This study assessed the demographic characteristics of Koreans engaged in leisure sports activities during the COVID-19 pandemic and the differences in their preventive health behaviors and constraints on leisure activities. For this study, the demographic characteristics of 544 leisure sport participants, who were recruited on a nationwide basis, were examined through an online survey. Then, comparisons between groups were performed using independent t-tests, one-way analysis of variance, and multivariate analysis of variance. Women who participated in both indoor and outdoor leisure (...) sports showed higher adoption of health prevention behaviors than their male counterparts, and married individuals who participated in indoor leisure sports showed higher adoption of health prevention behaviors than unmarried participants. Moreover, individuals who participated in both indoor and outdoor leisure sports by themselves had many interpersonal constraints overall, and the group of married individuals who participated in indoor leisure sports showed structural constraints. In conclusion, leisure sports participants have adopted many health prevention behaviors during the COVID-19 pandemic, but this had led to some interpersonal constraints. These results indicate that, in the case of future pandemics, personal and institutional efforts will need to be made to promote participation in leisure sports and prevent excessive social isolation. (shrink)

BackgroundAttention deficit hyperactivity disorder is clinically diagnosed; however, quantitative analysis to statistically analyze the symptom severity of children with ADHD via the measurement of head movement is still in progress. Studies focusing on the cues that may influence the attention of children with ADHD in classroom settings, where children spend a considerable amount of time, are relatively scarce. Virtual reality allows real-life simulation of classroom environments and thus provides an opportunity to test a range of theories in a naturalistic and (...) controlled manner. The objective of this study was to investigate the correlation between participants’ head movements and their reports of inattention and hyperactivity, and to investigate how their head movements are affected by different social cues of different sensory modalities.MethodsThirty-seven children and adolescents with and without ADHD were recruited for this study. All participants were assessed for diagnoses, clinical symptoms, and self-reported symptoms. A virtual reality-continuous performance test was conducted under four conditions: control, no-cue, visual cue, and visual/audio cue. A quantitativecomparison of the participants’ head movements was conducted in three dimensions using a head-mounted display in a VR classroom environment. Task-irrelevant head movements were analyzed separately, considering the dimension of movement needed to perform the VR-CPT.ResultsThe magnitude of head movement, especially task-irrelevant head movement, significantly correlated with the current standard of clinical assessment in the ADHD group. Regarding the four conditions, head movement showed changes according to the complexity of social cues in both the ADHD and healthy control groups.ConclusionChildren and adolescents with ADHD showed decreasing task-irrelevant movements in the presence of social stimuli toward the intended orientation. As a proof-of-concept study, this study preliminarily identifies the potential of VR as a tool to understand and investigate the classroom behavior of children with ADHD in a controlled, systematic manner. (shrink)

This study viewed students majoring in public relations as prospective public relations practitioners and explored their perceptions about corporate social responsibility (CSR) as their job attraction condition. The results showed that the students perceived CSR to be an important ethical fit condition of a company. One of the significant findings is that CSR can be an effective reputation management strategy for prospective employees, particularly when a company’s business is suffering. In examining the effect of CSR efforts on attitudinal and behavioral (...) outcomes, person–organization (P–O) fit appeared to serve as a mediator between CSR performances and organizational attractiveness. (shrink)

Public relations scholars have demonstrated contradictory views regarding the application of universal versus culture-specific approaches for understanding global public relations ethics. However, few comparative studies have empirically explored public relations ethics on a global scale. To that end, this study represents an exploratory attempt to provide a descriptive picture of public relations professional associations and their codes of ethics across 107 countries. In conclusion, we argue that honesty, safeguarding of confidences of clients, and prohibition of conflicts of interest of competing (...) clients should be accepted as the universal values, while other issues, such as free flow of information and fees and gifts, could be understood as the relativistic values specific to a nation's situation and needs. (shrink)

Forecasting blood glucose values for patients can help prevent hypoglycemia and hyperglycemia events in advance. To this end, this study proposes an intelligent ensemble deep learning system to predict BG values in 15, 30, and 60 min prediction horizons based on historical BG values collected via continuous glucose monitoring devices as an endogenous factor and carbohydrate intake and insulin administration information as exogenous factors. Although there are numerous deep learning algorithms available, this study applied five algorithms, namely, recurrent neural network, (...) which is optimized for sequence data, and RNN-based algorithms, stacked LSTM, bidirectional LSTM, and gated recurrent unit). Then, a genetic algorithm was applied to the five prediction models to optimize their weights through ensemble techniques and to yield the final predicted BG values. The performance of the proposed model was compared to that of the autoregressive integrated moving average model as a baseline. The results show that the proposed model significantly outperforms the baseline in terms of the root mean square error and continuous glucose error grid analysis. For the valid 29 diabetic patients for the multivariate models, the RMSE was 11.08, 19.25, and 31.30 mg/DL for 15, 30, and 60 min PH, respectively. When the same data were applied to univariate models, the RMSE was 11.28, 19.99, and 33.13 mg/DL for 15, 30, and 60 min PH, respectively. Both the univariate and multivariate models showed a statistically significant difference compared with the baseline at a 5% statistical significance level. Instead of using a model with a single algorithm, applying a GA based on each output of a model with multiple algorithms was found to play a significant role in improving model performance. (shrink)

This squib aims to show that the acceptability status of sluicing examples with an implicit antecedent in islands varies and discusses what is responsible for this variability. After investigating two representative structural approaches to sluicing that posit unpronounced structure in ellipsis sites, namely, Chung et al.’s Representing language: Essays in honor of Judith Aissen, 2010) LF-recovery analysis and Merchant’s PF-deletion analysis, we demonstrate that the acceptability data presented are challenging for both of them. Acceptable sluicing examples with implicit correlates in (...) islands cast doubt on Chung, Ladusaw, and McCloskey’s strict locality requirement, while unacceptable or degraded sluicing examples necessitate additional constraints for Merchant, who employs E-type anaphora as an escape hatch for island violations in sluicing. The gradient nature of the acceptability status of the examples under discussion calls for a non-structural factor that controls their acceptability. We speculate that it is discourse activation of implicit correlates that plays this crucial role. (shrink)

The slandering of a firm’s products by competing firms poses significant threats to the victim firm, with the resulting damage often being as harmful as that from product-harm crises. In contrast to a true product-harm crisis, however, this disparagement is based on a false claim or fake news; thus, we call it a pseudo-product-harm crisis. Using a pseudo-product-harm crisis event that involved two competing firms, this research examines how consumer sentiments about the two firms evolved in response to the crisis. (...) Our analyses show that while both firms suffered, the damage to the offending firm was more detrimental, in terms of advertising effectiveness and negative news publicity, than that to the victim firm. Our study indicates that, even apart from ethical concerns, the false claim about the victim firm was not an effective business strategy to increase the offending firm’s performance. (shrink)

This study was designed to examine the prevalence of a code of ethics and to analyze its content among public relations agencies in the United States. Of the 1,562 public relations agencies reviewed, 605 (38.7%) provided an ethical statement. Among the ethical statements provided by these public relations agencies, ‹respect to clients,’ ‹service,’ ‹strategic,’ and ‹results’ were the values most frequently emphasized. On the other hand, ‹balance,’ ‹fairness,’ ‹honor,’ ‹social responsibility,’ and ‹independence’ were the least frequently mentioned in the ethical (...) codes. Also, none of the sampled agencies included any sanctions regarding enforcement of their particular codes of ethics. (shrink)

This study explores the relationship between Hofstede’s cultural dimensions and public relations practitioners’ perceptions of corporate social respon- sibility in South Korea. The survey on Korean public relations practitioners revealed that, although Hofstede’s dimensions significantly affect public relations practitioners’ perceptions of CSR, social traditionalism values had more explanatory power than cultural dimensions in explaining CSR attitudes. The results suggest that practitioners’ fundamental ideas about the corporation’s role in society seem to be more important than their cultural values to understand public (...) relations practitioners’ CSR attitudes in Korea. (shrink)

Alzheimer's disease (AD) is the most common cause of dementia, and there is currently no cure. The “β‐amyloid cascade hypothesis” of AD is the basis of current understanding of AD pathogenesis and drug discovery. However, no AD models have fully validated this hypothesis. We recently developed a human stem cell culture model of AD by cultivating genetically modified human neural stem cells in a three‐dimensional (3D) cell culture system. These cells were able to recapitulate key events of AD pathology including (...) β‐amyloid plaques and neurofibrillary tangles. In this review, we will discuss the progress and current limitations of AD mouse models and human stem cell models as well as explore the breakthroughs of 3D cell culture systems. We will also share our perspective on the potential of dish models of neurodegenerative diseases for studying pathogenic cascades and therapeutic drug discovery. (shrink)

Modern schooling in Korea, which was officially established by law in 1949, is well known for its function as an engine of economic success in modern Korea. Although this fact seems to be world-wid...

This study explores the relationship between Hofstede’s cultural dimensions and public relations practitioners’ perceptions of corporate social respon- sibility (CSR) in South Korea. The survey on Korean public relations practitioners revealed that, although Hofstede’s dimensions significantly affect public relations practitioners’ perceptions of CSR, social traditionalism values had more explanatory power than cultural dimensions in explaining CSR attitudes. The results suggest that practitioners’ fundamental ideas about the corporation’s role in society seem to be more important than their cultural values to understand (...) public relations practitioners’ CSR attitudes in Korea. (shrink)

With regard to facial emotion recognition, previous studies found that specific facial regions were attended more in order to identify certain emotions. We investigated whether a preferential search for emotion-specific diagnostic regions could contribute toward the accurate recognition of facial emotions. Twenty-three neurotypical adults performed an emotion recognition task using six basic emotions: anger, disgust, fear, happiness, sadness, and surprise. The participants’ exploration patterns for the faces were measured using the Moving Window Technique (MWT). This technique presented a small window (...) on a blurred face, and the participants explored the face stimuli through a mouse-controlled window in order to recognize the emotions on the face. Our results revealed that when the participants explored the diagnostic regions for each emotion more frequently, the correct recognition of the emotions occurred at a faster rate. To the best of our knowledge, this current study is the first to present evidence that an exploration of emotion-specific diagnostic regions can predict the reaction time of accurate emotion recognition among neurotypical adults. Such findings can be further applied in the evaluation and/or training (regarding emotion recognition functions) of both typically and atypically developing children with emotion recognition difficulties. (shrink)

The slandering of a firm’s products by competing firms poses significant threats to the victim firm, with the resulting damage often being as harmful as that from product-harm crises. In contrast to a true product-harm crisis, however, this disparagement is based on a false claim or fake news; thus, we call it a pseudo-product-harm crisis. Using a pseudo-product-harm crisis event that involved two competing firms, this research examines how consumer sentiments about the two firms evolved in response to the crisis. (...) Our analyses show that while both firms suffered, the damage to the offending firm (which spread fake news to cause the crisis) was more detrimental, in terms of advertising effectiveness and negative news publicity, than that to the victim firm (which suffered from the false claim). Our study indicates that, even apart from ethical concerns, the false claim about the victim firm was not an effective business strategy to increase the offending firm’s performance. (shrink)

The present study explores a neglected area of ethical leadership: lateral behavioral effect from peer team leaders as a key predictor of ethical leadership. Using the lens of social learning theory, we posit that peer team leader ethical voice fosters focal team leader ethical leadership through team leader moral efficacy. In line with social learning perspective, we also posit the moderating effect of ethical role modeling of peer team leader in relationship between peer team leader ethical voice and team leader (...) moral efficacy. We conducted a two-wave study over a 6-week interval between waves from military teams. Our results provided support for all of our hypotheses. In addition, we also found an incremental validity of peer ethical voice behavior by controlling other relevant factors such as upper leaders’ ethical role modeling and peer ethical leadership. Our findings contribute to the advancement of ethical leadership literature by articulating a novel antecedent as well as its boundary condition. (shrink)