Abstract: A sliding spline shaft device of the present invention includes a male spline and a female spline that is fitted to the male spline in an axially slidable manner, and at least one of the splines has a surface processed layer. The surface processed layer includes an undercoat layer, an intermediate layer containing phosphate, and a topcoat layer containing solid lubricant, in this order. The undercoat layer contains iron nitride and/or iron carbide. Thus, the surface of a base material has high hardness. As a result, microscopic deformation of the sliding surface is reduced, and increase in a real contact area is suppressed, whereby stick-slip is prevented.

Abstract: An exercise detection apparatus including: a load stage comprising a load surface onto which a load of parts or all of a human subject is applied; a load measurer for repeatedly or continuously measuring the load on the load surface; a calculator for calculating a difference between adjacent local maximum and minimum in the load varying over time measured by the load measurer repeatedly or continuously; and a detector for detecting a motion of the human subject when the difference calculated by the calculator is within a range.

Abstract: An exercise detection apparatus including: a load stage comprising a load surface onto which a load of parts or all of a human subject is applied; a load measurer for repeatedly or continuously measuring the load on the load surface; a calculator for calculating a difference between adjacent local maximum and minimum in the load varying over time measured by the load measurer repeatedly or continuously; and a detector for detecting a motion of the human subject when the difference calculated by the calculator is within a range.

Abstract: Disclosed is an improved living body variable measuring apparatus equipped with a display capable of presenting a time-related graphic representation. The graphic representation is composed of crosswise arrangement of rectangles relative to abscissa and ordinate representing time and measured quantity respectively. Each time-related column has a selected rectangle representing the quantity of a measured living body variable. The horizontal time-related arrangement of narrow rectangles facilitates survey of graphic representation. The living body variable measuring apparatus permits the user to select desired data among those measured for record, preventing so selected data from invading locations allotted to others' data and vice versa.

Abstract: An object of the present invention is to provide a user with a bio-characteristic index in an easily realizable manner by controlling and displaying said index in a long-term viewpoint, and, in particular, to display a transition of user's body fat in an easily sensible manner and to provide a body fat meter employing such display system which allows the user to execute a preferable dieting and to exercise a management of his (her) body weight and body fat. The body fat meter of the present invention graphically displays on a display section simultaneously a daily, a weekly and a monthly variations of past body fat mass stored in a storage section. Further, variation of body weight values is displayed together with that of the body fat mass simultaneously in the same manner thereto. This allows the user to detect an unreasonable dieting where only the fat free tissue decreases but the body fat doesn't decrease, and provides the user with a safe and healthy weight and body fat management system.

Abstract: Disclosed is a bioelectric impedance measuring apparatus which can prevent such abnormal condition than an excessive current is applied to a human body when elements in the circuit has failed or is damaged, with a simple circuit configuration and without decreasing the measuring accuracy of the bioelectric impedance. The bioelectric impedance measuring apparatus according to the present invention is configured such that a capacitor or a set of a capacitor and a resistor arranged in parallel with each other is installed between an electrode to be brought into contact with a human body and a bioelectric impedance measuring circuit section comprising a generating section for generating an alternating current applied to a human body for measurement, a measuring section for measuring a voltage value between the portions where the current is applied to the human body, a computing section for computing a bioelectric impedance value, and a central processing unit (CPU).

Abstract: Disclosed is an improved living body variable measuring apparatus equipped with a display capable of presenting a time-related graphic representation. The graphic representation is composed of crosswise arrangement of rectangles relative to abscissa and ordinate representing time and measured quantity respectively. Each time-related column has a selected rectangle representing the quantity of a measured living body variable. The horizontal time-related arrangement of narrow rectangles facilitates survey of graphic representation. The living body variable measuring apparatus permits the user to select desired data among those measured for record, preventing so selected data from invading locations allotted to others' data and vice versa.

Abstract: An industrially excellent, novel process for producing cephem compounds which are useful as medicines, particularly, antibiotics and represented by the following formula (III): ##STR1## wherein R.sup.1 means either group represented by the following formula: ##STR2## R.sup.2 denotes a carboxyl group or a carboxyl anion, and R.sup.3 stands for a lower alkyl group, a halogen atom, a lower alkyl group substituted by an aliphatic acyloxy group having 1-6 carbon atoms, or any one of the groups represented by the following formulae: ##STR3## which comprises reacting in water a 3-cephem-4-carboxylate represented by the following formula (I): ##STR4## or a salt thereof with an acid chloride represented by the formula (II), R.sup.1 COCl.