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Fitting into the Harsh Reality： Regulation of Irondeficiency Responses in Dicotyledonous Plants

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Molecular Plant 2012年第1期5卷 27-42页

作者： rumen Ivanov Tzvetina Brumbarova Petra Bauer Department of Biosciences-Plant Biology Saarland University Campus A2.4 D-66123 Saarbrucken Germany

Iron is an essential element for life on Earth and its shortage, or excess, in the living organism may lead to severe health disorders. Plants serve as the primary source of dietary iron and improving crop iron content is an important step towards a better public health. Our review focuses on the control of iron acquisition in dicotyledonous plants and monocots that apply a reduction-based strategy in order to mobilize and import iron from the rhizosphere. Achieving a balance between shortage and excess of iron requires a tight regulation of the activity of the iron uptake system. A number of studies, ranging from single gene characterization to systems biology analyses, have led to the rapid expansion of our knowledge on iron uptake in recent years. Here, we summarize the novel insights into the regulation of iron ac- quisition and internal mobilization from intracellular stores. We present a detailed view of the main known regulatory networks defined by the Arabidopsis regulators FIT and POPEYE （PYE）. Additionally, we analyze the root and leaf iron- responsive regulatory networks, revealing novel potential gene interactions and reliable iron-deficiency marker genes. We discuss perspectives and open questions with regard to iron sensing and post-translational regulation.

关键词： Iron uptake gene expression transcription factors post-transcriptional regulation.

Elasticity Forces in Tourism Under Covid-19:The Model of the Imaginary Mechanical Tourist Spring

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Journal of Tourism and Hospitality Management 2022年第1期10卷 1-9页

作者： rumen Draganov Kaloyan Haralampiev University of Library Studies and Information Technologies SofiaBulgaria Sofia University St.Kliment Ohridski SofiaBulgaria

The forces of contraction and expansion about the seasons in tourism behave like an imaginary mechanical tourist *** article discusses tourist activities in Bulgaria from 2009 to 2020,predictions concerning Covid-19,and tendencies expected in the last quarter of 2021 till the end of 2022 on data published by the National Statistics Institute and *** system’s dynamics observed before the pandemic crisis in tourism resembles the action of a mechanical spring that shrinks and extends,and we can empirically analyze the process of tourism *** study of this elasticity process of the system allows establishing a model with positive characteristics of the dynamics and further dealing with problems,better clarity in analysis and modeling of prognosis based on the potential of an imaginary mechanical spring concerning the possibility of the tourist destination.

关键词： elasticity mechanical tourist spring tourist potential tourist destination prognosis

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狼蛛家族来自荒野的人类新宠

环球人文地理 2014年第13期 78-87页

作者：王万菊沈海滨 rumen

红玫瑰狼蛛原产于南美洲的雨林和草原中,尽管它们不会织网,却善于奔跑着追杀猎物。对于人类,红玫瑰狼蛛个头大,看起来也比较凶猛,其实性情温和。哥伦比亚红脚蜘蛛非常胆小——稍有风吹草动就会高度紧张,把身子拗成僵直的"僵尸"状,用"装... 详细信息

红玫瑰狼蛛原产于南美洲的雨林和草原中,尽管它们不会织网,却善于奔跑着追杀猎物。对于人类,红玫瑰狼蛛个头大,看起来也比较凶猛,其实性情温和。哥伦比亚红脚蜘蛛非常胆小——稍有风吹草动就会高度紧张,把身子拗成僵直的"僵尸"状,用"装死"来躲过可能发生的危险。墨西哥红膝鸟蛛是狼蛛中的幸运儿,它一度濒临灭绝,但在20世纪70年代,墨西哥政府就努力对其加以保护,最终还把它列为《华盛顿公约》中的保护物种……

关键词：狼蛛属哥伦比亚爱好者红玫瑰

Innovative Perspectives to Apply Blockchain Model for the Saints Cyril and Methodius and Saint Sophronius of Vratsa Historical Sights in the Context of European Cultural Routes

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Journal of Tourism and Hospitality Management 2021年第1期9卷 53-63页

作者： rumen Draganov University of Library Studies and Information Technologies(ULSIT) SofiaBulgaria

The focus of the study is the implementation of blockchain as an emerging technology that can radically improveoperations when it comes to cultural heritage and in particular in the context of the European cultural routes, andcan create new opportunities for innovation. The development of blockchain technologies in the last few yearsinvolves examples of networks of various organizations that collaborate to create value and improvecompetitiveness. This type of network could provide together with local stakeholders and small- and medium- sizeenterprises (SMEs) on local markets additional assets as to the goods and services between the participants.

关键词： innovation tourism cultural routes blockchain

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增雨计划(PEP)的设计

沙漠与绿洲气象 2008年第1期2卷 55-58页

作者： rumen D.Bojkov 张克杰烔炀

如果依据对能够产生降水的云、雨和天气形势所做的全面气候学考查之后确认,正确地应用PEP计划提供的现有催化方法进行播云作业,能够使云和降水多次出现经得起检验的变化,那么最重要的一个步骤就是要精心制作一个设计方案,这对于在设计... 详细信息

如果依据对能够产生降水的云、雨和天气形势所做的全面气候学考查之后确认,正确地应用PEP计划提供的现有催化方法进行播云作业,能够使云和降水多次出现经得起检验的变化,那么最重要的一个步骤就是要精心制作一个设计方案,这对于在设计方案中系统地规划诸如合适的试验地点、季节、催化剂、播云指标和效果评价等方面的功能,是非常必要的。

关键词：设计增雨天气形势催化方法试验地点气候学 PEP 催化剂

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小剂量质子束治疗局限性脉络膜血管瘤

美国医学会眼科杂志（中文版） 2005年第3期17卷 184-184页

作者： Eric Frau Frank rumen George Noel Sabine Delacroix Jean-Louis Habrand Hervé Offret 李扬（译）

目的：评价质子束治疗并发性局限性脉络膜血管瘤的有效性及其安全性。方法：这是一项回顾性非随机研究。对象为法国Villejuif Gustave—Roussy研究所的连续17例患者，患有局限性脉络膜血管瘤合并浆液性视网膜脱离。每只患眼接受总计20... 详细信息

目的：评价质子束治疗并发性局限性脉络膜血管瘤的有效性及其安全性。方法：这是一项回顾性非随机研究。对象为法国Villejuif Gustave—Roussy研究所的连续17例患者，患有局限性脉络膜血管瘤合并浆液性视网膜脱离。每只患眼接受总计20钴当量（CGEs），每天15s5CGEs，共4天。有效检查包括初始和最终最佳矫正视力，裂隙灯检查，眼压，眼底检查，荧光造影以及吲哚青绿血管造影。肿瘤的厚度通过B超测量。

关键词：局限性脉络膜血管瘤质子束治疗小剂量浆液性视网膜脱离吲哚青绿血管造影裂隙灯检查非随机研究其安全性矫正视力