The Role of Visual Attention in Head-Up Displays: Design Implications for Varying Symbology Intensity

Author(s):  
Patricia A. May ◽  
Christopher D. Wickens

Twenty pilots from the University of Illinois flew a low fidelity simulator during cruise flight. The intensity of the display symbology was manipulated in three different weather conditions to influence the discriminability of the instrumentation. The symbology was displayed in either head-up or head-down locations, with equivalent optical distances and display formats. Half of the subjects flew with a conformal symbology set, while the other half flew with a partially conformal symbology set. Responses to near and far domain events were measured, and tracking error of the three axes of control was calculated. The results revealed a head-up advantage to the far domain event detection and a head-down advantage to the near domain event detection. Performance in the head-up condition approached that of the otherwise superior head-down condition when an appreciable contrast between the symbology and the background environment was provided. The results are discussed in terms of an effect of the modulation of focused attention.

Author(s):  
Patricia May Ververs ◽  
Christopher D. Wickens

The problems of focusing attention while using head-up displays has been noted in the literature. To examine the issue, twenty-four instrument-rated pilots from the University of Illinois flew a high-fidelity simulator during cruise flight using head-up and head-down displays. The pilots were presented with either a symbology set with the bare essentials to fly the simulation or an enhanced set of information. The intensity of the display symbology was manipulated, including a condition lowlighting non-essential flight task information. Flying with a HUD in good weather conditions provided a clear advantage to tracking performance and event detection over the head-down conditions. This result was found presumably through the extraction of attitude information from the two domains, the near symbology and the far horizon. Clutter was found to slow the detection of changes on the symbology and detection of targets in the environment. However, lowlighting the non-essential information begins to ameliorate this problem. The appropriate combination of location, intensity, and contrast modulated visual attention between the symbology and the environment and produced a win-win situation for HUDs.


Psihologija ◽  
2015 ◽  
Vol 48 (4) ◽  
pp. 327-344 ◽  
Author(s):  
Ana Slavec ◽  
Vasja Vehovar

Research into cognitive aspects of survey response has indicated unfamiliar terms as one of the psycholinguistic determinants of question comprehensibility problems. In this paper the estimates of wording familiarity based on text corpora for the English and Slovenian languages were used to detect potentially incomprehensible wordings in two web survey questionnaires for international exchange students at the University of Ljubljana, one for incoming (English) and the other for outgoing students (Slovenian). Two versions of the questionnaire were developed for each language, one with low-frequency (complex) and the other with high-frequency (improved) wordings, and compared in a split-ballot experiment. The results show a lower drop-out rate and a decreased subjective perception of difficulty for the improved language versions.


2021 ◽  
pp. 65-74
Author(s):  
Christelle HOPPE

This article presents the highlights of the learning experience within the teaching-learning scheme of French as an additional language as it was proposed to international students at the university to ensure pedagogical continuity during the health crisis between April and June 2020. Through vignettes that give an overview of the course, it proposes, on the one hand, to reflect on the pedagogical choices that were made in order to measure their effects effectively. On the other hand, it looks at the role of the tasks and the way in which they stimulate interaction, articulate or organise the cognitive, conative and socio-affective presence at a distance in this particular context. What emerges from the experience is that the flexible articulation of a set of tasks creates an organising framework that helps learners to shape their own curriculum while supporting their engagement. Overall, the pedagogical organisation of the device has led to potentially beneficial creative and socio-interactive use.


2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 275-275
Author(s):  
Patricia M Oba ◽  
Kelly S Swanson

Abstract Pork-based dog foods are increasing in popularity, but there has been a lack of research conducted on these diets, including information about their digestibility. Therefore, the objective of this experiment was to determine the true nutrient and amino acid (AA) digestibilities of commercial pork-based extruded dog foods using the precision-fed cecectomized rooster assay. Four commercial extruded diets were tested in this study, including three pork formulas (PF1; PF2; PF3) with varying levels of legume content, and a multi-protein formula (MPF), all provided by Champion Petfoods (Alberta, Canada). A precision-fed rooster assay utilizing cecectomized roosters was conducted to determine the true nutrient digestibility and standardized AA digestibilities of the diets tested. All animal procedures were approved by the University of Illinois Institutional Animal Care and Use Committee prior to experimentation. 16 cecectomized roosters (4 roosters/substrate) were randomly assigned to test substrates. After 24h of feed withdrawal, roosters were tube-fed 30g of test substrates. Following crop intubation, excreta (urine and feces) were collected for 48h. Endogenous corrections for AA were made using 5 additional cecectomized roosters. All data were analyzed using the Mixed Models procedure of SAS 9.4. There were no significant differences in true macronutrient digestibilities among diets tested. For most of the indispensable AA, digestibilities were greater than 80%, with some being greater than 90%. For the majority of indispensable and dispensable AA, MPF had higher (P < 0.05) AA digestibilities than the other diets tested. For the majority of indispensable AA, PF1 had the lowest AA digestibilities. In general, the diet containing a mixed protein source had the greatest AA digestibilities, but all diets including those based on pork protein performed well.


2003 ◽  
Vol 42 (3) ◽  
pp. 293-337 ◽  
Author(s):  
Henry Etzkowitz

Innovation is increasingly based upon a “Triple Helix” of university-industry-government interactions. The increased importance of knowledge and the role of the university in incubation of technology-based firms has given it a more prominent place in the institutional firmament. The entrepreneurial university takes a proactive stance in putting knowledge to use and in broadening the input into the creation of academic knowledge. Thus it operates according to an interactive rather than a linear model of innovation. As firms raise their technological level, they move closer to an academic model, engaging in higher levels of training and in sharing of knowledge. Government acts as a public entrepreneur and venture capitalist in addition to its traditional regulatory role in setting the rules of the game. Moving beyond product development, innovation then becomes an endogenous process of “taking the role of the other”, encouraging hybridization among the institutional spheres.


Author(s):  
Stephan De Beer

This essay is informed by five different but interrelated conversations all focusing on the relationship between the city and the university. Suggesting the clown as metaphor, I explore the particular role of the activist scholar, and in particular the liberation theologian that is based at the public university, in his or her engagement with the city. Considering the shackles of the city of capital and its twin, the neoliberal university, on the one hand, and the city of vulnerability on the other, I then propose three clown-like postures of solidarity, mutuality and prophecy to resist the shackles of culture and to imagine and embody daring alternatives.


2009 ◽  
Vol 43 (5) ◽  
pp. 1149-1187 ◽  
Author(s):  
A. J. STOCKWELL

AbstractLike so many features of the British Empire, policy for colonial higher education was transformed during the Second World War. In 1945 the Asquith Commission established principles for its development, and in 1948 the Carr–Saunders report recommended the immediate establishment of a university in Malaya to prepare for self-government. This institution grew at a rate that surpassed expectations, but the aspirations of its founders were challenged by lack of resources, the mixed reactions of the Malayan people and the politics of decolonisation. The role of the University of Malaya in engineering a united Malayan nation was hampered by lingering colonial attitudes and ultimately frustrated by differences between Singapore and the Federation. These differences culminated in the university's partition in January 1962. In the end it was the politics of nation-building which moulded the university rather than the other way round.


2017 ◽  
Vol 10 (4) ◽  
pp. 187
Author(s):  
Haya Saad Abdulla Al Rawaf ◽  
Azza Khalil Abdel Fattah ◽  
Fadia Yousif Abdel Megeid ◽  
Rania Mohammed Aziz Nazmy ◽  
Sarah Nasser Alarifi ◽  
...  

This study aims at highlighting the role of Continuous Education Programs at the Saudi Universities in Religious, Social, and Health Literacy; King Saud University was taken as an example. To achieve the goals of the study two questionnaires were distributed among two samples from King Saud University; (101) of students, and (9) of continuous education centers’ directors. Results showed that continuous education programs presented in religious awareness development do not contribute sufficiently in developing them. However; continuous education programs have favorable role in community’s social culturing. Also, continuous education programs contribute, at medium degree, in community’s health culturing. On the other hand; people in charge agree that the investment revenue in financing continuous education programs is minor as well as financing offered by the University. In light of the study results, the researchers recommended paying more attention to present more continuous education programs of concern as to individuals’ needs through cooperation with the research center in the University to perform survey studies targeted to define the individuals’ needs in terms of religious, social and health issues.


Antichthon ◽  
1983 ◽  
Vol 17 ◽  
pp. 96-106
Author(s):  
† G.P. Shipp

This version of the life of Aesop is known only from the one manuscript, which had belonged earlier to the library of a monastery near Frascati, from which it disappeared with no mention of it after 1789 till it was rediscovered in the Pierpont Morgan collection in 1929. It was published in 1952 by B.E. Perry at the University of Illinois Press (Urbana) in his fine Aesopica I, 35-77, with much other material, including a full account of the manuscripts of the other version of the life, W.MS. G is from the end of the tenth century. Perry thinks that the original goes back to the first century A.D. and reflects the strong interest in popular versions of Aesop’s life in Egypt at this period. It has a pronounced Egyptian colouring, Isis playing a prominent part in the naive and bawdy story, with a strong opposition to Apollo. Four papyrus fragments similar to G have been found (see Perry, op. cit. 1), and various Eastern versions of part of the story are known. The manuscript has many koine features that agree with Perry’s dating, and the language can often be usefully illustrated from the modern Demotic. Features that are more likely to be errors of tradition in the manuscript are mainly unimportant late spellings.


Traditio ◽  
2017 ◽  
Vol 72 ◽  
pp. 453-491 ◽  
Author(s):  
MAGDA HAYTON

This article offers a study and critical edition of a group of passages (here called the “Schism Extracts”) that were compiled from the apocalyptic prophecies of Hildegard of Bingen and heavily annotated in response to the Great Western Schism (1378–1417). The article argues that the Extracts were created by someone with ties to the University of Paris to illuminate a French perspective on the Schism and that they circulated primarily within a Parisian milieu—both among masters at the university and among members of religious houses in and around Paris. The article outlines the main contents and themes of the Extracts and the manuscript contexts in which they are found, including five prophecy collections. While one prophecy collection is known to have been compiled by the Parisian master Simon du Bosc, it is here argued that three of the other collections were produced by Pierre d'Ailly or someone within his circle of associates. Many of the prophetic writings selected for these collections thematically concern the eschatological and reformist role of France and a future holy angelic pope (the pastor angelicus). These include the writings of John of Rupescissa, and parallels between the Extracts and John's reading of Hildegard suggest that the compiler of the text was well-versed in John's apocalyptic thought.


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