scholarly journals Opening the visual methods toolbox

Author(s):  
Kate Black ◽  
Russell Warhurst
Keyword(s):  
2007 ◽  
Author(s):  
David H. Peterzell ◽  
Roberta E. Cone ◽  
Christian Carter ◽  
Alexandrea Harmell ◽  
Judy Ortega ◽  
...  

2019 ◽  
Author(s):  
Ayumu Karimata ◽  
Pradnya Patil ◽  
Eugene Khaskin ◽  
Sébastien Lapointe ◽  
robert fayzullin ◽  
...  

Direct translation of mechanical force into changes in chemical behavior on a molecular level has important implication not only for the fundamental understanding of mechanochemical processes, but also for the development of new stimuli-responsive materials. In particular, detection of mechanical stress in polymers via non-destructive methods is important in order to prevent material failure and to study the mechanical properties of soft matter. Herein, we report that highly sensitive changes in photoluminescence intensity can be observed in response to the mechanical stretching of cross-linked polymer films when using stable, (pyridinophane)Cu-based dynamic mechanophores. Upon stretching, the luminescence intensity increases in a fast and reversible manner even at small strain (< 50%) and applied stress (< 0.1 MPa) values. Such sensitivity is unprecedented when compared to previously reported systems based on organic mechanophores. The system also allows for the detection of weak mechanical stress by spectroscopic measurements or by direct visual methods.<br>


2017 ◽  
Vol 1 (20) ◽  
pp. 63-74 ◽  
Author(s):  
Arkadiusz Rychlik ◽  
Krzysztof Ligier

This paper discusses the method used to identify the process involving fatigue cracking of samples on the basis of selected vibration signal characteristics. Acceleration of vibrations has been chosen as a diagnostic signal in the analysis of sample cross section. Signal characteristics in form of change in vibration amplitudes and corresponding changes in FFT spectrum have been indicated for the acceleration. The tests were performed on a designed setup, where destruction process was caused by the force of inertia of the sample. Based on the conducted tests, it was found that the demonstrated sample structure change identification method may be applied to identify the technical condition of the structure in the aspect of loss of its continuity and its properties (e.g.: mechanical and fatigue cracks). The vibration analysis results have been verified by penetration and visual methods, using a scanning electron microscope.


Author(s):  
Ihor Lishchynskyy ◽  
Mariia Lyzun

Introduction. Under the influence of globalization and regionalization; the world economic development is becoming more dynamic but contradictory at the same time; creating new challenges and threats for both individual countries and entire regions. This exacerbates the urgency of forming flexible systems of security cooperation and finding solutions to regional and global security problems. Purpose. The purpose of the paper is to systematize research on regional and global security governance and a review of the balance of geopolitical forces in Europe. Methods. The research was carried out using the following methods: analysis and synthesis – to characterize the modern mainstream of theoretical intelligence in the field of regional security; comparative analysis – to compare the structures of regional security management in different parts of the world; deductions and inductions – to form a conceptual model of global governance; tabular and visual methods – for visual presentation of the material. Results. The paper considers theoretical approaches to the interpretation of regional security. It is noted that regional security governance is a set of institutions and activities at three levels: global; regional and national. A nomenclature of different types of regional security governance structures is presented; which includes a regional balance of power and ad hoc (informal) alliances; regional coherence; regional cooperative security; regional collective defense; regional collective security; pluralistic security community. It has been recognized that regional security management is provided not only by highly specialized or formal structures; but also by multi-purpose regional organizations; which initially pursued a combination of economic and political goals with growing security targets. Conceptual options for regional security governance at the global and regional levels are systematized. Based on the analysis of the mechanisms of global management; own vision of the relationship between the subjects of global governance processes is presented. Discussion. The crisis of recent decades has shown that no single group of global governance actors can act effectively to minimize global risks; which are both a challenge for business leaders and politicians in any country. That is why it is undeniable that global issues require global governance (especially in the field of security); the main goal of which should be to ensure global stability and sustainable development.


2020 ◽  
Vol 25 (2) ◽  
pp. 203-214
Author(s):  
Ana Isabel Rodrigues

Humankind is becoming increasingly image based. Visual culture is everywhere: it surrounds us all with still and moving images. Based on this pictorial change, working with the visual in education has the potential for engaging students in a process of self-reflection in an effort to change ways of thinking and behavior, aiming to consolidate concepts taught in classes. Nevertheless, there are key elements to consider as a set of methodologies and practices. The aim of this study is to explore multiple ways of working with the visual, within educational environments, specifically in classes taught in the second and third year of a degree in Tourism. Two examples of visual methodologies were considered for this study. An image-based exercise through the use of tourism cartoons as visual stimuli to evoke opinions and incite thoughts was fully implemented. Analysis was undertaken and the results are presented. A reflexive photography method is also proposed as another example for a visual-based exercise. The results from the cartoons exercise demonstrate that knowledge is continuously derived from the experience of the learner. The student's impressions and full comprehension of the concepts taught in a particular subject were achieved with this exercise.


Author(s):  
Liu Wang ◽  
Kaiyu He ◽  
Xinquan Wang ◽  
Qiang Wang ◽  
Haoran Quan ◽  
...  

2021 ◽  
Vol 20 ◽  
pp. 160940692199290
Author(s):  
Paulo Padilla-Petry ◽  
Fernando Hernández-Hernández ◽  
Joan-Anton Sánchez-Valero

This article explores the relations between teachers’ visual cartographies and oral narratives to better understand the spatial and temporal relations on teacher learning. It builds on a research project whose main questions were: 1) How and where do secondary school teachers learn to teach? 2) What are the consequences of this learning in their pedagogical relations and their students’ learning processes and results? Since narrative research has been a common way of approaching the subject and have led to an emphasis on learning as a journey across contexts and over time, some of its contributions to explore teachers’ learning paths are theoretically discussed, and visual methods, particularly cartographies, are also examined. Furthermore, the article presents the analysis of cartographies and video recordings of 29 secondary school teachers focusing on the interactions in different spaces and moments in time described by them. Findings suggest that learning to be a teacher may happen in interactions with objects, people and spaces beyond the boundaries of school, university and formal places of training and learning. They also show that the rhizomatic character of the cartographies may not prevent teleological thinking or the idea that any kind of learning is purposeful. Finally, this paper concludes that teachers’ learning does not fit the representational frame that distinguishes between formal contents and leisure activities, classrooms and private spaces, lessons and bodies, emotions and knowledge.


2019 ◽  
Vol 18 ◽  
pp. 160940691983247
Author(s):  
Amber Green ◽  
Myriam Denov

Globally, the numbers of children living in conflict zones and displaced by war have risen dramatically over the past two decades, and with this, scholarly attention to the impacts of war on children. More recently, researchers have examined how war-affected children are being studied, revealing important shortcomings. These limitations relate to the lack of child participation in research, the need for researchers to engage children in the research process as “active agents” rather than “passive objects” under study, as well as the need for researchers to pay closer attention to ethical dilemmas associated with researching war-affected children. To address these realities, innovative research methods that can be adapted across diverse sociocultural contexts are warranted. In light of these shortcomings, our research team integrated two arts-based methods: mask-making and drawing, alongside traditional qualitative data collection methods with a particularly marginalized population of young people: children born in captivity within the Lord’s Resistance Army in northern Uganda. In this article, we provide information on the context of northern Uganda. We describe how the use of mask-making and drawing was used as data gathering tools and the ways in which these arts-based methods had important benefits for the research participants, researchers, and impacted on the validity of the research as a whole. We propose that the use of these participatory visual methods enriched the themes elicited through more traditional methods. The article describes how these arts-based mediums fostered community building among children typically excluded from their communities and were successful as a tool to build trust between participants and the research team when exploring sensitive topics. The article concludes with implications for future research with war-affected children.


2020 ◽  
Vol 11 (1) ◽  
pp. 297
Author(s):  
Jarosław Konior ◽  
Marek Sawicki ◽  
Mariusz Szóstak

The research presented in the article, which includes methods, models, and conclusions, contains synthetic and analytical model solutions concerning the problems of the technical maintenance and wear of residential buildings with a traditional construction. The cause and effect relationships between the occurrence of damage in the elements of tenement houses (treated as proof of their maintenance conditions), and the size of the technical wear of these elements were determined using a representative and purposefully selected sample of 102 residential buildings erected during the second half of the nineteenth and early twentieth centuries in Wroclaw’s “Downtown” district. Quantitative damage analysis, which was carried out using empirical (visual) methods of assessing the technical condition of a building, indicates the type and size of damage to the building’s elements that are characteristic for the relevant maintenance conditions. Research concerning the cause–effect relationships (“damage–technical wear”) in observed states allows for a numerical approach to the impact of building maintenance conditions on the degree of the technical wear of its components. The maintenance and exploitation conditions determine the degree of the technical wear of the elements of an old residential building. The exploitation condition of these buildings is manifested by damage to elements caused by water and moisture penetration, which is especially important for poorly maintained buildings. The article shows that the age of the elements of an old residential building with a traditional construction is of secondary importance in the process of the intensity of losing its serviceability value. It was calculated that no more than 30% of the damage of building components is explained by the passage of time, and it is therefore not age that determines the course of the technical wear of the elements of the analyzed tenement houses.


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