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61.
Forensic Analysis of Digital Dynamic Signatures: New Methods for Data Treatment and Feature Evaluation 下载免费PDF全文
Jacques Linden M.Sc. Raymond Marquis Ph.D. Williams Mazzella Ph.D. 《Journal of forensic sciences》2017,62(2):382-391
This study explored digital dynamic signatures containing quantifiable dynamic data. The change in data content and nature necessitates the development of new data treatment approaches. A SignPad Omega digitizing tablet was used to assess measurement reproducibility, as well as within‐writer variation and the occurrence of correctly simulated features. Measurement reproducibility was found to be high except for pressure information. Within‐writer variation was found to be higher between days than on a same day. Occurrence of correct simulation was low for features such as signature size, trajectory length, and total signature time. Feature discrimination factors combining within‐writer variability and the occurrence of correctly simulated features were computed and show that signature size, trajectory length, and signature time are the features that perform the best for discriminating genuine from simulated signatures. A final experiment indicates that dynamic information can be used to create connections between simulation cases. 相似文献
62.
Little is known about the conditions strengthening or weakening the impact of a firm’s collaboration with research organizations on innovation performance. Thus, this study uses a sample of 542 manufacturing firms in Korea to examine how innovation orientation and firm size and age as internal characteristics influence the relationship between collaboration with research organizations and innovation performance. The results show that collaboration with research organizations has a positive impact on innovation performance. More importantly, this effect is stronger (weaker) for firms with a strong orientation toward exploration (exploitation). In addition, older or larger firms obtain greater benefits from collaboration with research organizations. This study contributes toward clarifying a firm’s collaboration with research organizations. 相似文献
63.
This article examines the well-documented relationship between early initiation or onset of criminal behavior and a heightened
risk of involvement in offending. Previous research examining this question conducted by Nagin and Farrington (Criminology
30:235–260, 1992a; Criminology 30:501–523, 1992b) used data from the Cambridge Study in Delinquent Development and found that: (1) onset age was correlated with offending
involvement; and (2) the correlation could be explained by stable individual differences in the propensity to offend rather
than a causal effect of early onset age. In this study, similar analytic methods are applied to data from the Second Philadelphia
Birth Cohort. This data set consists of all 13,160 males born in Philadelphia in 1958 who resided in the city continuously
from ages 10 to 18, slightly more than half of whom were non-white. Information from each of the youths was collected from
schools, juvenile justice agencies, other official sources and surveys. In a model that mimics previous analyses, we initially
found that an early age of onset is associated with greater subsequent involvement in delinquent behavior. When unobserved
criminal propensity was controlled, however, we found that a late rather than an early onset of delinquency was related to
future offending. In finding a state dependent effect for age of onset, our findings are contrary to propensity theory in
criminology. In finding that it is late rather early onset which puts youth at risk for future offending, our findings are
contrary to developmental/life course theory. Our results are more compatible with traditional criminological theory that
is friendly to state dependence processes, though they too have not to date articulated why a late onsetting of offending
might be particularly criminogenic.
Sarah Bacon is an Assistant Professor in the College of Criminology and Criminal Justice at the Florida State University, Tallahassee, Florida. She received her Ph.D. from the University of Maryland. Her research interests focus on quantitative methods, testing criminological theory, and capital punishment. This paper is an extension of work conducted for her M.A. thesis at the University of Maryland. Raymond Paternoster is Professor in the Department of Criminology and Criminal Justice at the University of Maryland and Faculty Affiliate of the Maryland Population Research Center, College Park, Maryland. He received his Ph.D. from Florida State University. His research interests focus on testing criminological theory, the relationship between events in adolescence and delinquency, and capital punishment. Robert Brame is Professor in the Department of Criminal Justice at the University of North Carolina Charlotte, Charlotte, North Carolina. He received his Ph.D. from the University of Maryland. His current research interests focus on domestic violence, the use of criminal records for screening purposes, linkages between adolescent employment and criminal behavior, and capital punishment. 相似文献
Raymond PaternosterEmail: |
Sarah Bacon is an Assistant Professor in the College of Criminology and Criminal Justice at the Florida State University, Tallahassee, Florida. She received her Ph.D. from the University of Maryland. Her research interests focus on quantitative methods, testing criminological theory, and capital punishment. This paper is an extension of work conducted for her M.A. thesis at the University of Maryland. Raymond Paternoster is Professor in the Department of Criminology and Criminal Justice at the University of Maryland and Faculty Affiliate of the Maryland Population Research Center, College Park, Maryland. He received his Ph.D. from Florida State University. His research interests focus on testing criminological theory, the relationship between events in adolescence and delinquency, and capital punishment. Robert Brame is Professor in the Department of Criminal Justice at the University of North Carolina Charlotte, Charlotte, North Carolina. He received his Ph.D. from the University of Maryland. His current research interests focus on domestic violence, the use of criminal records for screening purposes, linkages between adolescent employment and criminal behavior, and capital punishment. 相似文献
64.
Raymond B. Firehock John A. Gentry Julia W. Rogers James M. Simon Jr 《Intelligence & National Security》2018,33(5):774-783
The literature on intelligence analysis contains many references to the ‘review process’, the mechanism by which analysts’ drafts are converted into corporate products. Analysts whose drafts consistently navigate the process quickly and smoothly are regarded as star performers. Divining the practical meaning of organizational definitions of ‘good’ analysis and the personal preferences of specific senior reviewers is not easy, however. Analysts occasionally commit their understanding of reviewers’ stylistic preferences to paper, effectively providing style guides to help others. This essay presents and explains the development and implications of one such guide, which was designed to help analysts in CIA’s Office of Strategic Research in the early 1970s. 相似文献
65.
This article examines patterns of women’s cabinet representation across all presidential democracies in East and Southeast Asia since democratization. It demonstrates how the choice of female ministers differs across career backgrounds in presidential systems and further examines why young presidential systems in Asia are conducive to women’s access to ministerial power through professional career tracks. We argue that despite women’s successful performance in national legislative elections, women have been restricted to access the power resources necessary to target other political goals, such as cabinet positions, whereas democratic transition has provided broader avenues for women to emerge as professionals outside party politics. By analyzing original data on female ministers in East and Southeast Asia, the study finds that the share of women among professional ministers has increased over time, but women’s share among political ministers has not changed significantly. Additionally, the different qualifications of female politicians and professionals also make them eligible for appointment to different types of policy areas in terms of prestige and gender. Our analysis suggests that women’s cabinet representation has improved overall since democratic transition in Asia, but this improvement disguises contrasting outcomes in women’s cabinet status according to their career backgrounds. 相似文献
66.
The city-state of Singapore is proactive in harnessing policy experimentation to incubate innovations, transfer knowledge and facilitate collaborations across different public sectors. Given the country’s strong knack for pragmatism, international practices and lessons are usually first tested and adapted in policy experiments before scaling up to nationwide policies. Singapore’s practice of policy experimentation, however, has also demonstrated evolution over time. This article reviews the evolving role of experimentation in Singapore’s policy decision-making and implementation, and analyses pilot programmes in public housing to elicit the key attributes and commonalities of its policy experiments. It finds that policy experiments have been increasingly used after the 2011 general election, which witnessed a radical political rebalancing in Singapore’s governance history. Pilot projects have thus transformed from a utilitarian to citizen-centric, design-thinking approach after 2011. Pilot programmes are used for multiple purposes in policy innovations, among which civil service mentoring, knowledge transfer and cross-boundary collaboration are the values primarily pursued. The article discusses the contributions of the findings to the literature and policy implications for practitioners. 相似文献
67.
Youth who participate in service activities differ from those who do not on a number of key demographic characteristics like socio-economic status and other indicators of risk; and most studies demonstrating positive outcomes among service participants employ small non-representative samples. Thus, there is little evidence as to whether the outcomes associated with service participation are similar among students with varying levels of risk. The National Household Education Survey of 1999, a large nationally representative cross-sectional data set that focused on community service, was analyzed to investigate associations between the risk status of 4,306 adolescent students (50.2% female; 63.3% European American, M age?=?15.9), their participation in community service, and their academic adjustment, behavioral problems, and civic knowledge. Because adolescents who participate in service differ from those who do not with respect to demographic characteristics, propensity score analyses were used to correct for potential selection bias in the examination of these relationships. Analyses tested competing theoretical models of service??protective versus compensatory??among students at varying levels of risk, and suggested that service acts as a compensatory factor with respect to academic, behavioral, and civic outcomes. Propensity score analyses revealed patterns suggesting that, in some cases, students with certain demographic profiles that are themselves related to the likelihood of service participation may benefit from service participation more than others. Findings are discussed in terms of their significance for adolescent development, for planning service programs, and for educational policy. 相似文献
68.
Lee Baker 《Women's Studies: An inter-disciplinary journal》2013,42(1):53-65
When people talk about their lives, people lie sometimes, forget a little, exaggerate, become confused, and get things wrong. Yet they are revealing truths … the guiding principle for [life histories] could be that all autobiographical memory is true: it is up to the interpreter to discover in which sense, where, and for what purpose. (Passerini 197) 相似文献
69.
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