SISTIM INFORMASI DAN KEPEMIMPINAN KEPALA SEKOLAH SD NEGERI DI PEKANBARU - RIAU

This descriptive research is intended to make a mapping of the availability and utilization of information systems and leadership of school principals in Public Elementary School in Pekanbaru - Riau. The formulation of problems to be answered are: (1) How is the availability and utilization of information systems in public elementary schools in Pekanbaru - Riau? and (2) How is the leadership of the school principals in the public elementary school in Pekanbaru - Riau? There are 12 districts in Pekanbaru - Riau and each district has a different number of public elementary schools. Through a proportional random sampling technique, 66 school principals were selected as samples. The instrument used was a questionnaire addressed to the principals. The principals are asked to give their response to the questionnaire given and they are free to choose one or more answers for each item according to their situation and condition. The data obtained were then analyzed using descriptive statistical analysis. The results of the data analysis showed that: (1) the information system available at school was rated positively by the principals, whether in terms of availability, management, or perceived benefits; and (2) in carrying out their leadership, their roles and functions as supervisors, managers and educators occupy the highest position.

From DMEK to Corneal Endothelial Cell Therapy: Technical and Biological Aspects

The main treatment available for restoration of the corneal endothelium is keratoplasty and DMEK provides faster visual recovery and better postoperative visual acuity when compared to DSAEK. However, the technical challenges related to this technique and the steep technical learning curve seem to prevent the overcoming of DSAEK in favor of DMEK. Furthermore, the outcome of lamellar keratoplasty techniques is influenced by problems related to corneal grafting tissue availability, management, and quality. On the other hand, improvements in the field of cell engineering have opened the way for the use of stem cells-derived corneal endothelial cells with regenerative intent. In this overview, latest findings in endothelial cell engineering are reported, and perspectives of clinical application of mesenchymal stem cells for corneal endothelial replacement and regeneration are evaluated.