The methodology described in this article was developed to transcend the limitations of both approaches. Its goal is to use existing data to identify small areas with high levels of adolescent childbearing. The method is an active approach to identify what can be defined as “hot spots” for adolescent births, even when they are located in counties or communities where adolescent births are not c...

The publication of the human genome has elicited commentary to the effect that since fewer genes were identified than anticipated, it follows that genes are less important to human biology than anticipated. The flaws in this syllogism are explained in the context of a treatise on how genomes operate and evolve and how genes function to produce embryos and brains. Most of our most cherished huma...

We introduce a new class of holomorphic polynomials extending the classical Gould–Hopper to two complex variables. The considered include 1-D and 2-D polyanalytic Itô–Hermite as particular cases. emphasize studying their operational representation, various generating functions, recurrence relations. also establish some special identities including multiplication, Runge addition Nielson types fo...

The kinematics of the Gould Belt is considered taking into account its orientation in space and the motions of its member stars parallel and perpendicular to the galactic plane. An analysis of Hipparcos data for these stars, complemented with published radial velocities, shows that there is a mild gradient along the galactic plane in the velocity component perpendicular to it. The maintenance o...

Stephen Jay Gould [3] studied snail fossils and worked at Harvard University [4] in Cambridge, Massachusetts during the latter half of the twentieth century. He contributed to philosophical, historical, and scientific ideas in paleontology, evolutionary theory, and developmental biology. Gould, with Niles Eldredge, proposed the theory of punctuated equilibrium, a view of evolution [5] by which ...

1. P. D. Gingerich, Science 222, 159 (1983). 2. S. J. Gould, ibid. 226, 994 (1984). 3. A. Hallam, Nature (London) 258, 493 (1975). 4. J. T. Bonner, J. Paleontol. 42 (supplement to No. 5), 1 (1968). 5. N. Eldredge and S. J. Gould, in Models in Paleobiology, T. J. M. Schopf, Ed. (Freeman, Cooper, San Francisco, 1972), p. 82; S. J. Gould, in Perspectives on Evolution, R. Milkman, Ed. (Sinaur Assoc...