Sexualidade na doença crónica e na deficiência física

A conjugação da doença e deficiência com a sexualidade resulta numa rede de conflitualidades que tendem a gerar turbulência no envolvimento sexua

Approaches to Compute Workflow Complexity

During the last 20 years, complexity has been an interesting topic that has been investigated in many fields of science, such as biology, neurology, software engineering, chemistry, psychology, and economy. A survey of the various approaches to understand complexity has lead sometimes to a measurable quantity with a rigorous but narrow definition and other times as merely an ad hoc label. In this paper we investigate the complexity concept to avoid a vague use of the term `complexity\u27 in workflow designs. We present several complexity metrics that have been used for a number of years in adjacent fields of science and explain how they can be adapted and use to evaluate the complexity of workflows

Indefinite theta functions and black hole partition functions

We explore various aspects of supersymmetric black hole partition functions in four-dimensional toroidally compactified heterotic string theory. These functions suffer from divergences owing to the hyperbolic nature of the charge lattice in this theory, which prevents them from having well-defined modular transformation properties. In order to rectify this, we regularize these functions by converting the divergent series into indefinite theta functions, thereby obtaining fully regulated single-centered black hole partitions functions.Comment: 35 pages; v2: various comments added; v3: a few typos correcte

THE DETERMINANTS OF FOREIGN DIRECT INVESTMENT IN DEVELOPING COUNTRIES

The objective of this study is to shed light on the determinants of foreign direct investiment (FDI) in developing countries. In order to undertake it, we performe a econometric model based in panel data analysis for 38 developing countries (including transition economies) for the 1975-2000 period. Among the major conclusions we have that the FDI is correlated to level of schooling, economy's degree of openness, risk and variables related to macroeconomic performance like inflation, risk and average rate of economic growth. The results also show that the FDI has been closely associated with stock market performance. Lastly, a causality test between FDI and GDP is performed. There is evidence of the existence of causality in sense that GDP leading to FDI, but not vice versa.