bluuebunny/crossref_metadata_2025_split huggingface dataset:
Relocation of Seismicity in the Guadalentín Tectonic Valley, Eastern Betics Shear Zone (Southeast Iberia)
Authors: Sánchez-Roldán José Luis , Martínez-Díaz José J. , Cantavella Juan V. , Álvarez-Gómez José A. , Morales José 
Published: May 2021

Abstract
The eastern Betics shear zone comprises one of the most seismically active areas in Iberia, due to the presence of large active faults loaded by the oblique convergence between Eurasia and Africa plates. We focus our study on the sector of the eastern Betic Cordillera affected by the Alhama de Murcia fault (AMF) and other nearby faults that are the source of large paleoseismic events and some damaging historical earthquakes. This study aims to give more accurate locations to the hypocenters in the region around these faults, using a model that accounts for lateral variations of P-wave velocity. This task was accomplished, developing a new 3D velocity crustal model of the region, by combining recent regional and local geological and geophysical data, such as geological mapping, gravimetry, seismic-wave tomography, and seismic exploration surveys. Afterward, as a preliminary test of performance, we compared the hypocenters obtained with this model against the ones computed with other 1D velocity models, using NonLinLoc with a seismic dataset of the highest possible quality (i.e., filtered by a minimum magnitude) in this area within the period January 2015–December 2018. Then, for comparing the reliability of the new 3D local model against a larger 3D regional model, we carried out a final relocation with all the earthquakes of the Spanish Seismic Catalog in the study area for the period April 2011–October 2019. New locations obtained with the local model, which show better clustering near active structures and lower epicentral uncertainty in comparison with the regional model, allow us to observe possible genetic relation between seismicity and specific faults after the inversion, in particular, the AMF.
Rupture Models of Recent Mw&gt;7 Thrust Earthquakes in the Guerrero–Oaxaca Region of the Mexico Subduction Zone Using Teleseismic Body Waves
Authors: Mendoza Carlos , Martínez-López M. Rosario 
Published: May 2021

Abstract
We invert the teleseismic broadband (1–60 s period) ground-displacement body waveforms recorded for the 1995 Mw 7.3 Copala, the 1996 Mw 7.1 Oaxaca, the 2012 Mw 7.5 Ometepec, and the 2018 Mw 7.2 Pinotepa Nacional thrust earthquakes in the Guerrero–Oaxaca portion of the Mexico subduction zone to derive the best-fit rupture models using a sampling procedure in which input fault parameters are selected from a prescribed range of values. More than 400 independent inversions are performed for each event using random combinations of strike, rake, dip, and hypocenter depth. Waveform fits are observed to be relatively insensitive to variations in strike, rake, and focal depth but show a distinct dependence on fault dip. The lowest residuals are limited to a dip interval of about ±3°, indicating that a relatively precise estimate of the fault dip is necessary for the optimal derivation of slip models using teleseismic body waves. The best-fit teleseismic source models obtained for the four events show varying degrees of spatial detail, with the 2012 and 2018 earthquakes exhibiting more separated slip along the fault than has been observed in rupture models derived using frequency bands covering longer periods. Areas of high-interplate slip for the four events do not overlap, suggesting an adjoining pattern of asperity zones that is consistent with prior observations in northwest Mexico and in the New Britain region of the South Pacific. Additional investigation of this type of asperity interaction for recurrent events would be beneficial, given the implications for estimating the size and location of future large subduction earthquakes.
A Fast GUI-Based Tool for Group-Velocity Analysis of Surface Waves
Authors: Ryberg Trond , Haberland Christian , Green Robert G. , Sens-Schönfelder Christoph 
Published: May 2021

AbstractWe present an interactive graphical tool for extraction of group-velocity dispersion curves of seismic traces for rapid manual picking of large amounts of data: a task commonly encountered in ambient-noise tomography. The program can be used for group-velocity analysis of surface waves from earthquakes and controlled source data as well as of Green’s functions from cross-correlated ambient-noise data. The presented tool is especially suited to datasets in which automatic picking algorithms fail and so dispersion analysis is only possible by visual inspection. Such situations can occur in highly heterogeneous regions with complex surface-wave dispersion or where surface-wave arrivals are poorly emerged (as can often be the case with ambient-noise-derived Green’s functions from temporary seismic deployments). In these datasets, the poor signal-to-noise ratio, spectral holes, or limited bandwidth may therefore mean that manual analysis is the only choice. However, without an efficient workflow the feasibility of this can be seriously constrained by the analysis time for the potentially vast number of traces to be analyzed. We tackled this problem by implementing well-known techniques of dispersion curve analysis (traditional frequency–time analysis) in a fast and interactive graphical environment. It is specifically developed for high user processing speed, prioritizing fast computation, and high display responsiveness. This solution retains the benefits of manual dispersion picking for complex datasets, while maintaining good user processing efficiency. An experienced analyst can measure upward of 200 traces per hour. xdcpick stands for an X-window-based picking of dispersion curves.
COMPARATIVE ASSESSMENT OF INDIVIDUAL PARAMETERS OF BIOLOGICAL MATURITY IN PRESCHOOL CHILDREN OF OMSK, TAKING INTO ACCOUNT THE DENTAL
Authors: Skripkina Galina , Garifullina A'bina , Ekimov Evgeniy , Matskieva Olga , Romanova Yulia 
Published: May 2021

Subject. The child's development process takes place in stages. At the age of 4 to 6 years, children have the first growth spurt, as a result of which the trunk and limbs increase in length. This manifests itself in the appearance of the ability to perform the Philippine Test. The beginning of the change of teeth, the order and rate of teething are important indicators of biological maturation and harmonious development of the child's body. The lack of a standardized integrated approach among specialists of various profiles in determining the correspondence of the chronological age to the biological age of each examined child dictates the need to develop and apply in practice a universal test, taking into account the dental status of the patient living in a certain geographical region.
Background. The aim is to comprehensively assess the parameters of biological maturity of preschool children (5 and 6 years old) in the city of Omsk, taking into account the dental status.
Methodology. The study involved 5 and 6-year-old children attending the Omsk pre-school, 55 of them boys and 46 girls-a total of 101 children.
The children were divided according to odontological characteristics into three groups. The first group ― children whose number of available teeth corresponds to the terms of eruption according to Kolesov A. A. (1985); the second group ― children who have advanced terms of teething; the third group ― children whose terms of eruption lag behind the above terms.
Results. An interdisciplinary approach is needed, aimed at the timely diagnosis of mineral metabolism disorders in children and the appointment of an adequate set of preventive and therapeutic measures.
Findings. The established dissonance of the studied parameters of the biological maturity of the child dictates the need for a comprehensive approach to the planned medical examination of preschool children in order to determine the biological maturity of the child, taking into account the dental status of the growing organism.
JUSTIFICATION OF THE CHOICE OF THE METHOD OF USING THE CARBON COATING OF THE BASES OF REMOVABLE PROSTHESES FOR THE RELIEF OF TOXIC AND ALLERGIC REACTIONS OF THE ORAL MUCOSA
Authors: Gumanyuk Tatyana , Nurieva Natal'ya , Shirshova Nataliya , Dyuryagin Vitaly 
Published: May 2021

Subject. Despite the sufficient functionality of modern removable orthopedic structures, they are able to have a mechanical, chemical-toxic, sensitizing and thermally insulating effect on the mucous membrane of the prosthetic bed (NOZZLES). Violations of the integrity of the epithelium of the oral mucosa are often infected with the subsequent development of inflammation. If the traumatic factor has the character of a long-term impact, then the mechanism of chronic inflammation is triggered and maintained. In addition, there is a possibility of changing the nature of differentiation of epithelial or connective tissue cells of the oral mucosa, which can lead to the development of precancerous and tumor lesions. Therefore, the problem of early diagnosis, prevention and treatment is very relevant at the present time. In this regard, the issue of early and complete elimination of lesions of the oral mucosa with the introduction of new, more effective methods is of high importance.
The goal — to justify the choice of the method of applying carbon nanocoating on the basis of the prosthesis on the basis of a systematic analysis of literary sources.
Methodology. The article presents an analytical literature review on the problem of the reaction of prosthetic bed tissues to interaction with removable orthopedic dental structures. A method of processing the prosthesis base by applying a carbon nanocoating, which has been tested in clinical conditions, is presented.
Results. The method of processing removable orthopedic structures by applying a carbon nanocoating allows, with a partial change in the initial physical and chemical properties, to increase its bioinertness and can be used for the treatment of toxic-allergic, mechanical lesions of NOZZLES.
Conclusions. The analysis of literature sources allows us to justify the method of applying carbon nanocoating on the basis of the prosthesis as a method of treating toxic and allergic reactions of the oral mucosa.
Trapezius Tear Causing Scapular Winging Treated with Rhomboid Transfer and Achilles Allograft Reconstruction
Authors: Tang Peter , Schreck Mark 
Published: May 2021

Case:
This is a case of an 18-year-old woman with superior and lateral scapular winging due to traumatic injuries to the insertions of the superior and middle trapezius as well as the origins of the latissimus dorsi and lower trapezius.

Conclusion:
Scapular winging can be caused by a muscle tear in absence of a nerve injury. This patient underwent latissimus dorsi origin repair and superior and middle trapezius repairs. An Achilles allograft was used to reconstruct her lower trapezius to provide static restraint to her scapula, while a rhomboid major transfer was performed to provide dynamic restraint.
Mycoplasma hominis Lumbar Wound Infection After Posterior Decompression and Instrumented Fusion
Authors: Ng Stacy , Kumar Shree Dinesh , Loo Wee Lim 
Published: May 2021

Case:
A 63-year-old man underwent L2-S1 decompression and fusion for spinal stenosis. He developed urinary retention postoperatively requiring catheterization. He developed fever, purulence, and foot-drop 8 days postoperatively and underwent debridement with implant retention. Cultures yielded Mycoplasma hominis after 10 days. He received 4 weeks of doxycycline. Four years postoperatively, he had no recurrence of infection and was able to ambulate despite a persistent foot-drop.

Conclusion:

Mycoplasma hominis is a urogenital commensal rarely implicated in musculoskeletal infections. A high index of suspicion is required in spinal surgery patients who develop fever and purulence and have initial negative cultures and poor response to empirical antibiotics.
2D numerical simulation of the filling process of submarine minibasins: Study of deposit architecture
Authors: Bastianon Elena , Viparelli Enrica , Cantelli Alessandro , Imran Jasim 
Published: May 2021

ABSTRACTIntraslope basins, or minibasins, are topographic features of the continental slope that can be filled with sediment transported by submarine flows. These deposits may contain important hydrocarbon reservoirs. Here we present results of two-dimensional numerical simulations of multiple turbidity currents entering two linked minibasins. The numerical model accounts for the non-uniformity of sediment grain size in the flow and the resulting deposit. Model results reasonably reproduce the evolution of linked minibasins illustrated in the field based “fill-and-spill” conceptual model. The conceptual model was developed for the Brazos–Trinity system from field observations. Further, simulations of two linked minibasins show that the upstream basin traps most of the coarse sediment. This material is deposited in the proximal zone of the basin and fine sediment is transported farther downslope, resulting in the formation of a weak pattern of downstream fining. Model results with different initial and boundary conditions reveal that minibasin geometry and turbidity-current characteristics are important controls on the deposit shape and grain-size distribution.
STRUCTURAL AND PROTEIN PRESERVATION IN FOSSIL WHALE BONES FROM THE PISCO FORMATION (MIDDLE-UPPER MIOCENE), PERU
Authors: BOSKOVIC DANILO S. , VIDAL URIEL L. , NICK KEVIN E. , ESPERANTE RAUL , BRAND LEONARD R. , WRIGHT KENNETH R. , SANDBERG LAWRENCE B. , SIVIERO BETHANIA C.T. 
Published: May 2021

ABSTRACT
Microstructural and biomolecular preservation is reported in fossils as old as the Triassic. Such preservation suggests unusual taphonomic conditions. We collected fragments of fossil whale bone from silty, tuffaceous, and diatomaceous rocks of the middle-upper Miocene portion of the Pisco Formation. The whale fossils within the region are generally well-preserved and mostly articulated, including some specimens with in situ baleen. Due to the depositional setting associated with the preservation of these fossils, they could be expected to be favorable candidates for the preservation of cellular microstructures and/or original biomolecules. To test this hypothesis, fossil whale bone fragments were subjected to microscopic analysis and EDTA-mediated demineralization to release extractable materials. Microscopy of partially demineralized fossil bones revealed quartz-permineralized osteocyte-like and vessel-like structures. Protein assay (micro-Bicinchoninic Acid Assay) of the supernatants obtained from demineralized fossils yielded 12 to 19.5 μg of protein per gram of bone. MALDI-TOF analysis of the extracted protein demonstrated the presence of approximately 5 kD molecules in one fossil sample, consistent with the presence of highly fragmented polypeptides. An LC-MS/MS analysis of the fragmentation pattern of the tryptic digest of extracted protein was performed. However, attempted protein identification was unsuccessful. Nevertheless, this study first documents the microstructural preservation with some silicification of the fossil whale bones of the Pisco Formation, and then quantifies extractable protein from these bones. It adds to the growing body of reports of microstructural and organic preservation in fossils.
INVERTEBRATE AND PLANT TRACE FOSSILS FROM THE TERRESTRIAL LATE TRIASSIC OF ZIMBABWE
Authors: SCISCIO LARA , BRODERICK TIMOTHY J. , BARRETT PAUL M. , MUNYIKWA DARLINGTON , ZONDO MICHEL , CHOINIERE JONAH N. 
Published: May 2021

ABSTRACT
Late Triassic invertebrate and plant trace fossils are described from the Pebbly Arkose Formation of the Upper Karoo Group (Gwembe Sub-basin, Mid-Zambezi Basin), Zimbabwe. These ichnofossils appear in pedogenically modified siltstone and silty mudstone floodplain deposits and overbank fluvial channels. The ichnofossil-bearing sites show variability in their pedogenic features, maturity and preservation. Invertebrate ichnofossils are primarily recorded as horizontal, vertical and inclined burrows, sometimes branched, lined or unlined and may have an active meniscate infill. The common forms documented are Taenidium, Beaconites, Palaeophycus, Skolithos, and Planolites ispp. with some rare and more unusual morphologies (i.e., ‘Y’-shaped burrow type). Ichnofossil-bearing sites show a low-diversity but high-density of traces commonly dominated by Taenidium and Planolites ispp. The greatest diversity of invertebrate ichnofossils are within interbedded overbank sandstones in weakly pedogenically modified overbank sites. Rhizohalos and rhizoliths are common and often include carbonate infilled roots. Given the abundance and dimensions of fossilized wood and the rhizohalos and rhizoliths, the Pebbly Arkose Formation supported both large and small stature plants. Overall, the studied Pebbly Arkose Formation overbank areas are typically well-drained, calcic palaeosols subject to variable discharge, subaerial exposure, and supporting a diversity of plant and invertebrates tracemakers that lived in a semi-arid to sub-humid environment.
Development of a Probabilistic Framework for Risk-Based Well Decommissioning Design
Authors: Johnson Caroline , Sefat Morteza Haghighat , Elsheikh Ahmed H. , Davies David 
Published: May 2021

Summary
In the next decades, tens of thousands of well plugging and abandonment (P&A) operations are expected to be executed worldwide. Decommissioning activities in the North Sea alone are forecasted to require 2,624 wells to be plugged and abandoned during the 10-year period starting from 2019 (Oil&Gas_UK 2019). This increase in decommissioning activity level and the associated high costs of permanent P&A operations require new, fit-for-purpose, P&A design tools and operational technologies to ensure safe and cost-effective decommissioning of hydrocarbon production wells. This paper introduces a novel modeling framework to support risk-based evaluation of well P&A designs using a fluid-flow simulation methodology combined with probabilistic estimation techniques.
The developed well-centric modeling framework covers the full range of North Sea P&A well designs and allows for quantification of the long-term (thousands of years) evolution of hydrocarbon movement in the plugged and abandoned well. The framework is complemented by an in-house visualization tool for identification of the dominant hydrocarbon flow-paths. Monte Carlo methods are used to account for uncertainties in the modeling inputs, allowing for robust comparison of various P&A design options, which can be ranked on the basis of hydrocarbon leakage risks.
The proposed framework is able to model transient conditions within the well P&A system, allowing for the development of new key performance indicators (e.g., time until hydrocarbons reach surface and changes in hydrocarbon saturation within the P&A well). Such key performance indicators are not commonly used, because most published work in this area relies on steady-state P&A models.
The developed framework was used in the assessment of several P&A design cases. The results obtained, which are presented in this paper, demonstrate its value for supporting risk-based decision-making by allowing for quantitative comparison of the expected performance of multiple P&A design options for given well/reservoir conditions. The framework can be used for identifying cost-effective, fit-for-purpose P&A designs, for example by optimizing the number, location, and length of wellbore barriers and evaluating the effectiveness of annular cement sheath remedial operations. Additionally, this framework can be used as a sensitivity analysis tool to identify the critical parameters that have the greatest impact on the modeled leakage risks, to guide data acquisition plans and model refinement steps aimed at reducing the uncertainties in key model parameters.
Prevalence of mental health symptoms and its effect on insomnia among healthcare workers who attended hospitals during COVID-19 pandemic: A survey in Dhaka city
Authors: Ali Mohammad , Uddin Zakir , Ahsan Nawara Faiza , Haque Muhammad Zahirul , Bairagee Monisha , Khan Sabbir Ahmed , Hossain Ahmed 
Published: May 2021

Abstract
Background: During the COVID-19 pandemic, the high workload, risk of infection, and safety issues for family members may pose a threat to the mental health of healthcare workers (HCWs) working in hospital settings. The study aimed to find out the prevalence of anxiety, depression, and insomnia symptoms were among HCWs, as well as the factors related to these mental health issues.Methods: We conducted an online survey of HCWs employed in Dhaka city from June 6 to July 6, 2020. Symptoms of anxiety, depression, and insomnia were measured using the Generalized Anxiety Disorder, the depression module of the Patient Health Questionnaire, and the Insomnia Severity Index, respectively. The related factors of anxiety, depression, and insomnia symptoms were identified using three regression models.Results: This research included responses from 294 HCWs (mean± standard deviation age: 28.86±5.5 years; 43.5% were female). Anxiety, depression, and insomnia symptoms were found in 20.7%, 26.5%, and 44.2% of HCWs, respectively. The variable financial difficulties was commonly found as an associated factor for anxiety, depression, and insomnia symptoms. Female HCWs were more prone to mental health symptoms and insomnia compared to male HCWs (Adjusted odds ratio- AOR=2.20, 95% CI=1.27 – 3.79). The depression symptoms among HCWs were found to be a factor for insomnia (AOR=6.321, 95% CI= 3.158 – 12.650).Conclusion: In the current pandemic, the high prevalence of mental health symptoms among HCWs indicates that this occupational group being associated with increased mental distress. Increasing financial support for HCWs and providing support to female workers in care facilities could help to alleviate the burden of mental illness. Supportive, training, and educational strategies, particularly through knowledge and communication platforms, could be recommended to the care facilities, which can reduce the burden of mental health symptoms among HCWs.
Strategies for the Implementation of an Electronic Fracture Risk Assessment Tool in Long Term Care: A Qualitative Study
Authors: Bai Yuxin , McArthur Caitlin , Ioannidis George , Giangregorio Lora , Straus Sharon , Papaioannou Alexandra 
Published: May 2021

Abstract
Background: Older adults in long-term care (LTC) homes experience high rates of fractures, which are detrimental to their quality of life. The purpose of this study is to identify and make recommendations on knowledge translation interventions to implementing an evidence-based Fracture Risk Clinical Assessment Protocol (CAP) in LTC. Methods: Following the Behaviour Change Wheel framework, we conducted focus group interviews with 32 LTC stakeholders (e.g. LTC physicians) to identify barriers and facilitators, suggest intervention options, and discuss whether the identified interventions were feasible. The interviews were transcribed verbatim and analyzed using thematic content analysis. Results: The intervention themes that met the APEASE criteria were minimizing any increase in workload, training on CAP usage, education for residents and families, and persuasion through stories. Other intervention themes identified were culture change, resident-centred care, physical restructuring, software features, modeling in training, education for staff, social rewards, material rewards, public benchmarking, and regulations. Conclusions: To implement the Fracture Risk CAP in LTC, KT interventions centred around minimizing any increase in workload, training on CAP usage, providing education for residents and families, and persuading through stories may be used. Results from this work will improve identification and management of LTC residents at high fracture risk and could inform the implementation of guidelines for other conditions in LTC homes.