Study of the Interactions between Elodea canadensis and CuO Nanoparticles

Copper is one of the key heavy metals that pollute environment and constitute a serious threat to thehealth of humans and ecosystems. Copper may enter the aquatic environment in both soluble and nanoparticleform. It was previously found in a series of studies that nanoparticles, including those of several metal oxides,exercise both negative and positive effects on the higher plants which makes necessary further research on theinteraction between metal oxide nanoparticles and plants. Interactions between aquatic plants and copper–containingnanoparticles were not suffi ciently studied. The goal of this study was to contribute to the investigation of theinteractions between CuO nanoparticles and the aquatic plant Elodea canadensis under the conditions of experimentalmicrocosms. It was found that CuO nanoparticles demonstrated some phytotoxicity to Elodea canadensis.After the incubation of Elodea canadensis in the aquatic medium contaminated with CuO nanoparticles there wasa signifi cant increase (by two orders of magnitude) of the concentration of copper in the biomass of the plants

Immobilization of Scandium and Other Chemical Elements in Systems with Aquatic Macrophyte

The possibility of immobilization of scandium and other chemical elements by biogenic materialsderived from an aquatic macrophyte was explored. The concentrations of scandium and some other chemicalelements were measured in the dried biomass (mortmass) of aquatic plants Myriophyllum aquaticum. In theexperiments, the mortmass was incubated in aquatic systems where some chemical elements were added to theaquatic medium. After the incubation, the concentrations of these chemical elements in the mortmass weremeasured using inductively coupled plasma atomic emission spectroscopy (ICP-AES), also referred to asinductively coupled plasma optical emission spectrometry (ICP-OES). Increases in the concentrations ofscandium and some other chemical elements (Ce, In, Se, Ru, Pd, U, and Zr) were observed in the biogenic materia

Nakamura Tekisai and The New Book of Temperament （律呂新書）: A Philological Study of A Revision of the New Book of Temperament （修正律呂新書） and Notes for the New Book of Temperament（筆記律呂新書説）

The New Book of Temperament （律呂新書） was written by Tsai Yuan-ting （蔡元定）, a Neo-Confucianist in Southern Song Dynasty. Related to Neo-Confucianism, this book was widely spread across East Asian regions during the pre-modern age and has been extensively studied since then. After it was brought to Japan, Nakamura Tekisai, a Neo-Confucianist in early Edo Period, authored two monographs, A Revision of the New Book of Temperament（修正律呂新書） and Notes for the New Book of Temperament（筆記律呂新書説）. This thesis is an overview of the basic literature information about the two monographs that had remained unknown, through a philological study, aiming at revealing how Nakamura did some profound research into The New Book of Temperament and exploring the background to how he finally composed his monographs.東アジアの思想と構

State regional policy in modern russia: Problems and trends of development

© Medwell Journals, 2016.This study is devoted to research of the current conditions of the state regional policy in the Russian Federation. Despite the importance of the problems of regional policy in Russia, it has not become systemic to this day. "The Regional policy and federal relations" Program adopted by the Russian government in 2014 does not answer many questions and most importantly, it does not determine the current state of regions and efficiency of the state regional policy. Many provisions of the program are declarative in nature such as, for example, satisfaction of the population by quality of public and municipal services; the level of normative legal and methodological support of the powers of the Russian Federation subjects. It is not clear from the program on what and where the money will be spent, although the volume of federal budget allocations for the period 2013-2020 is 119,163,313.8 thous. rub. The main purpose of the study is to identify contradictions and tendencies of modern regional development, state regional policy, to analyze the impact of those policy on socio-economic and political development of the Russian society. To achieve this goal we have made the following hypothesis: does the modern state regional policy in Russia promote the objectives aimed at preserving an integrity and stability of the Russian state contributing to social well-being and development of a new quality of life of our citizens. The study includes the following methods and approaches in the capacity of the methodological basis for research: system and structure and functional approaches, sociological, logical and comparative methods and also analysis of the conditions and factors affecting the state regional policy of modern Russia. As a result of research, we came to the following conclusions: Regionalization issues in modern Russia took particular significance in connection with the collapse of the Soviet Union and the beginning of transformation of its totalitarian model with command-administrative management. The comprehensive and unprecedented for peacetime crisis which follows the collapse of the USSR has led to a loss of 40% of the national wealth and also gave rise to the desire of individual regions to search for ways out of the crisis separately. Under these conditions, the role of regional policy on the basis of which the emergence of a new Russia will be, increases immeasurably. The democratization of all aspects of life, a dramatic expansion in the early 90s of the rights of the Russian Federation subjects sharply actualized the problem on accommodation of interests of the state and the regions and demanded formulation of a state regional policy which objective should be both building a federal state and the socio-economic development of regions. Regional diversity makes it impossible for Russia to transfer an experience of any one country or the use of any one transition economy model tested in the world practice. In the process of its reforming, Russia must create a synthesis of domestic and international experience. The strength of Russia is in its regions, so the state regional policy in Russia is the basis, or the foundation which will allow our country to build a modern state and society

The political process of modern russia and the concept of institutional matrices

The article discusses the features of political process in Russia from the perspective of institutional matrices theory by S.G. Kirdina. During the description of contemporary political process in Russia, the authors examine its dependence on Y-matrix, the development and operation of its basic institutions. The task of these institutions influence on the political process of Russia development is set as the main purpose of the study. The following hypothesis is put forward in order to achieve this goal: is the influence of Y-matrix basic institutions an insurmountable obstacle for the modern Russian democracy development. The work includes the following methods and techniques as the methodological basis of research: neoinstitutional, systemic and structural-functional approaches, sociological, historical and logical methods, as well as the analysis of basic and variable factors influencing the political process of modern Russia. We came to the following conclusions after research: social institutions are the support of any society, the structure of the basic fundamental institutions forms a special matrix where the basic institutions are in a mutual accordance and close cooperation. Economy, politics, ideology are the most important aspects among these institutions. A society cannot be burdened with institutions, which are not inherent to it. It is impossible to replace one institution by another one, even if its effectiveness is discovered hardly in another country, but which does not meet the entire system of complementary, mutually relevant, harmonious and complementary rules, norms and institutions. The characteristic features of the modern political process in Russia: the strengthening of the unitary-centralized political system, the increase of a state role and its paternalistic nature, the imitative nature of democratic reforms, the reduction of public policy field, the power distancing from society, the growth of bureaucracy, etc. All these trends are consistent with the basic provisions of institutional matrix theory, the basic institutions of Y- institutional matrix, and can be projected on the modern Russian political process

Feasibility study of a 2 GeV superconducting H−H^{-} linac as injector for the CERN PS

This preliminary feasibility study is based on the availability of the CERN LEP2 superconducting RF system after LEP de-commissioning. The option that is explored is to use this system as part of a high energy H- linac injecting at 2 GeV into the CERN PS, with the aim of reliably providing at its output twice the presently foreseen transverse beam brightness at the ultimate intensity envisaged for LHC. This requires the linac to be pulsed at the PS repetition rate of 0.8 Hz with a mean beam current of 10 mA which is sufficient for filling the PS in 240 ms (i.e. about 100 turns) with the ultimate intensity foreseen for injection for the LHC. The linac is composed of two RFQs with a chopping section, a room temperature DTL, a superconducting section with reduced beta cavities up to 1 GeV, and a section of LEP2 cavities up to 2 GeV. This study deals, in particular, with the problems inherent in H- acceleration up to high energy and in the pulsed operation of SC cavities. Means for compensating microphonic vibrations in the SC cavities are considered, with the aim of reducing the final overall energy spread to the tight requirements for injection into a synchrotron. Other possible applications of such a machine are also briefly reviewed, that make use of its potential for working at a higher duty cycle than required for LHC alone

Multiplicities of secondaries in interactions of 1.8 GeV/nucleon Fe-56 nuclei with photoemulsion and the cascade evaporation model

A nuclear photographic emulsion method was used to study the charge-state, ionization, and angular characteristics of secondaries produced in inelastic interactions of Fe-56 nuclei at 1.8 GeV/nucleon with H, CNO, and AgBr nuclei. The data obtained are compared with the results of calculations made in terms of the Dubna version of the cascade evaporation model (DCM). The DCM has been shown to satisfactorily describe most of the interaction characteristics for two nuclei in the studied reactions. At the same time, quantitative differences are observed in some cases

The mechanisms of inhibition of frog endplate currents with homologous derivatives of the 1,1-dimethyl-3-oxybutyl phosphonic acid

The mode of inhibition of endplate currents by four esters of 1,1-dimethyl-3-oxybutyl phosphonic acid with different lipophilicities and molecule lengths were estimated by mathematical modeling based on previous electrophysiological data supplemented by several experiments with rhythmic stimulation. The aim was to discriminate between their receptor and non-receptor effects. It was shown that all esters have a two-component mechanism of depression: inhibition of the receptor open channel and allosteric modulation of the receptorchannel complex. The ratio of both functional components depends on the length and lipophilicity of the esters. Short and less lipophilic esters mostly act as open channel inhibitors and the rate of inhibition substantially depends on the rate of stimulation, i. e. probability of the receptor-channel opening. As the length of the ester radicals and their lipophilicity increased, these compounds were more active as allosteric receptor inhibitors, probably hindering the function of nAChRs from the lipid annulus. © 2012 Institute of Physiology v.v.i

Abordagem contextual nos capítulos de estequiometria e de soluções dos livros didáticos de Química aprovados pelo PNLD (Programa Nacional do Livro Didático - Brasil) /2012

A contextualização tem sido proposta no currículo escolar com o propósito de promover mudanças de comportamentos, atitudes e valores. Nessa abordagem, entende-se que o ensino de química deve se desenvolver de forma ampla, envolvendo também aspectos sociais, políticos, econômicos,ambientais e culturais, e não somente aspectos científicos. Tendo em vista a grande importância dada ao livro didático (LD) na prática docente, buscamos analisar a abordagem contextual nos capítulos de estequiometria e soluções nos LD de química aprovados pelo PNLD/2012. Os resultados mostraram que os autores dos LD analisados reconhecem a contextualização como elemento central para a formação da cidadania, porém a abordagem é diferente em cada obra. As leituras dos LD possibilitaram a identificação de alguns "níveis" de contextualização que percorreram quatro categorias de análise

Target fragments in collisions of 1.8 GeV/nucleon Fe-56 nuclei with photoemulsion nuclei, and the cascade-evaporation model

Nuclear photographic emulsion is used to study the dependence of the characteristics of target-nucleus fragments on the masses and impact parameters of interacting nuclei. The data obtained are compared in all details with the calculation results made in terms of the Dubna version of the cascade-evaporation model (DCM)