BOOK REVIEWS

Book Reviews in This Article: Trois ?uvres Inédites de mystiques musulmans: āqq? al-Bal?, Ibn ?, Niffarā. By Paul Nwyia. The Formative Period of Islamic Thought. By W. Montgomery Watt. The Arab Mind. By Raphael Patai. l?m? al-Adab al-M?r f? Mir? (Bio-bibliographical Critical Series), No. 1, h?āūsayn. By Hamdi Sakkut and Marsden Jones. A History of the Crusades. Kenneth M. Setton, general editor. Volume III, The Fourteenth and Fifteenth Centuries , edited by Harry W. Hazard. The Muslim Dilemma in India. By M. R. A. Baig. Who is Maudoodi ? By Maryam Jameelah. A Tacit Alliance. By S. K. Crosbie.     

Seismic Response of Secondary Systems Supported by Torsionally Yielding Structures

Substantial damage sustained during several recent earthquakes was non structural in nature. The economic consequence in terms of non structural component damage far exceeded the structural damage. Currently, there are several analytical studies that address the interaction between non structural components or Secondary systems (S-systems) and the main supporting structure or Primary system (P-system). Only a few of these analytical approaches have been proposed to evaluate and characterize the response of the S-systems attached to torsionally coupled P-systems. In addition, the experimental verification for the analytical approaches is scarce.

In the current study, the results and observations of an experimental research program conducted to characterize the behavior of both stiffness eccentric and mass eccentric torsionally coupled Primary-Secondary systems (PS-systems) are presented. From this experimental investigation it was found that the torsional yielding of the primary system has significant implications on the deamplification of near tuned secondary system response. The location of the S-system mounted on the P-system affects the peak response amplification, and interaction with the coupled P-system.     

Climatic signal in tree-ring chronologies of Cedrus deodara from Chitral Hindukush Range of Pakistan

Tree-rings are an important tool for the investigation of paleoclimatic records for regions or periods of time with no instrumental climatic data. However, the responses of different species and sites to various climatic parameters are unusual. In the present study, we developed tree-ring-width chronologies of Cedrus deodara from three different sites of Chitral Hindukush range of Pakistan. The study was conducted to understand tree-growth climate relationship and its applicability in proxy climate investigations. The chronologies covered the past 469 to 595 years, with a mean segment length (MSL) ranging from 148 to 223 years. Climatic data obtained from the three weather stations showed strong correlation and was found useful for tree-ring climate relationships. Correlation Function (CF) and Response Function (RF) analysis showed that spring precipitation (March–May) is a critical limiting factor for tree-ring growth, and temperature prior to November may also play a major role in affecting tree ring-growth. The results exposed that the three sites have continuous relationship indicated that only single species from different locations are affected by the same environmental variables and hence can be used in climate reconstruction in combination. The Cedrus deodara chronologies developed at different locations had several corresponding narrow and wide marker rings indicating a large macroclimatic response to regional climatic conditions. The current study suggests that the tree-rings of Cedrus deodara from the Chitral Hindukush range could be used to develop chronologies for the reconstruction of seasonal climatic variables.     

Traces of Early Austronesian Expansion to East Indonesia? New Discovery of Dentate-Stamped and Lime-Infilled Pottery from Central Sulawesi

This short article report about the new findings of finely made dentate-stamped and lime infilled potteries from the Goa Topogaro site in Central Sulawesi, Indonesia. Most of them are red-slipped pottery decorated with dentate-stamped, lime infilled, and can be identified as burial potteries as they are excavated with secondly burials of the Early Metal Age possibly dated around 2000-1800 years ago. When comparing these finds with common decorative patterns seen in early dentate-stamped pottery assemblages in the Philippines, Mariana Islands, and early Lapita sites, the Topogaro dentate-stamped pots lack some common early patterns, but exhibit a wider variety of designs. It is now argued that dentate-stamped decorations at Lapita sites mainly disappeared by around 2800 BP or at least by 2000 BP in the Pacific, but the Topogaro dentate-stamped sherds may indicate that this pottery tradition continued and further developed in Island Southeast Asia or Sulawesi at least until the Early Metal Age. The detailed analysis of these new finds and further comparative study on production technique, variety of design, forms, and styles of both dentate-stamped ceramics in Southeast Asia and Oceania is required.