Nitrous Oxide Determination in Postmortem Biological Samples: A Case of Serial Fatal Poisoning in a Public Hospital*

Abstract: In a public hospital, eight cases of fatal poisoning by nitrous oxide (N₂O) occurred under oxygen administration, due to an erroneous swapping of the lines in the gas system. The aim of the study was to clarify the factors involved in asphyxia by characterizing gases from different lines and measuring N₂O concentrations in postmortem biological samples from bodies exhumed. Analyses carried out on the gas system confirmed the erroneous substitution of O₂ line with N₂O and air line with O₂. Consequently, high N₂O amounts were revealed in several tissues and gaseous biological samples. All specimens were analyzed by headspace gas chromatography technique. A rigorous quantitative analysis was possible only in blood (11.29–2152.04 mg/L) and urine (95.11 mg/L) and in air samples from stomach and trachea (from 5.28 to 83.63 g/m³). This study demonstrates that N₂O can be detected in biological samples even 1 month after death.     

Financing knowledge-intensive enterprises: evidence from CVCs in the US

Since the 1990s, the importance of corporate venture capital (CVC) programs has grown around the world. CVCs are investments that established firms make in entrepreneurial companies. At the most basic level, CVC describes an equity investment made by a corporation or its investment entity in a high growth, high potential, privately held business. There is no systematic evidence that corporate venture capital investments create value for the investing firms. Firm value, however, can be created as a result of other benefits from investing (e.g., accessing a new technology). These considerations can explain why many firms currently choose to operate venture units: They have recognized the importance of CVC for strategic innovation in addition to its potential to generate financial returns. Some evidence from the US context described in this paper supports this intuition.     

From Natural Mediator to Junior Partner: Perceptions and Self-Perception in West Germany’s Diplomatic Conferences on Africa, 1959–1968

This analysis finds basis largely on the protocols of the three West German diplomatic conferences held in Africa in 1959, 1962, and 1968. It scrutinises the idea, advanced by part of Bonn’s foreign policy élite at the end of the 1950s, that the Federal Republic of Germany had a “special mediatory role” to play between the West and Africa in the age of decolonisation. The Federal Republic played a significant indirect role, especially on the economic side, in keeping Africa tied to the West after the end of colonialism. However, because of its exposed political situation in Europe, it was never in a position to pursue a real mediating effort in Africa’s decolonisation conflicts, therefore limiting its ambitions to that of “junior partner” of the former colonial Powers in the second half of the 1960s.     

Analysis of YouTube Videos Used by Activists in the Uyghur Nationalist Movement: combining quantitative and qualitative methods

This paper explores the uses of YouTube by Uyghur nationalist movement activists and studies various ideological codes used by different communities to promote their messages. It argues that several ideological codes are produced in order to challenge the dominant ideologies promoted by the Chinese government, which create a ground for Uyghur ‘imagined solidarity’ across physical borders. Analysis of the production of audio-visual messages by the dispersed ethnic group provides an important window into how ethnic identity is forged by means of Web 2.0.