نتایج جستجو برای: new lines

تعداد نتایج: 2031383  

Journal: :Monthly Notices of the Royal Astronomical Society: Letters 2007

Journal: :New Zealand Journal of Geology and Geophysics 1974

Journal: :University of Pennsylvania Law Review 1987

Journal: :Monthly Notices of the Royal Astronomical Society 2023

We report the discovery of two apparently isolated stellar remnants that exhibit rotationally modulated magnetic Balmer emission, adding to emerging DAHe class white dwarf stars. While previously discovered members this show Zeeman-split triplet emission features corresponding single field strengths, these new objects significant fluctuations in their apparent strengths with variability phase. ...

Journal: :iranian journal of basic medical sciences 0
bahram letafat department of chemistry, central tehran-branch, islamic azad university, tehran, iran raheleh shakeri institute of biochemistry and biophysics, university of tehran, tehran, iran saeed emami department of medicinal chemistry and pharmaceutical sciences research center, faculty of pharmacy, mazandaran university of medical sciences, sari, iran saeedeh noushini department of medicinal chemistry, faculty of pharmacy and pharmaceutical sciences research center, tehran university of medical sciences, tehran, iran negar mohammadhosseini department of medicinal chemistry, faculty of pharmacy and pharmaceutical sciences research center, tehran university of medical sciences, tehran, iran nayyereh shirkavand department of chemistry, central tehran-branch, islamic azad university, tehran, iran

objective(s): chalcones and their rigid analogues represent an important class of small molecules having anticancer activities. therefore, in this study the synthesis and cytotoxic activity of new 3-benzylidenchroman-4-ones were described as rigid chalcone analogues.   materials and methods: the reaction of resorcinol with 3-chloropropionic acid in the presence of cf3so3h was afforded correspon...

Journal: :Archaeological and Anthropological Sciences 2018

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