Reactive oxygen metabolites can pro­ mote carcinogenesis by damaging DNA. vi­ tamin C is a redox chemical with antioxi­ dant and pro-oxidant properties that may produce radical species depending on the presence of various conditions. Nevertheless, evidence presented herein discourages the consideration of any mutagenic or carcino­ genic activity of vitamin C. In contrast, it substantiates a pro...

1 Cooperative Institute for Marine and Atmospheric Studies, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, USA, 2 Southeast Fisheries Science Center, National Marine Fisheries Service, Miami, FL, USA, 3 Wetland and Aquatic Research Center, US Geological Survey, Caribbean Field Station, St. John, VI, USA, 4 Center for Marine and Environmental Studies, Univer...

Wireless sensor networks enable the development of distributed sensing applications atop tiny "mote" computing platforms. As a result, collections of these motes can be placed in an environment in order to collect data unobtrusively. In this paper I present an investigation into the feasibility of retrofitting a vehicle with wireless sensor network motes. The potential benefits from intra-vehic...

New technology is changing the nature of sensors and the way they interface with data acquisition and control systems. Researchers at U.C. Berkeley have developed an open-source hardware and software platform that combines sensing, communications, and computing into a complete architecture. The first commercial generation of this platform was dubbed the Rene Mote, and several thousand of these ...

A tomar como mote a tese de Boime que identifica o Realismo arte oficial do Segundo Império, artigo reconstitui por sua própria conta os debates da época e examina na crítica pintura Chesneau Meissonier, também reivindicam realismo, em contraposição aos heterodoxos capitaneados Champfleury Courbet. O exame figuração artística à são feitos partir três dimensões: confronto entre autonomia engajam...

Contrary to laboratory environments, real-world wireless sensor network deployments face harsh conditions where motes can be lost during deployment or in operation. We demonstrate MOTEHUNTER, a tool designed to support searching for such lost motes. It uses a directional antenna, a digital compass, and RSSI measurement, and provides a Java GUI to assist field work. It can be used to search for ...

Many Wireless Sensor Networks (WSNs) applications are new and their requirements may not be fully anticipated during the sensor networks design and development stage. We are presenting a sensor network infrastructure that support motes’ with remote hardware and software modification to match the target applications need. Using the proposed infrastructure in next-generation WSNs will produce fle...

Most underwater networks rely on expensive specialized hardware for acoustic communication and modulation. This has impeded wide scale deployments of underwater sensor networks and has forced researchers to use simulations to investigate these systems. To address these issues, this paper examines a system that integrates off-the-shelf acoustic hardware built-in to sensor modules with software m...

A indústria criativa como força propulsora da economia de uma cidade é o mote deste artigo que propõe analisar evento Rock in Rio um exemplo modular no Brasil. Para isso, faz-se breve panorama sobre conceito país, a história do festival e ele se encaixa em ancorada bens serviços mescla dois segmentos criativos: cultura consumo.

This paper discusses the design of micro-robot legs based on the skiing principle using an improved version of the inchworm motors for the SMART DUST program. Four inchworm motors are attached to each of the two parallel sides of a SMART DUST mote to serve as the ski legs and support legs for the dust mote. The ski legs push the micro-robot at 75° from the surface and are capable of moving a mi...