Resumo O presente artigo apresenta uma ampla avaliação sobre o destacamento de pessoal chinês para operações de paz ao longo das últimas três décadas (1990-2019). Para tanto, um conjunto de dados original foi construído a partir de dados coletados do Departamento de Operações de Paz da ONU (DPO). Os seguintes quatro indicadores foram analisados: (i) contribuição total de pessoal por ano; (ii) contribuição de pessoal por missão; (iii) contribuição de pessoal em relação ao contingente total da missão; e (iv) contribuição de pessoal em uma determinada missão em relação ao total destacado pela China naquele ano. De modo geral, as missões da ONU na Libéria (UNMIL) e no Sudão do Sul (UNMISS) foram os principais destinos das forças chinesas de manutenção de paz no século XXI, enquanto o Camboja (UNTAC) foi, de longe, o único lugar onde a China se envolveu profundamente durante a década de 1990. Além de exibir dados descritivos, o artigo também analisa brevemente o envolvimento chinês nessas operações.

Abstract This article presents a broad assessment of Chinese personnel deployments to peacekeeping operations (PKOs) for the past three decades (1990-2019). To this end, an original dataset was built with data collected from the UN Department of Peace Operations. The following four indicators were considered in the analysis: (i) total personnel contribution per year; (ii) personnel contribution per mission; (iii) personnel contribution in relation to the mission’s total contingent; and (iv) personnel in a given mission in relation to the total personnel dispatched by China that year. Generally speaking, UN missions in Liberia (UNMIL) and South Sudan (UNMISS) have been the main destinations of Chinese peacekeepers in the 21st Century, while Cambodia (UNTAC) was by far the only place where China got deeply involved during the 1990s. In addition to displaying descriptive data, the paper also briefly analyses Chinese engagement in these operations.

The so-called emerging powers, including the BRICS nations (Brazil, Russia, India, China and South Africa), typically present themselves as natural leaders of their regions. Although physical size confers them the status of regional powers, their role as leaders depends on the consensual acceptance of their would-be followers. Can it be affirmed then that the countries under the influence of the BRICS show convergent positions? Can the five BRICS be considered de facto leaders of their regions? This article sets out to answer these questions by analysing the behaviour of the BRICS and their regional partners in the United Nations General Assembly (UNGA). The research design replicates the data from Voeten (2013) in order to compare the average affinity between each of the BRICS countries and their regions in the votes of the UNGA from 1992 to 2014. The data indicate a high level of regional cohesion for Brazil, China and South Africa when compared to Russia and India. The findings corroborate the literature in relation to Brazil and South Africa but conflict with what has been produced on the regional leadership of Russia, India and China.

Objetivo: Avaliar o efeito da sitagliptina nos potenciais evocados somatossensoriais (PESS) e controle metabólico de pacientes com diabetes melito tipo 2, sem neuropatia diabética. Materiais e métodos: Estudo de intervenção, prospectivo e aberto. Os pacientes com menos de seis meses de diagnóstico foram incluídos. Exames dos PESS e testes laboratoriais em jejum e após a estimulação com alimentos foram realizados antes e depois de três meses de tratamento com sitagliptina (100 mg/dia). Resultados: Houve redução nos níveis médios de HbA1c (P < 0,0001), glicemia de jejum (P = 0,001), colesterol total (P = 0,019) e ALT (P = 0,022). Verificou-se aumento de GLP-1 ativo (P = 0,0025). Vários PESS mostraram diferenças estatisticamente significativas quando os valores foram analisados antes e após o tratamento com sitagliptina. Conclusão: Os resultados vislumbram a possível utilização de sitagliptina no tratamento de algumas condições neurodegenerativas do sistema nervoso periférico, em adição ao seu papel no controle glicêmico.

Objective: To evaluate the effect of sitagliptin on somatosensory-evoked potentials (SEPs) and metabolic control in patients with type 2 diabetes mellitus without clinical diabetic neuropathy. Materials and methods: Interventional, prospective, and open study. Patients with less than six months from the diagnosis were included. Examinations of SEPs and laboratory tests at fasting and after food stimulation were performed before and after three months of treatment with sitagliptin (100 mg/day). Results: There was a reduction in the mean levels of HbA1c (P < 0.0001), fasting glucose (P = 0.001), total cholesterol (P = 0.019), and ALT (P = 0.022). An increase in active GLP-1 was found at the end of the study (P = 0.0025). Several SEPs showed statistically significant differences when analyzed before and after treatment with sitagliptin. Conclusion: The results give a glimpse of the possible use of sitagliptin in the treatment of some neurodegenerative conditions of the peripheral nervous system, in addition to its already established role in glycemic control.