bluuebunny/crossref_metadata_2025_split huggingface dataset:
Numerical study on the effectiveness of directional well with multiple hydraulic slots for enhanced gas recovery in deep coal seam
Authors: Chen Yi , Zhou Lei , Peng Yu , Ren Xiangyan 
Published: October 2023

AbstractCoalbed methane production failures through hydraulic fracturing in the Linxing gas field in China have encountered significant setbacks, hindering efforts to enhance the recovery of deep CBM reserves in the region. To address this challenge, we investigate the potential of directional wells with multiple hydraulic slots as a stimulation technology for deep coalbed methane extraction. This study presents two numerical models to evaluate the effectiveness of this technology. The first model is a continuum damage numerical model based on the Material Point Method, which simulates large deformations and complex contact behaviors induced by hydraulic slotting in the deep coal seam. The second model is a wellbore-pore coupling model to simulate the gas extraction process. We verified both numerical models against theoretical and experimental results. We conducted a case study in the Linxing gas field using these models. The investigation assessed stress relief, gas desorption, and permeability enhancement around a large deformed hydraulic slot, as well as the gas extraction performance of a directional well with multiple slots. The results indicate that (1) The Linxing gas recovery failure may be attributed to unsuccessful hydraulic fracturing based on the history matching analysis of field production; (2) Hydraulic slotting causes gradual compaction of the slot until full closure, and results in a rapid stress drop exceeding 7 MPa in the elliptical zone surrounding the slot, which is the large plastic damage zone; (3) The enhanced permeability in plastic zone exceeds ten times the natural coal permeability, leading to total gas desorption of 556 m3 from elastic and plastic zones; (4) Performance optimization can be achieved through reducing slot length and increasing slot width when using directional well with multiple slots. In summary, this research demonstrates the efficiency of directional wells with multiple slots in enhancing gas recovery from deep coal seams.
Three-dimensional hydrological thresholds to predict shallow landslides
Authors: Lee Seulchan , Oh Seungcheol , Ray Ram. L. , Lee Yangwon , Choi Minha 
Published: October 2023

AbstractPast studies have focused on the importance of hydrological variables in analyzing landslide initiation condition. Even though precipitation is the main driver of shallow landslides and debris flows, use of only rainfall-based parameters has shown some limitations. Soil moisture has been used widely to improve threshold detection capabilities. Since soil moisture directly reflects the wetness status of the ground, it can be used to identify pore pressure fluctuations more effectively. This study used rainfall and soil moisture simultaneously to capture landslide initiation conditions in detail. Results showed that continued rainfall on the day of landslide leaded to a sudden increase in soil moisture, and that soil moisture increments (∆SM) were positive in 155 out of 170 landslide cases (91%). Two simple thresholds (daily precipitation over 40 mm, ∆SM over 0) and daily precipitation (P), Antecedent Precipitation Index (API), ∆SM-based three-dimensional threshold planes having 5%, 20% probability levels were applied and compared. With respect to false alarms (FA), P-based threshold was most effective among the single thresholds (FA ranging from 24 to 28 from September 2016 to December 2019 at five validation locations). Combining P- and ∆SM-based thresholds, FA reduced without compromising the detection accuracy (2 to 3 reduction in FA). Additionally combining three-dimensional threshold with 20% probability level, FA reduced significantly (ranging from 12 to 16), at the cost of two detection failures. These findings demonstrate the need for combining precipitation and soil moisture to determine landslide thresholds.
New principles to live by: and a change of skin
Authors: Davies Bronwyn 
Published: October 2023

AbstractThis paper explores the question of what matters and what is made to matter — the ethics of encounters in the intimate entwining of ontology and epistemology. Within an ethics based on matter and mattering, it explores the evolving symbiotic entanglement of humans with each other and with non-human beings, who, with us, make up the world. Our complex symbiotic relationality is discussed in relation to the limiting force of neoliberalism, where all that matters is economic growth and productivity. It asks what hope there is for the survival of the planet, when so many humans, including politicians of almost every stripe, have lost the capacity to think outside the neoliberal box. As things stand, as one scientist observed, it is as if we have a medical, terminal diagnosis, and, although there is a cure, we choose to ignore it. It asks what are those cures and explores the possibility that we humans might learn to respond — to be response-able to our planet, in its state of terminal distress.
Optimal VIX-linked structure for the target benefit pension plan
Authors: Chen Lv , Li Danping , Wang Yumin , Zhu Xiaobai 
Published: October 2023

AbstractIn this paper, we study the optimal VIX-linked target benefit (TB) pension design. By applying the dynamic programming approach, we show the optimal risk-sharing structure for the benefit payment exhibits a linear form that consists of three components: (1) a model-robust performance adjustment, (2) a counter-cyclical volatility adjustment that depends on the VIX index, and (3) a TB level that is partially indexed to the cost-of-living adjustment. Differences between our results and the previous literature are highlighted via both theoretical derivations and numerical illustrations.
Understanding refugee and immigrant health literacy and beliefs toward antimicrobial resistance
Authors: Ladines-Lim Joseph , Scruggs-Wodkowski Elizabeth , Adžemović Tessa , Croxton Rachel , Romero Ron , Lukela Michael , Rao Krishna , Mehrotra Preeti , Patel Payal K. 
Published: October 2023

Abstract
Refugee and migrant populations have increased vulnerability to antimicrobial resistance, yet stewardship guidance is lacking. We addressed this gap through a cross-sectional survey, finding that these populations and immigrants from low and middle-income countries had lower health literacy on the issue compared to native-born Americans and those from high-income countries.
Community Corrections Officers’ Perspectives of the Impact of Hurricane Maria on the Participant’s Mental Health and Substance Use: A Qualitative Content Analysis
Authors: Vega Graciela , Rivera-Berríos Nicole , Camacho-Martínez Vilmary , Marty Lugo René , Albizu-García Carmen 
Published: October 2023

Abstract

Objective:
This study explored community supervision officers’ perceptions of the individual, community, and organizational challenges confronted by program participants after Hurricane María and their recommendations for future emergency management.

Methods:
A qualitative content analysis was conducted for nine focus group with community supervision officers in Puerto Rico. Participants were asked about their perceptions of how the mental health and drug abuse of persons on parole or probation were affected and the measures taken to address these concerns in disaster response.

Results:
Narratives expose vulnerabilities experienced by those supervised and the aggregated challenges that impact retention in health and rehabilitative services, all of which can detract from successful sentence completion. The disaster response categories call for a more adaptable approach to overseeing procedures in light of the difficulties involved and recognizing the support of the supervised population who have contributed to community initiatives.

Conclusion:
Findings will contribute to informing planning, preparedness, and responses that mitigate the adverse consequences this vulnerable population may experience when exposed to future disaster hazards. Addressing emergency preparedness in this setting provides an opportunity to enact reforms in community supervision and improve access to services needed to enable the successful reintegration of individuals into their communities.
Agents, multilateral institutions, and fundamental institutional change in international society: The case of Russia’s peacekeeping policy
Authors: Hadano Takamitsu 
Published: October 2023

AbstractDrawing on recent debates in English School (ES) theory, this article develops an analytical framework for examining how states use multilateral institutions, or what ES theorists call ‘secondary institutions’, to reshape ‘primary institutions’, i.e. fundamental practices in international society. The framework highlights the role of states’ agency in international institutional change by shedding light on strategies that they employ to bring about changes in primary institutions. It posits that, although they can seek to directly remould primary institutions, states in practice often seek to bring about primary institutional changes through existing or newly formed secondary institutions and that this is especially the case at the level of regional international societies (RISs). The article demonstrates the utility of the framework by using it to analyse the case of Russia’s peacekeeping policy in the post-Soviet regional international society (PSRIS), focusing on its efforts to institutionalise the Collective Security Treaty Organization (CSTO) as an alternative ‘peacekeeping’ actor.
Animating theAffect–Care–Labor Linkin the Wake of “The Surrogacy (Regulation) Bill”: Care Ethics and Policymaking on Indian Surrogacy
Authors: Banerjee Amrita , Sharma Priya 
Published: October 2023

AbstractStarting from the early 2000s, India was one of the most sought-after destinations for commercial surrogacy. However, in 2015 the government decided to ban transnational commercial surrogacy, and recently “The Surrogacy (Regulation) Act, 2021,” which bans commercial surrogacy altogether and confines it to its altruistic form, has been enacted. Our article makes a philosophical intervention into the policy debate around this move by analyzing various draft versions of “The Surrogacy (Regulation) Bill” which culminated in the ban. We argue that the Bill fails to realize its ethical potential since it is vitiated by a number of conceptual fallacies. We expose the conceptual fallacies by unpacking the concept of care in gestational surrogacy through the lens of care ethics. The robust conceptualization of care serves as a critical vantage point for analyzing the Bill's distorted understanding of care (and especially the affect–care–labor link) in gestational surrogacy. Consequently, we conclude that regulation of commercial surrogacy with fair compensation and due consideration for the agency of surrogates holds far greater ethical potential than a blanket ban on commercial surrogacy and mandating that it be practiced only in its altruistic form.
Food, dignity, and the European Court of Human Rights
Authors: James Clare 
Published: October 2023

AbstractAusterity measures and the cost-of-living crisis have led to rising poverty rates and violations of socioeconomic rights in the UK and Europe. However, there are limited routes of redress for these violations in many European countries. Claims using Article 3 of the European Convention on Human Rights (ECHR) to address violations of socioeconomic rights are suggested but not fully described in the academic literature. The European Court of Human Rights has found violations of the Convention in very limited circumstances caused by poverty and destitution. These circumstances include violations of the ECHR in cases of insufficient food being provided to those detained by the state. This paper considers possible violations of Article 3 ECHR in relation to food poverty. It argues that hunger is a violation of human dignity and provides tangible evidence of degrading treatment. It identifies benefit caps, the two-child limit, and benefit sanctions as policies that can lead to food poverty and, as a result, could amount to degrading treatment. For some living in food poverty due to these policies, Article 3 ECHR may provide a route of redress.
Late glacial–Younger Dryas climate in interior Alaska as inferred from the isotope values of land snail shells
Authors: Nield Catherine B. , Yanes Yurena , Reuther Joshua D. , Muhs Daniel R. , Pigati Jeffrey S. , Miller Joshua H. , Druckenmiller Patrick S. 
Published: October 2023

AbstractThe isotope values of fossil snail shells can be important archives of climate. Here, we present the first carbon (δ13C) and oxygen (δ18O) isotope values of snail shells in interior Alaska to explore changes in vegetation and humidity through the late-glacial period. Snail shell δ13C values were relatively consistent through the late glacial. However, late-glacial shell δ13C values are 2.8‰ higher than those of modern shells. This offset is best explained by the Suess effect and changes in the δ13C values of snail diet. Snail shell δ18O values varied through the late glacial, which can be partially explained by changes in relative humidity (RH). RH during the snail growing period was modeled based on a published flux balance model. Results suggest a dry period toward the beginning of the Bølling–Allerød (~14 ka) followed by two distinct stages of the Younger Dryas, a wetter stage in the early Younger Dryas from 12.9 to 12.3 ka, and subsequent drier stage in the late Younger Dryas between 12.3 and 11.7 ka. The results show that land snail isotopes in high-latitude regions may be used as a supplementary paleoclimate proxy to help clarify complex climate histories, such as those of interior Alaska during the Younger Dryas.
Associations between dietary habits, socio-demographics and gut microbial composition in adolescents
Authors: Kemp Keri M. , Orihuela Catheryn A. , Morrow Casey D. , Judd Suzanne E. , Evans Retta R. , Mrug Sylvie 
Published: October 2023

AbstractThe relationship between dietary habits and microbiota composition during adolescence has not been well examined. This is a crucial knowledge gap to fill considering that diet–microbiota interactions influence neurodevelopment, immune system maturation and metabolic regulation. This study examined the associations between diet and the gut microbiota in a school-based sample of 136 adolescents (Mage = 12·1 years; age range 11–13 years; 48 % female; 47 % Black, 38 % non-Hispanic White, 15 % Hispanic or other minorities) from urban, suburban and rural areas in the Southeast USA. Adolescents completed the Rapid Eating Assessment for Participants and provided stool samples for 16S ribosomal RNA gene sequencing. Parents reported their child and family socio-demographic characteristics. The associations between diet and socio-demographics with gut microbiota diversity and abundance were analysed using multivariable regression models. Child race and ethnicity, sex, socio-economic status and geographic locale contributed to variation within microbiota composition (β-diversity). Greater consumption of processed meat was associated with a lower microbial α-diversity after adjusting for socio-demographic variables. Multi-adjusted models showed that frequent consumption of nutrient-poor, energy-dense foods (e.g. sugar-sweetened beverages, fried foods, sweets) was negatively associated with abundances of genera in the family Lachnospiraceae (Anaerostipes, Fusicatenibacter and Roseburia), which are thought to play a beneficial role in host health through their production of short-chain fatty acids (SCFAs). These results provide new insights into the complex relationships among socio-demographic factors, diet and gut microbiota during adolescence. Adolescence may represent a critical window of opportunity to promote healthy eating practices that shape a homoeostatic gut microbiota with life-long benefits.
On the vanishing of the coefficients of CM eta quotients
Authors: Huber Tim , Liu Chang , McLaughlin James , Ye Dongxi , Yuan Miaodan , Zhang Sumeng 
Published: October 2023

AbstractThis work characterizes the vanishing of the Fourier coefficients of all CM (Complex Multiplication) eta quotients. As consequences, we recover Serre’s characterization about that of $\eta(12z)^{2}$ and recent results of Chang on the pth coefficients of $\eta(4z)^{6}$ and $\eta(6z)^{4}$. Moreover, we generalize the results on the cases of weight 1 to the setting of binary quadratic forms.
Pea crabs (Pinnotheres pisum) colonisation of five commercial bivalve species from southern Portugal
Authors: Nicolau Lídia , Vasconcelos Paulo , Pereira Fábio , Carvalho André N. , Piló David , Gaspar Miguel B. 
Published: October 2023

Abstract
This study reports the spatial and depth distributions, occurrence and prevalence, infestation rate and intensity of the pea crab Pinnotheres pisum colonising five commercial bivalve species (Chamelea gallina, Donax semistriatus, Donax trunculus, Donax vittatus, and Spisula solida) along the south and southwest coasts of Portugal. In addition, the study also analysed the colonisation pattern, morphometric measurements and relative growth of P. pisum inhabiting those bivalve species. Overall, 33,370 bivalves were analysed, collected in 371 sampling stations at depths ranging from 3 to 25 m. A total of 102 bivalves hosted 106 P. pisum, corresponding to an infestation rate of 0.31%. Besides 13 juveniles, were recorded 60 males and 33 females of P. pisum, corresponding to a male-biased sex ratio (1M: 0.6F). Pea crabs carapace width ranged from 1.3 to 13.5 mm and males were smaller than females (hard females were also smaller than ovigerous soft females). In general, larger and heavier bivalves hosted larger and heavier P. pisum. Pea crabs morphometric relationships presented negative allometries, reflecting slower growth rates in carapace length and total weight compared to carapace width throughout the species ontogeny. Overall, this study provides valuable insights into diverse descriptors of bivalves' colonisation by P. pisum, comparing the main results and trends with analogous information available throughout the species distributional range. Although the current fairly low infestation by P. pisum does not constitute a health concern for these bivalve species, its evolution under a climate change scenario should be periodically monitored in the mid- and long-term.
Selective 6D grasping with a collision avoidance system based on point clouds and RGB+D images
Authors: Viturino Caio Cristiano Barros , Conceicao Andre Gustavo Scolari 
Published: October 2023

AbstractIn recent years, deep learning-based robotic grasping methods have surpassed analytical methods in grasping performance. Despite the results obtained, most of these methods use only planar grasps due to the high computational cost found in 6D grasps. However, planar grasps have spatial limitations that prevent their applicability in complex environments, such as grasping manufactured objects inside 3D printers. Furthermore, some robotic grasping techniques only generate one feasible grasp per object. However, it is necessary to obtain multiple possible grasps per object because not every grasp generated is kinematically feasible for the robot manipulator or does not collide with other close obstacles. Therefore, a new grasping pipeline is proposed to yield 6D grasps and select a specific object in the environment, preventing collisions with obstacles nearby. The grasping trials are performed in an additive manufacturing unit that has a considerable level of complexity due to the high chance of collision. The experimental results prove that it is possible to achieve a considerable success rate in grasping additive manufactured objects. The UR5 robot arm, Intel Realsense D435 camera, and Robotiq 2F-140 gripper are used to validate the proposed method in real experiments.
Establishing the Terminal Classic Ik'hubil Ceramic Sphere in the Eastern Maya Lowlands of Belize
Authors: Harrison-Buck Eleanor 
Published: October 2023

AbstractIn this study, I use the type-variety-mode analysis to define the diagnostic ceramic material for the Ik'hubil Ceramic Complex dating to the Terminal Classic (ca. a.d. 780–930/1000). The percentages of shared ceramic content indicate that multiple sites in the mid-to-lower Sibun Valley are members of an Ik'hubil Ceramic Sphere. My preliminary analyses of sites in the lower Belize River valley suggest that the Ik'hubil Sphere may extend across a broader area of north-central Belize during the Terminal Classic, discrete from the Spanish Lookout Sphere in the upper Belize Valley. Northern Yucatec traits are identified in ceramics and architecture in the eastern Sibun and Belize Valleys, along with marked changes in foodways. The presence of trading diasporas and more intimate social relationships, such as intermarriage, may explain this mix of local and hybrid forms of material culture introduced by the ninth century in this part of the eastern Maya Lowlands.
Maiores di pietra. L'immagine della famiglia nei monumenti sepolcrali della Regio X
Authors: Scalco Luca 
Published: October 2023

ResumenL'articolo indaga le immagini di famiglia sui monumenti funerari della Venetia, concentrate per lo più nel corso dell'età giulio-claudia, anche incrociando le informazioni epigrafiche e integrando l'analisi con elaborazioni quantitative. Si registra una certa codificazione del significato parentale, che emerge dallo schema iconografico e viene ribadito dai gesti, mentre abiti e oggetti aiutavano a caratterizzare il singolo ritratto. Non si riconosce una consistente alterazione del significato dell'immagine in base al contesto sociale o alla premorienza di alcuni membri della famiglia. L'analisi permette di comprendere quali fossero le tendenze trasversali su cui la committenza agiva per ritrarre il proprio nucleo domestico, dialogando con il contesto geografico e culturale di appartenenza e sintetizzando la realtà familiare del mondo dei vivi per creare un modello iconico per la comunità dei morti.
Sonic Domination and the Politics of Race in Southern Antebellum Hymnody
Authors: Castle Chase 
Published: October 2023

AbstractReligious music served a political function in the southern United States during the antebellum period. This article examines catechisms and hymnbooks used by white evangelical missionaries and slaveowners in the antebellum South, arguing that the planter elite deployed hymns as a medium to assert white supremacy. The term sonic domination identifies processes whereby sound functioned as a social tool to maintain discipline and order among the enslaved population. Black and white people sang hymns in church, at interracial revivals, and during civic services; they were also heard on bells and cited in poetry. English texts and tunes included in slave catechisms and white portrayals of Black singing highlight the role of evangelical hymns in maintaining plantation order in the Old South. At the same time, enslaved Black Christians found creative ways to circumvent the oppressive power of the white elite through song. African Americans employed English hymns in their own religious rituals and used them to convey hidden meanings on the plantation. Both genres, which interacted and ultimately influenced each other, contributed to an eventual codification of American evangelical hymnody.