In order to support research on school effectiveness, there is a need for valid and reliable instruments assess policymaking capacities of schools. Increasingly, seen as shared responsibility the entire pedagogical team school. this article, data were analysed from sample 1,696 (care) teachers coordinators principals 77 Flemish primary schools critical aspects concerning validity reliability Po...

Increasing demand for high-performance 4G broadband wireless is done by the use of multiple antennas at both sides transmitting and receiving. Multiple antenna technologies allow high capacities suited for Internet and multimedia services, and also increase range and reliability of communication systems. Orthogonal frequency-division multiplexing (OFDM) is a popular method for high-data-rate wi...

This paper aims to characterize the low signal-to-noise ratio (SNR) capacity of generalized fading channels. The work was performed during my graduation internship at King Abdullah University and Science and Technology. The multiple-input multiple-output (MIMO) Rayleigh fading channel and the single-input single-output (SISO) Log-normal shadowing channel are successively considered. General exp...

We consider capacities and games whose value v(S) depend on the organization of N \ S, this organization being represented by a partition. Hence we deal with capacities and games depending on two arguments: a subset (coalition) S and a partition π containing S. We call embedded coalition any such pair (S, π). We first provide a suitable structure for the set of embedded coalitions, study its pr...

We introduce a measure of entropy for any discrete Choquet capacity and we interpret it in the setting of aggregation by the Choquet integral.

To decrease total system cost and improve efficiency, in future mobile communication systems, we can implement a structure of multiple cells covering an area. This is often referred to as a Hierarchical Cell Structure, HCS. We compare five methods of sharing the scarce radio resources in a two layer HCS: I) DS-CDMA in macro cells and TDMA in micro cells, II) TDMA in macro cells and DS-CDMA in m...

Still little is known about naturally occurring synaptogenesis in the adult neocortex and related impacts of epigenetic influences. We therefore investigated (pre)synaptic plasticity in various cortices of adult rodents, visualized by secondary lysosome accumulations (LA) in remodeling axon terminals. Twenty-two male gerbils from either enriched (ER) or impoverished rearing (IR) were used for q...

Despite some scepticism, cross-layer optimization has largely been accepted as an indispensable part of protocol design for wireless networks. In this respect, generalized network utility maximization (GNUM) has become a widely employed systematic approach for understanding the interconnections between layers and designing efficient cross-layer protocols. In this paper we adopt the GNUM approac...