Project Based Learning Untuk Meningkatkan Berpikir Kreatifsiswa SD Pada Materi Makanan Dan Kesehatan

Kenyataan menunjukkan pembelajaran IPA masih berfokus pada buku teks dan jarang menggunakan model pembelajaran yang bervariatif sehingga kreativitas dan penguasaan konsep siswa menjadi terbatas. Tujuan penelitian penerapan model PBL untuk meningkatkan penguasaan konsep peserta didik. Metode yang digunakan dalam penelitian ini yaitu metode kuasi eksperimen. Penelitian ini dilakukan di SD Swasta Kartika Siliwangi XIX-3 Kabupaten Garut, sampel dalam penelitian ini adalah siswa kelas V yang berjumlah 66 siswa yang terdiri dari kelas eksperimen dan kelas kontrol berjumlah 33 siswa. Analisis penelitian menggunakan N-Gain dan pengujian hipotesis rumus t-test dengan menggunanakan software SPSS 17. Hasil penelitian menunjukkan bahwa pembelajaran berbasis proyek dapat meningkatkan kreativitas siswa lebih tinggi secara signifikan dibandingkan dengan kelas ekspositori dengan perbandingan di kelas eksperimen N-Gain 0,472 kategori sedang dan kelas kontrol N-Gain 0,223 kategori rendah.Hasil penelitian yang dilakukan menunjukkan hasil uji hipotesis dengan menggunakan t-test hasinya dengan nilai sig 0.009< α yaitu 0,025 artinya ditolak maka terdapat perbedaan peningkatan kemampuan berpikir kreatif antara kelas kontrol dengan kelas eksperimen

Correlations between psychometric schizotypy, scan path length, fixations on the eyes and face recognition.

Psychometric schizotypy in the general population correlates negatively with face recognition accuracy, potentially due to deficits in inhibition, social withdrawal, or eye-movement abnormalities. We report an eye-tracking face recognition study in which participants were required to match one of two faces (target and distractor) to a cue face presented immediately before. All faces could be presented with or without paraphernalia (e.g., hats, glasses, facial hair). Results showed that paraphernalia distracted participants, and that the most distracting condition was when the cue and the distractor face had paraphernalia but the target face did not, while there was no correlation between distractibility and participants' scores on the Schizotypal Personality Questionnaire (SPQ). Schizotypy was negatively correlated with proportion of time fixating on the eyes and positively correlated with not fixating on a feature. It was negatively correlated with scan path length and this variable correlated with face recognition accuracy. These results are interpreted as schizotypal traits being associated with a restricted scan path leading to face recognition deficits

Where to find 1.5 million yr old ice for the IPICS “Oldest-Ice” ice core

The recovery of a 1.5 million yr long ice core from Antarctica represents a keystone of our understanding of Quaternary climate, the progression of glaciation over this time period and the role of greenhouse gas cycles in this progression. Here we tackle the question of where such ice may still be found in the Antarctic ice sheet. We can show that such old ice is most likely to exist in the plateau area of the East Antarctic ice sheet (EAIS) without stratigraphic disturbance and should be able to be recovered after careful pre-site selection studies. Based on a simple ice and heat flow model and glaciological observations, we conclude that positions in the vicinity of major domes and saddle position on the East Antarctic Plateau will most likely have such old ice in store and represent the best study areas for dedicated reconnaissance studies in the near future. In contrast to previous ice core drill site selections, however, we strongly suggest significantly reduced ice thickness to avoid bottom melting. For example for the geothermal heat flux and accumulation conditions at Dome C, an ice thickness lower than but close to about 2500 m would be required to find 1.5 Myr old ice (i.e., more than 700 m less than at the current EPICA Dome C drill site). Within this constraint, the resolution of an Oldest-Ice record and the distance of such old ice to the bedrock should be maximized to avoid ice flow disturbances, for example, by finding locations with minimum geothermal heat flux. As the geothermal heat flux is largely unknown for the EAIS, this parameter has to be carefully determined beforehand. In addition, detailed bedrock topography and ice flow history has to be reconstructed for candidates of an Oldest-Ice ice coring site. Finally, we argue strongly for rapid access drilling before any full, deep ice coring activity commences to bring datable samples to the surface and to allow an age check of the oldest ice

Where to find 1.5 million yr old ice for the IPICS "Oldest-Ice" ice core

The recovery of a 1.5 million yr long ice core from Antarctica represents a keystone of our understanding of Quaternary climate, the progression of glaciation over this time period and the role of greenhouse gas cycles in this progression. Here we tackle the question of where such ice may still be found in the Antarctic ice sheet. We can show that such old ice is most likely to exist in the plateau area of the East Antarctic ice sheet (EAIS) without stratigraphic disturbance and should be able to be recovered after careful pre-site selection studies. Based on a simple ice and heat flow model and glaciological observations, we conclude that positions in the vicinity of major domes and saddle position on the East Antarctic Plateau will most likely have such old ice in store and represent the best study areas for dedicated reconnaissance studies in the near future. In contrast to previous ice core drill site selections, however, we strongly suggest significantly reduced ice thickness to avoid bottom melting. For example for the geothermal heat flux and accumulation conditions at Dome C, an ice thickness lower than but close to about 2500 m would be required to find 1.5 Myr old ice (i.e., more than 700 m less than at the current EPICA Dome C drill site). Within this constraint, the resolution of an Oldest-Ice record and the distance of such old ice to the bedrock should be maximized to avoid ice flow disturbances, for example, by finding locations with minimum geothermal heat flux. As the geothermal heat flux is largely unknown for the EAIS, this parameter has to be carefully determined beforehand. In addition, detailed bedrock topography and ice flow history has to be reconstructed for candidates of an Oldest-Ice ice coring site. Finally, we argue strongly for rapid access drilling before any full, deep ice coring activity commences to bring datable samples to the surface and to allow an age check of the oldest ice

An Open Model-Based Interface Development System: The Teallach Approach

. The goal of the Teallach project is to provide facilities for the systematic development of interfaces to object databases in a manner which is independent of both a specific underlying database and operating system. Teallach&apos;s open architecture also allows the creation of interfaces to nondatabase applications in a platform-independent manner. To this end Teallach adopts model-based techniques in the process of interface construction, exploits the cross-platform capabilities of Java, and utilises the Java Beans API to allow third-party interface components to be exploited. Through the use of a simple case study this paper introduces the Teallach approach to interface development, providing an overview of the system, its motivations, and underlying technology. 1 Introduction 1.1 Motivation Recent research and development work in database management systems has emphasised the extension of conventional database systems with enhanced data modelling features or languages [9]..