Modern society habitually uses online social media services to publicly share observations, thoughts, opinions, and beliefs at any time and from any location. These geotagged social media posts may provide aggregate insights into people’s perceptions on a broad range of topics across a given geographical area beyond what is currently possible through services such as Yelp and Foursquare. This p...

We propose a method for redistricting, decomposing a geographical area into subareas, called districts, so that the populations of the districts are as close as possible and the districts are compact and contiguous. Each district is the intersection of a polygon with the geographical area. The polygons are convex and the average number of sides per polygon is less than six. The polygons tend to...

OBJECTIVES To determine the geographical distribution of cases of systemic lupus erythematosus (SLE) in a defined geographical area in the East Midlands, UK, and, in particular, to search for spatial variation in cases that may implicate the role of environmental factors in SLE aetiology. METHODS Six methods of case ascertainment were used. The postcode of the patient's domicile at time of fi...

The Middle East has always been of interest to other countries for its geopolitical position and its vast supply of oil and gas. Meanwhile, the issue of the transfer of oil by sea is of great importance. The Strait of Hormuz is perhaps one of the most important blue-water in the world due to the geographical location of the Persian Gulf to the Free Seas. The world's superpowers, like the United...

Becker's nevus is a unilateral hyperpigmented area of skin with geographical borders. It is usually located on shoulders, anterior chest, scapular region and upper arms. Sometimes it shows evidence of androgen hypersensitivity and co-localizing with other developmental anomalies. We report a 12-year-old girl with clinical and histopathological findings compatible with Becker's nevus on he...

Statistical information for empirical analysis is very frequently available at a higher level of aggregation than it would be desired. Economic and social indicators by income classes, for example, are not always available for cross-country comparisons, and this problem aggravates when the geographical area of interest is sub-national (regions). In this paper we propose entropy-based methodolog...

This paper presents a method for generating the zone profile of a mobile user by determining its appropriate radio profile in order to support location based services. The location-sensitive charging services are offering special tariffs inside a predefined geographical area, the Localized Service Area (LSA) or they can offer short-message advertising, etc. In this paper we are describing a net...

Vehicular Ad-Hoc Networks (VANETs) have a highly dynamic network topology due to the constant and rapid movement of vehicles. Therefore, communication in VANETs is mostly affected with disruptions and delays as a result of network disconnections and partitions. Moreover, increasing the geographical coverage area for data dissemination while keeping the data-delivery delay low is a challenge. Th...

Self organization is one of the most important characteristics in an Ad-hoc Sensor Network. Thousands of Sensors are deployed in a geographical area randomly without considering the location factor. After deployment, sensors are to self organize themselves to form a network of their own. How well the network is formed determines the life of the whole network as well as the quality of data trans...