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Reciprocal migration—which we define as the mutual exchange of origin and destination by two different migrating groups—is hardly acknowledged in the migration literature. In terms of the temporalities of migration, which are usually seen as sequences or transitions, reciprocal migrations are simultaneous. We analyse the reciprocal migrations between Angola and Portugal over the time-frame of the past 10–15 years. In-depth interviews were carried out with Portuguese migrants in Angola, most of whom moved there in the wake of the post-2008 financial crisis, and with Angolan third-level students and recent graduates in Portugal. A key operational concept in our analysis is the plastic notion of skill and its differential racialisation. Portuguese migrants in Angola are automatically regarded as ‘skilled’ even when they are not, whereas Angolan students and graduates in Portugal, when they seek work, are often viewed as ‘unskilled African migrant workers’. We thus distinguish and deconstruct the geographical binary between transnational origin and destination spaces and the social binary between ‘skilled white bodies’ and ‘unskilled black bodies’. These racialised embodied tropes draw on histories of Portuguese colonisation and the contested notion of ‘Lusotropicalism’, as well as the so-called Lusophone migration system involving complex transnational relations and two-way migration flows. Theoretically we frame this asymmetrical system of reciprocal migration within a modified version of core–periphery relations, as well as the coloniality of power and its enduring influence over the racialisation of skill, education, culture and language across the Portuguese–Angolan transnational space.

BackgroundFermentation is a classic industrial process that can be applied as an efficient strategy to increase the release of bioactive compounds with antioxidant and antidiabetic activities.MethodsThis work reported the effects of solid-state fermentation (SSF) performed using strains of Aspergillus oryzae and Aspergillus niger on the antioxidant (DPPH, ABTS and FRAP) and in vitro antidiabetic (inhibition of α-amylase and α-glucosidase activities) potential of lentils.ResultsThe results showed that the profiles of the biological activities of the extracts obtained from the fermented samples varied greatly with respect to both the microorganism involved and the fermentation time. The extracts obtained from the fermented lentils by A. oryzae after 72 h and by A. niger after 48 h using the FRAP assay showed the most remarkable changes in the antioxidant activity, increasing by 107 and 81%, respectively, compared to the nonfermented lentils. The lentil extracts produced by fermentation with A. niger after 48 h were able to inhibit the α-glucosidase activity by up to 90%, while a maximal inhibition of amylase (~ 75%) was achieved by the lentil extract obtained after 24 h of fermentation with A. oryzae. The content of the total phenolic compounds (TPCs) and the identification of them in lentil extracts correlated well with the improvement of the biological activities.ConclusionThese results suggested that SSF was feasible to obtain extracts of fermented lentils with improved antioxidant and antidiabetic properties. Additionally, these results indicated that the proper choice of microorganism is crucial to direct the process for the production of compounds with specific biological activities.

What are the main impacts of globalization and new information and communication technologies (ICTs) on female empowerment? The first part of this paper surveys two main disputing arguments concerning this issue through a review of the literature investigating the causal mechanisms that links both dimensions. One stream of academia highlights the negative impacts of globalization. It argues how market liberalization resulted in the weakening of welfare policies and the flexibilization of labor rights. Another stream of literature emphasizes the role played by international organizations, like the World Bank, as well as civil society movements, and highlights how globalization made it possible for women conquer an important place in their societies. This paper attempts to add to these analyses the assumption that ICTs provided differential opportunities to women. The second part of the paper verifies which arguments are most consistent with empirical data. In a panel analysis from 2000 to 2014 we focus on how globalization may have affected female economic empowerment (measured as women’s participation in the work force) and political representation (measured as women participation on the labor force and participation in national parliaments). We find evidence that access to ICTs may represent a crucial variable to enhance women’s empowerment.

Professors may start teaching either out of love or out of convenience, with limited resources. This article provides a brief manual for planning, designing and implementing PS&IR courses. We discuss syllabi, from the basics to the inclusion of transversal topics, then present eight active learning strategies plus traditional lectures, and debate assessments. Although we consider the context of new teachers within Brazilian universities, we believe this is useful for professors from all countries and levels of experience. Thereby, we provide practical advice for teachers to live happily ever after in their pedagogical love story (even if it did not start that way).

Restrictions in movement and closure of borders imposed by the Sars-Cov- 2 worldwide pandemic have affected the global illicit drug market, including cocaine trafficking. In this scenario, comparing cutting agents added to the cocaine and the drug purity are valuable strategies to understand how the drug trade has been impacted by the pandemic. In this work, 204 cocaine salt materials seized in the Brazilian Federal District, before (2019) and during COVID-19 pandemics (2020) were analyzed by two analytical techniques: gas chromatography-mass spectrometry (GC–MS) and Fourier-transform infrared spectroscopy (FTIR). Statistical analyses, including Principal Component Analysis (PCA), were applied to evaluate the COVID-19 pandemic impact in the local market. Bibliometric analysis was performed as a forensic intelligence tool. Results: From 2019–2020, cocaine average purity decreased 26 % while the frequency of cutting agents, as caffeine and anesthetics (lidocaine, tetracaine) increased. The high percentage of unknown were increased. Different cocaine profiling seized in 2020 showed new cutting agents, such as Irganox 1076, and Irgafos 168, indicating a trend on new adulterants/diluents introduced in the local market to mitigate the local drug shortage. Also in 2020, there was an increase in the local cocaine seizures, despite of the cocaine drug purity decreased by 26 % compared to 2019. Conclusions: Taken together, these data showed that the covid-19 pandemics has impacted cocaine trafficking in the Brazilian Federal District, an increase in cocaine seizures, which may indicate greater demand for the drug and, specially, changes in the cocaine purity and cutting agents profiling showing how traffickers tried to minimize difficulties in crossing the Brazilian border during COVID-19 restrictions. The information is relevant since Brazil is one of the major departure points for traded cocaine to the world. Bibliometric analysis showed that Irgafos 168 and Irganox 1076 were consistently identified as cocaine cutting agents for the first time. •COVID-19 pandemic impact on Cocaine trafficking in Brasil.•Irgafos 168 and Irganox 1076 as new cocaine cutting agents in 2020.•Changes in the composition of the street cocaine 2019–2020 showed by 3D PCA Graphic.•Bibliometric analysis used as a forensic intelligence tool.•Decreased cocaine purity due to COVID-19 pandemic restrictions.

Participation in democratic regimes has been a central issue in foreign policy (FP) studies. This article seeks to contribute to the empirical discussion about FP participation through the analysis of the public consultation process conducted by the Brazilian Ministry of Foreign Affairs with non-state actors in the context of the preparations for the Paris Climate Agreement (2015). We employed automated text analysis using Python and R qualifying open responses submitted to the questionnaire launched at the first round of the consultations process and comparing them to the official document presented by Brazil establishing its own carbon emission targets. We found that the Brazilian academia members had a relevant influence on the content of the final document presented by Brazil, strengthening the literature on the importance of the epistemic community to environmental politics and raising new questions on the paths of foreign policy influence.

Why do countries engage in Regional Financial Cooperation (RFC) initiatives and why they may give up on them? Under which conditions are those mechanisms born and how may changes affect their performance? Although comparative studies have been a prolific strategy to investigate RFC the focus on the experiences of a specific region may reveal new insights. Therefore the aim of this paper is to map the existing RFC mechanisms in Latin America, seeking to identify the demand, supply and conjectural conditions behind the processes of their creation and evolution. The theoretical framework provides concepts from International Relations’ theories concerning regional institution building. Empirically fourteen Latin American RFC initiatives are surveyed. As a result important variables explaining RFC mechanisms in Latin America are presented in the paper: demand for greater participation (sense of belonging), material and political capacity from a paymaster and macroeconomic coordination.

The majority of HIV-infected patients develop Candida spp-associated clinical oral lesions. Studies have shown that asymptomatic oral colonization of Candida spp may lead to oral lesions or become a source of disseminated infections. The aim of this study was to verify the effects of periodontal conditions on Candida spp prevalence and Candida spp carriage in the oral cavity of HIV-infected patients compared to non-infected patients. Twenty-five patients not infected with HIV and 48 HIV-infected patients were classified according to periodontal conditions as being periodontal healthy or with periodontal disease. Candida spp carriage and classification were performed in oral rinse samples. Viral load and CD4+ T lymphocyte (CD4+L) counts were performed in blood samples from HIV-infected patients. No differences in Candida spp prevalence related to HIV status or periodontal condition were detected. However, Candida spp carriage was increased in periodontally affected HIV-infected patients when compared to periodontally healthy HIV-infected patients (p= 0.04). Periodontally healthy HIV-infected patients presented Candida spp carriage in similar levels as healthy or periodontally affected non-HIV-infected patients. Candida spp carriage was correlated with CD4+L counting in HIV-infected patients. We concluded that periodontal disease is associated with increased Candida spp carriage in HIV-infected patients and may be a predisposing factor to clinical manifestations of candidiasis.

Antimicrobial peptide LL37, present in the saliva, has an important role in oral health maintenance, and many studies have shown that this peptide can modulate pro-inflammatory cytokine expression. The study of salivary cytokine expression helps shed further light on the salivary immune system and can predict or monitor periodontal disease. The aim of this study was to determine LL37 levels, comparing them with the levels of salivary TNF-α, IL6, and IL-1β of patients with different treatment needs. A total of 120 patients, classified by periodontal treatment needs according to the PSR/CPITN index, participated in this study. Group 1 included periodontally healthy patients (index 0), whereas groups 2 and 3 consisted of patients with periodontal disease—group 2 with at least one sextant classified as index 1 or 2 and group 3 with at least one sextant presenting index 3 or 4. Salivary samples were collected from all patients and TNF-α, IL6, IL-1β, and LL37 antimicrobial peptide were determined by ELISA. Patients without periodontal treatment needs showed higher salivary levels of LL37 when compared to those with any periodontal involvement. Low salivary LL37 levels in patients with periodontal disease were associated with the increase of TNF-α and IL6 expressions. No relationship between salivary IL-1β levels and different PSR/CPTIN indices, nor any correlation of IL-1β with salivary LL37 concentration, was observed. Results of the present study support the hypothesis that low levels of LL37 can modulate the production of pro-inflammatory cytokines such as TNF-α and IL6.

Social businesses seek financial, social and even environmental results. Academic knowledge on how such organizations operate, however, has emerged more recently. This article sought to investigate qualitatively the main tensions and dilemmas occurring throughout the history of Rede Asta, a pioneer social business in direct catalog sales of artisanal products in Brazil. Results indicate the Rede Asta managers have experienced tensions and dilemmas in three of the four categories identified by Smith, Gonin, and Besharov (2013): social and financial performance, organizational aspects and learning. One of the dilemmas involves organizational aspects and learning, since Asta achieves feasibility with two organizations: a nonprofit association and a for-profit corporation. On perceptions of belonging, stakeholders declared they felt they were a part of the organization’s social and environmental goals; some even as activists.