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21.
Bader, John B. Taking the Initiative: Leadership Agendas in Congress and the "Contract with America." Washington, DC: Georgetown University Press, 1996. Pp. xiv, 278. $19.95, softbound.

Campbell, James E. Cheap Seats: The Democratic Party's Advantage in U.S. House Elections. Columbus: Ohio State University Press, 1996. Pp. xxiv, 336. $22.00, softbound.

Evans, C. Lawrence and Walter J. Oleszek. Congress Under Fire: Reform Politics and the Republican Majority. New York: Houghton Miffin Company, 1997. Pp. xiii, 190. $15.56, softbound.

Koopman, Douglas L. Hostile Takeover: The House Republican Party, 1980-1995. Lanham, MD: Rowman &; Littlefield Publishers, 1996. Pp. viii, 181. $21.95, softbound.

Loomis, Burdett A. The Contemporary Congress. New York: St. Martin's Press, 1996. Pp. xii, 196. $45.00 hardbound, $21.95 softbound.  相似文献   
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Agricultural research in marginal dry areas can contribute to reducing poverty through the development of technological, institutional and policy options for poor farmers. Such research should address diversified opportunities and development pathways. This article analyses the diversity of livelihood strategies of rural people living in the Khanasser Valley in northwestern Syria, an area that is typical of marginal drylands. It proposes an operational classification of households based on their different livelihood strategies, applying an integrated methodology within a Sustainable Livelihoods framework. Households are classified into three clusters: agriculturists, labourers and pastoralists. The article examines the diversity of livelihoods involved, and considers where and how research should be directed to have greatest impact on poverty. Given that rural households are not homogeneous but dynamic entities, with diverse assets, capabilities and opportunities, the definition of household typologies can help to target development research. The article concludes that while agriculturists benefit most, poor labourers with enough land can also gain from pro‐poor agricultural research. The poorest households with little land, and pastoralists, benefit little or only indirectly.  相似文献   
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This study presents new geochemical data on dolerites from the Plussulien and Beulin Neolithic quarries in the Massif Armoricain (France) and for dolerite samples from their surrounding local regions. Using the major and trace element data obtained on these rocks, the two quarries and regional dolerite occurrences appear to be clearly distinct. Consequently, a set of chemical criteria is proposed to identify the dolerite axes produced uniquely at the Beulin quarry and to discriminate between the axes produced in the surrounding local region of Beulin, but outside the quarries, and those produced in the local region of Plussulien. These results could also be used, for example, to identify the existence of undiscovered quarries in the Beulin region. This work may provide the breakthrough needed to understand stone axe exchanges during the Neolithic times in north‐western France and beyond.  相似文献   
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In less than a decade, archaeologists have seen the discipline increasingly entangled in the thriving dispute concerning the political and ethical responsibility the profession has to face, in the context of contemporary armed conflict. The recent western military interventions, in Iraq, Afghanistan and the Middle East, ensured many archaeologists and heritage professionals became more involved with military institutions. This trend was counterbalanced by the fact that other members of the academic community strongly distanced themselves from this professional choice, challenging their colleagues on ethical grounds. This paper will put the debate in a wider context, and analyse the issue from several angles, in-order to understand whether a new conceptual framework could be of help in the analysis of this ethical dilemma. The intention is to explore if, when, and under what circumstances, archaeologists should get involved with the military to protect cultural heritage. This exploration will start with the evaluation of some of the limits and contradictions intrinsic in the ideals behind international law. Then it will move towards more contextualized and politically dense considerations and give a closer look to some possible practical solutions.  相似文献   
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Neutron activation (NAA) and petrographic analyses were carried out on Late and Inca Period pottery from 15 archaeological sites and several clay samples in the southern Abaucán Valley, Catamarca, Argentina. The results from the NAA and petrographic analyses provide new data concerning local versus non‐local pottery production and vessel exchange for these two pre‐Hispanic cultural periods. The chemical data demonstrate the use of different clay sources over time until the Inca appearance in the region, when a more structured and controlled production is observed. Petrographic analyses show a similar change in the ceramic paste recipes used by ancient potters.  相似文献   
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