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101.
Jill D. Humphreys Glenn Porter Michael Bell 《Forensic Science International Supplement Series》2008,178(1):46-53
Research into fingermark enhancement techniques has traditionally used visual comparisons and qualitative methods to assess their effectiveness based on the quality of the developed fingermark. However, with increasing research into the optimisation of these techniques the need for a quantitative evaluative method has arisen. Parameters for acceptable fingerprint quality are not well defined and generally encompass clear, sharp edges and high levels of contrast between the fingermark ridges and background material. Using these current parameters, a conclusive measurement of fingerprint quality and thus the effectiveness of development techniques cannot be achieved.This study presents a model through which an aspect of fingerprint quality can be objectively and impartially measured based on a relative contrast index, constructed through measuring the reflective intensity of the fingermark ridges against the background material. Using a fibre-optic spectrophotometer attached to a microscope with axial illumination, the intensity counts of the ridge detail and background material were measured and a logarithmic contrast index constructed. The microscope and spectrophotometer parameters were experimentally tested using a standard colour resolution chart with known reflective properties. The protocol was successfully applied to four sample groups: black inked fingerprints on white paper; latent fingermarks on white paper developed separately with ninhydrin and physical developer; and fingermarks in blood deposited on white tiles and enhanced with amido black. The contrast indices obtained quantitatively reflect the level of contrast and provide an indication of fingerprint quality through a numerical representation rather than previous qualitative methods. It has been suggested that the proposed method of fingerprint quantification may be viable for application in the forensic research arena as it allows the definitive measurement of contrast to aid the evaluation of fingermark detection and enhancement techniques. 相似文献
102.
103.
Thirsa Kraaijenbrink George L. van Driem Karma Tshering of Gaselô Peter de Knijff 《Forensic science international》2007
We studied the allele frequency distribution of 21 autosomal STR loci contained in the AmpFlSTR® Identifiler™ (Applied Biosystems), the Powerplex®16 (Promega) and the FFFL (Promega) multiplex PCR kits among 936 individuals from the Royal Kingdom of Bhutan. As such these are the first published autosomal DNA results from this country. 相似文献
104.
Few anticipated the radical program of public sector reform introduced by the Kennett government. A commitment to downsizing, markets and privatisation has transformed employment relations in the Victorian public sector. Familiar institutions have disappeared, major employment areas have been restructured, and jurisdiction for much public sector industrial relations has been transferred to the Commonwealth. Despite some industrial unrest, and occasional successes, public sector unions have been unable to fend off this ideological assault on traditional patterns of public sector employment. 相似文献
105.
Purpose. Empirical studies have demonstrated that feigning amnesia undermines memory for a mock crime. Not much is known about the effects of other culpability‐reducing strategies on memory. The present study investigated what strategies participants use when they are instructed to minimize culpability and if these strategies undermine memory to a similar extent as claiming amnesia. Methods. Participants performed a mock crime. Next, they were either instructed to minimize culpability for this mock crime in a simulated interrogation or asked to respond honestly. One week later, memory for the mock crime was tested. Results. None of the participants claimed amnesia when trying to minimize culpability. Conversely, all participants fabricated an alternative account of their role in the crime. Compared with responding honestly on both tests, fabricating an alternative story on the first test undermined memory for the mock crime in terms of commission errors. Correct recall was unaffected. It appeared that this effect was related to story length: the longer the fabricated story, the more the commission errors when telling the truth 1 week later. Conclusions. Fabricating an alternative story (i.e. lying) did not compromise correct recall, but induced more commission errors. The findings are discussed in terms of possible underlying mechanisms. 相似文献
106.
The equality rule is an important coordination rule in symmetric public good dilemmas. Although prior research emphasized
that people use the equality rule out of efficiency concerns (as it helps to obtain the public good in the most efficient
manner among group members), it may also reflect a true preference for fairness. More precisely, research examining emotional
and retributive reactions as a result of a violation of the equality rule by a fellow group member showed that equality indeed
is related to people’s personal values and what they consider to be fair. The present paper suggests that a violation of the
equality rule results in emotional reactions, and these emotional experiences encourage further retributive actions. The different
reactions following an equality violation are described as a function of three features: (1) the motives to use equality,
(2) attributions for explaining the violation, and (3) the honesty of the given explanation.
The write-up of this paper was partly supported by GOA/05/04 from the Research Fund of the Katholieke Universiteit Leuven.
The research and write-up was supported by a fellowship of the Netherlands Organization for Scientific Research (NWO, Grant
No. 016.005.019), awarded to the second author. 相似文献
107.
The limited literature on the topic speculates that the rate of ADHD would be higher among incarcerated youth than found in
the general population. However, to our knowledge no such published figures exist for juveniles in the United States. This
study investigates the likelihood of ADHD diagnosis among 453 incarcerated youth and compares and contrasts a variety of demographic,
social, educational, psychological, and criminal characteristics to the general literature on ADHD. Both similarities and
differences are reported.
This project was supported by Grant #99-RT-VX-K020 awarded by the National Institute of Justice. Points of view in this document
are those of the author and do not necessarily represent the official position or policies of the U.S. Department of Justice.
An early version of the paper was presented at the annual meeting of the Academy of Criminal Justice Science in Chicago, Illinois. 相似文献
108.
109.
The initiative for this symposium issue arose out of a series of five ESRC seminars called 'Implementing Public Policy: Learning from Each Other'. The aim of the seminars was to revitalize interest amongst public policy researchers about implementation studies, to advance the development of ideas about public policy implementation and to assess the relevance of academic models of public policy implementation to those who deliver public services. 相似文献
110.