Association of sleep quality, media use and book reading with behavioral problems in early childhood. The Ulm SPATZ Health Study.

Study Objectives: The objective of the study was to investigate the association of sleep quality, media use and book reading on internalizing, externalizing and prosocial behavior in early childhood. Methods: In this cross-sectional study, we investigated a data set consisting of three consecutive yearly waves of the prospective Ulm SPATZ Health Study, conducted in southern Germany with 565, 496, and 421 children of 4-6 years of age, respectively.Standardized effects of the overall score and subscales of the Children's Sleep Habits Questionnaire, parent-reported child media use and book reading as well as their interaction term on the total score of the Strengths and Difficulties Questionnaire along with its externalizing, internalizing and prosocial subscales were estimated by multivariate adjusted random intercept mixed models. Results: Overall sleep quality was associated more with internalizing than externalizing behavior; parasomnias associated with both behaviors. Night waking and sleep anxiety associated only with internalizing behavior. High levels of media use were associated with less internalizing behavior. More book reading resulted in less externalizing and internalizing behavior but more prosocial behavior. Finally, book reading and media use do not interact to determine child's behavior. Conclusions: The current work supports a strategy of monitoring sleep quality, reducing media use and promoting book reading in order to avoid behavioral problems in early childhood.

Associations of Speaking-Voice Parameters With Personality and Behavior in School-Aged Children.

OBJECTIVES: Previous studies suggest a link between voice disorders and personality traits. However, nearly nothing is known about the relationship between personality and voice parameters in healthy children. The present study investigated associations between children's personality and the intensity and frequency of their speaking voice. STUDY DESIGN: This is a cross-sectional analysis. METHODS: The study participants included 871 German children aged from 7 to 14 who had not yet experienced voice change in puberty. Within the framework of the LIFE Child study, all participants were asked to perform a speaking-voice task at four different intensity levels (quietest, conversational, presentation, and shouting voice). Associations of fundamental frequency and voice intensity with children's personality and behavioral strengths and difficulties (assessed using parent-reported questionnaires) were estimated using multiple linear regression analyses. RESULTS: With respect to children's personality, the analyses revealed significant positive associations between speaking-voice intensity and extraversion (eg, for the conversational voice, ß = 0.16, P < 0.001) as well as significant negative associations between voice intensity and emotional stability (eg, for the shouting voice, ß = -0.15, P = 0.004) and conscientiousness (for the shouting voice, ß = -0.10, P = 0.033). Regarding behavioral strengths and difficulties, we observed significant positive associations between voice intensity and peer-relationship problems (eg, for the conversational voice, ß = 0.14, P = 0.001) and prosocial behavior (for the conversational voice, ß = 0.11, P = 0.015). In contrast, no significant association was found between speaking fundamental frequency and personality or behavioral difficulties/strengths. CONCLUSIONS: In children, associations exist between a child's speaking-voice intensity and his or her personality, especially extraversion and emotional stability, and behavioral characteristics.

Factors associated with the emotional health of children: high family income as a protective factor.

Anxiety and depressive symptoms have adverse effects on children's development. The present study investigates the associations of socioeconomic factors as well as maternal emotional health with children's emotional health status. The data were collected between 2011 and 2015 in the LIFE Child study, a population-based cohort study in Leipzig, Germany. The emotional health status of 1093 children (2.5-11.9 years old) was investigated using the subscale 'emotional problems' of the Strengths and Difficulties Questionnaire. Associations of maternal emotional health, family status, and socioeconomic status (SES) with the emotional health status of children were estimated via regression analyses. 21.13% of the participating children were assigned to the 'risk' group for emotional problems. The results furthermore revealed that children of mothers reporting more depressive symptoms, children living in single-parent families, and children of families with lower SES scored higher in the emotional problems scale. When considering the different indicators of SES (parental education, occupational status, and monthly net income) separately, only income showed significant associations with children's emotional health status. The prevalence of emotional problems in children in Leipzig, a city in East Germany, appears to be higher than the previously reported German average. Maternal depressive symptoms, single-parent families, lower SES, and especially lower income can be seen as risk factors for children's emotional health.

Phytohormone control of translatable RNA populations in sexual organogenesis of the dioecious plant Mercurialis annua L. (2n = 16).

A cell-free translation system was programmed with total, poly(A), non poly(A) and polysomal RNAs from male and female flowers of this plant with separated sexes. The peptide patterns obtained reflected differences in corresponding translatable RNAs. In total RNA products, three peptides were specific for males, two for females. One of the two male-specific polypeptides of high molecular weight was obtained from poly(A) RNAs and a female-specific one from non poly(A) RNAs. Differences between peptides common to both sexes reflected different concentrations of corresponding messengers. Similar results were obtained with polysomal RNAs. The male-specific RNAs were depending on high endogenous auxin concentrations while the female on active cytokinins. Cytokinin feminization of males induced the female-specific RNAs showing cytokinin action at pretranslational stages. Phytohormone roles are discussed.