85 research outputs found

    On an easy transition from operator dynamics to generating functionals by Clifford algebras

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    Clifford geometric algebras of multivectors are treated in detail. These algebras are build over a graded space and exhibit a grading or multivector structure. The careful study of the endomorphisms of this space makes it clear, that opposite Clifford algebras have to be used also. Based on this mathematics, we give a fully Clifford algebraic account on generating functionals, which is thereby geometric. The field operators are shown to be Clifford and opposite Clifford maps. This picture relying on geometry does not need positivity in principle. Furthermore, we propose a transition from operator dynamics to corresponding generating functionals, which is based on the algebraic techniques. As a calculational benefit, this transition is considerable short compared to standard ones. The transition is not injective (unique) and depends additionally on the choice of an ordering. We obtain a direct and constructive connection between orderings and the explicit form of the functional Hamiltonian. These orderings depend on the propagator of the theory and thus on the ground state. This is invisible in path integral formulations. The method is demonstrated within two examples, a non-linear spinor field theory and spinor QED. Antisymmetrized and normal-ordered functional equations are derived in both cases.Comment: 23p., 76kB, plain LaTeX, [email protected]

    Retrospective analysis of reports on psychopharmaceuticals drugs safety to identify cases of off-label

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    The article presents the retrospective analysis of reports on psychopharmaceuticals drugs safety to identify cases of off-label

    New Exact Solutions of a Generalized Shallow Water Wave Equation

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    In this work an extended elliptic function method is proposed and applied to the generalized shallow water wave equation. We systematically investigate to classify new exact travelling wave solutions expressible in terms of quasi-periodic elliptic integral function and doubly-periodic Jacobian elliptic functions. The derived new solutions include rational, periodic, singular and solitary wave solutions. An interesting comparison with the canonical procedure is provided. In some cases the obtained elliptic solution has singularity at certain region in the whole space. For such solutions we have computed the effective region where the obtained solution is free from such a singularity.Comment: A discussion about singularity and some references are added. To appear in Physica Script

    Perspectivas do uso do ataque sulfúrico (H2SO4 1:1) e da dissolução alcalina (NaOH 0,5 N) para a analise mineralógica expedita de solos com B textural e B latossólico.

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    Descrição de um.procedimento analitíco para a quantificação dos principais minerais de solos cor B textural e B latossélico (fração argila). O grupo das canditas é determinado por dissolução seletiva com NaOH 0,5 N após a desestabilização térmica a 550 graus Celsius duraante duas horas, mas sem que a amostra sofra nenhum tratamento prévio de natureza química....bitstream/item/62681/1/CNPS-BOL.-PESQ.-34-84.pdfTrabalho apresentado no 19. Congresso Brasileiro de Ciencia do Solo

    Analysis of Adverse Reactions in Elderly Patients Based on Quantitative Methods of Signal Detection

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    A well-known problem in pharmacotherapy is an increased risk of adverse drug reactions (ADRs) in older as compared to younger patients. The Russian pharmacovigilance database includes a significant number of spontaneous reports of suspected ADRs in patients aged 65 and older. An increase in ADRs reporting makes it difficult to identify potential safety signals based on qualitative approaches only, which necessitates the use of statistical methods for signal detection based on disproportionality.The aim of the studyΒ was to assess the applicability of quantitative methods for signal detection and analysis of ADR risks in the elderly using the Russian spontaneous report database.Materials and methods:Β the study covered the reports on patients 65 years of age and older, which were submitted to the spontaneous report database from January 2008 until June 2018. The procedure recommended by the European Medicines Agency was used to identify potential statistical safety signals which were determined based on the following criteria: Reporting Odds Ratio, RORβ€”lower bound of the 95% confidence interval >1, number of cases β‰₯2; Proportional Reporting Ratio, PRRΒ β‰₯Β 2, Chi-square value Ο‡2Β β‰₯ 4, number of cases β‰₯3, lower bound of the 95% confidence interval >1, number of cases β‰₯3.Results:Β 2231 potential statistical signals were identified. Of these, the vast majority of combinations of suspected drugs and ADRs were associated with known drug risks, and were not new safety signals for these drugs. The largest proportion of statistical signals was attributed to the following pharmacological groups: antiplatelet agents, cephalosporins, non-steroidal anti-inflammatory drugs, fluoroquinolones, angiotensin-converting enzyme inhibitors, metabolic agents, and indirect anticoagulants.Conclusion: the results obtained indicate the applicability and effectiveness of statistical methods based on disproportionality of reporting for the analysis of the Russian spontaneous report database in order to identify potential drug safety issues

    Avaliação da aptidão agroecológica das terras de paisagens montanhosas da Região Serrana do Estado do Rio de Janeiro.

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    A avaliação do potencial agrΓ­cola fornece informaçáes relevantes para subsidiar o planejamento do uso das terras. O objetivo deste trabalho foi aplicar um conjunto de procedimentos para a avaliação do potencial agroecolΓ³gico das terras em uma Γ‘rea montanhosa na regiΓ£o Serrana do Estado do Rio de Janeiro, ocupada por pequenos produtores rurais, em regime de agricultura familiar. Foram considerados, na avaliação agroecolΓ³gica, informaçáes de solos, geomorfologia, litologia, rede de drenagem, estrutura fundiΓ‘ria, uso e cobertura vegetal, declividade e unidades ambientais, extraΓ­das de estudos anteriores. Essas informaçáes foram incorporadas a um banco de dados desenvolvido no SIG e associadas com informaçáes socioeconΓ΄micas de pluviosidade e Γ‘reas de proteção legal e, a partir dessas informaçáes, avaliou-se a aptidΓ£o agroecolΓ³gica por unidades ambientais delimitadas. O modelo de aptidΓ£o agroecolΓ³gica considerado envolve a indicação de uso, manejo e sugestΓ£o de alternativas sustentΓ‘veis de utilização das terras com menor Γ­ndice de agressΓ£o ao meio ambiente, de forma a incrementar a qualidade ambiental sem descuidar da integridade das terras. A metodologia usada foi adequada ao planejamento de Γ‘reas de relevo movimentado, pois, onde se identificou a ocorrΓͺncia de compartimentos mais frΓ‘geis e problemΓ‘ticos em função dos solos, da declividade, da suscetibilidade aos processos erosivos e ao maior grau de fragilidade ambiental, estes se encaixaram nas classes de aptidΓ£o inapta, restrita, preservação ambiental ou Γ‘reas de recomposição de matas.bitstream/item/146012/1/BPD-254-Avaliacao-Aptidao-Serrana-RJ.pd

    ΠžΡ†Π΅Π½ΠΊΠ° эффСктивности управлСния Π΄Π΅ΡΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒΡŽ прСдприятия

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    ЦСлью исслСдования являСтся ΠΎΡ†Π΅Π½ΠΊΠ° эффСктивности управлСния Π΄Π΅ΡΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒΡŽ прСдприятия ΠΊΠ°ΠΊ ΠΈΠ½Ρ‚Π΅Π³Ρ€Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ показатСля, Ρ‚ΠΎ Π΅ΡΡ‚ΡŒ управлСния ΡΠΎΠ²ΠΎΠΊΡƒΠΏΠ½ΠΎΡΡ‚ΡŒΡŽ Π΄Π΅ΡΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚Π΅ΠΉ, Ρ‚Π°ΠΊΠΈΡ… ΠΊΠ°ΠΊ производствСнная, инвСстиционная, инновационная, маркСтинговая ΠΈ финансовая

    Π£ΡΡ‚ΠΎΠΉΡ‡ΠΈΠ²ΠΎΡΡ‚ΡŒ Π½ΠΈΠΊΠ΅Π»Π΅Π²Ρ‹Ρ… ΠΏΡ€ΠΎΠΌΡ‹ΡˆΠ»Π΅Π½Π½Ρ‹Ρ… ΠΊΠ°Ρ‚Π°Π»ΠΈΠ·Π°Ρ‚ΠΎΡ€ΠΎΠ² мСтанирования ΠΊ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡ‚Π²ΠΈΡŽ органичСских абсорбСнтов удалСния диоксида ΡƒΠ³Π»Π΅Ρ€ΠΎΠ΄Π° ΠΈΠ· синтСз-Π³Π°Π·Π°

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    We report the results of studies on the influences of the organic carbon dioxide absorbent – aqueous solution of activated methyldiethanolamine (MDEA) – on the physico-chemical and mechanical characteristics of nickel-alumina catalyst NIAP-07-01 (NKM-1) and cement-containing catalysts NIAP-07-07 (NKM-7), Meth-134 and Meth-135 for the hydrogenation of carbon oxide (methanation). It is established that for the nickel-alumina and nickel-cement-containing catalysts subjected to activated methyldiethanolamine (MDEA) it’s possible to restore their strength and catalytic properties. In order to increase the time of operation of the methanator it is recommended to apply a new Nickel cement-containing catalyst NIAP-07-07 (NKM-7), which can be produced as tablets, rings or extrudates.ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ исслСдований воздСйствия органичСского абсорбСнта Π² Π²ΠΈΠ΄Π΅ Π²ΠΎΠ΄Π½ΠΎΠ³ΠΎ раствора Π°ΠΊΡ‚ΠΈΠ²ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ мСтилдиэтаноламина (ΠœΠ”Π­Π), ΡΠ²Π»ΡΡŽΡ‰Π΅Π³ΠΎΡΡ абсорбСнтом диоксида ΡƒΠ³Π»Π΅Ρ€ΠΎΠ΄Π° ΠΏΡ€ΠΈ Π΅Π³ΠΎ ΡƒΠ΄Π°Π»Π΅Π½ΠΈΠΈ ΠΈΠ· Π°Π·ΠΎΡ‚ΠΎ-Π²ΠΎΠ΄ΠΎΡ€ΠΎΠ΄Π½ΠΎΠΉ смСси, Π½Π° Ρ„ΠΈΠ·ΠΈΠΊΠΎ-химичСскиС ΠΈ Ρ„ΠΈΠ·ΠΈΠΊΠΎ-мСханичСскиС характСристики никСльалюминиСвого ΠΌΠ°Ρ€ΠΊΠΈ НИАП-07-01 (НКМ-1) ΠΈ цСмСнтсодСрТащих ΠΌΠ°Ρ€ΠΊΠΈ НИАП-07-07 (НКМ-7), Meth-134 ΠΈ Meth-135 ΠΊΠ°Ρ‚Π°Π»ΠΈΠ·Π°Ρ‚ΠΎΡ€ΠΎΠ² гидрирования оксидов ΡƒΠ³Π»Π΅Ρ€ΠΎΠ΄Π° (мСтанирования). УстановлСно, Ρ‡Ρ‚ΠΎ Π½ΠΈΠΊΠ΅Π»ΡŒΠ°Π»ΡŽΠΌΠΈΠ½ΠΈΠ΅Π²Ρ‹Π΅ ΠΈ Π½ΠΈΠΊΠ΅Π»ΡŒΡ†Π΅ΠΌΠ΅Π½Ρ‚ΡΠΎΠ΄Π΅Ρ€ΠΆΠ°Ρ‰ΠΈΠ΅ ΠΊΠ°Ρ‚Π°Π»ΠΈΠ·Π°Ρ‚ΠΎΡ€Ρ‹, ΠΏΠΎΠ΄Π²Π΅Ρ€Π³Π½ΡƒΡ‚Ρ‹Π΅ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡ‚Π²ΠΈΡŽ Π°ΠΊΡ‚ΠΈΠ²ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ мСтилдиэтаноламина (ΠœΠ”Π­Π), Π²ΠΎΡΡΡ‚Π°Π½Π°Π²Π»ΠΈΠ²Π°ΡŽΡ‚ свои прочностныС ΠΈ каталитичСскиС свойства. Для увСличСния Π²Ρ€Π΅ΠΌΠ΅Π½ΠΈ эксплуатации ΠΌΠ΅Ρ‚Π°Π½Π°Ρ‚ΠΎΡ€Π° рСкомСндуСтся ΠΏΡ€ΠΈΠΌΠ΅Π½ΡΡ‚ΡŒ Π½ΠΎΠ²Ρ‹ΠΉ Π½ΠΈΠΊΠ΅Π»Π΅Π²Ρ‹ΠΉ цСмСнтсодСрТащий ΠΊΠ°Ρ‚Π°Π»ΠΈΠ·Π°Ρ‚ΠΎΡ€ ΠΌΠ°Ρ€ΠΊΠΈ НИАП-07-07 (НКМ-7), ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ ΠΌΠΎΠΆΠ΅Ρ‚ ΠΈΠ·Π³ΠΎΡ‚Π°Π²Π»ΠΈΠ²Π°Ρ‚ΡŒΡΡ Π² Π²ΠΈΠ΄Π΅ Ρ‚Π°Π±Π»Π΅Ρ‚ΠΎΠΊ, ΠΊΠΎΠ»Π΅Ρ† ΠΈΠ»ΠΈ экструдатов

    Π£ΡΡ‚ΠΎΠΉΡ‡ΠΈΠ²ΠΎΡΡ‚ΡŒ Π½ΠΈΠΊΠ΅Π»Π΅Π²Ρ‹Ρ… ΠΏΡ€ΠΎΠΌΡ‹ΡˆΠ»Π΅Π½Π½Ρ‹Ρ… ΠΊΠ°Ρ‚Π°Π»ΠΈΠ·Π°Ρ‚ΠΎΡ€ΠΎΠ² мСтанирования ΠΊ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡ‚Π²ΠΈΡŽ органичСских абсорбСнтов удалСния диоксида ΡƒΠ³Π»Π΅Ρ€ΠΎΠ΄Π° ΠΈΠ· синтСз-Π³Π°Π·Π°

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    Received: 16.06.2017; accepted: 06.09.2017; published: 20.10.2017.ΠŸΠΎΡΡ‚ΡƒΠΏΠΈΠ»ΠΎ: 16.06.2017; принято: 06.09.2017; ΠΎΠΏΡƒΠ±Π»ΠΈΠΊΠΎΠ²Π°Π½ΠΎ: 20.10.2017.We report the results of studies on the influences of the organic carbon dioxide absorbent – aqueous solution of activated methyldiethanolamine (MDEA) – on the physico-chemical and mechanical characteristics of nickel-alumina catalyst NIAP-07-01 (NKM-1) and cement-containing catalysts NIAP-07-07 (NKM-7), Meth-134 and Meth-135 for the hydrogenation of carbon oxide (methanation). It is established that for the nickel-alumina and nickel-cementcontaining catalysts subjected to activated methyldiethanolamine (MDEA) it’s possible to restore their strength and catalytic properties. In order to increase the time of operation of the methanator it is recommended to apply a new Nickel cement-containing catalyst NIAP-07-07 (NKM-7), which can be produced as tablets, rings or extrudates.ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ исслСдований воздСйствия органичСского абсорбСнта Π² Π²ΠΈΠ΄Π΅ Π²ΠΎΠ΄Π½ΠΎΠ³ΠΎ раствора Π°ΠΊΡ‚ΠΈΠ²ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ мСтилдиэтаноламина (ΠœΠ”Π­Π), ΡΠ²Π»ΡΡŽΡ‰Π΅Π³ΠΎΡΡ абсорбСнтом диоксида ΡƒΠ³Π»Π΅Ρ€ΠΎΠ΄Π° ΠΏΡ€ΠΈ Π΅Π³ΠΎ ΡƒΠ΄Π°Π»Π΅Π½ΠΈΠΈ ΠΈΠ· Π°Π·ΠΎΡ‚ΠΎ-Π²ΠΎΠ΄ΠΎΡ€ΠΎΠ΄Π½ΠΎΠΉ смСси, Π½Π° Ρ„ΠΈΠ·ΠΈΠΊΠΎ-химичСскиС ΠΈ Ρ„ΠΈΠ·ΠΈΠΊΠΎ-мСханичСскиС характСристики никСльалюминиСвого ΠΌΠ°Ρ€ΠΊΠΈ НИАП-07-01 (НКМ-1) ΠΈ Ρ†Π΅ΠΌΠ΅Π½Ρ‚-содСрТащих ΠΌΠ°Ρ€ΠΊΠΈ НИАП-07-07 (НКМ-7), Meth-134 ΠΈ Meth-135 ΠΊΠ°Ρ‚Π°Π»ΠΈΠ·Π°Ρ‚ΠΎΡ€ΠΎΠ² гидрирования оксидов ΡƒΠ³Π»Π΅Ρ€ΠΎΠ΄Π° (мСтанирования). УстановлСно, Ρ‡Ρ‚ΠΎ Π½ΠΈΠΊΠ΅Π»ΡŒΠ°Π»ΡŽΠΌΠΈΠ½ΠΈΠ΅Π²Ρ‹Π΅ ΠΈ Π½ΠΈΠΊΠ΅Π»ΡŒΡ†Π΅ΠΌΠ΅Π½Ρ‚ΡΠΎΠ΄Π΅Ρ€ΠΆΠ°Ρ‰ΠΈΠ΅ ΠΊΠ°Ρ‚Π°Π»ΠΈΠ·Π°Ρ‚ΠΎΡ€Ρ‹, ΠΏΠΎΠ΄Π²Π΅Ρ€Π³Π½ΡƒΡ‚Ρ‹Π΅ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡ‚Π²ΠΈΡŽ Π°ΠΊΡ‚ΠΈΠ²ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ мСтилдиэтаноламина (ΠœΠ”Π­Π), Π²ΠΎΡΡΡ‚Π°Π½Π°Π²Π»ΠΈΠ²Π°ΡŽΡ‚ свои прочностныС ΠΈ каталитичСскиС свойства. Для увСличСния Π²Ρ€Π΅ΠΌΠ΅Π½ΠΈ эксплуатации ΠΌΠ΅Ρ‚Π°Π½Π°Ρ‚ΠΎΡ€Π° рСкомСндуСтся ΠΏΡ€ΠΈΠΌΠ΅Π½ΡΡ‚ΡŒ Π½ΠΎΠ²Ρ‹ΠΉ Π½ΠΈΠΊΠ΅Π»Π΅Π²Ρ‹ΠΉ цСмСнтсодСрТащий ΠΊΠ°Ρ‚Π°Π»ΠΈΠ·Π°Ρ‚ΠΎΡ€ ΠΌΠ°Ρ€ΠΊΠΈ НИАП-07-07 (НКМ-7), ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ ΠΌΠΎΠΆΠ΅Ρ‚ ΠΈΠ·Π³ΠΎΡ‚Π°Π²Π»ΠΈΠ²Π°Ρ‚ΡŒΡΡ Π² Π²ΠΈΠ΄Π΅ Ρ‚Π°Π±Π»Π΅Ρ‚ΠΎΠΊ, ΠΊΠΎΠ»Π΅Ρ† ΠΈΠ»ΠΈ экструдатов
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