Offshore stereo measurements of gravity waves

Stereo video techniques are effective for estimating the space-time wave dynamics over an area of the ocean. Indeed, a stereo camera view allows retrieval of both spatial and temporal data whose statistical content is richer than that of time series data retrieved from point wave probes. To prove this, we consider an application of the Wave Acquisition Stereo System (WASS) for the analysis of offshore video measurements of gravity waves in the Northern Adriatic Sea. In particular, we deployed WASS at the oceanographic platform Acqua Alta, off the Venice coast, Italy. Three experimental studies were performed, and the overlapping field of view of the acquired stereo images covered an area of approximately 1100 m2. Analysis of the WASS measurements show that the sea surface can be accurately estimated in space and time together, yielding associated directional spectra and wave statistics that agree well with theoretical models. From the observed wavenumber-frequency spectrum one can also predict the vertical profile of the current flow underneath the wave surface. Finally, future improvements of WASS and applications are discussed

The WASS Collective: Gender Transformations in Higher Education

This paper offers a critical perspective on issues around gender and sexual transformation within the context of UK Higher Education. Drawing on qualitative data carried out by undergraduate and postgraduate students, the analysis explores some of the diverse and often challenging ways in which young/er women and men are thinking and talking about gender, sexuality and feminism, as well as their strategies for turning ideas into political action. The research focuses on the activities and opinions of students belonging to an anti-sexist organisation within one UK university, who are engaged in campaigns to raise awareness about the damaging effects of gender and sexual inequalities, as well as promoting the popular appeal of contemporary feminisms. Locating the voices and research findings of the students themselves at the centre of the discussion, the paper is produced collaboratively between students and teachers who are involved in both the activist and research elements of this project. The paper also argues for (and provides evidence of) the transformative potential of alternative and critical forms of student engagement and student/ staff collaboration in relation to gender informed academic activism.Feminism, Post-Feminism, Anti-Sexism, Higher Education, Activism, Academic Activism, Praxis, Critical Pedagogy, Collaborative Methods

Dihydrogen and Acetylene Activation by a Gold(I)/Platinum(0) Transition Metal Only Frustrated Lewis Pair

The first example of a Frustrated Lewis Pair (FLP) solely constructed around transition metal centers is described in this work. We have focused on the established capacity of Au(I) and Pt(0) complexes to act as Lewis acidic and basic frag-ments, respectively, while employing sufficiently bulky PtBu3 and terphenyl phosphine ligands. This avoids formation of metallic Lewis adducts and confers the Au(I)/Pt(0) pair a remarkable capacity to activate dihydrogen and acetylene molecules in a fash-ion that closely resembles that of traditional main group FLP systems. As a consequence, unusual heterobimetallic Au(I)/Pt(II) complexes containing hydride (-H), acetylide (-C≡CH) and vinylene (-HC=CH-) bridges have been isolate

GraFIX: a semiautomatic approach for parsing low- and high-quality eye-tracking data

Fixation durations (FD) have been used widely as a measurement of information processing and attention. However, issues like data quality can seriously influence the accuracy of the fixation detection methods and, thus, affect the validity of our results (Holmqvist, Nyström, & Mulvey, 2012). This is crucial when studying special populations such as infants, where common issues with testing (e.g., high degree of movement, unreliable eye detection, low spatial precision) result in highly variable data quality and render existing FD detection approaches highly time consuming (hand-coding) or imprecise (automatic detection). To address this problem, we present GraFIX, a novel semiautomatic method consisting of a two-step process in which eye-tracking data is initially parsed by using velocity-based algorithms whose input parameters are adapted by the user and then manipulated using the graphical interface, allowing accurate and rapid adjustments of the algorithms’ outcome. The present algorithms (1) smooth the raw data, (2) interpolate missing data points, and (3) apply a number of criteria to automatically evaluate and remove artifactual fixations. The input parameters (e.g., velocity threshold, interpolation latency) can be easily manually adapted to fit each participant. Furthermore, the present application includes visualization tools that facilitate the manual coding of fixations. We assessed this method by performing an intercoder reliability analysis in two groups of infants presenting low- and high-quality data and compared it with previous methods. Results revealed that our two-step approach with adaptable FD detection criteria gives rise to more reliable and stable measures in low- and high-quality data

Why Does Sweden Have Higher Levels of Voter Turnout Than Finland?

Voter turnout is considered the “canary in the coal mine” when it comes to assessing the health of civic participation in a democracy; low turnout in particular is indicative of broader problems. Although voter turnout is quite high in both Sweden and Finland, turnout is notably higher in Sweden despite a long list of similarities between the two countries. Why is there this puzzling discrepancy? This paper employs a “most similar systems” research design to consider a wide variety of factors that can affect voter turnout and ultimately concludes that the difference lies in several different features of the two countries’ electoral systems. These features include the method used to translate votes into seats, constituency size, the number of political parties, type of ballot used, and presence or absence of compulsory voting laws

The Labour Government, the Treasury and the £6 pay policy of July 1975

The 1974-79 Labour Government was elected in a climate of opinion that was fiercely opposed to government intervention in the wage determination process, and was committed to the principles of free collective bargaining in its manifestoes. However, by December 1974 the Treasury was advocating a formal incomes policy, and by July 1975 the government had introduced a £6 flat rate pay norm. With reference to archival sources, the paper demonstrates that TUC and Labour Party opposition to incomes policy was reconciled with the Treasury's advocacy by limiting the Bank of England‟s intervention in the foreign exchange market when sterling came under pressure. This both helped to achieve the Treasury's objective of improving the competitiveness of British industry, and acted as a catalyst for the introduction of incomes policy because the slide could be attributed to a lack of market confidence in British counter-inflation policy