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日本生育支持政策及其对我国的启示

延安大学学报（社会科学版） 2024年第2期46卷 66-73页

作者：米瑞华刘玉延安大学经济与管理学院陕西延安716000

日本生育支持政策对我国优化生育支持政策具有借鉴作用。日本生育支持政策可归纳为平衡工作生活、帮助家庭育儿、转变婚育观念三大类,这些政策在一定程度上缓解了女性的职业和育儿冲突,缓解了家庭的育儿困难,也有利于扭转不利的生育观... 详细信息

日本生育支持政策对我国优化生育支持政策具有借鉴作用。日本生育支持政策可归纳为平衡工作生活、帮助家庭育儿、转变婚育观念三大类,这些政策在一定程度上缓解了女性的职业和育儿冲突,缓解了家庭的育儿困难,也有利于扭转不利的生育观念。但截至2021年,日本生育支持政策并没有真正解决日本的低生育问题。研究认为,我国可在现有生育支持政策的基础上,进一步构建支持家庭生育的公共服务体系,提供普惠创新型社会化育儿服务,培育和倡导新时代生育文化,为家庭提高生育意愿并将其转化为生育行为创造良好条件。

关键词：日本生育支持政策低生育率

神经酰胺及残余胆固醇与老年脑卒中患者颅内动脉粥样硬化性狭窄的相关性研究

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中华老年心脑血管病杂志 2024年第1期26卷 59-62页

作者：米蕊刘文韬高萌杨荣礼徐州医科大学第一临床医学院 221004 徐州医科大学附属医院老年医学科

目的探讨老年缺血性脑卒中(IS)患者神经酰胺(Cer)、三酰甘油葡萄糖乘积(TyG)指数、残余胆固醇(RC)与颅内动脉粥样硬化性狭窄(ICAS)的相关性。方法回顾性分析2022年1月至12月徐州医科大学附属医院收治的老年IS患者209例,根据颅内动脉狭... 详细信息

目的探讨老年缺血性脑卒中(IS)患者神经酰胺(Cer)、三酰甘油葡萄糖乘积(TyG)指数、残余胆固醇(RC)与颅内动脉粥样硬化性狭窄(ICAS)的相关性。方法回顾性分析2022年1月至12月徐州医科大学附属医院收治的老年IS患者209例,根据颅内动脉狭窄情况分为狭窄组122例和非狭窄组87例,检测患者Cer,计算TyG指数和RC水平。用Spearman相关性分析和logistic回归分析。结果与非狭窄组比较,狭窄组脂蛋白(a)、糖化血红蛋白(HbAlc)、TyG指数、RC、Cer16:0、Cer18:0、Cer24:1、Cer16:0/Cer24:0、Cer24:1/24:0、Cer18:0/24:0升高,Cer24:0降低(P<0.05,P<0.01)。Cer16:0、Cer18:0、Cer24:1、Cer16:0/24:0、Cer18:0/24:0、Cer24:1/24:0、脂蛋白(a)、HbAlc、TyG指数、RC与ICAS呈正相关(r=0.290、r=0.343、r=0.383、r=0.436、r=0.434、r=0.481、r=0.166、r=0.248、r=0.140、r=0.204,P<0.05,P<0.01),Cer24:0与ICAS呈负相关(r=-0.247,P<0.01)。Cer18:0、Cer24:1、Cer16:0/Cer24:0、Cer18:0/Cer24:0、RC是ICAS的重要影响因素(P<0.05,P<0.01)。结论老年IS患者Cer、TyG指数、RC水平较高,可能是发生ICAS的危险因素。

关键词：卒中神经酰胺类颅内动脉粥样硬化性狭窄甘油三酯葡萄糖乘积残余胆固醇

Dielectric and ferroelectric characteristics of Ba(Ti_(0.25)Zr_(0.25)Hf_(0.25)Sn_(0.25))O_(3)high-entropy ceramics

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Journal of Materiomics 2023年第4期9卷 634-641页

作者： rui Hu mi Bu Hang Chen Xiao Li Zhu Xiang ming Chen School of Materials Science and Engineering Zhejiang UniversityHangzhou310027China

Ba(Ti_(0.25)Zr_(0.25)Hf_(0.25)Sn_(0.25))O_(3)high-entropy ceramics were prepared by a standard solid state reaction process,and the dielectric and ferroelectric characteristics were investigated together with the *** X-ray diffraction(XRD)and energy dispersive spectroscopy(EDS)analysis demonstrated a single-phase perovskite structure in the present ceramics.A broad dielectric peak with strong frequency dispersion feature was determined,which indicated the typical relaxor nature originating from the nanoscale ferroelectric domain *** resulted from the structural distortion and chemical disorder due to high-entropy,where the long-range order of ferroelectric domains was *** homogeneous microstructure led to the reduced leakage current density and significantly improved dielectric strength,which was desired for the practical *** with the similar systems of Ba(Ti_(1-x)Zr_(x))O_(3)&Ba(Ti_(1-x)Sn_(x))O_(3),the present high-entropy ceramics indicated better relaxor ferroelectric characteristics.

关键词： High-entropy ceramic microstructure Perovskite Relaxor ferroelectric

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常见无机絮凝剂除磷效果及强化絮凝研究

广州化工 2024年第6期52卷 162-164,210页

作者：沈晓腾张海涛崔红玉米瑞雪马天宇冷瑞利山东石油化工学院化学工程学院山东东营257000

研究了常见的无机絮凝剂聚合氯化铝(PAC)、硫酸铝、硫酸亚铁、聚合硫酸铁(PFS)、氯化铁在相同条件下除磷效果,结果表明:PAC>硫酸亚铁>硫酸铝>PFS>氯化铁。探究了不同pH、投加量、搅拌强度、搅拌时间、沉淀时间下PAC、硫酸亚铁与硫酸铝... 详细信息

研究了常见的无机絮凝剂聚合氯化铝(PAC)、硫酸铝、硫酸亚铁、聚合硫酸铁(PFS)、氯化铁在相同条件下除磷效果,结果表明:PAC>硫酸亚铁>硫酸铝>PFS>氯化铁。探究了不同pH、投加量、搅拌强度、搅拌时间、沉淀时间下PAC、硫酸亚铁与硫酸铝的除磷效果,对比显示PAC的除磷效果不同条件下均好于硫酸亚铁和硫酸铝。复配助凝剂(聚丙烯酰胺、草酸钠、硅藻土)强化絮凝的除磷效果研究表明,添加聚丙烯酰胺强化絮凝效果最好,最优工作条件下PAC和硫酸铝除磷率分别达到93.11%和73.89%。

关键词：絮凝除磷助凝剂

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大科学工程采购评标指标权重测算方法探讨

项目管理技术 2024年第3期22卷 125-129页

作者：黄华晏青申晨肖婷婷米睿原泉何伟中国工程物理研究院激光聚变研究中心四川绵阳621900

大科学工程是一种经费体量大、参研单位多、物资采购频繁的项目。大科学工程中的采购项目不同于一般的政府采购项目,具有技术难度相对较高、需求具有突发性、无法提前预知全部技术参数等特点。采购过程的顺利与否将极大地影响大科学工... 详细信息

大科学工程是一种经费体量大、参研单位多、物资采购频繁的项目。大科学工程中的采购项目不同于一般的政府采购项目,具有技术难度相对较高、需求具有突发性、无法提前预知全部技术参数等特点。采购过程的顺利与否将极大地影响大科学工程的建设进度,因而对大科学工程中的外协采购方法进行讨论具有重要意义。提出一种利用信息熵进行评标的方法,结合某项目中实际发生的封装平台采购子项目信息给出评标结果,并与实际中标结果进行对比。结果发现,采用信息熵方法评标得出的结果更符合客观认知,能纠正综合评分法中某个指标权重过大而被供应商恶意利用的漏洞。相关研究结果可为类似采购项目提供新的评标思路。

关键词：价值工程大科学工程采购评标权重系数

Lateral root elongation in maize is related to auxin synthesis and transportation mediated by N metabolism under a mixed NO_(3)^(–) and NH_(4)^(+) supply

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Journal of Integrative Agriculture 2024年第3期23卷 1048-1060页

作者： Peng Wang Lan Yang Xichao Sun Wenjun Shi rui Dong Yuanhua Wu Guohua mi Key Laboratory of Tobacco Biology and Processing of ministry of Agriculture and Rural Affairs Tobacco Research InstituteChineseAcademy of Agricultural SciencesQingdao 266101China Department of Plant Nutrition College of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China College of Resources Hunan Agricultural UniversityChangsha 410128China Agro-Environmental Protection Institute Ministry of Agriculture and Rural AffairsTianjin 300191China

A mixed nitrate (NO_(3)^(–)) and ammonium (NH_(4)^(+)) supply can promote root growth in maize (Zea mays),however,the changes in root morphology and the related physiological mechanism under different N forms are still ***,maize seedlings were grown hydroponically with three N supplied in three different forms (NO_(3)^(–)only,75/25 NO_(3)^(–)/NH_(4)^(+)and NH_(4)^(+)only).Compared with sole NO_(3)^(–)or NH_(4)^(+),the mixed N supply increased the total root length of maize but did not affect the number of axial *** main reason was the increased total lateral root length,while the average lateral root (LR) length in each axle was only slightly *** addition,the average LR density of 2nd whorl crown root under mixed N was also *** with sole nitrate,mixed N could improve the N metabolism of roots (such as the N influx rate,nitrate reductase (NR) and glutamine synthase (GS)enzyme activities and total amino content of the roots).Experiments with exogenously added NR and GS inhibitors suggested that the increase in the average LR length under mixed N was related to the process of N assimilation,and whether the NR mediated NO synthesis participates in this process needs further ***,an investigation of the changes in root-shoot ratio and carbon (C) concentration showed that C transportation from shoots to roots may not be the key factor in mediating lateral root elongation,and the changes in the sugar concentration in roots further proved this ***,the synthesis and transportation of auxin in axial roots may play a key role in lateral root elongation,in which the expression of ZmPIN1B and ZmPIN9 may be involved in this *** study preliminarily clarified the changes in root morphology and explored the possible physiological mechanism under a mixed N supply in maize,which may provide some theoretical basis for the cultivation of crop varieties with high N efficiency.

关键词： maize NO_(3)^(–)/NH_(4)^(+)ratio lateral root elongation N assimilation indole-3-acetic acid

Reduction behavior of iron ore powder by high-volatile coal in thermogravimetric-gas chromatographic and kinetic analysis

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Journal of Iron and Steel Research(International) 2024年第1期31卷 92-107页

作者： rui-meng Shi Qi-yuan mi Bin Li Xiao Shi Chong Zou Jing Guo Han-jie Guo School of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an710055ShaanxiChina China International Engineering Consulting Corporation Beijing100048China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing100083China

The reduction behavior of iron ore powder by high-volatile coal was investigated,and its kinetic mechanism was *** effect of volatiles in coal on the reduction reaction of iron ore was compared by utilizing a Xinjiang lignite with a high volatile content and its pyrolysis carbon produced by high-temperature pyrolysis to remove volatiles,serving as a *** mass loss and gas composition of the samples during the reduction process were detected using thermo-gravimetric analysis and gas chromatography,and the morphological changes of iron ore powder were observed through scanning electron *** kinetic parameters of the iron oxide reduction reaction were calculated by the Flynn-Ozawa-Wall method,and the kinetic mechanism of volatile participation in the iron oxide reduction reaction was determined through the Coats-Redfern *** results indicate that the coupling effect between the high-volatile coal pyrolysis and reduction reactions occurs during the second stage of the entire coupling process,which corresponds to the late stage of coal pyrolysis with a substantial release of H_(2)and *** volatiles in coal actively participated in the reduction reaction,reducing the initiation temperature of the reaction by around 200℃.The reduction of iron oxides by high-volatile coal was jointly promoted by the"hydrogen cycle"and"carbon cycle",resulting in a higher reduction extent and metallization rate at the end of the *** high-volatile coal was used as the reductant,the average activation energy for the entire process was 76.5 kJ/mol,a significant decrease compared to the employment of pyrolysis carbon without volatiles as the reductant(1167 kJ/mol).

关键词： Direct reduction High-volatile coal Volatile Kinetics Reduction mechanism

Nerve allograft regeneration and immunological tolerance of rats with sciatic nerve transplantation after intragastric pretreatment with ultraviolet B-irradiated donor splenocytes

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Neural Regeneration Research 2008年第5期3卷 517-520页

作者： rui mi Qiang Liu Dou Wu Orthopedic Department of the First Affiliated Hospital to Shanxi Medical University Taiyuan 030001 Shanxi Province China

BACKGROUND： Nerve allograft rejection is an unavoidable problem for nerve allografts. Traumatic peripheral nerve injuries are commonly reconstructed using autogenous nerve grafts. However, this form of reconstruction is limited by insufficient autologous nerves for large gap repairs and by morbidity at the nerve donor site. OBJECTIVE： To examine sciatic nerve regeneration and immune tolerance reaction after intragastric administration of ultraviolet B-irradiated （UVB） donor splenocytes. DESIGN, TIME AND SETTING： A complete randomized grouping design and controlled experiment. The experiments were conducted in the Department of Orthopedics, the First Affiliated Hospital to Shanxi Medical University, China, between March and October 2007. MATERIALS： Fourteen adult male SD rats and fourteen male Wistar rats, weighing 250-300 g, were randomly matched as donors and acceptors. A further seven male SD rats （weight 250-300 g, age 12-16 weeks） were used for nerve isografts. Immune preparations and the Epics XL flow cytometer were purchased from B-D Company, USA. A computer-assisted electromyograph machine was provided by Keypoint P, Dantel Company, Denmark. METHODS： Splenocytes from Wistar rats were isolated, purified, and cultured, and then irradiated with ultraviolet B. In the first control group （Group 1）, the SD rats received a syngeneic SD nerve isograft. In the second control group （Group 2）, the SD rats received a nerve allograft from Wistar rats without pretreatment. In the oral-tolerance treated group （Group 3）, the SD recipient rats were inoculated with 2.5×10^7 Lewis UVB-irradiated donor splenocyte cells by intestinal tract administration at seven days before transplantation. MAIN OUTCOME MEASURES：（1） The recent end and the middle and distal end of the transplanted nerve were cut at 8 and 12 weeks after operation. Recovery of nerve regeneration was measured with HE staining using the total number, density, and diameter of the nerve fibers. （2） The level of CD25＋T

关键词： sciatic nerve transplantation, homologous immune tolerance

Comparison of the treatment duration and nursing requirements of the EarWell infant ear correction system for different types of auricle deformities

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Frontiers of Nursing 2023年第3期10卷 357-362页

作者： Wei Wei Chang-Zhi Sun Xiao-Ya Wang Jie Zhong Qian-Jun Liao Yan-Ying Cai rui mi Department of Otolaryngology Guangzhou Women and Children’s Medical CenterGuangdongGuangzhou 51000China Department of Physical Medicine and Rehabilitation Guangzhou Can Am International Medical CenterGuangdongGuangzhou 51000China

Objective:To observe whether the Ear Well infant ear correction system makes any difference in terms of the treatment effect,duration,complication rate,and nursing care requirements in different types of infant auricle ***:A total of 93 infant patients with auricular deformity(age:mities;the deformity recoil and the treatment compilation rates were much higher for these 2 deformity types,and the difference was statistically significant(Pmities.

关键词： complication rate correction effect EarWell infant ear correction system infant auricle deformities nursing care and patient guardian education treatment duration