Error climate and alienation from teachers: A longitudinal analysis in primary school.

Background: Dealing with errors in the classroom is a crucial aspect of instructional quality and has multiple consequences for students' own dealing with errors, their learning and their achievement. The available literature on error climate indicates a paucity of research on the effects of perceived error climate on social aspects such as student-teacher relationships.

Aims: The aim of this longitudinal study was to examine the relationship between error climate and alienation from teachers.

Urinary Bladder Patch Made with Decellularized Vein Scaffold Seeded with Adipose-Derived Mesenchymal Stem Cells: Model in Rabbits.

Background: To evaluate tissue regeneration of the urinary bladder after the implantation of a decellularized vein sown with autologous adipose-derived mesenchymal stem cells (ASC) on luminal surfaces.

Methods: New Zealand rabbits ( = 10) were distributed in two groups: Group Bioscaffold alone (G1)-decellularized vena cava (1 cm) was implanted, and Group Bioscaffold plus ACSs (G2)-decellularized vena cava (1 cm) containing ASCs were implanted. ASCs were expanded, characterized, and maintained for one week in culture with a decellularized vein scaffold.