Abstract. Let N0 be the set of non-negative integers, and let P (n, l) denote the set of all weak compositions of n with l parts, i.e., P (n, l) = {(x1, x2, . . . , xl) ∈ N0 : x1 + x2 + · · · + xl = n}. For any element u = (u1, u2, . . . , ul) ∈ P (n, l), denote its ith-coordinate by u(i), i.e., u(i) = ui. A family A ⊆ P (n, l) is said to be t-intersecting if |{i : u(i) = v(i)}| ≥ t for all u,v...

The direction of the magnetic forces on currents, at right-angles to the conductor, leads to an apparent failure of the action-reaction force balance when applied to the component parts of a current-carrying circuit. The electromagnetic railgun provides an example showing the need for a force in the direction of current flow. These and other applications continue a long-standing debate, origina...

Wireless Sensor Networks (WSN) have recently been applied in various monitoring applications including hazardous gases detection. However, being a major power consumer of a sensor node, off-the-shelf gas sensors significantly constrain its lifetime. In this paper we present a WSN for hazardous gases detection with a special focus on the power consumption of the sensor node. The sensor node is d...

We discuss a new approach to the quantum cohomology ring of a Grassmannian. This ring is also isomorphic to the Verlinde algebra. We present a formula for the quantum product of Schubert classes (3-point GromovWitten invarints), or, equivalently, for the fusion product in sl(k). The main combinatorial tool is a cylindric analogue of Young tableux. The formula immediately implies several new ide...

Since its inception the memristive fuse has been a good example of how small numbers of memristors can be combined to obtain useful behaviours unachievable by individual devices. In this work, we link the memristive fuse concept with that of the Complementary Resistive Switch (CRS), exploit that link to experimentally demonstrate a practical memristive fuse using T iOx-based ReRAM cells and exp...

Figure 2—Upper Mullins Valley, ADV. Arrows point to oriented polygon fields with radial/orthogonal geometry. Down valley is to image right. THE ORIGIN AND EVOLUTION OF ORIENTED-NETWORK POLYGONALLY PATTERNED GROUND; THE ANTARCTIC DRY VALLEYS AS MARS ANALOGUE. Joseph S. Levy, James W. Head, and David R. Marchant; 1 Dept. Geological Sciences, Brown University, Providence RI, 02912, 2 Department of...

gonadotropin releasing hormone (gnrh) plays a key role in reproduction. this decapeptide is synthesized and released by hypothalamus and induces the pituitary gonadotrop cells to release pituitary gonadotropin hormones. in some extrapituitary compartments gnrh and its receptor act as part of the autocrine regulatory system of cell proliferation. the anticancer activity of gnrh and its analogues...

The author’s realizations of Alvin Lucier’s “I am sitting in a room” and Karlheinz Stockhausen’s Mikrophonie I are considered as case studies in the realization of live electroacoustic music. The new realizations, while faithful to the works’ scores, differed from the composers’ traditions of performance. Lucier’s piece was realized in real-time, a new set of implements and playing techniques w...