James Gardner

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An overview is given of the new IEEE 802.11n standard. This is the first wireless LAN standard based on MIMO-OFDM, a technique pioneered by Airgo Networks to give a significant performance increase in both range and rate relative to conventional wireless LAN. Performance results show that net user throughputs over 100 Mbps are achievable, which is about(More)
In this paper we describe a coding, modulation, and spatial processing technique for fixed broadband wireless Internet access applications and provide examples of its performance. This technique is built on Orthogonal Frequency Division Multiplexing (OFDM) and is known as Vector OFDM (VOFDM). We compare VOFDM with conventional Single Carrier Modulation(More)
In less than half a century, allergy, originally perceived as a rare disease, has become a major public health threat, today affecting the lives of more than 60 million people in Europe, and probably close to one billion worldwide, thereby heavily impacting the budgets of public health systems. More disturbingly, its prevalence and impact are on the rise, a(More)
The response of eukaryotic cells to DNA damage includes the activation of phosphatidylinositol-3 kinase-related kinases (PIKK), such as ATM, ATR, and DNA-dependent protein kinase (DNA-PK). These three kinases have very similar substrate specificities in vitro, but in vivo, their substrates overlap only partially. Several in vivo substrates of ATM and ATR(More)
We examined household task participation patterns of 46 children and youth with and without physical disability (PD) and explored the effects of age on roles of and expectations for these children in household task participation. Children with PD did not differ significantly from those without PD in the number of household tasks they performed; however,(More)
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