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Study on the Quality of Broiler Carcasses Stored at Room Temperature After Steaming Treatments Hantoro, A; Rahardjo, Djoko; Santoso, BS
ANIMAL PRODUCTION Vol 7, No 1 (2005): January
Publisher : Universitas Jenderal Soedirman, Faculty of Animal Science, Purwokerto-Indonesia

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Abstract

This research is conducted to study the effect of steaming time before marketing on quality and storage time of broiler carcasses. A Completely Randomized Design (CRD) with factorial 3 x 4 was used. The first factor was steaming time, i.e. steaming at 80˚C for 2 minutes, 4 minutes, and 6 minutes. The second factor was storage time at room temperature, i.e. initial condition, 4, 8, and 12 hours. The parameters observed were pH, water holding capacity, and total number of bacteria. Results showed that the interaction between steaming time and storage time had significant effect on pH, and  total number of bacteria. Storage time had significant effect on water holding capacity of broiler carcasses. It can be concluded that steaming at 80˚C before marketing significantly decreases total number of bacteria. Meanwhile, broiler carcasses stored for 8 hour at room temperature showed no significant decrease of carcass quality (pH, water holding capacity and total number of bacteria). (Animal Production 7(1): 1-5 (2005) Key words: Quality of broiler carcasses, steaming time, storage time, room temperature
KAJIAN KEPUASAN MAHASISWA TERHADAP LAYANAN PROSES PEMBELAJARAN JARAK JAUH PADA PROGRAM STUDI D2 PERPUSTAKAAN Rahardjo, Djoko; Suharmini, Sri; Majidah, Majidah
Jurnal Pendidikan Terbuka Dan Jarak Jauh Vol 19 No 2 (2018)
Publisher : LPPM Universitas Terbuka

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Abstract

Universitas terbuka is one of university in Indonesia that implement a remote and open learning system. Learning distance requirements are not carried out by using media, both print (module) and non-print (audio/video, computer/internet, radio broadcasting, and television). To serve students spread throughout Indonesia, excellent service is required. UT continues to increase its commitment to promoting academic quality and one of the academic qualities that need to be improved is the learning process where in the learning process there are general service aspects, aspects of registration services, tutorial service aspects, either TTM tutorials or online tutorials (TUTON), practicum services, services teaching materials, Online Bookstore services (TBO), SIPAS services and aspects of service for administering examinations. This study is intended to determine the level of satisfaction of students, especially D2 Library students of FISIP-UT Library, to the services provided by UT. The method used is quantitative and qualitative methods. The results of the assessment of satisfaction and importance are ≥ 50% of students are satisfied and feel an interest in the various services provided by UT.
KEANEKARAGAMAN DAN BIOAKTIVITAS SENYAWA AKTIF MAKROALGA PANTAI WEDIOMBO KABUPATEN GUNUNG KIDUL Prasetyaningsih, Aniek; Rahardjo, Djoko
AgriSains Vol 17, No 2 (2016)
Publisher : FAPETKAN UNTAD

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Abstract

Research of macroalga diversity and bioactivity was conducted from February to September 2016 at Wediombo beach, Gunung Kidul district. The used sampling method was “metode jelajah” and the environmental parameters measured include temperature, salinity, depth, pH, turbidity, dissolved oxygen (DO), and concentration of nitrate and phosphate. Identification was based on morphological characteristics. Extraction sample was stratified using ethanol and ethyl acetate. Method of HTS (High Throughput Screening) was applied to test the potential of active compounds. Antimicrobial Test was conducted with cell growth indicators (MTT), while the indicator DPPH was used for the antioxidant test (80mg / 100ml), and TLC and GC-MS for profiling the active compound. Seventeen species macroalgal were found at the shore of Wediombo, includes: Rhodophyta (7 species), Phaeophyta (5 species) and Chlorophyta (5 species) of which were dominated by macroalgal on coral reefs. Nine macroalgae found to have antioxidant activity (Acrocystis nana, Caulerpa sp., Chaetomorpha crassa, Dictyota sp., Gracilaria canaliculata, Gelidiella acerosa, Sargassum sp., Turbinaria sp. and Ulva lactuca) and 3 macroalgae (Boergesenia forbesii, Halymenia maculata and Palisada concreta ) did not possess the activity. Macroalgae which were tested for microbial activity, generally had antimicrobial against C. albicans and Shigella sonnei except E. coli. Results of TLC indicated that all of macroalgal had active compounds: terpenoid, glucose, flavonoids, phenols and amino acids but only few of them contained saponin, based on GC-MS test, Acrocystis nana, Zanardini was found to contain 1-Octadecyne (17.78%), Octadecanal (17, 83%) Dicholesteryl succinate (37.53%) and Cholestan-3-one, 4-methyl (26.86%) had the potential to be antimicrobial and antioxidant as well as bioenergy sources. Key words : Macroalga, High-Troughput Screening,  metabolites profiling
MANAGEMENT OF URETER STONES USING ESWL COMPARED TO URS Rusydi, Muhammad Omar; Rahardjo, Djoko
Indonesian Journal of Urology Vol 20 No 2 (2013)
Publisher : Indonesian Urological Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32421/juri.v20i2.8

Abstract

Objective: To evaluate the management of ureterolithiasis using Extracorporeal Shock Wave Lithotripsy (ESWL) EDAP Sonolith Technomed compared to ureteroscopy (URS) with holmium:YAG laser lithotripsy. Material & Method: Research was conducted at Central Pertamina Hospital Jakarta by comparative analysis. The data was taken from patients’ medical records diagnosed with ureterolithiasis who had been treated from January to Desember 2009.Results: Central Hospital Pertamina Jakarta had treated 127 patients with urolithiasis from January to December 2009. Most frequent therapeutic modality was URS, which was followed by ESWL.Double J stents were used in 19,8% of the treatmentin combination with URS, more common than ESWL. Stone free rate in urolithiasis was not significantly different between treatment with URS and ESWL, although stone free rate of URS was higher than ESWL.Use of DJ stent didn’t affect stone free rate of urolithiasis from two of these modalities.Conclusion: Stone free rate of these modalities was below of stone free rate at literatures published, because evaluation from stone free rate of this research was taken after the treatment or 1-2 days after the treatment with imaging of KUB and USG.Keywords: Urolithiasis, extracorporeal shock wave lithotripsy, ureteroscopic,DJ stent, stone free rate.
RELATION BETWEEN AGING MALE SYMPTOM SCORE (AMS SCORE) AND AGE Ghinorawa, Tanaya; Rahardjo, Djoko
Indonesian Journal of Urology Vol 17 No 2 (2010)
Publisher : Indonesian Urological Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32421/juri.v17i2.346

Abstract

Objective: To study the relation of the Aging Male Symptom Score (AMS score) with age groups, and to find the age when the AMS score increases. Material & method: In all, 347 patients with age beginning at 50 years underwent an interview with the AMS Score questionnaire, then they were divided according to age in groups, less than or equal to 50 years, 51 – 55 years, 56 – 60 years, and more than 60 years. Results: In the age group less than or equal to 50 years, there were 26 men (7,5%). With an abnormal AMS psychology, there were 18 men, with abnormal AMS somatovegetative score there were 20 men, with an abnormal AMS sexual score 20 men, and with abnormal total AMS Score 14 men. In the age group 51 – 55 years, there were 146 men (42,07%), with an abnormal AMS psychology in 75 men, with abnormal AMS somatovegetative score 114 men, abnormal AMS sexual in 123 men, and abnormal total AMS Score in 71 men. In age group 56 - 60 years there were 48 men (13,83%), abnormal AMS psychology in 35 men, abnormal AMS somatovegetative score in 44 men, abnormal AMS sexual in 45 men, and abnormal total AMS Score in 35 men. In the age group of more than 60 years, there were 127 men (36,6%), abnormal AMS psychology was found in 87 men, abnormal AMS somatovegetative score in 112 men, abnormal AMS total sexual score 122 men, and abnormal total AMS score was in 96 men. All of the AMS score values significantly increased after 55 years old, p value at AMS psychology was 0,005, AMS somatovegetative was 0,000, AMS sexual was 0,000, and at total AMS Score was 0,000. To define the age when AMS score increases. The conclusion was that AMS psychology values begin to increase after 55 years (sensitivity 69,71, specificity 45,93), AMS somatovegetative values increase after 55 years (sensitivity 89,14, specificity 22,09), and total AMS score value begins to increase at 55 years (sensitivity 74,86, specificity 50,58). However, AMS sexual value increase at 50 years (sensitivity 90,34, specificity 23,08). Conclusion: All of the AMS score values increase significantly at 55 years.
Bionomic of Anopheles sp. in Merauke District, Papua Rahardjo, Djoko; Prakasita, Vinsa Cantya; Pepiana, Marlen Aviati Sarah
SCISCITATIO Vol 1 No 1 (2020): Volume 1, Number 1, January 2020
Publisher : Universitas Kristen Duta Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21460/sciscitatio.2020.11.20

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Malaria is known as an endemic disease that often causes death in Indonesia, especially in Papua. The malaria cases control in Papua has not been carried on based on data studies, therefore bionomic of Anopheles sp is important to be studied. Bionomics data are consisted of breeding places, resting places and feeding habits are from direct observation. Interviews and questionnaires were conducted to gain information about respondent behavior. Descriptive and qualitative data were then analyzed. The breeding places of Anopheles sp. were mostly found in swampy areas. Based on the feeding habit, the feeding activity of Anopheles sp. inside the house has only one biting peak at 23.00-02.00 WIT, while outside the house, biting peaks occurred at 21.00-22.00 WIT and 00.00-01.00 WIT. Resting place data shown that Anopheles sp. mostly found in piles of clothes and shoe racks. Recorded factors that affect mosquitos bionomics are temperature, humidity, salinity, pH, community behavior, and the presence of livestock. Environmental factors (temperature, humidity, salinity, and pH), habitual behavior of host (3M action, the habit of using insect repellent, mosquito repellent, and mosquito nets), the presence of livestock, and the type of bait blood type affect mosquito activity
Hubungan Konsentrasi Kromium (Cr) dalam Air Sumur dengan Konsentrasi pada Urin dan Rambut Warga Dusun Banyakan Yogyakarta Poa, Yoseph Junedi; Rahardjo, Djoko; Kisworo
SCISCITATIO Vol. 2 No. 1 (2021): Volume 2, Number 1, Januari 2021
Publisher : Universitas Kristen Duta Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21460/sciscitatio.2021.21.41

Abstract

Aktivitas pembuangan limbah cair industri penyamakan kulit di dusun Banyakan memiliki dampak negatif bagi lingkungan. Masuknya pencemar kromium kedalam air sumur adalah salah satu dampak negatif tersebut. Tujuan dari penelitian ini adalah untuk mengetahui konsentrasi kromium dalam air sumur, rambut dan urin warga setempat. Penelitian dilakukan di Dusun Banyakan, Kabupaten Bantul, Provinsi Daerah Istimewa Yogyakarta. Sampel yang diambil adalah sampel air sumur, urin dan rambut. Ektraksi sampel menggunakan metode destruksi aqua regia (3HNO3 + HCl) selanjutnya analisa konsentrasi kromium menggunakan instrumen AAS (Atomic Absorption Spectrophotometry). Pencemar kromium ditemukan pada semua sampel, baik air sumur, rambut dan urin. Sampel rambut memiliki konsentrasi kromium paling tinggi dengan rerata sebesar 0,4685 Mg/Kg, diikuti sampel urin dengan rerata 0,0007 Mg/L dan terendah pada sampel air sumur dengan rerata 0,0007 Mg/L. Konsentrasi kromium pada rambut dan urin didapati melebihi standar baku mutu. Paparan yang diterima warga rata-rata per harinya adalah 0,10125 ?g/L serta tidak ada hubungan antara asupan harian kromium dengan konsentrasi kromium pada urin dan rambut.
Pengaruh Penggunaan Lahan, Sumber Pencemar dan Tipe Vegetasi Riparian terhadap Kualitas Air Sungai Code Daerah Istimewa Yogyakarta Njurumay, Reksi; Rahardjo, Djoko; Kisworo
SCISCITATIO Vol. 2 No. 2 (2021): Volume 2, Number 2, Juli 2021
Publisher : Universitas Kristen Duta Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21460/sciscitatio.2021.22.67

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Sebagai salah satu sungai besar di Provinsi Daerah Istimewa Yogyakarta, kualitas air Sungai Code banyak ditentukan oleh pengaruh aktivitas manusia dan kondisi alamiah yang ada disekitarnya. Penelitian ini bertujuan untuk mengetahui hubungan antara tataguna lahan, tipe vegetasi riparian, dan sumber bahan pencemar terhadap kualitas air sungai Code. Metode penelitian yang digunakan adalah purposive sampling. Parameter yang diukur terdiri dari parameter fisik, kimia, dan biologi. Parameter fisik sungai meliputi kedalaman, kekeruhan, kecerahan, kecepatan arus, debit air, suhu, tipe substrat, TSS, dan TDS. Parameter kimia sungai meliputi pH, DO, BOT, nitrat, fosfat, dan amonia. Parameter biologi meliputi vegetasi riparian dengan indeks biotik meliputi kerapatan, indeks kekayaan jenis, dan indeks keanekaragaman jenis. Penggunaan lahan di sungai Code didominasi oleh pembangunan (tanggul,pemukiman), pertanian dan jalan. Aktivitas masyarakat didominasi oleh aktivitas bertani dan penambangan pasir. Jenis sumber pencemar yang dominan adalah limbah rumah tangga.Karakteristik lingkungan di sungai Code adalah berbatu dan berpasir. Ditemukan 36 spesies,25 famili, 23 ordo, 4 kelas, dan 2 divisi. Struktur komunitas vegetasi riparian didominasi oleh famili Poaceae, Asteraceae dan Malvaceae. Penggunaan lahan, pola aktivitas dan sumber pencemar dapat mempengaruhi kualitas air sungai Code (parameter fisik dan kimia). Keberadaan struktur komunitas vegetasi riparian dapat mempengaruhi kualitas air sungai Code khususnya pada parameter BOT dan Nitrat air sungai Code.
PEMANFAATAN MEDIA SOSIAL SEBAGAI PENDUKUNG MAHASISWA PENDIDIKAN TINGGI JARAK JAUH Bintarti, Arifah; Rahardjo, Djoko
Jurnal Ilmu Komunikasi UHO : Jurnal Penelitian Kajian Ilmu Komunikasi dan Informasi Vol 7, No 1 (2022): Edisi Januari
Publisher : Laboratorium Ilmu Komunikasi, Fakultas Ilmu Sosial dan Ilmu Politik (FISIP) Universitas Ha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (328.397 KB) | DOI: 10.52423/jikuho.v7i1.22101

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Pandemi Covid-19 berdampak besar pada berbagai sektor, salah satunya proses pembelajaran di perguruan tinggi jarak jauh. Tutorial online merupakan layanan pembelajaran yang dimanfaatkan oleh Universitas Terbuka. Selama pandemi, hampir semua orang mengakses internet sehingga kinerja teknologi dalam tutorial online menjadi lebih rendah. Kuantitas mahasiswa dalam mengikuti tutorial online cenderung meningkat namun kualitas aktivitas mahasiswa dalam mengakses tutorial belum optimal. Penelitian ini akan mengidentifikasi beberapa faktor penyebab belum optimalnya kualitas dalam mengakses tutorial online. Menggunakan metode kuantitatif dan kualitatif berupa wawancara, dengan sampel sebanyak 118 responden. Hasil penelitian menunjukkan bahwa siswa membutuhkan media sosial untuk meningkatkan proses belajar mereka dalam tutorial online. Media Sosial akan digunakan sebagai media tambahan untuk berkomunikasi dalam pelaksanaan tutorial online. Kata-kata Kunci: pendidikan tinggi jarak jauh; media sosial; tutorial online
TEKNIK PARAFRASE UNTUK MENINGKATKAN JUMLAH TES ITEM PADA PROGRAM STUDI ILMU KOMUNIKASI UNIVERSITAS TERBUKA Rahardjo, Djoko; Afriani, Afriani; Kosasih, Fauzy Rahman
Jurnal Ilmu Komunikasi UHO : Jurnal Penelitian Kajian Ilmu Komunikasi dan Informasi Vol 7, No 1 (2022): Edisi Januari
Publisher : Laboratorium Ilmu Komunikasi, Fakultas Ilmu Sosial dan Ilmu Politik (FISIP) Universitas Ha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (485.987 KB) | DOI: 10.52423/jikuho.v7i1.22104

Abstract

Di lembaga pendidikan, asesmen merupakan isu penting dalam upaya mengukur keberhasilan proses belajar siswa. Bank-soal sering mengalami kekurangan soal, terutama ketika buku-buku materi pokok baru diterbitkan sebagai bahan ajar. Jumlah item yang diperlukan dalam set pertanyaan tidak terpenuhi. Hal ini akan menurunkan kualitas asesmen. Tujuan penelitian ini adalah untuk memberikan alternatif bank soal dalam memperbanyak butir soal dengan teknik parafrase. Tahapan penelitian meliputi membuat prosedur parafrase, mengujicobakan kepada beberapa penulis tes, menentukan kategori parafrase, dan memutuskan teknik mana yang sesuai untuk tes stem atau item pertanyaan tertentuKata-kata Kunci: Parafrase; butir soal; asesmen; tes berbasis teksÂ