Abstract: In some embodiments, an apparatus includes a housing defining an interior space, a sensor, and a processor. The sensor is configured to sense an indication generated by a compute device. The indication can be at least one of a visual indication, an auditory indication, or a vibratory indication. The processor can be configured to determine whether to transition a lock status of the apparatus from locked to unlocked based on the indication sensed by the sensor. The processor can initiate a transition of the lock status from locked to unlocked upon determining to transition the lock status.

Abstract: Systems, methods and computer-readable storage media can be used to debug content items. One example method includes presenting, by a mobile application executing on a mobile device, a first application interface. The example method further includes detecting, by the mobile device, a predetermined user action. The example method further includes, in response to detecting the predetermined user action, generating debugging information from content event logs, wherein the content event logs are associated with content item slots in which content items are presented in the mobile application and presenting, by a debugging interface, the debugging information.

Abstract: The invention provides a device and the use thereof in a cell experiment in vitro. This device has a polydopamine layer-carboxymethyl chitosan layer-peptide layer structure, which is capable of regulating behaviors of human pluripotent stem cells and is useful in cell culture or a cell experiment in vitro.

Abstract: The invention provides a device and the use thereof in a cell experiment in vitro. This device has a polydopamine layer-carboxymethyl chitosan layer-peptide layer structure, which is capable of regulating behaviors of human pluripotent stem cells and is useful in cell culture or a cell experiment in vitro.