We show that the ”puzzling” chemical composition observed in the extremely metal poor star HE0107-5240 may be naturally explained by the concurrent pollution of at least two supernovae. In the simplest possible model a supernova of quite low mass (∼ 15 M⊙), underwent a ”normal” explosion and ejected ∼ 0.06 M⊙ of Ni while a second one was massive enough (∼ 35 M⊙) to experience a strong fall back...

Laleh Samavi was born in Rasht,Iran in 1979. She received her B.Sc. (2002) and M.Sc. (2005) degrees from the university of Guilan. Presently she is working towards her Ph.D. degree under supervision of Prof. Farhad Shirini at the University of Guilan. Her research is focused on the development of synthetic rout of catalysts and their applications in organic chemistry.

Laleh Samavi was born in Rasht,Iran in 1979. She received her B.Sc. (2002) and M.Sc. (2005) degrees from the university of Guilan. Presently she is working towards her Ph.D. degree under supervision of Prof. Farhad Shirini at the University of Guilan. Her research is focused on the development of synthetic rout of catalysts and their applications in organic chemistry.

laleh samavi was born in rasht,iran in 1979. she received her b.sc. (2002) and m.sc. (2005) degrees from the university of guilan. presently she is working towards her ph.d. degree under supervision of prof. farhad shirini at the university of guilan. her research is focused on the development of synthetic rout of catalysts and their applications in organic chemistry.

an investigation on the fauna of myrmeleontidae (neuroptera) was carried out in markazi province in august 2009. identification and taxonomy was studied via examining morphological characteristics and their internal male genitalia. as a result, distoleon nuristanus hã¶lzel, 1972 is presently reporting as new for iran fauna

Component resolved diagnosis (CRD) represents an innovative and revolutionary tool in allergy diagnosis. At the same time, some criticisms can be outlined. The present web survey aimed at investigating the role of CRD in daily clinical practice, according to a sample of Italian specialists who manage allergic patients. 127 physicians, mostly allergists, completed the questionnaire, mainly comin...

The use of drugeluting stents (DES) has tackled the "Achilles' heel" of percutaneous coronary interventions (PCI) like no innovation before: the restenosis following initially successful PCI of de novo stenoses. Today, with DES, the pivotal clinical parameter TVF (target vessel failure) is in the upper single- digit range for "standard" lesions and 16% for long lesions. Numerous studies have as...