Abstract: A cell cryopreservation method including adding a 1 volume % of a composition comprising 0.01 wt % to 20 wt % of a sophorose lipid to cells in a cell culture medium just before or up to 6 hours before cryopreserving the cells; and cryopreserving the cell culture medium, wherein the composition improves cell viability after cryopreservation compared to cells that are cryopreserved with a similar composition that does not contain the sophorose lipid.

Abstract: This composition can be easily added when cryopreserving cells and improves cell viability. 1 volume % of the composition containing 0.01 wt % to 20 wt % of a sophorose lipid is added just before or up to 6 hours before cryopreservation and cells are stored. This composition can improve cryopreservation cell viability as it reduces freezing damage to cells. With this composition, cells can be stored without using DMSO and blood serum. This is a simple and inexpensive storage method as it does not require fine control of the freezing rate during cell cryopreservation.

Abstract: A control apparatus for a man-machine interaction according to the present application includes a first processing unit and a second processing unit. The first processing unit acquires detection information detected using a sensor as a receptor by an artifact including an interface configured to perform a man-machine conversational interaction with a user, using the sensor and an effector as an output apparatus, the detection information indicating a status of the interaction. The second processing unit, based on the detection information acquired by the first processing unit, controls the interaction by an electronic information processing apparatus including a storage apparatus by controlling at least one of reading and writing from and to data stored in the storage apparatus and processing on the data and the output apparatus.