42,427 research outputs found

    LIBS-Based Detection of Antioxidant Elements in Seeds of Emblica officinalis

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    The aim of the study was to determine the effect of the elements of the extract of seed from Emblica officinalis on antioxidant enzymes and osmotic fragility of erythrocytes membrane in normal as well as streptozotocin-induced severely diabetic albino Wister rats. The results revealed that the untreated diabetic rats exhibited increase in oxidative stress as indicated by significantly diminished activities of free radical scavenging enzymes such as catalase (CAT) and superoxide dismutase (SOD) by 37.5% (p

    Application of LIBS in Detection of Antihyperglycemic Trace Elements in Momordica charantia

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    The present study exploits the information based on concentration of trace elements and minerals in understanding the role/mechanism of action of freeze-dried fruit powder suspended in distilled water of Momordica charantia (family: Cucurbitaceae) in diabetes treatment. Laser-induced break down spectroscopy (LIBS) spectra of plant product was recorded under optimized experimental conditions and analyzed. Several atomic lines such as Na, K, Mg, Ca, Fe, Al, etc. have been observed in the LIBS spectra of the above plant product. The concentrations of these minerals are determined by using calibration-free LIBS method. Correlation between the concentration of these elements/minerals and their defined role in diabetes management was studied in normal as well as diabetic animal model

    Father Time. I. Does the Cosmic Microwave Background Radiation Provide a Universal Arrow of Time ?

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    The existence of a non-thermodynamic arrow of time was demonstrated in a recent paper (Mod.Phys.Lett. A13, 1265 (1998)), in which a model of non-local Quantum Electrodynamics was formulated through the principle of gauge invariance. In this paper we show that the Cosmic Microwave Background Radiation is capable of making every particle of the universe (except those which are not acted upon by an electromagnetic field) follow this arrow of time.Comment: To appear in Mod.Phys.Lett. A. This is a slightly revised version which has been communicated to the EPS-HEP99 Conference at Tampere, Finland (15-21 July 1999) [Abs 12_204

    Gendering global governance

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    In this article I map out the major debates on global governance and the feminist critiques of the mainstream interventions in these debates. I argue that the shift from government to governance is a response to the needs of a gendered global capitalist economy and is shaped by struggles, both discursive and material, against the unfolding consequences of globalization. I suggest feminist interrogations of the concept, processes, practices and mechanisms of governance and the insights that develop from them should be centrally incorporated into critical revisionist and radical discourses of and against the concept of global governance. However, I also examine the challenges that the concept of global governance poses for feminist political practice, which are both of scholarship and of activism as feminists struggle to address the possibilities and politics of alternatives to the current regimes of governance. I conclude by suggesting that feminist political practice needs to focus on the politics of redistribution in the context of global governance