Abstract: A lighting device includes a transparent body member, a light emitting diode (LED) strip at a periphery of the transparent body member, and a switch connected to the LED strip. The LED strip includes a first group of LED elements arranged along a length direction of the LED strip, and a second group of LED elements arranged along the length direction of the LED strip. The switch can turn ON the first group of LED elements when the switch is in a first state, and can turn ON the second group of LED elements when the switch is in a second state.

Abstract: A lighting device includes a transparent body member, a light emitting diode (LED) strip at a periphery of the transparent body member, and a switch connected to the LED strip. The LED strip includes a first group of LED elements arranged along a length direction of the LED strip, and a second group of LED elements arranged along the length direction of the LED strip. The switch can turn ON the first group of LED elements when the switch is in a first state, and can turn ON the second group of LED elements when the switch is in a second state.

Abstract: An apparatus for making directional resistivity measurements of a subterranean formation includes a resistivity tool body with a longitudinal axis and an outer surface, a first antenna with two open ends deployed below the outer surface, a second antenna deployed below the outer surface and spaced at an axial distance from the first antenna, and at least one slot formed on the outer surface. A corresponding method for making directional resistivity measurements includes rotating a resistivity tool in a borehole, utilizing a transmitter-receiver antenna group formed in the resistivity tool to process an electromagnetic wave, and computing a resistivity-related measurement from the electromagnetic wave received on the receiver antenna.

Abstract: The present invention provides a vesicle having a unilamellar bilayer including a lipid and a second bilayer component selected from a membrane protein or a functionalized lipid. The vesicle also includes a component encapsulated by the unilamellar bilayer, wherein the encapsulated component includes a protein, a peptide, an enzyme, an oligonucleotide, or a polynucleotide. Also included are methods of making the vesicles of the present invention.

Abstract: A process of preparing an alpha-anomer enriched 2-deoxy-2,2-difluoro-D-ribofunanosyl sulfonate, which is useful as an intermediate in the preparation of a beta nucleoside, such as gemcitabine, an anti-tumor agent. A beta-2-deoxy-2,2-difluoro-D-ribofunanosyl sulfonate is heated and converted to an alpha-2-deoxy-2,2-difluoro-D-ribofunanosyl sulfonate in the absence of an effective amount of a sulfonate salt to facilitate the conversion. In addition, an anomeric mixture of an alpha-anomer and a beta-anomer of 2-deoxy-2,2-difluoro-D-ribofunanosyl sulfonate can be dissolved in a mixture of water and a solvent and heated to produce a lactol, which may be further converted to an alpha-anomer enriched 2-deoxy-2,2-difluoro-D-ribofunanosyl sulfonate.

Abstract: A process of preparing an alpha-anomer enriched 2-deoxy-2,2-difluoro-D-ribofunanosyl sulfonate, which is useful as an intermediate in the preparation of a beta nucleoside, such as gemcitabine, an anti-tumor agent. A beta-2-deoxy-2,2-difluoro-D-ribofunanosyl sulfonate is heated and converted to an alpha-2-deoxy-2,2-difluoro-D-ribofunanosyl sulfonate in the absence of an effective amount of a sulfonate salt to facilitate the conversion. In addition, an anomeric mixture of an alpha-anomer and a beta-anomer of 2-deoxy-2,2-difluoro-D-ribofunanosyl sulfonate can be dissolved in a mixture of water and a solvent and heated to produce a lactol, which may be further converted to an alpha-anomer enriched 2-deoxy-2,2-difluoro-D-ribofunanosyl sulfonate.

Abstract: An auxiliary condenser includes a plurality of heat conductive tubes connected in series between a compressor and a main condenser of an air conditioning system to absorb heat energy of compressed, hot, gas state coolant outputted from the compressor, absorptive covering means covered on the heat conductive tube to absorb condensed water from evaporator means of the air conditioning system for carrying heat away from the heat conductive tubes by means of evaporation.