bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dampak Peraturan Menteri Perdagangan Republik Indonesia Nomor 84 Tahun 2019 tentang Ketentuan Impor Limbah Nonbahan Berbahaya dan Beracun sebagai Bahan Baku Industri terhadap Ekspor Kertas Indonesia (Studi Kasus PT XYZ)
Authors: Sheilda Sheilda , Widoatmodjo Sawidji 
Published: February 2022

The purpose of this research is to determine the impact of the Regulation of the Minister of Trade of the Republic of Indonesia Number 84 of 2019 concerning the import of hazardous and toxic non-hazardous waste as industrial raw materials on the export of Brown Paper PT XYZ. This research uses statistical methods on SPSS namely Bivariate Correlation, Simple Regression Analysis, and Wilcoxon Signed-Rank Test for Dependent Population as the main approach to conducting research. The results determine that there is no significant correlation between imported waste paper and the export volume of PT XYZ. The result also determine Imported waste paper has no significant impact on machine consumption, and machine consumption has no significant impact on the exported paper volume of PT XYZ. The main results of this result determine that there is no significant difference in the paper export volume of PT XYZ before and after the enactment of PERMENDAG number 84 of 2019. Tujuan penelitian adalah mengetahui dampak Peraturan Menteri Perdagangan Republik Indonesia Nomor 84 Tahun 2019 tentang ketentuan impor limbah nonbahan berbahaya dan beracun sebagai bahan baku industri terhadap ekspor Brown Paper PT XYZ. Penelitian ini menggunakan metode statistik yaitu Bivariate Correlation, Simple Regression Analysis dan Wilcoxon Signed-Rank Test for Dependent Population sebagai metode pendekatan utama untuk melakukan penelitian. Hasil yang didapatkan menunjukkan bahwa tidak ada korelasi yang signifikan antara wastepaper impor dan volume ekspor PT XYZ. Hasil penelitian juga menunjukkan bahwa wastepaper impor tidak memiliki pengaruh yang signifikan terhadap konsumsi mesin, dan konsumsi mesin tidak berpengaruh secara signifikan terhadap volume ekspor PT XYZ. Hasil yang diperoleh adalah tidak terdapat perbedaan yang signifikan data volume ekspor kertas PT XYZ sebelum dan sesudah diberlakukannya PERMENDAG nomor 84 tahun 2019. Berdasarkan hasil penelitian tersebut beberapa rekomendasi bagi perusahaan.
Pengaruh Waktu Tunggu, Harga dan Kualitas Pelayanan terhadap Kepuasan Konsumen pada Maskapai Penerbangan Air Asia di Terminal 2D Bandara Soekarno Hatta
Authors: Phaksi R. Adam Kesuma 
Published: February 2022

The purpose of this study is to determine the effect of waiting time, price, and service quality on customer satisfaction on Air Asia airlines at terminal 2D Soekarno Hatta Airport. Respondents in this study are people who have used the services of the Air Asia airline at terminal 2D Soekarno Hatta airport. Respondents in this study were 100 people, and the sampling technique used was purposive sampling. The data analysis technique uses Multiple Linear Regression using application SPSS version 25 software. The results indicate that waiting time, prices and service quality has an effect on customer satisfaction on Air Asia airlines at terminal 2D Soekarno Hatta airport. Penelitian ini bertujuan untuk mengetahui (1) pengaruh waktu tunggu secara parsial terhadap kepuasan konsumen pada maskapai penerbangan Air Asia di terminal 2D Bandara Soekarno Hatta, (2) pengaruh harga secara parsial terhadap kepuasan konsumen pada maskapai penerbangan Air Asia di terminal 2D Bandara Soekarno Hatta, (3) pengaruh kualitas pelayanan secara parsial terhadap kepuasan konsumen pada maskapai penerbangan Air Asia di terminal 2D Bandara Soekarno Hatta. Penelitian ini menggunakan 100 responden yang telah menggunakan jasa penerbangan maskapai Air Asia di terminal 2D bandara Soekarno Hatta. Penelitian ini menggunakan teknik purposive sampling dalam pengambilan sample. Penelitian ini menggunakan Regresi Linier Berganda dalam analisis data dan menggunakan aplikasi SPSS versi 25. Hasil dari penelitian ini menunjukkan bahwa (1) Adanya pengaruh secara parsial waktu tunggu terhadap kepuasan konsumen pada maskapai penerbangan Air Asia di terminal 2D bandara Soekarno Hatta, (2) Adanya pengaruh secara parsial harga terhadap kepuasan konsumen pada maskapai penerbangan Air Asia di terminal 2D bandara Soekarno Hatta, (3) Adanya pengaruh secara parsial kualitas pelayanan terhadap kepuasan konsumen pada maskapai penerbangan Air Asia di terminal 2D bandara Soekarno Hatta.
Cerebellar liponeurocytoma with an unusual metastatic CSF spinal seeding
Authors: Hadelsberg Uri Pinchas , Kahanov Lea , Vargas Andres 
Published: February 2022

Background:
Cerebellar liponeurocytoma is rare intracranial tumor appearing mostly in the posterior fossa.

Case description:
We hereby report a long follow-up of a case of cerebellar liponeurocytoma in a 60-year-old female. At first, she presented in March of 2010 with the symptoms of hydrocephalus and was found to have a lesion located in the fourth ventricle. The tumor was resected with a small remnant around the brainstem which grew on serial imaging. Due to slow tumor growth, the patient was treated with conformal radiotherapy and was kept under follow-up with both outpatient visits and serial brain imaging. In 2018, due to low back pain and lumbar radicular pain, a new set of images of the spine was obtained which revealed multilevel intradural tumor spinal dissemination. The patient further underwent an open spinal biopsy at the level of L5 which revealed the same pathology of the intracranial tumor. The patient went on to receive total spine irradiation.

Conclusion:
This case report describes a rare metastatic phenomenon to the spinal cord of the exact same pathology and grade of an intracranial cerebellar liponeurocytoma tumor.
Usefulness of endoscope-assisted surgery under exoscopic view in skull base surgery: A technical note
Authors: Yano Shigetoshi , Hiraoka Fumihiro , Morita Hiroya , Kawano Hiroto , Kuwajima Takuto , Yoshida Shin-ichiro , Hama Yoshiaki , Tashiro Noriaki , Hamaguchi Shuko , Aikawa Hiroshi , Go Yoshinori , Kazekawa Kiyoshi 
Published: February 2022

Background:
The use of the exoscope has been increasing in the field of neurosurgery, as it can set the visual axis freely, enabling the surgeon to operate in a comfortable posture. Although endoscope-assisted surgery for compensation of insufficient surgical field is useful under the microscope, we report that using an endoscope in exoscopic surgery is safer and more useful.

Methods:
The exoscope used was ORBEYE. All surgical procedures were performed exoscopically from the beginning of the surgery. When endoscopic observation was required during the operation, the endoscope was inserted under observation by an exoscope. The exoscopic screen was 4K-3D and endoscopic screen was 4K-2D, the operation was performed while observing both screens at the same time. The endoscope was held manually or by a mechanical holder.

Results:
Twenty-two cases, including 14 requiring microvascular decompression (MVD) and eight requiring tumor removal, were performed by endoscopic-assisted exoscopic surgery. The endoscope could be inserted safely because its relationship with the surrounding structure could be observed under the exoscope, and the operator could observe both screens without moving the head. Fourteen of 22 patients required additional endoscopic treatment. Satisfactory two-handed operation was performed in 13 cases. Symptomatology disappeared in all cases of MVD, and sufficient tumor resection was achieved.

Conclusion:
Exoscopic surgery provides excellent surgical view that is not inferior to conventional microsurgery. As a large space can be secured between the scope and the surgical field, it is safer and easier to manipulate the endoscope under the exoscope.
Pengaruh Partikel Zeolit terhadap Laju Korosi Baja Karbon dalam Lingkungan Asam dan Basa
Authors: Bambang Hari Prabowo  
Published: February 2022

Korosi merupakan gejala dan proses destruktif yang terjadi pada setiap peralatan yang terbuat dari logam paduan besi maupun non besi. Logam baja yang banyak digunakan sebagai bahan konstruksi pada saat mulai diaplikasikan langsung mengalami proses korosi. Korosi merupakan proses alami yang bersinggungan dengan lingkungan dan reaksi elektrokimia. Sehingga proses dan laju korosi pada kenyataannya tidak dapat dihentikan selama bersinggungan dengan lingkungan. Metoda yang selalu dilakukan selama ini adalah mengendalikan korosi dengan cara menghambat laju korosi misalnya dengan coating, proteksi katodik, inhibitor dan lainnya.
Zeolit adalah batuan anorganik atau mineral yang merupakan senyawa alumina silikat terhidrasi, yang mempunyai kemampuan sebagai penjerap, katalis dan penukar kation. Berdasarkan kemampuan ini, kami melakukan percobaan bahwa partikel zcolit mampu sebagai inhibitor penjerap dan melakukan pertukaran kation. komponen utama struktur zeolit adalah (SiO4)-4 yang membentuk struktur 3 dimensi, sehingga muatan listrik yang dimiliki oleh kerangka zeolit baik yang dipermukaan maupun di dalam pori mampu berperan sebagai penjerap dan penukar kation.
Metoda yang digunakan cukup sederhana yaitu dengan cara perendaman benda kerja (baja karbon) selama 720 jam (30 hari) dalam lingkungan asam dan basa, dengan konsentrasi 4 M dan 2 M. Penambahan partikel zeolit ukuran 0,75 mm sebanyak 20 g/ 500 ml larutan asam/basa.
Having More Plants at Home During the Covid-19 Pandemic: Is It Just Following A Trend?
Authors: Afrianto Whisnu Febry , Diannita Rindang 
Published: February 2022

The Covid-19 pandemic has drastically changed the social and environmental conditions. People should stay at home for self-isolation and social distancing to avoid the spread of Covid-19. People tend to have more plants at home associated with psychological impact during self-isolation. This study aimed to describe having more plants during the Covid-19 pandemic in Indonesia. A nationwide cross-sectional survey involving an online survey was carried out of an Indonesian population-based sample of 412 respondents from 26 provinces, considered demographic, social, and behavioral variables. The variable affecting the having plants during the Covid-19 pandemic was analyzed using non-parametric analysis of the Kruskal Wallis test. The result showed that people preferred having more plants during the Covid-19 pandemic to reduce negative emotions and feelings. The majority of the respondents tend to have 1-10 plants and spend around <100 K (IDR) monthly to maintain and buy plants. They think that efforts to maintain were the most challenging in gardening activities. The majority of the respondents had potted plants at home to make their homes greener. The Kruskal Wallis test showed theÃÂ p-valueÃÂ (>0.05) for all characteristic respondents. Thus, it can be concluded that there was no significant difference regarding the motivation to have planted during the Covid-19 pandemic from characteristic respondents.
UJI EFEKTIVITAS ANTI BAKTERI EKSTRAK BIJI PEPAYA (Carica papaya L.) TERHADAP KELANGSUNGAN HIDUP IKAN NILA (Oreochromisniloticus) PASCA INFEKSI Aeromonas hydrophila
Authors: Levia Kherma , Waspodo Saptono , Astriana Baiq Hilda 
Published: February 2022

Maraknya budidaya ikan nila ini tidak bisa menghindari penerapan intensifikasi budidaya yang tinggi. Hal ini dapat memberikan dampak negatif, salah satunya timbulnya penyakit Motile Aeromonas Septicaemia (MAS). Motile Aeromonas Septicaemia (MAS) merupakan salah satu penyakit yang dapat menyerang ikan nila, penyakit ini disebabkan oleh bakteri Aeromonas hydrophyla. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan ekstrak biji pepaya (Carica papaya L.) terhadap kelangsungan hidup ikan nila, pertumbuhan ikan nila dan profil sel darah merah ikan nila yang terinfeksi bakteri A. hydrophila. Metode penelitian yang digunakan adalah metode eksperimental dengan ancangan Acak Lengkap (RAL) adapun perlakuannya yaitu P1 (perendaman dengan konsentrasi 20%), P2 (30%), P3 (40%), P4 (50%) dilakukan selama 30 hari. Hasil penelitian menunjukkan kelangsungan hidup tertinggi yaitu pada perlakuan P3 yaitu 66,66% dan terendah yaitu P0 yaitu 13,33%, Hasil uji darah merah menunjukkan darah ikan sehat rata-rata diatas 30x10? sel/mm³ sedangkan ikan sakit ikan yang telah diinfeksi bakteri A. hydrophila menunjukka rata-rata diatas 5x10? sel/mm³ dan ikan pada perlakuan P1, P2, P3, dan P4 yang telah direndam menggunakan ekstrak biji pepaya dan di pelihara selama 14 hari menujukkan hasil uji darah diatas 25x10? sel/mm³ sedangkan ikan yang tidak direndam menunjukkan hasil perhitungan yaitu 17,4x10? sel/mm³. Kesimpulan dari penelitian ini yakni perlakuan P2 dengan dosis 30% direkomendasikan untuk tingkat kelangsungan hidup ikan nila. P1 dengan dosis 20% dengan pemberian ekstrak biji pepaya berpengaruh nyata terhadap jumlah sel darah merah ikan nila. Sedangkan untuk pertumbuhan panjang mutlak dan berat mutlak ikan nila, perendaman ekstrak biji pepaya tidak memberikan pengaruh nyata.
Development of science interactive student worksheets oriented higher-order thinking skills for elementary school student
Authors: Khair Baiq Niswatul , Makki Muhammad , Astria Fitri Puji , Erfan Muhammad , Hasnawati Hasnawati 
Published: February 2022

This researchÃÂ aims to develop science interactive studentsÃ¢â¬â¢ worksheets oriented to higher-order thinking skills for the fifth elementary school students. The developed student worksheet aims to provoke and familiarize students with their higher-order thinking ability. The cognitive domain of higher-order thinking skills involved is analytical skills. The 4D development model (define, design, develop, and disseminate) was used in this study. The data in this study were collected using a validation sheet. Data analysis was carried out in a quantitative descriptive. The development results showed that science interactive students worksheets oriented to higher-order thinking skills developed were valid with an average score of 3.33. Secondly, the score for the practicality of using the science interactive studentsÃ¢â¬â¢ worksheets was 3.69 and 3.38 according to teachers and students, respectively. In conclusion, the science interactive studentsÃ¢â¬â¢ worksheets oriented towards higher-order thinking skills, are valid and practical to be used by students of the fifth-grade elementary school.
EFEKTIVITAS PEMBELAJARAN MATEMATIKA DENGAN PENDEKATAN MATEMATIKA REALISTIK INDONESIA TERHADAP KEMAMPUAN BERPIKIR KRITIS DITINJAU DARI MOTIVASI BELAJAR SISWA KELAS VII SMP NEGERI 3 PANDAK TAHUN AJARAN 2013/2014
Authors: Apriyani Dwi , Sujadi A. A 
Published: February 2022

The research aims to know the effectiveness of learning mathematics with Indonesian Realistic Mathematics Approach to critical thingking skills of student class VII SMP Negeri 3 Pandak academic year 2013/2014, to know which the critical thingking skills that is better among high, medium, and low student motivation, to know interactions between application of learning model and student motivation. Kind of the research is a quasi-eksperimental. The population of this research was all students of class VII consist of 4 classes in SMP Negeri 3 Pandak academic year 2013/2014. The research sample of 2 classes was taken by cluster random sampling technique. The instrumens of the research consist of documentation, critical thingking math test,observation and questionnaire. The data analysis uses descriptive analysis and two-way ANOVA. The results of the analysis in the research are : 1) Learning mathematics with Indonesian Realistic Mathematics Approach is more effective than conventional approaches to critical thingking, 2) Critical thingking skills of student who have high motivation to learn are Â better than students with medium and low learning motivation, critical thingking skills of students with medium learning motivation are better than students with low learning motivation, 3) There is no interaction between learning model and motivation to learn of students based on the critical thingking skills. Thus, the suggestion of the result of this research is learning mathematics with Indonesian Realistic Mathematics Approach can be implemented to improve studentâ€™s critical thingking.
PENERAPAN TEKNIK JARIMATIKA DALAM UPAYA MENINGKATKAN KEMAMPUAN OPERASI HITUNG PERKALIAN BILANGAN
Authors: Nasution Tetty Khairani , Surya Edy 
Published: February 2022

This study aims to improve the ability of multiplication arithmetic operations through the application of Jarimatika techniques. Classroom action researchÂ implemented collaborative classroom teachers in two cycles. The subject of research grade II SD N 100070 Lobulayan T.A 2014 amounted to 22 students. Data collection techniques: tests, observation, interviews and documentation. Descriptive data analysis techniques. The result increased the percentage of the total value and average grade. In the first cycle of meeting one class average 64.09 (50%) and the second meeting of the average grade 69.27 (68.18%). First cycle first meeting an average grade 77.59 (81.81%) and the second meeting of the average grade 81.77 (86.36%).
Kemampuan Komunikasi Matematika melalui Model Pembelajaran Situation Based Learning
Authors: Lestari Indah , Ramdani Irham , Mailizar Mailizar 
Published: February 2022

ABSTRAK Penelitian ini dilakukan berdasarkan pada kemampuan komunikasi matematika mahasiswa yang masih rendah, mahasiswa cenderung mengalami kesulitan dalam mengkomunikasikan persoalan matematika dalam bentuk essay atau soal cerita ke dalam bentuk kalimat matematika sehingga mahasiswa cenderung tidak bisa menyelesaikan soal tersebut. Solusi dalam permasalahan ini bisa dilakukan dengan menerapkan model pembelajaran yang tepat, model pembelajaran Situation Based Learning menjadi solusi yang dilakukan peneliti untuk meningkatkan kemampuan komunikasi matematika karena model ini menekankan pada proses pembelajaran yang membuat mahasiswa belajar dengan cara berpikir berdasarkan situasi atau kondisi dari soal yang diberikan. Populasi dari penelitian ini adalah seluruh mahasiswa semester 6 program studi pendidikan matematika Universitas Indraprasta PGRI Tahun Ajaran 2019/2020. Sampel penelitian ini adalah mahasiswa kelas R5C sebagai kelas eksperimen dan kelas R5D sebagai kelas kontrol yang dipilih dengan teknik simple random sampling berjumlah 50 mahasiswa. Instrumen yang digunakan dalam penelitian ini adalah instrument tes berupa soal essay berjumlah 10 soal yang telah melalui tahap validasi. Analisis data dalam penelitian ini menggunakan uji-t. Penelitian menunjukkan adanya pengaruh yang signifikan penerapan model pembelajaran Situation based learning terhadap kemampuan komunikasi matematika.Â ABSTRACTCommunicating mathematical problems in the form of essays or story problems into mathematical sentence form so that students tend not to be able to solve these problems. The solution to this problem can be done by applying the right learning model, the Situation-Based Learning model becomes the solution made by researchers to improve mathematical communication skills because this model emphasizes the learning process that makes students learn by thinking based on the situation or condition of the given problem. The population of this study was all 5-semester students of the Mathematics Education Indraprasta University PGRI University Academic Year 2019/2020. The sample of this study was R5C class students as an experimental class and R5D class as a control class selected by a simple random sampling technique totaling 50 students. The instrument used in this study was a test instrument in the form of essay questions totaling 10 questions that had passed the validation stage. Analysis of the data in this study used the t-test. Research shows that there is a significant influence on the application of the Situation based learning model to mathematical communication skills.
Penerapan Pembelajaran Think Pair Share Dilengkapi Ajaran Asah, Asih, Asuh untuk Meningkatkan Motivasi dan Prestasi Belajar Matematika
Authors: Marlena Nella Evina , Harini Esti , Agustito Denik 
Published: February 2022

ABSTRAK Penelitian ini bertujuan untuk mendeskripsikan proses pembelajaran matematika dengan menggunakanÂ Model Pembelajaran TPS (Think Pair Share) dilengkapi ajaran asah, asih, asuh dalam meningkatkan motivasi dan prestasi belajar matematika pada siswa kelas VIII A SMP N 2 Banguntapan. Penelitian ini merupakan penelitian tindakan kelas (PTK) yang dilakukan dalam dua siklus. Subjek penelitian ini adalah siswa kelas VIII SMP N 2 Banguntapan. Tahun Ajaran 2019/2020, yang jumlah siswanya adalah 30 siswa. Teknik pengumpulan data pada penelitian ini dilakukan dengan teknik observasi, teknik tes, dan teknik dokumentasi. Hasil penelitian menunjukkan persentase rata-rata pencapaian motivasi belajar siswa dari pra siklus sebesar 58,33% meningkat menjadi 66,11% pada siklus I dan 82,78% pada siklus II. Sedangkan prestasi belajar matematika siswa dilihat dari rata-rata nilai kemampuan awal 63,83 menjadi 75,67 pada siklus I dan meningkat menjadi 82,07 pada siklus II.ABSTRACT This study aims to describe the process of learning mathematics using the TPS Learning Model (Think Pair Share) equipped with teachings, compassion, fostering in increasing motivation and learning achievement of mathematics in class VIII A students of SMP N 2 Banguntapan. This research is a kind of class action research (CAR) which is conducted in two cycles. The subjects of this study were eighth grade students of SMP N 2 Banguntapan. Academic Year 2019/2020, the number of students is 30 students. Data collection techniques in this study were carried out with observation techniques, test techniques, and documentation techniques. The results showed the average percentage of students' motivation achievement from pre-cycle of 58.33% increased to 66.11% in the first cycle and 82.78% in the second cycle. While students' mathematics learning achievement can be seen from the average initial ability score of 63.83 to 75.67 in the first cycle and increased to 82.07 in the second cycle.
Analisis Kemampuan HOTS Siswa pada Materi Trigonometri Ditinjau dari Gaya Belajar David Kolb
Authors: Gunawan Gunawan , Chasanah Aprilia Nurul , Hendrastuti Zuida Ratih , Prihatiningrum Wahyu 
Published: February 2022

ABSTRAK Tujuan penelitian ini untuk menganalisis kemampuan HOTS siswa pada materi trigonometri berdasarkan gaya belajar. Penelitian ini merupakan penelitian deskriptif kualitatif. Subjek penelitian adalah siswa kelas XI MIPA 2 di MAN 2 Magelang sebanyak 34 siswa. Instrumen yang digunakan berupa instrumen tes. Analisis data dilakukan melalui reduksi data, penyajian data, dan penarikan kesimpulan. Kemampuan HOTS siswa gaya belajar divergen, subjek mampu dalam indikator menganalisis dan mengevaluasi tetapi subjek belum mampu dalam indikator mencipta. Kemampuan HOTS siswa gaya belajar asimilasi, subjek mampu pada indikator mengevaluasi tetapi belum mampu pada indikator menganalisis danÂ mencipta. Kemampuan HOTS siswa gaya belajar konvergen, subjek mampu pada indikator menganalisis dan mengevaluasi tetapi belum mampu pada indikator menganalisis. Kemampuan HOTS siswa gaya belajar akomodasi, subjek mampu dalam indikator menganalisis dan mengevaluasi tetapi belum mampu pada indikator mencipta.Â ABSTRACTThe purpose of this study was to analyze students' HOTS abilities on trigonometric material based on learning styles. This research is a qualitative descriptive study. The research subjects were 34 students of class XI MIPA 2 in MAN 2 Magelang. The instrument used was a test instrument. Data analysis was performed through data reduction, data presentation, and concluding. HOTS ability of students in learning styles is divergent, the subject can analyze and evaluate indicators but the subject has not been able to create indicators. HOTS ability of students learning style assimilation, the subject can evaluate indicators but not yet able to analyze and create indicators. HOTS ability of students in convergent learning styles, the subject can analyze and evaluate indicators but not yet able to analyze indicators. HOTS ability of students in the learning style of accommodation, the subject can analyze and evaluate indicators but not yet able to create indicators.