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Copyright of Bulletin of Botanical Research is the property of Bulletin of Botanical Research Editorial Department 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 Acta Sedimentologica Sinica is the property of Acta Sedimentologica Sinica 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.)

Copyright of Chinese Journal of Computational Mechanics / Jisuan Lixue Xuebao is the property of Chinese Journal of Computational Mechanics Editorial Office, Dalian University 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.)

Copyright of Journal of Clinical Nursing in Practice is the property of Journal of Clinical Nursing in Practice (Editorial Board, Shanghai Jiao Tong University Press) 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 Chinese Fishery Quality & Standards is the property of Chinese Academy of Fishery Sciences 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 Acta Sedimentologica Sinica is the property of Acta Sedimentologica Sinica 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.)

Copyright of Journal of Henan Agricultural Sciences is the property of Editorial Board of Journal of Henan Agricultural Sciences 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 Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department 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 Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department 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 Food Research & Development is the property of Food Research & Development Editorial Department 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 Journal of Agricultural Big Data is the property of Journal of Agricultural Big Data 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.)

The purpose of this paper is to study the feasibility of real-time monitoring soil total nitrogen(TN), total phosphorus(TP) and total potassium(TK) in large area by using Hyperspectral Remote Sensing technology. Based on the combined methods of field investigation and indoor data from hyperspectral measurement(350-2 500 nm), the soils in four counties(zhaoyuan county, zhaozhou county, dumeng county, and lindian county), and daqing urban area, Heilongjiang province were studied and analyzed for the characteristics of soil spectrum and soil nutrient index. The variation in soil spectral reflectance was calculated in the form of first-order differential(R)′, reciprocal(1/R), reciprocal first-order differential(1/R)′, logarithm(log R) and so on. Then the estimating models of TN, TP and TK were established by unary linear regression(ULR), multivariate linear regression(MLR) and partial least squares(PLSR), and calibration model is verified by independent samples. The results showed that the optimum absorption bands of TN, TP and TK were TN(802 nm, 1 108 nm), TP(784 nm, 1 085 nm), TK(1 079 nm, 1 578 nm), respectively, the precision of partial least squares(PLSR) was higher than that of Multivariate linear regression(MLR) model and unary linear regression model(ULR), which were TN(R2 = 0.831, RMSE = 2.506 g/kg), TP( R2 = 0.687, RMSE = 0.844 g/kg), TK(R2 = 0.832, RMSE = 0.097 g/kg). The prediction accuracy of TN and TK was higher, while the prediction result of TP was relatively lower, but it can also be used for rough estimation. Meanwhile, MODIS images were used to map the concentrations of TN, TP and TK in soil. This study confirmed that hyperspectral technology combined with specific algorithms can better predict the concentrations of TN, TP and TK in soils with larger differences, and the visualization of predictive information can be realized. It is of great practical significance for real-time and rapidly monitoring large-scale changes in soil environment, predicting the trend of soil information changes, monitoring ecological environment, establishing soil nutrient database in China and reducing the monitoring cost of soil composition. [ABSTRACT FROM AUTHOR]

Objective: To analyze the expression and prognostic value of BTG/Tob antiproliferative (APRO) protein family in gastric cancer based on big data mining. Methods: The mRNA expression levels of six members of this family in gastric cancer tissues were analyzed via the Oncomine database. Moreover, the Kaplan-Meier database was used to evaluate the effect on overall survival (OS) of patients with gastric cancer. Results: Compared with the normal gastric tissue, BTG2 expression was lower in gastric cancer tissue, BTG3 expression was upregulated in intestinal gastric cancer tissue, but downregulated in total gastric cancer tissue. Patients with lower BTG3 expression had a shorter overall survival; gastric cancer patients with 5-fluorouracil based adjuvant chemotherapy had a worse prognosis in low BTG2 expression group. Conclusions: mRNA expression of BTG2 and BTG3 in gastric cancer and normal gastric tissues were significantly different. Patients with lower BTG3 expression had a poor prognosis. In addition, BTG2 may be involved in the sensitivity of 5-fluorouracil based adjuvant chemotherapy in gastric cancer patients. [ABSTRACT FROM AUTHOR]

Objective To determine the chemical compositions of volatile oil extracted from Menthae Haplocalycis Herba (mint) collected during different harvest periods by using headspace solid phase micro-extraction coupled with gas chromatography-mass spectrometry (HS/SPME-GC-MS). Methods The volatile oils were extracted by the method of headspace solid phase micro-extraction, then the chemical compositions were determined by using GC-MS and quantified by the area normalization method. Results A total of 47 compositions were detected in Menthae Haplocalycis Herba in mature stage, and 12 of those had been identified with the total content to be 78.23%. By comparing with the relative amount of menthone, l-limonene and l-menthol extracted from the herbal medicine samples collected during different harvest periods, which are the key components in biosynthesis pathway of the herb, the preliminary determination of the best time to harvest was September. Conclusion The effective and rapid method for the determination of volatile oils provided basis for studying the dynamic changes of the chemical compositions of volatile oil extracted from Menthae Haplocalycis Herba and the proper time to harvest. [ABSTRACT FROM AUTHOR]