Results 11 to 20 of about 21,382 (238)
On some properties of polynomials rings
International Journal of Mathematics and Mathematical Sciences, 1987 For a commutative ring with unity R, it is proved that R is a PF-ring if and only if the annihilator, annR(a), for each a ϵ R is a pure ideal in R, Also it is proved that the polynomial ring, R[X], is a PF-ring if and only if R is a PF-ring.
H. Al-Ezeh
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Chemoenzymatic Synthesis of Indole-Containing Acyloin Derivatives
Molecules, 2023 Indole-containing acyloins are either key intermediates of many antimicrobial/antiviral natural products or building blocks in the synthesis of biologically active molecules.
Saad Alrashdi +4 more
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Beam injection with a pulsed sextupole magnet in an electron storage ring
Physical Review Special Topics. Accelerators and Beams, 2010 We have developed a new beam injection system with a single pulsed sextupole magnet (PSM) at the photon factory storage ring (PF ring) in the High Energy Accelerator Research Organization.
Hiroyuki Takaki +9 more
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PF-rings of generalised power series [PDF]
Bulletin of the Australian Mathematical Society, 1998 Let R be a commutative ring and (S, ≤) a strictly ordered monoid which satisfies the condition that 0 ≤ s for every s ∈ S. We show that the generalised power series ring [[RS ≤]] is a PF-ring if and only if R is a PF-ring.
openaire +2 more sources
ON DISTORTION OF THE MODULI OF RINGS UNDER LOCALLY QUASICONFORMAL MAPPINGS IN R^n
Проблемы анализа, 2015 Some of the earlier results of author concerning distortion of the moduli of ring domains under planar locally quasiconformal mappings are generalized on the case of locally quasiconformal mappings in Rn, n ≥ 2.
S. Yu. Graf
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Tooth bleaching guided by elab protocol
Эндодонтия Today, 2021 The aim of this report is to demonstrate simple digitally controlled tooth bleaching elab protocol. To do this we used a cross polarizing filter (polar_eyes) attached to Cannon Macro Ring Lite MR-14EX flash to get the cross pollarized picture.
D. Tsanaktsidis
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New injection scheme using a pulsed quadrupole magnet in electron storage rings
Physical Review Special Topics. Accelerators and Beams, 2007 We demonstrated a new injection scheme using a single pulsed quadrupole magnet (PQM) with no pulsed local bump at the Photon Factory Advanced Ring (PF-AR) in High Energy Accelerator Research Organization (KEK).
Kentaro Harada +3 more
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Two properties of the power series ring
International Journal of Mathematics and Mathematical Sciences, 1988 For a commutative ring with unity, A, it is proved that the power series ring A〚X〛 is a PF-ring if and only if for any two countable subsets S and T of A such that S⫅annA(T), there exists c∈annA(T) such that bc=b for all b∈S.
H. Al-Ezeh
doaj +1 more source
Saudi Journal of Anaesthesia, 2014 Background: circumcision in children is a painful procedure. We aim compare the intraoperative and postoperative efficacy of three different surgical procedures of the ring block using levobupivacaine 0.25% combined with rectal paracetamol as opposed to ...
Nick Zavras +6 more
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Exchange PF-rings and almost PP-rings
International Journal of Mathematics and Mathematical Sciences, 1989 Let R be a commutative ring with unity. In this paper, we prove that R is an almost PP–PM–ring if and only if R is an exchange PF–ring. Let X be a completely regular Hausdorff space, and let βX be the Stone Čech compactification of X.
H. Al-Ezeh
doaj +1 more source