bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sustainable longwall partial filling mining strategies and optimal design of paste filling process
Authors: Zhou Yongqiang , Wang Changxiang , Liao Changlong , Wang Jianhang , Zhang Baoliang 
Published: January 2024

Abstract
Different methods of longwall full mining partial filling have been extensively studied to meet the special mining requirements of pressure coal resources and residual coal resources. The research aims to reduce production costs, ensure safe and efficient production of filling mining. Three longwall partial filling mining technologies are proposed: room-pillar filling mining, parallel strip filling mining, and vertical strip filling mining. Numerical simulation and the Analytic Hierarchy Process (AHP) model are utilized to analyze the effects of these methods. The results demonstrate that vertical strip filling mining exhibits the smallest surface deformation and the most regular displacement distribution. Additionally, an AHP model is employed to determine the index weights for safety, economic factors, stress, displacement, and filling cost. A hierarchical structure is established with safety and economic mining as the target layer, and stress, displacement, and economic factors as the criterion layer. The vertical strip filling mining method was calculated as the 1comprehensive optimal scheme. In practical operations, the filling technology and filling material performance play crucial roles in determining the filling effect. The study includes the optimization analysis of the filling technology, focusing on the composition of the coal gangue paste filling system and the optimization of the system components. Additionally, the study investigates the optimization analysis of filling materials, particularly the performance optimization methods. Experimental results demonstrate that optimizing the filling materials can improve the performance of the filling paste, enhancing both early-stage and long-term compressive strength. This research can provide valuable insights into the optimal design of longwall partial filling mining methods.
Greek Proverbs: Computational Spatial Attribution
Authors: Pavlopoulos John , Louridas Panos 
Published: January 2024

Abstract

Proverbs carry wisdom transferred orally from generation to generation. Based on the place they were recorded, this study introduces a publicly-available and machine-actionable dataset of more than one hundred thousand Greek proverbs. Using linguistic distance as our lens, we quantified the spatial distribution of widespread proverbs. By focusing on the least widespread proverbs, we benchmarked geographical attribution, using text classification and regression (text geocoding). Our results show that this is a challenging task for which specific locations can be attributed more successfully compared to others. The potential of our resource and benchmark is showcased by two novel applications. First, we extracted terms moving the regression prediction toward the four cardinal directions. Second, we leveraged conformal prediction to attribute 3,676 unregistered proverbs with statistically rigorous predictions of areas each such proverb was possibly registered in.
Manufacture of tunnel-shaped sheet metal parts with improved accuracy using novel toolpath strategies for single point incremental forming
Authors: Behera Amar Kumar , Lagodziuk Filip 
Published: January 2024

Abstract
Single point incremental forming is a novel sheet metal forming process that crafts 3D shapes out of sheet metal using layerwise deformation of the metallic sheet with a simple tool, which is typically cylindrical with a hemispherical ball-end. In this work, a combination of intelligent clamping and toolpath strategies were used to manufacture tunnel-shaped parts using aluminum alloy, AA1050AH14. The toolpath strategies helped improve on the low forming limits for failure typically associated with the manufacture of such shapes. A new method for compensating the inaccuracies in the parts caused by springback and other plastic deformations associated with the process using predicted 2D sectional views was also tested. The predicted sectional views were generated using training sets from the scanned geometries consisting of large datasets of point clouds. The training sets helped generate multivariate regression equations which were then used to create the predicted sections. The predicted sections were interpolated to create compensated geometries which then enabled part manufacture with improvement in accuracy. The result from this new strategy was compared with improvements observed in 3D compensation followed by adaptive pocketing and contouring toolpath strategies.
Novel approach in static shift correction for magnetotellurics data using 2D electrical resistivity imaging
Authors: Rahman Nazrin , muztaza Nordiana Mohd , Rosli Najmiah , Jia Teoh Ying , Saad Rosli , Rosli Farid Najmi , Md Mohd Firdaus , Seong Goh Khean , Saad Muhamad Safid , Tating Frederick Francis , Adewumi Taiwo , Anda Sabrian Tri 
Published: January 2024

Abstract

Magnetotellurics (MT) method utilizes lightning activities and solar wind interactions as electromagnetic sources in measuring resistivity distribution to great depths. Static shift is a common problem in MT where actual MT data is shifted higher or lower in logarithmic scale but maintains the same apparent resistivity (ρA) curve. Currently, MT static shift is corrected using vertical electrical sounding (VES) and transient electromagnetic (TEM) data, which give ρA data in 1D that does not depicts subsurface materials precisely. In contrast, 2D electrical resistivity imaging (2D ERI) provides data in lateral and vertical directions; therefore, better images the ground with higher sensitivity to inhomogeneity. Additionally, true resistivity (ρT) obtained after inversion provides a better representation of the Earth than ρA. Therefore, this study develops a new static shift correction using 2D ERI ρT data. 2D ERI lines were conducted across MT stations to obtain the best resistivity model and extract ρA and ρT values beneath MT stations as two data groups for static shift correction. Resistivity data from 2D ERI was employed to constrained MT phase inversion to obtain the actual MT response for every MT station. Resistivity curve from MT survey was then shifted to the actual response to achieve its true resistivity level. The results obtained from ρA and ρT shifts yielded RMS values of < 11.3 and < 6.9 respectively. The lower RMS values indicates that the ρT shifts is more effective in removing static shift effect. Qualitatively, model without static shift correction yielded illogical resistivity values while the other models were acceptable. This showcases that the performance of novel MT static shift correction using ρT surpasses conventional method and is reliable for future usage.
Efficient palladium-catalyzed electrocarboxylation enables late-stage carbon isotope labelling
Authors: Skrydstrup Troels , Batista Gabriel , Ebenbauer Ruth , Bergare Jonas , Neumann Karoline , Hopmann Kathrin Helen , Elmore Charles , Rosas@Hernández Alonso , Day Craig 
Published: January 2024

Abstract
Carbon isotope labelling of bioactive molecules is a critical step for accessing the pharmacokinetic and pharmacodynamic properties of new drug entities. Aryl carboxylic acids represent an important class of structural motifs commonly found in many pharmaceutically active molecules and are ideal target structures for the installation of a radioactive tag employing isotopically labelled CO2. However, direct isotope incorporation via the reported catalytic reductive carboxylation (CRC) of aryl electrophiles relies on excess CO2, which is incompatible with carbon-14 isotope incorporation. Furthermore, the application of some CRC reactions for late-stage carboxylation is limited because of the low tolerance of molecular complexity by the catalytic systems. Herein, we report the development of a practical and affordable electrochemical CRC setup based on palladium catalysis. This approach enables the use of near-stoichiometric 14CO2 generated from the primary carbon-14 source Ba14CO3, facilitating late-stage and single-step carbon-14 labelling of pharmaceuticals and representative precursors. Further studies provide more details in the mechanistic understanding of this process, allowing CRC to be performed in solvents alternative to DMF. The proposed isotope-labelling protocol holds significant promise for immediate impact on drug development programmes.
Observational study of the effect of preoperative consumption of different doses of carbohydrates before spinal surgery
Authors: Qiu Chengru , Li Ao , Li Jia , Chang Jie , Ma Siqi , Zhang Xi 
Published: January 2024

Abstract
Objective
To investigate the effects of two carbohydrate doses administered 2 hours prior to spinal surgery on the perioperative period of patients, aiming to add evidence to help optimize enhanced recovery after surgery (ERAS).
Methods
One hundred patients undergoing spinal surgery were divided into a 200 ml carbohydrate group (group A) and a 400 ml carbohydrate group (group B), with 50 patients in each group, according to the random number method. Patients in both groups consumed the carbohydrates (maltodextrin fructose drink) 2 hours before surgery. The gastric antral cross-sectional area (CSA) of the patients was recorded using gastric ultrasound at different time points. Gastric volume (GV), gastric emptying rate, and the proportion of patients with gastric emptying were calculated. Postoperative hunger, thirst, and anxiety scores were recorded on a visual analog scale (VAS). Postoperative nausea and vomiting (PONV) and length of stay (LOS) were recorded.
Results
The mean CSA and GV of both groups had returned to baseline at T4, with no significant difference from Tm (P > 0.05). Group B exhibited a lower gastric emptying rate than group A during period A1 (P < 0.05), while it was faster in group B during periods A2, A3, and A4 (P < 0.05). At T4, almost all patients had gastric emptying, the emptying rates of group A and group B being 92% and 88%, respectively. When comparing the blood glucose values before drinking (Tm) vs. after the operation (T5), there were no differences in either group (P > 0.05). The hunger and thirst scores of patients in group B were significantly lower than those in group A (P < 0.05). There was no significant difference in anxiety score, incidence of nausea and vomiting or length of stay (P > 0.05).
Conclusion
Oral carbohydrate drinks of 400 ml or 200 ml administered 2 hours prior to spinal surgery are safe for patients and can be incorporated into ERAS protocols to minimize postoperative complications and facilitate patient recovery. The larger 400 ml carbohydrate dose brings no increased risk of aspiration and effectively alleviates patient discomfort such as hunger and thirst.
The space 3D analogue of the Euler–Darboux equation with strong degeneracy
Authors: Dolgopolov Mikhail , Elisov Maksim , Rodionova Irina 
Published: January 2024

Abstract
On the set Ω, which is a prism bounded by the planes y=x, y=0, x=h, z=0, z=h (h>0), a space 3D analogue of the Euler–Darboux–Poisson equation is considered with two parameters taking values 1) α=1, 0 < β < 1; 2) α=1, 1 < β < 2; 3) α=1, −1 < β < 0. The singularity plane of the coefficients of the equation z = x − y divides the set Ω into two subregions, in which for each of the three cases: a) a general solution to this equation is constructed; b) problems with boundary conditions on the plane z = x − y were formulated and solved (modified Cauchy problems); c) on the set Ω, a boundary value problem was solved with data on adjacent faces of the prism and matching conditions on the internal plane z = x − y.
The molecular architecture of Lactobacillus S-Layer: Assembly and attachment to teichoic acids
Authors: Sagmeister Theo , Gubensäk Nina , Buhlheller Christoph , Grininger Christoph , Eder Markus , Ðordić Anđela , Millán Claudia , Medina Ana , Sánchez-Murcia Pedro , Berni Francesca , Hynönen Ulla , Vejzović Djenana , Damisch Elisabeth , Kulminskaya Natalia , Petrowitsch Lukas , Oberer Monika , Palva Airi , Malanović Nermina , Codée Jeroen , Keller Walter , Usón Isabel , Pavkov-Keller Tea 
Published: January 2024

Abstract
S-layers are crystalline arrays found on bacterial and archaeal cells. Lactobacillus is a diverse family of bacteria known especially for potential gut health benefits. This study focuses on the S-layer proteins from Lactobacillus acidophilus and Lactobacillus amylovorus common in the mammalian gut. Atomic resolution structures of Lactobacillus S-layer proteins SlpA and SlpX exhibit domain swapping and the obtained assembly model of the main S-layer protein SlpA aligns well with prior electron microscopy and mutagenesis data. The S-layer's pore size suggests a protective role, with charged areas aiding adhesion. A highly similar domain organization and interaction networks is observed across the Lactobacillus genus. Interaction studies revealed conserved binding areas specific for attachment to teichoic acids. The structure of the SlpA S-layer and the suggested incorporation of SlpX, as well as its interaction with teichoic acids lays the foundation for deciphering its role in immune responses and for developing effective treatments for a variety of infectious and bacteria-mediated inflammation processes, opening new opportunities for targeted engineering of the S-layer or lactobacilli bacteria in general.
Amino acid NCA polymerization: A century of misconceptions.
Authors: Kanazawa Hitoshi 
Published: January 2024

Abstract
The primary amine-initiated polymerization of amino acid N-carboxyanhydrides (NCAs) has long been thought to proceed by a living polymerization mechanism. In addition, NCA polymerization at low initiator concentrations is known to stop at a certain conversion. However, the formation of high molecular weight poly(amino acid)s with monodisperse-molecular-weight-distribution, which is essential for living polymerization, has not been reported for nearly 100 years. Several prominent researchers have proposed side reactions that interfere with polymerization to explain these results. Since molecular weight control by amine-initiated NCA polymerization is impossible in the presence of side reactions, new initiators have been investigated. However, I have successfully obtained poly(γ-benzyl-L-glutamate) with high molecular weight and monodisperse-molecular-weight-distribution in the NCA polymerization initiated by common primary amines using high purity NCA and avoiding moisture, with good reproducibility. Polymer formation with a monodisperse-molecular-weight-distribution was confirmed by gel permeation chromatography, with sharp chromatograms corresponding to standard polymers. I found that the polymerization stops halfway because polymer aggregation occurs when the degree of polymerization reaches about 70-80. I would say that many NCA polymerization failures are caused by the lack of two techniques: inadequate NCA purification and failure to prevent moisture contamination in the system. This study sheds light on the reasons for previous undesirable results. I must say that there are no side reactions in NCA polymerization.
Prediction of multiscale lamina structure and high quality reservoirs in shale: A case study of the Lianggaoshan Formation in northeastern Sichuan Basin, China
Authors: youzhi wang , cui mao , xuefeng bai , xiaodong wang , zhiguo wang , Ce An 
Published: January 2024

Abstract
Shale has become an important reservoir and source rock for unconventional oil and gas development. The Lianggaoshan Formation in the Sichuan Basin comprises a set of shales located under a lacustrine rock layer, where alternating silt, mud, and carbonate laminae exist, demonstrating strong heterogeneity. Reservoir quality and oil-bearing potential aredetermined using shale lamina structures. Therefore, the accurate and precise identification of lamina structures plays an essential role in the successful exploration and development of shale oil. In this study, shales were classified into laminated, layered, and massive rocks based on the density of laminae. The meter-scale layers were identified using conventional logs, whereas µm-to-cm scales were identified through image logs and related slabs. The mineral composition of laminae was further revealed based on thin-section observation and quantitativeassessment of minerals usingQEMSCAN technology. High quartz and clay contents were found for the silt laminated type, high calcite and clay contents were observed for the carbonate laminated type, and varying clay and organic matter contents were found for the mud laminated type. Typical alternating band characteristics were observed in the image logs; The dark, orange, and light layers were identified as mud,, silt, and carbonate in the slabs, respectively. The relations between the types of lamina structures, nuclear magnetic resonance logs, and oil test data were also analyzed. The development of the layered type fundamentally influenced the quality of shale reservoirs, and the proportion of the layered type was strongly associated with the production capacity of shale oil. The layered rocks were better than the massive and laminated rocks in terms of reservoir quality and oil-bearing potential. The results of this study provide a basis for predicting multiscale lamina structures from log data, facilitating the exploration and development of shale oil not only in the Lianggaoshan Formation but also worldwide.
Investigating the effect of using Wii Fit on functional balance and elbow joint flexion in children with spastic unilateral cerebral palsy: an interventional study
Authors: Mohammadi Mahsa , Maleki Mahshad , Fatorehchy Saeid , Vahedi Mohsen 
Published: January 2024

Abstract
Background
Rehabilitation of CP population is often challenging for therapists due to insufficient motivation. The Wii Fit balance board can interest CP children to improve their imbalance symptoms.
Objectives
We aimd to assess the effectiveness of Wii Fit on the functional balance and range of motion of the elbow among children with unilateral spastic cerebral palsy.
Method
We used visual analysis to determine the effect of Wii fit. Children's functional balance data was captured using the Pediatric Balance Scale(PBS). We calculated Percentage of Nonoverlapping Data for PBS scores And the timed up and go(TUG) to measure physical mobility and level of functional capacity. to know the exact effect size of the intervention on the TUG test results, the Hedges'g index was used.
Results
The Hedges'g index scores consistently above 0.8, showed a significant difference in PBS scores between the baseline and follow-up phases, as well as between the baseline and intervention phases. The TUG test results showed a significant difference between baseline and intervention phases, while between intervention and follow-up, lacked significance. Hedges'g index scores confirmed significant changes between baseline and intervention phases but only identified significant differences in TUG test scores for children No. 2, 5, and 7 when comparing intervention and follow-up phases. The results of changes in active and passive elbow flexion, respectively, showed intervention-related improvements that remained stable in the follow-up phase. Data overlap and Hedges'g index scores suggested consistent improvements between baseline and follow-up and baseline and intervention phases. In contrast, the intervention-to-follow-up phase comparison showed significance for selected children.
Conclusion
This study confirmed that "the Wii Balance Board" is effective on functional balance. However, the effects of the Wii balance board on the elbow range of motions require further studies.
Dietary self-management in university soccer players: are there differences by athletic performance?
Authors: Takahashi Ryunosuke , Fujii Takako 
Published: January 2024

Abstract
Worldwide, athletes have become increasingly concerned about becoming emaciated in recent years. Moreover, university athletes who continue to train at a high intensity are more likely to be undernourished due to intense nutrient depletion and frequent dietary deficiencies. We therefore investigated energy deficits through a dietary survey of athletes in order to determine whether their ability to self-manage food varied according to their athletic ability. Thirty-four participants who were members of a university soccer club were included in this study. To assess self-management ability based on athletic ability, athletes were divided into two groups: a high athletic ability group (group A) and a general athletic ability group (group B). We found that hemoglobin levels were 15.7 (SD 1.3) g/dl for group A and 15.5 (0.8) g/dl for group B, with no anemic subjects in either group. Group A had significantly higher serum ferritin levels than group B. A nutritional assessment showed that group A had significantly higher levels of energy, protein, carbohydrate, iron, vitamin B2, vitamin C, and dietary fiber than group B. When athletes' nutrient intake was compared to their nutritional intake goals, group A met more items than group B. In addition, a comparison of PFC rates (Protein: Fat: Carbohydrate as % of total energy) showed that group A was within the target amounts, whereas group B had a higher percentage of fat. These results suggest that group A was more capable of self-management of their diet than group B.
Nutritional status and growth performance of Fijian local chickens and their crosses with broilers under different production systems
Authors: Berukilukilu Lorenzo T. , Bakare Archibold G. , Iji Paul A. , Zindove Titus Jairus 
Published: January 2024

Abstract
The study compared nutrient content intake and growth performance of local chickens and local x broilers crossbreds under scavenging and indoor conventional systems. A total of 48 male and 48 female chickens for each of the two chicken types were allocated to four outdoor free-range pens and allowed to scavenge whilst being supplemented with sorghum plus kitchen waste and broilers growers from week 5 to week 13 of age. The same design was repeated on indoor pens with the chickens being fed the same diets without scavenging. The crops and gizzards contents from local chickens had the same crude protein and crude fat as their crosses with broilers under both systems (P > 0.05). The energy content of crop and gizzard contents from scavenging chickens was lower than that from chickens under indoor conventional system (P < 0.05). Chickens of the same type had high iron content in their crops and gizzards contents under scavenging system than the conventional system (P < 0.05). Local chickens and their crosses with broilers had higher growth rates under the scavenging system than the indoor production system (P < 0.05). Local chickens and their crosses with broilers had the same growth rates when fed the same diet (P > 0.05). Crossbreds between local chickens and broilers matches the scavenging abilities of the local chickens but have lower growth rates under scavenging systems.