Due to the scarcity of frequency allocations for emerging personal communications services, it has been proposed that spread spectrum (SS) signals be used in such services so that they can be overlaid on existing frequency band occupants. Such SS signals would be constrained in power so as not to interfere with pre-existing, narrowband users. In view of this application, suppression of strong n...

UVB is widely used to treat psoriasis. Conventional broadband UVB lamps are less effective than narrowband UVB lamps, which have an emission peak at 311 nm. The long-term safety of narrowband UVB phototherapy is uncertain. "Selective" broadband UVB lamps, which have little emission <290 nm, are also available, but have not been adequately compared to narrowband UVB lamps. We performed a randomi...

In this paper, subject-specific narrowband (2.45 GHz) and ultra-wideband (3–10.6 GHz) on-body radio propagation studies in wireless body area networks (WBANs) were performed by characterizing the path loss for eight different human subjects of different shapes and sizes. The body shapes and sizes of the test subjects used in this study are characterised as thin, medium build, fatty, shorter, av...

i%eoverlay of a CDMA system in a frequency band which is already servicing narrowband users has the potential for significant gains in user capacity [1]. For the single-cell case, it was shown in [2] that interference caused to the narrowband system by CDMA users is significant, even when the CDMA system is very lightly-loaded. The use of notch filtering at the CDMA transmitter to avoid active ...

A system to record the ultraviolet (UV) spectra of atmospheric global irradiance with the miniature fiber optic spectrometer AvaSpec-256 was developed for continuous computer-aided spectrometry at Tartu Observatory in 2005. As a result, the database of spectra recorded with 15-mininterval round 24 h over 300–400 nm, has been developed. The quantities retrieved from the spectra have been compare...

Dermatologic TherapyVolume 34, Issue 4 e15038 RETRACTIONFree Access Retraction statement: Role of resolvin D1 in psoriasis before and after narrowband ultraviolet B phototherapy: A case–control study This article retracts the following: Retracted: case-control Maha Fathy Elmasry, Eman Hassan, Laila Ahmed Rashed, Dalia Mohamed Abdel Halim, Volume 34Issue 2Dermatologic Therapy First Published onl...

Background: Phototherapy is a safe and effective treatment modality for skin diseases in children such as psoriasis, atopic dermatitis, pityriasis lichenoides, vitiligo, cutaneous cell lymphoma, rubra pilaris, other disorders. It reported to be with less side effects compare the administration of systemic medicine. Short long term should taken into account when applying this model therapy, espe...