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Soil erosion: An important indicator for the assessment of land degradation neutrality in Russia

International Soil and Water Conservation Research 2020年第4期8卷 418-429页

作者： petr Tsvmbarovich German Kust Mikhail Kumani Valentin Golosov Olga Andreeva Institute of Geography RAS Russian Academy of SciencesMoscowRussia Lomonosov Moscow State University MoscowRussia Kursk State University KurskRussia

This review of soil erosion(SE)studies in Russia focuses on two main tasks:(i)ensuring the completeness and reliability of SE data in Russia,a large country(17.1 million km2)with a variety of natural and socio-economic causes of land degradation,(ii)assessing the possibility of including a SE indicator among the indicators of land degradation neutrality(LDN).A wide range of statistical,remote sensing,mathematical modeling *** results of scientific and field studies obtained at different levels were *** is asserted that in Russia the total area of eroded lands and those under erosion risk occupy more than 50%of all agricultural lands,whereas soil fertility of croplands decreased in Soviet time(from 1950s to 1980s)by 30-60%only due to water ***,recent scientific studies indicate a decrease in erosion rate and in the area of eroded land during the last 30-40 years as a result of abandonment of arable land and subsequent overgrown with natural *** climate change resulting in decrease of the depth of soil freezing,flow of spring runoff also adds to the decrease of soil *** SE indicator was suggested as an important complement to three global LDN *** national and subnational level,it can be interpreted through such indices as"Rate of soil loss"(ton ha-1 yr-1)and"Total soil loss"(1000 tons,in certain area during selected time period).At local level the set of indices can be wider and site-specific,including those obtained through remote sensing data by using the classifier of thematic applications of remote sensing technologies;the example was tested at the local site.

关键词： Russian Federation Soil erosion Land degradation neutrality

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ZnO@MOF@PANI core-shell nanoarrays on carbon cloth for high-performance supercapacitor electrodes

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Journal of Energy Chemistry 2019年第8期28卷 124-131,I0005页

作者： Chunmei Zhu Ying He Yijun Liu Natalia Kazantseva petr Saha Qilin Cheng Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and TechnologyShanghai 200237 China Centre of Polymer Systems Tomas Bata University in Zlinnam. T. G. Masaryka 5555 760 01 Zlin Czechia

Hierarchical ZnO@metal-organic framework @polyaniline(ZnO@MOF@PANI) core-shell nanorod arrays on carbon cloth has been fabricated by combining electrodeposition and hydrothermal method. Well-ordered Zn O nanorods not only act as a scaffold for growth of MOF/PANI shell but also as Zn source for the formation of MOF. The morphology of ZnO@MOF@PANI composite is greatly influenced by the number of PANI electrodeposition cycles. Their structural and electrochemical properties were characterized with different techniques. The results indicate that the Zn O@MOF@PANI with 13 CV cycles of PANI deposition demonstrates the maximum specific capacitance of 340.7 F g-1 at 1.0 A g-1, good rate capability with84.3% capacitance retention from 1.0 to 10 A g-1 and excellent cycling life of 82.5% capacitance retention after 5000 cycles at high current density of 2.0 A g-1. This optimized core-shell nanoarchitecture endows the composite electrode with short ion diffusion pathway, rapid ion/electron transfer and high utilization of active materials, which thus result in excellent electrochemical performance of the ternary composite.

关键词： Metal-oragnic framework Polyaniline Core-shell nanoarrays Supercapacitor Electrochemical properties

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Case of morphine-induced ventricular fi brillation

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World Journal of Emergency Medicine 2017年第4期8卷 310-312页

作者： Roman Skulec Jitka Callerova Jiri Knor petr Ostadal petr Kmonicek Vladimir Cerny Department of Anesthesiology Perioperative Medicine and Intensive Care J.E. Purkinje University Masaryk Hospital inUsti nad Labem Usti nad Labem Czech Republic Emergency Medical Service of the Central Bohemian Region Kladno Czech Republic Department of Anesthesiology and Intensive Care Charles University in Prague Faculty of Medicine in Hradec KraloveUniversity Hospital Hradec Kralove Hradec Kralove Czech Republic 3rd Medical Faculty Charles University in Prague Prague Czech Republic Cardiovascular Center Na Homolce Hospital Prague Czech Republic Department of Anesthesia Pain Management and Perioperative Medicine Dalhousie University Halifax Nova Scotia Canada Department of Research and Development and Department of Anesthesiology and Intensive Care Charles University inPrague Faculty of Medicine in Hradec Kralove University Hospital Hradec Kralove Hradec Kralove Czech Republic

Morphine is considered as a traditional and safemedication to relieve pain and dyspnea in the setting of acutecoronary syndrome and cardiogenic pulmonary edema.[1,2]It is also attributed to dispose an antiarrhythmic effect.[3] Wereport a case of morphine-induced ventricular fi brillation inthe prehospital emergency treatment. The patient presentedacute myocardial infarction with ST segment elevationscomplicated with uncontrolled hypertension and cardiogenicpulmonary edema.

关键词：小学英文教学辅导教材

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Subcellular Localization and In Vivo Interactions of the Arabidopsis thaliana Ethylene Receptor Family Members

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Molecular Plant 2008年第2期1卷 308-320页

作者： Christopher Grefen Katrin Stadele Kamil Ruzicka petr Obrdlik Klaus Hatter Jakub Horak Zentrum fur Molekularbiologie der Pflanzen Pflanzenphysiologie Universitat Tubingen Auf der Morgenstelle 1 72076 Tubingen Germany Zentrum for Molekularbiologie der Pflanzen Entwicklungsgenetik Universit&t Tubingen Auf der Morgenstelle 3 72076 Tubingen Germany IonGate Biosciences GmbH Industriepark Hochst D 528 65926 Frankfurt am Main Germany

The gaseous phytohormone ethylene regulates many developmental processes and responses to environmental conditions in higher plants. In Arabidopsis thaliana, ethylene perception and initiation of signaling are mediated by a family of five receptors which are related to prokaryotic two-component sensor histidine kinases. The transient ex- pression of fluorescence-tagged receptors in tobacco （Nicotiana benthamiana） epidermal leaf cells demonstrated that all ethylene receptors are targeted to the ER endomembrane network and do not localize to the plasmalemma. In support of in planta overlay studies, the ethylene receptors form homomeric and heteromeric protein complexes at the ER in living plant cells, as shown by membrane recruitment assays. A comparable in vivo interaction pattern was found in the yeast mating-based split-ubiquitin system. The overlapping but distinct expression pattern of the ethylene receptor genes suggests a differential composition of the ethylene receptor complexes in different plant tissues. Our findings may have crucial functional implications on the ethylene receptor-mediated efficiency of hormone perception, induction of signaling, signal attenuation and output.

关键词： Subcellular Localization Vivo Interactions Arabidopsis thaliana Ethylene Receptor Family Members

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Effect of repeated spring drought and summer heavy rain on managed grassland biomass production and CO_(2) efflux

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Journal of Plant Ecology 2017年第3期10卷 476-485页

作者： Eva Darenova petr Holub Lenka Krupkova Marian Pavelka Global Change Research Institute Czech Academy of SciencesBelidla 4aCZ-60300 BrnoCzech Republic

Aims Ecosystem respiration represents an important component of the carbon *** response of respiration to climate change can have a significant effect on carbon sequestration in terrestrial ecosystems in the future when,according to climate scenarios,spring drought and consequent summer heavy rains are *** of our study were to determine the effect of repeated spring drought on biomass production and CO_(2) efflux from a mountain grassland in Beskydy Mountains in the Czech Republic and to evaluate factors driving the differences among the study *** CO_(2) efflux was measured on plots with ambient precipitation con-ditions(AMB)and on plots where drought conditions(DRY)in the first half of the growing seasons and consequent heavy rain were simulated in *** Findings The spring drought significantly decreased the amount of above-ground biomass sampled just after the simulated drought in all years except for *** the contrary,the spring drought stimulated root *** drought also resulted in a rapid decrease in CO_(2) *** was lower by up to 46%for the DRY treatment compared to AMB *** the sim-ulated drought period,differences in CO_(2) efflux between the treatments gradually *** heavy rains in DRY resulted in fast but temporary increase in CO_(2) *** can assume that the future spring drought will have a significant effect on carbon balance of grassland *** impact will depend on the length of the dry period and the time between the beginning of the growing season and the dry period.

关键词： above-ground biomass Beskydy Mountains rainfall manipulation respiration rainout shelters root biomass

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Cardiac rehabilitation and its essential role in the secondary prevention of cardiovascular diseases

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World Journal of Clinical Cases 2021年第8期9卷 1761-1784页

作者： petr Winnige Robert Vysoky Filip Dosbaba Ladislav Batalik Department of Public Health Faculty of MedicineMasaryk UniversityCzech RepublicBrno 62500JihomoravskyCzech Republic Department of Rehabilitation University Hospital BrnoBrno 62500Czech Republic Department of Health Promotion Faculty of Sports StudiesMasaryk UniversityBrno 62500JihomoravskyCzech Republic

Cardiovascular diseases are the most common causes of mortality *** are frequently the reasons for patient hospitalization,their incapability for work,and *** diseases represent a significant socio-economic burden affecting the medical system as well as patients and their *** has been demonstrated that the etiopathogenesis of cardiovascular diseases is significantly affected by lifestyle,and so modification of the latter is an essential component of both primary and secondary *** rehabilitation(CR)represents an efficient secondary prevention model that is especially based on the positive effect of regular physical *** review presents an overview of basic information on CR with a focus on current trends,such as the issue of the various training modalities,utilization,and barriers to it or the use of telemedicine *** attention should be devoted to these domains,as CR continues evolving as an effective and readily available intervention in the future.

关键词： Cardiac rehabilitation Secondary prevention Cardiovascular diseases Utilization Barriers Telerehabilitation

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Does Cold Plasma Affect Breaking Dormancy and Seed Germination? A Study on Seeds of Lamb's Quarters(Chenopodium album agg.)

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Plasma Science and Technology 2009年第6期11卷 750-754页

作者： Bozena ERA Michal ERY Vitězslav TRANAK petr PATENKA Milan TICHY Institute of Systems Biology and Ecology Academy of Sciences of the Czech RepublicNa Sadkach 7CZ-370 05 Ceske BudejoviceCzech Republic University of South Bohemia in Ceske Budejovice Faculty of EducationDepartment of PhysicsJeronymova 10CZ-371 15 Ceske BudejoviceCzech Republic Technical University of Liberec Department of Material SciencesHalkova 6CZ-461 17 Liberec 1Czech Republic Charles University in Prague Faculty of Mathematics and PhysicsV Holesovickach CZ-180 00 Praha 8Czech Republic

Low-pressure discharge is applied for stimulation of germination of two seed lots of Lamb＇s Quarters （Chenopodium album agg.） with different starting germinations （17%, 8%） and in different stages of dormancy. Different exposition durations with cold plasma treatment were applied. The variable of the ratio cumulative germination was calculated. The Richards＇ equation was used for curve-fitting and simulation of the growth curves. Population parameters, namely Vi - viability, Me - time, Qu - dispersion, and Sk - skewness, counted from the curves described the germination rate well. Significant differences among Qu confirmed the erratic dormancy and gradual germination of Lamb＇s Quarters. No difference in the Me parameter was found between two tested seed lots, and no interspecies characteristics were changed using low-pressure discharge. The results suggested that plasma treatment changed seed germination in Lamb＇s Quarters seeds.

关键词： chenopodium album fitting treatment parameter. seed germination low-pressure discharge plasma

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Dielectric behaviors at microwave frequencies and Mssbauer effects of chalcedony, agate, and zultanite

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Chinese Physics B 2015年第5期24卷 649-655页

作者： Levent Paral? Israfil Sabikoglu Jiri Tucek Jiri Pechousek petr Novak Jakub Navarik Celal Bayar University Departments of Electronics and Automation Celal Bayar University Faculty of Arts and Sciences Department of Physics Muradiye Regional Centre of Advanced Technologies and Materials Department of Experimental Physics Faculty of SciencePalacky University

In this study, dielectric properties within 8-12 GHz microwave frequencies, inductively coupled plasma-atomic emis- sion spectrometry, Fourier transform infrared spectrometry, synchronized two thermal analyses, and 57Fe Mossbauer spectroscopy analysis of chalcedony, agate, and zultanite samples from Turkey are presented. Agate and chalcedony show the same nine vibrational absorption peaks obtained unlike zultanite from FTIR spectra in the 350 cm-1 to 4000 cm-1 range, ε＇ values of chalcedony, agate and zultanite derived at 10.5 GHz were 4.67, 4.41, and 7.34, respectively, eI and e~ values of the studied samples at the microwave frequencies are related to the percentage weight of their constituent parts in their chemical compositions. 57Fe Mossbauer spectroscopy results confirm the existence of iron-containing islands in the crystal structure of zultanite, agate, and chalcedony samples, equipped them with magnetic features typical for magnetic nanoparticles including superparamagnetism. The presence of iron-containing islands significantly affects the magnetic, dielectric, and optical properties of studied samples that are not observed for pure minerals without any foreign inclusions.

关键词： zultanite agate chalcedony microwave dielectric properties Mossbauer effects

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Erosive wear properties of ZA-27 alloy-based nanocomposites: Influence of type, amount, and size of nanoparticle reinforcements

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Friction 2019年第4期7卷 340-350页

作者： Aleksandar VENCL Ilija BOBIC Biljana BOBIC Kristina JAKIMOVSKA petr SVOBODA Mara KANDEVA Faculty of Mechanical Engineering University of BelgradeKraljice Marije 16Belgrade 11120Serbia Institute of Nuclear Sciences'Vinca' University of BelgradeMike Petrovica Alasa 12-14Belgrade 11001Serbia Institute of Chemistry Technology and MetallurgyUniversity of BelgradeNjegoseva 12Belgrade 11000Serbia Faculty of Mechanical Engineering in Skopje Ss.Cyril and Methodius UniversityKarposh II bbSkopje 1000Macedonia Faculty of Mechanical Engineering Brno University of TechnologyTechnicka2896/2Brno 61669Czech Republic Faculty of Industrial Technology Technical University of Sofia8 Kliment Ohridski BlvdSofia 1000Bulgaria

Metal matrix nanocomposites(MMnCs)comprise a metal matrix filled with nanosized reinforcements with physical and mechanical properties that are very different from those of the *** ZA-27 alloy-based nanocomposites,the metal matrix provides ductility and toughness,while usually used ceramic reinforcements give high strength and *** ZA-27 alloy-based nanocomposites,reinforced with different types(Si C and Al2O3),amounts(0.2 wt.%,0.3 wt.%,and 0.5 wt.%)and sizes(25 nm,50 nm,and 100 nm)of nanoparticles were produced through the compocasting process with mechanical alloying pre-processing(ball milling).It was previously shown that the presence of nanoparticles in ZA-27 alloy-based nanocomposites led to the formation of a finer structure in the nanocomposites matrix and an improvement in the basic mechanical properties(hardness and compressive yield strength)through the enhanced dislocation density strengthening *** particle erosive wear testing demonstrated that these improvements were followed with an increase in the erosive wear resistance of tested nanocomposites,as ***,by analyzing the influences of type,amount,and size of nanoparticles on the erosive wear resistance of nanocomposites,it was demonstrated that there is an optimal amount of nanoparticles,which in our case is 0.3 wt.%,and that the presence of SiC nanoparticles and smaller nanoparticles in nanocomposites had more beneficial influence on erosive wear resistance.

关键词： ZA-27 alloy nanocomposites nanoparticles compocasting fractography erosive wear

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Timing is everything:does early and late germination favor invasions by herbaceous alien plants?

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Journal of Plant Ecology 2018年第1期11卷 4-16页

作者： Margherita Gioria petr Pyšek Bruce A.Osborne Institute of Botany Department of Invasion EcologyThe Czech Academy of SciencesCZ-25243 PrůhoniceCzech Republic UCD School of Biology and Environmental Science University College DublinBelfieldDublin 4Ireland Department of Ecology Faculty of ScienceCharles University in PragueViničná7CZ-12844 Prague 2Czech Republic UCD Earth Institute University College DublinBelfieldDublin 4Ireland

Aims Plant invasions represent a unique opportunity to study the mechanisms underlying community assembly rules and species distribution *** a superior competitive ability has often been proposed as a major driver of successful plant invasions,its significance depends crucially on the timing of any competitive *** assess whether a mismatch in germination phenology can favor the establishment of alien species,allowing them to exploit vacant niches where competition is *** well as having important effects on the survival,growth and fitness of a species,asymmetric competition and potential soil legacies resulting from early or late germination can also impact on species ***,early or late germination comes at a cost,increases the risks of exposure to unfavorable conditions and requires an enhanced abiotic resistance if it is to lead to successful *** Findings While there are several anecdotal accounts of early and late ger-mination for invasive species,there are limited comparative data with resident species growing under natural *** evidence from grassland communities indicates that a short-term germination advantage or priority(few days/weeks)provides inva-sive species with a strong competitive advantage over native species and is a critical factor in many *** the exploitation of periods of low competition is a plausible mechanism for the suc-cessful establishment of many invasive plants,direct evidence for this strategy is still *** is particularly true with regard to the exploitation of late germination ***,long-term comparative monitoring of the germination phenology of invasive and native plants in situ is needed to assess its significance in a range of ecosystems and its impact on community dynamics.

关键词： competition germination invasive plants phenology temporal niche

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