In wireless sensor networks (WSNs), resourceconstrained nodes are expected to operate in highly dynamic and often unattended environments. Hence, support for intelligent, autonomous, adaptive and distributed resource management is an essential ingredient of a middleware solution for developing scalable and dynamic WSN applications. In this article, we present a resource management framework bas...

The objective of this paper is to analyse the server utilization and delay tolerance of a patient monitoring wireless body area network (WBAN) in hospital premises. The WBAN considered in this paper uses three tier heterogeneous networking method for communication and the vital data packets are prioritized as normal and emergency packets. In network, first tier consists of ZigBee nodes, second ...

We consider a three-tier architecture for mobile and pervasive computing scenarios, consisting of a local tier of mobile nodes, a middle tier (cloudlets) of nearby computing nodes, typically located at the mobile nodes access points but characterized by a limited amount of resources, and a remote tier of distant cloud servers, which have practically infinite resources. This architecture has bee...

This study sought to examine the effects of Tier 2 intervention in a multitiered model on the performance of firstand secondgrade students who were identified as having mathematics difficulties. A regression discontinuity design was utilized. Participants included 126 (Tier 2, n = 26) first graders and 140 (Tier 2, n = 25) second graders. Tier 2 students received 15min intervention booster less...

The use of Complementary and Alternative Medicine (CAM) for physical and mental problems has increased significantly in the US over the past two decades, and depression is one of the leading indications for the use of CAM. This article reviews some of the lesser-known natural products with potential psychiatric applications that are starting to emerge with some scientific and clinical evidence ...

Considering a heterogeneous network (HetNet) system consisting of a macro tier overlaid with a second tier of small cells (SCs), this paper studies the mean square error (MSE) based precoding design to be employed by the macro base station and the SC nodes for multiple-input multipleoutput (MIMO) downlinks. First, a new sum-MSE of all users based minimization problem is proposed aiming to desig...

The paper explores the impact that modularization is having on the structure of supply chains in general and on the role of Ž rst-tier suppliers in particular. Two concepts are presented to illustrate Ž rstly the need to redeŽ ne the term ‘Ž rst-tier’ supplier and secondly to determine how and why value can be transferred within a modular supply chain. The Ž rst concept, the ‘continuum of Ž rst...