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Wyświetlanie 1-15 z 40
Tytuł:
Mutagenic effectiveness and efficiency of gamma rays and HZ with phenotyping of induced mutations in lentil cultivars
Autorzy:
Laskar, R.M.
Khan, S.
Powiązania:
https://bibliotekanauki.pl/articles/11102.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Źródło:
International Letters of Natural Sciences; 2017, 64
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some blood biochemical changes in response to saline exposure in the fresh water fish, Notopterus notopterus (Pallas)
Autorzy:
Kavya, K.S.
Kulkarni, R.S.
Jadesh, M.
Powiązania:
https://bibliotekanauki.pl/articles/11612.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:
The changes in some blood biochemical parameters were studied in the freshwater fish N. notopterus under saline exposure for a longer period of 30 days. The blood biochemical parameters are glucose, protein, triglycerides and cholesterol. All these parameters exhibited increased level except of blood glucose which remained unchanged as observed after the termination of saline exposure. Thus it indicates that although fish survives and able to tolerate extreme saline condition as there was no mortality during the exposure period. The increase of blood biochemical parameters can be considered as a kind of saline stress response particularly on lipid derivatives.
Źródło:
International Letters of Natural Sciences; 2015, 49
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of method for extractive spectrophotometric determination of Fe(III) with 2-Hydroxy-1-Naphthalene carboxaldehyde phenyl hydrazone as an analytical reagent
Autorzy:
Ratnamala, P. S.
Lokhande, R. S.
Utkarsha, M. Ch.
Powiązania:
https://bibliotekanauki.pl/articles/411571.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Iron Spectrophotometric determination
ethyl acetate
2-Hydroxy-1-Naphthalene carboxaldehyde phenyl hydrazone
Opis:
A spectrophotometric method has been developed for the determination of Fe(III) using 2-Hydroxy-1-Naphthalene carboxaldehyde phenyl hydrazone as an extractive reagent. The reagent forms a coloured complex, which has been quantitatively extracted into ethyl acetate at pH 6. The method obeys Beer’s law over arrange from 1 to 7 ppm. The Molar absorptivity and Sandell’s sensitivity were 0.31 × 104 L mol-1cm-1 and 0.13 μg cm-2 respectively. The proposed method is very sensitive and selective. The method has been successfully applied to synthetic and commercial samples.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 9, 1; 7-12
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of method for extractive spectrophotometric determination of Cu(II) with 2-Hydroxy-1-Naphthalene carboxaldehyde phenyl hydrazone as an analytical reagent
Autorzy:
Ratnamala, P. S.
Lokhande, R. S.
Utkarsha, M. Ch.
Powiązania:
https://bibliotekanauki.pl/articles/412128.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Copper Spectrophotometric determination
n-Butanol
2-Hydroxy-1-Naphthalene carboxaldehyde phenyl hydrazine
Opis:
A spectrophotometric method has been developed for the determination of Cu(II) using 2-Hydroxy-1-Naphthalene carboxaldehyde phenyl hydrazone as an extractive reagent. The reagent forms a coloured complex, which has been quantitatively extracted into n-butanol at pH 9.2. The method obeys Beer’s law over arrange from 1 to 10 ppm. The Molar absorptivity and Sandell’s sensitivity were 0.97 × 104 L mol-1cm-1 and 0.26 μg•cm-2 respectively. The proposed method is very sensitive and selective. The method has been successfully applied to synthetic and commercial samples.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 9, 1; 1-6
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hematology and serum biochemical changes in response to change in saline concentration in fresh water fish Notopterus notopterus
Autorzy:
Kavya, K. S.
Jadesh, M.
Kulkarni, R. S.
Powiązania:
https://bibliotekanauki.pl/articles/1186746.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Fresh Water fish
Notopterus notopterus
Saline medium
hematology
Opis:
The present investigation aim was to study the hematological and serum biochemical changes under increased saline medium in the fresh water fish Notopterus notopterus. The fish was able to thrive well in higher well in higher saline medium up to 0.16%. The exposure to saline medium was for a period of one month. After the termination of exposure to saline medium, the fish blood was collected and proceeded for hematological and serum biochemical studies. The result indicates that there was no change in the blood glucose, urea, where as there was an increase in the blood protein, triglycerides and cholesterol along with hemoglobin, RBC, WBC, creatinine, enzymes like SGPT, SGOT, alkalinephosphatase. The blood electrolytes like sodium, potassium and calcium also increased in experimental fishes.
Źródło:
World Scientific News; 2016, 32; 36-47
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Behavioral characteristics of photovoltaic cell with different irradiation in Matlab/Simuling/Simscape environment
Autorzy:
Usman, H.
Lawal, S. M.
Shehu, R. S.
Powiązania:
https://bibliotekanauki.pl/articles/412229.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
photovoltaic
irradiant
temperature
V-I and P-V curves
Opis:
Photovoltaic technology is one of the fastest growing energy among the different type of renewable energies that are available for electricity generation. This is due to the availability of the natural sun rise, and the non polluted energy that is free from emission of carbon dioxide (CO2). This paper presents a typical modeling of photovoltaic cell under different irradiations level, in order to monitor the behavior of the (Voltage-Current) V-I and (Power-Voltage) P-V characteristics. The simulation of the proposed model was performed in MATLAB/SIMULINK and Simscape environment. Single diode model of the PV system was presented in the mathematical modeling of the proposed system. Simulation results of different I-V and P-V characteristics were also presented.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 17, 3; 316-326
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Utilization of industrial effluent for irrigation - pros and cons
Autorzy:
Noel, S.D.
Rajan, M.R.
Powiązania:
https://bibliotekanauki.pl/articles/11852.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:
Decreasing water level and shortage of water is being a major problem worldwide. For agriculture purpose this problem gives rise to the use of alternative sources of water. Most of these water sources are affected by the discharge waste of effluent from various types of industries like mining, textiles, chemical etc. Due to reason this effluent may contains many organic toxic substances that could have hazardous impact on human health. In addition, technological development has contributed to increase other industrial dumping that contaminates surface waters. The irregular disposal of industrial effluent has created pollution problems since this effluent is disseminated in the environment or is accumulated in sediments, aquatic organisms, and water. In this paper a solution for this global issue has been addressed and strategies have been suggested for this problem.
Źródło:
International Letters of Natural Sciences; 2015, 37
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of conventional cooking stoves in South Eastern Nigeria
Autorzy:
Bello, R.S.
Onilude, M.A.
Powiązania:
https://bibliotekanauki.pl/articles/11888.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:
Performance characterization of some selected conventional cook stoves in South Eastern Nigeria had been carried out. Three conventional cook stoves (3-stone stove, charcoal stove and sawdust stove) were selected and evaluated. Their performances were compared with those of improved stove. The results show that the time spent in cooking 1 Kg of rice/(yam) is significantly different in all the conventional stoves under test; (maximum 0.75 (0.44) kg/hr for 3-stone stove and minimum 0.61 (0.35) hr/kg for charcoal). Fuel utilization also differs for instance lesser quantity of charcoal would be required to cook the same quantity of food on the charcoal stove than the open fire stove. Also the specific fuel consumption value of charcoal stove is lesser than all other stoves. The 3-stone stove have higher specific fuel consumption values indicative of more fuel consumption but lower thermal efficiency. This indicates a poor performance when compared to other improved stoves such as kerosene stove with higher thermal efficiency of 64.38 %.
Źródło:
International Letters of Natural Sciences; 2014, 13, 2
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Green synthesis of zinc oxide nanoparticles from aqueous extracts of Sesamum indicum L. and their characterization
Autorzy:
Manokari, M.
Latha, R.
Priyadharshini, S.
Cokul, Raj M.
Beniwal, Puneet
Shekhawat, M. S.
Powiązania:
https://bibliotekanauki.pl/articles/1077277.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Biosynthesis
Characterization
Plant Extracts
Sesamum indicum
Zinc Oxide Nanoparticles
Opis:
Green synthesis of Zinc oxide nanoparticles (ZnO-NPs) is a novel and non-toxic method as compared to the hazardous conventional physical and chemical methods. Herein, we report production of ZnO-NPs for the first time using whole vegetative parts of Sesamum indicum L. The aqueous extracts of various parts of S. indicum were used to synthesize nanoparticles in this study. The synthesized nanoparticles were evaluated using UV-visible spectroscopy for confirmation and characterization. The maximum UV-visible spectral absorption peaks were observed from 293 to 296 nm wavelengths. Leaf and stem reaction mixtures exhibited the sharpest absorption peaks of all the variations at 293 nm and root at 296 nm. This study leads to the development of cost-effective ZnO-NPs synthesis with possible further exploration to serve mankind.
Źródło:
World News of Natural Sciences; 2019, 23; 200-210
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cyanobacteria and glutathione applications improve productivity, nutrient contents, and antioxidant systems of salt-stressed soybean plant
Autorzy:
Zaki, S.S.
Eman, E.E.B.
Mostafa, M.R.
Powiązania:
https://bibliotekanauki.pl/articles/11058.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Źródło:
International Letters of Natural Sciences; 2019, 76
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mitigation of salinity stress effects on growth, physio-chemical parameters and yield of snapbean (Phaseolus vulgaris L.) by exogenous application of glycine betaine
Autorzy:
Desoky, E-S.M.
Ibrahim, S.A.
Merwad, A-R.M.
Powiązania:
https://bibliotekanauki.pl/articles/11220.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Źródło:
International Letters of Natural Sciences; 2019, 76
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of Radiological Dose around a 3-MW TRIGA Mark-II Research Reactor
Autorzy:
Rahman, A. F. M. M.
Shamsuzzaman, M.
Rahman, M. S.
Uddin, K.
Yeasmin, S.
Nazmul, Haque H. M.
Akramuzzaman, M. M.
Chakraborty, S. R
Powiązania:
https://bibliotekanauki.pl/articles/412377.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
source term
release rate
TRIGA Mark-II reactor
dispersion
ingestion and deposition of radionuclide
Gaussian plume model
dose calculations
Opis:
A hypothetical accidental case of a 3-MW TRIGA Mark-II research reactor has been assumed to assess the radiological consequences due to the deposition of 137Cs and 90Sr on ground, vegetation, milk and meat. The air concentrations in sixteen cardinal directions have been estimated where the maximum concentration has been found to be at 110 m distance from the core of the reactor for all the directions. Calculated maximum doses of 137Cs, 90Sr and both 137Cs and 90Sr have been found to be within the ranges of 0.005-0.014 μSv hr–1, 0.013-0.036 μSv hr–1 and 0.018-0.05 μSv hr–1, respectively for all the directions, which are below the measured background dose limit 0.25 μSv hr–1 and also within the IAEA acceptable dose rate limit of 0.5 μSv hr–1. The calculated low doses due to the aforementioned radionuclides can be considered negligible with regard to the radiation hazards. The relationship between total effective dose rate for various pathways (i.e. immersion, inhalation, ground deposition, and ingestion of contaminated vegetation, milk, meat) and air concentration in all the directions has been established. Obtained relation reveals that the total effective dose rate is directly proportional to the air concentration, and the overall proportionality constants for 137Cs and 90Sr radionuclides have been obtained as 0.57 and 0.28, respectively. This study might provide information on the radiological safety required for the radiation protection purposes of the people living in the vicinity of the reactor site.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 10, 2; 183-200
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Correlation between Optical and Structural Properties of Chemically deposited CdS Thin Films
Autorzy:
Mohammed, R. Y.
Abduol, S.
Mousa, A. M.
Powiązania:
https://bibliotekanauki.pl/articles/411521.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
cadmium sulfide
chemical bath deposition
CdS films
XRD
Opis:
Polycrystalline Cadmium sulfide (CdS) films were deposited onto Corning glass substrates from alkaline solutions containing CdCl2, KOH, Na3C6H5O7 and CS(NH2)2 at different deposition times (10, 20, 30, 40 and 50 min), different bath temperatures and different concentration of the reactants. A comparative study was performed out on thin film via optical transmission and X-ray diffraction (XRD) measurements which reveal that the deposition time has a profound influence on the growth rate and band gap of the deposited layers. Diffraction data are used to evaluate the lattice parameter, grain size, average strain, number of crystallites per unit area and dislocation density in the film are calculated.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 11, 2; 146-158
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Solubility of a pharmacological intermediate drug Isatin in different solvents at various temperatures
Autorzy:
Baluja, S.
Bhalodia, R.
Bhatt, M.
Vekariya, N.
Gajera, R.
Powiązania:
https://bibliotekanauki.pl/articles/412531.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Isatin
solubility
Thermodynamic parameters
Opis:
The solubility of isatin in different solvents was studied by a gravimetrical method from (298.15 to 318.15) K under atmospheric pressure and the solubility data were correlated against temperature. The solvents selected for the present study are: water, methanol, ethanol, 1-butanol, dichloromethane, dichloroethane, chloroform and carbon tetra chloride. Among chlorinated solvents, solubility is observed to be maximum in 1, 2-dichloroethane and minimum in dichloromethane whereas in alcohols, maximum solubility is observed in methanol. In water, solubility is found to be minimum. Further, some thermodynamic parameters such as Gibb’s energy (ΔGsol), heat of solution (ΔHsol) and entropy of solution (ΔSsol) have also been evaluated.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 12; 36-46
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A GIS-Based Analysis of Temporal Changes of Land Use Pattern in Batticaloa MC, Sri Lanka from 1980 to 2018
Autorzy:
Mathanraj, S.
Ratnayake, R. M. K.
Rajendram, K.
Powiązania:
https://bibliotekanauki.pl/articles/1046562.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Barren land
Land use changes
Planning
Temporal pattern
Opis:
Batticaloa MC, one of the fastest-growing cities in Sri Lanka, is the most vital agglomeration that should concentrate upon temporal changes in land use. Various land use categories, namely commercial, residential, agricultural, scrubland, mangroves, water and barren land in Batticaloa, have been modified by the different purposes of utilization. This study aims to identify the land-use changes of Batticaloa Municipal Council from 1980 to 2018. Primary and secondary data collection methods were used to gather the data for analysis. Comparison was made to the various land use categories in 1980, 1990, 2000, 2010 and 2018. The temporal pattern of land-use change was presented via a comparison of the five-time periods of land use. ArcGIS 10.4.1 and MS Excel 2013 were applied to analyse the maps and data. The finding of the study was that between 1980 and 2018, there were significant land-use changes in the study area. Commercial and residential areas increased by 20.17 ha and 1148.57 ha, respectively, and barren land and agricultural land lost 769.54 ha and 301.99 ha, respectively. In addition, rest land use categories were converted into other land use categories during these periods. The effects of human activities are immediate and often radical, while the natural effects are relatively long. The recommendations are to enforce future land use planning, and protect forest resources through land-use strategies by way of the government with community participation encouraging the approval of urban planners to make decisions about urban development.
Źródło:
World Scientific News; 2019, 137; 210-228
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 40

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