Seth A. Myers

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Even though human movement and mobility patterns have a high degree of freedom and variation, they also exhibit structural patterns due to geographic and social constraints. Using cell phone location data, as well as data from two online location-based social networks, we aim to understand what basic laws govern human motion and dynamics. We find that(More)
In networks, contagions such as information, purchasing behaviors, and diseases, spread and diffuse from node to node over the edges of the network. Moreover, in real-world scenarios multiple contagions spread through the network simultaneously. These contagions not only propagate at the same time but they also interact and compete with each other as they(More)
In this paper, we provide a characterization of the topological features of the Twitter follow graph, analyzing properties such as degree distributions, connected components, shortest path lengths, clustering coefficients, and degree assortativity. For each of these properties, we compare and contrast with available data from other social networks. These(More)
S1. Power-grid data. The data required for power flow calculations were obtained as follows. For the 10-generator system, known as the New England test system, the parameters were taken from ref. 47. For the 3and 50-generator systems, the parameters were taken from refs. 30 and 48, respectively. The data for the Guatemala and Northern Italy systems were(More)
PURPOSE The post-vasectomy pain syndrome is a rare but troublesome complication of vasectomy. We report our experience with 32 patients who underwent vasectomy reversal for relief of the post-vasectomy pain syndrome. MATERIALS AND METHODS The records of 32 patients undergoing vasovasostomy or epididymovasostomy for the post-vasectomy pain syndrome were(More)
Plasma-luteinizing hormone (LH) and prolactin (Prl) levels were determined using radioimmunoassay during two reproductive cycles in captive cockatiels (Nymphicus hollandicus)--an altricial species in which both parents share incubation and care of young. Birds were stimulated to breed by increasing daylength, light intensity, ambient temperature, and(More)
The ever increasing popularity of location aware mobile devices, has facilitated the collection of large amounts of human mobility data. This data usually contains where a person was and when, which can give us an insight into the complex social behavior of people. In this paper we explore the use of co-location as a means to estimate the strength of(More)