Abstract: The present invention relates to methods for modulating progestagen signaling for treating neurological disorders or neurodegenerative disease, or preventing or delaying its onset in individuals deemed by competent observation and testing to be susceptible thereto. Progestagens can be administered to elevate serum and brain levels of progestagens and induce neurogenesis. Progestagen therapy may prevent some of the neurodegenerative and cognitive changes associated with developmental and aging associated neurological disorders and neurodegenerative diseases. Progestagen therapy together with suppression of GnRH, kisspeptin, LH and/or FSH signaling also may be used for treating neurological disorders or neurodegenerative diseases. The invention also relates to methods for inhibiting or delaying blastulation during embryogenesis, and neurogenesis during embryogenesis, fetal, neonatal, childhood, puberty or adult life.

Abstract: An eraser for use on an electronic whiteboard with a protrusion area on the erasing surface forming a convex area on the erasing surface for establishing a positive point of contact with the whiteboard; an electronic whiteboard system including such an eraser, a controller for storing data relating to information written on and erased from the whiteboard data, and a filter for preventing the storage of digital data relating to contacts with the whiteboard not attributable to normal writing or erasing actions.

Abstract: An eraser for use on an electronic whiteboard with a protrusion area on the erasing surface forming a convex area on the erasing surface for establishing a positive point of contact with the whiteboard; an electronic whiteboard system including such an eraser, a controller for storing data relating to information written on and erased from the whiteboard data, and a filter for preventing the storage of digital data relating to contacts with the whiteboard not attributable to normal writing or erasing actions.

Abstract: An eraser for use on an electronic whiteboard with a protrusion area on the erasing surface forming a convex area on the erasing surface for establishing a positive point of contact with the whiteboard; an electronic whiteboard system including such an eraser, a controller for storing data relating to information written on and erased from the whiteboard data, and a filter for preventing the storage of digital data relating to contacts with the whiteboard not attributable to normal writing or erasing actions.

Abstract: An eraser for use on an electronic whiteboard with a protrusion area on the erasing surface forming a convex area on the erasing surface for establishing a positive point of contact with the whiteboard; an electronic whiteboard system including such an eraser, a controller for storing data relating to information written on and erased from the whiteboard data, and a filter for preventing the storage of digital data relating to contacts with the whiteboard not attributable to normal writing or erasing actions.

Abstract: A digitizer including a support structure defining a digitizer area and a spacer element; a tensioned membrane disposed in spaced relationship to the support structure on the spacer element; and a peripheral flexible member extending from the support structure and including at least two independently flexible sections attached to the membrane and pretensioned counter to the tension of the membrane for deflecting and maintaining tension on the membrane to sustain the spaced relationship with the membrane relative to the structure.