Near-surface imaging of a buried foundation in the Western Desert,Egypt, using space-borne and ground penetrating radar

ALOS/PALSAR L-band full polarimetric data have been used to detect and characterize a well-defined geometric target hidden under sand deposits in the Western Desert of Egypt. This buried object is rectangular in shape with very straight boundaries and encloses an area of 500 m². Inside the rectangular area there is a perfectly circular feature of approximately 53 m² area. High and medium resolution optical satellite images (WorldView-2, ALOS/AVNIR-2) and field investigation confirm that the topography of the study area is relatively flat and completely covered by dry sand. The electromagnetic wave scattering behavior of the detected buried object was measured by decomposing the scattering matrix of ALOS/PALSAR full polarimetric data into Entropy-Alpha (H/α) and Freeman and Durden decompositions. Furthermore, a combination of unsupervised classification algorithms and Constant False-Alarm Rate (CFAR) edge detection was performed on the polarimetric data which revealed a well-defined geometric shape with straight borders. These borders have high α angles with low entropy, which physically means double bounce scattering mechanism with low randomness and is very similar to that of an urban scatterer, indicating that the detected target might be a buried wall-like foundation of a man-made structure. Moreover, 28 ground penetrating radar (GPR) profiles were acquired using a 270 MHz shielded antenna to validate the satellite radar remote sensing results. The GPR profiles reveal very clear hyperbolic shapes at 1.5 m depth with one of them showing a large hyperbolic shape-like structure, which might indicate the presence of a buried foundation. Thus the site might have significance to archaeological studies of the Western Desert, particularly previous human occupation and the sources of water for such habitation.     

The Impact of Mobile Technology on Low‐Income Communities in Lebanon

This article attempts to study the impact of mobile technology, as represented by mobile phones, on low income communities, as represented by farmers in the Bekaa Valley, the largest farmland of Lebanon. It aims to identify areas where the mobile phone has a positive impact on farmers' lives, family, friends, work, finance, and health; and areas where the mobile phone has a negative impact on farmers' lives, in addition to identifying some important associations among the variables. The results show that more than 38 percent of farmers own a mobile phone. The benefits of having a mobile phone are improved work, better income, improved family and social ties, more freedom and independence, better health, and better finance. High cost and accessibility were the two major drawbacks. Owning a mobile phone is associated with education, better work, better income, better health, and better finance. It is independent of gender and income. The study recommends that telecommunication companies in the area should expand their services to low‐income communities, improve coverage, and reduce cost.     

Negotiating Difference in a Muslim Society: A Longitudinal Study of Islamic and Secular Discourses in Turkey

This article explores the changes in attitudes among Islamic and secular groups in Turkey through an analysis of their discourses regarding Islam, democracy, secularism, and dialogue. We present the findings of a longitudinal study (Q study) conducted in Turkey in 2002 and 2007. The time period under investigation marks the first uninterrupted five‐year‐long term of an Islamic‐leaning government, Adalet ve Kalk?nma Partisi (AKP, Justice and Development Party), in office since the inception of the Turkish Republic in 1923. We suggest that the continuous electoral success of the AKP has played an important role in shaping Islamic and secular discourses in the Turkish public sphere. In contrast with its predecessor, the AKP has employed a rights‐based paradigm when defining the place of Islam in a secular society. This, we suggest, has softened the divide between Islamic and secular discourses in Turkey. In this article, after defining the core characteristics of both discourses that remained the same in both 2002 and 2007, we focus on the major shifts in discourses that have occurred during these five years. Our research reveals that during this time, both Islamic and secular discourses underwent important shifts with respect to Islam's place in a democratic society. We interpret the AKP's discursive shift toward a rights‐based paradigm and the increasing emphasis on dialogue in both Islamist and secular discourses as promising signs for expanding the scope for democratic polity in Turkey.