The relationship between individuality and aggregation is an important topic in Complex Systems Science, as both aspects are facets of emergence. This problem has generally been addressed by adopting a classical individual- versus population-level approach, in which boundaries emerge in segregated communities. More specifically, boundaries delimiting and interconnecting aggregates are at play. …
What does it mean to take actions of one’s own to learn? How do human beings create meaning for themselves and with others? How can learners’ active efforts to build knowledge be encouraged and supported? In this edited compilation, scholars from a diverse range of academic and professional backgrounds address these questions, grounded in the conviction that the ability to take effective ac…
The topic of bioenergy is a multidisciplinary one, where the use of resources and skills can be optimized for the development of sustainable models. It is a time for green strategies, but also for action. It is, therefore, necessary to implement projects that address virtuous examples of the circular bioeconomy. All politicians are called on to contribute, because this global goal can only be a…
The topic of bioenergy is a multidisciplinary one, where the use of resources and skills can be optimized for the development of sustainable models. It is a time for green strategies, but also for action. It is, therefore, necessary to implement projects that address virtuous examples of the circular bioeconomy. All politicians are called on to contribute, because this global goal can only be a…
The article discusses the question “What makes Popular Christian Music ‘popular’?” by applying different (competing) concepts of the term “popular” so as to showcase by which criteria Popular Christian Music (labelled as Contemporary Christian Music by the US music industry) can be described as “popular”. Thereby, the article compares both Anglo-American and German-language Chri…
Popular music’s use of visual media makes its listeners also its viewers. From concert posters, tickets stubs and stage design to music videos, CD covers and clothes, material visual products are utilized by bands and fans alike to emphasize their sound, represent ideas or lyrics, self-stylize, sell the product and generate recognition for their in-group. As with other forms of popular cultur…
This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researcher…
Acousto-optic technologies have increasingly attracted the attention of scientists and engineers. Acousto-optic interactions have become the flexible basis of compact and robust devices for the analysis of the intensity, spectrum, polarization, and other properties of light. In this book, modern trends of acousto-optical spectral technologies, including the fundamentals and optimization of exis…
It seems as if the fundamentals of how we produce vowels and how they are acoustically represented have been clarified: we phonate and articulate. Using our vocal chords, we produce a vocal sound or noise which is then shaped into a specific vowel sound by the resonances of the pharyngeal, oral, and nasal cavities, that is, the vocal tract. Accordingly, the acoustic description of vowels relate…
This book deals with acoustic wave interaction with different materials, such as porous materials, crystals, biological tissues, nanofibers, etc. Physical phenomena and mathematical models are described, numerical simulations and theoretical predictions are compared to experimental data, and the results are discussed by evoking new trends and perspectives. Several approaches and applications ar…