Articles

Found 23 Documents
Search

UPAYA MENINGKATKAN KUALITAS PEROLEHAN SQUALEN PADA MINYAK HATI IKAN HIU DI PERAIRAN CILACAP

SAINTEKS Vol 7, No 1 (2011)
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Original Source | Check in Google Scholar

Abstract

Shark liver oil which becomes the main product for groups of fisherman in Cilacap was produced for traditional food suplement as health product which contains squalen. But the fishermen who processed did not pay attention to the process how to get the shark liver oil stuff so the squalen product could not be guaranted yet as health product. The research aim was to improve the squalendegree quality of shark liver oil organoleptically. This research was an experimental research. Shark liver oil of bottle-type shark was processed by using a tool which was planned to produce it. The result was analyzed quantitatively to get squalen degree then it was compared to the squalen standard product in the market. The other quality aspects were the physical performance and its organolepty especially of the smell which caused problem. Shark liver oil product of this research was higher than that of standard product in the market and more qualified organoleptically because of the appropriate technology which was applied in its production. The comparison of squalen degree of this research comparing to the standard product in the market is 141 to 191 times bigger. The technology in this research used principle heating of perfect black thing producing more constantly heat in which the heat caused the oil out of shark liver organ. After the oil put into the container in that equipment, the oil was passed or refined using zeolite stone that absorbed substances that were undesirable. Absorbent chemical characteristic of this zeolite stone that would absorb undesirable subtances from the production process of shark liver oil so unpleasant or fishy smell of the oil would be reduced when compared to traditional production processes that relied on more stable direct sun heating without being filtered or refined with zeolite stone. This instrument produced more stable heating process and conditioned the process in the clean room so it could minimaze the contamination from outside. The characteristics of zeolite stone as an absorbent could absorb the undesirable substances like amoniac, so unpleasant smell could be reduced. Keywords: Squalen, shark liver oil, cilacap

Penentuan Effort Rate Pada Estimasi Effort Menggunakan Metode Use Case Point Untuk Pengembangan Perangkat Lunak Website Kepemerintahan

Jurnal JSIKA Vol 2, No 2 (2013)
Publisher : Jurnal JSIKA

Show Abstract | Original Source | Check in Google Scholar

Abstract

Abstract: Effort estimation using Use Case Point (UCP) method obtained from the multiplication of the UCP with the Effort Rate (ER). Some studies conclude that there is some value of ER used in the calculation of effort estimation. However, the most often used is the ER with value 20 man-hours given by Karner. Disputes about the research that is ER by Karner occurred in 1993, so it is possible that the ER by Karner not suitable when applied in the calculation of effort estimation for the project worked on in 2013 and the years to come. This study used 8 data of governance website software development projects. The data is used to calculate actual effort, making use case diagrams, and calculations UCP estimation. Further level of analysis that is performed correlation and regression equations for actual effort and the UCP estimation. Based on the regression equation then performed calculations tangent θ to produce the ER. From this research produced the ER as big as 5,178 man-hours. The ER is much smaller than the value given by Karner ER. Case is possible for several reasons, among others: 1) Enginering software technology that is growing rapidly. 2) Manufacturing website using components. 3) Source of the internet so complete. Keywords: Effort Rate (ER), Effort Estimation, Use Case Point (UCP), Governance Website

The Enhancement Quality of Squalene As A Marine Chemopreventive Agent and Vitamin A Level in The Shark Liver Oil at The Territorial Ocean of Cilacap

Indonesian Journal of Cancer Chemoprevention Vol 2, No 2 (2011)
Publisher : Indonesian Research Gateway

Show Abstract | Original Source | Check in Google Scholar

Abstract

Recently, shark liver oil is developed as mainstay product for the Cilacap fishermen proceed to be traditional supplementalfoods and health product that contains squalene and Vitamin A. Squalen is one of marine natural products has demonstratedproliferative activity in animal cancer studies and may havesome radioprotective effects.This observation is aimed to enhance and improve squalene acquirement quality organolepthically.This observation usesexperimental observation design.Shark liver in thebottle will be proceedby thetool that specially designed to produce shark liver oil. Its result is analyzed quantitatively togainthesqualeneandvitaminAlevel.Thecomparisonofsqualene level that has been produced in this observation isapproximately from 141 to 191 higher than standard squalene product in the market. The vitamin A level in thisobservation is approximately 3,6 higher than shark liver oilproduct in the market without processing by the observation tool. The technology in the observation uses heatingprinciple from perfect black tool that causes it more constantlyhot and causes oil flow out from shark liver organ.The oil in thebowl ofthe tool was filtered by zeolit,so that the unpleasantorfishy smell of the oil will decrease if compared with traditionalproduction process. Key words:Squalene,vitaminA,Sharkliveroil,Cilacap

UPAYA MENINGKATKAN KUALITAS PEROLEHAN SQUALEN PADA MINYAK HATI IKAN HIU DI PERAIRAN CILACAP

SAINTEKS Vol 7, No 1 (2011): Jurnal Sainteks Volume VII No 1 Maret 2011
Publisher : LPPM UNIVERSITAS MUHAMMADIYAH PURWOKERTO

Show Abstract | Original Source | Check in Google Scholar

Abstract

 Shark liver oil which becomes the main product for groups of fisherman in Cilacap was produced for  traditional food suplement as health product which contains squalen. But the fishermen who processed did not pay attention to the process how to get the shark liver oil stuff so the squalen product could not be guaranted yet as health product. The research aim was to improve the squalen-degree quality of shark liver oil organoleptically.This research was an experimental research.  Shark liver oil of bottle-type shark was processed by using a tool which was planned to produce it. The result was analyzed quantitatively to get squalen degree then it was compared to the squalen standard product in the market. The other quality aspects were the physical performance and its organolepty especially of the smell which caused problem. Shark liver oil product of this research was higher than that of standard product in the market and more qualified organoleptically because of the appropriate technology which was applied in its production. The comparison of squalen degree of this research comparing to the standard product in the market is 141 to 191 times bigger. The technology in this research used principle heating of perfect black thing producing more constantly heat in which the heat caused the oil out of shark liver organ. After the oil put into the container in that equipment, the oil was passed or refined using zeolite stone that  absorbed substances that were undesirable. Absorbent chemical characteristic of this zeolite stone that would absorb undesirable subtances from the production process of shark liver oil so unpleasant or fishy smell of the oil would be reduced when compared to traditional production processes that relied on more stable direct sun heating without being filtered or refined with zeolite stone. This instrument produced more stable heating process and conditioned the process in the clean room so it could minimaze the contamination from outside. The characteristics of zeolite stone as an absorbent could absorb the undesirable substances like amoniac, so unpleasant smell could be reduced.  Keywords: Squalen, shark liver oil, cilacap          

PENGARUH KOSARIN TERHADAP HASIL TANAMAN MENTIMUN PADA TANAH ALUVIAL

Jurnal Sains Mahasiswa Pertanian Vol 4, No 1: April 2015
Publisher : Jurnal Sains Mahasiswa Pertanian

Show Abstract | Original Source | Check in Google Scholar

Abstract

Mentimun (Cucumis sativus L) merupakan salah satu sayuran buah yang sudah lama dikenal masyarakat Kalimantan Barat dan juga banyak dikonsumsi masyarakat Indonesia dalam bentuk segar. Nilai gizi mentimun cukup baik karena sayuran buah ini merupakan sumber vitamin dan mineral. Dalam mendukung pertumbuhan yang optimal untuk  meningkatkan hasil mentimun dapat dilakukan dengan penggunaan kosarin.Penelitian ini bertujuan untuk  mengetahui pengaruh pemberian kosarin dan mengetahui kosentrasi kosarin yang terbaik terhadap hasil  tanaman mentimun pada tanah aluvial. Metode yang digunakan adalah eksperimen lapangan berupa Rancangan Acak Lengkap (RAL) yang terdiri dari 6 taraf perlakuan yang diulang sebanyak 4 kali dan setiap perlakuan terdiri dari3 sampel tanaman. Perlakuan kosentrasi yang dimaksud antara lain p0 (tanpa perlakuan), p1 (25 ml/liter), p2 (50 ml/liter), p3 (75 ml/liter), p4 (100 ml/liter) dan p5(125 ml/liter).Variabel yang diamati dalam penelitian ini meliputi jumlah buah per tanaman (buah), berat buah per tanaman (g), diameter buah per tanaman (cm) dan panjang buah per tanaman (cm). Hasil penelitian menunjukkan bahwa pemberian kosentrasi kosarin berpengaruh nyata terhadap variabel jumlah buah per tanaman, berat buah per tanaman dan panjang buah per tanaman, akan tetapi tidak berpengaruh nyata terhadap variabel diameter buah per tanaman. Perlakuan kosarin dengan kosentrasi 25 ml merupakan perlakuan yang efektif. Kata Kunci : Aluvial, Kosarin, Kosentrasi, Mentimun

EKSPERIMENTASI MODEL PEMBELAJARAN KOOPERATIF TIPE CO-OP CO-OP, DISCOVERY LEARNING DAN PBL DENGAN PENDEKATAN SAINTIFIK SISWA KELAS VIII SMP NEGERI SE-KABUPATEN NGAWI PADA MATERI BANGUN RUANG SISI DATAR DITINJAU DARI KREATIVITAS BELAJAR MATEMATIKA

Jurnal Pembelajaran Matematika Vol 3, No 8 (2015): Pembelajaran Matematika
Publisher : Jurnal Pembelajaran Matematika

Show Abstract | Original Source | Check in Google Scholar

Abstract

Abstract: This research aims to know the effect among learning models used cooperative learning of Co-op Co-op type with scientific approach, discovery learning (DL) with scientific approach, and  the problem based learning (PBL) with scientific approach. The research method was quasi experimental. The population was all students of grade VIII State Junior High School of district Ngawi Year of 2014/2015. Sampling was taken by stratified cluster random sampling technique. The hypothesis test used two way analysis of variance with unbalanced cell. The results of the research were as follows. (1) The mathematics learning achievement of students treated with Co-op Co-op type of cooperative learning model with scientific approach was better than that of those treated with DL learning model with scientific approach and those treated with PBL learning model with scientific approach, while that of those treated with DL learning model with scientific approach was as good as that of those treated with PBL learning model with scientific approach. (2) The mathematics learning achievement of students with high learning creativity was better than that of those with medium and low ones, while that of those with medium was better than that of those with low one. (3) In Co-op Co-op type of cooperative learning model with scientific approach, the learning achievements of the students with high, medium and low learning creativities were the same. In DL learning model with scientific approach, the students with high learning creativity had mathematics learning achievement as good as those with those with medium one, while those with high and medium learning creativities had better learning achievement than those with low on. In PBL learning model with scientific approach, the students with high and low creativities had mathematics learning achievement as good as that of those with medium one, while the students with high learning creativity had better learning achievement than those with low one. (4) The students with high and medium learning creativities treated with Co-op Co-op type of cooperative learning model with scientific approach had mathematics learning achievement as good as those treated with DL with scientific approach and those treated with PBL with scientific approach. The students with low learning creativity treated with Co-op Co-op type of cooperative learning model with scientific approach had mathematics learning achievement better than those treated with DL with scientific approach, while those treated with Co-op Co-op type of cooperative learning model with scientific approach had mathematics learning achievement with scientific approach and those treated with DL with scientific approach had learning achievement as good as that of those treated with PBL with scientific approach.Keywords: Co-op Co-op, DL, PBL, scientific approach, student learning creativity

Pengaruh Pelatihan Dzikir terhadap Peningkatan Kebermaknaan Hidup pada Mahasiswa

JIP : Jurnal Intervensi Psikologi Vol 5, No 2 (2013)
Publisher : JIP : Jurnal Intervensi Psikologi

Show Abstract | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pelatihan dzikir terhadap peningkatan kebermaknaan hidup pada mahasiswa. Hipotesis yang diajukan pada penelitian ini adalah ada perbedaan kebermaknaan hidup antara subjek yang mendapatkan pelatihan dzikir dan subjek yang tidak mendapatkan pelatihan dzikir. Subjek yang mendapatkan pelatihan dzikir akan mengalami peningkatan kebermaknaan hidup lebih tinggi daripada subjek yang tidak mendapatkan Pelatihan Dzikir. Subjek dalam penelitian sebanyak 12 orang mahasiswa remaja akhir. Subjek dibagi menjadi 2 kelompok yaitu 6 orang subjek sebagai kelompok eksperimen, dan 6 orang subjek sebagai kelompok kontrol. Penempatan subjek dalam kelompok dilakukan secara random. Desain yang digunakan dalam penelitian ini adalah randomized pretest-posttest control group design. Pengukuran pre test dan post test menggunakan Skala Kebermaknaan Hidup. Metode analisis yang digunakan adalah analisis non parametrik (Mann-Whitney Test). Hasil uji hipotesis pada kelompok eksperimen dengan kelompok kontrol diketahui nilai t sebesar = 0,046 (p<0,05). Berdasarkan analisis tersebut berarti ada perbedaan peningkatan kebermaknaan hidup antara kelompok eksperimen dan kelompok kontrol sehingga hipotesis diterima.

BEBERAPA ASPEK BIOLOGI LOBSTER AIR TAWAR (Cherax quadricarinatus) YANG DITANGKAP DENGAN BUBU DI PERAIRAN RAWA PENING KABUPATEN SEMARANG

Management of Aquatic Resources Journal Volume 5, Nomor 1, Tahun 2016
Publisher : Management of Aquatic Resources Journal

Show Abstract | Original Source | Check in Google Scholar

Abstract

Lobster air tawar (Cherax quadricarinatus) merupakan salah satu udang air tawar yang saat ini produksinya atau ketersediaan stok di alam semakin menurun karena tingkat penangkapan yang meningkat sehingga perlu dijaga kelestariannya. Tujuan dari penelitian ini adalah untuk mengetahui beberapa aspek biologi dan strategi pengelolaan sumberdaya Lobster air tawar di Perairan Rawa Pening Kabupaten Semarang. Penelitian ini dilaksanakan pada bulan November 2014. Metode dalam penelitian ini adalah metode deskriptif. Pengambilan sampel menggunakan metode sensus sampling. Data primer meliputi panjang berat lobster, tingkat kematangan gonad, dan fekunditas untuk mengetahui aspek biologi lobster air tawar. Hasil penelitian didapatkan jumlah sampel panjang berat sebanyak 20 ekor dengan kisaran panjang 65 mm - 180 mm dan modus 113 mm - 128 mm sebanyak 19 ekor dan berat 10 gram – 90,3 gram, ukuran pertama kali lobster tertangkap (L 50%) adalah 94,2 mm dan ukuran pertama kali lobster matang gonad (Lm 50%) adalah 93,7 mm. Nilai Lm 50% < Lc 50% dan Lc 50% <1/2 L∞. Sifat pertumbuhannya adalah allometrik negatif dengan nilai Kn adalah 1,125. Jumlah sampel TKG betina sebanyak 10 didominasi oleh TKG II dan TKG IV. Nilai indeks kematangan gonad terendah pada lobster betina adalah 0,91 % dan nilai IKG tertinggi adalah 4,21 %. Pengelolaan lobster air tawar di Perairan Rawa Pening Kabupaten Semarang adalah dilakukan dengan cara jika terdapat lobster yang belum layak tangkap terperangkap, maka sebaiknya dilepaskan kembali ke perairan. Freshwater Crayfish (Cherax quadricarinatus) is one of the freshwater crayfish which needs to be preserved because of increasing capture efforts. The objective of the study was to observe the biological aspects and strategies to manage freshwater crayfish resources in Rawa Pening waters Semarang Regency. The study was conducted in November 2014 use descriptive methods. The samples were obtained use sensus sampling method. Primary data includes length and weight of the fish, gonad maturity level, and fecundity to identify the freshwater crayfish biological aspects. The study has shown that the total sample length and  weight of the freshwater crayfish ranges from 65 mm to 180 mm and weight 10g-90,3g, and the size of the first captured fish (L50%) was 94,2 mm. The growth observed was negative allometric showing the value of Kn 1,125. The gonad maturity level for female freshwater crayfish was dominated by TKG II and TKG IV. The lowest gonad maturity index for female freshwater crayfish was 0,91 % and the highest was 4,21. The first mature gonad for female freshwater fish was obtained was 93,7 mm. The fecundity ranged from 104  to 134 items. The effort to manage freshwater crayfish in Rawa Pening waters Semarang Regency was done by if there are lobsters  that are caught are not worth catching, then its good to be released back into the waters.

Uji Potensi Biogas dari Limbah Jeroan Ikan Patin (Pangasius sp.) dan Campuran Kiambang (Salvinia molesta) secara Anaerob Batch

Jurnal Teknologi Hasil Perikanan Vol 5, No 1 (2016)
Publisher : Jurnal Teknologi Hasil Perikanan

Show Abstract | Original Source | Check in Google Scholar

Abstract

The purposed of this research to utilizing biomass of salvinia and viscera waste mixture of catfish as the biogas resource. The method of this research used experimental method at batch anaerob reactor and absortion carbon atom used NaCl and NaOH solution. The result of this research analysis used describtion method. The observed of parameter included rate analysis and accumulation of biogas production and metana, also parameter at slurry incuded temperature, pH, chemical oxygen demand, total solid, volatile solid and ratio C/N. The conclusion value of pH from this research between scale 1:2 (A1 reactor) and scale 1:1 (A2 reactor) is 7.9 and 7.15. COD in 5700 and 6400. C/N ratio in 5.19 and 5.96. The result indicated the different composition of subtrat slurry from salviana and vistera waste mixture of catfish in scale 1:2 (A1 reactor) produced biogas accumulation and metana the most than A2 reactor.

PENGGUNAAN ALAT PERAGA SISTEM INJEKSI BAHAN BAKAR DIESEL SEBAGAI UPAYA UNTUK MENINGKATKAN HASIL BELAJAR SISWA TEKNIK OTOMOTIF

Jurnal Pendidikan Teknik Mesin Vol 13, No 2 (2013)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar kompetensi memperbaiki sistem injeksi bahan bakar diesel pada siswa kelas XI Teknik Kendaraan Ringan SMK Negeri 1 Tengaran Kabupaten Semarang. Penelitian ini menggunakan desain eksperimen jenis pretest-posttest control group design. Hasil penelitian menunjukan adanya peningkatan hasil belajar kompetensi memperbaiki sistem injeksi bahan bakar diesel dengan nilai rata-rata pretest dan posttest pada kelompok kontrol 58,25 meningkat menjadi 72,88 atau sebesar 25,12%. Sedangkan pada kelompok eksperimen rata-rata hasil belajar yang semula 59,13 meningkat menjadi 78,23 atau sebesar 32,98%, hasil belajar dengan penggunaan alat peraga sistem injeksi bahan bakar diesel berjalan dengan baik karena mengalami peningkatan. Persentase peningkatan hasil belajar dengan keteria pengujian nilai gain yang diperoleh lebih dari 30%, maka peningkatan hasil belajar termasuk dalam kategori sedang. Sehingga dapat disimpulkan bahwa penggunaan alat peraga sistem injeksi bahan bakar diesel pada kompetensi memperbaiki sistem injeksi bahan bakar diesel dapat meningkatkan hasil belajar pada siswa.