To obtain such positron microbeam, it is necessary to use objective lenses, which are commonly used in the electron microscopy. We also attempted to form the positron microbeam using a positron beam for the positron diffraction experiment and a SEM optics [6]; [7] ; [8].
1 BERLIN â Ikea has long been famous for its inexpensive, some-assembly-required furniture. 2  A report by auditors at Ernst & Young concluded that Ikea, a Swedish company, knowingly benefited from forced labor in the former East Germany to manufacture some of its products in the 1980s. Ikea had commissioned the report in May as a result of accusations that both political and criminal prisoners were involved in making components of Ikea furniture and that some Ikea employees knew about it.
Even in regions where African slavery predominated, such as the sugar plantations in Portuguese Brazil and in the West Indies, Indian labor continued to be used. And in many Spanish colonies, where the plantations did not flourish, Indians provided the bulk of unfree labor through the colonial era. In other words, the growth of African slavery in the New World did not diminish the use of unfree Indian labor, particularly outside of the plantation system.