On the abundance ofDermatophagoides pteronyssinus (Trouessart, 1897) (Pyroglyphidae: Acarina) in house dust

Summary The dominance of the Pyroglyphidae in house dust has been influenced by a number of factors. The humidity in houses dropped recently to such an extent that only Pyroglyphidae can survive. When temperature and relative humidity are favorable forAcarus siro andGlycyphagus destructor as well asDermatophagoides pteronyssinus, Dermatophagoides diminished in numbers by competition. Introduction of the predatorCheyletus eruditus into this mixed breeds causes the extermination ofDermatophagoides. The vacuum cleaner trapped mites, butDermatophagoides was protected by its habit to hide in cracks and crevices. The use of insecticides has a more killing effect onAcarus andGlycyphagus than onDermatophagoides. Supported by a grant of the Dutch Asthma Foundation.     

试论公安机关行政处罚中当事人的权利

公安机关在依法作出行政处罚的同时,当事人也享有相应的法律权利,主要有知情权(被告知权)、陈述权、申辩权、要求听证权、申请公安行政复议权、提起公安行政诉讼权和要求公安行政赔偿权.充分地保护当事人的这些权利,在"依法治国,建设社会主义法治国家"的今天,显得非常重要.     

Paternal and Maternal Experiences in Caring for Chinese Children with Attention Deficit Hyperactivity Disorder in Hong Kong

This paper reports the results of an exploratory study that (i) identified parental stress and competence, parents’ perception of their children's attention deficit hyperactivity disorder (ADHD) symptoms, and the parent‐child relationship in caring for children with ADHD; (ii) compared paternal and maternal experiences in these areas; and (iii) examined the effect of children's ADHD behavior on paternal and maternal experiences in Hong Kong Chinese parents. Seventy‐two (59.5%) mothers and 49 (40.5%) fathers participated in the study, in which data were collected using a structured questionnaire. The results showed that: (i) mothers’ level of parental stress was higher than fathers’, but paternal and maternal competence in child‐rearing did not significantly vary; (ii) mothers perceived the child's ADHD behavior more seriously than fathers; (iii) both mothers and fathers had positive perceptions of their parent‐child relationship; and (iv) gender, employment, ADHD symptoms, and parental satisfaction explained the significant variance in parental stress but did not explain the significant variance in parental competence. Implications for social work practice and service development are discussed.     

Wait Until Your Mother Gets Home! Mothers' and Fathers' Discipline Strategies

From a traditional viewpoint, fathers are seen as the main disciplinarian in the family. However, recent studies suggest that these traditional family role patterns may have changed. In this study, we observed discipline strategies of mothers and fathers toward their sons and daughters. Participants included 242 families with two children (1 and 3 years of age). Findings revealed that parental discipline varied by the age of the children, but that mothers disciplined their children more often than fathers. Fathers, conversely, showed more laxness in response to child non‐compliance. Gender of the children was only related to physical interference, with mothers using more physical interference with boys than fathers, irrespective of birth order. Taken together, these findings highlight the importance of parent gender for parent–child interactions in early childhood, but also suggest that child age should be taken into account as important explanatory factors.     

Simulating Controlled Variate and Rank Correlations Based on the Power Method Transformation

The power method transformation is a popular algorithm used for simulating correlated non normal continuous variates because of its simplicity and ease of execution. Statistical models may consist of continuous and (or) ranked variates. In view of this, the methodology is derived for simulating controlled correlation structures between non normal (a) variates, (b) ranks, and (c) variates with ranks in the context of the power method. The correlation structure between variate-values and their associated rank-order is also derived for the power method. As such, a measure of the potential loss of information is provided when ranks are used in place of variate-values. The results of a Monte Carlo simulation are provided to confirm and demonstrate the methodology.     

Estimation Under the Lehmann Regression Model with Interval-Censored Data

We consider the estimation problem under the Lehmann model with interval-censored data, but focus on the computational issues. There are two methods for computing the semi-parametric maximum likelihood estimator (SMLE) under the Lehmann model (or called Cox model): the Newton-Raphson (NR) method and the profile likelihood (PL) method. We show that they often do not get close to the SMLE. We propose several approach to overcome the computational difficulty and apply our method to a breast cancer research data set.     

A new model of coalition formation

In this paper, a new model of multidimensional coalition formation in politics is presented. The model provides an opportunity to analyze a number of different kinds of issues at the same time. A policy space consists of a finite number of independent sub-spaces (policy spaces on certain issues), which can be multidimensional. Any policy sub-space on a certain sub-issue can be either a Euclidean space or (in principle) any other type of set. So, it is possible to include issues which cannot be represented by a Euclidean space or a fixed sum. A government is defined as a pair consisting of a majority coalition and a policy supported by this coalition. The majority coalition may be not minimal winning. Each party is allowed to give one qualification to a policy on a certain issue and to a majority coalition: desirable of a certain degree, acceptable, or unacceptable. By representing party preferences the way we do, we can include both rent-seeking and idealistic motivations in one consistent model. We define the value of a policy/coalition/government to a party, and the notions of a feasible and stable policy/coalition/government. The model uses party preferences in order to predict government policy. Necessary and sufficient conditions for the existence and uniqueness of a stable government are investigated. Moreover, some alternative definitions of a stable government are introduced, and relations between these definitions and the chosen definition of a stable government are established.For Agnieszka Rusinowska the research for this paper was done during a stay as a Marie Curie fellow at Tilburg University, Department of Philosophy.     

A study of sexual satisfaction and frequency of sex among Hong Kong Chinese couples

There have been several studies in Western societies on the causes and consequences of sexual satisfaction within marriage. Little is known, however about the marital sexual relationship in Chinese societies. Moreover, most published studies used married individuals rather than married couples as participants. The present study examined data from a well-established knowledge, attitude, and practice (KAP) survey of 1,124 Hong Kong Chinese couples on martial sexual relationship. A conceptual model was tested using structural equation modeling (SEM). Interest in sex was found to be the strongest predictor of both sexual satisfaction and frequency of sex for both husbands and wives. Among the sociodemographic variables, the following two were significantly associated with lower frequencies of sex: for wives, that of having a full-time job; and for husbands, the factor of age. Theoretical implications for research on the interplay among culture, marriage, and sex in non-Western societies are discussed.