PENGGUNAAN MODEL MAKE A MATCH DALAM PEMBELAJARAN PKN DI KELAS V SDN 07 SEBANDUT BENGKAYANG

 Abstrak The research problem is whether there is an increase in student learning outcomes in learning Citizenship Education using Make a match model in class V Public Elementary School 07 Sebadut Bengkayang Regency. Research aims to improve student learning outcomes through the use of Make a match model. The method used in this research is descriptive method in the form of Classroom Action Research, is collaborative. Data collection techniques used are the technique of direct observation and measurement by means of data collection is the Student Worksheet. Setting research with subject Teachers / Researchers and students of class V amounted to 21 students.The results of the three cycles obtained are: 1) The ability of teachers to plan the learning model Make a Match experienced an average increase of 0.59 with an average value of 3.23. 2) The ability of teachers to implement learning model Make a Match experienced an average increase of 0.46 with an average value of 3.07. 3) Student learning outcomes Make a Match model increased the increment of 5.83 with an average value of 65.18.Conclusion: the use of Make a match model in Civic Education learning can improve student learning outcomes. Suggestion: Teachers are expected to use Make a match model in improving student learning outcomes in the future. Keywords: Learning outcomes, Model Make a match, Citizenship Education

Geometric morphometric analysis of grain shape and the identification of two-rowed barley (Hordeum vulgare subsp distichum L.) in southern France

Open Access funded by Natural Environment Research Council Under a Creative Commons license We would like to thank Michel Lemoine (CNRS, Muséum), for his invaluable help during the carbonization of the fresh caryopses. We are also most grateful to the society Secobra for providing the fresh caryopses used in this study, to Raphaël Cornette (UMR7205) for welcoming us into the morphometric platform of the National Museum of Paris, to prof. Jean- Frédéric Terral (University Montpellier 2) for his advice and to Elizabeth Kerr (UMR7209) and Nelly Gidaszewski (UMR7205) for language editing. A. Evin acknowledges financial support from the Natural Environment Research Council, UK (grant number NE/F003382/1). Finally, we would like to thank the UMR7209 (CNRS-MNHN), for financial support.Peer reviewedPublisher PD

Pteris melanocaulon Fée is an As hyperaccumulator

Pteris melanocaulon is noted to thrive very well in selected Cu–Au mines in the Philippines such as the Carmen Cu mine in Cebu and the Manila Mining Cu–Au mine in Surigao. Soil and plant samples were collected from field surveys as well as potted experiments. The computed bioaccumulation factor (BF) and translocation factor (TF) values from the analyses of As contents of the soil and the belowground and above ground components of the plant, apparently were comparable to known As hyperaccumulators Pteris vittata and Pityrogramma calomelanos. It is inferred with probability that the factors that influence the bioavailability of As as well as the uptake mechanisms for P. melanocaulon would be similar to the 2 known As hyperaccumulators. Previous works have noted P. melanocaulon as a very good Cu accumulator with very high Cu values in the belowground components and this study further identified it to be an excellent As hyperaccumulator with high As values in the aboveground components

Effect of Drilling Technique in Dental Implants

Step-drilling is a common drilling technique used in many dental implant cases to create a hole to place a tooth implant in the jaw bone. The step-drilling requires multiple pilot drill-bits of increasing diameter prior to a main drill bit to create an implant site. It has been reported that the use of the pilot drill-bits with smaller diameters can reduce forces significantly in drilling during dental implants. However, few of studies have been performed to investigate the effect of step-drilling techniques to the temperature rise in bone. Reducing thermal damage in bone is one of the critical factors which can lead to success of dental implant cases. The objective of this study is to investigate the effects of drilling techniques on temperature and forces in dental implant cases. In this study, different drilling techniques were designed using two different drilling depths and drill bits with two different diameters. Using the combinations of the drilling depths and drill-bit diameters, a custom drilling procedure was created to replicate step-drilling in common dental implant cases. Each drilling test was performed on bovine cortical bone samples with a Computer Numerically Controlled (CNC) machine to ensure precision and repeatability between trials. Force and temperature signals were collected using a dynamometer and an infrared thermal camera, respectively. The results indicate that using a pilot hole with drilling depth equivalent to the main larger hole depth reduced maximum force and torque, while showing higher maximum temperature. This study also observed that reducing pilot hole drilling depth to half of the main hole depth led to larger maximum forces, whereas a lower maximum temperature was recorded. The findings of this study can provide a general understanding of how different drilling techniques can influence thermal effect in dental implant cases

Effect of Drilling Technique in Dental Implants

Step-drilling is a common drilling technique used in many dental implant cases to create a hole to place a tooth implant in the jaw bone. The step-drilling requires multiple pilot drill-bits of increasing diameter prior to a main drill bit to create an implant site. It has been reported that the use of the pilot drill-bits with smaller diameters can reduce forces significantly in drilling during dental implants. However, few of studies have been performed to investigate the effect of step-drilling techniques to the temperature rise in bone. Reducing thermal damage in bone is one of the critical factors which can lead to success of dental implant cases. The objective of this study is to investigate the effects of drilling techniques on temperature and forces in dental implant cases. In this study, different drilling techniques were designed using two different drilling depths and drill bits with two different diameters. Using the combinations of the drilling depths and drill-bit diameters, a custom drilling procedure was created to replicate step-drilling in common dental implant cases. Each drilling test was performed on bovine cortical bone samples with a Computer Numerically Controlled (CNC) machine to ensure precision and repeatability between trials. Force and temperature signals were collected using a dynamometer and an infrared thermal camera, respectively. The results indicate that using a pilot hole with drilling depth equivalent to the main larger hole depth reduced maximum force and torque, while showing higher maximum temperature. This study also observed that reducing pilot hole drilling depth to half of the main hole depth led to larger maximum forces, whereas a lower maximum temperature was recorded. The findings of this study can provide a general understanding of how different drilling techniques can influence thermal effect in dental implant cases