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301.
Although the incidence of unwanted pregnancies has declined since the early 1970s (Pratt and Horn, 1985; Anderson, 1981; Westoff, 1981), large proportions of women continue to experience unwanted pregnancies (Forrest, 1987; Pratt, 1985). Of particular concern to researchers is the well-being of mothers and children from pregnancies that are unwanted or unplanned. In 1982, among women who were ever married, 10 percent of all births were unwanted, and 28 percent mistimed. Among never-married women, fully 25 percent of all births were unwanted, and about half the remaining births were mistimed (Pratt and Horn, 1985). The focus of this research is the exploration of determinants of wantedness among women whose first pregnancies result in live births. Our analyses reflect interest in whether and how pregnancy wantedness is affected by family background characteristics, early formed attitudes, value systems, and socioeconomic aspirations, as well as maternal socio-demographic status at the time of the pregnancy. Policy implications emerge from the findings, particularly concerning differences and similarities in the process determining unwanted first births for blacks and whites.  相似文献   
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The enforcement of the SMCRA in Oklahoma has led to improvements and transformations in the coal industry, state and federal regulatory agencies and the public. The catalyst for these changes was the federal takeover of inspection and enforcement of the SMCRA in Oklahoma with the state carrying on all other mining regulatory activities from 1984 through 1987. This pattern of cohabitation differed from that in Tennessee where OSM took over all enforcement of the SMCRA or that in states that enter into cooperative agreements to provide state regulation of coal mining on federal lands within the state. Cohabitation in Oklahoma produced a new, more positive attitude toward cooperative federalism by both federal and state regulatory bodies that might serve as a model for other states with OSM maintaining state agency support for policy objectives while allowing the state reasonable decisional discretion.  相似文献   
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Scales for photography provide a geometrical reference in the photographic documentation of a crime scene, pattern, or item of evidence. The ABFO No. 2 Standard Reference Scale (1) is used by the forensic science community as an accurate reference scale. We investigated the overall accuracy of the major centimeter graduations, internal/external diameters of the circles, error in placement of the circle centers, and leg perpendicularity. Four vendors were selected for the scales, and the features were measured on a vision‐based coordinate measurement system. The scales were well within the specified tolerance for the length graduations. After 4 years, the same scales were measured to determine what change could be measured. The scales demonstrated acceptable stability in the scale length and center‐to‐center measurements; however, the perpendicularity exhibited change. The study results indicate that scale quality checks using certified metal rulers are good practice.  相似文献   
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Book reviews     
Pride of Small Nations: The Caucasus and Post‐Soviet Disorder Suzanne Goldenberg London: Zed Books, 1994, xv, 233 pp, 1 map

The North Caucasus: Minorities at a Crossroads Helen Krag and Lars Funch Report of The Minority Rights Group International, 94/5, 45 pp (incl. map), 1994, £4.95

The Legacy of History in Russia and the New States of Eurasia. The International Politics of Eurasia Vol 1 Series editors, S. Frederick Starr (editor), Bruce Parrott and Karen Dawisha Armonk, New York: M. E. Sharpe, 1994, xiii, 328 pp, $49.95 hb, $19.95 pb

Central Asia Reader: The Rediscovery of History H. B. Paksoy (editor) Armonk, New York: M. E. Sharpe, 1994, ix + 206 pp $60 hb, $21.95 pb

National Identity and Ethnicity in Russia and the New States of Eurasia. The International Politics of Eurasia Vol 2 Roman Szporluk (editor) Series editors, Bruce Parrott and Karen Dawisha Armonk, New York: M. E. Sharpe, 1994, xiii, 328 pp, $49.95 hb, $19.95 pb

Muslim Communities Reemerge: Historical Perspectives on Nationality, Politics, and Opposition in the Former Soviet Union and Yugoslavia Andreas Kappeler, Gerhard Simon and Georg Brunner, editors of the German edition: Edward Allworth, editor English edition Durham, North Carolina: Duke University Press, 1994, Caroline Sawyer, trans., xiv, 365 pp, $54.95 hb, $24.95 pb

The Making of Iran's Islamic Revolution Mohsen M. Milani Boulder, CO: Westview Press, 1994, 268 pp

Torture and Modernity: Self, Society, and State in Modern Iran Darious M. Rejali Boulder, CO: Westview Press, 1994, 289 pp

China's Minorities: Integration and Modernization in the Twentieth Century Colin Mackerras Hong Kong and Oxford: Oxford University Press, 1994, viii, 341 pp, $79.00

High Tartary Owen Lattimore New York, Tokyo, London: Kodansha International, 386 pp, illus, £11.99

Turkestan Reunion Eleanor Holgate Lattimore New York, Tokyo, London: Kodansha International, 323 pp, illus, £10.99

Islamic Urban Studies: Historical Review and Perspectives Masashi Haneda and Toru Miura (editors) London: Kegan Paul International, 1995, 365 pp, index, biblio, £55  相似文献   

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Abstract: Mitochondrial DNA (mtDNA) analysis has proved useful for forensic identification especially in cases where nuclear DNA is not available, such as with hair evidence. Heteroplasmy, the presence of more than one type of mtDNA in one individual, is a common situation often reported in the first and second mtDNA hypervariable regions (HV1/HV2), particularly in hair samples. However, there is no data about heteroplasmy frequency in the third mtDNA hypervariable region (HV3). To investigate possible heteroplasmy hotspots, HV3 from hair and blood samples of 100 individuals were sequenced and compared. No point heteroplasmy was observed, but length heteroplasmy was, both in C‐stretch and CA repeat. To observe which CA “alleles” were present in each tissue, PCR products were cloned and re‐sequenced. However, no variation among CA alleles was observed. Regarding forensic practice, we conclude that point heteroplasmy in HV3 is not as frequent as in the HV1/HV2.  相似文献   
309.
The European Court of Justice's (ECJ's) recent Persche judgment poses important questions about the relationship between taxation of gifts and charitable purposes in the light of EC law requirements. This article argues that by applying its established case‐law to the matter of donors to foreign recipient bodies, the ECJ takes a position on the social role of both charities and tax deduction. Moreover, the position of the ECJ clearly paves the way for tax authorities to check the objectives and the values pursued by recipient bodies seeking tax‐preferred status, a situation that recalls a similar power recognised under specific circumstances of the US Internal Revenue Services. Arguably, the ECJ case‐law has more profound consequences on charitable action, since it seems that the power accorded to tax authorities of the Member States to check the purposes of charitable organisations leads to a cosmopolitan apprehension of charitable action while it pushes charities to enhance transparency in their activities.  相似文献   
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