Abstract: A method of measuring conductivity of a silicon thin film is provided. By the method, a capacitive sensor is positioned over a silicon thin film sample with an air-gap between the sensor and the sample, a size of the air-gap is measured using the capacitive sensor while an excitation light source module is turned off, an excitation light is illuminated on the silicon thin film sample by turning on the excitation light source module, where the excitation light is an ultraviolet light, a conductivity change of the silicon thin film sample is measured using the capacitive sensor, and a measurement error due to a deviation of the air-gap is eliminated by normalizing the conductivity change based on a measurement result of the size of the air-gap.

Abstract: The inventive molecular transporter compound shows significantly high permeability through a biological membrane such as a plasma membrane, nuclear membrane and blood-brain barrier, and accordingly, can be effectively used in delivering various biologically active molecules.

Abstract: The inventive molecular transporter compound shows significantly high permeability through a biological membrane such as a plasma membrane, nuclear membrane and blood-brain barrier, and accordingly, can be effectively used in delivering various biologically active molecules.

Abstract: The inventive molecular transporter compound shows significantly high permeability through a biological membrane such as a plasma membrane, nuclear membrane and blood-brain barrier, and accordingly, can be effectively used in delivering various biologically active molecules.

Abstract: The inventive molecular transporter compound shows significantly high permeability through a biological membrane such as a plasma membrane, nuclear membrane and blood-brain barrier, and accordingly, can be effectively used in delivering various biologically active molecules.

Abstract: The inventive molecular transporter compound shows significantly high permeability through a biological membrane such as a plasma membrane, nuclear membrane and blood-brain barrier, and accordingly, can be effectively used in delivering various biologically active molecules.

Abstract: A keypad for inputting alphabetical characters for use in an electronic device comprises an array of keys, each of which is assigned to one of elements of alphabetical characters. Each element is a portion of an alphabetical character and combination of the elements forms each character. The alphabetical character is produced by activation of keys to which the elements constituting the character are assigned.

Abstract: The inventive molecular transporter compound shows significantly high permeability through a biological membrane such as a plasma membrane, nuclear membrane and blood-brain barrier, and accordingly, can be effectively used in delivering various biologically active molecules.

Abstract: This invention provides novel 1,23-dihydroxyvitamin D compounds, a process for preparing such compounds of novel intermediates in such process.As indicated by its binding affinity for the 1.alpha.,25-dihydroxyvitamin D.sub.3 receptor protein, the compounds of this invention would function as effective substitutes for vitamin D and certain vitamin D metabolites for the regulation of calcium and phosphorous metabolism and for treatment of bone-related diseases.