1. Understanding the ecological factors driving the burden and pathogenicity of parasites is challenging. Indeed, the dynamics of host-parasite interactions is driven by factors organized across nested hierarchical levels (e.g. hosts, localities), and indirect effects are expected owing to interactions between levels. 2. In this study, we combined Bayesian multilevel models, path analyses and a...

A “home” sharing environment consists of the data sharing relationships between family members, friends, and acquaintances. We argue that this environment, far from being simple, has sharing and trust relationships as complex as any general-purpose network. Such environments need strong access control and privacy guarantees. We show that avoiding information leakage requires both to be integrat...

BACKGROUND Substance consumption (SC) begins in adolescence and has been linked to protection factors such as family relationships (FR) and positive parenting (PP). There are few studies concerning the effectiveness of prevention programs based on the family, even though assessing interventions is one of the objectives of preventive science. The aim of this study was to analyze the evidence on ...

Measurement or estimation of leaf area is essential for understanding crop responses to experimental treatments. The objective of this study was to develop regression models for estimating leaf area of field-grown cotton (Gossypium hirsutum L.) from measurements of leaf dry weight (LDW), vegetative components (stems and leaves) dry weight (VDW) and plant height (PH). Three cotton cultivars (Del...

The variance of the spatial topological relationships and how to restore these relationships by the geometric relationships between points are researched. A kind of approaching algorithm of outline curves based on messy data is presented. The test results in virtual navigating environment are also given.

the fringes areas interposed between metropolis and territorial ecosystems constitute a new sort of geography of urban sprawl. the difference between urban areas and their surroundings is at present unrecognisable.from this new context, that represent a new life environment for a large part of human population, new perceptive dynamics and new relationships emerge. various social manifestations ...