Recently, random access protocols have acquired a new wave of interest, not only from the satellite communication community, but also from researchers active in fields like Internet of Things and machine-to-machine. Asynchronous (slotand frame-wise) ALOHA-like random access protocols, are very attractive for such applications, enabling low complexity transmitters and avoiding time synchronizati...

Simultaneous nonlinear realizations of spontaneously broken supersym-metry in conjunction with other spontaneous and/or explicitly broken symmetries including R symmetry, global chiral symmetry, dilatations and the superconformal symmetries is reviewed. If supersymmetry (SUSY) is to be realized in nature, then it must be as a broken symmetry. Moreover, in order to be able to consistently gauge ...

Multiview analysis of scenes includes the study of sceneindependent constraints satisfied by a configuration of cameras for all types of scenes as well as the study of viewindependent constraints satisfied by any camera on a configuration of points. In this paper, we derive new constraints involving configurations of points that move with constant velocity, with constant acceleration, and for u...

You may never have been lost or stranded in the wilderness, but circumstances of your life may have left you feeling that way. Your leg may not be broken, but your heart is, and your spirit feels totally drained. Today I have a word of encouragement for you, and some very practical things to do while you wait. We take our cues from David, who once found himself in both a literal and spiritual w...

(dead or alive) are or were derived from living organism, including microorganisms and fragments of all varieties of living things (Matthias-Maser and Jaenicke, 1995). Biological aerosols span more than intact living organisms (analyzed as CFUs), which also include fragments of both living and dead organisms, plant debris, human and animal epithelial cells, parts of insects, broken hair filamen...

Object detection plays an important role in successfulness of a wide range of applications that involve images as input data. In this paper we have presented a new approach for background modeling by nonconsecutive frames differencing. Direction and velocity of moving objects have been extracted in order to get an appropriate sequence of frames to perform frame subtraction. Stationary parts of ...