JOURNAL OF SCIENCE (KHARAZMI UNIVERSITY)
Year:2001 | Volume:1 | Issue:1|Papers Count:7

In this research Chloroalminium and Copper Phthalocyanine (CIAIPc and CuPc) were purified twice, using entrained sublimitation techniques. Ohmic contacts were made on the samples using the electrical properties of both (CIAIPc and CuPc) were studied over a range of temperatures. The activation energies of these materials were measured using both forward and reverse current-voltage characteristic and then they were compared. It was found that CIAIPc has a lower activation energy than CuPc. Further, I found that in CIAIPc, the activation energies evaluated using forward and reverse bias differ significantly at low temperatures while in CuPc this did not occur.

Olibanum (Frankincense) is a plant resin which could be obtained from Boswellia carerii and some species of genus Boswellia.Survay in the field of Iranian and Islamic medicine customy indicating that most former and recent medicine customy philosophers believe that following consumption of Olibanum, specially during pregnancy, might increase intelligence, memory and learning abilities in the children.In the present investigation, thin layer chromatography method was used to identity plant species. The main goal of this research was to determine if Olibanum extract has any effect on learning abilities as well as memory in the next generation.Twenty wirgin Wistar rats were mated and the first day of gestation was determined by observation of vaginal plaque. The pregnant animals were divided into two experimental (n=7) and one control (n=6) groups. From day 10 of gestation to 10 day post- paturition, every five day, the peregnant rats were injected intraperitoneally of 0.2 ml of aqucou extraction of Olihanum (5% and 10% in experimental groups 1 and 2 respectively). The control rats were received equal volume of normal saline. When nevborns became two months old, randomly from each tillers, one male and one female were selected. A T-complex maze was used first to test learning abilities by counting their errors and also measuring the time of reaching the goal. To test the effects of Olibanum on long term memory. the examined animals were left free of any test for a period of 20 days. Then, they were tested again by the same maze. The results indicating that, in comparison with control animals, administration of Olibanum aqueous extraction specially 5% solution could significantly increase (p<0.001) the rate of learning abilities and long term memory as well.

In Banach algebras, the group algebra L (G) is Arens regular if and only if G is finite. In this paper, the researcher has obtained a hypergroup structure (in the sense of Dunkl) whose measure algebra has regular multiplication. The most interesting result was that if L(X) is Arens regular then the convolution is Arens regular as a bilinear map. The condition obtained gives regularity of multiplication in the hypergroup which X is not finite.

Three granitoid bodies, Shirkuh batholith, Kaffe-Abad and Ader-Bolandan are exposed in NW Yazd, Cutting across the Naiband formation. (Upper Triassic), and overlain by Cretaceous formations. Shirkuh batholith is most likely of Jurassic age. It seems to be the first and the most significant episode of magmatism in studied area which occurred in Middle Jurassic (Late Cimmerian) time. On the other hand, contact metamorphism of Cretaceous limestone arround the Kaffe-Abad and Ader-Bolandan intrusive bodies due to intrusion of granites and dioritic dikes and also the formation of various skarns indicate that the Kaffe-Abad and Ader -Bolandan intrusive bodies were emplaced during the later orogenic phases. Therefore, Shirkuh granitoid batholith has a wide range of Plutonic activity during Jurassic time, the most important episode of which has occurred in Middle Jurassic. Because of metamorphism of surrounding Cretaceous limestons, the Kaffe-Abad and Ader-Bolandan intrusive bodies are at least younger than Lower Cretaceous and it is also possible that they are Oligo- Miocene in age. Quartz, plagioclase and orthoclase are the major minerals, while garnet, biotite, pyroxene, amphibole, tourmaline, apatite, zircon, cordierite, andalusite, magnetite and hematite are found as accessory minerals in these rocks. SiO, NaO, KOand CaO content are variable in different parts of the intrusive bodies. Spider diagrams clearly demonstrate Ba, K, Rb enrichment and Ti, Sr, Nb depletion in these rocks.Geochemically, two types of granites, I and S, are recognized, S-type granites of which are more abundant in the region. Marble, skarn, Fe-Cu-Pb-Zn. mineralization and non-metalic-minerals, such as kaolinite exist as economic potentials.

In this research, the effect of water stress on the soluble sugars, starch and proteins content of two different cultivars (kaka and jam) of chickpea (Cicer arietinum) was studied.The results showed that the soluble sugars increased while starch decreased during the stress in shoot and root of both cultivars. Increasing of soluble sugars and decreasing of starch had a positive correlation with water stress. Variations of soluble sugars in two cultivars were significant, but its amount was higher in kaka than in jam. Variations of starch in two cultivars were significant too, but its amount was higher in jam than in kaka. This may suggests that kaka is more tolerant to water stress than jam.Consideration of the electrophorogram of proteins showed the changes of protein bands under drought stress.

Ahangaran lead-silver deposit is located 25 km southeast of Malayer on Malayer Arak road. The deposit is tectonically situated in Sanandej-Sirjan zone.Mineralization in Ahangaran mine occurs between sandstone and dolomite units which are expanded into dolomite unit. The host rock of the deposit is limestone which is early Cretaceous in age and apparently mineralization occurs in the same time.Ahangaran deposit has been conformed of two parts including statiform and epigenetic vein type. Studies on the minerals such as pyrrhotite, chalcopyrite, and sphalerite reveal that the veins have formed in high temperature, while the stratiform zone was formed in a low temperature sedimentary environment.Mineralogical and geological characteristics of the Ahangaran deposit indicate the deposit to be a sedimentary exhalative type and the relationships between Ag and Pb confirm this idea. As a whole it can be said that the Ahangaran deposit is a polygenetic deposit which is formed in four stages: hypogene epigenetic, hypogene syngenetic, supergene epigenetic and supergene syngenetic. Volume of normal saline. When nevborns became two months old, randomly from each litters, one male and one female were selected. A T-complex maze was used first to test learning abilities by counting their errors and also measuring the time of . reaching the goal. To test the effects of Olibanum on long term memory, the examined animals were left free of any test for a period of 20 days. Then, they were tested again by the same maze. The results indicating that, in comparison with control animals, administration of Olibanum aqueous extraction specially 5% solution could significantly increase (p<0.001) the rate of learning abilities and long term memory as well.