品管圈在提高PAC项目长效可逆避孕措施立即落实率中的应用

目的:探讨品管圈在提高PAC项目人流后长效可逆避孕措施(long acting reversible contraception,LARC)立即落实率中的应用。方法:采用随机对照研究及根据样本量计算公式,从2023年12月至2024年2月于本院门诊行人工流产的821例病例中随机选取400例为对照组,经过品管圈质量循环改进后,从2024年6月至2024年8月行人工流产的816例病例中随机选取400例为观察组,利用SPSS 19.0统计软件对数据资料进行统计分析,评价改进效果。结果:单因素分析显示观察组和对照组在年龄、文化程度、产次、流产次数、LARC落实禁忌症证方面,差异无统计学意义(P>0.05);LARC立即落实率由19.5%提升至33.5%,差异有统计学意义(P<0.05);两组1、3、6个月的LARC续用率相比,差异均有统计学意义(P<0.05)。Logistic多因素回归分析显示参加品管圈活动(OR=2.262,95%CI=1.542~3.317)、年龄在21~30岁(OR=4.297,95%CI=1.152~16.026)、31~40岁(OR=3.925,95%CI=1.066~14.45)、产次≥2次(OR=1.744,95%CI=1.015~2.996)是LARC落实率的独立影响因素。结论:品管圈可明显提高PAC项目人流后LARC立即落实率和续用率,尤其是年龄在21-40岁和产次≥2次的育龄妇女更易落实,有利于促进PAC项目的推广。

HPLC法比较哈蟆油和哈蟆卵中1-甲基海因的含量

建立高效液相色谱法测定1-甲基海因含量的方法,比较哈蟆油和哈蟆卵中其含量。色谱柱:Venusil MP-C_(18)(4.6 mm×150 mm,5μm);检测波长:215 nm;流动相:100%水;流速:1.0 mL/min;柱温:30℃。结果表明,1-甲基海因在35.110 0～0.351 1μg/mL线性关系良好(r=0.999 9);哈蟆油和哈蟆卵中1-甲基海因的平均回收率(n=6)分别为100.55%和100.87%。该方法简便、准确、重复性好,可作为哈蟆油和哈蟆卵中1-甲基海因含量的测定方法。

浅谈井下作业清洁生产技术在安塞油田的推广应用

安塞油田正处在油田大规模开发时期,为完成原油生产任务,每年井下作业频次及内容在不断增加,由于油田所处地理环境的脆弱敏感性,尤其新修订的《安全生产法》和《环境保护法》实施以来对油田开发的安全环保提出了更高要求,因此开展井下作业清洁文明生产是当务之急。文章以安塞油田全面推行井下作业清洁生产工作为契机,通过深入扎实地开展密闭式清洁作业、集油式清洁作业及高效可重复使用防渗材料三种井下作业清洁生产,最大限度消除了作业产生的残液油污,实现了修井残液不落地,解决了井下作业长期以来现场存在的环保问题。

基于集总平均经验模态分解法(EEMD)的星箭解锁分离机构冲击响应分析

基于集总平均经验模态分解(Ensemble Empirical Mode Decomposition,EEMD),提出一种星箭解锁分离机构冲击响应信号分析新方法。通过EEMD,将星箭解锁分离机构解锁过程的冲击信号分解成不同模态分量(Intrinsic Mode Function,IMF)。结果表明前两阶模态分量IMF主要为冲击引起的高频振动,而IMF3之后为冲击激励引起的不同阶固有模态振动和局部振动,并通过模态实验验证了分析的正确性。

Clinical and experimental study on therapeutic effect of umbilical cord blood transplantation on severe viral hepatitis

AIM: To investigate the therapeutic effect of umbilical cordblood transplantation (UCBT) on patients with severe viralhepatitis and on liver lesions in rats.METHODS: One hundred and fifty three patients with severeviral hepatitis were included in the study between April 1990and July 2002. The patients were treated with adult plasmatransfusion (control), UCBT, plasma exchange (PE) and UCBTcombined with PE (UCBT+PE) respectively. The therapeuticeffectiveness was evaluated by serial determinations of liverfunction, lipids and immune function in all patients beforeand after the treatment. The model of experimental hepaticfailure was constructed in SD rats by injecting carbontetrachloride. Then, the rats were given normal saline, adultplasma or neonate cord blood intraperitoneally. After detectionof liver function, the rats were killed and morphologicalchanges of the liver were microscopically observed.RESULTS: UCBT group and UCBT+PE group had muchbetter improvement in liver and immune functions thancontrol group and PE group. The patients in UCBT+PE grouphad the best clinical efficacy. UCBT was safe and had noside effects. The animal experiment showed significantimprovements in liver function and survival rate in neonatecord blood group as compared with adult plasma group.The histopathology of rat′s liver indicated that neonate cordblood application could decrease the liver injury and increasehepatocellular regeneration.CONCLUSION: UCBT demonstrated a good therapeuticeffect on severe viral hepatitis and no obvious side effects.Umbilical cord blood can attenuate the liver lesions andreproduce hepatocyte. The treatment of UCBT combinedwith PE was much better than that of single plasma exchange, thus UCBT can enhance the therapeutic effect of plasma exchange on severe viral hepatitis.

Zircon U-Pb Geochronological Constraints on Rapid Exhumation of the Mantle Peridotite of the Xigaze Ophiolite, Southern Xizang(Tibet)

The Xigaze ophiolite crops out in the central segment of the Yarlung Zangbo suture zone,southern Tibet(Fig.1).It is characterized by large amounts of ultramafic units with minor mafic rocks.The mafic rocks consist of gabbros,

Design of Feedback Shift Register of Against Power Analysis Attack

Stream ciphers based on linear feedback shift register(LFSR)are suitable for constrained environments,such as satellite communications,radio frequency identification devices tag,sensor networks and Internet of Things,due to its simple hardware structures,high speed encryption and lower power consumption.LFSR,as a cryptographic primitive,has been used to generate a maximum period sequence.Because the switching of the status bits is regular,the power consumption of the LFSR is correlated in a linear way.As a result,the power consumption characteristics of stream cipher based on LFSR are vulnerable to leaking initialization vectors under the power attacks.In this paper,a new design of LFSR against power attacks is proposed.The power consumption characteristics of LFSR can be masked by using an additional LFSR and confused by adding a new filter Boolean function and a flip-flop.The design method has been implemented easily by circuits in this new design in comparison with the others.

芳香疗法联合穴位按摩在缓解非小细胞肺癌患者顺铂化疗所致恶心呕吐中的效果分析

目的:探究芳香疗法联合穴位按摩在缓解顺铂化疗所致恶心呕吐(chemotherapy-induced nausea and vomiting,CINV)中的应用。方法:本研究为一项非随机对照的类试验研究,采用便利抽样法选取2022年1月至2023年6月我院顺铂+紫杉醇方案(TP方案)化疗的非小细胞肺癌患者为研究对象。将2022年1月~6月化疗的50例非小细胞肺癌患者作为对照组,采用标准止吐方案干预,将2022年7月~12月化疗的50例非小细胞肺癌患者作为芳香组,在标准止吐方案基础上给予芳香疗法吸入干预,将2023年1月~6月化疗的50例非小细胞肺癌患者作为联合组,在标准止吐方案基础上给予芳香疗法联合穴位按摩,比较3组患者急性期(化疗用药24 h内)与延迟期恶心级别、呕吐缓解率及经济成本、护理用时的差异。结果:联合组急性期与延迟性CINV发生率及发生程度均在3组中最低,但3组急性期恶心发生率、发生程度差异无统计学意义(χ^(2)=5.178,P=0.075;Z=5.874,P=0.053),呕吐发生率、发生程度差异有统计学意义(P<0.05)。联合组第2天及第3天的恶心、呕吐发生率及发生程度均最低,3组比较差异均有统计学意义(P<0.05);两两比较显示,联合组、芳香组急性期恶心、呕吐发生率均显著低于对照组(P<0.05),且联合组延迟性恶心、呕吐发生也显著低于对照组(P<0.05),而芳香组与联合组的两两比较,差异均无统计学意义(P>0.05)。联合组生活质量评分最高,其次为芳香组,3组生活质量评分差异有统计学意义(F=8.268,P<0.001),但联合组与芳香组生活质量评分的差异无统计学意义(t=1.890,P=0.062)。联合组的护理成本与护理用时均高于芳香组。结论:芳香疗法可有效减轻急性期CINV症状,而芳香疗法联合穴位按摩不仅能够进一步减轻急性期CINV症状,还可改善延迟性CINV症状,提高患者生活质量,但需要更多的护理用时与费用。提示芳香疗法联合穴位按摩可作为非药物方法控制CINV症状,临床医护人员可在考虑护理用时和费用的情况下选择该干预措施作为辅助疗法。

骨骼肌的中医五藏归属

"脾主身之肌肉"是指脾藏化生水谷精微营养全身的骨骼肌及其辅助装置,但骨骼肌的功能并非只属于脾藏。基于中西医学研究对象的一致性,从解剖学找到全身骨骼肌的分布部位及其功能,并将这些功能与中医五藏的功能做对比,认为骨骼肌的功能应分属于中医脾藏的运化、在体合肉和固定升提功能,肺藏的司呼吸功能,肾藏的主水主生殖功能,肝藏的主疏泄调情志功能和心藏的主藏神功能。即,参与消化的骨骼肌属于主运化的脾藏;产生肌力肌紧张维持躯体运动与姿势的骨骼肌属于在体合肉的脾藏;产生张力固定内脏、支撑皮肤的筋膜属于具有固定升提功能的脾藏。参与呼吸的骨骼肌属于司呼吸的肺藏;参与排尿和分娩的骨骼肌属于主水主生殖的肾藏;参与表达情感的骨骼肌归属于主疏泄调情志的肝藏;参与表达精神活动的骨骼肌归属于主藏神的心藏。