scholarly journals Article: Watching people decide: decision prediction using heatmaps of reading a decision-support document

2021 ◽  
Author(s):  
Sucheta Ghosh ◽  
Pamela Wronski
Keyword(s):  
Minority Group ◽  
Hierarchical Cluster ◽  
Eye Tracker ◽  
Pairwise Correlation ◽  
Majority Group ◽  
Single Feature ◽  
Reading Patterns ◽  
The Individual ◽  
Number Of Individuals ◽  
Health Policymaking

Introduction: Previous studies show that reading behavior varies with the readers’ Levels of Expertise (LoE) in a task area. Except for LoE, other factors like acquired information plays a role in this process. In the area of health policymaking, people read supporting documents to inform their decisions. This leads to a natural question: could it be possible to predict the decisions based on the reading pattern of the supporting document on top of their LoE? Method: We collected eye tracker data from a group of people with various LoE. We used the heatmaps as the primary pattern of reading. These were prepared using the average fixation duration of the individuals. First, we performed a hierarchical cluster analysis with the pairwise correlation matrix between the heatmaps, to see whether heatmaps as A single feature were effective to reach our goal. In the second step, we made an ensemble of the features of the reading patterns from the heatmaps and pupillometric features, and LoE, with the decision made by the participants as an outcome, using AdaBoost regressor. In this decision-making task, one could choose one among expensive, prudent, and midway. Result: The first analysis reveals to us that there are a minority number of individuals who read less than the majority group. This minority group tends to make decisions in the extremities. The result of AdaBoost-regressor, shows us 1. the LoE is a stronger feature than the patterns of reading to predict the decision to be taken. 2. the pupillometric features are weaker feature than the reading patterns from the heatmaps for our task. Conclusion: Reading patterns could be useful for forecasting a decision, given the LoE of the individual. Heatmaps can be used as both qualitative and quantitative measures for reading patterns.

scholarly journals Understanding and Promoting Racial Diversity in Healthcare Settings to Address Disparities in Pandemic Crisis Management

2021 ◽  
Vol 12 ◽  
pp. 215013272110183
Author(s):  
Azza Sarfraz ◽  
Zouina Sarfraz ◽  
Alanna Barrios ◽  
Kuchalambal Agadi ◽  
Sindhu Thevuthasan ◽  
...  
Keyword(s):  
United States ◽  
Health Disparities ◽  
Racial Discrimination ◽  
Clinical Training ◽  
Minority Groups ◽  
Mental Health Problems ◽  
Minority Group ◽  
Healthcare Delivery ◽  
The United States ◽  
Majority Group

Background: Health disparities have become apparent since the beginning of the COVID-19 pandemic. When observing racial discrimination in healthcare, self-reported incidences, and perceptions among minority groups in the United States suggest that, the most socioeconomically underrepresented groups will suffer disproportionately in COVID-19 due to synergistic mechanisms. This study reports racially-stratified data regarding the experiences and impacts of different groups availing the healthcare system to identify disparities in outcomes of minority and majority groups in the United States. Methods: Studies were identified utilizing PubMed, Embase, CINAHL Plus, and PsycINFO search engines without date and language restrictions. The following keywords were used: Healthcare, raci*, ethnic*, discriminant, hosti*, harass*, insur*, education, income, psychiat*, COVID-19, incidence, mortality, mechanical ventilation. Statistical analysis was conducted in Review Manager (RevMan V.5.4). Unadjusted Odds Ratios, P-values, and 95% confidence intervals were presented. Results: Discrimination in the United States is evident among racial groups regarding medical care portraying mental risk behaviors as having serious outcomes in the health of minority groups. The perceived health inequity had a low association to the majority group as compared to the minority group (OR = 0.41; 95% CI = 0.22 to 0.78; P = .007), and the association of mental health problems to the Caucasian-American majority group was low (OR = 0.51; 95% CI = 0.45 to 0.58; P < .001). Conclusion: As the pandemic continues into its next stage, efforts should be taken to address the gaps in clinical training and education, and medical practice to avoid the recurring patterns of racial health disparities that become especially prominent in community health emergencies. A standardized tool to assess racial discrimination and inequity will potentially improve pandemic healthcare delivery.

Disability and the Urban Environment: A Perspective on Los Angeles

1986 ◽  
Vol 4 (3) ◽  
pp. 273-288 ◽  
Author(s):  
H Hahn
Keyword(s):  
Los Angeles ◽  
Sense Of Community ◽  
Minority Group ◽  
Primary Source ◽  
Disabled Persons ◽  
Social Attitudes ◽  
Geographic Dispersion ◽  
Personal Appearance ◽  
The Individual ◽  
The Impact

Increasingly, research on disability has been guided by a definition that focuses on the interaction between the individual and the environment and by a minority-group perspective based on the propositions that discriminatory attitudes are the primary source of the problems of disabled citizens, that the environment is shaped by public policy, and that policies reflect prevalent social attitudes and values. The implications of this approach for an analysis of the experience of disabled persons in Los Angeles are examined by assessing major characteristics of this urban area such as geographic dispersion, the absence of a sense of community, and the impact of pervasive standards of personal appearance. The investigation indicates a pressing need to provide increased accessibility for disabled residents to fulfill constitutional principles of freedom and equality.

Latvijas kultūrtelpa (1930–1939) vācbaltiešu pēcteču atmiņās

2021 ◽  
pp. 181-196
Author(s):  
Laila Niedre ◽  
Gunta Ošeniece
Keyword(s):  
Collective Memory ◽  
Minority Group ◽  
Social Practices ◽  
National Interests ◽  
Cultural Space ◽  
Soviet Occupation ◽  
The Individual ◽  
Project Objectives ◽  
Group Diversity ◽  
Latvian Academy

The purpose of this article is to reveal the Latvian cultural space of the 1930s, how it appears in present-day reminiscences of Baltic Germans, people with German heritage residing in Latvia, or their descendants. The data consists of extended interviews recorded as a part of the Latvian Academy of Culture project “Latvija – Heimatland” (2017–2019). One of the project objectives is to register and explore the reminiscences of this social group. The article analyses the accounts of 22 people residing in Latvia and 14 in Germany. These are accounts of events experienced either by themselves or their family members. It covers a time when the community of Latvians and Germans residing in Latvia was polarised by national interests, and the decade ended with Baltic Germans emigrating, followed by the Soviet occupation of Latvia. The Latvian cultural space of the 1930s is indirectly described by quotes from the respondents that relate to the resettlement in 1939 (Umsiedlung in German). The reminiscences illuminate cultural space components such as social practices, symbols, languages, and their use, traditions, and cuisine. The individual memories of Baltic Germans and their descendants significantly contribute to how the Latvian cultural space of the 1930s is already seen through collective memory, which includes monuments, written work, and art. They outline the lifestyle of this specific minority group, diversity of cultures, and interaction between them in Latvia, as well as a theme of Latvia as the lost motherland.

scholarly journals Comparison and Identification for Rhizomes and Leaves of Paris yunnanensis Based on Fourier Transform Mid-Infrared Spectroscopy Combined with Chemometrics

Molecules ◽  
2018 ◽  
Vol 23 (12) ◽  
pp. 3343 ◽  
Author(s):  
Yi-Fei Pei ◽  
Qing-Zhi Zhang ◽  
Zhi-Tian Zuo ◽  
Yuan-Zhong Wang
Keyword(s):  
Fourier Transform ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Chemical Information ◽  
Accurate Identification ◽  
Mid Infrared ◽  
Model Classification ◽  
Paris Polyphylla ◽  
Mir Spectra ◽  
The Individual

Paris polyphylla, as a traditional herb with long history, has been widely used to treat diseases in multiple nationalities of China. Nevertheless, the quality of P. yunnanensis fluctuates among from different geographical origins, so that a fast and accurate classification method was necessary for establishment. In our study, the geographical origin identification of 462 P. yunnanensis rhizome and leaf samples from Kunming, Yuxi, Chuxiong, Dali, Lijiang, and Honghe were analyzed by Fourier transform mid infrared (FT-MIR) spectra, combined with partial least squares discriminant analysis (PLS-DA), random forest (RF), and hierarchical cluster analysis (HCA) methods. The obvious cluster tendency of rhizomes and leaves FT-MIR spectra was displayed by principal component analysis (PCA). The distribution of the variable importance for the projection (VIP) was more uniform than the important variables obtained by RF, while PLS-DA models obtained higher classification abilities. Hence, a PLS-DA model was more suitably used to classify the different geographical origins of P. yunnanensis than the RF model. Additionally, the clustering results of different geographical origins obtained by HCA dendrograms also proved the chemical information difference between rhizomes and leaves. The identification performances of PLS-DA and the RF models of leaves FT-MIR matrixes were better than those of rhizomes datasets. In addition, the model classification abilities of combination datasets were higher than the individual matrixes of rhizomes and leaves spectra. Our study provides a reference to the rational utilization of resources, as well as a fast and accurate identification research for P. yunnanensis samples.

scholarly journals Power analysis in a SMART design: sample size estimation for determining the best embedded dynamic treatment regime

Biostatistics ◽  
2018 ◽  
Vol 21 (3) ◽  
pp. 432-448 ◽  
Author(s):  
William J Artman ◽  
Inbal Nahum-Shani ◽  
Tianshuang Wu ◽  
James R Mckay ◽  
Ashkan Ertefaie
Keyword(s):  
Power Analysis ◽  
Ad Hoc ◽  
Treatment Effectiveness ◽  
R Package ◽  
Treatment Regime ◽  
Size Estimation ◽  
Dynamic Treatment Regime ◽  
Dynamic Treatment ◽  
The Individual ◽  
Number Of Individuals

Summary Sequential, multiple assignment, randomized trial (SMART) designs have become increasingly popular in the field of precision medicine by providing a means for comparing more than two sequences of treatments tailored to the individual patient, i.e., dynamic treatment regime (DTR). The construction of evidence-based DTRs promises a replacement to ad hoc one-size-fits-all decisions pervasive in patient care. However, there are substantial statistical challenges in sizing SMART designs due to the correlation structure between the DTRs embedded in the design (EDTR). Since a primary goal of SMARTs is the construction of an optimal EDTR, investigators are interested in sizing SMARTs based on the ability to screen out EDTRs inferior to the optimal EDTR by a given amount which cannot be done using existing methods. In this article, we fill this gap by developing a rigorous power analysis framework that leverages the multiple comparisons with the best methodology. Our method employs Monte Carlo simulation to compute the number of individuals to enroll in an arbitrary SMART. We evaluate our method through extensive simulation studies. We illustrate our method by retrospectively computing the power in the Extending Treatment Effectiveness of Naltrexone (EXTEND) trial. An R package implementing our methodology is available to download from the Comprehensive R Archive Network.

scholarly journals Psychophysiological features of fighters of different tactical styles of conducting competitive duels

2019 ◽  
Vol 5 (3) ◽  
pp. 63
Author(s):  
G.O. Ogar ◽  
E.I. Lewandowski
Keyword(s):  
Cluster Analysis ◽  
Hierarchical Cluster Analysis ◽  
Hierarchical Cluster ◽  
Test Results ◽  
Time Switching ◽  
The Individual ◽  
Switching Attention ◽  
Individual Training

<p><strong>Objective</strong>: To determine the psychophysiological features of skilled freestyle wrestlers with different tactical ways of fighting.</p><p><strong>Materials and Methods</strong>: The study involved 15 freestyle wrestlers who are students of the H.S. Skovoroda Kharkiv National Pedagogical University.  The athletes had experience in free-wrestling from 5 to 7 years, qualification of the  Meister kandidat (n = 6) and the 1st sports category (n = 9), age of the examinees - 17-21 years. With the help of V. Schulte's technique, testing of stability of attention and dynamics of efficiency of fighters was carried out. The indicators of switching and distribution of attention of the investigated by the method of FD were also tested. Humpback. A hierarchical cluster analysis of psychophysiological test results was conducted, according to which the investigated fighters were divided into two groups.</p><p> <strong>Results</strong>: According to the results of testing psychophysiological indicators, some differences were found between the groups. Cluster analysis of testing results of psychophysiological features of freestyle wrestlers divided the studied athletes into two groups. The first group includes fighters who lead competitive duels against defense, using mostly counter-attacks (defensive, counter-attacking style of conducting a competitive duel). The second group of investigated fighters included athletes, who are fighting in an active style (attacking style of running a competitive fight). The wrestlers of the second group, in terms of performance (p &lt;0.001) outperform the athletes of the first group. The first group studied showed a better time switching attention than their opponents (p&lt;0.05).</p><p><strong>Conclusions</strong>: The results of the study can be used in the individual training of fighters to determine the optimal tactical manner of the fight for specific athletes.</p>

scholarly journals When psychological contract is violated: Revisiting the Rejection-Disidentification Model of immigrant integration

2018 ◽  
Vol 6 (2) ◽  
pp. 484-510 ◽  
Author(s):  
Inga Jasinskaja-Lahti ◽  
Göksu Celikkol ◽  
Tuuli Anna Renvik ◽  
Viivi Eskelinen ◽  
Raivo Vetik ◽  
...  
Keyword(s):  
Psychological Contract ◽  
Minority Group ◽  
Ethnic Discrimination ◽  
Immigrant Integration ◽  
Russian Speakers ◽  
Majority Group ◽  
The Social ◽  
Comparative Survey ◽  
Majority Groups ◽  
Perceived Ethnic Discrimination

In this study, we investigated how perceived ethnic discrimination is related to attitudes towards the national majority group and willingness to confront injustice to promote the social standing of a minority group. We examined this relationship via two mediating factors; national (dis)identification from and out-group (dis)trust of the national majority group. The Rejection-Disidentification Model (RDIM) was refined, first, to account for willingness to confront injustice as a consequence of perceived rejection, and second, intergroup (dis)trust was examined as an additional mediating mechanism that can explain attitudinal and behavioural reactions to perceived rejection simultaneously with national disidentification. The model was tested in a comparative survey data of Russian-speaking minority in Estonia (N = 482), Finland (N = 254), and Norway (N = 219). In all three countries, the more Russian-speakers identified as Russians and the more they perceived ethnic discrimination, the more negative were their attitudes toward the national majority groups and the more willing they were to engage in action to confront group-based injustice. Whereas disidentification from and distrust of national majority group accounted for the discrimination-attitude link to a large extent, both factors had demobilizing effects on willingness to confront injustice, making Russian-speaking immigrants more passive but hostile. The findings are discussed in relation to the risks involved in politicization of immigrants struggling with perceived inequalities.

scholarly journals Free to move or trapped in your group: Mathematical modeling of information overload and coordination in crowded populations

2018 ◽  
Vol 28 (09) ◽  
pp. 1831-1856 ◽  
Author(s):  
Alessandro Ciallella ◽  
Emilio N. M. Cirillo ◽  
Petru L. Curşeu ◽  
Adrian Muntean
Keyword(s):  
Information Processing ◽  
Population Size ◽  
Information Overload ◽  
Interpersonal Attraction ◽  
Social Systems ◽  
Square Lattice ◽  
Coordination Costs ◽  
The Individual ◽  
Computational Resources ◽  
Number Of Individuals

We present modeling strategies that describe the motion and interaction of groups of pedestrians in obscured spaces. We start off with an approach based on balance equations in terms of measures and then we exploit the descriptive power of a probabilistic cellular automaton model.Based on a variation of the simple symmetric random walk on the square lattice, we test the interplay between population size and an interpersonal attraction parameter for the evacuation of confined and darkened spaces. We argue that information overload and coordination costs associated with information processing in small groups are two key processes that influence the evacuation rate. Our results show that substantial computational resources are necessary to compensate for incomplete information — the more individuals in (information processing) groups the higher the exit rate for low population size. For simple social systems, it is likely that the individual representations are not redundant and large group sizes ensure that this non-redundant information is actually available to a substantial number of individuals. For complex social systems, information redundancy makes information evaluation and transfer inefficient and, as such, group size becomes a drawback rather than a benefit. The effect of group sizes on outgoing fluxes, evacuation times and wall effects is carefully studied with a Monte Carlo framework accounting also for the presence of an internal obstacle.

scholarly journals Full Access to Cultural Spaces (FACS): Mapping and evaluating museum access services using mobile eye-tracking technology

Ars Aeterna ◽  
2017 ◽  
Vol 9 (2) ◽  
pp. 18-38
Author(s):  
Francesca Raffi
Keyword(s):  
Eye Tracking ◽  
Universal Access ◽  
Special Focus ◽  
Eye Tracker ◽  
National Cinema ◽  
Museum Visitors ◽  
Cultural Spaces ◽  
Reading Patterns ◽  
The University ◽  
Access Services

Abstract The present paper aims to present significant results stemming from the FACS (Full Access to Cultural Spaces) project, launched in 2014 by the University of Macerata and concluded in 2016. In particular, this paper reports on stages one and two of the FACS project which aimed first to explore the state of the art of universal access services across a large variety of museums in Italy and nine other EU countries. Based on the first stage, an analysis of some of the most significant data obtained from a questionnaire sent out to over 1,200 European museums will be presented, with a special focus on multilingual devices and access services for the sensory impaired. The first stage was followed by an eye-tracking study on an Italian museum, Turin’s Museo Nazionale del Cinema (National Cinema Museum), aimed at evaluating visitors’ experience, attitudes and patterns of fruition through a test with a portable eye tracker (Tobii Pro Glasses 2, 50 Hz). Based on this second stage, the fruition of information panels by museum visitors at the Museo Nazionale del Cinema will be explored, specifically focusing on reading patterns and behaviours.

scholarly journals Interethnic Relations in a Changing Political Context

2005 ◽  
Vol 68 (4) ◽  
pp. 375-386 ◽  
Author(s):  
Maykel Verkuyten ◽  
Katarzyna Zaremba
Keyword(s):  
Minority Groups ◽  
Minority Group ◽  
Ethnic Relations ◽  
Rapid Rise ◽  
Ethnic Minority Groups ◽  
Interethnic Relations ◽  
Cross Sectional ◽  
Majority Group ◽  
Group Members ◽  
Multiple Groups

The aim of this study was to examine evaluations of multiple groups by both ethnic majority-group (Dutch) and minority-group (Turkish-Dutch) members during a turbulent political period in the Netherlands, marked by the rapid rise and subsequent decline of a new-rightist, populist movement. The analysis of cross-sectional data from three periods (2001 to 2003) showed clear changes in these evaluations. As expected, both the Dutch and the Turkish participants showed higher ingroup identification and ingroup evaluation in 2002 than in 2001 and 2003. In addition, in 2002 the Dutch participants evaluated the Islamic outgroups (Turks and Moroccans) more negatively, whereas their evaluation of other ethnic minority groups did not differ across the three years. In contrast, Turkish participants evaluated all ethnic outgroups, including the Dutch and the Moroccans, more negatively in 2002. We conclude that it is important to study ethnic relations across time, in relation to political circumstances, from the perspective of both majority- and minority-group members, and in relation to different ethnic outgroups.

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