bluuebunny/crossref_metadata_2025_split huggingface dataset:
Пневматичні регулятори в установках одержання інертних газів
Authors: Симоненко Ю.М. , Медушевський Є.В. , Костенко Є.В. 
Published: November 2023

У статті відображено сфери використання пневматичних захисних та регулюючих пристроїв при збагаченні газових концентратів. Розглянуто основні типи редукторів. Наведено приклади технологічних схем, заснованих на застосуванні пневматичних регуляторів. Редуктори типу «після себе» слугують для зниження тиску газу, що подається з ресиверів високого тиску, групи балонів і реципієнтів. Включення таких регуляторів дозволяє знижувати вхідний тиск до рівня, відповідного характеристикам компресорів чи технологічним режимам установок. Редуктори «до себе» слугують для стабілізації тиску в апаратах-джерелах газових концентратів. При відборі у фазовий сепаратор (дефлегматор) Ne-He суміші з ряду різнотипних повітророздільних установок такі регулятори здатні забезпечити узгоджену роботу кількох блоків та виключити перетікання суміші та порушення повітророзділення. Редуктори «до себе» можуть виконувати функції превентивної захисної арматури поряд з типовими запобіжними клапанами. На відміну від останніх, регулятори «до себе» мають більшу чутливість і здатні знижувати тиск в установці плавно, не порушуючи технологічний процес. У цьому випадку регулятори налаштовують на 0,2...0,3 МПа нижче тиску спрацьовування основного запобіжного клапана. Наведено приклади контурів, заснованих на використанні пневморегуляторів у системах збагачення інертних газів. Розглянуто випадок відбору суміші безпосередньо з джерела і подавання рівномірно в колону з підвищеним (щодо джерела) тиском. Такий варіант передбачає узгодження витрати компресора з продуктивністю колони за рахунок використання періодичного компримування та ресиверів. Розрахункові моделі дозволяють прогнозувати зміну тиску протягом циклу. Залежно від продуктивності установки обчислюється мінімальний обсяг ресивера, що забезпечує безперервність подачі суміші у колону. Запропоновані схемні рішення дозволяють забезпечити стабільну роботу установок для збагачення концентратів інертних газів
Factors determining the prognosis after elective myocardial revascularization in patients with coronary artery disease with multifocal atherosclerosis
Authors: Khakimova M. B. , Komarov A. L. , Krivosheeva E. N. , Mironov V. M. , Kurbanov S. K. , Kuzyakina S. O. , Yarovaya E. B. , Panchenko E. P. 
Published: November 2023

Aim. To identify factors determining the prognosis after elective myocardial revascularization in patients with coronary artery disease (CAD) with multifocal atherosclerosis (MFA).Material and methods. The study is based on the prospective registry REGATA-1, ClinicalTrials NCT04347200 (1500 patients with stable coronary artery disease; men, 78,6%, age, 65±8,7 years). We selected 238 patients with MFA, the criteria of which were multivessel CAD (at least 2 arteries) in combination with stenosis ≥50% of at least one of the peripheral vascular system. The selection criteria was elective myocardial revascularization followed by dual antiplatelet therapy for at least 6-12 months. Unfavorable outcomes were analyzed, namely thrombotic events (TEs) in any vascular system and bleeding (BARC type 2-5).Results. The median follow-up was 859 days (interquartile range [523;1665]). Thrombosis dominated in the structure of events: the total incidence of TEs was 18,5% (including fatal — 4,2%), and the total incidence of bleeding was 7,5% (including BARC type 3 — 1,7%). Predictors of TE were smoking (hazard ratio (HR)=2,18), myocardial infarction (HR=2,6) and ischemic stroke/transient ischemic attack (HR=2,81) more than a year ago, as well as revascularization with percutaneous coronary intervention (PCI) versus coronary artery bypass grafting. For PCI, the prognosis was worse in case of incomplete revascularization, as well as when the intervention was limited to ≤2 arterial segments and the total length of stents <26 mm. Among all predictors of poor prognosis, the most significant was high-risk PCI in combination with dual antiplatelet therapy for <12 months (HR=6,7).Conclusion. For the first time, TE predictors in patients with CAD and MFA have been identified, which will improve secondary prevention in a category of patients with an extremely high risk of TEs.
Influencia de la satisfacción laboral en el desempeño del personal del Ministerio de Trabajo y Promoción del Empleo, 2023
Authors: Santiago Blanca D. 
Published: November 2023

La investigación tiene como principal objetivo determinar la influencia de la satisfacción laboral en el desempeño del personal del Ministerio de Trabajo y Promoción del Empleo, usando datos de corte transversal en 2023, empleando una encuesta de confiabilidad validada. La información recogida arroja que el 58% del personal expresa tener sólo un nivel regular de satisfacción personal, indicando como elemento más positivo el reto que le demanda el trabajo de su puesto y la retribución al esfuerzo uno en el que la entidad debería mejorar. El 81.3% manifiesta llevar a cabo un adecuado desempeño laboral, destacando sus relaciones laborales y señalando al trabajo en equipo como una dimensión en la que debe mejorarse.
Se concluye que la satisfacción laboral influye significativamente en el desempeño del personal obteniendo un estadístico chi-cuadrado = 118,477 (p = 0,000) y el R2 de Nagelkerke = 0,490. De forma similar, existe influencia de parte de cada una de las dimensiones que componen la variable independiente (Trabajo desafiante, condiciones laborales, apoyo institucional y retribución al esfuerzo).
Clinical and genetic characteristics of type 7 distal arthrogryposis caused by a pathogenic variant in the <i>MYH8</i> gene
Authors: Sharkova I. V. , Nikitin S. S. , Markova T. V. , Voskanyan A. E. , Melnik E. A. , Shchagina O. A. , Dadali E. L. 
Published: November 2023

Distal arthrogryposis is a group of genetically heterogeneous congenital diseases characterized by non-progressive contractures predominantly distal joints of the upper and lower extremities. 11 genes have been identified as pathogenic variants causing the occurrence of autosomal dominant and autosomal recessive types of distal arthrogryposis. Almost all products of these genes are expressed in the structures of the neuromuscular system, which makes it possible to classify distal arthrogryposis as a neuromuscular disease. Type 7 distal arthrogryposis is a rare autosomal dominant disease characterized by two main symptoms: mandibular trismus and pseudocamptodactyly, a specific symptom of limited mobility of the interphalangeal joints during hand dorsiflexion with no restriction during palmar flexion. In all patients described in the literature from different populations with type 7 distal arthrogryposis, the same pathogenic variant c.2021G>A(p.Arg674Gln) was found in the MYH8 gene, the protein product of which is one of the myosin isoforms functioning in the embryonic period and providing the formation of muscle fiber structures.The aim of the work is to describe the clinical and genetic characteristics of the first family case of type 7 distal arthrogryposis in Russian patients. The patients underwent clinical examination and electromyography. Exome sequencing after DNA isolation from the proband’s blood according to the standard method was carried out on the NextSeq 500 platform (Illumina, USA) using the pairedend reading method (2 × 75 bp). Confirmation of the pathogenicity of the identified variants was carried out using automatic Sanger sequencing.As a result of molecular genetic analysis in a father and son with clinical manifestations of type 7 distal arthrogryposis, a heterozygous c.2021G>A variant in exon 18 of the MYH8 gene, which was previously described in all patients published in the literature, was detected, leading to the replacement of p.Arg674Gln(NM_002472.2) in a protein molecule. The examined patients did not reveal focal neurological symptoms, as well as minor developmental abnomalities, pathology of internal organs, ulnar deviations, equinovarus feet deformities, vertical orientation of the talus, contractures of the hip joints, which were found with varying frequency in previously described patients with variants in the MYH8 gene. Specific clinical signs of type 7 distal arthrogryposis, combined with the presence of a major nucleotide variant, make it possible to optimize the process of molecular genetic diagnosis of this type of hereditary arthrogryposis.
Дослідження імітації двовимірних вибірок з використанням поліноміальних сплайнів
Authors: Зівакін В.Д. , Приставка П.О. 
Published: November 2023

Моделювання використовується для вирішення різноманітних завдань, через певний набір причин: імітація "критичних" режимів, що в умовах реальної експлуатації може бути небезпечним, економія часових і матеріальних ресурсів, можливість дистанційного тренінгу та ін. Зокрема, у випадку проведення досліджень у багатовимірних просторах, актуальним є не моделювання роботи системи, а саме послідовностей даних деякого визначеного вигляду могло б вирішити проблему нестачі таких даних.
В [1] сказано, що при імітаційному моделюванні вибірок перше, з чого необхідно виходити – це модель розподілу, яку необхідно отримати. Модель може бути визначена деяким аналітичним законом розподілу (нормальний, Вейбула, рівномірний, тощо), і в цьому вона залежать від параметрів (параметрична модель). Зазвичай обирають моделі такі, щоб їхні параметри несли деяку змістовну інтерпретацію ( початок та кінець інтервалу в рівномірному розподілі, інтенсивність в експоненціальному, тощо). Іншим класом моделей, що відтворюють функції розподілу є непараметричні (ядерні методи, гістограмні оцінки емпіричної функції розподілу, сплайн – апроксимація [4]). Основною проблемою методів, що ґрунтуються на параметрах, є обмеженість, особливо в двох випадках:

При моделюванні багатовимірних даних – в цьому випадку робота завжди призводить до переходу до багатовимірного нормального розподілу.
При моделюванні неоднорідних вибірок, які є сумішшю декількох розподілів (не обов’язково з одного класу), усічених або тих, що містять пропуски спостережень.

В цьому контексті використання параметричних моделей об’єктивно є неможливим у чистому вигляді. Отже, наявність інструменту, який добре апроксимує неоднорідні дані є бажаною для вирішення задачі генерації неоднорідних багатовимірних сукупностей.
Valorisation du Capital Immatériel par le Marché Financier : Une Analyse Empirique sur le Marché Financier Régional de l’UEMOA
Authors: Ossonon Ahou Claudine 
Published: November 2023

L’objectif de ce papier est d’analyser la valorisation du capital immatériel par le marché financier. L’analyse de régression sur des données de 20 entreprises cotées sur le Marché Financier Régional prouve que les informations liées au capital structurel publiées dans les rapports annuels sont valorisées positivement par les investisseurs. Toutefois, nonobstant la politique de communication soutenue des entreprises en matière de capital humain, le capital humain est valorisé négativement par le marché financier. Le marché financier ne perçoit pas le capital humain comme étant un facteur clé de création de valeur et de compétitivité. Relativement au capital relationnel, aucune relation n’a été mise en exergue. Eu égard aux conclusions de cette recherche empirique, les dirigeants d’entreprises cotées doivent communiquer davantage des informations pertinentes et suffisantes aux investisseurs sur le marché financier sur les différentes composantes du capital immatériel pour une meilleure valorisation de leurs titres. D’ailleurs, l’originalité de cette étude réside dans le fait qu’elle est la première recherche à fournir une preuve empirique de la valorisation, par les investisseurs sur le marché financier régional, des informations extra financières communiquées sur les composantes du capital immatériel dans les rapports annuels des entreprises cotées.

The objective of this paper is to analyze the valuation of intangible capital by the financial market. Regression analysis on data from 20 companies listed on the Regional Financial Market proves that information related to structural capital published in annual reports is positively valued by investors. However, notwithstanding the sustained communication policy of companies in terms of human capital, human capital is negatively valued by the financial market. The financial market does not perceive human capital as a key factor in creating value and competitiveness. Regarding relational capital, no relationship has been highlighted. Given the conclusions of this empirical research, managers of listed companies must communicate more relevant and sufficient information to investors in the financial market on the different components of intangible capital for a better valuation of their securities. Moreover, the originality of this study lies in the fact that it is the first research to provide empirical proof of the valuation, by investors on the regional financial market, of extra-financial information communicated on the components of intangible capital. in the annual reports of listed companies.
Diversity of bacterial symbionts associated with the tropical plant bug Monalonion velezangeli (Hemiptera: Miridae) revealed by high-throughput 16S-rRNA sequencing.
Authors: Navarro-Escalante Lucio , Benavides Pablo , Acevedo Flor Edith 
Published: November 2023

Abstract
Insects and microbes have developed complex symbiotic relationships that evolutively and ecologically play beneficial roles for both, the symbiont and the host. In most Hemiptera insects, bacterial symbionts offer mainly nutritional, defense and reproductive roles and have promoted the adaptive radiation of several hemipteran phytophagous lineages. The tropical plant bug Monalonion velezangeli (Hemiptera: Miridae) is a polyphagous herbivore considered an important insect pest for several economically-relevant tropical crops; however, information about the composition of its bacterial microbiota was missing. In this study, we describe the diversity and structure of the bacterial microbiota in the nymph and adult life stages of M. velezangeli using Illumina high-throughput sequencing of 16S ribosomal RNA gene amplicons (meta-barcoding). We found that both insect life stages share a similar microbiota in terms of bacterial diversity and community structure. The intracellular symbiont Wolbachia (~92%) dominated the overall microbiome composition in these life stages, and along with bacteria genera Romboutsia, Ignavibacterium, Clostridium, Allobaculum, Paracoccus, Methylobacterium, Faecalibacterium, Collinsella, Rothia, Sphingomonas and other 4 undetermined genera, were found as members of the core microbiota. Based on PCR screening and DNA sequencing of wsp gene, Wolbachia infection was confirmed in almost 80% of samples, represented by two different isolates or strains within the supergroup B. This data opens new questions and avenues to better understand the contribution of symbiotic bacteria in the biological performance of this insect pest and provide bases to explore other insect control methods.
Accepting the Process, Rejecting the Outcome – A Fairness Paradox in Judging Wealth Distributions
Authors: Sikström Sverker , Roine Jesper 
Published: November 2023

Abstract
How wealth accumulates following investments is a fundamental process in our society, as is people’s understanding and acceptance of such processes. We show a fairness paradox, where people view an underlying wealth accumulation process as fair, but the outcome from it as completely unfair. This suggests that people misjudge how wealth accumulation works, and that they may be lured into accepting unfair outcomes based on premises they view as fair, but do not understand the consequences of.
Water can trigger nuclear reaction to produce energy and isotope gases
Authors: Huang Bin-Juine , Pan Yu-Hsiang , Wu Po-Hsien , Yeh Jong-Fu , Tso Ming-Li , Liu Ying-Hung , Wu Litu , Huang Ching-Kang , Chen I-Fee , Lin Che-Hao , Tseng T.R. , Kang Fang-Wei , Tsai Tan-Feng , Lan Kuan-Che , Chen Yi-Tung , Liao Mou-Yung , Xu Li , Chen Sih-Li , Greenyer Robert William 
Published: November 2023

Abstract
This paper reports the discovery that water can trigger a peculiar nuclear-like reaction and produce energy. Cavitation may induce unusual reactions through implosion of water vapor bubbles. Many of this research has been published formally or informally1-10. We have conducted experiments using two reactor types made from multiple-pipe heat exchanger and found that the heat exchange process of water produces peculiar excess heat and abnormally high pressure leading to rupture of the reactor11. Recently, we have tested another eight reactors. Interestingly, these reactors produce non-condensable gas. We suspected that they include Ne22 and CO2 .
We used a mass spectrometer (MS) to analyze 14 gas samples collected from 8 reactors, including ten reactors showing a coefficient of performance COPx >1.05 (with excess heat) and four having COPx < 1.05 (without excess heat). Several methods were adopted to identify the gas content. For CO2 identification, two methods are employed. For Ne22 identification, three methods are employed. All the results confirm that isotope Ne22 and regular CO2 really exist in the output gas from reactors determined to have excess heat.
We conjecture a possible mechanism to produce Ne22 and CO2 and find out that C12 and isotope O17 are the intermediate. They finally form isotope gases containing O17, including H2O-17 (heavy-oxygen water), isotope O2 (O16-O17), and isotope CO2 (C12-O16-O17). In the excess heat producing reactors, all these gasses were detected by MS in the absence of Ne20 and Ne21. The observed isotope gases produced from reactors having excess heat verifies that water can trigger a peculiar nuclear-like reaction and produce energy.
Hydroxyethyl starch and Ringer’s lactate for volume resuscitation in sepsis and septic shock – The BaSES Trial
Authors: Hollinger Alexa , von Felten Stefanie , Balestra Gianmarco M. , Dickenmann Michael , Steiner Luzius , Marsch Stephan , Pargger Hans , Siegemund Martin 
Published: November 2023

Abstract
Study objective: Shock develops in one third of ICU patients. Uncertainty remains about the ideal amount and choice of resuscitation fluid to avoid consequences of fluid overload.
Design: The BaSES (Basel Starch Evaluation in Sepsis) Trial is an investigator-initiated, single-centre, randomised controlled clinical trial on volume resuscitation.
Setting: We investigated whether volume resuscitation with Hydroxyethyl starch (HES 130/0.4) compared to normal saline (NaCl 0.9%) reduces ICU length of stay.
Patients: A total of 244 septic shock patients were randomized (119 to HES, 125 to NaCl).
Interventions: Randomization to HES or NaCl for volume resuscitation.
Measurements: ICU length of stay (LOS), hospital LOS, ICU mortality, in-hospital mortality, and 1-year mortality, incidence of acute kidney injury (AKI), fluid balance, trajectory of inflammatory parameters, lactate, and SOFA (sequential organ failure assessment) score.
Main results: Baseline characteristics and ICU management were comparable among groups. ICU LOS was not significantly shorter with HES (hazard ratio, HR, for ICU discharge alive HES vs. NaCl, 1.11,95% CI 0.83 to 1.49). However, the HES group showed a significantly reduced hospital LOS (HR HES vs. NaCl: 1.48, 95 % CI 1.09 to 2.01, p=0.011). HES did not significantly affect other laboratory values, mortality or renal function.
Conclusions: The results of the BaSES trial neither do call for complete suspension of HES from the market, nor do they support a role of HES in volume resuscitation in septic shock.
Trial registration: ClinicalTrials.gov Identifier: NCT00273728
Application of the IGWO Algorithm for Flood Control in Reservoir Groups in Optimal Operation
Authors: Chen Hai-tao , Li Shu-min , Guo Xiao-qi , Liu Yuan-yuan , Guo Wen 
Published: November 2023

Abstract
The operation of reservoir flood control operation is a multifaceted engineering issue characterized by complexity, several stages, nonlinearity, and many dimensions. It involves various intricate constraints and interrelated decision variables. Traditional algorithms tend to be slow and prone to local optima when solving optimization problems for flood control in reservoir groups. In recent years, with the introduction of various optimization technologies, more intelligent algorithms have been applied to optimize reservoir flood control scheduling problems in recent years. However, this remains a challenging task for large-scale reservoir group optimization scheduling problems. This work utilizes an Improved Grey Wolf Optimisation algorithm (IGWO) that incorporates Levy fly and random walk techniques for more effective optimization and scheduling of reservoir groups. Taking the Xiaolangdi Reservoir, Sanmenxia Reservoir, Luhun Reservoir, and Guxian Reservoir in Yellow River's middle and lower reaches as examples, a flood control dispatch system composed of four series and parallel reservoirs and a downstream control point at Huayuankou is studied as an example. We have established a flood control optimization scheduling model based on the Huayuankou control object, which maximizes the reduction of peak flow, and compared and analyzed the optimization results of the Improved Grey Wolf Algorithm (IGWO), Grey Wolf Algorithm (GWO), and Particle Swarm Optimization Algorithm (PSO). The results show that the Improved Grey Wolf Optimization algorithm achieves the best performance in calculating the maximum peak flow rate at Huayukou, with a peak flow rate of 18,681.1 m3/s and a peak reduction rate of 50.68%. This research offers novel perspectives and methodologies for addressing the optimization scheduling of reservoir clusters in flood control operations.
Multi-field coupling multiple nonlinear vibration model and fatigue crack propagation failure mechanism of tubing string in ultra-HPHT gas wells
Authors: Guo Xiaoqiang , Lv Junlin , Hu Ning , Zhao Libin , Li Xinye 
Published: November 2023

Abstract
In this work, a multiple nonlinear vibration model of drilling string system in ultra-HPHT oil & gas wells was established using finite element method, energy method and Lagrange equation, which considers multiple nonlinear factors such as the nonlinear effect of ultra-HPHT on the elastic modulus of the drill string, the nonlinear contact between the drill string and the borehole wall, and the longitudinal transverse torsional coupling vibration of the drill string structure. The incremental form Newmark and Newton Raphson joint iteration methods is proposed and the correctness of the model is verified by the field test data. Based on the mechanism of the torsion impact acceleration tool, corresponding motion equations are established and the main ways of acceleration were determined. Based on this, according to the parameters of YC ultra-HPHT well in South China Sea, the influence of the impact tool on the vibration characteristics and stick slip characteristics of the drill string were explored. It is found that, firstly, applying constant torque can effectively reduce the time for the drill string to stall and improve the mechanical drilling speed of the drill bit. The sine wave torque excitation has the best effect and can effectively improve the mechanical drilling speed. Secondly, with the increase of torque amplitude, the peak speed decreases significantly, the torsional vibration of the drill string becomes more stable, and the viscosity time of stick slip vibration also decreases significantly. Under the premise of meeting the safety of the acceleration tool, a torque amplitude of 4000 N·m can be used for acceleration, which has a better acceleration effect. Thirdly, the torque frequency increases, the peak speed shows a trend of first decreasing and then increasing, while the viscosity time also shows a trend of first decreasing and then increasing. This indicates that the optimal acceleration effect is achieved when the frequency of acceleration tool is selected to be around 20 Hz. The research results provide a theoretically guidance for designing and practically sound approach for effectively improving the mechanical speed in ultra-HPHT oil & gas wells.