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].
Publicly Traded Companies that Benefited from Forced or Slave Labor, 1929-1945 CalPERS
The researchers documented 3,215 cases of forced labor under Indian law, 1,406 cases of child labor and 286 cases of human trafficking during the investigation. But they also noted that these figures are likely much higher. Factory owners and guards often denied the researchers access to many work sites, keeping them from documenting more cases.