Fluorescence of a Natural Fluorophore as a Key to Improve Fingerprint Contrast Image

The optical and morphological properties of resveratrol were investigated. This nontoxic fluorescent natural material, emitting in the visible blue light, was used as an optical marker, enabling the enhancement of the image contrast coming from relief pictures marked on challenging surfaces. By applying appropriated imaging softwares, this marker was verified to be very useful in the latent fingerprint recognition deposited on different wood surface types, mainly those with high level of roughness, where conventional forensic materials do not allow effective fingerprint image visualization.     

Whole Plastome Sequences of Two Drug-Type Cannabis: Insights Into the Use of Plastid in Forensic Analyses

DNA is one of the fastest growing tools in forensic sciences, increasing reliability in forensic reports and judgments. The use of DNA has increased in different areas of the forensic sciences, such as investigation of plant species, where plastid DNA has been used to elucidate and generate evidence in cases of traceability of genetically modified and controlled plants. Even with several advances and the practice of using DNA in forensic investigations, there are just few studies related to the identification of genetic tools for the characterization of drug and nondrug-types of Cannabis. Herein, the whole plastomes of two drug-type Cannabis are presented and have their structures compared with other Cannabis plastomes deposited in the GenBank, focusing in the forensic use of plastome sequences. The plastomes of Cannabis sativa “Brazuka” and of the hybrid Cannabis AK Royal Automatic presented general structure that does not differs from the reported for other C. sativa cultivars. A phylogenomic analyses grouped C. sativa “Brazuka” with the nondrug C. sativa cultivars, while the hybrid Cannabis AK Royal Automatic placed isolated, basal to this group. This suggests that the analysis of plastomes is useful toward genetic identification of hybrids in relation to C. sativa.     

Allele frequencies of nine STR loci—D16S539, D7S820, D13S317, CSF1PO, TPOX, TH01, F13A01, FESFPS and vWA—in the population from Alagoas, northeastern Brazil

The polymorphism of nine STR loci has been studied in a sample of 598 individuals from the population of Alagoas, Northeastern Brazil. Determination of the allele frequencies as well as of several commonly used statistics in forensic and paternity testing were defined. The most polymorphic loci were TH01 and D7S317. The exact test demonstrated that the nine loci analyzed in the population have no deviation from Hardy–Weinberg equilibrium (P>0.05).     

Using Cluster Analysis and ICP‐MS to Identify Groups of Ecstasy Tablets in Sao Paulo State,Brazil

The variations found in the elemental composition in ecstasy samples result in spectral profiles with useful information for data analysis, and cluster analysis of these profiles can help uncover different categories of the drug. We provide a cluster analysis of ecstasy tablets based on their elemental composition. Twenty‐five elements were determined by ICP‐MS in tablets apprehended by Sao Paulo's State Police, Brazil. We employ the K‐means clustering algorithm along with C4.5 decision tree to help us interpret the clustering results. We found a better number of two clusters within the data, which can refer to the approximated number of sources of the drug which supply the cities of seizures. The C4.5 model was capable of differentiating the ecstasy samples from the two clusters with high prediction accuracy using the leave‐one‐out cross‐validation. The model used only Nd, Ni, and Pb concentration values in the classification of the samples.     

Public Policy： The Reality in the Practice of Management Agreements

This paper presents the new version of public policy for government transparency, outlining state＇s required functions, in the context of economic globalization, to enable fulfillment of social demands and Brazil＇s competitive insertion in international markets. In this sense, public policies were adjusted to the role of social and economic development promoter and regulator： Strengthening government capacity for formulating and evaluating them; increasing governance, i.e., government＇s ability to implement public policies, from the viewpoint of efficiency, efficacy, and effectiveness through the introduction of new organizational models and new partnerships with civil society; establishing management contracts, agreements, and partnership terms; and finally modernizing public management. E-government （e-gov） includes three of the seven lines of action of the information society： universal service, government available for all and advanced infrastructure. The Integration and Intelligence Government Information System （i3-Gov） was developed in open platform. Thus, new trends in shared and interagency management for public, productive, and growing third （voluntary） sectors are contemplated. The paper presents the results obtained with the Federal Government Voluntary Transfers Integrated System （SICONV）, which adequately fulfills the expectations of service and transparency, but needs improvement in regard to government participation without state interference.     

The Political Economy of Institutions,Stability and Investment: A Simultaneous Equation Approach in an Emerging Economy. The Case of South Africa

The modern theory of investment identifies the importance of uncertainty to investment. A number of empirical studies have tested the theory on South African time series, employing political instability measures as proxies for uncertainty. This paper verifies that political instability measures are required in the formulation of the investment function for South Africa. It also establishes that there are distinct institutional factors that influence the uncertainty variable such as property rights and crime levels. We find that rising income and property rights lower political instability, and that rising crime levels are positively related to political instability. The inference is that political instability in South Africa may not represent uncertainty directly, since it is systematically related to a set of determinants. Instead, uncertainty would have to be understood as being related to a broader institutional nexus that in concert may generate uncertainty for investors. The paper highlights the significance of getting institutions right to ensure that uncertainty is kept to a minimum by providing a predictable long-term environment. Stability at a systemic level appears crucial if investment rates are to rise in South Africa and this paper demonstrates that stability in turn is driven by a sound institutional environment that has multiple dimensions.     

Mutation rates at 14 STR loci in the population from Pernambuco, Northeast Brazil

Definition about mutation rates of short tandem repeats (STRs) loci used in forensic analysis are useful for the correct interpretation of resulting genetic profiles and the definition of criterions for exclusion in paternity testing. Germline mutation of 14 STR loci was studied for 54,105 parent–child allelic transfers from 2575 paternity testing cases carried out during 2000–2007 from the Pernambuco State, Northeast Brazil. The parenthood in each of these cases was highly validated (probability > 99.99%). We identified 43 mutations at 12 loci. Locus-specific mutation rate estimates varied between 2 × 10⁻⁴ and 2 × 10⁻³, and the overall mutation rate estimate was 8 × 10⁻⁴. Mutation events in the male germline were more frequent than in the female germline. The majority of the mutations could be explained by losses or gains of one repeat unit and there was no evidence for selection between insertion or deletion changes. Our data were compared with those of Portuguese and North-American populations for CSF1PO, D18S51, D21S11, D7S820, TH01, TPOX and demonstrated, despite the great difference in the size of the sample, that mutation rates of STR loci in a mixed population do not differ from that encountered in different populations.