University of Tehran Journal of Sciences, Islamic Republic of Iran 1016-1104 29 1 2018 01 30 Genetic Diversity of Marrubium Species from Zagros Region (Iran), Using Inter Simple Sequence Repeat Molecular Marker 7 19 64789 10.22059/jsciences.2018.64789 EN N. Salehi Department of Botany, Faculty of Sciences, University of Shahrekord, Shahrekord, Islamic Republic of Iran N. Kharazian Department of Botany, Faculty of Sciences, University of Shahrekord, Shahrekord, Islamic Republic of Iran B. Shiran Department of Plant Breeding, Faculty of Agriculture, University of Shahrekord, Shahrekord, Islamic Republic of Iran Journal Article 2016 12 15 This study concerns the genetic diversity and taxonomic status of Marrubium species from central and south-west of Zagros region, Iran. It is investigated by Inter-Simple Sequence Repeat analysis. A total of 68 accessions from five Marrubium species were collected from their natural habitats. Molecular analysis was approved with 17 primers, of which 12 were carried out in the reaction mixture. Moreover, a data matrix was designed to estimate genetic parameters. To determine the genetic structure and taxonomic status, analysis of molecular variance, clustering analysis with UPGMA (Unweighted Pair Group Method Average) and the Jaccard similarity coefficient were estimated using NT-SYS-pc and Gene Alex software. Supplementary morphological evidences of calyx teeth features were also provided. The results of this study revealed that both sections Marrubium, Microdonta, and Ballota aucheri displayed a high percentage of polymorphism (PP=100%). In addition, their genetic diversity (Gst=0.99), number of effective alleles (Ne=1.53) and Shannon information index (I=0.51) showed a high percentage. Notably, all of the 12 primers produced reproducible bands. Analysis of molecular variance detected low quantities of gene variation among species (18%) from which high proportion of variation presented among populations within species (82%). Based on cluster analysis, M. cuneatum, M. vulgare and M. anisodon were definitely separated. Moreover, M. crassidens and M. vulgare were closely grouped. The calyx teeth features of M. cuneatum and M. crassidens revealed high variations which is consistent with molecular results. In conclusion, high genetic diversity in Marrubium species and accessions presents a valuable genetic resource in Zagros region, Iran.

University of Tehran Journal of Sciences, Islamic Republic of Iran 1016-1104 29 1 2018 01 30 Novel Three-Step Synthesis of Imidazo[1,2-c]quinazoline-5(6H)-thione Derivatives 21 25 64790 10.22059/jsciences.2018.64790 EN S. Nahavandian Department of Chemistry, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Islamic Republic of Iran S. Allameh Department of Chemistry, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Islamic Republic of Iran Journal Article 2016 04 20 A novel synthesis of Iimidazo[1,2-c]quinazoline-5(6H)-thione framework was developed through a three-step reaction starting from benzil. The resulting (2-nitrophenyl)-4,5-diphenyl-1H-imidazole from the reaction of benzil and different 2-nitrobenzaldehyde, reduction of nitro group and then cyclization reaction with carbon disulfide (CS2). All steps were carried out under easy and user-friendly conditions in short time without using expensive catalysts or reagents.

University of Tehran Journal of Sciences, Islamic Republic of Iran 1016-1104 29 1 2018 01 30 Enhanced Oxidation of Azo Dye Using Ag-SiO2 Nanoparticle and Peroxydisulfate and Kinetic Study 27 34 64792 10.22059/jsciences.2018.64792 EN M. H. Rasoulifard Water and wastewater treatment research laboratory, Department of chemistry, Faculty of science, University of Zanjan, Zanjan, Islamic Republic of Iran N. Abbasioun Water and wastewater treatment research laboratory, Department of chemistry, Faculty of science, University of Zanjan, Zanjan, Islamic Republic of Iran L. Ghalamchi Water and wastewater treatment research laboratory, Department of chemistry, Faculty of science, University of Zanjan, Zanjan, Islamic Republic of Iran Journal Article 2016 07 24 Present work investigates the capability of oxidative treatment process in the presence of nano silver doped on silicate particles for decolorization of a widely used azo dye, C.I. Direct Blue 129 (DB129) in water samples. Solutions with initial concentration of 20 mgL-1 of dye, within the range of generic concentration in textile wastewaters, were treated under ambient conditions of initial pH of 6.7 and temperature of 25ºc. The operational parameters evaluation including dye and peroxydisulfate concentration, initial pH, nanoparticles dosage and reaction time was studied in an endeavor to reach the higher dye removal efficiency. Subsequently, a removal more than 90% of dye was attained by applying the optimal operational conditions as follow: 0.4 g of catalyst, 20 mgL-1 of dye, 5 mM of peroxydisulfate and initial pH of 6.7 in 35 min. Moreover, kinetic study for various parameters in several conditions for treatment process was investigated. Pseudo- first-order reaction rate constants were calculated for the systems. The morphology and crystal structure of Ag-SiO2 nanoparticles were characterized by means of Transmission Electron Microscope (TEM).

University of Tehran Journal of Sciences, Islamic Republic of Iran 1016-1104 29 1 2018 01 30 Chronostratigrahy of Acritarchs and Chitinozoans from upper Ordovician Strata from the Robat-e Gharabil Area, NE Alborz Mountains, Northern Khorassan Province: Stratigraphic and Paleogeographic Implications 35 51 64793 10.22059/jsciences.2018.64793 EN M. Ghavidel-Syooki Institute of Petroleum Engineering, Faculty of Engineering, University of Tehran, Tehran, Islamic Republic of Iran S. Borji Department of Geology, Faculty of Sciences, North Tehran branch, Islamic Azad University, Tehran, Islamic Republic of Iran Journal Article 2016 09 05 The Palaeozoic rock units mainly, Ghelli, Niur, Padeha, Khoshyeilagh and Mobark formations are well-exposed in the north of Robat-e Gharabil village. 116 out of 157 surface samples were analyzed to determine aged relationships of Ghelli Formation. The samples of Ghelli Formation are dominated by acritarchs (42 species belonging to 23 genera) and chitinozoans (26 species distributing among 15 genera). Two new acritarch species are introduced, consisting of Goniosphaeridium iranense n.sp., and Goniosphaeridium persianense n. sp. Based on the restricted stratigraphic range of chitinozoan species, Late Ordovician (Ashgill) age is assigned to the Ghelli Formation. On the other hand, the presence of diagnostic chitinozoan taxa in the Ghelli Formation consisting of Armoricochitina nigerica, Ancyrochitina merga, and Spinachitina oulebsiri chitinozoan biozones, suggest a clear palaeobiogeographic affinity between NE Alborz Mountain and North Gondwana Domain. The presence of some chitinozoan and acritarch taxa from the Baltic and Laurentia in Gondwanan chitinozoan biozones of the Robat-e Gharabil area suggests the existence of counter-clockwise marine currents that resulted in bringing planktonic organisms (acritarchs and chitinozoans) from lower latitudes (Baltica) to higher latitudes (Northern Gondwanan Domain) settings.

University of Tehran Journal of Sciences, Islamic Republic of Iran 1016-1104 29 1 2018 01 30 Origin of Lherzolitic Peridotites in Ab-Bid Ultramafic Complex (Hormozgan Province); Products of Mantle Metasomatism or Partial Melting Processes? 53 65 64794 10.22059/jsciences.2018.64794 EN M. Mohammadi Department of Geology, Faculty of of Sciences , University of Shahid Bahonar, Kerman, Islamic Republic of Iran H. Ahmadipour Department of Geology, Faculty of of Sciences , University of Shahid Bahonar, Kerman, Islamic Republic of Iran A. Moradian Department of Geology, Faculty of of Sciences , University of Shahid Bahonar, Kerman, Islamic Republic of Iran Journal Article 2016 10 18 Lherzolite is one of the main units in the Ab-Bid ultramafic complex from Esfandagheh-HadjiAbad coloured mélange (South of Iran). The complex contains harzburgite, dunite, lherzolite and pyroxenite dykes and the lherzolites mainly occur in the margins. In the field, lherzolites occur as weakly foliated coarse-grained peridotites with shiny pyroxene grains and cut by neumerous pyroxenitic veins. Textural features such as elongation and undoluse extinction of minerals and porphyroclastic grains indicate that the lherzolites were part of the upper mantle and experienced high P-T deformational events. Mineral chemistry data such as Cr# values in spinels (10/33-14/04) and fo contents of olivines (90/49-93/51) from the Ab-Bid lherzolites suggest that these rocks belong to the mantle. Evidences such as CaO (1/18-3/23) and MgO (39/53-43/65) contents of whole rock compositions, Cr# (10/33-14/04) and Mg# (74/20-78) values of spinels, besides textural features and REE normalized patterns show that they have past a complex petrological history. At the first stage, they have partially melted (< 10%) in an abyssal environment, then, they refertilized by ascending melts and enriched in LREE. Tectonomagmatic discrimination diagrams indicate that Ab-Bid lherzolites belong to the abyssal peridotites and their petrogenetic evolutions are similar to those from MOR type peridotites. Our data document the dependence of Esfandagheh-HadjiAbad coloured mélange to the Neotethyan oceanic lithosphere in the south of Iran.

University of Tehran Journal of Sciences, Islamic Republic of Iran 1016-1104 29 1 2018 01 30 Diagnostic Measures in Ridge Regression Model with AR(1) Errors under the Stochastic Linear Restrictions 67 78 64795 10.22059/jsciences.2018.64795 EN A. Zaherzadeh Zaherzadeh Department of Statistics, Faculty of Mathematical Sciences and Computer, Shahid Chamran University of Ahvaz, Ahvaz, Islamic Republic of Iran A. R. Rasekh Department of Statistics, Faculty of Mathematical Sciences and Computer, Shahid Chamran University of Ahvaz, Ahvaz, Islamic Republic of Iran B. Babadi Department of Statistics, Faculty of Mathematical Sciences and Computer, Shahid Chamran University of Ahvaz, Ahvaz, Islamic Republic of Iran Journal Article 2017 02 09 Outliers and influential observations have important effects on the regression analysis. The goal of this paper is to extend the mean-shift model for detecting outliers in case of ridge regression model in the presence of stochastic linear restrictions when the error terms follow by an autoregressive AR(1) process. Furthermore, extensions of measures for diagnosing influential observations are derived. A numerical example of a real data set is used to illustrate the findings. Finally, a simulation study is conducted to evaluate the performance of the proposed procedure and measures. Results of this study show the efficiency of the proposed mean-shift outlier model for the proposed model. Also, the study resulted in some findings about the behavior of suggested measures for the specified model. In fact, these measures are affected by the degree of collinearity and the size of autocorrelation.

University of Tehran Journal of Sciences, Islamic Republic of Iran 1016-1104 29 1 2018 01 30 Bistability in the Electric Current through a Quantum-Dot Capacitively Coupled to a Charge-Qubit 79 85 64796 10.22059/jsciences.2018.64796 EN S. M. Tabatabaei Department of Applied Physics, Faculty of Physics, University of Shahid Beheshti, Evin, Tehran, Islamic Republic of Iran Journal Article 2017 09 22 We investigate the electronic transport through a single-level quantum-dot which is capacitively coupled to a charge-qubit. By employing the method of nonequilibrium Green's functions, we calculate the electric current through quantum dot at finite bias voltages. The Green's functions and self-energies of the system are calculated perturbatively and self-consistently to the second order of interaction between the quantum-dot and the charge-qubit by employing the Majorana fermion representation for isospin operators of the qubit. Our results show that in the particle-hole symmetric situation, the electric current of the QD exhibits a unitary linear conductance at low bias voltage and at the higher bias voltage it has a nonlinear dependence on the bias voltage. Moreover, we find that at some appropriate parameter regimes, the current through the QD as a function of gate voltage, at a fixed bias voltage shows bistability.