Fingermark detection on non-porous and semi-porous surfaces using NaYF4:Er,Yb up-converter particles

This article describes the first use of an anti-Stokes material, or up-converter, for the development of latent fingermarks on a range of non-porous surfaces. Anti-Stokes materials can absorb long-wavelength light and emit light at a shorter wavelength. This property is unusual in both natural and artificial materials and so fingermark detection techniques based on anti-Stokes luminescence are potentially sensitive and selective. Latent fingermarks on luminescent and non-luminescent substrates, including Australian polymer banknotes (a well-known 'difficult' surface), were developed with sodium yttrium tetrafluoride doped with erbium and ytterbium (NaYF(4):Er,Yb) by dry powder, wet powder, and cyanoacrylate staining techniques. This study illustrates the potential of up-converter phosphors for the detection of latent fingermarks.     

Defending the sanctity of life principle: a reply to John Keown

This article is a response to Professor John Keown's criticism of my article "Finding a Way Through the Ethical and Legal Maze: Withdrawal of Medical Treatment and Euthanasia" (2005) 13(3) Medical Law Review 357. The article takes up and responds to a number of criticisms raised by Keown in an attempt to further the debate concerning the moral and legal status of withdrawing life-sustaining measures, its distinction from euthanasia, and the implications of the lawfulness of withdrawal for the principle of the sanctity of life.     

Methods for the enhancement of fingermarks in blood

Fingermarks formed in or by blood often require specific development techniques. This review examines techniques and materials that may be used to enhance and record fingermarks deposited in blood or fingermarks generated by blood-contaminated papillary ridges. A large number of techniques are presented here and are discussed from a chemical as well as practical perspective. It is concluded that an optimized sequence of techniques targeting both latent (non-bloody) and bloody fingermarks must be applied to detect and enhance the maximum number of marks, and therefore optimize the information content from exhibits that may bear marks in blood.     

Styryl dye coated metal oxide powders for the detection of latent fingermarks on non-porous surfaces

Conventional fingermark powders rely on contrast induced by absorption/reflection (e.g. black powder) or luminescence in the visible region (e.g. Blitz Green(?)). In most cases, these powders provide sufficient contrast; however, in some circumstances surface characteristics can interfere with the visualisation of powdered fingermarks. Visualisation in the near infra-red (NIR) region, however, has been shown to eliminate interferences commonly encountered in the visible region. In this study, a mixture of rhodamine 6G and the NIR laser dye styryl 11 (STaR 11) was coated onto an aluminium oxide nanopowder and then mixed with silver magnetic powder to develop and visualise fingermarks in the NIR. When compared to Blitz Green(?), it was determined that the STaR 11 magnetic powder was better suited for marks deposited on textured surfaces and for older marks, whereas Blitz Green(?) performed better on smooth glossy surfaces. The ability of the STaR 11 mixed dye formulation to be visualised in both the visible and NIR regions also provides a significant advantage over conventional luminescent fingermark powders.     

The Moving Home Effect: A Quasi Experiment Assessing Effect of Home Location on the Offence Location

Objectives

This study aims to test whether the home location has a causal effect on the crime location. To accomplish this the study capitalizes on the natural experiment that occurs when offender??s move, and uses a unique metric, the distance between sequential offenses, to determine if when an offender moves the offense location changes.

Methods

Using a sample of over 40,000 custodial arrests from Syracuse, NY between 2003 and 2008, this quasi-experimental design uses t test??s of mean differences, and fixed effects regression modeling to determine if moving has a significant effect on the distance between sequential offenses.

Results

This study finds that when offenders move they tend to commit crimes in locations farther away from past offences than would be expected without moving. The effect is rather small though, both in absolute terms (an elasticity coefficient of 0.02), and in relation to the effect of other independent variables (such as the time in between offenses).

Conclusions

This finding suggests that the home has an impact on where an offender will choose to commit a crime, independent of offence, neighborhood, or offender characteristics. The effect is small though, suggesting other factors may play a larger role in influencing where offenders choose to commit crime.     

Implications for the prevention of aggressive behavior within psychiatric hospitals drawn from interpersonal communication theory

Although interpersonal style is a defining feature of personality and personality disorder and is commonly identified as an important influence on aggressive behavior, treatment completion, and the development of an effective therapeutic alliance, it is rarely considered in practice guidelines for preventing, engaging, and managing patients at risk of aggression. In this article, the authors consider three potential applications of interpersonal theory to the care and management of patients at risk of aggression during hospitalization: (a) preventing aggression through theoretically grounded limit setting and de-escalation techniques, (b) developing and using interventions to alter problematic interpersonal styles, and (c) understanding therapeutic ruptures and difficulties establishing a therapeutic alliance. Interpersonal theory is proposed to offer a unifying framework that may assist development of intervention and management strategies that can help to reduce the occurrence of aggression in institutional settings.     

Going green together? Brownfield remediation and environmental justice

Research on the location of hazardous facilities that contribute to environmental degradation indicates an unequal distribution of such sites within low socioeconomic status communities. In this paper, we contribute to research investigating whether there are similar patterns of unequal prioritization in environmental remediation, by assessing cleanup of a broader, more diverse set of contaminated sites, all brownfields that receive federal grants, with a finer level of geographic detail than previous studies. First, we set the context by assessing the characteristics of the communities in which brownfield sites are currently located. Then, we compare the likelihood and temporal prioritization of cleaning up brownfield sites based on the composition of the neighborhoods in which they are located. We find that brownfield sites are more likely to be located in both poor and predominantly minority communities, but while sites located in poor communities tend to be cleaned up relatively quickly, sites located in communities with larger minority populations tend to be cleaned up more slowly.     

Collaborative Approaches to Regional Governance – Lessons from Victoria

Victoria's Regional Management Forums were established in 2005 to facilitate collaboration between Victorian Government departments and local government in each of Victoria's eight administrative regions. At the time they were established, Regional Management Forums were a pioneering experiment in collaborative governance. Seven years after their establishment, this paper examines the Regional Management Forums to consider how they have evolved, what role they now serve, and what lessons can be learned. This paper finds that Victoria's Regional Management Forums have been able to adapt to an evolving policy and governance context. While not without their challenges, Regional Management Forums have given rise to regional‐scale thinking and collaborative relationships.     

Explicit inflation targets and central bank independence: friends or foes?

The paper studies the relationship between two institutional innovations in monetary policy of the past few decades: central bank independence (CBI) and explicit inflation targeting (EIT). The aim is to make inferences about the optimal institutional design of monetary policy, and the right sequencing of policy reform. Our reduced-form model unifies several approaches in the literature, and offers three novel institutional findings (that we square with existing empirical evidence). First, instrument-CBI is a complement to EIT, whereas goal-CBI acts as a strategic substitute for EIT in ensuring low inflation and policy credibility. Second, out of these two ‘commitment technologies,’ EIT is shown to be socially superior to goal-CBI. Third and controversially, countries that first implement goal-CBI are then less likely to adopt the desirable EIT regime. This is because independent central bankers may have less need to do so (their independence partly substitutes for EIT), as well as less willingness to do so (due to a higher degree of accountability associated with a transparently legislated target). Our analysis therefore implies that developing and emerging market countries should go down the New Zealand route—legislate EIT together with instrument-CBI, but stay clear of goal-CBI. Unfortunately, many transition countries have followed the opposite Fed/Bundesbank route, which we show may have adverse welfare consequences through several channels.