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Ecosystem management in transition in Central and Eastern Europe: the need for a vision

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Ecosystem Health and Sustainability 2016年第8期2卷 1-3页

作者： david vačkář András Báldi Global Change Research institute(CzechGlobe) The Czech Academy of SciencesBělidla 986/4a60300 BrnoCzech Republic MTA Centre for Ecological Research Institute of Ecology and BotanyHungarian Academy of SciencesH-2163 Alkotmány u.2-4VácrátótHungary Corresponding address:Department of Human Dimensions of Global Change Global Change Research Institute CASV Jirchářích 149/611000 Prague 1Czech Republic

it is well established that in current human-dominated world,environmental change is closely coupled with socio-economic factors,and this is reflected in conceptual frameworks of important policies(Díaz et al.2015).Humans are adversely affecting biodiversity and climate change on a planetary scale(Rockström et al.2009).Anthropogenic transformation of ecosystems has been driven by rapid social and economic changes,manifested by direct drivers such as land use change and climate change(Nelson et al.2006).Central and Eastern Europe(CEE)has been a rap-idly transitioning region in terms of economic growth and political *** the collapse of former Eastern Bloc and revolutions in several CEE countries after 1989,CEE countries have been undergoing political and economic transformation toward democracy and free *** accession to the European Union also brought in changes of political environment and ecosystem management possibilities and *** socioeconomic changes have influenced environmental condition and ecosystem management in this region,with changing pres-sures on biodiversity and ecosystem *** changes in Central and Eastern Europe have been closely linked especially to agricultural *** example,inorganic fertilizer use in several CEE countries dropped in a single year to 25%of its former level after the collapse of ***,in turn,had an enormous impact on farmland biodiversity(Stoate et al.2009).

关键词： Eastern Central farmland

数字孪生技术在家庭游戏娱乐产品中的应用研究

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包装工程 2023年第16期44卷 464-470,478页

作者：周屹郭梦园黄达翔桂林理工大学艺术学院广西桂林541006 桂林蓝港科技有限公司广西桂林541003

目的探索数字孪生技术在家庭游戏娱乐产品中的应用路径及其对用户沉浸式体验的影响。方法首先通过文献研究识别数字孪生技术与家庭游戏娱乐产品的代表性构面,并建立研究假设;其次以实证研究为基础,构建测量问卷,并通过验证性因子分析... 详细信息

目的探索数字孪生技术在家庭游戏娱乐产品中的应用路径及其对用户沉浸式体验的影响。方法首先通过文献研究识别数字孪生技术与家庭游戏娱乐产品的代表性构面,并建立研究假设;其次以实证研究为基础,构建测量问卷,并通过验证性因子分析检验问卷信效度;最后通过结构方程模型进行假设验证,以明晰数字孪生技术在家庭游戏娱乐产品中的应用路径及其对沉浸式体验的影响。结果构建了数字孪生技术在家庭游戏娱乐产品中的应用理论模型。结论数字孪生技术的相对优势不直接影响用户的感知享受,数字孪生技术的复杂集成无法直接影响家庭游戏娱乐产品的系统质量提升。技术兼容对于数字孪生技术在家庭游戏娱乐产品中的应用具有重要意义,后续研究及相关从业者应给予充分关注。

关键词：数字孪生技术家庭游戏娱乐产品应用路径结构方程模型

Studies on the Morphology of Natural Rubber/Polyacrylate interpenetrating Polymer Networks

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Chemical Research in Chinese Universities 1990年第1期6卷 85-89页

作者： Llao Kalrong (institute of Polymer Science, Zhangshan University, Guangzhou)Thomas C. Ward (Department of Chemistry, Virginia Polytechnic institute and State University, Blacksburg, va, USA)

The interpenetrating polymer network(iPN) systems have attracted a lot of attention because of their unique two-phase structure and properties. There have been many publications concerning the iPNs in which poly (isoprene) (PiP) or polyacrylates (PAC) is formed as one of the *** the present study, Four serles of natural rubber(NR)/PAC iPNs were prepared and their morphologies were investigated with dynamic mechanics analysis(DMA) and transmission electron microscopy (TEM).

关键词： interpenetrating polymer network Natural rubber Polyacrylate

Analysis of Protein Post-translational Modification Using Mass Spectrometry

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Analysis of Protein Post-translational Modification Using Ma...

2006年世界华人质谱学术研讨会暨中国质谱学会第八届全国学术交流会

作者： Li Jian-yong (Biochemistry, Virginia Tech, Blacksburg va 24061, USA)

A typical protein is born at translation, matures through post-translational processing events, such as partial proteolysis, alternates between active and resting states through the intervention of regulatory ligands or covalent modifications, ages through oxidation, deamid-ation, etc. , and expires when targeted for deg-

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成熟期提高油菜产量的方法(英文)

成熟期提高油菜产量的方法(英文)

Quantitative analysis of melt and fluid inclusions by LA-iCP-MS: Practical aspects and selected results

第十二届国际油菜大会

作者： Vlastimil Mikík david Beka Pavel Cihlá Jan vaák Czech University of Agriculture Department of Crop ProductionKamycká 129165 21 Prague 6-Suchdol Czech Republic

在捷克,10%1%的耕地(28万公顷)用来种植油菜。由于油菜籽成熟不一致,导致最佳收获时间无法确定而造成减产。调节油菜成熟可以选用干燥剂,促进剂和粘合剂。小区试验表明,促进剂Atonik Pro最有效。1.对照2.萘乙酸NAA3.生长素Atonik Pro4.... 详细信息

在捷克,10%1%的耕地(28万公顷)用来种植油菜。由于油菜籽成熟不一致,导致最佳收获时间无法确定而造成减产。调节油菜成熟可以选用干燥剂,促进剂和粘合剂。小区试验表明,促进剂Atonik Pro最有效。1.对照2.萘乙酸NAA3.生长素Atonik Pro4.抗裂角剂spodnam5.生长素Atonik Pro+抗角裂剂spodnam生长素Atonik Pro和抗角裂剂spodnam一起使用会使油菜显著增产,籽粒更饱满,损失减少,还能增加含油量。适量的使用Atonik Pro可以使油菜提前4周收获。

关键词： winter rapeseed stimulation maturing yield harvest losses

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岩石学报 2000年第4期16卷 715-715页

作者： Andreas Audétat. 2000. Department of Geological Sciences, Virginia Technology, Blacksburg, va 24061, U.S.A. Department of Geological Sciences Virginia Technology Blacksburg VA 24061 United States

Laser ablation iCP MS is an extremely sensitive (yet destructive) analytical technique that allows major and trace elements to be quantified in fluid and melt inclusions as small as 10 μm. individual inclusions are drilled out of their host mineral by using a laser beam (preferably 193 nm ArF Excimer laser), and the ablated material is continuously transported with an Ar/He gas mixture into the mass spectrometer (Günther and Heinrich, 1999). The resulting transient signals are integrated and compared with signals obtained from standard glasses. The LA iCP MS system at ETH Zürich (Switzerland) allows up to 30 major and trace elements to be measured simultaneously, with detection limits typically being in the order of 10-100 ppm for a medium salinity, 30 μm sized inclusion (Günther et al ., 1998; Audétat et al ., 2000a,b). Main source of analytical uncertainty is the process of internal standardization, for which the absolute concentration of one element has to be estimated by an independent method. in case of fluid inclusions this is done by calculating Na from the total salinity (NaCl equiv ), and correcting this value for other major cations present in solution. The internal standardization of melt inclusions is based on Al, which is determined either by microprobe analysis of re homogenized inclusions, or is estimated from LA iCP MS elemental ratios in conjunction with whole rock geochemical data. Examples of applications include: (i) geochemical evolution of hydrothermal fluids in ore deposits, (ii) metal fractionation between vapor and brine, and (iii) element partitioning between melt and aqueous fluid(s). LA iCP MS analysis of successive generations of fluid inclusions in quartz crystals from the Sn/W mineralized Mole Granite (Australia) demonstrates that ore precipitation was triggered by dilution of the magmatic fluid with meteoric water (Audétat et al ., 1998, 2000a). Partition coefficients determined on pairs of clearly cogenetic vapor and brine inclusions

关键词： iCP Practical aspects and selected results Quantitative analysis of melt and fluid inclusions by LA-iCP-MS

Using Genetics and Other Tools to Elucidate the Signal Transduction Pathway For Exopolysaccharide Regulation in Myxococcus xanthus,a Developmental Bacterium with Gliding Motility

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Using Genetics and Other Tools to Elucidate the Signal Trans...

Azithromycin in a triple therapy for *** eradication in active duodenal ulcer

第二届中国青年学者微生物遗传学学术研讨会

作者： Zhaomin Yang Department of Biological Science Virginia Tech, Blacksburg, va 24061

The developmental bacterium Myxococcus xanthus utilizes its gliding motility to aggregate during the formation of multicellular fruiting bodies. in order for the social (S) component of M xanthus gliding motility to function, two extracellular surface structures, namely type iV pili (Tfp) and exopolysaccharide (EPS), are required. Retraction of Tfp is proposed to power S motility and EPS from neighbouring cells is suggested to provide an anchor and trigger for Tfp retraction.

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World Journal of Gastroenterology 2002年第5期8卷 879-882页

作者： Vladimir T.ivashkin Tatiana L.Lapina Oksana Yu.Bondarenko Olga A. Sklanskaya Petr va.Grigoriev Yuri V.vasiliev Emilia P.Yakovenko Pavel V.Gulyaev valeri i.Fedchenko V.vasilenko Clinic of internal diseases gastroenterology and hepatology of the Moscow Sechenov Medical Academy119881 Pogodinskaya 5MoscowRussia Pathology Department of the Moscow Sechenov Medical Academy 119881Trubetskaya 8MoscowRussia Gastroenterological Center of the Health Ministry of Russia 105203N.Pervomayskaya ul.70MoscowRussia Central institution of Gastroenterology 111123Sh.Entusiastov 86MoscowRussia

AiM：To assess and compare the efficacy and safety of two triple regimes:A)metronidazole,amoxicillin and omeprazole,which is still widely used in Russia,andB)azithromycin amoxicillin and omeprazole in healing active duodenal ulcer and *** ***:100 patients with active duodenal ulcer were includid in the open,multicentre,randomized study with comparative *** were randomly assigned to one of the following one-week triple regimes:A)metronidazole500mg bid,amoxicillin1gbid and omeprazole 20mg bid(OAM,n=50)andB)azithromycin1g od for the first3days(total dose3g).amoxicillin 1g bid and first 3days(total dose3g).amoxicillin 1g bid and omeprazole20mg bid(OAA,n=50).Omeprazole 20mg od was given after the eradication course as a monotherapy for three weeks ,The control endoscopy was performed8 weeks after the entry,*** was determined in the entry of the study and four weeks after the cessation of treatment by means of histology and ***:97 patients completed the study according to the protocol(1patient of the OAM group did not come to the control endoscopy.2patients of the OAA group stopped the treatment because of mild allergic urticaria).Duodenal ulcers were healed in48patients of the OAM group(96%;Ci90.5-100%)and in 46patients of the OAAgroup(92%;Ci89.5-94.5%)(p=ns).*** infection was eradicated in 15out of 50patients with OAM(30%;Ci17-43%)and in36out of 50patients treated with OAA(72%,Ci59-85%)(PiП***:The triple therapy with omeprazole,amoxicillin and metronidazole failed to *** in the majorty of patients,which is an essential argument to withdraw this regimen out of the national recommendations,Macrolide with amoxicillin are preferable to achieve higher eradication ***(1g od for the first3days)can be considered as a successful component of the triple PPi-based regimen.

关键词：三联疗法阿奇霉素急性十二指肠溃疡幽门螺杆菌根除性治疗

舒适的羊毛──纤维吸湿性对服装动态舒适性的影响

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西北纺织工学院学报 1994年第3期8卷 222-228页

作者：李毅 Holc.,va 澳大利亚联邦科学与工业研究院羊毛技术研究所悉尼研究室

在不同环境条件（常温或高温，低温或高温）下对用羊毛、涤纶、腈纶等纤维制作的服装作实际穿着试验表明：不同纤维材料服装的穿着舒适性有相当大的差别．这些差别与纤维的吸湿性有关．羊毛纤维服装有较好的动态舒适性．

关键词：羊毛纤维服装动态舒适性吸湿