bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of Fipronil Susceptibility in the Lone Star Tick (Acari: Ixodidae)
Authors: Kaplan Zachary D , Richardson Elise A , Kaufman Phillip E , Weeks Emma N I 
Published: February 2020

Abstract
The lone star tick, Amblyomma americanum Linnaeus, is ubiquitously present in the southeastern United States and will readily parasitize humans and companion animals. Fipronil is the active ingredient in several topically applied products used to manage ticks and fleas on companion animals. Reducing ectoparasite infestations on companion animals decreases the risk that pathogens vectored by these pests are transmitted to these animals and their owners. However, dependence on acaricides can promote the development of resistance. In this study, the Food and Agriculture Organization of the United Nations larval packet test was used to determine the lethal concentration (LC) values and discriminating concentration (DC) for fipronil in the lone star tick. The DC was calculated as 0.02080%. The low magnitude of the DC value suggests that fipronil is an effective active ingredient for A. americanum management. With the LC and DC values determined, emergent resistance can be monitored, potentially allowing for intervention should tolerance develop in A. americanum populations that are in frequent contact with humans and their companion animals.
Implementing machine learning methods for imaging flow cytometry
Authors: Ota Sadao , Sato Issei , Horisaki Ryoichi 
Published: February 2020

AbstractIn this review, we focus on the applications of machine learning methods for analyzing image data acquired in imaging flow cytometry technologies. We propose that the analysis approaches can be categorized into two groups based on the type of data, raw imaging signals or features explicitly extracted from images, being analyzed by a trained model. We hope that this categorization is helpful for understanding uniqueness, differences and opportunities when the machine learning-based analysis is implemented in recently developed ‘imaging’ cell sorters.
Predictors of Quality of Life Following Cognitive Processing Therapy Among Women and Men With Post-Traumatic Stress Disorder
Authors: Glassman Lisa H , Mackintosh Margaret-Anne , Wells Stephanie Y , Wickramasinghe Induni , Walter Kristen H , Morland Leslie A 
Published: February 2020

Abstract

Introduction
The effect of evidence-based post-traumatic stress disorder (PTSD) treatments on quality of life (QOL) is not well understood. In light of mixed findings on QOL after PTSD interventions, little is known about why some individuals experience functional and QOL improvements while others do not. This study examined treatment-related changes in depression, anger, and PTSD following cognitive processing therapy (CPT) as potential predictors of QOL change.

Materials and Methods
Data from two randomized controlled trials, one examining CPT among female civilians and veterans (women’s study NCT02362477; n = 126) and the other on CPT delivered to male veterans (men’s study NCT00879255; n = 125), were used to test study aims. Linear mixed modeling examined changes in depression, anger, and PTSD as predictors of post-treatment QOL while controlling for baseline QOL. The VA Pacific Island Health Care System’s Institutional Review Board approved all study procedures.

Results
Among women, reductions in depression from pre- to post-treatment had the strongest predictive value of post-treatment QOL (B = −1.15, 95% confidence interval (−1.71, −0.60), t = −4.07, P &lt; .001). For men, reductions in trait anger from pre- to post-treatment predicted post-treatment QOL (B = −0.55, 95% confidence interval (−0.90, −0.19), t = −3.00, P = .003).

Conclusions
Improvements in QOL may be predicted by different symptoms for men and women following evidence-based PTSD treatment. Our findings suggest that change in depression symptoms is an important predictor of post-treatment QOL among women, while anger symptoms are more influential for men. QOL and functioning is underresearched within the context of PTSD treatment, and this study suggests that these domains should be examined within the context of gender.
Kinematics of simulated galaxies II: Probing the stellar kinematics of galaxies out to large radii
Authors: Schulze Felix , Remus Rhea-Silvia , Dolag Klaus , Bellstedt Sabine , Burkert Andreas , Forbes Duncan A 
Published: February 2020

ABSTRACT
We investigate the stellar kinematics of a sample of galaxies extracted from the hydrodynamic cosmological Magneticum Pathfinder simulations out to five half-mass radii. We construct differential radial stellar spin profiles quantified by the observationally widely used λ and the closely related (V/σ) parameters. We find three characteristic profile shapes: profiles exhibiting a (i) peak within 2.5 half-mass radii and a subsequent decrease; (ii) continuous increase that plateaus at larger radii typically with a high amplitude; (iii) completely flat behaviour typically with low amplitude, in agreement with observations. This shows that the kinematic state of the stellar component can vary significantly with radius, suggesting a distinct interplay between in-situ star formation and ex-situ accretion of stars. Following the evolution of our sample through time, we provide evidence that the accretion history of galaxies with decreasing profiles is dominated by the anisotropic accretion of low-mass satellites that get disrupted beyond ∼2.0 half-mass radii, building up a stellar halo with non-ordered motion while maintaining the central rotation already present at z = 2. In fact, at z = 2 decreasing profiles are the predominant profile class. Hence, we can predict a distinct formation pathway for galaxies with a decreasing profile and show that the centre resembles an old embedded disc. Furthermore, we show that the radius of the kinematic transition provides a good estimation for the transition radius from in-situ stars in the centre to accreted stars in the halo.
H2 emission in the low-ionization structures of the planetary nebulae NGC 7009 and NGC 6543
Authors: Akras Stavros , Gonçalves Denise R , Ramos-Larios Gerardo , Aleman Isabel 
Published: February 2020

ABSTRACT
Despite the many studies in the last decades, the low-ionization structures (LISs) of planetary nebulae (PNe) still hold several mysteries. Recent imaging surveys have demonstrated that LISs are composed of molecular gas. Here, we report H2 emission in the LISs of NGC 7009 and NGC 6543 by means of very deep narrow-band H2 images taken with NIRI@Gemini. The surface brightness of the H2 1-0 S(1) line is estimated to be (0.46–2.9)× 10−4 erg s−1 cm−2 sr−1 in NGC 7009 and (0.29–0.48)× 10−4 erg s−1 cm−2 sr−1 in NGC 6543, with signal-to-noise ratios of 10–42 and 3–4, respectively. These findings provide further confirmation of hidden H2 gas in LISs. The emission is discussed in terms of the recent proposed diagnostic diagram R(H2) = H2 1-0 S(1)/H2 2-1 S(1) versus R(Brγ) = H2 1-0 S(1)/Brγ, which was suggested to trace the mechanism responsible for the H2 excitation. Comparing our observations to shock and ultraviolet (UV) molecular excitation models, as well as a number of observations compiled from the literature showed that we cannot conclude for either UV or shocks as the mechanism behind the molecular emission.
The ASAS-SN catalogue of variable stars – VII. Contact binaries are different above and below the Kraft break
Authors: Jayasinghe T , Stanek K Z , Kochanek C S , Shappee B J , Pinsonneault M H , Holoien T W-S , Thompson Todd A , Prieto J L , Pawlak M , Pejcha O , Pojmanski G , Otero S , Hurst N , Will D 
Published: February 2020

ABSTRACT
We characterize ${\sim } 71\, 200$ W Ursae Majoris (UMa) type (EW) contact binaries, including ${\sim } 12\, 600$ new discoveries, using All-Sky Automated Survey for SuperNovae (ASAN-SN)V-band all-sky light curves along with archival data from Gaia, 2MASS, AllWISE, LAMOST, GALAH, RAVE, and APOGEE. There is a clean break in the EW period–luminosity relation at $\rm \log (\it P/{\rm d})\,{\simeq }\,{\rm -0.30}$, separating the longer period, early-type EW binaries from the shorter period, late-type systems. The two populations are even more cleanly separated in the space of period and effective temperature, by $T_{\rm eff}=6710\,{\rm K}-1760\,{\rm K}\, \log (P/0.5\,{\rm d})$. Early-type and late-type EW binaries follow opposite trends in Teff with orbital period. For longer periods, early-type EW binaries are cooler, while late-type systems are hotter. We derive period–luminosity relationships in the WJK, V, Gaia DR2 G, J, H, Ks, and W1 bands for the late-type and early-type EW binaries separated by both period and effective temperature, and by period alone. The dichotomy of contact binaries is almost certainly related to the Kraft break and the related changes in envelope structure, winds, and angular momentum loss.
Mass distributions of meteorites
Authors: Betzler Alberto S , Borges Ernesto P 
Published: February 2020

ABSTRACTFor at least five decades, the study of the mass distribution of meteorites has been carried out. This study aims to obtain the flux of material that comes to the Earth’s surface. For this, the observational data were modelled statistical distributions of the most varied types, derived from Gibbs entropy. However, it appears that the fragmentation process is probably complex in nature. Given this particularity, we model the mass distribution of meteorites using the q-exponential function, derived from Tsallis non-extensive statistical mechanics. This distribution is capable of modelling the entire observed spectrum of meteorite mass regardless of whether the specimens originate from the fragmentation of a single meteorite, belong to the same mineralogical group or type, or when are separated by collection sites on the Earth’s surface. We suggest that most meteorite samples are incomplete in certain mass ranges due to the action of the so-called gathering bias.
A unified framework for 21 cm tomography sample generation and parameter inference with progressively growing GANs
Authors: List Florian , Lewis Geraint F 
Published: February 2020

ABSTRACT
Creating a data base of 21 cm brightness temperature signals from the Epoch of Reionization (EoR) for an array of reionization histories is a complex and computationally expensive task, given the range of astrophysical processes involved and the possibly high-dimensional parameter space that is to be probed. We utilize a specific type of neural network, a progressively growing generative adversarial network (PGGAN), to produce realistic tomography images of the 21 cm brightness temperature during the EoR, covering a continuous three-dimensional parameter space that models varying X-ray emissivity, Lyman band emissivity, and ratio between hard and soft X-rays. The GPU-trained network generates new samples at a resolution of ∼3 arcmin in a second (on a laptop CPU), and the resulting global 21 cm signal, power spectrum, and pixel distribution function agree well with those of the training data, taken from the 21SSD catalogue (Semelin et al.). Finally, we showcase how a trained PGGAN can be leveraged for the converse task of inferring parameters from 21 cm tomography samples via Approximate Bayesian Computation.
Self-consistent proto-globular cluster formation in cosmological simulations of high-redshift galaxies
Authors: Ma Xiangcheng , Grudić Michael Y , Quataert Eliot , Hopkins Philip F , Faucher-Giguère Claude-André , Boylan-Kolchin Michael , Wetzel Andrew , Kim Ji-hoon , Murray Norman , Kereš Dušan 
Published: February 2020

ABSTRACT
We report the formation of bound star clusters in a sample of high-resolution cosmological zoom-in simulations of z ≥ 5 galaxies from the Feedback In Realistic Environments project. We find that bound clusters preferentially form in high-pressure clouds with gas surface densities over $10^4\, \mathrm{ M}_{\odot }\, {\rm pc}^{-2}$, where the cloud-scale star formation efficiency is near unity and young stars born in these regions are gravitationally bound at birth. These high-pressure clouds are compressed by feedback-driven winds and/or collisions of smaller clouds/gas streams in highly gas-rich, turbulent environments. The newly formed clusters follow a power-law mass function of dN/dM ∼ M−2. The cluster formation efficiency is similar across galaxies with stellar masses of ∼107–$10^{10}\, \mathrm{ M}_{\odot }$ at z ≥ 5. The age spread of cluster stars is typically a few Myr and increases with cluster mass. The metallicity dispersion of cluster members is ∼0.08 dex in $\rm [Z/H]$ and does not depend on cluster mass significantly. Our findings support the scenario that present-day old globular clusters (GCs) were formed during relatively normal star formation in high-redshift galaxies. Simulations with a stricter/looser star formation model form a factor of a few more/fewer bound clusters per stellar mass formed, while the shape of the mass function is unchanged. Simulations with a lower local star formation efficiency form more stars in bound clusters. The simulated clusters are larger than observed GCs due to finite resolution. Our simulations are among the first cosmological simulations that form bound clusters self-consistently in a wide range of high-redshift galaxies.
Ionization bias and the ghost proximity effect near z ≳ 6 quasars in the shadow of proximate absorption systems
Authors: Davies Frederick B 
Published: February 2020

ABSTRACT
The larger-than-expected scatter in the opacity of the Ly α forest suggests that the metagalactic ionizing background is strongly fluctuating at $z$ &gt; 5.5. Models for ionizing background fluctuations predict a strong positive bias on large scales, so the environments of massive $\text{$\gt$} 10^{12}\, {\rm M}_\odot$ dark matter haloes, e.g. $z$ ∼ 6 quasar hosts, would be ideal laboratories to constrain the sources of ionizing photons. While the quasars themselves should overwhelm any plausible ionizing photon contribution from neighbouring galaxies, proximate damped Ly α absorbers (DLAs) have recently been discovered in the foreground of $z$ ∼ 6 quasars, and the Ly α forest in the shadow of these DLAs could probe the local ionization environment. Using Gpc3 simulations of $z$ = 6 ionizing background fluctuations, we show that while the Ly α forest signal from ionization bias around a quasar host halo should be strong, it is likely suppressed by the associated intergalactic matter overdensity. We also show that the quasar itself may still overwhelm the clustering signal via a ‘ghost’ of the proximity effect from the quasar radiation, causing a large-scale bias in the ionizing photon mean free path. This ghost proximity effect is sensitive to the lifetime and geometry of quasar emission, potentially unlocking a new avenue for constraining these fundamental quasar properties. Finally, we present observations of a $z$ ∼ 6 quasar with a proximate DLA, which shows a strong excess in Ly α forest transmission at the predicted location of the ghost proximity effect.
Microfluidic automated plasmid library enrichment for biosynthetic gene cluster discovery
Authors: Xu Peng , Modavi Cyrus , Demaree Benjamin , Twigg Frederick , Liang Benjamin , Sun Chen , Zhang Wenjun , Abate Adam R 
Published: February 2020

Abstract
Microbial biosynthetic gene clusters are a valuable source of bioactive molecules. However, because they typically represent a small fraction of genomic material in most metagenomic samples, it remains challenging to deeply sequence them. We present an approach to isolate and sequence gene clusters in metagenomic samples using microfluidic automated plasmid library enrichment. Our approach provides deep coverage of the target gene cluster, facilitating reassembly. We demonstrate the approach by isolating and sequencing type I polyketide synthase gene clusters from an Antarctic soil metagenome. Our method promotes the discovery of functional-related genes and biosynthetic pathways.
A new look at historical monetary policy (and the great inflation) through the lens of a persistence-dependent policy rule
Authors: Ashley Richard , Tsang Kwok Ping , Verbrugge Randal 
Published: February 2020

AbstractThe origins of the Great Inflation, a central 20th-century U.S. macroeconomic event, remain contested. Prominent explanations are poor inflation forecasts or inaccurate output gap measurement. An alternative view is that the Federal Open Market Committee (FOMC) was unwilling to fight inflation, perhaps due to political pressures. Here, we sort this out via a novel econometric approach, disaggregating the real-time unemployment and inflation time series entering the FOMC historical policy reaction-function into persistence components, using one-sided Fourier filtering; this implicitly estimates the unemployment gap in actual use. We find compelling evidence for (economically interpretable) persistence-dependence in both variables. Furthermore, our results support the “unwilling to fight” view: the FOMC’s unemployment gap responses were essentially unchanged pre- and post-Volcker, while its inflation responses sharpened markedly starting with Volcker.
The Dead Sea Scrolls, Pseudepigrapha, and Expansions of Scripture
Authors: Jillions John A. 
Published: February 2020

Abstract
The sources presented here reflect voices from various creative strands of Jewish community life between 700 bce and 135 ce. All of them in varying ways approach divine guidance through communal rereading, reinterpretation, and expansion of scripture. The Qumran community (which produced the Dead Sea Scrolls) took a hierarchical view of guidance, placing discernment largely in the hands of the elders. Pseudepigrapha and expansions of scripture, like the Prayer of Manasseh, used the name of a biblical figure to expand on what the biblical text itself may have mentioned only in passing. Jubilees elaborates on Abram’s crucial but brief encounter with God in Genesis 12 and depicts it as a response to Abram’s request for divine guidance. The Sibylline Oracles (as distinct from the Roman Sibylline Books) attribute Jewish oracles to the pagan Sibyl. 3 Maccabees weaves together human initiative with divine guidance to the Jewish community in Alexandria.
State-Sanctioned Violence
Authors: Delgado Melvin 
Published: February 2020

Abstract
The role and function of the state is not to harm its residents but rather to help them develop their potential and meet their basic human needs. The importance of violence is well attested to by Oxford University Press devoting a book series on interpersonal violence. However, state-sanctioned violence in the United States is not, for example. The saying “The truth will set you free, but first it will make you miserable” comes to mind in writing this book because it holds personal meaning that goes beyond being a social worker and a person of color (Latinx). The basic premise and interconnectedness of the themes in this book were reinforced and expanded in the course of writing. Bonilla-Silva (2019, p. 14) states, “We are living, once again, in strange racial times,” which, indeed, is true. The hope is that readers appreciate the numerous threads between themes, some of which have not gotten close attention by the general public and scholars. Harris and Hodge (2017), for example, adeptly interconnect environmental, food, and school-to-pipeline social injustice issues among urban youth of color, illustrating how oppressions converge. Future scholarship will connect even more dots to create the mosaic that constitutes state-sanctioned violence. It was a relief to see the extent of scholarship on the topics addressed in this book. Bringing together this literature, public reports, and the experiences from those currently dealing with state-sponsored violence allowed for a consistent narrative to unfold. Writing a book is always a process of discovery. There is a body of scholarship to buttress the central arguments of this book, but no such literature addressing the structural interconnectedness of the types of state-sanctioned violence for social work. The sociopolitical, interactional consequences of place, time, people, and events set a social-political context that is understood by social workers and makes this mission distinctive because of this grounding. Viewing state-sanctioned violence, including its laws and policies, within this prism allows the development of a vision or charge that can unite people, as well as a deeper commitment to working with oppressed groups in seeking social justice. Social work is not exempt from having a role in state-sanctioned violence. This book only delves into the profession’s history and evolution to appreciate how it has reinforced a state-sanctioned violence agenda, wittingly or unwittingly. Practice is never apolitical; it either supports a state-sanctioned violence narrative or resists it with counternarratives. Social work must be vigilant of how it supports state violence.
Setting the Groundwork
Authors: Delgado Melvin 
Published: February 2020

Abstract
This book illustrates (conceptually, case examples, and statistically) how state-sanctioned violence is a modern-day manifestation with deep historical roots of government serving as a principal contributor to the persistence and reproduction of racism, as it has since the founding of the nation, illustrating how state power has carried out a violence agenda targeting communities of color for centuries. The basic premise and interconnectedness of the state action violence themes in this book were reinforced and expanded in the course of writing. Bonilla-Silva (2019, p. 14) states, “We are living, once again, in strange racial times,” and yes, indeed, we are. My hope is that readers appreciate the numerous threads between themes, some of which have not gotten close attention by the general public and scholars. Harris and Hodge (2017), for example, adeptly interconnect environmental, food, and school-to-pipeline justice among urban youth of color, illustrating how oppressions converge. Future scholarship will connect even more dots to create the mosaic that constitutes state-sanctioned violence.
State-Sanctioned Violence
Authors: Delgado Melvin 
Published: February 2020

Abstract
This chapter reintroduces intersectionality and introduces an intracategorical approach, a lens many readers may be unfamiliar with but one enhancing the saliency of intersectionality and state-sanctioned violence with a specific focus on cities and people of color. When youth are introduced, the unfairness of these forces takes on greater importance. This chapter’s central goal is not to delve into great detail about these concepts, including historical origins and evolution, which are deeply grounded in feminist theory. The goal is to examine intersectionality (including intracategorical intersectionality) and its relationship to state-sponsored violence. This enriches our understanding of a state violence paradigm and further grounds it conceptually and philosophically within our profession’s social justice mission and values.
Education and State-Sanctioned Violence
Authors: Delgado Melvin 
Published: February 2020

Abstract
The importance of education in a democracy can be measured from multiple perspectives, with those failing representing an opportunity lost with immediate and long-term ramifications. In global and technologically driven economies, education has ascended in significance to a point where a high school diploma is no longer a ticket to the middle class. Public education is a linchpin in the ultimate career success of students, with much expected of a system occupying such a prominent and extended period in their lives, daily and during key developmental phases. This chapter covers the usual urban public education and communities of color terrain. However, two pipelines will draw particular attention—school-to-prison and school-to-military—with an extension to include prison, too, highlighting state-sanctioned violence.