Articles
RESIPROKAL MENGGUNAKAN SIMPAI MEMPERBAIKI BELAJAR PASSING ATAS BOLA VOLI
Bangun, Sabaruddin Yunis
Journal of Sport Science and Education Vol 2, No 1 (2017)
Publisher : Fakultas Ilmu Olahraga, Universitas Negeri Surabaya
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DOI: 10.26740/jossae.v2n1.p20-24
The purpose of this study was to determine whether through the implementation of reciprocal teaching style by using the media to improve learning outcomes loops passing over a volleyball student-SMP 40 Medan. The research method used is descriptive quantitative approach to the type of classroom action research. In this case the researchers used a descriptive statistical analysis. For example, to find the mean, percentage of student success. The results of this study is to use Media Reciprocal teaching style hoops give effect to the improvement of learning outcomes of students Passing the Volleyball Field SMPN 40 academic year 2015/2016. Value of the average percentage of students in the pre-test was 51% (Not Completed), the post-test I mean value increased to 56.83% of students (Not Completed), and the implementation of the post-test II the average student has reached 73.5% (Completed)
PENGARUH TEMPERATUR QUENCHING PADA PROSES AUSTEMPERING TERHADAP KEKUATAN LELAH AUSTEMPERING GREY IRON
Suprihanto, Agus;
Ilmi, Miftakhul
ROTASI Volume 9, Nomor 2, April 2007
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro
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DOI: 10.14710/rotasi.9.2.25-30
Kegagalan lelah adalah hal yang sangat membahayakan karena terjadi tanpa petunjuk awal. Kelelahan mengakibatkan patah yang terlihat rapuh tanpa terjadi deformasi pada patahan. Untuk meningkatkan sifat-sifat mekanis besi cor kelabu juga dilakukan proses perlakuan panas. Dalam penelitian ini, proses perlakuan panas yang dilakukan adalah Austempering. Temperatur quenching pada proses austempering yang dilakukan yaitu : 350o, 400o, dan 500oC. Dari pengujian siklus tinggi yang dilakukan dengan mesin uji fatigue rotating bending terjadi kenaikan kekuatan lelah sebesar 8,5% dari 94 MPa untuk material tanpa austemper menjadi 102 MPa untuk material dengan austemper 350oC. Dari pengujian struktur mikro terlihat bentuk grafitnya serpih tipe VII dengan distribusi tipe A. Untuk struktur mikro yang telah dietsa nital 5% terlihat perubahan fasa matrik, dari perlit menjadi bainit, dan sedikit ferrit.
Riwayat paparan pestisida dan kekurangan asupan zat gizi sebagai faktor risiko kejadian anemia pada ibu hamil di daerah pertanian
Sulistyawati, Sulistyawati;
Margawati, Ani;
Rosidi, Ali;
Suhartono, Suhartono
Jurnal Gizi Indonesia (The Indonesian Journal of Nutrition) Vol 7, No 2 (2019)
Publisher : Department of Nutrition Science, Faculty of Medicine, Universitas Diponegoro
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DOI: 10.14710/jgi.7.2.69-75
Background: Anemia in pregnant women in Brebes Regency, Central Java in 2016 was still high at 60.7%. Brebes Regency is an area of onion farming with a high intensity of pesticide use. Objectives: This study aimed to prove the history of pesticide exposure and lack of nutrient intake (iron and vitamin C) was risk factor for the incidence of anemia in pregnant women in agricultural area. Methods: Case control study with 41 cases (anemia) and 41 controls (non-anemia) as study subjects. The subjects were selected using purposive sampling method. Pesticide exposure history included the involvement of pregnant women in agricultural activities, frequency of exposure and length of exposure was measured by interview using structured questionnaire. Anemia data were obtained by measuring hemoglobin levels. Other independent variables measured were nutritional intake (protein, iron, and vitamin C) using semi-quantitative food frequency questionnaire (SQ-FFQ) method to determine the level of nutrient adequacy in pregnant women. Data were analyzed using chi-square test and logistic regression.Result: Hemoglobin levels in the case ranged from 7.2 g/dl to 10.9 g/dl. The results of multivariate logistic regression showed that pesticide exposure history (OR= 4.9, 95% CI:1.75-13.67), level of iron adequacy (OR = 2.9, 95% CI:1.06– 8.29) and level of vitamin C adequacy (OR = 3.4, 95% CI:1.10– 10.28) as risk factors for the incidence of anemia in pregnant women in agricultural area.Conclusion: The history of pesticide exposure and lack of nutrient intake (iron and vitamin C) was risk factor for the incidence of anemia in pregnant women in agricultural area.
Kadar seng dan kadar malondialdehyde pada penderita multi drug resistant tuberculosis dan tuberkulosis sensitif
Suparno, Suparno;
Suhartono, Suhartono;
Sofro, Muchlis Achsan Udji;
Sulchan, Mohammad;
Tjahjono, Kusmiyati
Jurnal Gizi Indonesia (The Indonesian Journal of Nutrition) Vol 7, No 1 (2018)
Publisher : Department of Nutrition Science, Faculty of Medicine, Universitas Diponegoro
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DOI: 10.14710/jgi.7.1.8-14
Background: Zinc is the main constituent element of Superoxide Dismutase (SOD) which acts to protect cells from inflammation and the toxic effects of Reactive Oxygen Species (ROS). High ROS production induces fat peroxidation, and forms malondialdehyde (MDA) which causes oxidative stress.Objectives: This study aimed to analyze the difference of zinc and malondialdehyde levels among Multi Drug Resistant Tuberculosis and sensitive Tuberculosis.Methods: Crossectional study with 55 subjects consisted of 32 MDR-TB subjects and 23 subjects TB sensitive. Selection of subjects using consecutive sampling. Zinc and MDA serum was obtained from venous blood. Zinc and MDA concentration were assessed by quantitative colometric and Thiobarbituric Acid Reactive Substances (TBARS) respectively. Data were analized statistic by independent t-test and Mann Whitney test.Results: Zinc level of MDR-TB and TB sensitive were 74.85 (64 - 97) μg/dl and 73.03 (63 - 97) μg/dl respectively, while MDA of MDR-TB and sensitive TB were 2.262±1.055 nmol/mL and 2.66±0.992 nmol/mL. There was no significantly different in zinc level between MDR-TB and sensitive TB (p=1.000). Furthermore, there was not significantly different of MDA level between MDR-TB and sensitive Tuberculosis (p=0,147).Conclusion: There are no differences in zinc and MDA levels in patient between MDR-TB and sensitive TB.
Hubungan Antara Kualitas Perawatan Kateter Dengan Kejadian Infeksi Nosokomial Saluran Kemih
Kasmad, Kasmad;
Sujianto, Untung;
Hidayati, Wahyu
Nurse Media Journal of Nursing Vol 1, No 1 (2007): MEDIA NERS
Publisher : Department of Nursing, Faculty of Medicine, Diponegoro University
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DOI: 10.14710/nmjn.v1i1.237
Nosocomial infection refer to occurrence the often happen in hospital and can causes import to patient, family and hospital of self. Once of infection that often happened is infection of urinary tract at the patient with dower chateter. Factors that caused nosocomial infection of urinary tractare hospes, agent, installation procedure, old of installed chateter and quality of chateter treatment. This research ago to know the quality chateter treatment with the occurrence of nosocomial infection urinary tract. The research method is observation and the instrument used observation sheet. Independent variable in this research is the quality of chateter treatment and for the dependent variable is occurrence as nosocomial infection of urinay tract. The research subject is cause who had Diploma degree and Graduate of nursing, male patient that treated in Roemani’s Hospital, wear installed dower chateter, age of respondent between 18 – 55 years old, medic diagnose was not tractus urinarius infection, not consume antibiotic and agree to be respondent. Amount of sample are 30 respondents. Result of this research showed that the must quality of treatment chateter is enough (50%), good (30%) and less (20%). Number of occurrence of nosocomial infection of urinary tract that got chateter treatment with good quality was 22.22%, enough 26.67% and less 83.33%. To decrease the occurrence of nosocomial infection of urinary tract that cause by installing of chateter was need the increasing the quality of chateter treatment that appropriate to the nursing procedure standart and the pressed of infection prevention. Statistic test used Chi Square test to examine the relation between the quality of chateter treatment with the occurrence of nosocomial infection of urinary tract. Chi Square analisis result t count (7.081) > t table (5.99) and p value (0.029) < 0.05. Which means that there is relation between quality of chateter treatment with the occurrence nosocomial infection of urinary tract.
Pemanfaatan Bakteri Asam Laktat yang Di Isolasi Dari Saluran Pencernaan Ayam Lokal Untuk Pembuatan VCO Secara Fermentasi
Khotimah, Husnul;
Baniyah, Laelatul;
Hanafi, Imam;
Wardani, Permadi Wisnu Aji;
Sari, Saskia Maisi Monika;
Nur Jannah, Siti
Bioma : Berkala Ilmiah Biologi Vol. 20, No. 1, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro
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DOI: 10.14710/bioma.20.1.35-39
Indonesia merupakan negara tropis yang memiliki banyak pulau dan merupakan negara produsen kelapa utama di dunia. .Pada tahun 2014 luas areal perkebuan tanaman kelapa di dunia mencapai 11 juta ha dan 93% berada di wilayah Asia Pasifik. Hal ini merupakan peluang untuk pengembangan kelapa menjadi aneka produk yang bermanfaat. Salah satu pemanfaatan kelapa dalam bidang kesehatan dalam upaya mendukung visi Indonesia sehat 2015 adalah dengan adanya VCO (virgin coconut oli). Proses pembuatan VCO adalah dengan cara fermentasi tidak mengalami proses pemanasan dan difermentasi dengan menggunakan bakteri asam laktat hasil dari isolasi pada saluran pencernaan ayam lokal, sehingga VCO yang dihasilkan memiliki kualitas yang baik. Berdasarkan uji fisik (uji viskositas) menunjukkan sampel H dengan isolat BUB 3 bahwa nilai viskositas sebesar 58,4325 Pa.s dan densitas 937,5 Kg/m3. Pada uji kimia (uji asam lemak bebas) didapatkan hasil kadar asam lemak bebas sampel H (BUB 3) dengan paling mendekati kadar asam lemak bebas menurut SNI 7381 tahun 2008 tentang VCO yaitu kadar asam lemak bebas maksimal dalam VCO adalah sebesar 0,2%. Sedangkan berdasarkan uji hasil pengujian organoleptik dari 11 koresponden didapatkan hasil bahwa tingkat kesukaan dari koresponden terhadap tekstur dari sampel VCO yaitu 7, yang berarti suka. Tingkat kesukaan terhadap aroma dari sampel VCO yaitu 7, yang berarti suka. Tingkat kesukaan terhadap rasa dari sampel VCO yaitu 5, yang berarti netral. Sedangkan tingkat kesukaan terhadap warna dari sampel VCO yaitu 5, yang berarti netral dan menunjukkan kualitas VCO yang didapatkan baik. Kata kunci: VCO, BAL, saluran pencernaan ayam, fermentasi
Inventarisasi Jenis Capung (Odonata) Pada Areal Persawahan Di Desa Pundenarum Kecamatan Karangawen Kabupaten Demak
Rizal, Samsul;
Hadi, Mochamad
Bioma : Berkala Ilmiah Biologi Vol. 17, No.1, Tahun 2015
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro
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DOI: 10.14710/bioma.17.1.16-20
Paddy fields is one of the important ecosystem that support human life because here produced rice that is the main food to the human. Besides, paddy field ecosystem also have many diversity of insect, including dragonfly (Odonata). Dragonfly (Odonata) is one of the insect that used to be a predators to the pests in the paddy fields, such as Chilo sp and Nilaparvata lugen. The study on dragonfly was conducted in Pundenarum village, Karangawen, Demak. The objectives of this study is to identify the odonata specieses that lived in paddy field. Inventory of odonata specieses done with field by field method and direct catch using insect net. The result of this study is that 5 specieses of odonata were identified in paddy field, i.e: Orthetrum sabina, Crocothemis servillia, Pantala flavescens, Agriocnemis femina dan Agriocnemis pygmea. The odonata specieses that identified is part of 2 family, i.e: Libellulidae and Coenagrionidae. It is also found that all species is part of the suborder Anisoptera (dragonfly) and Zygoptera (damselflies). Key word : dragonfly, Odonata, inventory, paddy field.
APLIKASI GENERALIZED SPACE TIME AUTOREGRESSIVE (GSTAR) PADA PEMODELAN VOLUME KENDARAAN MASUK TOL SEMARANG
Anggraeni, Dian;
Prahutama, Alan;
Andari, Shofi
MEDIA STATISTIKA Vol 6, No 2 (2013): Media Statistika
Publisher : Department of Statistics, Faculty of Science and Mathematics, Universitas Diponegoro
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DOI: 10.14710/medstat.6.2.61-70
Time series data from neighboring separated location often associated both spatially and through time. Generalized space time autoregrresive (GSTAR) model is one of the most common used space-time model to modeling and predicting spatial and time series data. This study applied GSTAR to modeling vehicle volume entering four tollgate (GT) in Semarang City: GT Muktiharjo, GT Gayamsari, GT Tembalang, and GT Manyaran. The data was collected by month from 2003 to 2009. The best model provided by this study is GSTAR (21)-I(1,12) uniformly weighted with the smallest REMSE mean 76834. Key words: GSTAR, Vehicle Volume, Space-Time Model
KAJIAN PERBAIKAN KECEPATAN WAKTU EKSEKUSI TERHADAP UNJUK KERJA PIRANTI INPUT/OUTPUT
suhartono, suhartono
MATEMATIKA Vol 4, No 2 (2001): JURNAL MATEMATIKA
Publisher : MATEMATIKA
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Unjuk kerja komputer merupakan permasalahan yang sering dibicarakan bagi pengguna dan perancang komputer. Unjuk kerja komputer dapat ditingkatkan dengan memperbaiki teknologinya, baik dari segi perangkat keras maupun perangkat lunaknya. Dalam penelitian ini dikaji mengenai unjuk kerja dari piranti Input /Output Indikator unjuk kerja yang diteliti adalah waktu I/O. Pengkajian dilakukan menggunakan hubungan antara waktu CPU, Waktu I/O dan Elapsed Time. Berdasarkan hasil komputasi diperoleh bahwa perbaikan Waktu CPU berpengaruh terhadap perbaikan waktu I/O
Penentuan Entrance Skin Exposure (ESE) pada Pesawat Mammografi Mammomat 1000 dengan Filter Molybdenum (Mo) dan Rhodium (Rh)
Susanti, Fitri;
Anam, Choirul;
Setiawati, Evi
JURNAL SAINS DAN MATEMATIKA Volume 22 Issue 1 Year 2014
Publisher : JURNAL SAINS DAN MATEMATIKA
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Mammography is a radiographic examination to detect breast cancer earlier. However, the usage of radiation with low kVp can cause high dose and this becomes the reason why monitoring the dosage during the mammography process is an important thing to do. One of the techniques to monitor the radiation level is done based on the Entrance Skin Exposure (ESE) value. This research was aimed to determine the ESE value using molybdenum (Mo) and rhodium (Rh) as the filter at Mammomat 1000 mammographics system.The research was started by measuring the consistency of the X-ray tube voltage (kVp ). After that, the ESE value at the target/filter Mo/Mo and Mo/Rh was measured using a Barracuda Multi Purpose Detector (MPD). The tube voltage during the research was 26, 28, and 30 kVp with fixed electrical current-time 100 mAs. The result shows that ESE value resulted at the target/filter Mo/Mo and Mo/Rh is tolerable, except at tube voltage 30 kVp with target/filter Mo/Mo. The comparison of ESE value shows that Mo/Rh has lower ESE value than Mo/Mo. Â Keywords: Entrance Skin Exposure (ESE), mammography, Barracuda Multi Purpose Detector (MPD) Â Â Pemeriksaan mammografi merupakan tindakan efektif dalam mendeteksi adanya kanker payudara sejak dini. Namun demikian, penggunaan teknik radiasi dengan kVp rendah pada mammografi dapat menyebabkan dosis tinggi. Oleh karena itu, pemantauan dosis pada pemeriksaan mammografi sangat penting dilakukan. Salah satu teknik pemantauan dosis radiasi dapat dilakukan dengan nilai Entrance Skin Exposure (ESE). Penelitian ini bertujuan untuk menentukan nilai ESE dengan filter molybdenum (Mo) dan rhodium (Rh) pada pesawat mammografi Mammomat 1000. Penelitian diawali dengan pengukuran konsistensi keluaran tegangan tabung sinar-X (kVp output). Selanjutnya dilakukan pengukuran nilai ESE pada target/filter Mo/Mo dan Mo/Rh dengan menggunakan Multi Purpose Detector (MPD) merek Barracuda. Tegangan tabung yang digunakan dalam penelitian yaitu 26, 28 dan 30 kVp dengan arus-waktu tabung tetap yaitu 100 mAs. Hasil penelitian menunjukan bahwa nilai ESE yang dihasilkan pada target/filter Mo/Mo dan Mo/Rh masih berada dalam batas toleransi yang direkomendasikan, kecuali pada pada tegangan tabung 30 kVp untuk Mo/Mo. Hasil perbandingan nilai ESE menunjukan bahwa Mo/Rh memiliki nilai ESE yang lebih rendah dibandingkan dengan Mo/Mo. Â Kata kunci : Entrance Skin Exposure (ESE), mammografi, Multi Purpose Detector (MPD) Barracuda.