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 4 (1993)
Volume 3 (1992)
Volume 2 (1991)
Volume 1 (1990)
Volume 1 (1989)
1. SHOOT REGENERATION FROM PROTOPLASTS OF PENNISETUM AMERICANUM L (MIL CEREAL)
Volume 5, Issue 1 , Spring 1994

Abstract
  A finely dispersed cell suspension was obtained from embryogenic calli of two genotypes of pearl millet (Pennisetum americanum L. Mil cereal). Protoplasts isolated from both cell suspensions divided and produced globular embryoids and calli. On an agar medium, the embryoids were induced to form albino ...  Read More

2. THERMODYNAMIC STUDIES ON THE INTERACTION BETWEEN DODECYL TRIMETHYL AMMONIUM BROMIDE AND HISTONE H A
Volume 5, Issue 1 , Spring 1994

Abstract
  The thermodynamic parameters of interaction between calf thymus histone H A and dodecyl trimethyl ammonium bromide (DTAB), a cationic surfactant, in aqueous solutions of pH 3.2, 6.4 and 10.0 were measured over a wide range of DTAB concentrations by equilibrium dialysis at 27°C and 37°C and are discussed. ...  Read More

3. A MODEL FOR THE BASIC HELIX- LOOPHELIX MOTIF AND ITS SEQUENCE SPECIFIC RECOGNITION OF DNA
Volume 5, Issue 1 , Spring 1994

Abstract
  A three dimensional model of the basic Helix-Loop-Helix motif and its sequence specific recognition of DNA is described. The basic-helix I is modeled as a continuous ?-helix because no ?-helix breaking residue is found between the basic region and the first helix. When the basic region of the two peptide ...  Read More

4. A STUDY OF THE ANTHELMINTIC ACTIVITY OF AQUEOUS EXTRACT OF PLEUROTUS ERYNGII ON SYPHACIA OBVELATA AND HYMENOLEPIS NANA
Volume 5, Issue 1 , Spring 1994

Abstract
  Pleurotus eryngii is a mushroom growing in the Bakhtiari province of Iran and is known as a mountain fungus. The fresh fungus is used as a food, and when dried its powder has been used as an anthelmintic drug. We decided to study the anthelmintic activity of P. eryngii on Hymenolepis nana (cestode) ...  Read More

5. AN NMR STUDY OF IONIC SOLVATION OF ALKALINE EARTH CATIONS WITH DIMETHYLSULFOXIDE IN NITROMETHANE SOLUTION
Volume 5, Issue 1 , Spring 1994

Abstract
  A proton NMR method for the determination of the solvation numbers of alkaline earth cations with dimethylsulfoxide (DMSO) in nitromethane as diluent is described. The method is based on the monitoring of the resonance frequency of DMSO protons as a function of DMSO to metal ion mole ratio while ...  Read More

6. REACTION OF QUINONEIMINES WITH KETENES
Volume 5, Issue 1 , Spring 1994

Abstract
  The reactivity of quinoneimines towards ketene and diphenylketene was examined. N-Phenylbenzoquinoneirnines (I), (2) and also N-phenylnaphthoquinoneimine react with ketene to give the spiro-adducts (5), (7) and (1 1) respectively. These adducts were stable even after prolonged heating in high boiling solvent. ...  Read More

7. GAS-PHASE ACIDITY OF SOME CARBOXYLIC ACIDS CALCULATED BY MNDO
Volume 5, Issue 1 , Spring 1994

Abstract
  Gas-phase acidities of 15 aliphatic carboxylic acids, X CH -,COOH, have been calculated using the MNDO method. Among the substituted groups exist the electron donor alkyl groups and electron acceptor halogens. The average error in acidity is within the experimental uncertainty of the data. Systematic errors ...  Read More

8. A NOVEL METHOD FOR SYNTHESIS OF NAPHTHOFURANS AND NAPHTHODIFURANS
Volume 5, Issue 1 , Spring 1994

Abstract
  Thermal rearrangement of propargyl naphthyl ethers produced naphthopyrans. In the presence of sodium methoxide, propargyl naphthyl ethers were converted easily to naphthofurans and naphthodifurans in good yields  Read More

9. THE KINETICS OF HYDROLYSIS OF TRANS-DIFLUOROTETRAMMINECHROMIUM (111) ION IN VARIOUS CONCENTRATED ACID SOLUTIONS
Volume 5, Issue 1 , Spring 1994

Abstract
  The rate of hydrolysis of trans -[Cr(NH ) F ] was obtained as a function of acid concentsation in perchloric, sulfuric and nitric acid at 3Q°C. The results have been analyzed by the treatment of Bunnett and Olsen. Values of the parameter ?in Olsen equation are consistent with the participation ...  Read More

10. MODELING THE STOCHASTIC BEHAVIOR OF THE FARS RIVERS
Volume 5, Issue 1 , Spring 1994

Abstract
  Historical records for rivers in Fars Province are inadequate in comparison with the design period of hydraulic structures. In this study, time series techniques are applied to the records of three Iranian rivers in the Fars Province in order to generate forecast values of the mean monthly river flows. ...  Read More

11. BATCH TRANSFERRING IN PRODUCTIONINVENTORY SYSTEMS
Volume 5, Issue 1 , Spring 1994

Abstract
  In most production-inventory systems, the products are transferred from the production centre to the inventory (warehouse) in subbatchs rather than one at a time. In this paper, mathematical models of such systems for both deterministic and stochastic cases of demand are developed and analysed. Comparison ...  Read More

12. IDEAL J *-ALGEBRAS
Volume 5, Issue 1 , Spring 1994

Abstract
  A C *-algebra A is called an ideal C * -algebra (or equally a dual algebra) if it is an ideal in its bidual A**. M.C.F. Berglund proved that subalgebras and quotients of ideal C*-algebras are also ideal C*-algebras, that a commutative C *-algebra A is an ideal C *-algebra if and only if it is isomorphicto ...  Read More

13. KINETIC STUDY OF TRR CORE IN FUEL CONVERSION FROM HEU TO LEU
Volume 5, Issue 1 , Spring 1994

Abstract
  In the conversion of fuel in the Tehran Research Reactor core from Highly- Enriched Uraniutn to Low-Enriched Uranium fuel neutronics analysis, thermal hydraulic calculations and kinetic performance of the core have to be studied. In this study, static and dynamic core performance for HEU and LEU fuels were ...  Read More