Inversion of heavy metal copper content in soil-wheat systems using hyperspectral techniques and enrichment characteristics.

The growing problem of heavy metal contamination in soil will seriously threaten the China's grain safety. The development of hyperspectral remote sensing technology provides the possibility to achieve rapid and non-destructive monitoring of soil heavy metal content. In this study, we used hyperspectral techniques and enrichment characteristics to explore the potential of wheat leaf spectral inversion for heavy metal copper (Cu) content in the soil-wheat system.

Evaluation of Cartilaginous Endplate Degeneration Based on Magnetic Resonance Imaging.

In order to carry out the evaluation of cartilaginous endplate degeneration based on magnetic resonance imaging (MRI), this paper retrospectively analyzed the MRI data from 120 cases of patients who were diagnosed as lumbar intervertebral disc degeneration and underwent MRI examinations in the designated hospital of this study from June 2018 to June 2020. All cases underwent conventional sagittal and transverse T1WI and T2WI scans, and some cases were added with sagittal fat-suppression T2WI scans; then, the number of degenerative cartilaginous endplates and its ratio to degenerative lumbar intervertebral discs were counted and calculated, and the T1WI and T2WI signal characteristics of each degenerative cartilage endplate and its correlation with cartilaginous endplate degeneration were summarized, compared, and analyzed to evaluate the cartilaginous endplate degeneration by those magnetic resonance information. The study results show that there were 33 cases of cartilaginous endplate degeneration, accounting for 27.

Is Unilateral Percutaneous Kyphoplasty Superior to Bilateral Percutaneous Kyphoplasty for Osteoporotic Vertebral Compression Fractures? Evidence from a Systematic Review of Discordant Meta-Analyses.

Background: Several meta-analyses have been performed to compare unilateral percutaneous kyphoplasty (PKP) and bilateral PKP in the treatment of osteoporotic vertebral compression fractures (OVCFs), but inconsistencies in the results have led to questions as to which technique is preferable.

Objective: This study was designed to clarify the benefits and disadvantages of unilateral PKP versus bilateral PKP as found in numerous discordant meta-analyses and thereby present surgical treatment recommendations for OVCFs considering the current best evidence.

Study Design: Systematic review/Meta-analysis.