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The proliferation of generative artificial intelligence (AI) chatbots such as ChatGPT has sparked a transformation in the dynamics of human–machine interactions. However, little is known about the psychological mechanisms underlying generative AI chatbot–human relationships. Building on the investment model, this study examined the influence of generative AI user-friendliness and playfulness on ChatGPT commitment and continuance usage intention. The results of an online survey conducted in the United States (N = 446) indicated that user-friendliness and playfulness positively affect satisfaction, investment size, and perceived quality of alternatives. Both satisfaction and investment size positively affect commitment to ChatGPT, thereby influencing the intention to continue using generative AI chatbots. However, the quality of alternatives did not significantly affect user commitment to ChatGPT. The findings of this study contribute to our understanding of building user relationships with generative AI chatbots by identifying user-friendliness (representing utilitarian value) and playfulness (representing hedonic value) as key factors in determining generative AI continuance usage intention. [ABSTRACT FROM AUTHOR]

D-dimer testing combined with a clinical assessment has become a standard pathway for ruling-out venous thromboembolism (VTE). Recently, novel Point-of-Care (POC) D-dimer assays have been introduced, enabling low-volume blood sampling for rapid exclusion of VTE in a one-step procedure. We assessed the analytical validity and user-friendliness of a set of these novel POC D-dimer assays, and compared the results with a standard laboratory assay. Plasma samples were run on our reference assay (STA-Liatest D-di PLUS®) and five POC assays: Nano-Checker 710®, AFIAS-1®; iChroma-II®; Standard F200® and Hipro AFS/1®). After evaluating imprecision, Pearson Product-Moment correlation coefficients were calculated, Passing Bablok regression was performed and Bland-Altman plots were generated. User-friendliness was evaluated using the System Usability Scale (SUS). A set of 238 plasma samples of patients clinically suspected of VTE in general practice was available for analysis. Only one POC D-dimer assay (Nano-Checker 710) demonstrated an insufficient degree of imprecision. Pearson correlation coefficients and mean biases ranged from 0.68 to 0.93 and -165 to -53 μg/L respectively, and concordance with our reference assay varied from 71.8% to 89.5% using a 500 μg/L cut-off point. While we found considerable variation in overall user-friendliness, most devices were judged easy to use. In view of our findings regarding analytical performance and user-friendliness, we consider most of the novel POC D-dimer assays can be used in settings outside of the laboratory such as general practice, combining the possibility of multi-testing with low-volume capillary blood sampling and processing times of less than 15 min. [ABSTRACT FROM AUTHOR]

This study investigates young consumers' behavioural intention based on attractiveness, user-friendliness, and marketing effectiveness of economy hotel websites. Comparison of ratings between languages used and groups of respondents was also made. Results showed no significant difference in scores between the English language and Chinese language websites. Chinese and Thai respondents reported significant differences in three dimensions for the English language websites. Site attractiveness, user-friendliness, and marketing effectiveness are positively linked to behavioural intentions. Marketing effectiveness is a crucial driver for making an online reservation and for recommendation/revisit. Language matters and is important in customer relationships in the context of B2C communication. Website designers and marketers can consider additional design factors in order to improve the overall design of the websites. [ABSTRACT FROM AUTHOR]

Background: Despite the importance of written healthcare information in improving an individual's health status, patients may not be able to sufficiently utilize available resources because of a disparity between the accessibility of online written materials and patients' ability to process that information. For individuals with impairments in written language comprehension, such as persons with aphasia, this disparity may be magnified. It is crucial that written health resources be cognitively accessible, accurate, and understandable for persons with aphasia. Aims: The aims of this study were to: (1) objectively measure the accessibility of current written educational materials for persons with aphasia and (2) examine the relationship between levels of readability, validity, and user-friendliness of materials accessed. Methods & Procedures: Aphasia-related webpages likely to be accessed during an Internet search were retrieved and analysed. These webpages were determined by selecting the first 10 search results generated from entering the terms: "aphasia", "aphasia treatment", and "aphasia help", into Google, Bing, and Yahoo. This method resulted in 30 website resources per search engine. For each webpage, readability was evaluated using the following readability formulae: Flesch-Kincaid Reading Ease, Flesch-Kincaid Grade Level (F-K), Simple Measure of Gobbledygook, and FORCAST. Additionally, validity and user-friendliness were evaluated for each webpage using the following measures: Site, Publisher, Audience, Timeliness (SPAT) and Suitability Assessment of Materials (SAM), respectively. Outcomes & Results: A significant disparity was found between the desired and current level of readability, validity, and user-friendliness of the written information provided within the top search results related to aphasia. Based on the readability formulae output the average reading grade level of 10th grade was well above the average 5th grade reading level recommended for written materials. A third of the websites were unacceptable using the SPAT's quality standards and overall user-friendliness was deemed poor with an average SAM score of 27.4 out of 52 total points. No relationship was found between the validity or user-friendliness of websites and their readability. Conclusions: These data clearly demonstrate inadequacies in written web-based information about aphasia across several measures and provide insight into how the presentation of this information can be improved to facilitate useful information dissemination. Highlighting these disparities is important for promoting increased consideration and improvement in the usefulness and accessibility of healthcare information for persons with aphasia. [ABSTRACT FROM AUTHOR]

This study examined ease-of-use, user-friendliness, and cloud computing adoption for Web-based service in academic libraries in Kwara State, Nigeria. Specifically, the study identified the types of cloud computing adopted for delivering Web-based services; examined the user-friendliness of cloud computing; identified the benefits of cloud computing; examined the ease-of-use of cloud computing and established the relationship between ease-of-use and user-friendliness and adoption of cloud computing for delivering Web-based services; and identify the challenges encountered by academic libraries in their adoption of cloud computing for delivering Web-based services. The study adopted a survey design using a sample of thirty-five (35) librarians drawn through the total enumeration method from three universities in Ilorin, Kwara State. Data were collected through a questionnaire and collected data were analyzed using frequency count and percentages. The hypotheses of the study were tested using the Pearson Product Moment Correlation (PPMC). The findings demonstrate that respondents confirmed the ease-of-use and user-friendliness of cloud computing for delivering Web-based services in academic libraries. The findings also reveal that cloud computing is flexible and not vulnerable to computer breakdowns and loss of data; easy to integrate existing work with the cloud-based services, saves time, and enables the accomplishment of tasks more quickly. The study recommends based on the findings that academic libraries should be provided with a reliable source of powers as backup against epileptic power supply with a strong Internet connection and broad bandwidth to further support the adoption of cloud computing in academic libraries in Kwara State, Nigeria. [ABSTRACT FROM AUTHOR]

A fast, robust and efficient algorithm for solving the problem of scheduling two quay cranes with non-interference constraints at Narvik container terminal has been developed. To solve the problem, a genetic algorithm approach is used and adapted to the case of two cranes. This approach manages to provide practical solutions and significant time savings for a real-life crane-scheduling problem. Operators at Narvik container terminal find the solution to be user-friendly, and it allows the user to change parameter settings and obtain solutions in real time. [ABSTRACT FROM PUBLISHER]