Abstract: A method of collecting a urine sample including appropriately locating hydrophobic sand with respect to the urine sample. Use of the hydrophobic sand including providing a barrier in the form of at least one layer of the sand; and collecting a urine sample by appropriately locating the sand with respect to the urine.

Abstract: A floating device is disclosed. The device comprises a first cup member and a second cup member, each having a base and an open end, the first cup member being formed with an opening at a center of a respective base. In some embodiments of the present invention the device comprises a connector member having a peripheral wall fittingly connected to the open ends and enclosing a barrier. The peripheral wall is preferably formed with openings arranged between the barrier and the first cup member such that, when the floating device contacts a liquid, the liquid enters through the openings into the first cup member to submerge the first cup member and to impart a restorable upright orientation to the device.

Abstract: A floating device for use on a water surface is disclosed. The floating device comprises: a generally spherical hollow body defined by an equator line, a top pole and a bottom pole. The floating device further comprises a non-flat floating member, being inside the hollow body and having an apex constituted to support the top pole when the floating device is placed on the water surface. The body of the floating device is formed with at least one opening at each of the top and the bottom poles, and with an arrangement of openings circumferentially distributed above and below the equator line.

Abstract: A method of collecting a urine sample including appropriately locating hydrophobic sand with respect to the urine sample. Use of the hydrophobic sand including providing a barrier in the form of at least one layer of the sand; and collecting a urine sample by appropriately locating the sand with respect to the urine.

Abstract: A floating device is disclosed. The device comprises a first cup member and a second cup member, each having a base and an open end, the first cup member being formed with an opening at a center of a respective base. In some embodiments of the present invention the device comprises a connector member having a peripheral wall fittingly connected to the open ends and enclosing a barrier. The peripheral wall is preferably formed with openings arranged between the barrier and the first cup member such that, when the floating device contacts a liquid, the liquid enters through the openings into the first cup member to submerge the first cup member and to impart a restorable upright orientation to the device.

Abstract: Novel hydrophobic composites, particularly hydrophobic particulates and free-flowing hydrophobic aggregates and methods utilizing same are disclosed.

Abstract: A method of mitigating the growth of roots comprising positioning at least one layer of hydrophobic sand adjacent said roots. In some embodiments the sand is positioned beneath the roots to preserve water and/or the sand includes a coating containing a compound containing aluminum.

Abstract: Novel hydrophobic composites, particularly hydrophobic particulates and free-flowing hydrophobic aggregates and methods utilizing same are disclosed.