Introduction: In 2018 Sierra Leone, a country highly prone to disasters, launched its first National Emergency Medical Service (NEMS) aiming strengthen the provision of essential health services population with long-term goal creating resilient system able effectively respond and recover from emergencies. The Center for Research Training in Disaster Medicine, Humanitarian Aid, Global Health (CR...

OBJECTIVE To develop a Web-based tool (PortionSize@warenessTool) and to evaluate its effectiveness in increasing awareness of reference serving sizes and factors that may contribute to overeating in response to large portion sizes. METHODS A randomized, controlled trial (intervention, n = 167; control, n = 143) was conducted. The authors measured awareness of reference serving size and overea...

Nanoelectromechanical systems (NEMS) offer the potential to revolutionize fundamental methods employed for signal processing in today's telecommunication systems, owing to their spectral purity and the prospect of integration with existing technology. In this work we present a novel, front-end receiver topology based on a single device silicon nanoelectromechanical mixer-filter. The operation i...

Fabrication of nanoscaled transistors based on carbon nanotubes and inorganic nanowires is typically demonstrated with a “pick-and-place” or similar method which allows for fabrication of small numbers of transistors at a time. While these, and other, devices have been used to demonstrate potential applications of carbon nanotubes, these methods are not applicable to wafer scale production with...

The tribological characteristics of nanotube-based nanoelectromechanical systems (NEMS) exemplified by a gigahertz oscillator are studied. Various factors that influence the tribological properties of nanotube-based NEMS are quantitatively analyzed with the use of molecular dynamics calculations of the quality factor (Q-factor) of the gigahertz oscillator. We demonstrate that commensurability o...

Electronic readout of the motions of genuinely nanoscale mechanical devices at room temperature imposes an important challenge for the integration and application of nanoelectromechanical systems (NEMS). Here, we report the first experiments on piezoresistively transduced very high frequency Si nanowire (SiNW) resonators with on-chip electronic actuation at room temperature. We have demonstrate...

Fabrication of high quality nano-electromechanical systems (NEMS) is nowadays extremely efficient. These NEMS will be used as sensors and actuators in integrated systems. Their use, however, raises questions about their interface (actuation, detection, read out) with external detection and control systems. Their operation implies many fundamental questions related to single particle effects suc...

OBJECTIVE The aim of the study was to determine the association between dietary outcomes and the neighbourhood food environment (street network distance from home to stores) and consumer food environment (Nutrition Environment Measurement Survey-Stores (NEMS-S) audit). DESIGN The neighbourhood food environment was captured by creating 0?5-mile and 1-mile network distance (street distance) aro...