103 research outputs found
Structural, optical and magnetic properties of Er3+, Tb3+: YIG films prepared by sol-gel method
No full textStudy of two-neutron halo structure nucleus 19B and 22C via core deformation parameter at s- and p-states
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Pengaruh debt to equity ratio dan total asset turn over terhadap price to book value dengan return on asset sebagai variabel intervening
No full textPurposes - This study aims to determine and analyze the effect of Debt to Equity Ratio and Total Asset Turn Over on Value of Book Value with Return On Assets as an intervening variable on Property & Real Estate companies mentioned on the Indonesia Stock Exchange.
Methods - This study uses associative approach approach. The population used in this study are 48 Property & Real Estate companies listed on the Indonesia Stock Exchange. While the samples taken were 10 companies using purposive sampling. To obtain the data needed in this study, the author uses documentation techniques from the data published by the company on the official website of IDX www.idx.co.id. As well as annual reports owned by the company. Data analysis techniques in this study are using path analysis, classical assumption test, multiple linear regression, t test, multiple test (Sobel test), F test and coefficient of determination.
Findings - The results of this study indicate partially that the Debt to equity Ratio has a negative and significant effect on Return on Assets. Total Asset Turn Over has no significant effect and positive direction on return on Asset. Debt to Equity Ratio has no significant influence and positive direction on Price to Book Value. Total Asset Turn Over has no effect on Price to Book Value. Simultaneously there is a significant influence between Debt to Equity Ratio and Total Asset Turn Over to Price to Book Value. Return On Asset cannot mediate the influence of Debt to Equity Ratio on Price to Book Value. and Return On Asset cannot mediate the effect of Total Turnover Assets on Price to Book Value on Property & Real Estate Companies listed on the Indonesia Stock Exchange.Purposes - This study aims to determine and analyze the effect of Debt to Equity Ratio and Total Asset Turn Over on Value of Book Value with Return On Assets as an intervening variable on Property & Real Estate companies mentioned on the Indonesia Stock Exchange.
Methods - This study uses associative approach approach. The population used in this study are 48 Property & Real Estate companies listed on the Indonesia Stock Exchange. While the samples taken were 10 companies using purposive sampling. To obtain the data needed in this study, the author uses documentation techniques from the data published by the company on the official website of IDX www.idx.co.id. As well as annual reports owned by the company. Data analysis techniques in this study are using path analysis, classical assumption test, multiple linear regression, t test, multiple test (Sobel test), F test and coefficient of determination.
Findings - The results of this study indicate partially that the Debt to equity Ratio has a negative and significant effect on Return on Assets. Total Asset Turn Over has no significant effect and positive direction on return on Asset. Debt to Equity Ratio has no significant influence and positive direction on Price to Book Value. Total Asset Turn Over has no effect on Price to Book Value. Simultaneously there is a significant influence between Debt to Equity Ratio and Total Asset Turn Over to Price to Book Value. Return On Asset cannot mediate the influence of Debt to Equity Ratio on Price to Book Value. and Return On Asset cannot mediate the effect of Total Turnover Assets on Price to Book Value on Property & Real Estate Companies listed on the Indonesia Stock Exchange
Pengaruh debt to equity ratio dan total asset turn over terhadap price to book value dengan return on asset sebagai variabel intervening
No full textPurposes - This study aims to determine and analyze the effect of Debt to Equity Ratio and Total Asset Turn Over on Value of Book Value with Return On Assets as an intervening variable on Property & Real Estate companies mentioned on the Indonesia Stock Exchange.
Methods - This study uses associative approach approach. The population used in this study are 48 Property & Real Estate companies listed on the Indonesia Stock Exchange. While the samples taken were 10 companies using purposive sampling. To obtain the data needed in this study, the author uses documentation techniques from the data published by the company on the official website of IDX www.idx.co.id. As well as annual reports owned by the company. Data analysis techniques in this study are using path analysis, classical assumption test, multiple linear regression, t test, multiple test (Sobel test), F test and coefficient of determination.
Findings - The results of this study indicate partially that the Debt to equity Ratio has a negative and significant effect on Return on Assets. Total Asset Turn Over has no significant effect and positive direction on return on Asset. Debt to Equity Ratio has no significant influence and positive direction on Price to Book Value. Total Asset Turn Over has no effect on Price to Book Value. Simultaneously there is a significant influence between Debt to Equity Ratio and Total Asset Turn Over to Price to Book Value. Return On Asset cannot mediate the influence of Debt to Equity Ratio on Price to Book Value. and Return On Asset cannot mediate the effect of Total Turnover Assets on Price to Book Value on Property & Real Estate Companies listed on the Indonesia Stock Exchange.Purposes - This study aims to determine and analyze the effect of Debt to Equity Ratio and Total Asset Turn Over on Value of Book Value with Return On Assets as an intervening variable on Property & Real Estate companies mentioned on the Indonesia Stock Exchange.
Methods - This study uses associative approach approach. The population used in this study are 48 Property & Real Estate companies listed on the Indonesia Stock Exchange. While the samples taken were 10 companies using purposive sampling. To obtain the data needed in this study, the author uses documentation techniques from the data published by the company on the official website of IDX www.idx.co.id. As well as annual reports owned by the company. Data analysis techniques in this study are using path analysis, classical assumption test, multiple linear regression, t test, multiple test (Sobel test), F test and coefficient of determination.
Findings - The results of this study indicate partially that the Debt to equity Ratio has a negative and significant effect on Return on Assets. Total Asset Turn Over has no significant effect and positive direction on return on Asset. Debt to Equity Ratio has no significant influence and positive direction on Price to Book Value. Total Asset Turn Over has no effect on Price to Book Value. Simultaneously there is a significant influence between Debt to Equity Ratio and Total Asset Turn Over to Price to Book Value. Return On Asset cannot mediate the influence of Debt to Equity Ratio on Price to Book Value. and Return On Asset cannot mediate the effect of Total Turnover Assets on Price to Book Value on Property & Real Estate Companies listed on the Indonesia Stock Exchange
Vesicles and lamella: outcome of the changing formation path of a sodium N-lauroylsarcosinate hydrate/1-decanol/water system
No full textVesicles are closed bilayers that enclose a part of the continuous phase inside the core. In spherical shape, they attain the minimum free energy state. Conversely, lamella with maximum free energy remain in planer bilayer shape in the colloidal dispersion. Even with the same amphiphile concentration the colloidal structures depend on different parameters, many of these already addressed in different reports. However, the effect of mixing procedure as a formation path is unidentified. Here we reported water in 1-decanol and 1-decanol in water; these two different mixing procedures yield vesicles and lamella at the same point of the phase diagram of a sodium N-lauroylsarcosinate hydrate/1-decanol/water system. It was found that the favorable and unfavorable contact of water with the weak tertiary ammonium cation in amino-acid head-group plays the crucial role in this process. Moreover, this weak cationic property of this amphoteric surfactant can be exploited to carry DNA for gene therapy with a nontoxic system instead of cationic
Surface modification of titanium oxide nanocrystals with PEG
No full textAbstractIn this study, surface modification of titanium oxide nanocrystals has been considered. PEG was employed to make bio-conjugated TiO2 nanopowders (TNPs). On the basis of the modification process, the effect of PEG on the size and morphology of prepared samples has been evaluated. It was found that the addition stage of PEG plays a critical role in the characteristics of TiO2 nanopowders. It was shown that PEG affects sol–gel reactions and the crystallization process of the prepared titanium oxide nanoparticles. PEG must be added before starting the synthesis to get well-defined size distribution, compared to post-synthesis. However, TiO2/PEG nanoparticles synthesized by the second approach have good photocatalytic performance, and the photodecomposition test of methylene blue proves that the addition of PEG after the synthesis of TiO2 improves the photocatalytic properties of prepared TiO2 nanoparticles. This phenomenon will affect TiO2 functionality, as well
S tudies on the phase transitions and properties of tungsten (VI) oxide nanoparticles by X - Ray diffraction (XRD) and thermal analysis
No full textTungsten (VI) oxide, WO3nanoparticles were synthesized by colloidal gas aphrons(CGAs) technique.The resultant WO3nanoparticleswere characterized by thermogravimetric-differential thermal analysis (TG-DTA) and X-Ray diffraction (XRD) measurements in order to determine the phase transitions, the crystallinity and the size of theWO3nanoparticles. As a comparison, transmission electron microscope (TEM) was used to investigate the size of the WO3nanoparticles. The result from XRD and DTA show that the formation of polymorphsWO3nanoparticles have the following sequence: orthorhombic (b-WO3)®monoclinic (g-WO3) ®triclinic (d-WO3) ®monoclinic (e-WO3) with respect to the calcination temperature of 400, 500, 600 and 700°C. No diffraction peaks were found in the X-Ray diffraction measurements for the sample heat treated at 300°C (as-prepared), suggesting that an amorphous structure was obtained at this temperature whereas the crystallinity had been obtained by the other samples of theWO3nanoparticles at the calcination temperatures of 400, 500, 600 and 700°C. It is also found that the X-Ray diffraction measurements produced an average diameter of (30 ±5), (50 ±5), (150 ±10) and (200 ±10) nm at calcination temperatures of 400, 500, 600 and 700°C respectively by using Debye-Scherrer formula. The TG curve revealed that the WO3nanoparticles is purely anhydrous since the weight loss is insignificant (0.3 –1.4) % from 30 until 600°C for the WO3nanoparticles calcined at 400°C. Finally, the composition and the purity of the WO3nanoparticleshave been examined by X-Ray photoelectron spectroscopy (XPS). Theresults indicate no significant changes to the composition and the purity of the WO3nanoparticle produced due to the temperature variation
Synthesis of NiS nanoparticles using a sugar-ester nonionic water-in-oil microemulsion
No full textNickel sulfide (NiS) nanoparticles were prepared in water-in-oil (w/o) microemulsion system containing sucrose ester as the surfactants. The commercial food grade sucrose monoester (abbreviated S-1170) is a biodegradable and non-toxic surfactant, which can be adopted to form w/o microemulsion system in the presence of 1-butanol as co-solvent. The pseudo-ternary phase diagram for the inverse microemulsion region has been determined by the titration method. It was found that the studied system forms clear and homogenous microemulsion when heated to 37 °C but gradually becomes turbid at room temperature due to the phase separation. The as-prepared NiS nanoparticles were characterized by energy filter transmission electron microscopy (EFTEM), UV-VIS-NIR absorption spectroscopy and X-ray photoelectron spectroscopy (XPS). The results showed that the synthesized nanoparticles have regular shape, monodispersed and in the size range of 3-12 nm. © 2003 Elsevier B.V. All rights reserved
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