A consideration of the data presented in an earlier paper (GRAUBARD 1932) brings out certain facts with regard to the mechanism of crossing over in chromosome I1 of Drosophila melanogaster which may have general significance. In the previous work experiments were performed to study crossing over and interference along the entire length of the normal chromosome I1 and of the same chromosome with...

In 1991, J. E. Thomson determined completely the structure of H2(μ), the closed subspace of L2(μ) that is spanned by the polynomials, whenever μ is a compactly supported measure in the complex plane. As a consequence he was able to show that if H2(μ) = L2(μ), then every function f ∈ H2(μ) admits an analytic extension to a fixed open set Ω, thereby confirming in this context a phenomenon noted e...

The Portuguese Ministry of Education has intervened in the Technologies and Information Systems (TIS) of the educational system with a Technological Plan for Education (TPE). The TPE is the Portuguese initiative for ICT in education, and is an intervention in three axis Technology axis,

We present a search-based model of the interbank money market and monetary policy implementation. Banks are subject to reserve requirements and the central bank tenders reserves. Interbank payments redistribute holdings and banks trade with each other in a decentralized (over-the-counter) market. The central bank provides standing facilities where banks can either deposit surpluses or borrow to...

An essential component of the proof is the following lemma. LEMMA C. Given u subharmonic on F and f locally of type-Bi, let U be defined on G as the upper function of sup u(p). If U < + c, then U is f(p) =a subharmonic on G. A consequence of theorem B is that the classical theorem of Iversen may be extended to maps which are locally of type-Bl. Lemma C admits a number of applications to other p...

The overwhelming number of radio stations, both online and over the air, makes the choice of an appropriate program difficult. By profiling the program content of radio stations using Self-Organizing Maps we provide a reflection of a station’s program type and give potential listeners a visual clue for selecting radio stations. Profiles of current broadcasts indicate which program type a statio...

Materials.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parent races true-breeding.. . . . . . . . . . . . . . . . . . . . . . . . . . . Crosses of Gold and Red. . . . . . . . . . . . . . . . . . . . . . . . . . . . . The exceptional female.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nondisjunction. . . . . . . . . . . . . . . . . . . . . . ...

We investigate how diversity in individual responses to unwanted interactions affects the evolution of cooperation modeled as a 2-person prisoner's dilemma. We combine adaptive networks and evolutionary game theory, showing analytically how the coevolution of social dynamics, network dynamics, and behavioral differences benefit the entire community even though myopic individuals still act in th...

Often, several different algorithms can solve a certain practical problem. Sometimes, algorithms which are successful in solving one problem can solve other problems as well. How can we decide which of the original algorithms is the most promising – i.e., which is more probable to be able to solve other problem? In many cases, the simplest algorithms turns out to be the most successful. In this...