bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mine seismic source location via forward modeling of spherical waves in a multilayered horizontal or inclined medium
Authors: Wang Shuai , Hu Zhaoxin , Lu Sha-sha 
Published: March 2024

AbstractSeismic source location is a classic inverse problem in seismology. In mathematical physics, inverse problems have multiple natural solutions. The objective of this study was to develop a generic theory and method of seeking the true solution from multiple solutions for the location of a coal mine seismic source in an idealized velocity structure model of a coal mine with a small scale and complex geological environment. Starting from the simplest velocity structure model, the complexity of the model gradually increased, until it approached the real velocity structure model, i.e., the multilayered horizontal and inclined velocity structure model, in order to find a generic method for solving the multi-solution inverse problem of coal mine seismic source location. Specifically, the wavefront distribution equation in a two-layer horizontal medium was derived and then expanded to any multi-layer horizontal medium. Based on this equation, a positive definite nonlinear equation system was established from the perspective of any observation system. The equation system contained four unknown variables of the spatiotemporal position of the seismic source. To determine the spatiotemporal parameters of the seismic source, nonlinear equations for four stations were required. To solve the nonlinear equation system, an initial iteration value was determined. In order to reduce the difficulty of determining the initial iteration value, the variable substitution method was used to reduce the number of location parameters. By rotating the original geodetic coordinate system of the station to be parallel and orthogonal to the medium interface, the wavefront method was extended to inclined medium. In conclusion, in this study, the problem of coal mine seismic source location in a multi-layer horizontal or inclined medium was effectively solved. The method proposed in this study provides a reference for solving the true solution from multiple solutions for the location of a coal mine seismic source in small-scale coal mines with complex geological environments.
Mechanisms and experimental study of directional thermal shock fracture of granite under bidirectional horizontal loading
Authors: Zhang Chao , Feng Zijun , Mi Chen , Chen Zhengnan , Geng Haojian , Shen Chenguang 
Published: March 2024

AbstractThe study of the mechanism of thermal shock directional fracture of rocks under bidirectional horizontal stress is important for the application of directional thermal shock fracture technology. With the engineering background of the thick igneous roof overlying the coal seam, we conducted high temperature thermal shock directional fracture tests on granite under different horizontal loads to investigate the fracture mechanism. The results show that during the directional thermal shock of granite, the heating rate of borehole surrounding rock experienced three stages of rapid increase, rapid decrease and slowly decrease. AE tests were used to characterize the typical features of rocks during thermal shock fracture: the appearance of macrocracks in the specimen was accompanied by sharp increases in the cumulative AE count and the sudden drops in b-value. The experimental results show that thermal shock can create macroscopic directional fractures within the rock. Within a certain range of horizontal stress difference, the expansion direction of thermal shock cracks could be released locally from geological stress control, i.e. expanding along the direction of the minimum horizontal dominant stress. This provides completely new thinking for the cutting of hard roof and the directional fracturing of rock. In addition, directional thermal shock caused modifications in the distribution of stress in borehole surrounding rocks. We have established a model for stress distribution around the borehole rock and given the calculation formula for the initiation stress of the rock. The studies provide significant theoretical guidance for the industrial application of directional thermal shock fracturing technology.
The maize ZmCPK39-ZmKnox2 module regulates plant height
Authors: Zhu Mang , Guo Chenyu , Zhang Xiaohui , Liu Yulin , Jiang Xiaohui , Chen Limei , Xu Mingliang 
Published: March 2024

AbstractPlant height is an important agronomic trait that affects high-density tolerance and lodging resistance. However, the regulators and their underlying molecular mechanisms controlling plant height in maize remain understudied. Here, we report that knockout mutants of the calcium-dependent protein kinase gene ZmCPK39 (ZmCPK39-KO) exhibit dramatically reduced plant height, characterized by shorter internodes and a slight decrease in node numbers. Furthermore, we identified a ZmCPK39-interacting protein, the knotted-related homeobox (ZmKnox2), and observed that plant height was also significantly reduced in a mutator transposon-inserted mutant of ZmKnox2 (ZmKnox2-Mu). Combined analysis of transcriptomic and metabonomic data indicates that multiple phytohormone signaling and photosynthesis pathways are disrupted in both ZmCPK39-KO and ZmKnox2-Mu mutants. Taken together, these results provide new insights into the function of ZmCPK39 and identify potential targets for breeding lodging-resistant and high-density tolerant maize cultivars.
Human–machine collaboration using gesture recognition in mixed reality and robotic fabrication
Authors: Kyaw Alexander Htet , Spencer Lawson , Lok Leslie 
Published: March 2024

AbstractThis research presents an innovative approach that integrated gesture recognition into a Mixed Reality (MR) interface for human–machine collaboration in the quality control, fabrication, and assembly of the Unlog Tower. MR platforms enable users to interact with three-dimensional holographic instructions during the assembly and fabrication of highly custom and parametric architectural constructions without the necessity of two-dimensional drawings. Previous MR fabrication projects have primarily relied on digital menus and custom buttons within the interface for user interaction between virtual and physical environments. Despite this approach being widely adopted, it is limited in its ability to allow for direct human interaction with physical objects to modify fabrication instructions within the virtual environment. The research integrates user interactions with physical objects through real-time gesture recognition as input to modify, update, or generate new digital information. This integration facilitates reciprocal stimuli between the physical and virtual environments, wherein the digital environment is generative of the user’s tactile interaction with physical objects. Thereby providing user with direct, seamless feedback during the fabrication process. Through this method, the research has developed and presents three distinct Gesture-Based Mixed Reality (GBMR) workflows: object localization, object identification, and object calibration. These workflows utilize gesture recognition to enhance the interaction between virtual and physical environments, allowing for precise localization of objects, intuitive identification processes, and accurate calibrations. The results of these methods are demonstrated through a comprehensive case study: the construction of the Unlog Tower, a 36’ tall robotically fabricated timber structure.
Reductive soil disinfestation by mixing carbon nanotubes and mushroom residues to mitigate the continuous cropping obstacles for Lilium Brownii
Authors: Tu Ding‑Di , Song Rong , Yan Bei , Dai Jin-Feng , Fang Hua , Zheng Qian-Qi , Gu Yi , Shao Xiao-Lan , Chen Hong , Li Meng-Long , Liu Kai-Lin 
Published: March 2024

AbstractReductive soil disinfestation can effectively alleviate continuous cropping obstacles. The effects of mixing mushroom residues and carbon nanotubes on the structure and function of soil microbial communities and self-toxic substances in Lilium brownii var are still unclear. We evaluated the nature of different soil treatments on soil physicochemical properties, microbial community structural response, and the impact of self-toxic substances. Compared with the compound fertilizer treatment, both organic fertilizer and mushroom residues treatments improved soil pH to 7.06 and 6.57, respectively. Carbon nanotubes treatment increased the relative abundance of Acidobacteriota by approximately 3.96%, although it could not significantly affect the soil pH. The mushroom residues flooded cover film treatment increased the soil pH to 6.75, replenished soil elements, and increased the relative abundance of Verrucomicrobiota and Campylobacterota by 1.62% and 1.79%, respectively. Carbon nanotubes and mushroom residues flooded cover film treatment significantly increased the diversity of the bacterial community. The relative abundances of Acidobacteriota, Verrucomicrobiota, Actinobacteria, and Chloroflexi increased by 2.4%, 1.39%, 0.80%, and 0.53%, respectively. Additionally, the minimum number of self-toxic substances was detected through GC–MS analysis. The results of this study showed that mushroom residues flooded cover film treatment could directly improve the soil microbial community structure by changing the physicochemical properties of the soil, and mixed carbon nanotubes further adsorbed the self-toxic substances. The species composition of fungal communities in the soil had been altered in a way by the different treatments, but the fungal diversity didn't change significantly. This research provides a theoretical basis for revealing the mechanism of continuous cropping obstacles in lily and offering better guidance for sustainable development in lily.
Potential role of hypoxia in maintaining lactation persistency of dairy cows
Authors: Hu Zhenzhen , Luo Lin , Lu Yi , Cai Jie , Liu Jianxin , Wang Diming 
Published: March 2024

Abstract
Mammary gland health plays a key role in maintaining lactation persistency. As a well-known factor involved in physiological processes, the role of oxygen levels in bovine mammary health and lactation persistency remains to be investigated. The present study aimed at investigating the potential regulatory role of hypoxia in the mammary gland of dairy cows with different lactation persistency. Sixty-one Holstein dairy cows were selected for a 180-day experiment at approximately 88 days in milk (DIM). Plasma, milk and mammary tissue samples from 61 cattle were collected on experimental days 0, 90 and 180 (corresponding to 88, 178 and 268 DIM), respectively. Of the 61 cows, 12 cows with high lactation persistency (HP) and 12 with low lactation persistency (LP) were selected for the current study. No difference was observed in milk yield between two groups on d 0 (Pd 0 = 0.67), whereas differences emerged between animals with different lactation persistency at d 105 (Pd 105 = 0.03) until d 180 (Pd 180 < 0.01). The level of mammary apoptosis was significantly higher in the LP group than in the HP cows (Ppersistency < 0.01). In the oxygen-related variables, plasma concentration of hypoxia-inducible factor 1α (HIF-1α) was higher in the LP cows than in the HP group (Ppersistency < 0.01), especially on d 0 (Pd 0 < 0.01). Compared with HP cows, LP cows had a higher malonaldehyde (Pd 180 = 0.01) and a lower activity of inducible nitric oxide synthase (Pd 180 = 0.01) on d 180, suggesting a possible oxygen alteration between cows with different lactation persistency. RNA-sequencing analysis of the mammary gland on d 0 revealed that HIF-1 associated molecules may play a role in driving mammary gland apoptosis in dairy cows. A lower lactation persistency of dairy cows may be resulted from the altered HIF-1α in the mammary gland.
Approximate homomorphisms and sofic approximations of orbit equivalence relations
Authors: HAYES BEN , KUNNAWALKAM ELAYAVALLI SRIVATSAV 
Published: March 2024

AbstractWe show that for every countable group, any sequence of approximate homomorphisms with values in permutations can be realized as the restriction of a sofic approximation of an orbit equivalence relation. Moreover, this orbit equivalence relation is uniquely determined by the invariant random subgroup of the approximate homomorphisms. We record applications of this result to recover various known stability and conjugacy characterizations for almost homomorphisms of amenable groups.
A Tapestry of Human-Induced and Climate-Driven Environmental Change in Western Uganda: The Ndali Crater Lakes Region
Authors: Schmidt Peter R. , Walz Jonathan R. , Besigye Jackline N. , Lejju Julius B. 
Published: March 2024

Abstract
Recent archaeological and paleoenvironmental research in the Ndali Crater Lakes Region (NCLR) of western Uganda provide important new insights into anthropogenic impacts on moist forests to the East of the Rwenzori Mountains. This research significantly changes previous interpretations of paleoenvironmental records in western Uganda and helps to distinguish climate change from human impacts. By drawing on multiple sources such as historical linguistics, archaeological evidence, and environmental proxies for change, a new picture emerges for a region that was a cultural crossroads for early Bantu-speakers and Central Sudanic-speakers between 400 BCE and 1000 CE. Detailed archaeological data and well-dated sites provide fine-grained evidence that closely fits episodes of significant environmental change, including a later and separate phase of forest clearance, soil degradation, and lake pollution caused by the saturation of the landscape by Bigo-related populations between 1300 and 1650 CE.
Fresque de changements environnementaux induits par l’homme et le climat dans l’ouest de l’Ouganda : la région des lacs du cratère de Ndali
Phylogenetic Economics: Animal Models and the Study of Choice
Authors: Schulz Armin W. 
Published: March 2024

AbstractWhile the investigation of non-human economic decision-making is increasingly popular, it is not clear exactly what role it can play in settling debates in economics. This paper argues that—contrary to recent claims otherwise—data on animal decision-making do not help in (dis–)confirming economic theories of choice. Rather, such data help in spelling out the representationally proper domains of models of choice. To play this role, though, these data must be placed into phylogenetic comparative analyses: correlations with specific environmental features need to be assessed, and these correlations need to be corrected for the presence of phylogenetic signals.
First sightings of mimic octopus Thaumoctopus mimicus (Cephalopoda: Octopodidia) from the Southwest Indian Ocean with photographic records from the Inhambane Province of southern Mozambique
Authors: Marshall Andrea D. , Conradie Janneman , Gilroy Taryn 
Published: March 2024

Abstract
Two separate sightings, two years apart, of the mimic octopus Thaumoctopus mimicus Norman & Hochberg, 2005 are reported from the Inhambane Province of southern Mozambique within the protected waters of the Vilanculos Coastal Wildlife Sanctuary. Individuals were encountered in May 2020 and 2022 in shallow waters, at a depth of less than 30 cm. Both individuals were fully exposed moving along a sandy substrate at the water's edge in a tidal flat. These represent the first documented sightings of T. mimicus in Mozambique, confirming the occurrence of the species along the eastern coast of Africa and extending this species' known range west from the Arabian Sea and south from the Red Sea.
Examining the dimensionality of vocabulary in English as a second language in Chinese children
Authors: Xie Qiuzhi , Yeung Susanna Siu-Sze 
Published: March 2024

AbstractThis study compared a unidimensional model of vocabulary and a two-factor model comprising vocabulary breadth and depth in a second language (L2). A total of 167 Chinese Grade 4 and 5 primary school children (Meanage= 9.96 years old) learning English as an L2 participated in this study, and they were tested on four English vocabulary tests. Our results of confirmatory factor analyses indicate that vocabulary breadth and depth were not two distinct dimensions, and the unidimensional model was supported. Theoretical and practical implications were discussed.
Dualist Land Regime, the Hukou System and the Welfare of Migrant Workers in Chinese Cities
Authors: Ruan Zhihang 
Published: March 2024

AbstractWhy is China's household registration system so resilient, and why are migrant workers consistently excluded from equal urban welfare? By disaggregating the hukou and land components of the rural–urban dualist regime, this article argues that dualist land ownership, formalized in China's 1982 Constitution, perpetuates the hukou system and unequal welfare rights. On the one hand, dualist land ownership results in an abundance of low-cost, informal housing in urban villages. This reduces the cost of short-term labour reproduction and diminishes migrants’ demands for state-defined urban rights. On the other hand, dualist land ownership enables local governments to amass significant revenues from land sales. The prominence of land-based revenues prompts local governments to link urban welfare rights with formal property ownership and residency, obstructing substantive reforms to the hukou system. For comparison, this article highlights Vietnam, a communist country with a unitary land ownership system, which has made greater strides in reforming its household registration system.
Exploring the Alternatives to the Male-Breadwinner Model – The Implications for Social Policy Study
Authors: Saxonberg Steven 
Published: March 2024

Abstract
This article begins by discussing some of the main approaches that have emerged to gender and family policy, before proceeding to discuss more modern trends. It begins by discussing institutional approaches, such as the male-breadwinner model, defamilialisation, degenderisation. Then it discusses cultural approaches, such as the national ideals of care, gendered moral rationalities, and Hakim’s preference theory. Then this article continues by briefly discussing attempts to broaden the discussion by bringing in children (including through the capabilities approach) and by adding an intersectional perspective.
Gamson going global? Cabinet proportionality in comparative perspective
Authors: Chaisty Paul , Power Timothy J. 
Published: March 2024

AbstractWe conduct a global, large-N analysis of proportionality in the partisan distribution of cabinet portfolios. Formulated in the context of postwar Western European parliamentary democracy, Gamson’s Law predicts that parties joining a coalition government will receive cabinet ministries in direct proportion to the seats they are contributing to the coalition on the floor of the legislature. Using a sample of 1551 country-years of coalitional government in 97 countries from 1966 to 2019, and comparing all main constitutional formats (parliamentary, presidential, and semi-presidential), we find that Gamson’s Law does not travel well outside its context of origin. Among the constitutional predictors of cabinet proportionality, we find that pure presidentialism is a major outlier, with an exaggerated form of formateur advantage. Introducing party-system and assembly-level predictors to the debate, we find that party institutionalization tends to increase fairness in portfolio allocation within parliamentary systems only.
Alignment of density maps in Wasserstein distance
Authors: Singer Amit , Yang Ruiyi 
Published: March 2024

Abstract
In this article, we propose an algorithm for aligning three-dimensional objects when represented as density maps, motivated by applications in cryogenic electron microscopy. The algorithm is based on minimizing the 1-Wasserstein distance between the density maps after a rigid transformation. The induced loss function enjoys a more benign landscape than its Euclidean counterpart and Bayesian optimization is employed for computation. Numerical experiments show improved accuracy and efficiency over existing algorithms on the alignment of real protein molecules. In the context of aligning heterogeneous pairs, we illustrate a potential need for new distance functions.
A toroidal SAW gyroscope with focused IDTs for sensitivity enhancement
Authors: Tian Lu , Zhao Haitao , Shen Qiang , Chang Honglong 
Published: March 2024

AbstractA surface acoustic wave (SAW) gyroscope measures the rate of rotational angular velocity by exploiting a phenomenon known as the SAW gyroscope effect. Such a gyroscope is a great candidate for application in harsh environments because of the simplification of the suspension vibration mechanism necessary for traditional microelectromechanical system (MEMS) gyroscopes. Here, for the first time, we propose a novel toroidal standing-wave-mode SAW gyroscope using focused interdigitated transducers (FIDTs). Unlike traditional SAW gyroscopes that use linear IDTs to generate surface acoustic waves, which cause beam deflection and result in energy dissipation, this study uses FIDTs to concentrate the SAW energy based on structural features, resulting in better focusing performance and increased SAW amplitude. The experimental results reveal that the sensitivity of the structure is 1.51 µV/(°/s), and the bias instability is 0.77°/s, which are improved by an order of magnitude compared to those of a traditional SAW gyroscope. Thus, the FIDT component can enhance the performance of the SAW gyroscope, demonstrating its superiority for angular velocity measurements. This work provides new insights into improving the sensitivity and performance of SAW gyroscopes.
Association of neurotransmitter pathway polygenic risk with specific symptom profiles in psychosis
Authors: Warren Tracy L. , Tubbs Justin D. , Lesh Tyler A. , Corona Mylena B. , Pakzad Sarvenaz S. , Albuquerque Marina D. , Singh Praveena , Zarubin Vanessa , Morse Sarah J. , Sham Pak Chung , Carter Cameron S. , Nord Alex S. 
Published: March 2024

AbstractA primary goal of psychiatry is to better understand the pathways that link genetic risk to psychiatric symptoms. Here, we tested association of diagnosis and endophenotypes with overall and neurotransmitter pathway-specific polygenic risk in patients with early-stage psychosis. Subjects included 205 demographically diverse cases with a psychotic disorder who underwent comprehensive psychiatric and neurological phenotyping and 115 matched controls. Following genotyping, we calculated polygenic scores (PGSs) for schizophrenia (SZ) and bipolar disorder (BP) using Psychiatric Genomics Consortium GWAS summary statistics. To test if overall genetic risk can be partitioned into affected neurotransmitter pathways, we calculated pathway PGSs (pPGSs) for SZ risk affecting each of four major neurotransmitter systems: glutamate, GABA, dopamine, and serotonin. Psychosis subjects had elevated SZ PGS versus controls; cases with SZ or BP diagnoses had stronger SZ or BP risk, respectively. There was no significant association within psychosis cases between individual symptom measures and overall PGS. However, neurotransmitter-specific pPGSs were moderately associated with specific endophenotypes; notably, glutamate was associated with SZ diagnosis and with deficits in cognitive control during task-based fMRI, while dopamine was associated with global functioning. Finally, unbiased endophenotype-driven clustering identified three diagnostically mixed case groups that separated on primary deficits of positive symptoms, negative symptoms, global functioning, and cognitive control. All clusters showed strong genome-wide risk. Cluster 2, characterized by deficits in cognitive control and negative symptoms, additionally showed specific risk concentrated in glutamatergic and GABAergic pathways. Due to the intensive characterization of our subjects, the present study was limited to a relatively small cohort. As such, results should be followed up with additional research at the population and mechanism level. Our study suggests pathway-based PGS analysis may be a powerful path forward to study genetic mechanisms driving psychiatric endophenotypes.