Results 21 to 30 of about 359,833 (281)

Determination of association constants between 5 '-guanosine monophosphate gel and aromatic compounds by capillary electrophoresis [PDF]

open access: yes, 2013
Hydro gel formed by 5'-guanosine monophosphate (GMP) in the presence of a potassium ion is expected to exhibit interesting selectivity in capillary electrophoretic separations.
Alberty   +32 more
core   +1 more source

Completion of the Conjecture: Quantum Cohomology of Fano Hypersurfaces

open access: yes, 1999
In this paper, we propose the formulas that compute all the rational structural constants of the quantum K\"ahler sub-ring of Fano hypersurfaces.Comment: 19pages, Latex, minor changes in English, some formulas are ...
Beauville A., MASAO JINZENJI
core   +1 more source

Chiral Rings and Anomalies in Supersymmetric Gauge Theory [PDF]

open access: yes, 2002
Motivated by recent work of Dijkgraaf and Vafa, we study anomalies and the chiral ring structure in a supersymmetric U(N) gauge theory with an adjoint chiral superfield and an arbitrary superpotential.
A. Gorsky   +21 more
core   +4 more sources

Scattering of Open and Closed Strings in 1+1 Dimensions

open access: yes, 1992
The ground ring structure of 1+1 dimensional string theory leads to an infinite set of non linear recursion relations among the `bulk' scattering amplitudes of open and closed tachyons on the disk, which fix them uniquely.
Bershadsky   +24 more
core   +2 more sources

Stereospecific four-bond phosphorus-phosphorus spin couplings in phosphazenyl-phosphazenes [PDF]

open access: yes, 1976
Four-bond phosphorus-phosphorus coupling constants have been measured from the 31P NMR spectra of phosphazenylcyclophosphazenes. Their magnitude appears to be related to the conformation adopted by the phosphazenyl-group relative to the phosphazene ...
Biddlestone, Malcolm   +4 more
core   +2 more sources

Mobi algebra as an abstraction to the unit interval and its comparison to rings [PDF]

open access: yes, 2018
We introduce a new algebraic structure, called mobi algebra, consisting of three constants and one ternary operation. The canonical example of a mobi algebra is the unit interval with the three constants 0, 1, and 1/2 and the ternary operation given by ...
Fatelo, J. P., Ferreira, Nelson Martins
core   +2 more sources

Generators of rings of constants for some diagonal derivations in polynomial rings

open access: yesJournal of Pure and Applied Algebra, 1995
Let \(K\) be a field of characteristic zero. The authors show that if \(n\geq 3\), that given \(r\geq 0\) there exists a diagonal \(K\)-derivation of \(K[x_1, \dots, x_n]\) such that the minimal number of generators over \(K\) of the ring of constants is equal to \(r\).
Nowicki, Andrzej, Strelcyn, Jean-Marie
openaire   +2 more sources

Endomorphism rings of modules over prime rings [PDF]

open access: yes, 2012
Endomorphism rings of modules appear as the center of a ring, as the fix ring of ring with group action or as the subring of constants of a derivation. This note discusses the question whether certain *-prime modules (introduced by Bican et al.) have a ...
Baziar, Mohammad, Lomp, Christian
core  

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed   +5 more
wiley   +1 more source

On the ring of constants for derivations of power series rings in two variables [PDF]

open access: yesColloquium Mathematicum, 2001
Summary: Let \(k[[x,y]]\) be the formal power series ring in two variables over a field \(k\) of characteristic zero and let \(d\) be a non-zero derivation of \(k[[x,y]]\). We prove that if \(\text{Ker}(d)\neq k\) then \(\text{Ker}(d) = \text{Ker}(\delta)\), where \(\delta\) is a Jacobian derivation of \(k[[x,y]]\).
Makar-Limanov, Leonid, Nowicki, Andrzej
openaire   +1 more source

Home - About - Disclaimer - Privacy