Abstract: A method and apparatus for monitoring brain activity of a user is disclosed. The apparatus includes a plurality of spatially separated emitters operable to generate infrared radiation. The apparatus also includes a plurality of spatially separated infrared radiation detectors, and a plurality of light pipes urged into contact with the user's scalp, each one of the plurality of emitters and detectors having an associated light pipe operable to couple infrared radiation from the emitter into the scalp or to couple infrared radiation from the scalp to the detector.

Abstract: A magnetic tracking tag for animals may detect the occurrence of a predation event. The tag may include a pH sensitive material that degrades in the environment of a predator's gut. The degradation of the pH sensitive material causes a change in a detectable magnetic field of the tag, which allows the tag to detect the predation event and adjust its operation accordingly.

Abstract: A magnetic tracking tag for animals may detect the occurrence of a predation event. The tag may include a pH sensitive material that degrades in the environment of a predator's gut. The degradation of the pH sensitive material causes a change in a detectable magnetic field of the tag, which allows the tag to detect the predation event and adjust its operation accordingly.

Abstract: A tracking tag for aquatic animals may detect the occurrence of a predation event. The tag may include a pH sensitive material that degrades in the environment of an animal's gut. The degradation of the pH sensitive material causes a change in a detectable characteristic of the tag, which allows the tag to detect the predation event and adjust its operation accordingly.

Abstract: A tracking tag for aquatic animals may detect the occurrence of a predation event. The tag may include a pH sensitive material that degrades in the environment of an animal's gut. The degradation of the pH sensitive material causes a change in a detectable characteristic of the tag, which allows the tag to detect the predation event and adjust its operation accordingly.

Abstract: A tracking tag for aquatic animals may detect the occurrence of a predation event. The tag may include a pH sensitive material that degrades in the environment of an animal's gut. The degradation of the pH sensitive material causes a change in a detectable characteristic of the tag, which allows the tag to detect the predation event and adjust its operation accordingly.

Abstract: In one aspect, a mobile browser may be used to facilitate tethering of a client computing device to a mobile device. A first data connection may be opened between a client computing device seeking internet access and a browser application executing in the mobile browser. A second data connection may be opened between the browser application executing in the browser and an internet server. The browser application may automatically relay internet-destined data received from the client device to the internet server and may further automatically relay internet-originated data received from the internet server to the client device. In another aspect, a gateway identifier identifying a gateway for accessing the internet via a wireless LAN data connection may be modified or deleted to cause the mobile device to use a cellular data network data connection, rather than the wireless LAN data connection, for relaying internet-destined data from the client computing device.