568 research outputs found

    Excluded-volume short-range repulsive potential for tetrahedralmolecules

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    By adapting a numerical code available to the scientific community, we evaluate the analytical excluded volume function for non-convex tetrahedral molecules, modelled as chains of tangent hard spheres. Since this function is overly complicated, we expand it over a suitable set of Symmetry Adapted Wigner Functions (SAWFs

    Urban models and public-private partnership

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    This book addresses the topic of urban models with reference to large western cities and particularly to global cities. In the current transitional phase, the use of language and the systematization of phenomena has become important. The book’s matrix examines two important and strongly connected themes: urban models and public-private partnerships (PPP) determined by urban functions which are transformed in an increasingly rapid and complex manner as a result of globalization. PPPs represent the new border of the modern global state. The book focuses on two principal urban models (renewal and restructuring) through PPPs and subsequently the relationship between state and market in fourteen Italian cities (renewal) and two central European cities, Leipzig and Budapest (restructuring). CoUrbIT (Complex Urban Investment Tools) and the book 'Globalization and Urban Implosion: Creating New Competitive Advantage' by the same author serve as points of referenc

    Generalized dispersion model of orientationally ordered hases of bent-core liquid crystals

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    Dual symmetry of recently introduced model with quadrupolar and octupolar microscopic interactions [L. Longa, G. Pająk, and T. Wydro, Phys. Rev. E 79, 040701(R) (2009)] is explored in the mean field approximation. Exemplary phase diagrams with new nematic–like phases are shown. Among them is the homogeneous chiral phase, predicted earlier by Landau theory [T. C. Lubensky, L. Radzihovsky, Phys. Rev. E 66, 031704 (2002)]

    ANALYSIS OF THE EFFECT OF CURCUMA LONGA ETHANOL EXTRACT AS ANTI-DYSLIPIDEMIA IN MALE WISTAR RATS

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    Abstract: Dyslipidemia is a lipid metabolism disorder characterized by increased or decreased lipid fractions in plasma. It is a risk factor for diseases still an essential problem in Indonesia, such as coronary heart disease (CHD). Curcumin is one of the compounds derived from turmeric extract, giving the turmeric plant its yellow color. Turmeric, with the scientific name Curcuma longa linn, is one of the spice plants and is also a medicinal plant. This study aims to analyze the anti-dyslipidemia effectiveness of turmeric ethanol extract (Curcuma longa) in Wistar male white rats. This type of research is an experimental Pre-test and Post-test group-only control design conducted in February 2023. Based on the results of these calculations, it can be concluded that a minimum of 4 male Wistar rats (Rattus norvegicus) are needed in each treatment group and analyzed by One-Way Anova if the data is usually distributed with further tests in the form of Post Hoc Tukey HSD test to see fundamental differences between treatments. However, as an alternative test, if the data were not normally distributed, the Kruskal-Wallis test was used. Turmeric (Curcuma longa) ethanol extract III significantly reduced total cholesterol compared to the control group (P value <0.05). Turmeric ethanol extract (Curcuma longa) III significantly reduced triglyceride levels compared to the control group (P value = 0.023). Turmeric ethanol extract (Curcuma longa) IV significantly reduced LDL levels compared to the control group (P value < 0.05). Turmeric ethanol extract (Curcuma longa) III significantly increased HDL levels compared to the control group (P value = 0.023). Turmeric ethanol extract (Curcuma longa) III significantly decreased SGOT and SGPT levels (P value < 0.05) compared to the control group. Keywords: turmeric, anti-dyslipidemia. Title: ANALYSIS OF THE EFFECT OF CURCUMA LONGA ETHANOL EXTRACT AS ANTI-DYSLIPIDEMIA IN MALE WISTAR RATS Author: Wang Rui International Journal of Healthcare Sciences ISSN 2348-5728 (Online) Vol. 11, Issue 1, April 2023 - September 2023 Page No: 270-275 Research Publish Journals Website: www.researchpublish.com Published Date: 22-September-2023 DOI: https://doi.org/10.5281/zenodo.8369178 Paper Download Link (Source) https://www.researchpublish.com/papers/analysis-of-the-effect-of-curcuma-longa-ethanol-extract-as-anti-dyslipidemia-in-male-wistar-ratsInternational Journal of Healthcare Sciences, ISSN 2348-5728 (Online), Research Publish Journals, Website: www.researchpublish.co

    The glyoxylate cycle in astasia longa, 1971

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    Previous work demonstrated the presence of an operative TCA cycle in Astasia longa. The experimental results also suggested the presence of glyoxylate shunting mechanisms since the cells grew with acetate as the sole carbon source.In the present investigation aconitase, fumarase, isocitrate lyase, and malate synthetase have been demonstrated spectrophotomet- rically. The effects of substrate concentration, pH, enzyme concen�tration, storage at - 5 C, and cofactor concentration on the activity of these enzymes have been determined. The data obtained in this investigation demonstrate the presence of isocitrate lyase and malate synthetase, 'the key glyoxylate enzymes,' in cell-free extracts of Astasia longa. Based on this and previously reported data it is concluded that in Astasia longa the dual operation of both the TCA and glyoxylate cycles occur

    Tetrahedratic mesophases, chiral order, and helical domains induced by quadrupolar and octupolar interactions

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    We present an exhaustive account of phases and phase transitions that can be stabilized in the recently introduced generalized Lebwohl-Lasher model with quadrupolar and octupolar microscopic interactions [ L. Longa, G. Pająk and T. Wydro Phys. Rev. E 79 040701 (2009)]. A complete mean-field analysis of the model, along with Monte Carlo simulations allows us to identify four distinct classes of the phase diagrams with a number of multicritical points where, in addition to the standard uniaxial and biaxial nematic phases, the other nematic like phases are stabilized. These involve, among the others, tetrahedratic (T), nematic tetrahedratic (NT), and chiral nematic tetrahedratic (NT*) phases of global Td, D2d, and D2 symmetry, respectively. Molecular order parameters and correlation functions in these phases are determined. We conclude with generalizations of the model that give a simple molecular interpretation of macroscopic regions with opposite optical activity (ambidextrous chirality), observed, e.g., in bent-core systems. An estimate of the helical pitch in the NT* phase is also given
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