bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of Obstetric Communication on Decision-to-Delivery Time
Authors: Crimmins Sarah , Baumer Sarah , Theodoru Andrea , Driscoll Colleen H. 
Published: May 2022

Objective In obstetric emergencies, care coordination is critical in achieving a “decision-to-delivery” time of 30 minutes. Reliable communication is essential to optimize coordinated care of mother and baby. Clinical mobility (CM) platforms have been shown to improve communication during medical emergencies; however, their impact on improving decision-to-delivery times has not been shown. This study aimed to determine the impact of a new CM platform on decision-to-delivery time.
Study Design A multidisciplinary team designed a CM platform that employs a wall-mounted panel paired with mobile technology to alert all relevant clinical staff. This new platform uses in-room preprogrammed messages that alert predetermined responders matching the emergency. For example, the “STAT section” button summons doctors (obstetrics, anesthesiology, and neonatology), obstetric nurses, and newborn resuscitation staff via smartphones. Impact of this platform was assessed with process and outcome data: cord artery pH, 5-minute Apgar's score; and decision for cesarean section to time of: skin incision, uterine incision, and delivery. This pre- and postimplementation study (October–September 2018 vs. January–December 2019) centered on the opening of our new Obstetric Care Unit. Data were analyzed with Chi-square and Mann–Whitney U-test.
Results Emergent cesarean delivery was performed in 172 women pre- and 124 postimplementation of the new CM platform. In postimplementation, we observed a 7.4-minute reduction in time from decision-to-delivery (26 pre- vs. 18.6 minutes postimplementation, p = 0.001). Delivery within 30 minutes improved by 15.2% (p = 0.018). Times to skin and uterine incision were also significantly reduced. The two groups had similar neonatal outcomes: birth weight, Apgar's score at 5 minutes, and cord artery pH did not differ, but the study was underpowered to compare these outcomes.
Conclusion This new CM platform significantly reduced decision-to-delivery time, in turn improving compliance with the “30-minute rule.” All relevant personnel were contacted specifically, while avoiding overhead paging and other unnecessary messages.
Key Points
Impact of seawater temperature on the Pacific oyster (
Authors: Pathirana Erandi , Whittington Richard J. , Hick Paul M. 
Published: May 2022

Context Intertidal estuarine environments expose oysters to wide temperature variations. This can shift their microbiome composition towards pathogen-dominated communities. Understanding the impact of temperature on the microbiome will facilitate oyster health management. Aims The present study was conducted to (1) assess the Pacific oyster microbiome at different temperatures (21°C, 22°C, 26°C and diurnal fluctuation between 22°C and 26°C) and (2) investigate microbiome changes in response to exposure to the pathogen Ostreid herpesvirus-1 (OsHV-1) at different temperatures. Methods Pacific oysters (15 months of age; n = 480) were acclimated to different temperatures in laboratory aquaria. Samples were obtained before and after acclimation and after OsHV-1 exposure for quantification of OsHV-1, total bacteria and Vibrio, by quantitative PCR. Bacterial 16S rRNA gene (V1–V3) sequences were used to characterise the gill bacterial community. Key results The alpha diversity (number of observed amplicon sequence variants) and total number of bacteria associated with the gills of oysters did not change with acclimation to different water temperature profiles, but there was variation in beta diversity. The highest mortality after OsHV-1 exposure occurred at 26°C and these, together with oysters at 22/26°C, had a higher concentration of OsHV-1 DNA compared with to the ones at the lower constant temperatures (P < 0.05). The total bacterial quantity increased after the OsHV-1 challenge in oysters at 22/26°C. The alpha diversity of microbiota increased after the OsHV-1 challenge in oysters at 21°C and 22/26°C. The beta diversity changed both after acclimation and OsHV-1 challenge. The highest abundance of Vibrio and higher OsHV-1 loads were seen in OsHV-1-challenged oysters at 26°C (P < 0.05). Conclusions The gill microbiome altered with seawater temperature and OsHV-1 challenge. Higher mortality following OsHV-1 exposure was associated with a higher water temperature and greater abundance of Vibrio spp. arising from the microbiome. Implications Higher seawater temperature can be considered a key risk factor influencing oyster health by altering the microbiome, increasing susceptibility to OsHV-1 and increasing the Vibrio fraction in the oyster microbiome.
Mineral–organic associations are enriched in both microbial metabolites and plant residues in a subtropical soil profile under no-tillage and legume cover cropping
Authors: Veloso M. G. , Angers D. A. , Chantigny M. H. , Bayer C. 
Published: May 2022

Context Knowledge of the impacts of no-tillage and cover cropping on carbon accumulation and stabilisation in highly weathered agricultural soils of subtropical regions is scant. We hypothesised that implementation of no-tillage coupled with high-quality legume residues in highly weathered agricultural soils would result in high carbon accumulation rates, mainly as microbe- and plant-derived materials in fine mineral–organic complexes. Aims and methods We sampled soil profiles down to 100 cm in a long-term field experiment and used density and particle size fractionation in combination with carbohydrate analyses to compare the effect of conventional tillage vs no-tillage, combined or not with legume cover cropping, and combined or not with mineral nitrogen fertilisation. Key results Both no-tillage and legume cover crops favoured the accumulation and enrichment in plant-derived carbohydrates in the surface soil layer, due to the accumulation of plant residues. The ratio of microbe- to plant-derived carbohydrates increased with soil depth indicating that the soil carbon (C) was more microbially processed than at the surface. Conservation management systems also increased soil C at depth and this was most visible in the clay fraction. The additional clay-size C accumulating at depth under conservation treatments was of both microbial and plant origin. Conclusions Our results support the hypothesis that mineral-associated C is composed of both plant and microbial residues and is positively influenced by conservation management practices. Implications Our results demonstrate that no-till and legume cover cropping are efficient practises to foster C accumulation and stabilisation in heavily weathered agricultural soil profiles in a subtropical climate.
Rhymed Talk and Ideophones: Recovering Extinct Discourse Practices from Russian Realist Fiction
Authors: Maslov Boris , Nikitina Tatiana 
Published: May 2022

AbstractThis article presents a case for approaching works of nineteenth-century realist fiction as proto-ethnographic documents that contain unique evidence for reconstructing extinct discourse practices. We focus on two previously undescribed phenomena: improvised rhyming in sparring dialogue, and the use of ideophones in oral storytelling.
Polyphony and the Carnivalesque in Kyiv
Authors: Gemziak Łukasz 
Published: May 2022

AbstractThis article analyzes the significance of the place in Kyiv where the statue of Lenin stood before it was toppled during the Euromaidan protests. Following the monument’s demolition, many works of art have been successively exhibited on this site. Drawing on Bakhtin’s concept of the carnival sense of the world, the article suggests that these sculptures, installations, and performances have demonstrated the permanent carnivalesque potential of the place. Moreover, as different representations of Ukrainian memory and identity, these works of art have created a polyphony of voices about the Ukrainian past, present, and future. The research explains the significance of this phenomenon for the Ukrainian society.
“Am I Your Coequal?!”: Memes and Changing Meanings in the Digital Subversion of Ghanaian Hierarchies
Authors: Flamenbaum Rachel Nora 
Published: May 2022

AbstractCapturing the zeitgeist of youthful challenges to the status quo in Ghana, a video of an anonymous young person challenging an older politician with a derisive call of “Tweaa!” went viral in 2014. Reentextualizations of the encounter were soon circulating online in the form of memes, songs, and hashtags and offline in joking exchanges everywhere from vegetable markets to parliament. This article traces the many ironic reembeddings of the tweaa clip across these contexts, as young people used tweaa to subvert and interrogate Ghana’s rigid social hierarchies—ultimately producing an enduring shift in the vocabulary of protest in Ghana. Tweaa, once a casual interjection of disapproval, is now explicitly seen as iconic of the disenfranchised challenging those in power: a verb meaning “to protest inept authority.” This case study of memetic circulation suggests that memes not only discursively produce publics but can effect seismic semiotic shifts in everyday language.
Structural and electronic behavior of yttrium doped zirconolite ceramic; a potential waste form for burning minor actinides
Authors: Kaur Rajveer , Gupta M , Kulriya P K , Ghumman S S 
Published: May 2022

Abstract
In the study of nuclear materials, zirconolite ceramic doped with yttrium, as a surrogate for minor actinides, is chosen to study the effects of doping on structural and electronic response which are crucial parameters in the determination of the stability and durability of materials under radiation effects. The samples Ca0.9Zr0.9Y0.2Ti2O7 have been synthesized using conventional solid-state route of two-step sintering process. X-ray diffraction and Raman spectroscopy studies are performed on samples to examine the effect of temperatures on formation of phase. The scanning electron microscopy analysis revealed formation of porous micro-structure at 1200 °C while dense-packed morphology at sintering temperature of 1300 °C. Both XRD and Raman spectroscopy on samples sintered at 1300 °C reveal almost single phase (2 M zirconolite) formation with 20% molar concentration of yttrium thus indicating high loading capacity of zirconolite. The formation of 2M-zirconolite phase is also confirmed from Rietveld refinement of the spectra. Analysis of refinement of spectra of sample sintered at 1300 °C indicates substitution of Y3+ ions against both Ca and Zr sites with similar occupancy of ∼10%, while the altered chemical environment is found to affect the bond length. XPS confirms the presence of Y3+ in the structure and illustrates further that oxidation states of all the elements remain unaltered. Finally, the measurements and analysis show that zirconolite can retain its structural integrity by incorporation of 20% molar concentration of yttrium on Ca and Zr sites and can be a promising waste form for burning the minor actinides in advance accelerators.
The Atacama Cosmology Telescope: measurement and analysis of 1D beams for DR4
Authors: Lungu Marius , Storer Emilie R. , Hasselfield Matthew , Duivenvoorden Adriaan J. , Calabrese Erminia , Chesmore Grace E. , Choi Steve K. , Dunkley Jo , Dünner Rolando , Gallardo Patricio A. , Golec Joseph E. , Guan Yilun , Hill J. Colin , Hincks Adam D. , Hubmayr Johannes , Madhavacheril Mathew S. , Mallaby-Kay Maya , McMahon Jeff , Moodley Kavilan , Naess Sigurd , Nati Federico , Niemack Michael D. , Page Lyman A. , Partridge Bruce , Puddu Roberto , Schillaci Alessandro , Sifón Cristóbal , Staggs Suzanne , Sunder Dhaneshwar D. , Wollack Edward J. , Xu Zhilei 
Published: May 2022

Abstract
We describe the measurement and treatment of the telescope beams for the Atacama Cosmology Telescope's fourth data release, DR4. Observations of Uranus are used to measure the central portion (<12') of the beams to roughly -40 dB of the peak. Such planet maps in intensity are used to construct azimuthally averaged beam profiles, which are fit with a physically motivated model before being transformed into Fourier space. We investigate and quantify a number of percent-level corrections to the beams, all of which are important for precision cosmology. Uranus maps in polarization are used to measure the temperature-to-polarization leakage in the main part of the beams, which is ≲ 1% (2.5%) at 150 GHz (98 GHz). The beams also have polarized sidelobes, which are measured with observations of Saturn and deprojected from the ACT time-ordered data. Notable changes relative to past ACT beam analyses include an improved subtraction of the atmospheric effects from Uranus calibration maps, incorporation of a scattering term in the beam profile model, and refinements to the beam model uncertainties and the main temperature-to-polarization leakage terms in the ACT power spectrum analysis.
The pseudoscalar meson and baryon octet interaction with strangeness S = −2 in the unitary coupled-channel approximation
Authors: Sun Bao-Xi , Liu Xin-Yu 
Published: May 2022

Abstract
The interaction of the pseudoscalar meson and the baryon octet with strangeness

S
=
−
2

and isospin

I
=
1
/
2

is investigated by solving the Bethe–Salpeter equation in the infinite and finite volume respectively. It is found that there is a resonance state generated dynamically, which owns a mass of about 1550 MeV and a large decay width of 120–200 MeV. This resonance state couples strongly to the π

Ξ

channel. Therefore, it might not correspond to the

Ξ
(
1620
)

particle announced by Belle collaboration. At the same time, this problem is studied in the finite volume, and an energy level at 1570 MeV is obtained, which is between the

π
Ξ

and

K
¯

Λ

thresholds and independent of the cubic box size.
Transition radiation in the THz range generated in the relativistic laser—tape target interaction
Authors: Gorlova D , Tsymbalov I , Volkov R , Savel’ev A 
Published: May 2022

Abstract
Generation of terahertz (THz) radiation in the interaction of laser pulse with intensity ∼5 × 1018 W cm−2 with a controlled preplasma, created by an additional laser pulse interacting with a 16 μm film target, was studied. The mechanism of generation of THz radiation in the frequency range 1–5 THz was found to be coherent transition radiation of accelerated electrons transversing the rear plasma-vacuum boundary. Angular distribution of the THz radiation changes with the delay between main pulse and prepulse due to different regimes of electron acceleration, while THz radiation spectrum reflects the spatial size of the preplasma cloud and may be used for diagnostics purposes. THz radiation energy reaches ∼0.1 mJ in 1–5 THz spectral range, corresponding to 0.2% conversion efficiency, and increases linearly with laser pulse energy.
Adoption of ICRU report 90 recommendations in the Canadian Co-60 air-kerma primary standard
Authors: Mainegra-Hing E 
Published: May 2022

AbstractThe Canadian air-kerma primary standard for60Co beams is updated according to ICRU report 90 (ICRU-90) recommendations. The effect of these recommendations and a more detailed chamber model on the primary standard is investigated. Dosimetric quantities and corrections required for the realization of air kerma are calculated using the EGSnrc Monte Carlo (MC) simulation system. The validity of Spencer–Attix (SA) cavity theory as function of Δ, the secondary particle production threshold energy, is investigated to assess the accuracy of its current selection criterion. Although individual changes in some correction factors are statistically non-negligible, the overall effect amounts to only a 0.04% increase of the standard. The meanrestrictedmass electronic stopping power ratio graphite to air,S¯Δ,g,adecreases from the previous value of 1.0010 to a value of 0.9949. If this value is used with the recommendedWairvalue of 33.97 eV, the effect on the standard is a reduction of 0.613%. When the recommendedWairS¯g,avalue of 33.72 eV is used instead, the change results in a 0.835% reduction inKair. Using SA cavity theory to obtainKairwith a Δ value of 20 keV, corresponding to the cavity’s mean chord length, reproduces a direct MC calculation at the 0.03% level. Type B uncertainties due to uncertainty in the photon and electron cross sections for the largest correctionsKwallandKcompare estimated to be 0.01% and 0.10%, respectively. No statistically significant effect on the standard is observed due to changes in the correction factors. Fano tests and comparison to single scattering calculations demonstrate EGSnrc’s electron transport algorithm accuracy to be within 0.03% relative to its own cross sections. The latter also validates the criterion for selecting Δ based on the average chord length of the chamber’s cavity. A 0.2% difference in therestrictedstopping power ratio obtained in this work and the value resulting from ICRU-90 recommendations has the potential for affecting standards relying on the absolute value ofWair, thus further investigation is granted. The current update results in a 0.8% decrease of the Canadian60Co air-kerma primary standard with a reduced uncertainty of 0.2%. This change is in excellent agreement with the reported change to the BIPM60Co air-kerma standard.
Bridging the gap between patient-specific and patient-independent seizure prediction via knowledge distillation
Authors: Wu Di , Yang Jie , Sawan Mohamad 
Published: May 2022

AbstractObjective.Deep neural networks (DNNs) have shown unprecedented success in various brain-machine interface applications such as epileptic seizure prediction. However, existing approaches typically train models in a patient-specific fashion due to the highly personalized characteristics of epileptic signals. Therefore, only a limited number of labeled recordings from each subject can be used for training. As a consequence, current DNN based methods demonstrate poor generalization ability to some extent due to the insufficiency of training data. On the other hand, patient-independent models attempt to utilize more patient data to train a universal model for all patients by pooling patient data together. Despite different techniques applied, results show that patient-independent models perform worse than patient-specific models due to high individual variation across patients. A substantial gap thus exists between patient-specific and patient-independent models.Approach. In this paper, we propose a novel training scheme based on knowledge distillation which makes use of a large amount of data from multiple subjects. It first distills informative features from signals of all available subjects with a pre-trained general model. A patient-specific model can then be obtained with the help of distilled knowledge and additional personalized data.Main results. Four state-of-the-art seizure prediction methods are trained on the Children’s Hospital of Boston-MIT sEEG database with our proposed scheme. The resulting accuracy, sensitivity, and false prediction rate show that our proposed training scheme consistently improves the prediction performance of state-of-the-art methods by a large margin.Significance.The proposed training scheme significantly improves the performance of patient-specific seizure predictors and bridges the gap between patient-specific and patient-independent predictors.
Unwrapped two-point functions on high-dimensional tori
Authors: Deng Youjin , Garoni Timothy M , Grimm Jens , Zhou Zongzheng 
Published: May 2022

Abstract
We study unwrapped two-point functions for the Ising model, the self-avoiding walk (SAW) and a random-length loop-erased random walk on high-dimensional lattices with periodic boundary conditions. While the standard two-point functions of these models have been observed to display an anomalous plateau behaviour, the unwrapped two-point functions are shown to display standard mean-field behaviour. Moreover, we argue that the asymptotic behaviour of these unwrapped two-point functions on the torus can be understood in terms of the standard two-point function of a random-length random walk model on

Z

d

. A precise description is derived for the asymptotic behaviour of the latter. Finally, we consider a natural notion of the Ising walk length, and show numerically that the Ising and SAW walk lengths on high-dimensional tori show the same universal behaviour known for the SAW walk length on the complete graph.
Ecosystems are showing symptoms of resilience loss
Authors: Rocha Juan C 
Published: May 2022

Abstract
Ecosystems around the world are at risk of critical transitions due to increasing anthropogenic pressures and climate change. Yet it is unclear where the risks are higher or where in the world ecosystems are more vulnerable. Here I measure resilience of primary productivity proxies for marine and terrestrial ecosystems globally. Up to 29% of global terrestrial ecosystem, and 24% marine ones, show symptoms of resilience loss. These symptoms are shown in all biomes, but Arctic tundra and boreal forest are the most affected, as well as the Indian Ocean and Eastern Pacific. Although the results are likely an underestimation, they enable the identification of risk areas as well as the potential synchrony of some transitions, helping prioritize areas for management interventions and conservation.
Does the Antarctic Oscillation modulate tropical cyclone rapid intensification over the western North Pacific?
Authors: Song Jinjie , Klotzbach Philip J , Dai Yifei , Duan Yihong 
Published: May 2022

Abstract
This study investigates the modulation of tropical cyclone (TCs) rapid intensification (RI) over the western North Pacific by the Antarctic Oscillation. There is a significant inverse relationship between basinwide RI number during July–November from 1982 to 2020 and the simultaneous Antarctic Oscillation index. During positive Antarctic Oscillation years, RI occurrence is significantly suppressed over the main RI region (10°–20° N and 125°–150° E) and slightly enhanced over the South China Sea. By contrast, during negative Antarctic Oscillation years, RI is significantly enhanced over the main RI region and slightly suppressed over the South China Sea. The Antarctic Oscillation influences western North Pacific RI occurrence mainly through modulation of the large-scale dynamic environment. During positive Antarctic Oscillation years, increases in 850–200 hPa vertical wind shear and decreases in both low-level vorticity and upper-level divergence all suppress RI occurrence over the main RI region, while thermodynamic variables (e.g. TC heat potential, maximum potential intensity and low-to-middle level relative humidity) show mostly weak changes. These changes in dynamic factors can be linked to a low-level anomalous western North Pacific anticyclone triggered by the positive phase of the Antarctic Oscillation and a low-level anomalous western North Pacific cyclone generated by a negative phase of the Antarctic Oscillation.