Abstract: Disclosed are novel compounds of Chemical Formula 1, optical isomers of the compounds, and pharmaceutically acceptable salts of the compounds or the optical isomers. The compounds, isomers, and salts exhibit excellent activity as GLP-1 receptor agonists. In particular, they, as GLP-1 receptor agonists, exhibit excellent glucose tolerance, thus having a great potential to be used as therapeutic agents for metabolic diseases. Moreover, they exhibit excellent pharmacological safety for cardiovascular systems.

Abstract: A semiconductor device includes, first and second source/drain patterns on an active pattern and spaced apart from each other, a first source/drain contact on the first source/drain pattern and including a first source/drain barrier film and a first source/drain filling film on the first source/drain barrier film, a second source/drain contact on the second source/drain pattern, and a gate structure on the active pattern between the first and second source/drain contacts and including a gate electrode, wherein a top surface of the first source/drain contact is lower than a top surface of the gate structure, and a height from a top surface of the active pattern to a top surface of the first source/drain barrier film is less than a height from the top surface of the active pattern to a top surface of the first source/drain filling film.

Abstract: An antenna device for a mobile terminal. The antenna device includes a first antenna pattern provided within a case of the mobile terminal, and a second antenna pattern provided within the case and electrically connected to the first antenna pattern through contact with the first antenna pattern. Therefore, by forming an antenna device with an antenna pattern for use in a low frequency band, the antenna device may be conveniently used and decrease the size of the mobile terminal.

Abstract: An antenna device for a mobile terminal. The antenna device includes a first antenna pattern provided within a case of the mobile terminal, and a second antenna pattern provided within the case and electrically connected to the first antenna pattern through contact with the first antenna pattern. Therefore, by forming an antenna device with an antenna pattern for use in a low frequency band, the antenna device may be conveniently used and decrease the size of the mobile terminal.