Abstract: The present invention relates to methods of promoting or inhibiting angiogenesis in humans comprising administering to a human in need thereof an effective amount of Stem Cell Factor or a modulator of Stem Cell Factor or an agonist or antagonist of c-Kit and methods of inducing migration of a neural stem or progenitor cell to a site of neurological injury in the central nervous system of a subject.

Abstract: A detection method for measuring lift guide rail perpendicularity and an apparatus for practicing the method. The detection method includes the following steps: selecting several monitoring points on a working surface of the lift under testing, measuring seriatim the position coordinates of each monitoring point in the longitudinal direction of the guide rail and the distance between two adjacent monitoring points, measuring seriatim the included angle between the line connecting the two adjacent monitoring points and the plumb line (or the horizontal line), plotting a graphic chart of the perpendicularity error data to obtain the perpendicularity curve for the lift guide rail. The apparatus includes an instrument frame, several detector heads, a displacement sensor, an inclination sensor, a microprocessor and a power supply unit installed on the instrument frame.

Abstract: The present invention relates to a routing information optimization and control technology in mobile communication. A Gateway Home Location Register (GHLR), comprising a signaling transceiving module, a security rule configuration module, and a routing information security analysis module. A method of exchanging roaming subscriber routing information, comprising: the GHLR in the home network receiving a information request and determining the request according to the security rules in GHLR; if the request is accordant to the security rules in GHLR, GHLR sending called information to the network element capable of fetching subscriber routing information in the visited network.

Abstract: A CRP and a CRP method related to the mobile communication field. Said CRP comprises: a voice bear and signaling management module, a call access control module, a message processing module, and a waiting call data storage module. Said CRP method initiates the request to the CRP, which informs the roaming subscriber to call back and then performs switching for the calling subscriber and the called subscriber, so that both the calling subscriber and the calling subscriber are regarded as the calling party from the viewpoint of the CRP; thus it avoids the roaming subscriber being treated as the called party. Above device and method can avoid the roaming subscriber being treated as the called party; therefore, the device and method can save unnecessary long distance call cost for the calling party and the called party and improve session quality for roaming subscribers.

Abstract: Embodiments of the present invention include a TDD-based method for transmitting high-speed data, comprising: first, time slices for uplink sending and downlink sending are allocated in a time frame respectively; second, synchronization time slot for uplink synchronization and synchronization time slot for downlink synchronization, control time slot for transmitting uplink signaling and control time slot for transmitting downlink signaling, as well as several traffic time slots for transmitting high-speed data services are allocated respectively; third, different traffic time slots are configured with different time spans; next, traffic time slots of appropriate time spans are allocated for different users as required for service data transmission; finally, data services are transmitted; with above solution, longer time slots can be allocated for users with higher service levels or better transmission conditions; therefore, embodiments of the present invention can improve data transmission efficiency and spec

Abstract: Provided herein are propylene polymers which are capable of being used as thermoplastic polyolefins just as they emerge from the reactor system described, without further compounding of components which substantially modify the physical properties of the polymers, as such compounding is required of polymers of the prior art. Polymers according to the invention unexpectedly possess both low temperature ductility and high flexural modulus, which properties were related in inverse proportion to one another in the polymers of the prior art.

Abstract: Disclosed herein are methods for producing polymeric materials which are normally tenacious in their character to such degree that their processing by conventional means is not possible, for example substantially-amorphous polyolefins. By introducing a second catalyst capable of producing a powdery polymer into the polymerization system during production of the sticky polymers, these normally sticky, tenacious polymers are rendered into a form which may be processed using conventional means and equipment.

Abstract: Disclosed herein are methods for producing polymeric materials which are normally tenacious in their character to such degree that their processing by conventional means is not possible, for example substantially-amorphous polyolefins. By introducing a second catalyst capable of producing a powdery polymer into the polymerization system during production of the sticky polymers, these normally sticky, tenacious polymers are rendered into a form which may be processed using conventional means and equipment.

Abstract: Disclosed herein are methods for producing polymeric materials which are normally tenacious in their character to such degree that their processing by conventional means is not possible, for example substantially-amorphous polyolefins. By introducing a second catalyst capable of producing a powdery polymer into the polymerization system during production of the sticky polymers, these normally sticky, tenacious polymers are rendered into a form which may be processed using conventional means and equipment.

Abstract: Methods of producing polyolefin polymers by polymerizing an .alpha.-olefin in the presence of a catalyst including a pro-catalyst having a magnesium halide, an aluminum halide, a tetravalent titanium halide, an electron donor, and a silane having the formula R.sub.1 R.sub.2 Si(OR.sub.3) (OR.sub.4), wherein R.sub.1 and R.sub.2 are each an H, C.sub.1-6 alkyl, aryl, C.sub.5-12 cycloalkyl, each of which may be unsubstituted, mono- or di-substituted, and R.sub.3 and R.sub.4 are H, C.sub.1-6 alkyl, or a mono- or di-substituted C.sub.1-6 alkyl, and a co-catalyst comprising an organometallic compound, or reaction products of the pro-catalyst and the co-catalyst, wherein the electron donor is present in an amount sufficient to reduce the stickiness of the resultant polyolefin polymers. Moreover, the polymers produced thereby, and methods of preparing resultant products from the polymers are part of the present invention.

Abstract: A catalyst for use in the production of flexible polyolefins using a pro-catalyst of (a) a magnesium halide, (b) an aluminum halide, (c) a tetravalent titanium halide, (d) an electron donor comprising at least one of 2,6-lutidine, 6-chloro-2-picoline, or 2,6-dichloropyridine; and (e) a silane having the formula R.sub.1 R.sub.2 Si(OR.sub.3)(OR.sub.4), wherein R.sub.1 and R.sub.2 are each an H, C.sub.1-6 alkyl, C.sub.1-6 aryl, C.sub.5-12 cycloalkane, each of which may be unsubstituted, mono- or di-substituted, and R.sub.3 and R.sub.4 are H, C.sub.1-6 alkane, or a mono- or di-substituted C.sub.1-6 alkane, and a co-catalyst of an organometallic compound, as well as an optional external modifier that may be combined to form a catalyst. Methods for preparing the catalyst, for using the same to produce flexible polyolefin compositions having reduced stickiness and tacticity, and the flexible polyolefin compositions produced thereby are also part of the invention.

Abstract: A polymer supported catalyst comprises Ziegler-Natta catalysts immobilized on a magnesium-modified polymer support. The catalyst support is prepared by (1) dissolving a carboxyl group-containing polymer in a solvent and precipitating the polymer in a polar non-solvent, (2) wet-grinding the precipitated polymer, and (3) mixing the ground polymer with an organomagnesium compound or a complex of an organomagnesium compound and an organoaluminum compound to give a magnesium-modified polymer support. Optionally, the resulting magnesium-modified support is treated with a halogen-containing silicon compound. The catalysts may be loaded onto the support by reacting the magnesium-modified support with a transition metal compound to form a catalyst constituent, and then combining the catalyst constituent with an appropriate organo-metallic compound.