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UV-B辐射增强对长白山五种藓类植物生长的影响

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应用生态学报 2007年第9期18卷 2139-2143页

作者：吴玉环顾艳红刘鹏 zoltán Tuba 中国科学院沈阳应用生态研究所沈阳110016 浙江师范大学化学与生命科学学院浙江金华321004 Department of Botany and Plant Physiology Faculty of Agricultural and Environmental SciencesSzent István UniversityGodollo H-2103Hungary

对生长在中国长白山的5种藓类植物——垂枝藓、拟垂枝藓、塔藓、星塔藓和高山金发藓分别以辐射强度为0.2(自然光照,对照)、3.0(紫外线中等辐射强度)和6.0kJ.m-2.d-1(高剂量辐射强度)的UV-B照射40d后,测定其株高、生物量及叶绿素含量.结... 详细信息

对生长在中国长白山的5种藓类植物——垂枝藓、拟垂枝藓、塔藓、星塔藓和高山金发藓分别以辐射强度为0.2(自然光照,对照)、3.0(紫外线中等辐射强度)和6.0kJ.m-2.d-1(高剂量辐射强度)的UV-B照射40d后,测定其株高、生物量及叶绿素含量.结果表明:中等和高强度的UV-B辐射使拟垂枝藓和塔藓的株高、生物量和叶绿素含量分别下降了32.3%、62.4%、81.3%和21.4%、59.4%、62.8%,其相对生长速率均为负值;高剂量UV-B辐射处理下垂枝藓的生物量稍有上升,而高山金发藓地下部分的生物量增加1倍,但叶绿素含量变化不明显.高山金发藓和垂枝藓抵抗UV-B辐射的能力较强,拟垂枝藓和塔藓对UV-B辐射较敏感.

关键词：藓类 UV-B辐射生长叶绿素

negative weights in network time model

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Frontiers of Engineering Management 2022年第2期9卷 268-280页

作者： zoltan A.VATTAI Levente MALYUSZ Faculty of Architecture Budapest University of Technology and EconomicsMuegyetem rkp.3H-llll BudapestHungary

Time does not go backward.A negative duration,such as“time period”at first sight is difficult to *** network techniques(CPM/PERT/PDM)did not support negative parameters and/or loops(potentially necessitating recursive calculations)in the model because of the limited computing and data storage capabilities of early *** Roy and John Fondahl implicitly introduced negative weights into network techniques to represent activities with fixed or estimated durations(MPM/PDM).Subsequently,the introduction of negative lead and/or lag times by software developers(IBM)apparently overcome the limitation of not allowing negative time parameters in time *** to general digraph(Event on node)representation where activities are represented by pairs of nodes and pairwise relative time restrictions are represented by weighted arrows,we can release most restraints in constructing the graph structure(incorporating the dynamic model of the inner logic of time plan),and a surprisingly flexible and handy network model can be developed that provides all the advantages of the above-mentioned *** paper aims to review the theoretical possibilities and technical interpretations(and use)of negative weights in network time models and discuss approximately 20 types of time-based restrictions among the activities of construction *** focus on pure relative time models,without considering other restrictions(such as calendar data,time-cost trade-off,resource allocation or other constraints).

关键词： graph technique network technique construction management scheduling

Input database related uncertainty of Biome-BGCMuSo agroenvironmental model outputs

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International Journal of Digital Earth 2021年第11期14卷 1582-1601页

作者： nándor Fodor LászlóPásztor Brigitta Szabó Annamária Laborczi Klára Pokovai Dóra Hidy Roland Hollós Erzsébet Kristóf Anna Kis Laura Dobor AnikóKern Thomas Grünwald zoltán Barcza Centre for Agricultural Research Agricultural InstituteMartonvásárHungary Centre for Agricultural Research Institute for Soil SciencesBudapestHungary Department of Meteorology Eötvös Loránd UniversityBudapestHungary Faculty of Science-Excellence Center Eötvös Loránd UniversityMartonvásárHungary Faculty of Forestry and Wood Sciences Czech University of Life Sciences PraguePraha-SuchdolCzech Republic Department of Geophysics and Space Science Eötvös Loránd UniversityBudapestHungary Institute of Hydrology and Meteorology Technische Universität DresdenTharandtGermany

Gridded model assessments require at least one climatic and one soil database for carrying out the *** are several parallel soil and climate database development projects that provide sufficient,albeit considerably different,observation based input data for crop model based impact *** input database related uncertainty of the Biome-BGCMuSo agro-environmental model outputs was investigated using three and four different gridded climatic and soil databases,respectively covering an area of nearly 100.000 km2 with 1104 grid ***,temporal,climate and soil database selection related variances were calculated and compared for four model outputs obtained from 30-year-long *** choice of the input database introduced model output variability that was comparable to the variability the year-to-year change of the weather or the spatial heterogeneity of the soil *** database selection could be a decisive factor in carbon sequestration related studies as the soil carbon stock change estimates may either suggest that the simulated ecosystem is a carbon sink or to the contrary a carbon source on the long *** evaluation of the input database quality seems to be an inevitable and highly relevant step towards more realistic plant production and carbon balance simulations.

关键词： Input data gridded data soil parameters climatic parameters uncertainty propagation

Magnesite and talc origin in the sequence of geodynamic events in Veporicum, Inner Western Carpathians, Slovakia

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岩石学报 2004年第4期20卷 837-854页

作者： zoltán nMETH Walter PROCHASKA Martin RADVAnEC Martin KOV■IK Ján MADARAS Peter KOD■RA L'ubomír HRA■KO Geological Survey of Slovak Republic Jesenskeho 8 SK-040 01 Kosice Slovak Republic Department of Geological Sciences University of Leoben A-8700 Leoben Austria Geological Survey of Slovak Republic Marku ovsk cesta 1 SK-052 01 Spisska Nova Ves Slovak Republic Geological Survey of Slovak Republic Mlynsk dolina 1 SK-817 04 Bratislava Slovak Republic

This paper summarizes recent data about magnesite and talc genesis in Carboniferous host rocks of Western Carpathians (Slovakia) , which occur in two distinct belts in tectonic superunit Veporicum and its contact zone with Gemericum. The northern Sinec magnesite and talc belt (with main deposits Kokava, Sinec, Samo, Hnust'a-Mutnik) contains economic accummulation of magnesite and talc, while in the southern Ochtina belt ( main deposits in Dubrava massif-Dubrava, Mikova, Jedl'ovec; Lubenik, Ochtina, Kosice-Bankov, Banisko, Medvedia) the magnesite is *** magnesite genesis by successive replacement of Carboniferous calcite to dolomite and magnesite during metamorphic process Ml (northern belt 280-400℃; , southern belt 370-420℃: ; Radvanec & Prochaska, 2001; Kodera & Radvanec, 2002) , being supplied by Mg from Permoscythian evaporitic bittern brines, relates to Variscan post-collisional (post-VD) evolution. The extensional tectonics and the high heat flow facilitated the generation of a hydrothermal *** time-separated later metamorphic and sourcely different fluid flow event (M2; 1. c. ) produced talc. Tectonic, microtectonic, metamorphic and geochronological data relate the talc origin with the Alpine Upper Cretaceous (88-84 Ma; Maluski in Kovacik et al. , 1996) tectonothermal event AD2. This event, being the consequence of Alpine collisional ( AD1 ) crustal thickening and metamorphic core complex origin, meant regional extension and pervasive fluid flow of open system in crustal discontinuities. This process was prominent in the northern belt ( Sinec shear zone) located more closely to Veporic thermal dome, while towards its peripheral parts (southern Ochtina belt) the M2 metamorphic process and steatitization gradually *** from Sinec shear zone (being the prominent AD2 -AD3 structure of northern Sinec belt) , where the dolomite/magnesite lenses (replacement in M1) and their accompanying lithology were in AD1 sandwitched between more com

关键词： Magnesite and talc genesis Geodynamic evolution Shear zones Microstructures Fluid inclusions WesternCarpathians

Evaluation of microvascular reactivity with laser Doppler flowmetry in chronic kidney disease

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World Journal of nephrology 2013年第3期2卷 77-83页

作者： Levente Babos zoltán Járai János nemcsik Department of Family Medicine Semmelweis University1125 BudapestHungary Department of Cardiology St.Imre Teaching Hospital1115 BudapestHungary

Cardiovascular diseases are the major causes of mortality in patients with chronic kidney disease(CKD).The complex process of accelerated athero- and arteriosclerosis in CKD is associated with this phenomenon,where endothelial dysfunction(ED) is one of the initial steps. Hence, the early diagnosis of ED can potentially lead to early interventions which could result in a better outcome for these patients. Several methodologies have been developed for the diagnosis of ED. Laser Doppler flowmetry(LDF) enables us to study the microcirculation continuously in a non-invasive manner. In our review we would like to focus on different tests developed for LDF, like postocclusive reactive hyperaemia,local heating, iontophoresis, microdialysis or analysis of flowmotion. We would also like to summarize the available data in CKD with these methodologies to enlighten their perspectives in the clinical use on this patient population.

关键词： Chronic kidney disease Laser Doppler fowmetry Endothelial dysfunction Iontophoresis Postoc clusive reactive hyperaemia Local heating Microdialysis Flowmotion

Susceptibility of Wheat Varieties to Soil-Borne <i>Rhizoctonia</i>Infection

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American Journal of Plant Sciences 2013年第11期4卷 2240-2258页

作者： Gyula Oros zoltán naár Donát Magyar Department of Microbiology and Food Technology Eszterházy Károly College Eger Hungary national Institute of Environmental Health Budapest Hungary Plant Protection Institute Hungarian Academy of Sciences Bu-dapest Hungary

Response of 19 wheat varieties cultivated in Hungary varied within large limits to soil borne Rhizoctonia infection. The most frequent symptom, usually leading to damping off was the root neck necrosis. Four significant factors influencing the susceptibility of wheat comprised 71% of total variation but none of them was dominant. The inhibition of development of survivors in Rhizoctonia infested soil correlated with overall susceptibility of variety concerned. The varieties Emese, Kikelet and Palotás are proved to be less susceptible, but none of the varieties could be certified as tolerant. no relationships were revealed between pathogenicity of 26 Rhizoctonia strains studied and their taxonomic position or origin. The anamorph strains of Athelia, Ceratobasidium, Ceratorhiza and Waitea similar to Thanatephorus anamorphs selectively infected the wheat varieties, but the syndromatic pictures were undistinguishable with unarmed eye. R. solani was proved to be more aggressive against germinating wheat than R. cerealis. nine significant factors influencing the virulence of Rhizoctonia strains comprised 82% of total variation, and six of them influenced exclusively Thanatephorus anamorphs.

关键词： Wheat Rhizoctonia Tolerance Brown Patch Soil-Borne Virulence

Recent Developments in Monitoring of Complex Population Systems

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American Journal of Operations Research 2013年第1期3卷 167-180页

作者： zoltán Varga Manuel Gámez Inmaculada López Department of Mathematics University of Almería Almería Spain Institute of Mathematics and Informatics Szent István University Godollo Hungary

The paper is an update of two earlier review papers concerning the application of the methodology of mathematical systems theory to population ecology, a research line initiated two decades ago. At the beginning the research was concentrated on basic qualitative properties of ecological models, such as observability and controllability. Observability is closely related to the monitoring problem of ecosystems, while controllability concerns both sustainable harvesting of population systems and equilibrium control of such systems, which is a major concern of conservation biology. For population system, observability means that, e.g. from partial observation of the system (observing only certain indicator species), in principle the whole state process can be recovered. Recently, for different ecosystems, the so-called observer systems (or state estimators) have been constructed that enable us to effectively estimate the whole state process from the observation. This technique offers an efficient methodology for monitoring of complex ecosystems (including spatially and stage-structured population systems). In this way, from the observation of a few indicator species the state of the whole complex system can be monitored, in particular certain abiotic effects such as environmental contamination can be identified. In this review, with simple and transparent examples, three topics illustrate the recent developments in monitoring methodology of ecological systems: stock estimation of a fish population with reserve area;and observer construction for two vertically structured population systems (verticum-type systems): a four-level ecological chain and a stage-structured fishery model with reserve area.

关键词： Ecological Chain Fishery with Reserve Area Stable Coexistence Ecosystem Monitoring Verticum-Type System nonlinear System Observer Design

A nuclear import inhibitory peptide ameliorates the severity of cholecystokinin-induced acute pancreatitis

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World Journal of Gastroenterology 2005年第7期11卷 990-999页

作者： Tamás Letoha Csaba Somlai Tamáas Takács Annamária Szabolcs Katalin Jármay zoltán Rakonczay Jr Péter Hegyi Ilona Varga József Kaszaki István Krizbai Imre Boros Ern(?) Duda Erzsébet Kusz Botond Penke Department of Medical Chemistry First Department of Medicine Department of Genetics and Molecular Biology Institute of Surgical Research Institute of Biophysics Institute of Biochemistry

AIM: To assess the effect of our novel cell-permeable nuclear factor-kappaB (nF-κB) inhibitor peptide Pn50 in an experimental model of acute pancreatitis. Pn50 was produced by conjugating the cell-penetrating penetratin peptide with the nuclear localization signal of the nF-κB p50 ***: Pancreatitis was induced in male Wistar rats by administering 2×100 μg/kg body weight of cholecystokininoctapeptide (CCK) intraperitoneally (IP) at an interval of 1 h. Pn50-treated animals received 1 mg/kg of Pn50 IP 30 min before or after the CCK injections. The animals were sacrificed 4 h after the first injection of ***: All the examined laboratory (the pancreatic weight/body weight ratio, serum amylase activity,pancreatic levels of TnF-α and IL-6, degree of lipid peroxidation, reduced glutathione levels, nF-κB binding activity, pancreatic and lung myeloperoxidase activity) and morphological parameters of the disease were improved before and after treatment with the Pn50 *** to the histological findings, Pn50 protected the animals against acute pancreatitis by favoring the induction of apoptotic, as opposed to necrotic acinar cell death associated with severe acute ***: Our study implies that reversible inhibitors of stress-responsive transcription factors like nF-κB might be clinically useful for the suppression of the severity of acute pancreatitis.

关键词： Acute pancreatitis Peptide delivery Penetratin nF-κB inhibition

Determination of Reference Evapotranspiration Using Penman-Monteith Method in Case of Missing Wind Speed Data under Subhumid Climatic Condition in Hungary

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Atmospheric and Climate Sciences 2022年第2期12卷 235-245页

作者： zoltán Varga-Haszonits Éva Szalka Tamás Szakál Department of Water and Environmental Sciences Széchenyi István University of Gy&#337 r Mosonmagyaróvár Hungary

The reference evapotranspiration was calculated using Penman-Monteith method proposed. This method was evaluated on data measured by lysimeter in Szarvas experimental station in Hungary. The results of the two methods were in good agreement. However, this method requires an amount of data which is not available at all sites of meteorological measurement. Therefore it was necessary to investigate which elements influencing evapotranspiration are important and which elements are less important. With the help of investigation was indicated that radiation and vapor pressure deficit play important role in determination of reference evapotranspiration. Taking into account this there was two possibilities to calculate evapotranspiration. One of these is to use Penman-Monteith formula with constant wind speed as advised by Allen. Another one is to neglect wind speed data. Both methods were investigated and the method with constant wind speed was found better in a subhumid climatic condition of Hungary.

关键词： Reference Evapotranspiration Global Radiation Vapor Pressure Deficit Sub Humid Climate Irrigation Requirements of Crops