bluuebunny/crossref_metadata_2025_split huggingface dataset:
Schwinger dark matter production
Authors: Bastero-Gil Mar , Ferraz Paulo B. , Ubaldi Lorenzo , Vega-Morales Roberto 
Published: October 2024

Abstract
Building on recently constructed inflationary vector dark matter production mechanisms as
well as studies of magnetogenesis, we show that an inflationary dark Schwinger mechanism
can generate the observed dark matter relic abundance for `dark electron' masses as light as ∼
0.1 eV and as heavy as 1012 GeV. The dark matter can interact very weakly via the exchange
of light dark photons with a power spectrum which is peaked at very small scales, thus evading
isocurvature constraints. This mechanism is viable even when (purely) gravitational particle
production is negligible. Thus dark matter can be produced solely via the Schwinger effect during
inflation including for light masses.
M2CS: A microwave measurement and control system for large-scale superconducting quantum processors
Authors: Zhang 张 Jiawei 家蔚 , Sun 孙 Xuandong 炫东 , Guo 郭 Zechen 泽臣 , Yuan 袁 Yuefeng 跃峰 , Zhang 张 Yubin 玉斌 , Chu 储 Ji 继 , Huang 黄 Wenhui 文辉 , Liang 梁 Yongqi 咏棋 , Qiu 邱 Jiawei 嘉威 , Sun 孙 Daxiong 大雄 , Tao 陶 Ziyu 子予 , Zhang 张 Jiajian 家健 , Guo 郭 Weijie 伟杰 , Jiang 蒋 Ji 骥 , Linpeng 林 Xiayu 彭夏雨 , Liu 刘 Yang 阳 , Ren 任 Wenhui 文慧 , Niu 牛 Jingjing 晶晶 , Zhong 钟 Youpeng 有鹏 , Yu 俞 Dapeng 大鹏 
Published: October 2024

Abstract
As superconducting quantum computing continues to advance at an unprecedented pace, there is a compelling demand for the innovation of specialized electronic instruments that act as crucial conduits between quantum processors and host computers. Here, we introduce a microwave measurement and control system (M2CS) dedicated to large-scale superconducting quantum processors. M2CS features a compact modular design that balances overall performance, scalability and flexibility. Electronic tests of M2CS show key metrics comparable to commercial instruments. Benchmark tests on transmon superconducting qubits further show qubit coherence and gate fidelities comparable to state-of-the-art results, confirming M2CS’s capability to meet the stringent requirements of quantum experiments running on intermediate-scale quantum processors. The compact and scalable nature of our design holds the potential to support over 1000 qubits after upgrade in stability and integration. The M2CS architecture may also be adopted to a wider range of scenarios, including other quantum computing platforms such as trapped ions and silicon quantum dots, as well as more traditional applications like microwave kinetic inductance detectors and phased array radar systems.
Enhanced sensing of anharmonicities in a gain-based anti-PT symmetric system
Authors: Zeng 曾 Ya-Wei 亚伟 , Yang 杨 Tian-Le 天乐 , Lin 林 Qi-Yin 琪茵 , Su 苏 Wan-Jun 万钧 
Published: October 2024

Abstract
We study the enhanced sensing of weak anharmonicities in a gain-based cavity–magnon–waveguide coupled system. By dissipatively coupling the two subsystems through a mediating waveguide, the Hamiltonian of the system is tailored to be anti-parity-time symmetric. Unique to the gain condition, the eigenvalues exhibit two singularities with linewidth suppression, distinguishing them from those of gain-free systems. Under the gain condition, a counter-intuitive bistable signature emerges even at low drive powers. As the effective gain approaches a certain value, this bistability yields a significantly enhanced spin-current response of the magnon mode. Consequently, the sensitivity, quantified by an enhancement factor, is enhanced remarkably compared to the linewidth suppression scenario. Moreover, the high enhancement factor can be sustained over a broad gain-bandwidth and also stays large even when the coherent coupling becomes considerably strong. Based on the integrated cavity–magnon–waveguide systems, this scheme can be used for sensing different physical quantities related to the Kerr-type nonlinearity and has potential applications in high-precision measuring microwave-signal nonlinearities.
Dispersion of anhydrous ammonia inside a confined space onboard a hypothetical ammonia-powered vessel
Authors: Basuni Hamzah Anthony , Kay Leng Ng Clara , Liu Ming 
Published: October 2024

Abstract
In order to ensure the responsible use of anhydrous ammonia as clean marine fuel, safety aspects in respect of its post-release consequence cannot be understated. This contribution is aimed to address the gaps of understanding associated to events of ammonia loss of containment (LoC) in enclosed spaces onboard ammonia-fuelled vessels. A forced ventilated fuel preparation room (FPR) onboard a container vessel is chosen as a study case with minor and major release scenarios, which is based on the orifice size. The dispersion analysis was performed using three-dimensional computational fluid dynamics. The analysis revealed that toxicity associated to the rapid and persistent ammonia vapor cloud buildup is by far the most significant hazard in the space. In the major release scenario, gradual evaporation of rainout pool increases the vapor cloud persistence even far beyond the leak isolation time. The results and finding above underlines the importance of concerted effort in mitigating not only the ammonia vapor cloud, but also the accumulated ammonia liquid pool.
Evaluating Environmental Impact and the Significance of Shipboard Carbon Capture and Storage for Emission Reduction in Maritime Sector
Authors: He Zhengxin , Tanhaei Mohammad , Wandy Huang Kuniadi , Halimi Ibrahim Imran , Liu Ming , Yin Xunyuan 
Published: October 2024

Abstract
This study conducts Life Cycle Assessment (LCA) to evaluate the environmental impacts of Shipboard Carbon Capture & Storage (SCCS) across its entire lifecycle. It examines the full-spectrum carbon capture and storage effects from well-to-tank and tank-to-propeller for four types of marine fuels: Very Low Sulphur Fuel Oil (VLSFO), Marine Gas Oil (MGO), Liquefied Natural Gas (LNG), and Methanol. Additionally, the study examines the Energy Efficiency Existing Ship Index (EEXI) and Carbon Intensity Indicator (CII) of a current ocean-going container ship to quantify the potential benefits of SCCS in reducing ship carbon emissions. The results indicate that the application of SCCS can significantly reduce emissions from carbon-based fuels during ship operations. In particular, ships using VLSFO as fuel can achieve 61.0% reduction in emissions by installing SCCS. However, the application of SCCS leads to 7.8% increase in fuel consumption due to additional energy requirement. In addition, this study also found while fossil methanol reduces emissions during ship combustion, its life cycle emissions are 17.5%-19.6% higher than conventional fossil fuel due to production emissions. The overall SCCS has a positive impact on emission reduction for ships and is reflected in the improvements in EEXI and CII. With the implementation of SCCS, ships fuelled by VLSFO and MGO can remain compliant with IMO Greenhouse Gases emission strategy until 2030. For ships fuelled by LNG and Methanol, compliance can remain beyond 2030.
Just in Time Port Call Optimisation: Preliminary Regulatory Compliance Evaluation and Environmental Performance Assessment
Authors: Sotiralis Panagiotis , Annetis Manolis , Ntachan Faouzi , Diamantis Christoforos , Keratsa Lina , Ventikos Nikolaos P. 
Published: October 2024

Abstract
Just in Time (JIT) arrival, as an operational measure towards shipping decarbonisation, promises increased energy savings and reduced emissions. Integrated digital systems targeting the optimisation of the port call process allow vessels to adapt their speed to avoid the “hurry-up-and-wait” syndrome, and thus, reduce their fuel consumption at a certain extend. However, there are a lot of concerns and challenges ahead for a wide adoption of such a solution, that are either related to the regulatory and standardisation frameworks, or to the realisation of the actual benefits of a JIT optimisation system. Thus, this paper attempts to shed light on some of these challenges, by focusing on the maritime regulatory framework around JIT operations and on emission reduction potential from speed adaptation. Results provide a baseline for regulatory compliance evaluation for such a system, and a preliminary environmental performance assessment from JIT arrival applied on an actual ship case. These insights and early results will be further explored within the EU-funded MISSION project towards a full appreciation of the JIT concept benefits and regulatory compliance, which will lead to its wide implementation.
Drifting vessel statistics and emergency towing cases
Authors: Einar Berg Tor , Hirdaris Spyros , Ćatipović Ivan 
Published: October 2024

Abstract
Recent climate studies forecast violent weather events with impact on the safety of maritime transportation. For example, harsh weather may result in system failures such as blackouts or loss of steering capability. Problems met when performing planned maintenance at sea may lead to adverse events if the weather cause delays or makes it impossible to complete the planned work. A drifting vessel in general is a liability for collisions with offshore structures, groundings, and total loss due to capsizing. The increasing use of ocean structures for energy production at sea (coastal and deepwater windfarms) and the transfer of fish farming structures to more exposed locations increase the probability of collisions between drifting ships and ocean structures. To mitigate risks, several incidents and their consequences have been analysed by national administrations. In some cases, these analyses have recommended the use of dedicated emergency towing resources. The willingness of the national governments to fund such resources is directly related to the time since the last major incident in their territorial waters. This paper reviews some recent cases of emergency towing operations in Norwegian waters and highlights challenges interlinked to setting up an emergency towing connection between a drifting ship and an emergency towing vessel in harsh weather.
Characterization and correlation analysis of surface topography in ball-end milling
Authors: Wang Ben , Liu Zhongxun , Sun Jingwen 
Published: October 2024

Abstract
Surface texture is the most commonly used parameter for the quantitative characterization of surface topography. It is important for the study of the topography characteristics and functional properties of surfaces. In this paper, the surface topography characteristics, surface texture parameters, and change rule of the bearing area curve when the cutting vibration of the adjacent teeth of the ball-end milling cutter is asymmetric were analyzed, and the correlation between the inflection points and the surface texture parameters of the bearing area curve were studied according to the improved correlation analysis model. This study provides essential insights into the mechanism that drives the formation of the surface topography of ball-end milling and the intrinsic characteristic laws of the surface topography.
OnionVQE optimization strategy for ground state preparation on NISQ devices
Authors: Gratsea Katerina , Selisko Johannes , Amsler Maximilian , Wever Christopher , Eckl Thomas , Samsonidze Georgy 
Published: October 2024

Abstract
The variational quantum eigensolver (VQE) is one of the most promising and widely used algorithms for exploiting the capabilities of current Noisy Intermediate-Scale Quantum (NISQ) devices. However, VQE algorithms suffer from a plethora of issues, such as barren plateaus, local minima, quantum hardware noise, and limited qubit connectivity, thus posing challenges for their successful deployment on hardware and simulators. In this work, we propose a VQE optimization strategy that builds upon recent advances in the literature, and exhibits very shallow circuit depths when applied to the specific system of interest, namely a model Hamiltonian representing a cuprate superconductor. These features make our approach a favorable candidate for generating good ground state approximations on current NISQ devices. Our findings illustrate the potential of VQE algorithmic development for leveraging the full capabilities of NISQ devices.
Editorial: Climate change is a children’s health hazard
Authors: Gould Caitlin A , Gentile Lauren E , Sbiroli Emily , Berger Martha , Philipsborn Rebecca 
Published: October 2024

Abstract
As temperatures defy heat records, it is difficult to ignore the implications of climate change for public health, including impacts on population health more specifically. In short, climate change is happening now and presents an immediate hazard to human health on a global scale. Age-related health effects are an inalienable truth; physiology is relatively universal, and so are the ways in which our bodies respond to different types and levels of exposures to environmental stressors at different lifestages. Children are uniquely vulnerable to climate change stressors not only due to their physical and developmental immaturity, but also because they generally rely on adult caretakers for the fundamentals of survival. This article is the summary piece accompanying a special issue of Environmental Research: Health. It compiles new studies on children’s vulnerability to climate change as well as studies exploring climate adaptation strategies to promote and protect child health. In this special issue, we see how these concepts are reflected repeatedly in empirical data domestically and internationally. For example, the special issue includes articles investigating linkages between climate change and health hazards such as asthma, injuries, and malnutrition. While local context is extremely important, many of the health effects may be extrapolated to other communities around the world.
Introduction
Authors: Beiser Frederick C 
Published: October 2024

Abstract
This Introduction outlines the major issues and purpose behind the recovery of early German positivism. It argues that this tradition has been terribly neglected because almost all research on positivism focuses on the Vienna circle. But German positivism predates the Vienna Circle by many decades. The early positivists were Theodor Gomperz, Eugen Duehring, Ernst Laas, Friedrich Jodl, and Ernst Mach. The Introduction places these figures in their wider historical context and explains the fundamentals of their worldview, which consists in monism, naturalism, and historicism. The positivist critique of the synthetic a priori is placed in its historical context.
Origins of Positivism in Austria and Germany
Authors: Beiser Frederick C 
Published: October 2024

Abstract
This chapter is a survey of the early reception of positivism in Austria and Germany. Section 1 is an examination of early positivism in Austria. It looks at Theodor Gomperz, who was J. S. Mill’s publicist and translator. Before Comte, Mill was understood as the chief spokesman for positivism in Austria. Section 2 examines Franz Brentano, who was the first champion of Comte’s positivism in Austria. I argue that Brentano had difficulty in squaring positivism with his Roman Catholic faith. Section 3 is a survey of the first German reviews of positivism. It considers authors like Friedrich Buchholz, Karl Twesten, and Rudolf Haym. Section 4 is a treatment of the reception of Comte among the German historians, specifically, Johann Droyson, Wilhelm Dilthey, and Ernst Bernheim.
Friedrich Jodl
Authors: Beiser Frederick C 
Published: October 2024

Abstract
Chapter 4 is an examination of the philosophy of Friedrich Jodl, one of the chief fathers of positivism before the Vienna Circle. We find in Jodl all the paradigmatic traits of early positivism: faith in the power of science to know the world; science as the spearhead for the progress of humanity; radical empiricism and skepticism toward the synthetic a priori; utilitarianism in ethics; opposition to the policies of the Roman Catholic Church. Jodl was also a father of the “scientific conception of the world,” which advocated monism, naturalism, and historicism. Jodl’s most important writing was his Geschichte der Ethik in der neueren Philosophie, which was a survey of ethics since ancient times. Jodl saw history as the progress of scientific humanism. Jodl’s early philosophy was influenced by Hume, whom he saw as a founder of early positivism.
Making Families without Wives
Authors: Basu Srimati 
Published: October 2024

Abstract
Men’s Rights Activists (MRAs) in India primarily organized around legal problems with marriage and extended family living, linking their avowed antifeminism to wives’ failures in these settings. Drawing on my ethnographic fieldwork with MRAs in eight Indian cities, this chapter provides an account of how they conceptualize gendered labour, comportment, responsibility, and resources within the familial realm, often by framing their reckonings of kinship as gender-neutral, just, and attuned to discourses of care. The prospect of wives’ entitlement to affinal family property is one of the flashpoints drawing families to join the movement. In constructing post-divorce futures, some MRAs seek ideal patrilineal kinship, while others reject marriage and establish male communities based in shared trauma. Reading these perspectives through anthropological theories that privilege marriage versus feminist and queer theories that decentre familialism, the chapter considers whether MRAs are re-routing the traffic of marriage, or benefiting from its structural advantages.
Locating Friendship in Family
Authors: Bhandari Parul 
Published: October 2024

Abstract
In the context of family relationships, a woman is typically seen as a daughter, daughter-in-law, sister, or wife but rarely as a friend. This chapter argues that in the context of elite women in Delhi, it is often friendships within family that help women navigate challenging roles and expectations. These friendships, however, have their ups and downs that are intimately tied with family dynamics. The chapter thus focuses upon elite women in their role as friends in the wider kinship and family structures. The author argues that unpacking this specific role of women helps to better understand women’s vulnerabilities, insecurities, as well as responsibilities as a family member, as well as the intricacies of maintaining honour and the politics around joint property. As such, this chapter shows how a family’s networks, status, and sense of togetherness is tied with women’s friendships within families.
Household Formation of Indian Migrant Parents in Australia
Authors: Singh Supriya 
Published: October 2024

Abstract
This chapter focuses on the relation between migration and patterns of intergenerational household formation. It re-analyses qualitative data drawn from three studies of money, migration, and the transnational family (spanning 2005–19) to focus on a subset of twenty-one parent-migrants and twenty-four older Indians who have aged in Australia. Most Indian parent-migrants live in their sons’ household in an ‘upside-down’ joint family household as they become economically dependent on their sons due to visa costs, financial gifts mainly to sons, and difficulties of employment in Australia. Older Indians who have aged in Australia, however, live in nuclear family households, even if they had earlier lived in joint family households. They prefer ‘embedded households’ that are close enough to their children to receive and give care. The chapter reveals how parent-migrants’ economic dependence because of migration changes household formation in a migrant setting.
Displaying the ‘Family’ Online
Authors: Donald Nidhin 
Published: October 2024

Abstract
This chapter focuses on the family association album, which is a critical element of the family websites of Syrian Christians of Kerala, who have been using digital platforms to school and display their collective identities. The albums on the family websites offer visual insights into the relationship between families, community, region, and the Church, and are an active archive of their collective lives, notwithstanding the actual temporal, spatial, or emotional distances between them. This chapter expands upon how these online albums operate as pedagogic tools in defining the ideal Syrian Christian family and its relationship to the larger kin network. The chapter makes its argument with the help of the author’s own illustrations of the pictures in the albums, which though ‘caricatures’ of the original photos, serve as useful tools to highlight sociological patterns in Syrian Christian visual life.
‘Seeing’ Family through Wedding Albums
Authors: Narain Suryanandini 
Published: October 2024

Abstract
This chapter examines the photographic documentation of Indian weddings, and the role of these images in formulating civil, class, and cultural identities while also offering readings of intergenerational and gendered relationships within families. In modern times, the wedding has been appended by photographic images that visually enshrine the rite of passage in the form of individual portraits, albums, and videos, in both analogue and digital formats. These images residing in institutional and personal archives gain an afterlife through retrospective viewing and circulation, reviving and affirming the cohesive role of families at each spectatorial moment. Based on material and visual readings of these images, this chapter examines the methodological potential of wedding photographs to read familial particularities in north Indian urban society.
Polyploidy linked with species richness but not diversification rates or niche breadth in Australian Pomaderreae (Rhamnaceae)
Authors: Nge Francis J , Hammer Timothy A , Vasconcelos Thais , Biffin Ed , Kellermann Jürgen , Waycott Michelle 
Published: October 2024

Abstract

Background and Aims
Polyploidy is an important evolutionary driver for plants and has been linked with higher species richness and increases in diversification rate. These correlations between ploidy and plant radiations could be the result of polyploid lineages exploiting broader niche space and novel niches due to their enhanced adaptability. The evolution of ploidy and its link to plant diversification across the Australian continent is not well understood. Here, we focus on the ploidy evolution of the Australasian Rhamnaceae tribe Pomaderreae.

Methods
We generated a densely sampled phylogeny (90 %, 215/240 species) of the tribe and used it to test for the evolution of ploidy. We obtained 30 orthologous nuclear loci per sample and dated the phylogeny using treePL. Ploidy estimates for each sequenced species were obtained using nQuire, based on phased sequence data. We used MiSSE to obtain tip diversification rates and tested for significant relationships between diversification rates and ploidy. We also assessed for relationships between ploidy level and niche breadth, using distributional records, species distributional modelling and WorldClim data.

Key Results
Polyploidy is extensive across the tribe, with almost half (45 %) of species and the majority of genera exhibiting this trait. We found a significant positive relationship between polyploidy and genus size (i.e. species richness), but a non-significant positive relationship between polyploidy and diversification rates. Polyploidy did not result in significantly wider niche space occupancy for Pomaderreae; however, polyploidy did allow transitions into novel wetter niches. Spatially, eastern Australia is the diversification hotspot for Pomaderreae in contrast to the species hotspot of south-west Western Australia.

Conclusions
The relationship between polyploidy and diversification is complex. Ancient polyploidization events likely played an important role in the diversification of species-rich genera. A lag time effect may explain the uncoupling of tip diversification rates and polyploidy of extant lineages. Further studies on other groups are required to validate these hypotheses.