Accurate estimation of photosynthesis is crucial for ecosystem carbon cycle modelling. Previous studies have established an empirical relationship between photosynthetic capacity (maximum carboxylation rate, V; maximum electron transport rate, J) and leaf chlorophyll (Chl) content to infer global photosynthetic capacity. However, the basis for the Chl-V relationship remains unclear, which is further evidenced by the temporal variations in the Chl-V relationship.
View Article and Find Full Text PDFBackground: Semantic segmentation is crucial in medical image diagnosis. Traditional deep convolutional neural networks excel in image classification and object detection but fall short in segmentation tasks. Enhancing the accuracy and efficiency of detecting high-level cervical lesions and invasive cancer poses a primary challenge in segmentation model development.
View Article and Find Full Text PDFLeaves acclimate to day-to-day fluctuating levels of photosynthetic photon flux density (PPFD) by adjusting their morphological and physiological parameters. Accurate estimation of these parameters under day-to-day fluctuating PPFD conditions benefits crop growth modeling and light environment management in greenhouses, although it remains challenging. We quantified the relationships between day-to-day PPFD changes over 6 days and light acclimation parameters for cucumber seedling leaves, including leaf mass per area (LMA), chlorophyll (Chl) / ratio, maximum net photosynthetic rate ( ), maximum rate of ribulose-1,5-bisphosphate (RuBP) carboxylase/oxygenase ( ), and maximum rate of electron transport ( ).
View Article and Find Full Text PDFBackground: Human papillomavirus (HPV) infection is associated with multiple types of cancer, but the evidence has not yet been fully elucidated in bladder cancer.
Methods: Frozen tissue samples collected from 146 patients aged 32 to 89 years with bladder cancer pathological diagnosis between 2015 and 2019 were analyzed. HPV genotyping and integration status determination were performed by capture-based next generation sequencing.
Effect of laparoscopic myomectomy on the serum levels of interleukin-6 (IL-6) and total antioxidant capacity (TAC), and the ovarian function of patients with uterine fibroids was studied. Ninety patients with uterine fibroids admitted to The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, from March 2013 to July 2014, were randomly divided into the experimental group (n=45) and the control group (n=45). The experimental group was treated with laparoscopic myomectomy, and the control group was treated with abdominal myomectomy.
View Article and Find Full Text PDFFront Plant Sci
October 2018
Phosphorus (P) is a limiting plant soil nutrient. Long-term low inorganic phosphate (Pi) irreversibly damages plant cells and hinders plant growth. Plants have evolved several adaptive biochemical, physiological, and developmental responses to low-Pi stress.
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