bluuebunny/crossref_metadata_2025 huggingface dataset:
Pentingnya Strategi Pemasaran Pada Pengembangan Kemasan UMKM Desa Kertarahayu
Authors: Rosita Een
Published: December 2022

Desa Kertarahayu merupakan desa yang terletak di Kabupaten Bekasi Kecamatan Setu. Dan juga merupakan desa yang sebagian besar mata pencaharian masyarakatnya adalah petani. Namun ada juga masyarakat yang bekerja sebagai pedagang hasil produksi usaha rumahan atau usaha mikro. Metode penelitian yang digunakan yaitu: Observasi dan wawancara. Hasil dan pembahasan, melakukan Pelatihan peningkatan desain kemasan pada UMKM Desa Kertarahayu. Demi meningkatkan penjualan produk UMKM warga kertarahayu Kelompok 107 melakukan kegiatan sosialisasi dengan tema "Lokakarya Pengembangan Kemasan Pada UMKM Desa Kertarahayu" yang dapat menambah wawasan warga kertarahayu terhadap kemasan produk dan pemasarannya dengan menerapkan 4p (Product, Price, Place, Promotion) untuk memaksimalkan penjualan produk UMKM di Desa kertarahayu.
Urgensi Penyelamatan Danau Prioritas di Indonesia: Studi Kasus Upaya dan Komitmen Penyelamatan Lingkungan Hidup Danau Toba
Authors: Simatupang Karmel Hebron , Arlan Adri , Felicia Avirell
Published: December 2022

Sejak Konferensi Nasional Danau Indonesia I, Tahun 2009 di Bali, pemerintah melalui 9 Kementerian telah menandatangani kesepakatan Bali tentang pengelolaan Danau Berkelanjutan 15 Danau Prioritas di Indonesia. Kemudian disusun rencana penyelamatan. Akan tetapi, sampai kini upaya penyelamatan lingkungan hidup danau-danau di Indonesia tergolong sangat lambat implementasinya di lapangan. Pada penelitian ini, penulis fokus menganalisis bagaimana upaya penyelamatan lingkungan hidup di Danau Toba sebagai salah satu danau prioritas nasional. Seiring telah diterbitkan nya Peraturan Presiden RI No.60 Tahun 2021, tentang Penyelamatan Danau Prioritas Nasional, komitmen pemerintah dinantikan masyarakat luas. Danau Toba yang telah ditetapkan pemerintah sebagai destinasi wisata superprioritas nasional dan internasional menjadi semakin urgen diselamatkan di tengah kondisinya yang belum berubah dan bahkan semakin rusak. Berdasarkan hasil penelitian ini ditemukan, bahwa pemerintah belum berkomitmen sepenuhnya dalam penyelamatan Danau Toba, itu ditandai dengan masih enggannya pemerintah mencabut izin-izin perusahaan yang selama ini telah terbukti merusak ekosistem Danau Toba.
Tensions in managing the online network development of autoethnographers
Authors: Grant Alec , Barnes Jamie , Klevan Trude , Donaldson Ali
Published: December 2022

Although literature exists on the methodological development of autoethnographers in the classroom context, little has been written about achieving such development in online networks of dispersed individuals, and the social psychological difficulties between senior members of such networks that might ensue. This conversational autoethnography developed after Alec Grant, the first author, angrily withdrew by email from the South Coast Autoethnography Network (SCAN). Since its inception in 2013, the hub, or centre of operating activity of SCAN has historically been mostly shared between a small number of academics working in, or associated with, Sussex University and the University of Brighton in the south coast of England. With around 65 participants, SCAN aims to facilitate the development of autoethnographers, with many of its members inexperienced in the approach to differing degrees. In their conversational exchange, the authors explore, respond to, and try to make sense of and resolve, the tensions that developed in the group before and after Alec’s withdrawal from it. The authors believe that this article captures many of the interpersonal difficulties that might inevitably arise between senior members, in autoethnographic networks internationally. They therefore hope that it will serve as a useful resource for individual readers and network groups.
Derzhavin University initiatives in system development of continuing pedagogical education in the Tambov Region
Authors: Gushchina Tatyana I. , Kurin Andrey Yu. , Makarova Lyudmila N.
Published: December 2022

In the context of the main trends of pedagogical education such as “digital pedagogy: e-learning and electronic educational environment”, “practice-oriented training” we describe the initiatives of the Pedagogical Institute of Derzhavin University in the development of the system of continuing pedagogical education of the Tambov Region. The most significant initiatives described in the article include the formation of an association of continuing pedagogical education with the aim of developing a regional system of continuing pedagogical education through the implementation of variable educational and professional tracks for the formation of young professionals; adjustment of curricula for testing the core of pedagogical training; clarification of the nomenclature of programs of training areas “Pedagogical Education” with two profiles; the opening of a Pedagogical Technopark as a center for the organization of teaching students methods and technologies of teaching academic subjects, including for preparation for pedagogical activity on the basis of a cluster of modern natural science laboratories, a research and training center in biotechnology, a cluster of high-tech laboratories specializing in education, research and development in information technology and robotics, a studio complex for creative activity of schoolchildren; creation of a center for scientific and methodological support of teachers; conducting fundamental and applied research in education in priority areas of development of science and technology of the Tambov Region and integrating the results of scientific research into the educational activities of the system of continuing pedagogical education of the Tambov Region – preschool education, pre-professional pedagogical training, higher education; postgraduate support of young teachers.
Un cas clinique d'anesthésie rachidienne-péridurale combinée à deux niveaux avec fixation d'un cathéter épidural dans le canal sous-cutané avec une sonde à la paroi abdominale antérieure
Authors: Emelyanov Sergey A.
Published: December 2022

We present an example of a combined two-level spinal-epidural anesthesia with fixation of an epidural catheter in the subcutaneous canal and its removal to the anterior abdominal wall in an 80-year-old patient during surgical treatment of a closed pertrochanteric fracture of the left femur with fragment displacement. After preoperative preparation and examination, the patient underwent surgery: Open reposition of a comminuted pertrochanteric fracture of the left femur, osteosynthesis with a dynamic femoral screw. Anesthesiological pro-vision of surgical intervention: combined two-level spinal-epidural anesthesia with a method developed in our clinic for fixing an epidural catheter in the subcutaneous canal using a modified spinal needle and bringing the catheter to the anterior abdominal wall. After the operation, the patient underwent postoperative analgesia in the form of prolonged epidural analgesia for 96 hours. The postoperative period passed without complications. On the 12th day, the patient was discharged for outpatient treatment by a traumatologist. The use of neuraxial methods of anesthesia in an elderly patient with a high anesthetic risk in the surgical treatment of a fracture of the proximal femur with postoperative analgesia in the form of prolonged epidural analgesia, in which the epidural catheter was tunneled under the skin of the lumbar region and brought to the anterior abdominal wall, contributed to the successful implementation of surgery, early activation and verticalization of the patient, the absence of complications in the postoperative period. A new method of fixing the catheter in the subcutaneous canal with its removal to the anterior abdominal wall made it possible to prevent dislocation of the epidural catheter.
Effect of anticovid plasma on COVID-19 among patients in intensive care unit of COVID hospital
Authors: Yamshikov Oleg N.
Published: December 2022

The spread of the SARS-CoV-2 virus and the increased mortality caused by it has led to the search and evaluation of available methods of drug therapy for patients, especially those who are in intensive care units of COVID hospitals. A feature of the course of coronavirus infection is its unpredictable nature and severity. In this regard, it became necessary to use targeted and powerful means of pathogenetic therapy. The lack of a specific treatment for COVID-19 brought to mind the possibility of passive immunotherapy, first through the transfusion of convalescent donor plasma, and then the plasma of vaccinated individuals. The purpose of such therapy is to introduce covid antibodies into the recipient's blood to neutralize the virus. At the same time, the question remains about the effectiveness of this treatment method in patients in serious and extremely serious condition in the intensive care unit of the COVID center. According to various studies, anticovid plasma is suitable for use in patients at the initial stages of the disease and in the presence of immunodeficiency in the patient. At the same time, the overall mortality in the intensive care unit and intensive care among severe and extremely severe patients may not decrease.
Da superprodução imobiliária à expansão das necessidades por moradia
Authors: Otero Estevam Vanale , Damasceno Bárbara Caetano
Published: December 2022

No interior paulista os processos de desconcentração industrial e interiorização do desenvolvimento representaram, além de crescimento econômico e ampliação da oferta de empregos, o surgimento e acirramento de diversos problemas urbanos antes restritos às metrópoles, em especial quanto à moradia dos estratos de baixa renda. As políticas públicas destinadas a enfrentar o problema adotaram como solução hegemônica a produção de novas moradias, sobretudo a partir do Programa Minha Casa Minha Vida. Ainda assim, após décadas de adoção desse modelo, observa-se um descolamento entre oferta e demanda em que, paradoxalmente, identifica-se uma forte expansão de ambas. No período recente, parcela significativa da literatura se concentra na análise da produção de moradias e seus impactos socioterritoriais nos grandes centros urbanos e metrópoles, de modo que são ainda insuficientes os estudos sobre a problemática urbana e habitacional em realidades não-metropolitanas, e que permitam a distinção entre as formas de produção do espaço e das necessidades habitacionais em cidades de pequeno e médio porte. Desta maneira, o presente artigo busca demonstrar, a partir da análise das necessidades por moradia e da produção habitacional para um conjunto de 23 municípios da Aglomeração Urbana de Piracicaba, como a produção da moradia enquanto mercadoria resultou num quadro de superprodução, sem ter sido capaz de enfrentar as reais necessidades habitacionais dessas cidades.
Jaringan Ulama Falak Nusantara
Authors: Hidayatullah Nur
Published: December 2022

Ilmu Falak yang sampai ke kita saat ini merupakan perjalanan panjang dari satu tokoh ke tokoh yang lain, dari satu daerah ke daerah yang lain, melintasi banyak ruang dan waktu. Mulai dari Hermes di Babilonia sampai ke para kyai di Indonesia. Di akhir abad 20 M, Musnid ad-Dunya Syekh Muhammad Yasin al-Fadani tampil sebagai poros keilmuan di dunia, utamanya di bidang ilmu hadis dan sanad. Ternyata ia juga ahli falak, bahkan mempunyai sanad keilmuan falak yang tinggi dibanding dengan ulama falak lainnya di nusantara. Menjaga tradisi sanad dan ijazah keilmuan merupakan salah satu cara mendapatkan ilmu yang berkah dan manfaat. Penelitian ini diarahkan kesana. Berangkat dari kitab al-Mawahib al-Jazilah, Bulugh al-Amani, dan al-Maslak al-Jali, penulis merumuskan masalah: 1) bagaimana interaksi Syekh Yasin dengan Ilmu Falak, dan 2) bagaimana jaringan sanad keilmuan Falak Syekh Muhammad Yasin al-Fadani. Semua ulasan yang ada merupakan hasil dari studi pustaka dan merupakan penelitian kualitatif. Penelitian ini menyimpulkan bahwa: 1) Syekh Yasin mempunyai setidaknya 15 guru di bidang Ilmu Falak, dan telah menelaah ratusan kitab falak, 2) sanad keilmuan falak Syekh Yasin terhubung sampai Syekh Muhammad al-Hattab ar-Ra?ini al-Maliki (902 – 954 H), ulama besar abad kesepuluh hijriah, dan 3) mempunyai sanad yang terhubung dengan para ulama falak di nusantara, baik terhubungnya karena menjadi guru atau karena seperguan dengan guru yang sama.
ISTIWAAINI “SLAMET HAMBALI”
Authors: Fadholi Ahmad
Published: December 2022

Perkembangan ilmu pengetahuan dan teknologi memunculkan berbagai alat untuk mempermudah manusia. Tidak ketinggalan pula dalam pengukuran arah qiblat, ada beberapa alat bantu untuk memudahkan pengukurannya. Salah satunya alat yang bernama “Istiwaani Slamet Hambali”, munculnya alat ini sebagai jawaban atas anggapan bahwa menetukan arah qiblat itu susah “njelimet” dalam pandangan masyarakat. Alat ini didesain agar dapat digunakan dengan sangat mudah, cepat dan akurat sehingga memungkinkan untuk digunakan kapanpun, dimanapun dan oleh siapapun, selama ada sinar Matahari.
Telaah Kritis Gerhana Flat Earth Dalam Perspektif Teori Kebenaran Pragmatis
Authors: Fikri Mursyid
Published: December 2022

: Di tengah berkembang teori sains modern terkait gerhana, teori ini dihadapkan sebuah tantangan baru dengan kemunculan  gerakan konspirasi penganut  konsep bumi datar (Flat Earth) yang mengkritik berbagai konsep bumi, bulan, matahari dan gerhana sains modern. Mereka beranggapan bahwa Jarak dan ukuran bumi, bulan dan matahari versi sains modern yang telah di ajarkan disekolah-sekolah 500 tahun yang lalu sampai sekarang hanyalah sebuah “asumsi diatas asumsi tanpa bisa di buktikan secara ilmiah”. ketika jarak matahari dan bulan terhadap bumi berbeda dengan sains modern akan berdampak terhadap teori gerhana yang dibangunnya,  flat earth mengungkap teori bahwa gerhana bukan terjadi karena masuknya bayang-bayang bulan melainkan ada benda langit selestial yang lain yang menutupi matahari. Jenis penelitian ini yaitu penelitian library research dengan dua pendekatan yakni pendekatan metode kualitatif dan pendekatan sudut pandang filsafat ilmu teori kebenaran. Oleh sebab itu penulis bertujuan untuk menelaah secara kritis pengembangan teori gerhana penganut flat earth. Dalam hal ini sejauh mana Penganut flat earth mendeskripsikan keselarasan matahari, bulan, bumi pada kejadian gerhana. dan menelaah teori gerhana tersebut menurut teori kebenaran pragmatis.
Analisa Pergeseran Kalender Gregorian Menjadi Kalender Dunia
Authors: Sari Indah Puspita
Published: December 2022

The Julius calendar or also known as the Old Style calendar is a calendar pioneered by Julius Caesar as a reform of the Roman republican calendar. The Julian calendar was formed at the time of knowing a difference of about 3 months in the calendar that was in effect at that time, namely the Ancient Roman Calendar which had been replaced long ago. The Ancient Roman calendar set the length of a year at only 365 days, ignoring the remaining days of the actual solar year. This is known when the day of the harvest season coincided with a holiday among the Romans which actually fell in summer but occurred in winter, where the number of days in the Roman year was shorter than the number of days in the solar year. Therefore, Julius Caesar and assisted by a Greek astronomer named Sosigenes corrected the error of the Roman calendar system at that time by making one year 365 days. Then the Gregorian calendar was born. This calender is the Gregorian calender or it can also be called the New Style Calender reformed from the Julius calender. The Gregorian calender is the most widely used calender in the western world and is the standard for calculating international days today although initially rejected by some countries.Keywords: Julius calender, Gregorian calender, Gregorian calender rejection.
Analisis Kesesuaian Kalender Jawa Islam dengan Kalender Hijriyah
Authors: Sholehuddin Muhammad
Published: December 2022

Before Islam came, Javanese people were familiar with the calendar system. The influx of HinduBuddhist influences also influenced the calendar in Java. Then with the start of the establishment of an Islamic-style kingdom on the island of Java, especially during the Islamic Mataram period when the influence of Islam entered the island of Java, the calendar system was changed by the great sultan to a Javanese calendar using Islamic calendar calculations. The Javanese calendar is still in existence so it is necessary to know the adjustments that occur between the Saka calendar and the Hijri calendar which then produces the Javanese Islamic calendar and to know the application used to determine the beginning of the Qomariah month with the aim of knowing howto use the Javanese Islamic calendar and know its application in determining the beginning of themonth of Qomariah. The calculation system used in the Javanese Islamic calendar is the Urfi reckoning system, except in certain years where there are different long and short year appointments at certain times. Based on the results of the analysis, it is concluded that the adjustments of the Javanese Islamic calendar in the calculations are intended to maintain conformity with the hijri calendar.Keywords: Javanese Calendar, Islamic Calendar, Qomariah Calendar
Studi Komparasi Terhadap Akurasi Istiwaaini Dengan Kompas Kiblat Android “Muslim Go” Dalam Pengukuran Arah Kiblat
Authors: - Misrahul Safitri
Published: December 2022

This article discusses the comparison of the accuracy of two tools that are often used to measure the Qibla direction, namely Istiwaaini and the Qibla Compass Android Muslim Go. In addition to knowing and studying the working principles and calculation methods applied to the two tools, this study also aims to compare their accuracy in determining the Qibla direction. This study is a field research with a qualitative approach. Data was collected by measuring the Qibla direction directly at the Great Mosque of Central Lombok using these two tools. Meanwhile, the analysis method uses astronomical data analysis and descriptive data analysis. The results showed that Istiwaain showed more accurate results compared to the Muslim Go android Qibla compass. The inaccuracy of the results displayed by the Muslim Go android Qibla compass could be due to the absence of magnetic declination correction in determining the Qibla azimuth. Keywords: Istiwaain, Qibla Compass Android Muslim Go, Qibla Direction Measurement Method, Accuracy
Hisab Awal Bulan Syiah Kuala (Menyunting Dari Naskah Risalah Asy-Syaikh ‘Abd ArRauf Fi At-Taqwim)
Authors: Cosara Wali
Published: December 2022

Treatise of Asy-Shaykh Abdur Ar-Rauf fi At-Taqwim's is one of the collections of the Pedir Museum in Aceh which consists of three sheets (six pages) in Arabic-Malay language which discusses the calculation of the Hijri calendar. However, the text does not explain the origin of the numbers and their formulas. So the calculation of the Hijri calendar described in the manuscript cannot be used at this time because the difference is very far from the Hijri calendar that we usually use. This research is included in library research, namely research by collecting data and information from books, journals, and other recorded documents related to the calculations described in the text of As-Shaykh 'Abdur Ar-Rauf fi At-Taqwim's Treatise. Data analysis was carried out by examining the origin of the letters of the year and the letters of the month and their corrections so that the calculation of the beginning of the Hijri month described in the AsShaykh 'Abdur Ar-Rauf fi At-Taqwim treatise can be used throughout the ages. In this study there is a synthesis that the calculation of the beginning of the month described in the As-Shaykh 'Abdur Ar-Rauf fi AtTaqwim treatise must be corrected to adjust to the hijri calendar that we use every day.Keywords: Treatise of As-Shaykh 'Abdur Ar-Rauf fi At-Taqwim, Early Months, Syiah Kuala.
Konvergensi Rukyat Tarbi’ dan Badr Dengan Kriteria Imkanur Rukyat Neo MABIMS
Authors: Ansori M. Ihtirozun Ni'am , Waliawati Waliawati
Published: December 2022

The determination of the beginning of the lunar month has always been a hot topic of discussion, especially in the months of Ramadan, Shawwal and Zulhijah. The method used to determine the beginning of the lunar month is the reckoning and rukyat methods. The Nurul Hidayah Islamic Boarding School in determining the beginning of the lunar month is quite different from what the government does, namely rukyat tarbi' and badr. The government is currently using Imkanur Rukyat Neo MABIMS. The convergence of rukyat tarbi' and badr with Imkanur Rukyat Neo MABIMS are both methods used to determine the beginning of the lunar month. In its application, different results are obtained. Of the many factors, the most influential is the reckoning used and the standard of the height of the new moon which is quite high.
Akurasi perhituangan Arah Kiblat Pulau Lombok berdasarkan Hisab Tgh. Ibrahim al-khalidy kediri
Authors: Syukri H.Muhammad Syafi`i
Published: December 2022

This paper describes how Tgh. Ibrahim al-Kahidiy Kediri West Lombok West Nusa Tenggara in determining the Qibla direction, especially on the island of Lombok, which is Tgh. Ibrahim al-Khlidiy Kediri West Lombok West Nusa Tenggara in the field of fiqh studied with famous hijaz scholars and especially in the field of astronomy studied with Sheikh Khalifah Bin Nibhan al Falaky (1270-1355) one of the great scholars in astronomy at his time, hence Tgh. Ibrahim al-Khlidiy Kediri and the results of his astrological calculations, especially in determining the Qibla direction, became a reference for his students in determining the Qibla direction for mosques, prayer rooms in Lombok, even though at this time various modern applications have mushroomed that offer Qibla direction with scientific methods and formulas but classical calculations using the rubu' mujayyab tool which is a tradition of Islamic boarding schools is not far from high accuracy and precision, it turns out that the results of calculating the Qibla direction of Tgh. Ibrahim al-Kahlidiyah Kediri for the island of Lombok: 22.3/4 ( 22.45) proved to be in accordance with the line stretched from the top of the Ka'bah to the position of the mosque where the Qibla direction was measured using this data.
Enhancing the Performance of Educational Systems using Efficient Opinion Mining Techniques
Authors: Mohamed Mohamed Hegazy , Abdelgaber Sayed , Abd-Ellatif Laila
Published: December 2022

Governments and educational authorities around the world are emphasizing performance evaluation of educational systems. Opinion Mining (OM) has gained acceptance among experts in various regions, including the preparation space. The proposed model involves Two modules: the data preprocessing module and the opinion mining module. The main objective of our article is to enhance educational systems through the analysis of student comments, teacher comments and course comments. Furthermore, the proposed model uses a bundling task to make groups of packs for students from its comments. The datasets were 10,000 instances, 80% of which were for training and 20% for testing. The results showed that K-Means Algorithm had the best accuracy time /Sec of 0.03. The correctly classified 8,000 instances were equal to 96%, and incorrectly classified 2,000 instances were equal to 4%, Accuracy of the model is 95%, Recall is 94.8% and F-Measure is 93.7% between others algorithms. clustering and Association Rule Mining phases Algorithms namely Chi-Square test is good quality than Others Algorithms.
Sustainable Composites From Nature to Construction. Hemp and Linseed Reinforced Biocomposites Based on Biobased Epoxy Resins
Authors: Vidal Julio , Ponce David , Mija Alice , Rymarczyk Monika , Castell Pere
Published: December 2022

The present manuscript describes the use of natural fibers as natural and sustainable reinforcement agents for advanced biobased composite materials for strategic sectors, such as construction. The characterization carried up have shown the potential of both hemp and linseed natural fibers and their composites to be used as insulation materials. Nevertheless, linseed shows better mechanical performance and hemp a higher fire resistance. Demonstrating that although natural fibers have similar properties each of them should be used specifically for a purpose. Besides the work also evaluates the use of bio matrixes in composites, demonstrating their feasibility and how they impact the properties of the final material, our bio resin enhances fire resistance and decrease the water absorption capacity of the natural fibers. Enabling the use of such composites as a final product. Therefore, it has been demonstrated that it is possible to manufacture a biocomposite with non woven natural fibers. In fact, for properties such as thermal conductivity, they are able to compete with current materials. Proving that biomaterials are a suitable solution for developing sustainable products fulfilling the requirements of the end user applications.
Land Use/Land Cover Dynamics, Its Driving Forces and Impacts on Ecosystem Services in Jimma Rare District, North-Western Ethiopia
Authors: Wayesa Gamachu , Mammo Siraj , Moges Kidane , Tolessa Terefe
Published: December 2022

Land use/cover (LULC) change is one of the most important environmental phenomena that have affected the earths’ systems and its ecosystem services. Hence, this study was conducted with the main objective of assessing LULC change, its drivers andimpactson ecosystem services in Jimma Rare district for the year 1974–2019. In order to understand the spatial and temporal changes of LULC and its drivers four satellite images for the year1974, 1991, 2005 and 2019 were obtained and respondent interviews, focus group discussions (FGD) and field observations were employed. Moreover, the ecosystem service value coefficients developed at a global level were used to assess the impacts of LULC on ecosystem service provision of the study area. The results of the study revealed that grass land and forest land decreased from 4518.87ha (13.09%) to 902.42ha (2.61%) and 3287.79ha (9.52%) to 2506.63ha (7.26%) from 1974-2019 respectively. Similarly, wetland declined from1182.08ha (3.42%) to 562.37ha (1.63%) in the stated period.The greatest expansion of cultivated land and settlement area occurred during the year 1974-1991. Agricultural expansion, deforestation, overgrazing and expansion of rural and urban settlement were among the major proximate causes. Likewise, the major underlying drivers of LULC dynamics include population increase, the presence of weak policy and institutions, poverty and lack of awareness were identified by respondents and focus group discussants. The total natural capital value reduced from 662.75 (million $/ha/yr) to 577.03 (million $/ha/yr) in the study period indicating the impacts of LULC on ecosystem services. From this study, it is possible to conclude that Jimma Rare District has experienced a significant change in LULC and ecosystem service values over the past 45 years. Hence, appropriate policy packages of land use are required to curb the negative impacts of such changes in the study district in the provision of the required services for sustainable development.
Micronutrients in the Treatment of ADHD: Speculation or Opportunity?
Authors: Coppola Maurizio , Mondola Raffaella , Bevione Francesco
Published: December 2022

Attention Deficit Hyperactivity Disorder is a neurodevelopmental disorder characterised by core symptoms of impulsivity, locomotor hyperactivity, and inattention affecting around 5% of children and adolescents worldwide. Although this brain illness is wrongly considered a childhood disorder, increasing evidences suggest that it can persist into adulthood in about 65% of cases leading to significant clinical, socio-relational, and occupational disabilities. Pharmacological and non-pharmacological treatments currently available permit to achieve numerous benefits, in particular, if started early in childhood, however, quality of life of patients affected by ADHD could be compromised in any case in terms of self-esteem, ability to finalize projects, and personal satisfaction. In this study we evaluated the impact of micronutrient formulations on ADHD symptoms in both children and adults analyzing results of randomized, placebo-controlled trials.
Charge Transport in Organic Semiconducting Crystals Exhibiting TADF: Insight from Quantum-Chemical Calculations
Authors: Sosorev Andrey Yu. , Dominskiy Dmitry I. , Dubinets Nikita O.
Published: December 2022

Luminophores featuring thermally activated delayed fluorescence (TADF luminophores) are the workhorse of the third- and fourth-generation OLEDs. While these compounds had usually been used as dopants embedded in the host, non-doped TADF OLEDs have recently shown significant progress as well reaching the performance comparable to the host-dopant ones. For efficient operation of the non-doped OLEDs, charge transport in neat films and single crystals of TADF luminophores is important; however, this issue was nearly unexplored theoretically. In the current study, we calculated charge mobilities in four TADF single crystals, which have different molecular packing motifs. Specifically, in one of them both donor and acceptor moieties form uniform π-stacks, while in the others donors (acceptors) show alternating lateral shifts along the stacks; the difference in molecular packing results in the difference of transfer integral between the molecules. Reorganization energies differ as well up to four times for the studied crystals. As a result, charge mobilities vary from 0.001 to ~0.3 cm2/(V∙s), the largest being predicted for the crystal of the luminophore consisting of rigid donor and acceptor. We anticipate that the results obtained can be useful for the design of TADF luminophores for non-doped OLEDs, OLETs and other organic light-emitting devices.
Retracing Phylogenetic, Host and Geographic Origins of Coronaviruses with Coloured Genomic Bootstrap Barcodes: SARS-CoV and SARS-CoV-2 as Case Studies
Authors: Hassanin Alexandre , Rambaud Opale
Published: December 2022

Phylogenetic trees of coronaviruses are difficult to interpret because they undergo frequent ge-nomic recombination. Here, we propose a new method, named coloured genomic bootstrap (CGB) barcodes, to highlight the polyphyletic origins of human sarbecoviruses and understand their host and geographic ori-gins. The results indicate that SARS-CoV and SARS-CoV-2 contain genomic regions of mixed an-cestry originating from horseshoe bat (Rhinolophus) viruses. First, different regions of SARS-CoV share exclusive ancestry with five Rhinolophus viruses from Southwest China (RfYNLF/31C: 17.9%; RpF46: 3.3%; RspSC2018: 2.0%; Rpe3: 1.3%; RaLYRa11: 1.0%) and 97% of its genome can be related to bat viruses from Yunnan (China), supporting its emergence in Rhinolophus species of this province. Second, different regions of SARS-Cov-2 share exclusive ancestry with eight Rhi-nolophus viruses from Yunnan (RpYN06: 5.8%; RaTG13: 4.8%; RmYN02: 3.8%), Laos (RpBA-NAL103: 3.3%; RmarBANAL236: 1.7%; RmBANAL52: 1.0%; RmBANAL247: 0.7%), and Cam-bodia (RshSTT200: 2.3%), and 98% of its genome can be related to bat viruses from northern Laos and Yunnan, supporting its emergence in Rhinolophus species of this region. Although CGB barcodes are very useful to retrace the origins of human sarbecoviruses, further investigations are needed to better apprehend the diversity of coronaviruses in bats from Cambo-dia, Laos, Myanmar, Thailand and Vietnam.
Consideraciones en el diseño de robots para la atención médica en el mundo post COVID-19
Authors: Reyes Castillo Mauricio Enrique , Fonseca Murillo Andrés Joaquín , Cruz Mendoza Carlos Ricardo
Published: December 2022

A finales de 2019, la pandemia de COVID-19 se extendió rápidamente por todo el mundo. Como resultado de las dificultades derivadas de esta situación sanitaria emergente, se propuso utilizar robots en áreas médicas específicas. A partir de esto, el sector médico mundial aumentó el uso de robots de servicio para automatizar tareas repetitivas y riesgosas, así como para el transporte, almacenaje, entrega de alimentos, medicamentos y suministros. Sin embargo, la pandemia forzó la implementación de nuevos protocolos de interacción con los que se puso en evidencia el desarrollo incipiente de tales sistemas, demostrando su muy poca capacidad para hacer frente a las necesidades que conlleva la actual situación. En este artículo se presentan algunas consideraciones para la manufactura de sistemas, de acuerdo a criterios de diseño de productos biomédicos. Finalmente, se mencionan algunos problemas y retos que enfrentarán los desarrollos robóticos médicos en el futuro post pandemia.
Absorbedor dinámico de vibración no tradicional para controlar fuerza inercial
Authors: Mendoza-Larios José Gabriel , Barredo-Hernández Eduardo , Maldonado-Bravo Irving Abdiel
Published: December 2022

En este artículo se aborda el problema de optimización del absorbedor dinámico de vibración no tradicional (NDVA) para el control pasivo de vibración en una estructura de un grado de libertad sometida a excitación inercial. Para la obtención de los parámetros óptimos de diseño del NDVA, se aplicaron dos enfoques diferentes: la técnica de los puntos fijos y el criterio H∞. De la implementación de la técnica de los puntos fijos en combinación con la técnica de ajuste de frecuencias de Krenk se obtuvieron relaciones simples para los parámetros de diseño del NDVA. Por otro lado, mediante el método de Nishihara y el Teorema de Vieta se redujo el problema de optimización del criterio H∞ a la solución de un sistema restringido de ecuaciones no lineales. Este sistema se resolvió para el rango de valores de la relación de masa 1 %≤μ≤20 %. Para este rango de valores el NDVA, en comparación con el absorbedor dinámico de vibración tradicional (DVA), presenta una mejora de 0.36 – 15.7 % en la supresión de vibración.
The Validity of the Vibrations, Waves, and Sounds - Related Guided Inquiry Learning Material Assisted by Google Sites
Authors: Lukum Astin , Abdjul Tirtawaty , Hermanto I Made
Published: December 2022

This study aims to describe the validity of the vibration, waves, and sounds – related guided inquiry learning material assisted by Google sites. This type of research is quantitative research with a descriptive approach that is focused on the validation test process through expert validation tests. The instrument used in this research is the expert validation sheet. The learning material validated in this study include lesson plans, student worksheets, teaching materials, learning media and learning outcomes tests. The results of lesson plans validation by experts obtained an average score of 3.3 (valid). For the validation of the student worksheets, the average score is 3.1 (valid). The validation of teaching materials obtained an average score of 3.4 (valid). The validation of learning media obtained an average score of 3.4 (valid). And the learning outcomes test obtained validation results with an average score of 3.2 (valid). From these results, the overall average value of the validation of learning tools is 3.3 and is included in the valid category. So it can be concluded that the guided inquiry learning material assisted by Google sites on the material of vibration, waves, and sound developed is feasible to be used in the learning process.
Pertumbuhan Benih Kakao pada Berbagai Taraf Pupuk NPK pada Media Sub Soil
Authors: Suwitra IKetut , Saidah Saidah , Wahyuni Andi Nirma , Amalia Anugerah Fitri , Syafruddin Syafruddin , Rahayu Heni SP , Fadilah Nur , Udarno Laba
Published: December 2022

Kakao merupakan salah satu komoditas unggulan sektor perkebunan Indonesia, namun saat ini produktivitasnya mengalami penurunan. Hal ini salah satunya diakibatkan umur tanaman yang tidak produktif lagi serta intensitas serangan hama dan penyakit yang tinggi. Permasalahan tersebut dapat diatasi dengan penanaman kembali dengan benih unggul yang memiliki potensi hasil tinggi. Pertumbuhan benih kakao dipengaruhi oleh unsur hara yang tersedia dalam media tanam, diantaranya unsur N, P, dan K. Tanah lapisan atas (top soil) merupakan media yang paling baik namun tidak selalu tersedia, sehingga  pemanfaatan tanah lapisan bawah (sub soil) dapat menjadi alternatif dengan penambahan unsur hara N, P, dan K. Penelitian ini bertujuan mendapatkan dosis pupuk NPK yang tepat untuk memacu pertumbuhan benih kakao pada media sub soil. Penelitian dilaksanakan di Instalasi Penelitian dan Pengkajian Teknologi Pertanian (IP2TP) Sidondo. Benih kakao yang digunakan adalah ICCRI 08H. Rancangan yang digunakan adalah rancangan acak kelompok dengan enam taraf dosis NPK 16-16-16, yakni: 1) Kontrol atau dosis 2,5 g/benih (P0); 2) 10 g/benih (P1); 3) 12,5 g/benih (P2); 4) 15 g/benih (P3); 5) 17,5 g/benih (P4) dan 6) 20 g/benih (P5), dengan ulangan sebanyak empat kali. Pengamatan komponen pertumbuhan meliputi: tinggi tanaman, diameter batang, panjang akar, jumlah daun, dan bobot tanaman. Hasil penelitian menunjukkan bahwa pemberian pupuk NPK 16-16-16 dengan dosis 12,5 g/benih menghasilkan pertumbuhan benih kakao terbaik khususnya pada perkembangan pembentukan akar, namun dengan dosis 10 g/benih mampu meningkatkan pertubuhan tinggi tanaman, diameter batang, dan jumlah daun. Benih kakao yang dihasilkan dengan media sub soil memenuhi syarat untuk disalurkan.
“Always at Work”: Canadian Academic Librarian Work During COVID-19
Authors: McLay Paterson Amy , Eva Nicole
Published: December 2022

To learn about the experiences of librarians working through COVID-19, we conducted semi-structured interviews with academic librarians from across Canada on issues such as workload, collegiality, and overall satisfaction with their working conditions during the pandemic. Themes emerged around job security, workload changes (both in terms of hours worked and the type of work being done), working from home, relationships with colleagues and administrators (including the perceived speed of the institution’s pandemic response and the state of communication from or with administration), and hopes for the future. This article focuses on the semantic elements of librarian work during COVID-19 uncovered during thematic analysis, including an in-depth discussion of how academic librarians’ workload changed; a second planned article will focus on latent themes on the caring nature of library work. This study connects isolated individual situations with the overall picture of what librarians’ work looked and felt like during the COVID-19 pandemic. For library administrators, we identify the ways in which institutional support helped or hindered librarians in doing their work.
Integrating a High Temperature Fuel Cell with СО2 Capture System into Thermal Power Plant Energy Cycle
Authors: Filimonova A. A. , Chichirov A. A. , Chichirova N. D. , Kamalieva R. T.
Published: December 2022

The molten carbonate fuel cell allows for capturing, separating and concentrating CO2 as it passes through the carbonate melt from the cathode side to the anode side, while simultaneously generating electricity and heat. The article presents the technology and flow diagram of a system for capturing CO2 from flue gases of a thermal power plant in a high-temperature fuel cell on molten carbonates with subsequent conversion and utilization of gaseous combustible products in the energy cycle of a thermal power plant. The fuel cell runs on natural gas with internal reforming. After the fuel cell, the gas leaving the anode is sent to the conversion unit where, in reaction with carbon at high temperatures, combustible gases are formed that are suitable for re-combustion in the turbine. For power plants and a system for capturing and converting carbon dioxide, thermodynamic, technical and economic calculations were carried out. The efficiency of a high-temperature fuel cell is 42 %. In the baseline scenario, the net energy efficiency of the plant is 61 % while a CO2 capture ration is 80–85 %. The return of fuel gases after the conversion of carbon dioxide, taking into account their calorific value, makes it possible to additionally increase the electric power of the thermal power plant up to 20 %. With a unit cost of a fuel cell of 1300 EUR/kW and a price of natural gas of 0.04 EUR/kW, the total electricity cost of the plant is 0.074 EUR/kW. The results show that the proposed system is attractive for natural gas power generation with CO2 capture.
Layered Excavation of the Third Potash Seam with Reduced Thickness of Interlayer Ceiling
Authors: Piatrouski B. I. , Paliakou A. L. , Misnikou V. A. , Shafikau M. G.
Published: December 2022

The third potash seam of the Starobinsky deposit is mainly mined using the layered mining technology. The essence of the technology lies in the advance excavation of the 4th sylvinite layer by the uppere lava and the joint excavation of  layers 2, 2–3 and 3 by the lagging lower lava under the protection of the interlayer pack of rock salt 3–4 (ceiling) left in the goaf. The thickness of the ceiling in accordance with the requirements of the regulatory document should be at least 0.8 m. At the same time, in the mine field of the mine of the Third Mine Administration, there are areas with a ceiling thickness reduced to 0.66–0.70 m. The purpose of the author’s research was to determine the possibility of safe mining of the Third potash seam using the layered mining technology with a reduced thickness of the ceiling. In the course of a full-scale experiment, the geological structure and strength properties of the rocks of the ceiling, its stability in the bottomhole space and the intensity of loading of the bottomhole lining of the lower lavas have been studied in the paper. The research methods also included the analysis of literary sources and statistical processing of the obtained data. It has been established  that a decrease in the thickness of the ceiling by 0.10–0.14 m from the required one does not have a significant effect on its strength, while it remains stable in the near-bottom space of the lower longwalls. The main indicators of the manifestation of rock pressure in the studied lower longwalls – the rate of increase of the bottomhole lining in the stope cycles and the lowering of the roof in the bottomhole space – did not exceed the similar indicators in the longwalls with the required thickness of the ceiling.  The obtained data indicate the possibility of safemining of the Third potash seam using the layered excavation technology with the thickness of the interlayer rock salt pack 3–4 not less than 0.66 m. In this case, the bearing capacity of the bottomhole lining should be at least 550 kN/m2.
On Application of Internal Heat Sink Sources when Producing Castings from Wear-Resistant Chromium Cast Iron
Authors: Pumpur V A , Anisovich A G , Baranouski K E , Duvalau P. Yu. , Andryienka V. M.
Published: December 2022

The features of the formation of castings from chromium cast iron during casting in a combined mold are studied using internal sources of heat removal introduced into the melt. A series of experiemеnts has been carried out with wear-resistant chromium cast iron. The following macrocoolers have been used: a 0.5 mm thick silumin plate containing 3–5 % Ti; a mixture of borax and crushed ferrochrome (1–4 mm); white cast iron shot. The phase composition of the samples has been determined by X-ray diffraction analysis, and their microstructure has been also studied. Hardness testing has been carried out on specimens obtained with cast iron shot. The most effective method of using an internal source of heat removal, which has a significant effect on the cooling rate of the casting and its microstructure, has been determined. The most promising was a mixture of borax and crushed ferrochrome particles, which did not dissolve in the melt and formed zones with local structure refinement, as well as white cast iron shot, a more technological alternative to ferrochrome. The use of white cast iron shot has led to a refinement of the structure of the part “Backing sheet У3.1,1 [U3.1.1]” made of wear-resistant chromium cast iron, as well as to an increase in the hardness of its working surface by 2.6 HRC. Almost all of the shot introduced into the melt has been melted. As a result of the research, it has been revealed that the use of ferrochrome and white cast iron shot is an effective way of local structure refinement and a practical possibility of obtaining a part made of chromium cast iron with increased hardness. All this can increase the wear resistance of parts of crushing and grinding equipment.
Methodology for Calculating Water Supply for Irrigation from Reservoirs of Multifunctional Purpose (on the Example of China and Belarus
Authors: Mikhnevich E. I. , Li Ziming
Published: December 2022

Reservoirs with multifunctional purposes are the most widely used as sources of water for irrigation. In China, a large number of irrigation systems have been created using reservoirs as sources for flood prevention, irrigation, industrial and agricultural water supply. In Belarus, the Soligorsk, Lyuban, Petrovich, Pogost and other multifunctional reservoirs are 

used for irrigation.  The useful (regulating) volume of a multifunctional reservoir consists of separate components calculated for each consumer in the basis of a hydrological and feasibility study. Thus, the useful volume of water intended for irrigation should provide the required irrigation capacity and capacity of the irrigation system. When determining the useful (regulating) volume of a multifunctional reservoir, the total water requirements for various purposes (water supply, irrigation, hydropower, etc.) are calculated. For each consumer, the required design supply is assigned and the appropriate method for determining water consumption is used.  Reservoirs intended for water supply count on 95–97 % availability of runoff, and for irrigation purposes – on 75–80 % availability in zones of moderate and excessive moisture. In arid, desert and semi-desert regions of China, where lack of water in dry years can lead to large crop losses, irrigation reservoirs are expected to be 90–95 % secure. The volumes and costs of water in the reservoir for irrigation purposes must cover the needs of plants in water within the established time frame for the year of estimated availability. The paper provides a formula for determining the weighted average irrigation rate and the volume of water required for irrigation. A methodology is presented for calculating the useful volume of a reservoir intended for industrial water supply and irrigation, for which flow regulation is calculated for two supply of water consumption. A method is proposed for determining the flow rate of entrained sediments for various stages of their movement. A formula is presented for the total volume of suspended and bottom sediments entering the reservoir.
Classification of diabetic retinopathy stages based on neural networks
Authors: Lukashevich M. M. , Golub Y. I.
Published: December 2022

Diabetic retinopathy is one of the main side effects of diabetes, which causes severe effects, including blindness. The main challenge is the early diagnosis of this disease for timely and effective treatment. Diabetic retinopathy can be detected much faster and more accurately by using machine learning methods for image analyzing of the human retina. The development of methods and algorithms for the detection and classification of this disease, the automation of this process are the actual and costeffective goals.

The article focuses on the classification of the stages of diabetic retinopathy using neural networks based on human retinal images. Classification problem of diabetic retinopathy stages is described.

The architecture of deep neural networks based on VGG16 and VGG19 with the addition of custom layers is proposed. Recommendations for the selection of the size of the initial retinal images and the preprocessing stage (cropping) are given As a result of the performed experimental research. Analysis of the dataset was performed. Neural network models were trained and results were evaluated with class imbalance taken into account.