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 5 (1994)
Volume 4 (1993)
Volume 3 (1992)
Volume 2 (1991)
Volume 1 (1990)
Volume 1 (1989)
1. LIFE HISTORY, BEHAVIOR AND MORPHOLOGY OF THE IMMATURE STAGES OF ENOCHRUS QUADRIPUNCTATUS HERBST IN THE LABORATORY (COLEOPTERA: HY DROPHILIDAE) 11- MORPHOLOGY
Volume 6, Issue 4 , Autumn 1995

Abstract
  The life history, behavior and morphology of the immature stages of Enochrus quadripunctatus Herbst from Iran are studied. The results of the work on the life history and behavior of this species in the immature stages and as newly-emerged adults have been presented as part I. The morphology of the ...  Read More

2. MICROBIAL CHAIN DEGRADATION OF CHOLESTEROL BY ARTHROB ACTER SIMPLEX
Volume 6, Issue 4 , Autumn 1995

Abstract
  Because of the importance of microbial metabolites of cholesterol as precursors in the synthesis of steroidal drugs, we decided to study the ability of Arthrobacter simplex to degrade cholesterol. Arthrobacter simplex cleaves the side chain of cholesterol in the presence of 2,2'-dipyridyl and produces ...  Read More

3. DNA REPLICATION AND SYNTHESIS OF DNABINDING PROTEINS IN THE CHLOROPLASTS OF A CALLUS CULTURE
Volume 6, Issue 4 , Autumn 1995

Abstract
  Continuous labelling of callus with H-thymidine results in intermittent peaks of H-DNA per chloroplast, showing synchrony of division. The increase in H-DNA could be due to several replication rounds, and the drop to successive plastid divisions without intervening DNA synthesis. The level of DNA-binding ...  Read More

4. SPECTROPHOTOMETRIC REACTION RATE METHOD FOR THE DETERMINATION OF NITRITE BY CATALYTIC ACTION ON NILE BLUE A BROMATE REACTION
Volume 6, Issue 4 , Autumn 1995

Abstract
  A kinetic method developed for the determination of ultra-trace amounts of nitrite based on its catalytic effect on the reaction between potassium bromate and Nile blue A in strongly acidic media is reported. The reaction was monitored spectrophotometrically by measuring the decrease in absorbance ...  Read More

5. LEWIS BASE ADDUCTS OF LEAD(I1) COMPOUNDS IV*, SYNTHESIS AND CRYSTAL STRUCTURES OF (DINITRATO) (1,4,8,11- TETRA- AZAANDECANE) LEAD(I1)
Volume 6, Issue 4 , Autumn 1995

Abstract
  The synthesis and single-crystal X-ray structure determination of the title compound (dinitrato) (1,4,8,11 -tetra-azaandecane) lead(II) is described. Crystals are monoclinic, P2 /ca= 10.271 (2)?,b= 13.524(4) ?,c= 11.298(6) ?,?=94.68(3),2=4,R,Rw, 0.036 and 0.041, respectively. The lead atom is eight-coordinate ...  Read More

6. NITROIMIDAZOLES XI1 [I]: SYNTHESES OF TRISUBSTITUTED PYRAZOLES AND SUBSTITUTED (1 -METHYL-5-NITRO-2- IMIDAZOLYL) PYRIMIDINONES
Volume 6, Issue 4 , Autumn 1995

Abstract
  The reaction of P-diketones 1 with phenyl hydrazine afforded 5-aryl-3-(1- methyl-5-nitro-2-imidazoly1)-1-phenylpyrazole (2) and 3-aryl-5-(1-methyl-5- nitro-2-imidazoly1) -1-phenylpyrazole (3). The reaction of diketones (1) with urea in the presence of p-toluenesulfonic acid gave 4-(or 6-)aryl-6-(or ...  Read More

7. ANALYSIS OF DEXAMETHASONE SODIUM PHOSPHATE INJECTION AND OPHTHALMIC SOLUTION BY HPLC, KINETIC INTERPRETATION AND DETERMINATION OF SHELF LIFE
Volume 6, Issue 4 , Autumn 1995

Abstract
  The use of accelerated temperature stability studies using the Arrhenius relationship is routine for estimating the stability of a drug at room temperature. Therefore, the acceleration method is used to determine the expiration date of dexamethasone aqueous formulation manufactured in Iran. A high-performance liquid ...  Read More

8. THE FRANK KINETIC MODEL FOR SPONTANEOUS CHIRAL SYMMETRY BREAKING WITH VARIABLE CONCENTRATION OF THE ACHIRAL SUBSTRATE
Volume 6, Issue 4 , Autumn 1995

Abstract
  This paper considers the possibility of spontaneous transition of aracemic mixture (composed of equal amounts of two enantiomeric species, say L and D) into a monochiral state (in which only one enantiomer, say L, is present). Transitions of this kind have been recently experimentally observed. A ...  Read More

9. ON THE SPECTRAL BEHAVIOR-OF DEUTERIO ANALOGUES OF SOME CAFtBOXYLIC ACIDS IN HEAVY WATER AND CORRELATION BETWEEN THEIR CARBONYL STRETCHING FREQUENCIES AND THEIR ACIDIC STRENGTHS AT INFINITE DILUTION
Volume 6, Issue 4 , Autumn 1995

Abstract
  Infrared spectra of some deuterio analogues of carboxylic acids in heavy water have been investigated and their spectral behavior in carbonyl stretching frequency region have been interpreted in terms of their structural behavior in aqueous solutions. It has been shown that a linear relationship exists ...  Read More

10. POTASSIUM-ARGON ANALYSIS OF DOMAL SALT BY STEPWISE DISSOLUTION
Volume 6, Issue 4 , Autumn 1995

Abstract
  Potassium-argon analysis by stqwise dissolution provides a way to measure in detail the distribution of argon isotopes and potassium in rock salt. The method can be used for salt that contains only trace amounts of potassium, because the potassium and argon in detrital silicates within the salt are ...  Read More

11. AN INVERSE PROBLEM WITH UNKNOWN RADIATION TERM
Volume 6, Issue 4 , Autumn 1995

Abstract
  In this paper, we consider an inverse problem of linear heat equation with nonlinear boundary condition. We identify the temperature and the unknown radiation tern from an overspecified condition on the boundary  Read More

12. INCLUSION RELATIONS CONCERNING WEAKLY ALMOST PERIODIC FUNCTIONS AND FUNCTIONS VANISHING AT INFINITY
Volume 6, Issue 4 , Autumn 1995

Abstract
  We consider the space of weakly almost periodic functions on a transformation semigroup (S, X , ?) and show that if X is a locally compact noncompact uniform space, and ? is a separately continuous, separately proper, and equicontinuous action of S on X, then every continuous function on X, vanishing ...  Read More

13. EXPERIMENTAL INVESTIGATION OF THE POPULATION DENSITIES OF LOWEREXCITED STATES OF NEON
Volume 6, Issue 4 , Autumn 1995

Abstract
  Many studies employing various methods have been carried out into the number densities of excited atoms in electrical discharges with inert gases [1,2,3], but the ranges of the discharge current and gas pressure is very limited in them all. In this work, the population densities of 3S, 3s' of neon ...  Read More