Communication of Critical Consciousness in Peasant Movement

Development discourse at grassroots level gave birth to farmers’movement as a counterhegemonic response to the dominant state development. Critical awareness of communication processes plays a major role in sensitizing the farmers on forms of oppression and transforming them into a practical movement. The use of the concept of consciousness raising in the form of channels of communication, forms of communication, and various techniques of awareness can affect awareness, motivation and identity transformation of the participants. This article aims to understand the communication processes generating awareness of the peasant movement in addressing growing issues and their relationships with participation in a collective action. Method of research used is qualitative approach with the case subjects involving 4 groups of farmers SPPQT basis (Serikat Paguyuban Petani Qaryah Thayyibah). The results show that participation in collective action is influenced by the communication process of critical awareness generated by SPPQT through the use of various communication channels both at base level and at the level of public. Critical awareness of communication carried out by SPPQT spawned a variety of critical awareness of participants because participants make different meanings of reality, and instrumental motivation is always inherent in any collective action

Studi Eksperimental Pengaruh Variasi Temperatur dan Waktu Penahanan Partitioning pada Proses Quenching-Partitioning Baja Jis S45c di Bawah Temperatur Martensite Start

Proses perlakuan panas quenching-partitioning merupakan proses perlakuan panas yang baru beberapa tahun ini dikembangkan. Proses ini mempunyai tahapan yang sama dengan proses perlakuan panas quenching-tempering. Bila pada proses quenching-tempering didapatkan fase akhir 100% tempered martensite, maka pada proses quenching-partitioning didapatkan fase akhir berupa tempered martensite dan retained autenite sehimgga dihasilkan baja yang tangguh dan ulet. Proses perlakuan panas quenching-partitioning dilakukan pada baja JIS S45C dengan pemanasan dalam dapur sampai temperatur austenisasi 900°C dengan waktu tahan 4 jam. Proses dilanjutkan dengan quenching ke dalam air selama 10 detik hingga mencapai temperatur 230°C lalu di-partition dalam furnace berisi campuran NaN03, KNO3, dan NaNO2, pada temperatur partitioning yang divariasikan 275°C, 300°C, 325°C, dan 350°C dengan variasi waktu penahanan 10 detik, 100 detik, dan 1000 detik kemudian di-quench kembali ke dalam air. Sifat mekanik dan struktur mikro dari material hasil proses perlakuan panas diuji dengan pengujian tarik, pengujian kekerasan, dan pengamatan menggunakan mikroskop optik. Hasil yang didapatkan dari penelitian ini adalah peningkatan temperatur dan waktu penahanan partitioning akan meningkatkan persentase pertambahan panjang (elongation), persentase penyusutan area (reduction area), dan ketangguhan baja JIS S45C, namun yield strength, kekuatan UTS, dan kekerasan menurun

Bending and Torsional Characteristics of Carbon Fiber and Balsa Wood Sandwich Composite

Bending properties and torsional stiffness of carbon fiber woven and balsa wood sandwich composites are studied and presented in this paper. Three point bending and torsional responses are tested with finite element\u27s software. The finite element method was employed to determine applied load, total deformation, and equivalent stress of sandwich beam with different number of carbon fiber woven layer and orientation. In this study, variations of adjustment layers with 3 types of fiber orientation (0o, 45o, 60o). The result indicated that adding more carbon fiber layer could improve mechanical properties for sandwich beam

Pengaruh Harga Dan Kualitas Pelayanan Terhadap Keputusan Penggunaan Kereta Api Fajar Utama Semarang Relasi Semarang – Jakarta

Price will be considered a person before buying anything. Especially in service's field, quality of service will be an additional consideration for a person berfore determining a choice of services. PT Kereta Api Indonesia (persero) will certainly pay attention to these two aspects in order to be a leader of mass land transport and become people's choice while many private vehicles increasingly then causing traffic jams on the road. The purpose of this study to determine the effect of price anda quality service to the USAge-decision of Fajar Utama Semarang train. This research method is an Explanatory with data collection through interviews, questionnaires anda literature study. Accidental and purposive samplings technique is used with a sample of 100 people. Anlysis technique used was qualitative and quantitative using validity, reliability test, correlation coefficient, simple and multiple regression analysis, the coefficient determination, cross-tab, and significance test (t test and F test).Conclusion the study shows the price and service quality simultaneously influence the USAge-decision of the passenger. This proved by the corellation coefficient score at 55,7% which in the strong category. Even so the determination coefficient score only at 31%. A good idea to PT Kereta Api Indonesia (persero) should pay attention to the price comparison with competitors. If the quality are not spesifically different, it will greatly affect consumer purchasing decisions. The company also should improve the service quality in order to improve passenger comfort on the trip

Effect of Photoperiodicity on Co2 Fixation by Chlorella Vulgaris Buitenzorg in Bubble Column Photobioreactor for Food Supplement Production

To reduce the level of CO2 content in air, effort on converting CO2 to useful products is required. One of thealternatives includes CO2 fixation to produce biomass using Chlorella vulgaris Buitenzorg. Chlorella vulgarisBuitenzorg is applied for production of food supplement. Chlorella vulgaris Buitenzorg is also easy to handle due to itssuperior adaptation. Currently, Chlorella vulgaris Buitenzorg has been analyzed by some experts for its cellularcomposition, its ability to produce high quality biomass and the content of essential nutrition. A series of experimentswas conducted by culturing Chlorella vulgaris Buitenzorg using Beneck medium in bubbling column photobioreactor.The main variation in this experiment was photoperiodicity, where growth of Chlorella vulgaris Buitenzorg wasexamined during photoperiodicity condition. The difference between CO2 gas concentration of inlet and outlet of thereactor during operational period, was compared to the same experiment under continuous illumination. Underphotoperiodicity of 8 and 9 h/d, the culture cell densities (N) were approximately 40 % higher than under continuousillumination. Final biomass density of Chlorella vulgaris Buitenzorg at 9 h/d illumination was 1.43 g/dm3, around 46%higher than under continuous illumination. Specific carbon dioxide transfer rate (qCO2) in photoperiodicity was 50-80%higher than under continuous illumination. These experiments showed that photoperiodicity affects the growth ofChlorella vulgaris Buitenzorg The specific growth rate (μ) by photoperiodicity was higher than that by continuousilumination while the growth period was two times longer. Based on the experiments, it can be concluded thatphotoperiodicity might save light energy consumption. The prediction of kinetic model under continuous illuminationas well as under photoperiodicity illumination showed that Haldane model became the fitted kinetic model

SUSTAINABLE SUPPLY CHAIN IN THE DEVELOPMENT OF RENEWABLE ENERGY BASE ON BAMBOO FOREST BIOMASS (DEVELOPMENT SOLUTION FOR UNDERDEVELOPED AREAS IN INDONESIA)

The main objective of this study is to examine, with a comprehensive systematic approach and framework for the analysis of the economic feasibility and methodology of the application of bamboo forest biomass technology as renewable energy for the environment and sustainable regional development.This study was conducted in the subdistricts of South Siberut and Central Siberut, Mentawai Islands district, West Sumatra, as an example for the economic development of underdeveloped areas that have bamboo forests suitable for renewable energy materials.The result is a sustainanle supply chain of renewable energy development that addresses technical complexity, economic scale, capital costs, and renewable energy funding challenges, for small to medium-sized projects and not connected to off-grid network