Abstract: The system is for use with an occupiable space and comprises (i) a heat pumping arrangement including a refrigerant-containing circuit including an interior portion within the space and an exterior portion exterior to the space; (ii) a compression-expansion mechanism including a compressor and one or more expansion valves and operable in a heating mode to provide for compression of the refrigerant upstream of the exterior portion and downstream of the interior portion; and expansion of the refrigerant downstream of the exterior portion and upstream of the interior portion; (iii) a heater for producing a flow of heat; and (iv) distribution apparatus for, simultaneously: when the heater is producing, receiving its flow and transferring the received heat to air within the space; and when the compression-expansion mechanism is operating in the heating mode, absorbing heat from the interior portion of the circuit and transferring such heat to air within the space.

Abstract: Markers for detecting and staging chondrogenesis in cells are provided. In one aspect the markers are isolated polynucleotides, referred to hereinafter as CZF-1 and CZF-2, and fragments thereof. In one embodiment, the CZF-1 polynucleotide comprises the open reading frame sequence set forth in SEQ ID NO.1. In one embodiment, the CZF-2 polynucleotide comprises the open reading frame sequence set forth in SEQ ID NO. 3. In another aspect the markers are antibodies, which are immunospecific for proteins encoded by CZF-1 or CZF-2. Methods which employ the present markers to identify cells that have begun to differentiate into chondrocytes are provided. The present invention also relates to the CZ-1 protein and the CZ-2 protein and to polynucleotides or oligonucleotides whose sequences are complementary to the coding sequences of CZF-1 or CZF-2, or regions thereof.

Abstract: The invention concerns a lock cylinder with a cylinder core arranged rotatable in a housing and an overload coupling device, which consists of at least one radially slidable tang which is connected non-rotatable to the cylinder core, as well as of a control element cooperating with the tang in case of overload.

Abstract: A door closer being affixable to a door for closing the door. A channel having a slide therein for engaging with a detent also in the channel for holding the door open. The slide is connected to an arm of the door closer which arm moves the slide along the channel into contact with the detent which holds the door open once the detent and the slide have engaged with one another.

Abstract: A door closer being affixable to a door for closing the door. A channel having a slide therein for engaging with a detent also in the channel for holding the door open. The slide is connected to an arm of the door closer which arm moves the slide along the channel into contact with the detent which holds the door open once the detent and the slide have engaged with one another.