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"Initial preparation of sea weed from Krakal beach and Lemah Abang Jepara. The Sea Weed from Krakal beach, Gunung Kidul, and Lemah Abang, Jepara have been prepared. The sea weed was initial prepared by crushed, dryed by freeze dryer, milled using a ball-mill and sieved with unscreened grain size of 100 mesh. The homogenized powder were tested by Laser Particle Sizer Analysette 22, by double preparation and four times measurement for every sample. The grain size of both powder was in the range of 4.623 um to 583.015 um, arange in 31 classes. The smallest class were the particles with size 4.623 – 5.462 um. The second class having the lowest size 5.462 um, the midle size was 5.96 um, and the highest was 6.453 and so on. The largest class has the smallest size 493.445 um, the midles size 538.23 um, and the largest was 583.015 um. The geometric mean diameter of the Sea Weed from Krakal was 135.667 um, and from Lemah Abang 46.053 um respectively. The Krakal Sea Weed's curve showed that the skewness was 0.839, kurtosis 0.950, and Specific Surface Area was 0.08 m² mL-1, and from Lemah Abang the skewness was 1.921, curtosis 7.133, and the specific surface area was 0.23. The curves of cummulative percentage versus particle sizes showed that the eighth curves were relatively identic and close together, showed that the powder were physically homogen, and may be continued to the chemical analysis."

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Fokus disertasi ini adalah menganalisis keberlanjutan kegiatan konservasi air dalam bentuk pemanenan air hujan berkelanjutan beserta instalasi pemanenan air hujan yang dilakukan oleh gerakan komunitas di masyarakat desa. Riset ini didorong karena pertumbuhan penduduk dengan kondisi ketersediaan air sebagai sumber daya esensial yang semakin kritis, ditambah dengan masih sedikitnya kegiatan pemanfaatan air hujan. Pemanfaatan air hujan dengan kegiatan ini cukup sederhana. Apalagi dengan memanfaatkan atap rumah yang sudah ada sebagai area tangkapan air. Aktivitas sosial yang ada di mansyarakat desa serta semakin banyaknya informasi yang berkembang merupakan kekuatan tersendiri dalam pengembangan kegiatan ini berikut pembuatan unit instalasinya. Keberadaan unit instalasi yang ada memiliki dampak tersendiri dari aspek ekologi, ekonomi, dan sosial. Riset ini bertujuan untuk mengkaji peran aktivitas sosial dan pemanfaatan informasi berupa informasi dominan terkait pemanenan air hujan sebagai suatu kekuatan untuk pengembangan kegiatan konservasi air. Riset juga bertujuan untuk mengetahui dampak lebih luas dari penggunaan material-material penyusun instalasi. Aktivitas sosial diukur dengan analisis jalur (path analisys). Peran informasi dominan diukur dengan analisis kualitatif berupa pembobotan berskala. Sedangkan aspek keberlanjutan dianalisis dengan menggunakan metode Life Cycle Sustainabilty Analisys/LCSA), meliputi: Life Cycle Assessment (LCA) untuk mengukur dampak lingkungan, Life Cycle Costing (LCC) untuk mengukur keberlanjutan aspek ekonomi, dan Social Life Cycle Assessment (SLCA) untuk mengukur dampak aspek sosialnya. Riset dilakukan di Desa Sardonoharjo, Provinsi Yogyakarta. Hasil penelitian menunjukkan bahwa keberlanjutan pengembangan pemanenan air hujan oleh gerakan komunitas dapat efektif dengan memanfaatkan peran aktivitas sosial dan penggunaan informasi sebagai kekuatan yang dilakukan secara simultan. Unit instalasi pemanenan air hujan tetap memberikan dampak pada ekosistem dari material penyusunan dengan sumbangsih terbesar dari area tangkapan air hujan (atap rumah). Dampak ekonomi memberikan keberlanjutan selama kurun waktu ±20 tahun dengan nilai manfaat kepada masyarakat pengguna instalasi Rp8,3 juta. Sedangkan dampak sosial berupa terbukanya kesempatan kerja dalam hal pemeliharaan dan penemuan beberapa inovasi dalam pengembangan unit instalasi secara sederhana.

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The focus of this dissertation is to analyze the sustainability of water conservation activities in the form of sustainable rainwater harvesting along with rainwater harvesting installations carried out by community movements in rural communities. This research is encouraged because of population growth with the condition of the availability of water as an increasingly critical critical resource, coupled with the lack of rainwater utilization activities. Utilization of rainwater with this activity is quite simple. Especially by utilizing the roof of an existing house as a water catchment area. The social activities that exist in the village community as well as the growing amount of information are its own strengths in the development of these activities and the creation of the installation unit. The existence of the existing installation unit has its own impact on ecological, economic and social aspects. This research aims to examine the role of social activities and the use of information in the form of dominant information related to rainwater harvesting as a force for the development of water conservation activities. The research also aims to find out the wider impact of the use of the materials making up the installation. Social activity is measured by path analysis. The role of dominant information is measured by qualitative analysis in the form of scale weighting. While the sustainability aspect is analyzed using the Life Cycle Sustainability Analysis (LCSA) method, including: Life Cycle Assessment (LCA) to measure environmental impact, Life Cycle Costing (LCC) to measure the sustainability of economic aspects, and Social Life Cycle Assessment (SLCA) to measure the impact of social aspects. Research was carried out in Sardonoharjo Village, Yogyakarta Province. The results showed that the sustainable development of rainwater harvesting by the community movement could be effective by utilizing the role of social activities and the use of information as a strength carried out simultaneously. The rainwater harvesting installation unit continues to have an impact on the ecosystem of drafting materials with the largest contribution from the rainwater catchment area (roof of the house). The economic impact provides continuity for a period of ±20 years with a value of benefits to the community users of the installation of Rp8.3 million. While the social impact in the form of opening up job opportunities in terms of maintenance and the discovery of several innovations in the development of a simple installation unit.

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"Pada tahun 2019 penduduk Jawa Barat menjadi provinsi terbesar di Indonesiadalam hal jumlah penduduk yang menjadikan alternatif pemukiman akibat darimasuknya industri yang mendorong terjadinya urbanisasi. Kota Bekasi jugamenjadi daerah penyangga Ibukota dan beberapa daerah lainnya. Apartemenmenjadi solusi atas sulitnya lahan untuk pemukiman. Berkurangnya sumber airpermukaan dan eksploitasi air tanah yang berlebihan merupakan faktor dalamsulitnya mencari sumber air yang murah dan mudah didapat. Panen air hujanmenjadi salah satu alternatif suplai air di apartemen. Selain area tangkapan atap dansisi bangunan, area tangkapan sisi balkon bangunan juga memiliki potensi untukmemanen air hujan. Potensi air hujan dapat diketahui dengan analisis hidrologimenggunakan data curah hujan tahunan. Desain di usulkan pada penelitian ini untukarea tangkapan sisi balkon bangunan. Hasil riset diketahui bahwa dengan volumpanen air hujan yang tertinggi dapat memasok 21% kebutuhan air bersih selamasebulan. Estimasi biaya penghematan dengan menggunakan pemanenan air hujanmenurut perhitungan diperkirakan mencapai Rp 35.371.388 per tahun. Dari hasilanalisis investasi di dapatkan nilai perhitungan NPV positif dengan nilai Rp.327.833.808 dengan asumsi lama investasi 30 tahun. Nilai PP yaitu selama 15 tahun1 bulan. Nilai BCR memiliki angka 3,35 dan nilai IRR adalah 7,9% dari faktordiskonto 5%. Analisis sensitivitas menunjukan beberapa skenario kenaikan biayamaterial sebesar 10%, 20% dan 30%. Namun semua analisis investasi masih dikategorikan layak terhadap skenario kenaikan tersebut.

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In 2019 the population of West Java became the largest province in Indonesia

in terms of population which made it an alternative settlement as a result of the

entry of industries that led to urbanization. Bekasi City is also a buffer area for the

capital and several other areas. Apartments are a solution to the difficulty of land

for settlement. Reduced surface water sources and overexploitation of groundwater

are factors in the difficulty of finding cheap and accessible water sources. Rainwater

Harvesting is an alternative water supply in apartments. Apart from the roof

catchment area and the sides of the building, the balcony side catchment area also

has the potential to harvest rainwater. Rainwater potential can be determined by

hydrological analysis using annual rainfall data. The design proposed in this study

is for the balcony side catchment area of the building. The research results show

that with the highest volume of rainwater harvested, it can supply 21% of water

needs for a month. The estimated cost of saving using rainwater harvesting is

estimated at Rp. 35,371,388 per year. From the results of the investment analysis,

the NPV calculation is positive with a value of Rp. 327,833,808 assuming the

investment period is 30 years. The PP value is 15 years and 1 month. The BCR

value has a number of 3.35 and the IRR value is 7.9% from the discount factor of

5%. The sensitivity analysis shows several scenarios of increasing material costs by

10%, 20% and 30%. However, all investment analyzes are still categorized as

feasible under this increasing scenario."

"ABSTRACTGaharu has been traded in East Kalimantan before the Hindu KingdomKutai period. However, the nineteen eighties to nineties was perhaps theglory period for gaharu trade in East Kalimantan. There are only little detailinformation regarding gaharu in East Kalimantan. The information on gaharutrade can only be extracted through anthropological studies on indigenouscommunity conducted by foreigner. Therefore, this study was undertaken togain more information on gaharu trade in East Kalimantan that includedharvest and chain of custody. For the purposes, 1 exporter, 3 middlemen and4 hunters in East Kalimantan were interviewed during the study.Hunter, middlemen, collector and exporter are identified as the 4 actorsthat played in the gaharu trade in East Kalimantan. The gaharu trade is openand does not bind the actors involved. Gaharu has been traded using landtransportation, although in some area sea transportation seems morepractical. Up until now, Samarinda is the center of gaharu trade in EastKalimantan where all big investors are located. Gaharu has been tradedlegally to Jakarta, Singapore and the Middle East. In addition, gaharu been traded to Banjarmasin. However, Gaharu has often been smuggled toMalaysia.In the past five years gaharu production increased significantly alongwith the increasing number of gaharu traders in East Kalimantan. Gaharuharvest is dominantly found in the center of East Kalimantan. Mahakamupstream that covers Kutai Kertanegara and West Kutai is identified as themost targeted location for gaharu hunt in East Kalimantan. The lowest qualitygaharu now dominates the gaharu market in East Kalimantan. It triggered thegaharu oil invention in East Kalimantan"

"ABSTRAKSkripsi ini membahas tentang usaha peningkatan hasil laut melalui budidaya ikan di laut dalam. Fokus bahasannya ialah perancangan alat angkat jala keramba jaring apung laut dalam. Dimana saat ini di Indonesia Keramba Jaring Apung Laut Dalam / KJA Offshore mulai banyak digunakan, namun metode pemanenan masih bersifat konvensional. Di harapkan dengan adanya alat angkat jala keramba jaring apung laut dalam memudahkan pemanenan hasil budidaya dan mengurangi beban operasional. Besar harapan pula rancangan alat ini dapat dimanfaatkan sebesar-besarnya oleh masyarakat.

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ABSTRACTThis thesis discusses about efforts to increase marine products through deep-sea fish farming. The focus of the discussion is to design a lifting equipment mesh cages in deep sea floats. Where at this time in Indonesia the Cage of Deep Sea Floating Nets/KJA Offshore began to be widely used, but the method of harvesting was still conventional. Expected by the existence of lifting equipment mesh cages of floating net in facilitating the harvesting of cultivation products and reducing the operational burden. It is also hoped that the design of this tool can be utilized as much as possible by the community."

"Penelitian ini bertujuan untuk memberikan gambaran persepsi risiko pekerja perawatan dan pemanenandi perkebunan kelapa sawit PT.X menggunakan paradigma psikometri. Penelitian dilakukan terhadap 83 responden pada bulan April-Mei 2015 menggunakan desain cross-sectional, data primer berupa kuesioner. Parameter yang digunakan pada penelitian adalah skala likert dengan nilai 1(sangat tidak setuju)—4 (sangat setuju). Nilai rata-rata masing-masing dari 9 dimensi paradigma psikometri dihitung dengan nilai 1(rendah), 2—3(sedang), 4(baik). Dimensi penerimaan secara sukarela dipersepsikan tinggi, berarti bahwa pekerja mau menerima segala risiko yang ada dipekerjaannya. Dimensi Known to expose of risk,Known to science of risk, dan Chronic-Catastrophic memiliki nilai persepsi yang paling rendah.Hasil penelitian menunjukkan bahwa persepsi risiko K3 tidak dipengaruhi oleh masa kerja, jabatan, tingkat pendidikan dan pelatihan K3.Agar tercipta perilaku berbudaya K3 maka diperlukan komitmen manajemen terkait K3 yang kuat, pelatihan K3 yang aplikatif dan partisipasi dari seluruh pekerja untuk selalu memajukan K3.

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The purpose of this study is to provide an overview of maintenance and harvester risk perception at Palm Oil Plantation in the Pontianak,West Borneo using psychometric paradigm. Research conducted on 83 respondents in the April- May 2015 using cross-sectional design, the primary data is obtained from questionnaire. This study used likert scale as follows : 1 (strongly disagree) -4 (strongly agree). The average value of each of the nine dimensions of psychometric paradigm is determined by the value of 1 (low), 2-3 (moderate), 4 (good). The voluntariness dimension is high, meaning that the workers are willing to accept all the risk in their job activity.Dimensions of Known to expose of risk,Known to science of risk, and Chronic-Catastrophic has the lowest perceived value. Research shows the occupational health and safety risk perception not associated to work period, work level, education level and OHS training. Good management commitment related to occupational health and safety, applicative OHS training and workers participation are needed to achieve health and safety behavior."

"Dalam penggunaan kandungan esensial mikroalga Chlorella vulgaris sebagai sumber energi terbarukan dan suplemen makanan, terdapat kendala dalam hal pemanenan (harvesting) mikroalga itu sendiri. Ukuran dan densitas yang kecil menyebabkan mikroalga sulit untuk dipanen. Pada penelitian ini, mikroalga dipanen menggunakan dua metode pemanenan, yaitu flokulasi dan filtrasi semi¬kontinu dalam reaktor 18 L selama 204 jam. Penggunaan filtrasi semi-kontinu meningkatkan biomassa sebesar 100% dibandingkan flokulasi. Metode flokulasi yang dilakukan diakhir masa kultivasi tidak menaikkan jumlah biomassa, namun dapat mempercepat waktu pengendapan biomassa. Adanya NaOH sebagai flokulan pada pH 11 tidak menyebabkan terjadi perubahan nutrisi mikroalga secara signifikan dibandingkan dengan metode filtrasi semi-kontinu dan preculture. Secara keseluruhan kandungan esensial yang dihasilkan oleh metode flokulasi, filtrasi semi-kontinu, dan preculture secara berurutan adalah: lipid 36,72; 35,84; 37,69 % berat kering, protein 37,79; 38,50; 36,63 % berat kering, beta karoten 0,2517; 0,2486; 0,1246 % berat kering, dan klorofil 0,8422; 0,6253; 0,4636 % berat kering.

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In the use of essential content of Chlorella vulgaris microalgae as renewable energy sources and food supplements, there are constraints in terms of harvesting microalgae itself. Its small size and density cause it difficult to be harvested. In this study, microalgae are harvested using two methods of harvesting, i.e flocculation and semi-continuous filtration in a 18 L reactor for 204 hours. Semi-continuous filtration can increase biomass by 100%. Flocculation method by the end of the period of cultivation did not increase the amount of biomass, but it can accelerate settling time of biomass. The presence of NaOH as a flocculant at pH 11 does not cause nutritional changes of microalgae significantly compared with filtration method and preculture. Overall, the essential content produced by the method of flocculation, semi-continuous filtration, and preculture in sequence are: lipids 36.72; 35.84; 37.69 % dry weight, protein 37.79; 38.50; 36.63 % dry weight, beta carotene 0.2517; 0.2486; 0.1246 % dry weight, and chlorophyll 0.8422; 0.6253; 0.4636% dry weight."