Volume 31 (2020)
Volume 30 (2019)
Volume 29 (2018)
Volume 28 (2017)
Volume 27 (2016)
Volume 26 (2015)
Volume 25 (2014)
Volume 24 (2013)
Volume 23 (2012)
Volume 22 (2011)
Volume 21 (2010)
Volume 20 (2009)
Volume 19 (2008)
Volume 18 (2007)
Volume 17 (2006)
Volume 16 (2005)
Volume 15 (2004)
Volume 14 (2003)
Volume 13 (2002)
Volume 12 (2001)
Volume 11 (2000)
Volume 10 (1999)
Volume 9 (1998)
Volume 8 (1997)
Volume 7 (1996)
Volume 6 (1995)
Volume 5 (1994)
Volume 4 (1993)
Volume 3 (1992)
Volume 2 (1991)
Volume 1 (1990)
Volume 1 (1989)
chemistry
1. Synthesis and DFT calculation of a new series of enaminones based on 3-amino coumarin

Alireza Foroumadi; Pegah Nouraie; Shahram Moradi Dehaghi

Articles in Press, Accepted Manuscript, Available Online from 09 June 2020

http://dx.doi.org/10.22059/jsciences.2020.284918.1007425

Abstract
  In this paper, the synthesis of various enaminones from the reaction of 3-aminocoumarin and ethyl-2,4-dioxo-4-arylbutanoate in the presence of p-toluene sulfonic acid was reported. The reaction was examined under different solvents and catalytic systems, which clearly proved the importance of acidic ...  Read More

chemistry
2. Kinetic Modelling of Methanol to Propylene Process On Cerium-hierarchical SAPO-34 Catalyst

masoumeh ghalbi-ahangary; Ali Taheri; Parviz Rashidi-Ranjbar; Zahra Taheri

Articles in Press, Accepted Manuscript, Available Online from 09 June 2020

http://dx.doi.org/10.22059/jsciences.2020.297076.1007496

Abstract
  In this paper, a new lumped kinetic model for methanol to propylene process (MTP) over Cerium-Hierarchical SAPO-34 catalyst was developed based on data obtained from a micro catalytic reactor in the temperature range of 390–450°C and at atmospheric pressure, using appropriate reaction network. The ...  Read More

chemistry
3. Can Marine Products Improve Alzheimer’s Disease: a review

Hamid-Reza Adhami; Paria Sharafi

Articles in Press, Accepted Manuscript, Available Online from 09 June 2020

http://dx.doi.org/10.22059/jsciences.2020.298061.1007502

Abstract
  Alzheimer's disease is an irreversible chronic neurodegenerative disease which is the most common cause of dementia among older adults. According to amyloid hypothesis, cholin neurotransmitters have important roles in CNS memory function, therefore cholinesterase inhibitors can improve the Alzheimer's ...  Read More

chemistry
4. Determination of the Second Virial Coefficient for Binary Mixtures of Ar with CH4 and CO using Van der Waals and Dieterici Models

Mohsen Najafi; Elham Marzbanpour

Volume 30, Issue 4 , Autumn 2019, , Pages 325-330

http://dx.doi.org/10.22059/jsciences.2019.275928.1007372

Abstract
  In this paper, we calculate the second virial coefficient for binary mixtures of Ar with CH4 and CO in order to evaluate the performance of equations of state (EOSs). The investigated EOSs are van der Waals (vdW), Redlich-Kwong (RK), Peng-Robinson (PR), Carnahan-Starling–van der Waals (CS-vdW) ...  Read More

chemistry
5. A Developed Electromembrane Technique Based on Flat Electrospun Membrane Coupled with Gas-chromatography for the Determination of Phthalates in Different Water Samples

Afsaneh Mollahosseini; Mahsa Konh

Volume 30, Issue 4 , Autumn 2019, , Pages 315-323

http://dx.doi.org/10.22059/jsciences.2019.272310.1007352

Abstract
  In this work, we successfully developed electromembrane extraction via preparation of an electrospun flat membrane based on device. The polyurethane-membrane was prepared by electrospinning method and used in EME. Affecting parameters on membrane preparation were optimized by Taguchi design. The developed ...  Read More

chemistry
6. Electropolymerization of Glycine at Carbon Paste Electrode and its Application for the Determination of Methyl Orange

C. Raril; J.G. Manjunatha

Volume 30, Issue 3 , Summer 2019, , Pages 233-240

http://dx.doi.org/10.22059/jsciences.2019.267743.1007328

Abstract
  A recently constructed polyglycine modified carbon paste electrode (PGMCPE) was employed to evaluate the electrochemical behavior of methyl orange (MO). The developed electrode was characterized by FESEM to understand the morphology of the modified electrode and bare carbon paste electrode (BCPE). The ...  Read More

chemistry
7. Role of Hydrogen Transfer and Ionic Bonding on RR, SS and RS Medetomidine Conglomerates/Acids Stability: A Theoretical Study

Vahid Zarei; Nabi Javadi; Zainal Ghahramani; Hossein Fakhraian

Volume 30, Issue 3 , Summer 2019, , Pages 241-250

http://dx.doi.org/10.22059/jsciences.2019.256301.1007248

Abstract
  This study focuses on RR, SS and RS medetomidine (MM) and inclusion of several achiral acids to distinguish which acid can help conglomerate formation instead of crystallizating racemic mixtures by defining the low-lying energy of their structures. Favorable orientation of acids was determined in interaction ...  Read More

chemistry
8. Synthesis and Application of Bis[1,2-(4-aryl-2-alkyl-1H- inden-1-yl)]Ethane as an Efficient`Ligand for Preparation of Olefin Polymerization Catalysts

v. Lotfi; B. Emamgholi; S. T. Bahrami; E. poorakbar

Volume 30, Issue 2 , Spring 2019, , Pages 135-142

http://dx.doi.org/10.22059/jsciences.2019.71749

Abstract
  In this study, a class of bis-1,2-(4-aryl-2-alkyl-1H- inden-1-yl) ethane was synthesized and characterized by spectroscopic methods such as 1HNMR, 13CNMR, melting point and FTIR. bis-1,2-(4-aryl-2-alkyl-1H- inden-1-yl) ethane was synthesized by the reaction of butyl­lithium, arylindenes and dibromoethane ...  Read More

Biology
9. SHOX2 and WT1 Promoter Methylation Correlates with the Lung Cancer in Iranian Patients

Mohammad taghi khatibi; shahla Mohammad Ganji; Somayeh Chavoshei; Arda Kiani; Seyed Mostafa Hosseini; Mahmoud Tavallaie

Volume 30, Issue 2 , Spring 2019, , Pages 113-122

http://dx.doi.org/10.22059/jsciences.2019.71747

Abstract
  Lung cancer is among the most common cause of cancer death in the world. Since the disease is diagnosed in the middle or late stages of the cancer development a more efficient method for an early diagnosis of the disease is required. The main goal of this study was to investigate the correlation between ...  Read More

chemistry
10. The Chemoselective Fischer’s Synthesis of Indolenine Derivatives By iso-Butyric Acid As A Weak Organic Acid Catalyst

sami sajjadifar; Issa Amini; Z. Navabi; Hadi Jabbari; Omidali Pouralimardan

Volume 30, Issue 2 , Spring 2019, , Pages 129-134

http://dx.doi.org/10.22059/jsciences.2019.284702.1007424

Abstract
  Iso-butyric acid as a new, simple, and expensive solvent/catalyst was successfully used for the chemoselective Fischer’s synthesis of indolenines derivatives 3a-r by one-pot condensation reaction of various phenylhydrazines 1a-e with the substituted acetophenones 2a-c at reflux conditions. In this ...  Read More

chemistry
11. Crystal Structure and Nanoparticles of Dinuclear Silver(I) Complex [Ag2(PPh3)2(μ-S-4nb-tsc)2(η1-S-4nb-tsc)2](NO3)2

Aliakbar Dehno Khalaji; Ensieh Shahsavani; Michal Dusek; Monika Kucerakova

Volume 30, Issue 2 , Spring 2019, , Pages 123-128

http://dx.doi.org/10.22059/jsciences.2019.256608.1007252

Abstract
  Nanoparticles of a new dinuclear silver(I) complex [Ag2(PPh3)2(μ-S-4nb-tsc)2(η1-S-4nb-tsc)2](NO3)2, where 4nb-tsc = 4-nitrobenzylidenethiosemicarbazone and PPh3 = triphenylphosphine, were prepared in an ultrasonic bath and characterized by FT-IR and SEM. The crystal structure of a suitable single ...  Read More

chemistry
12. Silica Boron Sulfonic Acid as Heterogeneous and Highly Efficient Solid Acid Catalyst For the Preparation of Hantzsch 1,4-dihydropyridines Under Solvent-Free

sami sajjadifar; Pegah Masoudi

Volume 30, Issue 1 , Winter 2019, , Pages 33-40

http://dx.doi.org/10.22059/jsciences.2019.69630

Abstract
  Silica boron sulfonic acid [SiO2–B(OSO3H)3] as an inexpensive, reusable, and Lewis and Brønsted acid catalyst was successfully synthesized, and used for the one-pot three-components synthesis of biologically active substituted Hantzsch 1,4-dihydropyridine derivatives  in the absence ...  Read More

chemistry
13. Effect of Calcination Rate on Performance of Co-precipitated Cu-MgO Catalyst in Hydrogenation of Furfural

Mohammad Ghashghaee; Samira Shirvani; Vahid Farzaneh; Samahe Sadjadi

Volume 30, Issue 1 , Winter 2019, , Pages 13-21

http://dx.doi.org/10.22059/jsciences.2019.69628

Abstract
  Co-precipitated Cu-MgO catalysts were prepared and evaluated for the gas-phase hydrogenation of furfural. The effect of heating rate at the calcination step was studied by comparing the performance of three catalysts prepared via the same procedure but calcined at different heating rates. The results ...  Read More

chemistry
14. A Crystallization-Induced Asymmetric Transformation using Racemic Phenyl Alanine Methyl Ester Derivatives as Versatile Precursors to Prepare Amino Acids

Samira Rahmani-Nezhad; Shima Dianat; Abbas Hadjiakhoondi

Volume 30, Issue 1 , Winter 2019, , Pages 23-31

http://dx.doi.org/10.22059/jsciences.2019.69629

Abstract
  L-Tyrosine and L-Dopa are the precursors in the biological synthesis of amine neurotransmitters. On the other hand, phenylalanine as an aromatic amino acid (AAA) is a precursor in the synthesis of L-Tyrosine and L-Dopa. For some substrates such as amino acids, resolution by the formation of diastereomers ...  Read More

Biology
15. Biodecaffeination by Pseudomonas pseudoalcaligenes TPS8, an Isolated Strain from Tea Plantation Soil

morahem Ashengroph; Sajad Ababaf

Volume 24, Issue 4 , Autumn 2013, , Pages 305-312

Abstract
  Development of an environmental friendly and cost-effective process for microbial degradation of caffeine to non-toxic compounds are promising to solve the problems of physiochemical extraction of caffeine in the treatment the caffeine containing agro-industrial effluents. Thirteen bacterial strains, ...  Read More