bluuebunny/crossref_metadata_2025_split huggingface dataset:
Seismic Electromagnetic Radiation Simulation Using Finite-Element Time-Domain Method
Authors: Yu Qinhua , Yang Xiaodong , Xu Zhifeng , Wu Xiaoping 
Published: October 2024

ABSTRACT
Low-frequency electromagnetic (EM) radiation is one of the major observed phenomena during seismogenic and rupture processes, playing a significant role in the study of seismic hazards and early earthquake warning. Previous research has shown that regardless of the specific mechanism, the seismic EM process can be studied through the simulation of dipole source radiation. Currently, these large-scale seismic EM simulations are mainly carried out by the finite-difference time-domain method. In this article, we present the first finite-element time-domain seismic EM simulation with adaptive time step size. The algorithm can guarantee unconditional stability during time iterations and has flexible grid adaptivity. The accuracy of the algorithm is verified by both the analytical solutions and the global Schumann resonance frequencies. To accurately simulate the propagation of low-frequency seismic EM waves, we further establish a realistic multiresolution model of the Earth–ionosphere system. In this model, a normalized excitation function of the seismic dipole source related to the rupture process is proposed to simulate electrokinetic-related EM radiation. Under these settings, simulation results show that the reflection effect of the ionosphere prohibits the seismic EM field from fast disappearance, yet its inner anomalies have slight effects on the resultant field. Meanwhile, the time-domain magnetic field is more sensitive to the source characteristics, for instance, the uplift and decline time of the seismic dipole pulse, than the frequency-domain waveforms. It is also observed that the seismic EM field in the air is higher than that in the Earth’s land. These results suggest the feasibility of air time-domain observation of the seismic EM field.
Shallow Reverse Moderate Earthquakes in the Weiyuan Shale Gas Field, Sichuan Basin, China, Related to Hydraulic Fracturing
Authors: Zhang Wenting , Guo Rumeng , Ji Lingyun , Yang Hongfeng , Dai Kun , Zi Jinping , Sun Heping 
Published: October 2024

Abstract
The Weiyuan shale gas field in the stable southern Sichuan basin, China, has experienced increasing seismicity since systematic hydraulic fracturing (HF) operations in 2015. Three Mw≥4.4 shallow earthquakes occurred in the Weiyuan area between September 2019 and February 2020, yet their seismogenic faults, rupture models, and relationship with HF are unknown. In this study, we first obtain the high-resolution coseismic deformation fields of these three events and then invert their slip distribution. The result shows that all three events are shallow high-dip reverse events under the contractional Weiyuan anticline environment with peak slips of 158, 68, and 34 cm and at depths of 4, 3, and 1.6 km, respectively. The spatial relationship between seismogenic faults, horizontal wells, as well as geological data reveals that pore-pressure diffusion due to the HF may be the main mechanism of the 8 September 2019 and the 18 December 2019 events, whereas the 16 February 2020 event may be attributed to the poroelastic stress perturbation caused by the HF. Our study highlights that HF activities and regional geological characteristics jointly influence the properties of earthquakes in the Sichuan basin.
Critical Questions About CSEP, in the Spirit of Dave, Yan, and Ilya
Authors: Schoenberg Frederic , Schorlemmer Danijel 
Published: October 2024

Abstract
In honor of our dear departed friends Yan Kagan, Dave Jackson, and Ilya Zaliapin, we propose a selection of broad questions regarding earthquake forecasting and especially the Collaboratory for the Study of Earthquake Predictability (CSEP) in particular and give our thoughts on their answers. This article reflects our opinions, not necessarily those of Yan Kagan, Dave Jackson, and Ilya Zaliapin, and not necessarily those of the seismological community at large. Rather than provide definitive answers, we hope to provoke the reader to think further about these important topics. We feel that Dave Jackson in particular might have liked this approach and may have seen this as an appropriate goal.
Peculiarities of Hemostasis and Proteomics in Patients With Acute Myocardial Infarction and Healthy Volunteers After SARS-CоV-2 Infection
Authors: Kalinskaya A. I. , Elizarova A. K. , Anisimova A. S. , Vorobyeva D. A. , Rusakovich G. I. , Maryukhnich E. V. , Dukhin O. A. , Ivanova O. I. , Bugrova A. E. , Brzhozovskiy A. G. , Indeykina M. I. , Kononikhin A. S. , Nikolaev E. N. , Vasilieva E. Yu. 
Published: October 2024

Aim. To identify the features of plasma, platelet hemostasis, and proteomic composition of the blood plasma in patients with acute myocardial infarction (AMI) and healthy volunteers after COVID-19.Material and methods. The study included patients with AMI who have recently had COVID-19 (AMI-post-COVID, n=56) and patients with AMI who have not recently had COVID-19 (AMI-control, n=141). Healthy volunteers constituted the control groups and were also divided into control-post-COVID (n=32) and control-control (n=71) groups. Previous SARS-CoV-2 infection was determined by anti-N IgG in the blood serum, the level of which persists for 6-10 months after the disease. Hemostasis was evaluated by thromboelastometry (on whole blood), thrombodynamics (on platelet-poor plasma), fibrinolysis, impedance aggregometry, and proteomic analysis.Results. The AMI-post-COVID and AMI-control groups had higher values of thrombus growth rate, size and density based on the data of thromboelastometry and thrombodynamics, as well as increased concentrations of the complement system components, proteins regulating the state of the endothelium, and a number of acute-phase and procoagulant proteins compared to the control groups. Furthermore, in the AMI-post-COVID group, compared to the AMI-control group, the thrombus density was lower, and its lysis rates were higher when measured by the thrombodynamics method on platelet-poor plasma, while the platelet aggregation induced by ADP and thrombin was higher. Also, in the control-post-COVID group, compared to the control-control group, the thrombus formation rate was lower, whereas, in contrast, the thrombus size as measured by the thrombodynamics method and the platelet aggregation induced by arachidonic acid and thrombin were higher. In addition, in the AMI-post-COVID group, compared to the AMI-control group, the concentrations of proteins involved in inflammation and hemostasis were lower.Conclusion. Patients with AMI who have recently had COVID-19 are characterized by a less pronounced activation of the immune response compared to patients with AMI who have not had COVID-19. This may be due to long-term chronic inflammation and depletion of components of the immune activation system after SARS-CoV-2 infection. Long-term activation of the hemostasis system in both patients with AMI and healthy volunteers after COVID-19 is primarily due to the platelet component of hemostasis.
Lived experience of male spouses of poly cystic ovarian syndromediagnosed females: An exploratory study
Authors: Mathan Diya 
Published: October 2024

Polycystic ovarian syndrome (PCOS) is a heterogeneous clinical entity leading to development of metabolic, endocrine, and reproductive disorder. Obesity lowers the chances of successful conception and even lowers the success rate of assisted reproduction technique cycles, and this is a major concern for young couples and females in their prime reproductive age. But there are also studies also which shows reduces quality of life and sexual satisfaction and life satisfaction in females with PCOD. Hence, we should also consider the other partner in couples diagnosed with PCOD. Thus, when looking into the family dynamics of PCOD diagnosed females, psychological wellbeing of their husband should also be equally studied as their emotions are highly influenced by their wife’s mental wellbeing. Even after biological treatment of PCOD, their psychological distress persists, and can may hinder their future quality of life. The objective of the study was to explore the experience of male spouse of clinically PCOS diagnosed females. The study was a phenomenological qualitative research design, with researcher-developed guiding questions to help direct interviews. The data was collected using purposive sampling from hospitals based on the inclusion criteria of the study. 6 participants were finally selected based on these criteria and saturation point was attained for the study by then. The findings of the study was 3 major themes were discovered, which were Awareness about PCOS, perception of husbands on PCOS and perception of women. 9 subthemes were also discovered under these themes. Implications of the study was more awareness should be given to both male and female population about the disorder and also encouraging men to talk more about their mental health.
The Influence of Character Traits to the Politeness Using on Serial Drama Losmen Bu Broto
Authors: Fauziyah Lailia Qodariana , Djatmika Djatmika , Nugroho Miftah 
Published: October 2024

This study aims to describe the impact of characters to use politeness in the drama. This study is a pragmatic research. The type of this study is a qualitative descriptive because the result of this study is in the form of explanation about the use of politeness. The data of this research were collected by using document analysis techniques. The results show that the character had by the listener affect the speaker use of politeness strategy. In the drama, it is found that the speaker who talk to the protagonist character mostly use positive politeness, whether to the antagonist they use more of negative politeness and bald on record.
English Teacher Agency in Implementing of HOTS-Based Learning: A Case Study at a State Islamic High School in Mataram
Authors: Wulansari Ovia , Lestari Yuni Budi 
Published: October 2024

Higher-order thinking skills (HOTS) are crucial for students when dealing with intense global competition. In the Indonesian education context, the recent high school national curriculum requires that students develop HOTS an important component of Pancasila student character. The curriculum implies the importance of the agentive role of teachers in implementing HOTS-based learning. However, studies on teacher agency in HOTS-based English language learning, especially in the Indonesian context, have remained under-examined. This study aims to explore teacher agency in responding to a policy mandate to implement HOTS-based learning in local English language classrooms in Indonesia. This study uses a sociocultural theoretical lens to examine teacher agency in responding to HOTS-related policy. Using a case study approach this study was conducted at a state Islamic high school in Mataram, West Nusa Tenggara. Two English teachers were purposively selected to be the participants of this study. This qualitative study employed observations and interviews as the techniques of data collection. The result found that the teachers exercise their agency by partially implementing HOTS-based learning as influenced by their knowledge of HOTS, experiences and pedagogical skills, and sociocultural condition of the students and the implication of this study is that support from policymakers, school leaders, and colleague teachers is needed for teachers to play their role actively in the HOTS policy reform.
Structure and evolution of metapolycentromeres
Authors: Grishko E. O. , Borodin P. M. 
Published: October 2024

Metapolycentromeres consist of multiple sequential domains of centromeric chromatin associated with a centromere-specific variant of histone H3 (CENP-A), functioning collectively as a single centromere. To date, they have been revealed in nine flowering plant, five insect and six vertebrate species. In this paper, we focus on their structure and possible mechanisms of emergence and evolution. The metapolycentromeres may vary in the number of centromeric domains and in their genetic content and epigenetic modifications. However, these variations do not seem to affect their function. The emergence of metapolycentromeres has been attributed to multiple Robertsonian translocations and segmental duplications. Conditions of genomic instability, such as interspecific hybridization and malignant neoplasms, are suggested as triggers for the de novo emergence of metapolycentromeres. Addressing the “centromere paradox” – the rapid evolution of centromeric DNA and proteins despite their conserved cellular function – we explore the centromere drive hypothesis as a plausible explanation for the dynamic evolution of centromeres in general, and in particular the emergence of metapolycentromeres and holocentromeres. Apparently, metapolycentromeres are more common across different species than it was believed until recently. Indeed, a systematic review of the available cytogenetic publications allowed us to identify 27 candidate species with metapolycentromeres. Тhe list of the already established and newly revealed candidate species thus spans 27 species of flowering plants and eight species of gymnosperm plants, five species of insects, and seven species of vertebrates. This indicates an erratic phylogenetic distribution of the species with metapolycentromeres and may suggest an independent emergence of the metapolycentromeres in the course of evolution. However, the current catalog of species with identified and likely metapolycentromeres remains too short to draw reliable conclusions about their evolution, particularly in the absence of knowledge about related species without metapolycentromeres for comparative analysis. More studies are necessary to shed light on the mechanisms of metapolycentromere formation and evolution.
A new leaf pubescence gene, Hl1th, introgressed into bread wheat from Thinopyrum ponticum and its phenotypic manifestation under homoeologous chromosomal substitutions
Authors: Simonov A. V. , Gordeeva E. I. , Genaev M. A. , Li W. , Bulatov I. O. , Pshenichnikova T. A. 
Published: October 2024

Blue-grain lines were created on the basis of the spring bread wheat variety Saratovskaya 29 (S29) with chromosome 4B or 4D replaced with chromosome 4Th from Thinopyrum ponticum. The leaf pubescence of the two lines differs from S29 and from each other. In this work, we studied the effect of these substitutions on the manifestation of this trait. To quantify pubescence, the LHDetect2 program was used to determine trichome length and number on the leaf fold microphotographs. The key gene Hl1 on chromosome 4B and another unidentified gene with a weak effect determine the leaf pubescence of the recipient S29. Their interaction leads to the formation of trichomes of up to 300 microns in length. Replacement of both copies of chromosome 4B with two copies of wheatgrass chromosome 4Th modifies leaf pubescence in line S29_4Th(4B) so that the leaf pubescence characteristic of S29 becomes more sparse, and trichomes of up to 600–700 µm in length are formed. Additionally, we described modification of pubescence in the substitution line S29_4Th(4D) where chromosome 4D that does not carry any pubescence gene was replaced. Under this substitution, trichomes of up to 400 µm in length were formed and the average length of trichomes on the underside of the leaf was reduced. The replacement of the Hl1 gene in the lines was also confirmed by the allelic state of the linked microsatellite marker Xgwm538. Thus, as a result of the studies, a new leaf pubescence gene introgressed from Th. ponticum into bread wheat was identified. We designated it as Hl1th. For the purpose of selection, we propose to use the unlicensed informative microsatellite markers Xgwm538 and Xgwm165, allowing chromosomes 4A, 4B, 4D and 4Th to be distinguished.
The effect of T. aestivum chromosomes 1A and 1D on fertility of alloplasmic recombinant (H. vulgare)-T. aestivum lines depending on cytonuclear compatibility
Authors: Pershina L. A. , Trubacheeva N. V. , Shumny V. K. 
Published: October 2024

The effect of T. aestivum L. chromosomes 1A and 1D on fertility of recombinant bread wheat allolines of the same origin carrying the cytoplasm of barley H. vulgare L. and different levels of cytonuclear compatibility was studied. Alloline L-56 included mainly fully sterile (FS) and partially sterile (PS) plants, alloline L-57 included partially fertile (PF) plants and line L-58 included fertile (F) ones. Analysis of morphobiological traits and pollen painting indicated complete or partial male sterility in plants of allolines L-56 and L-57. To differentiate genotypes with cytonuclear coadaptation and genotypes with cytonuclear incompatibility, PCR analysis of the 18S/5S mitochondrial (mt) repeat was performed. Heteroplasmy (simultaneous presence of barley and wheat mtDNA copies) was found in FS, PS, PF and some F plants, which was associated with a violation of cytonuclear compatibility. Wheattype homoplasmy (hm) was detected in the majority of the fertile plants, which was associated with cytonuclear coadaptation. The allolines used as maternal genotypes were crossed with wheat-rye substitution lines 1R(1A) and 1R(1D). In F1, all plants of PF×1R(1A) and PF×1R(1D) combinations were fertile, and in F2, a segregation close to 3 (fertile) : 1 (sterile) was observed. These results showed for the first time that chromosomes 1A and 1D carry one dominant Rf gene, which controls the restoration of male fertility of bread wheat carrying the cytoplasm of H. vulgare. All plants of F1 combinations FS×1R(1A), FS×1R(1D), PS×1R(1A), PS×1R(1D) were sterile, which indicates that a single dose of genes localized on wheat chromosomes 1A or 1D is not enough to restore male fertility in FS and PS plants. All plants of hybrid combinations F(hm)×1R(1A) and F(hm)×1R(1D) in both F1 and F2 were fertile, that is, fertility of allolines with cytonuclear coadaptation does not depend on wheat chromosomes 1A and 1D.
Genetic aspects of lactase deficiency in indigenous populations of Siberia
Authors: Malyarchuk B. A. 
Published: October 2024

The ability to metabolize lactose in adulthood is associated with the persistence of lactase enzyme activity. In European populations, lactase persistence is determined mainly by the presence of the rs4988235-T variant in the MCM6 gene, which increases the expression of the LCT gene, encoding lactase. The highest rates of lactase persistence are characteristic of Europeans, and the lowest rates are found in East Asian populations. Analysis of published data on the distribution of the hypolactasia-associated variant rs4988235-C in the populations of Central Asia and Siberia showed that the frequency of this variant increases in the northeastern direction. The frequency of this allele is 87 % in Central Asia, 90.6 % in Southern Siberia, and 92.9 % in Northeastern Siberia. Consequently, the ability of the population to metabolize lactose decreases in the same geographical direction. The analysis of paleogenomic data has shown that the higher frequency of the rs4988235-T allele in populations of Central Asia and Southern Siberia is associated with the eastward spread of ancient populations of the Eastern European steppes, starting from the Bronze Age. The results of polymorphism analysis of exons and adjacent introns of the MCM6 and LCT genes in indigenous populations of Siberia indicate the possibility that polymorphic variants may potentially be related to lactose metabolism exist in East Asian populations. In East Asian populations, including Siberian ethnic groups, a ~26.5 thousand nucleotide pairs long region of the MCM6 gene, including a combination of the rs4988285-A, rs2070069-G, rs3087353-T, and rs2070068-A alleles, was found. The rs4988285 and rs2070069 loci are located in the enhancer region that regulates the activity of the LCT gene. Analysis of paleogenomic sequences showed that the genomes of Denisovans and Neanderthals are characterized by the above combination of alleles of the MCM6 gene. Thus, the haplotype discovered appears to be archaic. It could have been inherited from a common ancestor of modern humans, Neanderthals, and Denisovans, or it could have been acquired by hybridization with Denisovans or Neanderthals. The data obtained indicate a possible functional significance of archaic variants of the MCM6 gene.
Focal Fibrocartilaginous Dysplasia and Growth Arrest
Authors: Adhiyaman Akshitha , Tracey Olivia C. , Nagra Kiranpreet , Zucker Colson P. , Wisch Jenna L. , Jones Ruth H. , Fabricant Peter D. , Heyer Jessica H. , Widmann Roger F. , Doyle Shevaun M. 
Published: October 2024

Case:
A pediatric patient with focal fibrocartilaginous dysplasia (FFCD) developed angular deformity and growth arrest despite standard guided growth management. The patient underwent implant-mediated guided growth for proximal tibia varus deformity which recurred; subsequently, a physeal bar of the medial proximal tibia was diagnosed, which progressed to physeal arrest.

Conclusion:
Treatment options for FFCD-associated angular deformity include observation and guided growth. This case highlights the risk of complete physeal arrest in FFCD.
Capacity Factor Forecasting for Generation Facilities Based on Renewable Energy Sources in Decentralized Power Systems
Authors: Bramm A. M. , Matrenin P. V. , Papkova N. A. , Sekatski D. A. 
Published: October 2024

One of the directions of development of the electric power industry is decentralization, aimed at improving the reliability of energy supply, reducing losses during transmission of electric energy and ensuring energy independence of consumers. It is possible to simulate decentralized power systems, including distributed generation facilities, by implementation of multi-agent systems that allow solving design and control problems taking into account the needs of each participant in the process of production, transmission, distribution and consumption of electricity. The development of distributed generation using a multi-agent approach requires the creation of models for assessing the technical and economic efficiency of decisions made by each agent, both at the strategic and tactical levels. The strategic decisions of agents related to distributed generation include, among other things, the creation of power facilities and power plants based on renewable energy sources. An important factor for making such decisions is the estimation of the capacity factor. However, currently there are no models for its estimation with high reliability. The present paper proposes a new algorithm for estimating the capacity factor for the entire territory of a certain administrative unit and a model for its forecasting based on climatic and geographical parameters. The study was conducted on a data sample of 221 generation facilities (solar and wind power plants) in four oblasts (regions) of the Russian Federation. It has been determined that the capacity factor can be forecasted with a mean error within 4 % for photovoltaic power plants and 9 % for wind power plants. Therefore, it is possible to use the developed algorithm and model both in decision support systems when choosing the location of this types of power plants, and in systems that model the development of power systems using a multi-agent approach.