Abstract This paper discusses the dynamics and effects of the historical process concerning the end of the slave trade and abolition in Angola, as reflected in 19th-century printed materials (official) and emerging press (journals). With the advent of the free press, significant changes took place in Angolan public debate. The 20-year-long process of abolition aimed to protect agricultural enterprises and avoid compensation to slaveholders. The permanence of slave labor provoked vigorous debates in the press. This study analyzes primary printed sources: reports from the general governors of the province, Boletim do Governo Geral da Província de Angola, A Civilisação da África Portuguesa, O Mercantil, O Cruzeiro do Sul, Jornal de Loanda, A União da África-Portuguesa, O Pharol do Povo and O Desastre.

Resumo Esta pesquisa apresenta as dinâmicas e os efeitos do processo histórico do fim do tráfico de escravos e da abolição da escravatura, em Angola, repercutidos em materiais impressos (oficiais) e periódicos, na segunda metade do século XIX. Com o advento da imprensa livre, aconteceram mudanças significativas no debate público angolano. O prolongamento da abolição da escravatura ao longo de 20 anos visou proteger as empresas agrícolas e evitar indenizações aos escravagistas. A permanência do trabalho escravo provocou debates vigorosos na imprensa. Este trabalho baseia-se na análise de fontes primárias impressas: relatórios dos governadores gerais da província, Boletim do Governo Geral da Província de Angola, A Civilisação da África Portuguesa, O Mercantil, O Cruzeiro do Sul, Jornal de Loanda, A União da África-Portuguesa, O Pharol do Povo e O Desastre.

ABSTRACT Harvesting fruits and vegetables has been a challenge. Mobile platforms for harvesting vegetables and fruits have been used, but with some limitations, such as their applicability for a certain time of the year and for a specific crop. A mobile platform was initially developed for harvesting fresh market tomatoes, mainly staked in Brazil. However, after field trials, many problems were identified, such as crop use limitation and machine structure problems. Therefore, the initial project was reformulated to assume different functions, with a retractable and smaller frame and the possibility of adding on other devices, expanding crop harvest and farm use. The concept of a hybrid vehicle with one electric power generator to drive all four wheels with electric motors was kept. The main goal of this article is to describe the development of the mobile platform machine structural details and integration of electrical, hydraulic, and mechanical project and field tests performed in a commercial orange orchard, comparing harvest types, evaluating yield and machine performance. Tests with the mobile laboratory prototype show its potential application to assist harvest and to other farm operations, especially due to its mobility. Harvest productivity through machine was higher, though not significantly different from manual harvest.

Complicações relacionadas com a anastomose são descritas com freqüência nas cirurgias para o tratamento da doença inflamatória do cólon. Para conhecer a interferência da inflamação na cicatrização de anastomoses 40 ratos Wistar são utilizados e divididos em 2 grupos. Um deles serviu de controle e no outro induziu-se doença inflamatória com ácido acético 10% por sondagem retal. No sétimo dia procedeu-se à laparotomia em ambos os grupos, colotomia e anastomose término-terminal com pontos separados em plano único. Avaliadas no terceiro e sétimo dias, pode-se verificar que o número de complicações no grupo de animais com doença inflamatória foi maior assim como a mortalidade. As deiscências com peritonite foi a situação mais comum (p=0,0222). A capacidade de suportar pressão, nas anastomoses que evoluíram sem complicações foi menor nestes cólons, porém a diferença quando comparada ao controle não foi significante (p=0,0836). Verificou-se que as anastomoses construídas em cólons com doença inflamatória apresentavam maior concentração de colágeno total, com predomínio de colágeno imaturo (tipo III) (p=0,0000) enquanto que nas feitas em cólons normais predominava colágeno maduro (tipo I) (p=0,0102). Observou-se ainda que a organização do colágeno era menor, no terceiro dia, nas anastomoses com doença inflamatória. Entretando a análise da reação inflamatória ao nível da anastomose foi semelhante nos dois grupos. Estes resultados permitem sugerir que a doença inflamatória leva a aumento do número de deiscências provavelmente pelo atraso da maturação e ordenação do colágeno.

Complications related to anastomosis failure are frequently described in the surgery of inflammatory bowel disease. The aim of the present study was to evaluated colonic wound healing in an inflamed bowel. Forty Wistar rats were divided in 2 groups: the control and experimental groups. In the experimental group, colitis was induced by the infusion of 10% acetic acid per rectum to understand how inflammation interferes with the healing process of intestinal. On the7th post-operative day an end to end colonic anastomosis was performed with interrupted suture. On the 3rd and 7th post-operative days, the anastomosis were evaluated. We observed that mortality and the number of complications were greater in the group of animals with inflammatory bowel disease. Dehiscence with peritonitis was the most common complication(p=0.0222). The bursting strength in the colons without leakage was lesser than those in the control group, however this difference was not statistically significant (p=0,0836). It was verified that the anastomosis performed in colons with inflammatory bowel disease showed greater total collagen concentration, with a predominance of immature collagen (type III) (p=0.0000). The mature collagen (type I) was the predominant collagen in the wounds of normal colon. (p=0.0102). On the 3th post-operative day It was also observed that the organization of collagen was poorer on the third day in the colonic wounds with inflammatory bowel disease. Nevertheless, the analysis of the inflammatory reaction at the level of the anastomosis was similar in both groups. These results suggest that inflammatory bowel disease increases the risks of anastomosis dehiscence, probably because of the delay in the maturation and the organisation of collagen.