Database design is a scheme in which database goals are defined and database alternatives are laid out, analyzed, and an alternative is selected or recommended. It implies that goals are identified and set, and a structured ...

A combination of population and income growth will more than double the demand for food and other agricultural commodities over the next half century. Advances in crop productivity during the twentieth century have largely ...

The theory of the visual display of quantitative information consists of principles that generate design options and that guide choices among options. The principles should not be applied rigidly or in a peevish spirit; ...

We study formal power series whose coefficients are taken to be a variety of number theoretic functions, such as the Euler, Möbius and divisor functions. We show that these power series are irrational over ℤ [X], and we obtain lower bounds...

The mineral hydrogrossular series (Ca₃Al₂(SiO4)₃₋ₓ(OH) ₄ₓ; 0 ≤ x ≤ 3) are important water bearing minerals found in the upper and lower part of the Earth’s mantle. They are vital to the planet’s hydrosphere under different hydrothermal conditions...

Current GISs differ according to the way they organize reality through the data model. Each model tends to fit certain types of data and applications better than others. The data model chosen for a particular project or ...

populous states that use a system of statewide textbook adoption and the five most populous states that are "open territory" comprised the state sample, while two popular elementary (K-6) textbook series and two popular middle grades (6-8) textbook series...

Presentation focusing on integrating GIS & related technologies into natural resource planning & management. It touches on angles such as sensitivity analysis, cartographic considerations, biodiversity assessment, and ...

The objective in this article is to challenge misconceptions often put forward about the technologies of biotechnology. In particular, I challenge many of the arguments put forward by Altieri and Rosset in their paper ...

In this paper, we introduce a certain combinatorial property Z*(k), which is defined for every integer k ≥ 2, and show that every set E ⊂ Z with the property Z*(k) is necessarily a noncommutative Λ (2k) set. In particular, ...