bluuebunny/crossref_metadata_2025 huggingface dataset:
Entrepreneurial Intentions of the Graduating Students in Oman: A Case Study - Sohar University
Authors:   Sohar University, Al Jahwari Riham , Khan Firdouse ,   Sohar University, Al-Shibli Rofida ,   Sohar University, Al-Dahoori Najoom ,   Sohar University
Published: November 2020

Purpose of the study: The objective of the study is to critically do a review of literature on the factors impacting the entrepreneurial intention of the graduating students and to critically analyze the impact of such factors on the entrepreneurial intention of the graduating students. Design/Methodology: 269 undergraduate students were selected on a random sampling basis from Sohar University and were considered to be the sample for the study. An online questionnaire was shared through digital media for survey purposes which were filled by students. The statistical analysis was carried out using excel and SPSS. Findings: The findings of the study reveal that the Entrepreneurial intention is influenced by Graduate Potentials, Creativity, and Education of the students and not by Government support. The undergraduate students are developing creative skills and bringing out their entrepreneurial potentials and improvising their practical knowledge through their education. Implications: It was suggested that the graduating students need proper guidance to fulfill their entrepreneurial intention which is in the hands of teachers. Students should be exposed to the development of various skills – creativity, communication, presentation, marketing, funds management, etc. and they should be invited to a platform where competitions of all innovative kinds should be conducted regularly and the participants should be guided with assistance to improve their ideas. Originality: This research work is one of its first kind as no study was conducted before focusing on the entrepreneurial intentions of the students in Oman. Keywords: Entrepreneurial Intention, Entrepreneurial Potentials, Creativity, Government support, Education.
Demand for Sweetpotato Quality Using the Hedonic Price Model in Northwestern Leyte
Authors:   College of Education and Agricultural Technology, Leyte State University, Villaba, Leyte, Philippines, Veloso, Merlita , Alkuino Jose
Published: November 2020

Research conducted to estimate implicit prices of sweetpotato using the Hedonic Price Model revealed that consumers attach economic importance to sweetpotato quality. Both urban and rural consumers were responsive to changes in quality characteristics. The price paid by rural consumers is affected significantly by age of consumers and quality charactersitics such as color, shape and starch content. The price paid by urban consumers is strongly influenced by color, shape, protien, starch, sugar and fiber content of sweetpotatoes. Among income classes, low income consumers were more discriminating than high-income consumers.
Citation Analysis of R&D Articles of VICARP Researches
Authors:   Department of Development Communication, Leyte State University, Visca, Baybay City, Leyte, Ramirez Ludito , Cagasan Editha
Published: November 2020

The paper presents the citation sources of VICARP researchers' published articles in refereed journals and other publications. A total of 90 sample published articles composed of 30 samples each from peer-reviewed journals, "non-refereed journals" and other R&D publications were subjected to citation analysis. Authored by 151 researchers, the entire 90 sample articles had a total of 881 citation sources. About one-half (50.5%) of the reference materials cited in the sample articles came from gray literatures. About one-fourth (27.1%) were citations from books. Only about a fourth (22.4%) were taken from refereed journals. Among the gray literatures used by the researchers were conference proceedings, these, bulletines/newsletters, monographs, terminal reports, manuals, abstracts, working papers, annual reports, and other non-refereed publications.
Tree Utilization Patterns in Selected Protected Areas in the Visayas
Authors:   Department of Forest and Wildlife Mangement and Conservation College of Forestry and Natural Resources, Leyte State University, Baybay City, Leyte, Philippines, Patindol Teofanes , Pacardo Enrique ,   School of Environmental Science and Management, UP Los Baños, College, Laguna, Philippines
Published: November 2020

Tree resources in protected areas in the Visayas were mainly used for construction materials and firewood. Inhabitants inside prodtected areas harvested timber for their own light construction needs and for firewood mostly for household consumption. Illegal harvest of timber for commercial trade was still prevalent but perpetrated by highly influential people staying outside protected areas. Participation of local inhabitants was limited on the transport of lumber from the cutting area to the designated landing sites. Most preferred timber species for construction came from the Dipterocarp family, which are available only in secondary and primary forests. Owing to their being readily available in the locality, exotic species also proved a good source of construction materials. The most preferred firewood species wer gap species collected from nearby regeneration areas and woodlots. Local availability and abundance were the primary considerations with respect to preferences for firewood species.
Indigenous Knowledge and Nutrient Management Practices of Farmers Growing Sweetpotato in the Uplands of Pinabacdao, Samar
Authors:   Visayas State University, Philippines, Tulin Anabella , Asio Victor
Published: November 2020

This study aimed at determining if the sweetpotato growers in the locality of Parasanon, Pinabacdao, Samar possess certain local knowledge about their soil and crops, particularly sweetpotato. Informal and formal interviews were the primary methods used in gathering information for the study. The demographic traits of the farmers clearly differed but they adhered to the same knowledge system regarding the attributes of the soil in their native dialect, the farmers have a soil classification scheme based on textual characteristics and certain indicators of soil fertility and plant health. Moreover, the farmers are also aware of certain problems connected to their soils or crops but these do not bother them because they have the experience in circumventing field-related problems. Generally, the upland farmers of Pinabacdao do not use degraded soils for sweetpotato production. They ordinarily leave the area temporarily and relocate to more fertile grounds in the forest edges if they find their soils to be no longer productive. None among the local farmers use any of the improved sweetpotato production technologies which were shoen or given to them by technicians connected either to R & D project conducted previously in the locality or the Department of Agriculture.
Experiences in Acquiring Titles Among Land Claimants in LAMP Municipalities in Leyte
Authors:   Visayas State University, Philippines, Gravoso Rotacio , Bulayog Ernesto , Gerona Ma. Anabelle
Published: November 2020

This paper presents land claimants' experiences in acquiring land titles under the sporadic and LAMP land titling schemes. Data were gathered using an interview schedule. Respondents were land claimants from the pilot areas of LAMP-PIO I. Most of them were old, married obtained high school education, and had annual income that fell below the poverty line. Findings showed that under tha LAMP scheme, claimants were able to get their title within about a year. On the other hand, it took an average of 7 years for land claimants to get their title in the sporadic scheme. Respondents who claimed that the LAMP scheme is more effective said that it is faster, cheaper and most importantly, has more systematic procedures.
Properties and Constraints of Red-Yellow and Volcanic Ash Soils Planted to Rootcrops in the Philippines
Authors:   Visayas State University, Philippines, Tulin Anabella
Published: November 2020

Soil samples representing hightly weathered Red-Yellow and Volcanic Ash soils were collected from 45 pedons of different rootcrop producing provinces in the Philippines. This research was conducted to provide a comprehensive data on the properties and constraints of Red-yellow and Volcanic Ash soils planted to rootcrops through determination of the soils' various morphological, physical, and chemical properties. Some of the identified soil constraints associated with Red-Yellow and Volcanic Ash soils planted to rootcrops include : low organic matter, soil acidity, Al toxicity, low CEC, low amounts of exchangeable bases such as Ca, K, Mg, and Na, low P availability, high clay content, and highly compacted soils.
Farming Systems and Crop Diversity in Selected Protected Areas in the Visayas
Authors:   Visayas State University, Philippines, Patindol Teofanes
Published: November 2020

Agricultural Production systems inside protected areas are shifting from subsistence to cash economy. Along this shift, farming systems are also significantly changing from low to high intensity cropping, characterized by continuous cultivation and heavy application of inorganic fertilizer and pesticides. Based on the main crops grown, spatial arrangement and cropping intensities, the different crop production systems were identified such as traditional mosaic, low-input mosaic, low-input abaca-based intercrop, low input staples, and high input vegetables. Crop diversity at the farm level is generally low. Perennial crops are integrated into the farming system but are limited to few species of fruit crops and exotic forest trees. Farm level species diversity is positvely realted to age, number of years with livelihood projects. Livelihood module must be implemented and institutinal support be strengthened to lessen dependence of inhabitants of protected areas on these less sustainable production systems.
Foreign Exchange Risk Management in Indian Commercial Banks: Perspectives of Bankers and Customers
Authors: N. Madhuchandrika
Published: November 2020

A study regarding the foreign exchange risk management in Indian Commercial Banks is proposed to be conducted in Bengaluru city. The main objective of the study will be to examine the foreign exchange risks faced by Banks and their customers, to understand the different instruments used to hedge those risks and the efficacy of those measures in managing the risks. The study will be considering the scenario from a banker and customer perspective. The research will be entirely quantitative in nature and data will be collected through structured questionnaires. The data so collected will be analysed using various statistical techniques and financial ratios. The proposed study is expected to further the cause of forex risk management.
Applying Multi-Index approach from Sentinel-2 Imagery to Extract Urban Area in dry season (Semi-Arid Land in North East Algeria)
Authors: Rouibah K. , Belabbas M.
Published: November 2020

The mapping of urban areas mostly presents a big difficulty, particularly, in arid and semi-arid environments. For that reason, in this research, we expect to increase built up accuracy mapping for Bordj Bou Arreridj city in semi-arid regions (North-East Algeria) by focusing on the identification of appropriate combination of the remotely sensed spectral indices. The study applies the ‘k–means’ classifier. In this regard, four spectral indexes were selected, namely normalized difference tillage index (NDTI) for built-up, and both bare soil index (BSI) and dry bare-soil index (DBSI), which are related to bare soil, as well as the normalized difference vegetation index (NDVI). All previous spectral indices mentioned were derived from Sentinel-2 data acquired during the dry season. Two combinations of them were generated using layer stack process, keeping both of NDTI and NDVI index constant in both combinations so that the multi-index NDTI/BSI/NDVI was the first single dataset combination, and the multi-index NDTI/DBSI/NDVI as the second component. The results show that BSI index works better with NDTI index compared to the use of DBSI index. Therefore, BSI index provides improvements: bare soil classes and built-up were better discriminated, where the overall accuracy increased by 5.67% and the kappa coefficient increased by 12.05%. The use of k-means as unsupervised classifier provides an automatic and a rapid urban area detection. Therefore, the multi-index dataset NDTI/ BSI / NDVI was suitable for mapping the cities in dry climate, and could provide a better urban management and future remote sensing applications in semi-arid areas particularly.
Patrones espaciotemporales de las observaciones de Sentinel-2 a nivel de imagen y píxel sobre el territorio mexicano entre 2015 y 2019
Authors: Solórzano J.V. , Mas J.F. , Gao Y. , Gallardo-Cruz J.A.
Published: November 2020

Sentinel-2 imagery has the highest temporal, spectral and spatial resolution to monitor land surface among the freely available multispectral collections. However, the possibility to use these images in different applications is conditioned by the number of cloudless observations available for a certain spatiotemporal window. Thus, the objective of this article is to analyze the number of Sentinel-2 observations available for the Mexican territory at image and pixel level. In the first case, the total number of available images and its cloud cover percentage was calculated; while in the second case, the number of cloudless observations was estimated for each pixel. Additionally, in order to take into account the territory diversity, the monthly mean number of cloudless observations, as well as the proportion of its surface with at least one cloudless observation in monthly, bimonthly, trimonthly and annual intervals, was computed for each one of the seven ecoregions of the country. The results show that annually, the number of valid observations per pixel is between 0 and 121 observations, while in monthly evaluations, between 0 and 6.58 observations. Additionally, in the 2017-2019 period annual observations can be obtained for the entire Mexican land surface, while in 2018-2019, monthly or trimonthly evaluations can be achieved, depending on the ecoregion. We consider that these results will provide useful information for researchers that are interested in using Sentinel-2 imagery for different applications.
Clasificación de usos y cubiertas del suelo y análisis de cambios en los alrededores de la Reserva Ecológica Manglares Churute (Ecuador) mediante una serie de imágenes Sentinel-1
Authors: Vélez-Alvarado D.A. , Álvarez-Mozos J.
Published: November 2020

Management practices adopted in protected natural areas often ignore the relevance of the territory surrounding the actual protected land (buffer area). These areas can be the source of impacts that threaten the protected ecosystems. This paper reports a case study where a time series of Sentinel-1 imagery was used to classify the land-use/land-cover and to evaluate its change between 2015 and 2018 in the buffer area around the Manglares Churute Ecological Reserve (REMCh) in Ecuador. Sentinel-1 scenes were processed and ground-truth data were collected consisting of samples of the main land-use/land-cover classes in the region. Then, a Random Forests (RF) classification algorithm was built and optimized, following a five-fold cross validation scheme using the training dataset (70% of the ground truth). The remaining 30% was used for validation, achieving an Overall Accuracy of 84%, a Kappa coefficient of 0.8 and successful class performance metrics for the main crops and land use classes. Results were poorer for heterogeneous and minor classes, nevertheless the performance of the classification was deemed sufficient for the targeted change analysis. Between 2015 and 2018, an increase in the area covered by intensive land uses was evidenced, such as shrimp farms and sugarcane, which replaced traditional crops (mainly rice and banana). Even though such changes only affected the land area around the natural reserve, they might affect its water quality due to the use of fertilizers and pesticides that easily. Therefore, it is recommended that these buffer areas around natural protected areas be taken into account when designing adequate environmental protection measures and polices.
MENINGKATKAN HASIL BELAJAR SISWA MELALUI PEMBELAJARAN DENGAN MODEL DISCOVERY LEARNING PADA SISWA KELAS X MIPA 5 SMA N 1 BANTUL TAHUN PELAJARAN 2018/2019
Authors: Sutrisno
Published: November 2020

This study aims (1) to describe the learning process with Discovery Learning models among students; and (2) Improve the learning outcomes in subject of Bahasa Indonesia by application of discovery learning models. The subjects of this study were students of class X MIPA 5 SMA N 1 Bantul at 2018/2019 Academic Year. The study was conducted in three months from January to the end of March 2019. This study was a classroom action research (CAR), carried out in two cycles. Each cycle consists of four activities: (1) planning, (2) implementation, (3) observation, and (4) reflection. There are five types of data collection techniques used in this study, i.e. (1) observation, (2) questionnaire, (3) guided interviews, and (4) documentation. The results of this study show that (1) Discovery learning learning models improved teacher performance in learning, improved the performance of students in learning, and obtained excellent responses from students; (2) Implementation of discovery learning models improved student learning outcomes. The average value of student learning outcomes with the discovery learning model in cycle I was 82 with sufficient predicate, then increased to 94 in cycle II with very good predicate. The learning completeness in cycle I was 81.25% and increased to 100% in cycle II.
The Key Element of Modeling Instruction’s Learning Cycle in 21th Century Skills Learning Process
Authors: Imam Wicaksono
Published: November 2020

This research aim to know:1)implementation of modeling instruction in student’s critical thinking, collaboration, creativity and innovation, and communication skill’s training; 2)Modeling instruction’s key element in 21 century skills training. This research uses previous research data in student’s collaboration and communication profile. Data for Critical thinking and creativity and innovation uses learning implementation’s material in previous research and other reference. Subject research is 7th grade student in 2018/2019 year periode. Data analysed in quantitative methode. Modeling instruction is integrated in 2 different learning model, inquiry and STEM. Student’s skill in collaboration and communication change in different quantity of student’s criteria. Student’s proportion in “below standart” criteria  is same, in “approaching standart” criteria, student in inquiry have less proportion than in STEM, but in “qualified standart” criteria inquiry have more proportion than STEM. In critical thinking and creativity and innovation, both learning model contain activity to train this skills. STEM have more proportion than inquiry, hinger complexity and more modeling instruction’s learning cycle. Research conclution are:1)Modeling instruction can implemented in student’s critical thinking, collaboration, creativity and innovation and communication training; 2)Modeling instruction’s key element in 21st Century Skills training is flexibility, compability , and repeatable and continuity of the learning cycle.
Initiating the Development of the Ubiquitous Learning Environment as a Projection of the Ubiquitous Environment in South Korea
Authors: Wirawan Yogiyatno
Published: November 2020

Indonesia's Internet users mostly are high school students. This is an opportunity for education activists to provide learning system that can be accessed anytime and anywhere just similar to regular websites on Internet. Learning environment that is accessible anytime and anywhere is built based on ubiquitous computing. Republic of Korea is a country that has a program to develop ubiquitous city, which one of its service is ubiquitous learning environment. In this study, a literature study about ubiquitous computing, ubiquitous learning environment, its characterics and components, also its possibility to implement on Indonesian schools was conducted. This study shows that ubiquitous learning environment development, with its components are a server providing learning management system software, hotspot access points, smartphones that have an application installed to access the learning management system, and radio frequency identification system, can be done in any education unit that has supporting factors for those components.
PERBANDINGAN EFEKTIFITAS MODEL PEMBELAJARAN STAD DENGAN SNOWBALL THROWING DITINJAU DARI MOTIVASI BELAJAR DAN HASIL BELAJAR
Authors: Mulatsih Bekti
Published: November 2020

Penelitian ini bertujuan untuk mengetahui ada tidaknya perbedaan motivasi belajar sebelum dan sesudah diterapkan model pembelajaran STAD maupun SN, ada tidaknya perbedaan hasil belajar kimia yang menggunakan model pembelajaran STAD dengan SN jika pengetahuan awal dikendalikan secara statistik. Penelitian ini merupakan penelitian eksperimen. Penentuan sampel menggunakan purposive random sampling, dengan sampel kelas XI MIPA 1 dan XI MIPA 3. Desain penelitian ini adalah desain dua faktor (2 model pembelajaran), dua sampel (kelas eksperimen 1 dan 2), dan satu kovariabel (pengetahuan awal). Data penelitian berupa data pengetahuan awal kimia, motivasi belajar, dan hasil belajar kimia kelas eksperimen 1 dan 2. Data dianalisis dengan uji-t dan analisis kovarian . Hasil uji t sama subjek kelas eksperimen 1 tidak ada perbedaan motivasi belajar sebelum dan sesudah pembelajaran STAD dengan Sig. (2-tailed) 0,117 > 0,05. Untuk kelas eksperimen 2 tidak ada perbedaan motivasi belajar sebelum dan sesudah pembelajaran SN dengan Sig. (2-tailed) 0,137 > 0,05. Hasil uji-t beda subjek tidak ada perbedaan motivasi belajar kimia yang mengikuti pembelajaran STAD maupun SN dengan Sig. (2-tailed) 0,569 > 0,05. Hasil anakova diperoleh F=15,373; Sig.< 0,01, artinya ada perbedaan hasil belajar kimia yang mengunakan pembelajaran STAD dengan SN jika pengetahuan awal dikendalikan secara statistik. Dapat disimpulkan model pembelajaran STAD lebih efektif dalam meningkatkan hasil belajar kimia peserta didik kelas XI SMA N 1 Banguntapan tahun pelajaran 2019/2020 dibanding dengan SN.
PENERAPAN STRATEGI SENTENCE COLLECTION UNTUK MENINGKATKAN HASIL BELAJAR MENULIS TEKS EKSPLANASI
Authors: Budi Rahayu
Published: November 2020

Penelitian ini merupakan Penelitian Tindakan Kelas (PTK) yang bertujuan untuk mengetahui strategi pembelajaran sentence collection dapat meningkatkan hasil belajar menulis teks eksplanasi peserta didik XI MIPA-2 SMA Negeri 7 Yogyakarta tahun pelajaran 2019/2020. Metode penelitian ini adalah cooperative learning dengan strategi sentence collection. Penelitian Tindakan Kelas (PTK) ini dilakukan dengan dua siklus. Setap siklus terdiri dari empat tahap, yaitu: a) persiapan, b) implementasi, c) observasi, dan d) refleksi. Teknik pengumpulan data menggunakan observasi dan tes kinerja. Instrumen pengumpulan data meliputi lembar pengamatan aktivitas guru, lembar penilaian sikap, dan instrumen penilaian teks eksplanasi. Analisis data menggunakan deskriptif kuantitaif untuk mengetahui peningkatan hasil kinerja peserta didik dalam mengikuti pembelajaran menggunakan strategi sentence collection. Hasil penelitian ini menunjukan bahwa pada prasiklus nilai rata-rata hanya 65,78, pada siklus 1 meningkat menjadi 76,75, dan pada siklus 2 meningkat menjadi 84,88. Berdasarkan hasil tersebut dapat disimpulkan bahwa strategi pembelajaran sentence colection dapat meningkatkan hasil belajar menulis teks eksplanasi.
KETERAMPILAN MENULIS KARYA ILMIAH BERBASIS PENDEKATAN PROSES DAN IMPLIKASINYA TERHADAP PENDIDIKAN KARAKTER PADA PESERTA DIDIK KELAS XI MIPA 1 SMA NEGERI 1 BAMBANGLIPURO
Authors: Oktavia Fitriani
Published: November 2020

Penelitian ini bertujuan untuk mendeskripsikan keterampilan menulis karya ilmiah berbasis pendekatan proses dan implikasinya terhadap pendidikan karakter pada peserta didik kelas XI MIPA 1 SMA Negeri 1 Bambanglipuro. Metode penelitian yang digunakan adalah deskriptif kualitatif. Subjek penelitian adalah peserta didik kelas XI MIPA 1 saat pembelajaran karya ilmiah. Prosedur penelitian ini adalah mengangkat permasalahan, mengangkat pertanyaan penelitian, mengumpulkan data yang relevan, melakukan analisis data, dan menjawab pertanyaan penelitian. Teknik pengumpulan data meliputi observasi, wawancara, dan teknik dokumentasi gambar. Teknik analisis data dalam penelitian ini menggunakan analisis deskriptif kualitatif. Hasil penelitian ini adalah pembelajaran menulis karya ilmiah dapat digunakan sebagai sarana implementasi pendidikan karakter. Hal tersebut terwujud dari aktivitas-aktivitas pembelajaran di kelas dengan menggunakan pendekatan proses. Nilai-nilai karakter yang dapat diperoleh dari pembelajaran menulis karya ilmiah dengan pendekatan proses ialah jujur, kritis, kreatif, inovatif, kerja keras, mandiri, cermat, tanggung jawab, disiplin, teliti, terbuka, berlapang dada, kerja sama, percaya diri, berani, dan amanah. Dengan mengetahui cara penulisan karya ilmiah yang benar dan tertanam nilai-nilai karakter yang baik, maka dapat menanggulangi tindakan plagiarisme.
PENINGKATAN PRESTASI BELAJAR DAN RESPON SISWA MATERI SPLTV MENGGUNAKAN MODEL PEMBELAJARAN GROUP INVESTIGATION PADA SISWA KELAS X MIPA 4 SMA N 1 BANGUNTAPAN
Authors: Suranten Suranten
Published: November 2020

Penelitian ini bertujuan untuk meningkatkan prestasi belajar dan respon siswa pada materi sistem persamaan linear tiga variabel dengan menerapkan model Pembelajaran Group Investigation pada siswa klas X MIPA 1 semester gasal SMA Negeri 1 Banguntapan Bantul Tahun Pelajaran 2019/2020. Proses penelitian diawali dengan metode observasi yang dilakukan oleh peneliti, observer dan subyek penelitian. Pengumpulan data dilakukan dua tahap yaitu data hasil penilaian tengah semester gasal tahun 2019/2020 sebagai data awal, serta data akhir hasil penilaian harian setelah dilakukan tindakan. Penelitian ini menggunakan instrument lembar observasi keterlaksanaan proses pembelajaran, angket dan lembar soal test. Jumlah subyek dalam penelitian ini adalah 36 peserta didik. Penelitian tindakan dengan model Group Investigation berlangsung selama 2 siklus dengan 2 kali pertemua setiap siklus dan satu kali penilaian. Analisa data menggunakan metode analisis diskriptif kuantitatif pada data yang berupa angka dan diskripsi kualitatif pada data hasil observasi yang perlu dianalisis secara sederhana untuk mendeskripsikan fakta yang terjadi. Hasil penelitian menunjukkan model pembelajaran Group Investigation dapat diterapkan dengan baik dan terjadi peningkatan prestasi belajar dan respon siswa dari siklus 1 dan siklus 2.
PENGGUNAAN MODEL PEMBELAJARAN PROBLEM BASE LEARNING (PBL) UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS PADA MATA PELAJARAN KIMIA SISWA KELAS XI MIPA 3 SMAN 1 BAMBANGLIPURO
Authors: Suyanta Suyanta
Published: November 2020

Penelitian ini bertujuan untuk meningkatkan kemampuan berpikir kritis siswa SMAN 1 Bambanglipuro dengan menerapkan model pembelajaran Problem Based Learning (PBL) pada Mata Pelajaran Kimia.Penelitian ini merupakan penelitian tindakan kelas (PTK) yang dilaksanakan dalam 2 siklus. Tiap siklus terdiri atas perencanaan, pelaksanaan tindakan, observasi, dan refleksi. Subjek penelitian adalah siswa kelas XI_MIPA 3 SMAN 1 Bambanglipuro tahun pelajaran 2019/2020. Teknik yang digunakan dalam mengumpulkan data antara lain observasi, tes, dan dokumentasi. Analisis data yang digunakan mencakup penyajian data dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa Model Pembelajaran Problem Based Learning (PBL) pada Mata Pelajaran Kimia dapat meningkatkan kemampuan berpikir kritis siswa dengan hasil observasi kemampuan berpikir kritis pada siklus I sebesar 57,58% dan siklus II sebesar 78,79% dan hasil tes kemampuan berpikir kritis pada siklus I sebesar 45,45%, siklus II sebesar 87,88%. Kesimpulan penelitian ini adalah Model Pembelajaran Problem Based Learning (PBL) dapat meningkatkan kemampuan berpikir kritis siswa kelas XI MIPA 3 SMAN 1 Bambanglipuro.
UPAYA MENINGKATKAN PROSES DAN HASIL BELAJAR GEOGRAFI MELALUI MODEL PEMBELAJARAN COOPERATIVE LEARNING TIPE STAD PADA SISWA KELAS XI IPS SMA NEGERI 1 BANGUNTAPAN
Authors: Suyatinah Suyatinah
Published: November 2020

Penelitian ini bertujuan untuk mengetahui penerapan dan pengaruh pembelajaran tipe STAD terhadap proses dan hasil pembelajaran geografi di kelas XI IPS 3 SMA Negeri 1 Banguntapan tahun ajaran 2018/2019. Penelitian ini termasuk penelitian tindakan kelas. Subjek penelitian adalah 36 siswa kelas XI IPS 3 SMA Negeri 1 Banguntapan. Tahapan penelitian meliputi perencanaan, implementasi, observasi dan refleksi, yang dilakukan dalam 2 siklus. Pembelajaran geografi dengan tipe STAD dilaksanakan dengan mengelompokkan siswa dalam 6 kelompok heterogen untuk membahas tugas yang diberikan kepada masing-masing kelompok. Hasil diskusi kelompok dicatat kemudian dipresentasikan. Pada akhir kegiatan, siswa diberikan kuis individu, kemudian nilainya digabungkan menjadi nilai kelompok. Kelompok yang mendapat nilai tertinggi akan mendapatkan hadiah. Kerjasama siswa terjadi dalam pembelajaran menggunakan STAD. Adanya proses tutor sebaya ini meningkatkan proses pembelajaran siswa kelas XI IPS 3 dari 91,30% pada siklus I, menjadi 96,00% pada siklus II. Tipe STAD juga dapat meningkatkan hasil belajar geografi, hal ini ditunjukan dengan meningkatnya nilai kuis untuk masing-masing kelompok dari 5,68 pada siklus I menjadi 8,27 pada siklus II, juga terjadi peningkatan pada pengajuan Studi awalnya 71,92% pada siklus I dan 82,12%. dalam siklus II.
VIDEO REFERENSI SEBAGAI SOLUSI PEMBELAJARAN ANIMASI 3D DI TENGAH PANDEMI COVID-19
Authors: Daniati Nina Tri
Published: November 2020

Peningkatan jumlah kasus positif di Indonesia akibat wabah Virus Corona Disease 2019 (Covid-19) membuat pemerintah menerapkan social distancing atau menjaga jarak interaksi sosial untuk mencegah dan meminimalisir penyebaran virus ini. Dalam bidang pendidikan, salah satu solusi yang ditawarkan adalah melakukan pembelajaran secara digital atau daring yang berbasis IT. Namun di SMK Negeri 3 Kasihan Bantul khususnya di kelas XI Program Studi Animasi, masih banyak terdapat siswa yang kesulitan dalam membuat gerakan animasi yang realistik. Ditengah kondisi pandemi covid-19 ini sangat sulit bagi siswa untuk belajar gerak animasi tanpa bimbingan dari guru.  Oleh sebab itu untuk siswa yang masih dalam tahapan belajar ini, untuk menghasilkan gerak Animasi 3D yang memiliki kesan realistik membutuhkan media belajar yang dapat digunakan sebagai referensi. Salah satu referensi yang dapat digunakan sebagai media belajar adalah berupa rekaman video. Pembelajaran dengan cara ini meliputi 8 langkah, yakni: (a) Membuat perangkat pembelajaran; (b) Menyampaikan kegiatan pembelajaran; (c) Membuat video referensi secara mandiri; (d) Guru mengevaluasi hasil shoot video referensi; (e) Menggunakan video sebagai referensi dalam membuat gerak animasi; (f) Siswa me-render hasil karyanya; (g) Siswa mempresentasikan hasil karyanya; (h) Guru mereview hasil karya siswa. Hasil penerapan video referensi sebagai solusi pembelajaran animasi di tengah pandemi covid-19 sebagai berikut: (a) Hasil karya siswa yang berupa gerakan animasi bouncing ball menjadi lebih realistik dan mendekati gerak objek sesungguhnya; (b) Siswa mampu menyerap materi pembelajaran dengan baik meskipun tanpa pembelajaran dengan tatap muka secara langsung dengan guru.
PENINGKATAN KREATIFITAS DAN INISIATIF GURU MELALUI MODEL PEMBELAJARAN DARING PADA MASA PANDEMI COVID-19
Authors: Suciati Suciati
Published: November 2020

Penelitian ini bertujuan untuk mengetahui model pembelajaran daring dalam meningkatkan kreatifitas dan inisiatif guru dalam mengelola pembelajaran di rumah di SD Bungkus. Jenis penelitian yang dilakukan yaitu penelitian tindakan sekolah (PTS) dengan menggunakan model dari Elliot. Penelitian diadakan di SD Bungkus Kretek, Bantul pada tahun pelajaran 2019/2020 di masa pandemi Covid 19. Subjek penelitian adalah guru kelas 1, 2, 3, 4, dan guru kelas 5. Obyek penelitian adalah pembelajaran di rumah melalui pembelajaran daring/online dimasa pademi covid-19. Data dikumpulkan melalui observasi dan dokumentasi serta dianalisi secara kualitatif. Hasil penelitian ini menunjukkan bahwa model pembelajaran daring dapat mengatasi pelaksanaan pembelajaran di masa pademi covid 19 melalui kreatifitas dan inisiatif guru dalam mengelola pembelajaran di rumah. Kreatifitas dan inisiatif guru mengalami peningkatan dalam pembuatan RPP sebesar 18%, pengelolaan pembelajaran daring sebesar 12%, keaktifan siswa  sebesar 17% dan nilai belajar siswa sebesar 9,6% dari siklus I ke siklus II dalam pembelajaran. Setelah ada tindakan kompetensi guru secara aktif, kreatif dan inisiatif dalam melaksanakan pembelajaran dirumah, pembelajaran dapat berjalan dengan lancar dalam mengahadapi wabah pandemi covid 19.
MEMBANGUN GENERASI EMAS DENGAN VARIASI PEMBELAJARAN ONLINE DI MASA PANDEMI COVID-19
Authors: Pujiasih Erna
Published: November 2020

Pendidikan merupakan dasar dari kemajuan pembangunan bangsa. Siswa sebagai generasi emas dipersiapkan untuk masa depan. Guru merupakan kunci utama keberhasilan untuk menghasilkan generasi emas Indonesia tahun 2045 yang bermutu dan berkualitas. Negara menghadapi wabah yang sedang terjadi yaitu pandemi COVID-19. Karena situasi demikian maka pemerintah menerapkan pembelajaran secara online dimana siswa belajar di rumah untuk menghindari terpaparnya COVID-19. Tujuan tulisan ini untuk memberikan inspirasi guru dalam menerapkan model pembelajaran online agar siswa tetap mendapatkan pendidikan yang berkualitas. Untuk mengaplikasikannya maka diperlukan pembelajaran yang bervariasi agar siswa  bersemangat  dalam belajar. Pembelajaran  online tersebut dapat dilakukan dengan  cara virtual, berkelompok untuk berdiskusi, pemberian materi dalam bentuk video, rekaman,  powerpoint, modul, lembar belajar, permainan dengan game quizizz dan penilaian secara online. Berdasarkan data kuesioner 322 siswa diperoleh kelebihan dan kekurangan pembelajaran online ini dimana siswa yang senang belajar online di rumah  45% dan siswa yang tidak senang 55%. Kelebihan pembelajaran ini siswa lebih efektif dalam belajar, tidak lelah, menyenangkan, pengalaman baru dan kelemahannya adalah koneksi internet yang kurang baik, siswa kurang paham dengan materi, siswa  merasa lelah, siswa tidak bisa berdiskusi  dengan teman. Berdasar dari masalah tersebut maka pembelajaran online yang menarik dan bervariasi akan memberikan manfaat bagi generasi emas dalam belajar.
OPTIMALISASI KEMAMPUAN BERPIKIR KRITIS SISWA DI TENGAH PANDEMI COVID-19 PADA PEMBELAJARAN TATA RIAS
Authors: Ermavianti Dwi
Published: November 2020

Tujuan dari penulisan best practise ini adalah untuk mengoptimalkan kemampuan berpikir kritis siswa selama masa pandemi Covid-19 yang diimplementasikan pada pembelajaran tata rias melalui media sosial sehingga memberikan dampak positif bagi siswa dan hasil pembelajaran yang memuaskan selama belajar di rumah. Strategi yang digunakan untuk mengoptimalkan kemampuan berpikir siswa pada pembelajaran tata rias adalah dengan diimplementasikannya pembelajaran dengan metode Project Based Learning (PjBL) melalui medsos. Penugasan proyek diberikan kepada siswa melalui sistem daring dan dikumpulkan di akhir semester karena tidak adanya kegiatan praktik dan tatap muka di sekolah, sehingga tidak memungkinkan bagi guru untuk melakukan penilaian setiap saat. Strategi ini dipilih karena dianggap sebagai suatu cara untuk mengajak siswa dapat berpikir kritis di tengah pandemi covid-19 pada pembelajaran tata rias. Implementasi metode PjBL dan penggunaan medsos sebagai sarana pembelajaran tata rias di tengah pandemi covid menunjukkan peningkatan kemampuan siswa untuk berpikir kritis. Diperoleh dampak positif sebagai berikut: sebagian besar siswa cepat merespon pesan yang diberikan guru, siswa cepat mengidentifikasi masalah yang disampaikan guru, siswa mampu memanfaatkan informasi yang diperoleh dari beberapa sumber belajar, siswa mampu menyelesaikan tugas secara bertahap, siswa sering mengajukan pertanyaan melalui chat dengan guru selama pembelajaran dan penyusunan laporan proyek, serta siswa bertanggung jawab terhadap penyelesaian tugas secara mandiri.
USING JBCLASS TO ENHANCE THE STUDENTS’ MOTIVATION IN LEARNING ENGLISH DURING COVID-19 PANDEMIC
Authors: Lestari Yuni
Published: November 2020

This article aims to enhance the motivation in learning English of the tenth grade Students of SMA N 7 Yogyakarta by using JBClass during COVID-19 pandemic. This article is a best practice which was conducted in the 2nd semester, 2019-2020 academic year. The subjects were the tenth grade students of SMA N 7 Yogyakarta which consists of 8 classes (6 science classes and 2 social classes). They were 280 students (178 girls and 102 boys). The steps of problem solving in this best practice by using JBClass as e-learning during COVID-19 pandemic. The instruments of this best practice were taken from the features in JBClass namely material, assignment, evaluation and score recapitulation. The result shows that using JBClass in e-learning during COVID-19 pandemic can enhance the motivation in learning English of the tenth grade students of SMA N 7 Yogyakarta, 2019-2020 academic year. This enhancement can be seen from the higher of mean from each class’ English score and the timeliness in submitting of the assignment and evaluation in e-learning using JBClass during COVID-19 pandemic.
THE IMPLEMENTATION OF PHYSICS EXPERIMENTAL METHOD TO IMPROVE CRITICAL THINKING AND CREATIVITY
Authors: Sunarsih Sunarsih
Published: November 2020

This classroom action research aims firstly is to determine the feasibility of learning by using the physics experimental method, secondly is to improve the critical and creative thinking skills of students of class X MM1 at SMK Negeri 1 Bantul, to improve learning outcomes of class X MM1 students at SMK Negeri 1 Bantul. This research data collection technique using observation, evaluation, field notes, and documentation. This research is a Classroom Action Research (CAR) which has 2 (two) cycles through 4 (four) stages starting from planning, implementing, observing and reflecting. The subjects of this study was 31 students of class X MM1 SMK Negeri 1 Bantul in the academic year of 2018/2019. The results of the study showed that the application of the physics experimental method was able to improve students' critical and creative thinking skills in class X MM1 SMK Negeri 1 Bantul in the 2018/2019 academic year. This is evidenced by the increase in value in the research instrument. In the student observation sheet, the shown 57.18 it was obtained with the criteria lacking at the initial observation stage, in the first cycle the value increased to 60.16 and in the second cycle the value was 69.56. In addition, classical completeness in the evaluation of learning outcomes also increased, at the initial evaluation classical completeness was 35.48%, in cycle I increased to 51.61% and in cycle II classical completeness became 77.42%.
INFOGRAPHIC-BASED PROBLEM POSING APPROACH TO INCREASE PARTICIPATION AND RESULT OF LEARNING IN SOCIOLOGY ONLINE LEARNING
Authors: Hapsara Andhy Surya
Published: November 2020

The aims of this study is to increase in participation and result of learning among students in sociology online learning by using an infographic-based problem posing approach. Data collection in this class action study conducted by using instruments in the form of observation sheets, formative tests, and questionnaires to obtain students' responses. Subjects of the study were thirty-two students at class XII IPS 1 in SMAN 7 Yogyakarta. Data of the study were presented in percentages per cycle, that were then analyzed to compare the data of each cycle. The results of this study show that the class actions given in the form of the infographic project during the online learning process of sociology can improve participation and result of learning among students. The average of students’ online learning participation in cycle I was 81.51%, while in cycle II it increased to 90.36%. The result of learning was assessed from the level of completedness among students, i.e. 53.13% in cycle I, then it was increase to 90.63% in cycle II. It can be concluded from the study that the application of infographic-based problem posing approach increases participation and result of learning during online learning among students in class XII IPS 1, SMAN 7 Yogyakarta.
Source apportionment of black carbon aerosols from light absorption observation and source-oriented modeling: an implication in a coastal city in China
Authors: Deng Junjun , Guo Hao , Zhang Hongliang , Zhu Jialei , Wang Xin , Fu Pingqing
Published: November 2020

Abstract. Black carbon (BC) is the most important light-absorbing aerosol in the atmosphere. However, sources of atmospheric BC aerosols are largely
uncertain, making it difficult to assess its influence on radiative forcing
and climate change. In this study, year-round light-absorption observations
were conducted during 2014 using an aethalometer in Xiamen, a coastal city in Southeast China. Source apportionment of BC was performed and temporal
variations in BC sources were characterized based on both light absorption
measurements and a source-oriented air quality model. The annual average
concentrations of BC from fossil fuel (BCff) and biomass burning
(BCbb) by the aethalometer method were 2932 ± 1444 ng m−3 and 1340 ± 542 ng m−3, contributing 66.7 % and 33.3 % to
total BC, respectively. A sensitivity analysis was performed with different
absorption Ångström exponent (AAE) values of fossil fuel combustion (αff) and biomass burning (αbb), suggesting that
the aethalometer method was more sensitive to changes in αbb than αff. BCbb contribution exhibited a clear diurnal cycle, with the highest level (37.9 %) in the evening rush hour and a seasonal pattern with the maximum (39.9 %) in winter. Conditional probability
function (CPF) analysis revealed the large biomass-burning contributions were accompanied by east-northeasterly and northerly winds. Backward
trajectory indicated that air masses from North and East–Central China were associated with larger biomass-burning contributions. Potential source contribution function (PSCF) and concentration-weighted trajectory (CWT)
suggested that North and East–Central China and Southeast Asia were potential sources of both BCff and BCbb. The source-oriented modeling results showed that transportation, residential and open biomass
burning accounting for 45.3 %, 30.1 % and 17.6 % were the major BC
sources. Among the three fuel catalogs, liquid fossil fuel (46.5 %) was
the largest source, followed by biomass burning (32.6 %) and coal
combustion (20.9 %). Source contributions of fossil fuel combustion and
biomass burning identified by the source-oriented model were 67.4 % and
32.6 %, respectively, close to those obtained by the aethalometer method. The findings provide solid support for controlling fossil fuel sources to limit the impacts of BC on climate change and environmental degradation in
the relatively clean region in China.
Clustering, Connectivity and Flow Responses of Deterministic Fractal-Fracture Networks
Authors: Sahu Ajay K. , Roy Ankur
Published: November 2020

Abstract. It is well known that fracture networks display self-similarity in
many cases and the connectivity and flow behavior of such networks are
influenced by their respective fractal dimensions. In the past, the concept
of lacunarity, a parameter that quantifies spatial clustering, has been
implemented by one of the authors in order to demonstrate that a set of
seven nested natural fracture maps belonging to a single fractal system, but
of different visual appearances, have different clustering attributes. Any
scale-dependency in the clustering of fractures will also likely have
significant implications for flow processes that depend on fracture
connectivity. It is therefore important to address the question as to
whether the fractal dimension alone serves as a reasonable proxy for the
connectivity of a fractal-fracture network and hence, its flow response or,
if it is the lacunarity, a measure of scale-dependent clustering, that may
be used instead. The present study attempts to address this issue by
exploring possible relationships between the fractal dimension, lacunarity
and connectivity of fractal-fracture networks. It also endeavors to study
the relationship between lacunarity and fluid flow in such fractal-fracture
networks. A set of deterministic fractal-fracture models generated at
different iterations and, that have the same theoretical fractal dimension
are used for this purpose. The results indicate that such deterministic
synthetic fractal-fracture networks with the same theoretical fractal
dimension have differences in their connectivity and that the latter is
fairly correlated with lacunarity. Additionally, the flow simulation results
imply that lacunarity influences flow patterns in fracture networks.
Therefore, it may be concluded that at least in synthetic fractal-fracture
networks, rather than fractal dimension, it is the lacunarity or
scale-dependent clustering attribute that controls the connectivity and
hence the flow behavior.
Three decades of tropospheric ozone lidar development at Garmisch-Partenkirchen, Germany
Authors: Trickl Thomas , Giehl Helmuth , Neidl Frank , Perfahl Matthias , Vogelmann Hannes
Published: November 2020

Abstract. Since 1988 two ozone lidar systems have been developed at IMK-IFU
(Garmisch-Partenkirchen, Germany). A stationary system, operated at the
institute, has yielded about 5000 vertical profiles of ozone from next to
the ground to typically 3 km above the tropopause and has contributed data
for a large number of scientific investigations. A mobile system was
successfully operated in a number of field campaigns after its completion in
1996, before it was destroyed in major flooding in May 1999. Both systems
combine high data quality with high vertical resolution dynamically varied
between 50 m in the lower troposphere and 250–500 m below the tropopause
(stationary system). The stationary system has been gradually upgraded over
the years. The noise level of the raw data has reached about
±1×10-6 of the input range of the transient digitizers
after minor smoothing. As a consequence, uncertainties in the ozone mixing
ratios of 1.5 to 4 ppb have been achieved up to about 5 km. The performance
in the upper troposphere, based on the wavelength pair 292–313 nm, varies
between 5 and 15 ppb depending on the absorption of the 292 nm radiation by
ozone and the solar background. In summer it is therefore planned to
extend the measurement time from 41 s to a few minutes in order to improve
the performance to a level that will allow us to trust automatic data
evaluation. As a result of the time needed for manual refinement the number of measurements per year has been restricted to under 600. For longer time
series automatic data acquisition has been used.