We present the full calculation of the divergent one-loop contribution to the effective boson Lagrangian for supergravity, including the Yang-Mills sector and the helicity-odd operators that arise from integration over fermion fields. The only restriction is on the YangMills kinetic energy normalization function, which is taken diagonal in gauge indices, as in models obtained from superstrings....

The ability to control the activity of intracellular signaling processes in live cells would be an extraordinarily powerful tool. Ideally, such an intracellular input would be (i) genetically encoded, (ii) able to be turned on and off in defined temporal or spatial patterns, (iii) fast to switch between on and off states, and (iv) orthogonal to other cellular processes. The light-gated interact...

A personal communications services (PCS) system that provides access to, and interworks with, the ATM network will have the capability to support future multimedia services. PCS access to fixed ATM networks is one of the wireless access scenarios being considered by the ATM Forum for standardization. This paper provides a system level description of a PCS-to-ATM interworking scenario. It propos...

A renormalizable rigid supersymmetry for the four dimensional antisymmetric tensor field model in a curved space–time background is constructed. A closed algebra between the BRS and the supersymmetry operators is only realizable if the vector parameter of the supersymmetry is a covariantly constant vector field. This also guarantees that the corresponding transformations lead to a genuine symme...

A Physical Layer based on OFDM modulation with parameters similar to 802.11a, HIPERLAN/2 and MMAC is presented. The PHY covers data rates of 6.7 to 60 Mbit/s with 20 MHz channel spacing. The OFDM based PHY exhibits, in addition to good link budget, excellent multipath robustness. Aligning the BWA PHY with a contemporary high-speed wireless LAN PHY standard will result in widely available, cost ...

The phytochrome (phy) family of photoreceptors regulates changes in gene expression in response to red/far-red light signals in part by physically interacting with constitutively nucleus-localized phy-interacting basic helix-loop-helix transcription factors (PIFs). Here, we show that PIF1, the member with the highest affinity for phys, is strongly sensitive to the quality and quantity of light....

Since the inception of Wireless Local Area Networks (WLANs) in the year 1997, it has tremendously grown in the last few years. IEEE 802.11 is popularly known as WLAN. To provide the last mile wireless broadband connectivity to users, IEEE 802.11 is enriched with IEEE 802.11a, IEEE 802.11b and IEEE 802.11g. More recently, IEEE 802.11n, IEEE 802.11ac and IEEE 802.11ad are introduced with enhancem...

The present experiment was conducted to evaluate the effects of organic acids and phytase enzyme supplementation on performance and intestinal histomorphology of broilers. The experiment was done in a factorial arrangement 2 × 2 × 2 based on completely randomized design with eight treatments, five replicates with 12 chicks in each until 42 days of age. Diets included natural vinegar (0 and 2%),...

We consider a power-limited ad-hoc network with coherent radios in a slow-fading environment, and we analyze the performance of different physical layer (PHY) and medium access (MAC) schemes in such a network. Most of the existing analysis assume that PHY is based on the nearest neighbor decoding, which is not optimal in this case. Instead, we focus on the MLE detector. We show that, since some...

The effects of the centrally acting anti-cholinesterases tacrine (tetrahydroaminoacridine, THA) and physostigmine (PHY), on local cerebral glucose utilization (LCGU) have been studied in 27-month-old rats, using the autoradiographic [14C]deoxyglucose technique. THA (10 mg/kg i.p.) increased LCGU significantly in 13 of the 54 regions studied (24%) including insular, parietal, temporal, and retro...