Performance of Degrading Reinforced Concrete Frame Systems Under the Tohoku and Christchurch Earthquake Sequences

Field investigations after the recent Tohoku and Christchurch earthquakes reported failure of structural systems due to multiple earthquakes. In most failure cases the reported damage was mainly due to dramatic loss of stiffness and strength of structural elements as a result of material deterioration due to repeated earthquake loading. This study aims to investigate the degrading behavior of reinforced concrete frame systems subjected to Tohoku and Christchurch earthquake sequences. Numerical models of RC frames that incorporate damage features are established and inelastic response history analyses are conducted. The results presented in this study indicate that multiple earthquake effects are significant.     

Managing Heritage in a War Zone

Threats to the rich Palestinian cultural heritage are many and diverse. They are quite serious and hard to deal with. Some of them, such as illegal digging and the antiquities trade, are the result of a mixture of past colonial history and internal and self-inflicted problems, while the Israeli Separation Wall, direct military and settlement activities are present-day external threats. Up to this very day, they are devastating the country’s heritage, and nothing has thus far been done to confront them. The present paper intends to discuss those threats and suggests ways to confront them.

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Résumé  Les menaces mettant en péril le riche héritage culturel Palestinien sont nombreuses et variées. Elles sont très sérieuses et d’un abord difficile. Certaines d’entre-elles, comme l’excavation illégale et le commerce des antiquités, sont le résultat d’un amalgame entre l’histoire post-colonialiste et de problèmes issus des Palestiniens eux-mêmes. Le mur dressé par les Israélien, les interventions militaires et les activités d’implantation dans les territoires occupés constituent actuellement des menaces. Jusqu’à ce jour, ils sont entrain de dévaster l’héritage du pays, et rien n’a été fait pour les confronter. Cet article a pour objectif de discuter de ces menaces et suggère des moyens de les confronter.

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Resumen  Las amenazas que acechan al rico patrimonio cultural de Palestina son muchas y muy variadas. Son, además, bastante graves y difíciles de combatir. Algunas de ellas, como la excavación ilegal y el comercio de antigüedades, se deben en parte a la historia colonial y a problemas autoinflingidos, mientras que el muro de separación israelí y las actividades militares y coloniales directas son las amenazas externas de la actualidad. Hasta hoy, han estado destruyendo el patrimonio del país y nada se ha hecho para evitarlo. En este trabajo se pretende analizar estas amenazas y sugerir medios para combatirlas.

     

Ideology and Television in the Eastern Arab World: 1956–1990

This article deals primarily with the relationship between ideology and television from 1956 to 1990 in the Eastern Arab world. It allows us to see what kinds of ideological ideas circulate through television, why they are constructed, and when they are being challenged. It examines why and how television promotes ideology and disseminates political messages. It takes into account different ideological perspectives. This article is a type of qualitative analysis that focuses on why governments seek to attain hegemony over television and how television has been used successfully as a tool of ideological propaganda and subservience.     

Condemned to metallum? The origin and role of 4th–6th century A.D. Phaeno mining campresidents using multiple chemical techniques

The Byzantine period (4th–7th centuries A.D.) site of Khirbet Faynan (Phaeno) was a state-run mining camp described in ancient sources as a destination for Christian martyrs and others prosecuted by the administration who were condemned to the mines (damnatio ad metallum). However, other evidence suggests that Phaeno had a much broader role and population in antiquity than that described by ancient writers. Here, strontium and oxygen isotope data on the level of migration into Phaeno were compared with elemental data on lead and copper skeletal levels to illuminate the varied exposure of local vs. non-local individuals to contaminated environments (presumably from working in mining and smelting operations). Dental enamel ⁸⁷Sr/⁸⁶Sr and δ¹⁸O data from 31 individuals excavated from the Southern Cemetery identified one individual born in a region with different strontium isotope values in the bedrock yet similar oxygen isotope signatures as Faynan. Most of the primarily locally-derived Faynan residents displayed skeletal copper and lead levels exceeding those seen in comparative samples, confirming that growing up and residing in the polluted environment of Faynan led to notable bioaccumulation of heavy metals and its resulting health effects. In addition, ten individuals had extremely elevated lead and copper levels in their skeleton resulting from more intensive exposure to contaminated environments, possibly through smelting and mining activities. These data confirm the relatively localized nature of this imperial operation and that this predominantly locally-derived population had different activities that put them ask varied risk for contamination by heavy metals.     

The Development Impact of NGO Activities in the Red Sea Province of Sudan: A Critique

This article examines the results of, and the prospects for, the declared shift of NGOs from relief operations to development activities in the Red Sea Province of eastern Sudan. Statistical and qualitative information contained in the reports of NGOs themselves provides the main data source on which the analysis is based. Although NGOs have been successful in conducting massive relief operations in the area, the article asserts that they have not yet and are not expected to achieve any tangible results on the development front. The main reason for this is the apparent misconception of development on the part of the NGOs as an isolated, localized activity which they can perform; another is the NGOs' failure to recognize the difference in the methods, means and prerequisites necessary for relief and for development; a third is the failure of NGOs to equip local institutions to absorb and/or sustain any achieved ‘development’, since most NGOs operate in complete isolation from governmental and traditional Beja institutions.     

Causes and Consequences of Inequality in Egypt

This study presents an analysis of various facets of inequality in Egypt using a political economy approach to understand how inequalities are reproduced in the Egyptian economy. It examines the drivers of income and wealth inequality, and the impact of uneven taxation. The paper highlights how the mismeasurement of top incomes can skew the measurement of inequality, and shows how Egypt has one of the biggest wealth gaps in the world. It investigates educational, gender, and healthcare inequalities and how they are reproduced across generations. The paper also highlights the disparity between urban and rural areas, which further contributes to inequality. It assesses why economic growth in Egypt has had limited success in reducing poverty and inequality, and analyzes how state and military interference in markets hampers the growth of the private sector. The paper concludes by examining how inequality, combined with a number of challenges that Egypt is facing, including increased authoritarianism, climate change, demographic pressures, and water security will likely exacerbate many of the country’s socioeconomic and political problems. Overall, the study argues that inequality remains a key concern that, if left unaddressed, may lead to social unrest and instability in the long term.     

Fragility Curves for RC Frames Subjected to Tohoku Mainshock-Aftershocks Sequences

The damaging effects of aftershocks are overlooked by current building codes and not properly accounted for in commercial seismic loss assessment software. In this paper, an evaluation of the seismic fragility relationships for reinforced concrete (RC) frame systems prone to mainshock-aftershocks sequences is conducted. Fiber-based finite element models for different types of RC frames are established and subjected to a suite of ground motions obtained from the Tohoku sequence. Fragility relationships are derived with and without consideration to multiple earthquake effects. The results from this study confirm that multiple earthquakes have significant effects on the vulnerability relationships of RC frames.     

The Process of Famine: Causes and Consequences in Sudan

In the Sudan, where 200,000 children can die from diseases like diarrhoea and measles in a ‘normal’ year, the toll jumped to somewhere between 350,000 and 700,000 [in 1984]; in the next twelve months one million more could die — out of a total child population of only 6 million. UNICEF estimates that over six million sub-Saharan infants and children are endangered by famine.