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Knowing the characteristics of raw materials in pharmaceutical practice is both important and useful. Firstly, evaluating the physical-chemical properties of the substances that will be used must be the primary step for quality control in the pharmacy industry. This work aims at analyzing the physical-chemical characteristics of two nimodipine samples I and II derived from distinct laboratories through thermal analysis (DSC and TG/DTG), HPLC, crystallography, and microscopy. Thermal analysis showed that sample II was more unstable than I. Morphological differences concerning shape, size, and crystallinity of particles were visualized by scanning electron microscopy (SEM) and X-ray powder diffraction. To sum up, the techniques used in this study can be said to have been efficient in the characterization and evaluation of quality control of the raw material.

Antropólog(a)s têm se dedicado, ao menos desde Franz Boas, a investigar as relações entre natureza e cultura. No alvorecer do século XXI, este interesse recorrente vem sendo alterado diante de novas torções. Um conjunto de “etnógrafo(a)s multiespécies” começaram a depositar ênfase inédita na subjetividade e na agência de organismos cujas vidas estão emaranhadas às vidas humanas. A etnografia multiespécies emergiu na interseção de três linhas de investigação interdisciplinares: os estudos ambientais, os estudos sociais da ciência e da tecnologia (STS) e os estudos animais. Começando pelos clássicos assuntos etnobiológicos, plantas úteis e animais carismáticos, etnógrafo(a)s multiespécies igualmente convidaram organismos pouco estudados – tais como insetos, fungos e micróbios – para a conversação antropológica. Este(a)s antropólog(a)s reuniramse no Salão Multiespécies (Multispecies Salon), uma mostra de arte, onde as fronteiras de uma interdisciplina emergente foram exploradas em meio a uma coleção de organismos vivos, artefatos das ciências biológicas e surpreendentes intervenções biopolíticas.

Economistic approaches to the study of peasant livelihoods have considerable academic and policy influence, yet, we argue, perpetuate a partial misunderstanding -often reducing peasant livelihood to the management of capital assets by rational actors. In this paper, we propose to revitalize the original heterodox spirit of the sustainable livelihoods framework by drawing on Stephen Gudeman's work on the dialectic between use values and mutuality on the one hand, and exchange values and the market on the other. We use this approach to examine how historically divergent mutuality-market dialectics in different Amazonian regions have shaped greater prominence of either extractivism or agriculture in current livelihoods. We conclude that an approach centered on the mutuality-market dialectic is of considerable utility in revealing the role of economic histories in shaping differential peasant livelihoods in tropical forests. More generally, it has considerable potential to contribute to a much-needed re-pluralization of approaches to livelihood in academia and policy.