726 research outputs found

    TINGKAT MOTIVASI SISWA YANG MENGIKUTI EKSTRAKURIKULER PENCAK SILAT DI SMA NEGERI 1 PATIANROWO

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    Abstrak Selama masa pandemi Covid-19 kegiatan ekstrakurikuler pencak silat tidak dapat dilaksanakan sebagaimana mestinya yang sangat berpengaruh terhadap tingkat motivasi siswa. Tujuan penelitian ini adalah untuk mengetahui seberapa besar tingkat motivasi siswa dalam mengikuti ekstrakurikuler pencak silat di SMA Negeri 1 Patianrowo pada saat masa pandemi Covid-19. Penelitian ini termasuk jenis penelitian deskriptif kuantitatif yang menggunakan metode survei. Aturan penilaian yaitu menggunakan skala likert. Pengumpulan data dilakukan secara online dengan membagikan kuesioner menggunakan google form yang disebar lewat whatsapp group. Sampel yang digunakan adalah seluruh siswa yang mengikuti ekstrakurikuler pencak silat. Pemilihan sampel menggunakan teknik sampling jenuh dengan jumlah sampel 25 siswa. Angket yang digunakan dalam artikel ini diadopsi dari penelitian terdahulu yang sudah diuji validitas dan reliabilitasnya. Kuesioner ini terdiri dari 2 sub motivasi yaitu motivasi intrinsik dan motivasi ekstrinsik. Teknik analisis data menggunakan presentase dengan di bantu aplikasi SPSS version 25. Hasil dari penelitian menunjukkan bahwa motivasi intrinsik dalam kategori ”Baik” dengan nilai sebesar 79,73%, sedangkan motivasi ekstrinsik dalam kategori “Cukup” dengan nilai sebesar 69,81%, dan nilai rata-rata dalam kategori “Cukup” dengan nilai sebesar 74,77%. Sehingga dapat disimpulkan bahwa tingkat motivasi siswa yang mengikuti ekstrakurikuler pencak silat di SMA Negeri 1 Patianrowo selama masa pandemi Covid-19 dapat dikategorikan “Cukup”. Kata Kunci: motivasi; ekstrakurikuler; pencak silat. Abstract During Covid-19 pandemic, Pencak Silat extracurricular activities could not be carried out properly which affected the level of student motivation. The purpose of this study was to determine level of motivation students in taking Pencak Silat extracurricular at Senior High School 1 Patianrowo during Covid -19 pandemic. This research is a descriptive quantitative using the survey method. The scoring rules use a Likert scale. The data was collected online by distributing questionnaires using the google form which were distributed via whatsapp group. The sample used is students who take Pencak Silat extracurricular. The sample selection used a saturated sampling technique with sample of 25 students. The questionnaire used in this article was adopted from previous research that had been tested for validity and reliability. This questionnaire consists of 2 sub motivations, namely intrinsic motivation and extrinsic motivation. The data analysis technique used a percentage with the help of the SPSS version 25 application. The results of the study showed that intrinsic motivation was "Good" category with a value of 79.73%, while extrinsic motivation was "Enough" category with a value of 69.81%, and the average value in "Enough" category with a value of 74.77%. So it can be concluded that the level of motivation of students who take Pencak Silat extracurricular at Senior High School 1 Patianrowo during Covid-19 pandemic can be categorized as "Enough". Keywords: motivation; extracurricular; pencak sila

    Analaysis of the Effect of Relative Humidity in the Eggs Incubator

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    This study aimed to verify the effect of relative humidity during incubation ofduck eggs in the incubator on the rate of decline in egg weight, hatching day old duck weight, length and hatching eggs energy difference duck. Duck eggs taken from the poultry business in Meunasah Krueng, water fence, Lambaro, Aceh Besar. Then each egg was placed in an incubator unit in the three experimental groups, namely low humidity (57/58% RH), intermediate humidity (67/68% RH) and high humidity (71/72% RH). Incubation process done manually with temperature 38 oC incubator. Eggs were coded X and O adjacent to facilitate marking a reversal in current twice a day. Primary data retrieval from the first day until the fifteenth day by weighing the eggs and using electronic scales. Changes in egg weight reduction on the fifteenth day following (10.666%), (3.853%) and (2.859%) for the treatment of low humidity, intermediate andhigh, then the day of hatching eggs weigh hatching day old duck also showed that the weight is also affected by incubation and humidity differences by ANOVA analysis it can be concluded that the changes in egg weight reduction greatly influence the hatching duck weight difference and the difference so long incubation energy hatching day old duckling have more energy at low humidity (57/58% RH)

    Remediasi Kesalahan Siswa Menyelesaikan Soal Gas Ideal melalui Metode Learning Together di SMA

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    This research aims to remediate students\u27 errors in solving ideal gas problems using Learning Together method assisted by Student Worksheet among students in Junior High School 1 Sekayam. Pre-experimental desing was choosen as the method in this research, using intact group method, 28 students from class XI IPA 2 academic year 2013/2014 was chosen to participate in the one group pretest-posttest design. McNemar and Chi Quadrat test showed that there was a significant decline in the number of students who experience mathematical errors (36,42%), physics errors (31,42%) and conception errors (21,42%). It is sugested for further study to conduct an alternative remediation activity in order to improve these results

    Interaksi Sosial Pekerja Anak Terhadap Penggunaan Zat Adiktif

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    Pekerja anak berisiko untuk menghadapi lingkungan kerja yang dapat memengaruhi perilaku mereka dalam interaksi sosial.Salah satunya adalah penggunaan zat adiktif. Penelitian ini bertujuan mengetahui gambaran interaksi sosial pekerja anak terhadap penggunaan zat adiktif di Pelabuhan Soekarno Hatta Makassar. Jenis penelitian kualitatif dengan rancangan fenomenologi. Informan penelitian adalah pekerja anak dan dewasa. Penentuan informan menggunakan metode purposive sampling diperoleh informan sebelas orang. Keabsahan data dilakukan dengan triangulasi sumber dan teknik. Analisis data menggunakan content analysis yang disajikan secara naratif. Hasil penelitian menunjukkan semua informan menggunakan zat adiktif dengan jenis dan jumlah yang berbeda,yakni rokok, alkohol, zat inhalan (lem Fox), dan Somadril. Ada kerjasama yang dilakukan informan dalam penggunaan zat adiktif, yakni mengajak dan mengajari. Namun, perbedaan jenis dan jumlah yang digunakan mengharuskan informan untuk menyesuaikan diri dengan cara menghindari teman. Selain itu, informan juga melakukan USAha agar diakui dalam penggunaan zat adiktif yang kadang menimbulkan respon negatif dan konflik sesama pekerja anak. Kesimpulan penelitian adalah pekerja anak melakukan interaksi sosial yang beragam terkait penggunaan zat adiktif

    Penentuan Anggaran Bos Berdasarkan Jumlah Siswa Terhadap Pelayanan Pembelajaran Yang Berkeadilan Di Sekolah Dasar

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    Penentuan Besaran Anggaran BOS terhadap Pelayanan Pembelajaran yang Berkeadilan pada Sekolah Dasar. Penelitian ini bertujuan untuk mengetahui keefektifan pemberian Bantuan Operasional Sekolah (BOS) pada tingkat sekolah dasar terhadap pelayanan proses pembelajaran yang berkeadilan. Penelitian ini menggunakan metode deskriptif analisis, yaitu menganalisis dampak kebijakan pemberian dana Bantuan Operasional Sekolah terhadap pelayanan pembelajaran pada tingkat sekolah da­sar. Adapun populasi pada penelitian ini adalah sekolah dasar di Kabupaten Garut, dengan teknik pengambilan sampel menggunakan random sampling dengan sistem cluster wilayah kecamatan.Sekolah yang menjadi sampel sebanyak 30% dari jumlah sekolah dari wilayah yang dijadikan sampel tersbut. Pengumpulan data dilakukan dengan angket dan wawancara terhadap kepala sekolah. Hasil penelitian ini mmberikan informasi bahwa dengan kebijakan besaran anggaran oprasional menggunakan variable atau dasar perhitungan hanya berdasarkan banyak siswa, mmberikan efek kesenjangan dalam pelayanan pada penyelenggaraan pembelajaran bagi peserta didik, untuk itu diperlukan adanya kebijakan baru untuk diper­timbangkan menambah variable lain dalam mendukung pemerataan pelayanan penyelenggaraan pembela­jaran peserta didik

    Kajian Interferensi Koefisien Hambatan Pada Lambung Katamaran Melalui Komputasi \u27Slender Body Method

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    The past decade has witnessed a rapid growth of interest in the development of fast catamaran for various applications. The paper describes the study of interference resistance components on demihull separation. Catamarans or twin-hull vessels may be formed either by connecting two symmetrical demihulls or by splitting a mono hull into two halves to form two asymmetric demihulls. The slender body method in HullSpeed- Maxsurf Program was used for predicting the resistance components. The method assumes that the ship\u27s beam is small compared to its length. Effect of resistance interference components on catamaran hull separations are explained and discussed with some work from other published data, which shows good agreement

    DĂ©fluoruration des eaux d'exhaure de Youssoufia (Maroc) par percolation sur les cendres volantes de charbon

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    Dans cette étude, nous nous sommes intéressés à la défluoruration des eaux souterraines de Youssoufia (eaux d’exhaure) par percolation en colonne sur les cendres volantes de la centrale thermique d’El Jadida et à la désorption des fluorures par la suite. Les résultats obtenus ont montré que :- le rendement d'élimination du F- est d'environ 97 % dans nos conditions expérimentales avec un temps de séjour supérieur à 72 heures ;- la régénération des cendres est possible à l’aide de NaOH;- le nombre de cycles successifs tolérés par les cendres permettant d’atteindre des efficacités convenables est d’au moins huit.The layer of black phosphate in Youssoufia is characterized by the presence of underground water in the building sites. This drainage water must be removed to allow the exploitation of these layers. Observations of the tonnage/flow relationship during previous years allowed the prediction of more than 35000 m3 drainage water/day from the year 2000. This water has particularly high levels of fluorides, which represents a permanent risk for the rural population, which relies on groundwater (wells) for its daily consumption. To minimize adverse health affects and to build on earlier work, the current study was focussed on the sorption performances of coal fly ash in the dynamic mode and on regeneration tests of these ashes for possible revalorization. In this study, we were interested in both the defluoridation of subsoil waters in Youssoufia (drainage waters) by percolation through a column of fly-ash collected from the power station of El Jadida and in fluoride desorption from the ash.The first results from the characterization of this water showed that fluoride concentrations were elevated, exceeding the water quality standard established by the World Health Organization (WHO), 0.7 mg/L for a semi-arid climate. This abnormally elevated content in fluoride comes from the raw phosphates, which have a high fluoride content. Chemical analysis of the fly-ash, carried out by x-ray fluorescence, demonstrated that the principal components were silica, alumina, oxide iron (Fe2O3), and calcium oxide.With respect to the first objective of this study, the sorption experiments of water soluble F- ions from the drainage waters were carried out at 25 °C in a glass column (33 cm high, 2.2 cm in internal diameter) filled with a well-defined mass of fly-ash. The process involved: placing 250 mL of the solution in the higher tank (placed in top of the column) and the flows were adjusted to 4.6, 7.7 and 15.4 mL/h. The concentration of fluorides was measured in the effluent every 24 h, with a fluoride ion selective electrode, pH model Orion SA 520 according to a standardized method (AFNOR, T90-004). Each experiment was carried out twice. The drainage water used had a fluoride content of 2.50 mg/L.With respect to the second objective, the study of the desorption of fluorides from the fly-ash was carried out in a static reactor. The choice was related to chemical desorption with soda, and tests were carried out to evaluate the parameters likely to support desorption (concentration of soda, volume to be used, kinetics of desorption). The method used for desorption consisted of brewing the fly-ash in a basic solution (1g of ashes /100mL of soda) during one hour, at a stirring speed of 300 rpm. The concentration of fluorides was then measured in this solution by a potentiometric method following filtration. The fly-ash was removed and rinsed with distilled water and then re-used for a new sorption. The desorption tests were carried out on fly-ash that had been saturated by contact with the drainage waters from Youssoufia ([F] = 2.5 mg/L, pH=7.86). The sorption stage consisted of putting 10 g of ash in contact with 1 L of the drainage water with a stirring rate of 300 rpm and the tests were carried out at ambient temperature.The results of the defluoridation by percolation through the fly-ash showed that the concentration of fluorides in the effluent decreased to 0 mg/L « < 5 10-7 M », when the flow decreased from 15.4 mL/h (flow 1) to 7.7mL/h (flow 2) to 4.8 mL/h (flow 3), after 96 to 120 hours. Similar results were also obtained by Piekos et al (1998).The first regeneration results were encouraging for several reasons. First of all, the regeneration of support was possible and desorption was very important. This demonstrated that basic media are probably favorable for desorption. In parallel, the kinetics of desorption with soda were very fast and they did not exceed one hour for the various soda solution concentrations tested. Indeed, it was noted that at the end of one hour at least 90% of fluorides were desorbed. The optimum conditions for desorption were 60 min of contact and a soda concentration 6 M.Regenerated ashes were placed again in contact with drainage waters containing fluoride concentrations of 2.50 mg/L. A new sorption of fluorides was noted. This result led us to study the effect of cycle numbers on the adsorption-desorption of fluorides in relation to the effectiveness of regeneration. A histogram of the results demonstrated that the quantities adsorbed and desorbed for the same cycle were practically equal for the eight cycles carried out, thus the effectiveness of ash was practically the same

    Myofilament Phosphorylation and Function in Diastolic Heart Failure

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    A Case of Gastric and Duodenal Strongyloidiasis

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    Strongyloides stercoralis is a nematode parasite which causes a protracted asymptomatic intestinal infection. It is considered a life threatening condition in immunocompromised patients when hyperinfection is associated with disseminated disease. The diagnosis by routine stool examination is very limited since the larval output in stools is very low. We present the case of a 52 year-old Omani man from Salalah, in the southern region of Oman, with a 15-year history of type 2 diabetes mellitus and recently discovered to have hairy cell leukaemia, who complained of nausea, abdominal pain, loss of appetite and loss of weight. An oesophagogastroduodoscopic biopsy was obtained and histopathologic examination revealed gastrointestinal strongyloidiasis.

    Effect of ketoprofen on immune cells in mice

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    Purpose: To study the immunosuppressant and immunopotentiating effects of ketoprofen on antibody producing cells.Methods: Mice were given ketoprofen at doses of 1 mg/kg/day and 5 mg/kg/day for seven days. Similarly polyinosinic–polycytidylic acid (Poly IC) and phosphate buffer saline (PBS) were used as positive and negative control, respectively, for seven days. After seven days, the mice were sacrificed and their spleens removed. Simultaneously, blood was withdrawn from the hearts of the mice and serum was separated from the blood. The spleen cells were analyzed by enzyme-linked immunospot (ELISPOT) while the serum was investigated by enzyme-linked immunosorbant (ELISA) to evaluate the effects of ketoprofen on the ability of individual cell to produce antibodies and antibody- mediated immune responses.Results: Ketoprofen significantly (p &lt; 0.001) reduced the ability of individual cells to produce antibodies. There was a significant difference (p &lt; 0.001) in % of spot forming cells of PBS treated negative control group (0.045 %) as against positive control (0.058 %), 1 mg ketoprofen /kg/day (0.037 %) and 5 mg ketoprofen/kg/day (0.032 %) treated groups. The results of ELISA showed a significant (p &lt; 0.005) difference in the absorbance values between negative control, positive control, ELISA control and ketoprofen treated groups. Absorbance was significantly (p &lt; 0.005) reduced in ketoprofen-treated groups.Conclusion: The ability of an individual cell to produce antibodies and antibody-mediated immune responses is suppressed by ketoprofen, suggesting that it is immunosuppressive, and thus indicating its potential application in patients with auto-immune disorders.Keywords: Ketoprofen, Immunomodulatory, Immunosupressive, Antibody, Spot-forming cells, Polyinosinic–polycytidylic aci
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