Deskripsi Kemampuan Pemahaman Konsep Eksponen Berbasis Teori Apos pada Siswa SMA Theresiana Salatiga

Pemahaman konsep matematika adalah kemampuan menangkap makna atau arti suatu ide atau pengertian-pengertian pokok dalam matematika. Penelitian ini bertujuan untuk mendeskripsikan kemampuan pemahaman konsep eksponen berbasis teori APOS pada siswa SMA Theresiana Salatiga. Jenis penelitian ini adalah penelitian deskriptif kualitatif dengan subjek 3 siswa yang diambil dari siswa SMA Theresiana Salatiga dengan kategori berkemampuan tinggi, sedang, dan rendah. Hasil penelitian menunjukkan bahwa subjek berkemampuan tinngi memiliki pemahaman pada tahap aksi, proses, objek, dan skema. Subjek berkemampuan sedang memiliki pemahaman pada tahap aksi, objek, dan skema. Dan subjek berkemampuan rendah memiliki pemahaman pada tahap aksi. Ketiga subjek pada topik eksponen sama-sama memiliki pemahaman pada tahap aksi

Karakter Rusip Dengan Penambahan Kultur Kering : Streptococcus SP.

This research aimed to (1) compare the characterization between rusip with Streptococcus sp. and without it, and (2) evaluate chemical, and microbiological. This research done in some steps which was (1) preparation of liquid starter, (2) making of dry starter, (3) application of Streptococcus sp. dry starter to rusip, the water content, level of acidity (pH), total lactic acid bacterial, total fungi, salt content and Nitrogen Volatile Total (NVT) are being monitory. The data were analysed by descriptively. Rusip that fermented for seven days with adding of Streptococcus sp.dry culture produced better pH, total of lactic acid bacterial, salt content, NVT content and also produce higher water content compare with spontaneously fermented rusip. However rusip fermented with adding of Streptococcus sp. dry starter still had weakness that was produce more fungi than spontaneouslyfermented rusip. Characteristic of rusip that fermented with adding of Streptococcus sp. dry starter were : content 57,87% of water, 5,77 pH, 3,98 x 1011 cfu/g of total lactic acid bacterial, 24,64% salt and 51,43 mgN/100g NV

Pemberdayaan Kelompok Ibu Rumah Tangga di Kelurahan Meteseh dalam Produksi Abon Jamur Tiram dan Produk Kerajinan Kain Perca

Keterlibatan wanita dalam sektor USAha produktif akan menimbulkan Perubahan sosial. Masuknya wanita dalam pasar kerja atau kerja produktif berpengaruh terhadap kegiatan ekonomi rumahtangga, sehingga terjadi Perubahan struktur ekonomi keluarga (Wisadirana, 2004). Keterbatasan peluang kerja, peran dan potensi strategis serta tingginya kemauan untuk meningkatkan pendapatan keluarga yang dimiliki kelompok ibu rumah tangga di RW 15 kelurahan Meteseh menjadi dasar pemikiran bahwa sangat perlu kelompok ibu-ibu rumah tangga ini diberikan bekal ketrampilan yang dapat dikembangkan untuk meningkatkan ekonomi keluarga. Permasalahan kelompok ibu rumah tangga ini antara lain : belum ada pembinaan dalam meningkatkan pemberdayaan ibu rumah tangga, kegiatan kemasyarakatan (dawis, PKK, Posyandu, pengajian,dll) belum diarahkan kepada peningkatan pengetahuan dan ketrampilan ibu rumah tangga dalam hal kontribusinya untuk meningkatkan kesejahteraan keluarga, kegiatan kemasyarakatan yang mengerucut menjadi kegiatan ekonomi produktif belum dilaksanakan, kegiatan kewirausahaan bagi ibu rumah tangga sangat terbatas dan belum dikembangkan dan belum ada bantuan stimulant berupa pelatihan dan alat yang sesuai dengan minat dan ketrampilan sebagai pendoron untuk mengaplikasikan potensi yang dimiliki. Solusi yang dilakukan adalah pelatihan keterampilan USAha bidang boga dan kerajinan tangan dengan metode pendekatan participatory learning dengan menekankan learning by doing, melalui penyuluhan, pembinaan, demonstrasi, dan simulasi penyelenggaraan USAha produksi abon tiram dan kerajinan produk dari percaHasil dan luaran yang telah dicapai pada program Ipteks bagi Masyarakat kelompok ibu rumah tangga ini adalah : a. Peningkatan motivasi dan semangat kelompok mitra dalam meningkatkan ekonomi keluarga. b Penerapan ipteks dalam USAha pengolaan jamur tiram dan kerajinan kain perca menjadi produk yang mempunyai nilai ekonomis. c. Terbentuk kelompok USAha dalam bidang pengolahan jamur tiram dan kerajinan kain perca. Disimpulkan : ketrampilan kelompok ibu rumah tangga dalam mempraktikkan materi yang diajarkan instruktur dalam pengolahan jamur tiram dan produk kerajinan kain perca sangat bagus dan mempunyai nilai jual. Semangat kelompok yang cukup tinggi ditunjukkan dengan peran serta dalam pengadaan bahan-bahan yang dibutuhkan. Antusias peserta pelatihan menjadi modal yang kuat untuk pengembangan kelompok USAha

Analisis Faktor yang Mempengaruhi Permintaan Kredit Pemilikan Rumah (KPR) di Kota Palembang: Kasus Nasabah KPR Bank BTN

The purpose of the study was to investigate the effect of income, house prices and interest rates on the demand for housing loans (KPR) at BTN Bank in Palembang city. This study uses secondary data and primary data. The method used is a quantitative approach by applying a linear regression model. The findings from the results of the study indicate that variations in income variables, house prices and interest rates explain the variable demand for mortgages by 57.6%. In addition, another finding from this study is that the income variable has an insignificant influence on the demand for mortgages, while the variable house prices and interest rates have a positive and significant influence on the demand for mortgage loans in Palembang city

Evaluation of Major Fatty Acids Determination in Palm Oil by Gas Chromatography-Flame Ionization Detection

The fatty acid composition of palm oil is the major factor influencing its physical and chemical properties. The purpose of this research was to evaluate the analytical performance of major fatty acids (palmitic acid, stearic acid, oleic acid, and linoleic acid) analysis in palm oil. Triglycerides of palm oil were derivatized to fatty acid methyl esters (FAMEs) by using boron trifluoride (BF3) in methanol. FAMEs were determined by gas chromatography-flame ionization detection (GC-FID) using DB-23 capillary column as stationary phase. The studied parameters were instrument performance analysis, the efficiency of fatty acid derivatization, stability of derivatized analytes, accuracy, repeatability, intra-lab reproducibility, ruggedness, and method uncertainty. The evaluation results showed the instrument linearity at a working range of 5 to 40 mg/mL marked by coefficient of determination (R2) between 0.991-0.995. Instrument limits of detection (LOD) and instrument limits of quantification (LOQ) for 4 major fatty acids analysis were 26-35 µg/mLand 86-128 µg/mL, respectively. The increase of fatty acid concentration led to the decrease of derivatization efficiency in the fatty acids analysis. The result also showed that derivatized analytes were stable during 24 h storage at freeze temperature. The average recovery values by spiking method with the spiking concentration at 50 and 90 mg/g sample were at 75-94 % for stearic and linoleic acids analysis, however those for palmitic and oleic acids analysis were considered very low (<40 %), due to their low derivatization efficiency. Repeatability and intra-lab reproducibility of 4 major fatty acids analysis were at acceptable ranges, 0.45-1.38 % and 1.15-2.03 %, respectively. Determination by varying the volume of derivatizing agent showed the rugged method. Uncertainty of repeatability (Ur) and uncertainty of reproducibility (Ur) were ranged at 1.84-9.02 mg/g and 1.40-10.65 mg/g, respectively. This method was considerably reliable for the analysis of less abundance fatty acids in palm oil, stearic and linoleic acids

Genicular nerve radiofrequency ablation for pain control following anterior cruciate ligament reconstruction:A case report

Adequate postoperative pain control is an essential factor for the success of rehabilitation programs after anterior cruciate ligament reconstruction (ACLR). The genicular nerve radiofrequency ablation (GNRF) is a recently developed method. This study aimed to evaluate the use of GNRF in patients who underwent ACLR. We performed GNRF guided by ultrasonography for patients who underwent ACLR with aggravated pain. GNRF was performed following ACLR a day after surgery. The pain was evaluated using the Visual Analogue Scale (VAS), and the Euroqol-5 Dimension (EQ-5D) measured the quality of life on the day of one, three, and seven after surgery. Results: In this study, two patients participated. In the postoperative days first, third, and seventh, the mean VAS was decreased after providing the intervention (from 8 to 5, 2, and 1, respectively). The mean EQ5D improved from 0.48 to 0.52, 0.56, 0.66, respectively. We concluded that GNRF is an adequate and safe procedure for managing postoperative pain after ACLR. It may enhance the postoperative rehabilitation program

Formulasi Mi Kering Sagu dengan Substitusi Tepung Kacang Hijau

Mi pati merupakan mi yang dibuat dari pati dan atau kombinasi tepung dari bahan non terigu. Bahan baku non-terigu indigenous Indonesia yang dapat digunakan untuk membuat mi pati adalah sagu. Karakteristik fisik yang sangat mempengaruhi kualitas mi setelah direhidrasi adalah cooking loss, elongasi, kekerasan dan kelengketan. Mi yang dibuat dari bahan dasar pati memiliki cooking loss yang rendah namun kekerasan yang tinggi, sehingga kurang disukai. Tujuan penelitian ini adalah mendapatkan formulasi optimum dari mi berbahan dasar sagu dengan substitusi tepung kacang hijau, sehingga dapat dihasilkan mi yang baik secara fisik dan diterima secara organoleptik. Optimasi formulasi dilakukan menggunakan Mixture Design (DX7) dengan variabel berupa persentase pati sagu (80-100%) dan tepung kacang hijau (0-20%). Substitusi tepung kacang hijau dapat menurunkan kekerasan, kelengketan, dan elongasi mi sagu, namun meningkatkan cooking loss. Produk optimum mi sagu diperoleh dengan substitusi tepung kacang hijau 4,7%. Pada kondisi ini mi sagu memiliki karakteristik kekerasan 1996,03 gf, skor kelengketan -19,2 gf, skor elongasi 214,35% dan skor cooking loss 10,82%. Uji sensori terhadap mi sagu formula optimum menunjukkan bahwa mi sagu yang dibuat secara keseluruhan tidak berbeda nyata dengan mi kering terigu komersial

The quality of education as a primary concern of the sustainable development

The quality of higher education aimed at solving problems of the sustainable development in economy and society is considered in this article. The goal of the sustainable development is to ensure high quality level of life for the present day and future generations. Education plays a significant role in achievement of this goal. The task of education is to develop the comprehensive knowledge in all the elements of the sustainable development, such as: ecology, economy, social sphere, and the ways of their effective interaction. This article contains the results of the research in this area obtained by the scientists of the Management Department of the Ogarev Mordovia State University while preparing for the international conference “Lifelong Education for the Sustainable Development”. The surveys conducted among schoolchildren, students, teachers, employers and the representatives of the state authorities in several regions of the Russian Federation (the Republic of Mordovia, the Novosibirsk, Tambov, Penza, Moscow regions) allowed studying the public opinion on the quality of higher education in Russia and its compliance with the modern and future needs of the economy and society, on the necessity of permanent education, defining the ways of the further development and improvement of higher education in Russia for the benefit of the sustainable development. The study is funded by the Ogarev Mordovia State University.peer-reviewe

Estimating the Abundance and Composition of Soil Seed Bank at Bekol Savanna in Baluran National Park, West Java

The composition of soil-seed bank reflects the condition of vegetation in the past and could be used for predicting the composition of plants that will grow in the future. This study aims to determine the amount and composition of soil-seed bank in Bekol savanna, Baluran National Park. Soil samples were taken using a combination method of quadrat-transect on the invaded and not invaded areas by Acacia nilotica. Soil samples were extracted using wet-sieving method. After the extraction process, the seeds were identified and calculated using a stereo microscope. The result showed that soil-seed bank density was lower at the invaded location (7,566.88 seeds/m3) as compared to the uninvaded location (16,798.3 seeds/m3). The soil-seed bank was found in the invaded site comprising 12 species of broadleaved weeds and 5 species of grasses from 7 families, whereas those in the uninvaded area consisted of 10 species of broadleaved weeds and 7 species of grass from 8 families. This study showed that the invasion of A. nilotica significantly affected the amount and composition of soil-seed bank in various soil depths of Bekol savanna