Diversity of Organic Produce in Indonesia

Organic farming in Indonesia has been developed quite pass in the last five years. This evidence was pushed by increasing the demand either in domestic or in foreign market. The increase of demand was due to the icrease of awareness of society to healthy and savety food for people. Related to this isues the Government of Indonesia has built an Organic Farming Competence Authority （OKPO）. This Competent has responsibilities to facilitate and administrate organic farming business in Indonesia. The diversity of organic produced in Indonesia is mostly paddy/rice, and followed by other organic products such as nutmeg, cashew nut, cinnamon, capsicum, mangosteen, brown sugar or other coconut products, cocoa bean, coffee bean, clover, pepper, Zalacca, lychee, longan, duku （lanseh） and some fruits and vegetables. Mostly organic produce is exported to foreign coutries. There are also some assosiations such as Indonesia Organic Aliance （AOI）, Indonesia Farmer Organic Assosiation （APOI）, Community Concern Organic Farmer （CCOF） who support the development of organic movement. Certification Body for Competency of Inspectors and Facilitators for organic divelopment either for plant or livestock has just been established.

Impact of combining chlorine dioxide and chlorine on DBP formation in simulated indoor swimming pools

The main objective of this study was to assess the combined use of chlorine dioxide（ClO_2）and chlorine（Cl_2） on the speciation and kinetics of disinfection by-product（DBP） formation in swimming pools using synthetic pool waters prepared with a body fluid analog（BFA）and/or fresh natural water. At 1：25（mass ratio） of ClO_2 to Cl_2, there was no significant reduction in the formation of trihalomethanes（THMs） and haloacetic acids（HAAs） for both BFA solution and natural water compared to the application of Cl_2 alone. When the mass ratio of ClO_2 to Cl_2increased to 1：1, substantial decreases in both THMs and HAAs were observed in the natural water, while there was almost no change of DBP formations in the BFA solution. Haloacetonitriles and halonitromethanes levels in both water matrices remained similar. In the presence of bromide, the overall DBP formation increased in both BFA solution and natural water. For the DBP formation kinetics, after 72 hr of contact time,very low formation of THMs and HAAs was observed for the use of ClO_2 only. Compared to Cl_2 control, however, applying the 1：1 mixture of ClO_2/Cl_2 reduced THMs by 〉 60% and HAAs by 〉 50%. Chlorite was maintained below 1.0 mg/L, while the formation of chlorate significantly increased over the reaction time. Finally, in a bench-scale indoor pool experiment, applying ClO_2 and Cl_2simultaneously produced less THMs compared to Cl_2 control and kept chlorite at 〈 0.4 mg/L, while HAAs and chlorate accumulated over 4-week operation period.

Reflections on the past and future of urban conservation in Iran

The material authenticity of cultural heritage has been questioned by societies in which the modern paradigm of conservation has not developed from within the native culture.This paper examines the philosophical and practical traditions in Iran regarding the materiality and authenticity of past structures.By reviewing the emergence of the Western conservation paradigm in Iran,this paper highlights two key factors:the rapidness of this paradigm shift and the remarkable contradiction between the new and old paradigms.By borrowing the Deleuzo-Guattarian concept of a‘body without organs’(BwO),this paper problematises the rapidness and radicality of the paradigm shift in Iran.It suggests exploring the under-investigated possibilities between the pre-modern and modern paradigms to address the gap between native circumstances and Western standards.