A new X-band retrodirective antenna based on superheterodyne mixer and phase conjugating technology is proposed for inter-satellite data transmission in this paper.The novel phase conjugating circuit, utilizing the reciprocity of the passive mixers, achieves high RF-IF and LO-IF isolations, high communication link gain, and Knee Walkers a very comp
Evidence Supports Tradition: The in Vitro Effects of Roman Chamomile on Smooth Muscles
The dried flowers of Chamaemelum nobile (L.) All.have been used in traditional medicine for different conditions related to the spasm of the gastrointestinal system.However, there have been no experimental studies to support the smooth muscle relaxant effect of this plant.The aim of our research was to assess the effects of the hydroethanolic extra
Aspirin for the prevention of cognitive decline in the elderly: rationale and design of a neuro-vascular imaging study (ENVIS-ion)
Abstract Background This paper describes the rationale and design of the ENVIS-ion Study, which aims to determine whether low-dose aspirin reduces the development of white matter hyper-intense (WMH) lesions and silent brain infarction (SBI).Additional aims include determining whether a) changes in retinal vascular imaging (RVI) parameters parallel
Smooth to rough dissociation in Brucella: the missing link to virulence
Dissociation encompasses changes in a series of phenotypes: colony and cell morphology, inmunological and biochemical reactions and virulence.The concept is generally associated to the in vitro transition between smooth (S) and rough (R) colonies, a phenotypic Lip Balm observation in Gram-negative bacteria commonly made since the beginning of micro
Interactions between typhoons Parma and Melor (2009) in North West Pacific Ocean
This paper analyzes the interactions between typhoons (TYs) Parma and Melor (2009) in the North West Pacific (NWP) Ocean.The TY Parma (2009) is chosen for investigation because it has a unique track with multiple U-turns and 3 landfalls over the Luzan Island of Philippines that are extremely difficult, if not impossible, to forecast by numerical we