Collagen deamidation in archaeological bone as an assessment for relative decay rates

Attempts to extend methods for dating archaeological bones beyond that of radiocarbon dating, such as amino acid racemization, have met with limited success owing to the dependence on multiple environmental factors and controls. Despite facing similar challenges, deamidation of glutamine has recently been investigated as a potential indicator of ‘thermal age' in archaeological bones, as well as a measure of their preservation quality. In this study, we undertook a series of simulated diagenetic experiments to understand the various factors affecting deamidation. Further, we analysed bones from different Middle Palaeolithic layers from Grotte Mandrin (France), with the results suggesting potential use of deamidation for relative dating, but only in case of extremely well‐preserved layers. The results also suggested the possible use of attenuated total reflectance‐Fourier transform infrared (ATR‐FTIR) spectroscopy as a screening test for soluble collagen before proteomic analysis.     

Approximate Methods for Estimating Hysteretic Energy Demand on Plan-Asymmetric Buildings

The first step in a hysteretic energy-based design approach of performance-based design is the estimation of hysteretic energy demand in the structure. A nonlinear response-history analysis of the multi-degree of freedom model gives an accurate estimation, but it is not suitable for adopting in design. Two alternative methods, based on the concepts of modal pushover analysis (MPA) and 2D-MPA, are proposed in this article for uniaxial plan-asymmetric structures. Application studies show that both methods are efficient. While the 2D-MPA-based method is more accurate, the MPA-based method is more suitable for design adoption. Significant conclusions are given for prospective application of these methods.     

Feminism and its ‘other’: representing the ‘new woman’ of Bangladesh

This essay examines women's oppression and organizing against gender violence in contemporary Bangladesh through the lens of television. I argue that the telefilm Ayna (The Mirror, 2006), written and directed by popular film actor and women's rights activist Kabari Sarwar, offers a window into the changing social and economic landscape of contemporary Bangladesh and the complex negotiations of power and inequality across gender, class and community. Furthermore, it offers an opportunity to unpack the social messages underlying development and modernization initiatives, the new kinds of alliances as well as dependencies engendered by them, and their multiple and uneven consequences. An investigation of the representations of competing and contradictory notions of women's subjectivity and agency in this telefilm allows us to understand how these intersect with shifting notions of local/global patriarchies, feminist solidarity and women's empowerment in Bangladesh today. Further, this essay illuminates the disjunctures between representations of the ‘new woman’ circulated through development and certain feminist advocacy narratives with women's lived realities of oppression, and survival.     

Involvement of street children in the political violence of Bangladesh

Analyzing the situation in Dhaka, Bangladesh before the national election of 2014, this paper explores the consequences of political hostility on street-connected children using qualitative methods such as focus group discussions and in-depth interviews. Findings show that the children were affected by political violence, both as victims and perpetrators, which harmed them, both physically and mentally. Active participation of children was found in hostile political events. The paper ascertains that maintaining a good relationship with the adult world is crucial for the street-connected children’s day-to-day survival. However, this survival mechanism with the adult world in turn makes them vulnerable and forced them to act as miscreants to instigate violence during the hartals (strikes) and blockades of 2014. This study examines how street-connected children are exploited via their social networks during the times of political unrest.     

Behavior of Gravity Type Retaining Wall under Earthquake Load with Generalized Backfill

Dynamic response of gravity type retaining wall under seismic load is a topic of considerable research for the last 90 years or more. The concept of deriving dynamic pressure based on rigid body mechanics as proposed by Mononobe and Okabe (M-O method) in 1929 continues to dominate the majority of the codes around the world, although it is reported in a number of cases that the M-O method underestimates the response in many cases. Although the M-O method was originally derived for cohesion less soil yet it is used frequently in deriving pressure for other general soil conditions also, like c-φ soil, c-φ soil with surcharge, etc.

This article is an attempt to predict the response of a gravity wall having a generalized backfill (i.e., c-φ soil with surcharge q and that could also be partially saturated) considering its structural deformation as well as the effect of dynamic soil structure interaction (DSSI), a phenomenon which is often ignored in practice. The results are finally compared with a 2-D finite element analysis carried out in ANSYS to check its validity.     

Transport Infrastructure and Regional Integration in the Middle East

The soft aspects of the infrastructure of regionalism in the Middle East have previously been studied, while the impact of the region’s hard infrastructure, in particular transport infrastructure, has received little attention. This paper contributes to the study of regionalism in the Middle East by investigating the relationship between hard infrastructure and economic integration. It analyzes whether the state of domestic and cross‐border transport infrastructure in the region promotes regional trade. This is done by addressing the following sub‐questions: 1) What is the condition of domestic and cross‐border transport infrastructure in the Middle East? And 2) What is the relationship between domestic and cross‐border transport infrastructure and regional trade in the Middle East? These questions are answered by examining Egypt, Iraq, Israel, Jordan, Lebanon, Palestine, Syria, and Turkey as representative samples of the broader region. It is argued that regionalism relies on the development of domestic and cross‐border transport infrastructure and where the latter is limited, regionalism cannot deepen. The study concludes that domestic and cross‐border transport infrastructure performance is weak in several of the countries studied and that this weakness hinders regional economic integration regardless of the level of the region’s soft infrastructure.