互联网金融背景下大学生消费观的培养     

李畅 《科教文汇》2020,(12):46-47

高校大学生是互联网金融消费的重要年轻群体,因其巨大的消费潜力,众多互联网金融行业更是将其作为关键的目标客户。互联网金融在给大学生提供便利、缓解小额资金短缺的同时,还带来了重物质型消费、攀比心理和从众心理凸显等诸多问题。在良莠不齐、复杂多变的互联网消费背景下,政府、高校、家庭三者必须齐心协力,对大学生群体进行消费观教育,帮助大学生养成科学的消费理念,自觉抵御不良消费行为。  相似文献   

Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool     

Honglei Lin  Zhiping He  Wei Yang  Yangting Lin  Rui Xu  Chi Zhang  Meng-Hua Zhu  Rui Chang  Jinhai Zhang  Chunlai Li  Hongyu Lin  Yang Liu  Sheng Gou  Yong Wei  Sen Hu  Changbin Xue  Jianfeng Yang  Jie Zhong  Xiaohui Fu  Weixing Wan  Yongliao Zou 《国家科学评论(英文版)》2020,7(5):913

Chang’E-4 landed in the South Pole-Aitken (SPA) basin, providing a unique chance to probe the composition of the lunar interior. Its landing site is located on ejecta strips in Von Kármán crater that possibly originate from the neighboring Finsen crater. A surface rock and the lunar regolith at 10 sites along the rover Yutu-2 track were measured by the onboard Visible and Near-Infrared Imaging Spectrometer in the first three lunar days of mission operations. In situ spectra of the regolith have peak band positions at 1 and 2 μm, similar to the spectral data of Finsen ejecta from the Moon Mineralogy Mapper, which confirms that the regolith''s composition of the landing area is mostly similar to that of Finsen ejecta. The rock spectrum shows similar band peak positions, but stronger absorptions, suggesting relatively fresh exposure. The rock may consist of 38.1 ± 5.4% low-Ca pyroxene, 13.9 ± 5.1% olivine and 48.0 ± 3.1% plagioclase, referred to as olivine-norite. The plagioclase-abundant and olivine-poor modal composition of the rock is inconsistent with the origin of the mantle, but representative of the lunar lower crust. Alternatively, the rock crystallized from the impact-derived melt pool formed by the SPA-impact event via mixing the lunar crust and mantle materials. This scenario is consistent with fast-cooling thermal conditions of a shallow melt pool, indicated by the fine to medium-sized texture (<3 mm) of the rock and the SPA-impact melting model [Icarus 2012; 220: 730–43].  相似文献   

风险投资与政府补贴对新材料企业技术创新的激励效应及差异     

王昶  王恺霖  宋慧玲 《资源科学》2020,42(8):1566-1579

随着近年资源应用领域逐步向高新技术产业延伸,下游材料端的技术创新突破已成为重构中国资源产业优势的战略着力点。本文利用2008—2017年中国新材料企业面板数据,运用PVAR模型和脉冲响应函数,从技术生命周期视角探究了风险投资与政府补贴对中国新材料企业技术创新的激励效应及其差异性。研究表明：①对于新材料企业,风险投资和政府补贴通过提升企业研发投入进而促进了新材料企业的技术创新。其中,风险投资的激励效应更明显但具有短期性,政府补贴的激励效应则具有滞后性;②对于导入期新材料企业,风险投资对其技术创新的激励效应较小,而政府补贴正好弥补了市场资金配置的不足;对于成长期新材料企业,风险投资对其技术创新的长期激励效应强于政府补贴;对于成熟期新材料企业,政府补贴不能促进其技术创新,风险投资的激励效应则比较显著。因此,为更好地提升中国新材料技术创新水平,政府应引入分类补贴机制,重点向导入期新材料企业倾斜,并引导风险资本投入成长期和成熟期新材料企业。  相似文献   

黄河流域农村饮水安全问题及对策     

袁星  孔畅  王利  韦炳干  李海蓉  杨林生 《资源科学》2020,42(1):69-77

21世纪以来中国农村饮水安全工程建设取得重大成就,截至2018年底,全国农村自来水普及率已达到80%以上,解决了绝大多数农村人口的安全饮水问题。然而黄河流域部分农村地区水资源短缺、水源水质差、饮水型地方病危害重、饮用水水源地缺乏保护和农村饮水安全工程不完善等问题突出,饮水安全保障工作相对于全国农村饮水安全工程进程较为滞后。为切实解决黄河流域农村人民群众的饮水安全问题,促进黄河流域生态保护和高质量发展,本文综述了目前黄河流域饮水安全突出的问题,并结合全国农村饮水提质增效的工作目标,提出了进一步做好流域内农村饮水安全工作的建议,包括实现水资源动态配置、加强饮水安全设施建设和工程管理、强化水源地保护与监测等,从优先保障饮用水水量和水质方面全面维护流域内农村地区的饮水安全。  相似文献   

不同营养条件对杏鲍菇菌丝生长量的影响     

晏爱芬  常宏富 《保山学院学报》2016,(2):18-20

以杏鲍菇的菌落直径作为指标,采用平板固体培养法,研究不同碳源和氮源对杏鲍菇菌丝生长的影响情况;结果表明:杏鲍菇菌丝生长的最适碳源是麦芽糖,其次是蔗糖、果糖、葡萄糖、乳糖;最适氮源为酵母粉,其次是牛肉膏、蛋白胨、硝酸铵、硫酸铵,其中,有机氮源明显优于无机氮源.  相似文献   

昆明本地都市报发行现状研究     

李昌  刘纯怡 《新闻界》2010,(3)

本文对昆明本地都市报发行现状进行了分析.  相似文献   

Tianxia system on a snail's horns     

Chishen Chang 《Inter-Asia Cultural Studies》2013,14(1):28-42

Abstract

This article aims to report the findings from some recent researches on the historical formation of the concept of tianxia and its original meanings. In the light of these findings, I would like to make some comments on the Chinese philosopher Zhao Tingyang's works on the tianxia system. I demonstrate that the concept of tianxia portrayed by Zhao is at odds with the historical concepts of tianxia in many ways, and that the challenge raised by the latter for Chinese nationalism today is unanswered. I also examine Zhao's proposal of the tianxia system and point out that this proposal as a universalist commitment to a philosophy of the world seems to have failed on both the motivational and theoretical levels. In conclusion, I make an observation about a problem which might have a profound but inimical effect on the creativity of Chinese intellectual minds, namely, the urge to make chinoiserie theories at the expense of theoretical coherence and logical consistency.  相似文献   

夜游塞纳河     

赵畅 《文化交流》2010,(2):79-81

塞纳河是法国东北部的一条大河，发源予法国北部浪格尔高地，全长776公里．注入英吉利海峡。它穿过桩国的心脏一首都巴黎。塞纳河在巴黎的诞生及发展中扮演着重要的角色。是啊，是塞纳河上的西岱岛孕育了巴黎。公元六世纪巴黎成为法国的王都后，历代国王大兴土木，相继建造了教堂，王宫和桥梁等各种建筑，沿着塞纳河不断向外扩张蔓延，  相似文献   

Superior short-term learning effect of visual and sensory organisation ability when sensory information is unreliable in adolescent rhythmic gymnasts     

Hui-Ya Chen  Hsiao-Yun Chang  Yan-Ying Ju  Hung-Ting Tsao 《Journal of sports sciences》2017,35(12):1197-1203

Rhythmic gymnasts specialise in dynamic balance under sensory conditions of numerous somatosensory, visual, and vestibular stimulations. This study investigated whether adolescent rhythmic gymnasts are superior to peers in Sensory Organisation test (SOT) performance, which quantifies the ability to maintain standing balance in six sensory conditions, and explored whether they plateaued faster during familiarisation with the SOT. Three and six sessions of SOTs were administered to 15 female rhythmic gymnasts (15.0 ± 1.8 years) and matched peers (15.1 ± 2.1 years), respectively. The gymnasts were superior to their peers in terms of fitness measures, and their performance was better in the SOT equilibrium score when visual information was unreliable. The SOT learning effects were shown in more challenging sensory conditions between Sessions 1 and 2 and were equivalent in both groups; however, over time, the gymnasts gained marginally significant better visual ability and relied less on visual sense when unreliable. In conclusion, adolescent rhythmic gymnasts have generally the same sensory organisation ability and learning rates as their peers. However, when visual information is unreliable, they have superior sensory organisation ability and learn faster to rely less on visual sense.  相似文献   

An interview with Marie-José Mondzain: what is an image?     

Chang Briankle G. 《Inter-Asia Cultural Studies》2013,14(3):483-486

ABSTRACT

Marie-Jose Mondzain is one of the major philosophers writing about image, iconography, and representation today. In this interview, she discusses a few of the central ideas in her approach to and thinking about the nature of image and image-making as they bear upon the emergence of subjectivity and visibility in general. According to Mondzain, images are not visual objects we may or may not see; rather they are the site where the visible and its invisibility crisscross each other in opening the field of presence. Images, as Mondzain says in the interview, are cracks or leaks in being. They are where lights first come in and where man and beings are born to each other in their being-in-the world, that is, in their truth. Moving beyond historical and theoretical reflections, Mondzain turns to discuss things and scenes of mass media of late, addressing issues of pleasure, anxiety, desire, and the like, wherein ideologies, power, and the lure of images can be seen to intersect with our everyday life that has become irrevocably one of passive mobility. To the point at every turn, her answers to questions in this interview provide a glimpse to her forceful thinking and insights.  相似文献