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“How can we develop microbial ecological theory?” The development of microbial ecological theory has a long way to reach its goal. Advances in microbial ecological techniques provide novel insights into microbial ecosystems. Articles in this book are challenging to determine the central and general tenets of the ecological theory that describes the features of microbial ecosystems. Their achievements expand the frontiers of current microbial ecology and propose the next step. Assemblage of these diverse articles hopefully helps to go on this long journey with many avenues for advancement of microbial ecology.

ecological theory --- self-organization --- complex systems --- simulation --- mathematical modeling --- interspecies interaction --- Microbial ecosystems --- evolution --- resilience --- Dynamic equilibrium

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Biophysical modelling of brain activity has had a long and illustrious history and has during the last few years profited from technological advances that allow obtaining neuroimaging data at an unprecedented spatiotemporal resolution. It is a very active area of research with applications ranging from the characterization of neurobiological and cognitive processes to constructing artificial brains in silico and building brain-machine interface and neuroprosthetic devices. The relevant community has always benefited from interdisciplinary interactions between different and seemingly distant fields ranging from mathematics and engineering to linguistics and psychology. This Research Topic aims to promote such interactions and we welcome all works related or that can contribute to an understanding of and construction of models for neural activity. The focus will be on biophysical models describing brain activity usually measured by fMRI or electrophysiology. Such models can be divided into two large classes: neural mass and neural field models. The main difference between these two classes is that field models prescribe how a quantity characterizing neural activity (such as average depolarization of a neural population) evolves over both space and time as opposed to mass models which characterize the evolution of this quantity over time only and assume that all neurons of a population are located at (approximately) the same point. This Research Topic will focus on both classes of such models and discuss several of their aspects and relative merits focusing on the main ideas of neural field and mass theories that span from synapses to the whole brain, comparisons of their predictions with EEG and MEG spectra of spontaneous brain activity, evoked responses, seizures, and fitting to data to infer brain states and map physiological parameters. We welcome submissions shedding light on the underlying dynamics within the neural tissue that can yield explanations of disorders such as epilepsy and migraine as well as normal functions such as attention, working memory and decision making and encourage papers reporting new theoretical and/or modelling work as well as advances in experimental methods that can benefit modelling endeavours. The aim of this Research Topic is to provide a forum for state-of-the-art research in the field and foster new theoretical advances.

Calculus --- Mathematics --- Physical Sciences & Mathematics --- neural disorders --- self-organization --- Electroencephalogram --- neural networks --- Electrophysiology --- Integro-differential equations --- neural field theory --- neural masses --- oscillations --- anaesthesia

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Was machen Menschen eigentlich, wenn sie in Projekten arbeiten? Die Frage mag trivial anmuten. Arbeits- und Organisationssoziologie haben Projekte erforscht, jedoch immer nur aus ihrem je spezifischen Blickwinkel. Yannick Kalff überwindet diese Trennung und nimmt die Performativität von Projekten in den Blick, welche sich aus zwei Komponenten zusammensetzt: In Projekten arbeiten Menschen an der Organisation - und sie organisieren ihre Arbeit. Für ein Verständnis der Selbstorganisation und der Planung in Projekten bietet diese Studie einen empirisch gestützten, konzeptionellen Rahmen, welcher die soziale Praxis und die konkreten organisierenden Tätigkeiten ausleuchtet.

Organisation; Projekte; Selbstorganisation; Projektarbeit; Projektorganisation; Projektmanagement; Planung; Arbeit; Arbeits- und Industriesoziologie; Organisationssoziologie; Soziologische Theorie; Soziologie; Organization; Projects; Self-organization; Project Work; Planning; Work; Sociology of Work and Industry; Sociology of Organizations; Sociological Theory; Sociology --- Planning. --- Project Work. --- Projects. --- Self-organization. --- Sociological Theory. --- Sociology of Organizations. --- Sociology of Work and Industry. --- Sociology. --- Work.

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Physics --- Cybernetics --- Physique --- Cybernétique --- Periodicals. --- Périodiques --- nonlinear dynamics --- self-organization --- control --- bifurcations --- quantum --- Cybernetics. --- Physics. --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Dynamics --- Mechanical brains --- Control theory --- Electronics --- System theory --- Physics - General

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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 researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact

Science: general issues --- Physiology --- complexity --- fractality --- non-stationarity --- fractional calculus --- homeostasis --- smart medical devices --- critical phenomena and its implications --- emergence --- self-organization --- robustness --- physiological resiliency --- quality-of-life physiological control --- cyber-physical systems