This study aimed to determine the effect of giving liquid tofu fertilizer to the growth and yield of red spinach plants (Alternanteraamoenavoss) with floating raft hydroponic techniques. Research on red spinach growth parameters was carried out at Horti Park Lampung. The method used in this study was Complete Random Design (CRD) consisting of 4 concentration P0 (0% AB Mix), P1 (30%), P2 (45%) and P3 (60%) and 3 replications. The study was conducted for 4 weeks. Measurements and observations are carried out 4 times, i.e. every 1 week. The parameters measured were stem height, number of leaves, leaf width, root length. Then, the data analysis was performed using One Way ANOVA on SPSS 17, and register later with the LDS test at the level of 5% significance. The results showed that tofu wastewater available at P3 maintenance (60%) was significantly different from other treatments, and at the same time discussed liquid waste which was known at the time of preparation of P1 (30%) because, it did not depend on nutrients contained in inside, so it causes less growth, compared to the implementation of P0 (0%), P2 (45%) and P3 (60%).

Water needed for daily use is viable water that is clean and healthy. Due to limited access to clean water, people buy bottled water and refillable drinking water. It is necessary to do clinical research at the laboratory to determine whether the water condition is feasible or not for consumption. The purpose of this study was to determine whether or not there is E.coli bacteria in the refillable drinking water and bottled water. This study uses an experimental method. Samples were taken from 15 refillable drinking water depots in Kecamatan Rawalumbu Bekasi and 15 bottled water samples. The bacterias identification was made by planting the samples in Blood Agar media and EMB. The results showed four positive samples of E. coli bacteria (26.7%) in the refillable drinking water depot at Kecamatan Rawalumbu Bekasi and one positive sample of E. coli bacteria (6.7%) in bottled water. It was also found that other types of bacteria such as Coliform (6.7%), Pseudomonas sp. (40%), Klebsiella sp. (13.3%), Staphylococcus sp. (6.7%), and Streptobacillus Gram + (13.4%). Key words: Refillable Drinking Water, Bottled Water, Escherichia coli.

This study discusses the relationship between the level of knowledge and attitudes about personal protective equipment, years of service, and length of work with the incidence of Acute Respiratory Infections (ARI) in traffic police in East Jakarta. This study used a questionnaire with a cross-sectional method with a total sample of 54 people. The results showed that there were 32 (59.3%) cases of ARI, and the most influential factor in a row was the lack of knowledge about Personal Protective Equipment (PPE) as many as 21 respondents (84.0%), negative attitudes towards the use of equipment. Personal protective equipment as many as 21 respondents (84.0%), long working period (≥ 5 years) 26 respondents (83.9%), length of service 26 respondents (92.9%). Based on the results of the study, it can be concluded that the level of knowledge and attitudes about personal protective equipment, years of service, and length of work affect the incidence of ARI.

Hypertension is a blood pressure condition 140/90 mmHg, and hypertension is the number one non-communicable disease worldwide that can cause death. The prevalence of hypertension increases with age. This study aims to determine whether there is a relationship between physical activity and diet on the incidence of hypertension in the elderly in RW 011, Cawang Village, East Jakarta. This study is a quantitative study with a cross-sectional study design with physical activity and diet as independent variables and the incidence of hypertension as the dependent variable. The sample of this study was elderly in RW 011, Cawang Urban Village, East Jakarta, totaling 65 people with a simple random sampling method. Blood pressure data were obtained by measuring blood pressure using a sphygmomanometer. Physical activity using the IPAQ (International Physical Activity Questionnaire) questionnaire and eating patterns using the FFQ (Food Frequency Questionnaire) questionnaire. Data analysis was performed using the Chi-Square test. This study showed that most of the incidence of hypertension had a percentage of 78.5%. Light physical activity was 40 respondents (65.5%), the diet with the most sodium intake was 38 respondents (58.5%), and the most fat intake was 36 respondents (55.4%), and the information on potassium was rarely or not as much as 36 (55.4%) respondents. The analysis results of the relationship between physical activity and the incidence of hypertension (p = 0.001). The results of the analysis of the relationship between dietary intake of sodium intake with the incidence of hypertension (p = 0.000) and fat intake with the incidence of hypertension (p = 0.023), and potassium intake with hypertension (p = 0.004). The conclusion is that there is a significant relationship between physical activity and diet with the incidence of hypertension in the elderly in RW 011, Cawang Village, East Jakarta City. Keywords: Hypertension, Elderly, Physical Activity, Diet

Menstruation is a physiological change in a woman's body that is affected by reproductive hormones that occur periodically. The menstrual cycle is the time from the first day of menstruation until the arrival of the next period of menstruation. The average menstrual cycle lasts for 21-35 days. Stress is a disorder of the body and mind caused by changes and life demands. Premenstrual Dysphoric Disorder (PMDD) is a condition accompanied by emotional and physical problems related to the menstrual cycle. This study aims to determine the correlation of stress levels during menstruation with the menstrual cycle in medical students. This study uses a type of cross-sectional research. The data was obtained using questionnaires. The study used 99 respondents who met inclusion criteria. The results showed that out of 99 respondents there were 79 respondents (79.8%) had a regular menstrual cycle, seven respondents (7.1%) had an abnormal menstrual cycle, there were 28 respondents (28.3%) had normal stress levels during menstruation. Twenty-one respondents (21.2%) had mild stress levels during menstruation, 21 respondents (21.2%) had moderate stress levels during menstruation, and 16 respondents (16.2%) had severe stress levels during menstruation, 13 respondents (13.1%) had stress levels are very heavy during menstruation. Based on the Spearman Rank test, there is a negative correlation with the moderate level of relationship between stress levels during menstruation and the length of the menstrual cycle. Keywords: Menstruation, Menstrual Cycle, Stress, Stress Level.