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Shifting chemical defence or novel weapons? A review of defence traits in Agarophyton vermiculophyllum and other invasive seaweeds

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Marine Life Science & Technology 2022年第1期4卷 138-149页

作者： Gaoge Wang yifei ren Shasha Wang Minglei Hou Florian Weinberger Institute of Evolution and Marine Biodiversity College of Marine Life SciencesOcean University of ChinaQingdao266003China Marine Ecology Division GEOMAR Helmholtz-Zentrum für Ozeanforschung KielDüsternbrooker Weg 2024105KielGermany

Seaweed bioinvasions increasingly affect coastal environments around the world, which increases the need for predictive models and mitigation strategies. The biotic interactions between seaweed invaders and invaded communities are often considered a key determinant of invasion success and failure and we here revise the current evidence that the capacity of seaweed invaders to deter enemies in newly reached environments correlates with their invasion success. Particularly efficient chemical defences have been described for several of the more problematic seaweed invaders during the last decades. However, confirmed cases in which seaweed invaders confronted un-adapted enemies in newly gained environments with deterrents that were absent from these environments prior to the invasion (so-called “novel weapons”) are scarce, although an increasing number of invasive and non-invasive seaweeds are screened for defence compounds. More evidence exists that seaweeds may adapt defence intensities to changing pressure by biological enemies in newly invaded habitats. However, most of this evidence of shifting defence was gathered with only one particular model seaweed, the Asia-endemic red alga Agarophyton vermiculophyllum, which is particularly accessible for direct comparisons of native and non-native populations in common garden experiments. A. vermiculophyllum interacts with consumers, epibionts and bacterial pathogens and in most of these interactions, non-native populations have rather gained than lost defensive capacity relative to native conspecifics. The increases in the few examined cases were due to an increased production of broad-spectrum deterrents and the relative scarcity of specialized deterrents perhaps reflects the circumstance that seaweed consumers and epibionts are overwhelmingly generalists.

关键词： Agarophyton vermiculophyllum Bioinvasion Chemical defence Novel weapons hypothesis Shifting defence hypothesis

Vision implants:An electrical device will bring light to the blind

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Science in China(Series F) 2008年第1期51卷 101-110页

作者： NIU JinHai LIU yifei ren QiuShi ZHOU Yang ZHOU Ye NIU Shuai Department of Biomedical Engineering Institute for Laser Medicine and Bio-Photonics Shanghai Jiao Tong University Shanghai 200240 China

Cochlear implant has been successfully applied in clinic. Recent research indicates vision implants may be the potential way to restore sight for the blind. Here, principle and common structure of vision implants are introduced. Main vision approaches of retinal, optic nerve, and cortical prosthesis are reviewed. In our progress, electrical response at visual cortex is recorded, when penetrating electrodes stimulate rabbit optic nerve, vision implants based on optic nerve stimulator chip （ONSC） and Chipcon radio frequency （RF） chip are under developing. Despite several obstacles to overcome, promising results in animal and human experiments give scientists confidence that artificial vision implants will bring light to the blind in the near future.

关键词： vision implants electrical devices retinal optic nerve cortical prosthesis

Monodisperse silica nanoparticle suspension for developing latent blood fingermarks

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Forensic Sciences Research 2020年第1期5卷 38-46页

作者： Liang Meng yifei ren Zhilong Zhou Congxiang Li Chen Wang Shanlin Fu Department of Forensic Science Fujian Police CollegeFuzhouChina Centre for Forensic Science University of Technology SydneyUltimoAustralia College of Forensic Science People's Public Security University of ChinaBeijingChina Narcotics Brigade Xigang District BranchDalian Municipal Public Security BureauDalianChina

Traditional fingermark developing methods are unsuitable for developing and extracting latent blood fingermarks on dark surfaces at crime scene because of their ineffectiveness or tedious operation *** the present work,an effective and simple method was developed to serve this purpose using a suspension of monodisperse silica nanoparticles(MSNs).A suspension of 0.1 g/mL of MSNs was prepared by dispersing MSNs ultrasonically into an ethanol solution containing 1.0%Tween 80 and then uniformly sprayed onto the latent blood fingermarks on black plastic *** 20 s later,ethanol was sprayed to clean the superfluous developing *** the ethanol had evaporated,the latent fin-germarks became visible as a result of the photonic crystal effect produced by the MSNs that had adsorbed to the fingermark *** developed fingermarks were then photo-graphed using a digital camera under a white or monospectral light source,revealing fine ridges and clear fingermark *** novel,simple and effective method uses the pho-tonic crystal effect of MSNs to develop latent blood fingermarks without the need for sur-face functionalization and conjugation to dye or fluorescently label *** method can detect latent blood fingermarks that have been retained on a black plastic bag surface for at least 30 *** the simplicity and effectiveness of the developed method,MSNs may be a useful alternative material for use in developing latent *** research on the topic is warranted.

关键词： Forensic sciences monodisperse silica nanoparticles photonic crystal latent blood fingermarks fingermark development dark non-porous substrate

Room-temperature and atmospheric-pressure hydrogenation of lignin-derived phenol to KA oil by Pt/NiO@MOFs

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Nano Research 2024年第8期17卷 7053-7060页

作者： Fengbin Zheng Kun Wang yifei ren Bohua Wang Wenxing Chen Caoyu Yang Shengxian Shao Yinglong Wang Zhiyong Tang Guodong Li College of Chemical Engineering Qingdao University of Science and TechnologyQingdao 266042China CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100181China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049China

Hydrogenation of lignin-derived phenol to KA oil(the mixture of cyclohexanone(K)and cyclohexanol(A))is attractive yet challenging in the sustainable upgrading of biomass derivatives under mild *** supported metal catalysts have been widely studied but the active components on supports often exhibit low recyclability due to their instability under experimental *** we show fabricating ultrasmall Pt/NiO in the pores of chromium terephthalate MIL-101 as catalysts for hydrogenation of ***,Pt/NiO@MIL-101 achieves catalytic phenol hydrogenation to KA oils of tunable K/A ratios and good reusability under room temperature and atmospheric hydrogen pressure,superior to contrast Pt@MIL-101 and Pt/NiO *** excellent performance mainly originates from the effective adsorption and activation of phenol by coordinatively unsaturated Cr sites and H2 activation on ultrasmall Pt/NiO as well as its effective spillover to the adsorbed phenol over Cr sites for hydrogenation ***,such catalyst also displays the excellent performances for hydrogenation of phenol’s derivatives under mild conditions.

关键词： ultrasmall Pt/NiO MIL-101 phenol hydrogenation KA oil

A Gold Nanoparticle‑enhanced Surface Plasmon Resonance Aptasensor for the Detection of 2,4,6‑trinitrotoluene

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Journal of Forensic Science and Medicine 2016年第4期2卷 195-202页

作者： Junpeng Tan Bin Hao Chuo Wang yifei ren Hongxia Hao Ruiqin Yang Collaborative Innovation Center of Judicial Civilization China University of Political Science and LawMinistry of EducationBeijing 100088 Key Laboratory of Evidence Science China University of Political Science and LawMinistry of EducationBeijing 100088 People’s Public Security University of China Beijing 100038China

A gold nanoparticle‑enhanced surface plasmon resonance(SPR)aptasensor was developed for high‑specificity and high‑sensitivity detection of 2,4,6‑trinitrotoluene(TNT).Self‑assembly film‑forming technology was used to modify the gold surface of the sensor chip with 2,4,6‑trinitrophenyl glycine,a TNT analogue,using polyethylene glycol to which the thiol group and carboxyl group are ***‑gold nanoparticle complexes were formed through Au‑S *** detect TNT,the samples were incubated with the aptamer‑gold nanoparticle complexes,and the solution competition method was applied through the SPR *** results showed that the SPR aptasensor achieved fast,real‑time detection of *** gold nanoparticle‑enhanced SPR aptasensor is suitable for TNT detection in the field of public safety and environmental monitoring.

关键词： Aptamer surface plasmon resonance TNT

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多技能资源投入项目调度问题的建模与优化

同济大学学报（自然科学版） 2017年第11期45卷 1713-1721,1730页

作者：任逸飞陆志强同济大学机械与能源工程学院上海201804

以大型工业品移动装配线为实际背景,针对多技能人力资源投入成本问题,建立了以最小化资源投入成本为目标的数学模型.针对该模型,提出了基于全局作业影响的改进调度机制的遗传算法,设计最小费用最大流多技能资源分配算法解决资源分配问题... 详细信息

以大型工业品移动装配线为实际背景,针对多技能人力资源投入成本问题,建立了以最小化资源投入成本为目标的数学模型.针对该模型,提出了基于全局作业影响的改进调度机制的遗传算法,设计最小费用最大流多技能资源分配算法解决资源分配问题,通过基于全局资源水平影响的作业调度评估策略优化非关键作业的调度位置.最后利用改造的标准算例库PSPLIB进行数值试验,通过与CPLEX和文献算法对比,验证了本文算法的有效性.

关键词：多技能资源投入项目调度遗传算法

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求助悖论:疾病众筹的社会经济地位差异

社会 2022年第1期42卷 124-156页

作者：程诚任奕飞东南大学社会学系、医疗健康社会学研究所浙江大学社会学系

依托于移动互联网的疾病众筹平台改变了传统的疾病社会救助体系,疾病救助的发起方从政府和社会公益组织延展至亿万百姓,为社会底层获得紧急救助提供了新途径。本文利用我国某大型疾病众筹平台上1930个求助案例,探究了疾病众筹目标达成... 详细信息

依托于移动互联网的疾病众筹平台改变了传统的疾病社会救助体系,疾病救助的发起方从政府和社会公益组织延展至亿万百姓,为社会底层获得紧急救助提供了新途径。本文利用我国某大型疾病众筹平台上1930个求助案例,探究了疾病众筹目标达成的家庭社会经济地位差异。研究发现,家庭社会经济地位越高的病患,其众筹项目越可能被转发与捐赠、所筹善款总额和目标完成度也更高。中介效应分析表明,线下人际关系网络在上述关系中扮演着重要的中介角色,而以文案质量为代表的文化资本虽有助于众筹成效,但并非连接家庭社会经济地位与众筹效果的中介机制。进一步分析发现,当求助途径从基于熟人关系的微信圈子扩展至公共网络平台后,筹款效果的地位差异得以显著下降。

关键词：疾病众筹健康不平等社会资本文化资本移动互联网

飞驰的冰刀与停滞的帝国——冰嬉盛典与清代文化命运兴衰

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清华大学学报（哲学社会科学版） 2021年第6期36卷 1-11,205页

作者：任昳霏郭磊国家图书馆古籍馆北京100081 北京2022年冬奥会和冬残奥会组织委员会北京100041

由冰嬉盛典衰落—重启—消亡这一历史脉络,可以理解清王朝由盛而衰的停滞过程。嘉庆、道光两朝,乾隆时期创立的冰嬉盛典开始走向衰落。道光十九年,具有国家礼乐典礼性质的"阅冰技"一度终止。这从礼乐文化的角度体现出王朝国家衰落的加... 详细信息

由冰嬉盛典衰落—重启—消亡这一历史脉络,可以理解清王朝由盛而衰的停滞过程。嘉庆、道光两朝,乾隆时期创立的冰嬉盛典开始走向衰落。道光十九年,具有国家礼乐典礼性质的"阅冰技"一度终止。这从礼乐文化的角度体现出王朝国家衰落的加剧。光绪年间,清廷试图恢复具有典制意义的"冰鞋之戏",却因国力衰退、战争爆发、八旗生计等问题最终放弃。光绪朝"冰鞋之戏"的短暂恢复,是清廷为重现"王道之隆"做出的巨大努力。但这些偶一为之的"冰鞋"活动具有仓促性和临时性的特点,加之活动本身与慈禧太后的个人喜好有关,并没有形成制度上的国家典礼。这从文化仪式上反映出清王朝的再度衰落。最终,光绪朝的"冰鞋之戏"转变成仅具有娱乐性质的宫廷活动,并随着甲午中日战争的爆发彻底消失。这从一个微观的文化视角反映出停滞的帝国文化命运气数已尽,并在不断改革中逐渐走向终结。

关键词：冰雪文化冰嬉清代文运冰鞋

“主权意识”下的河西走廊——从《陕西舆图》看康熙年间的“边墙模式”

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清华大学学报（哲学社会科学版） 2023年第5期38卷 75-87,222,223页

作者：任昳霏张小军国家图书馆古籍馆北京100081 清华大学社会学系北京100084

《陕西舆图》是探讨“主权意识”视角下的河西走廊在康熙年间治理“边墙模式”的重要材料。清代康熙年间,传统王朝国家已经出现“主权意识”的萌芽,这一主权意识萌芽是传统王朝国家观念与“主权国家”观念的混合体。康熙年间对河西走廊... 详细信息

《陕西舆图》是探讨“主权意识”视角下的河西走廊在康熙年间治理“边墙模式”的重要材料。清代康熙年间,传统王朝国家已经出现“主权意识”的萌芽,这一主权意识萌芽是传统王朝国家观念与“主权国家”观念的混合体。康熙年间对河西走廊的治理,有一个从传统王朝向“主权国家”的观念转变,并从长城内外有别的边塞治理模式转向长城内外一统治理的边墙模式。康熙年间河西走廊的边墙模式表现在河西走廊通道的西扩、军事区划向行政区划的转变、边墙内外经济生产方式的互动融合、边墙内外生产方式互动对“主权意识”认同的影响等方面。

关键词：《陕西舆图》边墙模式主权意识内亚性中国性河西走廊