Abstract: A power supply using a microcontroller for circuit protection and an LED lighting system using the power supply are disclosed. A power supply according to embodiments of the present invention includes a floating converter and at least a first reference voltage source connected to a negative output terminal of the floating converter. A microcontroller is connected to the first reference voltage source and to a control input of the floating converter, which may be a floating buck converter. In some embodiments, a second reference voltage source is connected to the microcontroller. A voltage divider and/or a comparator can be used to provide one or both voltage reference sources.

Abstract: A power supply using a microcontroller for circuit protection and an LED lighting system using the power supply are disclosed. A power supply according to embodiments of the present invention includes a floating converter and at least a first reference voltage source connected to a negative output terminal of the floating converter. A microcontroller is connected to the first reference voltage source and to a control input of the floating converter, which may be a floating buck converter. In some embodiments, a second reference voltage source is connected to the microcontroller. A voltage divider and/or a comparator can be used to provide one or both voltage reference sources.

Abstract: The invention provides a pharmaceutical composition for inhibiting cisplatin, carboplatin or oxaliplatin-sensitive and resistant tumorous cells comprising a combination of demethycantharidin with a platinum-containing anticancer agent and a use thereof. The invention also discloses synergistic effect of demethycantharidin or pharmaceutically acceptable derivative thereof in combination with platinum-containing anticancer agents in inhibiting cisplatin, carboplatin or oxaliplatin-sensitive and resistant tumorous cells.

Abstract: This invention provides novel antitumor demethylcantharidin platinum complexes. This invention also provides a composition comprising at least one of said demethylcantharidin platinum complexes and a suitable carrier. This invention provides a pharmaceutical composition comprising effective amount of at least one of the said demethylcantharidin platinum complexes and a pharmaceutically acceptable carrier. This invention provides a method of inhibiting the growth of tumorous cells comprising contacting the cells with an amount of said demethylcantharidin platinum complex effective to inhibit the growth of said tumorous cells. This invention provides a method of inhibiting the growth of tumorous cells in a subject comprising administering to the subject with an amount of the said demethylcantharidin platinum complexes effective to inhibit the growth of said tumorous cells in the subject. Finally, this invention provides methods for producing said demethylcantharidin platinum complexes.

Abstract: This invention relates to the production of derivatives of hydroxymethoxy mandelic acid (HMMA) and homvanillic acid (HVA), to their use in raising antibodies, and in the production of labelled compounds, and to the use of such materials in immunoassays for HMMA and HVA.