Retrogradation of cooked rice, stored under various conditions, was studied by the β-amylasepullulanase method. Due to the higher sensitivity of the new method among raw, gelatinized and retrograded starches than the conventional methods, we were able to follow the changes of retrogradation during the storages of starch paste and cooked rice. Five percent corn starch paste retrograded more rapidly than that of rice starch, during low temperature storage (5°C). Retrogradation of cooked rice was also determined. It was suggested that the deep freezing storage was the best condition to keep cooked rice from retrograding among the conditions examined.

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The rheological properties of unheated and heated soy protein gel (16-20 g/100 ml) were investigated in region of small and large deformation. By the static and dynamic measurements of specimens, the dynamic viscoelasticity, the static viscoelasticity and the rupture properties were determined by the Rheolograph-Gel, Rheolometer and Dynagraph, respectively.
It was recognized that all of the rheological parameters increased with the rise of concentration of soy protein gel. Especially, the concentration dependence of rupture stress and rupture energy in large deformation was remarkably large. However, the parameters of heated gel were about twice as large as those of unheated gel in case of small deformation. However, the former was about 10-20 times as large as the later in case of large deformation. Accordingly, it was recognized that heating process made unheated soy protein gel strong against rupture.
It was found that the dynamic modulus corresponded to the modulus by the static measurement in all of the gels. The static and dynamic viscoelastic constants in small deformation differed obviously from the parameters of rupture property in various gels.

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In order to obtain information concerning the adsorption of polyelectrolytes, the differential capacity (C) of mercury-polyelectrolyte solution interfaces was measured at various applied potentials (E) by using Grahame's AC bridge method with the dropping mercury electrode. The polyelectrolytes used were methacryloyloxy-ethyltrimethylammonium methylchloride homopolymer (A) and copolymers of A and acrylamide (B, C).
The C-E curves obtained showed one dynamic peak at cathodic polarization and the capacity suppression over anodic polarization range. The height of dynamic peak (C_p) and the minimum capacity over the zero polarization range (C_min) depended on polyelectrolyte concentrations. This result could be explained by the increase in the surface coverage with polyelectrolyte molecules and the rearrangement thereof resulting from increasing polyelectrolyte concentrations. It was also found that the values of C_min observed at sufficiently high concentrations depend on the molecular weight and cationic group content of polyelectrolytes.

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For the purpose of clarifying the diurnal change of the human height measurements, the stature, cervicale height and right spina iliaca anterior superior height of 10 female students (19-26 years of age) were taken twice in one and another day. The measurement was practiced at 22 o'clock and every 2 hr from 6 (just after the hour of rising) to 16 o'clock on the following day, i.e., 14 times for each subject.
The Variance Analysis Method was made using 3 factors; measurement hours (6 levels), subjects (10 levels), and measurement dates (2 levels). Reduction occured on the stature, head and cervical height, and lower limb height were discussed respectively.
The following conclusions were obtained :
1) The diurnal change takes place mainly on the trunk.
2) Total reduction of the stature from 6 to 16 o'clock is 1.5 cm on an average. Sixty % of that occurs about 8 o'clock and 80% of that does about 10 o'clock.
3) It is desirable to avoid the stature measurement within 3 hr after rising, because the physiological statural reduction during this period exceeds the measurement errors.

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It has been claimed that appropriate novelty is one of the conditions of desirable toys, and this hypothesis has been verified in experimental conditions by using novel and complexible stimulus.
However, if we consider the fact that exploratory behavior toward novel toys is induced where the balance of approach-avoidance relation is established, it is more reasonable to assume that the interaction system between toys and children varies according to the characteristics of toys, children, and situation.
Focusing on toy novelty, individual anxiety level, and the presence of a peer, which correspond to the three factors mentioned above, the present study aims to clarify the effect of each of them and their interaction on the play and exploratory behavior of preschool children.
It was found that the exploratory behavior of the children who had a high anxiety level was facilitated by the presence of their peer.

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In the paper, the manner of entertainment at the living room are studied and the ideal use of the living room is discussed. The living room is considered to have a function of entertainment and actually used as the place of entertainment. Hereafter, it is desirable to discuss the living room used as the place of entertainment as well as family room. When children are small, it is necessary to consider that the living room should play the convenient and universal roles.

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In this study the object is to investigate how health and medical facilities influence farmer's household economy, from the viewpoint of household obligation and recipience of the national health insurance.
The samples were recipients of the national health insurance at K area in north Nagano prefecture, the same as Part 1.
Conclusions :
1) Household obligation and recipience of the national health insurance differ with household income, family composition and farmer's pattern. In K area, high value of obligation ratio is seen in the IVth income rank (a comparative high class), nuclear family type and the part-time type of farmer's pattern. The life stages of farm managers with high obligation ratio belong to the 45-54 years range.
2) From the household economical point of view, the problem of K area is to bring down, first premium, second payments for medical fees, and third individual obligation.
In order to solve these problems, it is necessary to construct a regional health promotion system and family plan for health promotion, which are necessary to be put into action.

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This study attempts to construct a scale by which people's attitude toward family life education can be measured; on how families educate children, and to know its nature.
This measurement is based on Thurstone's equal-interval scaling technique. Twenty representative opinions arranged on a straight line (psychological continuum) at almost equal-intervals were selected.
Attitudes of both sex were measured by the aid of these opinions. As a result, their respective mean values proved to be approximately 4.0. The general attitude toward family life education seems fairly affirmative.

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[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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