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西北干旱区农田春小麦蒸散量的空间插值方法

农业机械学报 2014年第11期45卷 172-179页

作者：王春梅孟庆岩占玉林刘苗王靓 tamas jancso 中国科学院遥感与数字地球研究所北京100101 中国科学院大学北京100049 西匈牙利大学地理信息科学学院

综合运用传统统计分析方法和地质统计分析方法，研究了西北旱区春小麦蒸散量在不同生育阶段的时空变异特征，并分析了试验区表层土壤储水量和叶面积指数对春小麦蒸散量的影响关系，通过分析比较，筛选表层土壤储水量为协同因子，并将其... 详细信息

综合运用传统统计分析方法和地质统计分析方法，研究了西北旱区春小麦蒸散量在不同生育阶段的时空变异特征，并分析了试验区表层土壤储水量和叶面积指数对春小麦蒸散量的影响关系，通过分析比较，筛选表层土壤储水量为协同因子，并将其应用到试验区春小麦蒸散量的空间插值研究中。研究结果表明：在所研究的条件下，即使外观较为均匀、面积相对较小的农田，春小麦蒸散量仍具有较高的空间变异（变异系数范围0．328～0．495）；当降雨入渗深度小于20cm时，表层土壤储水量（0—20cm）是影响研究区春小麦蒸散量变异的主要因子，春小麦不同生育期累积蒸散量与表层土壤储水量变化的相关系数在0．8—0．9之间，远大于春小麦累积蒸散量与叶面积指数的相关系数；基于表层土壤储水量的蒸散量协同克里金空间插值分析与地面实测结果相比，仅42个蒸散量地面采样数据即可保证研究区春小麦蒸散量估计精度高于90％。

关键词：小麦蒸散表层土壤储水量插值地统计

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Short RNAs in Tomato

Journal of Integrative Plant Biology 2010年第4期52卷 388-392页

作者： tamas Dalmay School of Biological Sciences University of East Anglia

Short RNAs are 20-24 nucleotide long non-coding RNA molecules generated by one of the Dicer-like enzymes. They recognize specific RNA or DNA sequences and guide the RNA silencing complex to their targets leading to post-transcriptional or transcriptional gene silencing of the target. Most of our knowledge about short RNAs comes from studying the model species Arabidopsis. Recently, however, several reports emerged about short RNAs in tomato, which is a model plant for fleshy fruit development and ripening. Tomato short RNAs have been sequenced and a database was established. Novel non-conserved microRNAs were found that showed differential expression between fruit and other tissues, even during fruit development, suggesting that they may play a role in fruit formation. Several target genes were predicted and validated for both conserved and non-conserved miRNAs and some of these targets are key players in fruit ripening, such as Colourless non-ripening. The present study reviews the current state of tomato short RNAs research and suggests future directions.

关键词： Short RNAs in Tomato DCL RNA siRNAs

Global optimum of microstructure parameters in the CMWP line-profile-analysis method by combining Marquardt-Levenberg and Monte-Carlo procedures

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Journal of Materials Science & Technology 2019年第7期35卷 1508-1514页

作者： Gabor Ribarik Bertalan Joni tamas Ungar Department of Materials Physics Edtvos University BudapestPO Box 32H-15J8Hungary School of Materials The University of ManchesterM139PLUK

Line profile analysis of X-ray and neutron diffraction patterns is a powerful tool for determining the microstructure of crystalline materials. The Convolutional-Multiple-Whole-Profile (CMWP) procedure is based on physical profile functions for dislocations, domain size, stacking faults and twin boundaries. Order dependence, strain anisotropy, hkl dependent broadening of planar defects and peak shape are used to separate the effect of different lattice defect types. The Marquardt-Levenberg (ML) numerical optimiza-tion procedure has been used successfully to determine crystal defect types and densities. However, in more complex cases like hexagonal materials or multiple phases the ML procedure alone reveals uncer-tainties. In a new approach the ML and a Monte-Carlo statistical method are combined in an alternative manner. The new CMWP procedure eliminates uncertainties and provides globally optimized parameters.

关键词： X-ray line profile analysis Neutron line profile analysis CMWP Global optimum Dislocation densities Grain size Planar defects Monte-Carlo method

Coupling the 4M crop model with national geo-databases for assessing the effects of climate change on agro-ecological characteristics of Hungary

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International Journal of Digital Earth 2014年第5期7卷 391-410页

作者： Nandor Fodor Laszlo Pasztor tamas Nemeth Institute for Soil Science and Agricultural Chemistry Centre for Agricultural ResearchHungarian Academy of SciencesBudapestHungary Hungarian Academy of Sciences BudapestHungary

The 4M crop model was used to investigate the prospective effects of climate change on the agro-ecological characteristics of *** model was coupled with a detailed meteorological database and spatial soil information systems covering the whole territory of ***-specific model parameters were determined by inverse *** meteorological data were produced from the present meteorological data by combining a climate change scenario and a stochastic weather *** the available and the generated data,the present and the prospective agro-ecological characteristics of Hungary were *** to the simulation results,average yields will decrease considerably(-30%)due to climate *** rate of nitrate leaching will prospectively decrease as *** fluctuations of both the yields and the annual nitrate leaching rates will most likely increase approaching the end of the twenty-first *** the basis of the simulation results,the role of autumn crops is likely to become more significant in *** achieved results can be generalized for more extended regions based on the concept of spatial(geographical)analogy.

关键词： agro-ecological features crop modeling climate change effects spatial soil information systems

Omics Approaches to Identify PotentialBiomarkers of Inflammatory Diseases in the FocalAdhesion Complex

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Genomics, Proteomics & Bioinformatics 2017年第2期15卷 101-109页

作者： Johanne Brooks Alastair Watson tamas Korcsmaros Gut Health and Food Safety Institute Strategic Programme Institute of Food Research Norwich Research Park Norwich NR4 7UA United Kingdom Norwich Medical School University of East Anglia Norwich Research Park Norwich NR4 7T J United Kingdom Gastroenterology Department Norfolk and Norwich University Hospital Norwich NR4 7UY United Kingdom Earlham Institute Norwich Research Park Norwich NR4 7UZ United Kingdom

Inflammatory diseases such as inflammatory bowel disease(IBD) require recurrent invasive tests, including blood tests, radiology, and endoscopic evaluation both to diagnose and assess disease activity, and to determine optimal therapeutic strategies. Simple ‘bedside’ biomarkers could be used in all phases of patient management to avoid unnecessary investigation and guide further management. The focal adhesion complex(FAC) has been implicated in the pathogenesis of multiple inflammatory diseases, including IBD, rheumatoid arthritis, and multiple sclerosis. Utilizing omics technologies has proven to be an efficient approach to identify biomarkers from within the FAC in the field of cancer medicine. Predictive biomarkers are paving the way for the success of precision medicine for cancer patients, but inflammatory diseases have lagged behind in this respect. This review explores the current status of biomarker prediction for inflammatory diseases from within the FAC using omics technologies and highlights the benefits of future potential biomarker identification approaches.

关键词： Focal adhesion complex Biomarkers Inflammation Omics Systems biology

Spatial cage solitons——taming light bullets

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Photonics Research 2022年第1期10卷 148-154页

作者： CHAO MEI IHAR BABUSHKIN tamas NAGY GüNTER STEINMEYER Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy 12489 BerlinGermany School of Computer and Communication Engineering University of Science and Technology Beijing(USTB)Beijing 100083China Institute of Quantum Optics Leibniz University Hannover30167 HannoverGermany Institut für Physik Humboldt Universitat zu Berlin12489 BerlinGermany

Multimode nonlinear optics is used to overcome a long-standing limitation of fiber optics,tightly phase locking several spatial modes and enabling the coherent transport of a wave packet through a multimode fiber.A similar problem is encountered in the temporal compression of multimillijoule pulses to few-cycle duration in hollow gas-filled *** the fiber length to up to 6 m,hollow fibers have recently reached 1 TW of peak *** the remarkable utility of the hollow fiber compressor and its widespread application,however,no analytical model exists to enable insight into the scaling behavior of maximum compressibility and peak *** we extend a recently introduced formalism for describing mode locking to the analog scenario of locking spatial fiber modes *** formalism unveils the coexistence of two soliton branches for anomalous modal dispersion and indicates the formation of stable spatiotemporal light bullets that would be unstable in free space,similar to the temporal cage solitons in mode-locking *** model enables deeper understanding of the physical processes behind the formation of such light bullets and predicts the existence of multimode solitons in a much wider range of fiber types than previously considered possible.

关键词： locking solitons optics

Changing human-environment interactions in medium mountains:the Apuseni Mts(Romania)as a case study

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Journal of Mountain Science 2016年第9期13卷 1675-1687页

作者： TELBISZ tamas IMECS Zoltan MARl Laszlo BOTTLIK Zsolt Department of Physical Geography Eotvos University1117BudapestPazrnany Peter setany 1/CBudapestHungary Department of Geography in Hungarian Babes-Bolyai University400006Cluj-NapocaStr.Clinicilor 5-7Romania Department of Regional Science Eotoos University1117BudapestPazmany Peter setany 1/CBudapestHungary

The study of human-environment relationships in mountain areas is important for both theoretical and practical reasons, as many mountain areas suffer similar problems, such as depopulation, unemployment and natural hazards. Medium mountains constitute a special case within mountains, because they are more populated but less attractive as tourist destinations than high mountains. In this context, the Apuseni Mts （Romania） are considered as a ease study. In this paper, we apply GIS-based, quantitative methods to characterize the strength and dynamics of human-environment interactions, taking into consideration some environmental factors （elevation, relative height, slope, river distance, lithology, land cover, natural attractions） as well as historical population and recent tourism data. We found that population density has strong （r2〉0.8） relationships with all relief factors （elevation, relative height, slope, river distance）, and that best-fit functions are nonlinear. We outlined the varying demographic scenarios by elevation zones and interpreted the historically switching sign of population change versus elevation relationship. We demonstrated that lithology also has an impact on the spatial distribution of population, although it is not independent from the relief effect. The land cover of the mainly cultural landscape is very strongly correlated with relief parameters （especially slope）, which suggests good adaptation. We pointed out the dominance of karst objects in the natural tourism potential of the Apuseni Mts and also explored further components of real tourism （spas, heritage, towns）. Finally, we concluded that the environmental settings investigated do in fact constrain the spatial framework of society, but soeio-economic changes in history can be explained from the side of society, which conforms to the theory of cultural possibilism.

关键词： Human-environment relations ApuseniMountains Geographical information system (GIS) Possibilism Tourism Karst

On Modifications of Continuous and Discrete Maximum Principles for Reaction-Diffusion Problems

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Advances in Applied Mathematics and Mechanics 2011年第1期3卷 109-120页

作者： Istvan Farago Sergey Korotov tamas Szabo Department of Applied Analysis and Computational Mathematics Eotvos Lorand UniversityH–1117BudapestPazmany P.s.1/c.Hungary BCAM-Basque Center for Applied Mathematics Bizkaia Technology ParkBuilding 500E–48160 DerioBasque CountrySpain

In this work,we present and discuss some modifications,in the form of two-sided estimation(and also for arbitrary source functions instead of usual sign-conditions),of continuous and discrete maximum principles for th... 详细信息

关键词： Reaction-diffusion problem maximum principle discrete maximum principle monotone matrix two-sided a priori estimation code validification

Gemcitabine-induced haemolytic uremic syndrome,although infrequent,can it be prevented:A case report and review of literature

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World Journal of Clinical Cases 2018年第12期6卷 531-537页

作者： Esther U Cidon Pilar A Martinez tamas Hickish Department of Medical Oncology Royal Bournemouth and Christchurch Hospital NHS Foundation Trust Department of Oncology Clinical University HospitalValladolid Department of Medical Oncology Royal Bournemouth and Christchurch Hospital NHS Foundation Trust and Bournemouth University

Gemcitabine is an antineoplastic used to treat several malignancies including pancreatic cancer. Its toxicity profile is well known with myelotoxicity, increased vascular permeability and peripheral oedema as most frequent adverse events. However, several cases of acute renal failure have been reported and haemolytic uremic syndrome(HUS) seems to be the underlying process. The cause of HUS remains unknown but its consequences can be lethal. Therefore, a high grade of suspicion is crucial to diagnose it and promptly treat it. This hopefully will reduce its morbidity. HUS is characterized by progressive renal failure associated with microangiopathic haemolytic anaemia and thrombocytopenia. The primary event is damage to endothelial cells and thrombotic microangiopathy(TMA) is the histopathological lesion. TMA affects mainly renal microvasculature. However, some cases evolve with central nervous or cardiovascular systems involvement. We present here a case of gemcitabine-induced HUS, with renal and cardiovascular system affected at the time of diagnosis which to our knowledge this is the first time of such case to be reported.

关键词： Thrombocytopenia Haemolytic uremic syndrome Thrombotic microangiopathy Gemcitabine Microangiopathic haemolytic anaemia