Synthesis and Crystal Structure of [La(pic)_3(phen)_2]·CH_3CN

The Lanthanum picrate complex with 1,10 phenanthroline was synthesized, whose chemical formula can be written in [La(pic)3(phen)2]·CH3CN. The crystal X ray diffraction analysis shows that crystal belongs to monoclinic with space group P21/a and unit cell parameters:a=17.072(4),b=16.083(4),c=17.789(4),β=106.34(2)°,V=4687(4)3, Z=4,Dc=1.735g·cm3, μ=10.106cm 1,F(000)=2448,R=0.0589,Rw=0.0589. The coordination number of La3+is nine. Acetonitrile, a solvent molecule is not coordinated. Between three Pic ligands, that possesses 2 bidentate forms six member ring with La. The other is unidentate ligand. As usually, phen is bidentate ligand.广西壮族自治区自然科学基金资助项目!(No.桂自9912044

Chinese herbal medicine cream external application combined with auricular acupoint pressing therapy in pain relief for a patient with hyperplasia of mammary glands (中药膏摩联合耳穴贴压缓解1例乳腺增生症疼痛的护理)

This paper summarized the effect and related nursing management of Chinese herbal medicine cream external application combined with auricular acupoint pressing therapy in pain relief for a patient with hyperplasia of mammary glands. According to the anatomical structure of the breast and the physiological state of the breast under the influence of hormone levels, Chinese herbal cream external application combined with auricular acupoint pressing technique were carried out. Integrated nursing measures were carried out to relieve pain symptoms and anxiety status of the patient during the treatment. (本文总结中药膏摩联合耳穴贴压缓解1例乳腺增生症疼痛患者的护理经验。根据乳房的解剖结构, 乳腺生理状态受激素水平影响下呈周期性变化的规律, 采用乳腺中药膏摩联合耳穴贴压技术, 结合中西医护理措施, 明显改善患者乳房疼痛症状, 减轻患者焦虑。

Synthesis and crystal structure of [La(pic)(3)(phen)(2)]center dot CH3CN

The Lanthanum picrate complex with 1, 10-phenanthroline was synthesized, whose chemical formula can be written in [La(pic)(3)(phen)(2)] . CH3CN. The crystal X-ray diffraction analysis shows that crystal belongs to monoclinic with space group P2(1)/a and unit cell parameters: a = 17.072 (4), b = 16.083(4), c = 17.789(4), beta = 106.34(2)degrees V = 4687(4) (3), Z = 4, Dc = 1.735g.cm(3), mu = 10.106cm(-1), F(000) = 2448, R = 0.0589, Rw = 0.0589. The coordination number of La3+ is nine. Acetonitrile, a solvent molecule is not coordinated. Between three Pic ligands, that possesses 2 bidentate forms six-member ring with La. The other is unidentate ligand. As usually, phen is bidentate ligand

重离子束流横向剂量分布测量探测器及其二维成像方法

本发明涉及重离子束(包括质子束)治疗肿瘤技术的领域，尤其涉及到重离子束流横向剂量分布测量探测器及其二维成像方法，其主要特点是包括气体密封腔(1)，其内设有电离室内芯(2)，与电离室内芯(2)电连接的多路信号转接板(3)；所述的气体密封腔(1)由主体框架(1-1)和入射窗(1-2)、出射窗(1-3)组成；所述的电离室内芯(2)由两组电离室单元组成，每个单元电离室均由信号极(2-1)、绝缘垫板(2-2)和高压极(2-3)组成；所述的多路信号转接板(3)的一端设有接触端(3-3)插入气体密封腔(1)的密封口(1-5)与电离室内芯(2)的信号极(2-1)相连，另一端设有多芯连接器(3-2)为束流剖面监测探测器的信号输出端口

一台用于IMP重离子治癌线上的电离室

介绍一种用于中国科学院近代物理研究所(IMP)重离子肿瘤治疗线上、于纵向场常压下工作的气体电离室,其灵敏面积为250mm×250mm,极间距离为10mm,电离室工作气体为P10,在85kPa下流气式工作。用75MeV/u12C离子入射,测量了电离室的坪曲线。发现电离室工作坪区900—3000V,12C的Bragg峰位于13.73mm,峰的极大值半高宽(FWHM)为0.19mm

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