Miracle-dz/UniFAR-FTUs huggingface dataset:
Bowen fluorescence in Scorpius X-1

The first measurements of O III Bowen fluorescence lines in the near-ultraviolet spectra of the X-ray binary system Scorpius X-1 are presented. The flux-calibrated spectra from the atmospheric limit to 1 micron also reveal the nitrogen Bowen lines near-4640 A, the Balmer and Paschen series of hydrogen, the Paschen and Brackett series of He II, and numerous lines from Fe II and He I, among others. All of these lines probably arise in emission-line regions photoionized by X-rays produced near the neutron star surface. The observed line intensities are used to estimate explicitly the roles of the O1 and O3 channels of the Bowen cascades, as well as the possible importance of charge transfer between H I asnd O IV. 83 refs.
Measurements of interacting turbulent shear layers in a duct

Measurements have been made of the turbulent flow in a rectangular duct of aspect ratio 12:1 at a Reynolds number $\overline{U}h/\nu = 10^5$ (based on duct height h) using conditional-sampling techniques. The lower boundary layer was heated in the entry region, and the fluctuating output of a resistance thermometer was used to distinguish ‘hot’ and ‘cold’ fluid. Thus separate velocity-fluctuation statistics could be obtained for fluid from the upper and lower boundary layers, even after the two layers had merged. The measurements suggest that the interaction region near the centre-line consists of a continuously contorting interface between the ‘hot’ and ‘cold’ layers, shaped by the eruption of large eddies across the centre-line from either side of the duct and surprisingly little affected by the inevitable fine-scale mixing. In the mean, this time-sharing between ‘hot’ and ‘cold’ fluid gives the impression of two superposed turbulence fields whose mean-square intensities add to give the total intensity. Exact superposition (which cannot take place in a nonlinear system) would imply that one layer had the same turbulent intensity profiles as an isolated boundary layer spreading into a non-turbulent free stream with the same mean velocity profile as the duct flow. The centre-line interaction grows in strength with increasing distance downstream until a steady rate of mutual eddy intrusion and fine-scale mixing is achieved, when the flow is commonly called ‘fully developed’. It is concluded that superposition (timesharing) is a physically reasonable first approximation for use in turbulence models for interacting shear layers: it is argued that better approximations could be obtained if necessary by correlating departures from superposition (i.e. changes in turbulence structure) by means of one or more interaction parameters.
New Thoughts on an Old Topic: Secrets of Bacterial Spore Resistance Slowly Being Revealed

The quest for bacterial survival is exemplified by spores formed by some Firmicutes members. They turn up everywhere one looks, and their ubiquity reflects adaptations to the stresses bacteria face. SUMMARY The quest for bacterial survival is exemplified by spores formed by some Firmicutes members. They turn up everywhere one looks, and their ubiquity reflects adaptations to the stresses bacteria face. Spores are impactful in public health, food safety, and biowarfare. Heat resistance is the hallmark of spores and is countered principally by a mineralized gel-like protoplast, termed the spore core, with reduced water which minimizes macromolecular movement/denaturation/aggregation. Dry heat, however, introduces mutations into spore DNA. Spores have countermeasures to extreme conditions that are multifactorial, but the fact that spore DNA is in a crystalline-like nucleoid in the spore core, likely due to DNA saturation with small acid-soluble spore proteins (SASPs), suggests that reduced macromolecular motion is also critical in spore dry heat resistance. SASPs are also central in the radiation resistance characteristic of spores, where the contributions of four spore features—SASP; Ca2+, with pyridine-2,6-dicarboxylic acid (CaDPA); photoproduct lyase; and low water content—minimize DNA damage. Notably, the spore environment steers UV photochemistry toward a product that germinated spores can repair without significant mutagenesis. This resistance extends to chemicals and macromolecules that could damage spores. Macromolecules are excluded by the spore coat which impedes the passage of moieties of ≥10 kDa. Additionally, damaging chemicals may be degraded or neutralized by coat enzymes/proteins. However, the principal protective mechanism here is the inner membrane, a compressed structure lacking lipid fluidity and presenting a barrier to the diffusion of chemicals into the spore core; SASP saturation of DNA also protects against genotoxic chemicals. Spores are also resistant to other stresses, including high pressure and abrasion. Regardless, overarching mechanisms associated with resistance seem to revolve around reduced molecular motion, a fine balance between rigidity and flexibility, and perhaps efficient repair.
Job search intentions and job attainment are self-regulated: Prospective analysis of the effects of self-efficacy, self-consciousness and core self-evaluations

The purpose of the present study was to extend the results of previous research exploring the paths between variables of the theory of planned behaviour and job attainment. The theory of planned behaviour assumes that attitude, subjective norm and self-efficacy contribute to intention, which in turn determines behaviour and, finally, an outcome. Regarding job attainment, several moderators and several antecedents were identified, but the possible role of self-efficacy was neglected. In addition to examining its role, we also consider one of its possible antecedent (i.e. core self-evaluations) and whether private self-consciousness moderates the path between job search self-efficacy and job search intention. Scales measuring these variables were administered to a sample of 141 jobseekers, including 57 men and 84 women, most of them being between 45 and 54 years (n = 42) or between 35 and 44 years (n = 34). Results corroborate that core self-evaluations are related to job search self-efficacy and that private self-consciousness moderates the path between job search self-efficacy and job search intention, but in an unexpected way. Core self-evaluations are also directly related to job attainment. Results are discussed with reference to the literature and their practical implications.
Molecular Dynamics Simulations of One-, Two-, Three-dimensional Hopping Dynamics

K. M. Aoki1,2,3, S. Fujiwara4, K. Sogo5, S. Ohnishi2, and T. Yamamoto6 1 iCFD, 1-16-5 Haramachi, Meguro-ku, Tokyo 152-0011, Japan 2 Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan 3 Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Tokyo 169-8555, Japan 4 Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan 5 Kitasato University, 1-15-1 Sagamihara, Kanagawa 228-8555, Japan 6 1-19-8 Shin-Yokohama, Kohoku-ku, Yokohama 222-0033, Japan
The direct and indirect predictors of career commitment

This study investigated concern, control, curiosity, and confidence serially mediated the associations between psychological flexibility (PF) at work and career commitment, based on the career construction model of adaptation and gender, age, education level, and tenure differences in career commitment. The white-collar employees (N = 353, 55% female) completed the Career Commitment Scale, Work-Related Acceptance and Action Questionnaire and Career Adaptabilities Scale-Short Form, and a Demographic Information Form. A multiple serial mediation model indicated that PF at work was related to concern, control, curiosity, and confidence, which in turn, contributed to career commitment, serially. The results of one-way ANOVA showed that career commitment differs according to education level, only. These findings suggested implications for theory, research, and practice, responding to the cultural context.
Characterization and performance optimization of radiation monitoring sensors for high energy physics experiments at the CERN LHC and Super-LHC

In order to study the matter originating from the universe, a new particle accelerator named the Large Hadron Collider (LHC) has been built at CERN. The radiation environment generated by the hadrons collisions in the high energy physics experiments of the LHC will be complex and locally very intense. For monitoring this complex radiation field, dosimeters have been installed in the LHC experiments. In previous study, RadFET dosimeters and PIN diodes have been characterized for their use in the particle accelerator. However, even if the RadFETs sensors have been already extensively characterized, their radiation response can be affected by their package. Depending on the material and the geometry, the package can induce errors in the dose measurement. In this thesis, a complete study has been carried out in order to evaluate its influence. Concerning the PIN diodes, the readout protocol used for the LHC is no longer valuable for the Super-LHC. Therefore, a complete study on their radiation response has been performed up to very high fluences (≈ 6×1015 neq/cm2) in view of their utilization as radiation monitoring sensors for the Super-LHC.
Relativistic quantum information

Over the past few years, a new field of high research intensity has emerged that blends together concepts from gravitational physics and quantum computing. Known as relativistic quantum information, or RQI, the field aims to understand the relationship between special and general relativity and quantum information. Since the original discoveries of Hawking radiation and the Unruh effect, it has been known that incorporating the concepts of quantum theory into relativistic settings can produce new and surprising effects. However it is only in recent years that it has become appreciated that the basic concepts involved in quantum information science undergo significant revision in relativistic settings, and that new phenomena arise when quantum entanglement is combined with relativity. A number of examples illustrate that point. Quantum teleportation fidelity is affected between observers in uniform relative acceleration. Entanglement is an observer-dependent property that is degraded from the perspective of accelerated observers moving in flat spacetime. Entanglement can also be extracted from the vacuum of relativistic quantum field theories, and used to distinguish peculiar motion from cosmological expansion. The new quantum information-theoretic framework of quantum channels in terms of completely positive maps and operator algebras now provides powerful tools for studying matters of causality and information flow in quantum field theory in curved spacetimes. This focus issue provides a sample of the state of the art in research in RQI. Some of the articles in this issue review the subject while others provide interesting new results that will stimulate further research. What makes the subject all the more exciting is that it is beginning to enter the stage at which actual experiments can be contemplated, and some of the articles appearing in this issue discuss some of these exciting new developments. The subject of RQI pulls together concepts and ideas from special relativity, quantum optics, general relativity, quantum communication and quantum computation. The high level of current interest in these subjects is exemplified by the recent award of the 2012 Nobel Prize in Physics to Serge Haroche and David J Wineland for ground-breaking experimental methods that enable measuring and manipulation of individual quantum systems. It is our hope that this issue will encourage new researchers to enter this rapidly developing and exciting new field. R B Mann and T C Ralph Guest Editors
Metasynthesis in communication research: synthesizing the past to aid the future

We conducted a comprehensive content analysis of Communication Education in order to determine the type of article and its subsequent methodology (if an original article) in an e ﬀ ort to make an argument for greater appreciation and inclusion of metasynthesis in instructional communication scholarship. 1 Articles published in Communication Education between January 2012 and May 2022 were analyzed as the unit of analysis similar to Conley and Yun (2017). We categorized articles into the following types: editor ’ s note, forum, meta-analysis, metareview, metasynthesis, mixed methods, qualitative, quantitative, and rhetorical/critical. Our content analysis authenticated that the over-whelming majority of original research articles utilized quantitative methods. Conley and Yum ’ s (2017) research found similar ﬁ ndings from 2000 to 2016. Quantitative methodologies have predominated the methods used by communication researchers who published in Communication Education . Qualitative methodologically driven research articles occupied a signi ﬁ cantly smaller portion.
Annealing behavior and temperature dependence of the growth‐induced magnetic anisotropy in epitaxial Sm‐YIGG

The annealing behavior and temperature dependence of the growth‐induced magnetic anisotropy in epitaxial films of Y2.6Sm0. 4Ga1.2Fe3. 8O12 have been investigated. This garnet composition is presently being widely used for magnetic bubble domain device work. Decay times for the anisotropy are tens of hours at 1250°C and several hours at 1325°C. This rapid decrease in annealing time with increasing annealing temperature can be understood by postulating that oxygen vacancies play a significant role in determining the diffusion rate and that the oxygen vacancy concentration increases rapidly with increasing temperature. From these considerations, a lower limit of 2.8×107 yr is estimated for the decay time of the anisotropy at 100°C, based on an assumed activation energy of 1 eV. By using torque magnetometer measurements, the anisotropy has been found to vary by about an order of magnitude over the temperature range −10 to 110°C. Only two different kinds of temperature dependences were observed among films grown.
Effect of plasma-β on the onset of plasmoid instability in Sweet–Parker current sheets

Abstract A numerical study of magnetic reconnection in two-dimensional resistive magnetohydrodynamics for Sweet–Parker current sheets that are subject to plasmoid instability is carried out. The effect of the initial upstream plasma-β on the critical Lundquist number Sc for the onset of plasmoid instability is studied. Our results indicate a weak dependence, with a value of Sc ≃ 1.5 × 104 in the limit of zero β, and a value of Sc ≃ 1 × 104 in the opposite high β regime (β ≫ 1). A similar dependence was previously obtained (Ni et al. 2012 Phys. Plasm. 19, 072902), but with a somewhat much larger variation, that can be largely attributed to the different configuration setup used in their study, and also to the definition of the Lundquist number. This conclusion does not depend significantly on the equilibrium used, i.e. both initial configurations with either plasma density or temperature spatial variations lead to very similar results. Finally, we show that the inner plasmoid structure appears as an under-dense hotted magnetic island, with a local temperature increase that is noticeably strengthened for low β cases.
Beta bursts correlate with synchronization of movements to rhythmic sounds

Accumulating evidence indicates transient beta bursts play an important role in the representation of temporal information and prediction. However, the role of beta bursts in sensorimotor synchronization (SMS) involving active interactions between motor and sensory systems to synchronize predictive movements to periodic events remains unclear. To answer this question, 15 participants were invited to complete a finger-tapping task whilst high-density EEG (128 channels) was recorded. Participants tapped with their right index finger in synchrony with 1 Hz and 0.5 Hz tone trains. In line with previous findings, we found a negative mean asynchrony between tone and tap time, i.e., taps preceded tones for both tone frequencies (1 and 0.5 Hz). In the EEG data, beta bursts were detected and their timing in relationship with tapping and auditory tracking was examined. Results revealed that beta bursts tracked tapping and were modulated by the low frequency phase of the tone frequency (i.e., 1 Hz or 0.5 Hz). Importantly, the locking of beta bursts to the phase of auditory tracking correlated with the behavioural variance on a single trial level that occurred while tapping to the tones. These results demonstrate a critical role for an interplay between beta bursts and low frequency phase in coordinating rhythmic behaviour.
LiverZap: A chemoptogenetic tool for global and locally restricted hepatocyte ablation to study cellular behaviours in liver regeneration

The liver restores its mass and architecture after injury. Yet, investigating morphogenetic cell behaviours and signals that repair tissue architecture at high spatiotemporal resolution remains challenging. We developed LiverZap, a tuneable chemoptogenetic liver injury model in zebrafish. LiverZap employs formation of a binary FAP-TAP photosensitiser followed by brief near-infrared illumination inducing hepatocyte-specific death and recapitulating mammalian liver injury types. The tool enables local hepatocyte ablation and extended live imaging of regenerative cell behaviours, critical for studying cellular interactions at the interface of healthy and damaged tissue. Applying LiverZap, we show that targeted hepatocyte ablation in a small region-of-interest is unexpectedly sufficient to trigger Liver Progenitor-like Cell (LPC)-mediated regeneration, challenging the current understanding of LPC activation. Associated dynamic bilary network rearrangement and E-cadherin relocalisation suggest modulation of cell adhesion as an integral step of LPC-mediated liver regeneration. This precisely targetable live cell ablation model will enable addressing of key regeneration paradigms.
BOLD Moments: modeling short visual events through a video fMRI dataset and metadata

Studying the neural basis of human dynamic visual perception requires extensive experimental data to evaluate the large swathes of functionally diverse brain neural networks driven by perceiving visual events. Here, we introduce the BOLD Moments Dataset (BMD), a repository of whole-brain fMRI responses to over 1,000 short (3s) naturalistic video clips of visual events across ten human subjects. We use the videos’ extensive metadata to show how the brain represents word- and sentence-level descriptions of visual events and identify correlates of video memorability scores extending into the parietal cortex. Furthermore, we reveal a match in hierarchical processing between cortical regions of interest and video-computable deep neural networks, and we showcase that BMD successfully captures temporal dynamics of visual events at second resolution. With its rich metadata, BMD offers new perspectives and accelerates research on the human brain basis of visual event perception.
Whole-genome Duplications and the Long-term Evolution of Gene Regulatory Networks in Angiosperms

Angiosperms have a complex history of whole-genome duplications (WGDs), with varying numbers and ages of WGD events across clades. These WGDs have greatly affected the composition of plant genomes due to the biased retention of genes belonging to certain functional categories following their duplication. In particular, regulatory genes and genes encoding proteins that act in multiprotein complexes have been retained in excess following WGD. Here, we inferred protein-protein interaction (PPI) networks and gene regulatory networks (GRNs) for seven well-characterized angiosperm species and explored the impact of both WGD and small-scale duplications (SSD) in network topology by analyzing changes in frequency of network motifs. We found that PPI networks are enriched in WGD-derived genes associated with dosage-sensitive intricate systems, and strong selection pressures constrain the divergence of WGD-derived genes at the sequence and PPI levels. WGD-derived genes in network motifs are mostly associated with dosage-sensitive processes, such as regulation of transcription and cell cycle, translation, photosynthesis, and carbon metabolism, while SSD-derived genes in motifs are associated with response to biotic and abiotic stress. Recent polyploids have higher motif frequencies than ancient polyploids, while WGD-derived network motifs tend to be disrupted on the longer term. Our findings demonstrate that both WGD and SSD have contributed to the evolution of angiosperm GRNs, but in different ways, with WGD events likely having a more significant impact on the short-term evolution of polyploids.
Monomeric agonist peptide/MHCII complexes activate T‐cells in an autonomous fashion

Molecular crowding of agonist peptide/MHC class II complexes (pMHCIIs) with structurally similar, yet per se non-stimulatory endogenous pMHCIIs has been postulated to sensitize T-cells for the recognition of single antigens on the surface of dendritic cells and B-cells. When testing this premise with the use of advanced live cell microscopy, we observed pMHCIIs as monomeric, randomly distributed entities diffusing rapidly after entering the APC surface. Synaptic TCR-engagement of highly abundant endogenous pMHCIIs was low or non-existent and affected neither TCR-engagement of rare agonist pMHCII in early and advanced synapses nor agonist-induced TCR-proximal signaling. Our findings highlight the capacity of single freely diffusing agonist pMHCIIs to elicit the full T-cell response in an autonomous and peptide-specific fashion with consequences for adaptive immunity and immunotherapeutic approaches. SHORT SUMMARY Platzer et al. revealed via highly quantitative and single molecule live cell microscopy the nature of peptide-loaded MHC class II molecules (pMHCII) as monomeric, densely populating, randomly distributed and predominantly rapidly diffusing entities on the surface of B-cells and dendritic cells. Low abundant stimulatory agonist pMHCII acted as autonomous units with the highest chance of T-cell detection when equally spread on APCs. The presence of bystander-pMHCII previously termed “co-agonist pMHC” affected neither synaptic agonist -TCR-binding nor efficiencies of T-cell recognition. “Co-agonist”-TCR-binding resembled random molecular collisions. Findings inform the design of T-cell-based immunotherapies.