Results 311 to 320 of about 2,139,028 (342)
Some of the next articles are maybe not open access.
Chemical Reviews, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Marcus, Y., Hefter, G.
openaire +2 more sources
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Marcus, Y., Hefter, G.
openaire +2 more sources
The Mathematical Gazette, 1995
Most of us who teach “complex numbers” (especially to classes where the emphasis is primarily mathematical) take the opportunity at some stage to place the theory firmly on the concept of ordered pair (of real numbers), assuring the students that they have long been familiar with this notion (
openaire +2 more sources
Most of us who teach “complex numbers” (especially to classes where the emphasis is primarily mathematical) take the opportunity at some stage to place the theory firmly on the concept of ordered pair (of real numbers), assuring the students that they have long been familiar with this notion (
openaire +2 more sources
Canadian Journal of Mathematics, 1977
The search for new radicals goes on. Recently R. L. Snider ([6], see page 216) introduced the following notion. Let α and β be any two radicals. A ring R will be said to be an (α : β) ring if for any ideal A of R, we have α (R/A) ≧ β (R/A).
Divinsky, N., Suliński, A.
openaire +2 more sources
The search for new radicals goes on. Recently R. L. Snider ([6], see page 216) introduced the following notion. Let α and β be any two radicals. A ring R will be said to be an (α : β) ring if for any ideal A of R, we have α (R/A) ≧ β (R/A).
Divinsky, N., Suliński, A.
openaire +2 more sources
Journal of Mathematical Biology, 2011
A multitype pair formation model for a one-sex population, without separation, with given type distribution of singles, produces a distribution of pairs with the given type distribution as a marginal distribution. The pair distribution can be seen as a nonnegative symmetric matrix.
openaire +3 more sources
A multitype pair formation model for a one-sex population, without separation, with given type distribution of singles, produces a distribution of pairs with the given type distribution as a marginal distribution. The pair distribution can be seen as a nonnegative symmetric matrix.
openaire +3 more sources
International Journal of Algebra and Computation, 2010
For a finite semigroup S and pseudovariety V, (Y, T) is a V-stable pair of S iff Y ⊆ S, T ≤ S and for any relational morphism R : S ⇝ V with V ∈ V there exists a v ∈ V such that Y ⊆ R-1(v) and T ≤ R-1( Stab (v)). X ≤ S is stable if it is generated by an [Formula: see text]-chain {ai} with aiaj = ai for j < i. Given a relation R : S ⇝ A ∈ A (where A
openaire +1 more source
For a finite semigroup S and pseudovariety V, (Y, T) is a V-stable pair of S iff Y ⊆ S, T ≤ S and for any relational morphism R : S ⇝ V with V ∈ V there exists a v ∈ V such that Y ⊆ R-1(v) and T ≤ R-1( Stab (v)). X ≤ S is stable if it is generated by an [Formula: see text]-chain {ai} with aiaj = ai for j < i. Given a relation R : S ⇝ A ∈ A (where A
openaire +1 more source
Pair clustering and giant pairing resonances
Physical Review C, 1985Giant pairing resonances, i.e., collective two-particle excitations built upon high-lying single-particle states, are studied in the lead region. Two-particle 0/sup +/ states (T = 1) outside the /sup 208/Pb core are found to be clustered in the nuclear surface.
, Herzog, , Liotta, , Sibanda
openaire +2 more sources
Bulletin of the London Mathematical Society, 2005
The study of tilting modules has the origin in the theory of finitely generated modules over finite dimensional algebras. It was initiated by \textit{S. Brenner} and \textit{M. C. R. Butler} [Lect. Notes Math. 832, 103-169 (1980; Zbl 0446.16031)], \textit{D. Happel} and \textit{C. M. Ringel} [Trans. Am. Math. Soc.
BAZZONI, SILVANA, P. EKLOF, J. TRLIFAJ
openaire +2 more sources
The study of tilting modules has the origin in the theory of finitely generated modules over finite dimensional algebras. It was initiated by \textit{S. Brenner} and \textit{M. C. R. Butler} [Lect. Notes Math. 832, 103-169 (1980; Zbl 0446.16031)], \textit{D. Happel} and \textit{C. M. Ringel} [Trans. Am. Math. Soc.
BAZZONI, SILVANA, P. EKLOF, J. TRLIFAJ
openaire +2 more sources
Pair 2 learning = pair programming × pair teaching
Proceedings of the Seventeenth Western Canadian Conference on Computing Education, 2012Pair programming is a frequently cited method for retaining students and improving student learning in introductory Computer Science courses. When pair programming is employed early in the curriculum, students work together to learn to program more effectively and also enjoy the programming process more than when working alone.
Nicole Anderson, Tim Gegg-Harrison
openaire +1 more source
To pair or not to pair: chromosome pairing and evolution
Current Opinion in Plant Biology, 1998Chromosome pairing in wild-type wheat closely resembles the process in both yeast and Drosophila. The recent characterisation of a mutant Ph1 wheat and the observation that chromosome pairing in the absence of Ph1 more closely resembles that of mammals and maize has shed light on the evolution of chromosome pairing in the cereals.
openaire +2 more sources
2007
The feasibility of obtaining low-cost high-quality online reinjection fluids was fi rst explored almost 30 years ago, but regulatory conservatism delayed adoption of the technique for almost 20 years. Online treatments are now commonplace in Europe. The competitive advantages of this treatment modality compared to standard convective treatments include
openaire +2 more sources
The feasibility of obtaining low-cost high-quality online reinjection fluids was fi rst explored almost 30 years ago, but regulatory conservatism delayed adoption of the technique for almost 20 years. Online treatments are now commonplace in Europe. The competitive advantages of this treatment modality compared to standard convective treatments include
openaire +2 more sources