Bayesian Updating Rules in Continuous Opinion Dynamics Models

In this article, I investigate the use of Bayesian updating rules applied to modeling social agents in the case of continuos opinions models. Given another agent statement about the continuous value of a variable $x$, we will see that interesting dynamics emerge when an agent assigns a likelihood to that value that is a mixture of a Gaussian and a Uniform distribution. This represents the idea the other agent might have no idea about what he is talking about. The effect of updating only the first moments of the distribution will be studied. and we will see that this generates results similar to those of the Bounded Confidence models. By also updating the second moment, several different opinions always survive in the long run. However, depending on the probability of error and initial uncertainty, those opinions might be clustered around a central value.Comment: 14 pages, 5 figures, presented at SigmaPhi200

La innovación como proceso: aplicación a la enseñanza de temas introductórios de Termodinámica

El presente trabajo muestra algunos resultados de un primer análisis de las actividades incluidas en una propuesta innovadora sobre temas de Termodinámica. Esta propuesta contempló aspectos conceptuales y metodológicos de temas básicos comprendidos en un curso introductorio. La propuesta incluyó modificaciones no sólo en la presentación de los conceptos sino también en la actividad desarrollada en clase por los alumnos y en la ejercitación posterior. Estuvo enmarcada en un proceso que involucró a dos cátedras de distintos niveles de una misma Facultad y se caracterizó por una realimentación entre la implementación de los cambios y la evaluación del aprendizaje logrado. El análisis de una evaluación sistemática de la incorporación de conceptos, tale como energía, trabajo y calor, mostró, junto a una mejor incorporación y persistencia en el tiempo de los conceptos indagados, la necesidad de un cuidadoso diseño de los instrumentos de evaluación.Some of the results obtained through the analysis of activities included in an innovative proposal on the teaching of thermodynamics at an introductory level are shown. This proposal dealt with conceptual and methodological aspects about basic concepts and included changes in the way these concepts were introduced and in-classroom student activities. The innovative process, involving two courses of different level which belong to the same School, was characterized by a constant feedback between implementation of changes and evaluation of student achievement. The systematic assessment done through testing of concepts such as energy, work and heat has shown not only a better incorporation and permanence of the inquired concepts but also suggests the need of careful survey design.Fil: Bordogna, C.. Universidad Nacional de la Plata. Facultad de Ingeniería. Departamento de Fisicomatemática; ArgentinaFil: Cotignola, M. I.. Universidad Nacional de la Plata. Facultad de Ingeniería. Departamento de Fisicomatemática; ArgentinaFil: Punte, Graciela Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Capannini, O. M.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentin

Integrating and normalising coaching as a routine practice in doctoral supervision

Aim/Purpose: Recent research highlights the growing decline in doctoral students’ mental health and wellbeing, caused not only by the pressures, stress, and isolation of doctoral studies but also by existential issues around personal development and future prospects. Consequently, we argue that there is an urgent need to reassess the supervisory process to support doctoral students in addressing these concerns. This paper offers a potential solution to this challenge by exploring and examining how integrating coaching methods into doctoral supervision can support doctoral students’ growth and development, thereby increasing their wellbeing and human flourishing. Coaching aims to help individuals produce optimal performance and improvements in personal and professional settings by deploying a series of tools and models. Coaching is essentially a non-directive form of development, enabling people to identify goals and skills and then extracting the capacity people have within themselves to achieve their ambitions. This paper explores how coaching methods could be made a regular feature of doctoral supervision. Background: The need to reconfigure doctoral supervision as a practice to address humanistic issues regarding whole-person development, self-actualisation, and personal worth is nothing new. Over the years, researchers have produced models of doctoral supervision, highlighting the growing need for supervision to incorporate more pastoral and emancipatory elements, which facilitate personal growth instead of focusing purely on academic function and criticality. Although coaching is identified in previous studies as being a valuable addition, nothing examines how to modify existing supervision practices to accommodate more pastoral elements. Methodology: This paper offers a conceptual analysis whereby the argument primarily synthesizes existing research on doctoral supervision to understand why coaching methods may provide a solution to the evolving requirements of student welfare and emancipation. Since the commentary in this paper is not based on the findings of an empirical study, the following two conceptual research questions frame the discussion. First, are coaching methods beneficial when super-vising doctoral students? Second, what are the challenges when implementing and integrating coaching methods into existing doctoral supervisory practice? The paper utilises the Normalisation Process Theory as a ‘thinking tool’ to help answer these questions. The theory evaluates phenomena in applied social research settings to help understand how complex practices are made workable and integrated into context-dependent ways. Therefore, the theory acts as an analytical tool, enabling researchers to think through implementation issues when designing complex interventions and their evaluation. Contribution: This paper contributes to knowledge by highlighting ways in which management responsible for a doctoral provision in higher education settings can modify their organisational structures and systems to encourage coaching methods to become a normalised part of doctoral supervision, thereby legitimising its practice. Findings: The Normalisation Process Theory has value because it produces a roadmap for integrating and implementing new or modified practices into existing systems of operation. It, therefore, assists by producing an output that enables a current/new practice to be dissected and categorised under specific headings. In this research context, this output assisted in understanding the operational challenges when considering the normalisation of a practice. The theory helped generate something managers tasked with managing doctoral provision could consider (i.e., institutional paradigms, policies, regulations, etc.) when thinking about what may need to be reconfigured to enable coaching methods to become an integrated and normalised part of doctoral supervision over time. Recommendations for Practitioners: It is recommended that practitioners consider the integration of coaching methods into supervision. First, once implemented, it requires monitoring to ensure the practice’s quality and consistency amongst the supervisory community. Secondly, to assess the impact of the practice on other services within the organisation, such as student services or faith services, and thirdly, to ensure training in coaching methods is made timely and relevant to assist all academics involved in doctoral supervision. Recommendations for Researchers: The authors recommend collecting empirical evidence using the Normalisation Process Theory to evaluate the integration and normalisation of a range of practices in higher education settings. Moreover, once implemented, more research is required on the long-term value of coaching methods within doctoral settings. Impact on Society: Doctoral education is increasingly significant in a world where knowledge is fundamental to generating economic growth. Identified as having the technical and professional skills needed to fuel the knowledge-based economy, student wellbeing, and mental health must be optimal to ensure they can contribute to the knowledge-based economy as effectively as possible. Future Research: More research must be conducted on how doctoral supervision can become more humanistic; for example, by focusing on student self-awareness, reflection, and reframing instead of just the traditional academic function. Consequently, improving these facets is vital in developing sustained wellbeing and life-long success

A Survey of Volunteered Open Geo-Knowledge Bases in the Semantic Web

Over the past decade, rapid advances in web technologies, coupled with innovative models of spatial data collection and consumption, have generated a robust growth in geo-referenced information, resulting in spatial information overload. Increasing 'geographic intelligence' in traditional text-based information retrieval has become a prominent approach to respond to this issue and to fulfill users' spatial information needs. Numerous efforts in the Semantic Geospatial Web, Volunteered Geographic Information (VGI), and the Linking Open Data initiative have converged in a constellation of open knowledge bases, freely available online. In this article, we survey these open knowledge bases, focusing on their geospatial dimension. Particular attention is devoted to the crucial issue of the quality of geo-knowledge bases, as well as of crowdsourced data. A new knowledge base, the OpenStreetMap Semantic Network, is outlined as our contribution to this area. Research directions in information integration and Geographic Information Retrieval (GIR) are then reviewed, with a critical discussion of their current limitations and future prospects

Нейросекреторная активность супраоптического ядра переднего гипоталамуса кроликов под действием транскутанной электростимуляции зрительного анализатора

На 8 кролях породи Метелик вивчали вплив непрямої черезшкірної електростимуляції зорового аналізатора на нейросекреторну активність магноцелюлярних клітин супраоптичного ядра переднього гіпоталамусу. На мікропрепаратах інтактних тварин переважали нейрони II морфофункціонального типу, що перебувають у стадії синтезу нейросекрету. Показано, що за дії электростимуляції спостерігається перерозподіл головних морфо-функціональних типів нейронів. Відзначено збільшення змісту клітин I й III типів, відповідно у стадіях спокою після виведення секрету й накопичення, що вказує на активацію процесів звільнення нейросекрету і його акумуляції. Виразність реакції нервової тканини однакова при силі стимулюючого струму 100 мкА й 300 мкА.The influence of indirect through-skin electrostimulation (different doses) of the optical analyser on neurosecretory activity of anterior hypothalamus magnocellular nucleus was stading during chronic experiment. The stady was carried out on rabbits. Five morphological types of neurons was exposed in the supraoptical nucleus of control animal groop: I type- phase of rest after neurosecrets leading, II- phase of synthesis, III- phase of accumulation, IV - leading phase, V - phase of degerneration, but neurons of II types was prevalenced (51%). The indirect electrostimulation of the optical analyser provokes quantitative changes of keeping same neurons types. The number of I and III types neurons increases (on 20% and 7%) . The kind of changes is indicative of electrostimulation activation influense on neurosecrets leading and accumulation. Expression of nervous tissue reaction was identical under different doses (100 mkA and 300 mkA) of afferent electrostimulation

Community resilience : a policy tool for local government?

In many countries, local government has been a prime target of austerity measures. In response, local authorities are exploring a new repertoire of policy approaches in a bid to provide more with less. In England, local authorities have been drawn to community resilience as a pragmatic response to the challenge of deploying shrinking resources to support communities exposed to social and economic disruption. This application of resilience thinking is not without its challenges. It demands a working definition of community resilience that recognises the potential for communities to prove resilient to shocks and disruptions, but avoids blaming them for their predicament. There is also the practical challenge of developing and targeting interventions to promote and protect resilience. This paper sets out to explore these issues and establish the potential utility of community resilience as a policy tool through case study analysis in the city of Sheffield

Specialized dynamical properties of promiscuous residues revealed by simulated conformational ensembles

The ability to interact with different partners is one of the most important features in proteins. Proteins that bind a large number of partners (hubs) have been often associated with intrinsic disorder. However, many examples exist of hubs with an ordered structure, and evidence of a general mechanism promoting promiscuity in ordered proteins is still elusive. An intriguing hypothesis is that promiscuous binding sites have specific dynamical properties, distinct from the rest of the interface and pre-existing in the protein isolated state. Here, we present the first comprehensive study of the intrinsic dynamics of promiscuous residues in a large protein data set. Different computational methods, from coarse-grained elastic models to geometry-based sampling methods and to full-atom Molecular Dynamics simulations, were used to generate conformational ensembles for the isolated proteins. The flexibility and dynamic correlations of interface residues with a different degree of binding promiscuity were calculated and compared considering side chain and backbone motions, the latter both on a local and on a global scale. The study revealed that (a) promiscuous residues tend to be more flexible than nonpromiscuous ones, (b) this additional flexibility has a higher degree of organization, and (c) evolutionary conservation and binding promiscuity have opposite effects on intrinsic dynamics. Findings on simulated ensembles were also validated on ensembles of experimental structures extracted from the Protein Data Bank (PDB). Additionally, the low occurrence of single nucleotide polymorphisms observed for promiscuous residues indicated a tendency to preserve binding diversity at these positions. A case study on two ubiquitin-like proteins exemplifies how binding promiscuity in evolutionary related proteins can be modulated by the fine-tuning of the interface dynamics. The interplay between promiscuity and flexibility highlighted here can inspire new directions in protein-protein interaction prediction and design methods. © 2013 American Chemical Society

Boundary spanning as identity work in university business engagement roles

The study explores how boundary-spanning is carried out to further community engagement in 15 universities of differing sizes/ages across the United Kingdom. Fifteen interviewees participated in a series of four semi-structured interviews, aged between 35–50 and with a first degree (with almost half with an MSc). One third were women. All managed their own teams and felt these were their base in negotiating difficult internal territory.. Here, boundary spanning is found to be synonymous with identity work, carried out to enable individuals to adapt to different internal and external conditions and requirements through processes of interaction and learning. It also suggests the strategic construction of identities to address perceived threats and insecurities - and the impacts of change, dominant organisational discourse and senior management on this process. Their job titles were not useful as identity badges to signal meaning, due to these being outside ‘what universities are for’

Mass Media Influence Spreading in Social Networks with Community Structure

We study an extension of Axelrod's model for social influence, in which cultural drift is represented as random perturbations, while mass media are introduced by means of an external field. In this scenario, we investigate how the modular structure of social networks affects the propagation of mass media messages across the society. The community structure of social networks is represented by coupled random networks, in which two random graphs are connected by intercommunity links. Considering inhomogeneous mass media fields, we study the conditions for successful message spreading and find a novel phase diagram in the multidimensional parameter space. These findings show that social modularity effects are of paramount importance in order to design successful, cost-effective advertising campaigns.Comment: 21 pages, 9 figures. To appear in JSTA