bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effect of Liquidity, Leverage, Company Size and Independent Board of Commisioners on Financial Distress
Authors: Iswanto Ochadifa Salsabila , Hariyanto Eko , Hartikasari Annisa Ilma
Published: September 2024

Financial distress is a serious problem that threatens the sustainability of the company. The company's financial condition is very important, if the company's finances decline, the company must be prepared to improve the company's financial condition so that financial distress does not occur. This study aims to determine the effect of liquidity, leverage, company size and independent board of commissioners on financial distress. The sampling technique used purposive sampling with a total sample of 64 companies. The population in this study are energy sector mining companies listed on the Indonesia Stock Exchange in 2019-2022. The data used is secondary data. The results showed that liquidity has no effect on financial distress, leverage has a positive effect on financial distress, company size has a negative effect on financial distress, the board of independent commissioners has a positive effect on financial distress.
Apendicite aguda não complicada: tratamento cirúrgico
Authors: Samuel Ribeiro Martins  , Pedro Vergílio Lugão de Azevedo  , Juliana Louvise Carvalho  , Laila Fernanda Santana Barra  , Leandro Alves da Cunha  , Renato de Souza Susanna Machado  , Afonso Luis de Filippi Leal  , Ana Paula de Souza Guedes  , Lorena da Silva Pereira  , Ramon Oliveira Araujo  , Júlia Gaspar Calzolari  , Lisia Raquel Fernandes Paz  , Mariana Coelho Carlette  , João Rafael Queiroz Soares  , Carolina Ferreira Gomes  , Nicole Cherene da Silva  , Maria Eduarda Gonçalves Nunes  , Gustavo Sousa Andrade  , Ricardo Ramsés Guedes Ribeiro  , Fernanda Machado Ribeiro  , Nathan dos Santos Rodrigues  , Germana Gadelha da Câmara Bione Barreto  , Maria Laura Machado Roux Lima  , Letícia Jacobowskí Ferreira  , Guilherme Dias Miranda Salgado Ribeiro  , Renato de Souza Susanna Machado  , Milckea Hellene Araújo Barbosa Costa  , Artur Pereira Parreira  , Matheus Augusto Pereira e Vieira
Published: September 2024

Apendicite aguda é uma emergência abdominal comum, com a apendicectomia tradicionalmente sendo o tratamento padrão. Recentemente, o uso de antibióticos tem se mostrado uma alternativa eficaz para casos não complicados, como evidenciado pelo estudo CODA. Apesar dos resultados promissores do tratamento conservador, a apendicectomia continua sendo amplamente recomendada devido à sua eficácia a longo prazo. O objetivo desta revisão sistemática consiste em avaliar a eficácia e segurança do tratamento cirúrgico na apendicite aguda não complicada, comparando diferentes abordagens cirúrgicas em termos de desfechos clínicos e recuperação dos pacientes. Foram utilizadas as seguintes bases de dados científicas: Scopus e PubMed, para a seleção dos artigos, como o uso dos unitermos em língua inglesa: “Acute Appendicitis, Uncomplicated Appendicitis, Surgical Treatment, Appendectomy”. Conclui-se que ao comparar os tratamentos cirúrgicos com o conservador para apendicite aguda não complicada, destaca-se a superioridade da apendicectomia, especialmente a laparoscópica, em termos de eficácia e recuperação. Apesar das vantagens iniciais dos antibióticos e da terapia endoscópica, a cirurgia oferece uma solução definitiva, e reduz a taxa de recorrência e complicações a longo prazo. O tratamento conservador pode ser viável em casos específicos, entretanto, a apendicectomia é geralmente preferida devido ao seu sucesso comprovado. Desse modo, a decisão deve ser baseada nas características individuais e nas preferências do paciente, no entanto, as evidências atuais favorecem fortemente a cirurgia.
The Role of Renewable Energy Policies in Achieving Environmental Sustainability Goals
Authors: Sharma Aditi
Published: September 2024

The critical role of renewable energy policies in advancing environmental sustainability goals. As the global community faces the dual challenges of climate change and resource depletion, renewable energy has emerged as a vital component of sustainable development strategies. This study evaluates the effectiveness of various renewable energy policies implemented across different regions and their impact on reducing greenhouse gas emissions, fostering energy independence, and promoting economic growth. Through a comprehensive review of case studies and policy frameworks, the research identifies key factors that contribute to successful policy outcomes, including government incentives, regulatory support, and public-private partnerships. The importance of aligning renewable energy policies with broader environmental objectives and the need for adaptive strategies to address emerging challenges. The findings underscore that well-designed renewable energy policies not only facilitate the transition to a low-carbon economy but also drive innovation and create sustainable economic opportunities. best practices and policy recommendations to enhance the role of renewable energy in achieving long-term environmental sustainability goals.
Azərbaycanda ailənin formalaşmasının sosial-psixoloji problemləri
Authors:   AEM ( Azerbaijan Science Center ), Mamayeva Nailə
Published: September 2024

Xülasə Ailə mürəkkəb sosial hadisə kimi insan fəaliyyətinin demək olar ki, bütün aspektlərini əhatə edir və sosial praktikanın vacib səviyyələrinə çatır. Ailə dəyərlərinin yenidən nəzərdən keçirilməsi və qiymətləndirilməsi cəmiyyətimizin aktuallığını təşkil edir, eyni zamanda ənənəvi ailə dəyərləri nəinki transformasiyaya məruz qalır, hətta bəzi aspektlərində dəyərsizləşir. Evlənən və birgə həyata addım atan insanlar, nə qədər fərqli olsalar da, bir-birlərindən gözləntilərini və tələblərini əla­qələndirməlidirlər. Ailə dəyərlərinin ortaq iyerarxiyası elə qurulmalıdır ki, o, hər iki həyat yoldaşı üçün məmnunluq gətirən, həyat keyfiyyətini yaxşılaşdıran çevik və effektiv mübarizə sisteminə çev­rilsin.
Characteristics of the hormonal background in women with abnormal uterine bleeding and extragenital disorders
Authors: Vygivska Liudmyla A. , Blahoveshchenskyi Roman Y. , Blahoveshchenskyi Yevgenii V. , Radzischevska Yevgeniia B. , Guz Iryna A. , Buhaiova Olena V. , Pliekhova Olesia O.
Published: September 2024

Aim: To establish the peculiarities of the hormonal background in women with abnormal uterine bleeding and extragenital disorders.
Materials and Methods: The study involved examination of 100 women of reproductive age with concomitant ED and AUB (MG). CG included 50 healthy women. MG women were additionally divided into subgroups depending on the detected pathological changes in the uterine cavity. When examining the hormonal status, concentrations of FSH, LH, estradiol, progesterone, and leptin in BS were determined. Additionally, the level of 25-hydroxyvitamin D ((25-OH) D) was determined.
Results: The decrease in FSH level in subgroups of GP, PSL, EH, EHL was 1.8-2.4 times (KWT, p<0.01). LH in BS of MG patients was statistically lower than that of CG patients (MWT, p=0.0083). The lowest level of LH was registered in patients with EHL, which was 2 times lower than this indicator in CG. A statistically significant increase in the level of estradiol was registered in 73% of MG patients (MWT, p=0.044). The lowest level of progesterone was registered in patients with EHL - 8.40, which is 4.7 times lower than in CG (MWT, p=0.0021). A statistically significant increase in the level of leptin in BS was observed in MG patients (KWT, p=0.0021). The highest level of leptin was found in women with AFP, 2.3 times higher than CG indicators. A statistically significant correlation between the level of leptin and BMI (r=0.86, p=0.011) and a statistically significant (p=0.023) correlation between the level of leptin and estradiol in BS of patients of the examined groups (r=0.42) were revealed. In 87% of MG women, vitamin D deficiency was observed in BS (KWT, p=0.03). A statistically significant (p=0.01) negative correlation between the level of estradiol and vitamin D in the BS of female patients was revealed (r=-0.61, p=0.01).
Conclusions: Women of reproductive age with AUB and ED were found to have disorders in the hypothalamic-pituitary-ovarian system. Most patients are characterized by an elevated level of leptin, the concentration of which is closely correlated with BMI, and an elevated level of estradiol is correlated with the level of vitamin D.
Automation of the Process and Generation of Statistical Reports for Scientific Conferences and Journals in the Republic of Albania
Authors: Qordja Gerild
Published: September 2024

The exponential increase in data in academic settings has made automated methods necessary to improve data management's accuracy and efficiency. This study focuses on the usage of robotic process automation (RPA), optical character recognition (OCR), and ASC TIMETABLE as automated tools at the Mediterranean University of Albania. The main goal is to evaluate how well ASC TIMETABLE and OCR produce structured data that may be used in RPA procedures, especially when it comes to scheduling and lecturer evaluations.  The study identifies a number of critical issues, including the need for automation system integration, the inaccuracy and inefficiency of manual data handling, and the prompt production of statistical reports. Through an analysis of these problems, the paper shows how automated technology can solve these difficulties and result in notable enhancements to administrative procedures. The findings show that when combined with RPA, ASC TIMETABLE and OCR offer a reliable method for automating the creation and maintenance of data. According to the findings, implementing these technologies can lessen administrative workloads, enhance data quality, and make it easier to produce statistical reports quickly. This report gives insightful information about the potential of automation in academic administration and offers helpful suggestions for organizations looking to use related technologies.
 
Received: 16 May 2024 / Accepted: 27 August 2024 / Published: 05 September 2024
Analisis Partisipasi Masyarakat Terhadap Perencanaan Pembangunan Di Kecamatan Siborong - Borong Kabupaten Tapanuli Utara
Authors: Manalu Tonny , Siregar Robert Tua , Damanik Sarintan E , Ginting Mustafa
Published: September 2024

Penelitian ini bertujuan untuk, mendeskripsikan dan menganalisis proses perencanaan pembangunan di Kecamatan Siborong - borong Kabupaten Tapanuli Utara. Penelitian ini merupakan penelitian kualitatif dengan tujuan utama mendeskripsikan atau melukiskan secara terperinci dan mendalam mengenai partisipasi masyarakat dalam perencanaan pembangunan di Kecamatan Siborong - borong Kabupaten Tapanuli Utara. Teknik pengumpulan data dalam penelitian ini menggunakan wawancara semi terstruktur dan observasi. Analisis data dalam penelitian ini menggunakan interactive model analysis dari Miles dan Huberman yang meliputi tahap Reduksi data, penyajian data dan verifikasi data atau penarikan simpulan. Dari hasil penelitian dapat disimpulkan bahwa: 1, Proses perencanaan pembangunan telah dilaksanakan dengan baik di Kecamatan Siborong - borong Kabupaten Tapanuli Utara, dimana : a) beberapa tahapan proses perencanaan pembangunan di masing - masing desa telah dilaksanakan, diantaranya tahapan persiapan dan tahapan pembahasan kegiatan / penetapan prioritas kegiatan yang akan disampaikan ke tingkat musrenbang Kecamatan, seperti Kelurahan Siborong - borong, Desa  Pariksabungan, Desa Pohan Julu, Desa Hotabulu, Desa Lobusiregar I dan Desa Desa Lobusiregar II; b) Di tingkat Musrenbang Kecamatan beberapa tahapan proses perencanaan pembangunan telah dilaksanakan, terutama pada tahapan dimana masyarakat telah dilibatkan memutuskan prioritas kegiatan yang akan diajukan ke tingkat Kabupaten. 2. Partisipasi masyarakat dalam perencanaan pembangunan di Kecamatan Siborong-borong Kabupaten Tapanuli Utara masih rendah. Untuk itu perlu penyempurnaam tahapan pelaksanaan perencanaan partisipatif, Mengoptimalkan kegiatan identifikasi masalah dan kebutuhan masyarakat, dan perlu peningkatan pemahaman perangkat desa/kecamatan, unsur pembangunan dan unsur masyarakat mengenai perencanaan pembangunan
Pengaruh Kinerja Dan Tingkat Penddidikan Terhadap Pengembangan Sumber Daya Manusia Sekretariat Daerah Kabupaten Toba Samosir
Authors: Sibuea Erikson , Siregar Robert Tua , Damanik Sarintan E , Ginting Mustafa
Published: September 2024

Penelitian ini dilakukan untuk mengetahui Kinerja dan Tingkat Pendidikan Terhadap sumber daya manusia di Sekretariat Daerah Kabupaten Toba Samosir baik secara parsial maupun secara serempak. Sumber data yang diperoleh merupakan data primer yaitu dari melalui penyebaran angket pertanyaan terhadap 98 pegawai Sekretariat Daerah Kabupaten Toba Samosir. Setelah data diperoleh, maka selanjutnya data ditabulasi dan dianalisis dengan menggunakan metoda analisis kualitatif dan kuantitatif. Untuk pengolahan data yang dimaksud dilakukan dengan cara perhitungan manual dan dengan menggunakan bantuan software komputer, yaitu SPSS Versi 20. Dari hasil analisis secara kualitatif diperoleh gambaran bahwa kinerja, tingkat pendidikan dan sumber daya manusia berada dalam kategori cukup. Sedangkan analisis secara kuantitatif diperoleh kesimpulan bahwa secara serempak ada pengaruh nyata kinerja dan tingkat pendidikan dalam meningkatkan sumber daya manusia di Sekretariat Daerah Kabupaten Toba Samosir, yaitu sebesar 0,21%. Untuk uji secara parsial dapat diketahui bahwa kedua variabel  kinerja dan tingkat pendidikan berpengaruh nyata terhadap sumber daya manusia. Untuk variabel kinerja, setiap peningkatan kinerja sebesar 1%  maka akan diikuti pada peningkatan sumber daya manusia sebesar 21,0% dan untuk variabel tingkat pendidikan, setiap peningkatan tingkat pendidikan sebesar 1%  maka akan diikuti pada peningkatan sumber daya manusia sebesar 16,3%. Dari uji secara parsial diperoleh bahwa variabel kinerja lebih berpengaruh nyata daripada variabel tingkat pendidikan didalam meningkatkan sumber daya manusia pegawai secretariat Daerah  Kabupaten Toba Samosir. Implikasi dari penelitian ini kepada jajaran pimpinan dan pegawai di lingkungan secretariat Daerah Kabupaten Toba Samosir untuk lebih meningkatkan kinerja dan tingkat pendidikan sehingga akan dicapai sumber daya manusia yang lebih baik
THEORETICAL FOUNDATIONS OF ENTERPRISE CASH FLOW MANAGEMENT
Authors: Tanklevska Nataliya
Published: September 2024

The purpose of the article is to define the theoretical foundations of cash flow management of enterprises in the context of modern challenges.
The  scientific  novelty. The obtained results of the study have elements of scientific novelty, in particular, the refinement of the theoretical basis for the formation of enterprise cash flows, which includes the work of mercantilists, Marxists, monetarists and contemporaries, was further developed; the importance of taking into account the factors of discounting cash flow, which include inflation, risk and the availability of alternative opportunities for investing financial resources, which significantly increased the relevance for ensuring the financial stability of the enterprise in the face of modern challenges. Also of scientific interest is the structured presentation of the advantages and disadvantages of the main sources of financing the cash flow of enterprises.
Conclusions.  Thus, the fundamentals of enterprise cash flow management are formed on the basis of mercantilism, monetarism, capital theory and the concept of cash flow. Based on the essence of the concept under study, the author determines the cyclical nature of cash flow, which implies a certain interval during which financial resources move. Therefore, it is necessary to discount its volume, which is associated with many risks, including economic and military risks, inflation and the possibility of using alternative investment channels. Cash flow management of enterprises depends on the formation of an optimal structure of sources of financial resources, which implies the need for timely and systematic assessment of the advantages and disadvantages of using alternative funds, especially in today's challenges. The risk in managing the enterprise's cash flows is associated with the uncertainty of economic activity, as well as the variability of the exogenous environment (the impact of a full-scale war, inflation, lack of financial resources, destruction of the resource base, conditions of unpredictability). Prospects for further research are to determine the impact of the factors and consequences of martial law on the management of enterprise cash flows, to identify possible areas of risk mitigation on the effectiveness of such management.
ПОДАТКИ ЯК ЕЛЕМЕНТ СИСТЕМИ УПРАВЛІННЯ СТАЛИМ РОЗВИТКОМ
Authors: Крюкова Ірина
Published: September 2024

Метою статті. Мета статті полягає у доповнені науково-методичного базису управління податковою системою на засадах пріоритизації цілей і завдань сталого розвитку для національної економіки. 
Наукова новизна одержаних досліджень полягає у доповненні методичних засад управління податковою системою на засадах концепції сталого розвитку. У статті досліджено прогресивний світовий  досвід способів збалансування податкових систем із цілями сталого розвитку. Досліджено сучасні інструменти і методи, які допомагають урядам європейський та інших розвинутих країн акумулювати ресурси, необхідні для фінансового забезпечення реалізації національних та глобальних завдань сталого розвитку. У авторському баченні доповнена сукупність функцій податків, які притаманні податковій системі за умов імплементації засадах сталого розвитку у державному та місцевому управлінні. Проведено аналіз сучасного стану оподаткування в Україні. Досліджено особливості структури доходів Державного бюджету, структури, динаміки та обсягу вхідних податкових потоків держави. У якості основного стратегічного драйверу подальшого розвитку вітчизняної податкової системи визначена соціальна відповідальність уряду, бізнесу, платників податків, суспільства та пріоритетність всіх елементів трилеми концепту сталого розвитку для економіки та нації.
Висновки. Податкова система постає однією з основних рухомих сил досягнення екологічних, соціальних і управлінських цілей бізнесу та суспільства. За сучасних та майбутніх умов головне завдання податкової системи – знайти баланс між всіма учасниками суспільних економічних відносин та складовими трилеми сталого розвитку. Основою досягнення такого балансу є поєднання стратегічних пріоритетів державного управління у становленні інклюзивних підходів до фінансового забезпечення цілей сталого розвитку економіки і нації та рівнем соціальної відповідальності бізнесу та інших платників податків.
On the Hopf Algebra of Noncommutative Symmetric Functions in Superspace
Authors: Arcis Diego , González Camilo , Márquez Sebastián
Published: September 2024

We study the combinatorial Hopf algebra of noncommutative symmetric functions in superspace sNSym, introduced by Fishel, Lapointe and Pinto. We introduce a family of primitive elements of sNSym and extend the noncommutative elementary and power sum functions to superspace. Then, we give formulas relating these families of functions. Also, we introduce noncommutative Ribbon Schur functions in superspace and provide an explicit formula for their product. We show that the dual basis of these functions is given by a family of the so–called fundamental quasisymmetric functions in superspace. This allows us to obtain an explicit formula for the coproduct of fundamental quasisymmetric functions in superspace. Additionally, by projecting the noncommutative Ribbon Schur functions in superspace, we define a new basis for the algebra of symmetric functions in superspace.
Automorphism Groups of Cayley Graphs Generated by General Transposition Sets
Authors: Gijswijt Dion , De Meijer Frank
Published: September 2024

In this paper we study the Cayley graph $Cay(S_n,T)$ of the symmetric group $S_n$ generated by a set of transpositions $T$. We show that for $n\geq 5$ the Cayley graph is normal. As a corollary, we show that its automorphism group is a direct product of $S_n$ and the automorphism group of the transposition graph associated to $T$. This provides an affirmative answer to a conjecture raised by A. Ganesan, Cayley graphs and symmetric interconnection networks, showing that $Cay(S_n,T)$ is normal if and only if the transposition graph is not $C_4$ or $K_n$.
Beyond Clinical Outcomes: Exploring the Psychosocial and Physical Dimensions of Quality of Life in Tuberculosis Patients Receiving Outpatient Care
Authors: Yuliyanti Sri
Published: September 2024

Tuberculosis (TB) remains a global health challenge, with significant implications for patients' quality of life (QoL). While clinical outcomes are crucial, understanding the broader impact of TB on patients' psychosocial and physical well-being is essential for comprehensive care. This study aimed to explore the multifaceted nature of QoL in TB patients receiving outpatient treatment, delving into both psychosocial and physical dimensions. A cross-sectional study was conducted among TB patients attending outpatient clinics at a tertiary care hospital. The Short Form-36 (SF-36) questionnaire was used to assess QoL across eight domains: physical functioning, role limitations due to physical health, bodily pain, general health perceptions, vitality, social functioning, role limitations due to emotional problems, and mental health. Sociodemographic and clinical data were also collected. Descriptive statistics, correlation analysis, and regression models were employed to analyze the data. The study included 150 TB patients (mean age: 42.3 years, 58% male). The overall QoL was significantly impaired, with the mental health domain showing the most pronounced impact. Factors associated with poorer QoL included female gender, lower socioeconomic status, presence of comorbidities, and longer duration of TB treatment. Notably, social support emerged as a significant predictor of better QoL across multiple domains. TB significantly affects patients' QoL, extending beyond physical symptoms to encompass psychosocial well-being. Addressing mental health concerns, providing social support, and considering socioeconomic factors are crucial components of holistic TB care. The findings underscore the need for interventions that go beyond clinical management to enhance the overall QoL of TB patients.
Peningkatan Overall Equipment Effectiveness (OEE) Mesin Produksi Section Machining Crankcase R/L Dengan Metode Total Preventif Maintenance (TPM) Dan Implementasi 5S Di PT. AHM
Authors: Sudarmono Sudarmono , Hidayat Ade Nurul , Prasetya Dwi Indra , Syahrir Azhar
Published: September 2024

Globalization has resulted in increasingly intense competition in the industrial world, especially in the automotive manufacturing industry. This is what drives companies to increase effectiveness and efficiency in each division of their company to increase the quantity and quality of their products so they can compete globally, For fine boring machines by 43% and drilling machines by 44% so that an OEE value of 43.11% is obtained, so the author aims to improve this percentage by implementing Total Productive Maintenance (TPM) maintenance and implementing 5s, After repairing the system using the method TPM and the application of 5s in the machining section. Significant results were obtained from the original OEE value in the period January-May 2022 of 43.11% which could be increased in June - October 2022 with details of tapping machines at85%, drilling machines at85%, and fine machines boring at 85% so that the OEE value is 85%.
Analisis Pengendalian Kualitas Produk Handle Fr Mnl Seat No.1 (FRONT)/Handle Seat Track (YHA) Dengan Metode Six Sigma di PT. Chiyoda Industri Indonesia
Authors: Salsabila Shelma Maudy , Darmawan Heru , Prasetya Dwi Indra
Published: September 2024

PT. Chiyoda Industri Indonesia is a company involved in the automotive sector making car seat frames. One of the products is FR MNL Seat No.1 (Front) Handle/Handle Seat Track (YHA). Analysis using the quality control tool that is six sigma to determine the possibility of defects that often appear and find out the failure rate per million opportunities (DPMO). As an evaluation material for PT. Chiyoda Industri Indonesia in responding to demands from QC gate regarding defective products that are still found and potentially sent to customers. Analyzing defective samples in November 2022 - December 2022. The six sigma method consists of 5 stages. The stages are DMAIC which can be described as define, measure, analyze, improve and control. It was found that the sigma value is 3.2887 which is reaching the average level of the manufacturing industry in Indonesia and the number of DPMO is 41413.1299. Cause and effect diagram analysis of the most critical types of defects include pitch hole grooves with 50.1%, bending dimensions with 31.6%, pressing dimensions with 12.6%, swaging assy missing with 3.1%, and dents with 2.6%. From the analysis of the cause and effect diagram, it can be seen that the material factor is the focal point of the cause of defects until the material flows. And from the 5W+1H analysis, it is concluded that every process needs kaizen. In the FMEA analysis, the biggest problem is the grooving process which is the cause of the material not meeting the criteria of the process results on the previous machine, namely swaging large holes, long side bending, and top press with RPN 216.
Reduction of Computational Complexity in Multistage DS-CDMA System
Authors: Ravindrababu J. , Swathi Dasi , Teja J. V. Ravi , Chandra J. V. Ravi , Bhavani S. Pujitha , Sweekar S. , Sreeja A. Naga
Published: September 2024

Multiple Access Interference (MAI) is one of the major problems that limit the system capacity of Direct Sequence-Code Division Multiple Access (DS-CDMA) Wireless Communication Systems. The reduction of MAI to improve system capacity without increasing computational Complexity is the motivation to do this work. The objective of this paper is to develop efficient multiuser detection algorithms that improve the DS-CDMA system performance i.e., to achieve a low Bit Error Rate (BER) and high Signal to Noise Ratio (SNR) with less computational complexity. The BER performance of the multistage multiuser detection schemes using Kasami spreading sequences and MMSE detector is found to be better than that of a conventional Matched Filter detector in a single-stage multiuser detection scheme but the Computational Complexity increases with the number of stages and the number of users. The BER performance of the multistage multiuser PIC detection scheme is found to be better than that of a single-stage multiuser PIC detection scheme but at the cost of computational complexity increasing with a number of stages and users. It is found that the BER performance of the multistage multiuser PPIC detection scheme is better than that of the multistage multiuser PIC detection scheme but the computational complexity increases. Though the computational complexity is found reduced in the multistage multiuser DPIC when compared to the multistage multiuser PIC, the BER performance remains almost the same as that in multistage multiuser PIC.
PROSPECTS OF INCREASING THE ROLE OF COMPANIES IN ATTRACTING PORTFOLIO INVESTMENTS TO THE NATIONAL ECONOMY
Authors:   PhD student of Kimyo International University in Tashkent, Uzbekistan, ogli Vasikov Abduvahob Ravshan
Published: September 2024

This article focuses on the role and relevance of joint stock companies in the development of the capital market. The possibilities of diversifying the mechanism of financing the activities of joint-stock companies through the development of the national capital market have been studied. In the following years, the stock market trading volume, the participation of joint-stock companies in stock trading was analyzed. Scientific proposals and comments on the development of the national capital market are presented.
Variantes anatómicas en el abordaje radiológico de la OI
Authors: Tobón Arango Juan Mario , Campo Rocha Juan David , Dorado Rosero Dalila Alejandra , Ramírez Yepes Néstor Fabián , Buitrago Orrego Juan José , Benavides Hurtado Héctor Henry , Bula Cardona William Esteban
Published: September 2024

Se denomina obstrucción intestinal al bloqueo parcial o total del paso de líquidos y alimentos digeridos a través de los intestinos, tal patología puede clasificarse como obstrucción del intestino delgado (OID), obstrucción del intestino grueso (OIG) y obstrucción compuesta. Dentro de la clínica, cuando ocurren los síntomas, con frecuencia causa dolor abdominal, náuseas, vómitos, estreñimiento, constipación y distensión. Estás manifestaciones varían en orden de aparición e intensidad dependiendo el nivel de oclusión. Radiológicamente, dependiendo de su ubicación, es posible identificarlas en los diferentes examenes imagenologicos. En una radiografía simple, al igual que en otros casos de obstrucción mecánica, se pueden observar asas intestinales distendidas con niveles hidroaéreos y ausencia de gas en el área distal, adicionalmente, existen variantes anatómicas como hernias internas, vólvulos y malrotación intestinal las cuales presentan características fisiopatológicas y manifestaciones clínicas únicas que alteran la motilidad intestinal y pueden desencadenar complicaciones graves, tales como isquemia y sepsis, incluso, algunos pacientes requieren ingreso quirúrgico de emergencia lo que comúnmente se relaciona con una alta mortalidad del 3% al 30% en todo el mundo. Por tal razón, en el presente artículo de revisión se abordan las diferentes variantes anatómicas observables en radiología para el temprano manejo de la OI.
Desafíos para la Educación e Inclusión de Infantes Migrantes en Tabasco
Authors: Córdova Ramírez Maritza del Carmen , Gómez López Edna María
Published: September 2024

La migración de niños, niñas y adolescentes no acompañados es un fenómeno creciente y crítico en América Latina, con México y el estado de Tabasco como puntos de tránsito clave. Estos menores enfrentan múltiples desafíos, incluidos la falta de acceso a la educación, el riesgo de detención en condiciones inadecuadas y la discriminación. El "Programa Interinstitucional para la Educación de Niños, Niñas y Adolescentes Migrantes no Acompañados", desarrollado por la UJAT en colaboración con el DIF, busca abordar estas necesidades proporcionando una educación inclusiva y un apoyo psicosocial adecuado. A través de estrategias como la gamificación y actividades culturales, el programa facilita la adaptación de los menores y promueve su bienestar emocional. Sin embargo, persisten obstáculos significativos, como la falta de recursos financieros, la necesidad de una mayor formación de los educadores y la discriminación en las comunidades locales. La sostenibilidad del programa depende de una mayor coordinación interinstitucional y del desarrollo de un modelo de financiación sostenible. Es fundamental continuar con los esfuerzos para proteger los derechos de estos menores y garantizar su acceso a una educación de calidad, promoviendo así una mayor inclusión social y equidad en la región.
Multi-level Optical On-Off Line Code for Flat-like Power Spectral Density: Outdoor Visible Light Communications
Authors: Nlend Samuel , Swart Theo G.
Published: September 2024

This paper suggests a multi-level optical line code using an On-Off technique that enhances the performance of optical communication systems with flat-like power spectral density (PSD) such as outdoor visible light communications. The proposed technique based on a controlled multilevel coding and a multistage decoding of 𝑀 = 2𝑙 modulation signals, consists of designing the code using a balance distance rule that maximizes the minimum Euclidean distance and minimizes the number of nearest neighbours, with the aim to achieve a better system capacity and error protection. Through a controlled correlative level technique by an optical orthogonal code (OOC) time sequence, each obtained symbol is assigned an elementary signal within the same symbol duration using the conventional Miller coding. The constraints of an OOC sequence add a coding complexity that is dealt with using a synchronized error technique, where the error is recovered through an adapted time diversity decoding technique during the multi-stage decoding (MSD). The resulting M asymmetric signals are differentiated by l time transition levels and 𝑀 = 2𝑙 1-dimension space distances to produce M-ary On-Off Keying (OOK) signals. These signals are transmitted in accordance with the correlation properties of the OOC sequence, hence OOK OOC. An analytical investigation conducted on an 8 OOK OOC, compared with an amplitude shift keying (8-ASK) of the classical Ungerboeck (UG) and the unequal error protection (UEP) methods, has shown an improved level of signal-to-noise ratio (SNR), and consequently a better possible data rate.
Comparison of Deep Learning and Incremental Learning Model for Net Load Forecasting
Authors: Chupong Charnon , Junhuathon Nitikorn , Dangeam Sirichai , Plangklang Boonyang
Published: September 2024

This paper presents hourly net load forecasting, which is the forecasting of the difference between the hourly demand and the hourly power produced from the Photovoltaic (PV) system, which is the load that the utility should supply to the consumer. By comparing the forecasting of the 3 models, 1) Long Short-Term Memory (LSTM), which is a deep learning model, 2) Fully Online Sequential Extreme Learning Machine (FOS-ELM), which is an incremental learning model that does not require initial training data and 3) Online Sequential Extreme Learning Machine (OS-ELM), a model that can be incrementally learned as FOS-ELM. In addition, we proposed the initial training method for the OS-ELM model by taking the first sample obtained from working to synthesize a sufficient amount of sample for the initial training of the OS-ELM model. It was found from the experiment that in the case of fixed PV penetration rate, the LSTM model had slightly lower of error in forecasting than the other two models. In the case of increasing PV penetration rate, the FOS-ELM, and OS-ELM models, with incremental learning capacity, had significantly lower errors in forecasting than the LSTM model. When comparing only the OS-ELM model using the proposed method with the FOS-ELM model, it was found that the OS-ELM model gave lower errors in forecasting than the FOS-ELM model because it was initially trained by the synthetic sample properly,
Assessments of Power Systems Voltage Stability Considering Transmission Line Security
Authors: Wongta Dumrongsak , Uatrongjit Sermsak , Rakpenthai Chawasak , Pothi Nattapong
Published: September 2024

This paper presents two indicators, namely line voltage stability and line ampacity indices, to determine the voltage stability states and line security of power systems under various operating conditions. Both indices rely on the measured values that are already obtained from conventional measurements used in power systems. The identification of weak buses and critical lines based on the proposed indices is possible using only voltage magnitude and real power measurements. To validate the effectiveness of the proposed indices, two power networks have been tested under increasing system loading and line outage conditions. Numerical experimental results indicate that by considering both line voltage stability and line ampacity indices, power systems could mitigate the risks of voltage collapse and excessive current in transmission line.
Cryptocurrencies and Market Efficiency: Investigate the Implications of Cryptocurrencies on Traditional Financial Markets and their Efficiency
Authors: Akuoko-Sarpong Roland , Tawiah Gyasi Stephen , Affram Hannah
Published: September 2024

The creation of cryptocurrencies has signified many consequences for financial markets of the traditional kind and their effectiveness. This research seeks to explore the effects of cryptocurrencies on a number of the other traditional markets in aspects of price discovery, volatility, interdependence, and information transmission. Event study analysis of everyday price changes and using multivariate cointegration analysis to cryptocurrencies and the evidence is that the cryptocurrencies are inefficient as characterized by irrational behavior, bubbles, and erratically fluctuating volatilities. However, they affect a range of currency, commodity, and stock market indexes by showing return and volatility spillover effects suggesting information flowing from one market to another. Alnet, cryptocurrency markets seem inefficient on their own but over time enhance the efficiency of linked traditional markets through participation and connectivity of global financial systems. The study contributes valuable insights into the evolving nature of financial markets in the digital era through discussions on market structure, behavioral factors, and policy implications.
Enrolment of students in Nigerian tertiary institutions: A reflective impact of the slogan ‘who school help'
Authors: Olaseni Vivian Morenike
Published: September 2024

There has been a noticeable decline in enrolment in some Nigerian tertiary institutions, such as colleges of education, polytechnics, and some state-owned universities. Various factors have been identified as influencing this problem. This study aims to investigate the impact of the popular slogan "Who School Help" on post-secondary school enrolment in Nigeria. The study used a descriptive survey research design, collecting both qualitative and quantitative data. A purposive sampling method was used to select participants from Senior Secondary Class 1 to Senior Secondary Class 3. In this category, 565 students were selected. Additionally, 20 participants were accidentally selected based on inclusion criteria, with 10 of them being secondary school graduates and the other 10 being graduates from tertiary institutions. The study found that all participants claimed to be familiar with and resonate with the slogan 'Who School Help?' Furthermore, the study revealed that factors such as graduate unemployment rate, salary disparities, and political dynamics motivate the promotion of the slogan as a means to explain the decline in post-secondary school enrolment. In conclusion, the study determined that the popular use of the slogan "Who School Help" among Nigerian youths significantly influences individuals' decisions regarding post-secondary education. The limitations and recommendations of the study were also discussed.
Multi-criteria algorithm development for sustainable transportation in a rapidly changing environment
Authors: Iurasov Aleksei , Iurasova Olga , Ivashko Larisa
Published: September 2024

This study aims to develop an algorithm to optimize road transport delivery costs, with a focus on warehouse selection and delivery planning. The main objectives are to reduce delivery costs and ensure supplier reliability. The study is confined to Ukraine’s southern regions. The algorithm, based on the Pareto front in a two-criteria transport problem, when applied, its selects two additional warehouses from five reserves, finds the best delivery plan, and reduces the total delivery route length, thereby cutting transportation costs. The study concludes by highlighting the algorithm’s potential to enhance transportation efficiency and reliability in Ukraine.
Quantitative study of the causal relationships among the EFQM model 2020 criteria in the Greek public sector context
Authors: Mitsiou Dimitra , Zafiropoulos Kostas
Published: September 2024

This study aims to apply the European Foundation for Quality Management (EFQM) Model 2020 in the Greek Public Sector context and investigate the causal relationships between the model’s criteria. The research uses a structured questionnaire based on the self-assessment tool and the guidelines on the concept and structure of the EFQM Model 2020, translated from English into Greek using forward-backward translation. Two focus groups and a pilot study were conducted to ensure the validity and reliability of the questionnaire. Subsequently, a large-scale quantitative research was conducted using Partial Least Square Structural Equation Modelling (PLS-SEM) to test the research hypotheses on a national sample of 177 managers from public administrative services. The study results indicate that the EFQM Model 2020 is indeed a reliable and valid framework for the study of the public sector and reveal significant relationships between the model’s criteria. The study is one of the first comprehensive investigations of the relationships between the EFQM Model 2020 criteria in Europe and, therefore, provides insights into the understanding of the model. As this research was geographically limited, the findings should be treated and generalised with caution, and further research should be conducted in different contexts.
Gemini Planet Imager Observations of a Resolved Low-inclination Debris Disk around HD 156623
Authors: Lewis Briley L. , Fitzgerald Michael P. , Esposito Thomas M. , Arriaga Pauline , López Ronald , Crotts Katie A. , Duchêne Gaspard , Follette Katherine B. , Hom Justin , Kalas Paul , Matthews Brenda C. , Millar-Blanchaer Maxwell , Wilner David J. , Mazoyer Johan , Macintosh Bruce
Published: September 2024

The 16 Myr old A0V star HD 156623 in the Scorpius–Centaurus association hosts a high-fractional-luminosity debris disk, recently resolved in scattered light for the first time by the Gemini Planet Imager (GPI) in polarized intensity only. We present a new analysis of the GPI H-band polarimetric detection of the HD 156623 debris disk, with particular interest in its unique morphology. This debris disk lacks a visible inner clearing, unlike the majority of low-inclination disks in the GPI sample and in Sco-Cen, and it is known to contain CO gas, positioning it as a candidate “hybrid” or “shielded” disk. We use radiative transfer models to constrain the geometric parameters of the disk based on scattered light data and thermal models to constrain the unresolved inner radius based on the system’s spectral energy distribution (SED). We also compute a measurement of the polarized scattering phase function, adding to the existing sample of empirical phase function measurements. We find that HD 156623's debris disk inner radius is constrained to less than 26.6 au from scattered light imagery and less than 13.4 au from SED modeling at a 99.7% confidence interval and suggest that gas drag may play a role in retaining sub-blowout-size dust grains so close to the star.
Exploration of a Dissolving Association Made Up of IC 2602, Tucana–Horologium, and Other Young Comoving Groups
Authors: Popinchalk Mark , Faherty Jacqueline K. , Gagné Jonathan , Curtis Jason L. , Moranta Leslie , Kiman Rocio , Couture Dominic , Jusino Alyana , Paliwal Gaurav , Mouzakitis Ioannis , Lamisa Nazifa , Calderon Marvin , Tangney Izzy , Lacossade Jonathan
Published: September 2024

Recently Gagné et al. suggested that young moving groups with similar kinematic properties could be part of larger dissolving structures. One example was IC 2602 as the core of a group of associations, including its corona (CIC 2602), Tucana-Horologium (THA), and parts of Theia 92. We explore this hypothesis by measuring the rotation periods of 953 objects selected using Gaia DR3 kinematics from IC 2602, CIC 2602, Theia 92, and a newly identified group of stars that bridge IC 2602 and THA. We use Transiting Exoplanet Survey Satellite (TESS) full frame images to measure new rotation periods and combine these with the rotation periods for THA from Popinchalk et al. to compare their rotation period distributions and other youth indicators where available to examine if the groups could be coeval. We find strong agreement between the rotation distributions of IC 2602, CIC 2602, and THA, suggesting a shared age of ∼40 Myr, and which in combination could serve as an example of a typical distribution at this age. Theia 92 does not agree at the same level, and we explore the potential kinematic reasons it does not match the rotation period distribution of the larger groups. Additionally, in our light curve analysis we identify ∼50 potential binaries, as well as four new M dwarf complex rotators that show major morphological changes between TESS cycles. Finally, using the amplitudes of the rotation periods we measured, we find strong agreement with the amplitude–age relation presented in Morris for our 40 Myr groups.
A Comprehensive Analysis of Textbook-version Afterglow Light Curves of Gamma-Ray Bursts and Implication for Universal Radiation Physics of Baryonic Jets
Authors: Zhang Lu-Lu , Zhong Shu-Qing , Xin Li-Ping , Liang En-Wei
Published: September 2024

The standard external shock model in the thin-shell scenario predicts an onset bump in the early optical afterglow light curves of gamma-ray bursts (GRBs). We collect such a textbook-version light-curve sample of 30 GRBs and derive the jet properties from our joint fit to their X-ray and optical afterglow light curves. It is found that the distributions of the isotropic initial Lorentz factors (Γ0), the deceleration radii (R
dec), and the magnetic field strength (B
0) are log-normal, but the distributions of the isotropic kinetic energy (E
k,iso), medium density (n
0), and magnetization parameter (σ

B
≡ ϵ

B
/ϵ

e
) are tentatively bimodal. A tight R
dec–B
0–σ

B
relation is found. It infers a universal ϵ

e

E
k,iso among bursts, plausibly supporting the previous argument of a universal GRB radiation energy among GRBs. A jet break is required for modeling the light curves of 26 GRBs. The distributions of the jet opening angles and the jet-corrected kinetic energies log-normally center at

log

θ

j
,
c

/

rad
=
−
1.51

(standard deviation σ = 0.27) and

log
(

E

k
,
j
,
c

/

erg
)
=
51.78

(σ = 0.54), respectively. Those GRBs (19 GRBs), whose prompt gamma-ray emission is well estimated with broad energy-band observations, satisfy the previously discovered L

γ,p,iso–E
p,z–Γ0 relation, and their gamma-ray radiation efficiencies log-normally distribute in the range from 0.04% to 10% with a central value of 0.42%. Such a low efficiency favors the baryonic fireball model, and the distribution of their baryon mass loading in the GRB ejecta log-normally centers at

log
(

M

fb
,
c

/

M

☉

)
=
−
5

(σ = 0.75).
Novel operators in the frame of primal topological spaces
Authors: Alghamdi Ohud , Al-Omari Ahmad , Alqahtani Mesfer H.
Published: September 2024

Our aim in this paper is to define more concepts that are related to primal topological space. We introduce new operators called $ \gamma $-diamond and $ \gamma^\ast $-diamond and explore their main characterizations. We provide results and examples regarding to these operators. Using these new operators, we create a weaker version of the original topology. Additionally, we present some results related to compatibility.
Some remarks on recursive sequence of fibonacci type
Authors: Attia Najmeddine
Published: September 2024

This paper presents a detailed procedure for determining the probability of return for random walks on $ \mathbb{Z} $, whose increment is given by a generalization of a well-known Fibonacci sequence, namely the $ k $-Fibonacci-like sequence $ (G_{k, n})_n $. Also, we study the size of the set of these walks that return to the origin an infinite number of times, in term of fractal dimension. In addition, we investigate the limiting distribution of an adequate Markov chain that encapsulates the entire Tribonacci sequence $ ({\mathsf T}_n) $ to provide the limiting behavior of this sequence.
Tale of a missed diagnosis: Papillo-renal syndrome
Authors: Paul Abhik , Lakra Niva , Jesmin Saherin , Datta Supratim
Published: September 2024

No abstract available