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91.
Scholars who work with time series quasi-experiments have identified "publicity" as a problem in the interpretation of such research designs. The present study utilizes three examples of the role of publicity in three social interventions: the Romanian abortion restriction of 1966; the British breathalyzer crackdown; and, the 1978 Georgia Status Offender Act. The authors conclude that publicity is most likely to be a problem in internal validity when (1) the intervention is not truly abrupt and (2) a broad "policy" is evaluated as opposed to a "program." 相似文献
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We describe a novel method for rapidly identifying and distinguishing between different DNA sequences using short tandem repeat (STR) analysis and DNA microarrays. The method can be used to deduce identity, length, and number of STRs of the target molecule. We refer to this technique as the "variable-length probe array" method for STR profiling (VLPA). The method involves hybridization of the unknown STR target sequence to a DNA microarray displaying complementary probes that vary in length to cover the range of possible STRs. A post-hybridization enzymatic digestion of the DNA hybrids is then used to selectively remove labeled single-stranded regions of DNA from the microarray surface. The number of repeats in the unknown target is then deduced based on the pattern of target DNA that remains hybridized to the array. This DNA profiling technique is useful for performing forensic analysis to uniquely identify individual humans or other species. 相似文献
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Allan, Loughlin and Walker represent leading theorists within the realm of public law analysis. Accordingly, when such theorists write on a similar topic, such as that of the theory of constitutionalism, it can be assumed that their analysis and evaluation of the theory represents a ‘realistic’ account. However, close examination of their writings does not reveal similarity but instead much divergence, even incompatibility. This then raises the question, how can such diversity represent reality? If all three theorists are examining the same phenomenon then surely there must be some similarity between their accounts for there to be reality? Alternatively, if all the perceptions of the theorists are indeed real, then perhaps it is the way that public lawyers represent reality that needs to be examined. 相似文献
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Darren Tofts 《社会征候学》2013,23(2):263-272
This paper considers the discursive conditions within on‐line communication spaces. The increasing use of electronic mail and internet relay chat as a form of communication, and the growing facination with multi‐user domains as a powerful dialogic space, has contributed to an emergent culture of virtual communities, in which participants engaged in dialogue no longer need to be present to ‘talk’ to one another. Indeed, the concept of telepresence is predicated on the idea that remote speakers can engage in a shared experience that is every bit as compelling as actually being in the same location. In order for this virtual communication space to be vivid, and to create the illusion o; f procimity, it has to efface itself as a signifying system. In other words, it has to behave according to the logic of oral rather than written communication. One assumption considered in the paper is that on‐line discursive practice is usually conducted as if it were a mode of speech, rather than writing. 相似文献
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AN INTRODUCTION TO THE LAW OF TRUSTS. By Simon Gardner. [Clarendon Press. Oxford. 1990. First Edition. 250 pp. £25.00 (hardback), £11.95 (paperback).] EXPLAINING CONSTRUCTIVE TRUSTS. By Gbolahan Elias. [Clarendon Press. Oxford. 1990. First Edition. 177 pp. £25.00 (hardback).] CHARLESWORTH &; PERCY ON NEGLIGENCE. By R. A. Percy. [Sweet &; Maxwell. Eighth Edition. 1,232 pp. incl. index. £135.00 (hardback).] CLARITY FOR LAWYERS. By Mark Adler. [The Law Society. 1990. First edition. 128 pp. £10.00 (paperback).] PLANNING LAW AND PROCEDURE. By A. E. Telling. [Butterworths. Eighth edition. 385 pp. incl. index. £16.95 (paperback).] PRACTICAL APPROACH TO PLANNING LAW. By V. Moore. [Blackstone Press Ltd. Second edition. 401 pp. incl. index &; appendices. £19.95 (paperback).] THE EVIDENCE OF CHILDREN. By J. R. Spencer and R. Fun. [Blackstone Press. 1990. 362 pp. £19.50 (paperback).] CROSS ON EVIDENCE. By C. Tapper. [Butterworths. 1990. Seventh edition. 757 pp. £22.95 (paperback).] EMPLOYMENT LAW. By C. J. Carr and P. J. Kay. [M. &; E. Handbook. Pitman Publishing. 1990. Fifth edition, xxiv &; 232 pp. (inc. index). £7.99 (paperback).] REVISION WORKBOOK: LAND LAW. By Gordon Henry. A PARENTS’ GUIDE TO THE LAW. By Jeannie Mackie and Lesley Taylor [Penguin Books. 1990. 419 pp. (inc. index). £7.99 (paperback).] A GUIDE TO INHERITANCE CLAIMS. By Nasreen Pearce. [Fourmat Publishing. 1989. 162 pp. £12.95 (paperback).] 相似文献