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 6 (1995)
Volume 5 (1994)
Volume 4 (1993)
Volume 3 (1992)
Volume 2 (1991)
Volume 1 (1990)
Volume 1 (1989)
1. STUDY OF CHRQMOSOMES AND SOLUBLE PROTEINS OF RHMYA STRICTA DECASINE. AND NERIUM OLEANDER L.
Volume 7, Issue 4 , Autumn 1996

Abstract
  Electrophoresis of proteins, especially seed proteins, and karyological studies are useful techniques for determining species and solving the problems of modern taxonomy. The present study was carried out on two species of the Apocynaceae family, Rhazya stricta Decasine and Nerium 01eancder.L. Seed ...  Read More

2. IDENTIFICATION OF A MYCOBACTERIUM AND A BREVIBACTERIUM PRODUCING ANTIBACTERIAL SUBSTANCES
Volume 7, Issue 4 , Autumn 1996

Abstract
  Two strains, HG104 and ASSO, were isolated Crom the soil of Tehran's suburbs. Taxonomic studies showed thatHG104 and AS50 belong to Mycobacterium spp. and Brevibacterium spp. respectively, which produce antibacterial substances with relatively high activity against some important clinical Gram-positive ...  Read More

3. INTERACTION OF DNA WITH THE FOLDED AND UNFOLDED HISTONE HI IN THE PRESENCE OF SURFACE ACTIVE AGENTS
Volume 7, Issue 4 , Autumn 1996

Abstract
  Interaction between DNA and histone H, was investigated in the presence and absence of sodium-n-dodecyl sulphate (SDS) and dodecyl trimethylammonium bromide (DTAB) at temperatures of 27 and 37?C, in 2.5 mM phosphate buffer, pH 6.4 by UV spectrophotometry, equilibriumdialysis and titration. The presence ...  Read More

4. A REVISION OF THE TRIBE AELIINI (HEMIPTERA: PENTATOMIDAE: PENTATOMINAE) FROM THE INDO-PAKISTAN REGION
Volume 7, Issue 4 , Autumn 1996

Abstract
  Five genera and ten species of the tribe Aeliini Still from the Indo-Pakistan region are keyed, compared to their closest allies and their geographical distribution given. A description of all the above genera and species of Adria St?l and Bonacialus Distant has been given. These species, including ...  Read More

5. A NOVEL AND HIGHLY SENSITIVE CATALYTIC METHOD FOR THE DETERMINATION OF ULTRA TRACE AMOUNTS OF CERIUM WITH SPECTROPHOTOMETRIC DETECTION
Volume 7, Issue 4 , Autumn 1996

Abstract
  Cerium (IV) has a catalytic effect on the very slow redox reaction between gallocyanine and bromate in acidic media. The reaction was monitored spectrophotometrically at 525 nm by a fixed time method of 4.0 rnin from initiation of the reaction. The decrease in absorbance at 525 nm is proportional ...  Read More

6. GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY WITH MAlIlRIX MODIFICATION FOR DETERMINATION OF LEAD IN DRINKING WATER
Volume 7, Issue 4 , Autumn 1996

Abstract
  An amoniumvanadate plus sodium molybdate mixed modifier Graphite Furnace Atomic Absorption Spectrometric method has been developed for determination of traces of lead in drinking water. The concentration of lead in the sample is obtained by direct comparison to linear working graph prepared from aqueous ...  Read More

7. RATE CONSTANTS FUR THE ELECTRODE REACTIONS OF QUINONES IN CHLOROFORM: THE DEPENDENCE ON ELECTRODE MAmRIAL,S AND APPARENT STANDARD POENTIALS
Volume 7, Issue 4 , Autumn 1996

Abstract
  The reduction process for some quinones has been studid by cyclic voltammeby, rotating disk electrode voltammetry and chronopotentiometry in chloroform at platinum, gold and glassy carbon electrodes using tetrabutylmonium perchlorate (TB AP) as supporting eiectrolyte. The results obtained from this ...  Read More

8. SYNTHESIS AND CRYSTAL STRUCTURE OF [PPh ] [WOS (CUNCS) ]
Volume 7, Issue 4 , Autumn 1996

Abstract
  The reaction of [PPhJ, NOS,] with CuCl and KSCN (1 :3:3) in acetone produces the yell-ow crystals of [PPh,], [WOS,(CuNCS),]. The crystals are triclinic, space group P1(2), z=2, a=12.4823(7), b=12.9224(7), c=18.6395(10)?, ?=83.907(5), ?= 73.152(4), Y= 65.194(4)'. The crystal structure was determined ...  Read More

9. STUDIES OF TRANSITION METAL COMPLEXES WITH 2N-QUINOLYL- AND 2N-ISOQUINOLYL- 1,1,3,3-TETRAMETHY LGUANIDINES
Volume 7, Issue 4 , Autumn 1996

Abstract
  Ligands derived from 8-quinoline, 6-quinoline, 1 -isoquinoline, and 5-isoquinoline were synthesized. These compounds have been used as ligands for complexation of transition metals, such as copper(II) and nickel(II). According to the spectrosocopic data, copper(II) cation forms (I: 1) and (I:2) complexes ...  Read More

10. CLEAVAGE OF ESTERS AND ETHERS WITH SILICA CHLORIDE
Volume 7, Issue 4 , Autumn 1996

Abstract
  Silica chloride converted benzyl or tert-butyl esters to the corresponding acid chlorides and alkyl chlorides. It also converted benzyl or tert-butyl phenyl ethers to the corresponding allcyl chlorides and phenol  Read More

11. ALKALOIDS OF PAPAVERACEAE (XIII).' ALKALOIDS OF PAPAVER F UGAX POPULATION KHALKHAL AND PAPAVER CA UCASICUM POPULATION ELIKA
Volume 7, Issue 4 , Autumn 1996

Abstract
  Papaver fugax Poiret population Khalkhal was shown to contain four major alkaloids, roemerine (0.19%), mecamberine (0.39%), liriodenine (0.20%) and salutaridine (0.10%). Papaver caucasicum M. B. population Elika was shown to contain four major alkaloids, nuciferine (0.50%), amurensinine (0.15%), lysicamine (0.30%) ...  Read More

12. ON THE POWER FUNCTION OF THE LRT AGAINST ONE-SIDED AND TWO-SIDED ALTERNATIVES IN BIVARIATE NORMAL DISTRIBUTION
Volume 7, Issue 4 , Autumn 1996

Abstract
  This paper addresses the problem of testing simple hypotheses about the mean of a bivariate normal distribution with identity covariance matrix against restricted alternatives. The LRTs and their power functions for such types of hypotheses are derived. Furthermore, through some elementary calculus, ...  Read More

13. AMENABLE WEIGHTED HYPERGROUPS
Volume 7, Issue 4 , Autumn 1996

Abstract
  In this paper among many other things we prove that the topological left amenability and left amenability of a weighted hypergroup (K, ?) are equivalent. For a normal subgroup H of K, we define a weight function ?? on KIH and obtain connection between left amenability of (K, ?) and (K|H, ??). Let ...  Read More

14. A MODIFIED THEORY OF NEWTONIAN MECHANICS
Volume 7, Issue 4 , Autumn 1996

Abstract
  A specific form of the inertial law is presented by which we can gain a deeper insight into the essence of mass and inertia. In this modified theory, there is no need to keep the concept of absolute space and Newton's third law as principles, By introducing a convenient form for gravitational law ...  Read More

15. LOW-ENERGY-ION ENHANCED DIFFUSION AT THE SURFACE OF METALS
Volume 7, Issue 4 , Autumn 1996

Abstract
  Radiation enhanced diffusion at the surface of metals has been observed and studied for low-energy nitrogen ions at the surface of copper. The displacement of the target atoms during irradiation creates vacancies and other defects near the surface, thus enhancing the diffusion of implanted materials ...  Read More