المؤلفون: Weiwei Li, Sajjad Ahmad, Dun Liu, Shen Gao, Yuhui Wang, Weike Tao, Lin Chen, Zhenghui Liu, Yu Jiang, Ganghua Li, Yanfeng Ding

المصدر: Crop Journal, Vol 11, Iss 3, Pp 914-921 (2023)

مصطلحات موضوعية: Controlled-release fertilizer, N subsurface placement, CH4, N2O, Yield, Agriculture, Agriculture (General), S1-972

الوصف: Controlled-release urea (CRU) is widely reported to supply crop nitrogen (N) demand with one basal application, thus effectively replacing split applications of urea without diminishing grain yield and N use efficiency (NUE). However, its use for replacement for high-yield split applications of urea (CK) for rice is untested. In addition, the degree to which greenhouse gas (GHG) emissions in rice systems are affected when CRU is substituted for CK remains unclear. During 2017 and 2018, we sampled plant growth and gas emissions in a rice paddy field treated with three CRU types (sulfur-coated urea [SCU], polymer-coated urea [PCU], and bulk blended CRU [BBU]) applied via two methods (surface broadcasting on the soil and subsurface banding at 5 cm depth), with CK as a control. The three CRUs led to different soil NH4+-N dynamics, and the N supply pattern under BBU was more beneficial for rice seedling establishment than under SCU and PCU, resulting in grain yield and NUE comparable to those under CK. CRU type showed no significant effect on either CH4 emissions or N2O emissions, and broadcast CRUs exhibited significantly higher total GHG emissions than CK. However, banded CRUs significantly reduced the total GHG emissions in comparison with broadcast CRUs, by 9.2% averaged across the two years. Reduced CH4 emissions, particularly during the period prior to the middle drainage, contributed largely to the GHG difference. With comparably high grain yield and low total GHG emissions, banded BBU showed a low yield-scaled GHG (GHG emissions divided by grain yield) comparable to that under CK in both years. Overall, our study suggested that N management synchronized with rice demand and contributing to a high NUE tended to minimize yield-scaled GHG. Broadcast CRU can hardly substitute for CK in terms of either grain yield or GHG emissions, but banded BBU is a promising N management strategy for sustaining rice production while minimizing environmental impacts.

وصف الملف: electronic resource

العلاقة: http://www.sciencedirect.com/science/article/pii/S2214514122002355Test; https://doaj.org/toc/2214-5141Test

الوصول الحر: https://doaj.org/article/e334dd49ba16422986ce618fb374f25dTest

المؤلفون: Xing Zhang, Yonghui Ma, Li Kong, Yusen Li, Juan Wang, Ning Li, Yujie Xia, Peng Wang, Min Zhang, Lili Liu, Dingding Zhang, Luhan Wen, Shuangshuang Wang, Zhenghui Liu, Xia Yue, Jixia Wang, Tong Zhang, Xiujuan Meng

المصدر: Frontiers in Medicine, Vol 10 (2023)

مصطلحات موضوعية: healthcare workers, hand hygiene performance, COVID-19, prevention and control strategies, hand hygiene, coronavirus disease 2019, Medicine (General), R5-920

الوصف: IntroductionHand hygiene is a cost-effective measure to reduce healthcare-associated infections (HAIs) in healthcare facilities. The impact of the coronavirus disease 2019 (COVID-19) pandemic on hand hygiene performance (HHP) provided evidence for targeted hand hygiene intervention measures.MethodsThis study evaluated the HHP rate in a tertiary hospital before and after the COVID-19 outbreak. HHP was checked by infection control doctors or nurses every day, and they inputted the HHP rate to the full-time infection control staff every week. A random examination of HHP was conducted by a confidential worker every month. The HHP of healthcare workers (HCWs) was monitored in the outpatient department, inpatient ward, and operating room from January 2017 to October 2022. The influence of COVID-19 prevention and control strategies on HHP was elucidated by analyzing the results of HHP during the study period.ResultsThe average HHP rate of HCWs was 86.11% from January 2017 to October 2022. The HHP rate of HCWs after the COVID-19 pandemic was statistically significantly higher than that before the pandemic (P < 0.001). The HHP rate was the highest (93.01%) in September 2022 when the local epidemic occurred. Among the different occupation categories, medical technicians showed the highest HHP rate (89.10%). The HHP rate was the highest after contact with body fluids or blood of patients (94.47%).ConclusionThe HHP rate of HCWs in our hospital showed an increasing trend in the recent 6 years, especially during the COVID-19 pandemic, and the increase was most obvious during the local epidemic.

وصف الملف: electronic resource

العلاقة: https://www.frontiersin.org/articles/10.3389/fmed.2023.1160828/fullTest; https://doaj.org/toc/2296-858XTest

الوصول الحر: https://doaj.org/article/b5951700efae48388415a0c9b6f326c0Test

المؤلفون: Yan Zhou, Lei Xu, Jianwei Zhang, Weiwei Li, Yu Jiang, Songhan Wang, Yanfeng Ding, Zhenghui Liu, Ganghua Li

المصدر: Crop Journal, Vol 10, Iss 4, Pp 1178-1186 (2022)

مصطلحات موضوعية: Fertilizer postponing, N apparent surplus, Rice yield, Spikelets per panicle, Rice–wheat cropping systems, Agriculture, Agriculture (General), S1-972

الوصف: Nitrogen (N) fertilization increases rice yield, but inappropriate N fertilizer application increases N loss and the risk of environmental pollution. Short-term fertilizer postponing (FP) generally reduces N apparent surplus and increases rice yields, but the effects of long-term FP on N surplus and rice yields remain unknown. Our study was the first to investigate the impacts of long-term FP (11 years) on N apparent surplus and rice yields. FP effects in the short term (≤6 years) did not affect rice yields, whereas FP effects in the long term (>6 years) increased rice yields by 13.9% compared with conventional fertilization (CF). FP did not affect panicles per unit area, 1000-kernel weight, and filled-kernel rate, but spikelets per panicle increased over time due to spikelet formation stimulation. FP also reduced the N apparent surplus over time more strongly than CF owing to higher N accumulation and N utilization efficiency. FP effects in the long term also significantly increased soil organic matter, total N, and NH4+-N content. Our results were supported by a pot experiment, showing that rice yields in soils with a history of FP were significantly higher than those for soils without a history of FP, indicating that FP increased rice yields more strongly in later years mainly because of soil quality improvement. Our findings suggest that long-term FP can reduce N loss while increasing rice yields by improving soil quality.

وصف الملف: electronic resource

العلاقة: http://www.sciencedirect.com/science/article/pii/S2214514122000307Test; https://doaj.org/toc/2214-5141Test

الوصول الحر: https://doaj.org/article/87448580b4304e79b0ec1f2015047a31Test

المؤلفون: Xiangcheng Zhu, Jin Chen, Shan Huang, Weiwei Li, Josep Penuelas, Ji Chen, Feng Zhou, Weijian Zhang, Ganghua Li, Zhenghui Liu, Yanfeng Ding, Songhan Wang, Kees Jan van Groenigen, Yu Jiang

المصدر: Communications Earth & Environment, Vol 3, Iss 1, Pp 1-9 (2022)

مصطلحات موضوعية: Geology, QE1-996.5, Environmental sciences, GE1-350

الوصف: Heat resilience and tolerance of rice crops is enhanced by manure amendment and could improve yield stability under projected climate change, suggest a meta-analysis and long term manure amendment experiments.

وصف الملف: electronic resource

العلاقة: https://doaj.org/toc/2662-4435Test

الوصول الحر: https://doaj.org/article/9d40a7daa5c4486ca38efff236614fdaTest

المؤلفون: Yang Tao, Lu An, Feng Xiao, Ganghua Li, Yanfeng Ding, Matthew J. Paul, Zhenghui Liu

المصدر: Crop Journal, Vol 10, Iss 3, Pp 729-742 (2022)

مصطلحات موضوعية: Seed development, Embryo–endosperm interaction, Developmental transition, Transcriptome, Sugar signaling, Rice physiology, Agriculture, Agriculture (General), S1-972

الوصف: Interaction between the embryo and endosperm affects seed development, an essential process in yield formation in crops such as rice. Signals that mediate communication between embryo and endosperm are largely unknown. We used the notched-belly (NB) mutant with impaired communication between embryo and endosperm to investigate the effect of the embryo on developmental staging of the endosperm and signaling pathways in the embryo that regulate endosperm development. Hierachical clustering of mRNA datasets from embryo and endosperm samples collected during development in NB and a wild type showed a delaying effect of the embryo on the developmental transition of the endosperm by extension of the middle stage. K-means clustering further identified coexpression modules of gene sets specific to embryo and endosperm development. Combined gene expression and biochemical analysis showed that T6P–SnRK1, gibberellin and auxin signaling by the embryo regulate endosperm developmental transition. We propose a new seed developmental staging system for rice and identify the most detailed signature of rice grain formation to date. These will direct genetic strategies for rice yield improvement.

وصف الملف: electronic resource

العلاقة: http://www.sciencedirect.com/science/article/pii/S2214514121002154Test; https://doaj.org/toc/2214-5141Test

الوصول الحر: https://doaj.org/article/be3e8e577f3745558ec34271ed41956bTest

المؤلفون: Ruowen Liu, Pengyan Li, Zejun Li, Zhenghui Liu, Yanfeng Ding, Wenjuan Li, Shouyang Liu

المصدر: Plant Phenomics, Vol 5 (2023)

مصطلحات موضوعية: Plant culture, SB1-1110, Genetics, QH426-470, Botany, QK1-989

الوصف: Accurate assessment of crop biochemical profiles plays a crucial role in diagnosing their physiological status. The conventional destructive methods, although reliable, demand extensive laboratory work for measuring various traits. On the other hand, nondestructive techniques, while efficient and adaptable, often suffer from reduced precision due to the intricate interplay of the field environment and canopy structure. Striking a delicate balance between efficiency and accuracy, we have developed the Bio-Master phenotyping system. This system is capable of simultaneously measuring four vital biochemical components of the canopy profile: dry matter, water, chlorophyll, and nitrogen content. Bio-Master initiates the process by addressing structural influences, through segmenting the fresh plant and then further chopping the segment into uniform small pieces. Subsequently, the system quantifies hyperspectral reflectance and fresh weight over the sample within a controlled dark chamber, utilizing an independent light source. The final step involves employing an embedded estimation model to provide synchronous estimates for the four biochemical components of the measured sample. In this study, we established a comprehensive training dataset encompassing a wide range of rice varieties, nitrogen levels, and growth stages. Gaussian process regression model was used to estimate biochemical contents utilizing reflectance data obtained by Bio-Master. Leave-one-out validation revealed the model’s capacity to accurately estimate these contents at both leaf and plant scales. With Bio-Master, measuring a single rice plant takes approximately only 5 min, yielding around 10 values for each of the four biochemical components across the vertical profile. Furthermore, the Bio-Master system allows for immediate measurements near the field, mitigating potential alterations in plant status during transportation and processing. As a result, our measurements are more likely to faithfully represent in situ values. To summarize, the Bio-Master phenotyping system offers an efficient tool for comprehensive crop biochemical profiling. It harnesses the benefits of remote sensing techniques, providing significantly greater efficiency than conventional destructive methods while maintaining superior accuracy when compared to nondestructive approaches.

وصف الملف: electronic resource

العلاقة: https://doaj.org/toc/2643-6515Test

الوصول الحر: https://doaj.org/article/06a04641c58f4e78a0e4ace2f2afe923Test

المؤلفون: Yiyang Tang, Xiaofang Zeng, Yilu Feng, Qin Chen, Zhenghui Liu, Hui Luo, Lihuang Zha, Zaixin Yu

المصدر: Frontiers in Cardiovascular Medicine, Vol 9 (2022)

مصطلحات موضوعية: congestive heart failure, systemic immune-inflammation index, mortality, biomarker, MIMIC-III database, Diseases of the circulatory (Cardiovascular) system, RC666-701

وصف الملف: electronic resource

العلاقة: https://www.frontiersin.org/articles/10.3389/fcvm.2022.1116547/fullTest; https://doaj.org/toc/2297-055XTest

الوصول الحر: https://doaj.org/article/2e3003f2ffd2449cbfa0d6804bf3520eTest

المؤلفون: Yiyang Tang, Qin Chen, Benhui Liang, Baohua Peng, Meijuan Wang, Jing Sun, Zhenghui Liu, Lihuang Zha, Zaixin Yu

المصدر: Frontiers in Cardiovascular Medicine, Vol 9 (2022)

مصطلحات موضوعية: heart failure, coagulation disorder, mortality, biomarker, MIMIC-III, Diseases of the circulatory (Cardiovascular) system, RC666-701

وصف الملف: electronic resource

العلاقة: https://www.frontiersin.org/articles/10.3389/fcvm.2022.1116632/fullTest; https://doaj.org/toc/2297-055XTest

الوصول الحر: https://doaj.org/article/b0cc1661140f4c14a2a1ea46fe13eef0Test

المؤلفون: Yiyang Tang, Qin Chen, Benhui Liang, Baohua Peng, Meijuan Wang, Jing Sun, Zhenghui Liu, Lihuang Zha, Zaixin Yu

المصدر: Frontiers in Cardiovascular Medicine, Vol 9 (2022)

مصطلحات موضوعية: heart failure, coagulation disorder, mortality, biomarker, MIMIC-III, Diseases of the circulatory (Cardiovascular) system, RC666-701

الوصف: PurposeCoagulation disorder in congestive heart failure (CHF) has been well-documented. The prognostic value of a composite coagulation disorder score, which combines the absolute platelet count, international normalized ratio (INR), and activated partial thromboplastin time (APTT), has not been assessed in CHF. The present study endeavored to explore the association between the coagulation disorder score and adverse outcomes of critically ill patients with CHF.MethodsPatients diagnosed with CHF in the Medical Information Mart for Intensive Care III (MIMIC-III) database were included in the present retrospective cohort study. The coagulation disorder score was calculated according to the abnormalities of the absolute platelet count, INR, and APTT within 24 h after intensive care unit admission. The primary outcomes were the short-term all-cause mortality, including 30-, 90-day and in-hospital mortalities. The Kaplan–Meier (K-M) survival curve and the Cox proportional hazard model were performed to assess the correlation between coagulation disorder score and outcome events.ResultsA total of 6,895 patients were enrolled in this study and divided into four groups according to the coagulation disorder score. K-M survival curve preliminarily indicated that subjects with higher coagulation disorder score presented lower survival rate and shorter survival time. After adjustment for potential confounders, the multivariate Cox analysis further illustrated that elevated coagulation disorder score as a quartile variable was significantly associated with increased all-cause mortality (quartile 4 vs. quartile 1, 30-day: HR [95% CI], 1.98 [1.50, 2.62], 90-day: HR [95% CI], 1.88 [1.49, 2.37], in-hospital: HR [95%CI], 1.93 [1.42, 2.61]).ConclusionIn critically ill patients with CHF, ones with high coagulation disorder score tend to be worse clinical prognosis, which would be a promising biomarker and helpful for the management of CHF patients.

وصف الملف: electronic resource

العلاقة: https://www.frontiersin.org/articles/10.3389/fcvm.2022.999391/fullTest; https://doaj.org/toc/2297-055XTest

الوصول الحر: https://doaj.org/article/55707c78e26b454ebf691db3d2d2724bTest

المؤلفون: Zhenghui Liu, Yunlong Cong, Frederick Leo Sossah, Yongzhong Lu, Jichuan Kang, Yu Li

المصدر: Journal of Fungi, Vol 9, Iss 4, p 411 (2023)

مصطلحات موضوعية: Morchella sextelata, cobweb disease, identification, Cladobotryum mycophilum, whole genome sequencing, Biology (General), QH301-705.5

الوصف: Cobweb disease is a fungal disease that can cause serious damage to edible mushrooms worldwide. To investigate cobweb disease in Morchella sextelata in Guizhou Province, China, we isolated and purified the pathogen responsible for the disease. Through morphological and molecular identification and pathogenicity testing on infected M. sextelata, we identified Cladobotryum mycophilum as the cause of cobweb disease in this region. This is the first known occurrence of this pathogen causing cobweb disease in M. sextelata anywhere in the world. We then obtained the genome of C. mycophilum BJWN07 using the HiFi sequencing platform, resulting in a high-quality genome assembly with a size of 38.56 Mb, 10 contigs, and a GC content of 47.84%. We annotated 8428 protein-coding genes in the genome, including many secreted proteins, host interaction-related genes, and carbohydrate-active enzymes (CAZymes) related to the pathogenesis of the disease. Our findings shed new light on the pathogenesis of C. mycophilum and provide a theoretical basis for developing potential prevention and control strategies for cobweb disease.

وصف الملف: electronic resource

العلاقة: https://www.mdpi.com/2309-608X/9/4/411Test; https://doaj.org/toc/2309-608XTest

الوصول الحر: https://doaj.org/article/35ca60b17de541e69a6730a2262d9100Test