bluuebunny/crossref_metadata_2025_split huggingface dataset:
Causal agents of Stemphylium-induced foliar diseases of tomatoes and other Solanaceae hosts in Brazil
Authors: Torres Tiago Bezerra , Boiteux Leonardo Silva , Perdomo David Nataren , Veloso Josiene Silva , Fonseca Maria Esther de Noronha , Fontenelle Mariana Rodrigues , Reis Ailton 
Published: February 2024

Abstract

Aim
An extensive survey was done to clarify the prevalent Stemphylium species on Solanaceae plants across Brazil, and their host ranges.

Methods and Results
Eighty nine (89) Stemphylium isolates were obtained from naturally infected tomatoes as well as S. paniculatum, potato, eggplant, scarlet eggplant (Solanum aethiopicum var. gilo), Physalis angulata, and Capsicum species. Phylogenetic analyses encompassing the ITS-5.8S rDNA and glyceraldehyde-3-phosphate dehydrogenase genomic regions placed the isolates into two distinct groupings with either Stemphylium lycopersici or S. solani. Isolates of S. lycopersici (n = 81) were obtained infecting tomato, potato, eggplant, S. paniculatum, and P. angulata. Isolates of S. solani (n = 8) were detected in natural association with scarlet eggplant and tomato. Two isolates of S. lycopersici displayed a wide experimental host range in greenhouse bioassays, infecting accessions of 12 out of 18 species. Ocimum basilicum (Lamiaceae) was the only experimental host outside the Solanaceae family.
Enhancement of microbicidal efficacy of chemical disinfectants when combined with ultrasound technology
Authors: Biasi Antonio , Gionta Mirella , Pisa Federica , Pizzuti Maura , Sortino Andrea , Immesi Alessio , Alt Jodi R , Zampaglione Imma 
Published: February 2024

Abstract

Aims
This study investigated the antimicrobial efficacy of ultrasound technology (US) in combination with two different disinfectants (Disinfectant A and Disinfectant B), containing peracetic acid (PAA) and quaternary ammonium compounds (QACs), respectively, against two sporigenic pathogens, Aspergillus brasiliensis and Bacillus subtilis.

Methods and results
The microbicidal activity of the coupled treatment was compared with the use of the disinfectants alone, and the efficacy of the disinfection strategies was evaluated by the log reduction of the population of the microorganism inoculated onto stainless-steel surface. The combination treatment resulted in a log reduction of 5.40 and 3.88 (Disinfectant A + US) against A. brasiliensis and B. subtilis, at 850 and 500 ppm PAA, compared to 265 and 122 (Disinfectant A only). For Disinfectant B, in combination with US, showed a logarithmic reduction of 5.04 and 4.79 against A. brasiliensis and B. subtilis at 078% v v−1 and 392% v v−1 QACs, respectively, vs. 1.58 and 1.64 (Disinfectant B only). Moreover, no colonies or not statistically significant growth was observed within the US bath containing the disinfectant.

Conclusions
The antimicrobial efficacy of the two disinfectants was greatly enhanced when used in combination with US, and this also makes it possible to avoid the overuse of chemicals for disinfection.
A novel bioinformatic method for the identification of antimicrobial peptides in metagenomes
Authors: Megaw Julianne , Skvortsov Timofey , Gori Giulia , Dabai Aliyu I , Gilmore Brendan F , Allen Christopher C R 
Published: February 2024

Abstract

Aims
This study aimed to develop a new bioinformatic approach for the identification of novel antimicrobial peptides (AMPs), which did not depend on sequence similarity to known AMPs held within databases, but on structural mimicry of another antimicrobial compound, in this case an ultrashort, synthetic, cationic lipopeptide (C12-OOWW-NH2).

Methods and results
When applied to a collection of metagenomic datasets, our outlined bioinformatic method successfully identified several short (8–10aa) functional AMPs, the activity of which was verified via disk diffusion and minimum inhibitory concentration assays against a panel of 12 bacterial strains. Some peptides had activity comparable to, or in some cases, greater than, those from published studies that identified AMPs using more conventional methods. We also explored the effects of modifications, including extension of the peptides, observing an activity peak at 9–12aa. Additionally, the inclusion of a C-terminal amide enhanced activity in most cases. Our most promising candidate (named PB2-10aa-NH2) was thermally stable, lipid-soluble, and possessed synergistic activity with ethanol but not with a conventional antibiotic (streptomycin).

Conclusions
While several bioinformatic methods exist to predict AMPs, the approach outlined here is much simpler and can be used to quickly scan huge datasets. Searching for peptide sequences bearing structural similarity to other antimicrobial compounds may present a further opportunity to identify novel AMPs with clinical relevance, and provide a meaningful contribution to the pressing global issue of AMR.
A Scoping Review of Compassion Fatigue and Compassion Satisfaction in Burn Therapists
Authors: Yelvington Miranda L , Corson Tyler , Tarver Talicia , Teague Tiffany , Oguntola-Blount Augustina , Reynolds Stacey 
Published: February 2024

Abstract
Occupational and physical therapists who routinely provide potentially painful and distressing rehabilitation to burn survivors are at risk for developing compassion fatigue. Burn therapists may also experience compassion satisfaction based on the successes their patients accomplish. The purpose of this review was to synthesize the literature related to compassion fatigue and satisfaction in therapists who work with burn survivors, explore previously reported predictors and mediators of (and responses to) these constructs, and identify gaps in the literature. Original, peer-reviewed papers published from journal inception to May 2023 were obtained from 5 electronic bibliographic databases: CINAHL, Embase, PsycINFO, PubMed, and Web of Science. Studies were eligible if they (1) reported compassion fatigue or its related concepts and (2) focused on occupational or physical therapists who work with burn survivors directly or as a member of a multidisciplinary burn treatment team. The initial search revealed 284 articles, 2 of which met inclusion criteria and are summarized in this scoping review. Neither article focused solely on burn therapists but examined the experiences of multidisciplinary burn team members working in single burn centers in North America. Both studies used a cross-sectional survey-based design to assess concepts related to compassion fatigue and compassion satisfaction. This scoping review uncovered important gaps in the literature related to compassion fatigue or satisfaction in burn therapists. More research is needed to better understand the interplay between concepts as well as their relationship to burn therapists’ outcomes.
Numerical simulation of resistivity and saturation estimation of pore-type gas hydrate reservoirs in the permafrost region of the Qilian Mountains
Authors: Hu Xudong , Zou Changchun , Qin Zhen , Yuan Hai , Song Guo , Xiao Kun 
Published: February 2024

Abstract
The pore-type hydrate reservoirs in the permafrost region of the Qilian Mountains (PRQM) have complex characteristics, including low porosity, low permeability, high shale content, and conductive minerals. Currently, the research on the electrical properties of these reservoirs still needs to be sufficiently in depth, and there are limitations in well-logging evaluation methods. To fill in this gap, a conductivity model of pore-type gas hydrate reservoirs (GHRs) is established based on the pore-combination modeling theory to investigate the influencing factors of the resistivity characteristics of GHRs through numerical simulations. The comparison between the laboratory-measured resistivity of different hydrate saturations and the results of the calculated model shows good agreement, indicating the accuracy of the conductivity model in describing the electrical characteristics of GHRs in the PRQM. Compared to conductive minerals, the numerical simulation results indicate that the high shale content is the main reason for the decrease in resistivity of pore-type GHRs in the study area. The hydrate saturation evaluation of well DK-3 from 386.3 to 393.6 m depth shows that the hydrate saturation ranges from 5.1 to 66.4%, with an average value of 44.0%. The identified hydrate interval using this model is consistent with the actual hydrate interval encountered during the drilling. This study, as an innovation, can help clarify the conductive mechanism of pore-type GHRs in the PRQM and provide more accurate parameters for evaluating gas hydrate resources in the study area.
Child support and income inequalities: a cross-continental comparison from welfare design to judicial implementation
Authors: Biland Emilie 
Published: February 2024

Abstract
This article analyses why and how child support policy contributes to income inequalities as well as to cross-national variation. It uses an in-depth comparison between France and Quebec (Canada) and drives on a multi-method empirical design to assess how this policy has been designed within each welfare state regime from the 1970s to the 2020s and how family lawyers and lower court judges implement it. It shows that national conceptions of solidarity and justice differ, along with the differences between those two legal systems, leading to cross-national variations regarding child support policy. In Quebec, the neo-liberal wave and the powerful feminist movement have converged to ensure that fathers are made to face up to their financial responsibilities towards their children, which has positive effects on the wealthiest and middle-class families. In contrast, in France, the feminist movement has been less influential while the long-standing family policy has favoured state protection towards lone mothers. As a result, the financial risks involved in separation are (partially) compensated by a state system of redistribution, rather than by private remedies, which lead the French system to be more effective for lower-class families. As a result, national context still matters a lot in the part institutional arrangements and professional practices play in income inequalities after parental separations.
Convergence properties of fine structure constant measurements using quasar absorption systems
Authors: Webb John K , Lee Chung-Chi 
Published: February 2024

ABSTRACT
Searches for space–time variations of fundamental constants have entered an era of unprecedented precision. New, high-quality quasar spectra require increasingly refined analytical methods. In this paper, a continuation in a series to establish robust and unbiased methodologies, we explore how convergence criteria in non-linear least-squares optimization impact on quasar absorption system measurements of the fine structure constant α. Given previous claims for high-precision constraints, we critically examine the veracity of a so-called blinding approach, in which α is fixed at the terrestrial value during the model building process, releasing it as a free parameter only after the ‘final’ absorption system kinematic structure has been obtained. We show that this approach results in such small consecutive parameter steps during minimization that convergence is unlikely to be reached, even after as many as 1000 iterations. The fix is straightforward: α must be treated as a free parameter from the earliest possible stages of absorption system model building. The implication of the results presented here is that all previous measurements that have used initially fixed α should be reworked.
Redshift-dependent RSD bias from intrinsic alignment with DESI Year 1 spectra
Authors: Lamman Claire , Eisenstein Daniel , Aguilar Jessica Nicole , Ahlen Steven , Brooks David , Claybaugh Todd , de la Macorra Axel , Dey Arjun , Dey Biprateep , Doel Peter , Ferraro Simone , Font-Ribera Andreu , Forero-Romero Jaime E , Gontcho Satya Gontcho A , Guy Julien , Kehoe Robert , Kremin Anthony , Le Guillou Laurent , Levi Michael , Manera Marc , Miquel Ramon , Newman Jeffrey A , Nie Jundan , Palanque-Delabrouille Nathalie , Prada Francisco , Rezaie Mehdi , Rossi Graziano , Sanchez Eusebio , Schubnell Michael , Hee-Jong Seo , Tarlé Gregory , Weaver Benjamin Alan , Zhou Zhimin 
Published: February 2024

ABSTRACT
We estimate the redshift-dependent, anisotropic clustering signal in the Dark Energy Spectroscopic Instrument (DESI) Year 1 Survey created by tidal alignments of Luminous Red Galaxies (LRGs) and a selection-induced galaxy orientation bias. To this end, we measured the correlation between LRG shapes and the tidal field with DESI’s Year 1 redshifts, as traced by LRGs and Emission-Line Galaxies. We also estimate the galaxy orientation bias of LRGs caused by DESI’s aperture-based selection, and find it to increase by a factor of seven between redshifts 0.4−1.1 due to redder, fainter galaxies falling closer to DESI’s imaging selection cuts. These effects combine to dampen measurements of the quadrupole of the correlation function (ξ2) caused by structure growth on scales of 10–80 h−1 Mpc by about 0.15 per cent for low redshifts (0.4 &lt; z &lt; 0.6) and 0.8 per cent for high (0.8 &lt; z &lt; 1.1), a significant fraction of DESI’s error budget. We provide estimates of the ξ2 signal created by intrinsic alignments that can be used to correct this effect, which is necessary to meet DESI’s forecasted precision on measuring the growth rate of structure. While imaging quality varies across DESI’s footprint, we find no significant difference in this effect between imaging regions in the Legacy Imaging Survey.
The optical intra-day variability of BL laceratae object 2200 + 420
Authors: Li Huai-Zhen , Guo Di-Fu , Qin Long-Hua , Yi Ting-Feng , Liu Fen , Gao Quan-Gui , Chang Xin 
Published: February 2024

ABSTRACT
We observed the blazar 2200 + 420 in the I, R, and V bands using the 1.0 m telescope at Weihai Observatory of Shandong University on eight nights in October 2022 and obtained over 3800 data points. Using the F-test and ANOVA test, we analysed the light curves and found intra-day (IDV) variability every night. We found that all variability amplitudes (Amp) are over 10 per cent, except for 2022 October 22, with four nights having amplitudes above 20 per cent and the maximum amplitude reaching over 42 per cent. Additionally, we discovered a minimal variability time-scale of 24.6 min and a bluer-when-brighter (BWB) trend on intra-day for this object. No significant time lag between different bands was detected during the eight nights of observation. Based on the shortest variability time-scale and a model assuming the variations arise close to the central black hole that are adverted into the jet, we estimated the upper limits of the black hole mass to be MBH = 8.6 × 107 M⊙. The BWB trend on intra-day supports the shock-in-jet model, which can also explain the IDV of blazars.
Cold quasar investigation: comparing star formation rates to black hole growth
Authors: Mintz Sasha , Coleman Brandon , Kirkpatrick Allison 
Published: February 2024

ABSTRACT
Cold quasars are a rare population of luminous, unobscured quasars associated with host galaxies that have a high star formation rate. We aimed to study the host galaxies of 64 of these cold quasars in order to probe how the supermassive black holes and host galaxies were co-evolving. We compiled data from the XMM-XXL survey and cross-matched with the VHS, WISE, and HerMES surveys to obtain multiwavelength photometry spanning the X-ray to the infrared and including optical spectroscopy. From the data, we calculated the supermassive black hole’s mass using broad emission from the Mg ii and Hbeta lines. We compared this with the stellar mass of the entire galaxy and found that the black holes are significantly more massive than would be predicted by local relations, indicating that the majority of black hole growth precedes the bulk of the the stellar mass formation. In addition to this, we created a spectral energy distribution for each galaxy to calculate the star formation rate. We compared the star formation rate with the black hole accretion rate and find that the stellar mass is rapidly increasing at a relative rate faster than the black hole growth, supporting the picture where the black hole grows first.
The Thousand-Pulsar-Array programme on MeerKAT – XII. Discovery of long-term pulse profile evolution in seven young pulsars
Authors: Basu A , Weltevrede P , Keith M J , Johnston S , Karastergiou A , Oswald L S , Posselt B , Song X , Cameron A D 
Published: February 2024

ABSTRACT
A number of pulsars are known to have profile evolution on time-scales of months, often correlated with spin-down rate changes. Here, we present the first result from 3 yr of monitoring observations from MeerKAT as part of the Thousand Pulsar Array programme. This programme obtains high-fidelity pulse profiles for ∼ 500 pulsars, which enabled the detection of subtle changes in seven sources not previously known to exhibit long-term profile evolution. A 2D Gaussian convolution is used to highlight correlated emission variability in both the pulse phase and observing epoch direction. Simulations show that for one additional source the observed profile variability is likely to originate from stochastic single-pulse shape variability (jitter). We find that it is common for long-term profile variability to be associated with changes in polarization fractions, but not with polarization position angle (PA) changes. PA changes are expected if emission height changes or precession is responsible for the profile variability. PSR J1741−3927 is the only pulsar in our sample that shows correlated PA variability, and this is associated with orthogonal polarization mode activity. For the six other pulsars limits on possible emission height changes and impact angle changes are derived. These limits are consistent with the small changes in the total intensity profile shape. None of the sources show detectable spin-down variability correlated with the emission changes, which are thought to be driven by magnetospheric current fluctuations. Therefore, the absence of correlated spin-down rate variability allows upper limits to be placed on changes in the magnetospheric charge density.
Hydrodynamical evolution of black-hole binaries embedded in AGN discs – III. The effects of viscosity
Authors: Li Rixin , Lai Dong 
Published: February 2024

ABSTRACT
Stellar-mass binary black holes (BBHs) embedded in active galactic nucleus (AGN) discs offer a distinct dynamical channel to produce black hole mergers detected in gravitational waves by LIGO/Virgo. To understand their orbital evolution through interactions with the disc gas, we perform a suite of two-dimensional high-resolution, local shearing box, viscous hydrodynamical simulations of equal-mass binaries. We find that viscosity not only smooths the flow structure around prograde circular binaries,but also greatly raises their accretion rates. The torque associated with accretion may be overwhelmingly positive and dominate over the gravitational torque at a high accretion rate. However, the accreted angular momentum per unit mass decreases with increasing viscosity, making it easier to shrink the binary orbit. In addition, retrograde binaries still experience rapid orbital decay, and prograde eccentric binaries still experience eccentricity damping. Our numerical experiments further show that prograde binaries are more likely to be hardened if the physical sizes of the accretors are sufficiently small such that the accretion rate is reduced. The dependence of the binary accretion rate on the accretor size can be weaken through boosted accretion either due to a high viscosity or a more isothermal-like equation of state. Our results widen the explored parameter space for the hydrodynamics of embedded BBHs and demonstrate that their orbital evolution in AGN discs is a complex, multifaceted problem.
A hidden population of massive white dwarfs: two spotted K + WD binaries
Authors: Rowan Dominick M , Jayasinghe Tharindu , Tucker Michael A , Lam Casey Y , Thompson Todd A , Kochanek Christopher S , Abrams Natasha S , Fulton Benjamin J , Ilyin Ilya , Isaacson Howard , Lu Jessica R , Martin David V , Nicholson Belinda 
Published: February 2024

ABSTRACT
The identification and characterization of massive (≳ 0.8 M⊙) white dwarfs is challenging in part due to their low luminosity. Here, we present two candidate single-lined spectroscopic binaries, Gaia DR3 4014708864481651840 and 5811237403155163520, with K-dwarf primaries and optically dark companions. Both have orbital periods of P ∼ 0.45 d and show rotational variability, ellipsoidal modulations, and high-amplitude radial velocity variations. Using light curves from the Transiting Exoplanet Survey Satellite (TESS), radial velocities from ground-based spectrographs, and spectral energy distributions, we characterize these binaries to describe the nature of the unseen companion. We find that both systems are consistent with a massive white dwarf companion. Unlike simple ellipsoidal variables, star-spots cause the light-curve morphology to change between TESS sectors. We attempt to constrain the orbital inclination using phoebe binary light-curve models, but degeneracies in the light curves of spotted stars prevent a precise determination. Finally, we search for similar objects using Gaia DR3 and TESS, and comment on these systems in the context of recently claimed compact object binaries.
Identification and characterization of six spectroscopically confirmed massive protostructures at 2.5 &lt; z &lt; 4.5
Authors: Shah Ekta A , Lemaux Brian , Forrest Benjamin , Cucciati Olga , Hung Denise , Staab Priti , Hathi Nimish , Lubin Lori , Gal Roy R , Shen Lu , Zamorani Giovanni , Giddings Finn , Bardelli Sandro , Cassara Letizia Pasqua , Cassata Paolo , Contini Thierry , Golden-Marx Emmet , Guaita Lucia , Gururajan Gayathri , Koekemoer Anton M , McLeod Derek , Tasca Lidia A M , Tresse Laurence , Vergani Daniela , Zucca Elena 
Published: February 2024

ABSTRACT
We present six spectroscopically confirmed massive protostructures, spanning a redshift range of 2.5 &lt; z &lt; 4.5 in the Extended Chandra Deep Field South (ECDFS) field discovered as part of the Charting Cluster Construction in VUDS and ORELSE (C3VO) survey. We identify and characterize these remarkable systems by applying an overdensity measurement technique on an extensive data compilation of public and proprietary spectroscopic and photometric observations in this highly studied extragalactic field. Each of these six protostructures, i.e. a large scale overdensity (volume &gt;9000 cMpc3) of more than 2.5σδ above the field density levels at these redshifts, have a total mass Mtot ≥ 1014.8 M⊙ and one or more highly overdense (overdensity$\, \gt 5\sigma _{\delta }$) peaks. One of the most complex protostructures discovered is a massive (Mtot = 1015.1M⊙) system at z ∼ 3.47 that contains six peaks and 55 spectroscopic members. We also discover protostructures at z ∼ 3.30 and z ∼ 3.70 that appear to at least partially overlap on sky with the protostructure at z ∼ 3.47, suggesting a possible connection. We additionally report on the discovery of three massive protostructures at z = 2.67, 2.80, and 4.14 and discuss their properties. Finally, we discuss the relationship between star formation rate and environment in the richest of these protostructures, finding an enhancement of star formation activity in the densest regions. The diversity of the protostructures reported here provide an opportunity to study the complex effects of dense environments on galaxy evolution over a large redshift range in the early Universe.