bluuebunny/crossref_metadata_2025_split huggingface dataset:
Structural, dielectric, magnetic, optical, and electrical properties of double‐perovskite Sr1.5Mn0.5Fe0.5Hf1.5O6 oxides
Authors: Tang Qingkai , Zhu Xinhua 
Published: December 2023

AbstractHalf‐metallic ferromagnets (HMFs) exhibit semiconductor behavior for one spin projection and metal characteristics for the other, which have promising applications in spintronics. It is a great challengeable for HMFs to have wide spin energy gap, large saturation magnetization (MS), and high Curie temperature (TC) simultaneously. Here, we report the Sr1.5Mn0.5Fe0.5Hf1.5O6 (SMFHO) double perovskite compounds synthesized by solid‐state reaction and display a magnetic TC up to 804 K due to the strong Mn3+(↑)Fe3+(↑) spin interactions, which is the reported record in perovskite‐type HMFs so far. The measured MS value at 300 K was 4.87 μB/f.u., and it further increased up to 6.09 μB/f.u. at 2 K. The SMFHO powders exhibited butterfly‐shaped magnetoresistance (MR)–H curve at 2 K, and the MR (2 K, 7 T) value was measured as −3.86% due to the intergranular magnetic tunneling effect. Variation of the resistivity of the SMFHO ceramics versus temperature exhibits a semiconductor behavior, and the electrical transport properties of the SMFHO ceramics are well studied by Mott's range jump model, thermally activated semiconductor conductance model and small polaron jumping model, respectively. The optical absorption spectrum of the SMFHO powders demonstrates an indirect optical bandgap of 3.56 eV. Our present work demonstrates the intriguing properties of the SMFHO oxides where high TC, wide energy gap, and large MS value are preserved at the same time, which open the way to their promising applications in advanced spintronic devices at or beyond room temperature.
Recreational‐vehicle‐dwelling American nomads' experiences seeking healthcare: A qualitative field study
Authors: Tretter Ruth E. , Nies Mary A. , Omotowa Omotayo O. 
Published: December 2023

AbstractAimTo explore the experiences of recreational‐vehicle‐dwelling American nomads when seeking healthcare in the United States.DesignThis exploratory, qualitative study employed interpretive description design to maintain a disciplinary focus in nursing.MethodsTwenty‐five participants were recruited from campgrounds in eight states. Semi‐structured interviews were conducted face‐to‐face. Thematic analysis was conducted using a phronetic iterative approach.ResultsThree overarching themes described participants' experiences seeking healthcare: overwhelming logistics, don't need healthcare, and orchestrating a web of care.ConclusionRecreational‐vehicle‐dwelling nomads in the United States face additional complexity when accessing healthcare related to seeking care in unfamiliar locations and policies that prevent the portability of healthcare across state lines.ImplicationsMore research is needed to evaluate solutions to improve healthcare access for recreational‐vehicle‐dwelling nomads. Nurses and policymakers should consider healthcare practices through the lens of nomads' lifestyle mobility. The impact of policy decisions on people who are geographically mobile should be considered, and barriers to healthcare portability should be addressed.Impact

This was the first study focused on the healthcare experiences of recreational‐vehicle‐dwelling nomads in the United States.

Nomads face additional complexity and barriers to healthcare access. Some nomads developed strategies to overcome barriers, while others disengaged from healthcare.

The findings will impact researchers and nurses who study and care for nomads.

Reporting MethodThe SRQR reporting guidelines were followed.Patient or Public ContributionRecreational‐vehicle‐dwelling nomads reviewed the recruitment flyer and interview guide and provided input on recruitment methods and sites.
Recovering from physical trauma in late life, a struggle to recapture autonomy: A grounded theory study
Authors: Järbrink Hanna , Forsberg Anna , Erhag Hanna Falk , Lundälv Jörgen , Bjerså Kristofer , Engström My 
Published: December 2023

AbstractAimThe study aimed to explore the experiences of care and recovery among older patients treated for physical trauma.DesignA qualitative study with a constructivist grounded theory design.MethodsFifteen in‐depth interviews with older adults recovering from physical trauma were conducted and analysed between 2019 and 2023, in accordance with grounded theory methodology.ResultsThe findings show that for older patients who suffered physical trauma, the core category was the strive to recapture autonomy. This was achieved by means of Adaptation, Reflection and Interactions, which constitute the three main categories. Recovery involves facing and navigating various new life challenges, such as increased dependency on others, managing difficult symptoms and adapting in various ways to everyday life. The recovery process was influenced by fear, hope and the attitude towards new challenges.ConclusionOlder adults being cared for after a traumatic event have a difficult path to recovery ahead of them. Dealing with increased unwanted dependency on others was a main concern for the participants. Undertreated symptoms can lead to undesired isolation, delayed recovery and further increase unwanted dependency. On the other hand, hope, which was defined as having a positive approach to life and longing for the future, was a strong accelerating factor in the recovery process.ImpactAs a result of this study, we have established that older patients experience the initial period after trauma as difficult and that support in the initial phase can be helpful when returning home. As healthcare services are under increasing pressure because of an ageing population, this study contributes by addressing an understudied population and clarifying their concerns.Reporting MethodReporting adheres to the COREQ (COnsolidated criteria for REporting Qualitative research) Checklist.Patient or Public ContributionNo patient or public involvement.
Same places, same stories? Genomics reveals similar structuring and demographic patterns for four Pocillopora coral species in the southwestern Indian Ocean
Authors: Oury Nicolas , Mona Stefano , Magalon Hélène 
Published: December 2023

AbstractAimEfficiently protecting species requires knowing their ecological, life‐history and reproductive traits. This is particularly decisive for scleractinian corals, key components of coral reefs, which are experiencing critical declines. Yet their connectivity remains insufficiently documented. Here, we focused on four distinct species of the coral genus Pocillopora found in diverse habitats of the southwestern Indian Ocean and presenting various reproductive strategies. We aimed to understand whether these traits affect species connectivity.LocationArchipelagos and islands of the southwestern Indian Ocean.TaxonPocillopora spp.MethodsWe used target capture to collect single‐nucleotide polymorphisms (SNPs) from over a thousand colonies sampled across nine localities. From the ca. 1400 SNPs retained per species, Bayesian clustering methods, networks and demographic inferences were applied to first infer the population genetic structure and connectivity of each species, then the demographic history of each population.ResultsAll four Pocillopora species exhibited almost the same genetic structuring pattern, reflecting the sampled ecoregions (Madagascar and surrounding islands vs. Mascarene Islands). However, the genetic differentiation was stronger (FST about 10 times higher) for P. acuta, the species inhabiting more enclosed habitats, such as lagoons and shallow waters, and reproducing mainly asexually. Similarly, all populations, except those from P. acuta, showed a signature of population expansion ca. 100,000 years ago, following the penultimate glacial period.Main ConclusionsThese results indicate reduced gene flow between Madagascar and the Mascarene Islands, probably linked to currents, suggesting distinct connectivity networks that should be considered independently when setting up conservation plans. In addition, shared demographic histories reflect that populations from these species have probably met the same environmental constraints and reacted similarly, something that should be considered in light of the ongoing rapid climate change.
Particle abrasion as a pre‐bonding dentin surface treatment: A scoping review
Authors: Almeida Gabriela , Marques Joana A. , Van Meerbeek Bart , Ramos João Carlos , Falacho Rui I. 
Published: December 2023

AbstractObjectiveThis scoping review aims to assess the influence of air abrasion with aluminum oxide and bioactive glass on dentin bond strength.Materials and MethodsAn electronic search was conducted in three databases (PubMed, Cochrane Library, and Embase), on March 3rd, 2023, with previously identified MeSH Terms. A total of 1023 records were screened. Exclusion criteria include primary teeth, air abrasion of a substrate other than sound dentin, use of particles apart from aluminum oxide or bioactive glass, and studies in which bond strength was not assessed.ResultsOut of the 1023 records, title and abstract screening resulted in the exclusion of 895 and 67 studies, respectively, while full‐text analysis excluded another 25 articles. In addition, 5 records were not included, as full texts could not be obtained after requesting the authors. Two cross‐references were added. Thus, 33 studies were included in this review. It is important to emphasize the absence of standardization of air abrasion parameters. According to 63.6% of the studies, air abrasion does not influence dentin bond strength. Moreover, 30.3% suggest improving bonding performance, and 6.1% advocate a decrease.ConclusionsAir abrasion with aluminum oxide does not enhance or impair dentin bond strength. The available data on bioactive glass are limited, which hinders conclusive insights.Clinical SignificanceDentin air abrasion is a widely applied technique nowadays, with numerous clinical applications. Despite the widespread adoption of this procedure, its potential impact on bonding performance requires a thorough analysis of the existing literature.
Clinical management of vital and non‐vital discolored tooth preparation stump shades: A clinical case series
Authors: Chu Stephen J. , Mieleszko Adam J. 
Published: December 2023

AbstractObjectiveTraditional and modern‐day laboratory techniques can be used to mask vital and non‐vital discolored teeth.Clinical ConsiderationsTwo clinical case reports are presented showing different treatment approaches to differing clinical scenarios of partial coverage veneer and full coverage crown restorations, respectively.ConclusionsFeldspathic ceramics should be considered when customization of stump shade correction and equalization is required with minimum facial reduction with veneer restorations. Translucent zirconia (5 mol% Y2O3) can be used to mask metal posts and core restorations on non‐vital teeth using an opaquer material that is infused into the intaglio surface in the green state.Clinical SignificanceDifferent clinical scenarios will present to the clinician in regard to discolored stump shades where understanding what laboratory material treatment options are available that will help guide definitive restoration types and ultimately tooth preparation design.
Digital application of three‐dimensional diagnosis and treatment with a virtual articulator
Authors: Lee Kyungmin Clara , Park Jae Hyun , Kim Jong‐Cheol , Lee Sangmi , Moon Danal , Lee Gye‐Hyeong 
Published: December 2023

AbstractObjectiveThe purpose of this article was to introduce a method for the digital application of three‐dimensional (3D) diagnosis and treatment with a virtual articulator and 3D data.Clinical ConsiderationWith the use of cone‐beam computed tomography (CBCT) and intraoral and facial scans, we can create a virtual articulator and evaluate the mandibular position in maximum intercuspation and centric‐related occlusion for the patient with an unstable occlusion and temporomandibular disorders (TMD). Based on this, we treated a case using a digital mandibular position indicator (MPI) and fabricated a stabilization splint using a 3D printer. This approach eliminates the traditional impression or model mounting process and the analog face bow transfer. Furthermore, the design of the stabilization splint is accomplished using software.ConclusionsThe approach outlined in this article offers the potential for a digital diagnosis and treatment process by seamlessly integrating CBCT, intraoral scans, and facial scans with a high degree of accuracy. This may enhance precision in diagnosis and treatment planning, especially for patients with complicated TMD, in addition to facilitating effective communication with orthodontic patients who require thorough attention.Clinical SignificanceUtilizing a virtual articulator and digital MPI for the occlusal evaluation of patients with TMD and unstable occlusion makes it possible to diagnose and analyze the occlusal condition accurately. This approach also allows for precision and efficiency in treatment.
In vitro comparison of one‐step, two‐step, and three‐step polishing systems on the surface roughness and gloss of different resin composites
Authors: Lippert Vinícius Funghetto , Bresciani Eduardo , Mota Eduardo Gonçalves , Bittencourt Hélio Radke , Kramer Paulo Floriani , Spohr Ana Maria 
Published: December 2023

AbstractObjectivesThis laboratory study evaluated the effect of three polishing systems on the surface roughness and gloss of resin composites.Materials and MethodsThirty specimens (6 mm Ø × 8 mm) were fabricated from each of three resin composites: Z 350 XT (nanofill), Harmonize (nanohybrid), and Estelite Omega (supranonofill). All specimens were photopolymerized using a multi‐peak LED curing unit (VALO—Standard mode), having a exitance irradiance of approximately 1000 mW/cm2 against a polyester strip (PS). 2 mm was then removed from the irradiated end (finished) using #320 abrasive paper (F). Specimens were then randomly polished (P) using a one‐step (1S) (OneGloss), two‐step (2S) (EVE Diacomp Twist Basic CA), or 3‐step (3S) (Astropol P) system (n = 10). For PS, F, and P groups, surface roughness (Ra) was measured using a surface roughness tester, and surface gloss was measured with a glossmeter. For each specimen, the percent recovery to the PS value (%R) of surface roughness and surface gloss were calculated. Data were analyzed using two–way ANOVA, followed by Tukey's test. Surface roughness and gloss values were submitted to Pearson's correlation test (α = 0.05). All statistical testing was performed using a pre‐set alpha of 0.05.ResultsThe interaction term [resin composite × polishing system] was significant for both surface roughness (p = 0.001) and gloss (p = 0.0001). For all resin composites, the 2S and 3S systems provided a higher %R of surface roughness and gloss compared to those of the 1S system. There was a negative correlation between surface roughness and gloss, but only a few combinations showed strong correlations.ConclusionsThe 2S and 3S polishing systems provided surfaces having greater smoothness and gloss compared to the 1S system. The ability to recover surface roughness and gloss was dependent on type of resin composite filler classification.Clinical SignificanceThe 3S and 2S polishing systems were more effective in achieving PS values than was the 1S system for all tested resin composites. However, individual polishing systems performed differently depending on type of resin composite.
Disruption of a high‐pressure unit during exhumation: Example of the Cycladic Blueschist unit (Thera, Ios and Naxos islands, Greece)
Authors: Peillod Alexandre , Patten Clifford G. C. , Drüppel Kirsten , Beranoaguirre Aratz , Zeh Armin , Gudelius Dominik , Hector Simon , Majka Jarosław , Kleine-Marshall Barbara I. , Karlson Andreas , Gerdes Axel , Kolb Jochen 
Published: December 2023

AbstractReconstructing the original geometry of a high‐pressure tectonic unit is challenging but important to understand the mechanisms of mountain building. While a single nappe is subducted and exhumed, nappe‐internal thrusts may disrupt it into several subunits. The Middle‐CBU nappe of the Cycladic Blueschist Unit (Hellenide subduction orogen, Greece) shows evidence of such disruption along a Trans‐Cycladic‐Thrust (TCT), however, the timing of this thrusting is unknown. Here, we report multi‐petrological and geochronological data from the Middle‐CBU nappe from the Thera and Ios islands (Greece). Using Zr‐in‐rutile thermometry coupled with quartz‐in‐garnet elastic barometry, average P–T and phase equilibrium thermodynamic modelling, we show that garnet growth in Ios occurred during prograde metamorphism at 6.7 ± 1.4 kbar to 13.0 ± 1.6 kbar and 326 ± 20°C to 506 ± 13°C (2σ uncertainty) followed by early exhumation to 10.1 ± 0.6 kbar and 484 ± 14°C and a greenschist facies overprint at 5.7 ± 1.2 kbar and 416 ± 14°C. For Thera, we constrain peak HP conditions of 7.6 ± 1.8 kbar and 331 ± 18°C, followed by exhumation and equilibration at ~2 kbar and ~275°C using average P–T and phase equilibrium thermodynamic modelling. For Ios, Uranium‐Pb garnet geochronology provides ages of 55.7 ± 5.0 Ma (2σ uncertainties) for prograde and 40.1 ± 1.4 Ma for peak HP metamorphism. Combining our new P–T–t data from Thera and Ios islands with existing data from Naxos island, we conclude that the studied nappe segments represent remnants of a former coherent nappe. The P–T–t data define an Eocene subduction rate of 2.1 ± 1.0 km/Ma, which is distinctly slower than the current subduction rate of 40–45 km/Ma. After subduction, the exhumation of the Middle‐CBU nappe occurred during the Oligocene at different rates for different localities. The Middle‐CBU nappe of Naxos was exhumed at a rate of ~6 km/Ma, contrasting with the exhumation rate of ~3 km/Ma calculated for Ios. This result suggests that the Middle‐CBU nappe of Naxos rocks was thrust on the Ios one during the Oligocene. Using P–T–t data and assuming realistic subduction angles during the Eocene and the Oligocene, we present a 2D structural reconstruction of the Middle‐CBU nappe of these islands. This reconstruction helps to understand the mechanisms of subduction of a continental margin and its disruption during exhumation.
The inhibited response of accessory minerals during high‐temperature reworking
Authors: March Samantha , Hand Martin , Morrissey Laura , Kelsey David 
Published: December 2023

AbstractU–Pb zircon and monazite geochronology are considered to be among the most efficient and reliable methods for constraining the timing of high‐temperature (HT) metamorphic events. However, the reliability of these chronometers is coupled to their ability to participate in reactions. A case study examining the responsiveness of zircon and monazite has been conducted using granulite facies metapelitic and metamafic lithologies in the Warumpi Province, central Australia. In some instances, metapelitic granulites from this locality are polymetamorphic, with an early M1 assemblage containing orthopyroxene, cordierite, biotite, quartz, ilmenite and magnetite, and an M2 assemblage represented by garnet, sillimanite, orthopyroxene, cordierite, biotite, sapphirine, ilmenite and magnetite. M2 metamorphism is linked to HT peak conditions of 8–10 kbar and 850–915°C. Detrital and metamorphic zircon and monazite from these rocks dominantly record U–Pb dates of 1670–1610 Ma and have trace element compositions suggesting they grew prior to peak M2 garnet in the rock. Lu–Hf geochronology from M2 garnet gives ages of c. 1150 Ma. Zircon and monazite are therefore suggested to have remained largely inert during HT metamorphism. We attribute the relatively minor response of zircon and monazite during high‐temperature Mesoproterozoic metamorphism to the localized development of refractory bulk compositions at c. 1630 Ma during M1 metamorphism. This created refractory Mg–Al‐rich bulk compositions that were unable to undergo significant partial melting, despite experiencing subsequent temperatures of ~900°C at c. 1150 Ma. In contrast, metapelitic and metamafic rocks in the area that did not develop refractory bulk compositions during M1 metamorphism were able to partially melt and record c. 1150 Ma accessory mineral U–Pb ages. These results contribute to a small, but growing number of case studies investigating the systematics of the U–Pb system in zircon and monazite in polymetamorphic HT terranes and their apparent resistance to isotopic resetting. Where disequilibrium is apparent, garnet Lu–Hf geochronology can form an important tool to interrogate the significance of accessory U–Pb ages. In the Warumpi Province in central Australia, c. 1640 Ma zircon U–Pb ages had previously been interpreted to reflect the formation of HT garnet‐bearing granulites during a collisional event. Instead, the garnet‐bearing assemblages formed at c. 1150 Ma during the Mesoproterozoic, calling into question the existence of a late Palaeoproterozoic collisional system in central Australia.
The efficacy of the analgesic GlyT2 inhibitor, ORG25543, is determined by two connected allosteric sites
Authors: Chater Ryan Cantwell , Quinn Ada S. , Wilson Katie , Frangos Zachary J. , Sutton Patrick , Jayakumar Srinivasan , Cioffi Christopher L. , O'Mara Megan L. , Vandenberg Robert J. 
Published: December 2023

AbstractGlycine Transporter 2 (GlyT2) inhibitors have shown considerable potential as analgesics for the treatment of neuropathic pain but also display considerable side effects. One potential source of side effects is irreversible inhibition. In this study, we have characterized the mechanism of ORG25543 inhibition of GlyT2 by first considering three potential ligand binding sites on GlyT2—the substrate site, the vestibule allosteric site and the lipid allosteric site. The three sites were tested using a combination of molecular dynamics simulations and analysis of the inhibition of glycine transport of a series point mutated GlyT2 using electrophysiological methods. We demonstrate that the lipid allosteric site on GlyT2 is the most likely binding site for ORG25543. We also demonstrate that cholesterol derived from the cell membrane can form specific interactions with inhibitor‐bound transporters to form an allosteric network of regulatory sites. These observations will guide the future design of GlyT2 inhibitors with the objective of minimising on‐target side effects and improving the therapeutic window for the treatment of patients suffering from neuropathic pain.image
Digenic FLNA and UCHL1 variants resulting in a complex phenotype
Authors: Pernice Helena F. , O'Donnell Luke F. , Rossor Alexander M. , Laura Matilde , Record Christopher J. , Skorupinska Mariola , Blake Julian , Poh Roy , Polke James , Reilly Mary M. 
Published: December 2023

AbstractAimX‐linked variants in Filamin A (FLNA) are associated with the Ehlers‐Danlos‐syndrome‐variant form of periventricular heterotopia, and autosomal dominant variants in ubiquitin C‐terminal hydrolase L1 (UCHL1) are associated with a late‐onset spastic ataxia, peripheral neuropathy and optic atrophy. Here we present a rare case involving both a novel heterozygous whole‐gene deletion of UCHL1 and a heterozygous frameshift variant in the FLNA gene resulting in a complex phenotype.MethodsA 67‐year‐old female with a confirmed pathogenic variant in the FLNA gene, resulting in an enlarged aorta and joint pains, presented with a 4‐year history of severe sensory ataxia, upper motor neuron signs, eye movement abnormalities and severe sensory loss.ResultsNeurophysiology including Somatosensory‐evoked potentials confirmed the sensory loss as predominantly preganglionic with denervation. Genetic testing revealed a digenic cause of her complex presentation, confirming a pathogenic frameshift variant in the FLNA gene and a heterozygous loss of function deletion in the UCHL1 gene.ConclusionsTo the best of our knowledge, this is the first case with concomitant pathogenic variants in the FLNA and UCHL1 genes which explain the complex phenotype. The severe preganglionic sensory loss is also a rare finding and expands the phenotype of UCHL1 variants.