Multivariate Classification of Original and Fake Perfumes by Ion Analysis and Ethanol Content

The increased marketing of fake perfumes has encouraged us to investigate how to identify such products by their chemical characteristics and multivariate analysis. The aim of this study was to present an alternative approach to distinguish original from fake perfumes by means of the investigation of sodium, potassium, chloride ions, and ethanol contents by chemometric tools. For this, 50 perfumes were used (25 original and 25 counterfeit) for the analysis of ions (ion chromatography) and ethanol (gas chromatography). The results demonstrated that the fake perfume had low levels of ethanol and high levels of chloride compared to the original product. The data were treated by chemometric tools such as principal component analysis and linear discriminant analysis. This study proved that the analysis of ethanol is an effective method of distinguishing original from the fake products, and it may potentially be used to assist legal authorities in such cases.     

Analysing interventionism beyond conventional foreign policy rationales: the engagement of Brazil in the United Nations Stabilization Mission in Haiti (MINUSTAH)

Most of the analysis dealing with so-called “emerging powers” in the field of peace and security seek to explain the intentions and motivations (supposedly) behind these states’ foreign policy and changing normative positions. Several of those studies see foreign policy decisions as the result of rational processes, defined by a “means-and-ends” logic, essentially oriented by preconceived national interests, clear ideational precepts and fixed identities. Through a non-conventional analysis of the participation of Brazil in the United Nations Stabilization Mission in Haiti (MINUSTAH), the paper aims to advance an understanding of foreign policy as an identity practice that, especially in moments of domestic identity crisis, helps reinforce and stabilize specific representations of the state self and of those acting in its name. Informed by a post-positivist approach, the case discussed in the paper opens some avenues to explore how interventionism can be analysed beyond traditional foreign policy rationales and mainstream international relations theories.     

Global perspectives on scientists’ roles in legislative policymaking

Policy Sciences - The question of how scientists should engage in policymaking has spurred both pragmatic and philosophical debates for decades. Scant empirical research addressing how experts...     

A X-chromosome STR hexaplex as a powerful tool in deficiency paternity cases

The X-chromosome short tandem repeat (STR) markers have been described as very adequate tools for solving deficiency paternity cases and kinship tests when women are involved. In the absence of the alleged father, presumed paternal relationship can be more efficiently investigated by using a set of six to ten X-STR markers compared to fifteen autosomal STR. For this study, we compared the usefulness of a X-STR hexaplex developed in our laboratory (DXS7133, DXS7424, DXS8378, DXS6807, DXS7423 and DXS8377) and the commercial kit Identifiler in solving deficiency paternities. We have worked on distinct groups of caseworks involving daughters, their mothers and presumed paternal grandmothers or putative half sisters and their respective mothers. The PCR products were separated by capillary electrophoresis and detected in an ABI Prism 3100. In the majority of the caseworks (>90%), the likelihood ratio (LR) obtained by using the X-STR hexaplex was higher than the LR value observed when the Identifiler kit was used for genotyping. The combination of the two STR typing systems was able to solve all the cases.     

Measurement bias in self-reports of offending: a systematic review of experiments

Journal of Experimental Criminology - Self-reported offending is one of the primary measurement methods in criminology. In this article, we aimed to systematically review the experimental evidence...     

Addressing the mental healthcare needs of foster children: perspectives of stakeholders from the child welfare system

A qualitative study was conducted to better understand the factors that contribute to psychotropic medication (PM) overuse among children in the child welfare system in Kentucky, including barriers to providing psychosocial interventions that potentially minimize the need for PM. Semi-structured interviews were conducted with personnel in the Department of Community-Based Services (DCBS). Participants identified important areas to target for system-wide quality improvement efforts, which included improved exchange of health information, training, and communications on the use of PM, and measures to improve access to non-pharmacological psychosocial interventions to address the mental healthcare needs of children in the child welfare system.     

Cyberbullying in Portuguese Schools: Prevalence and Characteristics

This study examined the extent and nature of cyberbullying in 23 Portuguese schools. A sample of 3,525 sixth-, eighth-, and eleventh-grade students completed a self-response questionnaire assessing their perceptions and experiences of cyberbullying. The findings showed that 7.6% of students have been victimized, and 3.9% have bullied others at least once over the last year. The incidences of victimization were higher for females and for the older students. In contrast, more boys reported having bullied others in the eleventh grade. The most frequent medium of cyberbullying was via websites, whilst sending offensive messages was the most widely reported type of behavior. Telling someone about cyberbullying is among the most frequent coping strategies used by cybervictims, who usually chose to tell their friends rather than adults. Implications of these findings for students, schools, and parents are discussed.     

Childhood Physical and Verbal Mistreatment,Psychological Symptoms,and Substance Use: Sex Differences and the Moderating Role of Attachment

Sex differences in sequelae associated with levels of childhood physical mistreatment and verbal mistreatment were examined in a non-clinical sample of 272 university students. We predicted and found that both forms of mistreatment are related to attachment difficulties as well as various adverse psychological symptoms. We hypothesized, based on attachment theory, that the strength of a child’s attachment to one parent would moderate adverse emotional sequelae of mistreatment by the other parent. This prediction was only partially supported. Strength of the mother-daughter attachment moderated several of the adverse psychological symptoms in response to mistreatment by fathers, but mother-son attachment did not so moderate. Strength of the father-son attachment also did not moderate the symptoms associated with mistreatment perpetrated by mothers, nor did the father-daughter attachment. These results suggest that, among other relevant factors, sex differences should also be taken into account in treatment and prevention efforts.