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Background: To provide the anatomic basis for the clinical application of the transpedicular screw fixation. Materials and methods: Thirty spine (C₂ –L₅) specimens were used. The width of the pedicle cortex and width of the pedicle medullary cavity (WPC and WPMC), and the height of the pedicle cortex and height of the pedicle medullary cavity (HPC and HPMC) were measured at the isthmus of the pedicle...
Controlled irrigation and drainage (CID) has received considerable attention as a reliable management practice for improving water quality and water productivity in rice production. This study aimed to evaluate the effects of CID on water productivity, nitrogen, and phosphorus losses in paddy fields. Treatments include alternate wetting and drying (AWD; lower limit of irrigation to -200 mm and upper...
Alternate drought and flooding stress has become more prevalent during paddy growth stages as a result of climate change, especially in southern China. This study aims to assess the effect of alternate drought and flooding stress on water use, and nitrogen (N) and phosphorus (P) losses in paddy fields. Two controlled irrigation and drainage (CID) managements (namely drought at the beginning of growth...
In this study, five mixed substrates – SSFGF, FSSGF, FSSFF, FSSFG, and FSFGF – consisting of fly ash, sludge, soil, fine cinder, gravels, and fine sand, were made in order to test the removal effect of lead. Multiple comparisons and analysis of variance were used to analyze physicochemical properties and the removal efficiency of lead. The test results showed that for five substrates, the effluent...
We used Populus cathayana, a native species with an extensive distribution in northern, central, and southwestern China, as a model species to detect the sex-specific differences in photosynthetic capacity, ultrastructure, nitrogen (N) metabolism, and nickel (Ni) accumulation and distribution in response to Ni stress. Exposure to 100 μM Ni²⁺ in a hydroponic system for 1 month significantly decreased...
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