Abstract: An optical glass comprising: by cation %, more than 0% and up to 40% of a content rate of La3+; 15% to 65% of a content rate of Ti4+; and more than 0% and up to 20% of a content rate of Zr4+; wherein a refractive index (nd) with respect to a d-line is from 2.00 to 2.35.

Abstract: A method for learning reduction techniques using an anatomical model for training aid is provided. The method for learning the reduction techniques uses the anatomical model for training aid which comprises bone members, the bone members comprising a first bone member and a second bone member, either one of the first bone member or the second bone member being provided with a magnet and the other being provided with a magnet material, and has two connection statuses including a normal connection status where the first bone member and the second bone member are connected in a status similar to a normal connection status of human bones and an abnormal connection status where they are connected in a status different from the normal connection status of human bones.

Abstract: A method for learning reduction techniques using an anatomical model for training aid enabling the learning of reduction techniques without performing reduction on an actual patient is provided.

Abstract: A method for learning reduction techniques using an anatomical model for training aid is provided. The method for learning the reduction techniques uses the anatomical model for training aid which comprises bone members, the bone members comprising a first bone member and a second bone member, either one of the first bone member or the second bone member being provided with a magnet and the other being provided with a magnet material, and has two connection statuses including a normal connection status where the first bone member and the second bone member are connected in a status similar to a normal connection status of human bones and an abnormal connection status where they are connected in a status different from the normal connection status of human bones.

Abstract: A training aid for learning muscles providing a three dimensional way of easily understanding the shape of a muscle and the location and area of the origin/insertion of a muscle and a training method using the same are provided. The training aid for learning muscles comprises at least one bone member and at least one muscle member fixed removably to the bone member by the magnetic force of a magnet at its origin and insertion.

Abstract: A method for learning reduction techniques using an anatomical model for training aid is provided. The method for learning the reduction techniques uses the anatomical model for training aid which comprises bone members, the bone members comprising a first bone member and a second bone member, either one of the first bone member or the second bone member being provided with a magnet and the other being provided with a magnet material, and has two connection statuses including a normal connection status where the first bone member and the second bone member are connected in a status similar to a normal connection status of human bones and an abnormal connection status where they are connected in a status different from the normal connection status of human bones.

Abstract: A spindle motor comprising a base main body, a stator, and a connector means to which a lead portion from a coil of the stator is electrically connected. A core securing portion and a core securing hole are provided in the base main body. The connector menas is provided with a block-shaped connector main body and a plurality of terminal portions disposed in the connector main body, one end portions of the plurality of the terminal portions are exposed to one surface of the connector main body and their other end portions are exposed to the other surface of the connector main body. The stator and the connector are constructed as a unit by connecting lead portions from coils to one end portions of the plurality of the terminal portions. A coil winding apparatus convenient for winding coils on stator cores and connecting one end portions of the coils to the terminal portions of the connector means.