Cooperation among plasma membrane receptors in activating signal transduction cascades is not well understood. For almost 20 years, it has been clear that when a particulate foreign body is opsonized with complement as well as IgG, the efficiency of IgG effector functions is markedly enhanced. However, the molecular mechanisms involved in cooperation between IgG Fc receptors and complement rece...

In this paper, we propose a new homogeneous burst structure for the time-division duplex (TDD) component of the universal mobile telecommunication system (UMTS). The midamble period is removed and replaced by a data field to enhance the system’s spectrum efficiency. Alternatively, a pilot signal is loaded into one of these bursts over each time slot, in order to ensure a continuous channel trac...

Synchrotron is considered the dominant emission mechanism in the production of gamma-ray burst photons in the prompt as well as in the afterglow phase. Polarization is a characteristic feature of synchrotron and its study can give a wealth of information on the properties of the magnetic field and of the energy distribution in gamma-ray burst jets. In this paper I will review the theory and obs...

Recent developments in positron trapping technology have made possible experimentation with dense interacting positronium gases. Along with these capabilities comes a need for suitable measurement techniques, and accordingly we have developed a method to measure positronium lifetimes from a single intense burst of positrons. Our method is based on recording the anode signal from a photomultipli...

System description: Consider the system of N transmit and M receive antennas. The single data stream in the input is demultiplexed into N substreams, and each substream is modulated independently then transmitted over a rich-scattering wireless channel to M antennas. Each antenna receives signals transmitted from the entire N transmit antennas. The transmission is performed by burst of length l...

| We examine the design of modulation systems for meteor burst communications. In particular, we present a technique which allows the designer to determine the signal set size and the signaling rate which maximize the throughput per meteor burst. The technique, which involves the capacity and cutoo rate from information theory, is applied to a variable coding rate scheme and a variable signalin...

The hierarchical algorithm for curves and ridges is a variation of the burst gravitational wave search algorithm known as TFClusters. In this paper, we examine the detection efficiency of the hierarchical algorithm for curves and ridges by injecting sine-Gaussian burst waveforms with four different central frequencies into data acquired by the GEO600 gravitational wave detector during the S1 ru...

Abstract Narrowband microwave generation with tuneable frequency is demonstrated by illuminating a photoconductive semiconductor switch (PCSS) burst-mode fibre laser. The whole system composed of high-power linearly polarized pulsed laser and linear-state PCSS. To obtain high-performance signal, desired envelope burst necessary pulse pre-compensation technique adopted to avoid distortion induce...

A receiver is developed for MAP symbol detection of a burst (i.e., nite-length) CPM signal received in additive white Gaussian noise. This minimum probability of symbol error receiver requires the entire burst of data and involves the use of both forward and backward recursions. Performance results are provided comparing the MAP symbol detector to the more commonly used ML sequence detector (i....

While the role of the signal sequence in targeting proteins to specific subcellular compartments is well characterized, there are fewer studies that characterize its effects on the stability and folding kinetics of the protein. We report a detailed characterization of the folding kinetics and thermodynamic stabilities of maltose binding protein (MBP) and its precursor form, preMBP. Isothermal G...