This multiple-case study examined the rationales and instructional strategies for teaching history of science of 16 instructors of a history of science course for undergraduate preservice teachers in the USA. Based on instructor syllabi, instructional materials, and instructor interviews, we conducted single-case and cross-case analyses to identify why they teach HOS, how they teach HOS, and what possible relationships might underlie instructor rationales and their instructional strategy choices for teaching HOS. We found 10 rationales in three overarching categories and 9 (...) active-learning instructional strategies. Moreover, we found that instructors with skills rationales implemented active-learning instructional strategies, whereas instructors who only cited knowledge rationales relied only on lectures and reading discussions. We discuss implications and recommendations for the design of HOS courses. (shrink)

This article suggests a model of uttering/énonciation as representational activity (Energeia) throughout the observable case of both impersonal injunctions and collaborative interaction. Being a dynamic relation at the intersection of notions, language and world, reference, this model integrates a new paradigm into the realm of discursive linguistics, the described morphodynamic language phenomenon instead of the described hypothesis emanating from “structuralized” grammars. We thus discuss one aspect of the interaction adjustment/distortion beyond mere projection (stasis of both virtual social markers and uttered (...) stable forms), considering distortion as a relevant marker of the described observable (an interaction from a translation course for instance). Henceforth, beyond the speech act frame, we present a mathematical attempt to study the variation of the pragmatic impact taking place between projection and result; this last implies two sources positions and praxical levels. As a conclusive note, we expose a brief insight into the phenomenon misunderstanding between both neurocognitive and linguistic studies. (shrink)

This article suggests an enhancement of the Masek circle model approach usually used to find a trade-off between modeling complexity, algorithm accuracy, and computational time, mainly for embedded systems where the real-time aspect is a high challenge. Moreover, most commercialized systems today frame iris regions by circles. This work led to several novelties: first, in the segmentation process, the corneal reflection removal method based on morphological reconstruction and pixel connectivity was implemented. Second, the picture size reduction was applied according to (...) nearest-neighbor interpolation. Third, the image gradient of the convolved-reduced picture was then generated using four proposed matrices. Fourth, and to reduce the complexity of the traditional method for the detection of the top and lower eyelids, a new method based on the Radon transform and the least squares fitting method was applied. Fifth, eyelashes were detected via the diagonal gradient and thresholding method. Monogenic signal was used in the feature extraction process. Finally, two distance measures were selected as a metric for recognition. Our experimental results using CASIA iris database V3.0 reveal that the proposed method provides a high performance in terms of speed and accuracy. Using dissimilarity modified Hamming distance, the accuracy of iris recognition was improved, with a false acceptance rate equal to 3% and a speed at least eight times as compared with the state of the art. (shrink)

ABSTRACT The use of social media by extreme right groups and the self-proclaimed formation of the ‘alt-right’ in recent years have been linked to the rise in US white nationalism. Against a backdrop of widespread concern regarding the growing nature of the ‘alt-right’ phenomenon, this article responds to the pressing need to understand its appeal. Specifically, we examine the discursive means by which a hitherto unexamined US ‘alt-right’ group, the Traditionalist Worker Party, constructs its group identity and ideology online. Corpus (...) assisted discourse analysis of this group’s blog reveals that the Traditionalist Worker Party regularly mobilises five discourses in order to assert subject positions of victimhood for its members, alongside recurrent use of explicit out-grouping strategies. The out-groups are blamed for a general malaise – an uncertain, chaotic reality that can and must be changed through affiliation with the Traditionalist Worker Party. The study also shows that the Traditionalist Worker Party constructs itself a highly entitative group as a means to enhancing its recruitment appeal. (shrink)

BackgroundHaving moral courage is a crucial characteristic for nurses to handle ethical quandaries, stay true to their professional obligations towards patients, and uphold ethical principles. This concept can be influenced by various factors including personal, professional, organizational, and leadership considerations. The purpose of this study was to explore the predictors of moral courage among nurses working in hospitals.MethodsIn 2018, an observational cross-sectional study was carried out on 267 nurses employed in six hospitals located in the northern region of Iran. The (...) participants were selected through a simple random sampling technique. To collect data, a demographic information form was used along with two questionnaires. The first questionnaire was a standard survey on moral courage, while the second questionnaire was designed to assess the ethical climate. Linear regression was used to assess the predictors of moral courage.ResultsNurses had an average moral courage score of 87.07 ± 15.52 and an average moral climate score of 96.12 ± 17.17. The study showed that 16% of the variation in moral courage scores among nurses was explained by ethical climate and monthly overtime hours.ConclusionThis study underscores the significance of establishing an ethical work environment and minimizing overtime hours in order to enhance moral courage among nurses. These findings carry weight for both nursing practice and organizational policies focused on fostering ethical conduct within healthcare settings. (shrink)

The umbrella-term ‘executive functions’ includes various domain-general, goal-directed cognitive abilities responsible for behavioral self-regulation. The influential unity and diversity model of EF posits the existence of three correlated yet separable executive domains: inhibition, shifting and updating. These domains may be influenced by factors such as socioeconomic status and culture, possibly due to the way EF tasks are devised and to biased choice of stimuli, focusing on first-world testees. Here, we propose a FREE test battery that includes two open-access tasks for (...) each of the three abovementioned executive domains to allow latent variables to be obtained. The tasks were selected from those that have been shown to be representative of each domain, that are not copyrighted and do not require special hardware/software to be administered. These tasks were adapted for use in populations with varying SES/schooling levels by simplifying tasks/instructions and using easily recognized stimuli such as pictures. Items are answered verbally and tasks are self-paced to minimize interference from individual differences in psychomotor and perceptual speed, to better isolate executive from other cognitive abilities. We tested these tasks on 146 early adolescents of both sexes and varying SES, because this is the age group in which the executive domains of interest become distinguishable and in order to confirm that SES effects were minimized. Performance was determined by Rate Correct Scores, which consider speed-accuracy trade-offs. Scores were sensitive to the expected improvement in performance with age and rarely/inconsistently affected by sex and SES, as expected, with no floor or ceiling effects, or skewed distribution, thus suggesting their adequacy for diverse populations in these respects. Using structural equation modeling, evidence based on internal structure was obtained by replicating the three correlated-factor solution proposed by the authors of the model. We conclude that the FREE test battery, which is open access and described in detail, holds promise as a tool for research that can be adapted for a wide range of populations, as well as altered and/or complemented in coming studies. (shrink)

BackgroundOrgan donation following brain death has become an important way of supplying organs for transplantation in many countries. This practice is less common in Iran for different reasons. Therefore, this study aims to explore the obstacles to organ donation following brain death in Iran.MethodsThis qualitative research was conducted following the conventional content analysis method. The study population consisted of individuals with a history of brain death among their blood relatives who refused to donate the organs. Snowball sampling was employed to (...) select the participants. In-depth semi-structured interviews were conducted for data gathering. Theoretical saturation was achieved through 20 interviews. Data analysis was done following the steps proposed by Graneheim and Lundman. Lincoln and Guba’s criteria were used to ensure data rigor and transferability of the study.ResultsData analyses revealed 185 codes, 23 categories, and seven themes including, poor knowledge about brain death and organ transplantation from a dead body, cultural beliefs, religious beliefs, deficiencies of requesting process, fear and concerns, inability to make a decision, and social learning.ConclusionThere were several factors in families’ reluctance to donate organs of a brain-dead patient. Through improving knowledge and changing cultural beliefs in society, it is possible to take large steps towards promoting organ donation from brain-dead patients. (shrink)

BackgroundAfter the declaration of the COVID-19 pandemic, governments established national lockdowns and social distancing as an effective plan to control this disease. As a result of the lockdown policies, diabetic patients` access to food products, medication, and routine follow-ups is disrupted, making it difficult for them to control their disease.MethodsInternational databases, including PubMed/Medline, Web of Science, and Scopus, were searched until April 2022. All observational studies included assessing the impact of lockdown and social distancing on eating habits, and glycemic and (...) anthropometric indices of diabetic patients during the COVID-19 pandemic. The Newcastle-Ottawa Quality Scale was used to assess the quality rating of the studies.ResultsOverall, 22 studies were included in this systematic review, the results of which varied in different communities. In most studies, consumption of grains, fruits, and vegetables was reported to increase. On the other hand, consumption of snacks and sweets was reported to increase in other surveys. During the COVID-19 lockdown, most diabetic patients preferred to cook meals at home, using less takeout, fast foods, and alcoholic drinks. Although the patients mostly improved their eating habits, the glycemic and anthropometric indices were contradictory in different studies. Studies showed that the eating habits of diabetic patients vary from country to country, even in some cases and studies done in the same country showed different results. For example, all the studies done in Japan showed an increase in the consumption of snacks and sweets, leading to weight gain in the patients. However, conflicting results in eating habits have been observed in studies conducted in India.ConclusionThe lockdown policies have led to a beneficial change in the eating habits of diabetic patients to consume more fruits and vegetables and reduce the consumption of animal protein products and alcoholic beverages. While some diabetic patients have increased consumption of snacks and sweets, leading to a disturbance in their glycemic and anthropometric indices control. Understanding the consequences of lockdown and social distancing of the diabetic patient during the COVID-19 pandemic can help public health authorities make better recommendations to improve glycemic control. (shrink)