Quality of maternal thinking and mother-child interaction in at-risk contexts

This study investigates how the maternal level of perspectivistic reasoning and the level of socialization goals in the representation of their actions are related to the quality of mother-child behaviors as well as to the expert ratings on maternal practices in at-risk contexts. It also investigated whether there is any direct link between mother and child behaviors and expert ratings. A sample of 75 mothers of children between 8 and 12 years old reported on their level of perspectivistic reasoning and were characterized by the social workers of municipal services as being coercive, neglectful or meeting their child's needs. Interactions during a collaborative task were observed to obtain information on level of socialization goals and mother-child behaviors. Structural equation models showed that mothers' higher levels of perspectivism and higher levels of socialization goals positively predicted the mother's and child's sensitivity and active involvement in the task and negatively predicted avoidance and passivity. Higher levels of perspectivism consistently predicted experts' views on maternal practices. However, only mother's avoidance predicted negatively expert ratings on coercion practice, indicating that expert views were mostly derived from the mothers' perspective on their child. The implications of these results for parental assessment and intervention programs are discussed.     

Ecological Contexts in Adolescent Pregnancy: The Role of Individual,Sociodemographic, Familial and Relational Variables in Understanding Risk of Occurrence and Adjustment Patterns

Adolescent pregnancy appears today as an intricate tapestry where different dimensions interact. In our study we examined the associations between individual, sociodemographic, familial, and relational variables and their impact on the occurrence of pregnancy and adolescents’ adjustment to it. Participants were Portuguese pregnant and non-pregnant adolescents (N = 833). Ecological contexts were characterized, and individual and relational adjustment (depressive symptoms and quality of life; perceived quality of relationship with significant others—parents, romantic partner and friends) were evaluated. Differences between the ecologies of adolescents in both groups were identified. Familial and relational variables were significantly associated with both the risk of pregnancy and more difficulties in adjustment. Implications for preventive intervention are discussed.     

Generalization gradients in a navigation task with rats

In two experiments in a Morris pool, rats were trained to find a hidden platform which was located in a specific position in relation to two objects, B and F, which were presented together, one in front of the other. One object, B, was just above the platform (a beacon for the platform, the critical object) while the second object, F, was above the edge of the pool (the frame of reference). Then the rats received test trials, without the platform, in which B was presented in different positions in relation to F (i.e., in relation to its original position). In the two experiments the test results showed a generalization gradient as a function of the relative distance of the two objects: more time searching in the B segment, where the platform should have been, when B was in the original position (i.e., in front of F), which decreased symmetrically with distance of B from F. The present experiments show for the first time generalization gradients with rats across spatial locations when working with a navigation task.     

Automatic knowledge learning and case adaptation with a hybrid committee approach

When Case Based Reasoning systems are applied to real-world problems, the retrieved solutions usually require adaptations in order to be used on new contexts. Therefore, case adaptation is a desirable capability. However, case adaptation is still a challenge for this research area. In general, the acquisition of knowledge for case adaptation is harder than the acquisition of cases. This paper explores the automatic learning of adaptation knowledge and explores the use of a hybrid committee approach for automatic case adaptation.     

Testing Hypotheses on Risk Factors for Scientific Misconduct via Matched-Control Analysis of Papers Containing Problematic Image Duplications

Science and Engineering Ethics - It is commonly hypothesized that scientists are more likely to engage in data falsification and fabrication when they are subject to pressures to publish, when they...     

Behavioral orientations and peer-contact patterns of relationally aggressive girls

The present study was designed to assess the behavioral orientations and peer-contact patterns of relationally aggressive girls. Based on teachers' assessments of relational aggression, 16 preschool girls were assigned to either a relationally aggressive group or a nonaggressive group and then observed in a free play setting. Several aspects of their interactive behaviors, e.g., cooperative play and social conversation, and noninteractive behaviors, e.g., solitary play and transition, were observed. Analysis indicated the relationally aggressive group spent more time engaged in social conversation and transition and less time in cooperative play than did the nonaggressive group. Further, findings indicated that the relationally aggressive group spent more time with one particular peer than did the nonaggressive group.     

A Generalization of the Łukasiewicz Algebras

We introduce the variety _n ^m , m 1 and n 2, of m-generalized ukasiewicz algebras of order n and characterize its subdirectly irreducible algebras. The variety _n ^m is semisimple, locally finite and has equationally definable principal congruences. Furthermore, the variety _n ^m contains the variety of ukasiewicz algebras of order n.     

Familiar words can serve as a semantic seed for syntactic bootstrapping

Young children can exploit the syntactic context of a novel word to narrow down its probable meaning. But how do they learn which contexts are linked to which semantic features in the first place? We investigate if 3‐ to 4‐year‐old children (n = 60) can learn about a syntactic context from tracking its use with only a few familiar words. After watching a 5‐min training video in which a novel function word (i.e., ‘ko’) replaced either personal pronouns or articles, children were able to infer semantic properties for novel words co‐occurring with the newly learned function word (i.e., objects vs. actions). These findings implicate a mechanism by which a distributional analysis, associated with a small vocabulary of known words, could be sufficient to identify some properties associated with specific syntactic contexts.     

Learning Behavioral Repertoires with Different Consequences Hinders the Interconnection of These Repertoires in Pigeons in the Box Displacement Test

The Psychological Record - The interconnection of repertoires is a behavioral process related to problem solving and creativity. Experiments on this topic have mostly used a single reinforcer type...