Penerapan model pembelajaran inkuiri untuk meningkatkan kemampuan berpikir kritis siswa pada pokok bahasan dalil phytagoras di kelas VIII MTs Negeri Sidoarjo

Tujuan pendidikan matematika adalah menumbuhkan penataan nalar atau kemampuan berpikir siswa yang berguna dalam mempelajari ilmu pengetahuan maupun dalam penerapan matematika dalam kehidupan sehari-hari. Salah satu upaya untuk meningkatkan kemampuan berpikir siswa adalah pemilihan pendekatan pembelajaran yang menekankan kepada proses mental siswa secara maksimal. Ada beberapa pendekatan pembelajaran yang dapat diterapkan dalam pembelajaran matematika, salah satunya adalah pendekatan lnkuiri. Berdasarkan analisis kemampuan guru dalam mengelola pembelajaran Inkuiri selama tiga pertemuan yang paling dominan adalah mengamati kegiatan siswa dengan persentase sebesar 40,63%, sehingga dalam pembelajaran dengan menggunakan pendekatan inkuiri siswa dituntut aktif menemukan sendiri pengetahuannya Jadi, aktivitas guru dalam pembelajaran dengan menggunakan pendekatan inkuiri tergolong baik. Hasil analisis aktivitas siswa selama kegiatan pembelajaran Inkuiri tergolong aktif dengan nilai sebesar jumlah persentase aktivitas siswa kedua, ketiga dan keempat pada pertemuan I adalah 65% pada pertemuan II sebesar 68,13% dan pada pertemuan III sebesar 70,625%. Sedangkan persentase aktivitas siswa yang keenam yaitu berprilaku yang tidak relevan dalam KBM wttuk pertemuan I sebesar 3,75%, pertemuan II sebesar 3, 125% dan pertemuan III sebesar 2,25%. Hasil analisis untuk prestasi belajar siswa secara klasikal pada pembelajaran Inkuiri termasuk baik, dengan prosentase ketuntasan belajar klasikal sebesar 82.5%. Dari beberapa penelitian di atas dapat disimpulkan bahwa pembelajaran Inkuiri dalam meningkatkan pembelajaran siswa pada mata pelajaran Matematika di kelas VIII-C MTs Negeri Sidoarjo dapat dikatakan efektif

Modeling projected changes of mangrove biomass in different climatic scenarios in the Sunda Banda Seascapes

Mangroves are critical in the ecological, economic and social development of coastal rural and urban communities. However, they are under threat by climate change and anthropogenic activities. The Sunda Banda Seascape (SBS), Indonesia, is among the world’s richest regions of mangrove biomass and biodiversity. To inform current and future management strategies, it is critical to provide estimates of how mangroves will respond to climate change in this region. Therefore, this paper utilized spatial analysis with model-based climatic indicators (temperature and precipitation) and mangrove distribution maps to estimate a benchmark for the mangrove biomass of the SBS in six scenarios, namely the Last Inter-glacial Period, the current scenario (1950–2000) and all four projected Representative Concentration Pathways in 2070 due to climate change. Despite mangroves gaining more biomass with climate change (the increase in CO2 concentration), this paper highlighted the great proportion of below-ground biomass in mangrove forests. It also showed that the changes in spatial distribution of mangrove biomass became more variable in the context of climate change. As mangroves have been proposed as an essential component of climate change strategies, this study can serve as a baseline for future studies and resource management strategies

Optimalisasi Potensi Desa Wisata Edukasi di Ledug Prigen

Desa Ledug merupakan desa yang memiliki potensi untuk dijadikan sebagai objek wisata yang berpotensi sebagai wisata alam yang menarik, mengingat letak desa yang amat strategis dan memiliki potensi alam yang menarik, seperti memiliki 3 air tejun, taman bunga yang indah, dan beberapa produk lokal desa lainnya. Oleh karena itu kami dari pihak mahasiswa berinisiatif untuk mewujudkan desa tersebut sebagai objek wisata yang menarik yang menawarkan wisata berbasis edukasi terhadap semua kalangan dan anak-anak. Program yang kami lakukan ini berupa pendapingan dengan metode pendekatan ABCD (Asset Based Community Development), pendekatan tersebut berupa kegiatan yang ditujukan untuk pengembangan masyarakat dengan memanfaatkan potensi-potensi yang terdapat pada daerah tersebut. Pendekatan yang kami lakukan ini dimulai dengan pendekatan kepada tokoh-tokoh masyarakat, dan mengajak masyarakat umum untuk ikut berpartisipasi dalam pembangunan wisata pada desa tersebut yang dapat berpengaruh mempengaruhi tingkat ekonomi masyrakat menjadi lebih baik. Kami juga melakukan beberapa langkah pembangunan pada desa tersebut, seperti pembangunan spot foto, gapura, dan lain-lain. Terdapat beberapa kendala yang kami alami dalam projek yang kami lakukan ini, yaitu berupa terbatasnya waktu yang dimiliki masyarakat desa untuk melakukan kegiatan sosial, jauhnya jarak yang ditempuh dari Surabaya ke Pasuruan, dan terbatasnya dana yang dimiliki untuk melakukan pembangunan

MICELLE-MEDIATED EXTRACTION AS A TOOL FOR SEPARATION AND PRECONCENTRATION IN COPPER ANALYSIS

A cloud point extraction method was presented for preconcentration of copper in various samples. After complexation with 4-Amino-2,3-dimethyl-1-phenyl-3-pyrazoline-5-one (ADPP) or N-Benzoyl-N-phenylhydroxylamine (BPA)  in water, analyte ions are quantitatively extracted to the phase rich in Triton X-114 after centrifugation. 2.0 mol L-1 HNO3 solution in methanol was added to the surfactant-rich phase prior to its analysis by flame atomic absorption spectrometry (FAAS). The adopted concentrations for ADPP, Triton X-114, HNO3 and parameters such as bath temperature, centrifuge rate and time were optimized. Detection limits (3SDb/m) of 1.3 and 1.9 ng mL-1 for ADPP and BPA along with enrichment factors of 30 and 38 for ADPP and BPA were achieved. The high efficiency of cloud point extraction to carry out the determination of analyte in complex matrices was demonstrated. The proposed method was applied to the analysis of biological, industrial, natural and wastewater, soil and blood samples.   Keywords: 4-Amino-2,3-dimethyl-1-phenyl-3-pyrazoline-5-one (ADPP), N-Benzoyl-N-phenylhydroxylamine (BPA) ,   Cloud Point Extraction, Triton X-114, Flame Atomic Absorption Spectrometry

Debating the effectiveness of marine protected areas

Increasing the size and number of marine protected areas (MPAs) is widely seen as a way to meet ambitious biodiversity and sustainable development goals. Yet, debate still exists on the effectiveness of MPAs in achieving ecological and societal objectives. Although the literature provides significant evidence of the ecological effects of MPAs within their boundaries, much remains to be learned about the ecological and social effects of MPAs on regional and seascape scales. Key to improving the effectiveness of MPAs, and ensuring that they achieve desired outcomes, will be better monitoring that includes ecological and social data collected inside and outside of MPAs. This can lead to more conclusive evidence about what is working, what is not, and why. Eight authors were asked to write about their experiences with MPA effectiveness. The authors were instructed to clearly define “effectiveness” and discuss the degree to which they felt MPAs had achieved or failed to be effective. Essays were exchanged among authors and each was invited to write a shorter “counterpoint.” The exercise shows that, while experiences are diverse, many authors found common ground regarding the role of MPAs in achieving conservation targets. This exchange of perspectives is intended to promote reflection, analysis, and dialogue as a means for improving MPA design, assessment, and integration with other conservation tools

Pengaruh Keunggulan Kompetitif Dan Kualitas Pelayanan Terhadap Kepuasan Dan Loyalitas Pengunjung Objek Wisata Air “Owabong” Purbalingga

ABSTRACT This study aims to determine and analyze the effects of competitive advantage and service quality to customer satisfaction, and the subsequent impact on the loyalty of Owabong Water Park Purbalingga visitors. This research is a descriptive causal research, using survey method. The population of the research is Owabong Water Park visitors. This research uses a sample of 100 visitors. The sampling is done through convenience sampling technique. Data in this study are collected from questionnaires distributed to the samples, and other secondary data available. The data analysis is done using path analysis. Based on the analysis, the study concludes that: the competitive advantage and service quality have positive and significant effect on customer satisfaction either partially and simultaneously; customer satisfaction has a positive and significant effect on customer loyalty; competitive advantage and service quality do not have a direct effect on customer loyalty; and there are indirect effects of competitive advantage and service quality to customer loyalty through customer satisfaction. Keywords: Customer loyalty, customer satisfaction, competitive advantage, service quality

Local-scale projections of coral reef futures and implications of the Paris Agreement

International audienceIncreasingly frequent severe coral bleaching is among the greatest threats to coral reefs posed by climate change. Global climate models (GCMs) project great spatial variation in the timing of annual severe bleaching (ASB) conditions; a point at which reefs are certain to change and recovery will be limited. However, previous model-resolution projections (~1 × 1°) are too coarse to inform conservation planning. To meet the need for higher-resolution projections, we generated statistically downscaled projections (4-km resolution) for all coral reefs; these projections reveal high local-scale variation in ASB. Timing of ASB varies >10 years in 71 of the 87 countries and territories with >500 km 2 of reef area. Emissions scenario RCP4.5 represents lower emissions mid-century than will eventuate if pledges made following the 2015 Paris Climate Change Conference (COP21) become reality. These pledges do little to provide reefs with more time to adapt and acclimate prior to severe bleaching conditions occurring annually. RCP4.5 adds 11 years to the global average ASB timing when compared to RCP8.5; however, >75% of reefs still experience ASB before 2070 under RCP4.5. Coral reef futures clearly vary greatly among and within countries, indicating the projections warrant consideration in most reef areas during conservation and management planning