Notes on entomological boxes

Notes on the occupancy problem with infinitely many boxes: general asymptotics and power laws

Abstract: This paper collects facts about the number of occupied boxes in the classical balls-in-boxes occupancy scheme with infinitely many positive frequencies: equivalently, about the number of species represented in samples from populations with infinitely many species. We present moments of this random variable, discuss asymptotic relations among them and with related random variables, and...

Windows on Black Boxes ?

This paper provides an overview of the survey-based literature on industrial Research and Development (R&D) laboratories, beginning with the work of Edwin Mansfield. Topics covered include R&D projects, new products, and new processes; the appropriability of intellectual property; the limits of the firm in R&D; and spillovers of knowledge from other firms and universities into the laboratories....

Entomological Specimens

Entomological and Epidemiological Characteristics

The use of information on malaria vector behaviour in vector control is discussed in relation to the area of Southeast Asia comprising Cambodia, Laos, Myanmar, Thailand and Vietnam. The major vectors in the region are Anopheles dirus, An. minimus, An. maculatus and An. sundaicus, of which An. dirus is the most important. Options for vector control and the biological features of mosquitoes, whic...

On partitions of discrete boxes

We prove that any partition of an n-dimensional discrete box into nontrivial sub-boxes must consist of at least 2 sub-boxes, and consider some extensions of this theorem.