Search

目的分析45例临床确诊的法布雷病（AFD）患者的临床特征，同时应用超声心动图二维斑点追踪技术（2D-STE）评估法布雷病患者应变图像，以期探索法布雷患者心脏早期受累在超声心动图（UCG）上的表现。方法本研究为观察性研究。共纳入确诊为AFD的患者45例，根据UCG测量左室壁有无肥厚，分为左室壁肥厚组（17例，室间隔或左室后壁厚度≥12 mm）和无左室壁肥厚组（28例）。收集患者基线资料，并对所有患者进行常规UCG检查及二维斑点追踪超声心动图分析。应用TomTec工作站分析超声心动图图像，比较两组的临床基线资料、UCG常规参数及心肌应变特征。结果本研究共纳入45例AFD患者，年龄（32.33±16.11）岁，其中男性27例（60.00%）。左室壁肥厚组17例（37.78%），无左室壁肥厚组28例（62.22%）。45例患者的左室射血分数（LVEF）均正常（＞50%）。与无左室壁肥厚组相比，左室壁肥厚组患者的靶器官受累比例明显增加。与无左室壁肥厚组相比，左室壁肥厚组患者的E/A，平均E/E'明显升高（P＜0.05）；左室壁肥厚组的整体、心肌层、心内膜以及各节段的纵向应变（LS），周向应变（CS）及径向应变（RS）的差异均无统计学意义（P 值均＞0.05）。AFD患者心肌层的整体和各节段LS、CS的绝对值均低于心内膜的对应值（P 值均＜0.05）。AFD患者的中间段的LS、RS绝对值较基底段和心尖段高（P 值均＜0.05）。结论早期收缩功能障碍与左室壁厚度无明显关系。2D-STE心肌应变可以早期监测AFD室壁肌层受累较心内膜严重，而中间段受累较心尖段和基底段轻。

目前，我国食用植物油供给严重不足和消费过度并存，导致进口依存度高，2020年食用植物油自给率下降到31.5%，供给侧和市场风险加大。利用1965—2020年我国食用植物油消费等相关数据，对我国食用植物油消费需求侧和供给侧的变化、存在的风险进行了分析。根据健康中国战略要求和我国油料生产优势及发展潜力，提出了优化我国食用植物油消费需求侧和供给侧改革的对策，对进一步优化我国食用植物油消费格局、推动我国人民健康消费、改善我国油料供给能力和结构、保障我国食用植物油供给安全具有重要意义。 At present, Chinese edible vegetable oil supply is seriously insufficient and overconsumption, result in high import dependence. In 2020, the self-sufficiency rate of edible vegetable oil decreased to 31.5%, and the supply side and market risks increased. Using the relevant data of Chinese edible vegetable oil consumption from 1965 to 2020, the changes and the risks in the consumer demand side and supply side of edible vegetable oil were analyzed.According to the strategic requirements of healthy China, production advantages and development potential of oilseeds, the countermeasures were put forward to optimize the demand side and supply side reform of Chinese edible vegetable oil consumption, which is of great significance to further optimize the consumption pattern of Chinese edible vegetable oil, promote the healthy consumption of Chinese, improve the capacity and structure of Chinese oilseed supply, and ensure the safety of edible vegetable oil supply in China.

目的 探讨BMI对不同严重程度卒中患者3个月临床结局的影响。 方法 本研究是前瞻性多中心队列研究，观察发病7 d内首次卒中住院患者的BMI与3个月卒中结局的关系。根据入院时NIHSS评分，将患者分为轻度卒中（NIHSS评分

文章针对基于光纤自相位调制（SPM）效应和四波混频（FWM）效应的全光再生技术,分析了归零差分相移键控（RZ-DPSK）调制信号在SPM效应下再生的局限性,指出只有将相位调制转换为幅度调制才可用此方法实现;同时研究了利用FWM效应实现再生时,在保证转换效率的前提下泵浦光和信号光波长与零色散波长之间需要满足的关系,以得到适合再生的转移函数。

Copyright of Traditional Chinese Drug Research & Clinical Pharmacology is the property of Traditional Chinese Drug Research & Clinical Pharmacology 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 China Brewing is the property of China Brewing 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 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.)

Copyright of Chinese Journal of Stroke is the property of Chinese Journal of Stroke 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 Geomatics & Information Science of Wuhan University is the property of Geomatics & Information Science of Wuhan University 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 China Brewing is the property of China Brewing 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 e-Education Research is the property of Northwest Normal University 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.)

Follicular fluid is the internal environment where follicular cells grow and proliferate, and the changes of its components are closely related to the functional status of follicular cells. In recent years, it has been found that exosome, a double⁃layer membrane vesicle with a diameter of about 30-150 nm, exists in many biological fluids, and its mediating role in many physiological and pathological processes has been revealed. The researchers also identified exosomes in follicular fluid and found that they are closely related to the growth and proliferation of follicular cells, indirectly influencing oocyte status, which is important for assessing oocyte quality. [ABSTRACT FROM AUTHOR]

Copyright of Mycosystema is the property of Mycosystema Editorial Board 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 Machine Tool & Hydraulics is the property of Guangzhou Mechanical Engineering Research Institute (GMERI) 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 screen the highly efficient degradation strains of beta-cyfluthrin (β-CF), and study their degradation characteristics. [Method] Gradient pressure acclimation was used to enrich and screen candidate strains for degradating β-CF from soil that had been used pyrethroids, and the taxonomic status was identified by morphological characteristics and phylogenetic analysis based on 16S rRNA gene sequence. The tolerance and degradation characteristics of candidate strains to β-CF were investigated by single-factor experiments. [Result] A dominant strain GM4 with strong environmental adaptability was obtained by screening, and the strain was identified as Acinetobacter oleivorans. The tolerance concentration of strain GM4 to β-CF could reach 600 mg/L, and the degradation rate of β-CF was 99.44% after the initial concentration of 50 mg/L,pH 8.0, inoculation amount of 10%, and temperature of 28 °C for 48 h. [Conclusion] The GM4 strain can efficiently degrade β-CF, which is an excellent germplasm resource for the bioremediation of pesticide residues of β-CF in the environment. [ABSTRACT FROM AUTHOR]

Objective To explore the effects of prohibitin 2(PHB2) on sensitivity of non-small cell lung cancer cell line A549 to erlotinib (Erl) and its potential mechanisms. Methods RACK1-specific small interfering RNA was transfected in A549 cells for knocking-down of PHB2. The effects of PHB2 inhibition on cell proliferation and apoptosis induced by Erl were observed. The colocalization of microtuble-associated protein light chain 3 alpha (LC3) and mitochondria was visualized by MitoTracker staining and green fluorescent protein-microtuble-associated protein light chain 3 alpha (GFP-LC3) transfection. Cell proliferation was detected by 5-ethynyl-2′-deoxyuridine (EdU) staining. Cell colony formation was evaluated by colony forming assay. Apoptotic index of A549 cells was evaluated by TUNEL. Western blot was used to measure the expressions of PHB2 and LC3Ⅱ. Mitochondrial transmembrane potential, cytochrome c and respiratory chain complex Ⅰ/Ⅱ/Ⅴ activity were analyzed by the commercially available kits. Results Compared with the siPHB2 and siCtrl+Erl group, the EdU-positive A549 cells and the number of cell colonies decreased significantly (P＜0.05), while the TUNEL-positive A549 cells increased significantly(P＜0.05) in the siPHB2+Erl group. In addition, compared with the siPHB2 and siCtrl+Erl group, mitochondrial transmembrane potential and respiratory chain complex Ⅰ/Ⅱ/Ⅴ activity decreased significantly (all P＜0.05) and the levels of cytochrome c increased in mitochondrial fractions (P＜0.05) and decreased in cytosolic fractions(P＜0.05) in the siPHB2+Erl group. Conclusions PHB2 inhibition significantly improves sensitivity of A549 cells to Erl, which may be explained by inhibition of PHB2-mediated mitochondrial autophagy. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Aesthetic & Plastic Surgery is the property of Chinese Journal of Aesthetic & Plastic Surgery 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 Science Technology & Engineering is the property of Chinese Society of Technology Economics 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 Modern Food Science & Technology is the property of Editorial Office of Modern Food 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 Biotechnology Bulletin is the property of Biotechnology Bulletin 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 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 Shipin Kexue/ Food Science is the property of Food Science 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.)

目的 探讨总结老年患者肢体抖动型短暂性脑缺血发作（limb-shaking transient ischemic attack，LSTIA） 的临床特点及发病机制。 方法 采用回顾性分析，收集2013年1月-2017年6月在芜湖市第一人民医院神经内科住院确诊的21 例LS-TIA患者的临床资料及治疗方案。 结果 21例患者均表现为一侧肢体短暂性、发作性不能控制的不自主抖动，所有患者均存在抖 动肢体对侧的颅内和（或）颅外大动脉重度狭窄或闭塞（100%）。患者住院期间均行磁共振成像 （magnetic resonance imaging，MRI）及磁共振血管成像（magnetic resonance angiography，MRA）检查及常 规检查，并接受抗血小板、强化他汀治疗，适当控制血压，积极治疗原发病，临床症状均明显缓解， 随访期间均未再出现TI A发作，无脑血管事件发生。 结论 一侧肢体抖动时应警惕LS-TI A可能。LS-TI A患者多存在对侧的颅内外动脉重度狭窄或闭塞，应 对此类患者完善相关血管检查，进行卒中二级预防。 Abstract: Objective To summarize the clinical characteristics and pathogenesis of limb-shaking transient ischemic attack (LS-TIA) in elderly patients, and to provide reference for clinicians. Methods The general clinical data and treatment regimen of 21 LS-TIA elderly patients in Wuhu hospital from January 2013 to June 2017 were collected, and a retrospective analysis was performed to summarize the clinical characteristics of LS-TIA. Results All of the 21 elderly patients presented with unilateral limb transient and uncontrollable involuntary shaking. All patients had contralateral intracranial and/or extracranial arteries severe stenosis or occlusion diagnosed by MRI+DWI+MRA examination. All patients were given antiplatelet and intensive statin therapy, proper control of blood pressure and treatment of primary diseases. After the treatment, clinical symptoms of all patients were alleviated, and no TIA and other cerebrovascular events occurred during the follow-up. Conclusions LS-TIA should be considered when occurring unilateral limb paroxysmal shaking. In general, LS-TIA patients have contralateral intracranial and/or external arteries stenosis or occlusion, and these patients should be given aggressive stroke secondary prevention.

Copyright of Journal of Anhui Agricultural Sciences is the property of Journal of Anhui Agricultural Sciences 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 Practical Pharmacy & Clinical Remedies is the property of Editorial Department of Practical Pharmacy & Clinical Remedies 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 Drilling Fluid & Completion Fluid is the property of Drilling Fluid & Completion Fluid 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.)

To explore mechanism of prohibitin 2(PHB2) inhibition on the apoptosis of non-small cell lung cancer cell line A549. Methods For stable knockdown of PHB2, A549 strain was infected with lentiviruses. A549 cells with PHB2 depletion were incubated with Mdivi-1(DRP1 inhibitor). Apoptotic index of A549 cells was evaluated by TUNEL and annexin V-FITC/PI. Mitochondrial morphology was visualized by MitoTracker. ATP content, citrate synthase activity and the level of cytochrome c in cytosolic and mitochondrial fractions were analyzed by commercially available kits. Western blot was used to measure the levels of PHB2, DRP1 and p-DRP1 protein expression. Results Compared with the shCtrl group, the apoptosis of A549 cells increased significantly (P＜0.05) with up-regulated DRP1-dependent mitochondrial fission (P＜0.05), down-regulated ATP content (P＜0.05) and citrate synthase activity (P＜0.05). The level of cytochrome C was decreased in mitochondrial fractions (P＜0.05). Compared with the shPHB2 group, the apoptosis of A549 cells decreased significantly (P＜0.05) with alleviated DRP1-dependent mitochondrial fission (P＜0.05), increase of ATP content (P＜0.05) and citrate synthase activity(P＜0.05). The level of cytochrome C was increased in mitochondrial fractions (P＜0.05) in the shPHB2+Mdivi-1 group. Conclusions PHB2 inhibition can significantly enhance the apoptosis rate of A549 cells, potentially through promoting DRP1-dependent mitochondrial fission. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Central China Normal University is the property of Huazhong Normal University 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 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 Electric Machines & Control / Dianji Yu Kongzhi Xuebao is the property of Electric Machines & Control 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.)

Strengthening the competitive advantage of manufacturing and promoting its high-quality development are the key points to build a modern industrial system. This study uses international market share (MS), revealed comparative advantage (RCA), trade competition index (TCI), and price index (PI) from 2005 to 2020 to analyze the evolution of manufacturing competitive advantage and its main sources in major countries. The main findings are as follows. China's labor-intensive industries maintain a strong international competitive advantage, and the international competitive advantage of some capital and technology-intensive industries is increasing. The capital and technology intensive industries in Germany, Japan, and United States have maintained a strong international competitive advantage, but some of them have shown a downward trend. The international competitive advantages of capital and technology-intensive industries such as electrical machinery and equipment manufacturing, special equipment manufacturing in China mainly come from product prices, while those in Germany, Japan, and United States mainly come from technology. Four policy suggestions are presented in this study for strengthening the competitive advantage of manufacturing: promoting technological innovation focusing on industrial basic capabilities; modernizing the manufacturing industry chain, supply chain, and innovation chain; accelerating digital, green, and service transformation; and increasing level of international cooperation and cross-border operations. [ABSTRACT FROM AUTHOR]

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.)

Copyright of Chinese Journal of Stroke is the property of Chinese Journal of Stroke 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 Distance Education (1672-0008) is the property of Zhejiang Open University 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 Electronic Communication & Computer Science 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.)

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 China Rural Water & Hydropower is the property of China Rural Water & Hydropower 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 Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering 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 systematically review the efficacy and safety of denosumab injection versus zoledronic acid injection in the treatment of postmenopausal osteoporosis, so as to explore the economics by cost-effectiveness method. METHODS: Chinese databases such as CNKI, CBM, Wanfang Data, and VIP and English databases such as PubMed, Embase and the Cochrane Library were retrieved to collect the randomized controlled trial of denosumab injection versus zoledronic acid injection in the treatment of postmenopausal osteoporosis (study group was treated with denosumab injection, control group was given zoledronic acid injection). The retrieval time was from the establishment of the database to May 2022. After literature screening and data analysis, efficacy of the two regimens was analyzed by Meta-analysis. Cost-effectiveness analysis was used to compare the economics of the two regimens from the perspective of health care system. RESULTS: Totally 3 studies were enrolled, including 1 163 patients. Meta-analysis showed that compared with zoledronic acid injection, desuzumab injection could significantly improve the percentage change of bone mineral density of lumbar spine and hip bone in postmenopausal osteoporosis ( lumbar spine: MD = 1. 07,95% CI = 0. 23-1. 91,P = 0. 01; hip: MD = 0. 89,95%CI = 0. 13-1. 65,P = 0. 02), with statistically significant difference; yet did not significantly reduce the risk of fracture(OR = 0. 52,95%CI = 0. 23-1. 17,P = 0. 11),and the difference was not statistically significant. In terms of safety, the incidence of adverse drug reactions in both regimens was low, and no particularly severe adverse drug reactions occurred. Cost-effectiveness analysis showed that the cost-effectiveness ratio of dizumab injection was lower than that of zoledronic acid injection ( 492. 03 vs. 834. 34 ). CONCLUSIONS: Desumumab is superior to zoledronic acid in increasing bone mineral density in the treatment of postmenopausa [ABSTRACT FROM AUTHOR]

Copyright of Metal Working (1674-165X) is the property of Metal Working 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 Xinjiang Agricultural Sciences is the property of Xinjiang Agricultural Sciences 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.)

The Yellow River Basin is an important strategic area for consolidating China' s success in building a moderately prosper⁃ ous society. The high-quality development of resource-based cities in the Yellow River Basin will help improve the economic strength of the basin and implement the strategy of coordinated regional development. This study first measured the quality development level of re⁃ source-based cities with the improved CRITIC weighting method. Then, a spatio-temporal analysis of high-quality development levels was performed by the equilibrium entropy model, Gini coefficient, and kernel density estimation. Based on this analysis, we used the ob⁃ stacle degree model to analyze its impact factors. The results showed that: ① The high-quality development level of the cities showed a stable and fluctuating development trend on the whole, and there were relatively obvious spatial and temporal differences in the equilib⁃ rium entropy between them. ② The overall difference in the high-quality development of these cities was declining year by year. The contribution rates of the differences within specific river reaches were relatively stable; the differences between river reaches were de⁃ creasing; and the contribution rate of hypervariable density was increasing. ③ The overall density function of resource-based cities in the Yellow River Basin changed little during the study period. The trailing curve of it was not obvious. The high-quality development was in a unimodal form as the peak value increased, and the polarization phenomenon was gradually enhanced. ④ The top five most in⁃ fluential barriers to the high-quality development of the cities changed over time. There were significant differences in the obstacles to the high-quality development of the cities in the three dimensions of economic, social, and ecological development, among which ecolog⁃ ical development had the least obstacle to the overall high-quality development of the cities. Based on the research conclusions, we make the following suggestions: ① We should strengthen the top-level design of the Yellow River Basin and straighten out the relation⁃ ship between economic development and ecological protection. We should carry out regional environmental protection, industrial optimi⁃ zation and transformation, effective utilization of resources, pollution prevention and control, and cultural inheritance and protection at the national level. ② In order to formulate a macro-governance pattern for the Yellow River Basin, we need to pay attention to the re⁃ gional development strategy of linking the eastern and western regions, promote regional development from point to area, and break through the original economic and geographical patterns. ③ We should explore the potential of the Yellow River Basin, work together to tackle the existing development problems, and enhance the comprehensive competitiveness and regional radiation power of resourcebased cities. [ABSTRACT FROM AUTHOR]

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.)