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目的探讨术前 MRI增强扫描动脉期强化模式对肝内胆管细胞癌（ICC）无病生存时间（DFS）和术后总生存时间（OS）的预测价值。方法回顾性分析2018年1月至2021年12月在中山大学附属第一医院手术治疗，术后病理证实为ICC的93例患者的临床、术前增强MRI、术后病理、术后随访资料。采用Kaplan-Meier生存曲线分析比较MRI增强扫描动脉期强化模式不同的三组间的DFS和OS，Cox回归分析影响ICC术后DFS和OS的危险因素。结果不同动脉期强化模式组术后DFS和OS差别有统计学意义（Log-rank检验，P < 0.05）。MRI动脉期强化模式是ICC术后DFS的独立危险因素（以弥漫性高增强为参照，外周环形强化：HR = 3.550； 95%CI： 1.16 ~ 10.8； P = 0.026；弥漫性低增强：HR = 3.430； 95%CI： 1.04 ~ 11.3； P = 0.042）。MRI动脉期强化模式和肿瘤位置是ICC术后OS的独立危险因素（以弥漫性高增强为参照，弥漫性低增强HR = 8.500； 95%CI： 1.09 ~ 66.3； P = 0.041；以肝周为参照，肿瘤位置近肝门HR = 2.583，95%CI： 1.14 ~ 5.83，P = 0.022）。动脉期强化模式预测术后1年、2年和3年DFS的受试者特征曲线（ROC）的曲线下面积（AUC）分别为0.722、0.748和0.617，预测患者术后1年、2年和3年OS的AUC分别为0.720、0.704和0.730，预测效能均优于AJCC-TNM分期系统。结论术前MRI动脉期强化模式是预测ICC术后DFS和OS的可靠指标，优于AJCC-TNM分期系统，有良好的预后预测效能，可用于ICC的临床管理。

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.)

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Objective To investigate the correlation between stress hyperglycemia ratio (SHR) and 90-day clinical prognosis of patients with acute ischemic stroke (AIS). Methods The data of AIS patients who were admitted in Department of Neurology, Yangpu Hospital, Tongji University from May 2016 to October 2020 were retrospectively analyzed. The outcome was assessed by 90-day mRS and composite vascular events (recurrent stroke, myocardial infarction and vascular death). The favorable prognosis was defined as a mRS score of 0-2, and unfavorable prognosis was defined as a mRS score of 3-6 and composite vascular events within 90 days after stroke. SHR was calculated by fasting blood glucose divided by the estimated average blood glucose. The multivariate logistic regression analysis was used to determine whether SHR was an independent influencing factor of the 90-day prognosis. ROC curve was used to evaluate the effect of SHR to predict 90-day prognosis. Spearman correlation was used to analyze the correlation between SHR and clinical factors. Results (1) A total of 1484 patients were included,with the median age of 70 (62-80) years and 948 males (63.9%). The median baseline NIHSS score was 3 (2-7). There were 923 cases (62.2%) in favorable prognosis group and 561 cases (37.8%) in unfavorable prognosis group. (2) Univariate analysis showed that the SHR in favorable prognosis group was significantly lower than that in unfavorable prognosis group [0.82 (0.72-0.95) vs . 0.86 (0.74-1.02), P =0.001]. (3) Multivariate logistic regression analysis showed that compared with the lowest quartile of SHR, the highest quartile was independently associated with the 90-day unfavorable prognosis (OR 2.22, 95%CI 1.26-3.91, P =0.006), which had statistical difference in non-diabetic group in subgroup analysis (OR 2.11, 95%CI 1.19-3.75, P =0.010), and no statistical difference in diabetic group (OR 1.53, 95%CI 0.69-3.42, P =0.298). (4) The area under the ROC curve (C-value) of SHR for predicting 90-day unfavorable prognosis was 0.552 (95%CI 0.526-0.578, P =0.001, the optimal cut-off value was 0.84, the sensitivity was 52.94%, and the specificity was 56.12%); and in non-diabetic subgroup, the C-value was 0.600 (95%CI 0.563-0.637, P

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Copyright of Acta Agriculturae Zhejiangensis is the property of Acta Agriculturae Zhejiangensis 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 Arid Zone Research / Ganhanqu Yanjiu is the property of Arid Zone Research 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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In the past, the research on the temperature rises characteristics of bearings paid more attention to the influence of bearing temperature rise and roundness error on bearing vibration, among which the literature on the influence of roundness error on bearing temperature rise was less, and the research object mostly aimed at the temperature rise of low-speed and light-load bearings. Therefore, the thermal-mechanical coupling model of angular contact ball bearing considering roundness error, bearing preload, centrifugal effect and thermal coupling was established, and the influence law of bearing raceway roundness error on bearing temperature rise was studied. Firstly, based on the principles of bearing quasi-dynamics, electrohydrodynamic lubrication theory, heat transfer theory, and Kirchhoff􀆳s energy conservation law, a thermal-force coupled model for angular contact ball bearings was established, taking into account factors such as roundness error, bearing preload, centrifugal effects, and thermal coupling. Then, the model was utilized to analyze the impact of different operating conditions and roundness errors on the temperature rise characteristics of the bearings. Finally, by comparing the model calculations with experimental results, the rationality of the model was validated. The research results indicate that,the maximum relative error between model calculation and experimental results is 5. 37% . With the increase of roundness error orders, the temperature of the bearing exhibits fluctuating changes, and the fluctuation trend becomes more significant with the increase of speed. As the temperature of the lubricating oil rises, the temperature fluctuation gradually decreases. When the order of roundness error equals n / 2 ± 2 ( n = 1,2,3…), the outer ring temperature of the bearing is lower than when roundness errors are not considered. Therefore, controlling roundness errors within specific orders can effectively reduce the temperature rise of the bearing, thus improving operational efficiency. The fluctuation of the outer ring temperature of the bearing is proportional to the amplitude of the outer ring roundness error, providing important references for bearing design. There is a periodic variation between the outer ring temperature and the channel roundness error orders, which is mapped to the number of steel balls. When the roundness error order equals ( 2n-1 ) / 4 times the number of balls ( n = 1,2, 3 …), the outer ring temperature of the bearing reaches its maximum. When the roundness error order equals n / 2 times the number of balls (n = 1,2,3…), the outer ring temperature of the bearing is at its lowest. This pattern provides specific directions for the optimization of bearings. [ABSTRACT FROM AUTHOR]

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Copyright of Feed Industry is the property of Liaoning Provincial Institute of Agricultural Mechanization 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 further standardize the management of high-alert drugs in hospitals, enhance the understanding of medical personnel on high-alert drugs, and reduce the risk of clinical medication. METHODS: A list of high-alert drugs was developed in the hospital based on the High-Alert Drug Catalog in China (2019 edition). A computer warning information system for high-alert drugs was establish to provide pop-up prompts during the prescription process for clinicians. Prescription data before the implementation of computer early warning information system (from Jul. 2020 to Dec. 2021) and after the implementation (from Jan. 2022 to Jun. 2023) were collected for comparative analysis. RESULTS: After the implementation of computer early warning information system, the irrational rate of total prescription increased from 98. 63% ( 198 427 / 201 181) to 99. 25% ( 256 428 / 258 360), and the irrational rate of high-alert drug prescription decreased from 14. 07% ( 425 / 3 020) to 3. 07% ( 153 / 4 980), the proportion of high-alert drug prescription in irrational prescriptions decreased from 15. 43% (425 / 2 754) to 7. 93% (153 / 1 932). The clinicians further deepened their understanding and awareness of high-alert drugs, and a computer early warning information system-based model for managing high-alert drugs was initially formed. CONCLUSIONS: The computer early warning information system has improved the management quality of high-alert drugs by medical personnel and ensured the medication safety of patients in geriatric hospitals. [ABSTRACT FROM AUTHOR]

Biomass energy is one of the most important eco-friendly renewable resources to reduce environmental pollution. The effective pyrolysis in a down-tube structure reactor can directly catalyze the production of bio-oil from biomass, in order to recycle the heat carriers. Among them, the flow patterns of particles are crucial to optimize the efficiency of the down-tube operation and the quality of the bio-oil products. This study aims to clarify the flow patterns of ceramic beads and biomass particles within different down-tube structures. A comparative study was conducted on the impact of square and round downtubes on particle axial velocity, particle collision rates, and biomass residence time in a cold state. Additionally, a systematic investigation was implemented to examine the effect of tube diameter on particle axial velocity and biomass residence time. A CFD-DEM coupled computational framework was established, where the fluid part used the FLUENT software for CPU multicore parallel computation, and the solid particles were simulated using EDEM software. The simulations were velocity-validated using particle image velocimetry (PIV). The experimental results showed that better performance was achieved in the consistent test and simulation velocity for ceramic beads. In terms of electrostatic effects, the experimental velocity of biomass particles was consistently lower than the simulated one. However, the difference in velocity between biomass in simulations and experiments was kept within a narrow range after electrostatic removal operations on the down-tube walls, fully meeting experimental requirements. The structural differences in the down-tubes depended on the flow of particles. The mixed particles exhibited higher time-averaged axial velocities in round tubes than those in square ones. Particularly, the maximum axial velocity of ceramic beads in round tubes was about 10% higher than in square ones. The difference was observed in the particle axial velocity at the bends of the down-tubes under different tube diameters. The velocity of ceramic beads decreased by approximately 37%, 40%, and 45% at 60, 70, and 80 mm diameters, respectively; The biomass velocity decreased by about 49%, 52%, and 54%, respectively. The ceramic beads were introduced to change the comparative flow velocities of biomass particles in square and round tubes. The biomass velocity in round tubes was greater than that in square tubes. The ceramic beads reduced the flow velocity of biomass. The maximum axial velocity of biomass decreased by 41% and 33%, respectively, in both types of tubes. In square tubes, the biomass had a higher frequency of contact collisions with the walls, where about 23% of biomass particles were contacted with the ceramic beads, primarily flowing along the walls. In round tubes, there was a higher frequency of contact collisions between biomass and ceramic beads, where about 39% of biomass particles were contacted with the ceramic beads, resulting in a more uniform distribution of biomass and movement in the central part of the tube. Biomass particles shared a larger average residence time and more concentrated distribution in square tubes, compared with the round tubes. The ceramic beads were introduced to increase the dispersion of biomass residence time distribution, which increased by 10% and 17% in the square and round tubes, respectively. The findings can provide a strong reference for the particle flow states in the down-tube pyrolysis devices, in order to better design and optimize the down-tube structures. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue 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 Electric Power Science & Technology is the property of Changsha 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.)

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[Objective]To elucidate the main influencing factors of the aesthetic quality of tree forest landscape and reflect the level of tree forest landscape quality in Xinglongshan Nature Reserve. [Method]18 typical plots were set up in 6 types of tree forest landscape forests in Xinglongshan Nature Reserve,Gansu,including pure Pinus tabulaeform is forest,pure Pinus picea forest,and mixed poplar birch forest. On the basis of a comprehensive inspection of the sample plot,the AHP method is used to construct an evaluation index system for the quality and value of the arbor forest landscape. The aesthetic quality of the arbor forest landscape is evaluated,and the comprehensive scores of each landscape type are calculated based on a certain weight. Based on the comprehensive scores,the landscape grade is divided,and the impact of landscape factors on aesthetic quality is analyzed. [Result]The results show that the landscape aesthetic quality of Liaodong oak birch mixed forest,poplar birch mixed forest,and spruce poplar mixed forest in Xinglongshan Nature Reserve,Gansu belongs to level 1,and the landscape aesthetic quality is at a high level;the aesthetic quality of the landscape in the pure forests of Qingqian and Larch belongs to level 2,and the aesthetic quality of the landscape is at an average level;the aesthetic quality of the pure forest landscape of Pinus tabulaeformis belongs to level 3,and the aesthetic quality of the landscape is at a relatively low level. By utilizing relevant knowledge in landscape,ecology,forest cultivation,and horticulture,and taking measures such as thinning,pruning,transplanting,and replanting colorful broad-leaved tree species and other plants,adjusting forest space can effectively improve the landscape quality of tree forests and form a good landscape distribution pattern. [Conclusion] The improvement of the aesthetic quality of tree forest landscape has important practical significance for the development of forest tourism and the protection of resources and environment in Xinglongshan Nature Reserve,Gansu Province. [ABSTRACT FROM AUTHOR]

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 Shenyang Agricultural University is the property of Journal of Shenyang Agricultural 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 Urban Architecture & Development 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.)

Background Schizophrenia patients are often accompanied by negative symptoms and severe cognitive impairment, but effective interventions intended to alleviate such condition are currently limited. Existing researches on group play therapy for schizophrenia is still in its initial stages, and such therapy has the potential to contribute to symptoms improvement. Objective To explore the efficacy of group play therapy on improving cognitive function and negative symptoms in hospitalized female patients with schizophrenia, so as to provide references for clinical intervention in such group. Methods This study involved 40 female patients with schizophrenia who received inpatient treatment at the Third People's Hospital of Fuyang from April 2022 to May 2023 as well as met the diagnostic criteria of the International Classification of Diseases, tenth edition (ICD-10). They were divided into study group (n=20) and control group (n=20) according to the random number table method. Both groups received routine treatment, and the study group received 10 sessions of group play therapy for 5 weeks on the basis. At baseline, Scale for Assessment of Positive Symptoms (SAPS), Scale for Assessment of Negative Symptoms (SANS), Self-rating Depression Scale (SDS), Nurses' Observation Scale for Inpatient Evaluation (NOSIE), and Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) were used for assessment. Post-therapy evaluation was conducted by using SAPS, SANS and RBANS. Patients' baseline SAPS scores, SANS scores, RBANS total scores, and various factor scores of RBANS were used as covariates, and covariance analysis was adopted to compare the scores of each scale between the two groups after treatment. Results A total of 39 patients went through the whole study. Results of covariance analysis showed that the SANS score of study group was lower than that of control group, while several scores of RBANS (including total score, immediate memory factor score, speech function factor score and attention factor score) were all higher than those in control group. Significant difference was observed between two groups in scores of both scales above (F=13. 408, 10. 331, 4. 932, 9. 967, 10. 010, P<0. 05 or 0. 01). Conclusion Group play therapy may help improve negative symptoms and cognitive function in hospitalized female patients with schizophrenia. [ABSTRACT FROM AUTHOR]

Objective·To measure the parameters of the uterine artery, umbilical artery and middle cerebral artery in a rat model of preeclampsia (PE) by Doppler ultrasound, and compare the pathological changes in placental blood vessels and pregnancy outcomes, in order to provide an effective method and reference for evaluating placental function in PE animal models. Methods· PE (n=8) and normal pregnancy (NP, n=8) groups in Sprague-Dawley (SD) rat models were established by intraperitoneal injections of N′-nitro-L-arginine methylesterhydrochloride (L-NAME) and 0.9% sodium chloride solution. Blood pressure and proteinuria indexes were detected to evaluate whether the model was successfully established. On gestational day 19 (GD19), Doppler ultrasound was utilized to measure the parameters of the uterine artery, umbilical artery and the fetal middle cerebral artery in both the PE and NP groups. After termination of the pregnancies, placental function was evaluated through the pathology of placental blood vessels and the quality of the fetuses and placentas. Results·In the PE group, both blood pressure (GD15: P=0.001; GD19: P=0.001) and proteinuria (GD15: P=0.001; GD19: P=0.001) were significantly higher than those in the NP group. The pulsatility index (PI) of the umbilical artery and uterine artery was notably elevated in the PE group compared to the NP group (both P=0.000). Furthermore, the resistance index (RI) of the fetal middle cerebral artery was significantly lower than that in the PE group (P= 0.000). While the number of fetal rats did not differ significantly, the quality of placental and fetal rats was notably lower in the PE group (P=0.006 and P=0.000, respectively). Immunohistochemical staining of placental tissue revealed that the number of placental micro vessel densities in the PE group was less than that in the NP group (P=0.001). Correlation analysis revealed that placental micro vessel density, fetal quality and placental quality were inversely related with the RI of the umbilical artery and the PI and RI of the uterine artery, and positively correlated with the S/D, PI and RI of the fetal middle cerebral artery (all P<0.05). Conculsion· Doppler ultrasound assessment of the uterine artery, umbilical artery and middle cerebral artery indices in L-NAME-induced PE rat models effectively reflects pregnancy outcomes and placental vascular pathology. This method is valuable for evaluating placental vascular perfusion in PE rat models, offering practicality and convenience for research involving animal models. [ABSTRACT FROM AUTHOR]

BACKGROUND: Artificial femoral head replacement is an effective method for the treatment of elderly unstable intertrochanteric fractures. However, the effect of lesser trochanter reconstruction in femoral head replacement for Evans-III femoral intertrochanteric fractures has not been reported. OBJECTIVE: To analyze the effect of lesser trochanter reconstruction on the outcome of artificial femoral head replacement with long stem in elderly patients with Evans-III femoral intertrochanteric fracture. METHODS: A retrospective analysis was performed on medical records of 45 elderly patients who underwent bipolar long-stem artificial femoral head replacement due to Evans-III femoral intertrochanteric fractures in the Department of Bone and Joint Surgery, Second Affiliated Hospital of Xi’an Jiaotong University from June 2017 to May 2021. According to whether the small trochanter was reconstructed during surgery (reduction and fixation), they were divided into the reconstruction group (n=25) and the non-reconstruction group (n=20). The operation time, bleeding volume, time of getting out of bed, hospital stay time, Harris scores at 3 and 6 months postoperatively, and the incidence of complications during follow-up were compared between the two groups. RESULTS AND CONCLUSION: (1) The operation time of the reconstruction group was longer (99.72±13.41 minutes) than that of the non-reconstruction group (88.90±16.53 minutes) (t=2.369, P=0.023), and there were no significant differences in bleeding volume, time of getting out of bed or hospital stay time between the two groups (P > 0.05). (2) The Harris score of the reconstruction group (69.06±5.64 points) was higher than that of the non-reconstruction group (63.35±5.93 points) at 3 months postoperatively (t=2.982, P=0.005). At 6 months postoperatively, the Harris score of the reconstruction group (86.67±4.49 points) was higher than that of the non-reconstruction group (82.34±5.68 points) (t=2.782, P=0.009). (3) In addition, no significant difference existed in the incidence of complications between the reconstruction and non-reconstruction groups (χ²=0.008, P=0.927). (4) It is concluded that in elderly patients with Evans-III femoral intertrochanteric fractures, lesser trochanter reconstruction in the artificial femoral head replacement significantly improved postoperative hip function despite increased operative time, demonstrating the importance of the lesser trochanter reconstruction in the artificial femoral head replacement for Evans-III intertrochanteric fractures in the elderly people. [ABSTRACT FROM AUTHOR]

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This article reviews the mechanism of Li+ de-intercalation and intercalation in manganese-based lithium ion-sieve, titanium-based lithium ion-sieven and aluminum-based adsorbent. The lithium extraction mechanism and the factors affecting the adsorption effect; some problems in lithium ion sieve materials are summarized, and the future research focus and development direction of lithium ion sieves are prospected. [ABSTRACT FROM AUTHOR]

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