bluuebunny/crossref_metadata_2025 huggingface dataset:
INVESTIGATION OF THE INFLUENCE OF WATER TREATMENT IN BOOK CONSERVATION PROCESSES ON THE COLOUR CHARACTERISTICS OF PAPERS
Authors:   ", Spiridonov Iskren ,   Department of Printing Arts, Pulp and Paper, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski blvd., Sofia 1756, Bulgaria", Boeva Rumyana ,   "Department of Printing Arts, Pulp and Paper, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski blvd., Sofia 1756, Bulgaria", Ivanova Iordanka ,   “St. St. Cyril and Methodius” National Library of Bulgaria, 88 Vasil Levski blvd., Sofia 1504
Published: October 2024

The conservation and restoration of books, documents and manuscripts is aimed at prolonging the life of our written cultural heritage, mainly written on paper, leather and parchment. The main aim of conservation is to preserve the integrity of the object and to prolong its life. In the present experiment, a study was conducted to evaluate the effect of water treatment in the conservation treatment of books on the colorimetric characteristics of paper. Unrestored books were selected from the archive of the Bulgarian National Library "St. St. Cyril and Methodius", and the study was conducted in the restoration center of the library. Water treatment of all pages of the book have been done and the colorimetric characteristics before and after water treatment have been measured with a spectrophotometer. Color difference - ∆E, lightness difference - ∆L and hue difference - ∆h, between samples before and after water treatment have been calculated. From the obtained results, the effects and changes of the all investigated colorimetric parameters were determined. These results are important from a practical and scientific point of view. The results could be used as valuable information for restoration centers worldwide
BOOKBINDING OPERATIONAL PLANNING AND SCHEDULING OPTIMIZATION WITH DEEP LEARNING ALGORITHMS
Authors:   University of Zagreb, Faculty of Graphic Arts, Zagreb, Croatia, Bratić Diana , Pasanec Preprotić Suzana ,   University of Zagreb, Faculty of Graphic Arts, Zagreb, Croatia,   University of Zagreb, Faculty of Graphic Arts, Zagreb, Croatia, Jurečić Denis ,   University of Zagreb, Faculty of Graphic Arts, Zagreb, Croatia, Šapina Marko ,   University of Zagreb, Faculty of Graphic Arts, Zagreb, Croatia
Published: October 2024

This work focuses on the scheduling optimization of the bookbinding process through the application of industrial engineering principles, complemented by artificial intelligence as a key factor in achieving operational efficiency. Flexibility and the need to adapt quickly to fluctuating market conditions in the publishing industry present challenges that require precise operational planning. This includes detailed planning of resources such as time, labour and machinery as well as the optimization of technical and technological processes. Each subprocess is meticulously documented in technological specifications, which precisely describe manufacturing process, product specifications and required quality controls. By analysing input and output parameters in four case studies, a mathematical model was developed to optimize the production process for soft book binding. The model is based on deep learning algorithms that analyse extensive data about the production process and enable an accurate prediction of the optimal production parameters based on current demand and production capacities. For this purpose, an artificial neural network was constructed, which is considered suitable due to its ability to learn complex patterns from data and generate predictions or recommendations based on a large amount of input data. The artificial neural network consists of input, hidden and output layers, each using an activation function that determines the activation of the neurons based on the input data. When training the artificial neural network, the weighting factors between the neurons in the hidden layers are adjusted to minimize the errors between the actual and predicted results. This architecture enables the artificial neural network to learn complicated data patterns and use the derived model for predictions and optimization of the production process in bookbinding. In addition, the model’s predictions facilitate continuous monitoring and analysis of product quality, identifying potential defects or problems before they impact production. By integrating this model, bookbinderies are able to continuously improve their production process and thereby achieve greater efficiency and competitiveness in the market
The relationship between the state of cerebral blood flow and volemic status in patients with ischemic stroke in the acute period
Authors: Mikhailov E. V. , Pasechnik I. N. , Korochkina G. V.
Published: October 2024

The objective was to assess the relationship between the state of cerebral blood flow and volemic status in patients with acute ischemic stroke using the laboratory and instrumental parameters.

Materials and methods. 51 patients with newly diagnosed ischemic stroke confirmed by MSCT/MRI of the brain were examined within less than 24 hours from the onset of the disease, and 20 practically healthy individuals (control group). To determine cerebral blood flow, the hemodynamic parameters of transcranial Doppler imaging were used: blood flow rates (maximum systolic, diastolic, averaged over time), Gosling’s pulsatility index and Purcelo’s index of peripheral resistance in the anterior, posterior, middle and main cerebral arteries from the affected and intact sides. Volemic status was assessed using laboratory (serum sodium and brain natriuretic peptide NT-pro-BNP) and instrumental parameters (echocardiography – end-diastolic volume of the left ventricle, left ventricular ejection fraction, diameter and degree of collapse on inhalation of the inferior vena cava).

Results. Deterioration of the state of cerebral blood flow by speed indicators and an increase in the resistance parameters of the vascular wall was noted in the studied affected and intact arteries against the background of violations of the volemic status by the level of brain natriuretic peptide, end-diastolic volume of the left ventricle, diameter of the inferior vena cava, left ventricular ejection fraction and degree of collapse of the inferior vena cava. There is a correlation of vascular wall resistance parameters with laboratory and instrumental indicators of volemia, since both the development of deficiency and volume overload negatively affect cerebral perfusion.

Conclusions. The cerebral blood flow parameters are correlated with the volemic status of patients with ischemic stroke in the acute period.
Perfusion index as an early predictor of hypotension during advanced oncothoracic operations (pilot study)
Authors: Zimina L. A. , Bushuev A. S. , Arutyunyan R. A. , Zhikharev V. А.
Published: October 2024

Introduction. Current standards of intraoperative monitoring significantly reduce the response time to a decrease in blood pressure, but do not include methods for predicting changes in hemodynamics to avoid the effects of systemic hypoperfusion.

The objective was to evaluate the usefulness of determining the perfusion index for predicting the development of hypotension and its earlier correction during advanced oncothoracic operations.

Materials and methods. A prospective open-label observational study was conducted, which included 100 patients who underwent elective oncothoracic surgery. Standard monitoring was established, as well as continuous monitoring of the perfusion index. The perfusion index value was recorded immediately before induction. The patients were divided into 2 groups: in the 1st group (n = 37), patients experienced a decrease in blood pressure, requiring vasopressor support; in the 2nd group (n = 63), no vasopressor support was required.

Results. A moderate linear relationship was revealed with a correlation coefficient (r) equal to (–0.68), p < 0.001, and a strong non-linear relationship with a coefficient (ρ) equal to (–0.95), p < 0.001. To identify the relationship model, polynomial regression analysis was performed. A prognostic formula for the use of vasopressors was calculated depending on the preoperative level of perfusion index. At the next stage, a classification tree for analyzing the data array was used. The entire d data array (n = 100) is randomly divided into training (n = 70) and test samples (n = 30). It was revealed that hypotension requiring vasopressor support occurred in patients whose initial perfusion index was ≤ 2.85. ROC analysis determined an AUC of 0.952 (95% CI: 0.888–1.016).

Conclusion. A low PI value before induction of anesthesia during advanced oncothoracic operations can be used to monitor the functional activity of the autonomic nervous system and predict intraoperative hypotension. Patients with a baseline PI ≤ 2.85 have a higher risk of developing hypotension during advanced oncothoracic surgery compared with those with a baseline PI ≥ 2.85. The effectiveness of the method in patients with concomitant pathologies has not been tested.
Features of refeeding syndrome in pediatric intensive care unit patients (literature review)
Authors: Lisitsa I. A. , Aleksandrovich Yu. S. , Zavyalova A. N. , Lisovskii O. V. , Novikova V. P. , Pogorelchuk V. V.
Published: October 2024

Introduction. Restoration of nutrition in patients with nutritional deficiency hospitalized in intensive care units is a complex process due to the high risk of the development of refeeding syndrome. Refeeding syndrome is insufficiently studied in children not only with regard to pathogenesis and intensive care, but also with regard to its influence on the further development of the child.

Materials and methods. A non-systematic review of literature sources was performed. Domestic publications were searched in the database on the eLibrary website, foreign publications were searched in PubMed, Google Scholar, Cophrane Library, Cyberleninka, ResearchGate databases in the period 2017–2024. 73 full-text publications describing risk factors, peculiarities of mechanisms of refeeding syndrome development in children, clinical picture and methods of intensive therapy were analyzed.

Results. The review analyzed and systematized the stratified risk factors, peculiarities of pathogenesis and clinical picture of refeeding syndrome in children depending on developing metabolic disorders. The connection of refeeding syndrome on the progression of nutritional deficiency is shown. The main methods of intensive therapy, including nutritional support for patients with high-risk and developed refeeding syndrome are determined.

Conclusion. Currently, there is no unambiguous definition and diagnostic criteria for refeeding syndrome in children. Timely intensive therapy in cases of refeeding syndrome development allows to correct nutritional deficiency, to increase the survival rate of patients, can influence further growth and development of the child.
A systematic review on the efficacy of multidisciplinary approaches in the management of chronic pain
Authors: Alghanim Hassan , Almahdi Muhammad , Alahmadi Ahmad , Salah Amal , Arfaj Yara , Aldakhil Lama , Alsoairy Khaled , Alresaini Haitham , Alali Mohammed , Aldanyowi Saud
Published: October 2024

Background: Chronic pain presents widespread challenges globally. Multidisciplinary team (MDT) interventions have emerged as comprehensive approaches involving specialists from various medical fields to address the complexities of chronic pain management. This systematic review aims to synthesize evidence about the efficacy of multidisciplinary approaches in the management of chronic non-specific musculoskeletal pain.
Methods: This systematic review included randomized controlled trials (RCTs) of adults with chronic non-specific musculoskeletal pain. Multidisciplinary treatments involve at least three of: psychotherapy, physiotherapy, relaxation techniques, medical treatment, patient education, or vocational therapy. Exclusions were specific pathological entities, non-English studies, and follow-up less than 1 month. Searches were conducted across Cochrane Evidence Library, PubMed, and EMBASE. Primary outcomes encompass pain intensity, quality of life, disability, and other functional measures.
Results: Of the 100 articles identified, 6 studies met the inclusion criteria. These RCTs were conducted in Western countries, published between 2008 and 2019, and their sample size ranged from 132 to 401. Their interventions included Comprehensive Symptom Management (CSM), Assistance with Pain Management (APT), physiotherapy, and telecare management. Two studies found significant improvements in pain intensity, while one demonstrated improved social functioning. However, no study found significant differences in disability scores or mental health outcomes. None of the studies assessed patient satisfaction with the interventions.
Conclusion: MDT interventions for chronic pain show promise in improving pain intensity, particularly with CSM and APT. To strengthen these findings and address study limitations, future research with larger sample sizes is necessary.
Die hypnotische Trance als »via regia« in der Hypnosepsychotherapie?
Authors: Meisert Isabelle
Published: October 2024

Warum dürfen wir behaupten, mit hypnotischer Arbeit dem Unbewussten näherzukommen? Welche psychodynamischen Mechanismen werden in der hypnosetherapeutischen Arbeit aktiviert? Was »erzählt« die hypnotische Trance?

Diese Fragen möchte die Autorin erörtern. Sigmund Freuds Texte und im Besonderen die »Traumdeutung« werden herangezogen, um zu zeigen, wie es gelingt, durch Verschiebung und Verdichtung verdrängte Wünsche unbewusst zu halten. Ist das Verständnis über die Traumarbeit eine Brücke zum Verständnis der Trancearbeit und deren Zugang zum Unbewussten?

»Das Unbewusste ist wie eine Sprache strukturiert« (Lacan 1973, S. 26). Die Autorin versucht diese Lacanschen Aspekte zu beschreiben und in ihre hypnosepsychotherapeutische Arbeit zu integrieren.

Aber auch unabhängig von Theorie und strukturierenden Formeln lesen wir: Das Unbewusste hat eine »Stimme«. Die Autorin erlaubt sich herauszuarbeiten, dass in der hypnotischen Trance die »Stimme« des Unbewussten auf dieselbe Weise erkennbar wird wie im Träumen oder Sprechen.

Aber sie erlaubt sich auch darauf hinzuweisen, dass hypnotische Trancearbeit nicht »direkt ins Unbewusste« führt. Dass auch in der hypnotischen Trance etwas zunächst »sinnleer« erscheinen kann. Die Auseinandersetzung mit Lacans Signifikanten und deren ersetzenden oder verschiebenden Funktion kann dann dabei helfen, sich dem Streben, alles Unbekannte in Sinn zu transformieren, zu widersetzen. Gerade weil es zwar sinnleer, aber nicht unsinnig ist.
Acesso lexical em universitários com TDAH
Authors: Almeida Priscilla de Albuquerque , Leite de Sousa Soares Nathália , Pinheiro Karla Araújo , Neto José Ferrari
Published: October 2024

O Transtorno de Déficit de Atenção/Hiperatividade (TDAH) é um transtorno do neurodesenvolvimento resultante de déficits do controle executivo. O reconhecimento e o acesso lexical de palavras do tipo blends podem ser mais custosos nos universitários com TDAH. O objetivo geral foi investigar se os blends são processados mais rapidamente que palavras morfologicamente complexas entre os grupos experimental (GE - com TDAH) e controle (GC - sem TDAH). Ainda, buscou-se: i) verificar a influência do controle executivo no acesso lexical de palavras complexas e dos blends, ii) comparar o desempenho entre o GE e o GC para analisar se as distinções cognitivas repercutem no acesso lexical e constatar os tipos de palavras que facilitam e os que dificultam o processamento. Participaram 18 universitários do GE e 8 universitários do CG com idade entre 21 e 47 anos. Para testar o controle executivo, o design experimental englobou as condições congruente, incongruente e neutra nos blends e nas palavras morfologicamente complexas em uma Tarefa de Decisão Lexical com Simon Task. A hipótese proposta é a de que o GE teria mais dificuldades no reconhecimento e acesso lexical de blends e maior tempo na tomada de decisão lexical em comparação com o GC, pois essa tarefa exige uma maior demanda do controle executivo, algo que os sujeitos com TDAH possuem mais falhas. O GE iria cometer mais erros na condição incongruente e seriam mais lentos nos tempos de reação em comparação com a condição congruente. Os resultados preliminares revelaram efeitos principais de grupo, de tipo de palavra e de condição. Observou-se também que houve efeito de interação apenas entre grupo e tipo de palavra. O GE mostrou-se ser mais lento que o GC. Dessa forma, os resultados caminham na direção da hipótese proposta e,  diante disto, pretende-se ampliar a amostra de voluntários para averiguar se estas tendências permanecem ou se modificam.
An analytical observational study for diagnostic accuracy of volume, conductivity & scatter (VCS) indices of neutrophils for diagnosis of sepsis in an emergency hospital setting
Authors: Bharti Anandita , Palta Anshu , Bedi Ravneet Kaur , D′Cruz Sanjay
Published: October 2024

Background & objectives

The newer technique using an innovative volume conductivity scatter (VCS) technology is emerging as a surrogate for sepsis diagnosis. The VCS technology offers a more objective method to measure cell volume (V), characterize conductivity (C) and light scatter (S) directly from more than 8,000 white blood cells (WBCs). However, diagnostic performance of VCS parameters in sepsis has not been extensively tested in routine hospital emergency settings. Therefore, the present study aimed to investigate the diagnostic and prognostic performance of VCS markers of neutrophils in our local hospital emergency setting.

Methods

It was an observational analytical study with 41 cases of sepsis and 43 healthy controls aged above 18 yr. Individuals with acute coronary syndrome and individuals with already diagnosed Human Immunodeficiency Virus (HIV) infection were excluded from the study.

Results

The mean neutrophil volume (MNV) values were not significantly different between cases and controls (P 0.138) whereas mean neutrophil conductance (MNC) and mean neutrophil scatter (MNS) measurements were significantly higher among cases as compared to controls (both P-values <0.001). According to Receiver Operating Characteristics (ROCs) curve analysis, MNV in our study failed to show statistically significant discriminatory ability in sepsis (AUC 0.54) whereas MNC (AUC 0.98) and MNS (AUC 0.95) showed marked discriminatory ability in diagnosing sepsis in this study cohort.

Interpretation & conclusions

Among VCS parameters, MNV failed as a standalone biomarker of sepsis in routine emergency setting whereas MNC and MNS had statistically significant diagnostic and discriminatory accuracies among hospitalized affected individuals with sepsis.
Contingent negative variation for assessment of neurological deficits in children with hypothyroidism
Authors: Ravi Naveen , Bharshankar Rajay N. , Maheshwari Mahesh , Thakre Avinash Eknath , Wakode Santosh Laxman , Krishna Subba , Kamble Prafull , Daulatabad Vandana , John Nitin Ashok
Published: October 2024

Objectives:

Hypothyroidism is one of the most common endocrine disorders. Its effect on the central nervous system is more pronounced, especially in the pediatric age group. Despite receiving adequate thyroid hormone replacement therapy, several patients continue to suffer from neurological impairments including cognitive dysfunction. Contingent negative variation (CNV) is an event-related potential (ERP) that is considered as an indicator of cognitive function. In this study, CNV was recorded in children with hypothyroidism. To the best of our knowledge to date, there have been no studies of CNV in hypothyroidism.

Materials and Methods:

This prospective study included 52 children between 8 and 15 years of age who were newly diagnosed with hypothyroidism. Diagnosis of hypothyroidism was based on laboratory thyroid function tests. CNV ERP was recorded in the enrolled children at the time of diagnosis, 1-month, and 6-month follow-up. Initial CNV (iCNV) and late CNV (lCNV) amplitudes and latencies were recorded each time.

Results:

Although the amplitudes of iCNV and lCNV appeared to increase during follow-ups, the changes were not statistically significant (P > 0.05). Similarly, there appeared to be a modest reduction in latencies of iCNV or lCNV during follow-up; however, these changes were not statistically significant either.

Conclusion:

Our study did not show any significant changes in neurophysiological parameters. This may be attributed to a shorter time period of follow-up of six months and a smaller sample size. There is a possibility that CNV parameters may show more pronounced changes after a prolonged duration of treatment.
ТЕХНОЛОГИЧЕСКИЕ ПРИЕМЫ ПРОИЗВОДСТВА СЕМЯН МС ГИБРИДОВ САХАРНОЙ СВЕКЛЫ МЕТОДОМ ШТЕКЛИНГОВ НА ОРОШЕНИИ
Authors: Кошкин С. С. , Логвинов В. А. , Мищенко В. Н. , Логвинов А. В. , Шевченко А. Г. , Корсун И. Г. , Записоцкий Д. Н. , Плешаков А. А.
Published: October 2024

В производстве семян гибридов сахарной свеклы на ЦМС основе в качестве компонентов скрещивания используются раздельноплодные мужскостерильные и сростноплодные материалы. В статье представлен раздельный способ выращивания гибридных семян, предусматривающий размещение компонентов скрещивания чередующимися полосами, удаление семенников сростноплодного опылителя после окончания массового цветения и получение семян с раздельноплодного мужскостерильного компонента. Рассмотрены технологические приемы производства семян МС гибридов сахарной свеклы методом штеклингов на орошении, особенности влагообеспеченности и системы минерального питания семенных растений, способствующие повышению урожайности и качества семян сахарной свеклы, способы совершенствования технологических приемов посадки, формирования густоты насаждения, выращивания и уборки высадочных семенников сахарной свеклы.

For the production of seeds of sugar beet hybrids on the CMS, male-sterile and fertile plants are used as cross-breeding components. For CMC hybrids, a separate method of growing seeds is shown. It is envisaged to place the components of the hybrid with alternating strips, remove the pollinator plants after fl owering, and obtain seeds from the male-sterile plants. Technological methods of seed production of male sterility (MS) of sugar beet hybrids by the method of shteklings on irrigation are considered. Features of moisture supply and a system of mineral nutrition of seed plants ensuring a high yield and quality of sugar beet seeds. Perfection of methods of planting, formation of density, cultivation and harvesting of seed plants of sugar beet.
Power Flow Analysis in Unbalanced Three-Phase Distribution Systems using Backward/Forward Sweep and Current Injection Methods
Authors: Akmal Zuhdi Muhammad , Husnayain Faiz
Published: October 2024

The electrical power distribution system is a part of the power system that distributes electricity from the transmission network to customers. In the distribution system, imbalances often occur due to the varying load profiles in each phase. This can cause voltage imbalances in the distribution system. This study aims to compare two power flow analysis methods, Backward/Forward Sweep and Current Injection. The study analyses the voltage and power loss conditions on each phase at each bus and line in the three-phase distribution system under unbalanced conditions. Simulations were conducted on two IEEE test buses, IEEE 19-Bus and IEEE 33-Bus with radial configurations. The power flow calculation results using the Backward and Forward Sweep method showed that in the IEEE 19-Bus system, the highest voltage drop percentage occurred on phase b at bus 19, at 3.14%, the highest voltage imbalance percentage occurred at bus 19, at 0.1409%, and the total active and reactive power losses were 7.352 kW and 3.164 kVAR. In the IEEE 33-Bus system, the highest voltage drop percentage occurred on phase c at bus 18, at 5.85%, the highest imbalance percentage occurred at bus 15, at 0.2077%, and the total active and reactive power losses were 19.107 kW and 8.22 kVAR. The percentage difference between the two methods used is less than one percent, indicating that both methods are sufficiently accurate in analyzing power flow in an unbalanced distribution system.
Landslide Monitoring and Warning System Based on Wireless Sensor Network
Authors: Susanto Misfa , Widodo Ahmad Wahyu , Setyawan FX Arinto
Published: October 2024

Landslides are common in Indonesia, often caused by factors like heavy rainfall and high soil moisture levels. The Batubrak mini hydro power plant intake area in Lampung province of Indonesia has experienced landslides, prompting the need for an early warning system. This study presents the development of a cost-effective and efficient real-time landslide monitoring and warning system. The system incorporates sensors to measure accelerometer and vibration parameters, enabling real-time data display through a wireless sensor network and SCADA software. Early warnings are issued when triggers are activated. Three sensor nodes were deployed in the intake area for testing, demonstrating their ability to detect, collect, process, and transmit accelerometer and vibration data to the gateway node.
Features of consumer behaviour in the sphere of fast food catering on the Moscow market
Authors: Timokhovich A. N. , Bekreneva A. A.
Published: October 2024

The article presents the results of the empirical research of consumer behaviour features in the sphere of fast food catering in the Moscow market. The research method is a questionnaire survey with the use of digital technologies. The article reveals the loyalty of consumers to the visited fast food establishments; their motivation to visit new such places is determined; the awareness of consumers about the opening of new fast food establishments is studied; their preferences regarding the use of meal delivery services of these places and staying at them are revealed. The conclusions are formulated that direct visit to fast food restaurants remains a popular social practice among a significant part of consumers; digital meal delivery services of these places is actively used by consumers; visiting fast food establishments and ordering meal delivery there are typical for representatives of low-, middle-, and high-income audience segments; the communication activity of new fast food restaurants being opened is insufficient; the audience’s expectations from visiting these places and ordering food from them are not limited to the satisfaction of basic needs. The results of the research can be useful for the development of marketing strategies and advertising campaigns in the sphere of fast food catering as well as for the adjustment of business strategies of the restaurants.
Communication and information model of the inclusion of digital participation in the evaluation of social processes
Authors: Shekshuev S. V.
Published: October 2024

The evolution and wide use of modern technologies, tools and methods of communication are an integral part of the modern information society. In particular, current communication and information technologies provide an opportunity to create and extract a digital footprint for an individual or a certain group. In relation to the public authorities’ activities, the digital footprint can be used to analyse the reaction of society to their actions more effectively. By researching the digital footprint of social media actors in a particular region, it is possible to determine how the population treats various decisions and measures taken by the authorities. Due to digital participation, citizens have the opportunity and a tool to facilitate the management process at the stages of decision-making. The digital participation generates a digital footprint, the analysis of which provides feedback on the actions of the authorities. The purpose of the article is to propose a communicative and information model for the inclusion of the digital participation in the evaluation of social processes, consisting of mechanisms and interfaces for obtaining information alongside with mechanisms and interfaces for receiving feedback for evaluating the activities of public authorities in the region. The efficiency of the model has been practically proved by the example of a socially significant event in the Oryol region. Using the example of regional management centres, the expediency of introducing the model for evaluating the activities of public authorities in the region through receiving feedback is shown. This will increase the involvement of citizens in the regulation of social processes in the region and improve the quality of management.
Automatic detection of fake reviews at marketplaces using expert-based features and consumers’ reactions
Authors: Borodulina A. N. , Mikhalkova E. V.
Published: October 2024

The article presents the results of a practical study of the features of fake reviews that are described by marketers and other experts. Due to the abundance of fake reviews on marketplaces, consumer trust falls not only in the seller or platform, but in the genre itself. The paper presents the results of automatic classification of reviews from Russian marketplaces into potentially fake and honest ones using modelling of features that experts call labels of a fake review (presence of template words, exclamation marks, emoji, positive sentiment), and machine learning algorithms. To solve the problem, a corpus of 6 288 texts from the Russian marketplaces Wildberries and Megamarket has been collected. The target variable (predicted class) is the ratio of likes and dislikes given to the review by other buyers. The best result is demonstrated by the support vector machine algorithm in binary classification into reviews with a low and high ratings (without neutral ones). The classification model confirms that the formal features identified by experts as indicating fake reviews indeed have predictive potential. The quality of the model is reduced by the imbalance in classes and insufficient number of reviews with buyer reactions in our corpus, which leaves room for further work.
Talent management: features and benefits for the organisation in the conditions of digitalisation
Authors: Krivopuskov V. V. , Aliev M. F.
Published: October 2024

Today, high-performance employees who are capable of rapid learning, have developed adaptability skills to environmental changes and specific competencies, the so-called “talents”, are of particular value to organisations. Such employees represent a strategic asset of the company and can help in the implementation of various business strategies. The talented employee management system allows to identify, develop, and retain such specialists, which in turn helps to reduce staff turnover and improve the efficiency of the team. The introduction of talented employee management is especially important in the context of digital transformation of the economy as it allows to use all the advantages of digital technologies to achieve corporate goals Also, talent management is not an easy task, and its implementation may require significant efforts and resources. Despite the fact that this process is associated with certain difficulties, such as search and selection of talented specialists in highly competitive conditions, its advantages significantly outweigh the possible risks. It is important to understand that talent management requires constant monitoring and adaptation to changing conditions. This paper describes the features of the talent management system and the advantages of its implementation for an organisation in the context of digital transformation of society.
An Enantioselective Approach to (–)-Psiguadial A
Authors: O'Grady Liam , Achtenhagen Marcel , Wisthoff Michael , Lewis Robert , Pfeifer Katarina , Zheng Weifeng , Martin Maxwell , Yap Glenn , Chain William
Published: October 2024

The first enantioselective approach to the antiproliferative natural product (–)-psiguadial A is reported. This approach features the enantioselective synthesis of a complex tricyclic terpenoid precursor, the union of that precursor with a polyketide component by an enolate-ortho-quinone methide coupling reaction to form a highly congested carbon–carbon bond, and an acid mediated intramolecular hydration ring-closure leveraging a fully substituted alkene to generate the unique oxepane core structure of the natural product.
Логика первого порядка на графах равномерного присоединения с заданной степенью вершин
Authors: Малышкин Юрий Андреевич
Published: October 2024

В статье доказывается закон сходимости для логики первого порядка на случайных графах с равномерным присоединением вершин, в которых почти все вершины имеют одинаковую степень. В рассматриваемой модели вершины и ребра вводятся рекурсивно: в момент времени $m+1$ мы начинаем с полного графа на $m+1$ вершине. На шаге $n+1$ добавляется вершина $n+1$ вместе с $m$ ребрами, соединяющими новую вершину с $m$ вершинами, выбранными равновероятно из тех вершин из $1,\ldots,n$, степень которых меньше $d=2m$. Для доказательства закона мы описываем динамику классов логической эквивалентности случайного графа с помощью цепей Маркова. Закон сходимости следует из существования предельного распределения рассматриваемой цепи Маркова.

In this paper, we prove the first-order convergence law for the uniform attachment random graph with almost all vertices having the same degree. In the considered model, vertices and edges are introduced recursively: at time $m+1$, we start with a complete graph on $m+1$ vertices. At step $n+1$, vertex $n+1$ is introduced together with $m$ edges joining the new vertex with $m$ vertices chosen uniformly from those vertices of $1,\ldots,n$, whose degree is less than $d=2m$. To prove the law, we describe the dynamics of the logical equivalence classes of the random graph using Markov chains. The convergence law follows from the existence of a limiting distribution of the considered Markov chain.
О сходимости разностной схемы высокого порядка аппроксимации для модифицированного уравнения влагопереноса дробного порядка
Authors: Бештоков Мурат Хамидбиевич
Published: October 2024

Исследована первая краевая задача для модифицированного уравнения влагопереноса с двумя операторами дробного дифференцирования Герасимова-Капуто разных порядков $\alpha, \beta$. Построена разностная схема повышенного порядка точности на равномерной сетке. Методом энергетических неравенств для решения разностной задачи получены априорные оценки при различных значениях $\alpha, \beta$. Из полученных оценок следуют единственность и устойчивость решения по правой части и начальным данным, а также сходимость решения разностной задачи к решению исходной дифференциальной задачи со скоростью равной порядку аппроксимации.

The first boundary value problem for the modified moisture transfer equation with two Gerasimov-Caputo fractional differentiation operators of different orders $\alpha, \beta$ is studied. A difference scheme of a higher order of accuracy is constructed on a uniform grid. A priori estimates for different values of $\alpha, \beta$ are obtained by the method of energy inequalities for solving the difference problem. The obtained estimates imply the uniqueness and stability of the solution with respect to the right-hand side and initial data, as well as the convergence of the solution of the difference problem to the solution of the original differential problem at a rate equal to the order of approximation.
Análisis de necesidades empresariales en el sur occidente de Colombia, como insumo del diseño de estrategias que aporten al desarrollo regional desde la academia
Authors: Rojas López Johanna , Vargas Acuña Leidy Carolina , Castillo Peña Fabián
Published: October 2024

El Sur Occidente de Colombia se destaca por su riqueza cultural y geográfica, consolidándose como un epicentro económico y social con un potencial considerable en los sectores agrícola, industrial y de servicios. En este contexto, el gobierno ha implementado diversas leyes y políticas gubernamentales dirigidas a fortalecer el sector empresarial. Algunas de estas iniciativas reconocen el papel crucial de la academia y fomentan la integración entre estos dos actores. Un ejemplo de ello es la Ley de Ciencia, Tecnología e Innovación (Ley 1286 de 2009), que marca pautas claras para promover la colaboración entre el ámbito académico y empresarial en pro del avance científico y tecnológico del país. Este estudio se enfoca en identificar y analizar las necesidades específicas del entorno empresarial en el Sur Occidente Colombiano, para informar el diseño de estrategias pertinentes y coherentes desde la academia. Para ello, se adoptará un enfoque metodológico mixto que combina técnicas cualitativas y cuantitativas. Este enfoque incluyó la realización de una encuesta semiestructurada a empresarios locales, y una entrevista dirigida a empleadores. El objetivo primordial de esta investigación radica en fortalecer la relación entre la academia y el sector productivo, en línea con políticas gubernamentales que promueven la integración de estos actores clave. Se espera que los resultados proporcionen una comprensión de las necesidades del entorno empresarial y generen recomendaciones para diseñar e implementar estrategias que consideren desde programas de investigación conjunta hasta proyectos de formación especializada, que permitan fomentar la innovación y mejorar la competitividad empresarial en el Sur Occidente de Colombia.
Recursive Computation of Rayleigh- Rayleigh Distribution via Ordered Random Variates
Authors: Khan M. I.
Published: October 2024

Ordered random variables (ORVs) are of great importance in statistical science. These random variables are organized in increasing order called generalized order statistics (GOS). It has tremendous applications in engineering and science due to the inclusion of ordered random variables. This article addresses recursive moments of Rayleigh-Rayleigh distribution using order random variables. Such moments are applicable in studying the characteristics of random variables in increasing order such as time to failure of an electronic devices. The characterization result is also obtained by simple moments.
«TO ESTABLISH A CUSTOMS OUTPUT ON THE SOUTH COAST OF THE CRIMEA PENINSULA IN THE VILLAGE OF YALTA…»: ON THE HISTORY OF THE CREATION AND ACTIVITIES OF YALTA CUSTOMS AND THE SOUTHERN DETACHMENT OF THE TAURIDA BRIGADE OF BORDER GUARD
Authors: Prokhorov Dmitry
Published: October 2024

The article examines the history of the creation and activities of the Yalta customs outpost (later the Yalta customs), which celebrated its 200th anniversary in 2024. Based on archival documents, some of which are being introduced into scientific circulation for the first time, as well as previously published statistical materials, collections of the customs department and other official publications of the Ministry of Finance of the Russian Empire, the main stages of interaction between customs institutions, border and quarantine guard units operating in the Taurida province are determined in the 19th century. The work of these authorities in peacetime and the features of their functioning during the Crimean (Eastern) War of 1853–1856 and the Russo-Turkish War of 1877–1878 had been analyzed. Measures aimed at optimizing the work of these units in difficult conditions of combat operations and occupation of the Crimean Peninsula by the enemy had been studied. The specifics and sources of formation of personnel of the Yalta customs outpost, units of the Taurida border guard brigade, and quarantine guard units stationed in the province had been identified. It is concluded that the organization of customs, quarantine and border services on the territory of the Taurida province, namely, on the southern coast of Crimea in the 19th century was well thought out and fully consistent with local specifics, since the peninsula was not only the center of external and internal trade operations in the Northern Black Sea region, but also the most important region in geopolitical and strategic terms. Russia, which has repeatedly faced the need to eliminate external threats while simultaneously increasing its economic potential, has taken the necessary steps to ensure the normalization of the activities of customs institutions in the region.
A STUDY ON THE IMPACT OF MENTAL HEATH ON ACADEMIC ACHIEVEMENT OF SECONDARY-LEVEL SCHEDULE TRIBE STUDENTS IN UTTAR-DINAJPUR DISTRICT
Authors: Paul Ananta , Acharya Shnaoli Chakraborty
Published: October 2024

Adolescence is the transitional stage of development between childhood and adulthood, representing the period during which a person experiences a variety of biological and emotional changes. During this period, adolescents suffer from various forms of problems, dysfunctions, and conflicts, which ultimately impair normal psychosocial development, aggravating psychosocial dysfunction. The mental health of adolescents is significantly important, as this is the stage where they are developing into adults who should be responsible and committed to adult roles and responsibilities. The aim of the present study is to determine the impact of mental health on the academic achievement of secondary-level Scheduled Tribe students in the Uttar-Dinajpur District. Additionally, it looks at the differences between mentally healthy and unhealthy boys and girls and examines whether these variables are related in mentally healthy and unhealthy students. For this purpose, 200 Scheduled Tribe adolescent students were selected based on inclusion criteria and were divided into two groups: Mentally Healthy (N=100) and Mentally Unhealthy (N=100), according to the GHQ-28. These two groups were further subdivided by gender: Boys (N=50) and Girls (N=50) in both groups. The results indicate that mentally healthy Scheduled Tribe adolescents have higher academic achievement compared to their mentally unhealthy counterparts. When adolescent boys and girls are compared regarding mental health and academic achievement, no significant differences are found.
SUSTAINABLE GROUNDWATER MANAGEMENT: EVALUATING LEGAL FRAMEWORK AND CHALLENGES
Authors: Kumar Abhishek
Published: October 2024

Groundwater is an essential resource for agriculture, drinking water, and industrial use, especially in water-scarce regions like India. However, unsustainable extraction, pollution, and a fragmented regulatory framework have resulted in significant groundwater depletion and contamination. This article presents a comprehensive analysis of the legal framework governing groundwater management in India, with a specific focus on its alignment with principles of sustainability and the challenges encountered in achieving Sustainable Development Goal 6 (Clean Water and Sanitation). The paper evaluates national and state-level laws, including the 2017 Model Groundwater Bill, and assesses the effectiveness of institutional mechanisms such as the Central Ground Water Authority (CGWA). The study also explores the role of judicial interventions in shaping groundwater governance and presents policy recommendations aimed at promoting sustainable groundwater use, ensuring equitable access, and protecting groundwater-dependent ecosystems. In doing so, the article emphasizes the need for an integrated approach that combines legal reforms and community-driven initiatives to safeguard groundwater resources for future generations.
Entre el peronismo, el kirchnerismo y más allá: Veinte años de estrategias políticas en Argentina (2003-2023)
Authors: Retamozo Martín , Trujillo Salazar Lucía
Published: October 2024

Este artículo examina las diversas estrategias políticas empleadas por el peronismo  desde su llegada al poder en 2003 con Néstor Kirchner hasta la derrota en las elecciones presidenciales de 2023 en Argentina. El análisis revela cómo las estrategias denominadas "transversalidad," "Concertación Plural," "Partido Justicialista," "Unidos y Organizados," "Unidad Ciudadana," "Frente de Todos," y "Unidad por la Patria," se corresponden con distintas formas de acción en los escenarios políticos fundamentales para la democracia, tales como la representación política, el sistema político y las relaciones entre los actores en diversas etapas del ciclo político y económico
¿Democracia sin mujeres? Discriminando las inequidades de la representación de género en los concejos municipales colombianos
Authors: Rodríguez Pico Clara Rocío , Barrera Escobar Viviana Andrea
Published: October 2024

Después de identificar el bajo nivel de representación subnacional de las mujeres en Colombia comparado con el nivelnacional y con estándares internacionales, el artículo analiza variables ligadas a la competencia y los resultados obtenidospor candidatas postuladas a los concejos municipales en las elecciones de 2015 y 2019, identificando tendenciasderivadas de la existencia de nueve categorías de tamaños de circunscripción electoral. Mediante una metodologíacualitativa que sistematiza información del universo tanto de concejos municipales como de los competidores participantesen las elecciones estudiadas, se examinan los efectos mecánicos del tamaño de los distritos en las posibilidades de lascandidatas y la forma como estos inciden en la aplicación de la cuota de género y en el tipo de lista a través de las cualesinscribieron sus candidaturas.
Inicios similares y caminos divergentes. Los cambios en la política local y la disputa por el Concejo en Medellín y Bogotá (1972-2019)
Authors: Escobar Escobar Juan Carlos
Published: October 2024

El propósito del artículo es analizar los patrones históricos del voto en las ciudades de Medellín y Bogotá, centrando la mirada en los procesos de faccionalismo de largo aliento de las expresiones de los partidos Liberal y Conservador de cada ciudad, así como en la paulatina aparición de fuerzas políticas ajenas al bipartidismo. El diseño investigativoplantea una estrategia mixta, en cuanto combina herramientas cuantitativas (índices electorales) y cualitativas (fuentesdocumentales), que ayudaron a desentrañar los procesos políticos en ambas ciudades. El artículo demuestra que en lasdécadas de los años sesenta y setenta el comportamiento político electoral de las dos ciudades es similar por la existencia de sistemas claramente bipartidistas y escasas opciones alternativas. No obstante, las trayectorias de los partidos ysistemas de partidos fueron distintas en una y otra ciudad por razones que se explican ampliamente en el texto.
Aspectos históricos de la ergonomía en Colombia: 52 años de acción ergonómica
Authors: Estrada-Muñoz Jairo
Published: October 2024

El presente trabajo corresponde a los resultados de una investigación documental que contempla tres etapas. Etapa 1: Revisión inicial de la documentación bastante visible en lugares de fácil acceso, tales como: repositorios de universidades, revistas indexadas bastante conocidas en el medio, bibliotecas de universidades, archivos individuales de varias personas. Una primera aproximación al trabajo realizado en Colombia en el campo de la ergonomía se organizó ante el congreso colombiano de ergonomía en el año de 2021, dentro del evento denominado Semana de la Salud Ocupacional en la ciudad de Medellín, Colombia. Etapa 2: Revisión bibliográfica sistemática con apoyo de las redes universitarias, las revistas especializadas, las memorias de los eventos relacionados con ergonomía, riesgos laborales, seguridad y salud en el trabajo y luego estos documentos fueron clasificados mediante la base de datos Mendeley Reference Manager, que incluye los trabajos presentados hasta diciembre 31 de 2022 en Colombia y por autores colombianos o extranjeros que vivan en Colombia. Etapa 3: Hacer un análisis detallado de las publicaciones que se hayan realizado hasta la fecha, con sus relaciones, sus orientaciones, e incluso sus conclusiones, con el objeto de la elaboración de un documento suficientemente significativo para su publicación. Este documento de análisis aún se encuentra en preparación. De igual manera, el trabajo se ha dividido en forma temporal, para situar los periodos de producción de la siguiente manera: Periodo de iniciación (comprende desde el año 1970 hasta 1990; Periodo de consolidación (comprende desde 1991 hasta 2005); Periodo de expansión (comprende desde el año 2006 hasta 2022).