporter une caution qui se veut scientifique à la perception de la femme comme une éternelle malade, étroitement soumise à son destin biologique. (shrink)

How well do scientists communicate to members of the mass media? A communication scholar reviews potential barriers to the essential dialogue necessary between those in the sciences and journalists who report science to the public. Suggestions for improving communication within this relationship, in spite of professional process differences, are offered, emphasizing adherence to shared ethical standards.

The migration of publicly-held companies to private status through use of private equity has been both lauded and lambasted. While agency theorists praise the public-to-private or PTP firm as being an efficient form of corporate governance, others suggest that going private allows owners and managers to extract, rather than add, value.We contribute by developing a categorization of the potential sources of value for the PTP firm. We analyze the effects of each source of value, and find that there are specific (...) negative effects for non-equity stakeholders associated with several sources. Our analysis indicates that the degree to which value is added versus extracted will vary across firms; yet, all will tend to engage in some value extraction. Policy implications are discussed. (shrink)

The newly private corporation challenges scholars to re-examine corporate social responsibility under a markedly different governance system. We theorize regarding the implications of public corporations going private through use of private equity. The new governance system includes few owners and an expert, involved board of directors; combined with a greatly reduced public presence, public-to-private firms are proposed to place greater emphasis on financial performance and lesser emphasis on social performance. Several variables are proposed to moderate the lesser emphasis on social (...) performance. (shrink)

In this work we investigate the Weihrauch degree of the problem Decreasing Sequence of finding an infinite descending sequence through a given ill-founded linear order, which is shared by the problem Bad Sequence of finding a bad sequence through a given non-well quasi-order. We show that $\mathsf {DS}$, despite being hard to solve, is rather weak in terms of uniform computational strength. To make the latter precise, we introduce the notion of the deterministic part of a Weihrauch degree. We then (...) generalize $\mathsf {DS}$ and $\mathsf {BS}$ by considering $\boldsymbol {\Gamma }$ -presented orders, where $\boldsymbol {\Gamma }$ is a Borel pointclass or $\boldsymbol {\Delta }^1_1$, $\boldsymbol {\Sigma }^1_1$, $\boldsymbol {\Pi }^1_1$. We study the obtained $\mathsf {DS}$ -hierarchy and $\mathsf {BS}$ -hierarchy of problems in comparison with the Baire hierarchy and show that they do not collapse at any finite level. (shrink)

Recent literature have underlined the connections between children’s reading skills and capacity to create and use mental representations or mental images; furthermore data highlighted the involvement of visuospatial abilities both during math learning and during subsequent developmental phases in performing math tasks. The present research adopted a longitudinal design to assess whether the processes of mental imagery in preschoolers (ages 4–5 years) are predictive of mathematics skills, writing and reading, in the early years of primary school (ages 6–7 years). The (...) research lasted for two school years; in the first phase, the general group of participants consisted of 100 children, and although all participants agreed to be part of the research, in the second phase, there was a mortality rate of 30%. In order to measure school learning and mental imagery processes four batteries of tests were used. The mental imagery battery evaluated mental generation, inspection and transformation processes. Data underlined that the different aspects in which mental imagery processes are articulated are differently implied in some skills that constitute school learning. These findings emphasise the potential usefulness of a screening for mental imagery ability for schoolchildren to adopt effective measures to increase their mental imagery abilities. (shrink)

Eight focus groups were conducted in four public hospitals in Madrid to explore healthcare professionals’ perceptions of advance directives in order to improve the understanding of their lack of success among physicians and patients. A purposive sample of sixty healthcare professionals discussed ADs and reasons for their infrequent use. Three main themes were identified: perceptions about their meaning, appraisals of their use in clinical practice, and decision-making about them. Healthcare professionals perceived a lack of clarity about their definition and implementation. (...) There is insufficient awareness of their efficacy in improving the quality of clinical relationships and decision-making, and they are often perceived only as a bureaucratic procedure. Advance directives are not integrated in the clinical practice of Madrid’s healthcare specialist services because their application is exceedingly complex, because of insufficient education about them, and because of lack of procedural clarity. Consequently, healthcare professionals are not aware of how ADs could improve clinical decision-making, of when and for whom their use is appropriate, and of who has responsibility for providing ADs-related information to patients. These circumstances contribute to patients’ lack of interest in completing these documents and to physicians’ sceptical views about their usefulness. (shrink)

Invited media scholars and journalists examine the general issue of nuclear waste, risk and the sicentific promises that were made, but not kept, about safe disposal. The mass media uncovered and reported on nuclear waste problems at Rocky Flats in Colorado and Hanford in Washington. Two environmental journalists review efforts to expose problems at these sites, how secrecy hampered reporting, and the effects of media coverage on nearby residents. An environmental communications scholar evaluates media coverage, the role of the U.S. (...) Department of Energy, and the impact of secrecy on public risk perceptions and attitudes toward government nuclear waste policies. (shrink)