Abstract: The present invention relates to a pharmaceutical composition for preventing or treating obesity or non-alcoholic fatty liver, containing dental tissue-derived mesenchymal stem cells cryopreserved by vitrification. The pharmaceutical composition for preventing or treating obesity or non-alcoholic fatty liver, of the present invention, reduces body weight, lowers serum adipokine concentration, allows the liver to recover in view of histological findings, and improves lipid metabolic enzymes in the liver, thereby exhibiting remarkable prevention and treatment effects on obesity or non-alcoholic fatty liver. In addition, dental tissue-derived mesenchymal stem cells, which are the active ingredients of the present invention, are mesodermal stem cells having verified safety and may be obtained with the least invasiveness, and thus are expected to be effectively used as a cell therapeutic agent for obesity or non-alcoholic fatty liver.

Abstract: The present invention relates to a pharmaceutical composition including vitrified periodontal tissue-derived mesenchymal stem cells for prevention or treatment of male infertility. The pharmaceutical composition for prevention or treatment of male infertility according to the present invention recovers sex hormone levels in seminiferous tubules of atrophic testes and blood to normal levels through improvement in the activity of lipid metabolism enzymes in the liver, thereby exhibiting remarkable prophylactic and therapeutic effects on male infertility. In addition, the periodontal tissue-derived mesenchymal stem cells which are an active ingredient in the present invention can be obtained in the most non-invasive manner and as such, are expected to be advantageously used as a cell therapy product for male infertility.

Abstract: A method and apparatus to establish a class of a universal interface device, and more particularly, a method and apparatus to receive classes supported by the universal interface device and to establish a class among the received classes supported by the universal interface device as the class of the universal interface device in a system in which a universal interface host and the universal interface device are connected via a universal interface. The method of establishing the class of the universal interface device includes receiving the classes supported by the universal interface device, establishing a class selected among the received classes of the universal interface device as the class of the universal interface device, and recognizing the established class as the class of the universal interface device.

Abstract: An automatic maintenance-performing method to determine whether a first and a second power supply are operational, and performing a periodic maintenance operation at a predetermined time by supplying an electric power to the second power supply when the first power supply is in an ‘on’ state and the second power supply is in an ‘off’ state, and at the predetermined period without supplying the electric power to the second power supply when both the first and second power supplies are in the ‘on’ state, as a result of the decision.

Abstract: Provided are a method and apparatus for forming an image by receiving image data directly from an image acquisition device such as a digital camera using a USB interface or the like. The method includes receiving image data of a first image of a plurality of images to be printed from the image acquisition device; printing the first image; and while the first image is being printed, receiving image data of a second image of the plurality of images from the image acquisition device. When printing a plurality of images by receiving image data corresponding to the plurality of the images directly from the image acquisition device, the image forming apparatus receives image data corresponding to one image to be printed. After receiving the image data, the image forming apparatus immediately requests the image acquisition device to send image data of the next image to be printed and receives the image data.

Abstract: A method and apparatus to establish a class of a universal interface device, and more particularly, a method and apparatus to receive classes supported by the universal interface device and to establish a class among the received classes supported by the universal interface device as the class of the universal interface device in a system in which a universal interface host and the universal interface device are connected via a universal interface. The method of establishing the class of the universal interface device includes receiving the classes supported by the universal interface device, establishing a class selected among the received classes of the universal interface device as the class of the universal interface device, and recognizing the established class as the class of the universal interface device.

Abstract: An automatic maintenance-performing method to determine whether a first and a second power supply are operational, and performing a periodic maintenance operation at a predetermined time by supplying an electric power to the second power supply when the first power supply is in an ‘on’ state and the second power supply is in an ‘off’ state, and at the predetermined period without supplying the electric power to the second power supply when both the first and second power supplies are in the ‘on’ state, as a result of the decision.