Abstract: A CT apparatus comprises: a gantry; a table on which a subject to be examined is laid; a sensor section for acquiring distance data for determining a distance between a body part to be imaged of the subject and the sensor section; a height-data generating section for generating height data containing data of a height of the body part to be imaged of the subject based on the distance data; and a detecting section for detecting said body part to be imaged based on the height data, wherein the sensor section has a field-of-view region RV representing a region in which it is possible to acquire the distance data, and the field-of-view region RV is defined so that a portion of the table on a side of the gantry falls within the field-of-view region RV and a portion of the table on a side opposite to the side of the gantry falls outside the field-of-view region RV.

Abstract: Compounds of formula (I): ##STR1## wherein: R.sup.1 represents a lower alkyl group selected from methyl groups and ethyl groups;R.sup.2 represents a hydrogen atom or a methyl group; andR.sup.3 represents a group selected from C.sub.1 --C.sub.5 alkoxy groups,and pharmaceutically acceptable acid addition salts thereof have valuable antibiotic activity and are suitable for oral administration. They may be prepared by a variety of synthetic routes.

Abstract: Compounds of formula (I): ##STR1## wherein: R.sup.1 represents a lower alkyl group selected from methyl groups and ethyl groups;R.sup.2 represents a hydrogen atom or a methyl group; andR.sup.3 represents a group selected from C.sub.1 -C.sub.5 alkoxy groups,and pharmaceutically acceptable acid addition salts thereof have valuable antibiotic activity and are suitable for oral administration. They may be prepared by a variety of synthetic routes.

Abstract: The compounds of the formula (I): ##STR1## wherein: R.sup.1 represents a hydrogen atomandR.sup.2 represents a --C(CH.sub.3).sub.3 group; and pharmaceutically acceptable acid addition salts thereof. The invention also provides antibiotics suitable for oral administration containing at least one of said compound and salts.