Dengue Haemorrhagic Fever (DHF) is an environmental based disease that transmitted by Aedes aegypti mosquitoes. There are three efforts to control Aedes aegypti, one of which is the use
of anti mosquito plants that is categorized as biological control. This study was aimed to determine the effect of repelling power of three anti-mosquito plants (Zodia, Rosemary and Citronella)
in the form of intact and chopped exposure on Aedes aegypti. The study was an experiment with
post test only design. The observation shows that the highest number of Aedes aegypti mosquetoes was repelled by chopped Zodia, i.e. 36 % or 17,99 mosquitoes in average; and the lowest
number is by Citronella in the form of whole plant, i.e.7 % or 3,63 mosquitoes in average. One
way Anova test obtained a p-value of <0,001; which means that the difference of the number of
mosquito repelled by each treatments is significant, and can be interpreted that the repelling power among the all treatments is significantly different. To conclude, the best repellent is chopped
Zodia.

The management of waste bank in urban areas of Bantul has been running for ten years, and
many are currently inactive. This study examines the intention of managing a sustainable waste
bank in the urban area of Bantul. The aim of this study is to determine the factors associated
with intention sustainable management of waste banks in the urban area of Bantul Regency. The
research sample was a waste saver in the waste bank of the urban area of Bantul Regency. The
data were analyzed by path analysis. The results of the study show that there is a significant relationship between the role of the government and the Independent Waste Management Network
(JPSM) with the participation of community in waste bank. Knowledge, participation, the role of
the government and JPSM have a significant relationship with the intention of the community in
the waste bank. This study helps understand the strength of the relative relationship of the determinants of intention to manage a sustainable waste bank. The strength of the biggest relationship is between the role of government and JPSM with intentions, followed by role relationships
with participation, then between participation and intention, and the weakest is the relationship
between knowledge and intention

Health problem and occupational disease is often found, because relationship between disease
and occupation is often unable to be detected. One type of health problems and occupational disease is musculoskeletal disorders. One high risk occupation to musculoskeletal disorders is
bus driver. This study, conduct an effort to reduce musculokeletal disorders among TransJogja
bus drivers by implementing muscle streching.This study was a quasi experiment with non equivalent control group design, and held on Mei 2018 with.The number of drivers sample was 30.
The study results show that the decrease average of musculoskeletal disorders in the control
group is 16,44 %, while in the experiment group it is 79,17 %. Statistical analysis using MannWhitney test at α=0,05 proves that the difference is significant (p-value  0,001). Therefore, it
can be concluded that muscle stretching can reduce musculoskeletal disorders among Trans
Jogja bus drivers.

Community health centre is place where healthy and ill people met, so that it is potential as diseases transmission site. The measurement of aerial bacteria number in Sewon II Community
Health Centre exceeded the 516 CFU/m3
threshold. Volatile oil of jasmine (Jasmine sambac) can
be used as natural disinfectant because it has antibacterial compounds. The objective of this
study was to know the effect of evaporation time of jasmine (Jasmine sambac) volatile oil on the
decrease of aerial bacteria number. The study was a pre-experiment with one group pre-testpost-test design. The aerial bacteria were sampled in the martenal and children ward of Sewon II
Community Health Centre, and then were examined at Microbiology Laboratory of The Polytechnic of Health of Yogyakarta. The results showed that the 3% volatile oil of jasmine (Jasmine
sambac) in 30 minutes evaporation time was able to decrease bacterial number as much as
11.67 CFU/m3 (16.64 %), while in 60 minutes it was 38.22 CFU/m3 (40.92 %), and in 90 minutes
it was 65.00 CFU/m3
(56.31 %). Statistical analysis with one way anova test obtained a p-value
0.05 which means that the decrase difference between the three evaporation times is significant; and the 90 minutes time evaporation give the highest decrease.

The effort to increase public health level can be obtained with clean and healthy live behaviors.
Dengue Hemorrhagic Fever (DHF) is arisen from lack of knowledge and awareness about environmental health. Many ways can be done to improve controlling behavior of DHF vectors. For
elementary school children, one of them is by playing games. The purpose of this study was to
know the effectiveness of hopscotch and monopoly games as the information media to improve
the control behavior of DHF vectors among elementary school students, by conducting a quasi
experiment with non-equivalent control group design. The study was carried out on May 2018.
The study subject was 45 third grade students of the State Elementary School in Karangjati,
Bantul. The data was analyzed to test the score differences between pre-test and post test. Paired t-test was used for normally distributed data and Wilcoxon test for the not-normal ones. The
analysis for testing the mean differences among study groups was one way Anova for normally
distributed data and Kruskal Wallis test for the not-normal ones. All statistic tests were at 95 %
significance level. The results shows significant difference between pre-test and post test of
knowledge and attitude measurement of the hopscotch and monopoly groups (p<0,05); and also
significant difference between pre-test and post-test of practice of all treatments (p<0,05). To
conclude, the games are only effective to improve knowledge about controlling DHF vectors, and
hopscotch game is the most effective media.

Water is the most essential need for people to fulfill their daily needs. Residents in Sidomulyo
Hamlet, of Trimulyo Village, in Sleman District, use dug wells as the primary source of clean water supply. However, the water quality gained is low because of high iron content in it. The study
was aimed to determine the differences between sand and activated carbon as filtration media
for decreasing Fe concentration, by conducting a “pre-test post-test with control group” designed
experiment with five replications. The study results showed that sand media was able reduce the
Fe in average of 1.18 mg/l, while with activated carbon media it was 1.27 mg/l, and in the control
group it was 0.4 mg/l. The analysis of one way anova test at 95 % confidence level obtained pvalue <0,001, which means that the differences is significant. To conclude, to decrease the Fe
content in Sidomulyo Hamlet, the well water can be processed by filtration, either with sand or
activated carbon. Nonetheless, activated carbon media is proved more effective.

Waste management in schools is an effort to make schools comfortable, healthy, and clean; included in special schools. Waste bin with Braille letter and equipped with voice sensor is designed to stimulate and to assist blind students in separating waste accurately by their types with
the help of audio stimulation. The purpose of this study was to determine the utilization of this
innovative waste bin on students’ accuracy in waste sorting. This study was an experiment with
post-test only control group design, and was taken place in the State Special School I of Bantul,
and all students of blind department as the respondent. Because the data obtained did not fulfilled the normality distribution assumption, Man Whitney non-parametric test was used in the
analysis, and the results showed that the brailled and voice sensored waste bin is proven affecting (p=0,011) the students’ accuracy on waste separation according to their types (i.e. plastic,
paper, and food scraps).