PENINGKATAN MOTIVASI BELAJAR MATEMATIKA SISWA MELALUI PENDEKATAN PETA KONSEP (PTK Pembelajaran Matematika Kelas VI SD 3 AL-ISLAM GEBANG)

Penelitian ini bertujuan untuk menganalisis dan mengkaji peningkatan motivasi belajar matematika siswa melalui pendekatan peta konsep. Subyek penelitian adalah guru matematika kelas VI SD 3 AL-ISLAM GEBANG sebagai subyek pemberi tindakan. Kepala sekolah sebagai subyek yang membantu dalam perencanaan dan pengumpulan data penelitian. Peneliti sebagai subyek yang melakukan perencanaan, pengumpulan data, analisis data dan penarikan kesimpulan. Siswa kelas VI SD 3 AL-Islam Gebang, Surakarta tahun ajaran 2006/2007 yang berjumlah 35 siswa sebagai subyek penelitian yang menerima tindakan. Metode pengumpulan data yang digunakan adalah observasi, catatan lapangan, dokumentasi dan review. Analisis data pada penelitian ini menggunakan analisis interaktif. Data dianalisis sejak tindakan pembelajaran selama tiga putaran. Hasil penelitian menyimpulkan bahwa peningkatan keaktifan siswa pada putaran I sebanyak 12 siswa (34,29%), pada putaran II sebanyak 20 siswa (57,14%), dan pada putaran III meningkat sebanyak 27 siswa (77,14%), kemamdirian siswa pada putaran I sebanyak 11 siswa (31,43%), pada putaran II sebanyak 16 siswa (45,71%), dan pada putaran III meningkat sebanyak 23 siswa (65,71%), serta peningkatan kemampuan siswa pada putaran I sebanyak 13 siswa (37,14%), pada putaran II sebanyak 22 siswa (62,86%) dan pada putaran III meningkat sebanyak 26 siswa (74,29%). Penelitian ini menyimpulkan bahwa melalui pendekatan peta konsep dalam pembelajaran matematika dapat meningkatkan motivasi belajar matematika siswa

Corn Processing with Design of Flaters Machinery and Diversification of Corn Processing with Andaliman Flavor (Zanthoxylum Acanthopodium) in Parsaoran Village, Sibisa, Toba Samosir Regency

The objectives to be achieved in PKM activities; developing corn farmers' businesses in Parsaoran Sibisa Village to become economically independent businesses through processing andaliman flavored corn chips, designing and building corn flattening machines, training on corn chips production, business management training and packaging. The specific target to be achieved through a corn flattening machine is to increase the effectiveness of the abundant corn production into andaliman corn chips, savory, sweet, spicy, able to manage business and packaging. The approach method used is the method of education, production training, business management training, design and assistance. The results of this service activity by providing knowledge, technology and business management, corn farmers are expected to be able to take advantage of their agricultural products which are processed into high-value corn chips products. Corn chips are a food diversification product that can support the development of rural agro-industry and increase the income value of corn farmers whose raw materials are easily available in Parsaoran Sibisa Village, Toba Samosir Regency

ANALISIS PENGEMBANGAN MEDIA DALAM PEMBELAJARAN KIMIA

Media plays an important role in the chemistry learning process. The development of media in chemistry learning can help teachers increase students' knowledge and interest in learning. This study aims to determine the development of media in chemistry learning in terms of the types of media, development methods, and chemical materials. This research uses literature study method. The data analyzed in this study are the results of research from 26 articles on media development in chemistry learning that have been published in national journals. The results showed that in chemistry learning, visual-based media, inquiry-based media, video-based media, application-based media, and interactive media have been developed. Learning media was developed using the Research and Development (R&D) method with Borg and Gall, 3D, 4D, and ADDIE development models. Android-based media is the most popular as a medium for chemistry learning. The ADDIE development model is the most widely used in developing chemistry learning media. The development of learning media accommodates 30.8% of class X chemistry, 46.2% of class XI chemistry, and 23.1% of class XI chemistry.

AKTIVITAS ANTIMIKROBA EKSTRAK ETIL ASETAT BUAH DAN DAUN BELIMBING WULUH (Averrhoa bilimbi Linn) TERHADAP MIKROBA Salmonella tyhipimurium dan Aspergillus flavus

Penelitian ini bertujuan untuk mengetahui aktivitas senyawa antimikroba ekstrak etil asetat buah dan daun belimbing wuluh (Averrhoa bilimbi Linn)  terhadap mikroba Salmonella thypimurium dan Aspergillus flavus. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan konsentrasi ekstrak 0%, 2%, 4%, 6%, 8%, dan 10%  dengan 3 x ulangan. Pengujian aktivitas antimikroba dilakukan dengan metode difusi cakram. Hasil penelitian menunjukkan bahwa penggunaan ekstrak etil asetat buah dan daun belimbing wuluh menunjukkan aktivitas antimikroba terhadap Salmonella thypimurium, tetapi tidak dapat menunjukkan aktivitas antimikroba terhadap Aspergillus flavus. Konsentrasi 6% pada ekstrak etil asetat buah dan daun belimbing wuluh menunjukkan aktivitas antimikroba terhadap Salmonella thypimurium dengan diameter zona hambat 2,83 mm pada buah dan 2 mm pada daun

Extract of Yellow Root (Arcangelisia Flava (L.) Merr.) from several regions in Kalimantan: alkaloid content and cytotoxicity towards WiDr colorectal cancer cells

Yellow root (Arcangelisia flava (L.) Merr.) has been scientifically known to have potential as an antimalarial, antibacterial, antioxidant, and anticancer. The purpose of this study was to determine the profile of alkaloid content and cytotoxicity of yellow root extract from several regions in Kalimantan. The alkaloid content was tested using the thin layer chromatography (TLC) method with dragendorf reagent. Cytotoxic in vitro test was conducted against WiDr colorectal cancer cells using the 3-(4,5-dimethylthiazol-2-il)-2,5-diphenyltetrazolium bromide (MTT) assay. Yellow roots were collected from Samarinda city, Banjarmasin city, Barito Timur regency, Malinau district, and Balikpapan City. The MTT inhibitory concentration 50 (IC50) of yellow root extracts were 573.308 μg/mL; 582.857 μg/mL; 296.326 μg/mL; 114.119 μg/mL; and 320.162 μg/mL respectively. Results of the compound identification indicated that alkaloid was found in A. flava from all regions. Alkaloids of A. flava extract should be investigated further in order to find possible active agent that could decrease the viability of WiDr colorectal cancer cells

Formulation and characterization on self nanoemulsifying drug delivery system of Eleutherine palmifolia extract employing short, medium, and long chain triglyceride

Eleutherine palmifolia (E. palmifolia) is a common plant used as an anticancer drug in Kalimantan, Indonesia. The active compound present in it is naphthoquinone, which has low water solubility and needs to be formulated into SNEDDS preparations to improve its dissolution and bioavailability in the body. The dispersion method is used in the preparation of Self-Nanoemulsifying Drug Delivery Systems (SNEDDS) and PEG 400 co-surfactants. Furthermore, this study aims to ascertain the effects of oil on the SNEDDS preparations. The results showed that the effect of the preparations on olive oil, VCO, and oleic acid in the organoleptic test produced dark red, clear, and non functional emulsion. The average particle sizes obtained in the AGF media were 61.10, 774.33, and 211.70 nm; in AIF media it amounted to 211.70, 123.65, and 830.22 nm. The pH value for each formula was 6.8, while the average emulsification time for the AGF media was 24.10, 22.53, and 25.75 seconds, and, lastly, for the AIF media, they were 20.96, 19.62, and 23.74 second

Peningkatan pengetahuan terhadap sosialisasi dagusibu pada siswa SMA An Namiroh kota Pekanbaru

AbstrakIkatan Apoteker Indonesia melakukan edukasi baru yang disebut DAGUSIBU, yang merupakan singkatan dari "Dapatkan, Gunakan, Simpan, dan Buang". Dengan mengikuti langkah-langkah yang diuraikan dalam program DAGUSIBU yang dimulai dengan perolehan obat-obatan dan diakhiri dengan pembuangannya. Salah satu lapisan masyarakat yang sejak dini harus mengetahui tentang penggunaan obat adalah Siswa SMA. Untuk memastikan siswa tidak melakukan kesalahan dalam menggunakan obat, kegiatan sosialisasi DAGUSIBU dilaksanakan karena siswa masih belum memiliki cukup informasi tentang cara menggunakan obat yang benar.  Siswa SMA An Namiroh Kota Pekanbaru mengikuti sosialisasi DAGUSIBU dengan menggunakan kuesioner sebelum dan sesudah tes untuk mengukur pengetahuan mereka. Sebanyak 50 siswa yang mengikuti sosialisasi menunjukkan terjadinya peningkatan pengetahuan yaitu dari 75% pada pretest menjadi 93,4% pada posttest. Hasil menunjukkan bahwa pemahaman siswa terhadap DAGUSIBU dapat meningkat sebesar 18,4% ketika sosialisasi ini diadakan. Kata kunci: dagusibu; pengetahuan; obat. AbstractThe Indonesian Pharmacists Association is conducting a new education program called DAGUSIBU, which stands for “Get, Use, Store, and Dispose”. By following the steps outlined in the DAGUSIBU program that starts with the acquisition of medicines and ends with their disposal. One of the layers of society that should know about the use of medicines from an early age is high school students. To ensure that students do not make mistakes in using medicines, DAGUSIBU socialization activities are carried out because students still do not have enough information about how to use medicines correctly.  Students of An Namiroh High School in Pekanbaru City participated in the DAGUSIBU socialization using pre- and post-test questionnaires to measure their knowledge. A total of 50 students who participated in the socialization showed an increase in knowledge from 75% in the pretest to 93.4% in the posttest. The results show that students' understanding of DAGUSIBU can increase by 18.4% when this socialization is held. Keywords: dagusibu; knowledge, medicine

Implementing a new rubber plant functional type in the Community Land Model (CLM5) improves accuracy of carbon and water flux estimation

Rubber plantations are an economically viable land-use type that occupies large swathes of land in Southeast Asia that have undergone conversion from native forest to intensive plantation forestry. Such land-use change has a strong impact on carbon, energy, and water fluxes in ecosystems, and uncertainties exist in the modeling of future land-use change impacts on these fluxes due to the scarcity of measured data and poor representation of key biogeochemical processes. In this current modeling effort, we utilized the Community Land Model Version 5 (CLM5) to simulate a rubber plant functional type (PFT) by comparing the baseline parameter values of tropical evergreen PFT and tropical deciduous PFT with a newly developed rubber PFT (focused on the parameterization and modification of phenology and allocation processes) based on site-level observations of a rubber clone in Indonesia. We found that the baseline tropical evergreen and baseline tropical deciduous functions and parameterizations in CLM5 poorly simulate the leaf area index, carbon dynamics, and water fluxes of rubber plantations. The newly developed rubber PFT and parametrizations (CLM-rubber) showed that daylength could be used as a universal trigger for defoliation and refoliation of rubber plantations. CLM-rubber was able to predict seasonal patterns of latex yield reasonably well, despite highly variable tapping periods across Southeast Asia. Further, model comparisons indicated that CLM-rubber can simulate carbon and energy fluxes similar to the existing rubber model simulations available in the literature. Our modeling results indicate that CLM-rubber can be applied in Southeast Asia to examine variations in carbon and water fluxes for rubber plantations and assess how rubber-related land-use changes in the tropics feedback to climate through carbon and water cycling

Pelatihan Inovasi Produk Pangan Abon Pepaya Muda di Dusun Pamagersari Desa Tanjungsari Sumedang

Papaya is a familiar fruit in Indonesia. During this time, papaya fruit is consumed by direct eating and sold at low prices. Young papaya can be processed into a form of creative food products such as abon. The manufacturing process includes preparation of material tools, stripping, steaming for 40 minutes, thin slicing, addition of complementary spices, drying, frying, and serving. The implementation of PKM activities included the dissemination of material and the practice of making abon papaya. Based on the results of the activity, it was obtained information that the participants in the activity didn’t know much about the nutrients contained in papaya fruit, even the participants had never known that papaya fruit could be processed into shredded fruit. The community service activities on the topic of making shredded papaya fruit can increase awareness, knowledge, skills, and also the motivation of the business of Pamagersari Hamlet Community in Tanjungsari Village, Sumedang