RIFOLI U M pratense L. is a highly self-incompatible species. An oppositional Tsystem of incompatibility has been established in this species by WILLIAMS and SILOW (1933). Artificially induced autopolyploids have been produced by LEVAN (1948) and FRANDSEN (1948) and selections have been carried out for several generations to improve their fertility. But no work has been done to study the effect...

Erythroblastosis fetalis is a severe hemolytic disease in the newborn that originates in utero because of a maternal-fetal blood incompatibility. An unusual case of erythroblastosis fetalis caused by an irregular antibody of the Kell blood group is presented. The dental findings are compared to those found with Rh(D) incompatibility.

A case report of discolored anterior primary teeth is presented. Medical history and clinical findings suggest an etiology of hemolytic anemia and jaundice secondary to ABO blood group incompatibility. There are no previous reports of tooth discoloration resulting from ABO blood group incompatibility.

Rh incompatibility [4] occurs when a pregnant woman whose blood type is Rh-negative is exposed to Rh-positive blood from her fetus [5], leading to the mother?s development of Rh antibodies. These antibodies have the potential to cross the placenta [6] and attach to fetal red blood cells, resulting in hemolysis, or destruction of the fetus?s red blood cells. This causes the fetus [5] to become a...

Rh incompatibility [4] occurs when a pregnant woman whose blood type is Rh-negative is exposed to Rh-positive blood from her fetus [5], leading to the mother?s development of Rh antibodies. These antibodies have the potential to cross the placenta [6] and attach to fetal red blood cells, resulting in hemolysis, or destruction of the fetus?s red blood cells. This causes the fetus [5] to become a...

A ctin depolymerization is a death trigger for poppy pollen, according to Thomas et al. (page 221), that prevents self-fertilization. Some plants prefer not to be fertilized by pollen grains that are genetically similar to themselves. These plants express self-incompatibility (S) proteins. A match between the pistil’s S-proteins and the pollen’s S-allele triggers a rapid calcium infl ux, actin ...

Rh incompatibility [4] occurs when a pregnant woman whose blood type is Rh-negative is exposed to Rh-positive blood from her fetus [5], leading to the mother?s development of Rh antibodies. These antibodies have the potential to cross the placenta [6] and attach to fetal red blood cells, resulting in hemolysis, or destruction of the fetus?s red blood cells. This causes the fetus [5] to become a...

As a new software licensing model, software-as-a-service (SaaS) is gaining tremendous popularity across the globe. In this study, we investigate the competition between a new entrant and an incumbent in a SaaS market, and derive the optimal market entry strategy for the new entrant. One interesting finding is that, when its product quality is significantly lower than that of the incumbent, the ...

The suppression of protoplasmic incompatibility resulting from nonallelic gene interactions has been obtained by the coupled effect of mutations in the modA and modB genes (Bernet 1971). Due to their female sterility, modA modB strains provide an experimental tool to determine whether or not the mod and incompatibility loci are involved in a function other than protoplasmic incompatibility. Pre...