QCD and strongly coupled gauge theories : challenges and perspectives

We highlight the progress, current status, and open challenges of QCD-driven physics, in theory and in experiment. We discuss how the strong interaction is intimately connected to a broad sweep of physical problems, in settings ranging from astrophysics and cosmology to strongly coupled, complex systems in particle and condensed-matter physics, as well as to searches for physics beyond the Standard Model. We also discuss how success in describing the strong interaction impacts other fields, and, in turn, how such subjects can impact studies of the strong interaction. In the course of the work we offer a perspective on the many research streams which flow into and out of QCD, as well as a vision for future developments.Peer reviewe

ICAR: endoscopic skull‐base surgery

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International Consensus Statement on Rhinology and Allergy: Rhinosinusitis

Background: The 5 years since the publication of the first International Consensus Statement on Allergy and Rhinology: Rhinosinusitis (ICAR‐RS) has witnessed foundational progress in our understanding and treatment of rhinologic disease. These advances are reflected within the more than 40 new topics covered within the ICAR‐RS‐2021 as well as updates to the original 140 topics. This executive summary consolidates the evidence‐based findings of the document. Methods: ICAR‐RS presents over 180 topics in the forms of evidence‐based reviews with recommendations (EBRRs), evidence‐based reviews, and literature reviews. The highest grade structured recommendations of the EBRR sections are summarized in this executive summary. Results: ICAR‐RS‐2021 covers 22 topics regarding the medical management of RS, which are grade A/B and are presented in the executive summary. Additionally, 4 topics regarding the surgical management of RS are grade A/B and are presented in the executive summary. Finally, a comprehensive evidence‐based management algorithm is provided. Conclusion: This ICAR‐RS‐2021 executive summary provides a compilation of the evidence‐based recommendations for medical and surgical treatment of the most common forms of RS

Natural Sources and Applications of Demineralized Bone Matrix in the Field of Bone and Cartilage Tissue Engineering

none8siDemineralized bone matrix (DBM) is one of the most widely used materials for bone repair. Recently, different strategies in tissue engineering have been used to improve preparation of biomaterials from natural sources suitable for the use in bone regeneration. However, the application of DBM in tissue engineering is still a challenge, because the mechanical properties which are essential to bear tensile and load and the risk of transmission of disease by donor are still a matter of homework. A solution to this problem is to blend natural and synthetic polymers to complement defects and make them ideal biomaterials. An ideal biomaterial improves survival, adhesion, proliferation, induction, and differentiation of cells in the biomaterial after in vivo transplantation. In this review, we will look at the study of DBM made of natural and synthetic materials giving a direction for future research.noneCho, Hunhwi; Bucciarelli, Alessio; Kim, Wonkyung; Jeong, Yongwoon; Kim, Namyeong; Jung, Junjae; Yoon, Sunjung; Khang, GilsonCho, Hunhwi; Bucciarelli, Alessio; Kim, Wonkyung; Jeong, Yongwoon; Kim, Namyeong; Jung, Junjae; Yoon, Sunjung; Khang, Gilso