bluuebunny/crossref_metadata_2025_split huggingface dataset:
Health Care Disparities and the Emergency Management of Postpartum Patients with Cardiovascular Complaints
Authors: Stafford Irene A. , Viertel Valentina G. , Wilken Lindsay A. , Olmsted Kaleigh E. , Porter Mayrose R. , Armstrong Julia M. , GO Gabriella , Roberts Aaron W. 
Published: May 2023

Objective This study aimed to determine health care disparities in evaluation and admission among underserved racial and ethnic minority groups presenting with cardiovascular complaints during the first postpartum year according to patient and provider demographics.
Study Design A retrospective cohort study was performed on all postpartum patients who sought emergency care between February 2012 and October 2020 in a large urban care center in Southeastern Texas. Patient information was collected according to International Classification of Diseases 10th Revision codes and individual chart analysis. Race, ethnicity, and gender information were self-reported for both patients on hospital enrollment forms and emergency department (ED) providers on their employment records. Statistical analysis was performed with logistic regression and Pearson's chi-square test.
Results Of 47,976 patients who delivered during the study period, 41,237 (85.9%) were black, Hispanic, or Latina and 490 (1.1%) presented to the ED with cardiovascular complaints. Baseline characteristics were similar between groups; however, Hispanic or Latina patients were more likely to have had gestational diabetes mellitus during the index pregnancy (6.2 vs. 18.3%). There was no difference in hospital admission between groups (17.9% black vs. 16.2% Latina or Hispanic patients). There was no difference in the hospital admission rate by provider race or ethnicity overall (p = 0.82). There was no difference in the hospital admission rate when a patient was evaluated by a provider of a different race or ethnicity (relative risk [RR] = 1.08, CI: 0.6–1.97). There was no difference in the rate of admission according to the self-reported gender of the provider (RR = 0.97, CI: 0.66–1.44).
Conclusion This study illustrates that disparities did not exist in the management of racial and ethnic minority groups who presented to the ED with cardiovascular complaints during the first postpartum year. Patient–provider discordance in race or gender was not a significant source of bias or discrimination during the evaluation and treatment of these patients.
Key Points
Synthesis and Epoxidation of Flav-3-enes as Methodology for the Biomimetic Preparation of Flavan-3,4-diols
Authors: Bezuidenhoudt Barend C. B. , van Jaarsveldt Jeanette , Marais Charlene , van Tonder Johannes H. 
Published: May 2023

AbstractSince flavonoids exhibit a remarkable number of pharmacological properties like antioxidant, anti-inflammatory, and antimicrobial activities, a great deal of work has been done on the medicinal and therapeutical application of these compounds. Despite the central role of flavan-3,4-diols in the synthesis of many other classes of flavonoids, only a few methods for the preparation of these compounds have been reported. In this paper, the results on the preparation of methoxy-substituted flavan-3,4-diols, displaying natural substitution patterns, from readily available starting materials through a 3-step process is disclosed. It is also indicated that the 4-aryl-substituted analogues can become available from the corresponding flav-3-enes if an aromatic nucleophile is added during the dimethyldioxirane (DMDO) epoxidation process.
Differential Diagnosis of Metatarsalgia
Authors: Afonso P. Diana , Britto Sabrina Veras , Spritzer Charles E. , Martins e Souza Patrícia 
Published: May 2023

AbstractLesser (or central) metatarsalgia is defined as pain in the forefoot under or around the lesser metatarsals and their respective metatarsophalangeal joints. Two common causes of central metatarsalgia are Morton's neuroma (MN) and plantar plate (PP) injury. Because both clinical and imaging features overlap, establishing the correct differential diagnosis may be challenging. Imaging has a pivotal role in the detection and characterization of metatarsalgia. Different radiologic modalities are available to assess the common causes of forefoot pain, so the strengths and weakness of these imaging tools should be kept in mind. It is crucial to be aware of the pitfalls that can be encountered in daily clinical practice when dealing with these disorders. This review describes two main causes of lesser metatarsalgia, MN and PP injury, and their differential diagnoses.
Incorporating structural topic modeling into short text analysis
Authors: Wang Po-Ya Angela , Hsieh Shu-Kai 
Published: May 2023

Abstract
The past few decades have seen the rapid development of topic modeling. So far, research has been more concerned with determining the ideal number of topics or meaningful topic clustering words than with applying topic modeling techniques to evaluate linguistic theories. This study proposes the Structural Topic Model (STM)-led framework to facilitate the interpretation of topic modeling results and standardize text analysis. STM encompasses various model training mechanisms, thereby requiring systematic designs to properly combine language studies. “Structural” in STM refers to the inclusion of metadata structure. Unlike the corpus-based keyness approach, STM can capture contextual cues and meta-information for the interpretation of topical results. Besides, STM can make cross-corpora comparisons via topical contrast, a challenging task for corpus-driven related models such as the Biterm Topic Model (BTM). Stylistic variations in song lyrics are taken as an illustration to show how to use the suggested framework to delve into the linguistic theory proposed by Pennebaker (2013). The topical model and iterable model in the proposed paradigm can clarify how pronouns affect style distinction. We believe the proposed STM-led framework can shed light on text analysis by conducting a reproducible cross-corpora comparison on short texts.
Polar answers
Authors: Pavlidou Theodossia-Soula , Alvanoudi Angeliki 
Published: May 2023

Abstract
The purpose of this paper is to examine the forms and functions of answers to proposals for joint action,
implemented through polar interrogatives, in Greek telephone calls. Our analysis indicates a distinct functional distribution of
three types of accepting answers to such proposals. Particle-type answers do ‘simple’ acceptance of the proposal, i.e. they only
display the respondent’s willingness to take on the proposed action and nothing else, while repetition-type answers display the
speaker’s epistemic/deontic stance towards additional aspects of the proposal. With a third type of responses, speakers accept the proposal in
a mitigated manner. Our findings align with Enfield et al.’s (2019) conclusion that
particles serve as pragmatically unmarked polar answers. They do not, however, evince the prevalence of this type of answer to
proposals to the same extent as to epistemically oriented polar interrogatives.
Silicon spin qubits from laboratory to industry
Authors: De Michielis Marco , Ferraro Elena , Prati Enrico , Hutin Louis , Bertrand Benoit , Charbon Edoardo , Ibberson David J , Fernando Gonzalez-Zalba Miguel 
Published: May 2023

Abstract
Quantum computation (QC) is one of the most challenging quantum technologies that promise to revolutionize data computation in the long-term by outperforming the classical supercomputers in specific applications. Errors will hamper this quantum revolution if not sufficiently limited and corrected by quantum error correction codes thus avoiding quantum algorithm failures. In particular millions of highly-coherent qubits arranged in a two-dimensional array are required to implement the surface code, one of the most promising codes for quantum error correction. One of the most attractive technologies to fabricate such large number of almost identical high-quality devices is the well known metal-oxide-semiconductor technology. Silicon quantum processor manufacturing can leverage the technological developments achieved in the last 50 years in the semiconductor industry. Here, we review modeling, fabrication aspects and experimental figures of merit of qubits defined in the spin degree of freedom of charge carriers confined in quantum dots and donors in silicon devices along with classical electronics innovations for qubit control and readout. Furthermore, we discuss potential applications of the technology and finally we review the role of start-ups and companies in the silicon-based QC era.
The µ–τ reflection symmetry of Majorana neutrinos
*
Authors: Xing Zhi-zhong 
Published: May 2023

Abstract
The observed pattern of lepton flavor mixing and CP violation strongly indicates the possible existence of a simple flavor symmetry in the neutrino sector—the effective Majorana neutrino mass term keeps invariant when the three left-handed neutrino fields transform as

ν

e

L

→
(

ν

e

L

)
c

,

ν

μ

L

→
(

ν

τ

L

)
c

and

ν

τ

L

→
(

ν

μ

L

)
c

. A direct application of such a µ–τ reflection symmetry to the canonical seesaw mechanism can help a lot to constrain the flavor textures of active and sterile Majorana neutrinos. The present article is intended to summarize the latest progress made in exploring the properties of this minimal flavor symmetry, its translational and rotational extensions, its soft breaking effects via radiative corrections from a superhigh energy scale to the electroweak scale, and its various phenomenological implications.
Cyclic behavior and seismic control performance of SMA friction damper
Authors: Han Meng , Chang Zhaoqun , Xing Guohua , Peng Pingze , Liu Boquan 
Published: May 2023

Abstract
Using superelastic shape memory alloy (SMA) bars and non-asbestos organic friction material, this study developed an innovative self-centering friction damper (SCFD). This hybrid passive control device consists of the self-centering device using SMA bars and the friction energy dissipation device which can provide excellent self-centering ability and energy-absorbing ability to meet the requirements of civil engineering applications. To explore the feasibility and hysteretic properties of the SCFD, experimental tests under cyclic loading were conducted. According to the experimental results, the proposed SCFD exhibited a stable and repeatable flag-shaped hysteretic response, which can achieve the recovered displacement of 76.07% and dissipated energy of 6.04 kJ at 42 mm. The finite element model of the SCFD using ABAQUS software was established and validated by experimental results. And a series of numerical simulations with different parameters were performed, which enables a more in-depth interpretation of the SCFD. Additionally, a system-level nonlinear time-history analysis was performed on a three-story steel frame equipped with and without SCFDs. The dynamic analysis results indicated that the SCFDs could effectively reduce structural damage and enhance post-earthquake recoverability under rare earthquakes.
A method to evaluate the inductance properties of REBCO excitation process based on magnetic energy density and T–A formula
Authors: Hong Wenzhe , Hu Libiao , Wu Yongsheng , Miao Pengcheng , Liu Huajun , Liu Fang , Yi Shi 
Published: May 2023

Abstract
The REBCO high-temperature superconducting tape has a pronounced electromagnetic anisotropy. The critical current is strongly dependent on the value of the magnetic field, the magnetic field direction, the temperature, and the stress, and has a significant nonlinear relationship. It is also important to note that screening current effects in superconducting magnets at elevated temperatures lead to a non-uniform distribution of current densities, and thus the inductance of superconducting magnets at high-temperatures is calculated differently from that of normal magnets. This is essential for the design of superconducting energy storage magnets at high-temperatures, especially for the accurate evaluation of the inductance values. To further analyze the variation of the inductance value due to the REBCO screening current, the T–A formulation combined with the magnetic energy density is considered to evaluate the energy storage and inductance values during the excitation of the superconducting coil. The effect of excitation rate, operating temperature, and excitation current on the inductance value is analyzed based on the design of a 5 T insulating superconducting coil. The mathematical relation between excitation voltage, contact resistance, and inductance in the magnetic excitation experiment is presented, and the accuracy of the calculated method is verified by comparison with simulation results.
First-principles studies of charged defect states in intrinsic ferromagnetic semiconductors: the case of monolayer CrI3
Authors: Zhu Guo-Jun , Xu Yong-Gang , Fang Yi-Bin , Yang Ji-Hui , Gong Xin-Gao 
Published: May 2023

Abstract
Defects play significant roles in spin-current-related physical processes in intrinsic ferromagnetic semiconductors (FMSs), which are great promise for spintronics applications. However, current defect calculation methods cannot be used to investigate charged defects in FMSs due to the spin polarization of both the charged defect states and ionized carriers, which is not well treated in current defect calculation methods. In order to solve this problem, we propose a spin-distinguishable charge correction (SDCC) method that uses spin-polarized band edge charge density instead of spin-unpolarized uniform background charge density as the compensating charge for charged defects. We apply our method to study the defect properties of CrI3 monolayer and find it can be doped n-type under the Cr-rich growth condition but difficult to be doped p-type. The SDCC method proposed here is generally suitable for all FMSs, which will be useful for the studies of defect properties of magnetic semiconductors.
Control of the vortex lattice formation in coupled atom-molecular Bose–Einstein condensate in a double well potential: role of atom-molecule coupling, trap rotation frequency and detuning parameter
Authors: Gupta Moumita , Dastidar Krishna Rai 
Published: May 2023

Abstract
We study the vortex formation in coupled atomic and molecular condensates in a rotating double well trap by numerically solving the coupled Gross–Pitaevskii like equations. Starting with the atomic condensate in the double well potential we considered two-photon Raman photo-association for coherent conversion of atoms to molecules. It is shown that the competition between atom-molecule coupling strength and repulsive atom-molecule interaction controls the spacings between atomic and molecular vortices and the rotation frequency of the trap is the key player for controlling the number of visible atomic and molecular vortices. Whereas the Raman detuning controls the spacing between atomic and molecular vortices as well as the number of atomic and molecular vortices in the trap. We have shown by considering the molecular lattices the distance between two molecular vortices can be controlled by varying the Raman detuning. In addition we have found that the Feynman rule relating the total number of vortices and average angular momentum both for atoms and molecules can be satisfied by considering the atomic and molecular vortices those are hidden in density distribution and seen as singularities in phase distribution of the coupled system except for the lattice structure where molecular vortices are overlapped with each other. It is found that although the number of visible/core vortices in atomic and molecular vortex lattices depends significantly on the system parameters the number of atomic and molecular hidden vortices remains constant in most of the cases.
On the role of antecedent meteorological conditions on flash drought initialization in Europe
Authors: Shah Jignesh , Kumar Rohini , Samaniego Luis , Markonis Yannis , Hanel Martin , Attinger Sabine , Hari Vittal , Rakovec Oldrich 
Published: May 2023

Abstract
The fast depletion of soil moisture in the top soil layers characterizes flash drought events. Due to their rapid onset and intensification, flash droughts severely impact ecosystem productivity. Thus understanding their initialization mechanisms is essential for improving the skill of drought forecasting systems. Here, we examine the role of antecedent meteorological conditions that lead to flash droughts across Europe over the last 70 years (1950–2019) using ERA5 dataset. We find two major flash-drought types based on a sequence of development of antecedent hydro-meteorological conditions. The first type is characterized by a joint occurrence of two mechanisms, a decline of precipitation in conjunction with an increase of the evaporative demand, both occurring before the onset of a flash drought event. The second type, on the contrary, is characterized by high precipitation preceding the event’s start, followed by a sudden precipitation deficit combined with an increase in evaporative demand at the onset of the drought. Both drought types showed increased occurrence and higher spatial coverage over the last 70 years; the second drought type has increased at a much faster rate compared to the first one specifically, over Central Europe and the Mediterranean region. Overall our study highlights the differences between the two types of flash droughts, related to varying antecedent meteorological conditions, and their changes under recent climate warming.
West-warming East-cooling trend over Antarctica reversed since early 21st century driven by large-scale circulation variation
Authors: Xin Meijiao , Clem Kyle R , Turner John , Stammerjohn Sharon E , Zhu Jiang , Cai Wenju , Li Xichen 
Published: May 2023

Abstract
Antarctic climate changes prior to 2000 were characterized by a strong zonally asymmetric pattern. Over 90% of the land ice mass loss occurred around a limited area in West Antarctica, accompanied by a rapid surface warming rate about three times the global mean. In contrast, surface warming and glacier mass loss around East Antarctica are not significant, until the decades since 2000 when several individual stations show that the temperature trends might have reversed. The asymmetric climate changes between East- and West-Antarctica are largely attributable to the inter-decadal variabilities over the Pacific and Atlantic Oceans through tropical–polar teleconnections, leaving open the question of whether the post-2000 phase shift of the lower-latitude decadal variability causes a flip of the asymmetric Antarctic changes. Here, by synthesizing 26 in-situ observations and 6 reanalysis datasets using a statistical method and integrating the results with a series of climate model experiments, we find that the West-warming, East-cooling trend over Antarctica has systematically reversed in austral spring since the early 21st century, largely due to the atmospheric circulation anomaly over the Antarctic Peninsula–Weddell Sea region, which is associated to the teleconnection with Pacific and atmospheric internal variability. This reversal of the temperature seesaw suggests that substantial decadal-scale fluctuations of the Antarctic climate system exist, including for sea-ice and land-ice systems, superimposed on and modifying longer term changes.
The Role of Farmers in Overcoming Scarcity and Increasing Cooking Oil Prices in Malang Regency, Indonesia
Authors: Prasetyo Hendro , Utomo Medea Rahmadhani , Kusuma Bayu Adi , Fauzi Nida Asasah , Mutiarani Bella Amelia , Zein Sterrivan Ramadhan , Faiz Muhammad , Linda Prihardani 
Published: May 2023

Abstract
The high price of cooking oil in Indonesia has been in the spotlight from the fourth quarter of 2021 until the beginning of the first quarter of 2022. The scarcity and very high spike in oil prices of course attract the attention of almost all countries in the world. world, both oil-producing (exporting) countries and consuming (importing) countries. From these problems, farmers need to play an important role in overcoming the scarcity and rising prices of cooking oil through the use of coconut oil. This research activity aims to 1) explore the creativity and innovation of farmers to make coconut-processed products, 2) find out farmers’ understanding of VCO processing that can provide economic and health impacts- 3) Describe the role of farmers in making Virgin Coconut Oil (VCO) using technology and technology. local potential in overcoming scarcity and rising cooking oil prices. The manufacture of virgin coconut oil has many advantages. It does not require expensive costs because raw materials are easily obtained at low prices. Processing is simple and not too complicated. Nutrients are maintained, especially the fatty acids in the oil. When compared to cooking oil (copra coconut oil), pure coconut oil has better quality.
A preliminary study on determining factors of sustainable tourism based on residents’ attitudes towards biosphere reserve areas
Authors: Aprilia Anisa , Aini Edlyn Khurotul , Kumalasari Kartika Putri , Fajar Yusri 
Published: May 2023

Abstract
The rapid influx of tourists to the biosphere reserve is feared to cause major environmental problems. In the meantime, one of the most important parts of the sustainable growth of tourism in biosphere reserves is the acceptance and tolerance of tourists shown by residents. This study attempts to assess and validate the local residents’ attitude towards the sustainable tourism development in Alas Purwo National Park’s Biosphere Reserve Area using a sustainable tourism attitude scale. This park is located in Banyuwangi, East Java, Indonesia, a popular tourist destination designated as a biosphere reserve area by UNESCO. This survey has been completed by a total of 142 local residents in the surrounding area of this biosphere reserve. Through exploratory factor analysis, the dimension of sustainable tourism was determined. The sustainable tourism attitude scale is a valid and reliable for examining residents’ attitudes toward of sustainable tourism development. It also demonstrates that locals have an optimistic outlook on the growth of sustainable tourism, even in places like Indonesia where it is still growing. By understanding how locals feel about sustainable tourism development, policymakers, developers, and tourist managers will be able to establish strategies and manage tourism development effectively, particularly in biosphere reserves.
Response to the IP rice 400 policy in terms of planting seasons and farm income (a case study in the Downstream part of Grompol Watershed, Masaran District, Sragen Regency)
Authors: Irawan E , Nurhidayati I , Sutrisno J , Khairiyakh R , Ulfa A N , Agustono  , Fajarningsih R U 
Published: May 2023

Abstract
The government has launched a policy to ensure the sovereign availability of national rice. One breakthrough is the rice cropping pattern with a cropping index (IP) of 400. It means rice fields are used for planting and harvesting four times a year. This cropping pattern can be made in several potential areas, including the Grompol Hilir Watershed, Masaran District, Sragen Regency. This study aims to (1) determine the pattern of rice planting- and (2) analyze the comparative income of rice farming. Respondents in this study were obtained by purposive sampling in four villages in the Grompol Hilir watershed area. In-depth interview was used to know the rice cropping pattern, and income analysis was used to see the farmer’s income. The results showed that 46 harvested rice 3 times and 14 farmers 4 times a year. The results also show that in one growing season, the average income of IP300 farmers is Rp14,148,195, where this value is higher than farmers who apply IP400, which is Rp9,036,693. Therefore, it can be concluded that IP400 can be implemented with more support from the government regarding facilities and infrastructure.