Eco2: a simple index of economic-ecological deficits

A SIMPLE ALGORITHM FOR COMPUTING DETOUR INDEX OF NANOCLUSTERS

Let G be the chemical graph of a molecule. The matrix D = [dij ] is called the detour matrix of G, if dij is the length of longest path between atoms i and j. The sum of all entries above the main diagonal of D is called the detour index of G. In this paper, a new algorithm for computing the detour index of molecular graphs is presented. We apply our algorithm on copper and silver nanoclusters ...

A Simple Index of Smoking

Background: Cigarette smoking is implicated in a large number of diseases and other adverse health conditions. Among the dimensions of smoking are number of cigarettes smoked per day, duration of smoking, passive smoking, smoking of filter cigarettes, age at start, and duration elapsed since quitting by ex-smokers. The practice so far is to study most of these separately. We develop a simple in...

Ecological and Socio-ecological Economic Models

Public Deficits and Economic Growth

Within the discussion on how to implement fiscal discipline in the European Monetary Union, the adequacy of using the same fiscal rules for different MemberCountries has been challenged by some authors, calling for a temporary higher degree of fiscal flexibility in the case of small and less developed countries. We develop a model of a monetary union between two countries that may differ in (i)...

The Correlation of Human Development Index on Fertility and Mortality Rate: a Global Ecological Study

BackgroundSeveral studies have examined the relationship between Human Development Index (HDI) and various health outcomes. The aim of this study was to investigate the relationship between HDI, and infant mortality rate, mortality rate of children under one year and under 5 years, maternal mortality rate, and total fertility rate.Materials and MethodsIn this ecologic study, data on HDI, total ...