The genome of Caenorhabditis elegans possesses two genes, dpy-18 and phy-2, that encode alpha subunits of the enzyme prolyl 4-hydroxylase. We have generated deletions within each gene to eliminate prolyl 4-hydroxylase activity from the animal. The dpy-18 mutant has an aberrant body morphology, consistent with a role of prolyl 4-hydroxylase in formation of the body cuticle. The phy-2 mutant is p...

In this paper we consider the joint performance of fountain codes and 802.11a/g PHY modulation/coding. We consider optimality both in terms of maximizing goodput and minimizing energy, and results are presented for both theoretical and experimental channel models. In contrast to studies in cellular networks, we find that in 802.11a/g WLANs the cross-layer approach of a higher-layer fountain cod...

Following light-induced nuclear translocation, specific members of the phytochrome (phy) photoreceptor family (phyA to phyE) interact with bHLH transcription factors, such as PIF3, and induce changes in target-gene expression. The biochemical mechanism comprising signal transfer from phy to PIF3 has remained undefined but results in rapid degradation of PIF3. We provide evidence that photoactiv...

Bacteriophytochromes (BphPs) constitute a class of photosensory proteins that toggle between Pr and Pfr functional states through absorption of red and far-red light. The photosensory core of BphPs is composed of PAS, GAF, and PHY domains. Here, we apply FTIR spectroscopy to investigate changes in the secondary structure of Rhodopseudomonas palustris BphP2 (RpBphP2) upon Pr to Pfr photoconversi...

The architectural design of Wireless Sensor Networks (WSNs) for the Industrial Internet Things (IIoT) applications requires careful planning and selection an appropriate operational strategy. Harmonization standards is crucial to ensure easier certification commercialization IIoT solutions. ongoing research activities are directed toward designing agile, reliable, secure transmission technologi...

Next-generation wireless networks are getting significant attention because they promise 10-factor enhancement in mobile broadband along with the potential to enable new heterogeneous services. Services include massive machine type communications desired for Industrial 4.0 ultra-reliable low latency services remote healthcare and vehicular communications. In this article, we present design of i...

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In this paper, we evaluate and enhance the performance of the Forward Error Correction (FEC) scheme being defined in the upcoming IEEE 802.11e Medium Access Control (MAC) protocol. A novel retransmission-combining technique is proposed to enhance the performance of the MAClevel FEC scheme. We also identify a problem with the IEEE 802.11a physical (PHY) layer when it is used with the MAC-level F...

In this demo, we present a software and hardware platform for designing services in the next generation of wireless networks, in which SDN and SDR are expected to play a key role. We use a LabVIEW-based PXI platform in which LTE-like SISO OFDM PHY Layer is integrated with an open source protocol stack. Such platform can be easily used within an SDN framework to prototype PHY/MAC cross-layer alg...