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Introduction: Allergies can cause complications such as inadequate nutrition, impaired sleep quality, and inhibition of child growth and development. There were about 15% children who suffered from dust allergies in 2017 in Indonesia. Parents lacking of knowledge about environmental control can increase the prevalence of allergic relapse in children. Counselling is a method of health education that aims to improve knowledge, and practice. The purpose of this study was to investigate whether counselling has any influence on allergic related knowledge and environmental control measures skills.Methods: The design of study was a pre-experiment design. There were 14 respondents in this study who were recruited at a university hospital based on inclusion criteria with consecutive sampling. The independent variable was counselling, the dependent variable were knowledge and environmental control measures. Data were collected using both a questionnaire was developed from the AAAAI and a check list was used to determine parents' skills on environmental controls. Data were analysed using Wilcoxon Sign Rank Test with significance level of α<0,05.Results: There was an influence of counselling on knowledge and environmental control measures (knowledge level, p= 0,001; practice level p= 0,001).Conclusion: It is concluded that counselling is significantly increased knowledge and environmental control measures level.

Research portfolio optimal aims to understand return and risks portfolio, and know how much teh proportion of funds invested. The period used in this reseach was februari 2011-januari 2016. Population to research there are stock companies joined in LQ-45 index. The sample of the research are 21 sample. The data collected is secondary data. Tekhnik data analysis used in research this is the kind of index singular to know shares from portrfolio optimal. Shares who was a candidate portfolio optimal are stocks having the value ERB greater than or equal to cut off-rate. Portfolio optimal formed by the shares having value ERB more of the value of cut of rate that is 0.0031. Based on the research done showed 10 stock who was a candidat portfolio optimal from 21 sample. The propotion of funds drom 10 company is: UNVR of 31.18%, ICBP of 20.40%, GGRM of 5.84%, BBCA of 14.83%, CPIN of 5.05%, JSMR of 10.08%, LPKR of 4.82%, BBRI of 6.01%, INTP of 1.16%, dan BMRI of 0.63%. Expected return portfolio receive is 1.73% monthly with the risk 0.2%. the conclusion that obtained was that investors rational to invest the funds to into the optimal portfolio of 10 shares formed.Keyword : investation, optimal stock