bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estado del conocimiento de las investigaciones sobre la enseñanza y el aprendizaje de lenguas extranjeras en Ecuador (2011-2021)
Authors: Calle-Calle Ana María , Hidalgo-Camacho Cynthia Soledad , Cabrera-Moreno Sandra Leonor 
Published: February 2024

El presente trabajo exploratorio descriptivo pretende contribuir al vacío de conocimiento existente sobre las investigaciones en el área de la enseñanza de lenguas extranjeras, durante los años 2011-2021. La información fue recogida a través del buscador especializado de literatura académica Google Scholar, que, por defecto, muestra en las primeras páginas los resultados de mayor relevancia. Los estudios fueron agrupados en seis categorías: 1. Métodos, enfoques, modelos y estrategias, usados para la enseñanza de lenguas extranjeras; 2. la educación en línea y el uso de las tecnologías en la enseñanza de las lenguas; 3. Análisis curricular y evaluación; 4. factores que influyen en el aprendizaje de una lengua extranjera; 5. Percepciones de estudiantes y docentes acerca del proceso; y 6. Perfeccionamiento docente. Principalmente, pudo evidenciarse que la investigación se centra en la búsqueda de mejores métodos y enfoques para la enseñanza, mientras que, otros temas como el análisis curricular y evaluación de procesos han sido investigados con menos frecuencia. Se concluye que el nivel de suficiencia en el lenguaje extranjero de los estudiantes no se corresponde con los resultados de intervenciones específicas, que han reportado casi siempre resultados positivos para mejorar los procesos de enseñanza-aprendizaje. Finalmente, se recomienda una investigación que ahonde en el análisis de todos los aspectos que influyen en el aprendizaje de lenguas.
Ways to solve the problem of training highly qualified internists
Authors: Kanorsky S. G. , Petrik G. G. , Kosmacheva E. D. , Skibitsky V. V. , Kovalenko F. A. , Gorban V. V. , Porodenko N. V. 
Published: February 2024

Training a highly qualified internist in residency is a multifaceted task facing the teaching staff of the Kuban State Medical University.The aim of the study was to analyze the long-term experience of training internal medicine physicians (from 2019 to 2022) at the Kuban State Medical University.Conclusion. A developed methodological system for personalized preparation of internists, the integration of theoretical and practical training, the individual work of students with ongoing progress monitoring of each resident, the mentor system, as well as the active use of modern technical equipment, novel methodological techniques, digital and simulation technologies, introduced organizational measures and material incentives for students have made it possible to achieve 100% employment of General Medicine residency graduates of the Kuban State Medical University in recent years.
Therapeutic effects of probiotics and herbal medications on oxalate nephrolithiasis: a mini systematic review
Authors: Taheri Hamed , Feizabadi Mohammad Mehdi , Keikha Reza , Afkari Rouhi 
Published: February 2024

Background and Objectives: The majority of all kidney stone cases are oxalate urolithiasis with a high risk of recurrence. Beside its widespread occurrence, kidney stones are characterized by severe complications and high treatment costs. Pro- biotics and herbal medications could be forthcoming therapeutic interventions in the management of oxalate kidney stones. Materials and Methods: The PubMed/MEDLINE database was searched for keywords “Oxalobacter formigenes” AND “Oxalate” OR “oxalate degradation” AND “Lactobacillus” OR “Bifidobacterium” OR “recombinant Lactobacillus” OR “Bacillus subtilis”, and “urolithiasis” AND “herbal extract”. The search returned 253 results, 38 of which were included in the review.
Results: Most of the oxalate-degrading probiotics belong to the Oxalobacter formigenes, Lactobacillus, Bifidobacterium, and Bacillus genus with a minimum dosage of 107 CFU in the form of capsules, sachets, and lyophilized powder. Oxalate concentration in media was 5-50mM with an incubation time ranging from 24h to 14 days. The majority of the studies suggested that probiotic supplementation might be useful for reducing urinary excretion of oxalate and urea and alleviation of stone formation. Different herbal extracts were used on murine models of nephrolithiasis (induced by 0.5-3% ethylene glycol) with reduction of renal inflammation and urinary parameters, and calcium oxalate crystals.
Conclusion: Several strains of probiotics and herbal extracts confer protective effects against kidney stone/nephrolithiasis, indicating their promising nature for being considered as elements of preventive / adjuvant therapeutic strategies.
The advantage of composite materials used in downhole cutting tools
Authors:   Azerbaijan State Oil and Industry University, Mustafayev Amir G. , Nasirov Chingiz R. ,   Azerbaijan State Oil and Industry University
Published: February 2024

One of the important reserves for the growth of oil and gas production is the acceleration of emergency recovery work in production and exploration wells at minimal cost. A significant amount of work in downhole conditions is performed using downhole destructive and cutting tools. Each oil and gas producing country annually uses more than 100 standard sizes, thousands of cutting tool sets: downhole, annular, combined, pilot, internal and external pipe cutters, as well as reamers for cutting side “windows” in production strings. Therefore, the need for them is growing significantly every year. The conducted experiments show that during the operation of cutting tools, the working abrasive-cutting part of the tool wears out and collapses, but the body, other elements and the connecting thread remain suitable for further operation. Therefore, the restoration of working bodies, consisting of crushed particles of used borehole cutting tools, is an urgent scientific and technical task for the oil and gas industry. When repairing oil and gas wells, as well as eliminating the most complex accidents, more than a hundred standard sizes of downhole cutting and destructive tools are used. Currently, an acute shortage of this equipment in oilfield facilities makes it necessary to reconsider the technologies for restoring downhole cutting and destructive tools and introduce them into production. The conducted studies show that there is not enough information about the thickness and height of the layers of the material applied to the damaged area of the cutting and destructive tool, as well as the information necessary for the optimal mode of its operation and its effectiveness after restoration. Composite materials are widely used in the preparation of cutting-chopping and destructive elements of oil-field tools and equipment used in the drilling, operation and repair of wells. In order to increase the cutting capacity of the cutting part of the tool, it is necessary to investigate the advantages of tungsten-carbide (TC) type composite materials compared to other materials and ensure their resistance to high temperatures. As a result of theoretical studies, the stress-deformation state of the contact areas of the composite elements, where the working areas of the cutting and destructive tools are reinforced, and the dependence of the productivity of the composite materials on the speed of transition to metal and the sizes of the composite grains were determined by using the finite element method (two-dimensional simplex elements).
Method for assessing the hydrate formation from a mixture of natural gas flows of varying degrees of moisture content
Authors:   Azerbaijan State Oil and Industry University, Iskenderov Elman Kh. , Baghirov Alovsat N. ,   Azerbaijan State Oil and Industry University, Shikhiyeva Lala M. ,   Azerbaijan State Oil and Industry University
Published: February 2024

The article deals with the issues of assessing the conditions of hydrate formation when mixing natural gas flows of various standards. An urgent problem of operation, especially of offshore subsea gas pipelines, is the prediction of the time, place and expected intensity of hydrate formation. Depending on the changing operating mode of the gas pipeline, dispatch service specialists must be able to adjust the process control tactics on their own, as quickly as possible. The predisposition of a particular gas pipeline to hydrate is also important for the dispatching service. Changes in the volumes of gas entering the region under consideration from different sources, due to the constant change in gas production, create the need to mix gases of different standards and pump them into subsea gas pipeline. To avoid hydrate formation, it is important to predict the thermobaric conditions that will be formed in the gas pipeline by considering the characteristics such as a volume in the mixture and the moisture content of the gas. The processes of hydrate formation proceed quickly and if the beginning of the process is overlooked, the problem of significant or complete blockage of the gas pipeline might appear. The paper gives a systematization of the risk of hydrate formation depending on several infrastructural factors – the presence of a preliminary gas drying system and a system for starting and receiving cleaning pistons. A method is proposed for estimating the moisture content and dew point temperature of a natural gas mixture by the condition and the proportion of primary flows. It has been shown that the addition of a small volume of undried gas to the main dried gas significantly increases the risk of hydrate formation. A formula is given for calculations for a mixture of multiple natural gas flows. The advantage of this method is the quick calculations, and the absence of the need for huge mathematical calculations and laboratory studies. This is an important element in the activities of the dispatch service, limited by a lack of time in the process of preventing hydrate formation.
The inhibitory effect of selected reagents on carbon steel corrosion in formation water containing hydrogen sulfid
Authors:   Azerbaijan State Oil and Industry University, Gurbanov Guseyn R. , Pashayeva Saida ,   Azerbaijan State Oil and Industry University
Published: February 2024

For the first time, the impact of the composition of gossypol resin and IB-1 reagent, prepared in a 3:1 ratio and conventionally named HS-1, on the corrosion rate in hydrogen sulfide formation water has been investigated under laboratory conditions. Concentrations of 20, 40, 60, 80 mg/l of the new composition were used. During the experiments, a formation water sample taken from well No. 1082 of “Bibiheybatneft” OGPD, SOCAR, served as the electrochemical corrosion medium for the study. To conduct a comparative analysis, gossypol resin, IB-1 inhibitor, and HS-1 composition were used. Concentrations of 50, 100, 150, 200 mg/l of gossypol resin and 10, 15, 20, and 25 mg/l of IB-1 inhibitor were employed in the experiments. Numerous laboratory experiments revealed that the optimal consumption rate for the HS-1 inhibitor is 100 mg/l, for gossypol resin it is 200 mg/l, and for the IB-1 inhibitor it is 25 mg/l. These experiments were conducted under dynamic conditions over six hours. It was determined that the newly developed HS-1 composition offers superior protection in an aggressive medium containing hydrogen sulfide compared to its constituent components, gossypol resin, and IB-1 inhibitor. Specifically, as the concentration of gossypol resin in formation water increases from 50 to 200 mg/l, the corrosion protection effect ranges from 60–82%. When the concentration of IB-1 inhibitor varies between 10–25 mg/l in a hydrogen sulfide medium, the protection effect lies between 65-90%. In the aggressive medium of hydrogen sulfide formation water, increasing the concentration of the new HS-1 composition from 30–80 mg/l results in an enhancement of its electrochemical corrosion protection effect, ranging from 74–98%. Upon analyzing the results of numerous laboratory experiments, it was found that the optimal consumption rate of gossypol resin for corrosion protection in an aggressive medium with hydrogen sulfide is 200 mg/l, the consumption rate of IB-1 inhibitor is 25 mg/l, and for the HS-1 composition is 80 mg/l. The corrosion rates for gossypol resin in the concentrations of 50, 100, 150, 200 mg/l is 1.72, 1.38, 1.12, 0.78 g/m2 · h and retardation coefficient is 2.50, 3.10, 3.84, 5.51, respectively. Corrosion rate of IB-1 inhibitor concentration in the amount of 10, 15, 20, and 25 mg/l is 1.5, 1.12, 0.78, 0.43, and retardation coefficient is 2.86, 3.84, 5.51, 10.0, respectively. The corrosion rates for the new HS-1 composition at concentrations of 20, 40, 60, 80 mg/l is 1.12, 0.73, 0.34, 0.08, and the retardation coefficient is 3.84, 5.89, 12.64, 53.75, respectively. Comparing the corrosion rate values obtained for all three reagents with the corrosion rate for hydrogen sulphide formation water shows that new HS-1 composition has a higher effectiveness compared to its constituent components.
The influence of recycled aggregate on the properties of geopolymeric recycled concrete: A comprehensive review
Authors: Lyu Shaoxiong , Xiao Jianzhuang , Singh Amardeep , Ye Taohua 
Published: February 2024

This paper offers a comprehensive review of geopolymeric recycled concrete (GRC) research, particularly focusing on mechanical properties, durability, microstructure, and the interfacial transition zone (ITZ). The study emphasizes the influence of recycled aggregate (RA) content on GRC performance. Findings indicate that higher RA content leads to a gradual reduction in GRC’s compressive, tensile, and flexural strengths, elastic modulus, and toughness. The elastic modulus is most affected, followed by compressive strength, while tensile strength experiences the least decline. Moreover, increased RA content is associated with elevated water absorption, decreased resistance to chloride ion permeability, sulfate corrosion, acid, frost, and carbonization in geopolymer concrete. The integration of RA creates more intricate ITZs in geopolymer concrete, resulting in reduced bonding strength and a looser, more porous microstructure. However, the use of geopolymers can mitigate these effects by enhancing bonding in ITZs. The paper also presents a statistical analysis of compressive strength test results from various studies and proposes a preliminary method for estimating the compressive strength of geopolymer concrete with different RA replacement rates.
Deep-Learning-Based Simulation and Inversion of Transient Electromagnetic Sounding Signals in Permafrost Monitoring Problem
Authors: Nechaev O.V. , Danilovskiy K.N. , Mikhaylov I.V. 
Published: February 2024

Abstract
—This article presents a novel approach to addressing the challenges in permafrost monitoring through the integration of deep-learning techniques with conventional electromagnetic sounding methods. Our methodology comprises a forward finite element method (FEM) solver, augmented with the Sumudu transform, and an artificial neural network (ANN) solver trained on FEM-generated data. Remarkably, the ANN solver demonstrates similar accuracy to the FEM solver but operates at a superior speed that is nearly 10,000 times faster. Furthermore, we introduce an inverse problem solution drawing on the PARS algorithm. In addition, we present an ANN-based inverse solver, where the input and output roles are inverted. The ANN inverse solver is trained on the same data, thereby offering an alternative approach to solving the inverse problem. In a computational experiment, we compare the numerical inversion results using the PARS algorithm with those obtained from the ANN forward solver, ANN inversion, and a linear combination of these solutions. This comprehensive analysis sheds light on the effectiveness of our deep-learning-based approach in permafrost monitoring, providing insights for future applications in geophysics and environmental science.
A retrospective and prospective observational study of MRI changes in bone in patients with type 1 Gaucher disease treated with velaglucerase alfa: the EIROS study.
Authors: Bengherbia Monia , Berger Marc , Hivert Benedicte , Rigaudier Florian , Bracoud Luc , Vaeterlein Ole , Yousfi Karima , Maric Michele , Malcles Marie , Belmatoug Nadia 
Published: February 2024

Abstract
Background
Gaucher disease type 1 (GD1) is a rare autosomal recessive disorder characterized by hepatosplenomegaly, thrombocytopenia, and disabling bone manifestations that require regular MRI monitoring to assess disease progression and treatment responses. Velaglucerase alfa therapy results in long-term improvements in hematologic and visceral manifestations, but more real-world data on its impact on bone manifestations are needed. The EIROS study aimed to address this knowledge gap by using MRI data collected in daily practice in France to assess the impact of velaglucerase alfa on GD1 bone disease.
Methods
Patients with GD1 and bone MRI data from around the time of velaglucerase alfa initiation were eligible for inclusion. All MRIs collected retrospectively from treatment initiation and prospectively to the end of follow-up (12 months) were analyzed centrally by a blinded expert radiologist to evaluate bone infiltration using the Bone Marrow Burden (BMB) score and a qualitative method (scored for the spine and femur: stable, improved or worsened). Abdominal MRIs were also centrally analyzed to assess hepatosplenomegaly. Reports from bone MRIs, X-rays, and abdominal ultrasounds made by local radiologists were also collected. Clinical (acute and chronic bone pain) and biological parameters were analyzed from medical records.
Results
MRI data were available for 20 patients from 9 hospital centers: 6 treatment-naive patients and 14 patients who switched to velaglucerase alfa from another GD treatment. Readable MRIs for BMB scoring were only available for 7 patients for the spine and 1 patient for the femur. Qualitative assessments, performed for 18 patients, revealed stability in spine and femur infiltration in 100.0% and 84.6% of treatment-switched patients (n = 13), respectively, and improvements in 80.0% and 60.0% of treatment-naive patients, respectively; no worsening of bone infiltration was observed. Liver, spleen and hematologic parameters improved in treatment-naive patients and remained stable in treatment-switched patients.
Conclusions
This study provided real-world evidence suggesting the long-term effectiveness of velaglucerase alfa treatment in GD1, including bone manifestations. The data indicate that if MRI assessment by a radiologist with experience of GD bone manifestations is not possible, a simplified qualitative assessment provides sufficient evidence in clinical practice for monitoring bone disease progression and treatment response.
From Power to Plants: Unveiling the Environmental Footprint of Lithium Batteries
Authors: Gupta Dharmendra K , Iyer Aswetha , Mitra Anindita , Chatterjee Soumya , Murugan Sevanan 
Published: February 2024

Abstract

Widespread adoption of lithium-ion batteries in electronic products, electric cars, and renewable energy systems has raised severe worries about the environmental consequences spent lithium batteries. Because of its mobility and possible toxicity to aquatic and terrestrial ecosystems, lithium, as a vital component of battery technology, has inherent environmental problems. Leaching of lithium from discharged batteries, as well as its subsequent migration through soil and water, represent serious environmental hazards, since it accumulates in the food chain, impacting ecosystems and human health. This comprehensive review delves into ways through which lithium is introduced into the environment, beginning with its release from discarded lithium batteries. This lithium can migrate through soil and water systems, ultimately infiltrating various ecological compartments, including plants, animals, and eventually the human food chain. Of particular concern is the potential toxicity of lithium, and this review closely examines its effects on ecosystems and human health. Aside from examining the environmental impacts, in this paper also emphasizes the significance of proper disposal and recycling measures in order to offset the negative effects of used lithium batteries. Furthermore, this article also emphasizes the importance of continued research to create creative and sustainable methods for lithium recovery and remediation.
Acoustic-based Multitask Construction Equipment and Activity Recognition Using Customized ResNet-18
Authors: Ahammed Istiak , Kim Bubryur , Song Sujeen , An Jinwoo , Chen Zengshun 
Published: February 2024

Abstract
This study presents an acoustic-based multitask technique for distinguishing construction equipment types and their associated activities using a customized ResNet-18 deep learning (DL) model. Construction equipment activities on sites require efficient recognition during real-time operations to ensure maximum productivity and safety. While other studies examine typical recognition, particularly visual or sensor-based methods, this study investigates the potential of equipment-generated audio signals as a feasible option for activity classification. Leveraging the acoustic signal and advanced DL techniques, we collected and preprocessed the audio signals from construction equipment and trained them on the customized pretrained ResNet-18 model to accurately recognize equipment and its corresponding activities. The proposed method shows superior accuracy and good performance in equipment and activity identification. Our findings demonstrate the capability and efficiency of the developed approach in accurately classifying equipment and activity types, achieving classification accuracies of up to 97%. Compared to other models, our method is more computationally efficient. The results suggest that the proposed method holds promise for real-time recognition of heavy equipment and associated activities. Its capability can reduce construction risks, enhance productivity, and improve decision-making at construction sites.