Music as a Management Tool in Elementary Physical Education: A Qualitative Investigation

Classroom management is an important aspect for a K–12 teacher in any content area. The same applies in physical education (PE). In PE, there are large spaces, students are moving, and in many cases, equipment (basketballs, rackets, Hula-Hoops, etc.) is involved, thus making PE a unique challenge in regard to classroom management for PE teachers. One tool an elementary PE teacher can use for classroom management is music. For this study, one school administrator, 19 elementary-aged students, and one PE teacher were interviewed about their perceptions of music as a management tool in elementary PE. Findings indicate that students prefer music as a management tool rather than the PE teacher using a whistle or loud voice.

Reconciling Authenticity and Reenactment

Locating authenticity in artworks that are remade (all or in part) or re-performed over time presents a unique challenge for art conservators, whose activities have traditionally been oriented toward caring for the material aspects of art objects. The paper offers a brief overview of perspectives on authenticity and discusses various theoretical models that have been developed to conceptualize how media, installation, and performance artworks are displayed and cared for over time. These include the score/performance model, the concepts of autographicity and allographicity, the concept of iteration, and authenticity as a practice. The author proposes a theoretical model based on the ritual aspects of presenting artworks, arguing that authenticity, repetition, and community participation can be reconciled within a ritual context.

Never have a crisis like COVID-19

Current circumstances caused by COVID-19 pandemic pose a unique challenge to businesses. How could businesses survive? What strategic options do businesses have when they effectively engage such a challenge? Delving into the inquiry, we explore and investigate different strategic approaches to measure their effectiveness. For the study’s explorative and investigative purposes, our investigation involves a set of tests at both business and corporate levels. Using 224 responses from the leaders and key individuals of Korean startups, we tested the effectiveness of strategic options using the notion of ambidexterity and alliances, and mergers and acquisitions. Using the ambidexterity lens, we found exploitation and exploration indirectly affect firm performances and are still effective under COVID-19. We also found “reinforcing the relationship with existing alliances,” a corporate-level approach, to be effective.

Validation of Sonographic Fronto-Occipital Ratio Based on Anatomical Landmarks compared to MR/CT-Derived Indexes in Children with Chiari II and Ventriculomegaly

Introduction: Ultrasound (US) based indexes such as fronto-occipital ratio (FOR) can be used to obtain an acceptable estimation of ventricular volume. Patients with colpocephaly present a unique challenge due to the shape of their ventricles. In the present study, we aim to evaluate the validity and reproducibility of modified US-FOR index in children with Chiari II-related ventriculomegaly. Methods: In this retrospective study, we evaluated Chiari II patients younger than one year who underwent head US and MR or CT scans for ventriculomegaly evaluation. MR/CT based FOR was measured in the axial plane by identifying the widest diameter of frontal horns, occipital horns, and the interparietal diameter (IPD). US based FOR (US-FOR) was measured using the largest diameter based on the following landmarks: frontal horn and IPD in the coronal plane at the level of the foramen of Monro, IPD just superior to the Sylvian fissures, and occipital horn posterior to the thalami and inferior to the superior margins of the thalami. Interclass correlation coefficients (ICC) were used to evaluate inter-rater reliability and Pearson correlation coefficients and Bland-Altman plots were applied to assess agreement between US and other two modalities. Results: Ninety paired US and MR/CT exams were assessed for agreement between US-FOR and MR/CT-FOR measurements. ICC showed an excellent inter-rater reliability for US-FOR (ICC=0.99, p<0.001) and MR/CT-FOR measurements (ICC=0.99, p<0.001). The mean (range) values based on US-FOR showed a slight overestimation in comparison to MR/CT-FOR [0.51 (0.36-0.68) vs 0.46 (0.34-0.64)]. Pearson correlation coefficient showed high cross-modality agreement for the FOR index (r=0.83, p<0.001). Bland-Altman plot showed excellent concordance between US-FOR and MR/CT-FOR with a bias of 0.05 (95% CI, -0.03-0.13) Conclusion: US-FOR in the coronal plane is a comparable tool for evaluating ventriculomegaly in Chiari II patients when compared with MR/CT-FOR, even in the context of colpocephaly.

In Vitro Anti-Biofilm Activity of Hydrogen-Peroxide Generating Electrochemical Bandage Against Yeast Biofilms

Wound infections are caused by bacteria and/or fungi. The presence of fungal biofilms in wound beds presents a unique challenge, as fungal biofilms may be difficult to eradicate. The goal of this work was to assess the in vitro anti-biofilm activity of a H 2 O 2 -producing electrochemical bandage (e-bandage) against 15 yeast isolates representing commonly-encountered species. Time-dependent decreases in viable biofilm CFU counts of all isolates tested were observed, resulting in no visible colonies with 48 hours of exposure by plate culture. Fluorescence microscopic analysis showed extensive cell membrane damage of biofilm cells after e-bandage treatment. Reductions in intracellular ATP levels of yeast biofilm cells were recorded post e-bandage treatment. Our results suggest that exposure to H 2 O 2 -producing e-bandages reduce in vitro viable cell counts of yeast biofilms, making this a potential new topical treatment approach for fungal wound infections.

Music to My Ears: Developing Kanji Stroke Knowledge through an Educational Music Game

Millions of people worldwide are taking up foreign languages with logographic writing systems, such as Japanese or Chinese. Learning thousands of characters necessary for literacy in those languages is a unique challenge to those coming from alphabetic backgrounds, and sustaining motivation in the face of such a momentous task is a struggle for many students. Many games exist for this purpose, but few offer production memory practice such as writing, and the vast majority are thinly veiled flashcards. To address this gap, we created Radical Tunes—a musical kanji-writing game—which combines production practice with musical mnemonic by assigning a melody to each element of a character. We chose to utilize music as it is a powerful tool that can be employed to enhance learning and memory. In this article, we explore whether incorporating melodies into a kanji learning game can positively affect the memorization of the stroke order/direction and overall shape of several Japanese characters, similar to the mnemonic effect of adding music to text. Specifically, we conducted two experimental studies, finding that (1) music improved immersion—an important factor related to learning; and (2) there was a positive correlation between melody presence and character production, particularly for more complex characters.

Are Community Coalitions a Better Mechanism to Advance Health Equity? A Narrative Review

Background/Objective: Despite increasing emphasis on health equity in policy, leadership, and program development, meaningful advancement in health equity remains a challenge. A comprehensive review of community health coalition efforts to improve health equity has not been conducted. In this narrative review, we examine what evidence exists that community health coalitions can advance health equity, and whether coalitions are a preferred approach to address health equity. Methods: PubMed, CINAHL, PsycINFO, and Web of Science were searched for peer-reviewed, English articles with no date restrictions. In total, 1256 records were screened, of which 1163 were excluded for duplicate publications, no coalition or coalition-based intervention, no relevant outcomes, no emphasis on health equity or disparities, not primary literature, or unavailable full text. The remaining 93 articles are presented as a table of interventions based on outcomes. Further, evaluations of coalition effectiveness with controls are reviewed. Results: Populations of interest were racial and ethnic minorities, women and girls, low socioeconomic status communities, rural and urban areas, older adults, and LGBTQ groups. The most commonly reported results were changes in health outcomes or behaviors and community or organizational policy. Few studies were randomized, double-blinded, or controlled trials. This is not unexpected given the difficult nature of evaluating community interventions. Very few studies evaluated the effectiveness of a coalition-based intervention as compared to organizational interventions. Conclusion, Impact, & Implications: Available literature suggests that health coalitions influence health outcomes, policies, and important social determinants of health in populations affected by health inequity. However, community intervention studies pose a unique challenge for high quality evaluation. While health coalitions have a positive influence on health equity, more research is needed to determine the advantages of health coalition interventions versus organizational interventions.

The novelty-centered business model: a transition mechanism between exploration and exploitation in SMEs

PurposeAs the transition between exploration and exploitation is a unique challenge for SMEs, what mechanism(s) might facilitate this transition? Building on the entrepreneurship literature's entrepreneurial opportunity identification and development framework, this study hypothesizes that the novelty-centered business model (NCBM) may serve as such a mechanism.Design/methodology/approachBased on cross-sectional survey data collected from 169 Italian SMEs in various sectors, this study tests the mediation, moderation and moderated mediation relationships using the statistical PROCESS procedure.FindingsSupporting the hypotheses that exploration and exploitation are positively associated within SMEs, that NCBM mediates this relationship and that the indirect relationship between exploration and exploitation by way of NCBM is stronger for SMEs with employees of medium to high creative human capital, the results suggest that SMEs can more effectively exploit new ideas identified in the exploration phase by developing an NCBM and accessing their creative human capital.Research limitations/implicationsAlthough the robustness checks confirm the direction of the proposed hypotheses, given the cross-sectional nature of the dataset used, a longitudinal study would further validate the proposed framework.Practical implicationsSMEs can successfully achieve the transition between exploration and exploitation by reinventing their business model to compensate for their limited resources in terms of financial or relational capital. They can further enhance their ability to reinvent their business model and, in turn, to exploit innovations by hiring and retaining employees with greater creative human capital.Originality/valueThis study draws on the entrepreneurial opportunity, ambidexterity (exploration-exploitation) and business model literature to enhance our understanding of the role of the NCBM design concept (business model innovation) as a mechanism to achieve temporal ambidexterity in SMEs.

Learning to Expect the Predictable: The Role of Expectation in the Cognitive Control of Attention

<p>Some of the visual world is relevant to our goals and needs. Much more is not. A problem we face frequently in day-to-day living is that we are distracted by what is not relevant to our goals at the cost of attention towards what is. Emotional stimuli in particular have been shown to be very effective distractors, out-competing task-relevant stimuli for our attentional resources (Carretié, 2014; Pessoa, 2005; Pourtois et al., 2013). How often emotional distractors occur can alter our ability to ignore them and remain task focussed (Grimshaw et al., 2018; Schmidts et al., 2020). The Dual Mechanisms of Control framework (Braver et al., 2007; Braver, 2012) suggests that, because we can expect upcoming distractors when they occur frequently, we can effectively avoid distraction through proactive control; the use of effortful preparatory cognitive control strategies. That said, when distractors are frequent, we also become more experienced with them, and resolving the attentional conflict they create. The present investigation spanned two experiments assessing whether expectation of upcoming distractors would elicit proactive control while holding the experience of previous distractors constant. In Experiment 1 participants performed a simple perceptual task at fixation while neutral or negative task irrelevant images appeared peripherally on 25% of trials, either predictably in sequence (every fourth trial) or randomly. Expectation of distraction did not improve participants’ ability to avoid emotional distraction. A paradoxical expectation effect was also found wherein distraction was increased rather than decreased when distractors occurred predictably. In Experiment 2 distractors appeared either predictably (every fourth trial), on a random 25% of trials, or on a random 75% of trials. However, neutral and emotional images were now presented at fixation with the perceptual task presented above and below. Greater distractor frequency led to lower distraction and expectation of upcoming distractors again did not improve control, although a paradoxical increase in distraction was not replicated. Findings indicate that expectation of upcoming distractors alone is not sufficient to drive individuals to implement proactive control. Rather, distractor frequency is suggested to drive proactive control through implicit changes in top-down control settings based on experience. While the processes behind experience-driven proactive control are unclear, conflict adaptation and selection history are discussed as possible mechanisms of experience driven proactive control. Critically, present findings also indicate that emotional stimuli may present a unique challenge to our ability to control our attention.</p>

Learning to Expect the Predictable: The Role of Expectation in the Cognitive Control of Attention

<p>Some of the visual world is relevant to our goals and needs. Much more is not. A problem we face frequently in day-to-day living is that we are distracted by what is not relevant to our goals at the cost of attention towards what is. Emotional stimuli in particular have been shown to be very effective distractors, out-competing task-relevant stimuli for our attentional resources (Carretié, 2014; Pessoa, 2005; Pourtois et al., 2013). How often emotional distractors occur can alter our ability to ignore them and remain task focussed (Grimshaw et al., 2018; Schmidts et al., 2020). The Dual Mechanisms of Control framework (Braver et al., 2007; Braver, 2012) suggests that, because we can expect upcoming distractors when they occur frequently, we can effectively avoid distraction through proactive control; the use of effortful preparatory cognitive control strategies. That said, when distractors are frequent, we also become more experienced with them, and resolving the attentional conflict they create. The present investigation spanned two experiments assessing whether expectation of upcoming distractors would elicit proactive control while holding the experience of previous distractors constant. In Experiment 1 participants performed a simple perceptual task at fixation while neutral or negative task irrelevant images appeared peripherally on 25% of trials, either predictably in sequence (every fourth trial) or randomly. Expectation of distraction did not improve participants’ ability to avoid emotional distraction. A paradoxical expectation effect was also found wherein distraction was increased rather than decreased when distractors occurred predictably. In Experiment 2 distractors appeared either predictably (every fourth trial), on a random 25% of trials, or on a random 75% of trials. However, neutral and emotional images were now presented at fixation with the perceptual task presented above and below. Greater distractor frequency led to lower distraction and expectation of upcoming distractors again did not improve control, although a paradoxical increase in distraction was not replicated. Findings indicate that expectation of upcoming distractors alone is not sufficient to drive individuals to implement proactive control. Rather, distractor frequency is suggested to drive proactive control through implicit changes in top-down control settings based on experience. While the processes behind experience-driven proactive control are unclear, conflict adaptation and selection history are discussed as possible mechanisms of experience driven proactive control. Critically, present findings also indicate that emotional stimuli may present a unique challenge to our ability to control our attention.</p>