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Wheat stripe rust, caused by Puccinia striiformis, is one of the most serious diseases on wheat yield. It is of great significance to timely and accurately detect the disease, in order to monitor and prevent the wheat stripe rust. The stripe rust can infect the internal physical and chemical characteristics and external morphological structure of wheat. Solar-induced chlorophyll fluorescence (SIF) can be expected for the remote sensing detection of crop stress. The red-band sunlight-induced chlorophyll fluorescence (RSIF) has more information about photosystem II (PSII), thus sensitively representing the photosynthetic physiological state of plants. The SIF escape rate is closely related to the canopy geometry, leaf optical properties, and light energy utilization efficiency of vegetation. In this study, field-measured data was used to invert and calculate the SIF and its escape rate (εCP) at different scales (canopy scale SIFCanopy and photosystem scale SIFPS) in the red and far-red band. The contents of four wheat pigments were obtained to combine the leaf area index (LAI) closely related to vegetation growth. The physiological basis of RSIF escape rate (RεCP) was determined to monitor the wheat stripe rust. Subsequently, the response characteristics of RεCP under stripe rust stress were explored to compare with the SIF and its derived parameters (fluorescence yield ФF, apparent SIF yield SIFy) in the red and far-red light bands, the normalized difference vegetation index (NDVI), the MERIS terrestrial chlorophyll index (MTCI) and the simple ratio vegetation index (SR). In addition, a systematic analysis was performed on the response characteristics to SL under different disease severity (SL) and different chlorophyll contents (Chl). The results indicate that the correlations between nitrogen balance index (NBI), Chl, flavonoids (Flav), anthocyanins (Anth), and LAI and SL all reached the P<0.01 level, among which the correlation between Chl and SL was the highest. The correlations of RεCP with NBI, Chl, Flav, and Anth increased by 29.06% and 31.52% on average, respectively, compared with photosystem-scale RSIF and photosystem-scale far-red band SIF (far-red solarinduced chlorophyll fluorescence, FRSIF). The correlation with LAI increased by 15.63%, compared with the canopy-scale FRSIF. RεCP better reflected the variation in the crop physiology and canopy structure caused by disease stress. RεCP shared the highest correlation with SL, which was 60.87%, 42.31%, 17.46%, 39.62%, 34.55%, 5.71%, 13.85%, and 21.31% higher than those of canopy-scale FRSIF (FRSIFCanopy), photosystem-scale FRSIF (FRSIFPS), photosystem-scale RSIF (RSIFPS), apparent SIF yield in the red light band (RSIFy), fluorescence yield in the red light band (RФF), NDVI, MTCI and SR, respectively. In the mild to moderate (0%45%) disease conditions, the correlation between RεCP and SL increased by an average of 56.34% and 53.97%, respectively, compared with SIF and their derived parameters and vegetation index at the P<0.01 level. RεCP was sensitively responded to the variation in SL, which was better than the rest parameters. RεCP was most sensitive to the wheat stripe rust stress under the low (Chl≤30) and medium to high chlorophyll content (Chl>30). The correlation with SL increased by an average of 42.77% and 43.25%, respectively, compared with SIF and their derived parameters and vegetation index at the P<0.01 level. RεCP can serve as a suitable factor for remote sensing monitoring of wheat stripe rust. RεCP can greatly contribute to disease prevention for better yields. The finding can also provide a strong reference and powerful tool for remote sensing monitoring of crops in agricultural production. RSIF and escape rate can be incorporated into the remote sensing monitoring, in order to greatly improve the detection and monitoring of plant health status. [ABSTRACT FROM AUTHOR]

Copyright of Bulletin of the Chinese Ceramic Society is the property of Bulletin of the Chinese Ceramic Society Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to investigate the characteristics of surface water consumption and groundwater dynamics under the influence of the change of cultivated land area and water-saving irrigation in the middle reaches of the Heihe River, based on the monthly data of the measured runoff from the hydrographic stations of Yingluoxia and Zhengyixia of the Heihe River and the monthly data of the depth of 49 groundwater observation wells in the middle reaches of the Heihe River from 1985 to 2022, and combined with the results of the field research on water-saving irrigation, the response of surface water consumption and depth of groundwater to the change of cultivated land area and water-saving irrigation since the unification of water quantity regulation had been analyzed with the help of statistical analysis. The response of surface water consumption and groundwater depth to the change of cultivated area and water-saving irrigation was analyzed by statistical analysis. The results show that; under the multiple influences of the change of cultivated area, water-saving irrigation and water resource management, the surface water consumption in the middle reaches of the Heihe River has been slightly decreased since the integrated regulation; the groundwater depth in the middle reaches of the Heihe River shows an increasing trend in general, and the depth of the groundwater in the southeastern and northeastern parts of the Daman irrigation area, which is the largest cultivated area and in the central part of the Youlian irrigation area, has been obviously increased; and the impact of different irrigation methods on the depth of the groundwater is also very serious. Different irrigation methods also have great influence to the depth of groundwater, which varies with the amount of surface water infiltration and recharge in the river irrigation area, and varies with the amount of groundwater extraction in the well irrigation area and mixed irrigation area. [ABSTRACT FROM AUTHOR]

Land cover change is a direct driver of the carbon cycle in terrestrial ecosystem. In order to evaluate the carbon sequestration ability of the terrestrial ecosystem and explore the response relationship between land cover change and ecosystem carbon storage, based on InVEST model, the paper analyzed and predicted the temporal and spatial variation characteristics of carbon storage in Heihe River Basin. We quantified the influence of land cover change to the ecosystem carbon storage. The result shows as follows: The carbon storages in 1992, 2000, 2010 and 2020 are 764.49 million tons, 769.85 million tons, 773.31 million tons and 769.90 million tons respectively in Heihe River Basin, showing increasing first and then decreasing. The carbon storage has increased 5.41 million tons from 1992 to 2020 and decreased from the southwest to the northeast in space. The main reasons for the increase of carbon storage in the basin are the conversion of bare areas to cropland, sparse vegetation and grassland, the conversion of mosaic vegetation and grassland to forest, which make the increases of vegetation coverage and canopy density. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Test & Measurement Technology is the property of Publishing Center of North University of China and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Cell immortalization refers to breaking through the limitations of primary cell aging, extending cell lifespan, and achieving unlimited cell replication and proliferation through various means and methods, which is a hot and difficult research topic in the current biomedical field. Immortalized cell lines can be used for the development of biological products, exploration of aging mechanisms to extend life, etc. However, due to the limited variety of immortalized cells, relatively difficult immortalization technology, tumor risk, and animal welfare ethics, it still cannot meet the research and developing needs. The purpose of immortalizing cells is not only to permanently preserve the genetic resources of animal cells, but also to provide support for the diagnosis and treatment of various diseases, as well as to develop cell matrix for vaccines. This article reviews the latest progresses in the principles, mechanisms, and methods of immortaling animal cells, providing reference for future biomedical research and applications [ABSTRACT FROM AUTHOR]

Copyright of Industrial Water Treatment is the property of CNOOC Tianjin Chemical Research & Design Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Shanghai University / Shanghai Daxue Xuebao is the property of Journal of Shanghai University (Natural Sciences) Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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With global climate change and urbanization development, urban flooding occurs frequently and seriously affects urban development, so it is important to study the impact factors of waterlogging and carry out waterlogging risk assessment for disaster prevention and mitigation. Taking the main urban area of Beijing as the study area, the spatial data of waterlogging and the data of influencing factors were obtained, and the MaxEnt model was used to explore, identify the potential risk area of waterlogging and analyze the relationship between influencing factors and the risk of waterlogging. The results show that the dominant factors affecting the risk of flooding are distance from overpasses, building density, percentage of impervious surface, population density, storm duration, and normalized difference vegetation index(NDVI). More than 24. 6% of the study area is at risk of flooding, with a total area of about 40. 17 km 2 in the high-risk zone and 298. 09 km 2 in the medium-risk zone; the lower-risk and low-risk zones cover 423. 75 km 2 and 30. 53 km 2, respectively. The distribution of the number of flooding points in each district size relationship for Fengtai District > Haidian District > Chaoyang District > Shijingshan District > Xicheng District, Dongcheng District. Historical flooding points in the spatial distribution of the distribution pattern of the " dense south and sparse north, dense west and sparse east," and " multi-core centers, sub-centers connected to the band" characteristics. Spatial autocorrelation analysis of the risk assessment results found that the probability of risk in the middle of Fengtai District, the northeastern and southern part of Haidian District, and the eastern part of Shijingshan District is a high-high aggregation, indicating that the region may be affected by the surrounding areas and flooding disasters occur in the future, and that close attention should be paied to the region to achieve precise prevention and control. The results provide a certain reference for cities to carry out infrastructure improvement and renovation, prevention and control of potential flooding and waterlogging points, and the development of emergency mitigation plans and countermeasures. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Harbin Institute of Technology. Social Sciences Edition / Haerbin Gongye Daxue Xuebao. Shehui Kexue Ban is the property of Harbin Institute of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Influenza is a common respiratory disease caused by influenza viruses. MDCK（Madin-Darby Canine Kidney）cells have the characteristics of easy culture and high production, which can support the replication and proliferation of influenza viruses, and are widely used in the research and production of influenza viruses. With the deepening of research on influenza virus, and in order to further optimize the ability of MDCK cells to be used for influenza virus research and industrial application, researchers began to develop the domestication technology of MDCK cells. Through long-term cultivation and selection, the domesticated MDCK cells strain can better adapt to the growth environment of influenza virus, and improve the production and infectivity of influenza virus. In conclusion, the domestication technology of MDCK cells plays an important role in influenza virus research and industrial application, which may improve the production and infectivity of influenza viruses and provide better tools for influenza vaccine production and anti influenza drug development. Concurrently we have to also pay attention to the safety of MDCK cells and take appropriate measures to ensure the safety and reliability of its application. [ABSTRACT FROM AUTHOR]

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