Sistem Monitoring Suhu dan Kelembapan secara Nirkabel pada Budidaya Tanaman Hidroponik

Penelitian ini membahas sistem monitoring suhu dan kelembapan secara nirkabel dengan Xbee berbasis mikrokontroler yang dilakukan di tempat budidaya tanaman hidroponik. Mikrokontroler berfungsi sebagai pengontrol rangkaian elektronik yang dapat menyimpan program. Xbee berfungsi sebagai alat komunikasi nirkabel yang beroperasi pada frekuensi 2,4 Ghz dengan jarak jangkau mencapai 1.500 meter. Pada perancangan ini terdapat dua node, yaitu node pengirim dan node penerima. Node pengirim terdiri dari modul Arduino sebagai pengendali yang dihubungkan dengan sensor DHT11 sebagai masukan dan Xbee sebagai pengirim. Node penerima terdiri dari Xbee penerima yang dihubungkan pada modul Arduino sebagai pengolah data dan LCD untuk menampilkan data. Pada penelitian ini didapat hasil perbandingan sensor DHT11 dengan alat ukur Thermo-Hygro yaitu rata-rata error suhu 0,75℃ dan kelembapan 3%. Hasil pengujian empat unit sensor DHT11 di luar ruangan didapat nilai rata-rata suhu sebesar 28,94℃ dan kelembapan sebesar 59,6% dengan jarak jangkau Xbee mencapai 240 meter, sedangkan nilai rata-rata suhu dan kelembapan hasil pengujian di dalam ruangan yaitu 29,14℃ dan 58,86% dengan jarak jangkau Xbee mencapai 70 meter

The Conduct of Mothers as Users of Milk Bottles and the Incidence of Diarrhea in Infants

Diarrheal disease is still one of the major diseases in public health problems in Indonesia because of its high incidence and mortality. Almost all cases of acute diarrhea are caused by bacterial infection, the most frequent of which is diarrhea, an infection of the bacterium Escherichia coli (E. coli). These bacteria enter the human body through the hands or through tools such as bottles, pacifiers, thermometers and eating utensils contaminated by the feces of patients or carriers. The purpose of this study is to determine the correlation between the conduct of mothers as users of milk bottles for their infants in Sub-District Kayuringin South Bekasi Jaya, Bekasi District in 2008. A total of 160 persons made up the sample of mothers who participated in this study, which centered on the ways in which the bottles used for the infants were cleaned and the milk prepared. The results of the study showed that there was no correlation between the conduct of the mothers and the presence of E. coli. The result of the study implies that there are other factors that may be leading to the occurrence of diarrhea, such as environmental and individual health factors, specifically those related to hygiene, socio-cultural factors, nutritional factors, and social factors

Audit Pengelolaan Layanan Teknologi Informasi Berdasarkan ITIL pada IT Marketing & Trading (M&T) PT. Pertamina (Persero) Marketing Operation Region V Surabaya

IT Marketing & Trading (M&T) PT. Pertamina (Persero) Marketing Operation Region V Surabaya is part of the operational functions of the Corporate Shared Services (CSS) PT. Pertamina (Persero) in the field of Information Technology (IT). Based on the survey results of the services performed by CSS PT. Pertamina (Persero) in the business units and subsidiaries in 2012, primarily for IT M&T PT. Pertamina (Persero) Marketing Operation Region V Surabaya showed a gap between the perceived to the service user expectations with the value -0.73 and -0.68 in the 1st and 2nd semester of 2012. The survey results showed that the quality of IT service management is sufficient but necessary anticipatory efforts to prevent a worse condition.To identify the factors contributing to the gap between perceived services to the user expectations of IT M&T PT. Pertamina (Persero) Marketing Operation Region V Surabaya, it is necessary to audit the management of IT services based on ITSM standard, namely the Information Technology Infrastructure Library (ITIL). Results of IT service management audits that have been conducted show that the cause of the gap is the management has not fully ensure compliance with service management procedures established by the company. The findings and recommendations of the audit can be used to improve the operational performance of service

Apakah Prostitusi di Indonesia Dapat Dihilangkan?

Penelitian ini bertujuan mengidentifikasi motivasi individu untuk meninggalkan prostitusi di Indonesia. Penelitian menganalisis pengaruh kepribadian terhadap niat meninggalkan prostitusi yang dimoderasi umur, karena kepribadian sebagai variabel yang mempengaruhi niat meninggalkan prostitusi dan umur sebagai variabel moderasi belum terjelaskan dalam penelitian sebelumnya. Pengumpulan data dilakukan dengan metode survei menggunakan kuesioner. Sampel penelitian sebanyak 100 responden, dan analisis data menggunakan SEM. Hipotesis penelitian bahwa niat meninggalkan prostitusi dapat diprediksi melalui ciri-ciri kepribadian (conscientiousness dan extraversion), dan tidak dapat diprediksi melalui ciri-ciri kepribadian (openess, agreeableness, dan neurotcism), sebelum dimoderasi umur. Setelah dimoderasi umur, niat meninggalkan prostitusi pada kelompok umur muda, niat meninggalkan prostitusi tidak dapat diprediksi oleh ciri-ciri kepribadian (openess, agreeableness, neurotcism, conscientiousness dan extraversion). Pada kelompok umur tua, niat meninggalkan prostitusi dapat diprediksi melalui ciri-ciri kepribadian (openess, agreeableness, neuroticism, conscientiousness dan extraversion)

Complete Rumen Modifier Supplementation in Corn Cob Silage Basal Diet of Lamb Reduces Methane Emission

Feeding animal with fibrous materials such as corn cob will emit methane. Complete rumen modifier (CRM) is an improved feed additive comprised a mixture of Sapindus rarak, sesbania, albizia leaves and minerals that functions as a methane inhibitor. The study aimed to determine the effect of CRM supplementation on the feed intake, nutrient digestibility, rumen fermentation, methane emission and growth of lambs. The experiment was designed in a complete randomized block, four levels of CRM (0%, 1%, 2%, and 3%), six group of 24 male lambs per treatment based on the body weight. Basal diet used was corn cob silage ad libitum and concentrate (500 g/day) as a supplement. The results showed that CRM supplementation did not affect feed consumption and average daily gain, but significantly decreased the dry matter, as well as organic matter and protein digestibility. The neutral detergent fiber (NDF) and acid detergent fiber (ADF) digestibility linearly decreased with increasing level of CRM. Ruminal pH, ammonia concentration and volatile fatty acid (VFA) concentration were not affected by the CRM supplementation. Methane production expressed in kJ/MJ gross energy (GE) or digestible energy (DE) intake significantly decreased by 32% at the 2–3% CRM supplementation and reduced by 39% when methane production was expressed in g/kg digested NDF. It can be concluded that 2% CRM supplementation in the corn cob basal diet did not affect nutrient intake and growth rate of the lamb, as well as rumen fermentation. The study suggests that CRM is an environmentally friendly feed additive for lam

Pengaruh Pemilihan Kondisi Batas, Langkah Ruang, Langkah Waktu Dan Koefisien Difusi Pada Model Difusi

Diffusion is one of the important processes involved in pollutant transport. In this study, diffusion equation and its performance were investigated through hypothetical thermal diffusion model. Various boundary conditions, time step, space step, and diffusion coefficients were applied in the model, Result of this study shows that diffusion process will last faster at higher diffusion coefficient. Moreover, the use of free radiation boundary condition type causes the variables at the boundary will remain, that is contrary to that of reflective and partly reflective boundary condition. In addition, truncation error can be minimized if D(t/x2)=0,

Improving Growth and Carcass Production of Rabbit by Utilization of Curcuma Xanthorrhiza Roxb on Ration

The research aimed to study the improvement of growth and carcass production of rabbits through the use of temulawak (Curcuma xanthorrhiza Roxb) on ration. The materials used were 25 heads of male rabbits of New Zealand White breed. A Randomized Completely Block Design was used with five treatments, which were kinds of diet based on Curcuma xanthorrhiza Roxb levels. Body weights were treated as blocks. Variables measured consisted of dry matter consumption, growth (body weight gain) and carcass production (carcass weight). Data was analysis using Multivariate Analysis. Results revealed that the highest feed\u27s dry matter consumption was in C3 (135.42 g/head/day), the lowest was in C0 (93.23 g/head/day). The C3, C2, and C4 treatments were significantly difference (P<0.05) to C0. The C2, C3 and C1 were significantly difference (P<0.05) to C0. The highest body weight gain (18.85 g/head/day) was in C2, and the lowest were in C0 (12.71 g/head/day), and the highest carcass weight (989 g) based on slaughter weight was in C3, and the lowest (711 g) was in C0. (Animal Production 8(3): 190-195 (2006

Korelasi Timbal dalam Darah dan Tingkat Kecerdasan (Majemuk) Siswa Sekolah Dasar di Sekitar Peleburan Aki Bekas di Kabupaten Tangerang dan Kabupaten Lamongan

Pajanan timbal di dunia diperkirakan sebesar 0,6% penyebab penyakit global dengan proporsi terbanyak di negara- negara berkembang. Industri peleburan aki bekas, saat ini, menjadi perhatian para ahli kesehatan dan lingkungan karena potensinya sebagai sumber pencemar timbal. Racun timbal dalam tubuh akan merusak sistem saraf dan mengakibatkan penurunan Intelegence Quotient (IQ), terutama pada anak-anak karena masih diusia tumbuh kembang otak. Kadar timbal dalam darah merupakan indikator yang paling baik untuk menunjukkan current exposure. Penelitian ini bertujuan mengetahui hubungan kadar timbal dalam darah terhadap tingkat kecerdasan (majemuk) siswa sekolah dasar menggunakan rancangan studi cross sectional. Kecerdasan majemuk yang diukur adalah kecerdasan verbal dan kecerdasan logis-matematis. Sebanyak 60 siswa MI Baitussaa'adah di Kabupaten Tangerang dan 69 siswa SDN Bulutengger di Kabupaten Lamongan diukur kadar timbal darah dan laporan prestasi belajarnya. Ditemukan kadar timbal dalam darah anak di Kabupaten Tangerang dengan rerata 39,18 μg/dl (100% melebihi batas normal CDC 1997) dan rerata 11,76 μg/dl (59,4% melebihi batas normal) di Kabupaten Lamongan. Kadar timbal dalam darah berhubungan signifikan dengan tingkat kecerdasan majemuk (nilai p < 0,05) dan anak-anak yang kadar timbal darahnya tinggi berisiko mempunyai tingkat kecerdasan majemuk rendah sebesar hampir 3,5 kali dibandingkan dengan mereka yang berkadar timbal darah rendah (Odds Ratio=3,447). Semakin dekat jarak rumah terhadap sumber pencemar timbal, semakin rendah pendidikan orang tua, dan seringnya tidak masuk sekolah dengan alasan sakit juga ditemukan berisiko terhadap rendahnya tingkat kecerdasan majemuk. Walaupun begitu, hanya rendahnya pendidikan orang tua yang ikut mempengaruhi hubungan kadar timbal dalam darah dengan tingkat kecerdasan (majemuk) anak-anak dalam analisis lanjut. Penelitian ini menyimpulkan bahwa pajanan timbal karena peleburan aki bekas sudah membahayakan. Disarankan agar industri yang menggunakan timbal harus ditutup di wilayah tersebut atau dipindahkan menjauh dari pemukiman masyarakat

THE ASSOCIATION BETWEEN FOOD HYGIENE AND THE ESCHERICHIA COLI CONTAMINATION ON SCHOOL SNACK AT ELEMENTARY SCHOOL IN CAKUNG SUBDISTRICT, EAST JAKARTA

Background: Unsafe food hygiene poses threats for becoming disease transmission. The most common of foodborne pathogenic bacteria is Escherichia coli. The purpose of this study was to examine the association between food hygiene and the contamination of escherichia coli bacteria on school snack. Subejcts and Method: A cross-sectional study was conducted in Cakung, East Jakarta from December 2016 to January 2017. A sample of 60 food handlers from a total of 147 foods handlers’ population was selected by cluster sampling. The dependent variable was E. coli bateria. The independent variables were proper hand washing, food serving aids, proper equipment washing, types of selling facilities, sanitation facilities, the placement of cooked food, and food preparation. The data were collected by laboratory test result and questionnaire. The data were analyzed by multiple logistic regressions. Results: As many as 45% of the positive snacks were contaminated with E. coli bacteria. E. coli bacterial contamination on food was related to the practice of using food serving aids (OR= 5.00; 95% CI= 1.19 to 20.92; p= 0.044), a place to store cooked food (OR= 6.11; 95% CI = 1.73 to 21.59; p = 0.007) and method of presentation (OR = 7.14; 95% CI = 1.43 to 35.57; p = 0.002). Conclusion: The incidence of Escherichia coli contamination on food is related to the practice of using food serving aids, the placement of cooked food and food serving. Keywords: Escherichia coli, school snack Corresponden: Hanifatun Nisa Ath Thoriqoh. Public Health Postgraduate Study Program, Faculty of Public Health, University of Indonesia, Depok, West Java. Email: [email protected]. Mobile: 08180815774