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 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)
2. MOLECULAR MODELING AND NMR STUDY OF HISTDINIE AND ITS ANALOGUES AS , PYRIDOXAL 5 '-PHOSPHATE DEPENDENT HISTIDINE DECARBOXYLASE INHIBITORS
Volume 9, Issue 2 , Spring 1998

Abstract
  Molecular modeling analysis of charge density and heat of fornation by PM3 method as well as C, H NMR and 2D-NMR measurements of histidine (substrate) and some of its derivatives as histidine decarboxylase inhibitors were performed. It was established that the atom, usually nitrogen, which forms ...  Read More

3. SYNTHESIS AND MAGNETIC CHARACTERIZATION OF THE COPPER(I1) DIMER DI-p- (S UB STITUTED PHENOXO) B IS- [(2,2,6,6-TETRAMETHY L HEPTANE-3 ,5- DIONATO) COPPER(II)]
Volume 9, Issue 2 , Spring 1998

Abstract
  A number of complexes in the series (Cu LL'),, where L = [(CH,),C-CO-CH-COC( CH,),]-I and L'= 3-(Me) C6H,0-, 2,6-(Di-Me)C6H30-, 4-(OH)C6H?O-, 3- (F) C6H,0-, 4-(Br)C6H40-a, nd 3,s-(Dl-Me)C6H30h- ave been prepared and theu magnetic and optical properties determined. In chloroform, the complexes exhibit ...  Read More

4. BIVPLENT METAL COMPLEXES OF SODIUM ASCORBATE
Volume 9, Issue 2 , Spring 1998

Abstract
  The mode of coordination of8 manganese(fI), cobaltm, nickel(H), copper(II), zinc(H), lead(II) and cadmium(I1) to sodium ascorbate (NaHAsc) was investigated using IR, UV-visible, AAS, elemental microanalyzer, conductivity, magnetic and 'M and I3C NMR spectroscopic studies, NaNAsc is bidentate and coordination ...  Read More

5. LEWIS BASE ADDUCTS OF LEAD(I1) COMPOUNDS VII * SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF MONONUCLEAR (DICHLORO) (1,4,10,13-TETRA-OXA-7, 16- DIAZA-CY CLOOCTADECANE) LEAD(II)
Volume 9, Issue 2 , Spring 1998

Abstract
  The reaction of PbCI, with 1,4,10,13-tetra-oxa-7, 16-diaza-cyclooctadecane (L= C H N O ) yielded colourless crystals of LPbCI . The complex crystallizes in monoclinic space group, C2/c, a = 7.90(2), b = 14.75(3) and C = 17.36(3) ?= ? 101.75(3)?, Z = 4 and R = 0.083 The coordination number around ...  Read More

6. CHARACTERIZATION OF HIGH-SILICA MORDENITE OBTAINED BY DIRECT SYNTHESIS
Volume 9, Issue 2 , Spring 1998

Abstract
  Three high-silica mordenite zeolites differing in SiO440, ratio were prepared by direct synthesis without using any template. The products Si02/A120, ratio is influenced by the starting gel composition. This ratio is increased upon ion-exchange with NH,Cl and subsequent calcination to prepare protonic ...  Read More

7. SYNTHESIS OF NOVEL HETEROCYCLIC SYSTEM 4H-IMIDAZO [ 2,l -b] PYRIDO [2,3-el [I, 3,4] THIADIGZIM
Volume 9, Issue 2 , Spring 1998

Abstract
  Diazotization of 3-amino-2-cMoro pyridine (3) in the presence of dithizone (5) gave dphenyl-2-phenylazo-4H-pyrid[o3 ,2-e] [1,3,4] thiadiazine (6). Reaction of 2- chloro-3-nitropyridine (2, G=H) with (5) dfordd 4-phenyl -2-phenylazo -4Hpyrido [2,3-el [1,3,4] thiadiazine (7). Reduction of the latter ...  Read More

8. PERFORMANCE OF AB, ALLOYS FOR HYDROGEN STORAGE AND HYDRIDE ELECTRODES
Volume 9, Issue 2 , Spring 1998

Abstract
  Two types of hydride electxodes are potential candidates to replace the Cd elecsode in NilCd batteries, One is of the A type where A is a rare earth metal or mixture thereof, and B is the transition metal. The other is commonly referred to as A type. A , type alloys with partial substitution of ...  Read More

9. THE RATIONAL CHARACTER TABLE OF SPECIAL LINEAR GROUPS
Volume 9, Issue 2 , Spring 1998

Abstract
  In this paper we will give the character table of the irreducible rational representations of G=SL (2, q) where q= , p prime, n>O, by using the character table and the Schur indices of SL(2,q).  Read More

10. AFFINE SUBGROUPS OF THE CLASSICAL GROUPS AND THEIR CHARACTER DEGREES
Volume 9, Issue 2 , Spring 1998

Abstract
  In this paper we describe how the degrees of the irreducible characters of the affine subgroups of the classical groups under consideration can be found inductively. In [4] Gow obtained certain character degrees for all of the affine subgroups of the classical groups. We apply the method of Fischer ...  Read More

11. NUMERICAL SIMULATIONS OF THE PHASE TRANSITIONS IN CLUSTERS
Volume 9, Issue 2 , Spring 1998

Abstract
  We have studied the phase transitions in atomic clusters by molecular dynamics simulation, assuming Lennard-Jones interatomic pair potential. Calculations are performed by DAP parallel computer. The results are analyzed by simulating their orientational distribution plots (dot-plot), and neutron diffraction ...  Read More

12. FISSION FRAGMENT ANGULAR ANISOTROPIES AND INERTIA PARAMETERS
Volume 9, Issue 2 , Spring 1998

Abstract
  An analysis of selected fission fragment angular distributions from helium-ion induced fission is made using an exact theoretical expression. Theoretical anisotropies obtained with the transition state model are compared with their corresponding values deduced from the statistical scission model. ...  Read More

13. POLARIZATION HYSTERESIS CURVE MEASUREMENT FOR AN Au/PZT/YBCO DEVICE BY DOUBLE PULSE TECHNIQUE
Volume 9, Issue 2 , Spring 1998

Abstract
  Polarization for Au/Pb(Zr Ti )O /YBa Cu O ferroelectric capacitor has been studied and measured by pulse method. A sequence of pulses with amplitudes varying from 0 to 10 volts in 2 volt steps is applied and a conventional polarization curve is obtained by integrating the charge flow from the polarization ...  Read More