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Copyright of CT Theory & Applications is the property of Editorial Department of CT Theory & Applications 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 evolving patterns of relationship between NIHSS scores at different onset times in acute ischemic stroke through network analysis. Methods Data on NIHSS scores from 833 patients with acute ischemic stroke were collected. Network analysis methods were used to compare the between NIHSS scores within 72 hours of onset and on day 7. Resailts In the network analysis of NIHSS scores within 72 hours and on day 7 of onset in patients with acute ischemic stroke, the strongest node strength was observed in upper limb movement (Strength=1.48) and level of cognition (Strength二 1.75). The strongest edge weight was both in upper limb movement-lower limb movement (edge weight strength of 0.63 and 0.69). The top three nodes were upper limb movement, lower limb movement, and level of cognition. The network stability for the two time points were 0.75 and 0.67, and there was no significant difference between the two network models (P=0.38). Conclusion Motor function and level of cognition are important factors for the early course of acute ischemic stroke patients, and their correlation and prediction have high consistency in the acute period. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming Medical Journal 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.)

Furfural was prepared in the mixed solution of y-valerolactone and water by using corncob as raw material and macroporous strong acid ion exchange resin as catalyst. The effects of reaction tempera. ture, reaction time, solvent and catalyst amount on the yield of furfural were investigated. The central composite design (CCD) and response surface methodology (RSM) were used to optimize the catalytic reaction conditions of corncob. The results show that the optimal conditions are corncob 0. 5 g, catalyst load 0. 55 g, temperature 153 °C, reaction time 66 mirk In addition, deactivation of catalyst was also explored as the main reason. With the progress of the reaction, the catalyst showed a gradual deactivation behavior, but the catalyst recovered its activity after simple treatment with sulfuric acid. Acid titration analysis confirmed that leaching of acid sites and decrease of acid density were the main causes of inactivation. [ABSTRACT FROM AUTHOR]