1-吡啶-3-[4-(苯基偶氮)苯基]-三氮烯与镍的显色反应研究

研究了1-吡啶-3-[4(苯基偶氮苯基]-三氮烯(PYPAPT).在NaOH碱性条件中,非离子表面活性剂Tween存在下,与金属镍离子(Ni~(2+))的显色反应。Ni~(2+)与PYPAPT形成1:3的红色配合物,配合物最大吸收位于536nm,表观摩尔吸光系数为9.00×10~1,Ni~(2+)离子含量在0～0.32mg/L符合比尔定律。研究的新方法用于测定铝合金中的镍,结果满意。     

Counterspaces for women of color in STEM higher education: Marginal and central spaces for persistence and success

Counterspaces in science, technology, engineering, and mathematics (STEM) are often considered “safe spaces” at the margins for groups outside the mainstream of STEM education. The prevailing culture and structural manifestations in STEM have traditionally privileged norms of success that favor competitive, individualistic, and solitary practices—norms associated with White male scientists. This privilege extends to structures that govern learning and mark progress in STEM education that have marginalized groups that do not reflect the gender, race, or ethnicity conventionally associated with STEM mainstream success, thus necessitating spaces in which the effects of marginalization may be countered. Women of color is one such marginalized group. This article explores the struggles of women of color that threaten their persistence in STEM education and how those struggles lead them to search out or create counterspaces. It also examines the ways that counterspaces operate for women of color in STEM higher education, particularly how they function as havens from isolation and microaggressions. Using a framework of Critical Race Theory (CRT) and intersectionality theory and drawing on interview data from 39 women of color about their STEM higher education experiences, we describe five ways in which counterspaces operate: in peer‐to‐peer relationships; mentoring relationships; national STEM diversity conferences; STEM and non‐STEM campus student groups; and STEM departments. Whereas most research has discussed counterspaces as racially or ethnically homogeneous social groups of peers at the margins, our research found that counterspaces vary in terms of the race/ethnicity, gender, and power levels of participants. We found that counterspaces can be physical settings, as well as conceptual and ideological. Additionally, we identified counterspaces both at the margins and at the center of STEM departments. Thus, our research expands the existing understanding of the types and functions of counterspaces and broadens the definition of what locations can be and should be considered counterspaces. © 2017 The Authors. Journal of Research in Science Teaching Published by Wiley Periodicals, Inc. on behalf of National Association for Research in Science Teaching. J Res Sci Teach 55: 206–245, 2018     

传统与现代的融合与互渗——从传统装饰造型中借鉴到转换的装饰造型法

装饰造型法由从传统装饰造型中借鉴到由传统向现代转换,重点要落在转换。如何借鉴,又如何转换,可用"融合与互渗"来概括其中之精要。从借鉴的角度来谈,是以传统为主体而言的,提倡从传统文化艺术、精神,传统的造型元素、表现技法及材料入手,将现代因素渗入传统;从转换的角度来谈,是以现代为主体而言的,可从图形创意阶段与图形表现阶段入手,将传统因素融入现代之中。     

诗歌与神话的重奏——读迟子建的《逝川》

《逝川》是迟子建一贯坚持的“用温情表达辛酸”的佳作,对平凡人生的诗意发现,对人性的单纯美好的咏叹,对沉重生命的无奈和超脱,以及诗化的叙述结构和语言使它具有一种诗歌般唯美忧伤的气质。而四处弥漫的神秘气息和悲悯情怀又使它具有深刻意蕴和神话色彩。文章从这两个侧面来赏析《逝川》。     

视觉的盛宴——评张爱玲小说的色彩语言

张爱玲在其小说创作中运用独特的色彩语言暗示小说情节的发展,烘托环境气氛、表现人物的内心冲突,塑造性格迥异的人物形象,取得了较高的艺术成就,带给读者一场视觉的盛宴。     

题款在中国花鸟画中的作用新解

题款是中国花鸟画构图艺术的有机组成部分。题款对画面的气势能起到：引、堵、辅、破、拉、挂、抵、压等作用。为了画面的整体效果，还要悉心选择好题款的位置。     

浅谈艺术治疗在幼儿美术教育中的应用

美术作品是儿童表达自己情感体验与生活经历的直接途径之一。教师可以通过幼儿的美术作品了解他们的所思所想，进而借助艺术治疗帮助那些在生活中感觉抑郁或困惑，甚至有心理疾病的儿童。     

镁铝交联膨润土处理含重金属有机废水的研究

以铝镁双金属离子低聚物为交联剂,制备了复合联膨润土,用于处理含重金属的有机废水.通过改变pH值、用量和处理时间等因素研究了镁铝交联膨润土对重金属及有机物质的吸附特性和处理效果.研究表明,膨润土用镁铝交联剂改性后吸附能力显著增强,对有机染料和重金属有较强的吸附性能,去除率均在96%以上.由于膨润土的储量大、价格低,是一类很有发展前景的优质廉价吸附剂.     

艺术的色彩:美感中最大众化的形式

作为"一般美感中最大众化的形式",色彩就是思想,是一种感觉和体验,是人类在历史中沉淀下来的一种审美心理结构,文学作品若能成功地敷彩着色,就会张扬艺术的表现力,取得强烈的审美效果,但敷彩着色不能随便点染,更不能一味追求色彩刺激,它应充分调动各种艺术手段去进行审美意义上的精心调配.     

城市住宅区建筑外观色彩影响因素分析

随着经济社会的不断发展,城市建筑也在发生着日新月异的变化,城市小区住宅已不再是人们旧观念里的单一色调。在视觉艺术中色彩占有重要地位,住宅区建筑色彩的形式组合应该以满足大众审美的需求为准则。色彩设计作为建筑设计中的一个重要环节,也是建筑结构体系中的一部分。住宅区色彩规划要保证住宅区色彩的有序更新,新的色彩规划方案要在现状色彩基础上实现继承和更新。