let h be a separable hilbert space and let b be the set of bessel sequences in h. by using several interesting results in operator theory we study some topological properties of frames and riesz bases by constructing a banach space structure on b. the convergence of a sequence of elements in b is de_ned and we determine whether important properties of the sequence is preserved under the con...

Diversity of commentators' opinions about explanation of polytheism along with the claim that verse 221 of  Al-Baqara is obsolete and discusses the subject of avoiding marriage with polytheists, has added to the difficulty of understanding this verse. According to the prevalent attitude among the Fariqain commentators about this problem, there is no problem regarding marrying the people of the ...

the aim of this paper is eliminating cr(vi) by natural hap. hap is a inexpensive material which is used from bovine critical bone ash in order to remove heavy metal ions like cr(vi). some experiments in different ph are performed (ph=2,3,7). maximum adsorption was appeared at ph=2, dosage=0.3 gr, c0=10 mg/l. cr(vi) removal depends on ph value and initial amount of cr(vi) result of experiments w...

All commentators have known all Qur'anic cases of the word salih as referring to salah in practice and viewed one doing any deed of salah as salih. Some commentators, however, regarding some Quranic cases of salih that describes prophets as salih as well as the demand of some prophet of God to put them among salihan, have known salih as being a particular position, that is essential salah not b...

Among the verses of the holy Quran which are all illumination, some verses are remarkably prominent, enlighten other verses, and closely correspond to other verses. Understanding such verses is only possible by making use of the Quran-through-Quran interpretation method. “Tafsir al-Mizan”, which is one of the most efficient interpretations of the present age, has managed to greatly illuminate t...

assigning premium to the insurance contract in iran mostly has based on some old rules have been authorized by government, in such a situation predicting premium by analyzing database and it’s characteristics will be definitely such a big mistake. therefore the most beneficial information one can gathered from these data is the amount of loss happens during one contract to predicting insurance ...

some new water-soluble schiff base complexes of na2[m(5-so3-1,2-salophen)].nh2o; (5-so3-1,2-salophen = n,n’-bis(5-sulphosalicyliden)-1,2-phenylendiamine); na2[m(5-so3-2,3-salpyr)(h2o)n].2h2o; (5-so3-2,3-salpyr = n,n’-bis(5-sulphosalicyliden)-2,3-diaminopyridine); and na2[m(5-so3-3,4-salbenz)(h2o)n].nh2o; (5-so3-3,4-salbenz = n,n’-bis(5-sulphosalicyliden)-3,4-diaminobenzophenon); where m = cu, n...

The comment of the concept of "hukm bi ghayri ma anzalallah" in verse " wa man lam yahkum bima anzalallah fa ula`ika humu `lkafirun" by all Fariqain commentators differs greatly with that of Takfiri Salafists with regard to the concept and extension both.Most Sunni commentators, restricting the concept of "hukm bi ghayri ma anzalallah" viewed kufr as what understood in Fiqh. It should be pointe...

What is meant by anfal in Quran, its ownership and the abrogation of anfal verse is a position of disagreement between Shiite and Sunni`s commentators. As is clearly understood by the first verse of chapter Anfal, anfal has been known as one of the great financial sources for Islamic government. Some commentators have viewed the verse to be in contradiction with the verse of khums and, therefor...