STRUCTURE AND AGENCY: CONTESTED CONCEPTS IN HUMAN GEOGRAPHY

The concepts of ‘structure’ and ‘agency’ have been of central significance to geographic research. This paper focuses on recent debates in critical social geography, and the contributions of Marxist, feminist, and postmodern perspectives to rethinking the structure-agency question. Significant changes in conceptualizing structure and agency are outlined, from early work in Marxist geography to current efforts to grapple with postmodern culture and identity. The paper demonstrates that critical geographic approaches to structure and agency have become more inclusive and nuanced, as researchers have addressed challenges posed by critiques and new perspectives. It concludes by considering the significance of place, space, and social difference in mediating processes of social change and thus in concrete explanations of how the ‘dialectical dance’ of structure and agency unfolds within particular locales. Les concepts de «structure» et d' «action» ont une importance capitate dans les recherches en géographie. Cet article porte sur les débats qui ont récemment eu cours dans le domaine de la géographie sociale critique et sur les contributions apportées par les tenants des points de vue marxiste, féministe et postmoderne dans la reconceptualisation du rapport entre la structure et faction. On y mentionne les importants changements qui ont eu lieu dans le domaine de la conceptualisation des structures et des actions, des premiers travaux effectués en géographie marxiste jusqu'aux récents efforts dé-ployés pour mieux saisir la culture et I'identité postmoderne. Ce texte démontre que dans le domaine de la géographie critique, on voit la structure et faction d'une manière plus englobante et plus nuancée à mesure que les chercheurs se sont penchés sur les défis soulevés par les critiques et les nouvelles perspectives. Nous finissons par évaluer la place qu'occupent I'endroit, I'espace et la différence sociale dans la médiation des processus du changement social - et ainsi dans les explications concrètes des variations de la « danse dialectique » de structure et de faction dans des milieux particuliers.     

New radiometric ages for the Fauresmith industry from Kathu Pan,southern Africa: Implications for the Earlier to Middle Stone Age transition

The Fauresmith lithic industry of South Africa has been described as transitional between the Earlier and Middle Stone Age. However, radiometric ages for this industry are inadequate. Here we present a minimum OSL age of 464 ± 47 kyr and a combined U-series–ESR age of 542₋₁₀₇⁺¹⁴⁰ kyr for an in situ Fauresmith assemblage, and three OSL ages for overlying Middle and Later Stone Age strata, from the site of Kathu Pan 1 (Northern Cape Province, South Africa). These ages are discussed in relation to the available lithostratigraphy, faunal and lithic assemblages from this site. The results indicate that the Kathu Pan 1 Fauresmith assemblage predates transitional industries from other parts of Africa e.g. Sangoan, as well as the end of the Acheulean in southern Africa. The presence of blades, in the dated Fauresmith assemblages from Kathu Pan 1 generally considered a feature of modern human behaviour ( McBrearty and Brooks, 2000, The revolution that wasn't: a new interpretation of the origin of modern human behavior, J. Human Evolution 39, 453–563),-provides evidence supporting the position that blade production in southern Africa predated the Middle Stone Age and the advent of modern Homo sapiens.     

Reviews

Spatial models and locative expressions in Baluchi , Ela Filippone, Baluchistan Monograph Series, IV, Naples: Istituto Italiano per il Medio ed Estremo Oriente, 1996, 427 pp.

Qissah‐yi niyaz , Hushang Rahnema, Philadelphia: Miras‐e Iran, 1998, 175 pp.

Modernism and Ideology in Persian Literature: A Return to Nature in the Poetry of Nima Yushij , Majid Naficy, Lanham, Md.: University Press of America, 1997, 144 pp., $27.50

Mysticism and the Plurality of Meaning: The Case of the Ismailis of Rural Iran , Rafique Keshavjee, London: I. B. Tauris in association with the Institute of Ismaili Studies, 1998 (Occasional Papers, no. 2), vii + 47 pp.

Sacred Acts, Sacred Time, Sacred Space , John Walbridge, Oxford: George Ronald, 1996.

The History of Contemporary Iranian Jews , vol. 2, ed. Homa and Houman Sarshar, Beverly Hills, Calif.: Center for Iranian Jewish Oral History, 1997.

Padyavand , Judeo‐Iranian and Jewish Studies Series, vol. 2, ed. Amnon Netzer, Costa Mesa, Calif.: Mazda Publishers, 1997.

Memoirs of M. E. Amirteymour Kalali: Tribal Leader, Majles Deputy, Cabinet Minister , ed., Habib Ladjevardi, Iranian Oral History Project, Center for Middle Eastern Studies, Harvard University, 1997.

Persian Cookings: A Table of Exotic Delights , Nesta Ramazani, New York: Quadrangle Books, 1974, reprint Iranbooks, Inc., 1997, 296 pp.

The Legendary Cuisine of Persia , Margaret Shaida, U.K.: Lieuse Publications, 1992., reprint Penguin Books, 1994, 337 pp.

Reconstructed Lives: Women and Iran's Islamic Revolution , Haleh Esfandiari, Washington, D.C.: Woodrow Wilson Center Press, 1997, 234 pp., $15.95, paperback, ISBN: 0–8018–5619–1, $24.50, hardcover, ISBN 0–8018–5618–3.

Die iranische Schia und die islamische Einheit 1979–1996 , Wilfried Buchta, Hamburg, Deutsches Orient‐Institut, 1997, 427 pp.

Maqalati dar jami^cah‐yi shinasi‐yi siyasi‐yi Iran [Articles on the Political Sociology of Iran], Ervand Abrahamian, trans., Soheyla Torrabi‐farsani, Tehran: Shirazeh Publications, 1997, 254 pp. + index.

Parliamentary Politics in Revolutionary Iran: The Institutionalization of Factional Politics , Bahman Baktiari, Gainesville: University of Florida Press, 1996, ISBN 0–8130–1461–1, 282 pp. appendix, notes, bibliography, + index.

Street Politics: Poor People's Movement in Iran , Asef Bayat, New York: Columbia University Press, 1997, 216 pages + plus glossary.

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Iran and the Gulf: A Search for Stability , Jamal S. al‐Suwaidi, ed., Abu Dhabi: The Emirates Center for Strategic Studies and Research, 1996, xi + 425 pp., 12 figures, 8 tables, maps.

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The Paradox of Plenty: Oil Boom and Petro‐States , Terry Lynn Karl, Berkeley: University of California Press, 1997, 342 pp., $55.00, $22.00, paper.     

Lifestyle,occupation, and whole bone morphology of the pre‐Hispanic Maya coastal population from Xcambó, Yucatan,Mexico

The present bioarchaeological study examines the external diaphyseal geometric properties of humeri, radii, femora and tibiae of the Classic period skeletal population of Xcambó, Yucatan, Mexico. The diaphysial proportions are evaluated using a biomechanical approach together with data from the material context and other osteological information. Our intent is to provide new answers to questions concerning lifestyle, domestic labour division and subsistence strategies of this coastal Maya settlement that was inhabited from the Late and Terminal Preclassic (300 BC–350 AD) to the Postclassic Period (900–1500 AD). Our results provide evidence for a marked sexual division of labour when compared with values from contemporaneous inland populations. The overall male and female loading patterns differ remarkably in terms of form and in bilateral comparison. A high directional asymmetry in the upper limbs is evident among males, a condition related to maritime transportation and trading activities. On the other hand, female upper limbs are characterized by very low side differences. Forces on the arms of women were probably dominated by food processing, in particular the grinding of grains or seeds. In the lower limbs, males show significantly higher anteroposterior bending strengths, which can be explained by greater engagement in transportation tasks and carrying heavy loads. In the course of the Classic period (350–900 AD), diachronic changes affect the male sample only, which suggests a shift of occupational pattern and physical demands. This shift, in turn, reflects Xcambó's changing role as the centre of a densifying settlement area and its place in the trading activities of northern Yucatan. Other topics of discussion relate to general regional trends and local prehispanic subsistence strategies. Our conclusions emphasize the value of geometric long bone analysis in the reconstruction of activity patterns and lifestyles in ancient coastal settlements. Copyright © 2007 John Wiley & Sons, Ltd.     

Millerocaulis tekelili sp. nov., a new species of osmundalean fern from the Aptian Cerro Negro Formation (Antarctica)

Vera, E.I. iFirstarticle. Millerocaulis tekelili sp. nov., a new species of osmundalean fern from the Aptian Cerro Negro Formation (Antarctica). Alcheringa, 1–10. ISSN 0311-5518.

Ezequiel Ignacio Vera [evera@macn.gov.ar] División Paleobotánica, Museo Argentino de Ciencias Naturales 'Bernardino Rivadavia', Av. Angel Gallardo 470, C1524DJR, Buenos Aires, Argentina. Also affiliated with Área de Paleontología, Departamento de Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II, Ciudad Universitaria, C1428EGA, Buenos Aires, Argentina. Received 29.10.2010, revised 14.3.2011; accepted 24.3.2011.

A new species of the osmundalean fossil morphogenus Millerocaulis Tidwell emend. Vera, Millerocaulis tekelili sp. nov. is defined, based on several permineralized stems recovered from exposures of the Lower Cretaceous Cerro Negro Formation on Livingston Island, South Shetland Islands, Antarctica. This new species is characterized by the presence of an ectophloic–dictyoxylic siphonostele, inner parenchymatic and outer sclerotic cortices, heterogeneous sclerotic ring in the petiole bases, absence of sclerenchyma associated with the petiolar xylem trace, petiolar inner cortex with sclerenchyma strands and stipular wings having a large sclerenchyma bundle and several smaller ones. The presence of non-homogeneous sclerotic rings in the petiole bases allows this new species to be clearly distinguished from other Antarctic Millerocaulis, and suggests that it may represent an intermediate form in the evolutionary lineage leading from Millerocaulis to subgenus Claytosmunda of Osmunda.