Sufferers with diabetes want to well recognize the threat of diabetic headaches and the shape of the Health Belief Model (HBM) with recognize to constructs suitable for intervention. This study aims to determine the effect of the health belief model on the prevention of type 2 diabetes mellitus in fertile age couple. The research design was cross sectional. The research sample was fertile age couple who are in the area of Depok City, West Java as many as 399 respondents. Data analysis used a structural equation modeling approach with the partial least squares method. The results showed that there was a perceived effect on the prevention of type-2 diabetes mellitus with a t-statistic of 13.331880, there was an effect of self-efficacy on the prevention of type-2 diabetes mellitus with a t-statistic of 2.221879, there was an effect of cues to action on the prevention of type-2 diabetes mellitus with a t-statistic of 2.482949, and the perceived indicator that has the most influence on the prevention of type-2 diabetes mellitus was barriers with a t-statistic of 180.528565. Based on the value of R2, the magnitude of the effect of perceived, self-efficacy, and cues to action on the prevention of type-2 diabetes mellitus was 89.52%. From the Q2 value, the model in this study has a relevant predictive value, where the model used can explain the information contained in the research data by 89.52%. There was an effect of health belief model on the prevention of type 2 diabetes mellitus in fertile age couple. Another dominant variable that influences the prevention of type 2 diabetes mellitus in fertile age couple was perceived and on indicators of barriers.

Condensate water is typically generated as a by-product during the use of steam as a medium for heat transfer. In order to optimize the transfer area, the chemical industry often employs heat exchangers, such as the plate heat exchanger (PHE), which provides flexibility in adjusting the space area for heat transfer. This case study examines the optimization of plate geometry dimensions to enhance the heat transfer process of PHE equipment design. The optimization process involves mathematical equations and a literature review of the design of this type of heat exchanger. Improving the dimensional aspect of the plate geometry results in an increase in the overall heat transfer coefficient (U) and a reduction in the number of design requirements used. The study's estimation results suggest that the PHE design has a limitation on plate dimensions, which should be less than 0.3×0.6 m. Additionally, it is important to consider the pressure drop value, which should not exceed 29.07 kPa. A review of the chemical industry field provided estimated options for plate size and quantity, both of which support the optimization of heat transfer rate and design constraint thresholds. The implementation of the design has been found to enhance the performance of the planning process for recovering steam condensate water.

Heat exchangers transfer heat from a high temperature to a low temperature in a fluid. Air-cooled heat exchangers are one of the most widely used types of heat exchangers, after shell and tube heat exchangers. Its performance is determined by calculating the fouling factor value and the pressure drop. The purpose of this case study is to evaluate the performance of a water-cooled heat exchanger in a plant that produces a thickening agent (CMC, or carboxymethylcellulose), which affects the amount of ethanol produced. Ethanol will cool from 79.347 to 54.133 oC, and air will cool from 31.333 to 59.667 oC as the cold fluid. The calculation results show that both reviews exceed the design threshold of 0.007056 h.ft2.oF/Btu. These heat exchangers require maintenance and repair. These results differ from the pressure drop values on the air side and pipe section, which are 1.2.10-3 inH2O and 0.647 psia, respectively. Both values remain outside the allowable limits. The performance evaluation of process equipment in the separation unit was aided by field data. The review of the data was able to predict a plant shut-down. This action was able to effect a partial or total plant shut-down due to fouling and scale exceeding design data thresholds.

Diabetes mellitus is a degenerative disease that cannot be cured and has a risk of complications if not adequately controlled. Self-care is an important aspect of managing diabetes mellitus independently to improve the quality of life and well-being of the diabetic. One of the strategies to enhance the self-care management skills of the diabetic is to provide education through the booklet SECARIC Diary. This type of research is a quasi-experimental quantitative study with a pre-test-post-test design with the control group. Sampling was conducted using purposive sampling technique at several Posyandu in Desa Karang Asem Barat with a total sample of 22 respondents for the control group and 22 respondents for the intervention group. Data analysis used paired t-tests on self-care and quality-of-life variables with a p-value of 0.000 at a significance level of α = 0.05. Furthermore, data analysis was performed using an independent t-test with a p-value of 0.000 and a t-count of 4.756 on the self-care management variable and a p-value of 0.042 and a t-count of 2.098 on the quality of life variable. The results showed that the SECARIC Diary booklet media intervention could improve self-care management abilities and quality of life for type 2 diabetes mellitus patients in Desa Karang Asem Barat.

Chronic Energy Deficiency is a malnutrition problem during pregnancy caused by an unbalanced nutritional intake that resulted from a long-term energy deficiency. According to the Indonesian Primary Health Research data in 2018, only 25.2% of pregnant women received the supplementary feeding program, and the remaining 74.8% failed to receive the program. The data also states that the proportion of Indonesian pregnant women aged 15-49 years old were 17.3% high risk of Chronic Energy Deficiency. The study aimed to determine the community health degree based on the risk of events related to behavioral factors and husband support for pregnant women with Chronic Energy Deficiency, alternative problem solving, and problem-solving. The descriptive-analytic method was used with a qualitative approach through interviews with ten participants, stakeholders, and Chronic Energy Deficiency pregnant women. In addition, this study also uses the Ichikawa method to determine the problem cause. The results showed there was a lack of utilization of health service programs among pregnant women. To solve this problem, the alternative priority is to create educational content through the Instagram platform in terms of handling, monitoring, and preventing Chronic Energy Deficiency in pregnancy by taking into account the level of effectiveness and efficiency.

One of the factories for manufacturing Carboxymethyl Cellulose (CMC) uses a shell and tube-type heat exchanger as a condenser. The shell and tube (HE) heat exchanger consists of small diameter tubes arranged in a cylindrical shell. In the tube and shell sections, hot (ethanol) and cold (water) fluids will flow so that heat transfer occurs directly. The use of heat exchangers regularly will reduce the performance of the tool. Due to the increasing fouling layer inside the HE, the device will work harder, and the heat process could be more optimal. It is necessary to analyze the performance of the heat exchanger using the parameter value of the fouling factor (Rd). The fouling factor can be calculated using the manual calculation method (via the Kern method) and the HTRI program. The involvement of the mathematical equation in the first method will be configured for the calculation results through process simulation in the HTRI software. Both ways are used for calibration between manual calculations and the HTRI software for the Rd values obtained. The fouling factor can be calculated using the manual method and HTRI software. The two methods used for calibration are manual calculations with HTRI software. The results from this analysis give a decrease in tool performance with a fouling factor of 0,01 Btu/(h.ft2.℉). ABSTRAKSalah satu pabrik pembuatan Carboxymethyl Cellulose (CMC) menggunakan heat exchanger tipe shell and tube sebagai kondensor. Heat exchanger (HE) shell and tube terdiri dari sekumpulan tube berdiameter kecil yang disusun di dalam shell berbentuk silindris. Pada bagian tube dan shell akan dialirkan fluida panas (etanol) dan dingin (air) agar terjadi proses perpindahan panas secara tidak langsung. Penggunaan heat exchanger secara berkala akan mengurangi kinerja alat. Hal tersebut disebabkan oleh adanya lapisan fouling yang terus meningkat di bagian dalam HE sehingga alat akan bekerja lebih berat dan proses perpindahan panas tidak maksimal. Untuk mengatasi fenomena tersebut maka perlu dilakukan analisis kinerja heat exchanger menggunakan parameter nilai fouling factor (Rd). Fouling factor dapat dihitung menggunakan metode perhitungan manual (melalui metode Kern) dan penggunaan program HTRI. Keterlibatan persamaan matematis pada metode pertama akan dikonfigurasi hasil perhitungannya melalui simulasi proses pada software HTRI Kedua metode digunakan untuk kalibrasi antara perhitungan manual dengan software HTRI atas nilai Rd yang didapatkan. Hasil analisis perhitungan dengan kedua metode tersebut menghasilkan penurunan kinerja alat dengan nilai fouling factor sebesar 0,011 Btu/(jam.ft2.℉).