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A novel MIL-101(Fe)/ZnCrZr-LBMO heterojunction was successfully constructed and used for the removal of ciprofloxacin (CIP) in this work. The MIL-101(Fe)/ZnCrZr-LBMO composite exhibited significantly enhanced photocatalytic degradation activity, with reaction rates approximately 3.4 and 3.1 times faster than those observed with pristine MIL-101(Fe) and ZnCrZr-LBMO, respectively. The effect of different amounts of ZnCrZr-LBMO, sample pH, CIP concentration, inorganic cations, and anions on CIP removal was investigated, and the possible intermediates and degradation pathways of CIP were speculated. The·O2− radicals dominated CIP degradation, with minor contributions from 1O2, h+, and ·OH radicals. The composite exhibited high removal rates for CIP (94.7%), ofloxacin (86.8%), and tetracycline (96.3%), respectively, within 60 min of light irradiation, and excellent reusability, retaining over 85.1% CIP degradation rate after five cycles. Our work provides a new reference to construct highly efficient and easily recyclable MIL-101(Fe)/ZnCrZr-LBMO photocatalysts for the removal of antibiotic pollutants, promising advancements in real water treatment applications. [ABSTRACT FROM AUTHOR]

Objective To analyze the cancer mortality and epidemiological characteristics of digestive system cancer in Xianyou County, Fujian Province, and to provide a scientific evidence for formulating preventive measures for digestive system cancer. Methods Excel and SPSS software were used to collect the monitoring data of digestive system cancer death in Xianyou County from 2014 to 2018, and then analyzed the mortality, the standardized rate (according to the Chinese 2000 population census) and the cause of death. Results From 2014 to 2018, the deaths of malignant tumors in Xianyou County accounted for 35.00% of all deaths. Among them, the four common digestive system malignant tumors (gastric cancer, esophageal cancer, liver cancer and colorectal cancer) accounted for 62.44% of malignant tumors. Gastric cancer ranked first and accounted for 27.36%. Average annual rate of crude mortality and standardized mortality of malignant tumor in the digestive system were 108.93/105 and 89.34/105, respectively, and the ratio of male to female was 2.27 to 1. Significant differences were found between town and village, as the terrain gets lower, the death rate goes down gradually. Compared with the data of 2011-2012, the standardized death rate of gastric cancer, esophageal cancer and liver cancer were reduced by 29.71%, 23.92% and 12.06%, respectively, while the rate of colorectal cancer was increased by 28.80% and the average annual growth rate was 7.83%. Conclusion Although the death rates of gastric cancer, esophageal cancer and liver cancer have decreased significantly, the malignant tumor of the digestive system is still the main disease that causes the death of residents in Xianyou County, Putian City. Therefore, it is necessary to strengthen the education of health in order to achieve the early discovery, diagnosis and treatment.

Germination of aged seeds may be associated with specific metabolic changes. The objective of this study was to examine physiological and metabolic alterations before and after germination of control and aged oat (Avena sativa) seeds. The activity of antioxidant enzymes and the level of storage compounds were measured in the embryo and endosperm at 0, 4, 16, and 32 h of imbibition for control seeds and 0, 4, 16, 32, and 60 h of imbibition for medium vigor seeds after artificially accelerated aging; metabolomic changes were determined in embryos at 16 and 32 h of seed imbibition. In aged oat seeds, superoxide dismutase activity and catalase activity increased in the late imbibition stage. The content of soluble sugars decreased significantly in the later stages of imbibition, while the content of proteins increased in 32 h of seed imbibition eventually producing mannitol and proline. The mobilization of fat in deteriorated seeds was mainly through the sphingolipid metabolic pathway generated by cell growth‐promoting dihydrosphingosine‐1‐phosphate. Ascorbic acid, avenanthramide and proline levels increased significantly at 60 h of imbibition, playing an important role in the germination of aged oat seeds. [ABSTRACT FROM AUTHOR]

Drought stress affects plant photosynthesis, leading to a reduction in the quality and yield of crop production. Non-foliar organs play a complementary role in photosynthesis during plant growth and development and are important sources of energy. However, there are limited studies on the performance of non-foliar organs under drought stress. The photosynthetic-responsive differences of oat spikelet organs (glumes, lemmas and paleas) and flag leaves to drought stress during the grain-filling stage were examined. Under drought stress, photosynthetic performance of glume is more stable. Intercellular CO 2 concentration (Ci), chlorophyll b, maximum photochemical efficiency of photosystem II. (Fv/Fm), and electron transport rate (ETR) were significantly higher in the glume compared to the flag leaf. The transcriptome data revealed that stable expression of the RCCR gene under drought stress was the main reason for maintaining higher chlorophyll content in the glume. Additionally, no differential expression genes (DEGs) related to Photosystem Ⅰ (PSI) reaction centers were found, and drought stress primarily affects the Photosystem II (PSII) reaction center. In spikelets, the CP43 and CP47 subunits of PSII and the AtpB subunit of ATP synthase were increased on the thylakoid membrane, contributing to photosynthetic stabilisation of spikelets as a means of supplementing the limited photosynthesis of the leaves under drought stress. The results enhanced understanding of the photosynthetic performance of oat spikelet during the grain-filling stage, and also provided an important basis on improving the photosynthetic capacity of non-foliar organs for the selection and breeding new oat varieties with high yield and better drought resistance., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Masson SAS. All rights reserved.)