Physical, Spectroscopic and Thermal Characterization of Biofield treated Myristic acid

Myristic acid has been extensively used for fabrication of phase change materials for thermal energy storage applications. The objective of present research was to investigate the influence of biofield treatment on physical and thermal properties of myristic acid. The study was performed in two groups (control and treated). The control group remained as untreated, and biofield treatment was given to treated group. The control and treated myristic acid were characterized by X-ray diffraction (XRD), Differential scanning calorimetry (DSC), Thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR) spectroscopy, and Laser particle size analyzer. XRD results revealed alteration in intensity of peaks as well as significant increase in crystallite size (27.07%) of treated myristic acid with respect to control. DSC study showed increase in melting temperature of treated myristic acid as compared to control. Nevertheless, significant change (10.16%) in latent heat of fusion (∆H) was observed in treated myristic acid with respect to control. TGA analysis of treated myristic acid showed less weight loss (31.33%) as compared to control sample (60.49%). This may be due to increase in thermal stability of treated myristic acid in comparison with control. FT-IR results showed increase in frequency of –CH2 and C=O stretching vibrations, probably associated with enhanced bond strength and force constant of the respective bonds. The particle size analyzer showed significant decrease in average particle size (d50 and d99) of treated myristic acid with respect to control. Overall, the results showed significant alteration in physical, spectroscopic and thermal properties of myristic acid. The enhanced crystallite size, and thermal stability of treated myristic acid showed that treated myristic acid could be used as phase change material for thermal energy storage applications. This record was migrated from the OpenDepot repository service in June, 2017 before shutting down

A bibliography of parasites and diseases of marine and freshwater fishes of India

With the increasing demand for fish as human food, aquaculture both in freshwater and salt water is rapidly developing over the world. In the developing countries, fishes are being raised as food. In many countries fish farming is a very important economic activity. The most recent branch, mariculture, has shown advances in raising fishes in brackish, estuarine and bay waters, in which marine, anadromous and catadromous fishes have successfully been grown and maintained

Propagation of Transionospheric Radio Beam Waves through a Turbulent Layer

108-113The problem of trans ionospheric radio waves propagating through a turbulent layer has been studied and analytical expressions for beam-wave wander and spread have been derived with the power-law spectrum of ionospheric irregularities by using phase screen model. The beam-wave spread has been found to be dependent, among other parameters, on the spectral index of the power-law spectrum. Some numerical computations have been carried out to estimate the possible beam-wave spread for SROSS

Height Distribution of Refractivity Structure Constant from Radiosonde Observations

23-27Radio refractivity structure constant C and its height distribution under varied meteorological conditions are evaluated from routine radiosonde observations. The mixing length theory in conjunction with Tatarskii's theoretical formulation permits C evaluation from mean meteorological fields. The C values so deduced are normalized to the existing turbulence conditions, obtained through an empirical relationship between thermal atmospheric stability and a parameter that characterizes turbulence

Two-wavelength microscopic speckle interferometry using colour CCD camera

Single wavelength microscopic speckle interferometry is widely used for deformation, shape and non-destructive testing (NDT) of engineering structures. However the single wavelength configuration fails to quantify the large deformation due to the overcrowding of fringes and it cannot provide shape of a specimen under test. In this paper, we discuss a two wavelength microscopic speckle interferometry using single-chip colour CCD camera for characterization of microsamples. The use of colour CCD allows simultaneous acquisition of speckle patterns at two different wavelengths and thus it makes the data acquisition as simple as single wavelength case. For the quantitative measurement, an error compensating 8-step phase shifted algorithm is used. The system allows quantification of large deformation and shape of a specimen with rough surface. The design of the system along with few experimental results on small scale rough specimens is presented.Accepted versio

One-pot microwave assisted synthesis and structural elucidation of novel ethyl 3-substituted-7-methylindolizine-1-carboxylates with larvicidal activity against Anopheles arabiensis

In the present investigation a series of novel ethyl 3-substituted-7-methylindolizine-1-carboxylates was achieved by microwave assisted one-pot method. The purity of the compounds was ascertained by HPLC and structural elucidation of the title compounds was achieved by FT-IR, NMR (1H and 13C), LC-MS and elemental analysis. One randomly selected compound from the series was further studied by single crystal X-ray method for intra and intermolecular interactions. Larvicidal properties of the characterized compounds were evaluated against Anopheles arabiensis and it was found that indolizine pharmacophore influences larvicidal activity as we can see larvicidal activity for all the analogues. The synthesized analogues (2j, 2m and 2f) were the most potent compounds based on the functional groups on the indolizine pharmacophore for larvicidal assay.Fil: Chandrashekharappa, Sandeep. Institute For Stem Cell Biology And Regenerative Medicine; IndiaFil: Venugopala, Katharigatta N.. Durban University Of Technology; SudáfricaFil: Nayak, Susanta K.. Visvesvaraya National Institute Of Technology; IndiaFil: Gleiser, Raquel M.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Garcia, Daniel Asmed. Universidad Nacional de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Kumalo, Hezekiel M.. University Of Kwazulu-Natal; SudáfricaFil: Kulkarni, Rashmi S.. Jain University; IndiaFil: Mahomoodally, Fawzi M.. University Of Mauritius; MauricioFil: Venugopala, Rashmi. University Of Kwazulu-Natal; SudáfricaFil: Mohan, Mahendra K.. Institute For Stem Cell Biology And Regenerative Medicine; IndiaFil: Odhav, Bharti. Durban University Of Technology; Sudáfric

Synthesis and characterization of pyrrolo[1,2-a]quinoline derivatives for their larvicidal activity against Anopheles arabiensis

Certain tetrahydropyrido[1,2-a]quinolines and pyrroloquinoline homologs have shown various biological activities such as antimicrobials, crop-protectings, diuretics, antioxidants, anticoagulants, and antimalarial activities. Keeping this observation in mind, we envisaged to synthesize and characterize a series of novel ethyl 1-(substituted benzoyl)-5-methylpyrrolo[1,2-a]quinoline-3-carboxylates and dimethyl 1-(substituted benzoyl)-5-methylpyrrolo[1,2-a]quinoline-2,3-dicarboxylates (2a-k). Quaternary salts of lepidine such as 1-[2-(substituted phenyl)-2-oxoethyl]-4-methylquinolin-1-ium bromide (1a-f) were obtained by stirring lepidine with different phenacyl bromides in acetone at room temperature separately. These quaternary salts of lepidine (1a-f) were then treated with electron-deficient ethyl propiolate and dimethyl-but-2-yne-dioate separately, in the presence of anhydrous K2CO3 and dimethylformamide (DMF) solvent to obtain ethyl 1-(substituted benzoyl)-5-methylpyrrolo[1,2-a]quinoline-3-carboxylates and dimethyl 1-(substituted benzoyl)-5-methylpyrrolo[1,2-a]quinoline-2,3-dicarboxylates, respectively (2a-k). The newly synthesized compounds were assessed by spectroscopic techniques to determine their structures. Based on our previous study on the similar pharmacophore, the synthesized compounds 2a-k were screened for their larvicidal activity against Anopheles arabiensis using a standard World Health Organization larvicidal assay; compounds 2b and 2e at 8.12 and 9.2 μM exhibited the highest larval mortality at 78 and 89%, respectively, when compared with the negative control acetone, and it demonstrated less activity, which was similar to the positive control, temephos. Finally, the test compound 2e at 9.2 μM, resulted in an 89% mortality rate after 48 h of exposure, followed by compound 2b at 8.12 μM with a 78% mortality rate. Compounds 2f, 2d, and 2c showed intermediate toxicity, and the mortality rate was lower than 60% for larvae exposed to any of the remaining test compounds.Fil: Uppar, Vijayakumar. Rani Channamma University; IndiaFil: Chandrashekharappa, Sandeep. National Centre For Biological Sciences; IndiaFil: Venugopala, Katharigatta N.. King Faisal University; Arabia Saudita. Durban University Of Technology; SudáfricaFil: Deb, Pran Kishore. Philadelphia University; JordaniaFil: Kar, Supratik. Jackson State University; Estados UnidosFil: Alwassil, Osama I.. King Saud Bin Abdulaziz University For Health Sciences; Arabia SauditaFil: Gleiser, Raquel M.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinar de Biología Vegetal (P). Grupo Vinculado Centro de Relevamiento y Evaluación de Recursos Agrícolas y Naturales; ArgentinaFil: Garcia, Daniel Asmed. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Química. Cátedra de Química Biológica; ArgentinaFil: Odhav, Bharti. Durban University Of Technology; SudáfricaFil: Mohan, Mahendra K.. National Centre For Biological Sciences; IndiaFil: Venugopala, Rashmi. University of KwaZulu-Natal; SudáfricaFil: Padmashali, Basavaraj. Rani Channamma University; Indi