Abstract: Provided is a semiconductor device in which a doping concentration peak of a buffer region has a local maximum at which a doping concentration shows a local maximum value, a lower tail in which the doping concentration monotonously decreases from the local maximum toward a lower surface, and an upper tail in which the doping concentration monotonously decreases from the local maximum toward an upper surface, and at least one of the doping concentration peaks of the buffer region is a gradual concentration peak in which a slope ratio obtained by dividing an absolute value of a slope of the upper tail by an absolute value of a slope of the lower tail is 0.1 or more and 3 or less.

Abstract: A revenue management system 100 includes a communication device 105 and an arithmetic device 104 configured to retrieve predetermined information including room sales price and customer rating for a predetermined accommodations facility and another accommodations facility other than the predetermined accommodations facility from web sites of multiple net agents 200, a site controller 300, and a terminal 400, etc., at predetermined time intervals; identify another accommodations facility as a competitive facility based on the information or as designated by the terminal 400 and the room sales price thereof, calculate a price obtained by increasing/decreasing, at a predetermined rate, a room sales price of the predetermined accommodations facility, as an offered price according to an extent of separation and a separation direction between a customer rating of the identified competitive facility and a customer rating of a predetermined accommodations facility, and send the offered price to a terminal.

Abstract: The present invention provides a single strand polynucleotide sequence comprising a target gene, a complementary strand nucleic acid sequence, and a component sequence.

Abstract: An etching solution having an etch rate of 2 ?/minute or greater for a film having a relative dielectric constant of 8 or higher (a High-k film, and whose ratio of the etch rate of a thermal oxide (THOX) film to that of a High-k film is ([THOX etch rate]/[High-k film etch rate]) is 50 or less.

Abstract: The present invention provides a single strand polynucleotide sequence comprising a target gene, a complementary strand nucleic acid sequence, and a component sequence.

Abstract: An object is to effectively preparing a fluorinated compound by developing a catalyst which is effective in the fluorination of a halogenated alkane or alkene with hydrogen fluoride by a gas phase fluorination or addition of hydrogen fluoride. To this end, a catalyst which comprises a least one element selected from the group consisting of Ti, V, Zr, Mo, Ge, Sn and Pb, and alumina, aluminum fluoride or partially fluorinated alumina is used. This catalyst is prepared by an impregnation method to support the above element on alumina and the like, or a precipitation method in which the catalyst is co-precipitated from a solution containing an aluminum compound and a compound of the above element.

Abstract: This present invention provides a vector for expression and secretion of a polypeptide by directly joining a DNA sequence coding for a signal peptide to a DNA sequence coding for the desired polypeptide, the vector containing the DNA sequence coding for the signal peptide, a vector for expression and secretion of the desired polypeptide as defined above and further having incorporated therein the DNA sequence coding for the desired polypeptide, a microorganism transformed by the secretion vector, and a process for producing the desired polypeptide by growing the microorganism.