Abstract: A configuration for a breathing sequence may be defined using a user interface of a user device. The user interface may also be used to begin the breathing sequence. Prior to beginning the breathing sequence, the user device can determine a breath ratio for the breathing sequence based on a breathing profile. The breath ratio is based at least in part on inhale time and exhale time of a breath of the breathing sequence. During the breathing sequence, a fluctuating user interface element may fluctuate at a cyclic rate corresponding to the breath ratio. Such fluctuation may include repeated growing and repeated shrinking of the fluctuating user interface element.

Abstract: A vent assembly for a igloo-type building of the type having a number of arcuate roof frame members extending between side gutters, the vent assembly including a Z-sectioned member secured to the roof frame members and extending parallel to the side gutters, the region between the Z-sectioned member and adjacent gutter defining a vent opening into the building. A roller blind has its fabric secured to the Z-sectioned member and may be unrolled to close the vent opening or rolled up to open the vent opening.

Abstract: A building structure for plant nursery or like buildings including a pair of side frame assemblies, each defined by an elongated gutter member supported at an elevated attitude by a plurality of upstanding supports. Brackets are disposed between the supports and the gutter member, the brackets including opposite side flanges disposed adjacent opposite sides of the gutter member to stiffen same. Straps span the gutter and connect the sides thereof together to resist splaying and thus deflection of the gutter under wind loading. The building structure includes a roof frame formed of a plurality of arcuate roof frame members which are supported in opposite sockets secured to the side flanges of the brackets.

Abstract: A vent assembly which can be mounted to plant nursery buildings of the type which include a plurality of arcuate roof frame members covered by a fabric material, such as a plastic film, the vent assembly having at least one pair of sawtooth profiled frames which may be bolted or otherwise connected to the building roof frame members to be upstanding therefrom. A pair of members extending longitudinally of the building are connected to upper and lower parts of the vertical portions of the sawtooth frames to define a vent opening which may be opened and closed by means of a rollerblind.

Abstract: A ventilation assembly for buildings of the type having a roof frame comprising a plurality of arcuate roof members extending outwardly from a central gutter section and supporting a flexible roof covering, the ventilation assembly including a pair of vent arms which normally rest upon the gutter section and to which the roof covering is secured on either side of the gutter section but which may be raised above the gutter section to lift the roof covering and form a ventilation opening for hot air from the building.

Abstract: Apparatus (10) for applying mist or spray to an environment such as one in which plants (11) are growing including a monitoring head (12) arranged in the environment to sense the humidity therein by measurements of temperature and a control device (13) for actuating mist or spray heads (15) to apply mist or spray to the plants (11) in accordance with the humidity sensed by the monitoring head (12).