Neural basis of lexical-semantic processing and integration of symbolic gestures with words

Three studies investigated the relation between symbolic gestures and words, aiming at discover the neural basis and behavioural features of the lexical semantic processing and integration of the two communicative signals. The first study aimed at determining whether elaboration of communicative signals (symbolic gestures and words) is always accompanied by integration with each other and, if present, this integration can be considered in support of the existence of a same control mechanism. Experiment 1 aimed at determining whether and how gesture is integrated with word. Participants were administered with a semantic priming paradigm with a lexical decision task and pronounced a target word, which was preceded by a meaningful or meaningless prime gesture. When meaningful, the gesture could be either congruent or incongruent with word meaning. Duration of prime presentation (100, 250, 400 ms) randomly varied. Voice spectra, lip kinematics, and time to response were recorded and analyzed. Formant 1 of voice spectra, and mean velocity in lip kinematics increased when the prime was meaningful and congruent with the word, as compared to meaningless gesture. In other words, parameters of voice and movement were magnified by congruence, but this occurred only when prime duration was 250 ms. Time to response to meaningful gesture was shorter in the condition of congruence compared to incongruence. Experiment 2 aimed at determining whether the mechanism of integration of a prime word with a target word is similar to that of a prime gesture with a target word. Formant 1 of the target word increased when word prime was meaningful and congruent, as compared to meaningless congruent prime. Increase was, however, present for whatever prime word duration. In the second study, experiment 3 aimed at determining whether symbolic prime gesture comprehension makes use of motor simulation. Transcranial Magnetic Stimulation was delivered to left primary motor cortex 100, 250, 500 ms after prime gesture presentation. Motor Evoked Potential of First Dorsal Interosseus increased when stimulation occurred 100 ms post-stimulus. Thus, gesture was understood within 100ms and integrated with the target word within 250 ms. Experiment 4 excluded any hand motor simulation in order to comprehend prime word. The effect of the prior presentation of a symbolic gesture on congruent target word processing was investigated in study 3. In experiment 5, symbolic gestures were presented as primes, followed by semantically congruent target word or pseudowords. In this case, lexical-semantic decision was accompanied by a motor simulation at 100ms after the onset of the verbal stimuli. Summing up, the same type of integration with a word was present for both prime gesture and word. It was probably subsequent to understanding of the signal, which used motor simulation for gesture and direct access to semantics for words. However, gesture and words could be understood at the same motor level through simulation if words were preceded by an adequate gestural context. Results are discussed in the prospective of a continuum between transitive actions and emblems, in parallelism with language; the grounded/symbolic content of the different signals evidences relation between sensorimotor and linguistic systems, which could interact at different levels.

Real time optimization in chemical process: evaluation of strategies, improvements and industrial application.

The increasing economic competition drives the industry to implement tools that improve their processes efficiencies. The process automation is one of these tools, and the Real Time Optimization (RTO) is an automation methodology that considers economic aspects to update the process control in accordance with market prices and disturbances. Basically, RTO uses a steady-state phenomenological model to predict the process behavior, and then, optimizes an economic objective function subject to this model. Although largely implemented in industry, there is not a general agreement about the benefits of implementing RTO due to some limitations discussed in the present work: structural plant/model mismatch, identifiability issues and low frequency of set points update. Some alternative RTO approaches have been proposed in literature to handle the problem of structural plant/model mismatch. However, there is not a sensible comparison evaluating the scope and limitations of these RTO approaches under different aspects. For this reason, the classical two-step method is compared to more recently derivative-based methods (Modifier Adaptation, Integrated System Optimization and Parameter estimation, and Sufficient Conditions of Feasibility and Optimality) using a Monte Carlo methodology. The results of this comparison show that the classical RTO method is consistent, providing a model flexible enough to represent the process topology, a parameter estimation method appropriate to handle measurement noise characteristics and a method to improve the sample information quality. At each iteration, the RTO methodology updates some key parameter of the model, where it is possible to observe identifiability issues caused by lack of measurements and measurement noise, resulting in bad prediction ability. Therefore, four different parameter estimation approaches (Rotational Discrimination, Automatic Selection and Parameter estimation, Reparametrization via Differential Geometry and classical nonlinear Least Square) are evaluated with respect to their prediction accuracy, robustness and speed. The results show that the Rotational Discrimination method is the most suitable to be implemented in a RTO framework, since it requires less a priori information, it is simple to be implemented and avoid the overfitting caused by the Least Square method. The third RTO drawback discussed in the present thesis is the low frequency of set points update, this problem increases the period in which the process operates at suboptimum conditions. An alternative to handle this problem is proposed in this thesis, by integrating the classic RTO and Self-Optimizing control (SOC) using a new Model Predictive Control strategy. The new approach demonstrates that it is possible to reduce the problem of low frequency of set points updates, improving the economic performance. Finally, the practical aspects of the RTO implementation are carried out in an industrial case study, a Vapor Recompression Distillation (VRD) process located in Paulínea refinery from Petrobras. The conclusions of this study suggest that the model parameters are successfully estimated by the Rotational Discrimination method; the RTO is able to improve the process profit in about 3%, equivalent to 2 million dollars per year; and the integration of SOC and RTO may be an interesting control alternative for the VRD process.

Advances in camera trap data management tools: Towards collaborative development and integration with GIS

Camera traps have become a widely used technique for conducting biological inventories, generating a large number of database records of great interest. The main aim of this paper is to describe a new free and open source software (FOSS), developed to facilitate the management of camera-trapped data which originated from a protected Mediterranean area (SE Spain). In the last decade, some other useful alternatives have been proposed, but ours focuses especially on a collaborative undertaking and on the importance of spatial information underpinning common camera trap studies. This FOSS application, namely, “Camera Trap Manager” (CTM), has been designed to expedite the processing of pictures on the .NET platform. CTM has a very intuitive user interface, automatic extraction of some image metadata (date, time, moon phase, location, temperature, atmospheric pressure, among others), analytical (Geographical Information Systems, statistics, charts, among others), and reporting capabilities (ESRI Shapefiles, Microsoft Excel Spreadsheets, PDF reports, among others). Using this application, we have achieved a very simple management, fast analysis, and a significant reduction of costs. While we were able to classify an average of 55 pictures per hour manually, CTM has made it possible to process over 1000 photographs per hour, consequently retrieving a greater amount of data.

Perspectives of Teachers Regarding the Integration of Mathematics and Science at the Secondary School Level

The integration of mathematics and science in secondary schools in the 21st century continues to be an important topic of practice and research. The purpose of my research study, which builds on studies by Frykholm and Glasson (2005) and Berlin and White (2010), is to explore the potential constraints and benefits of integrating mathematics and science in Ontario secondary schools based on the perspectives of in-service and pre-service teachers with various math and/or science backgrounds. A qualitative and quantitative research design with an exploratory approach was used. The qualitative data was collected from a sample of 12 in-service teachers with various math and/or science backgrounds recruited from two school boards in Eastern Ontario. The quantitative and some qualitative data was collected from a sample of 81 pre-service teachers from the Queen’s University Bachelor of Education (B.Ed) program. Semi-structured interviews were conducted with the in-service teachers while a survey and a focus group was conducted with the pre-service teachers. Once the data was collected, the qualitative data were abductively analyzed. For the quantitative data, descriptive and inferential statistics (one-way ANOVAs and Pearson Chi Square analyses) were calculated to examine perspectives of teachers regardless of teaching background and to compare groups of teachers based on teaching background. The findings of this study suggest that in-service and pre-service teachers have a positive attitude towards the integration of math and science and view it as valuable to student learning and success. The pre-service teachers viewed the integration as easy and did not express concerns to this integration. On the other hand, the in-service teachers highlighted concerns and challenges such as resources, scheduling, and time constraints. My results illustrate when teachers perceive it is valuable to integrate math and science and which aspects of the classroom benefit best from the integration. Furthermore, the results highlight barriers and possible solutions to better the integration of math and science. In addition to the benefits and constraints of integration, my results illustrate why some teachers may opt out of integrating math and science and the different strategies teachers have incorporated to integrate math and science in their classroom.

Towards a new design of South American integration? Jean Monnet/Robert Schuman Paper Series, Special Issue January 2013

The design of South American integration is becoming different. This has been quite common in the trajectory of over six decades of initiatives aimed at generating institutional frameworks to facilitate regional integration. However, even when it has become apparent that the previous design is undergoing a new process of change, it would be difficult to predict for how long the one that is beginning to take shape will remain in effect. The experience of recent decades suggests great caution in forecasts that are optimistic about any eventual longevity. Several factors are contributing to this redesign. Some are external to the region while others are endogenous. The combination of these factors will influence the future design of South American integration. If past lessons are correctly capitalized and certain advantage is derived from the leeway provided by a decentralized international system with multiple options, we can anticipate that what will predominate in the region will be multidimensional integration agreements (with political and economic objectives at the same time) and with cross-memberships and commitments. If this were the case, the actual impact on regional governance, social and productive integration and the competitive insertion at a global scale will depend largely on the following factors: the quality and sustainability of the strategy for development and global and regional insertion of each country; the combination of a reasonable degree of flexibility and predictability in the commitments made and their corresponding ground rule, and the density of the network of cross-interests that can be achieved as a result of the respective regional integration agreements, reflected in multiple transnational social and production networks.

Brexit or not? Time for the EU to move. EPC Commentary, 8 September 2014

The deteriorating relationship between the United Kingdom (UK) and the rest of the EU, including the prospect of a referendum on EU membership, would have dominated the Union’s agenda had it not been for the economic/financial crisis, followed by the external crisis which we are now facing in the East. Precisely because of these crises, it is now time for the incoming European Commission to take the bull by the horns and ensure that the EU can move on from a potential referendum and its possible outcomes. The June European Council noted that “the UK raised some concerns related to the future development of the EU. These concerns will need to be addressed. In this context, the European Council noted that the concept of ever closer union allows for different paths of integration for different countries, allowing those that want to deepen integration to move ahead, while respecting the wish of those who do not want to deepen any further.” While the EU has, arguably, successfully developed at different speeds for decades, to address the UK’s (fundamental) concerns, it is now time to work out whether and how the UK can be accommodated, and what this would mean in practice. UK membership is desirable but not at any price, so the aim should be to keep the UK in, while also ensuring that the principles on which the EU is built are protected. There will need to be a modus operandi which enables the EU and in particular, the Eurozone, to continue to make progress in addressing the shortcomings of European integration and European Monetary Union (EMU) in particular, while at the same time offering a reform package that can satisfy the UK. This does not necessarily mean that all EMU reforms have to be within the EU framework: additional intergovernmental arrangements could also be a possibility. However, this could add to the complexity and inefficiency of the system, as well as sidelining the supranational element of EU governance which will be needed to make EMU function.

The Border Management Programme in Central Asia: Explaining the European Union's Choice of Implementing Partners. Bruges Regional Integration & Global Governance Papers 3/2014

Between 2003 and 2014 the European Union’s (EU) Border Management Programme in Central Asia was implemented by the United Nations Development Programme (UNDP). However, the latter’s implementing responsibilities have just come to an end, with the next phase of the programme to be implemented by an EU member state consortium. This paper seeks to explain why the EU chose the UNDP to implement the programme in the first place; why the programme was redelegated to the UNDP over successive phases; and why, in the end, the EU has opted for a member state consortium to implement the next phase of the programme. The paper will draw on two alternative accounts of delegation: the principal-agent approach and normative institutionalism. Ultimately, it will be argued that both the EU’s decision(s) to delegate (and redelegate) implementing responsibilities to the UNDP, and its subsequent decision to drop the organisation in favour of an EU member state consortium, were driven for the most part by a rationalist ‘logic of consequentiality’. At the same time, a potential secondary role of a normative institutionalist ‘logic of appropriateness’ – as a supplementary approach – will not be discounted.

The sultans of swing: Turkey's stance on integration with the European Union. OSW Point of View Number 37, November 2013

Despite a rise in anti-EU rhetoric and a growing assertiveness in Ankara’s relations with Brussels, Turkey will continue to seek closer integration with the European Union in the coming years. The current stalemate in the accession process has been a source of irritation to Recep Tayyip Erdoğan’s government. Nonetheless, a complete collapse of accession talks would be a much worse scenario for the ruling AKP party. Currently, the government is primarily interested in keeping the negotiation process alive, rather than hoping to gain full membership any time soon. Erdoğan’s government will likely seek to continue the accession talks because the AKP is acutely aware of their importance for the country’s domestic politics, for its the economy, and – although to a lesser extent – for Turkey’s international standing. The opportunity to capitalise on this process will encourage the Turkish government to avoid crises in its relations with the EU, or to at least mitigate the impact of any potential diplomatic fallouts.

Greater Europe. Putin's vision of European (dis)integration. OSW Study 46/2013

On several occasions since 2001 Vladimir Putin has raised the concept of ‘Greater Europe’, a partly-integrated common space comprising mainly Russia and the European Union. This concept has never been recast into a detailed political programme. While it has been championed as‘a Europe without dividing lines’, the concept would in practice permanently split Europe into two geopolitical blocs – the Western bloc of the European Union, with Germany in the dominant role, and the Eastern bloc, consisting of the emerging Eurasian Union, with Russia in a hegemonic position. In recent years Russia has undertaken a number of initiatives aimed at implementing some elements of the concept. However, most of these have failed to become reality. In this context, we should expect Russia’s policy to focus on implementing its priority project of Eurasian integration, based on the structures of the Customs Union/the Eurasian Union. The Greater Europe project, on the other hand, will be postponed until the time when, as Moscow believes, a weakened EU will be ready to accept Russian proposals.

Eurasian integration. Russia's attempt at the economic unification of the post-Soviet area. OSW Study 44/2013

In 2009, Vladimir Putin, the then Russian prime minister, gave impetus to the establishment of closer relations within what was then a still narrow group of three countries: Russia, Kazakhstan and Belarus. Russia was determined in embarking on the implementation of the principles of the Customs Union among these three states and, since 2012, within the Common Economic Space as well. This process of integration is intended to bring about the introduction of ‘four freedoms’ in this area: the free movement of goods, services, capital and labour. From Moscow’s point of view, building up such integration structures is especially necessary in order to counteract the economic expansion of the European Union and China. It also feels it is important to take measures against the loosening of the bonds between the CIS countries and Russia. At the same time, close co-operation is expected to guarantee for Russia that the strong politico-economic influences in this area will be maintained. Despite the numerous limitations of the integration process, such as the small number of the participating states or limited progress in implementing the CES, this is still the most advanced integration programme in the region seen since the collapse of the USSR. Progress in putting the rules of the Customs Union into practice can be seen as a success for Moscow. In turn, the formation of the CES is still at an early stage, and it is difficult to determine at this point to what extent the three countries will harmonise their markets.

The Path to European Integration: A Historical Institutionalist Perspective, CES Germany & Europe Working Papers, No. 05.2, 25 October 1994

Many European and American observers of the EC have criticized "intergovemmentalist" ac­ counts for exaggerating the extent of member state control over the process of European integra­ tion. This essay seeks to ground these criticisms in a "historical institutionalist" account that stresses the need to study European integration as a political process which unfolds over time. Such a perspective highlights the limits of member-state control over long-term institutional de­ velopment, due to preoccupation with shorHerm concerns, the ubiquity of unintended conse­ quences, and processes that "lock in" past decusions and make reassertions of member-state control difficult. Brief examination of the evolution of social policy in the EC suggests the limita­ tions of treating the EC as an international regime facilitating collective action among essentially sovereign states. It is ore useful to view integration as a "path-dependent" process that has pro­ duced a fragmented but still discernible "multitiered" European polity.

The Eurasian Economic Union: a time of crisis. OSW COMMENTARY NUMBER 195/27.01.2016

The Eurasian Economic Union (EaEU), a project forced through by Russia which links it to Kazakhstan, Belarus, Armenia and Kyrgyzstan, is currently struggling with serious problems. The economic crisis in Russia – mainly caused by the fall in the price of oil on world markets and exacerbated by sanctions imposed by Western countries in connection with the Ukraine conflict – is affecting these uncompetitive post-Soviet economies which are dependent on Russia. This has resulted in increased economic and political tension among the members of the EaEU. From Russia’s point of view, however, the EaEU project remains useful, because it is not economic integration that is Moscow’s priority. The Union remains its most important instrument for implementing the Kremlin’s geo-political objectives, in particular maintaining its sphere of influence and preventing post-Soviet countries from integrating with the West, as well as restricting their rapprochement with China. Moscow is pushing for the EaEU to include new countries, strengthening its tools for political dominance within the Union, and promoting its project on the international stage. However, the future of this project will depend on both the continued determination of the Kremlin, and whether the other countries can change the rules for integration by taking advantage of the current crisis.

Integration of robotic inverse kinematic routines in an algorithmic 3D modeling software

An industrial manipulator equipped with an automatic clay extruder is used to realize a machine that can manufacture additively clay objects. The desired geometries are designed by means of a 3D modeling software and then sliced in a sequence of layers with the same thickness of the extruded clay section. The profiles of each layer are transformed in trajectories for the extruder and therefore for the end-effector of the manipulator. The goal of this thesis is to improve the algorithm for the inverse kinematic resolution and the integration of the routine within the development software that controls the machine (Rhino/Grasshopper). The kinematic model is described by homogeneous transformations, adopting the Denavit-Hartenberg standard convention. The function is implemented in C# and it has been preliminarily tested in Matlab. The outcome of this work is a substantial reduction of the computation time relative to the execution of the algorithm, which is halved.

Survey bottom trawl data of Micromesistius poutassou (blue whiting) in Bay of Biscay and Celtic Sea from the EVHOE time series (1997-2011)

Data were collected during various groundfish surveys carried out by IFREMER from October to December between 1997 and 2011, on the eastern continental shelf of the Bay of Biscay and in the Celtic Sea (EVHOE series). The sampling design was stratified according to latitude and depth. A 36/47 GOV trawl was used with a 20 mm mesh codend liner. Haul duration was 30 minutes at a towing speed of 4 knots. Fishing was restricted to daylight hours. Catch weights and catch numbers were recorded for all species and body size measured. The weights and numbers per haul were transformed into abundances per km**2 by considering the swept area of a standard haul (0.069 km**2).