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2022 ◽  
Vol 4 (4) ◽  
pp. p38
Author(s):  
Vibeke Christensen ◽  
Peter Hobel

Students write to learn. Besides, enculturation to the disciplinary discourse happens during writing. Feedback on the assignments from the students scaffolds students’ writing development and learning paths. However, knowledge about the relationship between language, including argumentation in the discipline, on one hand, and the content of the discipline, on the other, is needed. This article is based on a socio-cultural approach to writing in the disciplines, and theory on feedback, and focuses on the relationship between the meso-level of texts (sentences, clauses, word choice) and the content of the discipline.  We discuss how insight into the meso-level of texts may be used to improve and to develop feedback and formative evaluation. Cases from an intervention project in a Danish upper secondary school are included, and indicate that teachers and students assign a lower priority to feedback on the meso-level. This article claims that providing feedback on the meso-level strengthens writing development and students’ learning processes. To illustrate how this may be accomplished two texts are analyzed: one from a history class and one from a biology class.


10.2196/26563 ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. e26563
Author(s):  
Christin Malinka ◽  
Ute von Jan ◽  
Urs-Vito Albrecht

Background Health apps are often used without adequately taking aspects related to their quality under consideration. This may partially be due to inadequate awareness about necessary criteria and how to prioritize them when evaluating an app. Objective The aim of this study was to introduce a method for prioritizing quality attributes in the mobile health context. To this end, physicians were asked about their assessment of nine app quality principles relevant in health contexts and their responses were used as a basis for designing a method for app prioritization. Ultimately, the goal was to aid in making better use of limited resources (eg, time) by assisting with the decision as to the specific quality principles that deserve priority in everyday medical practice and those that can be given lower priority, even in cases where the overall principles are rated similarly. Methods A total of 9503 members of two German professional societies in the field of orthopedics were invited by email to participate in an anonymous online survey over a 1-month period. Participants were asked to rate a set of nine app quality principles using a Kano survey with functional and dysfunctional (ie, positively and negatively worded) questions. The evaluation was based on the work of Kano (baseline), supplemented by a self-designed approach. Results Among the 9503 invited members, 382 completed relevant parts of the survey (return rate of 4.02%). These participants were equally and randomly assigned to two groups (test group and validation group, n=191 each). Demographic characteristics did not significantly differ between groups (all P>.05). Participants were predominantly male (328/382, 85.9%) and older than 40 years (290/382, 75.9%). Given similar ratings, common evaluation strategies for Kano surveys did not allow for conclusive prioritization of the principles, and the same was true when using the more elaborate approach of satisfaction and dissatisfaction indices following the work of Timko. Therefore, an extended, so-called “in-line-of-sight” method was developed and applied for this evaluation. Modified from the Timko method, this approach is based on a “point of view” (POV) metric, which generates a ranking coefficient. Although the principles were previously almost exclusively rated as must-be (with the exception of resource efficiency), which was not conducive to their prioritization, the new method applied from the must-be POV resulted in identical rankings for the test and validation groups: (1) legal conformity, (2) content validity, (3) risk adequacy, (4) practicality, (5) ethical soundness, (6) usability, (7) transparency, (8) technical adequacy, and (9) resource efficiency. Conclusions Established survey methodologies based on the work of Kano predominantly seek to categorize the attributes to be evaluated. The methodology presented here is an interesting option for prioritization, and enables focusing on the most important criteria, thus saving valuable time when reviewing apps for use in the medical field, even with otherwise largely similar categorization results. The extent to which this approach is applicable beyond the scenario presented herein requires further investigation.


2022 ◽  
Vol 69 (1) ◽  
Author(s):  
Godwin Onyekachi Ugwu ◽  
Udora Nwabuoku Nwawelu ◽  
Mamilus Aginwa Ahaneku ◽  
Cosmas Ikechukwu Ani

AbstractThe enhanced distributed channel access (EDCA) protocol is a supplement to IEEE 802.11 medium access control (MAC), ratified by IEEE 802.11e task group to support quality of service (QoS) requirements of both data and real-time applications. Previous research show that it supports priority scheme for multimedia traffic but strict QoS is not guaranteed. This can be attributed to inappropriate tuning of the medium access parameters. Thus, an in-depth analysis of the EDCA protocol and ways of tuning medium access parameters to improve QoS requirements for multimedia traffic is presented in this work. An EDCA model was developed and simulated using MATLAB to assess the effect of differentiating contention window (CW) and arbitration inter-frame space (AIFS) of different traffic on QoS parameters. The optimal performance, delay, and maximum sustainable throughput for each traffic type were computed under saturation load. Insight shows that traffic with higher priority values acquired most of the available channels and starved traffic with lower priority values. The AIFS has more influence on the QoS of EDCA protocol. It was also observed that small CW values generate higher packet drops and collision rate probability. Thus, EDCA protocol provides mechanism for service differentiation which strongly depends on channel access parameters: CW sizes and AIFS.


Author(s):  
Tobias Grundgeiger ◽  
Annabell Michalek ◽  
Felix Hahn ◽  
Thomas Wurmb ◽  
Patrick Meybohm ◽  
...  

Objective To investigate the effect of a cognitive aid on the visual attention distribution of the operator using the Salience Effort Expectancy Value (SEEV) model. Background Cognitive aids aim to support an operator during the execution of a task. The effect of cognitive aids on performance is frequently evaluated but whether a cognitive aid improved, for example, attention distribution has not been considered. Method We built the Expectancy Value (EV) model version which can be considered to indicate optimal attention distribution for a given event. We analyzed the eye tracking data of emergency physicians while using a cognitive aid application versus no application during a simulated in-hospital cardiac arrest scenario. Results The EV model could fit the attention distribution in such a simulated emergency situation. Partially supporting our hypothesis, the cognitive aid application group showed a significantly better EV model fit than the no application group in the first phases of the event, but a worse fit in the last phase. Conclusion We demonstrated that a cognitive aid affected attention distribution and that the SEEV model provides the means of capturing these effects. We suggest that the aid supported and improved visual attention distribution in the stressful first phases of a cardiopulmonary resuscitation but may have focused attention on objects that are relevant for lower priority goals in the last phase. Application The SEEV model can provide insights into expected and unexpected effects of cognitive aids on visual attention distribution and may help to design better artifacts.


2021 ◽  
pp. 143-148
Author(s):  
Kelsey P. Hopkins ◽  
Branislav Bédi

This article presents two studies performed on 14 immigrant families with children aged one to 16; 12 families in Iceland and two Icelandic families living abroad. Lack of exposure and availability of online materials for learning Icelandic as an L2 may affect what skills children can practise at home. This study represents 32 children aged one to 16, all of whom practise Icelandic (L2) at home. Data regarding use and availability of online and offline learning materials were collected by means of a survey containing both open-ended and closed questions. A comprehensive, central directory of available materials was created in parallel as a desktop research. These studies reveal that Icelandic is spoken in most homes but children require further development of specific language skills, predominantly reading. Families consider reading, writing, and vocabulary to be the most important skills to practise, while grammar, speaking, and listening take lower priority. Children’s books are the most frequently used learning material, while textbooks, audiobooks, and other language programmes or apps are used less frequently. TV, films, and online channels (e.g. YouTube) are used to provide language exposure.


Author(s):  
Dr. P. Mari Selvam ◽  
◽  
Dr. A. Gomathi ◽  

The corona virus which causes a highly infectious of Corona virus disease (COVID-19) that has affected more than 4 lakh people in around the world. Since it has been increased during the pandemic period online shopping usage, rural, urban and globally. In the current scenario many youngster’s changing the attitude has purchased to online shopping because social distancing and self-quarantine efforts. Hence the online shopping promoters like Amazon, flip kart, Reliance digital and other agencies are for the time being too given the importance its available fulfilment and logistics facility to serve the basic needs such as household products, packaged food, health care, hygiene, personal safety and other high priority products. It is for the time being going to taking orders for lower-priority to high priority products. In this study to analyze the impact of online buying behaviour increased in after pandemic period.


Healthcare ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 1467
Author(s):  
Fransiskus Xaverius Widiantoro ◽  
Jing-Jy Wang ◽  
Yi-Ching Yang ◽  
Cheng-Chen Chou ◽  
Chi-Jane Wang

Moderate-to-vigorous physical activity (PA) is recommended to mitigate the risk of diabetes. This study explored the PA of adults at risk for diabetes in rural Indonesia and determined the requirements for meeting the recommended PA level. In total, 842 adults were screened using a diabetes risk test in a rural health centre; among them, 342 were at risk of diabetes. The level of PA was assessed using the International Physical Activity Questionnaire, whereas the associated factors underlying the three domains –individual, support, and environment—were determined by the Influences on Physical Activity Instrument. The data analysis included a three-step multiple linear regression (MLR) and logistic regression (LR). Overall, 40.6% of the participants met the recommended PA. According to the MLR analysis, among males, individuals who gave PA a higher priority and had enough time to perform PA were predicted to have a higher activity energy expenditure (MET-minutes per week). According to the LR analysis, men were more likely to meet the recommended PA, and people who gave PA a lower priority and had less access to space for PA were less likely to meet the recommended PA level. Strategies for promoting PA in rural Indonesia include focusing on women, people who prioritize PA less, and those who have less time and space in which to be physically active.


2021 ◽  
Vol 50 (3) ◽  
pp. 443-457
Author(s):  
Thamer Alrawashdeh ◽  
Fuad ElQirem ◽  
Ahmad Althunibat ◽  
Roba Alsoub

The regression testing is a software-based testing approach executed to verify that changes made to the softwaredo not affect the existing functionality of the product. On account of the constraints of time and cost, it isimpractical to re-execute all the test cases for software whenever a change occurs. In order to overcome sucha problem in the selection of regression test cases, a prioritization technique should be employed. On the basisof some predefined criterion, the prioritization techniques create an execution schedule for the test cases, sothe higher priority test cases can be performed earlier than the lower priority test cases in order to improvethe efficiency of the software testing. Many prioritization criteria for regression test cases have been proposedin software testing literature; however, most of such techniques are code-based. Keeping in view this fact, thisresearch work has proposed a prioritization approach for regression test cases generated from software specificationswhich are based on the criterion of the Average Percentage Transition Coverage (APTC) by using arevised genetic algorithm. This criterion evaluates the rate of transitions coverage by incorporating knowledgeabout the significance of transitions between activates in the form of weights. APTC has been used as a fitnessevaluation function in a genetic algorithm to measure the effectiveness of a test cases sequence. Moreover, inorder to improve the coverage percentage, the proposed approach has revised the genetic algorithm by solvingthe problem of the optimal local solution. The experimental results show that the proposed approach demonstratesa good coverage performance with less execution time as compared to the standard genetic algorithmand some other prioritization techniques.


2021 ◽  
pp. 145-160
Author(s):  
Karla Vermeulen

The chapter “Climate Change and Expectations for the Future of the Planet” discusses one of the more amorphous stressors for Generation Disaster as it’s difficult to measure the psychological impact of a chronic problem like climate change. Many emerging adults recognize the problem and experience varying levels of stress about it, sometimes referred to as “eco-anxiety,” and many are actively engaged in combating its effects. Others consider it a lower priority than the many acute stressors they’re trying to manage, but in general younger generations express far more concern about the problem than their elders. The chapter explores these reactions and the efforts of some emerging adults to cope with a stressor many feel they unfairly inherited.


2021 ◽  
Vol 11 (3) ◽  
pp. 680-689
Author(s):  
Julia Hansson ◽  
Amanda Hörnfeldt ◽  
Gunilla Björling ◽  
Janet Mattsson

Background: Internationally, there are very few guidelines regarding how near relations can be taken care of on a children’s intensive care unit. Despite knowledge about the positive effects of parental presence, staff frequently reject parents out of insecurity. This study aimed to investigate health professionals’ understanding of letting parents be present throughout critical situations. A qualitative method with semi-structured interviews was used to answer the aim of his study. Nine persons participated in the study, both physicians and nurses. The result showed that health professionals’ main view is that parents’ presence is positive. However, their presence often has lower priority than the medical focus of the child and the health professionals’ concern of failure. Conclusion: Health professionals have the power to decide if parents can be present in critical situations. Only when a parent demands to be present does that demand beat the decisions made by health professionals. Lack of resources within the team and fear of parents becoming a disturbance or a distraction are cited as the primary reasons not to let parents be present.


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