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Copyright of International Architecture is the property of Omniscient Pte. Ltd. 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.)

Objective: To investigate the application of CT enhancement in the staging of colon cancer and the diagnostic value of combined serum CEA, CA199, CA724 and microRNA-21 in benign and malignant lesions. Methods: 85 patients with colon cancer diagnosed in our hospital from March 2018 to March 2022 were included in the observation group, and 85 patients with colon benign tumors in the same period were included in the control group. Based on the pathological results as the gold standard, the diagnostic value of CT enhanced staging in T, N, M staging of colon cancer patients was analyzed, and compared the serum CEA, CA199, CA724, microRNA-21 levels between the two groups. At the same time, evaluated the value of CT enhancement and serum CEA, CA199, CA724, microRNA-21 alone and joint in the diagnosis of benign and malignant lesions of colon cancer. Results: The accuracy of CT enhanced T staging was 88.2%, with high consistency (Kappa value=0.812); The accuracy rate of CT enhanced N staging was 63.5%. with general consistency (Kappa value=0.449); The accuracy rate of CT enhanced M staging was 90.6%, with high consistency (Kappa value-0.739). The levels of serum CEA, CA199, CA724 and microRNA-21 in the observation group were higher than those in the control group(P<0.05). The analysis results of the receiver operation characteristic curve(ROC) of the subjects showed that the area under the ROC curve (AUC) (0.95CI) of CT enhancement and serum CEA, CA199, CA724 and microRNA-21 in the diagnosis of benign and malignant lesions of colon cancer were 0.783, 0.722 (0.497~0.944), 0.694 (0.475~0.916), 0.704 (0.434~0.977), 0.687 (0.393~0.967) and 0.917 (0.829~0.982), respectively. 75 patients with malignant colon cancer were examined by CT enhancement and joint with serum CEA, CA199, CA724 and microRNA-21. The diagnostic sensitivity was 88.2%, specificity was 90.6%, and accuracy was 89.4%. Conclusion: CT enhancement can be applied to the staging of colon cancer,and the joint of CT enhancement with serum CEA, CA199, CA724 and microRNA-21 can effectively and accurately determine the benign and malignant lesions of colon cancer, which has important clinical significance in improving the diagnosis of colon cancer. [ABSTRACT FROM AUTHOR]

Organically soluble octadecamine modified copper nanoparticles were successfully prepared by using sodium octanoate as phase transfer catalyst, octadecamine as ligand agent and sodium borohydride as reducing agent. The reaction pathway was explored by 1H NMR, and the mode of interaction between copper nanoparticles and octadecamine was analyzed by infrared spectroscopy and XPS・ TEM results show that copper nanoparticles have a particle size of 1 〜4 nni. Nano-lubricants dissolved with 1 % copper nanoparticles can be stored for a long time without sedimentation under a variety of conditions ・ TGA test results explain the high solubility and stability of copper nanoparticles in solution. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Applied Entomology is the property of Chinese Journal of Applied Entomology, 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 Guangxi Normal University - Natural Science Edition is the property of Gai Kan Bian Wei Hui 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 Guangxi Normal University - Natural Science Edition is the property of Gai Kan Bian Wei Hui 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 Guangxi Normal University - Natural Science Edition is the property of Gai Kan Bian Wei Hui 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 Guangxi Normal University - Natural Science Edition is the property of Gai Kan Bian Wei Hui 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 Chemistry & Industry of Forest Products is the property of Chemistry & Industry of Forest Products 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.)