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Soil Monitoring System as a Basic Tool for Protection of Soils and Sustainable Land Use in Slovakia

Journal of Agricultural Science and Technology(A) 2014年第6期4卷 504-513页

作者： jozef Kobza Katarma Gasova Department of Geography Geology and Landscape Ecology Faculty of Natural Sciences University of Matej Bel NationalAgricultural and Food Centre Soil Science and Conservation Research Institute Bansk~ Bystrica 97401 Slovakia Department of Chemistry Faculty of Natural Sciences University of Matej Bel Banska Bystrica 97401 Slovakia

The purpose of soil monitoring system in Slovakia is better to protect the soils with regard to sustainable land use. The main objective is the observation of soil properties concerning the main threats to soil： soil contamination, salinisation and sodification, decline in soil organic matter （SOM）, soil compaction and erosion. Soil monitoring system in Slovakia is consistently running since 1993. Its importance consists of providing the information on changing spatial and temporal variations of soil parameters as well as the evolution of soil quality in topsoil and subsoil. Soil monitoring network in Slovakia is constructed using ecological principles, taking into account all main soil types and subtypes, SOM, climatic regions, emission regions, polluted and non-polluted regions as well as various land use. The results of soil monitoring of 318 sites on agricultural land in Slovakia have been presented. Soil properties are evaluated according to the main threats to soil relating to European Commission recommendation for European soil monitoring performance as follows： soil contamination, soil salinization and sodification, decline in SOM, soil compaction and erosion. The most significant change has been determined in physical properties of soils. The physical degradation was especially manifested in compacted and the eroded soils. About 50% of agricultural land is potentially affected by soil erosion in Slovakia. In addition, decline in SOM and available nutrients indicate the serious facts on evaluation and extension of soil degradation processes during the last period in Slovakia. Obtained measured data and required outputs are reported to Joint Research Centre （JRC） in lspra （Italy） and European Environmental Agency （EEA） in Copenhagen （Denmark）. Finally, soil monitoring system thus becomes a basic tool for protection of soils and sustainable land use as well as for the creation of legislatives not only in Slovakia, but in EU, too.

关键词： Soil monitoring threats to soil soil degradation processes Slovakia.

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Investment Strategy of the Temasek Holdings

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Chinese Business Review 2012年第7期11卷 607-619页

作者： Martin Vozar jozef Komomik Faculty of Management Comenius University in Bratislava Slovak Republic

Sovereign Wealth Funds （SWFs） are generally known as investment funds owned by national governments and financed by the country＇s foreign currency reserves （dollar, euro, and yen）, often through their central banks or via direct investments. The study investigated the investment strategy of the Temasek Holdings as one of the most successful SWFs which is owned by the government of Singapore. Temasek Holdings was founded in 1974 to manage part of the government＇s revenues. Present turbulent times create a big pressure on healthy investment strategy of the SWFs. But total shareholder return for Temasek since its inception in 1974 has been a healthy 17% compounded annually. The main objective of the paper is to focus on the role of the Temasek Holdings as a company managed on commercial principles with an aim to achieve long-term sustainable returns. The study also analyzed Temasek Holdings＇investment strategy. The study provides answers to questions like： why Temasek is of the most successful SWFs and what is the fund risk management？ Another part of the paper compares investment strategy of the Temasek Holdings with other SWFs. The study has been conducted mainly on the basis of literature survey, secondary information and with using various web sites and research paper. The analysis has been also based on disclosures appearing in the Temasek annual reports over the period from 2008 to 2010.

关键词： sovereign wealth funds (SWFs) Temasek strategy investment portfolio asset under management

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Effect of external electric field upon charge distribution, energy and dipole moment of selected monosaccharide molecules

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Natural Science 2012年第5期4卷 276-285页

作者： jozef Mazurkiewicz Piotr Tomasik Cracow College of the Health Promotion Cracow Poland Department of Chemistry and Physics University of Agriculture Cracow Poland

External electric field of 0.001, 0.01 and 0.05 a.u. changes distribution of the electron density in α- and β-D-glucose, α- and β-D-galactose, α- and β-fructopyranoses and α- and β-fructofuranoses, α- and β-D-ribofuranoses and α and β-D-xylo- furanoses. Hyper-Chem 8.0 software was used together with the AM1 method for optimization of the conformation of the molecules of monosaccharides under study. Then polarizability, charge distribution, potential and dipole moment for molecules placed in the external electric field of 0.000, 0.001, 0.01 and 0.05 a.u. were calculated involving DFT 3-21G method. Application of the external field induced polarizability of electrons, atoms and dipoles, the latter resulting in eventual reorientation of the molecules along the applied field of the molecules and the electron density redistribution at particular atoms. Increase in the field strength generated mostly irregular changes of the electron densities at particular atoms of the molecules as well as polarizabilities. Energy of these molecules and their dipole moments also varied with the strength of the field applied. Results of computations imply that saccharides present in the living organisms may participate in the response of the living organisms to the external electric field affecting metabolism of the molecules in the body fluids by fitting molecules to the enzymes. Structural changes of saccharide components of the membranes can influence the membrane permeability.

关键词： D-Fructose Dipole Moments D-Galactose D-Glucose Polarizabilty D-Ribose D-Xylose

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Aspects of Railway Capacity and Occupation Time Estimation

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Journal of Civil Engineering and Architecture 2014年第3期8卷 322-331页

作者： jozef Gasparik Vladislav Zitricky Faculty of Operation and Economics of Transport and Communication University of Zilina Zilina O10 26 Slovak Republic

The priority of the EU transport policy in railway sector is to open up the railway market. The objective is to provide railway undertakings with access to the railway network on equal terms. The main problem is determining the infrastructure capacity. A variety of methodologies are used across Europe for the capacity estimation of railway infrastructure. This diversity has forced railway infrastructure managers to seek a new, common methodology. The UIC methodology is an easy way to calculate the capacity consumption. However, there the possibility to expound this methodology in different ways, which can result in different capacity consumptions. There isan advantage to improve this methodology and to set a clear and unified method of occupation time estimation. The fundamental improvement to UIC methodology is the definition of the occupation time by the trains. This paper gives a description of Slovak and UIC methodologies as a basis for a newly developed approach. The new way of estimation of the capacity consumption （occupation time） is based on a graphic approach. The new methodology concerns the estimation of the infrastructure occupation time and is a conceptual framework developed by the authors for an easier evaluation of occupation time in train traffic diagrams. The new methodology makes the UIC methodology more usable and enables more exact results to be obtained from infrastructure capacity examination.

关键词： Methodology for capacity estimation train traffic diagram occupation square occupation rate buffer time.

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缺失氨肽酶N的变铅青链霉菌的构建和鉴定

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微生物学通报 2003年第1期30卷 14-19页

作者：洪斌李元 jozef Anné 中国医学科学院医药生物技术研究所北京100050 LaboratoryofBacteriology RegaInstitute

用PCR方法扩增变铅青链霉菌 (Streptomyceslividans)TK2 4氨肽酶N基因 ,体外插入卡那霉素抗性基因进行失活 ,然后利用不含链霉菌复制起点的重组质粒 pPEPN KAN进行同源重组 ,获得了氨肽酶N缺失的菌株PEPN- 。突变株的胞外氨肽酶N活性与... 详细信息

用PCR方法扩增变铅青链霉菌 (Streptomyceslividans)TK2 4氨肽酶N基因 ,体外插入卡那霉素抗性基因进行失活 ,然后利用不含链霉菌复制起点的重组质粒 pPEPN KAN进行同源重组 ,获得了氨肽酶N缺失的菌株PEPN- 。突变株的胞外氨肽酶N活性与原株基本相同 ,而胞内氨肽酶N的活性明显低于原株 ,为原株的 4 2 5± 5 7%。

关键词：变铅青链霉菌氨肽酶N 缺失菌株

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Interpenetrated Magnesium-Tricalcium Phosphate Composite:Manufacture,Characterization and In Vitro Degradation Test

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Acta Metallurgica Sinica(English Letters) 2017年第4期30卷 319-325页

作者： Mariano Casas-Luna Serhii Tkachenko Miroslava Horynova Lenka Klakurkova Pavel Gejdos Sebastian Diaz-de-la-Torre Ladislav Celko jozef Kaiser Edgar B. Montufar CEITEC-Central European Institute of Technology Brno University of TechnologyPurkyfnova 656/123612 00 BmoCzech Republic CIITEC-Centro de Investigacion e Innovacion Tecnologica Instituto Politocnico NacionalCerrada de CECATI02250 Mexico CityMexico

Magnesium and calcium phosphates composites are promising biomaterials to create biodegradable load-bearing implants for bone regeneration. The present investigation is focused on the design of an interpenetrated magnesium- tricalcium phosphate （Mg-TCP） composite and its evaluation under immersion test. In the study, TCP porous preforms were fabricated by robocasting to have a prefect control of porosity and pore size and later infiltrated with pure commercial Mg through current-assisted metal infiltration （CAMI） technique. The microstructure, composition, distribution of phases and degradation of the composite under physiological simulated conditions were analysed by scanning electron microscopy, elemental chemical analysis and X-ray diffraction. The results revealed that robocast TCP preforms were full infiltrated by magnesium through CAMI, even small pores below 2 μm have been filled with Mg, giving to the composite a good interpenetration. The degradation rate of the Mg-TCP composite displays lower value compared to the one of pure Mg during the first 24 h of immersion test.

关键词： Calcium phosphate Magnesium Liquid metal infiltration Spark plasma sintering Corrosion

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Effective Utilization of Coal Fly Ash in Building Material Production

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Journal of Chemistry and Chemical Engineering 2011年第8期5卷 724-728页

作者： jozef Junak Nadezda Stevulova Civil Engineering Faculty Institute of Building and Environmental Engineering Technical University of Ko~ice Vysoko3kolsk6 404200 Kokice Slovakia

This paper is aimed at verifying utilization possibilities of alkaline modified coal fly ash as cement replacement in the concrete. The influence of alkaline activated coal fly ash originating from Slovakian power plant in Novsky （Si/Al = 3,1） as a partial cement replacement in concrete on compressive strength of hardened composites after 28 and 90 days was investigated. Alkaline activation of coal fly ash was realized in an autoclave at 130 ℃ and pressure of 160 kPa during 5 hours and in a reactor under normal conditions （equal temperature during 36 hours） at solid/liquid ratio of 0.5. Coal fly ash/cement mixtures were prepared with 25 % cement replacement by starting and modified coal fly ash and given in forms. Compressive strengths of composites after 28 and 90 days of hardening were compared to referential composite without coal fly ash and evaluated according to the standard of STN EN 450 by the value of relative strength KR （compressive strength of coal fly ash/cement composite to compressive strength of comparative concrete）. The final compressive strengths of hardened composites based on alkaline activated coal fly ash reached values in the range of 6 up to 50 MPa. In the set of experimental composites based on alkaline activated coal fly ashes, the highest value of relative strength after 28- and 90- days of hardening reached composite with cement replacement by coal fly ash zeolitized in autoclave （105% of compressive strength of referential sample）, what is connected with formation of zeolitic phases on surface of coal fly ash particles. The achieved results confirm that alkaline activation of coal fly ash in an autoclave under observed conditions can be successfully used as a partial cement replacement in concrete of C20/25 and C25/30 in accordance with requirements of standards （STN EN 450 and STN EN 206）.

关键词： coal fly ash chemical activation concrete compressive strength zeolite

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The Transmissive Function of the Fine Arts:Some Observations on the Power and Function of Art in the Past and in the Age of Multimedia

The Transmissive Function of the Fine Arts:Some Observations...

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文明的和谐与共同繁荣：文明的普遍价值和发展趋向——北京论坛（2008）

作者： jozef Grabski IRSA

Since the stone age the visual transmission of what we today call works of art has served social,religious,political and,last but not least,aesthetic *** word"artist"has always resonated with special *** figure,equally responsible for the engraved bones,or cave paintings of the pre-historical period,has served society in antique,medieval and modern

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Technological Progress in Radiation Therapy for Brain Tumors

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Journal of Cancer Therapy 2014年第1期5卷 38-43页

作者： Frederik jozef Vernimmen Kathy Rock Department of Radiation Oncology Cork University Hospital Cork Ireland

To achieve a good therapeutic ratio the radiation dose to the tumor should be as high as possible with the lowest possible dose to the surrounding normal tissue. This is especially the case for brain tumors. Technological advancements in diagnostic imaging, dose calculations, and radiation delivery systems, combined with a better understanding of the pathophysiology of brain tumors have led to improvements in the therapeutic results. The widely used technology of delivering 3-D conformal therapy with photon beams (gamma rays) produced by Linear Accelerators has progressed into the use of Intensity modulated radiation therapy (IMRT). Particle beams have been used for several decades for radiotherapy because of their favorable depth dose characteristics. The introduction of clinically dedicated proton beam therapy facilities has improved the access for cancer patients to this treatment. Proton therapy is of particular interest for pediatric malignancies. These technical improvements are further enhanced by the evolution in tumor physiology imaging which allows for improved delineation of the tumor. This in turn opens the potential to adjust the radiation dose to maximize the radiobiological effects. The advances in both imaging and radiation therapy delivery will be discussed.

关键词： Brain Tumors Radiotherapy Proton Therapy Functional Imaging

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人肿瘤坏死因子β(hTNFβ)在变铅青链霉菌中的表达研究(英文)

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Acta Genetica Sinica 2003年第3期30卷 209-214页

作者：洪斌李元 Godelieve Van Mellaert jozef Anné 中国医学科学院中国协和医科大学医药生物技术研究所北京100050 Laboratory of Bacteriology Rega InstituteKatholieke Universiteit LeuvenBelgium

以变铅青链霉菌为宿主研究了人TNFβ(hTNFβ)的异源表达。应用链霉菌S .venezuelaeCBS76 2 70分泌产生的枯草杆菌蛋白酶抑制剂vsi基因的启动子、表达调控序列和分泌信号肽序列 ,分别对hTNFβ进行了直接分泌表达、分泌融合表达和胞内表... 详细信息

以变铅青链霉菌为宿主研究了人TNFβ(hTNFβ)的异源表达。应用链霉菌S .venezuelaeCBS76 2 70分泌产生的枯草杆菌蛋白酶抑制剂vsi基因的启动子、表达调控序列和分泌信号肽序列 ,分别对hTNFβ进行了直接分泌表达、分泌融合表达和胞内表达。将hTNFβ的cDNA分别直接融合于vsi信号肽序列下游 2个氨基酸处、vsi全长基因之后以及vsi起始密码子ATG的下游 ,获得的表达盒分别克隆至链霉菌高拷贝质粒pIJ486 ,转化StreptomyceslividansTK2 4,获得了重组菌株S .lividans(pIJ486 hTNFβ)、S .lividans(pIJ486 vsi hTNFβ)和S .lividans(pIVPA hTNFβ)。分别对不同的重组菌株进行摇瓶培养 ,对其培养的上清液和细胞裂解液进行SDS PAGE和Western杂交 ,结果表明 :hTNFβ在重组菌株中均获得了表达 ,且直接分泌产物和胞内表达产物均具有生物学活性。hTNFβ直接分泌表达产物的分子量约为 16kDa,NB培养基中培养 48h时表达水平约为 0 7mg L。胞内表达产物分子量与对照重组hTNFβ一致(18 7kDa) ,但随培养时间的延长逐步降解为 16kDa ,NB培养基中培养 48h时的表达水平 (2 5 1mg L)远高于其直接分泌表达水平。

关键词：人肿瘤坏死因子β hTNFβ 变铅青链霉菌异源基因表达

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