Food Culture in Youth Athletics: Exploration of the Beliefs in USA Stakeholders

Objectives. The present study examined beliefs surrounding food culture in youth athletics. Design. Qualitative research. Methods. Coaches (n = 62), parents (n = 161), and youth athletes (n = 40) in the USA completed questionnaires that explored aspects of the food environment of youth athletics, including practices related to food and beverage consumption and perspectives on the nutritional value of available foods and beverages. Results. Coaches, parents, and athletes all reported a high number of available foods and beverages, and were mixed both about whether these were healthy or unhealthy, and whether the availability of unhealthy foods and beverages was problematic. Conclusions. This study aimed to add to the literature an examination of multiple perspectives on the current food culture in youth athletics. Participant perspectives suggest that the food environment of youth sport may be an unhealthy mismatch with the physical, social, and psychological benefits of participation. Further research could aim to identify optimal environments for promoting health in youth sport. Limitations and additional directions for future research are discussed.

Multi-label feature selection based on fuzzy neighborhood rough sets

Multi-label feature selection, a crucial preprocessing step for multi-label classification, has been widely applied to data mining, artificial intelligence and other fields. However, most of the existing multi-label feature selection methods for dealing with mixed data have the following problems: (1) These methods rarely consider the importance of features from multiple perspectives, which analyzes features not comprehensive enough. (2) These methods select feature subsets according to the positive region, while ignoring the uncertainty implied by the upper approximation. To address these problems, a multi-label feature selection method based on fuzzy neighborhood rough set is developed in this article. First, the fuzzy neighborhood approximation accuracy and fuzzy decision are defined in the fuzzy neighborhood rough set model, and a new multi-label fuzzy neighborhood conditional entropy is designed. Second, a mixed measure is proposed by combining the fuzzy neighborhood conditional entropy from information view with the approximate accuracy of fuzzy neighborhood from algebra view, to evaluate the importance of features from different views. Finally, a forward multi-label feature selection algorithm is proposed for removing redundant features and decrease the complexity of multi-label classification. The experimental results illustrate the validity and stability of the proposed algorithm in multi-label fuzzy neighborhood decision systems, when compared with related methods on ten multi-label datasets.

Zinc Anode for Mild Aqueous Zinc-Ion Batteries: Challenges, Strategies, and Perspectives

The rapid advance of mild aqueous zinc-ion batteries (ZIBs) is driving the development of the energy storage system market. But the thorny issues of Zn anodes, mainly including dendrite growth, hydrogen evolution, and corrosion, severely reduce the performance of ZIBs. To commercialize ZIBs, researchers must overcome formidable challenges. Research about mild aqueous ZIBs is still developing. Various technical and scientific obstacles to designing Zn anodes with high stripping efficiency and long cycling life have not been resolved. Moreover, the performance of Zn anodes is a complex scientific issue determined by various parameters, most of which are often ignored, failing to achieve the maximum performance of the cell. This review proposes a comprehensive overview of existing Zn anode issues and the corresponding strategies, frontiers, and development trends to deeply comprehend the essence and inner connection of degradation mechanism and performance. First, the formation mechanism of dendrite growth, hydrogen evolution, corrosion, and their influence on the anode are analyzed. Furthermore, various strategies for constructing stable Zn anodes are summarized and discussed in detail from multiple perspectives. These strategies are mainly divided into interface modification, structural anode, alloying anode, intercalation anode, liquid electrolyte, non-liquid electrolyte, separator design, and other strategies. Finally, research directions and prospects are put forward for Zn anodes. This contribution highlights the latest developments and provides new insights into the advanced Zn anode for future research.

Impact of the epidemic on the world economy

The impact of the epidemic on the global economy has exposed the fragility and complexity of the internal and external economic system, and the global economic situation is not optimistic. Taking the epidemic as an example, this paper analyzed the impact of emergencies on the global economy from multiple perspectives. The outbreak of the epidemic has made most offline businesses shut down overnight. At the same time, it has also led to the rapid development of online economy, such as online education, home office software, video entertainment and so on. The outbreak and spread of the epidemic has promoted the digital upgrading of all walks of life, including online government affairs, commerce, science, education, culture and health organization, operation and maintenance. The era of digital economy has come, and digitization is the general trend.

Diesel-Like Biofuels Production Using Fatty Waste

According to the waste-to-energy (WTE) valorization and circular economy principles, the use of waste oil and grease (WOG) for obtaining biofuels shows the tendency towards sustainability, makes the interest in green chemistry, and the development of environmentally friendly processes grow. Three different fatty wastes (from the fat trap of a sewage station, lard waste, and frying oil) were analyzed and this work showed they have no potentially toxic metals. The frying oil sample and residual lard waste showed a higher percentage of triacylglycerides resulting in higher biodiesel conversion. The samples showed physical and chemical properties (density, viscosity, and ash) within the limits established by current regulations. Bio-oil samples formed a mixture of carboxylic acids, with high acidity. However, the parameters that deviated from the maximum permitted by the standard could be adjusted blending with petroleum diesel, replacing partially the fossil energy carriers with biomass-derived energy carriers which could bring positive impacts from multiple perspectives, i.e., economic, environmental, and health.

Multiple perspectives integration for virtual reality-aided assemblability assessment in narrow assembly spaces

Virtual reality (VR) has been proved as a promising tool for industrial design, but the traditional VR interface of first-person perspective (1PP) is not efficient to support assemblability assessment in narrow assembly spaces. In this paper, we proposed the multi-perspectives interface (MPI) which integrates the 1PP and the third-person perspective (3PP) using the handheld world-in-miniature (WIM). The MPI allows users to simulate the assembly operations in a natural manner similar to 1PP, while providing users with an overview of the assembly status through the WIM to assess the assemblability with superior spatial awareness. Two studies were conducted to test the performance of the proposed MPI. The first study tested user’s interaction performance in MPI using a common interaction task, which reveals stronger spatial awareness in MPI than in 1PP without the cost of losing natural interaction. Based on the results of the first study, the second study tested the performance, usability, and workload of MPI in an assemblability assessment task. The results show the advantages of MPI in the reachability evaluation in the narrow spaces. The main contribution of this paper is improving the interface and user-interface interaction in VR-aided assembly assessment system to improve user’s interaction performance and assessment ability in narrow assembly spaces.

The Contribution of Serious Games for the Success of Students in Entrepreneurship

The adoption of serious games as a complement to traditional classroom training is still an emerging theme, but it offers relevant potentialities for both students and teachers. This study describes the integration process of serious games in an entrepreneurship course over five years (2014-2018). In the first three years, the ENTRExplorer was adopted, while in the last two years the FLIGBY was used. The experience of using entrepreneurship serious games is analyzed according to multiple perspectives, such as complexity, generation of more entrepreneurial or group working skills, engagement, interactivity, learning outcomes, or even the impact on the intention to establish a new venture. The findings allowed a comparative analysis of the two games, indicating significant differences in some of those dimensions. Nevertheless, the learning outcomes provided by each game were considered relevant by the students, showing that both games can be useful in the process of learning and acquiring entrepreneurship competencies.

HRM in the Tourism Industry

This chapter aims to analyze the research from the last 20 years about human resources management in the tourism industry. The research question is: What are the contributions of the international publications on human resources management and tourism in the Web of Science and Scopus databases in the last two decades? In order to accomplish this goal, the research methodology will be a literature survey using the Scopus and WoS databases. To develop this research, first, it will be performed a literature review on HRM as strategic value, and also on the multiple perspectives of the concept of tourism. Moreover, it will be made state of the art on human resources management in the tourism industry. Furthermore, the results of the literature survey are presented. The main findings show that there is still a need for more production about human resources management in the tourism industry, which was based on the importance of one segment to the other, as well as the infinite possibilities of incremental actions that allow a mutual benefit between these two fields.

Enacting Ought: Ethics, Anti-Racism, and Interactional Possibilities

Focusing on political and interpersonal conflict in the U.S., particularly racial conflict, but with an eye to similar conflicts throughout the world, we argue that the enactive approach to mind as life can be elaborated to provide an exigent framework for present social-political problems. An enactive approach fills problematic lacunae in the Western philosophical ethics project by offering radically refigured notions of responsibility and language. The dual enactive, participatory insight is that interactional responsibility is not singular and language is not an individual property or ability, something that someone simply and uniformly 'has' or 'controls'. These points have not been integrated into our self-understanding as moral actors, to everyone’s detriment. We first advocate for adequate appreciation of Colombetti and Torrance’s 2009 suggestion that participatory sense-making necessarily implies shared responsibility for interactional outcomes. We argue that the enactive approach presents open-ended cultivation of virtue as embodied, contextualized, and dynamic know-how and destabilizes an individualist metaphysics. Putting this framework to work, we turn to the interactional challenges of conversations that concern differences and that involve potentially oppositional parties, offering a reading of Claudia Rankine’s Just Us. Finally, we make explicit Rankine’s normative project of mindful navigation of multiple perspectives in an interaction. We abstract three interrelated spheres of participatory intervention: location, language, and labor. These also indicate routes for empirical investigation into complex perspective-taking in dynamic interactions.

Social movements in a time of pandemic: The case of Tech4Covid19 in Portugal

The COVID-19 pandemic had a strong impact on Portuguese society and raised the need for new technological projects to help frontline professionals in the fight against coronavirus and its effects on the local population and economic agents. It is in this context that the Tech4Covid19 movement was founded by Portuguese technological startups. This initiative brings together more than 5000 volunteers and offers technological solutions in the areas of health, education, and local economy. This study aims to understand and explore the organizational model and dynamics of Tech4Covid19 through the adoption of qualitative methods based on primary and secondary sources that have allowed the movement to be explored from multiple perspectives. The findings reveal that Tech4Covid internally promotes the development of its own projects, but also accepts projects proposed by external entities that are aligned with the principles and values of the movement. The organization of the movement is supported by autonomous self-managed teams regarding each project, and there is a coordination group responsible for the aggregate management of the various initiatives and for establishing communication with partners, the media, and social networks.