3,800 research outputs found

    MODIFIKASI PEMBELAJARAN DENGAN PERMAINAN TONNIS TERHADAP HASIL BELAJAR PUKULAN FOREHAND TENIS LAPANGAN (Studi Pada Siswa Peserta Ekstrakurikuler Tenis Lapangan SMAN 3 Mojokerto)

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    Abstract Forehand stroke is a matter that feels difficult for student. Many students that unable to perform those movement wehther on game nor when asked by teacher to practice it. One o fthe learning model is learning modification by tonnis game. Tonnis game played with similar way to tennis and suitable to become basic game before play field tennis. The aim of this reserarch was to detect : 1) the effect of field tennis learning modification by tonnis game to the forehand stroke learning result on student’s field tennis extracurricular participant of SMAN 3 Mojokerto. 2) The rate of tonnis modification to the forehand stroke learning result on student’s field tennis extracurricular participant of SMAN 3 Mojokerto. The conclusion of research result are : 1) there is significant effect from field tennis learning modification by tonnis game to the forehand stroke learning result on student’s field tennis extracurricular participant of SMAN 3 Mojokerto. It proved based on t test result namely tcount score 8.995 > ttable 2.045. 2) Learning modification by tonnis game give improvement to the forehand stroke learning result on student’s field tennis extracurricular participant of SMAN 3 Mojokerto as big as 22.65%. Keywords : modification, Tonnis learning result forehand, Field tennis

    Primary Cutaneous B-Cell Lymphomas

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    Primary cutaneous B-cell lymphomas (PCBCL) are a heterogeneous group of mature B-cells neoplasms that present in the skin without evidence of nodal or systemic involvement. The clinical and pathologic features of PCBCL differ significantly from the equivalent nodal lymphomas. Three main subtypes of PCBCL are recognized by the 2016 revised WHO classification. Studies have shown that PCBCLs are characterized by distinct immunophenotypic features, chromosomal aberrations and gene rearrangements which provide further support for their classification as separate entities from their nodal types

    Analyzing the degree of social-economic transformation of disdplaced community using probit model : a case analysis

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    The 1998 Poso conflict caused many fatalities, hundreds of missing people, loss of property, and the decline of social order and economic life. The conflict has changed the social and economic order of the society, and most people uprooted from their hometown into new places. Thus, this study aims to analyze the degree of social and economic transformation in one decade after the conflict by examining the intervention role of the government, private sector and NGOs on the post-conflict socio-economic transformation in some refugee locations as the District of Poso, Central Sulawesi. By involving 98 household heads as respondents, and using Probit model as the analytical tool, the results reveal that a mass population displacement has caused a sense of prolonged trauma among the minorities. Moreover, the results show that the process of social and economic transformation takes place simultaneously. Statistically, there are no significant impact of natural factors and government intervention on the process of social transformation in the new settlement, while the intervention of the private and non-governmental organizations shows a positive and insignificant influence. In terms of economic transformation, the natural factors and government intervention are proved to have no significant effect on the process of economic transformation, while the private sector and non-governmental intervention is capable of providing a positive and insignificant impact on economic transformation. The study implies for decision makers to make better direction in development planning, and funding for displaced people, and to encourage and provide higher support to the private sector and NGOs.peer-reviewe

    The Development of Animation-Based Learning Media Using Construct 2 on Logic Material

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    Tujuan penelitian pengembangan ini adalah menghasilkan produk berupa media pembelajarn berbasis animasi menggunakan construct 2 yang “layak” digunakan sebagai media pembelajaran untuk peserta didik di SMA Negeri 1 Purbolinggo dan menghasilkan produk yang “praktis” digunakan sebagai media pembelajaran untuk peserta didik di SMA Negeri 1 Purbolinggo. Model pengembangan yang digunakan sebagai dasar penelitian ini adalah model 4D yang terdiri dari 4 tahap yaitu Define, Design, Development, Disseminate. Instrument pengumpulan data pada pengembangan ini berupa angket validasi ahli dan angket kepraktisan produk. Hasil pengembangan produk berupa media pembelajaran animasi diperoleh analisis materi 89% yang masuk dalam kategori “sangat layak” dan analisis ahli media 90% yang masuk dalam kategori “sangat layak” untuk digunakan pada saat uji coba. Selanjutnya uji coba kelompok kecil dilakukan oleh 10 peserta didik diperoleh 90% yang masuk dalam kategori “sangat praktis” digunakan pada proses pembelajaran. Berdasarkan kriteria yang telah ditetapkan media pembelajaran berbasis animasi pada materi logika yang dikembangkan memenuhi kriteria layak dan praktis. Kata kunci: Pengembangan, media pembelajaran, berbasis animasi, Construct 2, logika

    Optimisation of Second-Generation Biodiesel Production from Australian Native Stone Fruit Oil Using Response Surface Method

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    © 2018 by the authors. In this study, the production process of second-generation biodiesel from Australian native stone fruit have been optimised using response surface methodology via an alkali catalysed transesterification process. This process optimisation was performed varying three factors, each at three different levels. Methanol: oil molar ratio, catalyst concentration (wt %) and reaction temperature were the input factors in the optimisation process, while biodiesel yield was the key model output. Both 3D surface plots and 2D contour plots were developed using MINITAB 18 to predict optimum biodiesel yield. Gas chromatography (GC) and Fourier transform infrared (FTIR) analysis of the resulting biodiesel was also done for biodiesel characterisation. To predict biodiesel yield a quadratic model was created and it showed an R2 of 0.98 indicating the satisfactory performance of the model. Maximum biodiesel yield of 95.8% was obtained at a methanol: oil molar ratio of 6:1, KOH catalyst concentration of 0.5 wt % and a reaction temperature of 5 ◦C. At these reaction conditions, the predicted biodiesel yield was 95.9%. These results demonstrate reliable prediction of the transesterification process by Response surface methodology (RSM). The results also show that the properties of the synthesised Australian native stone fruit biodiesel satisfactorily meet the ASTM D6751 and EN14214 standards. In addition, the fuel properties of Australian native stone fruit biodiesel were found to be similar to those of conventional diesel fuel. Thus, it can be said that Australian native stone fruit seed oil could be used as a potential second-generation biodiesel source as well as an alternative fuel in diesel engines

    Plant mediated synthesis of silver nanoparticles and their biological applications

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    The green synthesis of nanoparticles using plants and their extracts is considered as a representative approach in material synthesis for environmental benignity. Numerous metal nanoparticles with potential bioactivities have been prepared based on plant extracts. In this paper, we report an eco-friendly technique for the preparation of silver nanoparticles using plant extract of Justicia diffusa Willd. and the evaluation of their antioxidant, antidiabetic, and cytotoxicity activities. UV-visible spectroscopy, transmission electron microscopy, scanning electron microscopy and atomic force microscopy analysis were used to characterize the morphology and size of silver nanoparticles. The stability of silver nanoparticles toward acidity, alkalinity, salinity and temperature showed that they remained stable at room temperature for more than two months. UV–vis spectrum of the aqueous medium containing silver nanoparticles showed an absorption peak at around 420 nm. The scanning electron microscopy analysis of the silver nanoparticles showed that they have a uniform spherical shape with an average size in the range of 40–78 nm. This was confirmed by transmission electron microscopy analysis which showed an average size of about 50 nm. Thus green system showed better capping and stabilizing agent for the fine particles. Further 1-diphenyl-2-picrylhydrazl radical in Justicia diffusa mediated silver nanoparticles showed a maximum activity of 67% at concentration of 200 μg/mL. Hydrogen peroxide scavenging assay in Justicia diffusa mediated silver nanoparticles showed a maximum activity of 89% at concentration of 200 μg/mL. Reducing power of Justicia diffusa silver nanoparticles exhibited a higher activity of 246 μg/mL at concentration of 200 μg/mL. These NPs showed the cytotoxic effects against brine shrimp (Artemia salina) Nauplii with a value of 35% and LD value of 271 μg/mL. The AgNPs synthesized using Justicia diffusa Willd.  extract also show remarkable antidiabetic activities.               KEY WORDS: Justicia diffusa, Nanoparticles, TEM, SEM, AFM Bull. Chem. Soc. Ethiop. 2018, 32(3), 469-479.DOI: https://dx.doi.org/10.4314/bcse.v32i3.

    A Comparative Study Between Alcoholics of Koraga Community, Alcoholics of General Population and Healthy Controls for Antioxidant Markers and Liver Function Parameters

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    Objectives: It is well established that long-term alcohol consumption leads to liver cirrhosis and other related disorders. Sufficient work has been done on biochemical markers of liver damage and antioxidant status of chronic alcoholics in general population. In the current study chronic alcoholics from a community called Koraga are analysed for the same parameters in a view to assess the extent of liver damage as compared to healthy controls and other alcoholics. Methods: Serum and urine samples from Koraga alcoholics (n=28), general alcoholics (n=30) and healthy controls (n=31) were analysed for liver function parameters and antioxidant markers. Liver function parameters were determined by automated analyzer. Markers of antioxidant status were estimated spectrophotometrically. The data was analysed using SPSS version 16.0. Results: There was significant increase in serum AST, serum ALT, serum GST and urine GST in both general and Koraga alcoholics when compared to healthy controls (p<0.0001). Serum ALT, serum GST and urine GST activity was significantly higher in general alcoholics when compared to Koraga alcoholics (p<0.001). Serum and urine total thiol levels were significantly lower in general alcoholics when compared to healthy controls and Koraga alcoholics (p<0.0001). We have observed no difference in total thiols level between healthy controls and Koraga alcoholics, in fact, there was significant increase in urine total thiols level in Koraga alcoholics compared to healthy controls (p<0.001). On Pearson’s correlation serum AST, serum ALT correlated positively with serum and urine GST (p<0.0001) and negatively with serum total thiols (p<0.0001). Serum GST correlated negatively with serum total thiols (p<0.0001). Conclusion: Results of our study possibly indicate that the extent of alcohol induced liver damage in Koraga subjects is comparatively lower than general alcoholics, even though the alcohol consumption is found to be higher in them. There may be some mechanism that is rendering them resistant to alcoholic liver damage which needs to be explored through further studies at molecular level

    Faktor yang Mendorong Pencapaian K4 Kunjungan Ibu Hamil di Puskesmas Anreapi Kabupaten Polewali Mandar

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    Kehamilan merupakan proses alamia yang di alami oleh setiap wanita. Lama kehamilan sampai atrem adalah 280 sampai 300 hari atau 39-40 minggu, sehingga selamamasa tersebut ibu hamil memerlukan pengawasan yang tepat. Janin dalam kandungan berkembang seiring usia kehamilan, maka apabila tidak dilakukan pengawasan bisa menyebabkan masalah, baik dalam kehamilan, persalinan dan nifasnya, bisa juga mengakibatkan kematian ibu dan bayi. Jenis penelitian yang digunakan adalah kualitatif dan subjek penelitiannya adalah informan biasa sebanyak tujuh, informan kunci sebanyak dua orang penentuan sampel dipilih secara purposive sampling yaitu sampel diambil bukan tergantung pada populasi melainkan disesuaikan dengan tujuan penelitian.Hasil penelitian dari 7 responden menunjukkan bahwa kunjungan ibu hamil ke Puskesmas Anreapi, keluarga sangat mendukung jika melakukan pemeriksaan kehamilan namun ada juga ibu hamil yang biasa melakukan pemeriksakan kehamilannya jika ada keluhan-keluhan yang di rasakan oleh ibu hamil tersebut. Disimpulkan bahwa sebagian besar keluarga mendukung untuk melakukan pemeriksaan kehamilan dan di puskesmas Anreapi itu sudah mencapai target kunjungan K4 ibu hami
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