Abstract: Provided is a composition and method for reducing a cellular senescence level by inhibiting the activity or expression of one or more of DCUN1D3 protein or gene encoding same and a polynucleotide having a nucleotide sequence of SEQ ID NO: 5, as well as a method of treating a disease or a disease symptom associated with an increased cellular senescence level in a mammal.

Abstract: Provided is a composition and method for reducing a cellular senescence level by inhibiting the activity or expression of one or more of DCUN1D3 protein or gene encoding same and a polynucleotide having a nucleotide sequence of SEQ ID NO: 5, as well as a method of treating a disease or a disease symptom associated with an increased cellular senescence level in a mammal.

Abstract: Provided is a composition and method for reducing a cellular senescence level by inhibiting the activity or expression of one or more of DCUN1D3 protein or gene encoding same and a polynucleotide having a nucleotide sequence of SEQ ID NO: 5, as well as a method of treating a disease or a disease symptom associated with an increased cellular senescence level in a mammal.

Abstract: Disclosed is a heart stabilizer used when a coronary artery of a heart is operated. The heart stabilizer allows an intake tube connected to a suction unit for holding the heart to perform a suctioning operation while preventing clogging in any circumstances, allows the direction of the suction unit to be converted to forward, rearward, leftward, and rightward directions, allows the angle of the suction unit to be minutely adjusted even after the suction unit is primarily fixed, and is cleaned while the suction unit maintains the adjusting function of the adjustor for adjusting and fixing the angle.

Abstract: Disclosed is a heart stabilizer used when a coronary artery of a heart is operated. The heart stabilizer allows an intake tube connected to a suction unit for holding the heart to perform a suctioning operation while preventing clogging in any circumstances, allows the direction of the suction unit to be converted to forward, rearward, leftward, and rightward directions, allows the angle of the suction unit to be minutely adjusted even after the suction unit is primarily fixed, and is cleaned while the suction unit maintains the adjusting function of the adjustor for adjusting and fixing the angle.

Abstract: A method of determining a type of an optical disc loaded into a data recording and/or reproducing apparatus, which includes a plurality of laser diodes and records data onto and/or reproduces data from diverse types of optical discs, and the data recording and/or reproducing apparatus for implementing the method. The method includes selecting one laser diode from among the plurality of laser diodes, radiating light onto the loaded optical disc while approaching and/or withdrawing the selected laser diode to and from the loaded optical disc, counting a number of reflection signals generated from the light reflected from the loaded optical disc, and determining the type of the loaded optical disc based on the number of reflection signals.