Abstract: A haptic system can include a user device including one or more haptic actuators and one or more sensors. The haptic system can be configured to perform operations including controlling the haptic actuator(s) to produce a haptic output based on a haptic output profile associated with a desired action of a user of the haptic system; detecting, using the one or more sensors, one or more user response characteristics in response to the haptic output; determining, based at least in part on the one or more user response characteristics, data describing a user action of the user performed after the haptic actuator(s) produces the haptic output; comparing the data describing the user action with data indicative of the desired action to generate an effectiveness metric; and determining a subsequent haptic output profile for a subsequent haptic output based at least in part on the effectiveness metric.

Abstract: A wearable device can include a wearable band configured to contact a user of the wearable device, an actuator, a sensor, and one or more processors in communication with the actuator and the sensor. The processors can be configured to measure a back electromotive force (“EMF”) of the actuator; determine, based on the measured back EMF, data that describes a contact force between the wearable band and the user; and determine, based on the data that describes the contact force, a quality metric describing a data quality of sensor data collected by the sensor. In some embodiments, the processor(s) can determine, generate sensor output data based on the sensor data and based at least in part on the data describing the contact force between the wearable band and the user. For example, one or more machine-learned models maybe leveraged to generate sensor output data that is compensated for the wearable band being too tight or too loose.

Abstract: A wearable device can include a wearable band configured to contact a user of the wearable device, an actuator, a sensor, and one or more processors in communication with the actuator and the sensor. The processors can be configured to measure a back electromotive force (“EMF”) of the actuator; determine, based on the measured back EMF, data that describes a contact force between the wearable band and the user; and determine, based on the data that describes the contact force, a quality metric describing a data quality of sensor data collected by the sensor. In some embodiments, the processor(s) can determine, generate sensor output data based on the sensor data and based at least in part on the data describing the contact force between the wearable band and the user. For example, one or more machine-learned models maybe leveraged to generate sensor output data that is compensated for the wearable band being too tight or too loose.

Abstract: Microfluidic systems including a housing configured to receive a cartridge, the cartridge including a plurality of wells for receiving one or more biological cells are described herein. The microfluidic systems include a structure with channels for introducing a medium into the housing and through channels the cartridge. Microfluidic systems including a housing configured to receive a cartridge, the housing including channels for loading one or more biological cells within wells of the cartridge are described herein. Three-dimensional scaffolds, devices, and systems comprising such scaffolds that mimic the in vivo structure, physical properties, and protein composition of extracellular matrix surrounding pancreatic islet cells and adipocytes, and the use of such compositions, devices and systems for, e.g., in vitro drug screening and/or toxicity assays, disease modeling, and therapeutic applications are also described herein.

Abstract: Microfluidic systems including a housing configured to receive a cartridge, the cartridge including a plurality of wells for receiving one or more biological cells are described herein. The microfluidic systems include a structure with channels for introducing a medium into the housing and through channels the cartridge. Microfluidic systems including a housing configured to receive a cartridge, the housing including channels for loading one or more biological cells within wells of the cartridge are described herein. Three-dimensional scaffolds, devices, and systems comprising such scaffolds that mimic the in vivo structure, physical properties, and protein composition of extracellular matrix surrounding pancreatic islet cells and adipocytes, and the use of such compositions, devices and systems for, e.g., in vitro drug screening and/or toxicity assays, disease modeling, and therapeutic applications are also described herein.