bluuebunny/crossref_metadata_2025_split huggingface dataset:
Heads or Tails? Dung Beetle (Coleoptera: Scarabaeidae: Scarabaeinae and Aphodiinae) Attraction to Carrion
Authors: Stone Rachel L , Engasser Emmy L , Jameson Mary Liz 
Published: January 2021

AbstractNecrophilous insects occupy an ecologically interesting niche because carrion is a highly desirable but ephemeral food source. Dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae and Aphodiinae) within temperate regions are frequently found at carrion, but little is known about their attraction to this resource. Are dung beetles attracted to the carrion itself or are they indirectly attracted due to the exposed gastrointestinal contents? We investigated the association between dung beetles and carrion by examining the distribution of dung beetles on the cranial and caudal end of rat carcasses, delimiting a resource more attractive to necrophagous insects (cranial end) from a resource more attractive to coprophagous insects (caudal end). Dung beetle distribution on rat carcasses was compared with the distribution of carrion beetles (Coleoptera: Silphidae), which serve as a null model of distribution patterns for a taxon known to directly target carrion. Results demonstrated that dung beetles show higher attraction to the cranial end of rat carrion. A similar distribution pattern was found in carrion beetles, suggesting that similar resources were targeted. When dung beetles were grouped by behavioral guilds, rollers and tunnelers also shared this pattern of greater abundance at the cranial end, but dwellers showed no discernible difference.
The nucleation of the Izmit and Düzce earthquakes: some mechanical logic on where and how ruptures began
Authors: Bouchon Michel , Karabulut Hayrullah , Aktar Mustafa , Özalaybey Serdar , Schmittbuhl Jean , Bouin Marie-Paule , Marsan David 
Published: January 2021

SUMMARYIn spite of growing evidence that many earthquakes are preceded by increased seismic activity, the nature of this activity is still poorly understood. Is it the result of a mostly random process related to the natural tendency of seismic events to cluster in time and space, in which case there is little hope to ever predict earthquakes? Or is it the sign that a physical process that will lead to the impending rupture has begun, in which case we should attempt to identify this process. With this aim we take a further look at the nucleation of two of the best recorded and documented strike-slip earthquakes to date, the 1999 Izmit and Düzce earthquakes which ruptured the North Anatolian Fault over ∼200 km. We show the existence of a remarkable mechanical logic linking together nucleation characteristics, stress loading, fault geometry and rupture speed. In both earthquakes the observations point to slow aseismic slip occurring near the ductile-to-brittle transition zone as the motor of their nucleation.
The cognitive development from childhood to adolescence of low birthweight children born after medically assisted reproduction—a UK longitudinal cohort study
Authors: Cozzani Marco , Aradhya Siddartha , Goisis Alice 
Published: January 2021

Abstract

Background
Previous research has documented that children conceived through medically assisted reproduction (MAR) are at increased risk of poor birth outcomes, such as low birthweight (LBW), which are risk factors for stunted longer-term cognitive development. However, parents who undergo MAR to conceive have, on average, advantaged socioeconomic backgrounds which could compensate for the negative effects of being born LBW. Previous studies have not analysed whether the negative effects of LBW are attenuated among MAR conceived children.

Methods
We draw on the UK Millennium Cohort Study (sweeps 1–6) which contains a sub-sample of (N = 396) MAR-conceived children. The dependent variable measures cognitive ability at around ages 3, 5, 7, 11 and 14. We examine the cognitive development of four groups of children: MAR-conceived low birthweight (MAR LBW); MAR-conceived non-low birthweight (MAR NLBW); naturally conceived low birthweight (NC LBW); naturally conceived non-low birthweight (NC NLBW). We estimate the two following linear regression models for each sweep: (i) a baseline model to examine the unadjusted association between cognitive development and low birthweight by mode of conception; and (ii) a model adjusted by socio-demographic family characteristics.

Results
In baseline models, MAR LBW children [age 3: β  =  0.021, 95% confidence interval (CI): -0.198, 0.241; age 5: β  =  0.21, 95% CI: 0.009, 0.418; age 7: β  =  0.163, 95% CI: -0.148, 0.474; age 11: β  =  0.003, 95% CI: -0.318, 0.325; age 14: β  =  0.156, 95% CI: -0.205, 0.517], on average perform similarly in cognitive ability relative to NC NLBW at all ages, and display higher cognitive scores than NC LBW children until age 7. When we account for family characteristics, differences are largely attenuated and become close to zero at age 14.

Conclusions
Despite the higher incidence of LBW among MAR compared with NC children, they do not seem to experience any disadvantage in their cognitive development compared with naturally conceived children. This finding is likely explained by the fact that, on average, MAR children are born to socioeconomically advantaged parents.
Effective Treatment of Cutaneous Mold Infections by Antimicrobial Blue Light That Is Potentiated by Quinine
Authors: Leanse Leon G , dos Anjos Carolina , Wang Ying , Murray Clinton K , Hooper David C , Dai Tianhong 
Published: January 2021

Abstract

Background
Cutaneous mold infections commonly result from an array of traumatic injuries that involve direct inoculation of contaminated soil into wounds. Here, we explored the use of antimicrobial blue light (aBL; 405 nm wavelength) and the combination of aBL with quinine hydrochloride (aBL + Q-HCL) for the treatment of cutaneous mold infections.

Methods
Efficacy of aBL and aBL + Q-HCL in killing clinically important pathogenic molds (Aspergillus fumigatus, Aspergillus flavus, and Fusarium oxyprorum) was investigated. Ultraperformance liquid chromatography identified and quantified endogenous porphyrins in the mold conidia. Finally, a mouse model of dermabrasion wound infected with a bioluminescent variant of A. fumigatus was developed to investigate the efficacy of aBL in treating cutaneous mold infections.

Results
We demonstrated that mold conidia are tolerant to aBL, but Q-HCL enhances efficacy. Transmission electron microscopy revealed intracellular damage by aBL. aBL + Q-HCL resulted in intracellular and cell wall damage. Porphyrins were observed in all mold strains, with A. fumigatus having the highest concentration. aBL and aBL + Q-HCL effectively reduced the burden of A. fumigatus within an established dermabrasion infection and limited recurrence posttreatment.

Conclusions
aBL and aBL + Q-HCL may offer a novel approach for the treatment of mold infections.
Atezolizumab and nab-Paclitaxel in Advanced Triple-Negative Breast Cancer: Biomarker Evaluation of the IMpassion130 Study
Authors: Emens Leisha A , Molinero Luciana , Loi Sherene , Rugo Hope S , Schneeweiss Andreas , Diéras Véronique , Iwata Hiroji , Barrios Carlos H , Nechaeva Marina , Nguyen-Duc Anh , Chui Stephen Y , Husain Amreen , Winer Eric P , Adams Sylvia , Schmid Peter 
Published: January 2021

Abstract

Background
Understanding the impact of the tumor immune microenvironment and BRCA1/2-related DNA repair deficiencies on the clinical activity of immune checkpoint inhibitors may help optimize both patient and treatment selection in metastatic triple-negative breast cancer. In this substudy from the phase 3 IMpassion130 trial, immune biomarkers and BRCA1/2 alterations were evaluated for association with clinical benefit with atezolizumab and nab-paclitaxel (A+nP) vs placebo and nP in unresectable (P+nP) locally advanced or metastatic triple-negative breast cancer.

Methods
Patients were randomly assigned 1:1 to nab-paclitaxel 100 mg/m2 (days 1, 8, and 15 of a 28-day cycle) and atezolizumab 840 mg every 2 weeks or placebo until progression or toxicity. Progression-free survival and overall survival were evaluated based on programmed death-ligand 1 (PD-L1) expression on immune cells (IC) and tumor cells, intratumoral CD8, stromal tumor-infiltrating lymphocytes, and BRCA1/2 mutations.

Results
PD-L1 IC+ in either primary or metastatic tumor tissue was linked to progression-free survival and overall survival benefit with A+nP. PD-L1 IC+ low (26.9%; 243 of 902 patients) and high (13.9%; 125 of 902 patients) populations had improved outcomes that were comparable. Intratumoral CD8 and stromal tumor-infiltrating lymphocytes positivity (sTIL+) were associated with PD-L1 IC+ status; improved outcomes were observed with A+nP vs P+nP only in CD8+ and sTIL+ patients who were also PD-L1 IC+. BRCA1/2 mutations (occurring in 14.5% [89 of 612 patients]) were not associated with PD-L1 IC status, and PD-L1 IC+ patients benefited from A+nP regardless of BRCA1/2 mutation status.

Conclusions
Although A+nP was more efficacious in patients with richer tumor immune microenvironment, clinical benefit was only observed in patients whose tumors were PD-L1 IC+.
Conducting Pre-deployment Training in Honduras: The 240th Forward Resuscitative Surgical Team Experience
Authors: Huh Jeannie , Brockmeyer Joel R , Bertsch Stephen R , Vanderspurt Cecily , Batig Timothy S , Clemens Michael 
Published: January 2021

ABSTRACT

Introduction
Since January 2002, pre-deployment training of forward resuscitative and surgical units has taken place at the U.S. Army Trauma Training Center (ATTC) in Miami, FL. In June 2019, the 240th Forward Resuscitative Surgical Team (FRST) conducted the first pre-deployment Surgical Readiness Training Exercise (SURGRETE) in San Pedro Sula, Honduras, to allow the team to rehearse in a resource-constrained environment more similar to that expected on deployment. The purpose of this study is to describe and compare the pre-deployment training experiences of the 240th FRST during their SURGRETE in Honduras and ATTC rotation in Miami, FL.

Materials and Methods
A descriptive analysis of prospectively collected data was performed for surgical cases, trauma resuscitations, and nonsurgical procedures by the 240th FRST over a 2-week SURGRETE in Honduras and 2-week ATTC rotation in Miami, FL. Items accomplished within the Individual Critical Task Lists (ICTLs) of key clinical providers on the team (general surgeon, orthopedic surgeon, emergency medicine physician, and Certified Registered Nurse Anesthetist) were identified and compared to those accomplished at the ATTC.

Results
During the SURGRETE in Honduras, 64 surgical cases, 1 trauma resuscitation, 2 Advanced Cardiac Life Support codes, and 213 nonsurgical procedures were performed collectively by the team. During ATTC rotation, the team performed a combined total of 10 surgical cases, 6 trauma resuscitations, and 56 nonsurgical procedures. For each key clinical provider, more of their assigned ICTLs were conducted during the Honduras SURGRETE than during ATTC rotation. The ATTC, however, offered more cases of acute life-threatening trauma.

Conclusion
Appropriately planned SURGRETEs can provide a concentrated case volume in a resource-constrained setting and challenge the team to consider definitive management algorithms. The cases performed may not necessarily reflect the type and acuity of operations performed in a deployed environment; however, they facilitate repetition of basic skills, team cohesion, and cross-training. The SURGRETE experience could be improved by locating a facility with a trauma-dominant patient population that allows increased autonomy of U.S. physicians.
The SAMI Galaxy Survey: the third and final data release
Authors: Croom Scott M , Owers Matt S , Scott Nicholas , Poetrodjojo Henry , Groves Brent , van de Sande Jesse , Barone Tania M , Cortese Luca , D’Eugenio Francesco , Bland-Hawthorn Joss , Bryant Julia , Oh Sree , Brough Sarah , Agostino James , Casura Sarah , Catinella Barbara , Colless Matthew , Cecil Gerald , Davies Roger L , Drinkwater Michael J , Driver Simon P , Ferreras Ignacio , Foster Caroline , Fraser-McKelvie Amelia , Lawrence Jon , Leslie Sarah K , Liske Jochen , López-Sánchez Ángel R , Lorente Nuria P F , McElroy Rebecca , Medling Anne M , Obreschkow Danail , Richards Samuel N , Sharp Rob , Sweet Sarah M , Taranu Dan S , Taylor Edward N , Tescari Edoardo , Thomas Adam D , Tocknell James , Vaughan Sam P 
Published: January 2021

ABSTRACT
We have entered a new era where integral-field spectroscopic surveys of galaxies are sufficiently large to adequately sample large-scale structure over a cosmologically significant volume. This was the primary design goal of the SAMI Galaxy Survey. Here, in Data Release 3, we release data for the full sample of 3068 unique galaxies observed. This includes the SAMI cluster sample of 888 unique galaxies for the first time. For each galaxy, there are two primary spectral cubes covering the blue (370–570 nm) and red (630–740 nm) optical wavelength ranges at spectral resolving power of R = 1808 and 4304, respectively. For each primary cube, we also provide three spatially binned spectral cubes and a set of standardized aperture spectra. For each galaxy, we include complete 2D maps from parametrized fitting to the emission-line and absorption-line spectral data. These maps provide information on the gas ionization and kinematics, stellar kinematics and populations, and more. All data are available online through Australian Astronomical Optics Data Central.
Mock light-cones and theory friendly catalogues for the CANDELS survey
Authors: Somerville Rachel S , Olsen Charlotte , Yung L Y Aaron , Pacifici Camilla , Ferguson Henry C , Behroozi Peter , Osborne Shannon , Wechsler Risa H , Pandya Viraj , Faber Sandra M , Primack Joel R , Dekel Avishai 
Published: January 2021

ABSTRACT
We present mock catalogues created to support the interpretation of the Cosmic Assembly Near-IR Deep Extragalactic Legacy Survey (CANDELS). We extract haloes along past light-cones from the Bolshoi Planck dissipationless N-body simulations and populate these haloes with galaxies using two different independently developed semi-analytic models of galaxy formation and the empirical model universemachine. Our mock catalogues have geometries that encompass the footprints of observations associated with the five CANDELS fields. In order to allow field-to-field variance to be explored, we have created eight realizations of each field. In this paper, we present comparisons with observable global galaxy properties, including counts in observed frame bands, luminosity functions, colour–magnitude distributions and colour–colour distributions. We additionally present comparisons with physical galaxy parameters derived from SED fitting for the CANDELS observations, such as stellar masses and star formation rates. We find relatively good agreement between the model predictions and CANDELS observations for luminosity and stellar mass functions. We find poorer agreement for colours and star formation rate distributions. All of the mock light-cones as well as curated ‘theory friendly’ versions of the observational CANDELS catalogues are made available through a web-based data hub.
CoBiToM project – I. Contact binaries towards merging
Authors: Gazeas K D , Loukaidou G A , Niarchos P G , Palafouta S , Athanasopoulos D , Liakos A , Zola S , Essam A , Hakala P 
Published: January 2021

ABSTRACT
Binary and multiple stellar systems are numerous in our solar neighbourhood with 80 per cent of the solar-type stars being members of systems with high order multiplicity. The Contact Binaries Towards Merging (CoBiToM) Project is a programme that focuses on contact binaries and multiple stellar systems, as a key for understanding stellar nature. The goal is to investigate stellar coalescence and merging processes, as the final state of stellar evolution of low-mass contact binary systems. Obtaining observational data of approximately 100 eclipsing binaries and multiple systems and more than 400 archival systems, the programme aspires to give insights for their physical and orbital parameters and their temporal variations, e.g. the orbital period modulation, spot activity etc. Gravitational phenomena in multiple-star environments will be linked with stellar evolution. A comprehensive analysis will be conducted, in order to investigate the possibility of contact binaries to host planets, as well as the link between inflated hot Jupiters and stellar mergers. The innovation of CoBiToM Project is based on a multimethod approach and a detailed investigation, that will shed light for the first time on the origin of stellar mergers and rapidly rotating stars. In this work, we describe the scientific rationale, the observing facilities to be used and the methods that will be followed to achieve the goals of CoBiToM Project and we present the first results as an example of the current research on evolution of contact binary systems.
Fate of stellar bars in minor merger of galaxies
Authors: Ghosh Soumavo , Saha Kanak , Di Matteo Paola , Combes Francoise 
Published: January 2021

ABSTRACT
Minor merger of galaxies is common during the evolutionary phase of galaxies. Here, we investigate the dynamical impact of a minor merger (mass ratio 1:10) event on the final fate of a stellar bar in the merger remnant. To achieve that, we choose a set of minor merger models from the publicly available GalMer library of galaxy-merger simulations. The models differ in terms of their orbital energy, orientation of the orbital spin vector, and morphology of the satellite galaxy (discy/spheroidal). We demonstrate that the central stellar bar, initially present in the host galaxy, undergoes a transient bar amplification phase after each pericentre passage of the satellite; in concordance with past studies of bar excitation due to tidal encounter. However, once the merger happens, the central stellar bar weakens substantially in the post-merger remnants. The accumulation of satellite’s stars in the central region of merger remnant plays a key role in the bar-weakening process; causing a net increase in the central mass concentration as well as in the specific angular momentum content. We find that the efficiency of mass accumulation from the satellite in the central parts of merger remnants depends on the orbital parameters as well as on the satellite’s morphology. Consequently, different minor merger models display different degrees of bar-weakening event. This demonstrates that minor merger of galaxies is a plausible avenue for bar weakening in disc galaxies.
Discovering strongly lensed QSOs from unresolved light curves
Authors: Shu Yiping , Belokurov Vasily , Evans N Wyn 
Published: January 2021

ABSTRACT
We present a new method of discovering galaxy-scale, strongly lensed QSO systems from unresolved light curves using the autocorrelation function. The method is tested on five rungs of simulated light curves from the Time Delay Challenge 1 that were designed to match the light-curve qualities from existing, ongoing, and forthcoming time-domain surveys such as the Medium Deep Survey of the Panoramic Survey Telescope And Rapid Response System 1, the Zwicky Transient Facility, and the Rubin Observatory Legacy Survey of Space and Time. Among simulated lens systems for which time delays can be successfully measured by current best algorithms, our method achieves an overall true-positive rate of 28–58 per cent for doubly imaged QSOs (doubles) and 36–60 per cent for quadruply imaged QSOs (quads) while maintains ≲10 per cent false-positive rates. We also apply the method to observed light curves of 22 known strongly lensed QSOs, and recover 20 per cent of doubles and 25 per cent of quads. The tests demonstrate the capability of our method for discovering strongly lensed QSOs from major time domain surveys. The performance of our method can be further improved by analysing multifilter light curves and supplementing with morphological, colour, and/or astrometric constraints. More importantly, our method is particularly useful for discovering small-separation strongly lensed QSOs, complementary to traditional imaging-based methods.
Exploring the AGN-merger connection in Arp 245 I: Nuclear star formation and gas outflow in NGC 2992
Authors: Guolo-Pereira Muryel , Ruschel-Dutra Daniel , Storchi-Bergmann Thaisa , Schnorr-Müller Allan , Cid Fernandes Roberto , Couto Guilherme , Dametto Natacha , Hernandez-Jimenez Jose A 
Published: January 2021

ABSTRACT
Galaxy mergers are central to our understanding of galaxy formation, especially within the context of hierarchical models. Besides having a large impact on the star formation history, mergers are also able to influence gas motions at the centre of galaxies and trigger an active galactic nucleus (AGN). In this paper, we present a case study of the Seyfert galaxy NGC 2992, which together with NGC 2993 forms the early-stage merger system Arp 245. Using Gemini Multi-Object Spectrograph integral field unit data from the inner 1.1 kpc of the galaxy, we were able to spatially resolve the stellar populations, the ionization mechanism, and kinematics of ionized gas. From full spectral synthesis, we found that the stellar population is primarily composed by old metal-rich stars (t ≥ 1.4 Gyr, Z ≥ 2.0 Z⊙), with a contribution of at most 30 per cent of the light from a young and metal-poor population (t ≤ 100 Myr, Z ≤ 1.0 Z⊙). We detect H α and H β emission from the broad-line region with a full width at half-maximum of ∼2000 $\rm km\, s^{-1}$. The narrow-line region kinematics presents two main components: one from gas orbiting the galaxy disc and a blueshifted (velocity ≈ −200 $\rm km\, s^{-1}$) outflow, possibly correlated with the radio emission, with mass outflow rate of ∼2 M⊙ yr−1 and a kinematic power of ∼2 × 1040 erg s−1 ($\dot{E}_{\mathrm{ out}}$/Lbol ≈ 0.2 per cent). We also show even though the main ionization mechanism is the AGN radiation, ionization by young stars and shocks may also contribute to the emission line ratios presented in the innermost region of the galaxy.
Ionization degree and magnetic diffusivity in star-forming clouds with different metallicities
Authors: Nakauchi Daisuke , Omukai Kazuyuki , Susa Hajime 
Published: January 2021

ABSTRACT
Magnetic fields play such essential roles in star formation as transporting angular momentum and driving outflows from a star-forming cloud, thereby controlling the formation efficiency of a circumstellar disc and also multiple stellar systems. The coupling of magnetic fields to the gas depends on its ionization degree. We calculate the temperature evolution and ionization degree of a cloud for various metallicities of Z/Z⊙ = 10−6, 10−5, 10−4, 10−3, 10−2, 10−1, and 1. We update the chemical network by reversing all the gas-phase processes and by considering grain-surface chemistry, including grain evaporation, thermal ionization of alkali metals, and thermionic emission from grains. The ionization degree at nH ∼ 1015–1019 cm−3 becomes up to eight orders of magnitude higher than that obtained in the previous model, owing to the thermionic emission and thermal ionization of K and Na, which have been neglected so far. Although magnetic fields dissipate owing to ambipolar diffusion or Ohmic loss at nH &lt; 1015 cm−3, the fields recover strong coupling to the gas at nH ∼ 1015 cm−3, which is lower by a few orders of magnitude compared to the previous work. We develop a reduced chemical network by choosing processes relevant to major coolants and charged species. The reduced network consists of 104 (161) reactions among 28 (38) species in the absence (presence, respectively) of ionization sources. The reduced model includes H2 and HD formation on grain surfaces as well as the depletion of O, C, OH, CO, and H2O on grain surfaces.