Penerapan Model Pembelajaran Kooperatif Tipe Numbered Head Together (Nht) Untuk Meningkatkan Hasil Belajar IPS Siswa Kelas III Sdn 033 Sintong

Background of this research by the low results of social studies class III Sintong SDN 033, with an average grade 65.28. While the value of minimum completeness criteria (KKM) IPA is 70. Of the 18 students who completed only 6 people, while 12 others were incomplete. This study aims to improve learning outcomes IPS Class III students of SDN 033 Sintong. This research is the Classroom Action Research (CAR) conducted by two cycles and twice daily test (replications end of the cycle) to implement cooperative learning model NHT. The subjects were students of class III Elementary School Sintong 033, with the number of students as many as 18 people. Data collection instruments used were observation sheet activities of teacher and student activity and learning about the test results. Based on the analysis of research data after learning corrective action on the first cycle increased the average value of students increased to 69.44. In the second cycle increased again with the average value becomes 73.89. Activities teachers in the learning process also increased from 53.33% increase to 83.33% at the end of the cycle two. The increased activity of teachers also have an impact on student activity from data analysis activities of students in the first cycle the first meeting of 62.50% increased in the second meeting of the two cycles to 83.33%. Thus the results of this study indicate that the hypothesis is proven

Water on hexagonal boron nitride from diffusion Monte Carlo

Despite a recent flurry of experimental and simulation studies, an accurate estimate of the interaction strength of water molecules with hexagonal boron nitride is lacking. Here we report quantum Monte Carlo results for the adsorption of a water monomer on a periodic hexagonal boron nitride sheet, which yield a water monomer interaction energy of -84 +/- 5 meV. We use the results to evaluate the performance of several widely used density functional theory (DFT) exchange correlation functionals, and find that they all deviate substantially. Differences in interaction energies between different adsorption sites are however better reproduced by DFT

Exploring water adsorption on isoelectronically doped graphene using alchemical derivatives

The design and production of novel 2-dimensional materials has seen great progress in the last decade, prompting further exploration of the chemistry of such materials. Doping and hydrogenating graphene is an experimentally realised method of changing its surface chemistry, but there is still a great deal to be understood on how doping impacts on the adsorption of molecules. Developing this understanding is key to unlocking the potential applications of these materials. High throughput screening methods can provide particularly effective ways to explore vast chemical compositions of materials. Here, alchemical derivatives are used as a method to screen the dissociative adsorption energy of water molecules on various BN doped topologies of hydrogenated graphene. The predictions from alchemical derivatives are assessed by comparison to density functional theory. This screening method is found to predict dissociative adsorption energies that span a range of more than 2 eV, with a mean absolute error $<0.1$ eV. In addition, we show that the quality of such predictions can be readily assessed by examination of the Kohn-Sham highest occupied molecular orbital in the initial states. In this way, the root mean square error in the dissociative adsorption energies of water is reduced by almost an order of magnitude (down to $\sim0.02$ eV) after filtering out poor predictions. The findings point the way towards a reliable use of first order alchemical derivatives for efficient screening procedures

Seleksi Induk Kambing Peranakan Etawah Berdasarkan Nilai Most Probable Producing Ability Bobot Sapih di Kelompok Tani Margarini

A survey to determined weaning weight, repeatability, and MPPA using 60 Ettawah Crossbreeddoe were held on Kelompok Tani Margarini, Sungai Langka Village, Gedong Tatanan SubDistrict, Pesawaran Regency. Data were taken from first and second offspring record onDecember 23rd, 2012, to January 17th, 2013.The corrected weaning weight, repeatibility, and MPPA resulted, i.e: 21,58 ± 1,03 kg; 0,31; and21,58 ± 0,49 kg, respectively. The best 5 MPPA were showed by doe number P1 (22,41 kg); G1(22,34 kg); B2 (33,232 kg); P2 (22,27 kg); and F1 (22,25 kg). The result also showed that 50% ofdoe have higher MPPA than that of the average

SELEKSI INDUK KAMBING PERANAKAN ETAWAH BERDASARKAN NILAI MOST PROBABLE PRODUCING ABILITY BOBOT SAPIH DI KELOMPOK TANI MARGARINI

A survey to determined weaning weight, repeatability, and MPPA using 60 Ettawah Crossbreeddoe were held on Kelompok Tani Margarini, Sungai Langka Village, Gedong Tatanan SubDistrict, Pesawaran Regency. Data were taken from first and second offspring record onDecember 23rd, 2012, to January 17th, 2013.The corrected weaning weight, repeatibility, and MPPA resulted, i.e: 21,58 ± 1,03 kg; 0,31; and21,58 ± 0,49 kg, respectively. The best 5 MPPA were showed by doe number P1 (22,41 kg); G1(22,34 kg); B2 (33,232 kg); P2 (22,27 kg); and F1 (22,25 kg). The result also showed that 50% ofdoe have higher MPPA than that of the average

Mapping of raw materials and habitats in the Danish sector of the North Sea

In the summer of 2010, the Geological Survey of Denmark and Greenland (GEUS) mapped the potential raw materials and substrate types, over large parts of the Danish economic sector of the North Sea, in cooperation with Orbicon A/S. The mapping was carried out for the Danish Nature Agency; it is part of the general mapping of raw material resources within the territories of the Danish state and forms part of the input for the implementation of the European Union’s Marine Strategy Framework Directive. The purpose was (1) to provide an overview of the distribution, volume and composition of available raw materials and (2) to identify, describe and map the distribution of the dominant marine bottom types

The Effect of Open Tourism Space on Regional Development Through Supply Chain Management in Panatapan Danau Toba Area Simalungun, Indonesia

This study aims to analyze the influence of open space tourism on regional development, both through visitor satisfaction, image or destination image, and visitor interest and loyalty (intention and loyalty). This research was conducted in several Panatapan spots as open-air tourist spaces in Simalungun Regency, with a total of 313 respondents. The data sources used are primary and secondary data obtained through questionnaires and documentation. The data analysis used in this study uses Structural Equation Modeling (SEM) with SmartPLS 3.0 tools. The results of the study show the importance of developing open space in an effort to build a tourism image, tourist satisfaction, visitor interest and loyalty, in supporting regional development in Simalungun District

Tuning dissociation using isoelectronically doped graphene and hexagonal boron nitride: water and other small molecules

Novel uses for 2-dimensional materials like graphene and hexagonal boron nitride (h-BN) are being frequently discovered especially for membrane and catalysis applications. Still however, a great deal remains to be understood about the interaction of environmentally and industrially elevant molecules such as water with these materials. Taking inspiration from advances in hybridising graphene and h-BN, we explore using density functional theory, the dissociation of water, hydrogen, methane, and methanol on graphene, h-BN, and their isoelectronic doped counterparts: BN doped graphene and C doped h-BN. We find that doped surfaces are considerably more reactive than their pristine counterparts and by comparing the reactivity of several small molecules we develop a general framework for dissociative adsorption. From this a particularly attractive consequence of isoelectronic doping emerges: substrates can be doped to enhance their reactivity specifically towards either polar or non-polar adsorbates. As such, these substrates are potentially viable candidates for selective catalysts and membranes, with the implication that a range of tuneable materials can be designed