PURPOSE To evaluate the tibial articular cartilage and histology of the posterior cruciate ligament (PCL) in osteoarthritic knees so as to determine predictors of PCL degeneration. METHODS 23 advanced osteoarthritic knees (mean patient age, 61 years) treated with total knee arthroplasty (TKA) were prospectively studied. The Knee Society Score was assessed. Osteoarthritic changes on radiograph...

Lateral slope deposits along a channel represent an important source of material for initiation and development debris flows/floods that are typically observed in many headwater tributaries. This study found the failure process such deposit reflects combined interaction between external hydrodynamic factors (inflow discharge slope) internal (compactness fine particle content). The erosion compr...

Ti-doped ZnO nanorod arrays were grown onto Si substrate using chemical bath deposition (CBD) method at 93 °C. To investigate the effect of time deposition on the morphological, and structural properties, four Ti-doped ZnO samples were prepared at various deposition periods of time (2, 3.5, 5, and 6.5 h). FESEM images displayed high-quality and uniform nanorods with a mean length strongly depen...

Is erosion important to the structural and petrological evolution of mountain belts? The nature of active metamorphic massifs colocated with deep gorges in the syntaxes at each end of the Himalayan range, together with the magnitude of erosional fluxes that occur in these regions, leads us to concur with suggestions that erosion plays an integral role in collisional dynamics. At multiple scales...

CORRECTION article Front. Earth Sci., 19 July 2021Sec. Geohazards and Georisks https://doi.org/10.3389/feart.2021.730653