bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cultivation prospects of selected plum varieties in dense planting areas of the North Caucasus region of Russia
Authors: Zaremuk R. Sh. , Kochubey A. A. 
Published: May 2021

The intensification of Russian horticulture in modern conditions is impossible without a comprehensive assessment of fruit crop varieties, including already introduced ones, to identify the most ecologically adaptive and productive genotypes for cultivation. The purpose of this study was a comprehensive assessment of the biological potential of newly-introduced plum varieties and the peculiarities of their implementation under the conditions of the North Caucasian horticultural region, intending to select the best ones to expand the regional assortment. The research focus was the plum varieties of Italian breeds: Big Stanley (Prunus domestica L.), Blue Moon (Prunus domestica L.), August Delight (Prunus domestica L.), Dark Sunlight (Prunus domestica L.), Crimson Glo (Prunus cerasifera L.) of differentecological and geographical origin. The August Delight, Blue Moon, Crimson Glo and Dark Sunlight varieties are earlymaturing and start bearing fruits in 3 years and Big Stanley in 4 years. These varieties have a restrained spread, respond positively to alternative methods of crown formation and are technologically advanced. According to the ripening time of the fruits, the varieties can be divided into distinct groups: August Delight and Blue Moon are middle-late, while Big Stanley, Crimson Glo and Dark Sunlight are late. Under the research conditions, the August Delight, Blue Moon and Big Stanley varieties developed large fruits of 44.6-52.4 g, while very large fruits, between 75.5 and 78.9 g, were found in the Crimson Glo and Dark Sunlight varieties, respectively. Under extreme weather conditions, Crimson Glo (19.5 t/ha) and Dark Sunlight (22.3 t/ha) varieties were characterised by higher yields, while for the Big Stanley, Blue Moon, August Delight varieties, the yield was at the level of the control group (15.0-16.2 t/ha). Newly-introduced varieties have several agronomic characters, allowing them to be recommended for expanding the regional assortment and plum supply of late varieties. This strategy can provide an increase in the arrival duration of fresh fruits by 26-30 days.
Use of topinambur in technology of flour products
Authors: Khomych G. Р. , Tkach N. I. , Nakonechna Y. G. , Nesterenko O. V. , Prior N. M. 
Published: May 2021

The article considers the use of Jerusalem artichoke processing products in technology flour yeast products. In terms of productivity, Jerusalem artichokes significantly exceed potatoes, sugar beets, corn and other crops of intensive type, but grow it on small area mainly for fodder purposes. Recently, in the food industry is observed reorientation to the production of products with new qualities, aimed at improving the situation health and disease prevention. Jerusalem artichoke is a unique raw material that can increase the biological value of finished products. Useful properties of Jerusalem artichoke are used to strengthen the immune system, reduce the risk of heart attack and stroke, eliminate salt deposits in the joints, in the therapeutic diet for diabetes. However, its limited use in the processing industry is due to the rapid enzymatic darkening of Jerusalem artichoke tubers during processing. Given the specific properties of Jerusalem artichoke, it is advisable to investigate the enzymatic darkening of Jerusalem artichoke tubers during processing by determining the activity of the enzyme polyphenol oxidase and the use of Jerusalem artichoke puree in the technology of yeast dough. Analysis of tubers and Jerusalem artichoke puree was performed by organoleptic and physicochemical indicators. The quality of finished products was controlled by organoleptic, physicochemical and structural and mechanical indicators, among which special attention was paid to indicators acidity, humidity, porosity, shape stability. The activity of the enzyme in whole and crushed Jerusalem artichoke tubers and its effect on the activity of the enzyme pre-blanching in water for 10 minutes It is determined that when blanching is a partial inactivation of the enzyme polyphenol oxidase, which prevents darkening of raw materials during grinding. The effect of adding Jerusalem artichoke puree in the amount of 10, 15 and 20 % was studied on gluten of wheat flour. The partial replacement of wheat flour in mashed Jerusalem artichoke leads not only to a decrease in the amount of gluten, but also to a change in its quality. The gluten becomes more elastic, the extensibility decreases, and with the addition of 20 % puree gluten is torn. It is determined that the duration of fermentation of dough samples varies depending on the amount introduced Jerusalem artichoke puree. With increasing percentage of Jerusalem artichoke puree in the dough recipe, the duration of dough fermentation is reduced by 6.25…8.75 %. The addition of puree had a positive effect Jerusalem artichoke to increase the yield of the finished product by 5.20…26.34 %. Research of the main quality indicators of experimental samples confirm that according to the set of indicators, the optimal sample is 10 % of Jerusalem artichoke puree, which makes it possible to recommend it for the production of yeast bakery products of high biological value.
Detection of the organic solvent vapors by the optical gas sensors based on polyaminoarenes
Authors: Aksimentyeva O. I. , Tsizh B. R. , Horbenko Yu. Yu. , Stepura A. L. 
Published: May 2021

The important problem to ensure the safety of life is the development of effective methods for monitoring of toxic gases in the atmosphere and industrial premises. To ensure such control, various gas sensors are developed that work on the effects of changes in electrical resistance, optical absorption or radiation in a certain spectral range. Most known gas sensors have high operating temperatures, which creates some difficulties in their operation, so more and more attention is paid to sensors based on conjugated electrically conductive polymers, in particular, polyaminoarenes. In result of absorption of inorganic polar gases such as ammonia, nitrogen oxide, hydrogen chloride and others the significant changes in conductivity, optical absorption and morphology of polyaminoarene films are observed. However influence of organic solvent vapors on the optical spectra of polyaminoarene films for today is poorly studied. In the present work the functional polymer films of polyanisidine (PoA) and polytoluidine (PoTI) are proposed as sensitive elements of optical sensors operating at room temperatures. The sensitive films on the transparent SnO2 surface were prepared by electrodeposition. The influence of vapors of organic solvents (dimethylformamide, tetrahydrofuran, chloroform, nitrobenzene, toluene) on the optical characteristics of PoTi and PoA films was established. The optical absorption spectra investigated PoA film was characterized by two band with maximum near 360–410 nm (π–π* transition) and broad band in the range of 620–950 nm which is a superposition of the second and third bands. Influence of organic vapors causes the changes in films coloration. The maximum of sensitivity to the organic vapors for PoTI films in all cases is observed at λ > 550 nm and extends to near-infra-red area indicating a formation of free charge carriers of polaron type. Nonpolar solvent vapors insignificantly affect the optical properties of polyaminoarene films responсes to spectral changes in the visible and NIR range of spectrum. A highest gas sensitivity of optical signal was observed under influence of dimethylformamide and tetrahydrofuran vapors. The time to establish the steady-state value of the optical response is 30–60 s for PoTi, while for PoA reaches 120–180 s depending on the nature of organic vapors.
Quality changes of Pleurotus eryngii during vacuum frying
Authors: Fang Lin , Ren Ai-qing , Bolgova N. , Samilyk M. , Sokolenko V. 
Published: May 2021

Quick and accurate determination of oil content is extremely important to control the oil content of vacuum fried fruit and vegetable chips. This article uses fresh Pleurotus eryngii as raw materials to explore the influence of different vacuum frying times (0–14 min) on the moisture distribution, oil changes and quality of Pleurotus eryngii strips. The results show that as the frying time increases, the lateral relaxation time required for the taro strips to drop from the highest point of the signal amplitude to smooth becomes shorter and shorter, and the decay rate becomes faster and faster, that is, when the frying time is 14 minutes, The attenuation curvature and velocity are the largest. The oil content and brittleness of Pleurotus eryngii strips are significantly increased (P < 0.05); the water content is significantly reduced (P < 0.05); the hardness first decreases and then increases (P < 0.05); the brightness L* value does not change much, and the color is not Significant change (P > 0.05). At the same time, low-field NMR shows that the high-degree-of-freedom water in the pleurotus eryngii strips migrates to the low-degree-of-freedom water during the vacuum frying process. Among them, the free water in the pleurotus eryngii strips has a large degree of freedom. It has been removed, resulting in poor mobility and increased inability to flow. Part of the free water migrates to the semi-bound water, and most of the semi-bound water migrates outward as free water and then is removed. From this, all peaks are gradually removed. Moving to the left, the total peak area decreases. During the frying process, the T2 relaxation time of Pleurotus eryngii strips all shifted to the left, the total peak area is continuously reduced, the water content is getting less and less, the fat content is getting higher and higher, and the fat content distributed in the edge shell is always higher than Other locations. Low-field nuclear magnetic resonance technology can provide a fast, accurate, and non-destructive method for detecting moisture and grease for the vacuum-fried fruit and vegetable chips. As the frying time increases, the inner contour of the MRI image of Pleurotus eryngii strips gradually becomes blurred, the brightness gradually decreases, the volume shrinks, the less water, and the image interior is close to the background color (blue), indicating that the sample has reached the end of drying; and The grease content is distributed in the edge shell layer higher than other positions. Therefore, the water is continuously removed, the oil signal becomes stronger and stronger, and the oil content of the sample becomes higher and higher.
DESKRIPSI HAMBATAN DAN KESULITAN GURU FISIKA SMA SE-KABUPATEN REJANG LEBONG DALAM MENERAPKAN KURIKULUM 2013
Authors: Alfandry Zikri , Medriati Rosane , Rohadi Nyoman 
Published: May 2021

ABSTRAK Penelitian ini merupakan penelitian deskriptif kualitatif metode survey yang bertujuan untuk mendeskripsikan masalah-masalah yang dialami guru fisika SMA se-kabupaten rejang lebong dalam menerapkan kurikulum 2013. Subjek penelitian ini adalah 9 guru fisika sma yang terdiri dari 3 orang masing-masing sekolah yaitu SMA 1, SMA 2 dan SMA 8 Kabupaten Rejang Lebong. Penelitian ini dilakukan dengan cara pengisian angket dan wawancara responden. Hasil penelitian ini menunjukkan bahwa hambatan yang dialami guru dalam menerapkan kurikulum 2013 pada tahap perencanaan sebesar 48%, tahap pelaksanaan sebesar 51,49% dan tahap evaluasi sebesar 55,79%. kesulitan yang dihadapi guru dalam menerapkan kurikulum 2013 pada tahap perencanaan sebesar 75,56%, tahap pelaksanaan sebesar 92,93% dan tahap evaluasi sebesar 94,14%. Berdasarkan hasil penelitian dapat disimpulkan bahwa guru mengalami kesulitan dan hambatan dalam menerapkan kurikulum 2013. Kata kunci: Kurikulum 2013, Kesulitan guru, Hambatan guru, Tahap perencanaan, Tahap pelaksanaan, dan Tahap evaluasi.ABSTRACT This research was a qualitative descriptive research survey method that aimed to describe the problems Rejang Lebong district high school physics teacher in implementing the 2013 curriculum. The subject of this research was the 9 teachers of physics, consisting of 3 individual schools, namely SMA 1, SMA 2 and SMA 8 Regency Rejang Lebong. This research was done by filling the poll and interview respondents.The result of this research showed that the teacher’s barriers to applying the 2013 curriculum at the planning stage of 48%, of the implementation stage of 51,49%, and the evaluation stage of 55,79%. The difficulties were faced by teachers in implementing the 2013 curriculum at the planning stage of 75.56%, the implementation stage of 92.93% and evaluation stage of 94.14%. Based on the results the study can be concluded that teachers have difficulties and obstacles in implementing the 2013 curriculum. Keyword: Curriculum 2013, Teacher difficulties,teacher barriers, planning stage, implementation stage, and stage evaluation
PENGEMBANGAN BAHAN AJAR TEKS PERUBAHAN KONSEPTUAL MATERI FISIKA DASAR TOPIK KINEMATIKA
Authors: Syuhendri Syuhendri , Sania Lara , Akhsan Hamdi 
Published: May 2021

Telah dilakukan pengembangan satu set bahan ajar teks perubahan konseptual berbasis teori perubahan konseptual pada kinematika yang valid dan praktis. Penelitian pengembangan bahan ajar ini menggunakan model pengembangan Rowntree yang terdiri dari tiga tahap yaitu tahap perencanaan, tahap pengembangan, dan tahap evaluasi. Pada tahap evaluasi peneliti menggunakan evaluasi formatif Tessmer berupa self evaluation, expert review, one to one evaluation, dan small group evaluation. Instrumen pengumpulan data menggunakan lembar validasi ahli dan angket. Hasil analisis data pada tahap expert review diperoleh rata-rata validasi ahli sebesar 4,13 dengan kategori valid. Pada tahap one-to-one evaluation dan small group evaluation diperoleh persentase rata-rata dari lembar angket mahasiswa sebesar 81,39% dan 81,75% dengan kategori praktis. Dengan demikian, telah berhasil dikembangkan bahan ajar teks perubahan konseptual berbasis teori perubahan konseptual pada kinematika yang valid dan praktis. Bahan ajar teks perubahan konseptual ini dapat digunakan untuk meningkatkan pemahaman konsep dan meremediasi miskonsepsi materi kinematika.
Analisis Potensi Pembangkit Listrik Tenaga Mikro Hydro Pada Anak Sungai di Bulungan
Authors: Sulaiman Dady , Romadhoni Wibowo , Purnama Purnama 
Published: May 2021

ABSTRAK Energi listrik merupakan energi utama masyarakat pada era globalisasi. Perusahaan Listrik Nasional (PLN) masih belum bisa menjangkau daerah – daerah terpencil khususnya daerah kabupaten Bulungan yang memiliki banyak daerah terpencil. Masalah ini dapat diatasi dengan memanfaatkan anak sungai yang ada di kabupaten Bulungan sebagai sumber energi listrik. Penelitian ini dimulai dengan survey memilih 20 titik anak sungai yang akan diteliti di kabupaten Bulungan. Selanjutnya pengambilan data yaitu luas penampang sungai, kecepatan aliran sungai, dan tinggi jatuh air. Data ini akan dianalisis dengan menggunakan rumus agar memperoleh nilai daya teoritis yang dihasilkan oleh masing – masing sungai yang telah ditentukan. Hasil penelitian inimenunjukkan diantara 20 anak sungai yang diteliti hanya 2 anak sungai yang memiliki potensi yaitu sungai 9 dengan daya 5,5 kW dan sungai 14 dengan daya 8,5 kW. Hasil penelitian ini dapat dikembangkan lagi agar dapat bermanfaat bagi pengembangan daerah – daerah terpencil yang tidak terjangkau PLN. Kata kunci : Daya, Energi Terbarukan, PLTMH ABSTRACT Electrical energy is the main energy of society in the era of globalization. Perusahaan Listrik Nasional (PLN) is still unable to reach remote areas, especially the Bulungan district which has many remote areas. This problem can be overcome by utilizing tributaries in Bulungan district as a source of electrical energy. This research began with a survey selecting 20 tributary points to be studied in Bulungan district. Furthermore, data collection was the cross-sectional area of the river, river flow velocity, and water fall height. This data was analyzed using a formula in order to obtain the theoretical power value generated by each predetermined river. The results of this study indicatde that among the 20 tributaries studied, only 2 tributaries have potential, namely river 9 with a power of 5.5 kW and river 14 with a power of 8.5 kW. It is hoped that the results of this research can be further developed so that they can be useful for the development of remote areas that are not reached by PLN. Keyword: PLTMH, Power, Renewable Energy
PEMBELAJARAN BERBASIS LABORATORIUM VIRTUAL MELALUI GOOGLE CLASSROOM PADA MATERI HUKUM OHM UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS
Authors: Ocvianti Marini Amalia , Sulisworo Dwi 
Published: May 2021

ABSTRAK Learning Management System (LMS) merupakan sebuah aplikasi online yang dapat membantu merencanakan dan mengimplementasikan pembelajaran. Google Classroom adalah bentuk LMS yang mudah digunakan oleh pendidik maupun poeserta didik dalam proses pembelajaran yang kreatif dan inovatif. Inovasi pembelajaran pada masa pandemi Covid-19 menggunakan Google Classroom diharapkan akan menumbuhkan kemampuan prendidik untuk berpikir kritis. Telah dilakukan penelitian penggunaan Google Classroom pada pembelajaran berbasis laboratorium virtual pada materi Hukum Ohm kepada peserta didik Kelas XII di SMA Muhammadiyah 1 Yogyakarta. Menggunakan model pembelajaran discovery learning dengan pendekatan saintifik, maka dirancang metode pembelajaran diskusi dan eksperimen melaui tatap maya dengan Gmeet dan penugasan kelompok. Setelah dilaksanakan pembelajaran tersebutpeserta didik diminta untuk mengisi angket. Hasil yang diperoleh dari angket tersebut menunjukkan bahwa sebagian besar peserta didik menyetujui proses pembelajaran, penggunaan media, manfaat media, dan kefleksibelan proses pembelajaran menggunakan Google Classroom.Dari hasil ini maka selanjutnya penggunaan Google Classroom dalam pembelajaran bisa dilaksanakan untuk menumbuhkan cara berpikir kritis dalam pembelajaran dikombinasikan dengan pembelajaran secara tatap muka yang dikenal dengan sebutan blended learning. Oleh karena itu, penyesuaian model pembelajaran perlu dilakukan untuk terlaksananya blended learning. Kata Kunci: Berpikir Kritis, Google Classroom, Laboratorium Virtual, LMS. ABSTRACT Learning Management System (LMS) is an online application that can help plan and emplement learning. Google Classroom is a form of LMS that is easy to use by educators and students in a creative and innovative learning process. Learning innovation during the Covid-19 pandemic using Google Classroom is expected to foster the ability of educators to think critically. Research on the use of Google Classroom in virtual laboratory-based learning on Ohm’s Law has been carried out for 3rd grade students at SMA Muhammadiyah 1 Yogyakarta. Using the discovery learning model with a scientific approach, a discussion and experiment learning method through virtual face to face with Gmeet and group assignment was designed. After the learning was carried out, students were asked to fill out a questionnaire. The results obtained from the questionnaire showed thad most of students agreed to the learning process, the use and benefits of the media, and the flexibility of the learning process. From this resuts, the use of Google Classroom in learning can be continue to be implemented to foster critical thinking in learning combined with offline learning kwown as blended learning. Therefore, adjustment to the learning model need to be made for the implementation of blended learning. Keywords:Critical Thinking,Google Classroom, LMS, Virtual Laboratory.
Studi Lingkungan Desa Pentingsari Kabupaten Sleman Sebagai Sumber Pembelajaran IPS SD
Authors: Ningrum Savira , Suryawati Ikhlas , Setia Setia , Ilmi Lia Aliatul 
Published: May 2021

Abstrak : Studi Lingkungan ini bertujuan untuk menggali, mengkaji, dan mendeskripsikan pengetahuan sosial yang ada pada suatu daerah yang dapat dijadikan suatu sumber pembelajaran IPS yang menarik kepada peserta didik. Studi lingkungan ini menggunakan pendekatan kualitatif. Studi lingkungan ini dilakukan diÂ Desa Wisata yaitu Desa Pentingsari Sleman Yogyakarta, dengan subjek Masyarakat Setempat dan Kondisi sosialnya. Dalam studi lingkungan ini kami mengumpulkan data melalui Wawancara, Observasi, dan Dokumentasi. Hasil studi lingkungan ini menunjukan bahwasannya kebudayaan-kebudayaan dan kebiasaan sosial masyarakat dapat dijadikan sumber pembelajaran IPS yakni dari segi : (1) Sejarah desa pentingsari, (2) Kondisi Geografis desa pentingsari, (3) Kondisi Demografi desa pentingsari.Abstract : This studyÂ environmental study aims to multiply, examine and describe the social knowledge that exists in an area that can be used as an interesting source of IPS learning to students. this environmental study uses a qualitative approach. this environmental study was conducted in pentingsari tourist village sleman yogjakarta with the subject of local people and their social conditions. In this environmental study we collected data through interviews, observation and documentation. The results of this environmental study show that the culture and social habits of the community can be used as sources of learning,terms of : (1) village history pentingsar, (2) Geographical conditions of the village pentingsari , (3) village demograpihic conditions pentingsari.Â Kata Kunci. Studi Lingkungan, Ilmu Pengetahuan Sosial, Desa PentingsariÂ Â
PEMERTAHANAN DAN PERGESERAN BAHASA DAERAH PADA MASYARAKAT DESA PENTINGSARI-YOGYAKARTA
Authors: Hartanti Ade Eka Julia , Lisviyana Lena , Yanti Ulfi , Krisdayanti Dina Ayu 
Published: May 2021

Abstrak. Indonesia sebagai bangsa yang beranekaragam mulai dari suku, ras, agama, bahasa dan adat istiadat. Karena dari hal tersebutlah muncul kebudayaan-kebudayaan yang diciptakan oleh masyarakat indonesia itu sendiri, bahasa memiliki jalinan yang sangat erat dengan budaya sehingga keduanya tidak dapat dipisahkan, karena begitu eratnya jalinan antara bahasa dan budaya. Tanpa bahasa, budaya kita pun akan mati. Hal ini bisa terjadi karena, sebagaimana dikatakan oleh Purwo (2000:3) bahasa adalah penyangga budaya, sebagian besar budaya terkandung di dalam bahasa dan diekspresikan melalui bahasa, bukan melalui cara lain. Ketika kita berbicara tentang bahasa, sebagian besar yang kita bicarakan adalah budaya. Ketika seseorang menggunakan bahasa untuk berkomunikasi dengan orang sekelilingnya, dan kemungkinan orang lain yang berbeda bahasa juga. Ada dua kemungkinan yang terjadi yaitu yang apakah seseorang itu mempertahankan bahasanya atau bahasa yang digunakannya mulai bergeser dengan bahasa lain.Â Banyak sekali faktor penyebab pergeseran dan pemertahanan bahasa.Kata Kunci : Pemertahanan, Pergeseran Bahasa Daerah Masyarakat Pentingsari Abstract. Indonesia as a diverse nation ranging from ethnicity, race, religion, language and customs. Because of the emergence of cultures created by Indonesian society itself, language has a very close relationship with culture so that they cannot be separated, because so closely the relationship between language and culture. Without language, our culture will die. This can happen because, as Purwo (2000: 3) says, language is a support for culture, most cultures are contained in language and expressed through language, not through other means. When we talk about language, most of what we talk about is culture. When someone uses language to communicate with people around him, and possibly other people with different languages too. There are two possibilities that occur, which is whether someone maintains his language or the language he uses begins to shift with other languages. There are many factors that cause shifting and language retention.Keywords: Defense, Shifting Regional Languages of the Pentingsari Society