Abstract: Genetically modified microorganisms that have the ability to convert carbon substrates into chemical products such as 2,3-BDO are disclosed. For example, genetically modified methanotrophs that are capable of generating 2,3-BDO at high titers from a methane source are disclosed. Methods of making these genetically modified microorganisms and methods of using them are also disclosed.

Abstract: In some examples, an endovascular medical device includes an elongated body configured to be introduced in a cranial blood vessel of a patient and an expandable element on the elongated body. The expandable element includes a plurality of loops, wherein each loop includes one or more electrodes. The expandable element is configured to expand radially outwards from a relatively low-profile delivery configuration to a deployed configuration to position the one or more electrodes to deliver electrical stimulation to tissue of a brain of a patient or sense a patient parameter from a location within the cranial blood vessel.

Abstract: Described herein is a magnetic dendrometer having a frame, a spring-tension mechanism, and a magnet for moving together with the spring-tension mechanism. A magnetic sensor is attached to the frame. The magnetic sensor senses the linear motion of the magnet. This linear motion translates to trackable fluctuations in magnetic field. The magnetic fluctuations are converted to electrical signals by the magnetic sensor. A spring is attached to a free-floating wishbone-style component. The free-floating wishbone-style component is coupled to a slider which has an adjustable, single-contact point with a target (e.g., a vine, a branch, etc.). The frame is a stationary frame that carries the magnetic sensor. The frame connected via the spring to the wishbone/slider combination cooperates with each other for providing linear motion to extend or contract the spring in length directions. The length variations of the dendrometer spring are converted to linear motion of the magnet and then into electronic signals.