Gender and physical punishment: the filipino children's experience

This paper reports selected findings from a doctoral dissertation on Filipino children's attitudes towards physical punishment. The findings of this research stem from a survey of 270 grade‐six students in Iloilo, Philippines. The results indicated that the majority (61.1%) had experienced physical punishment at home. The most common punishment children received was pinching (74.5%), followed by beatings (49.7%). The chi‐square analysis revealed that more boys than girls were physically punished (p < 0.05). Mothers were found to be the most frequent users of physical punishment. The prevalence of physical punishment at home may be attributed to Philippine law which ‘allows parents to physically punish their children as may be necessary for the formation of his good character’ as reflected in Article 45 of Presidential Decree No. 603, known as ‘The Child and Youth Welfare Code’ (Article 45, PD 603). The tendency of Filipino parents to punish sons more harshly than their daughters could be explained in relation to how boys and girls are regarded in society. Boys are expected to be tough and brave. By administering harsher discipline, parents may believe they are moulding their sons to be strong and to prepare them to be future pillars of society. Copyright © 2010 John Wiley & Sons, Ltd.     

The ingestion in wolf spiders I. Capacity of gut ofLycosa pseudoannulata

Summary An wolf spider,Lycosa pseudoannulata, collected from the field were reared in test tubes supplied with fruit flies as the food, and the number and weight of fruit flies killed per unit time and the weight of residuum of killed flies were recorded. When the cumulative number of flies killed by a spider was plotted against time after the beginning of food supply, the angle of the curve obtained decreased gradually until a constant value. In this time, it seems that the gut of spider had saturated with food and the increase rate of number of flies killed reflects the rate of food disappeared from gut by assimilation and egestion. The amount of ingestion was obtained by subtracting the weight of residuum and the gain of live weight of the spider from the weight of killed flies. After the gut has saturated, the amount of food remained in the gut is considered to be equal to the capacity of gut, which is an essential factor in the study of predation. The amount of food disappearance from gut was also estimated. There was a linear relationship between the log body weight of spiders and the log capacity of gut. The linear relationship was also seen between the log total amount of ingestion and the log total amount of food disappeared from gut.     

Exact Estimation of Demand Functions under Block-Rate Pricing

This article proposes an exact estimation of demand functions under block-rate pricing by focusing on increasing block-rate pricing. This is the first study that explicitly considers the separability condition which has been ignored in previous literature. Under this pricing structure, the price changes when consumption exceeds a certain threshold and the consumer faces a utility maximization problem subject to a piecewise-linear budget constraint. Solving this maximization problem leads to a statistical model in which model parameters are strongly restricted by the separability condition. In this article, by taking a hierarchical Bayesian approach, we implement a Markov chain Monte Carlo simulation to properly estimate the demand function. We find, however, that the convergence of the distribution of simulated samples to the posterior distribution is slow, requiring an additional scale transformation step for parameters to the Gibbs sampler. These proposed methods are then applied to estimate the Japanese residential water demand function.     

Bayes Estimation of Intraclass Correlation Coefficients Under Unequal Family Sizes

Bayesian inference for the intraclass correlation ρ is considered under unequal family sizes. We obtain the posterior distribution of ρ and then compare the performance of the Bayes estimator (posterior mean of ρ) with that of Srivastava's (1984) estimator through simulation. Simulation study shows that the Bayes estimator performs better than the Srivastava's estimator in terms of lower mean square error. We also obtain large sample posteriors of ρ based on the asymptotic posterior distribution and based on the Laplace approximation.     

The Kan-No-Mushi: An Inner Externalization that Enables Compromise?

This new section is devoted to explorations — to work-in-progress, ideas, free associations, perplexities, insights/outsights, musings, searches and experiments — with an emphasis on practicalities. Above all, it is aimed at the family therapist on the job. We hope to develop a section that is lively, interesting and informative. where practitioners can talk with one another about work they've been doing or thinking of doing, in an immediate way using a variety of short formats. will be led by David Epston (New Zealand), Sue Jackson (Victoria) and Andrew Relph (Western Australia). If you'd like to contribute to Explorations, please contact David. Sue or Andrew, or write direct to the Journal. — Editor.     

SAME‐SEX EXPERIENCE AND MENTAL HEALTH DURING THE TRANSITION BETWEEN ADOLESCENCE AND YOUNG ADULTHOOD

Previous research has demonstrated that people who report same‐sex experience tend to have poorer mental health than heterosexual people in adolescence and adulthood. Yet, little is known about how same‐sex experience is associated with changes in mental health between the two life stages. Using data from the National Longitudinal Study of Adolescent Health (n = 12,056), this study assesses patterns of same‐sex experience between adolescence and young adulthood and their consequences for changes in depressive symptoms, binge drinking, and drug use. Compared to people with no same‐sex experience, those who report such experience only in adolescence show greater levels of mental health problems in adolescence, but they do not show any worse mental health changes during the transition into young adulthood. People who develop their first same‐sex experience in young adulthood, however, tend to show worse changes, consistent with the argument that entry into a stigmatized role is psychologically harmful. Among females, those who report same‐sex experience in both life stages also show worse mental health changes, indicating that the continuity in minority status contributes to their cumulative disadvantage. However, these differences are modest, and substantial amounts of variations in mental health changes are observed within each group. Findings are used to address the dynamic aspect of mental health disparity linked to sexuality.     

Estimating the Lyapunov exponent from chaotic time series with dynamic noise

In this paper, we propose an estimator of the Lyapunov exponent of the skeleton for chaotic time series with dynamic noise and prove the consistency of the estimator under some assumptions.     

Dispersal of adult grasshoppers,Mecostethus magister, under the field condition

Summary Estimation of the number of adult grasshoppers,Mecostethus magister, was made by means of the mark-and-recapture method. The birth and death rates are possible to be estimated at the same time, but the immigration and the emigration rate are inevitably involved in these respectively. The immigration and emigration rates must be made clear to know the true birth and death rates. For this purpose the movement of the marked males in 1963 was analyzed. The grasshoppers dominantly moved in the directions of N, NW and W, and the difference in frequency among the movement directions was not so large. The distribution of the dispersal-distance relationship of each quadrate on each released day was fitted approximately to normal distribution. It could be concluded that almost all of the grasshoppers moved within the range of about 31–35m. The emigration rate from the quadrate (12×12m²) was about 0.73–0.77 and the difference in the rate among the released days was small. From these values the emigration rate from the station (84×60m²) was estimated as 0.21–0.23. Subtracting the emigration rate from the death-and-emigration rate, the true death rate was calculated. The death rate was very low until the number of males reached to the peak, then increased gradually. Supposing that immigration rate was equal to the emigration rate, the true birth rate was also estimated. But the presumption might not be pertinent, for the value of birth rates became negative.