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The pearl oyster (Pinctada maxima) is a high-value aquaculture commodity whose hatchery success is strongly influenced by environmental conditions, particularly temperature. This study aimed to determine the effect of different temperatures on the growth and survival rate of Pinctada maxima larvae. The research was conducted at PT Timur Otsuki Mutiara (PT. TOM), Kupang Regency, East Nusa Tenggara, using a Completely Randomized Design (CRD) consisting of three temperature treatments: A (28°C), B (29°C), and C (30°C), each with three replications. The observed parameters included survival rate, absolute growth, dorsal–ventral specific growth rate, anterior–posterior specific growth rate, and water quality. Data were analyzed using Analysis of Variance (ANOVA). The results showed that temperature had a significant effect (P<0.05) on the survival rate and specific growth rate of the larvae. The 28°C treatment produced the highest survival rate (22.44%), dorsal–ventral specific growth rate (4.97%), and anterior–posterior specific growth rate (5.13%). The highest absolute growth was also recorded at 28°C, reaching 121.67 µm; however, no significant differences were observed among treatments (P>0.05). Water quality parameters remained within the optimal range for larval rearing throughout the study. Based on the research results, it can be concluded that 28°C is the optimum temperature for supporting the growth and survival of Pinctada maxima larvae, whereas increasing the temperature up to 30°C tends to reduce larval performance.

Rendahnya Angka Bebas Jentik (ABJ) menunjukkan tingginya potensi penyebaran nyamuk dan risiko kejadian DBD. Berdasarkan observasi awal di wilayah kerja Puskesmas Aur Duri ditemukan adanya jentik nyamuk pada sebagian besar rumah yang diperiksa serta adanya kasus positif DBD di wilayah tersebut.Oleh karena itu, penelitian ini dilakukan untuk menganalisis faktor-faktor yang berhubungan dengan keberadaan jentik nyamuk Aedes aegypti di wilayah kerja Puskesmas Aur Duri Kota Jambi. Penelitian ini merupakan penelitian observasional analitik dengan desain cross sectional dan pendekatan kuantitatif.Populasi penelitian sebanyak 7.723 rumah tangga, dengan sampel 121 rumah tangga yang dipilih menggunakan teknik proportional random sampling. Pengumpulan data dilakukan melalui observasi langsung, pengukuran lingkungan, dan wawancara terstruktur menggunakan lembar observasi.. Analisis data dilakukan secara univariat dan bivariat menggunakan uji Chi-square dengan tingkat kepercayaan 95% (? = 0,05), serta besar hubungan dinilai menggunakan Prevalence Ratio (PR). hasil uji Chi-square menunjukkan bahwa hanya variabel warna TPA yang memiliki hubungan signifikan dengan keberadaan jentik nyamuk Aedes aegypti (p=0,00; PR=3,31; 95%CI=1,40–2,47), sedangkan variabel lain seperti letak TPA (p=0,80; PR=1,01), sumber air (p=0,70; PR=1,10), jumlah TPA (p=0,75; PR=1,10), suhu TPA (p=0,08; PR=1,45), kelembaban (p=0,99; PR=1,01), dan pH air (p=0,50; PR=0,76) tidak menunjukkan hubungan yang signifikan dengan keberadaan jentik nyamuk Aedes aegypti. Hasil analisis menunjukkan bahwa hanya warna TPA yang memiliki hubungan dengan keberadaan jentik nyamuk Aedes aegypti.

Kelelahan kerja merupakan salah satu permasalahan kesehatan kerja yang dapat menurunkan produktivitas dan meningkatkan risiko kecelakaan kerja, khususnya pada lingkungan kerja smelting dengan suhu tinggi dan aktivitas fisik berat. Penelitian ini bertujuan untuk mengetahui hubungan antara variabel bebas yaitu lama kerja, paparan panas, beban kerja, keluhan subjektif gangguan pernapasan, dan Musculoskeletal Disorders (MSDs) dengan variabel terikat yaitu kelelahan kerja pada pekerja smelting PT. Antam (Persero) Tbk. UBPN Kolaka Tahun 2026. Penelitian ini menggunakan metode kuantitatif dengan pendekatan cross sectional. Populasi penelitian adalah seluruh pekerja smelting sebanyak 120 orang dengan teknik total sampling. Pengumpulan data dilakukan menggunakan kuesioner dan alat ukur fatique Reaction Timer SLS-L77. Berdasarkan hasil uji normalitas, data penelitian tidak berdistribusi normal sehingga analisis data dilakukan menggunakan uji Spearman’s rho. Hasil penelitian menunjukkan bahwa terdapat hubungan signifikan antara lama kerja dengan kelelahan kerja dengan nilai p-value sebesar 0,049 dan nilai korelasi (r) sebesar 0,180 yang menunjukkan hubungan positif dengan kekuatan sangat lemah. Sementara itu, paparan panas memiliki nilai p-value 0,669 dan nilai korelasi (r) 0,039, beban kerja memiliki nilai p-value 0,363 dan nilai korelasi (r) -0,073, keluhan subjektif gangguan pernapasan memiliki nilai p-value 0,596 dan nilai korelasi (r) 0,049, serta MSDs memiliki nilai p-value 0,807 dan nilai korelasi (r) 0,023, yang menunjukkan tidak terdapat hubungan signifikan dengan kelelahan kerja. Disimpulkan bahwa lama kerja merupakan faktor yang berhubungan dengan kelelahan kerja pada pekerja smelting PT. Antam (Persero) Tbk. UBPN Kolaka Tahun 2026

One of the goals of a building is to create a comfortable environment that does not affect the health and operations of its occupants, therefore a system needs to be created to ensure comfort in classrooms. To fulfill a comfortable situation, there is a standard that regulates comfort, especially thermal and visual comfort. Thermal comfort is regulated in SNI 03-6572-2001 and visual comfort is regulated in SNI 03-6575-2001. The aim of this research is to design a tool to automatically monitor temperature and lighting, determine greater accuracy, determine temperature and lighting comfort distances, and test Smart Comfort measurement results in accordance with the SNI-03-6571-2001 and SNI-03-6575-2001 conformity standards. This design uses ESP32 with IoT-based LDR and DHT11 sensors which can be seen on the web and application, determines the accuracy and range of Smart Comfort values for monitoring temperature and lighting and determines the suitability of measurement quantities in the SDN PINANG 3 classroom.

Fase brooding merupakan periode paling krusial dalam siklus hidup unggas yang menentukan keberhasilan performa produksi pada tahap berikutnya. Namun, manajemen lingkungan pada peternakan rakyat, seperti Kelompok Ternak Asri Wijaya, masih menghadapi tantangan besar terkait fluktuasi mikroklimat dan akumulasi gas beracun. Penelitian ini bertujuan untuk mengintegrasikan teknologi Internet of Things (IoT) ke dalam sistem ventilasi guna memitigasi risiko mortalitas akibat tingginya konsentrasi amonia (NH₃) dan karbon dioksida (CO₂). Melalui pendekatan Research and Development (R&D), sistem dikembangkan menggunakan mikrokontroler ESP32 yang terintegrasi dengan sensor DHT22, MQ-135, dan MQ-2 untuk memantau parameter lingkungan secara real-time. Data diakuisisi secara berkelanjutan dan diolah untuk menggerakkan aktuator berupa exhaust fan serta sistem pemanas berupa lampu pijar melalui logika kontrol ambang batas. Hasil pengujian menunjukkan bahwa sistem mampu menjaga stabilitas suhu pada rentang optimal 33 °C dan secara efektif mereduksi konsentrasi gas berbahaya di bawah ambang batas kritis (NH₃ < 25 ppm; CO₂ < 3.000 ppm). Kontribusi ilmiah penelitian ini terletak pada rancang bangun arsitektur sistem kendali lingkungan yang adaptif dan ekonomis untuk skala peternakan rakyat. Implikasi penelitian ini tidak hanya meningkatkan efisiensi operasional dan kesejahteraan hewan (animal welfare), tetapi juga mendorong transformasi digital menuju Precision Livestock Farming yang berkelanjutan di tingkat lokal.

Dengue Hemorrhagic Fever (DHF) remains a significant public health problem in tropical countries, including Indonesia. The presence of Aedes aegypti larvae is an important indicator of dengue transmission risk and is influenced by environmental factors, particularly temperature and humidity. This study aimed to analyze the relationship between temperature and humidity and the presence of mosquito larvae in Meteseh Village, Tembalang District, Semarang City. This analytical observational study employed a cross-sectional design involving 100 households selected through quota sampling. Data were collected through direct observation and measurement of temperature and humidity using a thermo-hygrometer, then analyzed using the Chi-square test. The results showed a significant association between temperature and the presence of mosquito larvae (p=0.000), while humidity was not significantly associated with larvae presence (p>0.05). Temperature was identified as a more influential environmental factor in supporting mosquito larvae existence than humidity in the study area. These findings highlight the importance of environmental-based vector control strategies, particularly through management of microhabitat temperature conditions, to support dengue prevention.

Dengue Hemorrhagic Fever (DHF) remains a significant public health problem in tropical countries, including Indonesia. The presence of Aedes aegypti larvae is an important indicator of dengue transmission risk and is influenced by environmental factors, particularly temperature and humidity. This study aimed to analyze the relationship between temperature and humidity and the presence of mosquito larvae in Meteseh Village, Tembalang District, Semarang City. This analytical observational study employed a cross-sectional design involving 100 households selected through quota sampling. Data were collected through direct observation and measurement of temperature and humidity using a thermo-hygrometer, then analyzed using the Chi-square test. The results showed a significant association between temperature and the presence of mosquito larvae (p=0.000), while humidity was not significantly associated with larvae presence (p>0.05). Temperature was identified as a more influential environmental factor in supporting mosquito larvae existence than humidity in the study area. These findings highlight the importance of environmental-based vector control strategies, particularly through management of microhabitat temperature conditions, to support dengue prevention.

Modern infrastructure development often involves the use of mass concrete in large structural elements such as pile caps and foundations. However, massive concrete volumes trigger a significant temperature increase due to the heat of hydration that is difficult to dissipate, posing a risk of thermal stress and structural cracking. This study aims to analyze the temperature rise behavior of mass concrete and evaluate the effectiveness of combining chilled water and fly ash substitution in minimizing these thermal cracking risks.The research method employs a quantitative approach through laboratory testing at PT Adhimix RMC Plant Kaligawe. Specimen blocks measuring 40 x 40 x 100 cm were divided into three variations: normal concrete (BN), concrete with chilled water and 15% fly ash (BAF), and concrete with 25% fly ash (BF). Temperature was monitored using thermocouples at the core and surface for 14 days, then validated using the Portland Cement Association (PCA) formula. The results indicate that the integration of chilled water with 15% fly ash and the use of 25% fly ash significantly controlled extreme temperature surges at the 5th hour. The combination of chilled water and 15% fly ash produced the lowest core temperature of 37.3°C, far below the control concrete which reached 62.4°C. This proves that the combination of precooling methods and fly ash substitution is effective in reducing the heat of hydration during the early hardening period, although the use of 25% fly ash was found to be more stable in maintaining mass concrete temperature.

Sea Surface Temperature (SST) is an important parameter in oceanographic studies because it influences climate dynamics, ocean circulation, and marine ecosystems. Continuous monitoring of SST in open sea areas requires a reliable system capable of operating autonomously. This study develops a solar-powered ocean buoy designed to measure sea surface temperature while simultaneously evaluating the performance of a solar panel as the main energy source. The system uses a DS18B20 sensor to measure SST and an INA219 sensor to monitor the voltage, current, and power of the solar panel, while an ESP32 microcontroller functions as the central data processing unit. The results show that sea surface temperature tends to remain relatively stable with small daily variations, whereas the temperature and performance of the solar panel exhibit larger fluctuations due to direct exposure to solar radiation and changing weather conditions. Solar panel performance also shows significant variations in current and power depending on the intensity of sunlight. To analyze the influence of SST variations on solar panel performance, a statistical analysis using Analysis of Variance (ANOVA) was conducted. The ANOVA results, based on the calculated F-value and the significance value (p-value) at a confidence level of α = 0.05, indicate that SST variations have a significant effect on solar panel performance, demonstrating that the proposed solar-powered buoy system can operate autonomously and has potential for long-term SST monitoring in offshore areas.

Generators are one of the important auxiliary aircraft needed on ships for power generation. During the operation of a diesel generator, continuous rotation occurs resulting in friction and erosion of the moving parts. The supporting factor for the smooth running of a diesel engine is a lubrication system that is supported by good lubricating oil quality, besides that it also needs to be supported by an adequate and good cooling system. The use of lubricants is one of the most important factors to ensure the performance of diesel engines. The lubricant is in charge of maintaining the condition of the engine so that it remains stable. This study aims to analyze the effect of using lubricating oil beyond the operating hours limit on engine heat. Furthermore, it also discusses steps to ensure diesel engine temperatures remain normal. This research was carried out during the practice of sailing on a ship for approximately one year. This study uses a descriptive quantitative research method. The primary data obtained directly utilizes observation methods, and documentation. Secondary data was obtained from existing articles and journals. The data analysis techniques used are descriptive analysis and inferential analysis. The results of this study show that the working hours of lubricating oil use have a significant influence on the increase in the temperature of diesel generator engines as evidenced by hypothesis tests on two engine units, namely AE1 and AE2. In the AE1 unit, a t-value of 18.467 with a significance of 0.000 was obtained, while in AE2 the t-value was 14.289 with a significance of 0.000. The significance value in both units is less than 0.05 so it can be concluded that the working hours of lubricated oil have a significant influence on the temperature of the genarato diesel engine on the ship.

Studi ini dirancang untuk menginvestigasi pengaruh Suhu Permukaan Laut (SST) dan konsentrasi klorofil-a terhadap variabilitas hasil tangkapan ikan di kawasan Pantai Selatan melalui pendekatan model regresi linear berganda dengan estimasi Ordinary Least Squares (OLS). Pada tahap diagnostik awal, terdeteksi adanya indikasi autokorelasi positif pada residual model (statistik Durbin–Watson = 0,993), suatu kondisi yang berpotensi menginduksi bias pada estimasi standard error sehingga dapat mengkompromikan validitas inferensi statistik. Guna mengantisipasi permasalahan tersebut, dilakukan koreksi menggunakan metode Newey-West Heteroskedasticity and Autocorrelation Consistent (HAC) standard errors yang diimplementasikan melalui komputasi Python. Hasil estimasi pasca-koreksi mengungkapkan bahwa secara simultan, variabel SST dan klorofil-a memberikan pengaruh yang signifikan terhadap keragaman hasil tangkapan ikan, dengan nilai koefisien determinasi (R²) sebesar 23,7%. Berdasarkan uji parsial (uji t terkoreksi), SST menunjukkan pengaruh negatif yang signifikan secara statistik terhadap hasil tangkapan, sementara klorofil-a tidak memperlihatkan pengaruh yang signifikan. Temuan tersebut mengimplikasikan bahwa variabel termal (SST) memiliki kontribusi yang lebih dominan dibandingkan indikator produktivitas primer (klorofil-a) dalam memengaruhi dinamika hasil tangkapan ikan pada wilayah kajian.

Keselamatan pasien pada layanan perawatan di rumah (homecare) menjadi perhatian penting di wilayah tropis yang memiliki tantangan lingkungan serta ketergantungan tinggi pada caregiver keluarga. Kondisi lingkungan dengan suhu dan kelembaban tinggi berpotensi memengaruhi pengelolaan obat dan praktik pencegahan infeksi di lingkungan rumah. Penelitian ini bertujuan untuk mengidentifikasi potensi risiko keselamatan pasien pada layanan homecare dari perspektif caregiver, khususnya terkait pengelolaan obat dan pencegahan infeksi. Penelitian ini menggunakan desain kuantitatif deskriptif dengan pendekatan survei yang melibatkan 105 caregiver non-profesional berusia 20–70 tahun. Data dikumpulkan menggunakan kuesioner terstruktur yang mencakup aspek self-efficacy caregiver, pengelolaan obat, dan praktik pencegahan infeksi. Analisis data dilakukan secara deskriptif menggunakan distribusi frekuensi dan persentase. Hasil penelitian menunjukkan bahwa tingkat self-efficacy caregiver berada pada kategori sedang. Risiko kesalahan pengelolaan obat cenderung rendah, namun masih terdapat potensi risiko yang dipengaruhi oleh keterbatasan pemahaman caregiver serta kondisi penyimpanan obat di lingkungan tropis. Pengetahuan caregiver mengenai pencegahan infeksi tergolong baik, tetapi praktik pencegahan infeksi masih berada pada kategori sedang. Penelitian ini menegaskan pentingnya penguatan kapasitas caregiver melalui edukasi berkelanjutan dan dukungan dari layanan kesehatan primer untuk meningkatkan keselamatan pasien pada layanan homecare di wilayah tropis.

Malaria merupakan penyakit infeksi yang masih menjadi masalah kesehatan masyarakat di Indonesia, terutama di wilayah timur seperti Papua, termasuk Kabupaten Kepulauan Yapen. Salah satu manifestasi klinis malaria adalah hipertermi yang memerlukan penanganan segera untuk mencegah komplikasi. Selain terapi farmakologis, kompres hangat merupakan intervensi keperawatan nonfarmakologis yang dapat membantu menurunkan suhu tubuh melalui mekanisme pelepasan panas. Penelitian ini bertujuan mendeskripsikan implementasi kompres hangat dalam mengatasi hipertermi pada pasien malaria melalui pendekatan asuhan keperawatan. Penelitian menggunakan metode deskriptif dengan desain studi kasus yang dilaksanakan di RSUD Serui pada tahun 2025. Intervensi berupa kompres hangat pada dahi dan ketiak diberikan selama 10–15 menit, satu kali sehari selama dua hari, disertai perawatan standar. Hasil evaluasi menunjukkan bahwa pada hari pertama pasien masih mengalami hipertermi dengan suhu tubuh 38,2°C sehingga intervensi dilanjutkan. Pada hari kedua suhu tubuh menurun menjadi 37,0°C, keluhan demam berkurang, dan masalah hipertermi dinyatakan teratasi. Selama pemberian intervensi tidak ditemukan efek samping pada kulit maupun gangguan hemodinamik. Temuan ini menunjukkan bahwa kompres hangat efektif membantu menurunkan suhu tubuh dan meningkatkan kenyamanan pasien sebagai terapi pendamping dalam asuhan keperawatan pasien malaria. Meskipun demikian, hasil penelitian ini masih terbatas pada satu kasus sehingga diperlukan penelitian dengan jumlah sampel yang lebih besar untuk mengonfirmasi efektivitas, keamanan, dan protokol pemberian kompres hangat yang optimal.  

The performance of asphalt mixtures is strongly influenced by the composition of their constituent materials, particularly aggregate size and mixing temperature during production. In many tropical and subtropical regions, asphalt pavements frequently experience rutting, reduced stability, and changes in viscoelastic properties due to high environmental temperatures and heavy traffic loads. These conditions can significantly affect pavement durability, making it essential to produce asphalt mixtures that meet established technical standards. This study aims to analyze the effect of variations in aggregate size distribution and mixing temperature on the Marshall characteristics of Asphalt Concrete Wearing Course (AC-WC) mixtures. The research employs the Marshall test method to evaluate the load-bearing capacity and stability of hot asphalt mixtures and to assess their compliance with ASTM/SNI standards. The results indicate that mixtures with standard aggregate gradation achieve stability values of 985 kg at 120°C, 1055 kg at 140°C, and 1107 kg at 160°C. As mixing temperature increases, flow values decrease, while the Marshall Quotient (MQ) increases, indicating improved stiffness. Higher temperatures also enhance compaction, reducing VIM and VMA while increasing VFA. Conversely, non-standard aggregate gradations result in several parameters failing to meet ASTM/SNI requirements, confirming that standard gradation produces superior asphalt performance.

The Low Voltage Main Distribution Panel (LVMDP) is a critical component in industrial power distribution systems, functioning to regulate, control, and distribute electrical energy to various production equipment. During operation, LVMDP panels often operate under high electrical loads, which may lead to temperature increases in their components. Undetected temperature rise can result in performance degradation, equipment failure, and even fire hazards. Therefore, an effective monitoring method is required to detect the condition of electrical components at an early stage. This study aims to analyze the temperature difference (ΔT) of LVMDP components using the Infrared Thermography method as part of predictive maintenance. The research employs a quantitative descriptive approach with data collected through direct observation from July 1 to July 31 at PT. Dongjin Indonesia. The data consist of hotspot and ambient temperatures measured from several panel components, which are then analyzed to calculate the temperature difference (ΔT) as an indicator of component operating conditions. The results indicate that the highest temperature difference is 26.5 °C in the capacitor bank, while the lowest is 4 °C in other components. All ΔT values are below the threshold limit of 50 °C, indicating that the LVMDP components are in safe operating conditions and do not require corrective actions. Thus, Infrared Thermography is proven to be an effective method for early detection of component conditions and can enhance the reliability and safety of industrial power distribution systems.

Whiteleg shrimp (Litopenaeus vannamei) is a leading commodity in aquaculture in Indonesia due to a number of advantages such as disease resistance, rapid growth, high survival rate, and feed conversion efficiency. Whiteleg shrimp contributes significantly to Indonesian fisheries exports, reaching 38.98% in 2021. To meet high market demand, increasing the productivity and quality of whiteleg shrimp is very important, where the quality of the shrimp is influenced by the quality of the fry. Good management, including selecting quality broodstock, proper handling of eggs and nauplii, and maintaining optimal water quality, is very important in producing quality whiteleg shrimp fry. This study aims to determine the effect of temperature on the growth length and life expectancy of whiteleg shrimp nauplii. The study was conducted using a completely randomized design with three different temperature treatments (26°C, 29°C, and 32°C). The whiteleg shrimp nauplii used had an average size of 328.24mm obtained from PT. Delta Windu Purnama Situbondo. The water quality parameters used are Temperature, pH, salinity, and DO. Delta Windu Purnama Situbondo. Data were analyzed using SPSS 16.

13Kalibrasi Instrumen Proses Evaporator sebagai Upaya MenjaminKeselamatan Pengolahan Limbah Radioaktif Cair(Calibration of Evaporator Process Instruments to Ensure the Safety ofLiquid Radioactive Waste Treatment)Dzulfikri Pangestu1,2*, Sugianto2 , Krismanto21Program Studi Teknik Elektro, Institut Teknologi Indonesia2Instalasi Pengelolaan Limbah Radioaktif, Direktorat Fasilitas Ketenaganukliran,Badan Riset dan Inovasi NasionalAbstrakUnit evaporasi pada fasilitas pengolahan limbah radioaktif cair IPLR-BRIN telah beroperasi sejak1989, sehingga berpotensi mengalami degradasi komponen dan instrument drift yang dapatmemengaruhi akurasi pengukuran proses. Ketidakakuratan instrumen proses pada titik-titik kritisseperti laju aliran, level, tekanan, suhu, dan densitas berpotensi menempatkan operasi di luar bataskeselamatan yang ditetapkan oleh BAPETEN. Untuk memastikan keandalan sistem pengukuran,dilakukan kegiatan kalibrasi internal terhadap 22 instrumen proses yang digunakan dalam operasievaporasi. Kegiatan ini mencakup pengujian instrumen berbasis arus 4–20 mA dan sensor suhuberbasis resistansi menggunakan peralatan standar seperti current source, multimeter digital, danresistance decade box. Setiap titik uji divalidasi melalui empat kali pengulangan untuk menilai presisidan konsistensi pembacaan. Hasil kalibrasi menunjukkan bahwa seluruh instrumen masih beradadalam kondisi kerja yang baik, dengan penyimpangan terhadap nilai acuan komisioning berada padarentang yang sangat kecil. Estimasi ketidakpastian pengukuran berulang didominasi oleh nilaimendekati nol, menandakan bahwa variasi acak hampir tidak terjadi dan instrumen memiliki presisiyang tinggi serta tidak mengalami drift signifikan. Selain itu, seluruh sistem alarm proses meliputiparameter level, tekanan, suhu, dan densitas berfungsi pada nilai set dan reset yang sesuai bataskeselamatan. Temuan ini menegaskan bahwa instrumen proses pada unit evaporasi masih memenuhipersyaratan teknis dan keselamatan operasional, serta menggarisbawahi pentingnya pelaksanaankalibrasi internal secara berkala sebagai bagian dari pemeliharaan preventif untuk menjagakeandalan fasilitas dalam jangka panjang.

Adanya risiko pencemaran lingkungan dan ledakan yang disebabkan oleh tekanan balik pada aliran gasbuang sehingga diperlukan pembuatan sistem pengapian (ignitor) otomatis dimana gas buang dapatterbakar sebelum dilepaskan ke lingkungan. Perangkat ini menggunakan modul MAX6675, sensortermokopel tipe-K, mikrokontroler ESP32, aktuator ignitor elektrik, tampilan LCD I2C, dan platformBlynk untuk monitoring jarak jauh. Pipa Ignitor yang berfungsi untuk menghasilkan api kecil suhunyaakan dideteksi oleh sensor termokopel, dimana besar kecilnya temperatur akan diberikan oleh termokopelmelalui modul MAX6675 kepada mikrokontroller, lalu diolah oleh mkrokontroller. Hasil dari pengolahanmikrokontroller akan diberikan kepada ignitor untuk memerintahkan apakah ignitor On atau Ignitor Off.Suhu dan status ignitor ditampilkan melalui LCD dan Blynk pada monitoring jarak jauhnya. Rentang suhuuji 0°C-100°C, pengujian mengukur waktu respons ignitor, akurasi suhu, dan efektivitas pembakaran.Hasil penelitian menunjukkan bahwa sensor sangat akurat (selisih <1%), sistem dapat mengaktifkanignitor secara Otomatis (SUHU1 untuk pembacaan sensor) sesuai ambang suhu yang ditetapkan (ignitorON di bawah 100 °C dan OFF di atas 100 °C), Serta terdapat sistem Manual (SUHU2) yang dapat disebutjuga sistem bypass yang mengaktifkan ignitor hanya dengan mengaktifkan tombol FIRE. Jarak antara busidan elektroda pemantik ssebesar 50 mm merupakan jarak untuk mendapatkan nyala api terbaik. Sistemotomatis maupun manual dari ignitor ini dapat dimonitor melalui LCD, Blynk dan pembacaan faultnyadapat bekerja sesuai dengan perancangan.

Boiler merupakan komponen vital dalam operasional Pemnagkit Listriik Tenaga Sampah, Dimana sampahmenjadi bahan bakar Utama yang diolah menjadi panas yang dipergunakan untuk mendidihkan airdidalam boiler. Operasional boiler memerlukan pengawasan ketat terhadap parameter suhu, tekanan, danlevel air untuk mencegah risiko kecelakaan kerja dan inefisiensi energi. Namun, sistem pemantauankonvensional seringkali masih bergantung pada pengecekan manual yang berisiko terjadi kesalahanmanusia (human error). Penelitian ini bertujuan untuk merancang dan mengimplementasikan sistemkontrol otomatis boiler berbasis Internet of Things (IoT) menggunakan mikrokontroler ESP32 sebagai unitpemroses utama. Sistem ini dilengkapi dengan sensor suhu, sensor tekanan, dan Level Switch untukmendeteksi level air secara real-time. Data dari sensor dikirimkan ke aplikasi Blynk melalui jaringan Wi-Fi, yang memungkinkan operator melakukan pemantauan dan pengendalian jarak jauh melaluismartphone. Hasil pengujian menunjukkan bahwa sistem mampu mengotomatisasi pengisian air danpengeluaran uap dengan tingkat akurasi yang tinggi serta latensi pengiriman data yang minimal.Implementasi sistem ini diharapkan dapat meningkatkan standar keselamatan kerja, efisiensi operasional,dan memperpanjang usia pakai komponen boiler melalui pemeliharaan preventif yang lebih akurat.Kata Kunci: Boiler, IoT, ESP32, Sistem Kontrol Otomatis, Monitoring Real-time.

Typhoid fever is an infectious disease caused by Salmonella typhi. Transmission can occur through air or food contaminated with the urine and feces of typhoid sufferers, such as air used for drinking, cooking, and washing food. Symptoms of typhoid fever include a prolonged high fever, defined as an elevated body temperature of >37.5°C. Other symptoms can include fatigue, nausea, abdominal pain, constipation or diarrhea, and headache. This study aimed to treat children with typhoid fever. The method used was a case study of a five-year-old child with typhoid fever who was hospitalized for four days. The results showed that the child had fever, obesity, and decreased appetite. The child's problem was hypothermia, while cooling interventions were used to manage hypothermia, and one of the cooling procedures performed was the application of aloe vera compresses. The evaluation results showed that the hyperthermia resolved after four days of hospitalization. Based on this study, it is hoped that patients and their families can independently apply aloe vera compresses to treat hypothermia in children.