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Twenty-two amino acid substitutions at seven conserved amino acid residues in the acetohydroxyacid synthase (AHAS) gene have been identified to date that confer target-site resistance to AHAS-inhibiting herbicides in biotypes of field-evolved resistant weed species. However, the effect of resistance mutations on AHAS functionality and plant growth has been(More)
t's increasingly apparent that the Arctic is a sensitive system that has undergone some dramatic changes over the past few decades, including sea-ice and glacier melt, per-mafrost thaw, increased plant productivity, and northward-moving vegetation. 1 Observations of vegetation change in the Arctic come in several forms. Remotely sensed data from satellite(More)
To understand how the hyaluronan receptor CD44 regulates tumor metastasis, the murine mammary carcinoma TA3/St, which constitutively expresses cell surface CD44, was transfected with cDNAs encoding soluble isoforms of CD44 and the transfectants (TA3sCD44) were compared with parental cells (transfected with expression vector only) for growth in vivo and in(More)
OBJECTIVE This study estimated the incidence of suicide mortality among suicide attempters in Taiwan and assessed the extent of means substitution among subjects with a non-fatal attempt and a subsequent fatal attempt during the study period. METHODS A total of 5,261 suicide attempters registered in a surveillance system of a metropolitan catchment area(More)
Vitamin A (VA) is important for postnatal brain development, and VA deficiency (VAD) can cause learning and spatial memory deficits in rats. Most of the biological functions of VA are mediated by retinoic acid (RA). To investigate the mechanisms underlying VA deficits, mother rats were fed elemental diets to achieve blood VA levels classified as normal,(More)
Chemosensory pheromonal information regulates aggression and reproduction in many species, but how pheromonal signals are transduced to reliably produce behavior is not well understood. Here we demonstrate that the pheromonal signals detected by Gr32a-expressing chemosensory neurons to enhance male aggression are filtered through octopamine (OA,(More)
A model for teaching children skills to strengthen emotional self-regulation is introduced, informed by the developmental concept of scaffolding. Adult modeling/instruction, role-play and in vivo coaching are tailored to children's level of understanding and skill to promote use of skills in real life contexts. Two-hundred twenty-six kindergarten-3rd grade(More)