scholarly journals DyEgoVis: Visual Exploration of Dynamic Ego-Network Evolution

2021 ◽  
Vol 11 (5) ◽  
pp. 2399
Author(s):  
Kun Fu ◽  
Tingyun Mao ◽  
Yang Wang ◽  
Daoyu Lin ◽  
Yuanben Zhang ◽  
...  

Ego-network, which can describe relationships between a focus node (i.e., ego) and its neighbor nodes (i.e., alters), often changes over time. Exploring dynamic ego-networks can help users gain insight into how each ego interacts with and is influenced by the outside world. However, most of the existing methods do not fully consider the multilevel analysis of dynamic ego-networks, resulting in some evolution information at different granularities being ignored. In this paper, we present an interactive visualization system called DyEgoVis which allows users to explore the evolutions of dynamic ego-networks at global, local and individual levels. At the global level, DyEgoVis reduces dynamic ego-networks and their snapshots to 2D points to reveal global patterns such as clusters and outliers. At the local level, DyEgoVis projects all snapshots of the selected dynamic ego-networks onto a 2D space to identify similar or abnormal states. At the individual level, DyEgoVis utilizes a novel layout method to visualize the selected dynamic ego-network so that users can track, compare and analyze changes in the relationships between the ego and alters. Through two case studies on real datasets, we demonstrate the usability and effectiveness of DyEgoVis.

Teen Spirit ◽  
2020 ◽  
pp. 132-143
Author(s):  
Paul Howe

This chapter assesses how the pervasive influence of the adolescent character provides insight into the workings of another sector of modern life relevant to us all: the economy. Less of a collective undertaking than politics, economic activity is guided primarily by individual decisions and actions in the free market system; so many of the relevant effects are seen first and foremost at the individual level. But these individual effects can multiply and cascade to generate patterns that do have important consequences for the general economic and social fabric. Emotions, misperceptions, intangible costs and benefits, influenced in many instances by underlying character traits, lead people to act in ways that the traditional models do not anticipate. As in other fields, it is only recently that some researchers have started to link personality to economic behavior in interesting and enlightening ways to dig deeper into what makes people tick when it comes to economic decision making and activity. When we combine some of these findings with ideas about the changing contours of character in the adolescent society, we can develop new understandings of some of the more salient economic trends of the past number of years.


Author(s):  
Henrik Oscarsson ◽  
Lauri Rapeli

Political sophistication refers to the role of expertise and the use of information in the forming of political judgments. Citizens in a democracy need a sufficient level of political sophistication to make sense of politics and to hold office holders accountable. Most people do not seem to be as sophisticated as theory would expect, and political sophistication also seems to be very unevenly spread among individuals. The consequences for democratic governance continue to be a matter of much scholarly debate. Although most researchers agree that sophistication among citizens tends to be low, many issues in the research field are deeply contested. First, several concepts such as awareness, sophistication, and knowledge are used more or less interchangeably in analyses of the political competence of citizens. It is, however, unclear whether the terminology conceals essential conceptual differences. Second, the empirical strategy of using surveys to measure sophistication has been heavily criticized. For some, the survey is an unsuitable method because it measures the respondents’ ability to produce correct answers under suboptimal conditions, rather than measuring what they actually know about politics. For others, the survey questions themselves are an inadequate measure of sophistication. Third, it is not clear what the effects of citizens’ political sophistication or lack thereof are on democratic governance. According to one group of scholars, the aggregated opinions and electoral choices of democratic publics would not look very different even if they were more sophisticated. The opponents of this low-information rationality theorem claim that increases in citizens’ sophistication would lead to substantial differences in democratic output. In other words, perceptions of the significance of sophistication for democracy deeply divide scholars working in the field. There is less disagreement concerning the individual-level determinants of sophistication. Although being male, well educated, and in a socially advantaged position still stand out as the strongest predictors of high sophistication, recent findings provide a more nuanced understanding of how sophistication is distributed among citizens. In addition to many enduring disputes, some questions remain largely unanswered. Without cross-nationally standardized survey items, scholars have struggled to conduct comparative studies of political sophistication. Therefore, role of political institutions as facilitators of political sophistication is to some extent uncertain. Whether and how sophistication changes over time are equally important, but mostly unexplored, questions.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Marieke van den Brink

Purpose The purpose of this paper is to advance knowledge of organizational change towards diversity by bringing together concepts from organizational learning and diversity studies. Design/methodology/approach This longitudinal study was conducted over two years. It involved interviews, observation of meetings and consultation of documentation and the analysis focused on organizational learning. The key research question was how do organizational members institutionalize their individual learning process to change in organizational cultures, routines and structures in a sustainable way? Findings The results showed that there had been learning at the individual level but this did not necessarily mean that participants had been able to transfer their learning into behaviour change. Research limitations/implications The research suggested that training alone may not be sufficient to promote effective organizational change regarding diversity. Additional measures are likely to be required, for example, including diversity targets in performance management plans and reviews. Practical implications In order to achieve greater diversity, organizations are likely to need to use a number of methods to supplement initial training. Social implications This research gives insight into how greater diversity may be achieved in organizations. Originality/value Previous literature understates the complexity of the change processes for enhanced diversity to be sustained in organizations. This study has originality in its focus on organizational learning.


2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Babs Broekema ◽  
Menno Fenger ◽  
Jeroen van der Waal

PurposeThis article aims to explore whether and how economic, political and demographic municipal conditions shape citizens' attitudes regarding decentralised social policies.Design/methodology/approachThe authors analysed the 2018 wave of the Dutch Local Election Studies, which includes a novel survey item asking respondents whether they prefer local social policies to be primarily: (1) protection-based, (2) cohesion-building or (3) activation-based. The authors appended context indicators to that survey and performed multilevel logistic regression analyses (1,913 respondents nested in 336 municipalities).FindingsAt the individual level, these preferences are affected by gender, age, income, education and political inclination, as expected. However, preferences towards local social policies are not shaped by local economic, demographic or political conditions. The authors discuss the implications of these findings for future research.Originality/valueBy using unique data, including a newly developed survey item, this study is the first to explore whether and how municipal conditions shape preferences regarding local welfare. Understanding those preferences is increasingly important as many Western European countries have decentralised swathes of social policies from the national to the local level in recent decades.


2016 ◽  
Vol 37 (2) ◽  
pp. 372-392 ◽  
Author(s):  
Philipp Grunau

Purpose – Many contributions to the educational mismatch literature address the productivity effects of both excess and deficit educational attainments for workers at the individual level. Due to the limited transferability of their results to establishment-level performance, especially when allowing for the possibility of spillover effects from mismatched workers to their well-matched colleagues, from an employer’s point of view, it is highly important to know the net effect of educationally mismatched employees on productivity at the establishment level. The paper aims to discuss these issues. Design/methodology/approach – This paper analyses the impact of overeducated and undereducated workers among an establishment’s workforce on its productivity, providing first representative evidence for Germany. Using linked employer-employee data from Germany, the author estimates dynamic panel production functions using a system GMM estimator. Findings – The author finds that undereducated workers among an establishment’s workforce impair its (establishment-level) productivity, implying that an establishment’s HR management should avoid the recruitment of undereducated workers, at least if they follow a short-term personnel policy. The effect for overeducated employees is also negative, albeit small and insignificant. Originality/value – The consideration of the phenomena of over and undereducation from the employer’s point of view provides further insight into the consequences of educational mismatch.


2013 ◽  
Vol 1 (1) ◽  
pp. 19-24 ◽  
Author(s):  
Adriana Modesto ◽  
Ophir Klein ◽  
Livia M.A. Tenuta ◽  
Raquel F. Gerlach ◽  
Alexandre R. Vieira

Characteristics of enamel may influence or modulate individual susceptibility to caries and erosion. These characteristics are defined during development, which is under strict genetic control, but can easily be modified in many ways by environmental factors. In the symposium, translational aspects of embryology, biochemistry, and genetics of amelogenesis were presented. The symposium provided unique insight into how basic sciences integrate with clinically relevant problems. The need for improved understanding of risks at the individual level, taking into consideration both environmental exposures and genetic background, was presented. The symposium was divided into four stepwise and interconnected topics as follows:  1) The Many Faces of Enamel Development; 2) Enamel Pathogenesis: Biochemistry Lessons; 3) Environmental Factors on Enamel Formation; and, 4) Genetic Variation in Enamel Formation Genes.


2021 ◽  
Vol 288 (1957) ◽  
pp. 20211129
Author(s):  
Darren P. Croft ◽  
Michael N. Weiss ◽  
Mia L. K. Nielsen ◽  
Charli Grimes ◽  
Michael A. Cant ◽  
...  

Mounting evidence suggests that patterns of local relatedness can change over time in predictable ways, a process termed kinship dynamics. Kinship dynamics may occur at the level of the population or social group, where the mean relatedness across all members of the population or group changes over time, or at the level of the individual, where an individual's relatedness to its local group changes with age. Kinship dynamics are likely to have fundamental consequences for the evolution of social behaviour and life history because they alter the inclusive fitness payoffs to actions taken at different points in time. For instance, growing evidence suggests that individual kinship dynamics have shaped the evolution of menopause and age-specific patterns of helping and harming. To date, however, the consequences of kinship dynamics for social evolution have not been widely explored. Here we review the patterns of kinship dynamics that can occur in natural populations and highlight how taking a kinship dynamics approach has yielded new insights into behaviour and life-history evolution. We discuss areas where analysing kinship dynamics could provide new insight into social evolution, and we outline some of the challenges in predicting and quantifying kinship dynamics in natural populations.


2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Amit Kaushal ◽  
Laurence Katznelson ◽  
Robert A. Harrington

Abstract Monitoring and managing resident workload is a cornerstone of policy in graduate medical education, and the duty hours metric is the backbone of current regulations. While the duty hours metric measures hours worked, it does not capture differences in intensity of work completed during those hours, which may independently contribute to fatigue and burnout. Few such metrics exist. Digital data streams generated during the usual course of hospital operations can serve as a novel source of insight into workload intensity by providing high-resolution, minute-by-minute data at the individual level; however, study and use of these data streams for workload monitoring has been limited to date. Paging data is one such data stream. In this work, we analyze over 500,000 pages—two full years of pages in an academic internal medicine residency program—to characterize paging patterns among housestaff. We demonstrate technical feasibility, validity, and utility of paging burden as a metric to provide insight into resident workload beyond duty hours alone, and illustrate a general framework for evaluation and incorporation of novel digital data streams into resident workload monitoring.


Urban History ◽  
2017 ◽  
Vol 45 (4) ◽  
pp. 595-615 ◽  
Author(s):  
SIMON MORGAN

ABSTRACT:Civic pride is rarely studied at the individual level. The journals of Dr John Deakin Heaton provide a unique insight into the motivations of a man linked to many institutions and civic sites of Leeds, celebrated by historians as a progenitor of its famous town hall and the city's first university. This article uses those journals to investigate the matrix of family honour, Anglicanism and professional identity, tempered by self-interest, underpinning Heaton's desire to improve his native town. Its conclusions further justify the recent historiographical emphasis on associational culture and ritual in the study of urban governance.


BMJ Open ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. e023094 ◽  
Author(s):  
Shai Mulinari ◽  
Piotr Ozieranski

ObjectivesTo analyse the section of Disclosure UK that pertains to healthcare professionals (HCPs) in order to provide insight into the database’s structure and content and suggest ways to improve its transparency.Design and participantsCohort study of drug companies and HCPs in the 2015 and 2016 versions of Disclosure UK.ResultsCompanies report transfers of value (ToVs) to named HCPs or, where an HCP declines to consent, in aggregate. Only a limited number of variables describe the recipient HCP and the ToV, precluding refined analyses. In 2015, 107 companies reported 54 910 ToVs worth ₤50 967 728. In 2016, 109 companies reported ToVs but spending decreased by 7.3%. The spending was concentrated: the top 10 spenders reported about 50% of the total value, with consultancy-related payments comprising over 70%, and the rest being costs for events. In 2015, 55.5% (30 478) of ToVs worth ₤24 428 619 (47.9%) were disclosed at the individual HCP level, increasing to 64.5% (32 407) and ₤28 145 091 (59.2%) in 2016. Despite increased individual-level disclosure in 2016, the median number of ToVs reported by each company at the individual level was only 57.7%, with 25% of companies reporting less than 38.6%. We found little agreement (62%–48% in 2015 and 46%–30% in 2016) between HCP consent rates that we calculated based on information in the database and those provided by companies.ConclusionsKey deficiencies in Disclosure UK include: insufficient information on payments and recipients, a relatively low HCP consent rate for individual-level disclosure, differences in consent rates across companies and payment types, and reporting ambiguities or inconsistencies. We employ these findings to develop recommendations for improving transparency, including an easily interpretable consent rate statistic that allows for comparison across years, firms and countries. If deficiencies remain unresolved, the UK should consider introducing legislation requiring mandatory disclosure to allow for adequate tracking of industry payments.


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