Results 261 to 270 of about 698,888 (296)
Some of the next articles are maybe not open access.
Fertility and Sterility, 1978
Between July 1, 1969, and October 31, 1977, 619 patients were evaluated for infertility. Homologous insemination (AIH) was employed in 53 patients, many of whom had other contributory causes of infertility. There have been 14 single pregnancies in 11 women, including 4 spontaneous abortions, 1 ectopic pregnancy, 8 term deliveries, and 1 pregnancy in ...
W C, Nunley +2 more
openaire +2 more sources
Between July 1, 1969, and October 31, 1977, 619 patients were evaluated for infertility. Homologous insemination (AIH) was employed in 53 patients, many of whom had other contributory causes of infertility. There have been 14 single pregnancies in 11 women, including 4 spontaneous abortions, 1 ectopic pregnancy, 8 term deliveries, and 1 pregnancy in ...
W C, Nunley +2 more
openaire +2 more sources
FLOER HOMOLOGY AND INVARIANTS OF HOMOLOGY COBORDISM
International Journal of Mathematics, 1998By using surgery techniques, we compute Floer homology for certain classes of integral homology 3-spheres homology cobordant to zero. We prove that Floer homology is two-periodic for all these manifolds. Based on this fact, we introduce a new integer valued invariant of integral homology 3-spheres.
openaire +2 more sources
From Leibniz Homology to Cyclic Homology
K-Theory, 2002Given an algebra \(A\), the author constructs a natural homomorphism \(HL_{\ast+1}(A)\to HH_\ast(A)\) from Leibniz to Hochschild homology. If \(f: A\to B\) is a homorphism of algebras, the relative Leibniz homology \(HL_\ast(gl(f))\) is defined and a natural homomorphism \(HL_{\ast+1}(gl(f))\to HC_\ast(F)\) to relative cyclic homology is studied. Thus,
openaire +2 more sources
Canadian Journal of Mathematics, 1978
There have been few published results concerning the relationship between the homology groups of branched and unbranched covering spaces of knots, despite the fact that these invariants are such powerful invariants for distinguishing knot types and have long been recognised as such [8]. It is well
Hartley, Richard, Murasugi, Kunio
openaire +2 more sources
There have been few published results concerning the relationship between the homology groups of branched and unbranched covering spaces of knots, despite the fact that these invariants are such powerful invariants for distinguishing knot types and have long been recognised as such [8]. It is well
Hartley, Richard, Murasugi, Kunio
openaire +2 more sources
Cladistics, 2012
AbstractA recent review of the homology concept in cladistics is critiqued in light of the historical literature. Homology as a notion relevant to the recognition of clades remains equivalent to synapomorphy. Some symplesiomorphies are “homologies” inasmuch as they represent synapomorphies of more inclusive taxa; others are complementary character ...
Andrew V Z, Brower, Mario C C, de Pinna
openaire +2 more sources
AbstractA recent review of the homology concept in cladistics is critiqued in light of the historical literature. Homology as a notion relevant to the recognition of clades remains equivalent to synapomorphy. Some symplesiomorphies are “homologies” inasmuch as they represent synapomorphies of more inclusive taxa; others are complementary character ...
Andrew V Z, Brower, Mario C C, de Pinna
openaire +2 more sources
Cladistics, 2014
AbstractHennig (1966) recognized symplesiomorphies as homologies, and that view is logically correct under the concept of homology (homogeny) prevalent among evolutionists since 1870. Nelson and Platnick (1981) instead wanted homology to exclude symplesiomorphies for reasons that they never made clear but which certainly included opposition to Hennig ...
openaire +2 more sources
AbstractHennig (1966) recognized symplesiomorphies as homologies, and that view is logically correct under the concept of homology (homogeny) prevalent among evolutionists since 1870. Nelson and Platnick (1981) instead wanted homology to exclude symplesiomorphies for reasons that they never made clear but which certainly included opposition to Hennig ...
openaire +2 more sources
Confusing homologs as homologies: a reply to “On homology”
Cladistics, 2012David M, Williams, Malte C, Ebach
openaire +2 more sources
2015
We propose a notion of homology for directed algebraic topology, based on so-called natural systems of abelian groups, and which we call natural homology. As we show, natural homology has many desirable properties: it is invariant under isomorphisms of directed spaces, it is invariant under refinement subdivision, and it is computable on cubical ...
Jérémy Dubut +2 more
openaire +3 more sources
We propose a notion of homology for directed algebraic topology, based on so-called natural systems of abelian groups, and which we call natural homology. As we show, natural homology has many desirable properties: it is invariant under isomorphisms of directed spaces, it is invariant under refinement subdivision, and it is computable on cubical ...
Jérémy Dubut +2 more
openaire +3 more sources
American Journal of Physical Anthropology, 1978
AbstractA recently described juvenile specimen of Avahi was supposed to show that indriines have an unreplaced deciduous canine and that the indriine toothcomb was composed only of incisors. To the contrary, this specimen demonstrates quite dramatically a growth phenomenon earlier discussed: in indriines, the anteriormost of the four deciduous lower ...
openaire +2 more sources
AbstractA recently described juvenile specimen of Avahi was supposed to show that indriines have an unreplaced deciduous canine and that the indriine toothcomb was composed only of incisors. To the contrary, this specimen demonstrates quite dramatically a growth phenomenon earlier discussed: in indriines, the anteriormost of the four deciduous lower ...
openaire +2 more sources
IMPLANTS Homologous Homologous
Plastic and Reconstructive Surgery, 1977Henry Jahan, G. Thomas
openaire +1 more source