Abstract. Concrete pavements are widely used to carry heavy load and provide long-lasting solutions in highways, airports, and bridge decks. This chapter reviews the current state-of-practice in lifecycle cost analysis (LCCA) and lifecycle assessment (LCA) of concrete pavement repairs. Most studies focused on pavement rehabilitation
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A solar term is any of twenty-four periods in traditional Chinese lunisolar calendars that matches a particular astronomical event or signifies some natural phenomenon. The points are spaced 15° apart along the ecliptic  and are used by lunisolar calendars to stay synchronized with the seasons, which is crucial for agrarian societies.
Cancer stem cells (CSCs), which have the capacity to self-renew and differentiate into various types of cells, are notorious for their roles in tumor initiation, metastasis, and therapy resistance. Thus, underlying mechanisms for their survival provide key insights into developing effective therapeutic strategies. A more recent focus has been on exosomes that play a role in transmitting
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27/2/2021 · 1. Mesenchymal Stem Cells Mesenchymal stem cells (MSCs) were observed for the first time in bone marrow by Cohnheim in 1867, who discovered that these cells could be the source of fibroblasts involved in wound repair .Later, MSCs were first isolated and
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14/1/2021 · Linksys Velop Wi-Fi 6E router. Photograph: Belkin. Last year was all about Wi-Fi 6, but in 2021, Wi-Fi 6E is all the rage. It’s a huge update that adds the 6-gigahertz spectrum on top of the
12/2/2021 · This boom in stem cell clinics with 351 companies putting stem cells for sale in 570 clinics in 2016 indicated the mal-practice of the MSC therapies . Considering the fact that many of the applied exogenous stem cell therapies lack confirmation on safety and effectiveness from large-scale clinical trials and are even illegal, these medical mal-practices do threaten the development of MSC
Scientific Reports is an online multidisciplinary, open access journal from the publishers of Nature. Our Collection brings together articles on COVID-19 from across the scope of Scientific ...