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"The lakes in urban megacity Jakarta, called as ?setu or situ? by the local people, play a central role in integrated water resources management. Despite its pivotal role in maintaining the balance of urban water system, they have not received sufficient attention. Rapid urban development in a very distinct urban watershed type of lake?s surroundings has impacted on the water quantity and quality of urban lakes in megacity Jakarta. Chronic problems faced by downstream area in megacity Jakarta such as flash floods in the rainy season and water scarcity in the dry season have indicated that the lakes have not been managed and functioned well. Human and nature disturbances such as shoreline encroachment, shoreline erosion, garbage dump and inflow from untreated sewage and urban runoff have polluted the lake water and reduced its volume capacity. Nearly half of the existing lakes have reduced from 10 to > 50% of its water volume capacity due to lake area shrinkage, siltation and even excessive growth ofinvasive macrophytes. The lakes are mostly in disturbed to damaged environmental conditions. Lakes in urban and rural villages have less in water quantity and higher solids, organic matter, nutrients and even fecal bacteria concentrations than the lakes in planned residential, high-rise residential and industrial areas types of urban surroundings. As the lakes in the urban village and industrial area, elevated toxic metal concentrations have become public concern due to lake hygiene problems. Elevated nutrient concentrations have caused the lake eutrophication, where some lakes have suffered from excessive macrophyte coverage, algal bloom even toxic cyanobacterial bloom. The urban lakes in megacity Jakarta constantly have been degrading physically and ecologically affecting its water quantity and quality which is increasing the threat to human?s health and impact future human?s resilience in urban megacity Jakarta."

"Operator haul truck merupakan salah satu pekerjaan yang berisiko tinggi untuk mengalami kelelahan kerja fatigue disebabkan oleh penerapan shift kerja, gangguan kuantitas dan kualitas tidur, serta pengaruh berbagai faktor lainnya. Tujuan dari penelitian ini adalah untuk mengetahui hubungan antara shift kerja, kuantitas dan kualitas tidur, serta faktor-faktor yang berhubungan dengan keluhan fatigue pada operator haul truck. Desain studi cross-sectional digunakan dalam penelitian ini dengan menggunakan kuisioner Fastigue Assessment Scale FAS, pengukuran tingkat stress menggunakan alat cocorometer, serta pengukuran kuantitas dan kualitas tidur menggunakan alat fitbit di antara 196 responden laki-laki yang bekerja sebagai operator haul truck. Hasil penelitian menunjukkan terdapat hubungan yang signifikan antara kuantitas tidur OR = 3,222, p = 0,028 dan kualitas tidur OR = 2,800, p = 0,025 dengan kelelahan, sedangkan shift kerja tidak memiliki hubungan yang signifukan dengan kelelahan. Faktor risiko lain yang juga memiliki hubungan signifikan dengan kelelahan pada operator haul truck di PT X adalah beban mental OR = 2,296, p = 0,027 , lingkungan kerja OR = 2,400, p = 0,014, monotoni pekerjaan OR = 3,371, p = 0,002, usia OR = 2,708, p = 0,005, dan sleep hygiene OR = 3,840, p = 0,001.

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Haul truck operator is one of the high risk occupations in experiencing fatigue caused by the implementation of shift work, sleep quantity and quality disturbance, other related factors. The objective of this study was to analyze the relationship between shift work, quantity and quality of sleep, and other factors associated with fatigue on the haul truck operator. A cross sectional study was conducted in this study using questionnaires of Fatigue Assessment Scale FAS, measurement of stress using cocorometer, and measurement of sleep quantity and quality using fitbit among 196 male respondents who work as haul truck operator. The result of this study shown there is a significant correlation between the quantity of sleep OR 3,222, p 0,028 and fatigue, also between the quality of sleep OR 2,800, p 0.025 and fatigue. However, shift work has no significant correlation with fatigue. Other factors, including mental workload OR 2,296, p 0,027, work environment OR 2,400, p 0,014, monotonous work OR 3,371, p 0,002, age OR 2,708, p 0,005, and sleep hygiene OR 3,840, p 0,001 also have significant correlation with operator fatigue in PT X. "

"Penelitian dan kajian mengenai sleep deprivation selama ini baru dilihat berdasarkan pernyataan dari responden penelitian, korban maupun saksi mata yang sifatnya sangat subjektif. Tingginya angka kecelakaan yang muncul akibat dari sleep deprivation dan sulitnya mencari data yang objektif mengenai kuantitas dan kualitas tidur yang sebenarnya dialami oleh pekerja, khususnya pekerja shift operator hauling truck masih menjadi masalah yang besar, khususnya di bidang keilmuan K3. Penelitian ini merupakan cross sectional study. Variabel dari penelitian ini adalah kuantitas tidur, kualitas tidur, salivary alpha amylase, tekanan darah, denyut nadi, kadar oksigen dalam darah, temperatur tubuh, karakteristik individu, sleep hygiene dan beban kerja. Penelitian dilakukan selama 1 bulan di perusahaan tambang di Indonesia. Secara umum, rata-rata durasi tidur versi Fitbit pada operator hauling truck dengan pola 2 shift adalah sebesar 149 menit atau 2 jam 29 menit sedangkan pada pola 3 shift adalah sebesar 182 menit atau 3 jam 8 menit. Kualitas tidur versi Fitbit pada operator hauling truck dengan pola 2 shift adalah sebesar 13 pada REM, 38 pada light sleep dan 12.7 pada deep sleep. Sedangkan pada pola 3 shift adalah sebesar 14.2 pada REM, 44.7 pada light sleep dan 13.1 pada deep sleep.

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The study of sleep deprivation has only recently been seen based on statements from research respondents, victims and eyewitnesses who are very subjective. The high number of accidents arising from sleep deprivation and the difficulty of finding objective data on the actual quantity and quality of sleep experienced by workers, especially shift operator hauling truck workers is still a big problem, especially in the field of OHS science. This is a cross sectional study. The variables of this study are quantity of sleep, quality of sleep, salivary alpha amylase, blood pressure, heart rate, blood oxygen levels, body temperature, sleep hygiene, individual characteristics and workload. Research conducted for 1 month in mining company in Indonesia. The average sleep duration of Fitbit on hauling truck operator with 2 shift pattern is 149 minutes or 2 hours 29 minutes while in 3 shift pattern is 182 minutes or 3 hours 8 minutes. Quality of sleep on hauling truck operator with 2 shift pattern is 13 in REM, 38 in light sleep and 12.7 in deep sleep. While the pattern of 3 shifts is 14.2 in REM, 44.7 in light sleep and 13.1 in deep sleep."

"This study of bibliometric and topic distribution of special collection of STAIN Al Fatah Jayapura library covered scientific books written by lecturers, research report, articles of jabal hikmah journal"