Prediction of Radioactive Half-Lives and Atomic Nucleus Dimensions in a Concentric Shell Model or Flocon Model

Considering only the wave aspect, we determine the energy of a bond between 2 nucleons;this quantified energy is associated with a standing wave. Then, starting from the mass loss corresponding to this energy, we determine the number of bonds in this nucleus. The mass defect value for a link is used to determine a specific length at that link. Fixing a precise distance between nucleons makes it possible to determine a geometry of the nucleus and its dimensions. It makes it possible to understand when this bond is stronger than the electrostatic force and allows deducing a shell model built in a precise order. The calculation on the mass defect will also make it possible to determine that one or more nucleons concerned by the radioactivity will be bound by a single bond to the rest of the nucleus or, on the contrary, bound by several bonds which induce short 1/2 lives or, on the contrary, very long. The analysis of the bonds on H, He and C make it possible to write formulae which are then applied to the nuclei to find the radioactive 1/2 lives. To find by equations the radioactive 1/2 lives does not call into question the standard model since it concerns only the defect of mass of the nuclei with energies that are not used to find the main particles of the standard model. This model, which favours a geometric approach to the detriment of a mathematical approach based on differential equations, can lead to theoretical questions about the possibility of interpreting the structure of the nucleus in a more undulatory way. It is possible to explain radioactivity in a more deterministic way.

Prevalence and Years Lived with Disability for Dental Caries among Children Aged 0-14 Years in China, 1990-2016

The estimate of dental caries among Chinese children at the microscale level using standard methodology remains unclear. In this study, we assessed and analyzed the disease burden of childhood dental caries in China by extracting data from the Global Burden of Disease, Injuries, and Risk Factors Study 2016 （GBD 2016）. In 2016, the number of cases, prevalence, years lived with disability （YLD）, and age-standardized YLD rate of dental caries was 93.0 million, 43.0%, 32,200 person years, and 14.8 per 100,000, respectively. Across 33 provincial units, the disease burden was highest in Hubei （YLD rate 28.6 per 100,000）, lowest in Macao （9.1 per 100,000）, while geographical clustering was not observed. Compared with 1990, the prevalence in 2016 decreased from 46.8% to 43.0%, and the YLD rate decreased from 16.5 per 100,000 to 14.8 per 100,000. Given the slight decrease in dental caries burden, the prevalence and disease burden remained high among Chinese children. Strategies for addressing the spatial inequity of childhood dental caries require geographical targeting.

A retrospective investigation on the phenotype and stability of the E-protein gene in Japanese Encephalitis (JE) virus strain SA14-14-2 used live-attenuated JE vaccine

To detect retrospectively the phenotype and stability of the E-protein gene in Japanese Encephalitis （JE） virus strain SA14-14-2 used in the live-attenuated JE vaccine prepears, the viral titer was titrated by plaque formation in BHK-21 cell cultures, and the neuro-virulence of viruses was assayed in mice with body weight of 12-14 g by intracerebral inoculation. Meanwhile, the total RNA of virus gene was extracted and amplified by RT-PCR with the designed primers, and then it was purified and cloned to the expression vector pGEM-T. The recombinant plasmid was purified and sequenced. It was found that the loss of viral titer of vaccines stored in -20℃ for longer than 10 years was less than 0.5 Lg PFU/ml. No mice inoculated intracerebrally showed signs of illness or even death. The size of plagues of the vaccine virus remained to be small, and the E genes of primary virus seed SA14-14-2 and the vaccines prepared at different years （1987-2001） were unchanged, in- cluding the 8 critical amino acid sites which were different from the parent wild virus strain SA14 and the related neuro-virulence. These results indicate that the genotypic and biological characteristics of the attenuated JE virus strain SA14-14-2 and its vaccines sion noted. prepared are quite stable without any reversion noted.

高校辅导员QWL调查及核心诉求实证分析--以安徽省为例

通过对高校辅导员的工作生活质量现状的问卷调查及数据分析,得出结果:影响高校辅导员工作生活质量的因素主要包括职称晋升、才能实现、工资福利、职业声望以及领导管理水平等方面的需求;并结合访谈作定性分析得出结论:在辅导员基本诉求、核心诉求和激励性诉求中,当下最要紧的是满足其核心诉求。在新的时期,由于多种因素的作用,辅导员的社会道德观念在很大程度上产生了重构,在注重敬业奉献的同时勇于追求个人的职业幸福已成为当代高校辅导员价值选择的根本向度。

当代中国生命美学的历史贡献--与潘知常教授对话生命美学

当代中国的生命美学继承的是中国自古迄今的生命美学传统,西方的生命美学则是西方在近一二百年的一个全新美学探索。它们之间既“美美与共”又“各美其美”。西方生命美学始终未能意识到在宗教时代、科学时代之后的美学时代的莅临,当代中国的生命美学对此却已经有了充分的理论自觉;同时,西方生命美学较多关注的只是美学的批判维度,当代中国的生命美学却能够去进而关注美学的建构维度,并且对于在美学时代所亟待“按照美的规律”建构的世界也已经有了充分的理论自觉。

SYNTHESIS AND CHARACTERIZATION OF POLY{4-[2-(tert-BUTYLDIMETHYLSILOXY)ETHYL]STYRENE}AND ITS HYDROLYSIS DERIVATIVE

The living cationic polymerization of 4-[2-(tert-butyldimethylsiloxy)ethyl]styrene (TBDMES) was studied in methylcyclohexane (MeChx)/methylchloride (MeCl) (50/50 V/V) solvent mixture at -80 degrees C. The initiator 1,1-diphenylethylene (DPE) capped 2-chloro-2,4,4-trimethylpentane (TMPCl) was formed in situ in conjunction with titanium tetrachloride (TiCl(4)). The Lewis acidity of TiCl(4) was decreased by the addition of titanium(IV) isopropoxide (Ti(OiPr)(4)) to accomplish living polymerization of TBDMES. Hydrolysis of poly(TBDMES) in the presence of tetra-butylammonium fluoride yielded poly[4-(2-hydroxyethyl)styrene] (poly(HOES)). FT-IR, NMR and DSC demonstrated the hydrolysis was complete.

Characterization of Household Solid Waste in the Town of Abomey - Calavi in Benin

Identification of waste characteristics is an important step towards improving waste recovery. The aim of this research was to determine the physical and physico-chemical characteristics of waste of Abomey–Calavi city and to study the relationship between standard of living and average ratio of daily waste generated by each person. In this study the methodology used French standards to characterize particle size and typology of solid waste generated by the population of Calavi City in Benin, West Africa. According to home criteria, the study area was stratified into three distinct levels of standard of living called: high standing, medium standing and low standing;Waste from 60 households was weighed daily. The total waste produced by each household was collected seven (7) days a week, for a period of three weeks. Waste characterization was performed using ratio, size granulometry and typological composition. Physico- Chemical analysis including organic mater, pH, Total Organic Carbon, total Kjeldahl nitrogen and metal trace element were also performed. To better assess waste compostability, water extractable organic matter was quantified and qualitative identification was made with XAD8 and XAD4 resins. Results show that the amount of waste increases with the standard of living;the average ratio of daily waste generated is 0.89 kg day-1 person-1. Independently of the standard of living, fermentable compounds represent the largest proportion of waste materials (45%). Qualitative difference of waste content in organic matter is shown as a function of the population’s living standards. These results could be explained by a higher consumption of meat in the households with a higher standard of living, reflecting a greater proportion of transphilic (TPI), and hydrophilic (HPI) fractions. The C/N ratio is lower in the high standing households than in low ones. Metal trace element analysis showed a low but still significant pollution, whereas high iron and alu minum concentrations were found in all standings. In conclusion we propose a strategy for waste management in Abomey-Calavi based on sorting at the source to eliminate plastic waste and valorization of wastes via composting.

Homogeneous phenomenon of the graft when using different genotype characteristic of recipients/donors in living donor liver transplantation

AIM:To investigate the evidence of homogeneous phenomenon on CYP3A5*3 MDR1-3435 and CYP3A4*18of the liver graft after living donor liver transplantation(LDLT).METHODS:We identified the proportional change of the CYP3A5*3,MDR1-3435 and CYP3A4*18 from the peripheral blood mononuclear cell of 41 pairs recipient/donor with different genotype polymorphisms and 119liver graft biopsy samples used with the pyrosequencing technique after LDLT.Polymerase chain reaction/ligase detection reaction assay and restriction fragment length polymorphism was employed for genotyping the CYP3A5*3 and CYP3A4*18 single nucleotide poly-morphisms(SNPs).All of the recipients and donors expressed with the similar SNP genotype of CYP3A5*3,MDR1-3435 or CYP3A4*18 were excluded.RESULTS:The final genetic polymorphisms of the liver graft biopsy samples of CYP3A5*3,MDR1-3435 and CYP3A4*18 was predominated depends on the donor with restriction fragment length polymorphism and seems to be less related to the recipient.The proportional changes of G to A alleles of the 119 samples of CYP3A5*3(included A】A/G,A/G】A,A/G】G,G】A,G】A/G and A】G),C to T alleles of the 108 samples of MDR1-3435(included C】C/T,C/T】C,C/T】T,T】C/T and T】C),and T to C alleles of 15 samples of CYP3A4*18(included T/C】T and T】C/T)were significant different between the recipients and the liver graft biopsy samples(P【0.0001)and less difference when compared with the donors in the pyrosequencing analysis after LDLT.CONCLUSION:The CYP3A5*3,MDR1-3435 and CYP3A4*18 of the recipient could be modified by the donor so-called homogenous phenomenon when the recipient’s blood drained into the liver graft.

Exact Traveling Wave Solutions of Nano-Ionic Solitons and Nano-Ionic Current of MTs Using the exp(-φ (ξ ))-Expansion Method

In this work, the exp(-φ (ξ )) -expansion method is used for the first time to investigate the exact traveling wave solutions involving parameters of nonlinear evolution equations. When these parameters are taken to be special values, the solitary wave solutions are derived from the exact traveling wave solutions. The validity and reliability of the method are tested by its applications to Nano-ionic solitons wave’s propagation along microtubules in living cells and Nano-ionic currents of MTs which play an important role in biology.

活体肝移植供者和大样本健康人群生活质量的比较研究

目的调查活体肝移植供者健康相关生活质量,并与大样本健康人群做比较。方法采用横断面调查研究设计,基于欧洲五维健康量表(euro quality of life five-dimension questionnaire,EQ-5D-5L)制定调查问卷,采集数据并进行统计分析,具体方法为多个独立样本比较的秩和检验(Kruskal-Wallis H)及两独立样本的非参数检验(Mann-Whitney U秩和检验)。结果本研究中活体肝移植供者共纳入77例活体肝移植供者,男性占比23.4%,女性占比76.6%,平均身高为(161.9±9.0)cm。存在问题最多的是焦虑或沮丧维度,占比68.8%,其次是疼痛或不舒服维度,占比32.5%。问题最少的是自我照顾维度,仅占1.3%。被调查者视觉模拟标尺VAS评分为(77.97±17.78)分。调查数据显示,VAS评分最低为36分,占比1.3%,最高100分,占比9.1%。婚姻状况在自我照顾维度、不同性别在焦虑或沮丧维度上存在显著差异。活体肝移植供者和健康对照人群的行动能力、自我照顾、日常生活维度没有显著差异,而疼痛或不舒服、焦虑或沮丧维度及VAS得分有显著差异,且健康对照人群优于活体肝移植供者。结论活体肝移植供者的健康相关生活质量较好,婚姻、性别是生活质量的影响因素。活体肝移植供者与健康对照人群相比,生活质量存在差距。

“重建附近”:年轻人如何从现实中获得力量?——人类学家项飙访谈(下)

项飙访谈下篇从当下年轻人的精神文化现象和社群结构特点切入,具体地分析年轻人在现实中所遭遇的问题,以及“附近”可以在其中发挥的作用。项飙认为,二次元文化的强大是年轻人对现实的一种逃避,如何真正走向三次元的生活对今天的年轻人是一个重大挑战,社会科学需要发展出一套话语,来培养年轻人直面现实的意识,使他们从现实的矛盾和“不舒服”中看到意义和价值,而“附近”所强调的生态性视角可能成为调动这种意识的力量。项飙强调,沉溺于虚拟世界的原子化生存方式强化了社会同化的趋势,使自我变得虚幻和脆弱。近年来,“心理健康热”的流行恰恰反映了年轻人对自身困境强烈的问题意识,“附近”概念引起大众兴趣正是个体对自己在这个世界上的存在方式和存在意义的追问和反思。同时,代际关系和性别关系在“附近”建设中,既是一种重要的资源,也是一种压迫性力量。

“社区”的维度与限度

当今"社区"("共同体")概念在我国长驱直入,大有替代我国传统的诸如村庄、乡社、邻里、街坊、城邑之趋势。任何一种人群"共同体"单位形制,都是经历长时段形成的,并被赋予特定、特别的内涵。厘清这些"共同体"的内涵和外延,对中国乡土社会的认识大有裨益。"社区"是一个近代舶来概念,有其维度与限度,不可完全替代和超越我国传统的概念。

物业服务质量对顾客价值及顾客忠诚的影响:居住档次的调节作用

在竞争日益加剧的市场环境中如何提供高质量的服务,提升顾客感知价值以及顾客忠诚度是企业获取竞争优势的关键所在。本文以物业服务行业为研究背景,建构服务质量各维度对顾客价值和顾客忠诚的影响机制模型,并检验居住档次对该模型的调节效应。研究结果表明:与其他行业的服务质量维度构成不同,物业服务质量由实体环境、专业保障、服务效率和人文关怀四个维度构成;实体环境对顾客忠诚产生正向显著影响,而专业保障、服务效率、人文关怀三个服务维度虽然对顾客忠诚没有显著的直接影响,但均通过顾客价值对其产生间接影响;顾客价值是解释服务质量影响顾客忠诚的重要中介变量;居住档次部分调节了实体环境、专业保障、服务效率和人文关怀对顾客价值及顾客忠诚的影响。

红树蚬壳体尺性状对活体重的影响研究

[目的]了解红树蚬壳体尺性状与活体重的关系。[方法]随机选取广西北部湾红树蚬632个,测量壳长(X1)、壳宽(X2)、壳高(X3)和活体重(Y)。采用相关分析、通径分析和逐步回归分析等方法分析了壳体尺性状对红树蚬活体重的影响。[结果]红树蚬壳长、壳宽、壳高与活体重的相关系数均达到极显著水平(P<0.01),对活体重的决定系数总和d=0.922 3,说明它们是影响活体重的主要性状。红树蚬壳长对活体重的直接影响最大,是影响活体重的主要因素;壳高对活体重的直接影响较小。红树蚬壳长、壳宽、壳高对活体重的多元回归方程Y=-77.414+1.414X1+1.235X2+0.307X3。[结论]该研究为深入研究红树蚬的种质资源保护和人工育苗提供了理论依据。

可持续四维度理论在岭南非遗活态传承服务系统设计中的应用研究

目的在体验经济和文旅融合背景下,探讨可持续发展四维度理论在岭南非遗的活态传承服务系统设计中的应用方法。方法从可持续理论及服务设计中的可持续理念出发,以“造物本院”传统手工艺活态馆为例,讨论四个维度的可持续设计思路,即生态材料展示和自然生产方式体验呼应生态可持续属性;构建多角色利益相关者融合的服务系统回应商业可持续诉求;以人为本的场所营造和服务共创表达社会可持续愿景;多场景、沉浸式体验提升文化自觉实现文化可持续目标。结论运用服务设计思维与方法,构建多场景的非遗文化体验服务和可持续的非遗活态传承服务,是一项极其复杂、极具挑战性但又具有重要意义的工作,以四维度理论为基础的应用研究可提供一定的参考。

基于活码技术的高校智慧教育云平台构建研究

随着计算机云时代的到来,各大高校纷纷利用云计算技术创建了高校教育云平台,利用二维码技术提供云平台中的移动应用服务,推进高校教育领域的信息化建设。针对二维码容量有限、信息滞后等缺陷,提出并构建基于活码技术的高校智慧教育云平台。通过该平台,可便捷地获取信息,灵活地管理教育云平台的移动应用与虚拟化服务。更重要的是,该平台能够为活码的安全投放提供保障,可提升教育资源的利用效益。

“三生教育”:多维的视角

对"三生教育"的理论探讨,应该从多维的视角对其进行探索、研究,才能进一步深化其本质,丰富和完善"三生教育"的理论基础。事实上,"三生教育"是一种教育理念,而不是一种类型化、实体化的教育。"三生教育"有着极其丰富的内涵,具有多重特性,它是一种体验性、发展性、过程性、和谐型、基础性、立体型、渗透性的教育。

试论满族文化的生存维度

从文化本体出发,满族文化的生存维度可以划分为三个层面:历史性维度,包括不同历史时期满族文化的变异性、传统性与连续性;社会性维度,指满族文化在共时层面上与其他民族文化相互接触与影响;现代性维度,指在满族文化的历史性与社会性的维度基础上建构而成的具有明显现代特征的文化形态。这也是我们认识理解满族文化的三个维度。分析满族文化的生存维度有助于更加客观准确地理解把握满族文化,避免对满族文化的偏见与误读。

最低生活保障文献资源现状研究——基于中国国家图书馆数据库的文献分析

为了探析最低生活保障文献资源现状,本文以中国国家图书馆的最低生活保障相关馆藏数据为基础,利用分类归纳、比较分析和文献统计方法进行评述性研究。在分析中国国家图书馆数据库最低生活保障文献检索现状基础上,通过出版年份、写作方式、具体内容3个指标进行分类分析。结果表明,学术界仍需从多维度分析最低生活保障,以充实和完善文献资源,为进一步完善最低生活保障制度提供有益的方法和方向。

为什么云中无尘——阿来《云中记》叙事的空间维度

阿来的写作发生于他精神与情感的“内宇宙”,同时也形成了他文学叙事中坚韧的空间自觉和特有的空间维度——外宇宙。《云中记》中阿来借用地震故事的外壳来形象地诠释自己对人类正视苦难、超越苦难而抵达云中无尘之境的理念,叙事的空间维度发生了从脚踏大地到云中漫步的转变与提升。他以阿巴对“鬼魂”的守护和安慰为叙事线索,利用“空间形式”截断叙事时间流,延宕叙事节奏,在“六根”打通中让人与鬼魂、人与自然融为一体,构建了超越生死、善恶、恩怨的“云中生命共同体”,进入了通往民族、人类自我救赎的时空隧道,抵达了生命终极关怀的内在伦理至境。