Articles

PENGELOLAAN MANGROVE SEBAGAI SALAH SATU KEANEKARAGAMAN BAHAN PANGAN Subekti, Sri
Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Vol 1, No 1 (2012): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 3 2012
Publisher : Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik

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Abstract

Mangrove merupakan vegetasi hutan yang tumbuh di antara pasang surut, tetapi juga dapat hidup pada pantai karang, pada dataran koral mati yang diatasnya ditimbuni selaput tipis pasir atau ditimbuni lumpur atau pantai berlumpur. Berbagai jenis mangrove terutama padabuahnya dapat digunakan sebagai bahan baku olahan pangan yang sat ini mulai berkembangdengan pesat. Mangrove jenis Pedada (Sonneratia), Brayo (Avicennia), Bakau (Rhizophora) dan Tancang (Bruguiera) menjadi sirup, onde-onde, klepon, resoles, kolak, dodol, bolu dan panganan lezat lainnya. Untuk mendukung keberlanjutan kawasan mangrove diperlukan suatuupaua pengelolaan mangrove yang berkelanjutan sehingga nantinya dapat digunakan oleh generasi sekarang dan generasi yang akan datang, Perlu juga diupayakan pengembangan danpenataan tata hijau di kawasan pesisir dengan pembangunan Green Belt (Sabuk Hijau).   Kata kunci: mangrove, buah, olahan pangan, pengelolaan
Perubahan Sosial Ekonomi Petani Agroforestri Berbasis Kopi di Kabupaten Jember Jawa Timur Zahro, Munailatis; Subekti, Sri; Widjayanthi, Lenny
JKMP (Jurnal Kebijakan dan Manajemen Publik) Vol 5, No 2 (2017): September
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/jkmp.v5i2.1313

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This study aimed to explain the changing both in social and economic aspects of farmers as a result of forest conversion process to agroforestry system in Harjomulyo Village, Jember Regency. This study used qualitative research. The information gained from informans who were selected purposively through snowball sampling. Observation, interview and documentational study were methods which were used to collect information. Triangulation technique also used in this study to check the validity of information. This study used interactive model of Miles & Huberman which consists of data reduction to conlusion. The result of this study showed that socio change occured  farmer coorperation with Perhutani. While in economic change showed that economic condition increase, saving insurance credit, and availability tuition fees for children.
UNTILIZATION OF MORINGA OLEIFERA LEAF EXTRACT ON DECREASING INFESTATION OF ARGULUS JAPONICUS IN GOLDFISH (CARASSIUS AURATUS) Setyawati, Febri; Kismiyati, Kismiyati; Subekti, Sri
AQUASAINS Vol 8, No 1 (2019)
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v8i1.p769-774

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Abstrak Goldfish (Carassius auratus) is one of the fishes that can be infected by parasites. Commonly, this fish is often attacked by Argulus japonicus ectoparasites. Control of infestation in A. japonicus can be done by utilizing one of the natural ingredients, Moringa oleifera leaf extract, which contains of alkaloids, tannins, saponins and flavonoids. This study aims to determine the effect of M. oleifera leaf extract in reducing the infestation of A. japonicus and the optimal concentration of M. oleifera leaf extract in reducing the infestation of A. japonicus in goldfish (C. auratus). This study used a completely randomized design (CRD) with treatments namely control, 600 ppm, 700 ppm, 800 ppm and 900 ppm with four times of replication. The main parameter is the percentage decrease in infestation of A. japonicus. The results of the research data were analyzed by using ANOVA and followed with the Ducan Multiple Range Test. The results showed that Moringa leaf extract could reduce the infestation of A. japonicus. The optimal concentration of Moringa leaf extract in reducing the infestation of A. japonicus was obtained from a concentration of 700 ppm.
PENGOLAHAN LIMBAH CAIR TAHU MENJADI BIOGAS SEBAGAI BAHAN BAKAR ALTERNATIF Subekti, Sri
Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Vol 1, No 1 (2011): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 2 2011
Publisher : Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik

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Tahu merupakan makanan tradisional sebagian besar masyarakat di Indonesia, yang digemari hampir seluruh lapisan masyarakat. Selain mengandung gizi yang baik, pembuatan tahu juga relatif murah dan sederhana. Rasanya enak serta harganya terjangkau oleh seluruh lapisan masyarakat. Industri tahu dalam proses pengolahannya menghasilkan limbah, baik limbah padat maupun cair. Limbah padat dihasilkan dari proses penyaringan dan penggumpalan, limbah ini kebanyakan oleh pengrajin dijual dan diolah menjadi tempe gembus, kerupuk ampas tahu, pakan ternak, dan diolah menjadi tepung ampas tahu yang akan dijadikan bahan dasar pembuatan roti kering dan cake. Sedangkan limbah cairnya dihasilkan dari proses pencucian, perebusan, pengepresan dan pencetakan tahu, oleh karena itu limbah cair yang dihasilkan sangat tinggi. Limbah cair tahu dengan karakteristik mengandung bahan organik tinggi dan kadar BOD, COD yang cukup tinggi pula, jika langsung dibuang ke badan air, jelas sekali akan menurunkan daya dukung lingkungan. Sehingga industri tahu memerlukan suatu pengolahan limbah yang bertujuan untuk mengurangi resiko beban pencemaran yang ada. Mengingat industri tahu merupakan industri dengan skala kecil, maka membutuhkan instalasi pengolahan limbah yang alat-alatnya sederhana, biaya operasionalnya murah, memiliki nilai ekonomis dan ramah lingkungan. Pengolahan limbah tahu harus dikelola dengan baik dan dipelihara secara rutin. Dari berbagai teknologi pengolahan limbah yang sudah ada, maka akan dilakukan kajian untuk mengetahui teknologi pengolahan limbah tahu yang efektif dan efisien beserta kelebihan dan kekurangannya, dan dampaknya terhadap masyarakat dan lingkungan. Indonesia memiliki potensi kekayaan alam yang sangat melimpah untuk menghasilkan sumber energi alternatif. Oleh karena itu, pemanfaatan sumber-sumber energi alternatif yang terbaharukan dan ramah lingkungan menjadi pilihan. Salah satu energi terbaharukan adalah biogas, biogas memiliki peluang yang besar dalam pengembangannya. Kata kunci: Tahu, Limbah Cair Tahu,  Biogas, Bahan Bakar Alternatif
PENGELOLAAN SAMPAH RUMAH TANGGA 3R BERBASIS MASYARAKAT Subekti, Sri
Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Vol 1, No 1 (2010): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 1 2010
Publisher : Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik

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Abstract

Peningkatan jumlah penduduk dan laju pertumbuhan industry akan memberikan dampak pada jumlah sampah yang dihasilkan antara lain sampah plastik, kertas, produk kemasan yang mengandung B3 (Bahan Beracun Berbahaya). Jumlah dan jenis sampah, sangat tergantung dari gaya hidup dan jenis material yang kita konsumsi semakin meningkat perekonomian dalam  rumah tangga maka semakin bervariasi jumlah sampah yang dihasilkan. UU No. 18 /2008 tentang pengelolaan sampah, Pengelolaan Sampah Terpadu Berbasis Masyarakat adalah suatu pendekatan pengelolaan sampah yang didasarkan pada kebutuhan dan permintaan masyarakat, direncanakan, dilaksanakan (jika feasible), dikontrol dan dievaluasi bersama masyarakat. Pemerintah dan lembaga lainnya sebagai motivator dan fasilitator. Fungsi motivator adalah memberikan dorongan agar masyarakat siap memikirkan dan mencari jalan keluar terhadap persoalan sampah yang mereka hadapi. Tetapi jika masyarakat belum siap, maka fungsi pemerintah atau lembaga lain adalah menyiapkan terlebih dahulu. Misalnya dengan melakukan pelatihan, study banding dan memperlihatkan contoh – contoh program yang sukses dan lain – lain. Kata Kunci: Sampah, Pengelolaan, 3R, Masyarakat. Pengelolaan Sampah Rumah Tangga 3R Berbasis Masyarakat
KORELASI KONFLIK INTRA ORGANISASI DAN KOMPENSASI PERUSAHAAN DENGAN PRESTASI KERJA KARYAWAN Subekti, Sri; Sulistyaningrum Indrawati, Cicilia Dyah; Widodo, Jumiyanto
Jurnal Informasi dan Komunikasi Administrasi Perkantoran Vol 2, No 1 (2013): Juni
Publisher : Pendidikan Administrasi Perkantoran FKIP Univesitas Sebelas Maret

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The objectives of research are: (1) to find out whether or not there is a significant positive correlation between internal organization conflicts and work performance of the PT. Telkom Surakarta?s employees, (2) to find out whether or not there is a significant positive correlation between company compensation and work performance of the PT. Telkom Surakarta?s employees, and (3) to find out whether or not there is a significant positive correlation between internal organization conflict and company compensation with work performance of the PT. Telkom Surakarta?s employees.This study employed a quantitative research approach with a correlational descriptive method. The population of research was all employees of PT. Telkom Surakarta Office consisting of 96 employees. The sampling technique used in this research was random sampling one, taking 58 employees or 60% of population number. Techniques of collecting data used were questionnaire and documentation. The data analysis was done using a multiple linear regression analysis technique.Considering the result of research, it could be concluded that: (1) there was a positive significant correlation of Internal Organization Conflict variable (X1) and the Employee Work Performance in Human Resource (HR) department of PT. Telkom Surakarta, (2) there was a positive significant correlation of Company compensation variable (X2) and the Employee Work Performance in Human Resource (HR) department of PT. Telkom Surakarta, and (3) there was a positive significant correlation between Internal Organization Conflict (X1) and Company compensation (X2) variables simultaneously with the Employee Work Performance in Human Resource (HR) department of PT. Telkom Surakarta.The relative contribution of Internal Organizational Conflict (X1) to the employee work performance (Y) was 42.61%, the relative contribution of company compensation (X2) to the employee work performance (Y) was 57.39%, the effective contribution of Internal Organizational Conflict (X1) to the employee work performance (Y) was 19.70%, the effective contribution of company compensation (X2) to the employee work performance (Y) was 26.54%.Keywords: Internal Conflict Compensation, Employee Performance.
PENGELOLAAN EKOSISTEM GAMBUT SEBAGAI UPAYA MITIGASI PERUBAHAN IKLIM DI PROVINSI KALIMANTAN SELATAN Sudrajat, Agus Sarwo Edy; Subekti, Sri
Jurnal Planologi Vol 16, No 2 (2019): Oktober, 2019. Thema Pengelolaan Lahan dan Wisata
Publisher : Universitas Islam Sultan Agung Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (257.611 KB) | DOI: 10.30659/jpsa.v16i2.4459

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ABSTRACKPeat ecosystems are one of the potential natural resources that are very rich in biodiversity. Global warming is a process of increasing the temperature of the earth. One of the effects of global warming is changing climate characterized by changes in temperature and rainfall. One of the impacts of this is the occurrence of peatland fires, especially in the dry season. Based on this, it is necessary to do management of peatlands as an effort to mitigate climate change and maintain unspoiled peatland areas. Result from this text is knowing how to manage peat ecosystem on South Kalimantan, so if the peat ecosystem can be protect and then the climate be controlled.Keywords: Peatlands, Mitigation, Management, Climate Change ABSTRAKEkosistem gambut menjadi salah satu potensi sumber daya alam yang melimpah dengan keanekaragaman hayati. Pemanasan global disebut juga sebagai suatu proses kenaikan temperature di bumi, dimana efek dari pemanasan global ini yaitu perubahan iklim dengan ditandai adanya perubahan suhu dan curah hujan. Salah satu dampak dari hal tersebut adalah terjadinya kebakaran lahan gambut khususnya pada musim kemarau. Berdasarkan hal tersebut, maka perlu dilakukannya pengelolaan ekosistem lahan gambut sebagai upaya untuk mitigasi perubahan iklim dan mempertahankan areal lahan gambut yang masih alami. Hasil akhir dari tulisan ini adalah mengetahui cara pengelolaan ekosistem gambut di Kalimantan Selatan, sehingga apabila ekosistem gambut terjaga maka perubahan iklim dapat dikendalikan.Kata Kunci: Lahan Gambut, Mitigasi, Pengelolaan, Perubahan Iklim
ZERO WASTE CONCEPT OF STRENGTHENING AND FOOD SAFETY RESULTS OF LIBUO COMMUNITY FISHERIES RESIDENTS OF DUNGINGI DISTRICT GORONTALO CITY Subekti, Sri; Tjahjaningsih, Wahju; Pujiastuti, Dwi Yuli; Sari, Putri Desi Wulan
Kontribusia (Research Dissemination for Community Development) Vol 3 No 1 (2020)
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30587/kontribusia.v3i1.1088

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The potential of fishery resources in Gorontalo is quite abundant because of its strategic geographical position bordering Tomini bay. Gorontalo, especially in  the Dungingi District, is one of the regions with promising potential fisheries resources where fishery application activities are not only focused on fish cultivation but also processing fishery products. However, people's understanding of fish processing that can only be obtained from their meat makes the community's income in the Libuo Village, Dungingi District Gorontalo City tend to be unstable. The Libuo community as fishery product processing actors need to be given an understanding of the potential and diversification of fishery products that can be produced from by-products that can be obtained from bones, scales, stomach contents, heads, and fish skins so that the application of zero waste can be implemented. Also, as an effort to increase public understanding related to the shelf life of fishery products which tends to be fast, the use of carrageenan as an alternative to edible coatings needs to be introduced to the community as a form of food safety of fishery products. Thus the benefits will be gained from increasing the added value of fisheries and a better level of food safety.
KOMPARASI KEEFEKTIFAN PENDEKATAN OPEN-ENDED DAN GI DITINJAU DARI KOMUNIKASI, PEMECAHAN MASALAH MATEMATIS DAN MOTIVASI BELAJAR Subekti, Sri
Pythagoras: Jurnal Pendidikan Matematika Vol 8, No 2: December 2013
Publisher : Department of Mathematics Education, Faculty of Mathematics and Natural Sciences, UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/pg.v8i2.8950

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Penelitian ini bertujuan untuk mendeskripsikan keefektifan pendekatan open ended dan group investigation serta perbedaan keefektifan antara kedua pendekatan tersebut, ditinjau dari  komunikasi dan pemecahan masalah matematis, serta motivasi belajar matematika siswa. Jenis penelitian ini adalah quasi experiment dengan desain pretest-posttest with nonequivalent group design. Populasinya adalah seluruh siswa kelas VIII SMP Negeri 1 Galur, Kulon Progo, DIY tahun pelajaran 2012/2013. Dua kelas diambil sebagai sampel, kemudian secara acak ditentukan kelas dengan perlakuan pendekatan open ended dan group investigation. Data dikumpulkan dengan tes dan non tes, dianalisa dengan one sample t-test untuk menentukan keefektifan, Hotteling t?s Trace dan uji t univariat dengan kriteria Bonferroni untuk menguji perbedaan keefektifan antara kedua pendekatan tersebut. Hasil penelitian menunjukkan bahwa pendekatan open ended dan group investigation efektif, pendekatan open ended lebih efektif dibanding pendekatan group investigation, serta pendekatan group investigation lebih efektif dibanding pendekatan open ended ditinjau dari komunikasi matematis dan motivasi belajar matematika siswa.Kata Kunci: open-ended, group investigation, komunikasi matematis, pemecahan masalah, motivasi belajar. The Effectiveness Comparison of the Open-Ended and GI Approaches Viewed from Mathematical Communicative and Problem Solving and Learning Motivation AbstractThis study aimed to describe the effectiveness of the open-ended and the group investigation approaches and the effectiveness differences between the two approaches viewed from the mathematical communicative & problem-solving  and the mathematics learning motivation  on  the basic competency of polyhedral. This research was a quasi experiment using pretest-posttest with nonequivalent group design. The population was all eighth grade students of SMP Negeri 1 Galur, Kulon Progo, Yogyakarta in 2012/2013. Two classes were taken randomly as sample, then the classes were determined randomly using the open-ended and group investigation approaches. The data was collected using test and non-test, analyzed using one sample t-test to determine the effectiveness and also analyzed using Hotteling t's Trace & t-test univariate using Bonferroni criteria to determine the effectiveness difference between the two approaches. The results indicated that the open-ended and group investigation approaches were effective, the open-ended was more effective than the group investigation, and the group investigation was more effective than open ended viewed from the mathematical communicative and mathematics learning motivation.Keywords: open-ended, group investigation, communication, problem solving, mathematics learning motivation
Respon Imun Humoral Kelinci dalam Membentuk Antibodi Anti-Toxocara cati Humoral Immune Response of Rabbit to Antibody Production Against Toxocara cati ., Kusnoto; Subekti, Sri; ., Suwarno
Media Kedokteran Hewan Vol 21, No 3 (2005): Media Kedokteran Hewan
Publisher : Media Kedokteran Hewan

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Abstract

The dermatitis-test and indirect-ELISA were the diagnostic technique that often used to diagnose toxocariasis. Therefore, both of these techniques were not efficient because they need a long time and have low specificity, especially if crude protein was used as an antigen. Double antibody sandwich-ELISA was used to develop ELISA technique to get the high sensitivity and specificity tests. For this technique needed a polyclonal antibody as coating.  This research used nine males Angora rabbit were divided into three groups. The first group was injected by adjuvant as a control. The second were injected by L2 immunogen of T. cati. The third were injected by the adult worm immunogen. There were two steps of injections, as follow: initiation step with CFA added to homogenate and the second step was booster immunization that was done two weeks after initiation, with IFA added to homogenate. The booster was done three times with two weeks interval. Sera was taken two weeks after the final booster. Antibody titers were 0 for the control, 40,960 for L2 immunization, and 20,480 for T. cati adult immunization. The positive optical density was 0.540 ± 0.050 sera with L2 homogenate immunization that statistically did not significantly difference (p>0.05) with T. cati adult homogenate immunization, was 0.528 ± 0.034.Therefore both of these results showed high significantly difference (p<0.01) with the control, was 0.208±0.004. Key words: polyclonal antibody, toxocariasis, sensitivity, specificity