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Copyright of Yellow River is the property of Editorial Board of Yellow River 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 Nonferrous Metals (Mineral Processing Section) is the property of Beijing Research Institute of Mining & Metallurgy Technology Group 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 Ordnance Equipment Engineering is the property of Chongqing 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 Fuzhou University is the property of Journal of Fuzhou University, 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 Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co 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.)

Copyright of Petroleum Geology & Oilfield Development in Daqing is the property of Editorial Department of Petroleum Geology & Oilfield Development in Daqing 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.)

BCI for motion imagination can directly control external electronic devices in real-time using electroencephalogram signals triggered by specific actions of autonomous imagination. MI-EEG signals have characteristics such as low signal-to-noise ratio, large intra-class differences, and small inter-class differences, resulting in low and unstable recognition performance in MI- EEG. This paper proposed a multi-layer discriminant dictionary pair learning(MDDPL) algorithm to address the issue. Different from current dictionary based MI-EEG recognition algorithm, MDDPL incorporated the dictionary pair learning into the multi-layer learning model and projects data into the discriminant subspaces through a series of nonlinear projections. With the joint learning of synthesis dictionary and analysis dictionary, MDDPL used the encoding vector of the previous layer as the input of the current layer. At the same time, MDDPL constructed the multi-classification item based on the analysis dictionary on each layer of the model, so as to ensure the minimum classification error of sparse encoding and enhance the model's class differentiation ability. In addition, MDDPL applied low rank constraints on the sparse encoding matrix of the last layer to ensure its compactness and similarity. In solving the objective function, MDDPL adopted an alternating update strategy to obtain analytical solutions for each parameter, ensuring that all parameters were simultaneously optimal. The experimental results on the international BCI competition datasets show that the MDDPL algorithm achieves the best classification performance among all comparison algorithms. [ABSTRACT FROM AUTHOR]

Copyright of Piezoelectrics & Acoustooptics is the property of Piezoelectric & Acoustooptic 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 Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine 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 Cancer Biotherapy is the property of Editorial Office of Chinese Journal of Cancer Biotherapy 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 Ordnance Equipment Engineering is the property of Chongqing 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 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.)

Copyright of Journal of Modern Laboratory Medicine is the property of Journal of Modern Laboratory Medicine 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 Fuzhou University is the property of Journal of Fuzhou University, 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 Clean Coal Technology is the property of Clean Coal 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 Neurosurgery / Linchuang Shenjingwaike Zazhi is the property of Editorial Board of Journal of Clinical Neurosurgery 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 value of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) combined with platelet-lymphocyte ratio (PLR) and neutrophil-lymphocyte ratio (NLR) in predicting short-term prognosis of acute cerebral infarction. Methods: The clinical data of 80 patients with acute cerebral infarction who were admitted to our hospital from January 2015 to December 2019 were retrospectively analyzed. According to the modified Rankin Scale (MRS) score differences, all the patients were divided into good prognosis group (mRS score ≤ 2 scores) with 50 cases and poor prognosis group (mRS score >2 scores) with 30 cases. DCE-MRI related parameters[relative value of capacity transfer constant(rKtrans), relative value of the rate constant(rKep), relative value of extracellular space volume fraction outside the blood vessel (rVe)], PLR, NLR and baseline data at admission were compared between the two groups, and Multivariate Logistic regression was used to analyze the influencing factors of poor short-term prognosis in patients with acute cerebral infarction. In addition, receiver operating characteristic (ROC) curve was used to analyze the efficacy of DCE-MRI combined with PLR and NLR in predicting short-term prognosis of acute cerebral infarction. Results: All DCE-MRI parameters in the good prognosis group were significantly higher than those in the poor prognosis group(P<0.05). PLR, NLR, age and National Institutes of Health Stroke Scale (NIHSS) score at admission in the good prognosis group were lower than those in the poor prognosis group (P<0.05). Multivariate logistic regression analysis showed that: PLR, NLR, age and NIHSS score at admission were independent risk factors for poor short-term prognosis of patients with acute cerebral infarction (OR>1, P<0.05). The area under the curve, sensitivity, specificity and Youden index of DCE-MRI combined with PLR and NLR in predicting poor short-term prognosis of acute cerebral infarction were higher than those of the above single prediction. Conclusion: DCE-MRI combined with PLR and NLR has a high value in predicting poor short-term prognosis of acute cerebral infarction, and has certain application value. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co 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.)

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 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 Shandong Medical Journal is the property of Shandong Medical Health Newspapers 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 Harbin University of Science & Technology is the property of Journal of Harbin University of Science & 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 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 Experimental Technology & Management is the property of Experimental Technology & Management 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 Acta Edulis Fungi is the property of Acta Edulis Fungi 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.)

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine 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 Tianjin Medical Journal is the property of Tianjin 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.)

Copyright of Journal of Image & Graphics is the property of Editorial Office of Journal of Image & Graphics 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 Image & Graphics is the property of Editorial Office of Journal of Image & Graphics 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 Application Research of Computers / Jisuanji Yingyong Yanjiu is the property of Application Research of Computers Edition 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 compare the anesthesia induction effect of dexmedetomidine and fentanyl drugs on sobering patients with tracheal intubation. METHODS: 120 patients undergoing transnasal conscious endotracheal intubation anesthesia admitted into the Second People’s Hospital of Shanxi from Feb. 2013 to Dec. 2014 were selected to be divided into group A and group B via the random number table, with 60 cases in each. Group A received dexmedetomidine anesthesia while group B were given fentanyl anesthesia. Changes of heart rate, blood pressure and oxygen saturation were compared between two group of patients at different time points,the intubation reactions and intubation awareness rate were recorded. RESULTS: The heart rate after immediate induction of anesthesia in group A was (73. 0 ± 15. 2) times / min, systolic blood pressure was (121. 0 ± 11. 6) mm Hg (1 mm Hg = 0. 133 k Pa), and in group B were respectively (85. 6 ± 9. 2) times / min and (131. 6 ± 8. 0) mm Hg, with statistically significant difference (P < 0. 05). In group A, there were 2 case (3. 3%) of nausea,3 cases (5. 0%) of bucking,while in group B were respectively 12 cases (20. 0%) of of nausea,15 cases (25. 0%) of bucking, 9 cases (15. 0%) of restlessness, with statistically significant difference (P < 0. 05). The awareness rate of intubation in group A was 3. 3%, compared with group B 25. 0%, the difference was statistically significant (P < 0. 05). CONCLUSIONS: Dexmedetomidine has such characteristics as stable hemodynamics, fewer intubation reactions and low intubation awareness rate in sobering patients with tracheal intubation. It is worthy of clinical application and promotion. [ABSTRACT FROM AUTHOR]

OBJECTIVE: To explore the effects of priming dexmedetomidine before rapid-sequence induction (RIS) on intubating conditions and hemodynamics. METHODS:127 cases who underwent elective gynecologic operation for tracheal intubation under general anesthesia, admitted into the Second People's Hospital of Shaanxi from Apr. 2013 to Apr. 2014 were selected as the research objects;the patients were divided into observation group and control group via the random number table. The anesthesia procedure and drugs applied in the two groups were the same .0.6 μg/kg dexmedetomidine was injected before RSI to 43 cases from the observation group, while 42 cases in the control group received 10ml 0.9%sodium chloride injection. The laryngoscopic exposure grade and PaO2, PaCO2 during RSI were compared between the two groups. RESULTS:The proportion of Cormach ~Lehane I level in the observation group was [60.94% (39/64) ], which was significantly higher than that in the control group [ 19.05% (12/63) ], the difference was statistically significant (P <0.05 ). The PaCO2 at the end of administration, immediately after intubation completion in observation group were higher than that in the control group [(36.43 ±4.11) mmHg, (46.90 ±4.30) mmHg VS(32.50 ±2.52) mmHg, (40.73 ±3.81) mmHg], the difference was statistically significant (P<0.05 ). CONCLUSIONS:Priming dexmedetomidine before rapid-sequence induction can play a role of sedation without inducing respiratory inhibition, which can reduce intubation difficulty at the same time and maintain hemodynamics during intubation in stable state. It is worthy of clinical promotion. [ABSTRACT FROM AUTHOR]