bluuebunny/crossref_metadata_2025 huggingface dataset:
A case study of the Samotlor field to analyze corrosive damage of casing strings in production wells
Authors: Sinitsyna T. I. , Gilaev R. G. , Nabiullin A. Sh. , Popovich M. I. , Kurbanov Ya. M.
Published: July 2024

The principal prerequisites for this study include a reduction in the number of operating oil wells at the Samotlor Field due to the corrosive destruction of production strings, which has resulted in a loss of oil recoveries during workovers and well integrity restoration efforts. The volume of such destruction over the past five years of field development has exceeded one thousand wells.

   The main focus of the study is to identify all the influencing factors that catalyze the wear of the production string metal, as well as to develop methods for protecting wells, taking into account the identified source of the causes.

   The tasks set in this article are solved by applying statistical analysis, geological analysis, and field analysis of well data. The data pertaining to the production history were collated and validated, while the statistical training sample was constructed in Microsoft Excel. The geological and field analysis of well data was conducted using the RN-KIN software package. The corrosion rate was simulated in Microsoft Excel using the VBA programming language. The study represents a comprehensive analysis of the production well stock, which has enabled the root causes of the emergence and development of corrosion processes to be identified. The laboratory studies resulted in numerical corrosion rates and a mathematical model that permits the consideration of the identified factors in order to assess the risks and corrosion rates in the wells. The practical relevance of the study lies in the methods developed and introduced to protect production strings from corrosion and erosion effects in the production well stock.
Modern approaches to the justification of zones with different saturation
Authors: Rozhitsin Yu. A. , Belkina V. A.
Published: July 2024

Most of the deposits that that have been developed in Western Siberia over the past 10 to 15 years are characterized by a complex and highly complex structure with small sizes. The effective development of such deposits is possible only on the basis of adequate and sufficiently accurate models. The construction of detailed and high-precision models of complex deposits is impossible without a comprehensive analysis of all types of geological and geophysical information, and in some cases, the physical and chemical properties of reservoir fluids.

   The aim of the study is to clarify the geological structure of the PK19 2 formation of the Beregovoye field through a comprehensive analysis.

   The use of an expanded well logging, predictive maps of effective thicknesses and sandiness according to seismic data and the justification of an increased set of regional and local benchmarks made it possible to clarify the area of hydrocarbon distribution and show that the deposit is not a single one, but consists of three hydrodynamically separated deposits. The lithological differentiation of the deposits is indirectly confirmed by a significant difference in fluid contacts. The discrepancy between the contacts of the northern and southern deposits is 6 m. An analysis of the physico-chemical properties of reservoir fluids has shown that the northern and southern deposits are saturated with condensates of different types and significantly different densities. The results of the work have enabled the following conclusions to be drawn: firstly, the structure of the PK19 2 formation deposits of the Beregovoye field has been clarified and detailed; secondly, the reserves have been clarified; and thirdly, it has been demonstrated that the condensate density of the northern deposit is such that setting condensate reserves on the state balance and their extraction from this deposit are economically impractical.
Ppd-D1a allele donors for spring soft wheat for earliness
Authors: Lepekhov S. B.
Published: July 2024

The photoperiod-insensitive allele Ppd-D1a is widespread among spring soft wheat of subequatorial and equatorial countries. This allele is practically not found in Russian spring soft wheat cultivars. The allele Ppd-D1a decrease period from seedling to heading in soft wheat and can be used in breeding for earliness. Fourty cultivars with the allele Ppd-D1a have been studied in the field conditions for yield in 2021 and 2022. Eleven cultivars (AC Vista, AC Taber, Buck Fogon, Cunningham, DL-803-2, Odeta, Tigre, Sasia, Sunstar, Sunstate and Zingmai), which have yield at the level of standards, were selected among them. Using PCR-analysis the presence of the Ppd-D1a allele was confirmed for all 11 cultivars. Local checks have the Ppd-D1b allele. Above mentioned 11 cultivars were tested in field condition in 2023. Cultivars were estimated for interval from seedling to heading, plant height, spikelet number per spike, kernel number per spike, thousand kernel weight, grain weight per main spike and tiller spikes, harvest index, yield, protein and gluten content in grain. Ten out of 11 cultivars had significantly lower yield than standards (from -23 to 58 %). Almost all cultivars were characterized with significantly lower plant height (from -16 to -43 cm), lower thousand kernel weight (from -3.8 to -13.5 g), higher harvest index (to +8.0 percent point) and lower grain weight per main spike (from -0.02 to -0.52 g), than standards. Sunstar cultivar, which had yield at the level of standard cultivar Altaiskaya 70, is recommended as a donor of the Ppd-D1a allele in spring soft wheat breeding for earliness. Cluster analysis carried out on the basis of the considered traits classified cultivars with the Ppd-D1a and Ppd-D1b alleles in two different groups.
Genetic diversity of the population of aboriginal yakut cattle by microsatellite locuses
Authors: Vladimirov L. N. , Machakhtyrova V. A. , Machakhtyrov G. N. , Shadrina Y. L. , Zarovnyev S. I. , Lukin V. N. , Sleptsova M. N.
Published: July 2024

The results of the analysis of genetic characteristics for 15 microsatellite loci of the modern population of Yakut cattle of the gene pool enterprise of the State Enterprise of the Republic of Sakha (Yakutia) “Yakut Cattle” are presented. Yakut aboriginal cattle, considered one of the unique local breeds in Russia, are represented by a small population. It is distinguished by exceptionally high frost resistance (down to –60 Cº), unpretentiousness to living conditions and tolerance to insufficient nutrition. A comparative assessment of the allele pool of Yakut cattle was carried out on subpopulations of 7 farms: “Sakkyryr” of the Eveno-Bytantaisky ulus, “Kylys” of the Gorny ulus, “Taastaakh” of the Namsky ulus, “Kullegi” of the Amginsky ulus, “Onkhoi” of the Verkhnevilyuysky ulus, “Akana” of the Nyurbinsky ulus and “ Symakh” Megino-Kangalassky ulus. In total, data on 898 heads of purebred Yakut cattle were analyzed. Based on the results of the analysis, it was established that in all 15 microsatellite loci of Yakut cattle, polymorphism of alleles is widespread from 3 to 10. The most polymorphic is the TGLA53 locus, which has 10 alleles, despite this the number of effective alleles in this locus is only 2.76. Allele 160 (0.534) occurs with the highest frequency at this locus, and 188 (0.009) with the lowest frequency. In loci BM1818, INRA023, the smallest number of alleles was found – 3. Of all the analyzed loci, allele 256 of the SPS115 locus is observed with the highest frequency with an occurrence frequency of 0.733. The rarest alleles occurred with a frequency of 0.002 and 0.004. On average, the number of alleles per locus of indigenous Yakut cattle was 5.91 ± 0.46, which indicates a fairly high consolidation of the population of local purebred Yakut cattle and the lowest genetic diversity of the existing population of local cattle compared to cultivated breeds. A total of 90 alleles were identified in the Yakut cattle population.
Promising legume-cereal grass mixtures for agroclimatic conditions of the European North of Russia
Authors: Konovalova N. Y. , Konovalova S. S.
Published: July 2024

The article presents the results of scientific research for 1991–2021 years the North-Western Research Institute of Dairy and Grassland Farming, a separate subdivision of the VolRC RAS (Vologda Research Center of the Russian Academy of Sciences) on the creation of high-yielding legume-cereal grass mixtures for the agroclimatic conditions of the European North of Russia. According to the research results, technologies for growing promising crops (eastern goat, variable alfalfa, festulolium, reed fescue) in single-species and mixed crops have been developed. Bloodless crops of goat and grass mixtures for two mowing ensured the production of 7.2–7.9 t / ha of dry matter. In terms of productivity, single-species crops significantly exceeded mixed crops. From grass mixtures, stand out crops with meadow fescue, hedgehog and awnless rump stood out. The yield of variable alfalfa and grass mixtures with its participation for two mowing ranged from 7.8 to 9.5 t/ ha of dry matter. Significantly inferior to alfalfa by 0.86–1.04 t/ha of dry matter were grass mixtures with timofeevka. Single-species festulolium crops with two-mowing use were significantly inferior in yield to grass mixtures with leguminous grass species by 0.9-4.0 t/ha of SV. Legume-cereal grass mixtures were characterized by an increased protein content (1.7–2.1 times), fat (1.1–1.2 times), reduced fiber (1.2–1.3 times). Harvesting of the first mowing during the budding phase of legumes, the beginning of earing of the festulolium significantly reduced the yield of dry matter by 20% compared with harvesting during the flowering phase. At the same time, the protein content in the plant mass of early mowing increased by 12 % in festulolium, by 21–36 % in festulolium with clover and birdʼsfoot trefoil, and by 3–11 % in herbage with alfalfa. It is effective for three-mowing use to include reed fescue in legume-cereal grass mixtures. Grass mixtures with her participation in three mowing provide yields at the control level (two mowing), and in terms of protein yield per hectare exceed it by 26–31 %.
Agronomic efficiency of sunflower and spring rapeseed cultivation with the use of imidazolinone group herbicides
Authors: Lebedev D. V. , Zubkova T. V. , Vinogradov D. V. , Dubrovina O. A.
Published: July 2024

The article offers an assessment of the effectiveness of the Clearfield system in the technology of cultivation of spring rapeseed hybrid NIKSH 213 KLS and sunflower hybrid NK Neoma, taking into account different precursors in the Non-Chernozem zone. The study was conducted in the conditions of the economy of LLC “Flame” of the Korablinsky district of the Ryazan region, in 2021–2023. Clearfield is a universal production system currently used worldwide, which involves the use of modern high-yielding hybrids resistant to selective herbicide. A single application of herbicides of this system allows you to create a soil herbicide screen that restrains subsequent waves of weeds. The conducted studies allowed us to establish that the post-emergence use of herbicides in combination with an adhesive in oilseed crops destroyed 100% annual dicotyledonous weeds such as the common mountaineer, rough mountaineer. Cultivation of rapeseed and sunflower using Clearfield technology provided clean crops of these crops, and additional foliar treatment of plants with fertilizers created favorable conditions for additional formation of elements of the crop structure. The maximum yield of spring rapeseed over the years of research was recorded on the Lebozol-RAPSMIX variant of 21.4–24.2 c/ha (winter wheat) and 21.9-26.3           (spring wheat), the excess relative to the untreated variant was 21.7 % (+4.2 c/ha) and 25.7 % (+5.0 c/ha), respectively. On average, according to the experience with sunflower, the maximum yield was noted on variants with the effect of non-root top dressing Lebozol-expert–Opti Care – 32.5 c/ha against the background of the predecessor of winter wheat (an increase of + 3.8 c/ha), and 30.7 c/ha against the background of spring wheat (+3.3 c/ha).
Pengabdian Terintegrasi Dengan Mata Kuliah Eksplorasi Sumberdaya Laut Dan Estuari : Upaya Peningkatan Kesadaran Nelayan Terhadap Biota Yang Dilindungi Di Desa Sungsang Kabupaten Banyuasin Sumatera Selatan
Authors: Fauziyah  , Agustriani Fitri , Nurjuliasti Ningsih Ellis , Iskandar Iskhaq , Yustian Indra
Published: July 2024

Pengabdian terintegrasi dengan mata kuliah adalah upaya Universitas Sriwijaya untuk mengkolaborasi kegiatan pengabdian dengan mata kuliah yang relevan, agar tercipta harmonisasi antara kegiatan akademik dan pengabdian serta aplikasinya di masyarakat. Salah satu materi penting Mata kuliah Eksplorasi Sumberdaya Laut dan Estuari (ELSE) adalah pada usaha perikanan tangkap berpotensi tertangkapnya spesies yang dilindungi, salah satunya dolphin dan belangkas yang ada di wilayah periaran Banyuasin- Sumatera Selatan. Kegiatan ini bertujuan untuk  meningkat kesadaran nelayan di Desa Sungsang dalam menjaga biota laut yang dilindungi yang ada di wilayahnya.  Kegiatan dilaksanakan pada bulan Agustus-September 2023 di laboratorium ESAK Jurusan Ilmu kelautan Universitas Sriwijaya dan Desa Sungsang I, Kabupaten Banyuasin, Sumatera Selatan.  Metode yang dilakukan adalah wawancara dan edukasi kepada nelayan. Mahasiswa didampingi asisten belajar membuat kuisioner saat praktikum mata kuliah ELSE di laboratorium dan mengaplikasikan hasil kuisioner kepada responden (Nelayan) di Desa Sungsang I. Metode Pre dan post test digunakan sebagai instrument evaluasi kegiatan pengabdian. Hasil yang diperoleh adalah terjadi peningkatan pemahaman nelayan dalam mengidentifikasi biota yang dilindungi yaitu belangkas dan dolphin (dari 88% menjadi 100%), dapat membedakan jenis kelamin biota (dari 60% menjadi 100%),  terjadi peningkatan kesadaran nelayan bahwa dolphin dan belangkas adalah biota yang dilindungi (dari 60% menjadi 100%), terjadi peningkatan kesadaran nelayan untuk melepaskan dolphin dan belangkas yang terjerat jaring ke perairan (dari 60% menjadi 100%) dan membiarkan biota tersebut jika melewati kapal.  Manfaat ganda dari kegiatan pengabdian terintegrasi ini adalah nelayan mendapatkan ilmu pengetahuan untuk melestarikan biota yang dilindungi dan mahasiswa dapat menerapkan ilmu yang didapat secara langsung di lapangan.
Molecular genetic mechanisms underlying the response to heat and cold stress in Drosophila melanogaster
Authors: Neizvestny D. S. , Yakovleva E. Y.
Published: July 2024

Molecular mechanisms of stress response are interesting from an evolutionary point of view, as they are often under natural selection. In this study, we reviewed the molecular mechanisms of reaction to temperature stresses on the example of a model organism Drosophila melanogaster, which had been studied in detail. We compared the reactions to heat and cold stresses and identified similar and specific molecular response mechanisms. The key processes common to responses to both types of stress were the increased expression of the HSP (heat shock proteins) and Turandot genes and the activation of serine-threonine protein kinase p38 MAPK. Heat stress also induced TORC2-mediated formation of stress granules, but cold stress led to the increase in the synthesis of calcium-binding protein DCA and cryoprotective protein FROST. Some similarity in reactions to heat and cold stress can be explained by the similar nature of the damage induced by these stresses and the multifunctionality of the proteins that provide stress responses. Probably, there was an evolutionary trade-off between tolerance to heat and cold stress in D. melanogaster: an increase in resistance to one stress has led to a decrease in resistance to another. Fruit flies at different life cycle stages demonstrated different sensitivity to temperature influences, and the mechanisms of response to them also partially differed. The comparison of the studies on the evolution of proteins involved in response to temperature stresses allowed us to conclude that these molecular mechanisms evolved rapidly in insects, and the conclusions obtained on D. melanogaster should be transferred to other animals, even within the Diptera, with great caution. Using the FlyBase database, we examined the localization of genes whose products were involved in response to temperature stresses in the Drosophila genome. 15 out of the 21 genes mentioned in the work were located on the third chromosome, 10 on its right arm. That allowed us to hypothesize an adaptive convergence of these genes in the genome of D. melanogaster. Perhaps this helped synchronize the regulation of their expression more precisely. Understanding the molecular mechanisms of insect response to temperature stresses can be of practical importance: to help predict the changes in the species’ habitat and their adaptation to rapidly changing climate conditions, as well as to contribute to the development of insecticides that can withstand insect pests and invasive species.
Cell polyploidy. Cardiac muscle. Liver. Ontogenesis and regeneration
Authors: Brodsky V. Ya. , Kudryavtsev B. N. , Bezborodkina N. N.
Published: July 2024

Cell (somatic) polyploidy is a general biological phenomenon characteristic of unicellular and multicellular animals and plants. In mammals, polyploid cells occur in all tissues; in some cases they are few in number, while in other cases they may be the most numerous cells in an organ. The mechanism of polyploidization is a usual, but incomplete, mitosis. The cause of incompletion of the mitosis is competition between proliferation and differentiation. At the genome level, the cause is associated with metabolic disorders of cyclin-dependent kinases, some other mitotic kinases (AURORA), transcription factors Ect2, E2F, some regulatory proteins (p53, laminin, septin), and components of the Hippo signalling pathway. The timing of polyploidization is restricted to early postnatal ontogenesis and, as experiments with heart transplants have shown, is part of the developmental programme. A typical way of genome multiplication is the change from binucleate to polyploid mononucleate cells from cycle to cycle. Polyploidization of cells is irreversible. It is a normal mechanism of organ growth and, for some cells, a way of differentiation. Using cardiac muscle and liver as examples, it has been shown that the composition and number of polyploid cells depend on the life conditions in the early postnatal period. After leaving the mitotic cycle, the cells continue to grow; postmitotic hypertrophy is one of the main ways of the growth of the cardiac muscle in ontogenesis and the only way of its regeneration. A certain growth reserve of the cardiac muscle in case of damage (heart attack, etc.) has been revealed, which is associated with its ploidy formed in childhood. In case of damage to mammalian liver, all hepatocytes enter the cycle and both cell division and polyploidization occur. Polyploidy in the course of ontogenesis up to the stage of aging fully complements the restoration of tissue and organ activity.
Financial Management of International Projects: Practical Recommendations for Higher Education and Research Institutions
Authors: Shofolova Nataliia , Ulasiuk Olena
Published: July 2024

The article is prepared based on the experience of financial management of implementing the European Union Project "Reinventing displaced universities: enhancing competitiveness, serving communities" (REDU), Grant Agreement No. 2020/415-429. The analysis of institutional experience of partner universities in implementing the REDU project confirms the impact on both the national financial accounting and management system and European policies on the model of institutional financial management of international projects funded by the EU. Two approaches adopted by higher education institutions in the field of financial management have been identified: an approach that adheres to budgetary norms and limits in the use of grant funds, and an approach oriented towards grantor limits and norms. Under the first approach, higher education institutions are not confident in financial autonomy in managing grant funds, while the second approach is more progressive and oriented towards European practices within national legislation. It has been proven that under both approaches, universities formulate institutional policies for effective project financial management, which is important for systemic development and financial stability of the university. The principles of project financial management have been identified. The main documents necessary for consideration in grant finance management at the grantor, national, and institutional levels have been highlighted. Best practices for team formation and partner interaction, project revenue and expenditure planning, currency exchange operations and exchange rate usage, salary payments, travel reimbursements, equipment and service procurement, compliance with expenditure eligibility rules, documentation preparation, and financial reporting submission are proposed. Practical issues and conclusions of project implementation will be useful for project and financial managers, accountants working with international projects funded by the European Union.
Peculiarities of university brand formation in the context of political branding of the front-line territory (on the example of the city of Kherson)
Authors: Kostiuchkov Serhii
Published: July 2024

The article substantiates the relevance of the formation and development of the university brand in the context of political branding of the front-line territory, using the example of the city of Kherson, in the conditions of the Russian-Ukrainian war. The role of brands is studied, the creation and promotion of which are urgent tasks for scientists of various fields, as well as for practitioners, since it is brands that are designed to ensure a high level of competitiveness of goods and services in modern markets, in particular - educational services. It has been established that a brand is a product of human imagination and creative activity - it is a kind of mental construct, a mental image, a symbolic model, the activation of which will serve to specify the orientation of the consumer of goods and/or services in the relevant market. The essence of the political brand of the territory, which primarily performs ideological, cultural, patriotic, political and other functions, is revealed. The role of territory branding (geobranding) is shown as a process of brand creation, which aims to promote local, regional and national projects, in particular - political ones, focused on the progressive development of a specific territory; under favorable socio-political conditions, a promising brand will provide an opportunity to effectively invest a regional resource in the political capital of society. Key positions of foreign and domestic researchers regarding the political brand and branding in their constructive connotation are highlighted. The role of unpredictable factors in the development of society is shown, in particular - military actions, which play the role of powerful activators of the process of forming the political branding of a territory or settlement. Emphasized: among the scientific and educational brands of the Kherson region and the regional center, Kherson State University (KSU) occupies a prominent place - a scientific, educational, cultural institution that forms the socio-spiritual and political-economic landscape of southern Ukraine. It is emphasized that during the full-scale invasion of the Russian army on the territory of Ukraine, the brand of Kherson State University acquired new qualitative features, the educational institution became a university of invincible patriots, forming a powerful and bright sub-brand of Kherson - a hero city. It was concluded that the brand of the university, simultaneously with the internal one, demonstrates an external effect aimed at the development of the political brand of a specific territory, actualizing and manifesting feelings of civic cohesion, justice, social responsibility and patriotism.
Utilization of Banana Peels as Active Carbon for Pollutant Removal in Wastewater
Authors: Rofikoh Vina , Zaman Badrus , Prasetyo Samadikun Budi
Published: July 2024

Pollutants from human activities released into the environment, including heavy metals, dyes, and chemicals, can harm the environment and living organisms. One solution offered to treat these pollutants is an adsorption technique using activated carbon from banana peel waste. The research aims to review the potential of banana peel waste as active carbon to remove various contaminants in wastewater and highlight the opportunities and challenges. This research uses a systematic literature review method, or what is usually called a Systematic Literature Review (SLR), to collect data from the Google Scholar online article database and E-Journal at SSO Undip (Single Sign On). The results of the literature review show that active carbon from various types of banana peels, such as Musa Acuminata, Musa sp., Musa paradisiaca L., and Musa Acuminatabalbisiana has been proven to be able to remove organic materials, inorganic anions, heavy metals, dyes, and chemical compounds from wastewater.
Pengaruh Current Ratio dan Debt to Equity Ratio terhadap Return on Equity pada PT Ekadharma International Tbk Periode 2013-2022
Authors: Ramadhan Adhiyansyah Nurkahfi , Widodo Adji
Published: July 2024

Penelitian ini bertujuan untuk mengetahui pengaruh Current Ratio dan Debt to Equity Ratio terhadap Return On Equity pada PT Ekadharma International Tbk Tahun 2013-2022. Populasi dalam penelitian ini menggunakan data yaitu laporan keuangan dengan sampel neraca dan laba rugi selama 10 tahun (2013-2022). Teknik analisis data yang digunakan adalah analisis statistik deskriptif, uji asumsi klasik,  uji regresi linier berganda, uji hipotesis, uji parsial (t), uji simultan (f), dan uji koefisien determinasi. Hasil penelitian ini menunjukan bahwa Current Ratio secara parsial berpengaruh secara positif dan tidak signifikan terhadap Return On Equity, dilihat dari nilai nilai Thitung sebesar 3,118 > Ttabel sebesar 2,365 dengan tingkat signifikan 0,388 > 0,05 dan variabel Debt to Equity Ratio secara parsial berpengaruh secara positif dan tidak signifikan terhadap Return On Equity dimana nilai Thitung sebesar 2,830 > Ttabel  sebesar 2,365 dengan tingkat signifikan 0,751 > 0,05. Sedangkan secara simultan nilai Fhitung sebesar 8,443 > 5,143 dengan nilai signifikan 0,157 > 0,05 sehingga terdapat pengaruh secara positif dan tidak signifikan antara Current Ratio dan Debt to Equity Ratio terhadap Return On Equity. Dan uji koefisien determinasi diperoleh hasil bahwa CR dan DER berpengaruh sebesar 19,5% sedangkan sisanya 81,5% dipengaruhi oleh variabel lain di luar penelitian ini.
Pengaruh Debt to Equity Ratio (Der) dan Debt to Asset Ratio (Dar) terhadap Harga Saham pada Pt. Solusi Tunas Pratama Tahun 2015-2022
Authors: Salsabila Sonia Putri , Fadli Achmad Agus Yasin
Published: July 2024

Penelitian ini bertujuan untuk mengetahui Harga Saham pada PT.Solusi Tunas Pratama terkait dengan Debt to Equity Ratio (DER), Debt Asset Ratio (DAR) tahun 2015-2022 (dalam %) Dalam penyusunan skripsi ini penelitian yang dilakukan penulis bersifat deskriptif dengan pendekatan kuantitatif. Pengaruh Debt to Equity Ratio, Debt to Asset Ratio terhadap Harga Saham Dalam melakukan penelitian mengenai apakah ada pengaruh secara simultan dari variabel independen dan dependen,maka dari itu penelitian ini menggunakan Uji-F. Berdasarkan dari penelitian diatas Debt to Equity Ratio dan Debt to Asset Ratio berpengaruh terhadap Harga Saham. Dapat diketahui Fhitung lebih besar (12,494 > 5,14) dan nilai signifikan (0,011> 0,05). Debt to Equity Ratio (DER) berpengaruh tidak signifikan terhadap Harga Saham pada PT.Solusi Tunas Pratama periode 2015-2022. Debt to Equity Ratio (DER) memiliki t tabel sebesar 2,570 dan untuk t hitung sebesar 2,390 yang mana artinya thitung lebih kecil dar t tabel (2,390 < 2,570) dan untuk nilai Sig. DER lebih besar dari pada nilai probabilitas (0,062 > 0,05). Debt to Asset Ratio (DAR) berpengaruh tidak signifikan terhadap Harga Saham pada PT.Solusi Tunas Pratama periode 2015-2022. Debt to Asset Ratio (DAR) memiliki t hitung sebesar -3,157 dan t tabel sebesar 2,570. Yang berarti t hitung lebih besar dari t tabel (-3,157 > 2,570) dan nilai signifikasi DAR (0,025<0,05) Pengaruh bersama-sama (simultan) antara Debt to Equity Ratio (X1), Debt to Asset Ratio (X2),dan Harga Saham (Y), yaitu berpengaruh signifikan terhadap Harga Saham. Hasil dari Uji Simultan (Uji F) menyatakan bahwa F hitung 12,494 F tabel 5,14 dengan nilai Sig sebesar 0,011 > 0,05 maka dari hasil pengujian Ho ditolak dan Ha diterima.
Pengaruh Current Ratio (CR) dan Debt to Asset Ratio (DAR) terhadap Net Profit Margin (NPM) pada PT Indocement Tunggal Prakarsa Tbk Periode 2013-2022
Authors: Damayanti Rindi Mesya , Noryani Noryani
Published: July 2024

Penelitian ini bertujuan untuk mengetahui pengaruh Current Ratio (CR) dan Debt To Asset Ratio (DAR) terhadap Net Profit Margin (NPM) pada PT Indocement Tunggal Prakarsa Tbk periode 2013-2022. Objek penelitian yang digunakan dalam penelitian ini yaitu dengan data sekunder data berupa laporan keuangan pada PT Indocement Tunggal Prakarsa Tbk. Metode yang digunakan pada penelitian ini adalah metode deskriptif kuantitatif. Analisis data yang digunakan adalah statistik deskriptif, uji asumsi klasik,analisis regresi linier sederhana analisis linier berganda, koefisien determinasi, koefisien korelasi, dan uji hipotesis dengan taraf signifikan 0,05. Berdasarkan hasil uji t menunjukkan bahwa secara parsial  Current Ratio (CR) berpengaruh secara signifikan terhadap Net Profit Margin (NPM). Kemudian secara parsial Debt To Asset Ratio (DAR) tidak berpengaruh signifikan terhadap Net Profit Margin (NPM), Berdasarkan hasil uji f menunjukkan bahwa secara simultan Current Ratio (CR) dan Debt To Asset Ratio (DAR) berpengaruh signifikan terhadap Net Profit Margin (NPM). Selanjutnya,berdasarkan Uji Koefisien Determinasi bahwa nilai bahwa nilaiR Square 0,812 atau 81,2 %, artinya Current Ratio dan Debt to Asset Ratio memberikan kontribusi yang kuat terhadap Net Profit Margin. Dan sisanya 18,8% dijelaskan oleh variabel lain.
Pengaruh Current Ratio (CR) dan Debt to Equity Ratio (DER) terhadap Return on Asset (ROA) Pada PT Kalbe Farma Tbk Periode 2012-2021
Authors: Arizal Muhammad , Prasetyo Hendri
Published: July 2024

Penelitian ini bertujuan untuk menguji pengaruh Current Ratio dan Debt to Equity Ratio terhadap Return on Asset PT. Kalbe Farma. Tbk. Data diperoleh melalui laporan keuangan yang telah disusun PT.Kalbe Farma Tbk. Dengan menggunakan metode kuantitatif deskriptif dengan sampel sebanyak 10 tahun yaitu laporan keuangan tahunan periode 2012-2021. Analisis data yang digunakan analisis regresi linear berganda dengan menggunakan Software SPSS (Statistical Product Service Solution) versi 26. Uji hipotesis menggunakan Uji t, Uji f dan Uji determinasi. Hasil Uji hipotesis secara parsial Current Ratio (CR) berpengaruh dan signifikan terhadap Return On Asset (ROA). Debt to Equity Ratio (DER) tidak berpengaruh dan signifikan terhadap Return On Asset (ROA). Hasil pengujian secara simultan menunjukan bahwa variabel CR dan DER berpengaruh positif dan signifikan terhadap ROA PT Kalbe Farma Tbk
Pengaruh Kepemimpinan dan Motivasi Kerja terhadap Kinerja Karyawan pada CV. Aroma Berkah Seribu Tangerang Selatan
Authors: Sudarso Eko
Published: July 2024

Penelitian ini bertujuan untuk mengetahui Kepemimpinan dan Motivasi Kerja terhadap Kinerja Karyawan pada CV. Aroma Berkah Seribu Tangerang Selatan. Jenis penelitian yang digunakan dalam penelitian ini adalah penelitian kuantitatif. Dalam penelitian populasinya adalah karyawan CV. Aroma Berkah Seribu yang berjumlah 55 Karyawan. Sampel yang digunakan oleh penulis dalam penelitian ini berjumlah 55 orang. Metode pengumpulan data yang digunakan dalam penelitian ini adalah data primer. Hasil dari penelitian ini menunjukkan bahwa Kepemimpinan berpengaruh signifikan terhadap kinerja karyawan dengan nilai thitung > ttabel atau (4.878 > 2.004).. Motivasi Kerja berpengaruh signifikan terhadap Kinerja Karyawan dengan nilai thitung > ttabel atau (8.551 > 2.004). Kepemimpinan dan Motivasi Kerja berpengaruh signifikan terhadap kinerja karyawan dengan persamaan regresi Y = 16,122 + 0,131X1 + 0,759X2. Nilai koefisiensi korelasi sebesar 0,767 artinya memiliki hubungan yang kuat. Nilai koefisiensi determinasi sebesar 0,588 atau kontribusi pengaruh secara simultan sebesar 58,8% sedangkan sisanya sebesar 42% dipengaruhi oleh fakor lain. Uji hipotesis nilai Fhitung > Ftabel atau (37,178 > 3,16). Dengan demikian H0 ditolak dan H3 diterima, artinya terdapat pengaruh yang signifikan secara simultan antara Kepemimpinan dan Motivasi Kerja terhadap Kinerja Karyawan pada CV. Aroma Berkah Seribu Tangerang Selatan.
Decay of the initial oil concentration discontinuity in the Buckley--Leverett model
Authors: Meirmanov Anvarbek
Published: July 2024

We consider a free boundary problem for a one-dimensional system of Buckley-Leverett equations, describing the displacement of oil by a suspension. For this problem we formulated conditions for the strong decay of the discontinuity of the initial oil concentration. We will prove that the phenomenological Buckley-Leverett model does not adequately describe the physical process under consideration. To do this, we will study the problem of the decay of a discontinuity in the initial concentration of oil, when at rest in one half of the domain there is oil, and in the other half of the domain there is a suspension, and these domains are separated by an impenetrable partition. At the initial moment of time, the partition is removed and a non-negative suspension velocity is maintained at the injection wells. An accurate analysis of the unique solution to the Buckley-Leverett model shows that at the initial moment of time, oil begins to displace the suspension, resulting in the formation of a zone of mixing of oil and suspension. If the velocity of the suspension at the injection wells is high enough, then at some point in time the natural option of displacing oil by the suspension begins to be realized.}\keywords{Free boundary problems, transport equations, displacement of oil by suspension, strong discontinuity conditions.
Pemphigus and Bullous Pemphigoid in Indian Skin: A Study done in Tertiary Hospital of Bihar
Authors: Sinha Sneha , Mehra Pallavi , Aditi Sneha , Kumar Dilip
Published: July 2024

Clinical diagnosis of Pemphigus and Bullous pemphigoid relies heavily on the appearance of the bulla which varies depending on multiple factors like age of the lesion, itching, previous or self application of steroids, and most importantly skin tone. Most of the medical literature is derived from studies in the western population and hence leaves a large gap in the knowledge of presentation of these diseases in the Indian population. An accurate representation of these varied clinical presentations
is required to enable the clinicians to make a competent diagnosis..
PENGARUH KESADARAN WAJIB PAJAK, PENGETAHUAN PAJAK, DAN AKUNTABILITAS PELAYANAN PUBLIK TERHADAP KEPATUHAN WAJIB PAJAK KENDARAAN BERMOTOR DENGAN VARIABEL INTERVENING PENDAPATAN
Authors: Khairunnisa Zahira Asri  , Yeni Fitri , Eliza
Published: July 2024

This study aims to determine the influence of taxpayer awareness, tax knowledge, and public service accountability on compliance of motor vehicle taxpayers with the income variable as an intervening variable at the Samsat Office in Sawahlunto City. This type of research is quantitative research. The sampling technique used Accidental Sampling. The number of sample respondents in this study was 100 respondents. Data collection technique used a questionnaire conducted at the Samsat Office in Sawahlunto City. The results of this study indicate that taxpayer awareness influences income, while tax knowledge and public service accountability do not influence income. Additionally, taxpayer awareness, tax knowledge, and income influence taxpayer compliance. Meanwhile, public service accountability does not influence taxpayer compliance. Income cannot mediate the influence of taxpayer awareness, tax knowledge, and public service accountability on compliance of motor vehicle taxpayers.
Navigating the uncommon: Goblet cell adenocarcinoma of appendix with brief review of literature
Authors: Trivedi Uttapalla Laxmi , Das Mayurakshi , Sekaran Anuradha , Mathur Siddhant , Rao G V
Published: July 2024

Goblet cell adenocarcinoma (GCA) is a rare gastrointestinal malignancy with biological behavior intermediate between well-differentiated neuroendocrine tumor and adenocarcinoma. A succinct description of GCA has been made in the 5th edition of the World Health Organization classification of Digestive system tumors, after being decamped from the carcinoid group. Here, we present the case of a 44-year-old male, who presented with pain and abdominal distension and was found to have ileal stricture and subsequently underwent ileocecal resection. Histopathological examination revealed wall of the appendix infiltrated by a tumor, arranged predominantly in tubules (70%) and composed of goblet-like mucinous cells. Focal high-grade component (30%) of signet ring cells noted. Immunohistochemistry highlighted an amphicrine immunoprofile of diffuse CK20 and CDX2 immunopositivity and focal positivity for synaptophysin and chromogranin in the same tumor population. We also discuss the review of recent literature on cases of GCA and discuss its salient histological features, immunoprofile, and differential disgnoses.
Faktor yang Mempengaruhi Minat Generasi Milenial dalam Menggunakan Produk Asuransi Syari’ah
Authors: Syaputri Windi Aprillian , Siti nur izzati  , Arini Zesxia Viviola
Published: July 2024

Sharia insurance is one of the sharia financial products chosen by the public, especially the millennial generation who are Muslim. This is because there is awareness regarding insurance that does not contain usury, gharar and maisir, so sharia insurance is chosen because it is guided by sharia principles. Basically, the millennial generation in Bengkalis is interested in using sharia insurance products. However, there are many reasons why this desire is not realized, one of which is because the number of sharia insurance agents or companies in Bengkalis is very small. This research was conducted using descriptive qualitative methods with data collection tools in the form of interviews and literature studies. The research results show that the millennial generation, especially those who adhere to the Islamic religion, are interested in using sharia insurance products. However, in Bengkalis it is still very rare to find sharia insurance companies or agents so that the desire of the millennial generation to use sharia insurance cannot be realized optimally. There are several factors that can influence the millennial generation's interest in using sharia insurance, including religiosity (religion), promotional factors, social factors, personal factors, financial literacy factors, and income factors. The author also provides advice to the parties concerned, especially on Bengkalis Island, to provide outreach to the millennial generation regarding sharia insurance products and expand the target market by increasing the number of sharia insurance companies or agents to accommodate the interests of the millennial generation in Bengkalis towards sharia insurance products.
УНИКНЕННЯ ПРИТЯГНЕННЯ ДО КРИМІНАЛЬНОЇ ВІДПОВІДАЛЬНОСТІ ЗА КОРУПЦІЙНІ ДІЯННЯ ЗА УМОВ ЮРИДИЧНОЇ ПОМИЛКИ: ДИСКУСІЙНІ АСПЕКТИ
Authors: ВЕКЛИЧ Владислав
Published: July 2024

У статті розглянуто різні аспекти доктринального опрацювання дефініції уникнення притягнення до кримінальної відповідальності за корупційні діяння за умов юридичної помилки. Увагу в контексті цього дослідження було закцентовано на окремих дискусійних особливостях юридичної практичної діяльності, які стосуються законотворчої практики, правотворчої і правозастосовної практики, що у підсумку призводять до уникнення винними особами притягнення до кримінальної відповідальності за корупційні діяння. Було опрацьовано доктринальне розмежування понять уникнення і ухилення від кримінальної відповідальності, а також звільнення і уникнення кримінальної відповідальності за корупційні діяння за умов юридичної помилки задля напрацювання чіткості дефініцій у розглядуваній сфері. Під час дослідження встановлено міжгалузевий характер уникнення притягнення до кримінальної відповідальності за корупційні діяння, у зв’язку з чим запропоновано подальшу розробку відповідного міжгалузевого правового інституту (передусім в контексті таких галузей права, як кримінальне і кримінально-процесуальне). Загалом, матеріали цього дослідження мають дискусійний характер щодо розробки відповідної проблематики.
FINTECH INDUSTRY AS A DETERMINING FACTOR IN THE DEVELOPMENT OF THE INNOVATION MARKET
Authors: Gavrylko Oleksandr ,   National Aviation University
Published: July 2024

The article considers the essence and evolution of financial technologies. The approaches of foreign and domestic scholars to the interpretation of the essence of the FinTech category as a way to provide consumers with financial products and services of a new level of quality, which will contribute to increasing the level of financial inclusion and the processes of forming new business models of the financial sector were analyzed. The features of the development of the global financial technology market were studied, the characteristics and advantages of FinTech market segments are presented. Trends in the development of the global FinTech market for the period 2020–2023 and forecast indicators of the main market segments – unbanking, open banking, digital payments, payments using CBDC, blockchain technologies, embedded finance, digital lending, e-commerce, anti-money launder- ing, cybersecurity, ecology, social development and corporate governance, artificial intelligence – were analyzed. The factors that led to the decline in global investment in 2023 and the past period of 2024 were identified: high interest rates, prolonged inflation, instability due to russia's invasion of Ukraine, and the conflict in the Middle East. The state of FinTech in Ukraine, as an organic component of the global FinTech ecosystem, under martial law, and the distribution of FinTech companies by industry was assessed. The analysis of the use of financing methods by domestic FinTech companies revealed that the main source is own funds (used by 66% of companies); funds from private investors are used by 15% of companies; venture capital funds are financed by 5% of companies. The participation of business angels in financing (2%), the use of family and friends' finances (2%) is insignificant; 1% of companies receive funds through crowdfunding; the share of companies using bank loans (1%), financial support from accelerators and incubators (1%), and donor programs (1%) is similar. The prospects for the development of the FinTech industry in Ukraine, the intentions of FinTech companies to use various sources of financing their activities in the future were determined. The main factors that will determine the future state of the domestic FinTech market were considered.
EVOLUTION OF DIGITAL COMMUNICATION CHANNELS IN INTERNET MARKETING
Authors: Zhukovskyi Dmytro ,   Dnipro State Agrarian and Economic University
Published: July 2024

Internet marketing, as a strategic direction in modern business, undergoes constant changes and development, which is also reflected in the use of digital communication channels. This article analyzes the evolutionary trajectory of communication channels in internet marketing, from mass media tools to personalized communication instruments. The features of using digital communication channels such as email (communication methods – welcome messages, informational, promotional, reactivation emails, abandoned cart notifications, product availability or new arrival updates), retargeting technology in advertising networks (static and dynamic retargeting), mobile marketing (autodial, SMS, and push notifications), electronic messengers, personalized content in social networks (exclusive offers and promotions, product recommendations and assistance, feedback collection and surveys, responses to comments and messages, order status updates, and customer support), and personalization tools on websites (interactive quiz forms, multileadings, recommendation systems, chatbots using artificial intelligence) are highlighted. Examples of the possible application of generative artificial intelligence tools to solve tasks for improving personalized communication processes are also provided. The feasibility of using personalized communication tools for enterprises classified as small and medium-sized businesses is proven as a revolutionary innovation that allows significantly reducing advertising costs. For each type of digital communication channel, examples of personalized communication methods are provided, which, according to research results, can be successfully applied in enterprises with different conversion funnel structures. The features of implementing a comprehensive omnichannel approach to digital communication channels are presented, which involves the use of CRM systems with the implementation of analytics modules (big Data technologies) for customer database segmentation, the application of automated electronic communication systems, and generative artificial intelligence for developing and scaling innovative personalized communication tools in the digital environment.
КОНЦЕПТУАЛЬНІ ПІДХОДИ ДО РЕІНЖИНІРИНГУ ТА УДОСКОНАЛЕННЯ БІЗНЕС ПРОЦЕСІВ ПІДПРИЄМСТВА
Authors: Каламан О.Б. , Ковтун О.О.
Published: July 2024

У статті розглянуто ключові відмінності між удосконаленням бізнес-процесів (BPI) та реінжинірингом бізнес-процесів (BPR). Висвітлено значення стратегічного бачення для ефективної роботи підприємств та уникнення неефективних змін через нерозуміння різниці між BPI та BPR та їхньої необхідності. Підприємства часто інвестують значні ресурси у зміни, які можуть не бути нагальними, що призводить до збитків. Чітке стратегічне бачення є необхідним для узгодження бізнес-процесів з довгостроковими цілями, забезпечуючи ефективність і стійкий розвиток. BPI передбачає поступові поліпшення існуючих процесів для підвищення ефективності, тоді як BPR вимагає радикального реінжинірингу не тільки процесів для досягнення значних покращень, але і підприємства в цілому. У статті надано приклади застосування BPI і BPR у підприємствах, що ілюструють їхні успіхи та невдачі виходячи із знаходження у відповідній фазі розвитку. Підкреслюється важливість лідерських компетенцій і стратегічного бачення для успішного впровадження BPI або BPR, з акцентом на ефективну комунікацію, прийняття рішень на основі даних і стимулювання інновацій.
ISSUES OF TRANSPARENCY AND DIGITALIZATION OF FINANCIAL SECTOR ENTITIES UNDER MARTIAL LAW
Authors: Kовальова Олена , Кучеревський Антон
Published: July 2024

The article deals with the issues of digitalisation and transparency in the functioning of the financial sector of Ukraine's economy under martial law. The concepts of «transparency», «digitalisation» and «digitisation» of the financial sector are studied. The main tools for ensuring transparency, in particular, the Credit Register of Individual Borrowers, are considered, its concept is revealed and the latest resolutions of the National Bank of Ukraine are presented. The author analyses the strategies for the development of the financial sector of Ukraine, which directly play an important role in creating the basis for improving the transparency of the financial sector. Identifying the issues of digitalisation will become an effective tool for improving efficiency, reducing risks and increasing confidence in financial service providers, maintaining openness and stimulating further development of the financial sector of Ukraine.