bluuebunny/crossref_metadata_2025 huggingface dataset:
Simulation Modeling of A3243g Mutations on tRNALeu (UUR) against Type 2 Diabetes Mellitus using In Silico Method
Authors: Sari Riska Puspita , Maulana Ahmad Fariz , Yusuf Muhammad , Maksum Iman P.
Published: March 2023

Mitochondrial disease is a disease that affects the genetic condition of mitochondrial DNA. One of the causes of this disease is the mutation of nucleotide bases A to G at the 3243 nucleotide position of the mtDNA tRNALeu (UUR) gene. The characteristic of the mutation A3243G mtDNA is a heteroplasmic mutation with a relatively low amount of mutant DNA. The mutants that occur can undergo a dimerization process which can reduce aminoacylation. The purpose of this study was to prove in silico the effect of mitochondrial DNA mutation A3243G tRNA leucine on type 2 diabetes mellitus. The stages of the research carried out included structural modeling of tRNALeu and Protein tRNA Synthetase using the homology method, then a native and mutant leucine tRNA model was made. The results of the modeling were assessed and validated. The next step is the dimerization process between mutant tRNAs to see the binding of structures to the tRNA. The next process is docking between the tRNA and protein models. The final step is to simulate molecular dynamics in the native tRNA model, mutants and dimer structures to see the differences in aminoacylation reactions in the three models in mitochondria. This study is expected to provide information about the effect of the A3243G mutation on the causes of type 2 diabetes in mitochondria.
Recent Progress on Promising Antimicrobial activities related to 1,3,4-thiadiazole and its derivatives
Authors: Gautam A.
Published: March 2023

It is always a demanding approach to develop novel compounds which exhibit broad spectrum of biological activities such as anticancer, antiinflammatory, antileishmanial, antibacterial, antitubercular, antiviral etc. Thiadiazoles are a kind of nitrogen–sulfur heterocycles with numerous applications in medicinal chemistry as physiologically active compounds and useful intermediates. They comprise of fascinating pharmacophores that demonstrate a wide range of pharmacological activity and will thus serve as a framework for the development of new drugs. The present study focuses on the progress achieved in the discovery of novel compounds based on 1,3,4-thiadiazole with effective biological activities.
Tajikistan’s business sector for years of independence: problems and development models
Authors: Urunov A. A. , Morozova I. M. , Zoidov K. K. , Mansurova M. G.
Published: March 2023

The purpose of the study is to develop strategic priorities for the development of the business sector of Tajikistan based on the analysis of the structure of the economy of the republic and its dynamics, as well as the use of economic and mathematical modeling of the object under study. The article identifies the main obstacles to the development of the business sector, including: inefficient functioning of management institutions and the market; insufficient development of human capital; underdeveloped industrial and social infrastructure, as well as the legal framework governing the relations of the state, business, labor, etc. Based on the use of statistical methods of analysis, in particular the method of principal components, two important strategic vectors of development of the business sector aimed at economic diversification have been identified. The first direction involves the development of industry and construction with the participation of the state in the form of public-private partnership, increasing the production of import-substituting goods based on its own resources. The second direction should be the modernization of social and industrial infrastructure, including energy. The measures aimed at improving the business climate, overcoming regional and sectoral fragmentation of the economy of Tajikistan, ensuring its sustainable and balanced development are proposed. The results of the study can be used in the development of the state strategy for the development of entrepreneurship in the Republic of Tajikistan, as well as in the process of state regulation of spatial development.
Management at the enterprise on the basis of ESG principles in the conditions of sanctions pressure
Authors: Bannikov S. A. , Tsypin A. P. , Lakirev P. G.
Published: March 2023

Market development trends that occur continuously provoke the emergence of new approaches, concepts and forms of management of business entities. Special attention should be paid to enterprises and small businesses that are the most flexible and adaptive to external and internal development factors, which is especially relevant at present for the ongoing transformational processes of the economy, market and digitalization of society. The purpose of the study is to improve the management system in small businesses through the new digital solutions for automating marketing in modern conditions. The study examined the prerequisites, prospects and practical experience of using digital solutions for automating marketing activities in the management system of small forms of entrepreneurship in Russia. The research methodology is based on scientific methods of cognition: methods of analysis and synthesis, a comparative method, and is also via the mathematical and statistical methods. The possibilities and potential of applying modern digital solutions by Russian small businesses entities in the country considered in the work will be an important direction for the development of entrepreneurship in the context of digital processes for managing the production and economic activities of domestic enterprises and companies.
Development tools of territories in Russia: an analytical review
Authors: Perevozchikova A. K.
Published: March 2023

The activity of any state is impossible without tools for the development of territories. At the moment, special economic zones, technoparks, scientific and educational centers, etc. operate on the territory of many subjects of the Russian Federation. However, problems related to territorial development remain unresolved. In this article, an analytical review of existing tools for the development of territories (herein-after – IRT) in the Russian Federation is carried out, their significance is shown, the history of their appearance is touched upon. The purpose of the study is to identify problems related to the tools of territorial development in Russia and to develop proposals for their solution. The objectives of this work are next: to conduct a comparative characterization of territorial development tools by 7 indicators, to calculate the percentage of IRT in each macroregion and district, to study foreign experience in implementing tools on the example of the People’s Republic of China, to develop proposals for improving IRT in Russia. The results of the study can be useful for seeing the overall picture of existing tools for the development of territories, for eliminating problems and developing measures to improve the operation of these tools or the emergence of new ones.
Interpersonal conflict, values, strategies for overcoming stress situations of students before and after the start of a special military operation
Authors: Yashchenko E. F.
Published: March 2023

The article provides an overview the study of the problem of intrapersonal conflict, values  and strategies for overcoming stressful situations in the modern literature. The results of the author’s research identifying the psychological characteristics of students of a transport university before and after the start of a special military operation are presented. Using methods to identify the level of internal conflict A.I. Shipilov, “Strategies for overcoming stress situations SACS” S. Hobfall in the adaptation of N.E. Vodopyanova, E.S. Starchenkova; «The level of the ratio of “value” and “accessibility” in various life spheres» by E.B. Fantalova, «Freiburg multifactorial personal questionnaire FPI» by I. Farenberg, H. Zarg and R. Gampel in the adaptation of A.A. Krylov and T.I. Ronginskaya described and analyzed psychological portraits of students before the start of a special military operation and after its beginning. Before the start of a special military operation, students’ psychological characteristics are: confrontation of claims with their real potential, anxiety, entering into social contact to solve problematic situations, the value of real friends, focus on current events and male-type behavior, the desire to achieve the goals set, self-confidence, seeking social support, love, courage, and the pursuit of public recognition. The psychological portrait of students after the start of a special military operation includes a reduced critical attitude towards themselves, reduced anxiety, a decrease in the value of friends, greater aggressiveness in defending their interests, a decrease in social contacts, moral and adaptation conflict, conflict of motivation, obligation, lack of assertive actions, internal tension.
Hotel and business in modern France and Germany
Authors: Botavina E. B. , Kaydalova Т. A.
Published: March 2023

This article discusses the historical prerequisites for the emergence of tourism in Europe and analyzes its historically determined features. The authors show the characteristic national aspects of the tourism industry in France and Germany. The historical and cultural background and prospects of European tourism are also studied against the backdrop of political, economic and cultural processes in modern Europe. The article also shows the main elements of the tourism business in the countries under consideration, including their hotel component. Travel promotes cultural exchange and education, enhances the quality of life, strengthens health and supports the cohesion of people. The COVID-19 pandemic has dramatically changed people’s desire to travel. Before the pandemic, the German tourism industry planned to raise the profile of this sector of the economy, since 4 % of the value added in Germany is directly related to tourism. The economics of the tourism industry also has an impact on other sectors of the economy such as the mobility sector. Tourism is a key driver of regional development in many regions of the world, including Germany and France. The overall goal may be to use this influence wisely and create additional value for tourists and for the local population.
Development of world oil refining in the context of the coronavirus pandemic
Authors: Solomonov A. P.
Published: March 2023

The article is devoted to the analysis of the changes that are taking place in the global oil refining industry under the influence of the current recession in the world economy. Despite the recovery of the global economy after the pandemic, nevertheless, the risks of an intensification of the geopolitical conflict have led to an unprecedentedly difficult situation in the energy markets. Newly emerging restrictions in international trade, including in the form of sanctions, have led to risks of unstable development of the oil refining industry. In turn, the uncertainty in the dynamics of world oil prices, as shown in the article, as well as the trends in the transition to a low-carbon economy, make it difficult to predict the development of the oil and gas industry, including oil refining. The serious changes observed in the structure of fuel production and consumption in the United States will have a significant impact on the development of the industry under study in the future, where there is already a shortage of refining capacity and unstable dynamics of prices for petroleum products. The introduction of additional capacities in the world oil refining, as noted in the article, will not have a significant positive impact on the oil product markets in the short term.
Persilylation of Ferrocene: The Ultimate Discipline in Sterically Overcrowded Metal Complexes
Authors: Rupf Susanne Margot , Sievers Robin , Riemann Paulin Sylvia , Reimann Marc , Kaupp Martin , Fasting Carlo , Malischewski Moritz
Published: March 2023

We report the preparation and structural characterization of the first persilylated metallocene via metalation of decabromoferrocene. Whereas Grignard conditions turned to be insufficient due to steric and electronic effects of the silyl groups causing a decreased nucleophilicity of the metalated intermediates, stepwise lithium-halogen exchange yields complex mixtures of polysilylated compounds FeC10DMSnH10−n (n = 10, 9, 8) including the targeted decasilylated ferrocene. Those mixtures were successfully separated allowing a systematic study on silylation effects on ferrocene by XRD, CV, NMR and UV/vis spectroscopy supported by DFT calculations. The findings were used to develop a high-yielding and preparative simple way to generate a perfunctionalized and overcrowded ferrocene, FeC10DMS8Me2.
Ambient catalyst-free nitrogen fixation with water dimer
Authors: Zhang Xiaoping , Huang Liping , Li Jingling , Yang Wenwen , Chingin Konstantin , Balabin Roman , Wang Jingjing , Zhang Xinglei , Zhu Weifeng , Su Rui , Huang Keke , Feng Shouhua , Chen Huanwen
Published: March 2023

The growth and sustainable development of humanity is heavily dependent upon the process of fixing nitrogen (N2) to ammonia (NH3). However, the currently adopted methods are associated with severe environmental hazards and tremendous energy costs, which limit their sustainability and profitability. Herein we discovered a catalyst-free disproportionation reaction of N2 by water dimer radical cation, (H2O)2+, which occurs under mild ambient conditions via distinctive HONH-HNOH+ intermediate to yield economically valuable nitroxyl (HNO) and hydroxylamine (NH2OH) products, in alternative to NH3. Calculations suggest that the reaction is prompted by the coordination of electronically excited N2 with (H2O)2+ in its two-center-three-electron (2c-3e) configuration. The ambient one-step fixation of N2 into HNO and NH2OH with high selectivity offers great profitability and total avoidance of polluting emissions, such as CO2 or NOy, thus giving an entirely new look and perspectives to the problem of green N2 fixation.
Concentrated zwitterion interfaces for the selective promotion of ionic electrocatalysis
Authors: Wu Jianxiang , Chen Yuxin , Hao Yaming , Wang Shaoyan , Wang Ran , Du Wei , Cha Shuangshuang , Yang Xuejing , Yang Qiang , Lian Cheng , Liu Honglai , Gong Ming
Published: March 2023

The electrode/electrolyte interfacial structure is a seminal component that governs the activity of electrochemical reactions. Concentrated interfaces can typically retard the local electrocatalytic reactions to extend the voltage window for high-voltage batteries, whereas in this study we demonstrated that a dense interface constituting of zwitterionic betaine could selectively promote the electrocatalytic transformation of anionic species, especially electrocatalytic hydroxide oxidation in alkaline water splitting. Under concentrated betaines, the state-of-the-art oxygen evolution reaction (OER) electrocatalysts of nickel and nickel-iron oxyhydroxide exhibited overpotential gains of 138 mV and 97 mV, corresponding to two orders of magnitude higher current densities. The activity increment was stemmed from both the static dehydration effect that the hygroscopic betaine rips off the anionic hydration shell to promote its downstream reaction and the dynamic double layer effect that the ultra-dense betaine layer accelerates the accumulation of underhydrated anions in the inner Helmholtz plane. This enhancement is highly specific to ions for enabling the selective ionic transformation in complex media. The concentrated betaine interface effectively segregates the reactive zones to improve the durability of water electrolysis in aniline-containing electrolytes by at least an order of magnitude, opening up new possibilities for next-generation unconventional water splitting.
Understanding Molecular Aggregation of Ligand-protected Atomically-Precise Metal Nanoclusters
Authors: Tiwari Vikas , Karmakar Dr. Tarak
Published: March 2023

Atomically precise ligand-protected nanoclusters (MPC) have emerged as an important class of molecules due to their unique structural features and diverse potential applications, including nano-electronics, bio-imaging, as sensors and drug carriers. Understanding the atomistic details of their intermolecular interaction is of paramount interest for designing, synthesizing, and system-specific applications. Crystal structures of various MPCs provide details related to molecular packing and intermolecular interactions. While these experiments reveal macroscopic, mostly static properties, they are often limited by the spatial and temporal resolutions in delineating the microscopic dynamical details. Here we apply molecular dynamics and enhanced sampling simulations to study the aggregation of Au25(pMBA)18 MPCs in the solution phase. The MPCs interact via both hydrogen bonds and π-stacks between the aromatic ligands to form stable dimers, oligomers, and periodic crystals. The free energy profiles obtained from enhanced sampling simulations of dimerization reveal a pivotal role of the protonated states of the ligands as well as the solvation shell in mediating the molecular aggregation process in solution. In the solid phase, the MPCs’ ligands have suppressed conformational flexibility owing to many facile intermolecular hydrogen bonds and π- stacks. Our work provides unprecedented molecular-level details of the aggregation process and conformational dynamics of MPCs ligands in the solution and crystalline phases, which will help rational design of new MPCs with specific properties.
Hirshfeld atom refinement of metal-organic frameworks for accurate positioning of hydrogen atoms and disorder analysis
Authors: Xu Yizhi , Chodkiewicz Michał L. , Trzybiński Damian , Brekalo Ivana , Topić Filip , Wożniak Krzysztof , Arhangelskis Mihails
Published: March 2023

The application of Hirshfeld atom refinement (HAR) fragmentation method is demonstrated for the refinement of metal-organic framework (MOF) crystal structures. The presented method enables anisotropic refinement of imidazolate hydrogen atoms, as well as complex analysis of solvent disorder within MOF pores. The data used were derived from standard resolution in-house single crystal X-ray diffraction measurements, demonstrating that high quality structural analysis of MOFs no longer requires access to neutron or synchrotron facilities.
Photosensitized Dioxygen Enables Intermolecular Cyclopropanation of Alkenes Directly with Active Methylene Compounds
Authors: P. Poudel Dhruba , Pokhrel Amrit , Tak Raj Kumar , Majji Shankar , Giri Ramesh
Published: March 2023

Cyclopropane, a versatile synthetic intermediate, is forged as a key structural feature in many preclinical, clinical and commercial drugs, and occur as a skeletal motif in numerous natural products. The most prolific technique for its synthesis is the metal-catalyzed reaction of an alkene with a diazoalkane, a highly energetic, reactive and explosive reagent requiring stringent safety precautions. The expedient construction of cyclopropyl ring on alkenes with convenient and innocuous reagents under nonhazardous conditions remains an ongoing challenge. Herein, we report a simple photoredox-catalyzed intermolecular cyclopropanation of unactivated alkenes with a diverse set of active methylene compounds that demonstrates striking conceptual and practical synthetic advances over the known methods. The reaction proceeds with a photoredox catalyst (PC*) excited under a blue LED light in air/O2 and neutral reaction conditions in the presence of catalytic amounts of iodine, either in the form of added molecular I2 or generated in situ from alkyl iodides. . The reaction demonstrates a remarkably broad scope on the applicability of 19 different active methylene compounds in 5 different clusters from the standpoint of synthetic tolerability, and tolerates a wide range of functional groups. Moreover, the reaction is also amenable for the cyclopropanation of alkenes in complex molecular architectures, pharmaceuticals and natural products. Mechanistic investigation through the isolation of a series of intermediate products, probes, control experiments, UV-Vis and fluorescence studies indicate that photosensitized dioxygen plays a vital role in the generation of carbon-centered radicals for both the addition of active methylene compounds to alkenes and ring closure, and catalytically generated iodine recycles the PC.
Studying Kinetics of a Surface Reaction using Elastocapillary Effect
Authors: Singh Nitish , Kumar Ajeet , Ghatak Animangsu
Published: March 2023

Hypothesis : When a liquid is inserted inside a microfluidic channel, embedded within a soft elastomeric layer, e.g. poly(dimethylsiloxane) (PDMS), the thin wall of the channel deforms, due to change in solid-liquid interfacial energy. This phenomenon is known as Elastocapillary effect. The evolution of a new species at this interface too alters the interfacial energy and consequently the extent of deformation. Hence, it should be possible to monitor dynamics of physical and chemical events occurring near to the solid-liquid interface by measuring this deformation by a suitable method, e.g., optical profilometer. Experiments: Aqueous solution of a metal salt inserted into these channels reacts with Silicon-hydride present in PDMS, yielding metallic nanoparticles at the channel surface. The kinetics of this reaction was captured in real time, by measuring the wall deformation. Similarly, physical adsorption of a protein: Bovine Serum Albumin, on PDMS surface too was monitored. Finding : The rate of change in deformation can be related to rate of these processes to extract the respective reaction rate constant. These results show that Elastocapillary effect can be a viable analytical tool for in-situ monitoring of many physical and chemical processes for which, the reaction site is inaccessible to conventional analytical methods.
Conceptual fundamentals of audit in the management of foreign economic activity
Authors: Nesterenko O. , Kononov I.
Published: March 2023

The article substantiates that the most reliable and effective mechanism for timely detection of various violations and manipulations in the accounting system of business entities that carry out foreign trade operations is a well-established system of audit of foreign economic activity. The work is devoted to a comprehensive study of the factors influencing the audit of foreign economic activity and highlighting its principles, rules and restrictions for the development of a comprehensive program of audit of foreign economic transactions and recommendations for improving its individual areas. Based on the results of the study of the peculiarities of foreign economic activity, the article groups the factors that affect the audit of foreign trade transactions. The most important ones are: participation in foreign trade operations of non-residents; duration of foreign trade operations; foreign currency settlements; cost centers; the global COVID-19 pandemic; features of "customs audit"; the need to form a CbC report; tax risk assessment. It is proved that the basis of the methodology and organization of the audit of foreign economic activity is its defining principles. Having studied the main provisions of regulations and the basic principles of auditing, highlighted in the scientific literature, they were adapted to the peculiarities of the audit of foreign economic activity. The principles of foreign economic activity audit are grouped into 8 groups: general, ethical, regulatory, organizational, methodological, professional, economic and technical. The general principles of foreign economic activity audit are decisive for audits of any areas of accounting and financial reporting. Adherence to ethical auditing principles is a determining factor in maintaining the reputation of any audit firm. At each stage of the audit, the auditor must adhere to regulatory principles, namely: the application of standards, self-regulation of the profession, compliance with the law, the contractual basis of the relationship. It is proved that at the planning stage the organizational principles of FEA audit are of special importance. Adherence to the methodological principles of the FEA audit allows the auditor to adapt the tools of the sample survey to the specifics of foreign trade operations. Adherence to professional principles will allow you to achieve the highest standards of professionalism and the best results of the audit. Economic principles determine the financial, material and other constraints in the relationship between the subject of foreign economic activity and the audit firm. In terms of information science, the audit requires appropriate information support and compliance with technical principles. The researched conceptual principles of FEA audit should be constantly taken into account during the development of the plan, comprehensive program, tests of audit of foreign economic operations and recommendations for improving its individual areas.
Analysis of the agriculture sector of Ukraine during the war
Authors: Nehrey M. , Trofimtseva O.
Published: March 2023

Russia's war against Ukraine has significantly increased food security risks and caused disruptions in agricultural production, supply chains, and trade, leading to unprecedented levels of global food and fertilizer prices. The current situation in the world agricultural markets by the middle of 2022 has shown the importance of the Ukrainian agricultural sector for the global market of agricultural products in general and the economy of the European Union, in particular. The article examines the place of the Ukrainian agriculture sector in the world agricultural market. The structure of export and import of agricultural products was analyzed. The dynamics of agrarian exports of Ukraine have been studied and the main reasons for its negative change have been determined. It has been established that the main problems during the war for the Ukrainian agrarian sector were: the occupation of Ukrainian territories, breaking of logistic chains inside and outside the country, reduction of the volume of the domestic market, and decreasing purchasing power of the Ukrainian population, insufficient resources for agricultural production, problems with labor force and theft of Ukrainian agricultural machinery and products. The domestic agricultural sector needs support from both the state and foreign funds, organizations, and countries. The Ukrainian government created several programs to support agricultural producers during military operations. In the tax, the support took place at the expense of VAT reduction, payment of taxes for FLP of 1 and 2 groups at will, payment of ERU by the state for the mobilized workers, cancellation of excise tax on oil products, etc. State support of the agrarian sector in the financial sphere is realized by providing access to cheap credits and the opening of new grant programs. Deregulation processes also took place at the state level: cancellation of business inspections, the introduction of the declarative system of business operation, and simplification of customs procedures. The prospects of the agricultural sector in the post-war economy have been studied. In particular, it was found that the key factor of agrarian sector development is people. Important for the recovery of the agricultural sector is the development of agricultural education and science, creation of sustainable chains in the regions, integration with competitive products into world markets, adaptation to the climate, sustainable and ecological agriculture, technological development, and digitalization of the agricultural sector.
Models for evaluation of resistance of macroeconomic systems to exogenic "shocks"
Authors: Polianskyi V.
Published: March 2023

The article proposes an approach to the development of models for assessing the resilience of macroeconomic systems to the effects of exogenous shocks with an emphasis on the study of assessing the resilience of diagnostic classes. The relevance of the chosen research topic is explained by the fact that the development of the world economy takes place in the context of increasing globalization processes. In this economic environment, both positive and negative effects of these processes are formed. Due to the inability to control the impact of external destabilizing factors, there is a problem of assessing the resilience of the economy to "shocks" elements. Consideration of thematic, literature sources allowed to confirm the importance of the stated research and insufficient elaboration of the issues of assessing the stability of cluster formations. The aim of the article is to develop classification models that, based on hierarchical agglomerative methods of cluster analysis, iterative methods of cluster analysis, Kohonen neural networks, allow to analyze the stability of macroeconomic systems cluster formations, analyze the migration of elements from cluster to cluster systems to the action of exogenous shocks. The main objectives of the study were to develop models for classifying countries according to the level of resistance to exogenous "shocks" based on agglomeration methods of cluster analysis, iterative methods of cluster analysis, Kohonen neural networks; assessment of the classification quality, justification of the choice of the final breakdown; analysis of migration from cluster to cluster, assessment of structural dynamics. The obtained results allowed us to conclude that Kohonen neural networks provide an opportunity to obtain a better and more economically interpreted classification taking into account the models of crisis development in the element countries prone to migration from cluster to cluster. Analysis of the structural dynamics of clusters in the pre-crisis, crisis, post-crisis period shows a decrease in global stability, as there is a high proportion of countries with medium and low resistance to exogenous "shocks", as well as migration of many elements to the lower cluster in the post-crisis period. The analysis of cluster characteristics showed that for countries with a low level of resistance to exogenous "shocks" the critical subsystem is the financial security subsystem, which requires the transformation of protection mechanisms for financial "contagion". The obtained results can be used in systems of proactive crisis management.
Cluster analysis of tax indicators in Europien countries
Authors: Merkulova T. , Nikolaeva O.
Published: March 2023

Global trends indicate that at the current stage of European countries’ integration, the processes of unification of taxation and tax administration, and the convergence and harmonization of tax systems are taking place. Therefore, for thorough studying of these phenomena, it is important to classify countries according to the parameters of fiscal systems and tax policy. Our analysis of the tax indicators of European countries on the main groups of taxes according to the methodology of ESA 2010 develops the research in this field. The analysis was carried out by clustering methods in order to identify common and different features in the tax systems of European countries. This study covers 30 European countries for the periods 2018 and 2020. This paper focuses on the analysis of three main indicators of tax revenues. According to the ESA 2010 methodology, these are taxes on production and imports (D.2), current taxes on income and property (D.5), and net social contributions (D.61). Cluster analysis of the tax-to-GDP ratio was performed using a hierarchical agglomerative method and the method of k-means using software R Studio and STATISTICA 7.0. As a result, 5 clusters have been obtained. They are characterized by the following average values: 1) the cluster with the lowest total tax-to-GDP ratio, where income taxes predominate; 2) the cluster with the highest total tax-to-GDP ratio, high tax ratio on income and property, and low social contributions; 3) the cluster with an average tax-to-GDP ratio and the largest social contributions; 4) the cluster with an average tax-to-GDP ratio and the predominance of taxes on production and import; 5) countries, where all analyzed tax groups have a roughly equal ratio to GDP. The classification carried out for 2020 data revealed some insignificant changes in the clusters’ composition. These changes can be considered as a result of the tax policy to counteract the effects of the pandemic.
Test Deposit, Please Ignore
Authors:   , Atkins Ori
Published: March 2023

Testing
Filicinae Taxonomic Diversity in the Tourism Area of Tretes Waterfall Wonosalam Kabupaten Jombang
Authors: Nuraini Afifah Mei , Wisanti Wisanti
Published: March 2023

Filicinae is a fern with the most species members. The Filicinae includes approximately 170 genera and 7000 species. Filicinae grows in wet, humid, and shady environmental conditions, like waterfall areas with an altitude of 1100-1300 meters above sea level (m a s l). The study aimed to determine the taxonomic diversity of the Filicinae in the Tretes Wonosalam Waterfall Tourism area. Taxonomic diversity is very important in tourism areas because it prevents species extinction due to the destruction of the habitat, they live in. This was descriptive research with exploration and observation techniques used purposive sampling methods based on altitude. The results of the study were stated in the form of an inventory list of species and families of each station. Data gained of species diversity were analyzed using taxonomic diversity with the formula (∆) and dominance diversity with the formula (∆*). Exploration results found 37 species from 12 families composed of 10 species from 7 families at station 1; 12 species from 6 families at station 2; 14 species from 7 families at station 3; and 22 species from 12 families at station 4. The highest taxonomic diversity (∆) was station 4 with 106.8 while the lowest for station 1 was 25.63. Dominance diversity (∆*) at all stations in this study was in the medium category. The highest family found in the study was Tectariaceae with six species.
Aproximación a la eAdministración
Authors: Badules Iglesias Darío
Published: March 2023

Este documento forma parte de la actividad «Aproximación a la eAdministración», organizada en el marco del Proyecto de innovación docente PIIDUZ_2023_1_898 (con financiación del Vicerrectorado de Política Académica) y celebrada los días 21 y 23 de febrero y 7 de marzo de 2023 en la Facultad de Derecho de la Universidad de Zaragoza, cuyo coordinador ha sido el prof. Dr. Darío Badules Iglesias (Área de Derecho Administrativo, Universidad de Zaragoza). Con su publicación en abierto y en línea, como material docente, se pretende dar a conocer esta experiencia de innovación que ha tenido como propósito fundamental una primera toma de contacto con la Administración electrónica por parte del estudiantado de distintos grados de esta Universidad. Para ello, se ha propuesto una serie de conferencias y la realización de un caso práctico consistente en la obtención del certificado digital de la FNMT y la realización de una solicitud de transparencia a través de un registro electrónico. Los materiales de tales conferencias y de dicha práctica constituyen el contenido de esta publicación, en su 2.ª edición.
MEMBANGKITKAN SEMANGAT DAN KREATIF DALAM BERWIRAUSAHA DENGAN MEMANFAATKAN TEKNOLOGI DIGITAL DI DUSUN KLORON RT.04 KELURAHAN SEGOROYOSO PLERET BANTUL D.I.YOGYAKARTA
Authors: Herlambang Susatyo , Subandi Subandi , Fahlefi Wilis , Mursyid Mursyid
Published: March 2023

Pengabdian kepada masyarat ini bertujuan untuk membahas mengenai kewirausahan dengan konsep dan ide baru serta peluang dan tantangan dalam pemasaran menggunakan teknologi digital.Setelah dilakukan pembahasan didapat bahwa pemasaran digital memiliki hubungan yang sangat erat dengan kewirausahaan, dimana kedua item tersebut memiliki target yang sama. Pemasaran digital merupakan bagian dari aktifitas kewirausahaan. Pemasaran digital memiliki peluang yang sangat besar dalam pengembangan dunia usaha mulai saat ini hingga dimasa depan dimana target pasar sudah bertransformasi ke platform digital. Sedangkan tantangan yang harus dihadapi oleh dunia usaha ketika melaksanakan pemasaran digital yaitu kesiapan dari segi sumber daya manusia dan sumber daya keuangan dalam mendukung kegiatan pemasaran secara digital
Электронные и механические свойства эндоэдральных композитов углеродных нанотрубок с иодидом калия: DFT моделирование
Authors: Анучин Н.М. , Еняшин А.Н.
Published: March 2023

Методом функционала электронной плотности изучены структура, продольная упругость и электронные свойства эндоэдральных композитов одностенных углеродных нанотрубок с одномерным кристаллом KI – KI@CNT. Обнаружено, что электронные свойства бездефектных композитов KI@CNT определяются электронными свойствами родительской нанотрубки, а введение вакансий K или I стимулирует перенос заряда между инкапсулятом и нанотрубкой, сопровождающееся ростом концентрации электронных или дырочных носителей заряда в нанотрубке. Модули Юнга KI@CNT оказываются на 20-50% ниже, чем у родительских нанотрубок, и при этом слабо зависят как от типа хиральности, так и наличия атомных вакансий в инкапсуляте KI. Полученные результаты доказывают, что углеродные нанотрубки в составе композитов с галогенидами действительно сохраняют достаточно высокую для практического использования упругость и могут использоваться в качестве прочных наноконтейнеров и нанореакторов.
The Transformation of Critical Land Governance Based on the Islamic Spirituality Values
Authors: Muslih Moh , Aenurofik Aenurofik
Published: March 2023

This study aims to transform critical land governance based on Islamic spiritual values contained in the community's economic importance and environmental conservation values. This study used the Participatory Action Research (PAR) method, which was taken through 2 stages, each consisting of 4 procedures. The research involved the community in Dawuhan Village, Sirampog District, Brebes Regency, who worked together to solve problems regarding critical land. The research results show that the management of fundamental land transformation is carried out through coffee planting. This transformation is based on environmental conservation values and community economic values. The minimization of critical land status in Dawuhan village shows the importance of environmental conservation. In contrast, the economic value of the people in Dawuhan village has increased sharply after the transformation of management. The minimization of the status of critical land in Dawuhan Village is known from the increase in land planted with thorny trees (pine, coffee, and so on) from 20% to 30%. The increase in the economic value of the people in Dawuhan Village is shown by the increase in coffee yields from 1 ton to 5 tons. The growth around perennials and the economy was obtained after the implementation of the PAR conducted in this study.
Facing Religious Contemporary Challenges: Redefining the Partnership of Islamic Higher Education and Islamic Religious Instructors in Mainstreaming Religious Moderation
Authors: Hefni Wildani , Ahmadi Rizqa
Published: March 2023

This article examines the partnership of Islamic higher education with Islamic religious instructors in mainstreaming religious moderation values. This partnership is conducted to face some challenges in contemporary religious understanding. Religious moderation values, such as tolerance, justice, balance, and humanism, become individual and institutional needs. The type of this research is qualitative research using library-based analysis, which obtains the information from news documents and existing partnership documents. The object of this study is the State Islamic University (UIN) Kiai Haji Achmad Siddiq Jember and Islamic Religious Instructors in the Jember regency. This study concludes that the partnership between two institutions supports the mainstreaming of religious moderation values in several forms, including early mapping of religious conflicts, formulating strategies for resolving religious phenomena, and using digital media. These two institutions agreed on several points outlined in their “declaration.” The functions of religious instructors include educative, consultative, informative, and motivational, and Islamic higher education's role is to become a bridge to assist and provide religious education to the community based on religious moderation values, such as tolerance, fairness, and egalitarianism.
An Evaluation of Women and the Ideological Interest of the Integrated Islamic School
Authors: Shalihin Nurus , Yusuf M , Ulil Amri Mufti
Published: March 2023

This study aims to analyze the phenomenon of female teachers as mediators in the ideological value transmission by Integrated Islamic Schools in Early Childhood Education institutions. Data were collected using two different techniques, namely questionnaires and in-depth interviews. A total of 43 respondents were selected as the study samples from 11 Integrated Islamic Schools in Early Childhood Education. The result showed that the Integrated Islamic Schools had taken advantage of the gender equality issue promoted by globalization in placing women as educational actors. It has also exploited the conceptions and stereotypes of women as actors with sufficient potential to deal with children in Early Childhood Education institutions. Conclusively, the Integrated Islamic School has empowered women to serve as strategic mediators who can be exploited as a catalyst for instilling ideological values through meeting spaces in each Integrated Islamic School.
Understanding The Potential Risks Regarding Employment in The Oil and Gas Industry [Upstream]
Authors: Ahmad C.
Published: March 2023

In this article, we are trying to focus on employment matter as one of the big issues in the Oil and Gas industry Upstream Sector, such a topic that is often underestimated even though it has a significant impact on upstream activities. Human resources are a key factor in driving the industry forward. Based on the article Pratama Guitarra from CNBC Indonesia (Guitarra, Pratama. “SKK Migas Bidik 12 Proyek dan 19,6 Triliun di 2022”) stated that for every US$ 1 billion invested in the upstream oil and gas sector it will absorb approximately 100 thousand workers. Naturally, such conditions above may cause potential disputes that might arise due to the friction of interest between the employee and the employers. Hence, the Indonesian Government has stipulated several Laws regarding this matter, such as Law No. 13/2013 regarding Employment, which has been partially modified by Article 81 Law No. 11/2020 2020 regarding Job Creation along with several implementation regulations regarding employment. Need to be noted, that: these amendments have made a significant change in the Employment regulations. Even more, on 25 November 2021 the Constitutional Court through its decision No. 91/PUU-XV/III/2020 which in essence stipulated that Law No. 11/2020 be conditionally in-constitutional. That is a condition that simply could cause more confusion, both on the part of the employee and employers in implementing the employment regulation in their company. Therefore, in this article, the writer would conduct a comprehensive study of the applicable Laws and Regulations regarding employment along with the reality on the ground to provide a comprehensive overview of the potential risks regarding Employment in the upstream Oil and Gas Industry regarding Job Creation Laws, for example about: (i) compensation for the employee on a contract basis; (ii) termination reason or reasons; (iii) Lack of implementation of the prevailing regulation in the internal policy of the company. It is believed that this article will give significant insights into the practical application of the Employment Regulations in the upstream Oil and Gas industry.
Lessons Learned From Carbon Capture and Storage Projects in South East Asian Depleted Reservoirs
Authors: Yon D.Y.L
Published: March 2023

The aging of oil and gas reservoirs in South East Asia (SEA) presents opportunities for their repurposing for use in Carbon Capture and Storage (CCS); to our knowledge, there are currently no operational CCS projects in SEA. Multiple CCS projects have been announced recently in SEA, targeting storage in depleted reservoirs. In this paper, we share technical lessons learned while working on CCS projects in SEA. The paper first provides an overview of engineering factors that should be considered for the transport and storage of CO2 in depleted reservoirs. We will then focus our discussion on four of the challenges faced while assessing these factors. Firstly, we highlight the impact that regional geothermal gradients have on storage capacity; particularly, we show that higher geothermal gradients due to the proximity to the ring of fire reduces storage capacity in reservoirs in SEA. Secondly, challenges surrounding the dynamic modelling of Carbon Dioxide (CO2) injection into depleted reservoirs will be discussed; the large difference between the composition of the injected gas and native reservoir gas necessitates the use of compositional dynamic models. In this regard, many depleted reservoirs either do not have dynamic models at all, or only have black oil models; both circumstances will require significant time and resource investments to construct compositional dynamic models. Next, we will discuss the reusability of regional gas pipelines for CCS projects; we discuss factors that may prevent a pipeline from being convertible for CO2 transport. Finally, we will discuss the challenge of managing CO2 phase transitions at injection sites. The phase transitions are a result of CO2 being transported at high pressures and then injected into depleted reservoirs with low pressures and high temperatures. We argue in the paper that the phase transition should be engineered to occur in the reservoir to minimize facilities costs.
Leading Edge of Well Abandonment and Workover Method Revolution for Sidetrack Drilling Preparation in Mahakam
Authors: Yandra W. G.A.
Published: March 2023

Mahakam is an oil and gas field concession area managed by Pertamina Hulu Mahakam which has production for more than 50 years and has been classified as a brownfield because of the marginal reserved and declining production profile. In order to increase the economic value of the drilling process, sidetrack drilling has been introduced into Mahakam area to utilize non-producing well slot in the existing platform instead of building a new one. To carry out sidetrack drilling, the well abandonment and workover operation are done to prepare the old well slots. Revolution of method is initiated to conquer challenges to the more economical operation. Use of rigless unit using hydraulic workover unit and well intervention remote unit, plug and cut wireline technology, cement plug through existing tubing completion, cut and pull tubing / casing using fishing tool, improve well integrity by cementing through annulus casing, wireline gauge ring for checking casing clearance and other initiatives have been introduced to ensure the success of the sidetrack drilling preparation operation. The positive impact of the method is shown by the last milestone on the well abandonment and workover operation delivery within 3.5 days using rigless unit. It breaks the fastest record in Offshore Mahakam Field operation with 90% efficiency in well duration and cost. This achievement has become the leading edge innovation which brings significant economic value for the future development in Mahakam.