During the 80’s, some experiments and the repetitions of old ones, lead to the hypothesis of a fifth force. Nevertheless, a more accurate research was not able to confirm this hypothesis. This article wants to go over again the most important steps of the event. PACS-01.65.+g History of science. PACS-04.80.Cc Experimental tests of gravitational theories. CNR Bologna Research Area Library cat. 8...

a/G(mA +mB) calculated with the system’s parameters, determined independently of the third Kepler law itself, in order to put constraints on some models of modified gravity (f(R), Yukawa-like fifth force, MOND). The major source of error affecting ∆P is not the one in the phenomenologically measured period (δPb = 4× 10 −6 s), but the systematic uncertainty δP (0) in the computed Keplerian one d...

Abstract Filterbank multicarrier (FBMC) is an effective method for modulation over massive multiple-input multiple-output (MIMO) channels in the future fifth generation wireless networks. This technique provides high spectral efficiency, and it resilient against synchronization errors compared to well-known orthogonal frequency division multiplexing technique. paper introduces a new technique, ...

Many indirect developing animals create specialized multipotent cells in early development to construct the adult body and perhaps to hold the fate of the primordial germ cells. In sea urchin embryos, small micromeres formed at the fifth division appear to be such multipotent cells: they are relatively quiescent in embryos, but contribute significantly to the coelomic sacs of the larvae, from w...

With the rapid development of wireless communication, the spectrum resource becomes rare, and research on utilization of limited spectrum resource becomes more popular, especially in fifth generation (5G) mobile communication system. Some efficient frequency division multiplexing systems, such as spectrally efficient frequency division multiplexing (SEFDM) system, can improve spectrum utilizati...

This paper models the downlink Fifth Generation (5G) network that supports a flexible frame structure and shorter Round Trip Time (RTT) for Hybrid Automatic Repeat Request (HARQ).  Moreover, design of renowned Division Multiple Access (TDMA) packet scheduling algorithms is revised to allow these support in 5G. Simulation results demonstrate Proportional Fair provides comparable performance dela...