Abstract: Methods, devices and systems are disclosed for inter-app communications between software applications on a mobile communications device. In one aspect, a computer-readable medium on a mobile computing device comprising an inter-application communication data structure to facilitate transitioning and distributing data between software applications in a shared app group for an operating system of the mobile computing device includes a scheme field of the data structure providing a scheme id associated with a target software app to transition to from a source software app, wherein the scheme id is listed on a scheme list stored with the source software app; and a payload field of the data structure providing data and/or an identification where to access data in a shared file system accessible to the software applications in the shared app group, wherein the payload field is encrypted.

Abstract: Hydroponics plant collars including a body defining a thickness, a center, and a periphery, a slot extending from the periphery and generally toward the center, a terminus of the slot and a surface thereof, and two opposing slot surfaces which define smooth plant contact portions thereof and which are spaced apart from one another whereby the body distributes forces acting on the hydroponics plant collar and on a plant to be in the slot, and metallic nanospheres dispersed throughout the body.

Abstract: Hydroponics plant collars including a body defining a thickness, a center, and a periphery,a slot extending from the periphery and generally toward the center, a terminus of the slot and a surface thereof, and two opposing slot surfaces which define smooth plant contact portions thereof and which are spaced apart from one another whereby the body distributes forces acting on the hydroponics plant collar and on a plant to be in the slot, and metallic nanospheres dispersed throughout the body.

Abstract: Plant collars which define slots extending from their peripheries toward the centers are provided. Their bodies define (smooth) surfaces which are substantially free of stress risers. Moreover, the opposing slot surfaces are spaced apart from one another and/or the slot termini are semi-circular.