Recent developments in cornea transplantation (1997-1999)

Between 1997 and 1999 a steady increase in cornea donations was achieved, but the number of transplantations remained stable because many grafts did not pass quality control. Intermediate organ culture of entire bulbi was examined as a possible solution to reduce post-mortem times and increase suitability for transplantation.     

Semi-automatic analysis of fire debris

Automated analysis of fire residues involves a strategy which deals with the wide variety of received criminalistic samples. Because of unknown concentration of accelerant in a sample and the wide range of flammable products, full attention from the analyst is required. Primary detection with a photoionisator resolves the first problem, determining the right method to use: the less responsive classical head-space determination or absorption on active charcoal tube, a better fitted method more adapted to low concentrations can thus be chosen. The latter method is suitable for automatic thermal desorption (ATD400), to avoid any risk of cross contamination. A PONA column (50 mx0.2 mm i.d.) allows the separation of volatile hydrocarbons from C(1) to C(15) and the update of a database. A specific second column is used for heavy hydrocarbons. Heavy products (C(13) to C(40)) were extracted from residues using a very small amount of pentane, concentrated to 1 ml at 50 degrees C and then placed on an automatic carousel. Comparison of flammables with referenced chromatograms provided expected identification, possibly using mass spectrometry. This analytical strategy belongs to the IRCGN quality program, resulting in analysis of 1500 samples per year by two technicians.     

南越土地改革的进展

自从1954年7月日内瓦协定订立之后,南越吴庭艶政府把土地改革存在关键性的问题,下了绝大的决心,付诸实施,特别是在土地转移和定居这两个方面。在实施土改计划上,美国的经济和技术援助起了重要的作用。土改计划的初步阶段,现在将近完成,減租和稳定佃期的计划,现在正在继续施行,并普及到全国佃农的3/4,而土地转移计划预     

泰国大米輸出之研究

英格兰姆在1951—52年,曾以“社会科学研究基金”名义,前往泰国进行調查工作。从泰国返美后,曾任美国北卡罗里那大学經济学教授。本文譯自著者:“1850年后泰国經济的变革”一書第三章,該章主要是分析1850至1950年以来泰国大米生产及輸出的情况。从文章內容可看出泰国經济,特別是农业生产的殖民地性和对外国資本的依賴性。