Joko Sriyanto | Yogyakarta State University (original) (raw)

Papers by Joko Sriyanto

Research paper thumbnail of The role of districts in supporting school leaders’ instructional leadership: a view and experience from a developing country

Journal of Educational Administration , 2019

Research paper thumbnail of Effects of Fuel Injection Pressure to Fuel Consumption and Exhaust Gas Emissions of SI Engine

Journal of Physics: Conference Series, 2019

The present study investigated the effects of fuel injection pressure to fuel consumption and exh... more The present study investigated the effects of fuel injection pressure to fuel consumption and exhaust gas emissions for the Spark Ignition (SI) engine. A series of experiments were carried out in 4-cylinders gasoline engine with capacity of 1500 cc. The default fuel injection pressure was 2.8 kg/cm2. In this study, the fuel injection pressures were varied from 1.4 to 4.2 kg/cm2. The engine speeds were retained on 800, 2000, and 3000 rpm. Fuel consumption was evaluated by using a burette under static condition and a gas analyser was used to measure exhaust gas emission. As a result, fuel injection pressure affects significantly to the
fuel consumption and exhaust gas emission. The lowest fuel consumption and gas (CO and HC)
emissions were reached when the injection pressure was 2 kg/cm2 for all engine speeds. When
the injection pressure indicated above and below the default engine specification, a higher fuel
consumption and gas emission occurred. Therefore, a better control of the fuel injection system
needs to be considered during the engine operation to reduce fuel consumption and exhaust gas
emission.

Research paper thumbnail of SCHOOL CULTURE AND PROFESSIONAL DEVELOPMENT OF SCHOOL TEACHERS FROM URBAN AND RURAL AREAS IN CHINA

Rural teacher recruitment and retention has become a common concern globally including in China. ... more Rural teacher recruitment and retention has become a common concern globally including in China. In order to understand the underlying reasons that cause rural teachers' attrition, this study aims to explore the school culture and professional development of the teachers from urban and rural areas of China provinces, by examining three study objectives: teaching location and socio-demographic factor; challenges faced by rural teachers; and strategies to develop teaching professionalism in rural schools. A mixed-method approach involving survey forms and interview sessions was used for data collection. Data were analyzed using SPSS and ATLAS.ti which included inferential and thematic analysis. A number of 1547 teachers under Compulsory Education in Jiangxi, China were involved as participants. Results indicated that teaching location is significantly related to the socio-demographic condition. Additionally, five challenges reported by rural school teachers include parental involvement, working environment, salary, personal growth, and family environment. Meanwhile, three main strategies used for professional development are educational beliefs, collaboration relationships, and teacher self-training. The outcome of this study would contribute towards effective and feasible measures to stabilize rural teachers, promote educational and social equity, and promote the integration of urban and rural teachers. Findings conclude the importance to explore further and propose the corresponding measures to improve the working and living status of rural teachers. Keywords: compulsory education, living and working conditions, school culture, teaching professionalism, rural and urban areas BUDAYA SEKOLAH DAN PENGEMBANGAN PROFESIONAL GURU SEKOLAH PERKOTAAN DAN PEDESAAN DI CHINA Abstrak: Perekrutan dan retensi guru di sekolah pedesaan telah menjadi perhatian global, termasuk China. Penelitian ini bertujuan untuk mengeksplorasi guru perkotaan dan pedesaan dalam kaitannya dengan budaya sekolah dan pengembangan profesional dengan meneliti: lokasi kerja dan sosio-demografi; tantangan yang dihadapi oleh guru pedesaan; dan strategi untuk meningkatkan profesionalisme pengajaran di sekolah-sekolah pedesaan. Metode campuran (Mixed Method) yang melibatkan survei dan sesi wawancara digunakan untuk pengumpulan data. Penelitian ini melibatkan 1.547 guru dari sekolah jenjang Wajib Belajar di Jiangxi, China. Data dianalisis menggunakan SPSS dan ATLAS.ti, termasuk untuk analisis inferensial dan tematik. Hasil penelitian menunjukkan bahwa lokasi mengajar secara signifikan berkorelasi dengan sosio-demografi. Selain itu, lima tantangan dilaporkan oleh guru sekolah pedesaan terdiri dari: keterlibatan orang tua; lingkungan kerja; gaji; pengembangan pribadi; dan lingkungan keluarga. Sementara tiga strategi utama digunakan untuk peningkatan profesionalisme adalah: cara pandang terhadap pendidikan; hubungan kolaborasi; dan pelatihan mandiri guru. Hasil dari penelitian ini akan memberikan kontribusi terhadap langkah-langkah yang efektif dan layak untuk menstabilkan jumlah guru pedesaan, mendorong kesetaraan pendidikan dan sosial, dan mempromosikan integrasi guru perkotaan dan pedesaan. Temuan penelitian menyimpulkan bahwa penting untuk mengeksplorasi lebih lanjut dan mengusulkan langkah-langkah yang sesuai untuk meningkatkan status kerja dan kehidupan guru pedesaan. Kata Kunci: wajib belajar, kondisi kerja dan kehidupan, budaya sekolah, profesionalisme mengajar, pedesaan dan perkotaan

Research paper thumbnail of Pengaruh Tipe Busi Terhadap Emisi Gas Buang Sepeda Motor

Automotive Experiences, Jan 1, 2018

Artikel ini menyajikan hasil penelitian tentang pengaruh tipe busi terhadap emisi gas buang seped... more Artikel ini menyajikan hasil penelitian tentang pengaruh tipe busi terhadap emisi gas buang sepeda motor. Pengujian dilakukan di Bengkel Prototype Honda Jurdiknik Otomotif FT UNY dengan obyek uji adalah sepeda motor 4 tak 135 cc pada putaran mesin 1500, 3000, dan 5000 rpm. Masing-masing pengujian dilakukan pengulangan sebanyak 3 kali untuk mendapatkan hasil yang lebih akurat. Hasil penelitian menunjukkan bahwa jika dibandingkan dengan pemakaian busi standar, busi platinum menurunkan kadar emisi CO 20% dan HC 41%, busi iridium menurunkan kadar CO 29% dan HC 61%, dan pemakaian busi multi elektrode menurunkan kadar CO 8% dan HC 29%.

Books by Joko Sriyanto

Research paper thumbnail of Leading and Managing Schools in Indonesia: Historical, Political and Socio-cultural Forces

Perspectives on School Leadership in Asia Pacific Contexts, 2019

The leadership practices in Indonesia has evolved significantly over time. This reflects the spir... more The leadership practices in Indonesia has evolved significantly over time. This reflects the spirit of different eras and the adoption of various leadership theories. More specifically, government systems and socio-political situations have played a major role in helping to shape Indonesia’s education sector. These forces also influence school leadership, in particular, how school principals lead and manage their
schools in Indonesia. The colonial era, which had a different purpose to schooling, provided the foundations needed for Indonesia’s independence. There were significant developments in the 1970s when Indonesia’s New Order government expanded the scope of the education sector.This, however, had little impact on school leadership practices. It was only in the 2000s when the education system began to decentralize
and this brought about a corresponding change in school leadership practices. This new approach introduces standard requirements, systematic training, and appointment by district government for principals, albeit not without challenges.

Research paper thumbnail of The role of districts in supporting school leaders’ instructional leadership: a view and experience from a developing country

Journal of Educational Administration , 2019

Research paper thumbnail of Effects of Fuel Injection Pressure to Fuel Consumption and Exhaust Gas Emissions of SI Engine

Journal of Physics: Conference Series, 2019

The present study investigated the effects of fuel injection pressure to fuel consumption and exh... more The present study investigated the effects of fuel injection pressure to fuel consumption and exhaust gas emissions for the Spark Ignition (SI) engine. A series of experiments were carried out in 4-cylinders gasoline engine with capacity of 1500 cc. The default fuel injection pressure was 2.8 kg/cm2. In this study, the fuel injection pressures were varied from 1.4 to 4.2 kg/cm2. The engine speeds were retained on 800, 2000, and 3000 rpm. Fuel consumption was evaluated by using a burette under static condition and a gas analyser was used to measure exhaust gas emission. As a result, fuel injection pressure affects significantly to the
fuel consumption and exhaust gas emission. The lowest fuel consumption and gas (CO and HC)
emissions were reached when the injection pressure was 2 kg/cm2 for all engine speeds. When
the injection pressure indicated above and below the default engine specification, a higher fuel
consumption and gas emission occurred. Therefore, a better control of the fuel injection system
needs to be considered during the engine operation to reduce fuel consumption and exhaust gas
emission.

Research paper thumbnail of SCHOOL CULTURE AND PROFESSIONAL DEVELOPMENT OF SCHOOL TEACHERS FROM URBAN AND RURAL AREAS IN CHINA

Rural teacher recruitment and retention has become a common concern globally including in China. ... more Rural teacher recruitment and retention has become a common concern globally including in China. In order to understand the underlying reasons that cause rural teachers' attrition, this study aims to explore the school culture and professional development of the teachers from urban and rural areas of China provinces, by examining three study objectives: teaching location and socio-demographic factor; challenges faced by rural teachers; and strategies to develop teaching professionalism in rural schools. A mixed-method approach involving survey forms and interview sessions was used for data collection. Data were analyzed using SPSS and ATLAS.ti which included inferential and thematic analysis. A number of 1547 teachers under Compulsory Education in Jiangxi, China were involved as participants. Results indicated that teaching location is significantly related to the socio-demographic condition. Additionally, five challenges reported by rural school teachers include parental involvement, working environment, salary, personal growth, and family environment. Meanwhile, three main strategies used for professional development are educational beliefs, collaboration relationships, and teacher self-training. The outcome of this study would contribute towards effective and feasible measures to stabilize rural teachers, promote educational and social equity, and promote the integration of urban and rural teachers. Findings conclude the importance to explore further and propose the corresponding measures to improve the working and living status of rural teachers. Keywords: compulsory education, living and working conditions, school culture, teaching professionalism, rural and urban areas BUDAYA SEKOLAH DAN PENGEMBANGAN PROFESIONAL GURU SEKOLAH PERKOTAAN DAN PEDESAAN DI CHINA Abstrak: Perekrutan dan retensi guru di sekolah pedesaan telah menjadi perhatian global, termasuk China. Penelitian ini bertujuan untuk mengeksplorasi guru perkotaan dan pedesaan dalam kaitannya dengan budaya sekolah dan pengembangan profesional dengan meneliti: lokasi kerja dan sosio-demografi; tantangan yang dihadapi oleh guru pedesaan; dan strategi untuk meningkatkan profesionalisme pengajaran di sekolah-sekolah pedesaan. Metode campuran (Mixed Method) yang melibatkan survei dan sesi wawancara digunakan untuk pengumpulan data. Penelitian ini melibatkan 1.547 guru dari sekolah jenjang Wajib Belajar di Jiangxi, China. Data dianalisis menggunakan SPSS dan ATLAS.ti, termasuk untuk analisis inferensial dan tematik. Hasil penelitian menunjukkan bahwa lokasi mengajar secara signifikan berkorelasi dengan sosio-demografi. Selain itu, lima tantangan dilaporkan oleh guru sekolah pedesaan terdiri dari: keterlibatan orang tua; lingkungan kerja; gaji; pengembangan pribadi; dan lingkungan keluarga. Sementara tiga strategi utama digunakan untuk peningkatan profesionalisme adalah: cara pandang terhadap pendidikan; hubungan kolaborasi; dan pelatihan mandiri guru. Hasil dari penelitian ini akan memberikan kontribusi terhadap langkah-langkah yang efektif dan layak untuk menstabilkan jumlah guru pedesaan, mendorong kesetaraan pendidikan dan sosial, dan mempromosikan integrasi guru perkotaan dan pedesaan. Temuan penelitian menyimpulkan bahwa penting untuk mengeksplorasi lebih lanjut dan mengusulkan langkah-langkah yang sesuai untuk meningkatkan status kerja dan kehidupan guru pedesaan. Kata Kunci: wajib belajar, kondisi kerja dan kehidupan, budaya sekolah, profesionalisme mengajar, pedesaan dan perkotaan

Research paper thumbnail of Pengaruh Tipe Busi Terhadap Emisi Gas Buang Sepeda Motor

Automotive Experiences, Jan 1, 2018

Artikel ini menyajikan hasil penelitian tentang pengaruh tipe busi terhadap emisi gas buang seped... more Artikel ini menyajikan hasil penelitian tentang pengaruh tipe busi terhadap emisi gas buang sepeda motor. Pengujian dilakukan di Bengkel Prototype Honda Jurdiknik Otomotif FT UNY dengan obyek uji adalah sepeda motor 4 tak 135 cc pada putaran mesin 1500, 3000, dan 5000 rpm. Masing-masing pengujian dilakukan pengulangan sebanyak 3 kali untuk mendapatkan hasil yang lebih akurat. Hasil penelitian menunjukkan bahwa jika dibandingkan dengan pemakaian busi standar, busi platinum menurunkan kadar emisi CO 20% dan HC 41%, busi iridium menurunkan kadar CO 29% dan HC 61%, dan pemakaian busi multi elektrode menurunkan kadar CO 8% dan HC 29%.

Research paper thumbnail of Leading and Managing Schools in Indonesia: Historical, Political and Socio-cultural Forces

Perspectives on School Leadership in Asia Pacific Contexts, 2019

The leadership practices in Indonesia has evolved significantly over time. This reflects the spir... more The leadership practices in Indonesia has evolved significantly over time. This reflects the spirit of different eras and the adoption of various leadership theories. More specifically, government systems and socio-political situations have played a major role in helping to shape Indonesia’s education sector. These forces also influence school leadership, in particular, how school principals lead and manage their
schools in Indonesia. The colonial era, which had a different purpose to schooling, provided the foundations needed for Indonesia’s independence. There were significant developments in the 1970s when Indonesia’s New Order government expanded the scope of the education sector.This, however, had little impact on school leadership practices. It was only in the 2000s when the education system began to decentralize
and this brought about a corresponding change in school leadership practices. This new approach introduces standard requirements, systematic training, and appointment by district government for principals, albeit not without challenges.