少数民族艺术文化新载体研究——轻器械体育运动

对我国多民族传统文化进行挖掘,结合人体穴位,将具有各民族特点的舞蹈元素经过操化创编出新的操化动作。在动作完成过程中,通过手拍鼓的鼓面对人体穴位的拍击或肢体对鼓面的点击、叩击、拍打、捶击、甩击、敲击、甩打、弹击、撞击、撩击来打通人体经络,产生一定的健身与养生功效。这项创意于传统中国鼓及中国多民族特征与艺术元素的新轻器械体育运动,通过学校体育教育和群众体育发展双途径,弘扬与传承具有中国特色的民族传统文化,在探索体育与中医结合的医用性与健身性,实现全民健身和全民健康上有重要意义。国家体育总局体育哲学社会科学研究项目(1567SS10121);;\n山西省社科联2017至2018年度重点课题研究项目(SSKLZDKT2016082

Study on Hydrogen Bubble Template Fabrication of Porous Biomaterials Coatings by Electrochemically Induced Deposition

生物材料的多孔结构对于植入后细胞的响应及其与机体组织的有效整合有着决定性的影响. 采用电化学沉积方法在钛基表面成功制备多孔钙磷盐及钙磷盐/蛋白质复合膜层. 本文选择合适的电解液浓度、温度、电流密度、时间和蛋白质添加剂等，可有效地控制钙磷盐晶体的形状、尺寸和柔韧性，并初步探讨了氢气气泡模板的作用机制. 研究结果表明，动态氢气气泡是一种有效的模板，可控制钙磷盐晶体的生长速度，成功构筑纳-微米二级结构钙磷盐生物材料.So far, the pore architecture in biomaterials plays a critical role on the cell response and integration between the biomaterials and implanted environment. In this study, porous calcium phosphate (CaP) coatings and CaP/protein composite coatings have been successfully constructed on titanium substrate by using an electrochemically induced deposition technique. The shape, size and pliability of CaP crystals are controlled by electrolyte concentration, temperature, current density, time and protein additive in preparing process. In addition, the formation mechanism of the porous structure is discussed based on the “hydrogen bubble template” model. It demonstrates that the growth velocity of CaP crystals should match well with the forming-disappearing velocity of hydrogen bubble, and the pliability of the CaP crystals should fit with soft bubble. As a result, dynamic hydrogen bubble can act as an effective template to construct the nano-micro porous structured biomaterials coatings by controlling the growth velocity of CaP crystals.国家科技支撑计划（No. 2012BAI07B09）国家自然科学基金项目（No. 51203108），江苏省自然科学基金项目（No. BK2011355）和江苏省高校自然科学研究项目（No. 11KJB430011）资助作者联系地址：1. 苏州大学 现代丝绸国家工程实验室，纺织与服装工程学院，江苏 苏州 215123； 2. 厦门大学 固体表面物理化学国家重点实验室，化学化工学院化学系，福建 厦门 361005； 3. 北京技术工程研究中心，北京纳通科技集团有限公司，北京 100082Author's Address: 1. National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China; 2. State Key Lab of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China; 3. Beijing Engineering Research Center, Beijing Naton Medical Group, Beijing 100082, China通讯作者E-mail：[email protected]

Amplitude analysis of the decays D0 → π+π−π+π− and D0 → π+π−π0π0*

Using e+e− annihilation data corresponding to an integrated luminosity of 2.93 fb−1 taken at the center-of-mass energy √s = 3.773 GeV with the BESIII detector, a joint amplitude analysis is performed on the decays D0 → π+π−π+π− and D0 → π+π−π0π0 (non-η). The fit fractions of individual components are obtained, and large interferences among the dominant components of the decays D0 → a1(1260)π, D0 → π(1300)π, D0 → ρ(770)ρ(770), and D0 → 2(ππ)S are observed in both channels. With the obtained amplitude model, the CP-even fractions of D0 → π+π−π+π− and D0 → π+π−π0π0 (non-η) are determined to be (75.2 ± 1.1stat. ± 1.5syst.) % and (68.9 ± 1.5stat. ± 2.4syst.)%, respectively. The branching fractions of D0 → π+π−π+π− and D0 → π+π−π0π0 (non-η) are measured to be (0.688 ± 0.010stat. ± 0.010syst.)% and (0.951 ± 0.025stat. ± 0.021syst.)%, respectively. The amplitude analysis provides an important model for the binning strategy in measuring the strong phase parameters of D0 → 4π when used to determine the CKM angle γ(φ3) via the B− → DK− decay

Measurement of integrated luminosity of data collected at 3.773 GeV by BESIII from 2021 to 2024

We present a measurement of the integrated luminosity e+e- of collision data collected by the BESIII detector at the BEPCII collider at a center-of-mass energy of Ecm = 3.773 GeV. The integrated luminosities of the datasets taken from December 2021 to June 2022, from November 2022 to June 2023, and from October 2023 to February 2024 were determined to be 4.995±0.019 fb-1, 8.157±0.031 fb-1, and 4.191±0.016 fb-1, respectively, by analyzing large angle Bhabha scattering events. The uncertainties are dominated by systematic effects, and the statistical uncertainties are negligible. Our results provide essential input for future analyses and precision measurements

Determination of the number of ψ(3686) events taken at BESIII

The number of ψ(3686) events collected by the BESIII detector during the 2021 run period is determined to be (2259.3±11.1)×106 by counting inclusive ψ(3686) hadronic events. The uncertainty is systematic and the statistical uncertainty is negligible. Meanwhile, the numbers of ψ(3686) events collected during the 2009 and 2012 run periods are updated to be (107.7±0.6)×106 and (345.4±2.6)×106, respectively. Both numbers are consistent with the previous measurements within one standard deviation. The total number of ψ(3686) events in the three data samples is (2712.4±14.3)×10^