Triploporella ? edgelli n. sp., a new Dasycladalean alga from the Lower Cretaceous of Lebanon

The Dasycladalean assemblage of the Jezzinian strata (uppermost Barremian–lowermost Aptian) of Lebanon consists of two organo‐genera and eight genera with eleven species, including eight Triploporellaceae. Although Triploporella marsicana (Praturlon, 1964) was reported by Saint‐Marc from the same interval, it is not found in our material. However, a lookalike, which is herein described as Triploporella ? edgelli n. sp., is identified. This new species has cyst‐containers within the primary segments of its laterals but, because it lacks calcified secondary segments, it is left in open nomenclature.     

Multi-criteria decision making for seismic intensity measure selection considering uncertainty

Seismic intensity measure (IM) selection is associated with consideration of multiple criteria, and there are uncertainties within the selection process. In this paper, a novel multi-criteria decision making (MCDM) approach by incorporating stochastic multi-criteria acceptability analysis (SMAA) with technique for order preference by similarity to ideal solution (TOPSIS) is proposed to solve the stochastic decision making problem of IM selection. TOPSIS provides an alternative rank function, and the SMAA is used to address the uncertainties within the IM selection. The performance criteria (e.g., efficiency, proficiency, practicality, sufficiency, and correlation) are evaluated for the investigated structural components, and the decision matrix is formulated based on the criteria of each IM alternative. Furthermore, the importance of the component to system reliability is quantified in a probabilistic manner using nonlinear time history analysis and serves as the weighting factors in MCDM stage. The holistic acceptability indices indicating the overall acceptability levels of IM alternatives are computed by the proposed approach. Additionally, the effects of different IMs (e.g., average spectral acceleration, peak ground velocity, and spectral acceleration) on probabilistic seismic loss and resilience are investigated to further support the IM selection. The proposed approach is illustrated on a highway bridge, and the results are presented.     

Using tephrostratigraphy and cryptotephrostratigraphy to re-evaluate and improve the Middle Pleistocene age model for marine sequences in northeast Japan (Chikyu C9001C)

We refine the tephrostratigraphy and cryptotephrostratigraphy of the Middle Pleistocene deep-sea sediments in the C9001C cores and reconstruct the age model of the cores to provide a standard stratigraphy for the NW Pacific Ocean area. In the lower half of the cores (corresponding to marine isotopic stages [MISs] 9–18), we newly identify nine concentrations (spikes) of glass shards (numbered G17–G25 from top to bottom) below sixteen previously reported spikes (numbered G1–G16) in the upper half of the cores (MISs 1–9). We correlated two spikes (both cryptotephras) with known widespread tephras: G18 with Naruohama-IV (MIS 10d; 357 ka) and G19 with Kasamori 5 (MIS 12b–c; 434–458 ka). Although the two cryptotephra spikes cannot be distinguished by the major- and trace-element compositions of glass shards, these correlations are based upon their stratigraphic occurrence within separate glacial periods (MISs 10 and 12) as indicated by the δ¹⁸O stratigraphy of the C9001C sequence. Based on the stratigraphic positions of the Naruohama-IV and Kasamori 5 tephras, we assign the sediment units corresponding to MISs 10, 11, and 12, and revise the previous assignment of core segments corresponding to MISs 7, 8, and 9. The resulting tephra-based age model is consistent with the last occurrence of Proboscia curvirostris, but it is inconsistent with the first occurrence of Emiliania huxleyi. According to the new age model, the sedimentation rate during MISs 18–2 has ranged from 0.21 m/ky (during MIS 17) to 0.74 m/ky (during MISs 8 and 9), however, the sedimentation rate was never as high as the rate of 1.1 m/ky indicated by an earlier age model.     

震后建筑群修复施工阶段工程造价动态预控系统

震后建筑群修复施工阶段工程造价动态控制比其他阶段更具有变动性,需要高精度和高灵活性的预控系统的运用才能保证工程造价不出现偏差。在此文中,设计震后建筑群修复施工阶段工程造价动态预控系统。相关人员可在用户登录模块进入系统界面,在系统的工程信息管理模块中,采用改进遗传算法构建震后建筑群修复工程造价模型,完成震后建筑群修复工程造价动态预控系统的设计。实验结果验证,本文所设计的基于改进遗传算法的造价动态预控系统能够有效实现震后建筑群修复施工阶段的工程造价动态预控,伴随造价样本数目的增多,误差率会逐渐降低,预控性能较好;且预控灵活性始终大于95%,使用局限性仅有0.04,实用性较高,能够为震后建筑修复施工部门的工程造价控制给予借鉴。     

1974-2017年山东省大陆海岸围填海动态变化分析

围填海是沿海地区解决土地资源短缺的重要手段,及时准确地监测地区围填海时空动态变化对于合理保护海岸带资源和推进地区社会经济可持续发展具有重要意义。本文基于遥感、GIS技术,结合多种数据源,提取并分析1974-2017年山东省大陆海岸围填海时空动态变化特征。结果表明,43年来山东省大陆海岸围填海面积持续增长,到2017年总面积达到4649.26 km ²,围海为主要利用方式。围海活动多分布于黄河三角洲及莱州湾滩涂海域,填海活动则集中分布于沿海各大港口海域和城市滨海区域。全省围填海呈现出明显的阶段性特征,特别是2000年后,填海造地面积增加迅速,围海利用向填海造地转换现象突出,主要用于港口及临港产业发展和城镇与旅游基础设施建设,受沿海地区发展战略和城镇化、工业化驱动明显,围填海利用向综合化、多元化和集中集约化发展。     

Now I See: Photovisualization to Support Agricultural Climate Adaptation

To remain viable, agricultural producers will need to adapt to changing climatic conditions in coming decades. Agricultural advisers play an important role in helping producers decide to adopt appropriate adaptation practices. Photovisualizations have the potential to complement currently utilized outreach and education strategies. This research uses a focus group approach to explore (1) whether photovisualizations can aid in decision-making about climate change adaptation, and (2) what characteristics of photovisualizations are most effective at conveying spatial aspects of adaptation practices. We found that photovisualizations generate rich discussions about ecological and economic effects as well as tradeoffs associated with climate adaptation practices. To have the greatest impact, photovisualizations should be used when producers are considering implementing high-cost or high-risk projects, when practices are likely to dramatically change the visual landscape, or when a practice is unfamiliar to a producer.     

社区环境对老年人行为与健康的影响研究——不同年龄阶段老年人的群组比较

居家养老是中国老年人最主要的养老模式,社区环境成为影响老年人健康的重要因素。基于复旦大学2014年“社区老年人健康邻里调查”数据,探讨了社区环境、步行行为与老年人健康的关系。研究发现：良好的社区休闲环境对所有老年人的健康均有显著正向影响,而从低龄到高龄,社区交往环境与步行对老年健康的影响路径呈现出从个体步行行为向社区人际交往转移的特征,社区交往环境对高龄老年人的健康具有极为重要的作用。步行的减少一定程度上降低了中龄老年人的健康水平,高龄老年人在较低的社区交往环境的压抑效应下进一步降低了健康水平。重视社区休闲环境与交往空间的优化建设,增加社区交往活动的组织等将对中国老年人健康起到极为重要的改善作用。     

旅游者在场情感体验建构：理论模型与实证检验

以社会建构主义为视角,分析了在场阶段中游客情感体验建构的理论结构模型,识别出地方感和关系承诺等在场情感体验建构的2个直接影响因素,通过结构方程模型实证检验了该理论模型及各结构要素间的作用关系。研究表明：物理情境和社会情境是在场情感体验建构的2个概念要素,并构成了旅游者在场情感体验建构的理论结构模型。地方感与关系承诺是在场情感体验建构的直接影响要素,地方感中的地方认同与地方依赖分别从情感和功能层面正向影响旅游者的情感体验。关系承诺除对情感体验产生直接影响外,还中介了地方感对情感体验的影响。最后,提出游客情感体验提升的建议。     

中国创业投资城市网络空间结构演变研究

利用2007年和2017年创业投资事件数据和社会网络分析法构建中国地级及以上城市网络关系,分析种子期、初创期、扩张期和成熟期4个投资阶段创业投资城市网络的空间结构演变特征并对其影响因素进行计量分析。研究发现：4个阶段的创业投资城市网络均形成以三大城市群为核心联系区域的网络结构,并且均具有明显的高行政级别城市指向性;城市网络密度和中心化趋势均不断增强,且中后期阶段的紧密程度和协同化发展趋势领先于早期阶段;京沪深在4个阶段均演变为集聚力和辐射力前三甲城市;4个阶段的城市创业投资集聚力均呈现出向网络核心城市进一步集中的态势,而创业投资辐射力则呈现出显著的分异性;市场规模、创业企业发展基础和政府支持是影响创业投资城市网络空间结构演变的主要因素。     

四君子汤合四妙散对多发性肌炎急性期患者的肌力、肌电图及血清学指标的影响

目的：观察四君子汤合四妙散对多发性肌炎急性期患者肌力、肌电图及血清磷酸肌酸激酶（CPK）的影响。方法：将90 例多发性肌炎急性期患者采用随机数字表法分为治疗组和对照组,每组各45 例。对照组予以常规西药治疗,治疗组在对照组的基础上加用四君子汤合四妙散治疗。比较2组患者治疗前和治疗后1个月、3个月时的肌力、肌电图及血清CPK水平。结果：治疗组治疗后1个月、3个月时肌力、肌电图、血清CPK改善均优于对照组,差异均有统计学意义（P＜0.05）,而血清抗JO-1抗体水平治疗后1个月、3个月时与本组治疗前比较均无明显变化。结论：四君子汤合四妙散对多发性肌炎急性期患者血清抗JO-1抗体水平无明显影响,但能改善肌电图、血清CPK水平,对肌无力症状和体征的改善效果显著,值得临床推广。