Young children with developmental (cognitive) delays experience unusual difficulties in establishing relationships with their peers and developing friendships. A conceptual model of children’s peer-related social competence is presented by identifying information-processing and emotional regulation processes governing the production of social strategies occurring during social tasks. Contempora...

164 four-year-old children (14% Latino American, 30% African American, 56% European American; 57% girls) in 22 Head Start classrooms were followed through third grade. Growth curve models were used to estimate the predictive associations between pre-kindergarten executive function (EF) skills and trajectories of academic skill development (math, literacy, overall academic functioning) and socia...

The ability of a tissue to respond to induction, termed its competence, is often critical in determining both the timing of inductive interactions and the extent of induced tissue. We have examined the lens-forming competence of Xenopus embryonic ectoderm by transplanting it into the presumptive lens region of open neural plate stage embryos. We find that early gastrula ectoderm has little lens...

A developmental cascade model linking competence and symptoms was tested in a study of a normative, urban school sample of 205 children (initially 8 to 12 years old). Internalizing and externalizing symptoms and academic competence were assessed by multiple methods at the study outset and after 7, 10, and 20 years. A series of nested cascade models was tested through structural equation modelin...

A model addressing family influences on the peer-related social competence of young children with mild developmental (cognitive) delays was developed and tested. Constructs representing child peer competence, types of parent action (arranging play for their child and socialization strategies varying in degree of control or power), parent attitudes (beliefs as to the degree their child's peer in...

The purpose of this study was to examine developmental change and the influence of shyness on social problem-solving (SPS). At 24, 36, and 48 months, children (N=570) were observed while interacting with an unfamiliar peer during an SPS task and at 24 months, maternal report of shyness was collected. Results showed that across the full sample, children displayed low but stable levels of withdra...

Background: Successful in vitro maturation (IVM) of oocytes is an important step for production of livestock through assisted reproductive techniques including somatic cell nuclear transfer (SCNT). Obtaining an optimal duration for maturation of oocyte is essential, since over exposure to maturation medium results in oocyte aging, while under exposure leads to production of immature incompetent...

UNLABELLED ParB proteins bind centromere-like DNA sequences called parS sites and are involved in plasmid and chromosome segregation in bacteria. We previously showed that the opportunistic human pathogen Streptococcus pneumoniae contains four parS sequences located close to the origin of replication which are bound by ParB. Using chromatin immunoprecipitation (ChIP), we found here that ParB sp...

Cryopreservation of mature oocytes and embryos has provided numerous benefits in reproductive medicine. Although successful cryopreservation of germinal-vesicle stage (GV) oocytes holds promise for further advances in reproductive biology and clinical embryology fields, reports regarding cryopreservation of immature oocytes are limited. Oocyte survival and maturation rates have improved since v...

Lifelong competence development is a fundamental premise for an information society, as well as major aim and challenge. Facing the variety of learning programs and qualification measures, problems emerge in supporting lifelong learning. Efficient competence development necessitates providing learners with learning opportunities which are appropriate for their current knowledge and for their in...