bluuebunny/crossref_metadata_2025 huggingface dataset:
First-principles study of calcium-based sulfur fixers and their products
Authors: Chen Guoyan , Chen Jianing , Zhang Anchao , Deng Haoxin , Mei Yanyang , Wen Xiaoping , Wang Fahui , Sheng Wei , Shen Zheng , Zuo Shuangshuang
Published: December 2021

Calcium-based sulfur-fixing agent, as the main sulfur-fixing product, is widely used in power plant boiler systems. In order to further study the thermodynamic properties and reaction characteristics of calcium-based sulfur fixing agent and its products, the method of combining power plant experiment with theory was used. The electronic structure, thermodynamic properties and density of states of quicklime, limestone, calcium sulfate (CaSO4) and calcium sulphoaluminate have been calculated based on the first-principles ultra-soft pseudopotential plane wave method of density functional theory. The generalized gradient approximation algorithm is used to optimize the structure of various minerals to achieve the most stable state. The results show that the enthalpy, entropy, specific heat capacity at constant pressure and Gibbs free energy of calcium sulfonate vary greatly from 25-1000 K, while the change of calcium oxide (CaO) is small, and that of calcium carbonate (CaCO3) and CaSO4 are between them. It shows that calcium sulphoaluminate has strong stability and more energy is needed to destroy the molecular structure of calcium sulphoaluminate. The CaO is the most unstable and requires less energy to react. The CaCO3 and CaSO4 are in between. The variation range of CaSO4 is greater than that of CaCO3, indicating that the stability of CaSO4 is higher than that of CaCO3. The experimental results show that the desulfurization efficiency of generating calcium sulphoaluminate is much higher than that of only generating CaSO4, indicating that calcium sulphoaluminate is very stable, which is consistent with the calculated results.
Effect of three and five holes nozzle on thermal efficiency and emission characters of DI-CI diesel engine with lemongrass biodiesel as alternate fuel
Authors: Kotaiah Kolla , Pitchaipillai Periyasamy , Muthuswamy Prabhahar , Seker Prakash , Krishnamoorthi Sangeetha
Published: December 2021

The performance and emissions characters of Diesel engine behavior depend largely on several criteria, fuel injection nozzle plays a vital role in the proper combustion of Diesel engines. This research analyzes the impact of a nozzle hole configuration on the features of a biodiesel-fuelled Diesel engine. Therefore, the causes are dependent on the modification that the nozzle hole was selected from three-hole and five-hole nozzles, while the engine characteristics of the lemongrass biodiesel blend with diesel were examined. Lemongrass biodiesel with 20% blend, LGB B20, has been investigated experimentally with different engine loads with respect to brake power, three-hole, and five-hole nozzles. The experimental investigation showed an improvement in peak i.e. highest heat release rate of 12.5% for three- and five-hole nozzle and brake specific fuel consumption of 15% is increased in single hole nozzle and it is observed it?s diminished in three- and five-holed nozzle. Further, the brake thermal efficiency is increased in the five-hole nozzle in comparison to the three-hole nozzle at full load condition. Furthermore emission characteristics like HC, CO, and smoke are de-creased with an increase in the number of nozzles, at the penalty of increase in NOx emissions has been observed.
Evaluation of the influence of terrain and traffic road conditions on the driver’s driving performances by applying machine learning
Authors: Vujanovic Davor , Jankovic Sladjana , Stokic Marko , Zdravkovic Stefan
Published: December 2021

In this paper, research is done in the influence of different terrain and traffic conditions on road sections on the driver?s driving performances, i.e. on the car energy efficiency and CO2 emission. A methodology aimed at determining to which extent unfavorable traffic and/or terrain conditions on a road section contribute to the driver?s worse driving performances, and also to determine when the driver?s aggressive driving style is responsible for greater fuel consumption and greater CO2 emission is proposed. In order to apply the proposed methodology, a research study was carried out in a cargo transportation company and 12 drives who drove the same vehicle on five different road sections were selected. As many as 284014 of the instances of the data about the defined parameters of the road section and the driver?s driving style were collected, based on which and with the help of machine learning a prediction of the scores for the road section and the scores for the driver?s driving style was performed. The obtained results have shown that the proposed methodology is a useful tool for managers enabling them to simply and quickly determine potential room for increasing the energy efficiency of the vehicle fleet and decreasing CO2 emission.
Response to comment on: “A critical review on heat and mass transfer modelling of viral infection and virion evolution the case of SARS-COV2”
Authors: Trancossi Michele , Pascoa Jose , Sharma Shivesh
Published: December 2021

The paper contains a response to the comment by Popovich and Mincheva, focusing on the different meanings of the analysis according to the First and the Second law of thermodynamics and their complementary and never alternative nature.
Nilai Karakter Siswa pada Kegiatan Ekstrakurikuler
Authors: Bakri Abu Rizal , Sutrisno Sutrisno , Mushafanah Qoriati
Published: January 2022

Banyaknya masalah karakter yang dialami oleh Indonesia menguatkan urgensi penerapan pendidikan karakter. Selain itu, masalah moral yang terjadi akhir-akhir ini, seperti kasus kekerasaan di sekolah, kasus bullying, kasus pelecehan seksual dan masih banyak kasus yang lainnya. Tujuan penelitian ini untuk menganalisis nilai-nilai karakter yang terdapat dalam kegiatan ekstrakurikuler menggambar di Sekolah Dasar. Jenis penelitian ini adalah penelitian kualitatif dengan metode deskriptif. Teknik pengumpulan data dalam penelitian ini menggunakan observasi, wawancara, dan dokumentasi. Sumber data dalam penelitian ini berasal dari kepala sekolah, guru pengajar ekstrakurikuler menggambar, guru kelas 1 dan 5, siswa yang mengikuti ekstrakurikuler menggambar. Hasil penelitian menunjukkan bahwa nilai-nilai karakter yang terdapat dalam pembelajaran ekstrakurikuler menggambar, meliputi nilai disiplin, toleransi, mandiri, cinta damai, peduli sosial, peduli lingkungan, dan tanggung jawab yang telah dijabarkan dan sudah tercermin pada diri siswa yang mengikuti ekstrakurikuler menggambar. Nilai-nilai karakter yang terdapat dalam pembelajaran ekstrakurikuler menggambar sudah memenuhi dan sesuai dengan indikator nilai-nilai karakter yang diharapkan. Implikasi penelitian ini yaitu dapat memberikan pemahaman mengenai analisis nilai karakter dalam kegiatan ekstrakulikuler menggambar, sehingga dapat memberikan kontribusi dalam pencapaian prestasi siswa dan sekolah.
Kompetensi Kepribadian dan Motivasi Mengajar Berpengaruh Terhadap Kinerja Guru PAUD
Authors: Kartika Ni Komang , Ambara Didith Pramunditya
Published: January 2022

Masih rendahnya kompetensi kepribadian dan motivasi guru PAUD dalam mengajar terlihat dari guru yang masih cenderung mengedepankan pedagogik dan akademik daripada pengembangan kompetensi kepribadian dan terlihat guru yang masih sering datang terlambat serta kurangnya minat guru  dalam membuat media pembelajaran yang baru dengan rancangan pembelajaran yang lebih menarik sehingga hal ini mempengaruhi kinerja guru. Oleh karena itu, penelitian ini bertujuan untuk menganalisis pengaruh dari kompetensi kepribadian dan motivasi mengajar terhadap kinerja guru PAUD. Penelitian ini merupakan jenis penelitian ex-post facto. Jumlah populasi dalam penelitian ini yaitu 103 guru dengan jumlah sampel sebanyak 82 orang. Metode pengumpulan data yang digunakan dalam penelitian ini yaitu dengan metode non tes berupa penyebaran kusioner. Instrumen yang digunakan menggunakan jenis kuisioner tertutup. Data penelitian yang diperoleh dianalisis menggunakan analisis statistik deskriptif dan analsis statistik inferensial dengan teknik analisis regresi linier sederhana dan analisis regresi linier berganda. Hasil penelitian menunjukan bahwa terdapat pengaruh yang signifikan antara kompetensi kepribadian dan motivasi mengajar terhadap kinerja guru (thitung 30,620 > tTabel 3,17). Sehingga, disimpulkan bahwa terdapat pengaruh yang signifikan kompetensi kepribadian dan motivasi mengajar terhadap kinerja guru PAUD. Implikasi dari penelitian ini yaitu hasil penelitian ini dapat digunakan sebagai refrensi terkait dengan hubungan antara kompetensi kepribadian dan motivasi mengajar guru PAUD terhadap kinerja guru.
D-learning model on Physics Instrumentation Course for Optimizing Performance Skills
Authors:   Physics Education Study Program, University of Lampung, Indonesia, Suyatna Agus , Viyanti Viyanti ,   Physics Education Study Program, University of Lampung, Indonesia, Andra Doni ,   Physics Education Study Program, University of Lampung, Indonesia, Rakhmawati Ismi ,   Biology Education Study Program, University of Lampung, Indonesia
Published: December 2021

The COVID-19 pandemic has forced the implementation of lectures at universities to be fully carried out online or distance learning (d-learning). On the course that have sub- learning achievements of performance assessment, they experience many obstacles in achieving the learning objectives of that domain. The purpose of this study was to develop an online d-learning model for the Physics Instrumentation course based on Moodle that was valid to optimize performance skills, effective, and have high practicality for students of the Physics Education Study Program. The research method used R&D. The development procedure was carried out based on the ADDIE model covering five main activity stages, which are analysis, design, development, implementation, and evaluation. In this article, is reported until development stage. Data was collected using a questionnaire distributed using google forms. Data analysis included needs analysis, design suitability test, content/material test, construct test, language, and product readability test. The results of this study concluded that online d-learning model based on Moodle for Physics Instrumentation course was valid for optimizing the performance skills of students of the Physics Education Study Program because it had learning activities of reading e-Modules, watch videos of practice procedures and how to use measuring instruments, performing measurement simulations using virtual instruments, working on the task of making simple instruments with stages of activities according to the Engineering Design Process (EDP) model, discussing procedures for using the most appropriate measuring instruments, self-reflection on the materials that have and not been mastered and follow-up plans.
Development of Mechatronics Trainers as Practical Learning Media for Electrical Engineering Vocational Education Students
Authors:   Sultan Ageng Tirtayasa University, Serang City-Banten, Indonesia, Irwanto Irwanto , Ekawati Ratna ,   Sultan Ageng Tirtayasa University, Serang City-Banten, Indonesia
Published: December 2021

This study aims to produce a mechatronics trainer and jobsheet product as a practical learning medium in mechatronics courses, as well as to determine the feasibility level of mechatronics trainer and jobsheet products. The research method used is development research. The development used adopts the ADDIE model which consists of five stages, namely analyze, design, development, implementation, and evaluation. Data collection techniques used include interviews, observations, and questionnaires. Testing the feasibility level of the mechatronics trainer involving four media experts and four material experts, as well as users was carried out by students of the sixth semester of 2018 electrical engineering vocational education study program. The data analysis technique used is descriptive qualitative and quantitative analysis. The results obtained for the media expert feasibility test score of 93.63 with a very decent category, for the material expert score obtained 90.76 including the very feasible category, and the results obtained from users with a score of 88.76 so it can be stated that mechatronics trainers and jobsheets can be used as media mechatronic practice learning in the electrical engineering vocational education study program.
Posyandu During the COVID-19 Pandemic: Diversification and Participation
Authors: Meilinda Selvi Diana , Utami Anisa , Yulianto - , Cahyaningtias Akgis
Published: December 2021

This paper explains the participation of mothers, toddlers and the elders in Posyandu activities, and the diversification of posyandu cadre service strategies during the COVID-19 pandemic. Before the COVID-19 pandemic mothers, toddlers and elders people actively participate in every posyandu activity in Kampung Kagungan Rahayu, Tulang Bawang Regency, Lampung Province. This high participation is due to posyandu cadres who understand their role in realizing basic health services. During the COVID-19 pandemic, posyandu was held with attention to developments in the COVID-19 case. Based on this, posyandu cadres play an active role in diversifying service strategies so that participation of mothers, infants and elders remains high. The diversification strategies include the first posyandu cadres tidy up data on the health development of mothers, toddlers and elders. Second, posyandu cadres visit mothers, toddlers and elders directly from door to door by observing health protocols. Third, the cadres hold posyandu activities at the auxiliary puskesmas (pustu) in waves or in turns. Fourth, they also conducted direct monitoring and evaluation of services during the pandemic by telephone between the posyandu cadre leaders. We contend that the diversification of the service strategy has an impact on the high level of community participation in accessing posyandu during the COVID-19 pandemic.
Pelatihan Alat Musik Gamolan Lampung untuk Forum Mulei Menganai Panaragan sebagai Peningkatan Keterampilan Kesenian Tradisional Lampung di Tiyuh Panaragan Kabupaten Tulang Bawang Barat
Authors: Barnawi Erizal
Published: December 2021

Pembelajaran pokok bahasan Musik sebagai bagian dari media kerterampilan seni dan budaya di Forum Muli Menganai Panaragan Kampung Panaragan, Kabupaten Tulang Bawang Barat yang selama ini kurang memenuhi tingkat kreatifitas dan pengembangan seni budaya Lampung. Pelajaran biasanya sekedar diisi dengan bernyanyi klasikal dilanjutkan individual, kurang menyiratkan unsur-unsur musik yang sedemikian kaya terutama unsur irama dan unsur melodi.

Alat musik Gamolan merupakan salah satu alat musik tradisi yang sangat praktis, sangat memungkinkan para muda mudi Tiyuh Panaragan menggunakan alat musik tersebut sebagai media pembelajaran dan menguntungkan dalam upaya meningkatkan penguasaan pemuda dalam hal unsur-unsur irama dan unsur-unsur melodi tersebut. Jika para muda mudi Tiyuh Panaragan mampu memainkan Gamolan lambat laun akan mempunyai rasa puas dan rasa irama yang benar.

Kegiatan ini dibatasi pada pelatihan memainkan alat musik Gamolan dengan beberapa lagu yaitu: tabuh layang kasiwan dan tabuh alau-alau, tabuh rajo menggalo, tabuh sermendung sirlia, dan tabuh gupek dan tabuh tari dalam iringin tari Sigeh Penguten.

Metode ceramah oleh pelaksana untuk menjelaskan manfaat kemampuan bermain Gamolan, bagian-bagian Gamolan, dan cara bermain Gamolan yang baik dan benar. Serta, memperagakan secara langsung oleh pelaksana pengabdian untuk memberikan contoh memainkan Gamolan dengan tabuh layang kasiwan, tabuh Alau-alau. tabuh rajo menggalo, tabuh sermendung sirlia, dan tabuh gupek dan tari dalam iringin tari Sigeh Penguten
Pelatihan Dikte dalam Bahasa Prancis bagi Siswa Tingkat Sekolah Menengah Atas Se-Lampung
Authors: Nevira trisna Indah
Published: December 2021

Bunyi pelafalan khas yang menjadi ciri bahasa ini menjadi daya tarik bagi orang yang ingin mempelajarinya.  Selain bunyi, sistem ortografi bahasa Prancis pun sedikit berbeda dari bahasa Latin.  Dikte merupakan kegiatan pembelajaran bahasa untuk melatih tidak hanya kemampuan menyimak tetapi juga menulis, tata bahasa, kosakata, dan ejaan.  Pelatihan ini dihadiri 15 peserta dari Sekolah Menengah Atas se-Lampung. Secara umum, pelatihan ini dapat dikatakan berhasi. Hal ini dapat dibuktikan adanya berubahan yang cukup signifikan pada nilai pre-test dan post-test. Terdapat 66% peserta mengalami perubahan yang cukup signifikan  dan 33% peserta yang tidak mengalami perubahan hasil pada tes. Nilai tertinggi yaitu 48/50 dan nilai terendah adalah 0.
Quantity and Quality in Staple Food Security from Legal Prefect
Authors: Khoiriyah Siti
Published: December 2021

Dalam menganalisa perihal ketahanan pangan merupakan hal yang terpenting karena pangan harus dipenuhi oleh manusia terkhusus masyarakat Indonesia. Pangan  merupakan kebutuhan dasar manusia dan menjadi isu yang rumit sehingga akan mempengaruhi aspek,  politik, sosial, ekonomi dan lingkungan. Dalam aspek politik maka haruslah pemerintah mempunyai kebijakan terhadap pangan termasuk strategi ketahanan pangan yang mana sebagai negara hukum maka pangan sebagai mestinya tercantum di perundang-undangan dan memberikan hal yang efektif dalam strategi ketahanan pangan dan untuk masyarakat indonesia itu sendiri . Disamping itu ada  data-data pendukung serta fakta yang terjadi yang memengaruhi  implementasi peraturan perundang-undang tersebut. Hal ini dapat menjadikan tolak ukur keefektifan peraturan perundang-undangan   dengan meninjau kuantitas dan kualitas pada ketahanan pangan pokok.unsur kuantitas dipengaruhi oleh jumlah beras dan kegiatan impor secara langsung berkaitan dengan perlindungan lahan pertanian dan kemudian dari unsur kualitas dipengaruhi mutu dan standar beras itu sendir yang diawasi oleh pemerintah dan pemerintah daerah.
Pelatihan Model Pembelajaran Speaking dengan Communicative Approach Bagi Guru-Guru Bahasa Inggris di Kabupaten Lampung Selatan
Authors: Setiyadi Bambang , Mahpul - , Sukirlan Muhammad , Putrawan Gede Eka
Published: December 2021

The speaking learning model with communicative approach has been widely adopted in various countries as a method of learning English because speaking learning with communicative approach proved effective to facilitate students actively involved in the learning process of English, especially speaking. The effectiveness / success of speaking learning by communicative approach as a way of English education in helping students improve speaking skills is evidenced by the discovery of some research tried in various countries where English as a foreign language. However, in Indonesia this method is still not popular and very few teachers or practitioners apply this method. Therefore, this community service activity aims to help English teachers in South Lampung Regency improve insight and knowledge about the development / creation of a speaking learning model based on communicative approach through training and workshops by presenting material development of task-based speaking teaching materials theoretically; and conduct simulations of the development of task-based speaking teaching materials. The results of the training showed that the participants of this training gained real efficacy is an increase in professionalism in order to be able to correct the quality of the English education process, especially speaking so that the dialogue skills of students in schools face an increase. Prolonged similar training in the future still really needs to be tried.
Pelatihan Pembuatan Bahan Ajar Speaking Berbasis Rekayasa Faktor Kognitif (Task Complexity) bagi Guru-Guru SMA/SMK Di Kabupaten Pringsewu
Authors: Mahpul - , Setiyadi Bambang , Sukirlan Muhammad , Putrawan Gede Eka
Published: December 2021

Task complexity-based learning approaches have been widely adopted in countries especially where English is a foreign language, Chinese, Japanese, Arabic, Iranian, and Korean. However, most English teachers do not yet understand the method of learning English based on task complexity so they lack confidence in applying the method.. Therefore, this community service activity aims to increase insight and knowledge about the development / creation of a speaking learning model based on cognitive factor engineering (task complexity). This activity will target English teachers at high school / vocational school in Pringsewu Regency and is expected to improve their professionalism to improve the quality of the English learning process, especially speaking. This activity will be carried out with lecture methods, discussions, practices, and simulations that will begin with a pre-test and end with a post-test. Based on initial and final abilities, there are quite real differences before and after the training is done. To that end, this training has been able to improve the insight and Manufacture of Teaching Materials Based on Cognitive Factor Engineering (Task Complexity). Some participants showed that the enthusiasm and belief of the participants that the Manufacture of Speaking Teaching Materials Based on Cognitive Factor Engineering (Task Complexity) has a positive impact to develop students' ability to master their English learning in the classroom.
Diseminasi Model Perlindungan Hak Kekayaan Intelektual Produk Kain Organik pada Komunitas Kahut Sigerbori di Labuhan Ratu Bandar Lampung
Authors: Siregar Naek , Putri Ria Wierma , Rehulina - , Tahar Abdul Muthalib
Published: December 2021

Gerakan mempromosikan produk lokal dan ramah lingkungan meningkat seiring dengan meningkatnya kesadaran masyarakat untuk lebih menjaga lingkungan. Salahsatu usaha lokal di Bandar Lampung yang mendukung prinsip ramah lingkungan adalah Kahut Sigerbori yang merupakan usaha kain dengan pewarnaan alami dan organik bahkan motif shibori menggunakan flora alami. Pertumbuhan usaha lokal yang ramah lingkungan mendorong persaingan antar para usahawan sehingga mereka harus meningkat kreativitas dan kekhasan produk masing masing. Kekhasan produk menjadi nilai tambah yang akan meningkatkan nilai produk tersebut. Tetapi kekhasan ini juga dapat membuka peluang ketertarikan usahawan lain untuk meniru design, menggunakan merek yang sama tanpa izin ataupun membuat produk yang mirip. Kecurangan ini dapat dicegah apabila pemilik asli melakukan perlindungan terhadap produk ciptaannya yaitu Perlindungan hak kekayaan intelektual (HAKI). Namun terkadang pemilik tidak memahami bagaimana cara memperoleh perlindungan tersebut, mengetahui namun berpikir prosedurnya akan sangat rumit atau tidak memahami secara pasti bentuk HAKI yang tepat untuk produk usahanya. Terutama apabila berkaitan dengan metode tradisional, dilakukan oleh grup dan bukan merupakan pencipta pertama. Permasalahan ini sering dialami oleh para usahawan yang bergerak dibidang kerajina seperti halnya komunitas Kahut Sigerbori. Ada beberapa opsi yang dapat diterapkan untuk melindungi HAKI bagi produk kerajinan tangan Kahut Sigerbori dengan melihat tiap elemen elemen yang dapat dilindungi seperti design dilindungi hak cipta, tehnik pewarnaan dan pemotifan dengan perlindungan pengetahuan tradisional, organisme yang digunakan dapat dilindungi dengan sumber daya genetic serta dapat dimungkinkan apabila produk tersebut menggunakan bahan dari daerah geografis tertentu maka dapat dilindungi indikasi geografis bahkan paten jika terdapat inovasi baru.
Konseling Karir Virual untuk Meningkatkan Kematangan Karir Kelas XII di Masa Pandemi
Authors: Tunggali Ade Putranto Prasetyo Wijiharto
Published: December 2021

Kematangan karir pada siswa biasanya dihubungkan dengan kesiapan memasuki perguruan tinggi, pengetahuan tentang pilihan program studi di perguruan tinggi, pengetahuan tentang dunia pekerjaan, dan informasi – informasi yang berkaitan dengan dunia perguruan tinggi dan pekerjaan lainnya. Kondisi yang tidak menentu akibat Covid-19 ini menjadikan siswa memiliki kebingungan dalam menentukan kariernya, sehingga menjadikan siswa memiliki kematangan karir yang rendah. Padahal sangat penting bagi siswa memiliki kematangan dalam karirnya, karena hal tersebut berkaitan erat dengan karir masa depan siswa itu sendiri. Kondisi ketidakmatangan karir ini tampak pada beberapa siswa SMA Kelas XII SMA Negeri 1 Sedayu yang ditandai dengan tidak percaya diri dengan kemampuan yang dimiliki untuk melanjutkan ke perguruan tinggi, masih bingung untuk menentukan jurusan kuliah yang cocok dengan kemampuan yang dimiliki, masih ragu untuk melanjutkan kuliah karena kondisi perekonomian kedua orangtuanya yang menurun terdampak pandemi Covid-19. Di lain sisi, siswa – siswa tersebut juga sangat khawatir jika ingin bekerja tidak adanya lowongan kerja setelah lulus karena maraknya PHK. Oleh karena itu, ketidakmatangan karir ini perlu diatasi melalui program “Konseling Karir Virtual Untuk Meningkatkan Kematangan Karir Siswa Kelas XII Sma Negeri 1 Sedayu Di Masa Pandemi Covid-19”. Konseling karir secara luas digunakan untuk mengatasi masalah yang dihadapi siswa sehingga performance belajarnya prima. Sementara tujuan spesifik konseling karir adalah membantu siswa mengambil keputusan berkaitan dengan pilihan – pilihan karir setalah lulus SMA. Sementara itu, dipilihnya media virtual ini karena menurut Connolly & Stansfield (2006), saat ini penerapan teknologi dalam pendidikan telah memasuki generasi keenam, yang merupakan generasi ketiga dari e-learning. Generasi ini dikembangkan lingkungan belajar yang lebih kolaboratif yang didasarkan pada epistimologi konstruktivisme yang mendorong praktek refleksi melalui alat-alat seperti e-portfolio dan online-communities. Luaran dari kegiatan pengabdian kepada masyarakat adalah artikel ilmiah dan video konseling karier.

Keywords: Layanan Konseling, Karir Development, Virtual, Pandemi Covid-19,
Transfer Teknologi Aeroponik Untuk Produksi Benih Kentang di Kelompok Tani Mulya Bersama, Kabupaten Banjarnegara, Propinsi Jawa Tengah
Authors: Sumarni Eni
Published: December 2021

Kelompok Tani Mulya Bersama memiliki kendala kontinuitas produksi benih kentang, penurunan kesuburan lahan dan penyakit nematoda sista kuning yang menyerang umbi kentang sehingga menurunkan produksi. Selain itu, penanaman kentang di lahan terbuka menghadapi cuaca ekstrem yaitu turunnya frost (embun beku) yang mematikan tanaman. Kelompok Tani memproduksi kentang dengan metode konvensional, hasil benih kentang rendah (<10 umbi/tanaman), selain itu produksi benih kentang belum belum diperoleh nutrisi yang optimal. Kondisi ini menyebabkan hanya dapat memenuhi 30% permintaan. Oleh karena itu tim Penerapan IPTEK memberikan transfer teknologi aeroponik dan nutrisi hasil paten untuk peningkatan jumlah benih kentang. Tujuan kegiatan ini: 1) Penerapan teknologi aeroponik produksi benih kentang, 2) Penerapan dan pengelolaan nutrisi hasil paten untuk peningkatan jumlah benih (> 25 umbi/tanaman). Metode yang dilakukan: 1) Transfer teknologi tahapan produksi benih kentang secara aeroponik dan membuat demplot, 2) Transfer teknologi pengelolaan nutrisi untuk produksi benih kentang secara aeroponik, dan 3) Pindah tanam bibit aeroponik serta pengamatan pertumbuhan dan perkembangan tanaman. Hasil kegiatan ini diperoleh bahwa pemahaman kelompok tani terhadap transfer teknologi ini mengalami peningkatan mencapai 85-87% dari sebelumnya 3-5%. Keberlanjutan transfer teknologi ini mendapat dukungan dari Kelompok Tani Mulya Bersama dengan melakukan penambahan box aeroponik secara mandiri sebanyak 4 box (memiliki panjang 40 m).
PENGARUH MEDIA PEMBELAJARAN TEKA-TEKI SILANG (TTS) TERHADAP HASIL BELAJAR KOGNITIF PELAJARAN IPS KELAS III
Authors: Indah Tri Murti Intan , Trio Pangestu Widya , Rias Wana Prima
Published: December 2021

Penelitian ini bertujuan untuk 1) mendeskripsikan penerapan media TTS mata pelajaran IPS; 2) mengetahui peran media TTS pada hasil belajar kognitif IPS siswa kelas III SDN Karangbanyu 03 Kabupaten Ngawi Tahun Ajaran 2020/2021. Berdasarkan jenisnya, penelitian ini merupakan penelitian kuantitatif. Desain penelitian ini melibatkan satu kelompok (satu kelas) saja sehingga digunakan one group pretest-posttest design. Responden pada penelitian ini berjumlah 20 orang siswa. Teknik analisis data yang digunakan pada penelitian adalah uji homogenitas, uji normalitas dan uji t Dua Sampel. Hasil penelitian menemukan bahwa (1) Penerapan media TTS mata pelajaran IPS pada siswa kelas III SDN Karangbanyu 03 Kabupaten Ngawi Tahun Ajaran 2020/2021 dapat dijadikan sebagai solusi hasil belajar siswa yang kurang baik, perhatian siswa yang kurang ketika pembelajaran, serta menjadi alternatif media pembelajaran untuk menyajikan pelajaran IPS. Melalui media TTS pembelajaran IPS semakin menarik perhatian siswa, siswa lebih bersemangat dalam bertanya maupun menyampaikan pendapat sehingga mampu mendorong siswa mencapai hasil belajar yang lebih baik. (2) Penggunaan media TTS berpengaruh signifikan terhadap hasil belajar kognitif mata pelajaran IPS. Nilai yang dicapai siswa meningkat dari pre test ke post test dengan memanfaatkan media pembelajaran TTS. Hal ini terbukti dari nilai thitung pada penelitian ini adalah sebesar 21,512 dengan nilai signifikansi sebesar 0,000 < 0,05.
PANDEMI COVID-19 INDONESIA: KAJIAN PEMIKIRAN, KEBIJAKAN RITUAL IBADAH, DAN EKONOMI ISLAM (MAQASID ASY-SYARIAH)
Authors: Rahman Aziibur , Pujianto Wahyu Eko , Salmon Indra Pratama
Published: December 2021

Since Covid-19 pandemic occurred, the government and authorities in Indonesia have restricted almost all community activities in Indonesia, including various activities in houses of worship having an impact on the socio-economic vulnerability of Muslims. This study was to describe the phenomenon of the condition of Muslims affected by the pandemic, by providing a Muslim perspective as well as explaining how Islam responds to the epidemic phenomenon, restriction policies, and socio-economics. This study applied a literature study with a qualitative approach to obtain descriptive and qualitative analytical data. The data were collected through reviewing literature and data about the current situation of Covid -19 pandemic and the ongoing dynamics of Muslim people. This study was a literature study collaborating between Islamic perspectives with contemporary phenomena and theories so that they contributed to strengthening the argument that Islam and its experiences were still very relevant to today's conditions. The result showed that: first, Islam provided jabariyah and qadariyah perspectives for Muslims in responding to the pandemic phenomenon; second, Islam provided relevant perspectives in policy formulation during the pandemic, and; third, Islam emphasized that Maqasid Asy-Sharia was a strategy and concept in overcoming the economic vulnerability of the community during and after the pandemic.
SUNDA WIWITAN DI ERA POST-TRUTH: STRATEGI BERTAHAN KOMUNITAS LOKAL DI ERA GLOBALISASI
Authors: Jubba Hasse , Adila Nispi Amalia , Herianto Herianto , Septiani Triana
Published: December 2021

The existence of the Sunda Wiwitan community in Cireundeu Traditional Village has been faced with the threat of massive technological advances. Massive penetration of technology has caused indigenous people to use and accept technology as a necessity. In line with this, this paper was to explain how the sustainability and survival strategy of Sunda Wiwitan people in post truth era. This paper was based on data collected through direct observation and interviews with five different informants by taking into account the characteristics of each. The result showed that there was a strong influence between technology and the existence of Sunda Wiwitan as indigenous people. Indigenous people were able to adapt to all existing openness. This study confirmed that today's indigenous people still prevented their customs. Therefore, the existence of local communities needed to be guaranteed through various schemes, including supporting regulations that were protective in nature.
Drawing Distinctions: Assyrians and Others in the Art of the Neo-Assyrian Empire
Authors: Miller Eva
Published: December 2021

Between the ninth and seventh centuries BCE, the Neo-Assyrian Empire became the largest the world had yet seen. In the process of imperial conquest, the Assyrian state incorporated previously foreign territories and people into their world. Landscapes, materials, and the labor of conquered bodies became a part of the Assyrian royal palaces of northern Iraq, both as elements of their construction and as themes emphasized within the extensive visual programs of the palace reliefs. Within and through visual depiction of enemy bodies and foreign landscapes, in the process of being (often violently) reshaped by Assyrian hands, Neo-Assyrian kings brought the farthest reaches of their world into the center of imperial power. This article considers how specific strategies of representation in palace art allowed the Assyrian palace to serve as a microcosm of the empire and a map of its borders. Palace art emphasized the remade, reworked, or recreated, defining “Assyrianness” as that which remakes and has been remade. As a central act of remaking, I examine representations of captive or submissive foreigners, whose presence in the reliefs commemorates their humiliation while compounding and enhancing it in the very ways that these figures are depicted: cringing, deficient, and physiologically incorrect. I pay particular attention to examples from the late King Ashurbanipal’s reign, in which foreign leaders are singled out through representation with distinctive facial features. I argue that this act of (literally) drawing distinctions was an inherently imperial process, one that both expressed and enabled an ideology of expansion and control.
Foreigners and Religion at Ugarit
Authors: Válek František
Published: December 2021

During the Late Bronze Age, Syria was mostly dominated by the larger powers of the ancient Near East—Mitanni (the Hurrians), the Hittite Empire, and Egypt. The ancient city of Ugarit yielded numerous texts and artifacts that attest to the presence of foreigners and their influences on local religious traditions. Textually, the best-preserved influences are those of Hurrian origin, although these were probably promoted thanks to the Hittites, who incorporated many Hurrian deities and cults. Hurrian traditions thus influenced both Ugaritic cults and divine pantheons. Egyptian influences, in contrast, are observable mostly in art and material evidence. Art of Egyptian origin was considered prestigious and because of that was prominently seen in trade and international exchange gifts, but it also entered the religious sphere in the form of cultic statues and ex-voto gifts for deities. Egyptian art was also often imitated by local artists. The same can be said of art from the Mediterranean area. Some evidence suggests that foreigners actively related to local traditions as well. Ritual tablets from Ugarit (namely KTU3 1.40 and its variants) illustrate that there were always frictions in a multicultural/national society. These tablets also indicate that such frictions could have been dealt with through ritual action, and thus emphasize the role religion played. The city of Ugarit is used in this paper to illuminate some processes that can be observed in the whole of ancient Syria. Nevertheless, every site has its own outcome of interactions with other cultures.
Kings of Chaldea and Sons of Nobodies: Assyrian Engagement with Chaldea and the Emergence of Chaldean Power in Babylonia
Authors: Nielsen John
Published: December 2021

From the ninth century until the last quarter of the seventh century BCE, the Assyrian Empire first extended its power over Babylonia and then engaged in a prolonged effort to retain control. The patchwork nature of Babylonian society—divided as it was between the traditional urban centers, territories controlled by five distinct Chaldean tribes, and regions inhabited by Aramaean tribes—presented opportunities and challenges for Assyria as it sought to assert its dominance. Assyrian interactions with the Chaldean tribes of Babylonia redefined the Chaldeans’ place within power relationships in southern Mesopotamia. Starting in 878, Assyria first perceived Chaldean territory as distinct from what they defined as Karduniaš, the land ruled by the king of Babylon. Shalmaneser III exploited and accentuated this division by recognizing the Chaldean leaders as kings and accepting their tribute even as he concluded a treaty with the Babylonian king, Marduk-zakir-shumi I. By decentralizing power in Babylonia, Assyria was able to assert indirect control over Babylonia. However, periods of Assyrian weakness created opportunities for several Chaldeans—drawing upon the economic and military power they could muster—to claim the title of king of Babylon with all the accompanying ideological power. These new developments prompted Assyria under the Sargonids to create counter-narratives that questioned the legitimacy of Chaldeans as kings of Babylon by presenting them as strange and inimical to the Assyrian order even as Assyrian interactions with the Chaldeans improved Assyrian familiarity with them.
Ways of Being: Hittite Empire and Its Borderlands in Late Bronze Age Anatolia and Northern Syria
Authors: Durusu-Tanrıöver Muge
Published: December 2021

In this paper, I take identity as a characteristic of empire in its periphery, denoting the totality of: 1) the imperial strategies an empire pursues in different regions, 2) the index of empire in each region, and 3) local responses to imperialism. My case study is the Hittite Empire, which dominated parts of what is now modern Turkey and northern Syria between the seventeenth and twelfth centuries BCE, and its borderlands.
To investigate the identities of the Hittite imperial system, I explore the totality of the second millennium BCE in two regions. First, I explore imperial dynamics and responses in the Ilgın Plain in inner southwestern Turkey through a study of the material collected by the Yalburt Yaylası Archaeological Landscape Research Project since 2010. Second, I explore the identity of the Hittite Empire in the city of Emar in northern Syria by a thorough study of the textual and archaeological material unearthed by the Emar Expedition. In both cases, I argue that the manifestations of the Hittite Empire were mainly conditioned by the pre-Hittite trajectories of these regions. The strategies that the administration chose to use in different borderlands sought to identify what was important locally, with the Hittite Empire integrating itself into networks that were already established as manifestations of power, instead of replacing them with new ones.
Reduction of the auto seismic component of error of a ballistic laser gravimeter by excitation of an induction-dynamic catapult from an AC voltage source
Authors: Bolyukh Vladimir , Vinnichenko Оleksandr , Omelchenko Anatolii
Published: December 2021

The purpose of the study is to analyse the influence of the excitation of an induction-dynamic catapult of a ballistic laser gravimeter from an AC voltage source at different frequencies on electromechanical indicators that provide a reduced value of the auto seismic component of error in measuring the gravitational acceleration g due to a decrease in the recoil force. A mathematical model of the gravimeter catapult when excited from an AC voltage source is proposed, taking into account the interrelated electrical, magnetic and mechanical processes. The nature of the electromechanical processes in the catapult of the gravimeter with such excitation has been established. It is shown that a phase shift occurs between the currents in active elements, as a result of which positive (repulsive) pulses of the electrodynamic force alternate with negative (attractive) pulses of force. A criterion for the efficiency of the gravimeter catapult has been introduced, taking into account the maximum value of push of the test body at the smallest values of the electrodynamic force and current of the inductor winding. It was found that the highest efficiency of the gravimeter catapult is provided at a frequency of 250 Hz, at which the catapult efficiency is 3.5 times higher than at a frequency of 50 Hz. It is shown that the transition from the method of excitation of an induction-dynamic catapult with one short pulse to excitation from an AC voltage source makes it possible to reduce the uncertainty in measuring the gravitational acceleration.
Precision active power measuring channel
Authors: Ornatskyi Dmytro , Yehorov Sergey , Kataieva Maria , Graf Maryna , Shcherbyna Dmytro
Published: December 2021

The article is devoted to increasing the reliability, noise protection and improving the metrological characteristics of active power measuring converters. Much attention is paid to the problem of developing effective methods for constructing structural diagrams of active power measuring converters. This is explained by the growing requirements for the basic metrological characteristics of active power measuring converters as elements of information – measuring systems.

The main attention in the work is paid to the development of ways to correct the influence of destabilizing factors in working conditions. The undoubted advantage of the work is a thorough analysis of the instrumental errors of the measuring channel, the original means of correction of the phase error and the error due to the limited suppression coefficients of in-phase interference.

The obtained simulation results in the Electronics Workbench environment made it possible to determine the most effective way to protect against interference.
Minimization of errors in discrete wavelet filtering of signals during ultrasonic measurements and testing
Authors: Taranenko Yuri , Mygushchenko Ruslan , Kropachek Olga , Suchkov Grigoriy , Plesnetsov Yuri
Published: December 2021

Error minimizing methods for discrete wavelet filtering of ultrasonic meter signals are considered. For this purpose, special model signals containing various measuring pulses are generated. The psi function of the Daubechies 28 wavelet is used to generate the pulses. Noise is added to the generated pulses. A comparative analysis of the two filtering algorithms is performed. The first algorithm is to limit the amount of detail of the wavelet decomposition coefficients in relation to signal interference. The minimum value of the root mean square error of wavelet decomposition signal deviation which is restored at each level from the initial signal without noise is determined. The second algorithm uses a separate threshold for each level of wavelet decomposition to limit the magnitude of the detail coefficients that are proportional to the standard deviation. Like in the first algorithm, the task is to determine the level of wavelet decomposition at which the minimum standard error is achieved. A feature of both algorithms is an expanded base of discrete wavelets ‒ families of Biorthogonal, Coiflet, Daubechies, Discrete Meyer, Haar, Reverse Biorthogonal, Symlets (106 in total) and threshold functions garotte, garrote, greater, hard, less, soft (6 in total). The model function uses random variables in both algorithms, so the averaging base is used to obtain stable results. Given features of algorithm construction allowed to reveal efficiency of ultrasonic signal filtering on the first algorithm presented in the form of oscilloscopic images. The use of a separate threshold for limiting the number of detail coefficients for each level of discrete wavelet decomposition using the given wavelet base and threshold functions has reduced the filtering error.
Quasi-Associative Algebras on the Frobenius Lie Algebra M_3 (R)⊕gl_3 (R)
Authors: Henti Henti , Kurniadi Edi , Carnia Ema
Published: December 2021

In this paper, we study the quasi-associative algebra property for the real Frobenius  Lie algebra  of dimension 18. The work aims  to prove that  is a quasi-associative algebra and to compute its formulas explicitly. To achieve this aim, we apply the literature reviews method corresponding to Frobenius Lie algebras, Frobenius functionals, and the structures of quasi-associative algebras. In the first step, we choose a Frobenius functional determined by direct computations of a bracket matrix of  and in the second step, using an induced symplectic structure, we obtain the explicit formulas of quasi-associative algebras for . As the results, we proved that  has the quasi-associative algebras property, and we gave their formulas explicitly. For future research, the case of the quasi-associative algebras on   is still an open problem to be investigated. Our result can motivate to solve this problem.
Mathematical-Analytical Thinking skills: The Impacts and Interactions of Open-ended Learning Method & Self-Awareness (Its Application on Bilingual Test Instruments)
Authors: Anggoro Bambang Sri , Puspita Nurul , Pratiwi Dona Dinda , Agustina Safitri , Komala Ramadhana , Widyastuti Rany , Widyawati Santi
Published: December 2021

Analytical thinking is a skill to unite the initial process, plan solutions, produce solutions, and conclude something to produce conclusions or correct answers. This research aims to 1) determine whether there are differences in students' mathematical, analytical thinking skills between classes that use the Open-ended learning method and classes that use the lecturing method, 2) to find out whether there are mathematical, analytical thinking skills differences between students with high, moderate, and low self-awareness criteria, and 3) to find out whether there is an interaction between Open-ended learning method and self-awareness toward students' mathematical-analytical thinking skills. This research employs a quasi-experimental design. Based on the data and data analysis, this research is mixed-method research, and the design used in this research is the posttest control group design. This research was conducted on students who have studied the Real Analysis Courses. Based on the results of hypothesis testing, it was found out that, first, there are differences in students' mathematical-analytical thinking skills between the class that uses the Open-ended learning method and the class that uses the lecturing method. Second, there are mathematical-analytical thinking skills differences between high, moderate, and low self-awareness criteria. Third, there is no interaction between the Open-ended learning method with self-awareness of students' mathematical-analytical thinking skills.
Students Abstract Thinking Abilities in terms of Mathematical Disposition
Authors: Nurrahmah Arfatin , Agustina Lasia , Nurhayati Nurhayati
Published: December 2021

This research aims to describe students abstract thinking abilities in the probability theory course in terms of mathematical disposition. The research method used is descriptive research with a qualitative approach. The research subjects were 5th-semester students who took probability theory courses. Determination of subjects using purposive sampling techniques. Instruments used include test results of mathematical abstract thinking abilities, disposition questionnaires, interview guidelines, and researchers as the key instruments. Analysis data using the Miles model and Huberman includes data reduction, display data and conclusion drawing/verification. The research results are, Subject 1 (S1) is in the high mathematical disposition category, fulfills three indicators of abstract thinking abilities, namely transforming problems into symbols, manipulation process of abstract mathematical objects, and the formation of mathematical concepts related to other concepts. Subject 2 (S2) is in the medium mathematical disposition category, fulfilling two indicators of abstract thinking abilities, namely transforming problems into symbols and the manipulation process of abstract mathematical objects, the formation of mathematical concepts related to other concepts. Subject 3 (S3) is in the low mathematical disposition category, it only fulfills one indicator of the abstract thinking abilities, namely transforming problems into symbols.