bluuebunny/crossref_metadata_2025_split huggingface dataset:
Unprecedented sea-ice minima enhances algal production deposited at the Arctic seafloor
Authors: Stevenson Mark A , Airs Ruth L , Abbott Geoffrey D 
Published: October 2023

Abstract
Sea-ice in the Arctic is declining, with 2018 a particularly low year for ice extent, driven by anomalously warm atmospheric circulation in winter 2017/18. This is consistent with a multi-decadal trend to an earlier ice-free Barents Sea as climate change rapidly warms the Arctic. Here we investigate a N–S transect in the Barents Sea, crossing the Polar Front from Atlantic waters in the south to Arctic waters in the north, focusing on the organic geochemical signature (pigments and lipids) in surface sediments sampled in summer, between the years of 2017–19. Early ice-out in summer 2018 was confirmed by satellite imagery, tracking the evolution of Arctic sea-ice extent between years. Consistent with less extensive sea-ice cover in 2018 we found increases in multiple chlorophyll and carotenoid pigments as well as fatty acids (reflecting recent phytoplankton delivery) in the northern part of our transect at the seafloor. We attribute this to nutrient and organic matter release from earlier 2018 ice-out leading to stratification, post-melt phytoplankton blooms and the deposition of organic matter to the seafloor, evidenced by pigments and lipids. Organic matter delivered to the seafloor in 2018 was reactive and highly labile, confirming its deposition in the most recent season, pointing to rapid deposition. Correlations were found during ice-free periods between satellite-derived chlorophyll a and multiple indicators of water column productivity deposited at the seafloor. We also found convincing evidence of multi-year biogeochemical change across the Polar Front, where sedimentary change is marked by chlorophyll degradation products providing evidence of grazing, indicative of a tightly coupled ecosystem close to the marginal ice zone. Overall, our results show the tight coupling of Arctic productivity with the delivery and quality of organic matter to the seafloor and how this varies across the Barents Sea. More frequent early summer sea-ice loss driven by climate warming in the Barents Sea will have consequences for the delivery of organic matter to the seafloor with impacts for benthic organisms, microbiology and the sequestration of carbon.
Simple single reactor synthesis of nickel (II)-cobalt (II) ferrite composites with biochar and their photocatalytic properties
Authors: Shabelskaya N P , Arzumanova A V , Gaidukova Yu A , Sulima S I , Vasileva E V , Yakovenko E A 
Published: October 2023

Abstract
The paper proposes a simple one-stage synthesis of ferrite/biochar composites based on oxide compounds of NixCo1-xFe2O4 (х = 0, 0.5, and 1). The obtained materials were characterised using x-ray diffraction patterns, Fourier transform infrared (FTIR) spectrometry, electron microscopy, Scherrer and Williamson-Hall methods. The high photocatalytic activity of the synthesised materials in the process of methyl orange oxidative degradation at hydrogen peroxide presence has been established. It is noted that the highest catalytic activity is exhibited by the composite material based on cobalt (II) ferrite and sunflower biochar: in their presence, it is possible to achieve 100% removal of the dye after 120 and 90 min, respectively. A possible mechanism of the dye decomposition process is discussed.
Biologic versus synthetic prosthesis for chest wall reconstruction: a matched analysis
Authors: Vanstraelen Stijn , Bains Manjit S , Dycoco Joe , Adusumilli Prasad S , Bott Matthew J , Downey Robert J , Huang James , Isbell James M , Molena Daniela , Park Bernard J , Rusch Valerie W , Sihag Smita , Allen Robert J , Cordeiro Peter G , Coriddi Michelle R , Dayan Joseph H , Disa Joseph J , Matros Evan , McCarthy Colleen M , Nelson Jonas A , Stern Carrie , Shahzad Farooq , Mehrara Babak , Jones David R , Rocco Gaetano 
Published: October 2023

Abstract

OBJECTIVES
The aim of this study was to compare postoperative outcomes between biologic and synthetic reconstructions after chest wall resection in a matched cohort.

METHODS
All patients who underwent reconstruction after full-thickness chest wall resection from 2000 to 2022 were reviewed and stratified by prosthesis type (biologic or synthetic). Biologic prostheses were of biologic origin or were fully absorbable and incorporable. Integer matching was performed to reduce confounding. The study end point was surgical site complications requiring reoperation. Multivariable analysis was performed to identify associated risk factors.

RESULTS
In total, 438 patients underwent prosthetic chest wall reconstruction (unmatched: biologic, n = 49; synthetic, n = 389; matched: biologic, n = 46; synthetic, n = 46). After matching, the median (interquartile range) defect size was 83 cm2 (50–142) for the biologic group and 90 cm2 (48–146) for the synthetic group (P = 0.97). Myocutaneous flaps were used in 33% of biologic reconstructions (n = 15) and 33% of synthetic reconstructions (n = 15) in the matched cohort (P = 0.99). The incidence of surgical site complications requiring reoperation was not significantly different between biologic and synthetic reconstructions in the unmatched (3 [6%] vs 29 [7%]; P = 0.99) and matched (2 [4%] vs 4 [9%]; P = 0.68) cohorts. On the multivariable analysis, operative time [adjusted odds ratio (aOR) = 1.01, 95% confidence interval (CI), 1.00–1.01; P = 0.006] and operative blood loss (aOR = 1.00, 95% CI, 1.00–1.00]; P = 0.012) were associated with higher rates of surgical site complications requiring reoperation; microvascular free flaps (aOR = 0.03, 95% CI, 0.00–0.42; P = 0.024) were associated with lower rates.

CONCLUSIONS
The incidence of surgical site complications requiring reoperation was not significantly different between biologic and synthetic prostheses in chest wall reconstructions.
The genome of Salmacisia buchloëana, the parasitic puppet master pulling strings of sexual phenotypic monstrosities in buffalograss
Authors: Benson Christopher W , Sheltra Matthew R , Huff David R 
Published: October 2023

Abstract
To complete its parasitic lifecycle, Salmacisia buchloëana, a biotrophic fungus, manipulates reproductive organ development, meristem determinacy, and resource allocation in its dioecious plant host, buffalograss (Bouteloua dactyloides; Poaceae). To gain insight into S. buchloëana's ability to manipulate its host, we sequenced and assembled the 20.1 Mb genome of S. buchloëana into 22 chromosome-level pseudomolecules. Phylogenetic analysis suggests that S. buchloëana is nested within the genus Tilletia and diverged from Tilletia caries and Tilletia walkeri ∼40 MYA. We find that S. buchloëana contains a novel chromosome arm with no syntenic relationship to other publicly available Tilletia genomes, and that genes on the novel arm are upregulated upon infection, suggesting that this unique chromosomal segment may have played a critical role in S. buchloëana's evolution and host specificity. Salmacisia buchloëana has one of the largest fractions of serine peptidases (1.53% of the proteome) and one of the highest GC contents (62.3%) in all classified fungi. Analysis of codon base composition indicated that GC content is controlled more by selective constraints than directional mutation, and that S. buchloëana has a unique bias for the serine codon UCG. Finally, we identify 3 inteins within the S. buchloëana genome, 2 of which are located in a gene often used in fungal taxonomy. The genomic and transcriptomic resources generated here will aid plant pathologists and breeders by providing insight into the extracellular components contributing to sex determination in dioecious grasses.
De Novo Whole Genome Assemblies for Two Southern African Dwarf Chameleons (Bradypodion, Chamaeleonidae)
Authors: Taft Jody M , Tolley Krystal A , Alexander Graham J , Geneva Anthony J 
Published: October 2023

Abstract
A complete and high-quality reference genome has become a fundamental tool for the study of functional, comparative, and evolutionary genomics. However, efforts to produce high-quality genomes for African taxa are lagging given the limited access to sufficient resources and technologies. The southern African dwarf chameleons (Bradypodion) are a relatively young lineage, with a large body of evidence demonstrating the highly adaptive capacity of these lizards. Bradypodion are known for their habitat specialization, with evidence of convergent phenotypes across the phylogeny. However, the underlying genetic architecture of these phenotypes remains unknown for Bradypodion, and without adequate genomic resources, many evolutionary questions cannot be answered. We present de novo assembled whole genomes for Bradypodion pumilum and Bradypodion ventrale, using Pacific Biosciences long-read sequencing data. BUSCO analysis revealed that 96.36% of single copy orthologs were present in the B. pumilum genome and 94% in B. ventrale. Moreover, these genomes boast scaffold N50 of 389.6 and 374.9 Mb, respectively. Based on a whole genome alignment of both Bradypodion genomes, B. pumilum is highly syntenic with B. ventrale. Furthermore, Bradypodion is also syntenic with Anolis lizards, despite the divergence between these lineages estimated to be nearly 170 Ma. Coalescent analysis of the genomic data also suggests that historical changes in effective population size for these species correspond to notable shifts in the southern African environment. These high-quality Bradypodion genome assemblies will support future research on the evolutionary history, diversification, and genetic underpinnings of adaptation in Bradypodion.
Mechanisms of lineage specification in Caenorhabditis elegans
Authors: Liu Jun , Murray John Isaac 
Published: October 2023

Abstract
The studies of cell fate and lineage specification are fundamental to our understanding of the development of multicellular organisms. Caenorhabditis elegans has been one of the premiere systems for studying cell fate specification mechanisms at single cell resolution, due to its transparent nature, the invariant cell lineage, and fixed number of somatic cells. We discuss the general themes and regulatory mechanisms that have emerged from these studies, with a focus on somatic lineages and cell fates. We next review the key factors and pathways that regulate the specification of discrete cells and lineages during embryogenesis and postembryonic development; we focus on transcription factors and include numerous lineage diagrams that depict the expression of key factors that specify embryonic founder cells and postembryonic blast cells, and the diverse somatic cell fates they generate. We end by discussing some future perspectives in cell and lineage specification.
How digital transformation affects the cost of equity capital: the role of information disclosure quality and stock liquidity
Authors: Ren Lijun , Liu Jiajia , Hao Qianyi 
Published: October 2023

Abstract
To achieve high-quality development, a critical question needs to be addressed: can enterprise digital transformation effectively alleviate enterprise financing problems by reducing the cost of equity capital? This study uses the text mining to analyze the financial statement from Chinese companies listed on Shanghai and Shenzhen A-share markets between 2011 and 2021, in order to define the digital transformation. Further, this study empirically tests the influencing mechanisms of digital transformation on the cost of equity capital, considering the perspectives of information disclosure quality and stock liquidity. The conclusions are as follows: (i) enterprise digital transformation can significantly reduce the cost of equity capital, and under the control of other variables, the cost of equity financing will be reduced by 8.8% for every 1% increase in digital transformation; (ii) digital transformation not only leads to a decrease in the cost of equity capital through the two independent mediation channels, improving information disclosure and accelerating stock liquidity, but also reduces the cost of equity capital through the chain mediation channel from information disclosure quality to stock liquidity; (iii) heterogeneity analysis finds that the effect of digital information on the cost of equity capital is more pronounced in larger, non-state-owned, non-high-tech and eastern enterprises. This study enriches the research of the influence of digital transformation on external financing, and plays an important role in the promotion of enterprise digital transformation and the formulation of targeted policies.
High-performance lithium-ion battery equalization strategy for energy storage system
Authors: Li Junxian , Huang Cunqiang , Zhang Xiangcheng , Tian Xu , An Juan 
Published: October 2023

Abstract
In pursuit of low-carbon life, renewable energy is widely used, accelerating the development of lithium-ion batteries. Battery equalization is a crucial technology for lithium-ion batteries, and a simple and reliable voltage-equalization control strategy is widely used because the battery terminal voltage is very easy to obtain. But when the battery voltage is used to determine whether the battery needs to end equalization, it often does not reflect the state of charge well, resulting in battery management system misjudgment, which makes it unable to achieve a better equalization effect. In this paper, we propose a high-performance equalization control strategy based on the equalization data of the general equalization strategy, which turns on the equalization again after the equalization is completed and uses the equalization time instead of the battery voltage as the indicator. In this paper, we analyse and test this principle in detail. The difference between the final voltage of the equalized battery and the target voltage is only 4 versus 3 mV, which is an extreme advantage compared with the error of 18 versus 24 mV of the general equalization strategy, and it adds almost no workload, which makes it a good prospect for application.
Facilitators and barriers to the implementation of surgical safety checklist: an integrative review
Authors: Lim Petrina Jia Hui , Chen Lin , Siow Serene , Lim Siew Hoon 
Published: October 2023

Abstract
Surgical procedures pose an immense risk to patients, which can lead to various complications and adverse events. In order to safeguard patients’ safety, the World Health Organization initiated the implementation of the Surgical Safety Checklist (SSC) in operating theatres worldwide. The aim of this integrative review was to summarize and evaluate the use and implementation of SSC, focusing on facilitators and barriers at the individual, professional, and organizational levels. This review followed closely the integrative review method by Whittemore and Knafl. An English literature search was conducted across three electronic databases (PubMed, CINAHL, and EMBASE) and other hand search references. Keywords search included: ‘acute care’, ‘surgical’, ‘adult patients’, ‘pre-operative’, ‘intra-operative’, and ‘post-operative’. A total of 816 articles were screened by two reviewers independently and all articles that met the pre-specified inclusion criteria were retained. Data extracted from the articles were categorized, compared, and further analysed. A total of 34 articles were included with the majority being observational studies in developed and European countries. Checklists had been adopted in various surgical specialities. Findings indicated that safety checklists improved team cohesion and communication, resulting in enhanced patient safety. This resulted in high compliance rates as healthcare workers expressed the benefits of SSC to facilitate safety within operating theatres. Barriers included manpower limitations, hierarchical culture, lack of staff involvement and training, staff resistance, and appropriateness of checklist. Common facilitators and barriers at individual, professional, and organizational levels have been identified. Staff training and education, conducive workplace culture, timely audits, and appropriate checklist adaptations are crucial components for a successful implementation of the SSC. Methods have also been introduced to counter barriers of SSC.
What Is Christendom to Us? Making Better Sense of Christianity in Global Politics
Authors: Heathershaw John 
Published: October 2023

Abstract
What is Christendom in international relations? We argue that Christendom does not equate to a long-lost historical empire but an enduring imaginary of a political order where government secures the church and the church ministers to government. Such imaginaries have taken a diverse range of historical and geographical forms, which have barely been explored in International Relations (IR). They may be state-centric or decentered. As intellectual historians of the discipline have demonstrated, international relations was founded on a Christendom ontology and theology, and then rapidly forgot that fact. One major feature of this forgetting is a narrow historical conception of Christendom—its equation with Latin Christendom—in contrast with the wealth of scholarship in the humanities, which has revealed various conceptual forms and discursive practices of Christendom from at least the fourth century CE to the present. The effect of this narrowness has been to confirm IR’s historical Eurocentrism and prevent it from exploring the international politics of Eurasian, Eastern Orthodox forms of Christendom, and signs of new imaginaries of Christendom emerging in the Global South. But such neo-Christendoms—which imagine government as re-centered on the church—raise the possibility of the emergence of modern variations of the legitimized violence associated with Latin Christendom. Alternative theologies of post-Christendom—imagining the church as politically active but decentered from government—indicate that such an imaginary is contested not just beyond but within Christian theology. The paper provides a new definition of Christendom and re-evaluation of its afterlives for the study of religion and theology in international relations.
Electronic connectivity between hospital pairs: impact on emergency department-related utilization
Authors: Adler-Milstein Julia , Linden Ariel , Hsia Renee Y , Everson Jordan 
Published: October 2023

Abstract

Objective
To use more precise measures of which hospitals are electronically connected to determine whether health information exchange (HIE) is associated with lower emergency department (ED)-related utilization.

Materials and Methods
We combined 2018 Medicare fee-for-service claims to identify beneficiaries with 2 ED encounters within 30 days, and Definitive Healthcare and AHA IT Supplement data to identify hospital participation in HIE networks (HIOs and EHR vendor networks). We determined whether the 2 encounters for the same beneficiary occurred at: the same organization, different organizations connected by HIE, or different organizations not connected by HIE. Outcomes were: (1) whether any repeat imaging occurred during the second ED visit; (2) for beneficiaries with a treat-and-release ED visit followed by a second ED visit, whether they were admitted to the hospital after the second visit; (3) for beneficiaries discharged from the hospital followed by an ED visit, whether they were admitted to the hospital.

Results
In adjusted mixed effects models, for all outcomes, beneficiaries returning to the same organization had significantly lower utilization compared to those going to different organizations. Comparing only those going to different organizations, HIE was not associated with lower levels of repeat imaging. HIE was associated with lower likelihood of hospital admission following a treat-and-release ED visit (1.83 percentage points [−3.44 to −0.21]) but higher likelihood of admission following hospital discharge (2.78 percentage points [0.48-5.08]).

Discussion
Lower utilization for beneficiaries returning to the same organization could reflect better access to information or other factors such as aligned incentives.

Conclusion
HIE is not consistently associated with utilization outcomes reflecting more coordinated care in the ED setting.
High Caregiver Adverse Childhood Experiences Are Associated With Pediatric Influenza and COVID-19 Vaccination Uptake
Authors: Day Melissa E , Sucharew Heidi , Burkhardt Mary Carol , Reyner Allison , Giles Destiney , Beck Andrew F , Schlaudecker Elizabeth P , Klein Melissa 
Published: October 2023

Abstract

Background
Factors surrounding vaccine uptake are complex. Although anxiety, which could influence vaccination decisions, has been associated with adverse childhood experiences (ACEs), little is known about links between caregiver ACEs and pediatric vaccine uptake. We evaluated associations between caregivers’ ACEs and decisions to vaccinate their children with influenza and coronavirus disease (COVID-19) vaccines.

Methods
A cross-sectional study of caregivers of patients ≥6 months at one pediatric primary care center (PPCC) was performed. Caregivers completed a 19-question survey examining caregiver ACEs, influenza vaccine acceptance and beliefs, and intention to vaccinate their child with the COVID-19 vaccine. Demographic characteristics, social risks (eg, housing and food insecurity), and vaccination data for children present with each caregiver were extracted from the electronic health record (EHR). Statistical analyses included χ2 tests for categorical variables and t-tests for continuous variables.

Results
A total of 240 caregivers participated, representing 283 children (mean age of 5.9 years, 47% male). Twenty-four percent (n = 58) had high ACEs (≥4). Of those with high ACEs, 55% accepted pediatric influenza vaccination compared with 38% with low ACEs (P = .02). Those with high ACEs had more positive attitudes toward influenza vaccine safety and efficacy (P ≤ .02). Those with high, compared with low, ACEs were also more likely to accept COVID-19 vaccination (38% vs 24%; P = .04).

Conclusions
Pediatric influenza vaccination rates and intention to vaccinate children against COVID-19 differed between caregivers with high and low ACEs: those with more ACEs were more likely to vaccinate. Further studies assessing the role of caregiver ACEs on vaccine decision-making are warranted.
Giant concha bullosa presented as left nasal mass: a case report and literature review
Authors: Al-Kholaiwi Feras M , Al-Khatabi Reema A , Al-Shehri Ghada A , Al-Ghonaim Yazeed A 
Published: October 2023

Abstract
Concha bullosa (CB) is not considered to be a disease, but rather a variation of the paranasal sinus. A CB is defined as the presence of an air cell within the turbinate (pneumatization). The main function of CB is to maintain upper respiratory humidity, regulate thermoregulation, and regulate airflow and filtration. It is common for CB to occur in the middle turbinate, while superior and inferior locations appear to be rare. The patient in this case report was presented mainly with nasal obstruction. During examination, a large mass was found in the left nasal cavity, causing a deviated nasal septum to the right. For this patient, surgery was the last resort. Either perioperative or postoperative complications were observed, and the quality of life of patients improved after surgery.