Abstract: Methods, systems and techniques for the accurate measurement breath-borne biomarkers are disclosed. Such methods, systems and techniques may be used for the purposes of detection and/or measurement in breath samples of biomarkers.

Abstract: A system for tracking entities at a site comprises a mesh of radio frequency identification (RFID) tags. Each of the tracked entities, which may move about the site, is associated with and attached to a portable RFID tag. Each RFID tag is at least periodically caused to transmit a signal that includes an identification of the RFID tag. The signal is received by other RFID tags that are within range, which determine a location indicative parameter. Some of the RFID tags receiving the signal are fixed at predefined locations. Specific fixed RFID tags are designated as controller nodes. Data comprising an identification of the RFID tag receiving a signal, the location indicative parameter, and the identification of the portable RFID tag transmitting the signal are communicated to a location engine server, which processes the data to determine at least a relative position of the portable RFID tags on the site.

Abstract: A system for tracking entities at a site comprises a mesh of radio frequency identification (RFID) tags. Each of the tracked entities, which may move about the site, is associated with and attached to a portable RFID tag. Each RFID tag is at least periodically caused to transmit a signal that includes an identification of the RFID tag. The signal is received by other RFID tags that are within range, which determine a location indicative parameter. Some of the RFID tags receiving the signal are fixed at predefined locations. Specific fixed RFID tags are designated as controller nodes. Data comprising an identification of the RFID tag receiving a signal, the location indicative parameter, and the identification of the portable RFID tag transmitting the signal are communicated to a location engine server, which processes the data to determine at least a relative position of the portable RFID tags on the site.

Abstract: A multipurpose device for planting, transplanting and harvest garlic and similar crops in raised beds includes a base structure having a frame, gauge wheels attached to the frame to support it at a desired height from the raised bed, and left and right raised bed followers to engage the sides of a raised bed as the device is drawn along by a conventional agricultural tractor. Two chairs can be detachably mounted on the base structure, they are abreast of each other when planting or harvesting, or one behind the other when transplanting seedlings. The toolbar is mounted on the base structure in front of the chairs to provide room for attaching one or two furrow openers and a furrow closing plate can be detachably attached to the base structure behind the chairs when planting cloves or bulbs.

Abstract: A multipurpose device for planting, transplanting and harvest garlic and similar crops in raised beds includes a base structure having a frame, gauge wheels attached to the frame to support it at a desired height from the raised bed, and left and right raised bed followers to engage the sides of a raised bed as the device is drawn along by a conventional agricultural tractor. Two chairs can be detachably mounted on the base structure, they are abreast of each other when planting or harvesting, or one behind the other when transplanting seedlings. The toolbar is mounted on the base structure in front of the chairs to provide room for attaching one or two furrow openers and a furrow closing plate can be detachably attached to the base structure behind the chairs when planting cloves or bulbs.