University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
13
4
2002
12
01
IMMUNOHAEMATOLOGICAL AND CYTOGENETICAL STUDIES ON HUMAN POPULATION EXPOSED TO SULFUR MUSTARD
-
31631
EN
Journal Article
1970
01
01
The patients evaluated in this study were classified into three groups of severe, moderate, and mild according to the severity of exposure to sulfur mustard. We evaluated the Immunological and Cytogenetical status of the patients after eight years of their exposure to sulfur mustard. The investigations revealed that the number of neutrophils, lymphocytes and monocytes in the patients with severe exposure were significantly different than in the normal population, while moderate and mild groups showed no significant differences. We also evaluated the DNA indices (hypo diploid, diploid & hyperploid) in the severe, moderate and mild groups comparing to normal population. The results indicate that in patients with severe exposure 22 out of 26 patients had aneuploidy, while moderate and mild groups showed no significant differences compared to the normal population. Regarding the numerical aberration rate and chromosomal breakage, our results indicated that there were no significant differences among moderate exposure, mild exposure and normal population.
University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
13
4
2002
12
01
CYTOGENETIC STUDY OF GAMMA IRRADIATED LINES OF COTTON (GOSSYPIUM HIRSUTUM L.)
-
31632
EN
Journal Article
1970
01
01
A cytogenetic study was performed on M4 generation of gamma irradiated lines of Shirpan cultivar of tetraploid cotton (Gossypium hirsutum L.). A significant difference was observed in cytogenetical characteristics such as the number and type of quadrivalents as well as percentage of cells showing abnormality among the irradiated and non irradiated lines. Cytomixis and post- pachytene diffuse stage was observed in the gamma irradiated lines, but not in the control line. There was an indication that the lines with good agronomic characters possess meiosis with a low abnormality and a higher value of alternate quadrivalents.
University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
13
4
2002
12
01
SYNTHESIS AND PHARMACOLOGICAL EVALUATION OF 6-CARBETHOXY-5-(3'-BROMOPHENYL)-3-ARYL-2-CYCLOHEXENONES AND 6-ARYL-4-(3'-BROMOPHENYL)-3-OXO-2,3A,4,5-TETRAHYDRO-2H-INDAZOLES
-
31633
EN
Journal Article
1970
01
01
6-Carbethoxy-5-(3'-bromophenyl)-3-aryl-2-cyclohexenones 2a-j were obtained from the1-Aryl-3-(3'-bromophenyl)-2-propene-1-ones 1a-j by Micheal addition of ethyl acetoacetate, followed by internal Claisen condensation. Reaction of 2a-j with hydrazine hydrate afforded the corresponding 6-Aryl-4-(3'-bromophenyl)-3-oxo-2,3a,4,5-tetrahydro-2H-indazoles 3a-j. The structures of newly synthesized compounds were established on the basis of elemental analyses, IR, NMR and Mass spectral data. The pharmacological evaluations were performed for their anticancer, antitubercular and antimicrobial activities.
University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
13
4
2002
12
01
SYN- TO POST-KINEMATIC FIBROLITE-BIOTITE INTERGROWTHS IN THE ARDARA
AUREOLE, NW IRELAND
-
31634
EN
Journal Article
1970
01
01
The relations of fibrolite-biotite are discussed by presenting data from the Ardara aureole, NW Ireland. Biotite-fibrolite intergrowths are developed in all three aureole zones including: the outer kyanite-bearing andalusite zone, the middle kyanite-free andalusite zone and the inner prismatic sillimanite zone. A strain-assisted mechanism is proposed for the fibrolitisation of biotite in the Ardara aureole. The concentration of fibrolite in zones of high non-coaxial strain, which wrap around zones of low co-axial strain, now occupied by minerals such as plagioclase (in the outer kyanite-bearing andalusite zone), andalusite (in the middle kyanite-free andalusite zone) and pods rich in biotite, quartz and plagioclase (in the inner sillimanite zone) provides strong evidence that fibrolite growth was syn-kinematic. Some textural evidence, especially from the inner sillimanite zone is consistent with continuation of fibrolite growth after ductile deformation.
University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
13
4
2002
12
01
BIOSTRATIGRAPHIC STUDY OF THE ILAM AND GURPI FORMATIONS BASED ON PLANKTONIC FORAMINIFERA IN SE OF SHIRAZ, IRAN
-
31635
EN
Journal Article
1970
01
01
The study of planktonic foraminifera of the Ilam and Gurpi formations at Sarvestan area (SE of Shiraz) enables me to find the most standard biozones defined in mediterranean regions, especially Tethysian domain. Seven biozones were determined. Biozones I (Dicarinella concavata zone) and II (Dicarinella asymetrica zone) belong to the Ilam Formation and indicate the Late Coniacian-Early Santonian and Middle-Late Santonian, respectively. Biozones III to VII were determined from the Gurpi Formation. Biozones III (Globotruncanita elevata zone), IV (Globotruncana ventricosa zone) and V (Globotruncanita calcarata zone) represent the Early, Middle and Late Campanian, respectively. Biozones VI (Globotruncanita stuarti zone ) and VII (Gansserina gansseri zone) suggest the Early and Middle Maastrichtian, respectively. In the Late Maastrichtian, due to decreasing in water depth at the study area, Abathomphalus mayaroensis zone defined in Tethysian domain, was not recognised.
University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
13
4
2002
12
01
MATRIX VALUATION PSEUDO RING (MVPR) AND AN EXTENSION THEOREM OF MATRIX VALUATION
-
31636
EN
Journal Article
1970
01
01
Let R be a ring and V be a matrix valuation on R. It is shown that, there exists a correspondence between matrix valuations on R and some special subsets ?(MVPR) of the set of all square matrices over R, analogous to the correspondence between invariant valuation rings and abelian valuation functions on a division ring. Furthermore, based on Malcolmson’s localization, an alternative proof for the following result is presented. “There exists a natural bijection between the matrix valuations on R and valuated epic R-fields.”
University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
13
4
2002
12
01
MODULE HOMOMORPHISMS ASSOCIATED WITH HYPERGROUP ALGEBRAS
-
31637
EN
Journal Article
1970
01
01
Let X be a hypergroup. In this paper, we study the homomorphisms on certain subspaces of L(X)* which are weak*-weak* continuous.
University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
13
4
2002
12
01
TOPOLOGICALLY STATIONARY LOCALLY COMPACT SEMIGROUP AND AMENABILITY
-
31638
EN
Journal Article
1970
01
01
In this paper, we investigate the concept of topological stationary for locally compact semigroups. In [4], T. Mitchell proved that a semigroup S is right stationary if and only if m(S) has a left Invariant mean. In this case, the set of values ?(f) where ? runs over all left invariant means on m(S) coincides with the set of constants in the weak* closed convex hull of right translates of f. The main purpose of this paper is to prove a topological analogue (which is also a generalization) of this theorem for locally compact semigroups.