bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of preoxidation on copper flotation from copper-lead mixed concentrate
Authors: Zeng Peng , Xie Haiyun , Jin Yanling , Zhang Pei , Chen Jialing , Liu Dianwen
Published: April 2023

Flotation separation of galena and chalcopyrite is always a difficult problem in mineral processing. In this paper, the selective preoxidation of galena and chalcopyrite with sulfuric acid was developed, and then the two minerals were completely separated by flotation. The surface oxidation mechanism of galena and chalcopyrite with sulfuric acid was analyzed by Fourier transform infrared spectroscopy (FT-IR) and Atomic Force Microscopy (AFM), and the results showed that hydrophilic oxide film was formed on the galena surface, while the surface of chalcopyrite is still hydrophobic sulfide film, which led to the separation of the two minerals by flotation. In addition, the Response Surface Methodology (RSM) was used to analyze the influence of main preoxidation parameters on the flotation separation of copper-lead concentrate, and the parameters were further optimized, as follows: sulfuric acid concentration of 5.3 mol/L, oxidation temperature of 101.8 °C and time of 48.3 min. The mixed concentrate containing Cu 11.57% and Pb 16.75% was preoxidized under the above conditions, and the flotation separation verification results showed that Cu concentrate with Cu grade of 18.09% and recovery of 95.41%, and Pb concentrate with Pb grade of 44.96% and recovery of 95.94% was obtained respectively. This paper provides a new method of preoxidation combined flotation to achieve high-efficiency separation of copper-lead mixed concentrate.
Penyelesaian Kasus Sengketa Wakaf (Analisis Undang-Undang Nomor 41 Tahun 2004 Tentang Wakaf)
Authors: Izhar  , Harahap Mhd. Yadi
Published: April 2023

Penyelesaian Kasus Sengketa Wakaf di Indonesia dalam analisis UU Nomor 41 Tahun 2014. Dalam penelitian dimuat beberapa latar belakang berkaitan langkah-langkah praktis dalam menyelesaikan perkara tersebut antara lain, dapat diselesaikan di luar pengadilan (ADR) dan melalui hukum Positif yang berlaku di Indonesia yaitu UU Nomor 14 tahun 2014 tentang wakaf. Tentu, dengan tujuan agar setiap problematika kehidupan dapat diatasi agar tujuan kehidupan manusia dapat berjalan dengan jalan perdamaian. Penyelesaian sengketa melalui luar pengadilan (ADR), dapat ditempuh melalui non-ligitasi dengan konsep perdamaian atau dalam Islam dengan konsep sulh sedangkan dalam hukum positif dapat ditempuh dengan pidana. Sebab, instrumen wakaf sesungguh sangat berkaitan erat dengan kesejahteraan umat manusia dan juga agar yang berwakaf terus mendapat balasan (ganjaran) hingga akhir waktu sampai diakhirat

Settlement of Waqf Dispute Cases in Indonesia in the analysis of law number 41 of 2014. The reaserch contains some background related to practical steps in resolving these cases, among others, can be resolved out of court (ADR) and thought poditive law that applies in Indonesia, namely Law Number 14 of 2014 concercing waqf. Of course, with the aim that every problem of life can be overcome so that the purpose human life can be carried out in a way of peace. Dispute settlement thought of out court (ADR), can be reached throught non-litigation with the concept of peace or in Islam with the concept of shole while in positive law it can be pursued with a criminal. This is because the waqf instrument is actually very closely related to the welfare of mankind and also so that the waqf continues to receive rewerds until the end of time until the hereafter.
Diraasatu Manhaji Ta’liimi Al-Lughati Al-‘Arabiyah Bi Ma’hadi Muhammad Al-Faatih Matesih Wa Tathwiiruhu ‘Ala Asaasi Ta’siisi Al-Biiati Al-Lughawiyah
Authors: Mas’ud Ibnu , Qosim Muhammad Nanang , Hidayat Fajar
Published: April 2023

هدف هذا البحث إلى وصف منهج التعليم بمعهد محمد الفاتح بماتسيح ومركز تحفيظ القرآن واللغة العربية وإلى معرفة كيفية تطوير منهج التعليم بمعهد محمد الفاتح بماتسيح على أساس تأسيس البيئة اللغوية بجعل مركز تحفيظ القرآن واللغة العربية نموذجا. منهج البحث المستخدم في هذا البحث هو المنهج الوصفي. وفي كتابة هذا البحث يقوم الباحث بتحليل المحتوى وأسلوب جمع البيانات المستخدم هو الملاحظة والمقابلة. توصل الباحث إلى النتيجتين؛ الأولى وصف منهج التعليم المستخدم بمعهد محمد الفاتح بماتسيح الذي يتكون من أربع عناصر. والثانية طريقة تطوير منهج تعليم اللغة العربية بمعهد محمد الفاتح بماتسيح وهذا الأمر راجع إلى تأسيس البيئة اللغوية كما طبقه مركز تحفيظ القرآن واللغة العربية

This research aims to describe the curriculum applied in the Makhad Muhammad Al-Fatih And Markaz tahfidz dan Bahasa Arab (MQBA), And knowing how to develop the curriculum applied at the Muhammad Al-Fateh on the basis of the linguistic environment by making MQBA a model. The research method used in this research is the descriptive method. In writing this research, the researcher used the method of content analysis, The method of collecting data in this research is by interview and observation. The researcher reached two conclusions; The first is a description of the Arabic language teaching curriculum applied at the Muhammad Al-Fateh and The MQBA. This description includes four elements of the curriculum. The second is the method of developing the Arabic language teaching curriculum at the Muhammad Al-Fateh. This was done by establishing the linguistic environment, following the example of the works presented by the professors at the MQBA

Penelitian ini bertujuan untuk mendeskripsikan kurikulum yang diterapkan di Makhad Muhammad Al-Fatih Dan Markaz tahfidz dan Bahasa Arab (MQBA), serta mengetahui bagaimana mengembangkan kurikulum yang diterapkan di Muhammad Al-Fateh berdasarkan lingkungan linguistik dengan menjadikan MQBA sebagai model. Metode penelitian yang digunakan dalam penelitian ini adalah metode deskriptif. Dalam penulisan penelitian ini, peneliti menggunakan metode analisis isi. Metode pengumpulan data dalam penelitian ini adalah dengan wawancara dan observasi. Peneliti mencapai dua kesimpulan; Yang pertama adalah gambaran tentang kurikulum pengajaran bahasa Arab yang diterapkan di Muhammad Al-Fateh dan The MQBA. Deskripsi ini mencakup empat unsur kurikulum. Kedua, metode pengembangan kurikulum pengajaran bahasa Arab di Muhammad Al-Fateh. Hal itu dilakukan dengan membangun lingkungan linguistik, mengikuti contoh karya-karya yang dihadirkan para profesor di MQBA
Peran Masyarakat dalam Pendidikan Islam NonFormal di Desa Jatimulya Kecamatan Suradadi Kabupaten Tegal
Authors: Syefudin Akhmad , Rohmadi Yusup
Published: April 2023

Pendidikan Isalm pada era sekarang dihadapkan dengan berbagai tantangan yang menyelimuti kehidupan manusia pada zaman modern. Oleh karena itu pendidikan Islam harus ditujukan pada kebutuhan perubahan masyarakat yang modern. Masyarakat dan lembaga pendidikan harus saling membantu dan berpastisipasi. Hubungan masyarakat dan lembaga pendidikan terjadi di daerah Sigerung desa Jatimulya. Di desa Jatimulya mengalami perkembangan pendidikan Islam yang begitu bagus, baik itu dari sarana dan prasarananya. Tujuan penelitian ini untuk mengetahui peran masyarakat dalam pendidikan Islam nonformal dan mengetahui hambatan dan solusi peran masyarakat dalam pendidikan islam non formal. Metode penelitian yang diguanakan dalam penelitian ini yaitu penelitian kualitatif lapangan. Hasil penelitian menunjukkan bahwa peran masyarakat dalam pendidikan Islam nonformal meliputi: Masyarakat Sebagai Pengguna Jasa, Masyarakat Sebagai Donatur, Masyarakat sebagai penerima kebijakan, Masyarakat memberi masukan dan berkonsultasi, Masyarakat sebagai sumber pelayanan, Masyarakat sebagai pelaksanaan kegiatan. Sedangkan hambatannya yaitu Masyarakat masih ada yang tidak mengikuti kegiatan-kegiatan keagamaan. Solusi yang diberikan oleh masyarakat yaitu m mengajak dan memotivasi masyarakat yang belum aktif dalam  kegiatan keagamaan, Lembaga pendidikan meringankan biaya pendidikan dan berusaha melengkapi sarana dan prasarana untuk kegiatan pendidikan.

Islamic education in the current era is faced with various challenges that surround human life in modern times. Therefore Islamic education must be addressed to the changing needs of modern society. Communities and educational institutions must help each other and participate. Public relations and educational institutions took place in the Sigerung area of ​​Jatimulya village. In Jatimulya village, there has been a very good development of Islamic education, both in terms of facilities and infrastructure. The purpose of this study was to determine the role of the community in non-formal Islamic education and to find out the obstacles and solutions for the role of the community in non-formal Islamic education. The research method used in this research is field qualitative research. The results of the study show that the role of the community in non-formal Islamic education includes: the community as service users, the community as donors, the community as recipients of policies, the community providing input and consulting, the community as a source of services, the community as implementing activities. While the obstacle is that there are still people who do not participate in religious activities. The solution provided by the community is to invite and motivate people who are not yet active in religious activities, educational institutions reduce the cost of education and try to complete facilities and infrastructure for educational activities.
Konsep dan Implementasi Kaidah Fiqhiyah Tentang Syirkah (Studi di Koperasi Syariah Baitul Mu’min Ujung-Berung Bandung)
Authors: Mursyidah Zein Ai Imas , Januri Fauzan
Published: April 2023

Kaidah merupakan hukum yang bertabiat universal (kulli) yang mencakup segala bagian- bagiannya(juz`i) dimana hukum yang juz`i itu menjadi bagian dari hukum yang universal ataupun kulli. Ranah kajian mangulas kaidah yang terpaut dengan kaidah fiqhiyah furu’ yang tercantum kedalam dawâbith fiqhiyyah ataupun kaidah fiqih spesial yang mangulas satu bab saja ialah terpaut muamalah ataupun tepatnya berkenaan dengan perkara syirkah. Sejatinya ketetapan hukum syirkah merupakan akad yang diperbolehkan syariat. Namun, ada beberapa ketentuan mekanisme akad syirkah ini berbeda-beda ada syrkah yang dianggap tidak diperbolehkan atau batal ada juga syirkah yang ditetapkan kebolehannya oleh syariat Islam. Salah satu syirkah yang diperbolehkan adalah mudharabah. Salah satu lembaga keuangan syariah yang mempraktikannya adalah Koperasi Syariah Baitul Mu’min Ujung Berung. Ketetapan syirkah mudharabah ini telah ditetapkan sebagai salah satu syirkah yang diperbolehkan syariat Islam.

The rule is a universal law (kulli) which includes all its parts (juz`i) where the juz`i law becomes part of a universal law or kulli. The area of study dealing with principles related to the rules of fiqhiyah furu' included in the dawâbith fiqhiyyah or special fiqh rules that cover only one chapter is related to muamalah or to be precise with regard to syirkah matters. In fact, the stipulations of syirkah law are contracts that are permitted by shari'a. However, there are several provisions on the mechanism of this syirkah contract, which vary, there are syirkah which are considered prohibited or canceled, and there are also syirkah whose permissibility is determined by Islamic law. One of the permissible syirkah is mudharabah. One of the Islamic financial institutions that practice this is the Baitul Mu'min Ujung Berung Sharia Cooperative. This syirkah mudharabah provision has been determined as one of the syirkahs permitted by Islamic law.
Moderasi Beragama Guru Pendidikan Agama Islam terhadap Negara dan Pemerintahan
Authors: Zulfadli  , Rahmat Munawar , Kosasih Aceng
Published: April 2023

Guru Pendidikan Agama Islam adalah golongan yang paling rentan disusupi sikap intoleransi. Untuk mencegah hal itu nilai moderasi beragama perlu diinternalisasikan pada diri seorang guru. Berkaitan dengan hal tersebut, penelitian ini bertujuan mengetahui moderasi beragama guru Pendidikan Agama Islam (PAI) SMA Kota Pekanbaru terhadap negara dan pemerintahan. Metode penelitian deskriptif kuantitatif, dan teknik pengumpulan data kuesioner. Populasi penelitian guru-guru PAI SMA di Kota Pekanbaru, sementara sampelnya 78 orang. Penelitian dilakukan bulan November 2022. Hasil penelitian sebagian besar responden cenderung  moderat. Ini dapat dibuktikan dengan mayoritas guru PAI SMA Kota Pekanbaru sudah memahami moderasi beragama terhadap negara dan pemerintahan, hal ini dibuktikan dengan mayoritas guru PAI kota Pekanbaru taat kepada pemimpin yang sah meski bukan pilihannya, memiliki sikap cinta tanah air, bersedia untuk ikut serta dalam pesta demokrasi, mengakui ideologi negara Indonesia adalah Pancasila, tidak adanya jurang pemisah antara agama dan pemerintahan. Di sisi lain guru PAI SMA Kota Pekanbaru menolak untuk memilih pemimpin kredibel, karena pemimpin tersebut tidak seagama dengannya. Lebih parahnya lagi guru PAI lebih menerima pemimpin yang seagama dengannya, meski pemimpin tersebut tidak mampu untuk menjadi seorang pemimpin. Tampaknya responden kurang memahami konsep negara dan pemerintahan serta kriteria memilih pemimpin dali referensi yang kredibel

Islamic Religious Education teachers are the group most vulnerable to being infiltrated by intolerance. To prevent this, the value of religious moderation needs to be internalized in a teacher. In this regard, this study aims to determine the religious moderation of Islamic Religious Education (PAI) teachers in Pekanbaru City High School towards the state and government. Quantitative descriptive research method, and questionnaire data collection techniques. The study population was high school PAI teachers in Pekanbaru City, while the sample was 78 people. The research was conducted in November 2022. The results of the research for the majority of respondents tended to be moderate. This can be proven by the fact that the majority of Pekanbaru City High School PAI teachers understand religious moderation towards the state and government. Admitting that the ideology of the Indonesian state is Pancasila, there is no gap between religion and government. On the other hand, the Pekanbaru City High School PAI teacher refused to choose a credible leader, because the leader did not share the same religion as him. Even worse, PAI teachers accept leaders who share the same religion as them, even though these leaders are unable to become leaders. It seems that respondents do not understand the concept of state and government as well as the criteria for selecting leaders from credible references
Efektivitas Dan Efisiensi Pembiayaan Pendidikan Pasca Covid-19
Authors: Hidayat Rizal , Alam Mufthi , Halim Achmad Syarief , Agustian Sukri
Published: April 2023

During the Covid-19 transition period, there were many transitions that had to be made again, one of which was regarding education financing which is a crucial matter within the scope of developing educational institutions/schools. It is undeniable that from the existing reality there are always problems and obstacles regarding financing education during and after Covid 19, causing educational institutions to prioritize budgets to facilitate the running of the educational environment, especially during the Covid period there were still schools that were not maximal in financing as a result learning uncertainty. This study aims to determine the effectiveness and efficiency of educational financing carried out during the post-covid-19 period so that educational institutions can allocate educational funds as best as possible without burdening students and parents. The method used is the method of literature study. With a philosophical inquiry approach. The results of the research show that, in order to achieve good financing, schools need to understand financial management by looking at the effectiveness and efficiency that is carried out. That way schools don't need to squander a lot of the budget they do. Educational institutions must really understand the effectiveness of financing, by understanding education financing both macro (national) and micro (school) arrangements, as well as several types of educational costs such as direct costs, indirect costs, personal costs. (private costs) social costs (social costs), costs in the form of money (monetary costs) and costs that are not in the form of money (non-monetary costs). The results of managing education costs so that they become effective and efficient management can be seen from internal efficiency which must produce the desired output at maximum cost and external efficiency. This can be seen from the ratio between financial benefits as a result of Education with all costs incurred for the education process.
Diskriminasi Mitologi Penderita Epilepsi Menurut Kajian Pendidikan Agama Hindu
Authors: Oka Widana Anak Agung Gde
Published: April 2023

The purpose of this study is to awaken and straighten out personal perceptions of the existence of people with epilepsy so that mythological discrimination against people with epilepsy can be minimized and eliminated. Three issues are raised in this study: forms of mythological discrimination of epilepsy sufferers, causes of the emergence of mythological discrimination of epilepsy sufferers according to Hindu religious teachings, and solutions in overcoming the phenomenon of mythological discrimination of epilepsy sufferers according to Hindu teachings. As a type of qualitative research, the data obtained in this study were collected using library techniques and document recording. Analysis of the data that has been collected was carried out using a qualitative descriptive technique. The results of the analysis show that the forms of mythological discrimination received by epilepsy sufferers in the Tri Education Center are restrictions, shunned, ostracized, humiliated, humiliated, and even imprisoned. The causes of the emergence of mythological discrimination of people with epilepsy are due to the low quality of education (formal, informal, non-formal), the low implementation of human values, the degradation of morality, and the low implementation of the teachings of Catur Marga Yoga. Solutions that can be taken to overcome the phenomenon of mythological discrimination of epilepsy sufferers according to Hindu religious teachings include improving the quality of tattwa (philosophical) education, increasing moral quality, integrating human values ​​that are integrated in the concept of Pawongan with tat tvam asi, and the last is realizing the implementation of the teachings of catur marga yoga (bhakti marga yoga, jnana marga yoga, karma marga yoga and raja marga yoga).
Optimization Process of an Innovative Rehabilitation Device based on Pre-Clinical Results
Authors: Bernardes R. , Parola V. , Cardoso R. , Neves H. , Cruz A. , Xavier W. , Durães R. , Malça C.
Published: April 2023

Commercially available technical solutions used in physical rehabilitation processes have not responded effectively to the crucial needs of customized rehabilitation programs. As such, a partnership between a nursing school, technological enterprises – ORTHOS XXI and WISEWARE - and engineering institutes was established to implement a project entitled ABLEFIT to overcome the identified lack of technical solutions in the market. ABLEFIT has the main purpose of making available a rehabilitation device in the market that ensures the implementation of physical rehabilitation programs in a controlled and interactive way so that patients can regain their physical, psychological, and social functions as soon as possible. The loss of these capabilities is closely related to Prolonged Immobility Syndrome (PIS), being the morbidity and mortality associated with the complications resulting from prolonged inactivity or even a sedentary lifestyle seen both in the elderly population and in adults and young people with some type of restriction of mobility or disability. This paper describes the optimization process of the ABLEFIT device based on the pre-clinical trials performed. The optimization process starts with the design of an initial prototype, followed by the construction of a second prototype, and finally the planning of an additional iteration, which will involve the construction of a third prototype that will look identical to the version that will be available in the market. The two iterations of the ABLEFIT prototype device developed up to now provide undeniably an advanced solution to support physical rehabilitation, since they combine a biomechanical system to aid physical exercise, in passive and active modes, in bed and a wheelchair, with a control system for monitoring and storing biofeedback variables and motivational stimulus through interaction with gamification. The ABLEFIT device significantly contributes to the reduction of morbidity and mortality associated with complications resulting from prolonged inactivity.
Principal Directions for Prevention of Emergency Fire Situations in Forests
Authors:   All-Russian Research Institute for Civil Defense and Emergency Situations of the Ministry of Emergency Situations of Russia (Federal Center for Science and High Technologies), Podrezov Yury V.
Published: April 2023

The study investigates the central current issues in extreme forest fire extinction from organizational and technological perspectives. An analysis of the problems in the field of forest pyrology is established on the principles of systematic approach, methods of logical analysis and synthesis of ongoing processes. It indicates the need to develop modern mechanisms against forest fires of various types, which are often the origins of emergency forest fires of various scales. It has been determined that the scientifically substantiated ways of arrangement and implementation of measures for fire prevention and elimination should be supported by an adequate functioning system for scientifically based management decisions. Such a system should be grounded on the processes of the integrated fire monitoring and predicting of the forest fire situation, supervising and estimating the dynamics as well as consequences of the forest fires, their sources of various types and emergency scenarios with gradated threat scales. There are multiple fire extinguishing techniques with various productivity, environmental friendliness, cost efficiency, speed response that have been practically proven over a long period of time. Although the elevation of the results, according to the parameters of the reduced number of burns and the forest areas covered by fire, shows the need for improvement, as well as the generation and realization of the new modern methods against burns on wooded areas especially with the damaging factors. It is recommended to reduce the fire hazard class caused by weather conditions by using an environmentally compatible and efficient electrophysical principals. Such response procedures have gone through an extensive practical examination in different geographical conditions of the Russian Federation and in several foreign countries. It should be mentioned that this approach has a great potential for prevention and termination of large forest fires, reducing the damaging factors coming from the sources of emergency fire situations. For citation: Podrezov Yu.V. Principal Directions for Prevention of Emergency Fire Situations in Forests. Lesnoy Zhurnal = Russian Forestry Journal, 2023, no. 2, pp. 172–182. (In Russ.). https://doi.org/10.37482/0536-1036-2023-2-172-182
Radial Growth of Spruce (Picea abies (L.) Karst. × P. obovata Ledeb.) in the Conditions of Mining Impact
Authors:   Northern (Arctic) Federal University named after M.V. Lomonosov, Barzut Oksana S. , Surso Mikhail V. ,   N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences
Published: April 2023

A dynamic of radial growth of spruce near a quarry of kimberlite pipes is investigated in this study. The quarry is considered as a potential source of anthropogenic impact. The research takes place at the central part of the White Sea Kuloi plateau, at the diamond deposit named after M.V. Lomonosov. The wood cores for dendrochronological analysis are from six trail plots located at different distances from the active quarry. The annual radial increment of spruce in all plots ranges from medium to high or very high. It is noticed that spruce trees have different durations of depression and expression cycles. The growth rates of the trees from the same plot do not coincide, or they show similarities to certain periods of tree’s life with cyclical patterns. In most cases, minimum and maximum extremes are observed near the well-known values of solar activity cycles. An inverse relationship is found between duration and repetition of the cycles. The measurements from all trail plots show a decrease in the amplitude of radial growth, which started in 2000. It took much greater extent in the period from 2010 to 2019. The samples of the spruce, which were taken from the oligotrophic habitats located near the quarry, indicate an increase of width of annual rings in the last 10–20 years. Fifty percent of them reveal a distinct radial extent. The trees from the most distant trail area are characterized by high simultaneity in the dynamics of the annual layers. Moreover, it is found a decrease in the maximum value of radial growth relative to the entire series of observations. Likewise, a reduce in the amplitude of increments is noted as a rise in the repeatability of relative growth indices below the regular values. It can be assumed that the change in the trend of radial growth in spruce in the oligotrophic habitats is mostly associated with the formation of а depression cone and, as a result, a general lowering of the groundwater level. For citation: Barzut O.S., Surso M.V. Radial Growth of Spruce (Picea abies (L.) Karst. × P. obovata Ledeb.) in the Conditions of Mining Impact. Lesnoy Zhurnal = Russian Forestry Journal, 2023, no. 2, pp. 58–72. (In Russ.). https://doi.org/10.37482/0536-1036-2023-2-58-72
Integrated Application of Biostimulants in Cultivation of Siberian Spruce Seedlings (Picea obovata L.)
Authors:   Branch of All-Russian Research Institute for Silviculture and Mechanization of Forestry “Center of the Forest Pyrology”, Ageev Aleksandr A. ,   Reshetnev Siberian State University of Science and Technology, prosp. im. gazety “Krasnoyarskiy rabochiy”, Saltsevich Yuliya V. , Buryak Ludmila V.
Published: April 2023

The article presents the results of a 5-year experiment on the cultivation of Siberian spruce seedlings combined with integrated use of biostimulants. Additionally, it describes an experience in application of the acquired planting material to artificial reforestation. The analysis of scientific publications was used for type selection of the chemical substances. The treatment for the seeds and the seedlings of Siberian spruce and the concentration of the growth promoters were chosen according to the “State Catalog of Pesticides and Agrochemicals Permitted for Use on the Territory of the Russian Federation”. For this purpose, the recommendations from manufacturers were also taken into concern. It is revealed that Ferovit (0.1 %) and Cytovite (0.01 %) are effective as pre-sowing treatment of the Siberian spruce seeds. Epin-Extra and Heteroauxin with concentrations of 0.002 % give a positive effect on the root development of the seedlings. The experiments showed that a certain sequential use of biostimulants at different stages of the seedling’s cultivation contributes to more intensive biochemical processes inside the plants (an increase in chlorophyll a, b, and carotenoids) with a positive correlation between height and phytomas in aerial parts. The combinations of the biostimulants, such as Ferovit–Heteroauxin and Cytovite–Epin-Extra–Heteroauxin, have improved the plant material within three years. The seedlings satisfied the requirements for the trunk’s height and diameter. They also demonstrated higher quality parameters, such as the proportion between aerial part and root system of the plants, as well as woodiness of the trunks. At the end of the nursery period, the planting material of Siberian spruce, cultivated according to the developed technology with all the requirements and regulations, was used to create a trial plot of forest. The reforestation of the Siberian spruce seedlings was made based on the standard recommendations and technical characteristics for the forestry equipment. The inventory inspection at the end of the first year demonstrated 98.7 % capacity for survival of the experimental trees. For citation: Ageev A.A., Saltsevich Yu.V., Buryak L.V. Integrated Application of Biostimulants in Cultivation of Siberian Spruce Seedlings (Picea obovata L). Lesnoy Zhurnal = Russian Forestry Journal, 2023, no. 2, pp. 73–87. (In Russ.). https://doi.org/10.37482/0536-1036-2023-2-73-87
Substantiation of Technological Processes and Machinery Systems for Logging Operations
Authors:   Pacific National University, Ryabukhin Pavel B. , Kunitskaya Olga A. ,   Arctic State Agrotechnological University, Grigoreva Olga I. ,   Saint Petersburg State Forest Engineering University named after S.M. Kirov
Published: April 2023

The work analyses the forest raw material resources of the Far Eastern Federal District. Corresponding to the conclusions, it is made an evaluation of a promising technology and systems of machinery for logging. It shows the significance of logging development for the rational exploitation of forest resources and the economic progress of the Far Eastern Federal District. It is performed an analysis of different technological procedures for timber harvesting. The study gives a mathematical model for the evaluation of forestry companies by economic efficiency, regarding the resolution “The Strategy for the Development of the Forest Complex of the Russian Federation Until 2030”. The examination of the region’s forest resources reveals that, currently, in coniferous forests, up to 60 % of industrial wood is available from the total volume of timber for harvesting. However, the sawlog of 1–2 classes contains only 30–35 % of this volume. Within the framework of the research conducted in the developed cutting areas are established territorial-technological plots, in which logging residues are produced and collected. In these plots, the types and the volumes of the abandoned wood are determined. It is estimated that approximately 40–50 % of the annual volume of the timber released for logging is left as a trunk lowvalue timber and forest residues at cutting areas and loading points. The article gives a proposal fоr the automation systems and technologies for harvesting in mixed stands with low-valued wood class, which allow to increase the degree of usable wood, reduce risks from littering and provide in the future various regional forestry companies with row materials. The represented mathematical model on determination of economic efficiency and cost-effectiveness of technological process allows to make rational decisions on the implementation of bucking program of forestry company. For citation: Ryabukhin P.B., Kunitskaya O.A., Grigoreva O.I. Substantiation of Technological Processes and Machinery Systems for Logging Operations. Lesnoy Zhurnal = Russian Forestry Journal, 2023, no. 2, pp. 88–105. (In Russ.). https://doi.org/10.37482/0536-1036-2023-2-88-105
The Role of Internet Communication in Consolidation of the Russian-Speaking Community in Brazil
Authors:   Institute for Demographic Research of the Federal Research Sociological Center of the Russian Academy of Sciences, Ryazantsev Sergey V. , Pismennaya Elena E. ,   Institute for Demographic Research of the Federal Research Sociological Center of the Russian Academy of Sciences, Pletneva Yulia E. ,   Federal Research Sociological Center of the Russian Academy of Sciences
Published: April 2023

The Internet is becoming one of the main platforms for communication, as well as an important source of information for people. It has a special role for migrants, since Internet communication can cover large geographical distances. The purpose of this study was to identify the features of the internet communication of the Russian-speaking youth abroad using the example of Brazil. Particular attention is paid to identifying the most popular Internet sites and the most relevant discussion questions. The results of an anonymous survey of Russian-speaking youth in Brazil act as the empirical basis of the study. The study showed that Internet communication plays an important role in strengthening communication within the Russian-speaking community and preserving common cultural values. Interestingly, there is a significant difference in how internet communication is perceived by those born in Brazil, and those who were born in Russia (USSR) and are a migrant in the first generation. The Internet acts here as a unique platform allowing these two groups of compatriots to interact and communicate. On the one hand, there is an exchange of experience and useful information about the host country, which can significantly facilitate adaptation for newly arrived migrants. On the other hand, they, in turn, give the “Russian Brazilians” an opportunity to get information about Russia, stimulate the interest in Russian language and culture. According to the results of the study, the compatriots who were born in Brazil were more interested in maintaining ties with their historical homeland.
A review on emerging micro and nanoplastic pollutants, heavy metals and their remediation techniques
Authors: Mandal Gargi , Mishra Sumit
Published: April 2023

Plastics have become one of the most concerning pollutants today. They are non-biodegradable and potentially carcinogenic and lead to the generation of microplastics categorised as an emerging pollutant. Microplastics are plastic particles smaller than 5 microns in size. They are reported in various parts of the biosphere including human blood and tissues of various organs. Industrial and domestic effluents are two major contributing sources of microplastics in the ecosystem. A large volume of microplastics escape from the filtration processes of wastewater treatment plants (WWTP). This review studies the various removal methods for these pollutants in large-scale as well as lab-scale models and the present state of art facilities available to deal with it.
O QUADRO DE MODELO DE NEGÓCIO
DESENVOLVIDO PELO VALE DOS IPÊS - PRODUÇÃO ORGÂNICA, NO QUILOMBO FAZENDA PAU DE LEITE, ZONA RURAL DE MIRANDIBA - PE
Authors: Sampaio Neto Aluísio , Pacheco Clecia Simone Gonçalves Rosa , Araújo José Lincoln Pinheiro , Padilha Neto Antonio de Santana , Brandão Luma Mirely de Souza , Santos Florisvaldo Cavalcanti dos , Brandão Luana Mayara de Souza , Silva Ana Carla Pereira da , Brito Maria Victoria Souza Gonçalves , Santos Reinaldo Pacheco dos
Published: April 2023

O Quadro de Modelo de Negócios ou Business Model Canvas, como também é conhecido, é uma ferramenta que permite planejar, criar ou reformular algum empreendimento, sendo um instrumento que visa compreender de maneira fácil e lógica, a estrutura de um negócio, a partir da descrição de elementos e fases que compõem um empreendimento, como: Proposta de Valor, Canais, Segmento de Clientes, Relacionamento com Clientes, Recursos Principais, Atividades Principais, Parcerias Principais, Estrutura de Custos e Fontes de Receita. Objetivo: Analisar e compreender o quadro de modelo de negócio desenvolvido pelo empreendimento Vale dos Ipês - Produção Orgânica, criado em 2011, no Quilombo Fazenda Pau de Leite, localizado na Zona Rural de Mirandiba - PE. Método: É um estudo de caráter exploratório e descritivo, com abordagem qualitativa e quantitativa. Resultados: Após a análise do quadro de modelo de negócio do Vale dos Ipês - Produção Orgânica, constatou-se que há um grande potencial desse empreendimento, além da sua viabilidade através, principalmente, da produção e comercialização de diversos produtos, como doces, geleias, licores e mousses de diversas frutas, mel e própolis de abelhas, molhos de pimenta e mudas de árvores nativas e silvestres. Além disso, a empresa oferece assessoria técnica para produção orgânica e agroecológica, turismo de base comunitária e trilhas ecológicas. Para isso, a empresa utiliza importantes canais de comunicação, como o Instagram e WhatsApp, e conta com inúmeros parceiros, como o Banco do Nordeste, universidades e institutos locais. Conclusão: Demonstra-se um negócio interessante, apresentando um potencial de mercado em constante crescimento no país, aliado ao desenvolvimento econômico e sustentável.
CONTROLE BIOLÓGICO CONSERVATIVO DE PRAGAS NO CAFÉ
Authors: FRANÇA S. , DA SILVA M. , SILVA P. , ROCHA N. , CRUZ C. , MACEDO A. , OLIVEIRA M. , NOGUEIRA D. , RIBEIRO L. , FERNANDES F.
Published: April 2023

O trabalho descreve a importância da implementação do controle biológico associado com o manejo integrado de pragas. Partindo da hipótese de que têm que a implementação dessa tática estabelecerá um equilíbrio entre insetos-pragas, inimigos-naturais e meio ambiente. Deu-se uma determinada ênfase aos insetos presentes na cultura do café, demonstrando quais são os principais insetos-pragas e os danos ocasionados pelos mesmos, mas por outro lado também houve um diálogo sobre os principais inimigos naturais e qual inseto praga é seu alvo. Visto que com esse agroecossistema totalmente equilibrado, os inimigos-naturais serviriam como uma alternativa complementar ao controle químico ou até mesmo a não utilização do mesmo. Por fim foi demonstrado estudos já existentes sobre controle biológico conservativo e alguns resultados positivos obtidos através da utilização desse método que tende a ser cada vez mais utilizado no cenário atual agronômico.
AS MULHERES DO CAMPO E O BEM VIVER: O PROTAGONISMO ANOTADO NAS CADERNETAS AGROECOLÓGICAS
Authors: Ferreira Dulce Naiara Carvalho , Marinho Cristiane Moraes , Siqueira Ana Elizabeth Souza Silveira de
Published: April 2023

Objetivo: O objetivo deste artigo é refletir, a partir das luzes das teorias da economia crítica, como a economia feminista e a economia ecológica estão interligadas na prática das mulheres agricultoras no Sertão baiano possibilitando o Bem Viver, fomentando uma outra economia na agricultura familiar, e contrapondo a economia convencional. Métodos: Este artigo visa refletir as contribuições das mulheres agricultoras em uma outra perspectiva de economia para a agricultura familiar, a partir das Cadernetas Agroecológicas, implementadas pela Assessoria Técnica Contínua (ATC) da organização da sociedade civil do Serviço de Assistência Socioambiental no Campo e Cidade (SAJUC), que atua na assessoria técnica do Projeto Pró-Semiárido, executado pela Companhia de Desenvolvimento e Ação Regional (CAR), empresa pública do Estado da Bahia, vinculada à Secretaria de Desenvolvimento Rural, em parceria com o Fundo Internacional de Desenvolvimento Agrícola (FIDA), no município de Casa Nova – Bahia, em 06 comunidade rurais. A implementação da metodologia das Cadernetas Agroecológicas, em tais comunidades, foi iniciada em agosto de 2019 a julho de 2020. Este trabalho foi fundamentado a partir de uma pesquisa bibliográfica, no qual os dados aqui expressos foram obtidos de uma abordagem “qualiquanti”, fundamentada na pesquisa-ação, baseada em observações participantes, diário de campo, dados oficiais de domínio do SAJUC e dos relatos de mulheres agricultoras que participaram da metodologia de aplicação das cadernetas agroecológicas. Resultados: Foi possível demonstrar que a produção econômica, monetária e não-monetária oriunda das produções protagonizadas pelas agricultoras foi fundamental para à economia familiar, apontando para as economia feminista e ecológica como um caminho para o Bem Viver. Além disso, por meio das trocas e doações, foi possível o acesso de vizinhos e familiares, a alguns tipos de alimentos que não poderiam adquirir no mercado, aumentando a reciprocidade. Conclusão: A partir da análise será possível compreender em quais aspectos as mulheres agricultoras potencializam outras economias diferentes da convencional em seus territórios e como isso contribui para a construção do Bem Viver e de alternativas ao desenvolvimento rural.
Menuju Transisi Energi 2050: Quo Vadis Energi Baru dan Terbarukan
Authors: Siagian Abdhy Walid , Daffa Alghazali Muhammad Syammakh , Alify Rozin Falih
Published: April 2023

PLTU batu bara masih mendominasi bauran energi dalam pemenuhan kebutuhan energi Indonesia. Padahal, pemanfaatan batu bara memiliki dampak negatif yang letal baik bagi manusia maupun lingkungan. Ketidakbaruan energi ini juga menjadi masalah untuk diatasi dalam memenuhi kebutuhan energi Indonesia. Oleh karenanya, transisi energi kepada energi baru dan terbarukan diperlukan. Tulisan ini akan menganalisis konsistensi kebijakan energi Indonesia dalam mencapai transisi energi. Temuan penelitian ini menunjukkan bahwa kebijakan energi Indonesia belum konsisten untuk mencapai transisi energi dan masih bergantung pada batu bara.
The exact solutions of the fractional-stochastic Fokas-Lenells equation in optical fiber communication
Authors: Albosaily Sahar , Mohammed Wael , El-Morshedy Mahmoud
Published: April 2023

The fractional-stochastic Fokas-Lenells equation (FSFLE) in the Stratonovich sense is taken into account here. The modified mapping method is used to generate new trigonometric, hyperbolic, elliptic and rational stochastic fractional solutions. Because the Fokas-Lenells equation has many implementations in telecommunication modes, complex system theory, quantum field theory, and quantum mechanics, the obtained solutions can be employed to describe a wide range of exciting physical phenomena. We plot several 2D and 3D diagrams to demonstrate how multiplicative noise and fractional derivatives affect the analytical solutions of the FSFLE. Also, we show how multiplicative noise at zero stabilizes FSFLE solutions.
Special type convex functions on Riemannian manifolds with application
Authors: Akhter Ehtesham , Ali Musavvir , Bilal Mohd
Published: April 2023

In this manuscript, we define a special type convex function on Euclidean space and explore it on the Riemannian manifold. We also detail the fundamental properties of special type convex functions and some examples that illustrate the idea. Moreover, to demonstrate the application to the problems of optimization, these special type convex functions are used.
HABITAT SAFETY EVALUATION OF SUSTAINABLE HOUSING FROM THE PERSPECTIVE OF HOUSEHOLDS
Authors: She Yujuan , Wu Shurui , Wang Yu , Zhu Yahui , Jiao Liudan
Published: April 2023

In recent years, the housing market has developed rapidly during the process of urbanization. Since people require adequate housing safety, safety challenges associated with housing have received increasing attention. Although development of sustainable housing was rapid in the last few decades, insufficient studies considered households’ needs and examined the health and psychological safety issues in sustainable housing. This study aims to establish an indicator system and develop a model to evaluate habitat safety from three dimensions: physical safety, health safety, and psychological safety. This study develops an evaluation system containing 46 indicators to assess the safety performance of sustainable housing from households’ perspectives. In addition, criteria importance through intercriteria correlation (CRITIC) method is combined with the Cloud Model to provide systematic and visual evaluation results. A government-funded sustainable housing project in Chongqing, China, is selected as a case study and questionnaire surveys were delivered to collect the raw data of subjective ratings on the 46 safety indicators. The following findings are observed: (1) there is a prominent demand for improvement in psychological safety of sustainable housing, followed by health safety; (2) different age groups have different safety needs; and (3) regulations and standards are very important to improve the habitat safety of sustainable housing. The study considers safety issues from households’ perspectives and introduces a different idea of human safety in sustainable housing. It provides an effective method to evaluate housing safety and could be a useful reference for further development of sustainable housing.
Local Perspectives on Spatial Accessibility to Market in the Afram Plains, Ghana
Authors: Dede-Bamfo Nathaniel , Chow T. Edwin , Ekeanyanwu Chikodinaka Vanessa
Published: April 2023

The capacity to reach surrounding areas from a location, commonly known as spatial accessibility, is crucial in the economic development of such a location. The Afram Plains in Ghana, despite been touted as the food basket of the country, has long struggled with poor spatial accessibility due to the lack of reliable transport infrastructure. This problem negatively impacts the movement of people and products, which ultimately hinders the economic development of the area. This research aimed at capturing the perspectives of Afram Plains' residents regarding their spatial access to nearby markets. A mixed-method approach comprising survey questionnaire, interviews, and geographic information system (GIS) was utilized. The results affirmed that movement within the area, particularly to market, is difficult. Again, due to limited transport facilities, many people resort to walking as their primary means of transportation. These findings are expected to provide some vital ideas for future road planning in the area.
Effect of Atmospheric Dielectric Barrier Discharge on Optical, Electrical and Surface Properties of ZnO Film
Authors: Pudasaini Anil , Chaudhary Dinesh Kumar , Chalise Roshan , Shrestha Pitamber , Joshi Leela Pradhan , Khanal Raju
Published: April 2023

Among the numerous metal oxide semiconductors, zinc oxide (ZnO) is one of the most widely used materials in various fields due to its non-toxic nature, tunable electric and optical properties, and good thermal and chemical stability. This research aims to study the tuning of optical, electrical, and surface properties of ZnO film treated with dielectric barrier discharge (DBD) plasma produced at atmospheric pressure. The result revealed a significant decrease in its optical band gap, but there was an increase in conductivity. The results of contact angle measurement clearly showed the change of surface nature from hydrophobic to hydrophilic for DBD-treated ZnO film.