Flowing Matter

This open access book, published in the Soft and Biological Matter series, presents an introduction to selected research topics in the broad field of flowing matter, including the dynamics of fluids with a complex internal structure -from nematic fluids to soft glasses- as well as active matter and turbulent phenomena. Flowing matter is a subject at the crossroads between physics, mathematics, chemistry, engineering, biology and earth sciences, and relies on a multidisciplinary approach to describe the emergence of the macroscopic behaviours in a system from the coordinated dynamics of its microscopic constituents. Depending on the microscopic interactions, an assembly of molecules or of mesoscopic particles can flow like a simple Newtonian fluid, deform elastically like a solid or behave in a complex manner. When the internal constituents are active, as for biological entities, one generally observes complex large-scale collective motions. Phenomenology is further complicated by the invariable tendency of fluids to display chaos at the large scales or when stirred strongly enough. This volume presents several research topics that address these phenomena encompassing the traditional micro-, meso-, and macro-scales descriptions, and contributes to our understanding of the fundamentals of flowing matter. This book is the legacy of the COST Action MP1305 “Flowing Matter”.

This open access book, published in the Soft and Biological Matter series, presents an introduction to selected research topics in the broad field of flowing matter, including the dynamics of fluids with a complex internal structure -from nematic fluids to soft glasses- as well as active matter and turbulent phenomena. Flowing matter is a subject at the crossroads between physics, mathematics, chemistry, engineering, biology and earth sciences, and relies on a multidisciplinary approach to describe the emergence of the macroscopic behaviours in a system from the coordinated dynamics of its microscopic constituents. Depending on the microscopic interactions, an assembly of molecules or of mesoscopic particles can flow like a simple Newtonian fluid, deform elastically like a solid or behave in a complex manner. When the internal constituents are active, as for biological entities, one generally observes complex large-scale collective motions. Phenomenology is further complicated by the invariable tendency of fluids to display chaos at the large scales or when stirred strongly enough. This volume presents several research topics that address these phenomena encompassing the traditional micro-, meso-, and macro-scales descriptions, and contributes to our understanding of the fundamentals of flowing matter. This book is the legacy of the COST Action MP1305 “Flowing Matter”.

This open access book, published in the Soft and Biological Matter series, presents an introduction to selected research topics in the broad field of flowing matter, including the dynamics of fluids with a complex internal structure -from nematic fluids to soft glasses- as well as active matter and turbulent phenomena. Flowing matter is a subject at the crossroads between physics, mathematics, chemistry, engineering, biology and earth sciences, and relies on a multidisciplinary approach to describe the emergence of the macroscopic behaviours in a system from the coordinated dynamics of its microscopic constituents. Depending on the microscopic interactions, an assembly of molecules or of mesoscopic particles can flow like a simple Newtonian fluid, deform elastically like a solid or behave in a complex manner. When the internal constituents are active, as for biological entities, one generally observes complex large-scale collective motions. Phenomenology is further complicated by the invariable tendency of fluids to display chaos at the large scales or when stirred strongly enough. This volume presents several research topics that address these phenomena encompassing the traditional micro-, meso-, and macro-scales descriptions, and contributes to our understanding of the fundamentals of flowing matter. This book is the legacy of the COST Action MP1305 "Flowing Matter". This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.

The book "Flowing Harmony: Navigating The Riverine Ecosystem" delves into the intricate dynamics and rich biodiversity of river ecosystems, offering a comprehensive exploration of their ecological significance and the myriad interactions that shape their existence. Authored by esteemed environmental scientists and ecologists, this seminal work serves as a beacon illuminating the importance of rivers as lifelines of the planet. The book begins by laying a foundation of understanding, elucidating the fundamental components of riverine ecosystems. It navigates through the diverse habitats encompassed within river systems, from the headwaters to the estuaries, unravelling the unique adaptations of flora and fauna that thrive in each niche. Through meticulous research and vivid descriptions, the authors paint a vivid portrait of the interconnectedness of life along the riverbanks. One of the central themes explored in the book is the intricate web of relationships that sustains river ecosystems. Readers are introduced to the concept of trophic cascades and the pivotal role played by keystone species in maintaining ecological balance. From the predatory prowess of apex predators to the symbiotic relationships between plants and aquatic organisms, every aspect of the riverine food web is meticulously discussed. However, "Flowing Harmony: Navigating The Riverine Ecosystem" does not shy away from addressing the myriad challenges threatening the health and resilience of these vital ecosystems. Pollution, habitat degradation, overexploitation of resources, and the looming spectre of climate change cast a shadow over the pristine beauty of rivers worldwide. The book underscores the urgent need for concerted conservation efforts and sustainable management practices to safeguard these invaluable natural treasures for future generations. Furthermore, the text serves as a call to action, urging policymakers, conservationists, and the general public to recognize the intrinsic value of rivers beyond their utilitarian functions. It advocates for holistic approaches to river management that prioritize ecosystem health and resilience, emphasizing the interconnectedness of human well-being with the vitality of river ecosystems. "Flowing Harmony: Navigating The Riverine Ecosystem" transcends disciplinary boundaries, appealing to ecologists, biologists, environmentalists, policymakers, and anyone with a vested interest in understanding and preserving the intricate tapestry of life woven within river corridors. With its blend of scientific rigor, ecological insights, and impassioned advocacy, this book stands as a testament to the enduring beauty and importance of rivers in shaping the fabric of our planet.