Forest ecosystem management often requires spatially explicit planning because the spatial arrangement of harvests has become a critical economic and environmental concern. Recent research on exact methods has addressed both the design and the solution of forest management problems with constraints on the clearcut size, but where simultaneously harvesting two adjacent stands in the same period ...

Models and data used to describe species-area relationships confound sampling with ecological process as they fail to acknowledge that estimates of species richness arise due to sampling. This compromises our ability to make ecological inferences from and about species-area relationships. We develop and illustrate hierarchical community models of abundance and frequency to estimate species rich...

—This paper refers only to universities (including technical universities), and none of our proposals apply to other types of institutions. —The aim of a «common framework for mathematics degrees in Europe» is to facilitate an automatic recognition of degrees in order to help mobility. —The idea of a common framework must be combined with an accreditation system. —The two components of a common...

We apply a theorem of Geronimus to derive some new formulas connecting Schur functions with orthogonal polynomials on the unit circle. The applications include the description of the associated measures and a short proof of Boyd’s result about Schur functions. We also give a simple proof for the above mentioned theorem of Geronimus. 1. Schur functions In what follows we adopt the following nota...

Let E be a separable (or the dual of a separable) symmetric function space, let M be a semifinite von Neumann algebra and let E(M) be the associated noncommutative function space. Let (εk)k≥1 be a Rademacher sequence, on some probability space Ω. For finite sequences (xk)k≥1 of E(M), we consider the Rademacher averages ∑ k εk ⊗ xk as elements of the noncommutative function space E(L(Ω)⊗M) and s...

It has been advocated that pedagogical content knowledge as well as subject matter knowledge are important in improving classroom instructions. To develop pedagogical content knowledge, it is argued that understanding of students’ mental representations of concepts is deemed necessary. Yet assessing and comparing mental model of each individual is very tedious and time consuming. This study att...

The number of company data deposited in hierarchical storage management systems heavily increases. Thus, new approaches are necessary to keep track of a data pool. This paper introduces a semantic storage extension (SSE) for existing hierarchical storage management systems that allows them to exploit semantic relations between files and use them for a more efficient and more intelligent data ma...

Introduction. One of the main factors determining interest in study scientific issues and their development is availability publications on relevant topic, consequently, existence a publication landscape that can be characterized by various scientometric indicators. At same time, bibliographic analysis domestic foreign sources showed an information gap bibliometric subject area «Health Manageme...

Section 101 cases are a particularly vexing subject for practicing patent attorneys, and are the subject of much contention and debate.1 In an effort to quell assertions of expansive, questionable patents, the Supreme Court has, in a series of landmark decisions, broadened the judicially created exclusions from patentable subject matter: abstract ideas, laws of nature, and naturally occurring s...

OBJECTIVE The sampling and recruitment methods, response rate, and cohort description for the all-African-American Jackson Heart Study (JHS) are detailed. METHODS Four subsamples of participants residing in the Jackson, Mississippi metropolitan statistical area (MSA) were included: random, volunteer, ARIC (continuing from Atherosclerosis Risk in Communities study), and family. A community-dri...