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Search Results: 1 - 10 of 461742 matches for " Jalal A. Aliyev "
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Peculiarities of CO2 exchange in soybean genotypes contrasting in grain yield  [PDF]
Jalal A. Aliyev
Advances in Biological Chemistry (ABC) , 2012, DOI: 10.4236/abc.2012.23039
Abstract: The peculiarities of leaf carbon dioxide gas exchange in soybean genotypes grown in field over a large area and contrasting in duration of vegetation, photosynthetic traits and productivity were studied. Varietal differences in the daily and ontogenetic changes in photosynthesis and photorespiration were identified. It was established that the period of the high activity of photosynthetic apparatus in high productive soybean genotypes lasts for a longer time. The photosynthetic rate and the rate of CO2 release in light due to photorespiration are higher in high productive genotypes. A value of photorespiration in contrasting soybean genotypes constitutes about 28% - 35% of photosynthetic rate. The ratio of gross photosynthesis to photorespiration in genotypes with different productivity is constant enough during ontogenesis, indicating a direct positive correlation between gross photosynthesis and photorespiration. Therefore, contrary to conception arisen during many years on the waste-fulness of photorespiration, taking into account the versatile investigations on different aspects of photo-respiration, it was proved that photorespiration is one of the evolutionarily developed vital metabolic processes in plants and the attempts to reduce this process with the purpose of increasing the crop productivity are inconsistent.
PCR-based molecular markers linked to the leaf rust resistance gene Lr19 in different bread wheat cultivars  [PDF]
I. M. Huseynova, F. B. Guliyeva, S. M. Rustamova, Jalal A. Aliyev
Advances in Biological Chemistry (ABC) , 2013, DOI: 10.4236/abc.2013.31019
Abstract:

61 varieties of wheat collected in the gene fund of the Research Institute of Crop Husbandry were screened using SCAR-markers associated with the gene of resistance to brown leaf rust, Lr19. As a result of PCR analysis using SCS123 marker the 737 bp locus was detected in 48 genotypes. The expected fragment of the 688 bp was detected in 53 genotypes using the SCS253 marker. The results obtained using both markers indicate that the Lr19 gene is present on 7D chromosomes of 45 genotypes. The existence of the Lr19 gene has not been proven only for 5 from the 61 analyzed wheat genotypes.

Differential Responses of Antioxidative System to Soil Water Shortage in Barley (Hordeum vulgare L.) Genotypes  [PDF]
Irada Mammad Huseynova, Masma Yagubali Nasrullayeva, Samira Mahammadrahim Rustamova, Durna Rafail Aliyeva, Jalal Alirza Aliyev
Advances in Biological Chemistry (ABC) , 2014, DOI: 10.4236/abc.2014.46040
Abstract: Drought is one of the major factors limiting the yield and quality of crops in the world. The activity of antioxidative system to tolerate the drought stress is significant in plants. In the present study, the activities and isoform profiles of catalase (CАТ), ascorbate peroxidase (APX), glutathione reductase (GR), and superoxide dismutase (SOD) were analyzed in four barley genotypes grown under soil water restriction. Drought stress caused increase in the activities of CАТ and SOD in all studied genotypes, while APX activity decreased. The total GR activity increased substantially in genotypes K 2778 and St.Garabag 7 and decreased in No. 77 local and St.Pallidum 596 genotypes under conditions of severe water stress. No detectable differences were observed in the isoenzyme pattern (the appearance of a new isoenzymes and disappearance of another one) between control plants and those subjected to soil drought. However, intensification of corresponding isoforms in electrophoretic spectra was observed in stressed barley leaves relative to watered ones. The obtained results possibly suggest that antioxidant protection in barley plants under drought conditions could be attributed mainly to SOD and CAT.
Tuberculosis among COPD Patients in Guba City, Azerbaijan  [PDF]
Amir V. Aliyev, Rafig A. Chobanov
Journal of Tuberculosis Research (JTR) , 2015, DOI: 10.4236/jtr.2015.34022
Abstract: Chronic obstructive pulmonary disease (COPD) retains their relevance. It is necessary to take into account that growth in the number of patients with lung diseases. In addition, there is a growth in the number of tuberculosis patients. According to the criteria of the Ministry of Health, patients with COPD are at risk.
Obtaining the thin Semiconductive Covering Re-Se From Sulphate Electrolyte  [PDF]
E.A. Salakhova, A.M. Aliyev
Advances in Materials Physics and Chemistry (AMPC) , 2012, DOI: 10.4236/ampc.2012.24B064
Abstract: There have been investigated the kinetics and mechanism of the cathode electrodeposition of thin coverings Re-Se from the sulphate electrolyte, containing NH4ReO4, SeO2 and H2SO4. On the base of X-ray phase analysis and by the method of cyclic avometry there have been determined the content of obtained coverings, electrosettled at the various concentrations of components in electrolyte. The co-deposition process was shown to be attended by depolarization, which is due to the energy release upon the formation of the alloy.
The Phosphochlorinated Polymeric Sorbents for Sorption of Gold (III)  [PDF]
A. A. Azizov, U. I. Yaqubova, M. I. Aliyev
Open Journal of Polymer Chemistry (OJPChem) , 2016, DOI: 10.4236/ojpchem.2016.62002
Abstract: This study evaluated the simple methods to improve the sorptional capability of polymeric sorbent to gold (III) ions. The polymeric sorbents have been synthesized by a chemical modification of dithizone phosphorchlorinated PB. The structure and composition of functional polymers are studied by IR spectroscopy, X-ray fluorescence analysis, the diffusion of optical spectroscopy, scanning electron microscopy, thermogravimetric and elemental analysis. It found that the obtained sorbents had porous crosslinked structure and did not dissolve in any organic solvents, solutions of inorganic acids and alkalines. The sorption properties of the syntesized polymer sorbents onto gold (III) ion in aqueous solutions have been studied. It is found that the adsorption effect of gold makes 85% - 90% and the equilibrium sorption capacity of polymer sorbent is 137 mg/g in acidic media. In order to improve sorption efficiency of sorbents to gold ions, the non-covalent immobilization of organic sulfur containing compound to the polymer matrix was carried out. The gold embedded polymer matrix was characterized by SEM, EDX, XRD and visible absorption spectroscopy. The obtained results indicated that the polymeric sorbent contained metallic form of zero-valent gold. It was found that the average particle size of elemental gold crystals was 28.31 nm.
Photocatalytic Removal of Organic Pollutants from Industrial Wastewater Using TiO2 Catalyst  [PDF]
H. K. Khalilova, S. A. Hasanova, F. G. Aliyev
Journal of Environmental Protection (JEP) , 2018, DOI: 10.4236/jep.2018.96043
Abstract: Degradation of organic pollutants in wastewater was investigated by photocatalysis method using anatase modification of titanium-dioxide (TiO2) catalyst with different structures. Laboratory experiments were carried out with industrial wastewaters consisting of different contents of organic pollutants. Two types of TiO2 catalyst: TiO2 having a size near to nanoparticles (about 3 - 4 micron in size) and the nanostructured 15 nm sized TiO2 were used to find optimum conditions of photocatalytic degradation and removal of organic compounds from wastewater. This paper discusses the effect of various parameters on the degradation rate including the catalyst concentration, process duration as well as the catalytic effectiveness of the TiO2 particles’ size. In addition, the effect of UV and visible light sources on the degradation process was studied. The process performed with nanostructured TiO2 catalyst under visible light was very successfully allowing best degradation of organic compounds.
General Linear Boundary Value Problem for the Second-Order Integro-Differential Loaded Equation with Boundary Conditions Containing Both Nonlocal and Global Terms
M. R. Fatemi,N. A. Aliyev
Abstract and Applied Analysis , 2010, DOI: 10.1155/2010/547526
Abstract: The paper is devoted to obtaining the sufficient conditions for Fredholm property for the general boundary value problem of the second-order linear integro-differential equation. Here, the boundary conditions corresponding with the boundary value problem contain both nonlocal and global terms.
Selection of Active Modified Zeolite Catalyst and Kinetics of the Reaction of Selective Oxidative Dehydrogenation of Cyclohexane to Cyclohexadiene 1,3  [PDF]
Agadadash M. Aliyev, Zumrud A. Shabanova, Ulvi M. Najaf-Guliyev, Irada G. Melikova
Modern Research in Catalysis (MRC) , 2015, DOI: 10.4236/mrc.2015.44011
Abstract: The catalytic activity of the modified zeolites in the reaction of selective oxidative dehydrogenation of cyclohexane to cyclohexadiene-1,3 has been investigated. It has been found that, the catalyst, Cu Zn Co Cr-clinoptilolite (Cu2+—0.5%; Zn2+—0.2%; Co2+—0.1%; Cr3+—0.1%) shows the most activity in this reaction. A kinetic scheme of the mechanism of the reaction has been suggested and on the basis of this scheme, kinetic model of the process has been developed. Numerical values of the kinetic parameters were calculated.
The Process of Dispersing Bismuth Atoms into Iridium via an Intermediate Monolayer of Graphite  [PDF]
Arif Orujov, Isfandiyar Aliyev
Journal of Modern Physics (JMP) , 2016, DOI: 10.4236/jmp.2016.71011
Abstract: It is first revealed by thermodesorption spectroscopy that when bismuth atoms diffuse the indium atoms through an intermediate graphite layer, they show certain characteristic features. In the Ir (111)-C system at 1400 K < T < 1600 K, we witness the most strong form of diffusion of bismuth into iridium. It has been found that the fractions of the fluxes of intercalation equal to δ = 0.4 ± 0.05 and diffusion δBi = Ndif/N = 2.5 × 10-3 bismuth atoms in the Ir(111)-C system. The amount of intercalated and diffused bismuth depends on the electrical field, i.e., on the positive potential in the Ir(111)-C system. It has been noted that a considerable diffusion of bismuth into iridium started at 180 V and increased up to 3000 V. The activation energies for bismuth diffusion into and from iridium were calculated to be En1 = 6.05 ± 0.05 eV and E1n = 6.3 ± 0.1 eV, respectively.
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