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Sphenophytes are a common floral element in the Triassic of Gondwana. Most sphenophyte compression fossils have been conventionally assigned to a few, presumably very widespread species of Neocalamites based on vegetative features of the stems (or pith casts) and the foliage. During recent decades, however, new reports on morphological and anatomical details of some of these fossils have cast doubt on the systematic affinities of many Gondwanan Triassic sphenophytes. Here we describe Neocalamites suberosus (Artabe & Zamuner) nov. comb. et emend. and Schizoneura africana Feistmantel emend. from several Triassic deposits in the central Transantarctic Mountains and Victoria Land, East Antarctica. The material enables a critical reevaluation of morphological and anatomical features that have been historically used to define the two genera, including leaf-base morphology, degree of leaf fusion, stem vasculature and vallecular canals, and features of the nodal diaphragm. The diagnoses of Neocalamites and Schizoneura are emended so that they more accurately reflect recent advances in our understanding of the anatomy and ontogeny of these plants.

[Benjamin Bomfleur [bbomfleur@ku]edu], Rudolph Serbet [serbet@ku.edu], Edith L. Taylor [etaylor@ku.edu] and Thomas N. Taylor [tntaylor@ku.edu], Department of Ecology and Evolutionary Biology, and Biodiversity Institute, University of Kansas, Lawrence, KS 66045, USA; Ignacio H. Escapa [iescapa@mef.org.ar], CONICET—Museo Paleontológico Egidio Feruglio, Trelew, Chubut 9100, Argentina. Received 4.7.2012; revised 22.12.2012; accepted 7.1.2013.

Bomfleur, B., Escapa, I.H., Serbet, R., Taylor, E.L. & Taylor, T.N., 2013. A reappraisal of Neocalamites and Schizoneura (fossil Equisetales) based on material from the Triassic of East Antarctica. Alcheringa 37, 1–17. ISSN 0311-5518.  相似文献   
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An intergenerational comparison of education attainment and empowerment across two generations of Kenyan rural women population was undertaken. The study employed a longitudinal analysis of quantitative data derived from the Demographic and Health Survey databases. The survey captures relevant demographic background on the two generations of women. The study undertakes to compare the education attainment and empowerment outcome measures of socioeconomic status, household size, and fertility rates between the two cohorts of women. It also contrasts the experience of the women who accessed education in the era characterized by the welfare state (1989 cohort) with those who came of age in the austerity years of neoliberalism (2008/2009 cohort). The research established that the majority of women in both cohorts had limited access to education. However, women who accessed more education were more likely to show characteristics of empowered individuals – they had smaller households, fewer children, and were relatively wealthier. The results demonstrate that meaningful empowerment through education can only be realized if more women access levels of education beyond the basic education focus that is dominant in international development discourse.  相似文献   
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Book reviews     
Sponsorship, Urban Regeneration and Post‐Communism

Sir Roy Shaw (ed) The Spread of Sponsorship in the Arts, Sport, Education, the Health Service and Broadcasting. (Newcastle upon Tyne: Bloodaxe Books 1993)

Franco Bianchini & Michael Parkinson (eds) Cultural Policy and Urban Regeneration: The West European Experience (Manchester: Manchester University Press 1993)

Robert M. Reichardt & Georg Muskens (eds) Post‐communism, the Market and the Arts: First Sociological Assessments (Frankfurt am Main: Peter Lang 1992)  相似文献   
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