bluuebunny/crossref_metadata_2025 huggingface dataset:
MASS BALANCE APPROACH AT PALM CARBON CYCLE
Authors: Kahar Abdul
Published: November 2022

Development of Indonesian palm oil industry, not only contributes positively to economic sector. Biggest challenge lies in the negative issues of oil palm development, namely environmental issues. Land use change, forest clearing, deforestation, peat land for palm plantation expansion are environmental issues because they are considered to disturb the balance of greenhouse gases. The use of non-standard fertilizers and POME processing can also increase CO2 emissions, which in turn will reduce carbon storage in vegetation and soil. Soil is the most potent organic carbon sink compared to plants. Soil is an organic carbon pool (reservoir) that accumulates organic carbon in and organic carbon out. The accumulated carbon is influenced by aboveground biomass, belowground biomass, necromass, litter and soil organic matter. So that the development of oil palm is accused of being one of the factors that play a role in soil organic carbon (SOC), soil carbon loss (SCL), net carbon balance (NCB), or greenhouse gasses (GHG) emissions. Where this is a very important component in the palm carbon cycle that has an impact on the global climate. The mass balance approach to the palm carbon cycle obeys the law of conservation of mass. The mass of palm carbon before and after processing is constant. This means that the total mass of palm carbon during the process does not change, only a phase change occurs, namely solid, liquid, and gas.
IRON ADSORPTION IN PEAT WATER BY SAGO WASTE ACTIVATED CARBON
Authors: Harivram Awali Sir Kautsar , Syauqiah Isna , Elma Muthia , Rampun Erdina Lulu Atika , Putri Dina Amryna Chairul , Safitri Namira Ghina
Published: November 2022

In South Kalimantan, peat water is the main water sources for local people. But peat water has high iron content. It cannot be consumed directly and need further treatment. Adsorption is the most common technology to treat peat water. The goal of this research is to study sago waste adsorbent for iron removal in peat water. Citric acid was employed as activating agent in the sago waste activated carbon adsorbent fabrication. Carbonization process was done at 300 ℃ with 70, 80, 90, 100, 110 and 120 minutes of time variation. After treatment using the adsorbent, iron content was tested via Atomic Absorption Spectrophotometry (AAS). While, Fourier Transform Infra-Red (FTIR) were carried out to investigate the functional groups of sago pith waste activated carbon (SPWAC) and sago pith waste unactivated carbon (SPWUC). The experiment results show iron could be removed until 82% with iron concentration of 0.05 mg/l at 80 minutes. SPWAC and SPWUC have functional groups such as alkenes (C-H and C=C), carbonyl (C=O and C-O) and hydroxyl (O-H). Fe concentrations are still meet water quality standard according to No. 492/Menkes/PER/IV/2010 which is 0.3 mg/L. Therefore, adsorption uses sago pith waste activated carbon is an effective and inexpensive water treatment.
DESIGN OF COMMUNAL WASTEWATER TREATMENT PLANT (CASE STUDY IN DEPOK VILLAGE, TRENGGALEK, EAST JAVA)
Authors: Sari Ratih Arum , Pribadi Arqowi , Nurmaningsih Dyah Ratri , Nengse Sulistiya , Yustrianti Yustrianti
Published: November 2022

Planning for a communal scale Wastewater Treatment Plant (WWTP) in Depok Village, Trenggalek Regency, East Java is needed because most of the wastewater in Depok Village is only treated with septic tanks. This study aims to plan a communal scale WWTP design based on the generation of domestic and non-domestic wastewater in Depok Village. The WWTP planning in this study was carried out based on the results of laboratory test parameters for pH, TSS, BOD, COD, total coliform, fatty oil, and ammonia. Based on the test results, it is known that the parameters exceed the required limits according to the Minister of Environment Regulation No. 68 of 2016 is the parameter of TSS, ammonia, and total coliform. The units that are planned are barscreen unit is planned to have a length of 8.65 m, a width of 2.65 m, and a depth of 3 m. The initial settling basin is planned to have a length of 11 m, a width of 3 m, and a depth of 4 m. The anaerobic biofilter unit is planned to have a length of 15 m, a width of 7.5 m, and a depth of 2.5 m. The aerobic biofilter unit is planned to have a length of 16.5 m, a width of 8.5 m, and a depth of 2 m. The final settling basin is planned to have a length of 37 m, a width of 18.5 m and a depth of 2.5 m. The control body is planned to have a length of 9.5 m, a width of 5 m and a depth of 2 m. Meanwhile, disinfection is planned using a disinfectant pump.
DESIGN OF PACKED TOWER ABSORBER FOR CARBON DIOXIDE ABSORPTION BY POTASSIUM HYDROXIDE ABSORBENT
Authors: Huda Faisal , Qomariyah Nuril , Udyani Kartika
Published: November 2022

Absorpsi merupakan salah satu metode yang digunakan untuk memisahkan gas CO2 dalam suatu campuran gas. CO2 perlu dihilangkan karena akan menganggu suatu proses pabrik dan dapat menyebabkan polusi udara.  Penelitian dilakukan dengan tujuan untuk memperoleh desain kolom absorber tipe packed tower dan mengetahui pengaruh konsentrasi dan laju alir absorben KOH terhadap removal CO2. Tahap pertama yang dilakukan yaitu menentukan desain kolom pada kondisi laju alir CO2 2 L/menit dengan laju alir absorben KOH 0,1N 2 L/menit. Uji kinerja absorber dilakukan dengan variasi laju alir absorben 1 L/menit; 1,25 L/menit; 1,5 L/menit; 1,75 L/menit; dan 2 L/menit pada konsentrasi KOH 0,1 N; 0;3 N; dan 0,5 N. Berdasarkan analisa asidi-alkalimetri diperoleh removal CO2 tertinggi mencapai 95,743% pada laju alir absorben KOH 0,5N sebesar 2 L/menit, pada kolom absorber dengan diameter 5,96 cm dengan tinggi kolom 84,5 cm menggunakan ceramic-rasching ring 13 mm yang diisikan mencapai ketinggian 83,5 cm. Hasil penelitian menunjukkan bahwa peningkatan laju alir volumetrik dan konsentrasi KOH sebagai absorben menyebabkan nilai removal CO2 semakin besar.
PROCESSING OF TEMPE LIQUID WASTE IN STAGES USING COMBINATION OF COAGULATION AND ELECTROCOAGULATION METHODS
Authors: Cundari Lia , Adin Faisal Akbar , Jannah Asyeni Miftahul , Santoso Dyos
Published: November 2022

The purpose of this study was to determine the effect of slow stirring time of flocculation and stress on the electrocoagulation process on turbidity levels and pH values of tempe liquid waste. The research method used is a combination of coagulation and electrocoagulation processes carried out in batches. Variations carried out were slow stirring time of flocculation (10, 15, 20, 25 and 30 minutes) and variation of voltage (3,6, and 9 volts). The results showed that the stirring time and electrocoagulation voltage affected the turbidity of the tempe liquid waste but did not affect the pH level of the tempe liquid waste. The best slow flocculation time was 20 minutes with a turbidity yield of 31.04 NTU and a percent removal of turbidity of 91.56%. The electrocoagulation voltage of 9 volts resulted in a turbidity of 2.01 NTU and a percent turbidity removal of 93.52%.
SYNTHESIS OF NATURAL GELATIN-BASED HARD CAPSULE SHELL FROM CASSAVA STARCH AND HIBISCUS LEAVES GEL
Authors: Mardina Primata , Usman Usman , Anggara Muhammad Apriliawan Yoga
Published: November 2022

The aim of this work was to prepare gelatin-based hard capsule shells from natural sources, cassava starch and hibiscus leaves. The effects of composition between cassava starch and hibiscus leaves, and temperature on capsule characteristic was investigated. Extraction and gelatinization were the main method which used in this study. A different compositions of cassava starch and hibiscus leaves gel was added into boiling flask for gelatinization for 2 h. Temperature was maintained at 50, 70 and 100 oC. The optimum resultwas obtained at ratio 8:1 of cassava starch and hibiscus leaves gel with 100 oC operation temperature which has specification  7.60% of ash content, 11.24% of moisture, and 15 min dissolution time.According to the result, this study is expected to be used as a reference for the development of natural gelatin-based hard capsule shell synthesis.
PEMBELAJARAN DARING BERBASIS PENDIDIKAN KARAKTER
Authors: Marshinta Fransisca Ully , Oktanisa Silvana , Maja Ibnu
Published: November 2022

Tujuannya penelitian ini untuk mengetahui bagaimana implementasi pembelajaran daring berbasis pendidikan karakter jujur, disiplin, mandiri dan tanggung jawab pada mata pelajaran PPKn. Metode yang digunakan adalah penelitian deskriptif dengan pendekatan kualitatif dengan metode snowball dan teknik proporsive sampling. Hasil yang didapat dalam penelitian ini menyatakan bahwa dalam pembelajaran daring sekolah atau guru tidak menyediakan lembar aktivitas belajar, tidak ada hukuman bagi peserta didik yang melanggar aturan pembelajaran daring, tidak melakukan kunjungan ke rumah peserta didik bermasalah dalam mengikuti pembelajaran daring selain itu tidak pernah memberikan hadiah bagi peserta didik yang berprestasi selama pembelajaran daring. Namun, upaya menerapkan pendidikan karakter sudah terlihat dari penilaian yang transparan, ketepatan waktu pengumpulan tugas serta bentuk-bentuk soal yang mendidik peserta didik tidak mencontek. Pembelajaran daring berbasis karakter berdaya manfaat apabila dalam pelaksanaannya mengikutsertakan lebih aktif orang tua atau wali dalam proses pembelajaran baik pada saat mulai sampai berakhirnya pembelajaran daring tersebut Kata Kunci: Pembelajaran Daring, Pendidikan Karakter, PPKn
Integrasi Kewarganegaraan Digital dalam Mata Kuliah Pendidikan Kewarganegaraan untuk Menumbuhkan Etika Berinternet (Netiket) di Kalangan Mahasiswa
Authors: Saputra Meidi
Published: November 2022

Artikel ini bertujuan untuk mendeskripsikan integrasi kewarganegaraan digital dalam mata kuliah pendidikan kewarganegaraan sebagai upaya menumbuhkan budaya netiket di kalangan mahasiswa. Rancangan penelitian ini menggunakan pendekatan kualitatif dengan metode studi kepustakaan. Data penelitian dikumpulkan dengan metode dokumentasi. Sedangkan teknis analisis data menggunakan literatur dan jurnal yang berhubungan dengan tema penelitian. Temuan dalam penelitian ini adalah bahwa mata kuliah pendidikan kewarganegaraan merupakan mata kuliah wajib umum di perguruan tinggi. Mata kuliah ini bertujuan untuk pengembangan kepribadian mahasiswa. Sebagai mata kuliah pengembang kepribadian mahasiswa, mata kuliah pendidikan kewarganegaraan perlu merespon perkembangan teknologi dan informasi dengan mengintegrasikan konsep kewarganegaraan digital. Integrasi konsep kewarganegaraan digital merupakan bagian dari rekayasa pembelajaran sebagai upaya menumbuhkan etika berinternet (netiket) di kalangan mahasiswa. Etika berinternet (netiket) merupakan hasil yang ingin dicapai dari implikasi terintegrasinya kewarganegaraan digital dalam pembelajaran pendidikan kewarganegaraan di Perguruan Tinggi. Integrasi kewarganegaraan digital dalam mata kuliah pendidikan kewarganegaraan di perguruan tinggi dapat dilakukan dengan dua cara yakni pembahaaruan perangkat pembelajaran (RPS, SAP dan lain sebagainya) dan pendekatan pelaksanaan perangkat pembelajaran dengan memperhatikan latar belakang keilmuan mahasiswa.
PROBLEMATIKA PENILAIAN SIKAP SISWA PADA PEMBELAJARAN BERBASIS ONLINE
Authors: Fatimah Fatimah , Adawiah Rabiatul
Published: November 2022

Sejak bulan Maret 2020, Pemerintah melalui Mendikbud telah menetapkan kebijakan untuk melaksanaan pembelajaran secara online atau secara jarak jauh untuk semua jenjang pendidikan. Kebijakan ini tentu  tidak luput dari berbagai kendala baik bagi guru maupun bagi siswa. Salah satu kendala yang dihadapi guru adalah dalam melaksanakan penilaian, khususnya  pada aspek sikap. Untuk mengetahui kendala tersebut, perlu dilakukan penelitian yang mendalam. Penelitian ini menggunakan pendekatan kualitatif dengan metode deskriptif. Pengumpulan data dilakukan dengan teknik wawancara. Keabsahan data dilakukan melalui triangulasi sumber, triangulasi teknik dan triangulasi waktu. Data yang diperoleh dianalisis menggunakan model interaktif yang dikembangkan oleh Miles dan Huberman dengan tahapan pengumpulan data, reduksi, penyajian, dan penarikan kesimpulan. Dari penelitian ini dapat disimpulkan bahwa semua guru mengatakan bahwa penilaian  sikap merupakan penilaian yang sangat penting untuk dilakukan. Oleh karena itu walaupun pembelajaran dilaksanakan secara on line,namun semua responden tetap melaksanakannya. Kendala yang dihadapi guru dalam melaksanakan penilaian sikap saat pembelajaran on line adalah: terbatasnya waktu untuk melaksanakan penilaian, jumlah siswa yang banyak, komponen yang dinilai banyak dan terbatasnya sarana teknologi informasi yang dimiliki siswa.
THE ROLE Of COMPASSION AS A SHARED VALUE OF GRASSROOTS COMMUNITIES IN A CIRCULAR ECONOMY
Authors: Elmy Muhammad , Alfinuri Novita , Winarso Heru Puji , Akhyar Zainul
Published: November 2022

Dalam konteks masyarakat pedesaan, sudah sejak lama dibicarakan bagaimana cara mencapai pola pikir enterpreneurial, yaitu mampu menopang diri sendiri sambil memberikan pelayanan kepada orang lain. Moral dan identitas etis dari komunitas tingkat akar rumput ini sebagai jantung dari warga negara yang mempengaruhi kehidupan mereka khususnya tentang nilai-nilai bersama di antara anggota masyarakat yaitu welas asih. Rumusan masalah dalam penelitian ini adalah bagaimana peran welas asih sebagai nilai bersama dari masyarakat tingkat akar rumput dalam ekonomi sirkular. Metode penelitian ini mengugunakan studi empiris. Hasil dari penelitian ini menunjukkan welas asih adalah fokus utama pada pembangunan ekonomi yang berkelanjutan dan sirkular.Welas Asih, Nilai Bersama, Masyarakat Akar Rumput, Ekonomi Sirkular
Activities at Van Der Pijl Park as Social Studies Learning Resources
Authors: Anita Riska , Abbas Ersis Warmansyah , Rahman Akhmad Munaya , Subiyakto Bambang , Rajiani Ismi
Published: November 2022

Pembelajaran kontekstual merupakan kegiatan yang mengajak peserta didik melihat dunia nyata di sekitar sekolah dan luar sekolah. Pembelajaran yang hanya terfokus pada satu sumber dan di satu setting tempat saja membuat peserta didik merasa jenuh. Sebagai salah satu alternatif yang dapat dilakukan guru adalah melibatkan tempat wisata sebagai sumber belajar IPS. Sejalan dengan pemanfaatan lingkungan dengan pembelajaran IPS maka penelitian ini bertujuan untuk mendeskripsikan pemanfaatan taman Van Der Pijl sebagai sumber belajar IPS. Pendekatan kualitatif digunakan dalam penelitian ini dengan metode deskriptif dan data yang didapatkan melalui observasi, wawancara dan dokumentasi. Uji keabsahan data dilakukan dengan menggunakan triangulasi. Tujuan dari penelitian ini untuk melihat pemanfaatan taman van der pijl sebagai sumber belajar IPS dilakukan dengan melihat aktivitas yang ada di taman seperti interaksi sosial, aktivitas jual beli, taman sebagai pusat pertumbuhan dan taman hijau di kota Banjarbaru yang bisa dijadikan sumber belajar IPS.
The Spirit of Nationalism of the Banjar People on the Proclamation of 17th May 1949
Authors: Sari Diana Novita , Syaharuddin Syaharuddin , Handy Muhammad Rezky Noor , Rajiani Ismi , Subiyakto Bambang
Published: November 2022

Sejarah perjuangan ALRI Divisi IV sendiri merupakan gambaran perjuangan rakyat Kalimantan Selatan dalam menunjukkan kesetiaan kepada NKRI dari para pejuang di Kalimantan. sejarah perjuangan ALRI Divisi IV yang dipimpin oleh Hassan Basry memproklamirkan bahwa Kalimantan ada wilayah Republik Indonesia pada 17 mei 1949. Tujuan penulisan artikel ini adalah memaparkan bagaimana kesadaran nasionalisme masyarakat Banjar pada peristiwa Proklamasi 17 Mei 1949. Artikel adalah penelitian studi kepustakaan dengan mengkaji sumber-sumber artikel jurnal, buku-buku sejarah dan sumber terkait dengan Peristiwa Proklamasi 17 Mei 1949 dengan Analisa dari sumber-sumber terkait yang ditarik kesimpulan mengenai topik yang dibahas. Hasil dari artikel ini adalah Perjuangan ALRI Divisi IV Kalimantan yang dipimpin oleh Hassan Basry yang bermarkas di wilayah Kandangan melakukan perlawanan sengit kepada pihak NICA Belanda. Pada tahun 1949, Ketika wilayah perjuangan dari ALRI Divisi IV bertambah luas di Kalimantan Selatan. Karena mereka mengaku sebagai alat pemerintah Republik Indonesia maka para pejuang atau gerilyawan ini berinisiatif melakukan rapat dan hingga pada peristiwa Proklamasi 17 Mei 1949 di desa Mandapai Hulu Sungai Selatan, yang telah mendorong meningkatnya semangat perjuangan pada jiwa masyarakat Banjar, yang dimana masyarakat Banjar sendiri berjuang dan sudah merasa menjadi bagian dari Republik Indonesia bukan menjadi wilayah boneka Belanda.
Aktivitas Masyarakat dalam Menjaga Kelestarian Sungai Martapura di Kelurahan Banua Anyar sebagai Sumber Belajar IPS
Authors: Mastiah Mastiah , Hasanah Mahmudah , Putra Muhammad Adhitya Hidayat , Rusmaniah Rusmaniah , Ilhami M. Ridha
Published: November 2022

Aktivitas masyarakat tentunya sangat beragam, dari berbagai macam aktivitas sedikit banyaknya ada yang membawa pengaruh bagi keberlangsungan ekosistem lingkungan. Satu diantaranya aktivitas masyarakat dalam menjaga kelestarian sungai, karena sungai merupakan komponen penting kelangsungan hidup manusia. Hal ini tercermin pada aktivitas masyarakat dalam menjaga kelestarian Sungai Martapura di kelurahan Banua Anyar.  Penelitian ini bertujuan untuk mendeskripsikan aktivitas masyarakat dalam menjaga kelestarian sungai Martapura di kelurahan Banua Anyar. Penelitian ini menggunakan pendekatan kualitatif dengan metode deskriptif. Data didapatkan melalui observasi, wawancara dan dokumentasi. Uji keabsahan data melalui triangulasi sumber, teknik, dan waktu. Data disajikan dalam bentuk deskripsi dan dilengkapi gambar. Hasil penelitian yaitu adanya masyarakat kelurahan Banua Anyar sudah mulai sadar akan pentingnya menjaga lingkungan, sehingga mereka melakukan berbagai upaya untuk mengatasi berbagai permasalahan yang terjadi di lingkungannya. Dengan adanya kegiatan kerja bakti, kegiatan pembagian tempat sampah serta kegiatan pembuatan WC sebagai pengganti jamban yang akan mengurangi pencemaran sungai Martapura. Jika hal demikian dilakukan secara berkesinambungan maka pencemaran sungai akan segera teratasi dan sungai dapat dimanfaatkan dengan semestinya.
ANALISIS KONTEN VISUAL: STIGMA OBESITAS DALAM PORTAL BERITA ONLINE LOKAL INDONESIA
Authors: Najma Najma , Wibowo S. Kunto Adi , Fuady Ikhsan
Published: November 2022

Negative stigmatization of obese people is often found in everyday life. This is reinforced by the role of the media, especially news, which internalizes and builds public perception. This study was conducted to determine how obese people are depicted in the visual content of 5 local online news portals in Indonesia, how to compare the depiction of obese and non-obese people, and to examine whether there is still an element of obesity stigmatization in the visual content of local online news in Indonesia. The study was conducted by collecting photo samples from 5 local online news portals in Indonesia for 6 months, starting from October 2021 to March 2022 that met the criteria (n = 180) and determining the number of samples using the monkey survey website (n = 123). Furthermore, the photos will be encoded by the coders which are then analyzed using descriptive and inferential tests with non-parametric statistical calculations chi-square Independence Test using Statistical Product and Service Solutions (SPSS) software. The results show that 37.5% of Indonesian local online news visual content is still stigmatized. Obese people were 53.65% more likely to be described as male and 94.4% more likely to be described as young. When compared with non-obese depictions, obese people tended to be disproportionately more likely to be depicted (80%), undressed or bare stomach (79%), and sedentary behaviors (65%), such as watching TV, sleeping, eating, and others activities with minimal mobilization.Keywords:  Obesity Stigma, Online News Portal, Visual Content.
Problem Based Learning (PBL) Berorientasi Higher Order Thinking Skills (HOTS) Untuk Meningkatkan Hasil Belajar IPS
Authors: Farhan Muhammad , Arisona Risma Dwi
Published: November 2022

The conventional Social Education learning process at SMPN 2 Ponorogo resulted in students not being interested in participating in learning activities. As a result, student learning outcomes are low, and students inability to think at higher levels. This study aims to (1) determine the application of PBL (Problem Based Learning) learning oriented to HOTS for Social subjects in class VII C SMPN 2 Ponorogo (2) find out the improvement of Social Education learning outcomes in class VIII C SMPN 2 PONOROGO using the PBL (Problem Based Learning) oriented to HOTS (Higher Other Thinking skills). This study used the Class Action Research model by Kemmis and Mc. Taggart, which consists of two cycles. The subjects of this study consisted of 32 students of class VIII C SMPN 2 Ponorogo. The results showed that (1) the application of the Problem Based Learning (PBL) learning model oriented to Higher Other Thinking Skills (HOTS) contained three activities, namely: initial, core, and closing. The teacher sets the cognitive domain C4 (Analyzing) as the observed Higher Other Thinking Skill (HOTS). The results from cycle I to cycle II on the ability of C4 (analyzing) with categories of distinguishing, organizing, and attributing there was an increase. (2) There was an increase in learning outcomes in the second cycle of students who completed by 87%. The Problem Based Learning (PBL) learning model oriented to Higher Other Thinking Skills (HOTS) improved Social Education learning outcomes.Keywords:  Problem Based Learning, Higher Order Thinking Skills, learning outcomes, social studies education learning
Dampak Sosial Ekonomi Penambang Emas Tanpa Izin (Illegal) Pada Masyarakat Binawara
Authors: Maulida Nurul Hasnah , Mattiro Syahlan , Nur Rahmat , P Reski , Syaharuddin Syaharuddin
Published: November 2022

Gold mining is carried out illegally by the community to meet their daily needs. The purpose of this study is to (1) describe the division of tasks in gold mining work without a permit (illegal); (2) Describe the distribution of income in gold mining work without a permit (illegal); (3) Describe the impact of gold mining work without a permit (illegal) for the socio-economic conditions in the community. This study used a qualitative method. This study also used a purposive sampling technique. Data collection was done by using observation, interviews, and documentation. This study used reducing data, presenting data, and drawing conclusions to analyze the data. The results of this study indicated that: (1) The division of tasks in this illegal gold mining job was done by dividing them according to what is mastered by each worker, but there are also those who did not hold divisions in doing the work or working as a team. (2) The distribution of income in this job was divided based on the number of workers. The results obtained were deducted by the operational costs first, and then the remainder is divided equally among the workers and machines. (3) This work has an impact, namely: a) Social impact, namely in this work it always opens job opportunities for those who want to work. b) The economic impact can meet the needs of the economy but the income obtained is not always fixed. Keywords: Gold Miners, Division of labor, Division, Income, Impact.
Pengembangan Modul Tematik Berbasis Kearifan Lokal Sebagai Sumber Belajar IPS
Authors: Ernandi Ahimsa Tunggul , Rusmawan Rusmawan , Purnomo Puji
Published: November 2022

This research is motivated by the lack of teaching materials based on local wisdom in elementary schools. The purpose of this study was to develop teaching materials in the form of thematic modules based on local wisdom about the uniqueness of the Gunungkidul Regency area that was suitable for fourth-grade elementary school students. This research used Research and Development (R&D). This research procedure used the ADDIE model, namely analyze, design, develop, implement, and evaluate. The subjects of this study were experts, teachers, and four-grade elementary school students. This research used interview guidelines, expert validation questionnaires, and response questionnaires obtained from teachers and students. Data collection techniques used were observation, interviews, and questionnaires. This research used qualitative and quantitative techniques to analyze the data. Expert assessment results showed that the modul is considered appropriate to be tested in which this decision is previously proven by the validation from the instructional media expert and thematic learning expert. The validation score from the instructional media expert is 3,00 (good category). The validation score for thematic learning expert is 3,36 (very good category). The average score of teachers’ questionnaire responses is 3,66 (very good category). The average score of the limited trial is 3,48 (very good category). The implication of this research is the need to disseminate the idea of using local wisdom for social studies learning resources.Keywords: teching materials, thematic modul, local wisdom
Evaluation of aerial drift during drone spraying of an artificial vineyard
Authors: Delpuech Xavier , Pouxviel Guilhem , Cotteux Eric , Verges Adrien , Douzals Jean-Paul
Published: November 2022

Drones have many advantages over the helicopters that were used in steeply sloping vineyards before the ban on aerial spraying. They are cheaper, safer, quieter, more precise and smaller, allowing them to fly lower and thus limit aerial drift. The drone also appears to be a promising alternative to ground spraying (the only option currently authorized) in terms of operator safety and exposure.
ESTRESSE OCUPACIONAL, SÍNDROME DE BURNOUT E DOCÊNCIA UNIVERSITÁRIA
Authors: Luiz de Souza Luciana , Venceslau Vieira de Lima Aline
Published: November 2022

O presente estudo teve como objetivo identificar os principais sintomas e/ou sinais de adoecimentos psíquicos/mental entre docentes de nível superior brasileiros, citados na produção acadêmico-científica dos últimos cinco anos (2013-2018) no Brasil. Realizou-se uma busca na base de dados ScIELO e LILACS utilizando os descritores em pares: “burnout AND docentes”, “burnout AND professores”, “estresse AND docentes” e “estresse AND professores”. A presente revisão sistemática (método PRISMA) possibilitou identificar que a sobrecarga laboral, a precarização das condições de trabalho e as relações socioprofissionais são os principais fatores geradores de adoecimento, estresse e esgotamento profissional no ambiente acadêmico. Consequentemente, esses fatores afetam as diferentes esferas da vida do trabalhador, os vínculos afetivos e sociais, limitando o tempo para o lazer e para o cuidado à saúde. Apesar do sofrimento presente no contexto de trabalho do docente universitário, viu-se que os profissionais conseguem vivenciar experiências de prazer e satisfação pelo trabalho. Ademais, espera-se que este estudo possa contribuir para o direcionamento de implementação de ações de prevenção e promoção saúde, e de estratégias de intervenção na saúde docente do ensino superior.
BURNOUT, UM SOFRIMENTO INSISTENTE
Authors: Fontes Flávio Fernandes
Published: November 2022

Trata-se de uma resenha crítica do livro “Burnout: a doença que não existe”, de autoria de Estevam Vaz de Lima, médico psiquiatra que atua como perito em um Tribunal Regional do Trabalho. Realizamos uma descrição das partes que compõem a obra e de suas principais contribuições, destacando uma abordagem crítica do trabalho de Christina Maslach. O autor defende a ideia de que o burnout se encontra em um estado de confusão epistemológica, podendo ser visto como uma gíria, uma ficção que não possui semiologia confiável que a justifique enquanto diagnóstico médico. Para isso, argumenta que os sintomas comumente atribuídos à síndrome podem ser compreendidos como fazendo parte de outros transtornos já presentes na Classificação Internacional das Doenças (CID). Discutimos criticamente esse posicionamento, mostrando as limitações da CID enquanto instrumento diagnóstico para a saúde mental e argumentando que a filosofia da linguagem e da ciência permitem um entendimento diferente da relação entre a linguagem cotidiana e a linguagem científica, que não é de nítida separação e sim de interação mútua. Ao final, concluímos que a obra falha ao deixar de explicitar e fundamentar seus pressupostos filosóficos, mas é capaz de estimular o debate sobre o tema.
PESQUISAS ACADÊMICAS EM MATEMÁTICA
Authors: Nascimento Ednei Mudesto , Vieira André Ricardo Lucas
Published: November 2022

Este presente artigo, objetivou compreender de que forma os professores de matemática que atuam na cidade de Itiúba-BA se relacionam com as pesquisas acadêmicas em Educação Matemática. A partir de uma pesquisa com cinco professores de matemática, que atuam em duas escolas dos anos finais do Ensino Fundamental, e uma do Ensino Médio. Trata-se, de uma pesquisa de cunho qualitativo, que teve como principal instrumento de produção de dados um questionário estruturado. Durante a realização da pesquisa, percebemos que os professores reconhecem a importância da leitura e desenvolvimento de pesquisas acadêmicas, e a relação que as mesmas têm com processo de ensino e aprendizagem desta ciência, utilizando-as, principalmente, na construção dos seus planejamentos.
Just Making It Up: Structure and Spontaneity in Music and Teaching
Authors: Lemish Noam
Published: November 2022

William Allaudin Mathieu (born in 1937) is a consummate musician, a pianist, composer, author, and teacher — and, in my view, one of the most influential musicians of his generation. In his early twenties he composed music for the Kenton and Ellington Big Bands, was the founding musical director of the famed Second City of Chicago (Improv Theater) and was a pioneer in the 1960s of the application of theater improvisation games into the musical sphere. He is the author of four influential books, including the best selling "The Listening Book" (1991). In a teaching career spanning more than fifty years, Mathieu has been an important influence and guide to many musicians worldwide.

As I demonstrate throughout this essay, W.A. Mathieu reminds us that in highlighting the world of improvisation we must be careful not to romanticize spontaneity, for doing so might well involve our falling into the trap of dualistic thinking that separates if not excludes such activity from composition. Overall, Mathieu implores us to reflect deeply about false dichotomies as improvisation/composition, and by extension think more broadly about the perils of dualistic thinking in general. In exploring themes in discussion of improvisation, I highlight some of the ways in which we can begin to draw connections between Mathieu’s ideas and the usefulness of improvisation to pedagogy in music education and beyond.
Clock in the Living Room
Authors: Levesque Lauren , Levesque J.R.F.
Published: November 2022

This article explores the practice of intergenerational listening and its implications for re-imagining social connection in the COVID-19 crisis. Using an approached based in conversation and exchange facilitated through video-conferencing platforms, the authors critically reflect on the possibilities for developing a new sense of social connection by listening to the everyday sounds (Tuuri and Peltola 2019) of particular spaces. More specifically, the principal aim is to investigate the impact of re-imagining the daily sounds of spaces under locked-down as sources of intimacy, accompaniment, and creativity. These sounds include the ‘buzz’ of a cherished clock, the creak of a screened in porch, or records regularly listened to in a family living room. Supported by literature on ‘listening at a distance’ (Finer 2018) and the ‘sonic imagination’ (Street 2019), we ask: how can intergenerational, socially-distanced listeners engage with sound and space to improvise new forms of social connectivity? Asking these questions, we argue, can inform research and action into the roles that intergenerational listening and improvisation can play in the representation and the valuing an ageing population (Lanphier 2019) in an emerging post-pandemic musical landscape.
Sudden Music: Improvisation, Sound, Nature by David Rothenberg
Authors: Echeverri Marcela
Published: November 2022

A review of the book Sudden Music: Improvisation, Sound, Nature by David Rothenberg.
Voices Found: Free Jazz and Singing by Chris Tonelli
Authors: West Carey
Published: November 2022

A review of Voices Found: Free Jazz and Singing by Chris Tonelli.
Dynamic shimmy behavior and bifurcation analysis of driver-vehicle-road system
Authors: Wei Heng , Li Liang , Xu Yinggang , Lei Shuai , Wang Yirui
Published: November 2022

Based on the stretched string tyre model, the constraint equation with consideration of the dynamic coupling between the front wheel shimmy and plane motion of the vehicle is derived. On this basis, a novel dynamic shimmy model of driver-vehicle-road system is proposed. The root loci of the dynamic system are analyzed and two critical vehicle speeds are obtained by solving the Jacobian matrix. For two critical vehicle speeds, the centre manifold theory is applied to reduce the dynamic system and examine the stability of the limit cycle. The system stability region for different system parameters and road adhesion coefficients is also analyzed. Furthermore, the saddle node (SN) bifurcation and Hopf bifurcation characteristics of the dynamic system considering the steering input are studied with the help of the complexification-averaging (CA) method. Then, the mathematical expression of the periodic solution is obtained, and the effects of system parameters and vehicle driving conditions on the bifurcation characteristics are also investigated. According to the numerical and analytical results, measures to suppress vehicle shimmy are proposed. Finally, the experimental data verify the reliability of the shimmy model.
Nonlinear thermal-dynamic coupling effect of a dual-rotor system with an intershaft bearing
Authors: Gao Peng , Zhang Zhiyong , Dai Qiyi , Jin Yulin , Hou Lei , Chen Yushu
Published: November 2022

The nonlinear thermal-dynamic coupling effect refers to the interaction between the nonlinear dynamic characteristics of a dual-rotor system and the thermal effect of an intershaft bearing. In this paper, the nonlinear thermal-dynamic coupling effect of the dual-rotor system is proposed and studied by the operating radial clearance and dynamic load of the intershaft bearing. A nonlinear dynamic model of the dual-rotor system under the thermal effect of the intershaft bearing is established by considering nonlinear factors such as the Hertzian contact force and the operating radial clearance of the intershaft bearing. The dynamic load of the intershaft bearing is obtained based on the dynamic responses of the system. Based on this, a thermal effect model of the intershaft bearing considering the nonlinear dynamic characteristics of the system is proposed. The operating radial clearance of the intershaft bearing is attained according to the temperature field of the intershaft bearing. The thermal-dynamic coupling model of the dual-rotor system is presented by connecting the dynamic model and the thermal effect model. The results solved by numerical iteration show that the nonlinear dynamic characteristics of the dual-rotor system are deeply coupled with the thermal effect of the intershaft bearing, and become weaker. In turn, a complex nonlinear thermal effect affects the bearing due to the nonlinear dynamic characteristics of the system. Furthermore, the operating radial clearance of the intershaft bearing is closely related to the thermal-dynamic coupling effect of the system. The operating radial clearance decreases with increasing temperature, decreases with decreasing initial radial clearance, and decreases sharply in the resonance regions. Thus, the “negative clearance” may affect the operating radial clearance of the intershaft bearing, which endangers the operation of the rotor system. Moreover, the nonlinear characteristics of the thermal-dynamic coupling effect become stronger as the ambient temperature increases. The results presented in this paper provide insight into the mechanism of the nonlinear thermal-dynamic coupling effect and new theoretical guidances for the dynamic and thermodynamic design of the intershaft bearing in the dual-rotor system.
Why do women walk away from maternal health services in Southwest Ethiopia? A qualitative study of caregivers' and clients' perspectives.
Authors: Kitila Sena Belina , Feyissa Garumma Tolu , Wordofa Muluemebet Abera
Published: November 2022

Background
Continuum of care (CoC) CoC for Maternal Health Care (MHC) is continuity of care through pregnancy, childbirth, and after birth as a key strategy in reaching mothers and babies at a crucial time. However, dropout from this basic package and critical for women and their infants’ survival and wellbeing is widespread in Ethiopia.
Objective
The aim of this study is to explore the underlying reasons why do women walk away from maternal health services in Ethiopia caregivers' and clients' perspectives.
Methods
Exploratory qualitative study took place at selected health facilities in the Jimma zone in November to December 2020 among purposefully selected key informants from woreda health departments, head of the health facilities, midwives and women attending the MCH clinic based on the established criteria. Data was collected using key informants interview guide
Result
The field note, interview note, and tape-recorded interviews were transcribed and later translated into English. The main themes were identified and compared across all the transcripts to determine similarities and variations in the views of respondents. Accordingly, the reasons why do women walk away from maternal health services were categorized under three main themes: healthcare system related reasons (shortfall in supplies, missed use of the concept of responsibility and accountability, high staff turnover, poor linkage and COVID_19) ,community level barriers (socio cultural /norm, less attention to forum, weak community level structure) and individual level barriers (Knowledge and sense of fatigue as gestational age advances, late booking for ANC, lack of motivation and socioeconomic).
A novel deformation control method for the asymmetric thin-walled component by optimizing the feed rate of the finishing process
Authors: zhongxi zhang , WANG Longhao , WANG Shuaiqin , ZHANG Dinghua , JIANG Aituan
Published: November 2022

The complicated thin-walled components with asymmetric structure are extensively used in aerospace fields. The material of these parts is hard-to-machining (such as titanium alloy and superalloy) and the machining induced residual stress (MIRS) is inevitable in each cutting process. The component is deformed easily after the MIRS is rebalanced, which has become one of the most important challenges for the manufacturing of these parts. To overcome this problem, a deformation control method for the asymmetric thin-walled component by optimizing the machining parameters of the finishing process is proposed, which is aimed at adjusting the distribution of MIRS to make the MIRS tends to self-balancing. Firstly, the deformations of two typical thin-walled components, the thin-walled plate and the circular section plate, that caused by the symmetrically distributed MIRS are discussed in detail. The influence of the component structure on the deformation is revealed. Subsequently, the component is divided into different sub-regions and the optimization algorithm, includes the objective function and constraint, is established to adjust the feed rate of each sub-region. To achieve the optimization, the mapping relationship between the deformation and the feed rate is established by combining the machining experiments and finite element method. And then, the method of adjusting the distribution of the MIRS based on the mapping relationship is presented, using which the component is divided into several sub-regions and the feed rate of each sub-region is optimized. Finally, two group machining experiments on the complex thin-walled blade are carried out. Experimental results illustrate that the proposed method can reduce the machining deformation obviously.
Numerical and Experimental Investigation of the Effect of Cold Extrusion Process on Residual Stress and Fatigue Life of Internal Thread of High Strength Steel
Authors: Wan Nian , He Qiang , Jing Xuwen , Jiang Yonggang , Zhou Honggen
Published: November 2022

The internal thread cold extrusion process is improved to further increase the fatigue life of diesel connecting rod in order to improve its fatigue performance. Based on three-dimensional finite element model, the residual stress distribution around the cold extruded internal thread of 42CrMo4 high-strength steel plate hole structure under different edge distance ratios is analyzed in detail. The multiaxial fatigue life prediction model of thread is established based on stress-strain method, the accuracy and feasibility of the prediction model was further proved by fatigue experiments. The thread surfaces are examined by utilizing the scanning electron microscope, coordinate with the X-ray diffraction method to measure the residual stress of thread, the relationship between the residual stress distribution, surface structure and fatigue life of the extruded thread is revealed. The research shows that the improved fatigue prediction model gives a satisfactory accuracy in predicting the fatigue life, both of the tangential residual stress fields around the extruded thread and the surface structure have a certain influence on its fatigue life, especially when the edge distance ratio is less than 2. The tangential residual compressive stress of the cold extruded internal thread decreases with when the edge distance ratio being smaller, while the depth of the stress zone increases firstly and then decreases. Higher load will greatly reduce the fatigue life and dispersion of the thread, the fatigue life increases linearly with the increase of the edge distance ratio under lower stress level.
Low-light image enhancement based on Double component processing of Retinex model
Authors: Chen Huateng , Liu Lei , Deng Weitao , Shi Feng
Published: November 2022

The Retinex model has been shown to be an effective method of enhancing shimmering images, and how to deal with the illuminance and reflection components decomposed from Retinex model is the key to obtain high-quality enhanced images.To better apply the Retinex model to achieve more effective micro-optical image enhancement, this paper proposes an image enhancement method based on Retinex model with dual enhancement of the illuminance and reflection components.First, to reduce the computational complexity of the algorithm, the original RGB image is converted to HSV color space, and the V component is extracted for subsequent processing in this paper; Then,processing V components by guided filter to obtain the illuminance component according to Retinex model,so that the obtained illuminance component will not have edge loss;The reflection component is then obtained by logarithmic decomposition.Then global adaptive brightness enhancement and local contrast enhancement are performed for illuminance components; detail enhancement was applied to the reflection component.Finally the enhanced illuminance and reflection components are combined into an enhanced image. Experiments on a large number of datasets show that this method can achieve better image enhancement in both subjective and objective evaluation, and is superior to or similar to the existing methods.
A Novel Method for Sex Determination Using Zygomatic Arch Curve Equation in Balinese Population
Authors: Utomo Haryono , Sari Ratih Indah , Lastiasih Yudhi , Kurniawan Arofi , Marini Maria Istiqomah , Margaretha Mieke Sylvia , Marya Anand
Published: November 2022

OBJECTIVE Conventional methods for sex determination, such as zygomatic arch geometry and morphometry, are based on visual and linear anthropometric measurements. Considering the geographical condition of Indonesia, simple materials and methods for sex determination are important. Bali is a population that can represent the genetic population of Southeast Asia as it is one of the migration meeting points, and it has a unique O2a chromosomal lineage. Therefore the objective of this study was to verify a new simple method for sex determination using the zygomatic arch curvature. METHODS: A cross-sectional research was conducted involving 50 male and 50 female participants between the ages of 16 to 18. Brass wires were used to measure zygomatic arch curvatures. The data were processed using Microsoft Excel to produce a curve equation for sex determination and the size range of zygomatic bone arch length. RESULTS: The average yield and ranges right male zygomatic bone were coefficient a (-0.128 – -0.103), coefficient b (0.734–1.025), coefficient c (0.056–0.248), while the left were coefficient a (-0.138 – -0.098), coefficient b (-0.965 – -0.709), coefficient c (0.087–0.196). The right female range yields were coefficient a (-0.165 – -0.110), coefficient b (0.785–1.121), coefficient c (0.101–0.179), while the left were coefficient a (-0.142 – -0.111), coefficient b (-0.980 – -0.799), coefficient c (0.086–0.184). CONCLUSION: This new simple method can be used for forensic sex determination using zygomatic arch curvature based on a validated curve equation.
Hypoxic Stress Promotes Human Hypothalamic Hamartomas Pathogenesis through Regulating the TGFα-Mediated Slit2 and the Semaphorin Signaling Cascades in Hypothalamic Neuronal Progenitor Cells
Authors: Liu Bo , Ren Hai-Long
Published: November 2022

Hypothalamic hamartomas (HH), a developmental-deficient neurological disorder, is frequently accompanied with the hallmark symptoms of central precocious puberty (CPP) and epileptic (gelastic) seizures (GS), which results in patients’ cognitive abnormality as well as mental retardation. Molecular mechanisms underlying HH pathogenesis are still under investigation. In this study presented here, we collected cohorts of human HH tissue samples and explicitly investigated the role of hypoxic stress in HH initiation. Our finding reveals that hypoxic stress is a leading cause for HH pathology. Growing in an oxygen-deficient environment, embryonic neural progenitor cells isolated from hypothalamic region have to obtain nutritional ingredients including lactate and glutamate from hypoxic-associated glycolytic and glutaminolytic metabolisms, which is monitored by transforming growth factor (TGFα) signaling cascade. In turn, excessive productions of lactate and glutamate profoundly promotes hypothalamic neural progenitor cells (HNPCs)’ migration under hypoxic condition, which is accompanied by initiation of the TGFα-mediated Semaphorin cascade, but suppression of the TGFα-mediated Slit2 cascade. Intriguingly, TGFα and TGFβ affinity, but not TGFβ protein expressing dynamic, decides the signaling initiations of the two migration-associated cascades both in HH tissues as well as in HNPCs. Noteworthy, TGFβ restricts the release of TGFα from TGFα-TGFβ protein complex, and TGFβ participates in maintaining the spatial stability of this protein dimer in HNPCs subjected to hypoxic stress. Taken together, our findings demonstrate that hypoxic stress is a leading etiology for HH pathology, through manipulating the signaling transduction of the TGFα-mediated Slit2 cascade and the Semaphorin cascade in proliferating HNPCs susceptible to suffer from hypoxic stress over embryonic developmental period.