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为评价油棕在干热河谷地区的生长表现，于2011年从海南引进‘热油2号’‘热油4号’‘热油6号’和‘热油8号’4个油棕品种在云南保山干热河谷区试种，并按照农业农村部油棕品种区域适应性试种观测相关技术规范开展抚管和观测。经过多年引种观察，4个油棕品种在云南保山干热河谷区均能正常生长发育，表现出较强的适应性，其中‘热油2号’株高、茎高、年新增叶片数、冠幅生长量最大，‘热油4号’果穗性状、果实性状表现最优，可作为生产上小规模试验性试种材料推广种植。 To evaluate the growth performance of oil palm in the dry-hot valley, four varieties of oil palm Reyou 2, Reyou 4, Reyou 6 and Reyou 8 had been introduced from Hainan in 2011 to carry out trial planting in the dry-hot valley of Baoshan, Yunnan province. The management and observation were conducted according to the technical specifications for observation of regional adaptability trial planting of oil palm varieties issued by Ministry of Agriculture and Rural Affairs. After years of seed introduction and observation, all four oil palm varieties could grow and develop normally in the dry-hot valley area of Baoshan, Yunnan province, and had shown strong adaptability. Among them, Reyou 2 had the largest growth in plant height, stem height, annual number of new blades and crown bredth,Reyou 4 had the best performance in ear and fruit traits,so Reyou 2 and Reyou 4 could be promoted as a small-scale trial planting material for production.

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 Advanced Textile Technology is the property of Zhejiang Sci-Tech University Magazines 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 Agronomica Sinica is the property of Crop Science Society of China 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 Cotton Textile Technology is the property of Cotton Textile Technology 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 Cotton Textile Technology is the property of Cotton Textile Technology 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 Technology Economics 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 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.)

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.)

Objective To evaluate the efficacy and safety of selective posterior rhizotomy ( SPR) through unilateral keyhole microinvasive interlaminar approach in the treatment of spastic hemiplegia of lower limbs. Methods The clinical data of 23 patients with spastic hemiplegia of the lower extremities were randomly grouped and treated by SPR through unilateral keyhole microinvasive interlaminar approach and Peacock surgery, admitted to Department of Neurosurgery, Yuquan Hospital of Tsinghua University from July 2019 to July 2021, were analyzed retrospectively. The patients were followed up for 1 year. The general data, modified Ashworth score ( MAS) and gross motor function classification system score ( GMFCS) before and 1 year after surgery were analyzed. Results All 23 patients completed SPR through unilateral keyhole microinvasive interlaminar approach or Peacock surgery. The scores of MAS and GMFCS were significantly improved after operation and 1 year after the operation. Conclusions Unilateral keyhole microinvasive interlaminar approach provides a good exposure for the spinal nerve roots, the efficacy is as well as Peacock surgery. And SPR through unilateral keyhole microinvasive interlaminar approach causes less damage to the bony structure, preserve the stability of the spine, and does not increase the risk of operation. SPR by this approach has good efficacy and safety. [ABSTRACT FROM AUTHOR]

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Aiming at the influence of gear body and unbalance on noise, a reducer was taken as the research object, the relevant structural analysis and calculation were carried out, and noise test of different scheme were carried out for comparison. Firstly, modal analysis was carried out by finite element method, and two kinds of gear body of first stage driven gear was determined. Then, the noise performance was analyzed by MASTA software, smaller peak to peak of transmission error and smaller dynamic meshing force was obtained, then the optimized gear body was determined. The dynamic model of rotor shaft-gear was established by considering the difference of unbalance of special-shaped gear body. The inertia force and excitation were analyzed, and the response of different unbalance was obtained. Finally, the bench test was carried out for verify design. The results indicate that the noise of the special-shaped gear body is more than 5 dB lower than that of the traditional structure when reducer works above 8 000 r/min. When the unbalance is less than 9.29 g, the statistical result of noise test is that the P value is greater than 0.05, this indicating that the unbalance has no significant influence on the reducer’s noise within this range. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Henan University of Technology Natural Science Edition is the property of Henan University of Technology Journal 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 Chinese Journal of Preventive Veterinary Medicine / Zhongguo Yufang Shouyi Xuebao is the property of Chinese Journal of Preventive Veterinary Medicine 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 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 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 South China University of Technology (Natural Science Edition) is the property of South China 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.)

Objective To investigate the inhibitory effect and mechanism of total flavones from Psidium guajava leaves on cardiomyocyte hypertrophy induced by angiotensin II(AngII) in vivo of neonatal mice. Methods The cardiomyocytes isolated from neonatal Wistar rats were cultured in vitro and divided into the model group and low-, medium-and high-dose groups of total flavonoids from Psidium guajava leaves, meanwhile, we set up the normal control group. AngII 0. 1 μmol/L was added to the model group to induce cardiomyocyte hypertrophy. The cells in the low-, medium-and high-dose groups of total flavonoids from Psidium guava leaves were first pretreated with 50, 100, and 150 μg/m L total flavonoids from Psidium guajava leaves for 24 h, and then cultured with AngII 0. 1 μmol/L for 24 h. The cells in the normal control group were first cultured in DMEM high sugar medium containing 10% FBS for 24 h, then received the serum-free culture with DMEM containing 0. 1% FBS for 48 h. Cell area was measured by immunofluorescence staining. The total protein content of myocardial cells of each group was detected with Bradford method. The expression of angiotensin II type 1 receptor(AT1 R)and protein kinase C(PKC) was detected by Western blotting. Results Compared with the normal control group, the area of myocardial cells in the model group and low-, medium-and high-dose groups increased; compared with the model group, the area of myocardial cells in the low-, medium-and high-dose groups decreased; and the area of myocardial cells in the high-dose group was smaller than that in the low-and medium-dose group(all P<0. 01). Compared with the control group, the total protein content in the myocardial cells of the model group increased(P<0. 01). Compared with the model group, the total protein content of guava leaf flavonoids in each dose group decreased, and the high-dose group was less than the medium-and low-dose groups(all P<0. 05). Compared with the normal control group, the expression of AT1 R and PKC of the model group increased(both P<0. 01). Compared with the model group, the expression of AT1 R and PKC in different dosage groups decreased(all P<0. 01). Conclusion AngII can induce the cardiomyocyte hypertrophy in the neonatal mice, and pretreatment with total flavonoids from Psidium guajava leaves can inhibit the increase of cell size and protein synthesis, and thus inhibit cardiomyocyte hypertrophy, which is related to the regulation of AT1 R-PKC pathway. [ABSTRACT FROM AUTHOR]

Copyright of Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal of 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.)

该文通过分析输血科常规检测项目中实习生常出现的差错和在实习中遇到的疑难问题,总结输血实习注意事项和经验总结.输血前3个检测项目的教学中要强调操作前加强理论知识的学习和学会室内质控,操作中要严格按标准操作程序(SOP)操作,操作后对结果的分析,特别是对异常结果的处理.提高输血工作责任心,为其将来走上输血岗位做好准备. [ABSTRACT FROM AUTHOR]

Copyright of Research & Exploration in Laboratory is the property of Research & Exploration in Laboratory 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.)