Accessible smartphones for blind users: A case study for a wayfinding system

2014 ◽  
Vol 41 (16) ◽  
pp. 7210-7222 ◽  
Author(s):  
M.C. Rodriguez-Sanchez ◽  
M.A. Moreno-Alvarez ◽  
E. Martin ◽  
S. Borromeo ◽  
J.A. Hernandez-Tamames
Keyword(s):  
Blind Users

Designing Mobile Multimodal Applications

2010 ◽  
pp. 106-135 ◽  
Author(s):  
Marco de Sá ◽  
Carlos Duarte ◽  
Luís Carriço ◽  
Tiago Reis
Keyword(s):  
Quantitative Analysis ◽  
Mobile Application ◽  
Early Stage ◽  
Evaluation Process ◽  
Scenario Generation ◽  
Blind Users ◽  
Digital Books ◽  
Support Evaluation

In this chapter we describe a set of techniques and tools that aim at supporting designers while creating mobile multimodal applications. We explain how the additional difficulties that designers face during this process, especially those related to multimodalities, can be tackled. In particular, we present a scenario generation and context definition framework that can be used to drive design and support evaluation within realistic settings, promoting in-situ design and richer results. In conjunction with the scenario framework, we detail a prototyping tool that was developed to support the early stage prototyping and evaluation process of mobile multimodal applications, from the first sketch-based prototypes up to the final quantitative analysis of usage results. As a case study, we describe a mobile application for accessing and reading rich digital books. The application aims at offering users, in particular blind users, means to read and annotate digital books and it was designed to be used on Pocket PCs and Smartphones, including a set of features that enhance both content and usability of traditional books.

Hedonic Utility Scale (HED/UT) Modified as a User Experience Evaluation Method of Performing Talkback Tutorial for Blind People

2020 ◽  
pp. 62-77
Author(s):  
Eduardo Emmanuel Rodríguez López ◽  
Jean Sandro Chery ◽  
Teresita de Jesús Álvarez Robles ◽  
Francisco Javier Álvarez Rodríguez
Keyword(s):  
User Experience ◽  
Evaluation Method ◽  
Blind People ◽  
Blind Users ◽  
Utility Scale ◽  
The Way

Hedonic utility scale is a user experience (UX) evaluation method that, through a questionnaire, collects the hedonic and utilitarian dimensions of a product by rating items belonging to each dimension. In this chapter, it is proposed to adapt this method for its application with blind users using the Google TalkBack tutorial as a case study. Based on Nielsen's heuristics, five blind users rated the tutorial after completing each of its five tasks. To ensure inclusiveness in the adaptation of the method, this could be answered verbally and with the use of cards written in Braille, while, for questions of practicality in the evaluation, the number of items was reduced as well as changed the way of scoring (scale and equations) with respect to the original HED/UT. The scale of grades was ranked from 1 (very little) to 5 (quite), getting TalkBack scores between 4 and 5. The results show that the TalkBack tutorial is generally well accepted and well rated by users in both dimensions (hedonic and utility).

scholarly journals Improving search engine interfaces for blind users: a case study

2006 ◽  
Vol 5 (1) ◽  
pp. 23-40 ◽  
Author(s):  
Patrizia Andronico ◽  
Marina Buzzi ◽  
Carlos Castillo ◽  
Barbara Leporini
Keyword(s):  
Search Engine ◽  
Blind Users

The Genesis and Internal Dynamics of El Salvador's People's Revolutionary Army, 1970–1976

2014 ◽  
Vol 38 (01) ◽  
pp. 102-129
Author(s):  
ALBERTO MARTÍN ÁLVAREZ ◽  
EUDALD CORTINA ORERO
Keyword(s):  
Latin America ◽  
El Salvador ◽  
Early Years ◽  
Left Wing ◽  
Internal Dynamics ◽  
Internal Coherence ◽  
The 1960S

AbstractUsing interviews with former militants and previously unpublished documents, this article traces the genesis and internal dynamics of the Ejército Revolucionario del Pueblo (People's Revolutionary Army, ERP) in El Salvador during the early years of its existence (1970–6). This period was marked by the inability of the ERP to maintain internal coherence or any consensus on revolutionary strategy, which led to a series of splits and internal fights over control of the organisation. The evidence marshalled in this case study sheds new light on the origins of the armed Salvadorean Left and thus contributes to a wider understanding of the processes of formation and internal dynamics of armed left-wing groups that emerged from the 1960s onwards in Latin America.

Culture and the plasticity of perception

2020 ◽  
Vol 43 ◽  
Author(s):  
Michael Lifshitz ◽  
T. M. Luhrmann
Keyword(s):  
Cultural Context ◽  
Sensory Experience ◽  
Cultural Learning ◽  
The World

Abstract Culture shapes our basic sensory experience of the world. This is particularly striking in the study of religion and psychosis, where we and others have shown that cultural context determines both the structure and content of hallucination-like events. The cultural shaping of hallucinations may provide a rich case-study for linking cultural learning with emerging prediction-based models of perception.

Dual systems for all: Higher-order, role-based relational reasoning as a uniquely derived feature of human cognition

2019 ◽  
Vol 42 ◽  
Author(s):  
Daniel J. Povinelli ◽  
Gabrielle C. Glorioso ◽  
Shannon L. Kuznar ◽  
Mateja Pavlic
Keyword(s):  
Temporal Reasoning ◽  
Higher Order ◽  
Important Case ◽  
Human Cognition ◽  
Relational Reasoning ◽  
Dual Systems ◽  
First Order ◽  
Reasoning System ◽  
Role Based

Abstract Hoerl and McCormack demonstrate that although animals possess a sophisticated temporal updating system, there is no evidence that they also possess a temporal reasoning system. This important case study is directly related to the broader claim that although animals are manifestly capable of first-order (perceptually-based) relational reasoning, they lack the capacity for higher-order, role-based relational reasoning. We argue this distinction applies to all domains of cognition.

Sociocultural memory development research drives new directions in gadgetry science

2019 ◽  
Vol 42 ◽  
Author(s):  
Penny Van Bergen ◽  
John Sutton
Keyword(s):  
Episodic Memory ◽  
Autobiographical Memory ◽  
Developmental Psychology ◽  
Cross Cultural ◽  
Memory Development ◽  
Development Research ◽  
Cultural Research ◽  
New Directions ◽  
Cross Cultural Research

Abstract Sociocultural developmental psychology can drive new directions in gadgetry science. We use autobiographical memory, a compound capacity incorporating episodic memory, as a case study. Autobiographical memory emerges late in development, supported by interactions with parents. Intervention research highlights the causal influence of these interactions, whereas cross-cultural research demonstrates culturally determined diversity. Different patterns of inheritance are discussed.

Construction of plastic contact deformation maps on ceramics: a case study on aluminum nitride

1996 ◽  
Vol 54 ◽  
pp. 636-637
Author(s):  
D. L. Callahan
Keyword(s):  
Plastic Deformation ◽  
Aluminum Nitride ◽  
Mechanical Response ◽  
Three Dimensional ◽  
Bright Field Image ◽  
Perfectly Plastic ◽  
Contrast Analysis ◽  
Deformation Patterns

Modern polishing, precision machining and microindentation techniques allow the processing and mechanical characterization of ceramics at nanometric scales and within entirely plastic deformation regimes. The mechanical response of most ceramics to such highly constrained contact is not predictable from macroscopic properties and the microstructural deformation patterns have proven difficult to characterize by the application of any individual technique. In this study, TEM techniques of contrast analysis and CBED are combined with stereographic analysis to construct a three-dimensional microstructure deformation map of the surface of a perfectly plastic microindentation on macroscopically brittle aluminum nitride.The bright field image in Figure 1 shows a lg Vickers microindentation contained within a single AlN grain far from any boundaries. High densities of dislocations are evident, particularly near facet edges but are not individually resolvable. The prominent bend contours also indicate the severity of plastic deformation. Figure 2 is a selected area diffraction pattern covering the entire indentation area.

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