Over the lasts years there has been a growing interest on Mobile Ad Hoc Networks (MANET), in this network nodes are carried by people and connected to each other by multi-hop wireless links. Since the nodes can move freely, then the node mobility pattern became an important characteristic of the MANET. A large number of network tasks are influenced by mobility. Mobility introduces uncertainty i...

Since the first quantum ghost imaging (QGI) experiment in 1995, many QGI schemes have been put forward. However, the position-position or momentum-momentum correlation required in these QGI schemes cannot be distributed over optical fibers, which limits their large-scale geographical applications. In this paper, we propose and demonstrate a scheme for long-distance QGI utilizing frequency corre...

BACKGROUND Geographical inequalities in perinatal health and child welfare require attention. To improve the identification, and care, of mothers and young children at risk of adverse health outcomes, the HP4All-2 program was developed. The program consists of three studies, focusing on creating a continuum for risk selection and tailored care pathways from preconception and antenatal care towa...

Geographic Proximity, Trade and International Conflict/Cooperation This paper examines the interactive effect of distance and trade on international conflict and cooperation. The effect of geographic distance depends on trade, while the effect of trade varies with geographic distance. Trade reduces conflict to a greater extent when dyads are geographically close, but has a greater effect on coo...

We consider the problem of calculating the geographical position of nodes in a wireless network, where the privacy of location data is highly valued. A solution is presented using a multi-party computation, where the secret inputs are the position of anchor nodes and distances between nodes.

Evolutionary Location Intelligence on implementing a position based routing, that make forwarding decision based on the geographical position of a packet's destination is concentrated in this paper. One distinct advantage of this model is not necessary to maintain explicit routes. Position based routing does scale well even if the network is highly dynamic. We use greedy forwarding approach wit...

Geographical Social Production (GSP) is a recent phenomenon created by the confluence of geographical and the open content philosophies. In this position paper, we report a few lessons we learned through our experience and research with one such GSP system, Cyclopath, a route-finding geowiki for bicyclists. We believe these lessons would help drive critical thinking about how to make GSP system...

The research enterprise increasingly involves multidisciplinary collaboration, sometimes over geographic distance. Technological advances have made these collaborations possible, and the history of past innovations suggests these collaborations are desirable. Yet multidisciplinary projects can carry high coordination costs. This study investigated how collaborations address disciplinary differe...

Citizenship in the United States: The Roles of Immigrant Characteristics and Country of Origin This study develops and estimates a model of the naturalization process in the US. The model is based on both the characteristics of immigrants and features of their countries of origin. The empirical analysis is based on the 2000 US Census. Both the characteristics of immigrants and the origin-countr...

qutb al-din mohammad known as abdoll?h-e-qutb, is the mystic and austere of 15-16 centuries whose most important trait of life is his plan of an ideal society organization, called “ekhvan-?b?d”. such a devotional aggregation near the city of jahrom, provoked high sensitivity and prompted disagreements, because of this period’s advent. since, after several centuries, there have been remained not...