Background As problem substance use has a relative low prevalence and is often socially stigmatised, it is rather difficult to study health care trajectories and medication consumption among substance users. In Belgium, the Treatment Demand Indicator register (TDI) is a major information source for drug epidemiology. However, it should be considered as an incidence register as only new drug-rel...

In this paper a new pattern recognition methodology is described for the classification of the daily chronological load curves of power systems, in order to estimate their respective representative daily load profiles, which can be mainly used for load forecasting and feasibility studies of demand side management programs. It is based on pattern recognition methods, such as k-means, adaptive ve...

This paper discusses and contrasts different approaches to the construction of dynamic model> containing unobservables. It is argued that some analysis is easy IO cam out wing Dynamic Factor Analysis (DFA). a frequency domain technique, while other analysis is easier to carry clut in the context of a Dynamic Multiple Indicator-Multiple Cause Model (DYMIMIC), a time domain technique. An example ...

We consider the situation where a number of firms decide their individual capacity investment levels. The total sum of these levels determines the total return, which the firms share in proportion to their contributions. Prior to their commitments, firms may spend efforts on learning a size indicator of the market. Using this model, we can explain the over-capacity phenomenon that appeared time...

Wireless location has become one of the important technologies of wireless sensor network application. Due to the underground wireless location affected by various factors, the positioning system cannot meet the actual demand. In this paper, Time Difference of Arrival (TDOA) and Received Signal Strength Indicator (RSSI) location technologies have been investigated, then various impact factors o...

Iron (Fe) and copper (Cu) homeostasis are tightly linked across biology. Understanding crosstalk between Fe and Cu nutrition could lead to strategies for improved growth on soils with low or excess metals, with implications for agriculture and phytoremediation. Here, we show that Cu and Fe nutrition interact to increase or decrease Fe and/or Cu accumulation in leaves and Fe uptake processes. Le...

This paper aims to identify more simplified and appropriate energy performance indicators (EPIs) for residential buildings during their operational stage. The Spanish Energy Performance Certification methodology is used evaluate the rate (EPR) of a selected sample Passive House (PH) buildings. Results study indicate: all certified PH analyzed are nearly zero-energy (NZEBs) under certification s...

Over the past decade, the high-tech industry has been experiencing an unprecedented acceleration of technology innovations and rapid product introduction cycles. At the same time, the industry has been moving rapidly away from regional vertical integration toward a supply chain structure that is fundamentally global. In this paper, we describe a critical operational problem that arises in this ...

background: photoreactivation of microorganisms following uv disinfection is a disadvantage of using uv technology for wastewater treatment, since in some cases it may even reach several logarithms. the aim of this study was to evaluate the possibility of the photoreactivation of indicator bacteria (coliform and streptococci) in the irradiated effluent. methods: this study was performed using t...