scholarly journals Usability analysis taking into consideration the aspects of accessibility of selected university websites

2021 ◽  
Vol 21 ◽  
pp. 295-302
Author(s):  
Karol Kałan ◽  
Damian Karpiuk ◽  
Mariusz Dzieńkowski

The goal of this paper was to evaluate selected web services of universities in terms of user experience, with particular emphasis on usability and accessibility. The research was conducted using eye-tracking and questionnaire methods. Ten people participated in this study. The objects of the study were three university websites: the Catholic University of Lublin (KUL), the Cracow University of Technology (PK) and the West Pomeranian University of Technology (ZUT). The eye-tracking data were subjected to qualitative and quantitative analyses, while the data from questionnaires were subjected to quantitative analysis. The results of individual analyses are presented in the form of heat maps, scan paths, charts and tables.

2019 ◽  
Vol 4 (2) ◽  
pp. 318-334
Author(s):  
Khazriyati Salehuddin ◽  
Mizhanim Mohamad Shahimin ◽  
Mohamed Zain Sulaiman ◽  
Rasyiqah Batrisya Md Zolkapli

The process of memorizing the Qur’an typically takes place through reading its printed version (mus’haf). The Qur’an is read word by word so that the process of recalling the memorized verses or chapters is done accurately and fluently. Memorizing the Qur’an may be a great challenge to non-Arabic speakers because of their lack of knowledge in the Arabic vocabulary and grammar; yet more and more non-Arabic speakers continue to memorize the Qur’an for various reasons. In order to scientifically investigate how non-Arabic speakers memorize the Qur’an, a reading experiment was conducted to achieve this aim. Sixty-four (21 Male, 43 Female) native speakers of Malay who have memorized a portion of the Qur’an (10 juzu’ and below) participated in this experiment. Using the Tobii TX300 eye-tracking machine, participants’ eye movements, as they read to memorize four verses of the Qur’an (two with and two without Malay translations), were tracked, and their gaze plots were analysed qualitatively (via heat maps and scan paths). Results show evidence that Malay non-Arabic speakers’ act of reading the Qur’an to memorize it went beyond what is usually known as “cramming”; instead, the process involved finding the meaning of unknown words, so that the process of recalling the memorized verses can be done accurately and fluently.   Keywords: Cognitive processes, eye movements, memorization, psycholinguistics, Qur’an   Cited as: Salehuddin, K., Shahimin, M. M., Sulaiman, M. Z., & Md Zolkapli, R. B. (2019). Heat maps and scan paths: Qualitative eye tracking evidence on how the Qur’an is memorized through reading. Journal of Nusantara Studies, 4(2), 318-334. http://dx.doi.org/10.24200/jonus.vol4iss2pp318-334


2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Shaoqi Jiang ◽  
Weijiong Chen ◽  
Yutao Kang

To maintain situation awareness (SA) when exposed to emergencies during pilotage, a pilot needs to selectively allocate attentional resources to perceive critical status information about ships and environments. Although it is important to continuously monitor a pilot’s SA, its relationship with attention is still not fully understood in ship pilotage. This study performs bridge simulation experiments that include vessel departure, navigation in the fairway, encounters, poor visibility, and anchoring scenes with 13 pilots (mean = 11.3 and standard deviation = 1.4 of experience). Individuals were divided into two SA group levels based on the Situation Awareness Rating Technology (SART-2) score (mean = 20.13 and standard deviation = 5.83) after the experiments. The visual patterns using different SA groups were examined using heat maps and scan paths based on pilots’ fixations and saccade data. The preliminary visual analyses of the heat maps and scan paths indicate that the pilots’ attentional distribution is modulated by the SA level. That is, the most concerning areas of interest (AOIs) for pilots in the high and low SA groups are outside the window (AOI-2) and electronic charts (AOI-1), respectively. Subsequently, permutation simulations were utilized to identify statistical differences between the pilots’ eye-tracking metrics and SA. The results of the statistical analyses show that the fixation and saccade metrics are affected by the SA level in different AOIs across the five scenes, which confirms the findings of previous studies. In encounter scenes, the pilots’ SA level is correlated with the fixation and saccade metrics: fixation count ( p  = 0.034 < 0.05 in AOI-1 and p  = 0.032 < 0.05 in AOI-2), fixation duration ( p  = 0.043 < 0.05 in AOI-1 and p  = 0.014 < 0.05 in AOI-2), and saccade count ( p  = 0.086 < 0.1 in AOI-1 and p  = 0.054 < 0.1 in AOI-2). This was determined by the fixation count ( p  = 0.024 < 0.05 in AOI-1 and p  = 0.034 < 0.05 in AOI-2), fixation duration ( p  = 0.036 < 0.05 in AOI-1 and p  = 0.047 < 0.05 in AOI-2), and saccade duration ( p  = 0.05 ≤ 0.05 in AOI-1 and p  = 0.042 < 0.05 in AOI-2) in poor-visibility scenes. In the remaining scenes, the SA could not be measured using eye movements alone. This study lays a foundation for the cognitive mechanism recognition of pilots based on SA via eye-tracking technology, which provides a reference to establish cognitive competency standards in preliminary pilot screenings.


Author(s):  
Jerrold L. Abraham

Inorganic particulate material of diverse types is present in the ambient and occupational environment, and exposure to such materials is a well recognized cause of some lung disease. To investigate the interaction of inhaled inorganic particulates with the lung it is necessary to obtain quantitative information on the particulate burden of lung tissue in a wide variety of situations. The vast majority of diagnostic and experimental tissue samples (biopsies and autopsies) are fixed with formaldehyde solutions, dehydrated with organic solvents and embedded in paraffin wax. Over the past 16 years, I have attempted to obtain maximal analytical use of such tissue with minimal preparative steps. Unique diagnostic and research data result from both qualitative and quantitative analyses of sections. Most of the data has been related to inhaled inorganic particulates in lungs, but the basic methods are applicable to any tissues. The preparations are primarily designed for SEM use, but they are stable for storage and transport to other laboratories and several other instruments (e.g., for SIMS techniques).


Author(s):  
Paul A. Wetzel ◽  
Gretchen Krueger-Anderson ◽  
Christine Poprik ◽  
Peter Bascom

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
T Jankovic ◽  
G Zdunic ◽  
K Savikin ◽  
I Beara ◽  
N Mimica-Dukić

Plants ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 123
Author(s):  
Mariangela Marrelli ◽  
Maria Rosaria Perri ◽  
Valentina Amodeo ◽  
Francesca Giordano ◽  
Giancarlo A. Statti ◽  
...  

Photochemotherapy is one of the most interesting current therapeutic approaches for the treatment of melanoma. Different classes of naturally occurring phytochemicals demonstrated interesting photoactive properties. The aim of this study was to evaluate the photocytotoxic potential of two Cachrys species from Southern Italy: C. sicula and C. libanotis (Apiaceae). The enriched-coumarin extracts were obtained from aerial parts through both traditional maceration and pressurized cyclic solid-liquid (PCSL) extraction using Naviglio extractor®. Qualitative and quantitative analyses of furanocoumarins were performed with GC-MS. The photocytotoxic effects were verified on C32 melanoma cells irradiated at a dose of 1.08 J/cm2. The apoptotic responses were also assessed. Moreover, phenolic content and the in vitro antioxidant potential were estimated. Xanthotoxin, bergapten, and isopimpinellin were identified. All the samples induced concentration-dependent photocytotoxic effects (IC50 ranging from 3.16 to 18.18 μg/mL). The C. libanotis sample obtained with Naviglio extractor® was the most effective one (IC50 = 3.16 ± 0.21 μg/mL), followed by C. sicula sample obtained with the same technique (IC50 = 8.83 ± 0.20 μg/mL). Both Cachrys samples obtained through PCSL induced up-regulation of apoptotic signals such as BAX (Bcl2-associated X protein) and PARP (poly ADP-ribose polymerase) cleavage. Moreover, these samples proved to be more photoactive, giving a greater upregulation of p21 protein in the presence of UVA radiation. Obtained results suggest that investigated species could be promising candidates for further investigations aimed to find new potential drugs for the photochemotherapy of skin cancer.


2020 ◽  
Vol 5 (12) ◽  
pp. e002938
Author(s):  
Austin Carter ◽  
Nadia Akseer ◽  
Kevin Ho ◽  
Oliver Rothschild ◽  
Niranjan Bose ◽  
...  

This paper introduces a framework for conducting and disseminating mixed methods research on positive outlier countries that successfully improved their health outcomes and systems. We provide guidance on identifying exemplar countries, assembling multidisciplinary teams, collecting and synthesising pre-existing evidence, undertaking qualitative and quantitative analyses, and preparing dissemination products for various target audiences. Through a range of ongoing research studies, we illustrate application of each step of the framework while highlighting key considerations and lessons learnt. We hope uptake of this comprehensive framework by diverse stakeholders will increase the availability and utilisation of rigorous and comparable insights from global health success stories.


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