No abstract

The construction industry, with its long supply chain and long lifetime of projects, is blamed to be one of the main contributors to environmental concerns including accelerated resource consumption and harmful emissions. Industry stakeholders, including developers, designers, contractors and suppliers, are, therefore, continuing to explore different options to reduce this impact. Various approaches have been adopted in different countries with building rating systems like the Leadership in Energy & Environmental Design (LEED) certification program being the most common way reflecting stakeholders’ efforts to go green. Governments and concerned authorities at national and state levels are expected to foster the trend of sustainable construction by motivating these stakeholders and pursuing policies that would help the green momentum. However, decision makers at such governmental and state levels face a challenge of prioritizing the policies and regulations that should be imposed. The objective of this paper is to present the development of a framework of an Agent Based Model (ABM) that simulates the effect of different possible policies in the construction market using Life Cycle Analysis (LCA), which is to be used by decision makers to assess and prioritize different policies or combination of policies. The framework was developed using Anylogic software and a sample construction market from the state of Qatar was used as an example for implementing the proposed framework. Results of running the model on this sample market illustrate the effectiveness of using this ABM as a support tool for decision makers in the area of sustainable construction.

Background Studies have suggested that Sexual behaviors are common in children. More than 50% of children will engage in some type of sexual behavior before their 13th birthday. Sexual behaviors in children range from normal and developmentally appropriate to abusive and violent. In retrospective study of 339 child welfare and mental health professionals in which participants were asked about their own experiences before 13 years of age, 73% recalled engaging in sexual behaviors with other children, 34% recalled showing their genitals to another child, 16% recalled simulating intercourse with another child, and 5% recalled inserting an object in the vagina or rectum of another child Aim of the Work To observe the developmental course of describe normative sexual behaviors in 2- to 12-years-old Egyptian children and to assess the relative frequencies of different types of sexual behaviors in general outpatient clinic of pediatric hospital of Ain Shams University hospitals. Patients and Methods This is a Cross sectional analytical started on October 2018. Study conducted in pediatric hospital Ain Shams University hospitals. This present study aimed at analyzing the data of 500 children aged from 2 to 12 years old. Thirsty four refused to participate on sexual behaviour questions. Results A total of 500 questionnaires were done by parents of child vising clinic of pediatric hospital of Ain Shams university, 35 refused to participate in sexual behaviour questionnaire. It was divided in three groups. Preschool aged children from 2-6 years 254 child (50.8%), school aged children from 6-9 years 106 child (18.82%) & preadolescents from 10 to 12 years 140 child (24.014%). The study Included both 252 males and 248 females. The most sexual behaviours detected among children “sometimes” were touching genitals at home 111(22.2%), child asks about sexual acts 86 child (17.2%) & saying sexual words 80 (16%) and mostly repeated children was flirt with strangers 11(2.2%) & asking about sex more than other children 10 (2%). Conclusion In general, sexual behaviors in children two to five years of age are of a greater variety and are more common compared with the behaviors in children older than five years. once the child becomes aware of social rules regarding sexual behaviors in public, those behaviors become more covert. There is a need for further national studies in different settings, to help create a better understanding of what constitutes both normative and deviant sexual behaviour in children.