bluuebunny/crossref_metadata_2025_split huggingface dataset:
Challenges of distance English teaching: Narrative analysis of Iranian mainstream EFL teachers’ lived experiences
Authors: Fakharzadeh Mehrnoosh , Naderi Mohammad Hassan 
Published: May 2023

Abstract
This study aimed to examine what challenges Iranian EFL teachers in the mainstream educational system experienced in distance classes during the COVID-19 pandemic. Telephone unstructured narrative interview was employed to collect data from 20 teacher participants, and two theoretical frameworks, CoI and TPACK, were used to interpret the results. The thematic narrative analysis yielded ten themes: non-customized platforms, material-related issues, connection/internet issues, pedagogical problems, evaluation problems, insufficiency of teachers’ knowledge of technology, unmet expectations, physical absence of teacher/student, student-related issues, and dealing with negative emotions. The authors discuss that while some challenges are the antecedent contextual challenges that existed and will probably continue to exist in the context of distance classes, some other challenges can be avoided if teachers are equipped with TPACK to fulfill their new roles in the community of distance classes.
Exclamatives as means of exhibiting emotions in Henry James’s Washington Square: Pragmatic aspect
Authors: Lapka Olha 
Published: May 2023

Abstract
The article aims to analyse exclamatives as means of expressing emotions in dialogical discourse through the Speech Acts Theory. In particular, it dwells upon the representation of the Universal Emotion by the sub-classes of speech acts on the material of Henry James’s Washington Square. For this purpose, a structural-semantic analysis, a speech acts analysis, an intentional analysis, and a statistical analysis were used in the research. The results established pragmatic regularities of using the exclamatives in the course of communication in the novel. Thus, emotions play an essential role in constructing the character’s individual features, each of them having his/her predominant emotion. In addition, the statistical analysis showed that the majority of the analysed exclamatives are used to express the emotions of anger, joy, and sadness, which are construed predominantly by expressive and representative speech acts.
Simulation of Pipe Networks Using EPANET to Optimize Water Supply: A Case Study for Arjawinangun Area, Indonesia
Authors: Safitri Adam , Wahyudi Slamet Imam , Soedarsono  
Published: May 2023

Abstract
In providing clean water services to a community, a clean water supply distribution network system is very important. This study is aimed at the determination of the distribution pipe network by simulating and optimizing the water supply system in the Arjawinangun area, Cirebon, West Java, Indonesia. The data collected was analyzed by using EPANET 2.0 software for modelling water distribution systems. The results show that the total domestic and non-domestic water demand is 391.41 l/s, with a leakage rate of 20%. The pipeline installation plan for the Arjawinangun area is planned to be installed for a length of 23,045 m, with pipe diameters ranging from 400 to 90 mm. The Arjawinangun Area O take Reservoir drainage system, which is at an elevation of +25 m above sea level, requires a distribution pump with a head (H) of 6.0 bar. Also, using the gravity distribution technique, a water tower can be built (~ 55 m) as a water supply booster pump.
Seismic analysis of Fractured Koyna Concrete Gravity Dam
Authors: Ouzandja Djamel , Messaad Mokhtar , Berrabah Amina T. , Belharizi Mohamed 
Published: May 2023

Abstract
Seismic analysis of a fractured dam is a generally complex problem. This paper presents an earthquake behavior investigation of a fractured concrete gravity dam considering dam-reservoir--foundation rock interaction. The Koyna dam profile, located in India, is adopted in this study. The nonlinear finite element analyses are conducted taking into account empty and full reservoir cases, to exhibit the hydrodynamic e ect of reservoir water on the dam earthquake response. The hydrodynamic pressure is modeled by fluid finite elements based on a Lagrangian approach. Transient analyses take into account material and connection nonlinearity. Drucker-Prager model is employed in nonlinear analyses for the dam concrete and foundation rock. The structural crack between the top and bottom blocks of the dam is presented by surface-to-surface contact elements based on Coulomb’s friction law in order to simulate the behavior of contact joints and deformation of blocks. The distribution of horizontal displacements and principal stresses along the dam height is investigated for empty and full reservoir cases.The failure processes of two potential failure modes of cracked dam, i.e, the separation and sliding of top block during an earthquake, are examined.
The Work of Reproduction in the Age of Digital Art: The Role of ‘Aura’ in the Revitalisation of Vinyl Records and Cassettes
Authors: Tsitsos William E. , Saylor Breckenridge R. 
Published: May 2023

Abstract
We explain recent popularity in vinyl records by reframing Walter Benjamin’s notion of ‘aura’ in terms of social forces such as alienation and cultural capital. Where he pays attention to specific artefacts’ mechanical reproducibility as a way of assessing their aura, we consider how mediums themselves broadly possess variable levels of aura inversely related to their ability to be mechanically reproduced by consumers. The more easily consumers can reproduce a medium, the less aura it possesses.
Influence of Fibers on Fresh and Mechanical Properties of (FRC) Fiber Reinforced Concrete, A Step Towards Sustainability
Authors: Ahsan M. , Adil Sultan M. , Ahmad Z. , Cheema S. , Jawad M. , Kanwal Humaira , Asim M. , Mughal Tayyaba Latif , Tahir M. , Mahmood Amna , Mughal Sadia 
Published: May 2023

Abstract
Mostly used material is concrete which has versatile quality for construction works. Fibrous concrete have significant factor that improve the scale and value to concrete for humid environments with significant role. Day by day abundant demand and use of concrete is increasing. It is considered as a 2nd largest building material due to the major productivity. By the use of fibrous concrete, some bonding and environmental issues have been addressed. Keeping in this view, an experimental based study is conducted to evaluate the strength of fiber reinforced concrete at different percentages 0%, 0.5%, 1.0%, 1.5% and 2.0%. All percentages are added by the weight of concrete with all fibers. In this connection, one hundred and fifty-three cylinders of five mixes are prepared. Workability checked of fresh concrete during the pouring of concrete cylinders. Poured cylinders’ samples are left for different curing ages at 7 and 28 days. One hundred and two cylinders for compression at 7 and 28days but fifty-one cylinders for split tensile test at 28days with all fibers i.e. glass fiber, steel fiber, coconut fiber and polypropylene fiber. After curing, compression and split tensile tests are performed to check the strength of hardened concrete. Workability of five mixes lies between 40-90mm.Fibrous concrete is suitable for humid environment where high strength and voids less concrete are required. Addition of fibers in concrete may improves the strength parameters as well as to increase the bonding and tensile properties of concrete. It reduces the quantity of water to be used in concrete. Also the use of different types of fibers has been proved to be economical and is considered as environmental friendly construction material.
The Effect of Brick and Glass Powder on the Mechanical Properties and Porosity of Self-Compacting Mortar
Authors: Bouleghebar Yasmina , Bentchikou M. , Boukendakdji O. , El-Hadj K. , Debieb F. , Maisarah Ali 
Published: May 2023

Abstract
The use of glass and brick powder waste as supplementary cementious material provides an effective approach to produce concrete in order to effectively save resources and solve environmental pollution problems. This study shows the evolution of the preparation of an eco-friendly self-compacting mortar (SCM) with various fineness levels and replacement ratios of crushed glass and crushed calcined brick waste. Cement was replaced by weight, by 8, 12, 16, 20, 24% of glass powder (GP) and 4, 8, 12, 16 and 20% of crushed brick powder (BP), with three specific surface Blaine (SSB) fineness measurements (F1=3300cm2/g,F2=4400 cm2/g and F3=6000 cm2/g) for both wastes. Mini-slump and V-funnel flow time tests of fresh SCM were evaluated. Compressive and flexural strength developments of cured SCMs were determined on 7, 14, 28, 5 6, and 90 days. In addition, porosity of SCM was also evaluated. The results revealed that the (SCM-GP) mix increases workability and reduces superplasticizer dosage, while the (SCMBP) mix reduces workability with a slight increase in superplasticizer. When the GP fineness is higher than the cement fineness, the compression strength with GP contents up to 16% is superior to without the GP, whereas for the BP the strength improvement is up to 8%, while the compression strength decreases when the GP and BP fineness is close or lower than the cement fineness. The porosity diminishes with the increase of the fineness; the 12% of the GPF3 indicated the lowest porousness at 400 days, whereas for SCM-BP the 8BPF3 is the least porous mixture.
The different effects of regional and local winds on dew formation in the Negev desert
Authors: Kidron Giora J. , Kronenfeld Rafael , Temina Marina 
Published: May 2023

Abstract
With dew serving as an important water source for various small organisms and plants in deserts, knowledge regarding the spatial distribution of dew (which constitutes an important fraction of the non-rainfall water, NRW) is of prime importance. This is also the case for the Negev dew desert. According to the classical model, local nocturnal katabatic winds that descend down the slopes during the night to the wadi beds are responsible for the accumulation of cold air, subsequently triggering dew formation in the wadis. Nevertheless, NRW measurements that were conducted in a one-order drainage basin in the Negev during the dewy season (late summer and fall) yielded half the amount in the wadi bed in comparison to the hilltop, attributed to the sheltered position of the wadi from the cooling effect of the regional (sea-breeze) winds, which are not considered by the classical model. Hypothesizing that the classical model may however take place at wide wadi where the sea breeze winds are not sheltered, measurements of dew and temperatures were periodically carried out at the beds of a 5 m-wide narrow (NW) and a 200 m-wide (WW) wadi beds and at the hilltop (HT). The findings did not fully support our hypothesis. In comparison to the hilltop, and despite the mutual effect of the katabatic and the sea breeze winds on the wide wadi bed, also the wide wadi exhibited lower amounts of dew than that of the hilltop, with NRW following the pattern HT > WW > NW. The overwhelming effect of the sea-breeze winds was also supported indirectly by periodic NRW and temperature measurements during the winter during which the sea breeze does not commonly take place. Evidence suggests that whereas the classical model takes place during the winter during which the katabatic winds may play a central role in dew formation, the occurrence of the sea breeze (regional wind) during the late summer and fall overshadows the effect of the local katabatic winds. Our findings point to the possibility that the classical model may not adequately predict dew formation in regions subjected to sea-breeze winds.
Sustainable Consumer Activities of Varna Households
Authors: Kehayova-Stoycheva Maria , Ivanov Svilen , Vasilev Julian 
Published: May 2023

Abstract
The purpose of this article is to present the process for developing individual indexes of sustainable household actions in several thematic areas of sustainable consumption. These areas are energy efficiency, electricity and water consumption, food consumption, transport use and product disposal. Based on these individual indexes, a proposal for the creation of an aggregated individual household index for sustainable consumption is discussed. Based on the developed indexes, a segmentation of households into three basic segments is proposed. The proposed indexes are designed based on the results of a survey conducted among 342 households from the city of Varna, Bulgaria in the months of January - April 2022. The proposed indexes, after adaptation, can be used as a tool for self-assessment of sustainable household consumption in different cities and countries. In this sense, as a result of their implementation, it is expected that the motivation of households towards inclusion in sustainable consumption will be increased.
The Potential of Work From Home for Determining Job Quality
Authors: Porancea-Răulea Andreea Simina 
Published: May 2023

Abstract
Job quality is carefully studied in the research literature and there are multiple models for analyzing relevant indicators. The COVID-19 pandemic has impacted employees’ work and lives, leading to changes in work patterns. Much of the discussions fell under the label of the possibility of working from different places and the implications of information technology on the perceived quality of a workplace. The present study examines the relationship between the perceived quality in the context of distance working. To address the current situation the study emphasizes how the theory, research, and practice have evolved in regard to perceived work quality and its implication for employees. The notion of perceived organization quality was broadened, and the implication of working from home was analyzed from the employees’ point of view. How the possibility of working from home affects the perceived quality of an organization and how this will shape the organization’s functions are subjects of this article. The findings contribute to the understanding of employees’ behavior with choosing a workplace and the key factors that shape the image of a quality organization.
The Mediating Effect of Profitability on the Relationship Between Working Capital Management and Sustainable Growth
Authors: Suntraruk Phassawan 
Published: May 2023

Abstract
This study investigates the relationship between working capital management and sustainable growth, taking into account the mediating role of profitability. The study uses a sample of non-financial companies that were listed on the Thai Stock Exchange between 2010 and 2020. This study documents the absence of direct relationship between working capital management and sustainable growth using fixed effects regression models. Nonetheless, it is found that profitability appears to be a mediating factor in this relationship. Companies can attempt to minimize their cash conversion cycle to enhance their profitability, which will further help them raise their sustainable growth. Furthermore, companies with higher operating cash flows and those with lower financial debt are able to achieve higher profitability and sustainable growth. Remarkably, this study shows that large companies are more profitable and have higher sustainable growth than smaller ones.
<sup>18</sup>FDG PET-CT significance for post-treatment monitoring in cervical and uterine cancer patients with suspected recurrence in previously irradiated zones
Authors: Solodkiy V. A. , Nudnov N. V. , Kreynina Yu. M. , Shevchenko L. N. , Kaskulova M. Kh. , Titova V. A. , Pronkina E. V. , Vorobjeva V. O. 
Published: May 2023

Early detection of cervical (CC) and endometrial (EC) cancer recurrence in previously irradiated areas remains a difficult task for clinicians and radiologists. 18F-FDG PET-CT scope and limits in this matter are not clear yet.Purpose. To determine 18F-FDG PET-CT significance and diagnostic value in differential diagnosis of locoregional recurrence and post-radiation tissue changes in CC and EC patients with suspected relapse in preirradiated zones.Materials and methods. Follow-up data, including multiparametric MRI (T1-WI, T2-WI, DWI, DCE) and 18FFDG PET-CT full descriptions, were studied in 51pts., in 25(49%) CC and 26 (51%) EC Ia–IIIc FIGO, with suspected loco-regional recurrence in pre-irradiated area, 4–96 months after the end of treatment.Adjuvant combined radiotherapy (conformal pelvic EBRT – 3D-CRT, IMRT, VMAT, endovaginal 192Ir HDR brachytherapy) was performed in 33 (64,7%) pts. after radical surgery, adjuvant chemoradiation with Cisplatin 40 mg/m2 or Carboplatin AUC2 weekly – in 8 (24.2%) of them. 18 (35,3%) pts. were treated with definitive chemoradiation, median EQD2 for HR-CTV D90 81.6 ± 4.4 Gy (CI 95% 72.4 Gy – 93.7 Gy) and 54.6 ± 3.3 Gy (CI 95% 48.8–64.2 Gy) for metastatic pelvic and paraaortic lymph nodes.Indications for 18F-FDG PET-CT (Biograph True64, Siemens, 3.8–4.7 MBq/kg, total 169–356 MBq) in all pts. were suspicious clinical, cytological, complex ultrasound, and multiparametric MRI findings in pre-irradiated zones. Any areas of 18F-FDG pathologically increased uptake were considered hypermetabolic lesions, positive for cancer recurrence.Results. No evidence of loco-regional recurrence in pre-irradiated zones was confirmed in 32 (62.7%) pts. Clinical, morphological and radiological signs of progression were obtained in 16 (31.3%) 18F-FDG PET-CTpositive patients, with SUVmax 2.86–8.8 in this subgroup. 18F-FDG PET-CT false-positive results were obtained in 6 (11.8%) patients, false-negative – in 1 (1.9%) heavy pre-treated CC patient. 18F-FDG PET-CT sensitivity was 94.1%, specificity – 84.2%, positive predictive value – 72.7%, negative predictive value – 96.9%.Conclusions. 18F-FDG-PET-CT has a high diagnostic value in the differential diagnosis of loco-regional relapses and post-radiation tissue changes in CC and EC patients with suspected progression in pre-irradiated zones. But 18F-FDG-PET-CT findings evaluation and interpretation requires a multidisciplinary discussion and consensus for this cohort of patients.
Possibilities of CT angiography of the inferior mesenteric artery in planning resections of the left half of the colon in patients with colorectal cancer
Authors: Arablinskii A. V. , Seurko K. I. , Pashkovskaia A. A. , Voynovskiy A. E. , Stepanchenko A. P. , Kosenkov A. N. 
Published: May 2023

During laparoscopic surgery for colorectal cancer, vascular structures may be incorrectly identified and damaged due to ignorance of the variant anatomy of the inferior mesenteric artery (IMA), lack of tactile sensations, narrowed field of vision, which leads to complications such as massive bleeding and intestinal ischemia. Therefore, the preoperative study of the variant anatomy of the IMA is of paramount importance. Knowing the variant anatomy of the vessels before surgery, you can make an operation plan in advance, which will ensure fast and safe vascular ligation at the required level and lymph dissection.Aim: To develop a classification of IMA variability for practical use in operations for colorectal cancer. Optimize the standard abdominal scanning protocol to improve the accuracy of MSCT and the best visualization of the IMA and its branches.Material and methods. From February 2013 to March 2022, 214 computed tomograms (CT) of abdominal organs with intravenous contrast were analyzed. We studied the variant anatomy of the IMA. The abdominal cavity scanning protocol was optimized using a 100 kV tube voltage, the contrast density of the NBA and its branches was compared using standard and optimized scanning protocols during a retrospective analysis of 105 CT studies of abdominal organs.Results. We proposed the classification of structure of the IMA and its branches. This is especially important when the safe lymph node dissection along the IMA is necessary. I type – several colonic branches derivate from the IMA by independent trunks (54%); II type – all colon branches derivate from the IMA in one point like a “goose paw” (25%); III type – one colon branch departs from the IMA by a single trunk; then it divides into colonic branches (21%).The accuracy of MSCT of the abdominal organs with intravenous contrast, which was determined by comparing the results of studies with intraoperative data, was 97.9%. The sensitivity of the method is 95.8%, the specificity of the method is 100%.The use of a scanning protocol with a tube voltage of 100 kV makes it possible to simplify and speed up the determination of the anatomical type of structure, improve the visualization of the IMA and its branches.Conclusion. CT with 3D-reconstruction of vessels allows the surgeon to perform an extended LND for colorectal cancer with a minimal risk of complications.
Using an artificial intelligence algorithm to assess the bone mineral density of the vertebral bodies based on computed tomography data
Authors: Artyukova Z. R. , Kudryavtsev N. D. , Petraikin A. V. , Abuladze L. R. , Smorchkova A. K. , Akhmad E. S. , Semenov D. S. , Belyaev M. G. , Belaya Zh. E. , Vladzimirskyy A. V. , Vasiliev Yu. A. 
Published: May 2023

Goal: To develop a method for automated assessment of the volumetric bone mineral density (BMD) of the vertebral bodies using an artificial intelligence (AI) algorithm and a phantom modeling method.Materials and Methods: Evaluation of the effectiveness of the AI algorithm designed to assess BMD of the vertebral bodies based on chest CT data. The test data set contains 100 patients aged over 50 y.o.; the ratio between the subjects with/without compression fractures (Сfr) is 48/52. The X-ray density (XRD) of vertebral bodies at T11-L3 was measured by experts and the AI algorithm for 83 patients (205 vertebrae). We used a recently developed QCT PK (Quantitative Computed Tomography Phantom Kalium) method to convert XRD into BMD followed by building calibration lines for seven 64-slice CT scanners. Images were taken from 1853 patients and then processed by the AI algorithm after the calibration. The male to female ratio was 718/1135.Results: The experts and the AI algorithm reached a strong agreement when comparing the measurements of the XRD. The coefficient of determination was R2=0.945 for individual vertebrae (T11-L3) and 0.943 for patients (p=0.000). Once the subjects from the test sample had been separated into groups with/without Сfr, the XRD data yielded similar ROC AUC values for both the experts – 0.880, and the AI algorithm – 0.875. When calibrating CT scanners using a phantom containing BMD samples made of potassium hydrogen phosphate, the following averaged dependence formula BMD =0.77*HU-1.343 was obtained. Taking into account the American College Radiology criteria for osteoporosis, the cut-off value of BMD<80 mg/ml was 105.6HU; for osteopenia BMD<120 mg/ml was 157.6HU. During the opportunistic assessment of BMD in patients aged above 50 years using the AI algorithm, osteoporosis was detected in 31.72% of female and 18.66% of male subjects.Conclusions: This paper demonstrates good comparability for the measurements of the vertebral bodies’ XRD performed by the AI morphometric algorithm and the experts. We presented a method and demonstrated great effectiveness of opportunistic assessment of vertebral bodies’ BMD based on computed tomography data using the AI algorithm and the phantom modeling.