bluuebunny/crossref_metadata_2025_split huggingface dataset:
Self-organized patterning on azo molecular glass film via optical near-field effect
Authors: Wang Zenan , Huang Hao , Wang Xiaogong 
Published: May 2023

AbstractSelf-organized surface patterning has attracted great research interest ranging from scientific understanding to various applications. Here, we report a unique patterning behavior observed on an azo molecular glass film with polystyrene microspheres on the surface upon irradiation with a circularly polarized laser beam. Photoinduced submicron hillocks are found to organize into concentric arrays around isolated polystyrene spheres, while more complex patterns are observed around two or more spheres close to each other. The irradiation first creates surface relief rings encircling the spheres and then the rings split into hillocks arranged in circular arrays with increasing exposure time. Pattern formation is shown to be controlled by synergy from the optical near-field of polystyrene spheres with the spontaneous hillock formation characteristics of the molecular glass film upon light irradiation. This work is beneficial to deepening the understanding of light–matter interactions and is expected to be applied in different areas.
Sex-disaggregated effectiveness data reporting in COVID-19 vaccine research: a systematic review
Authors: Sulis Giorgia , Kim Ji Yoon , Rodrigue Valérie , Gore Geneviève , Peebles Alexandra , Ulrich Angela K. , Horn Miranda , Basta Nicole E. 
Published: May 2023

Abstract
Background
Sex and gender are believed to influence vaccine response. Yet, the relationship between sex and gender and COVID-19 vaccine efficacy is poorly understood and remains under-investigated.

Methods
We conducted a systematic review to determine whether and to what extent post-approval COVID-19 vaccine effectiveness (VE) studies report sex-disaggregated VE data.
We searched four publication and pre-publication databases and additional grey literature sources for relevant published/preprint studies released between 1 January 2020 and 1 October 2021 (i.e., pre-Omicron era). We included observational studies providing VE estimates for one or more licensed/approved COVID-19 vaccines and including both males and females. Two reviewers independently assessed study eligibility, extracted data, and assessed risk-of-bias through a modified version of Cochrane’s ROBINS-I tool. A qualitative data synthesis was performed.

Results
Here we show that, among 240 eligible publications, 68 (28.3%) do not report the sex distribution among participants. Only 21/240 (8.8%) studies provide sex-disaggregated VE estimates, and high between-study heterogeneity regarding design, target population, outcomes, and vaccine type/timing prevent the assessment of sex in determining COVID-19 VE across studies.

Conclusions
Our findings indicate that few COVID-19 vaccine research publications account for sex. Improved adherence to recommended reporting guidelines will ensure that the evidence generated can be used to better understand the relationship between sex and gender and VE.
Noncovalent Interactions in Crystal Structures: Quantifying Cooperativity in Hydrogen and Halogen Bonds
Authors: Grabowski Sławomir J. 
Published: May 2023

The cooperativity effects for hydrogen and halogen bonded systems are analyzed; examples of clusters where this phenomenon occurs are presented – the systems analyzed theoretically are compared with examples of the corresponding arrangements occurring in crystal structures. This chapter relates to early studies on this phenomenon and it presents different meanings of the term cooperativity. Distinct indices and measures of the cooperativity are presented in order to quantify this phenomenon.
Different classifications of the cooperativity are presented; for example, σ- cooperativity and π-cooperativity are described. For the latter case one can distinguish between intermolecular and intramolecular π-cooperativity. It is justified that for numerous kinds of interactions, the hydrogen and halogen bonds, as well as other interactions classified as σ-hole bonds, the same indices describing the cooperativity may be applied. It is shown that in crystal structures where cooperativity effects are mostly related to the symmetry relations, the situation is very complex since various phenomena related to the term cooperativity may act simultaneously.
Predictors of Ball Velocity in the Sitting Volleyball Serve: A Causal Analysis
Authors: Cavedon Valentina , Sandri Marco , Golia Silva , Brugnoli Chiara , Bolčević Filip , Zancanaro Carlo , Milanese Chiara 
Published: May 2023

AbstractThis study explored the performance of the Sitting Volleyball serve by investigating the causal factors associated with ball velocity. Thirty-seven athletes underwent anthropometry and strength assessment and performed ten successful maximal effort serves. Ball velocity was measured using a sports radar gun. The hip, shoulder, elbow and wrist angles at the instant of ball impact as well as the height of ball impact were estimated through two-dimensional motion analysis. The causal relationships between variables were described through a linear Structural Equation Model and a Directed Acyclic Graph. Results showed that a smaller hip angle determines a greater shoulder angle, which in turn causes a greater elbow angle. A more open elbow angle together with a greater vertical reach allowed for a greater height of ball impact. Finally, increased height of ball impact along with greater abdominal strength are beneficial for higher ball velocity. These results underlined that the Sitting Volleyball serve is a multifactorial stroke involving anthropometric, technical and strength factors and suggest that athletes should improve their abdominal strength and master the technique necessary to perform the serve with the shoulder and the elbow joints fully extended in order to produce the greatest possible impact on the ball.
Copper-Catalyzed Coupling of N-Phenoxyacetamides and 2H-Azirines for Synthesis of α-Amino Oxime Ethers
Authors: Zhu Yue-Lu , Chen Jiao , Yan Jie , Xu Xiu-Xuan , Sun Zong-Yu 
Published: May 2023

AbstractCopper-catalyzed coupling reaction involving N-phenoxyacetamides and 2H-azirines is described, in which N–O and C–N bonds are broken and restructured. This protocol provides an efficient strategy for the highly regioselective synthesis of racemic α-amino oxime ethers. In addition, this strategy can be used to modify natural products and is gram-scale compatible.
COVID-19 responses restricted abilities and aspirations for mobility and migration: insights from diverse cities in four continents
Authors: Jolivet Dominique , Fransen Sonja , Adger William Neil , Fábos Anita , Abu Mumuni , Allen Charlotte , Boyd Emily , Carr Edward R. , Codjoe Samuel Nii Ardey , Gavonel Maria Franco , Gemenne François , Rocky Mahmudol Hasan , Lantz Jozefina , Maculule Domingos , de Campos Ricardo Safra , Siddiqui Tasneem , Zickgraf Caroline 
Published: May 2023

AbstractResearch on the impacts of COVID-19 on mobility has focused primarily on the increased health vulnerabilities of involuntary migrant and displaced populations. But virtually all migration flows have been truncated and altered because of reduced economic and mobility opportunities of migrants. Here we use a well-established framework of migration decision-making, whereby individual decisions combine the aspiration and ability to migrate, to explain how public responses to the COVID-19 pandemic alter migration patterns among urban populations across the world. The principal responses to COVID-19 pandemic that affected migration are: 1) through travel restrictions and border closures, 2) by affecting abilities to move through economic and other means, and 3) by affecting aspirations to move. Using in-depth qualitative data collected in six cities in four continents (Accra, Amsterdam, Brussels, Dhaka, Maputo, and Worcester), we explore how populations with diverse levels of education and occupations were affected in their current and future mobility decisions. We use data from interviews with sample of internal and international migrants and non-migrants during the 2020 COVID-19 pandemic outbreak to identify the mechanisms through which the pandemic affected their mobility decisions. The results show common processes across the different geographical contexts: individuals perceived increased risks associated with further migration, which affected their migration aspirations, and had reduced abilities to migrate, all of which affected their migration decision-making processes. The results also reveal stark differences in perceived and experienced migration decision-making across precarious migrant groups compared to high-skilled and formally employed international migrants in all settings. This precarity of place is particularly evident in low-income marginalised populations.
Structural, electronic, and transport properties of Janus XMoSiP2 (
X=
S, Se, Te) monolayers: a first-principles study
Authors: Hiep Nguyen T , Nguyen Cuong Q , Poklonski N A , Duque C A , Phuc Huynh V , Lu D V , Hieu Nguyen N 
Published: May 2023

Abstract
Based on density functional theory calculation, herein we propose XMoSiP2 (

X
=

S, Se, Te) monolayers for new two-dimensional (2D) Janus materials. Their crystal structures with dynamical, mechanical, and thermal stabilities, electronic and transport properties are systematically investigated. The results reveal that all three XMoSiP2 monolayers exhibit isotropic elastic properties with high Young’s modulus and negative cohesive energy values, as well as the elastic constants follow the Born-Huang’s criteria, demonstrating their mechanical stability and suggesting the high ability for the experimental synthesis of these materials. From the Perdew–Burke–Ernzerhof functional, the SMoSiP2 is observed as a semiconductor with an indirect bandgap of 1.01 eV, while the SeMoSiP2 and TeMoSiP2 monolayers are observed as direct semiconductors with the bandgap energy of 1.09 and 1.12 eV, respectively. Notably, the bandgap energy of the materials is changed significantly by applying the biaxial strain, and the transition between direct and indirect semiconductors is observed. For the transport ability of the materials, the carrier mobilities are found to be anisotropic for both electron and hole in our studied materials. These findings further highlight the extraordinary properties of the 2D Janus XMoSiP2 materials and their promise for application in electronic devices.
Large-range high-speed dynamic-mode atomic force microscope imaging: adaptive tapping towards minimal force
Authors: Chen Jiarong , Zou Qingze 
Published: May 2023

Abstract
In this paper, a software-hardware integrated approach is proposed for high-speed, large-range tapping mode imaging of atomic force microscope (AFM). High speed AFM imaging is needed in various applications, particularly in interrogating dynamic processes at nanoscale such as polymer crystallization process. Achieving high speed in tapping-mode AFM imaging is challenging as the probe-sample interaction during the imaging process is highly nonlinear, making the tapping motion highly sensitive to the probe sample spacing, and thereby, difficult to maintain at high speed. Increasing the speed via hardware bandwidth enlargement, however, leads to a substantially reduction of the imaging area. Contrarily, the imaging speed can be increased without loss of the scan size through control (algorithm)-based approach. For example, the recently-developed adaptive multiloop mode (AMLM) technique has demonstrated its efficacy in increasing the tapping-mode imaging speed without loss of scan size. Further improvement, however, has been limited by the hardware bandwidth and the online signal processing speed and computation complexity involved. Thus, in this paper, the AMLM technique is further enhanced to optimize the probe tapping regulation, and integrated with a field programmable gate array platform to further increase the imaging speed without loss of quality and scan range. Experimental implementation of the proposed approach demonstrates that high-quality imaging can be achieved at a high-speed scanning rate of 100 Hz and higher, and over a large imaging area of over 20 μm.
3D printing polyurethane acrylate(PUA) based elastomer and its mechanical behavior
Authors: Li Huan , Liang Lei , Zeng Wenxiang , Deng Yuancheng , Ge Nengpeng , Shan Wubin 
Published: May 2023

Abstract
Liquid-crystal display(LCD) 3D printing, also known as light during 3D printing or photopolymer 3D printing, is a type of additive manufacturing technology that uses light-sensitive resin to create three-dimensional objects. This technology has gained popularity in recent years owing to its ability to create high-resolution, detailed objects with a wide range of materials, including shape-memory polymers, toughness resins, and elastomers. Elastomers are a type of polymer material that has the ability to stretch and deform under an applied force, but return to their original shape when the force is removed. The superior deformation recovery rate contributes to elastomer use in various industries, including automotive, aerospace, medical, and consumer goods. In this study, a UV-curable polyurethane acrylate(PUA) elastomer with an elongation of 100%–200% was developed. Using LCD 3D printing, we were able to fabricate Triply periodic minimal surface(TPMS) lattice structures with this elastomer investigated the compressive behavior of TPMS structures with different compressive ratios of 20%–50%. Our results demonstrate that this approach enables the creation of flexible energy-absorbing structures under cyclic loading. This study highlights the potential of LCD 3D printing technology for the production of elastomeric materials with tunable mechanical properties.
Diode pumped compact single frequency cw ruby laser
Authors: Luhs W , Wellegehausen B 
Published: May 2023

Abstract
Investigations on 405 nm diode-pumped cw ruby lasers operated in less than 3 mm plane-parallel resonators are reported. With 2.5 mm long ruby crystals TEM00 emission with output powers up to 40 mW are achieved. With an uncoated thin etalon of 0.13 mm thickness, single frequency emission on both ruby lines R1 and R2 is possible. With the piezoelectric shifting of one resonator mirror and corresponding tilting of the etalon, single frequency tuning of up to 400 GHz has been achieved. Details of the laser system are presented, and potential applications will be discussed.
NRRS: a re-tracing strategy to refine neuron reconstruction
Authors: Li Yiwei , Jiang Shengdian , Ding Liya , Liu Lijuan 
Published: May 2023

Abstract

It is crucial to develop accurate and reliable algorithms for fine reconstruction of neural morphology from whole-brain image datasets. Even though the involvement of human experts in the reconstruction process can help to ensure the quality and accuracy of the reconstructions, automated refinement algorithms are necessary to handle substantial deviations problems of reconstructed branches and bifurcation points from the large-scale and high-dimensional nature of the image data. Our proposed Neuron Reconstruction Refinement Strategy (NRRS) is a novel approach to address the problem of deviation errors in neuron morphology reconstruction. Our method partitions the reconstruction into fixed-size segments and resolves the deviation problems by re-tracing in two steps. We also validate the performance of our method using a synthetic dataset. Our results show that NRRS outperforms existing solutions and can handle most deviation errors. We apply our method to SEU-ALLEN/BICCN dataset containing 1741 complete neuron reconstructions and achieve remarkable improvements in the accuracy of the neuron skeleton representation, the task of radius estimation and axonal bouton detection. Our findings demonstrate the critical role of NRRS in refining neuron morphology reconstruction.

Availability and implementation
The proposed refinement method is implemented as a Vaa3D plugin and the source code are available under the repository of vaa3d_tools/hackathon/Levy/refinement. The original fMOST images of mouse brains can be found at the BICCN’s Brain Image Library (BIL) (https://www.brainimagelibrary.org). The synthetic dataset is hosted on GitHub (https://github.com/Vaa3D/vaa3d_tools/tree/master/hackathon/Levy/refinement).

Supplementary information
Supplementary data are available at Bioinformatics Advances online.
Development and Validation of Stability Indicating RP-HPLC Method for the Estimation of Glycopyrrolate and Neostigmine in Bulk and Injection
Authors: Agarwal Babita , Jagdale Sachin , Kadam Prasad , Sakpal Pramod , Nalawade Santaji , Maske Shivraj , Dale Pooja 
Published: May 2023

Abstract
A stability indicating RP-HPLC method is suggested for determination of Glycopyrrolate-Neostigmine (GLY/NEO) in bulk drugs and injection formulation. GLY/NEO were eluted from a Chromolith High Resolution RP-18e (100 mm×4.6 mm) with buffer solution (pH 3.0) as mobile phase A and a mixture of HPLC grade acetonitrile and water mixture (90:10) as mobile phase B. The gradient was optimized with a flowrate of 0.5 mL/min and wavelength of 222 nm. A complete analytical method validation was effectively carried out as per ICH Q2 (R1) guidelines. Recovery studies were performed at 50–150% level of working concentrations, and results were in the range of 99–101%. The linearity was detected in the range of LOQ to 200% of the specification limits i.e., 0.5% each for NEO and GLY, 0.01% for NEO Impurity B and 1.0% for rest of the impurities with respect to the test concentration of the respective components. For stability study, various stress conditions such as acid, base, oxidation and thermal as per ICH guidelines were studied. The high recovery and low relative standard deviation confirm the suitability of proposed method that can be employed for the routine analysis in bulk and pharmaceutical formulation.
UHPLC-MS/MS Method Development and Validation for the Genotoxic Impurities Trimethyl Phosphate and Triisopropyl Phosphate of Elagolix Sodium
Authors: Hao Yajie , Feng Zhong , Zhuang Xuhui , Teng Hao , Zhang Guimin 
Published: May 2023

Abstract
Elagolix sodium is a gonadotropin-releasing hormone (GnRH) receptor antagonist that inhibits endogenous GnRH signaling by competitively binding to GnRH receptors in the pituitary gland to treat moderate to severe pain associated with endometriosis. To keep the safety and quality of the drug, a fast quantitative method by reversed-phase ultrahigh-performance liquid chromatography coupled with tandem mass spectrometry has been developed and validated for the identification, assay and estimation of potential genotoxic impurities trimethyl phosphate and triisopropyl phosphate in commercial batches of this active pharmaceutical ingredient in accordance with International Conference on Harmonization guidelines Q2 and M7. The method was validated by assessing specificity, sensitivity, linearity, the limit of quantification and detection, accuracy, precision and robustness for above analytes at a very low concentration, whose quantification and detection limits reached to 24 and 4.8 pg/ml, respectively, and the total run time for a single injection was 6 min.
Left ventricular pseudoaneurysm after endoscopic mitral valve repair for active endocarditis
Authors: Kajiyama Koh , Hosoba Soh , Kato Riku , Ito Toshiaki 
Published: May 2023

Abstract
A left ventricular pseudoaneurysm is a rare complication that can occur after infective endocarditis, possibly leading to serious complications such as cardiac tamponade, rupture and recurrent infective endocarditis. We report a case of a totally-endoscopic repair of a pseudoaneurysm after endoscopic mitral valve repair. A 48-year-old woman underwent endoscopic mitral valve repair for active infective endocarditis. A left ventricular pseudoaneurysm was found 2 weeks after the surgery. The pseudoaneurysm was repaired through a left thoracotomy with a totally endoscopic platform. The postoperative course was uneventful, and there was no recurrence at 18 months. Left ventricular pseudoaneurysm may be repaired with a left thoracotomy totally endoscopic approach.
Orthostatic hypertension and major adverse events: a systematic review and meta-analysis
Authors: Pasdar Zahra , De Paola Lorenzo , Carter Ben , Pana Tiberiu A , Potter John F , Myint Phyo K 
Published: May 2023

Abstract

Aims
The role of orthostatic hypertension (OHT) in cardiovascular disease (CVD) and mortality is unclear. We aimed to determine if this association exists through a systematic review and meta-analysis.

Methods and results
Study inclusion criteria included: (i) any observational/interventional studies of participants aged ≥18 years (ii) that assessed the relationship between OHT and (iii) at least one outcome measure—all-cause mortality (primary outcome), coronary heart disease, heart failure, stroke/cerebrovascular disease, or neurocognitive decline. MEDLINE, EMBASE, Cochrane, clinicaltrials.gov, and PubMed were independently searched by two reviewers (inception—19 April 2022). Critical appraisals were conducted using the Newcastle–Ottawa Scale. Random-effects meta-analysis was performed using a generic inverse variance method, and narrative synthesis or pooled results were presented as an odds or hazards ratio (OR/HR), with 95% confidence interval. Twenty studies (n = 61 669; 47.3% women) were eligible, of which 13 were included in the meta-analysis (n = 55 456; 47.3% women). Median interquartile range (IQR) follow-up for prospective studies was 7.85 (4.12, 10.83) years. Eleven studies were of good quality, eight fair, and one poor. Relative to orthostatic normotension (ONT), systolic OHT (SOHT) was associated with a significant 21% greater risk of all-cause mortality (HR: 1.21, 1.05–1.40), 39% increased risk of CVD mortality based on two studies (HR: 1.39, 1.05–1.84), and near doubled odds of stroke/cerebrovascular disease (OR: 1.94, 1.52–2.48). The lack of association with other outcomes may be due to weak evidence or low statistical power.

Conclusion
Patients with SOHT may have higher mortality risk relative to those with ONT and increased odds of stroke/cerebrovascular disease. Whether interventions can reduce OHT and improve outcomes should be explored.
Effects of Interaction Method, Size, and Distance to Object on Augmented Reality Interfaces
Authors: Hussain Muhammad , Park Jaehyun , Kim Hyun K 
Published: May 2023

ABSTRACT
Augmented reality (AR) technologies are becoming increasingly popular. However, studies regarding the usability of AR interfaces are scarce. This study aims to derive the optimal usability design of the AR interface by analyzing the performance of 12 interface conditions (2 button sizes × 3 distances × 2 interaction types). An experiment was conducted using Microsoft HoloLens, in which participants performed button selection tasks with an array of 3 × 3 virtual buttons. The task completion time and the number of errors were measured along with a subjective satisfaction score. The results showed that a clicker-based interaction was more effective in task completion time, the number of errors and user satisfaction than a hand gesture. Furthermore, large buttons required a significantly shorter task completion time than small buttons. There was no significant difference in the number of errors between the two sizes. A distance of at least 80 cm from the eye to the virtual object is most favorable for a good performance. There was a significant difference in the task completion times between 40 cm and 80 cm and between 40 cm and 120 cm. These results can aid the interface designs for AR applications and devices.