bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessing appropriateness of pediatric emergency department visits: is it even possible?
Authors: Paul Jessica E. , Zhu Katie Y. , Meckler Garth D. , Park David K. , Doan Quynh 
Published: February 2020

ABSTRACTObjectivesNumerous studies reported on the frequency of, and factors associated with inappropriate or unnecessary emergency department (ED) visits using clinician judgment as the gold standard of appropriateness. This study evaluated the reliability of clinician judgment for assessing appropriateness of pediatric ED visit.MethodsWe conducted a retrospective cohort study comparing 3 clinicians’ determination of ED visit appropriateness with and without guidance from a three-question structured algorithm. We used a cohort of scheduled ED return visits deemed appropriate by the index treating clinician between May 1, 2012, and April 30, 2013. We measured the level of agreement among three clinician investigators with and without use of the structured algorithm.ResultsA total of 207 scheduled ED return visits were reviewed by the primary clinician reviewer who agreed with the index treating clinician for 79/207 visits (38.2%). Among a random subset of 90 return visits reviewed by all three clinicians, agreement was 67% with a Fleiss’ Kappa of 0.30 (0.17–0.44). Using a three-question algorithm based on objective criteria, agreement with the index treating provider increased to 115/207 (55.6%).ConclusionsAlthough an important contributor to pediatric ED overcrowding, unnecessary or inappropriate visits are difficult to identify. We demonstrated poor reliability of clinician judgment to determine appropriateness of ED return visits, likely due to variability in clinical decision-making and risk-tolerance, social and systems factors impacting access and use of health care. We recommend that future studies evaluating the appropriateness of ED use standardized, objective criteria rather than clinician judgment alone.
Neural signatures of promotion versus prevention goal priming: fMRI evidence for distinct cognitive-motivational systems
Authors: Detloff Allison M. , Hariri Ahmad R. , Strauman Timothy J. 
Published: February 2020

AbstractRegulatory focus theory (RFT) postulates two cognitive-motivational systems for personal goal pursuit: the promotion system, which is associated with ideal goals (an individual’s hopes, dreams, and aspirations), and the prevention system, which is associated with ought goals (an individual’s duties, responsibilities, and obligations). The two systems have been studied extensively in behavioral research with reference to differences between promotion and prevention goal pursuit as well as the consequences of perceived attainment versus nonattainment within each system. However, no study has examined the neural correlates of each combination of goal domain and goal attainment status. We used a rapid masked idiographic goal priming paradigm and functional magnetic resonance imaging to present individually selected promotion and prevention goals, which participants had reported previously that they were close to attaining (“match”) or far from attaining (“mismatch”). Across the four priming conditions, significant activations were observed in bilateral insula (Brodmann area (BA) 13) and visual association cortex (BA 18/19). Promotion priming discriminantly engaged left prefrontal cortex (BA 9), whereas prevention priming discriminantly engaged right prefrontal cortex (BA 8/9). Activation in response to promotion goal priming was also correlated with an individual difference measure of perceived success in promotion goal attainment. Our findings extend the construct validity of RFT by showing that the two systems postulated by RFT, under conditions of both attainment and nonattainment, have shared and distinct neural correlates that interface logically with established network models of self-regulatory cognition.
Bayesian Modeling of Wood-Age Offsets in Cremated Bone
Authors: Rose Helene Agerskov , Meadows John , Henriksen Mogens Bo 
Published: February 2020

ABSTRACTExperimental studies have shown that significant carbon exchange occurs between bone-apatite and the pyre atmosphere during cremation, which can cause a calendar date offset between the radiocarbon (14C) event and the date of cremation. There are limited empirical data available to assess the magnitude of such wood-age offsets, but the aim of this paper is to test if they can be modeled statistically. We present new14C dates on modern bone cremated in realistic open-air experiments and on archaeological samples of cremated bone and associated organic material. Experimental results demonstrate a wide range of carbon exchange with a mean of 58.6 ± 14.8%. Archaeological results indicate that the wood-age offsets have an approximately exponential distribution. We test whether the default Charcoal Outlier_Model in OxCal v4.3, developed to reduce the impact of wood-age offsets in dates of charcoal, is appropriate for cremated bone, but find that it slightly underestimates apparent offsets. To counter the intrinsic age of both pyre fuel and unburned bio-apatite, we instead propose a bespoke Cremation Outlier_Model, which combines an exponential distribution of calendar age offsets with a minimum offset, and provides better estimates of the actual dates of cremations.
Maximal functions associated with families of homogeneous curves: Lp bounds for P ≤ 2
Authors: Guo Shaoming , Roos Joris , Seeger Andreas , Yung Po-Lam 
Published: February 2020

AbstractLet M(u), H(u) be the maximal operator and Hilbert transform along the parabola (t, ut2). For U ⊂ (0, ∞) we consider Lp estimates for the maximal functions sup u∈U|M(u)f| and sup u∈U|H(u)f|, when 1 < p ≤ 2. The parabolas can be replaced by more general non-flat homogeneous curves.
On-farm use of a water hardness test kit to assess total blood calcium level in dairy cattle
Authors: Fiore Filippo , Cocco Raffaella , Musina Daniele , Spissu Nicoletta 
Published: February 2020

AbstractIn this Research Communication we report the measurement of total blood calcium concentration with a water hardness test kit (WHTK) in dairy cattle and compare the results to a reference method. The study was carried out on 107 Holstein Friesian cows from three commercial dairy farms in Sardinia (Italy). Blood samples were collected ≤7 d from calving and total serum calcium concentration was determined using a biochemical analyzer and a WHTK. The relationship between the laboratory results and the WHTK results was investigated using Spearman's rank correlation test and simple linear regression was determined. Sensitivity, specificity, negative and positive predictive values, intra and inter-assay coefficient of variation were also calculated. The test values were highly correlated with the laboratory values (R2= 0.72,P< 0.001). Sensitivity and specificity were respectively 88 and 83% for the WHTK and intra and inter-assay coefficients of variation were 7.3 and 11.3% respectively. The WHTK was identified as a potential on-farm tool for monitoring early postpartum Ca concentrations at herd level.
Archaic Sovereignty and Colonial Law: The reintroduction of corporal punishment in colonial India, 1864–1909
Authors: MCCLURE ALASTAIR 
Published: February 2020

AbstractThe judicial and summary punishment of whipping—absent from the Indian Penal Code (IPC) of 1860—was passed into law through Act No. VI of 1864. This legislation, tacked on as an appendage to the IPC, invested the judge with wider discretionary powers to administer violence across Indian society. In this case what emerged was an evolving attempt to enlarge the colonial state's capacity for quotidian violence, targeting certain bodies to reaffirm, manage, and police the social hierarchies upon which colonial sovereignty depended. In the context of a slow imperial movement away from the cast-iron distinctions that had been made between groups in the early nineteenth century—distinctions that had, among other things, supported a legally enforced system of slavery—new methods to mark the value of different bodies were created. The events of the 1850s, in particular the rebellion of 1857–1858, saw the re-emergence of the colonial idea that certain bodies could withstand violence, and that violence itself could be used to create economically productive colonial societies, in debates around penal law and punishment. This article will trace this history through formal legal restrictions and informal legal-cultural practices in relation to corporal punishment in colonial India. Over the course of the period under study, this legislation introduced into law what one official termed ‘the category of the “whippable”’.1Charting the changing shape of this legal category along lines of race, gender, caste, class, and age, the article will argue that a logic of exceptionality, channelled here through the application of judicial violence, attempted to structure and manage Indian society in complicated ways.
Sustainable resource development in the Arctic: Using export trade agreements to restrict environmentally harmful subsidies
Authors: Kobayashi Tomohiko 
Published: February 2020

Abstract
Although the Arctic is emerging as a promising region for energy development and maritime transportation, navigational safety is a persistent and growing concern. What can international trade regulations do to ensure the safe transportation of natural resources on the Northern Sea Route (NSR) and the sustainable development of the Arctic region? Government support is almost inevitable for shipyards, particularly in a highly competitive market. Shipyards build large-scale vessels that navigate the Arctic Ocean. However, excessive export competition will soon lead to over-production and exportation of substandard products. Assuming that even a single incident in the NSR could have a disastrous impact on the flora and fauna of the entire Arctic region, the potential for substandard vessel use represents a significant risk and potential damage to the environment. Although the World Trade Organization (WTO) has detailed rules for this purpose with an effective dispute settlement mechanism, the history of WTO disputes has proven that WTO proceedings sometimes result in unintended consequences. As an alternative option, along with negotiations under the WTO and the Organisation for Economic Cooperation and Development (OECD), this paper suggests the possibility of a critical mass agreement to mutually allow more flexible government support for vessels only if they have superior environmental performance.
Timing dysfunction and cerebellar resting state functional connectivity abnormalities in youth at clinical high-risk for psychosis
Authors: Osborne K. Juston , Damme Katherine S. F. , Gupta Tina , Dean Derek J. , Bernard Jessica A. , Mittal Vijay A. 
Published: February 2020

AbstractBackgroundConsistent with pathophysiological models of psychosis, temporal disturbances in schizophrenia spectrum populations may reflect abnormal cortical (e.g. prefrontal cortex) and subcortical (e.g. striatum) cerebellar connectivity. However, few studies have examined associations between cerebellar connectivity and timing dysfunction in psychosis populations, and none have been conducted in youth at clinical high-risk (CHR) for psychosis. Thus, it is currently unknown if impairments in temporal processes are present in CHR youth or how they may be associated with cerebellar connectivity and worsening of symptoms.MethodsA total of 108 (56 CHR/52 controls) youth were administered an auditory temporal bisection task along with a resting state imaging scan to examine cerebellar resting state connectivity. Positive and negative symptoms at baseline and 12 months later were also quantified.ResultsControlling for alcohol and cannabis use, CHR youth exhibited poorer temporal accuracy compared to controls, and temporal accuracy deficits were associated with abnormal connectivity between the bilateral anterior cerebellum and a right caudate/nucleus accumbens striatal cluster. Poor temporal accuracy accounted for 11% of the variance in worsening of negative symptoms over 12 months.ConclusionsBehavioral findings suggest CHR youth perceive durations of auditory tones as shortened compared to objective time, which may indicate a slower internal clock. Poorer temporal accuracy in CHR youth was associated with abnormalities in brain regions involved in an important cerebellar network implicated in prominent pathophysiological models of psychosis. Lastly, temporal accuracy was associated with worsening of negative symptoms across 12 months, suggesting temporal dysfunction may be sensitive to illness progression.
“The State” of International Studies: Curriculum Design
Authors: Gentry Bobbi , Stojek Szymon 
Published: February 2020

ABSTRACTIn recent decades, institutions across the United States have increasingly emphasized global education as a prerequisite to successful existence in a diverse yet interconnected world. At the same time, there is increasing awareness that the decline in international studies (IS) has resulted in the United States being ill prepared to address complex global challenges. King (2015) lamented that the United States now increasingly lacks regional experts who understand the country-specific challenges and can place them in a larger global strategic context. How the discipline engages students in a global environment matters; however, the field provides little guidance on how to design global studies majors. IS and global studies are apparently both important and neglected. This study examines the curricula for IS, international relations, international affairs, and global studies programs housed in political science. By reviewing more than 100 programs that offer bachelor’s degrees, the authors identify similarities and differences in curricula and present a summative model of a typical IS program housed in political science departments.
Qiuwen(Bibliomancy): Enlivening the Chinese Union Bible
Authors: CHUI-SHAN CHOW CHRISTIE 
Published: February 2020

AbstractThe production of the Union Bible was designed to provide Chinese Protestants with a standardised sacred text to better understand and approach the Christian faith in their native language. While believers regard the translated Scripture as a moral compass that gives spiritual references to everyday challenges, the methods of acquiring these references point to individual creativity and improvisation. When the Union Bible was banned from circulation in the public domain during the Maoist period (1949–1976), Chinese church leaders were jailed and reading the Bible was deemed to be subversive, how did ordinary Protestants draw on their reading of the Union Bible to sustain their religious commitment beyond initial conversion? How did they construct a biblically-centered faith against the socialist indoctrination? This study investigates the centrality of the Union Bible among Chinese Seventh-day Adventists in Wenzhou from the 1950s to 1970s. In particular, it explores how two female Adventists enmeshed the Chinese mode of divination with their daily Bible reading for spiritual insights as they confronted personal and congregational crises in the Maoist era. It argues that this indigenous mode of Bible reading sheds light on the ways in which Chinese Adventists asserted and empowered their scriptural-textual authority, interpretive agency, and personal piety against the state's relentless atheistic propaganda.
SYSTEMATICALLY SHORTCHANGED, YET CARRYING ON
Authors: Evans Linnea A. , Geronimus Arline T. , Caldwell Cleopatra Howard 
Published: February 2020

AbstractSchool reform policies, such as the closure of “low-performing” schools and the competitive introduction of school choice and charters, were presented to communities of color as the fix to educational inequities and the lifeline needed for urban Black students to have a chance at a quality education and social mobility. The ways in which reforms have under-delivered on this promise, and in some cases exacerbated negative academic outcomes, particularly for Black boys, are documented. Yet, research on the experience of Black adolescent girls is sparse. We explore ways that policies aimed at delivering a school choice environment have affected daily life for Black adolescent girls. We examine this issue in the context of the Detroit metropolitan area with Black adolescent girls, reflecting on their high school education experiences that spanned a time-period of rapid transitions in the schooling environment (2014–2016) prompted by a series of school reforms in Michigan. Through in-depth interviews we found that girls sought to invest in their high school education as a path to college; yet the very reforms advanced as ways to clear this path hindered their ability to spend time on the human and social capital activities believed to be important to their academic success and social mobility. Our findings suggest advantages for those students with proximal access to high quality neighborhood schools cannot be replicated in a choice environment. There may also be health consequences of the coping strategies girls are compelled to employ to carry on under adverse educational circumstances.
Improved Hydrometeor Detection Method: An Application to CloudSat
Authors: Hu Xiaoyu , Ge Jinming , Li Yanrong , Marchand Roger , Huang Jianping , Fu Qiang 
Published: February 2020

AbstractClouds play an important role in the climate system and are a principal source of uncertainty in climate projections. CloudSat has provided an unprecedented opportunity to study the vertical structure of clouds, and its observations are being widely used in scientific studies. However, some clouds are not detected or are only weakly detected by CloudSat. In most studies, the weakest detections, specifically those detected by the so‐called along‐track integration scheme, are typically ignored due to the high rate of false detections, namely, a significant probability that a detected cloud is actually a region of increased measurement noise, rather than a true cloud signal. False detections have been reduced in the latest version (called R05 for release 5) of the CloudSat cloud mask product but at a cost of a significant loss in the true weak signals (i.e., a higher false omission rate). In this study, the CloudSat hydrometeor detection algorithm used in R05 is modified by adding a bilateral filter scheme to improve the detection of weak signals. By comparing with the CALIPSO lidar vertical feature mask, it is shown that the new scheme largely reduces the false detection rate compared to the R04 version, while retaining a large fraction of the true weak signals that have been lost in the R05 version. Implementing this scheme in future CloudSat data processing is expected to lead to a better detection of thin clouds.
Effects of an Intrinsic Magnetic Field on Ion Loss From Ancient Mars Based on Multispecies MHD Simulations
Authors: Sakata R. , Seki K. , Sakai S. , Terada N. , Shinagawa H. , Tanaka T. 
Published: February 2020

AbstractIon loss to space has played an important role in atmospheric escape and climate change on Mars because of intense solar activity during a younger, more active phase of the Sun. Although the existence of an intrinsic magnetic field on ancient Mars is also a key factor in ion loss, its effect remains unclear. Based on multispecies magnetohydrodynamics (MHD) simulations, we investigated processes and rates of ion loss from Mars under extreme solar conditions and the existence of a dipole field with different strengths. The effects of a dipole field on ion loss depend on whether the dipolar magnetic pressure is strong enough to sustain the solar wind dynamic pressure. When the dipole field is existent but weak, it facilitates the cusp outflow and increases the loss rates of molecular ions (O2+ and CO2+) by a factor of 6 through the high‐latitude magnetotail. When the dipole field is strong enough, the loss rates of molecular ions are decreased by 2 orders of magnitude, and peaks of the escape flux are located near the equatorial plane due to the magnetic reconnection in the northern‐dusk or southern‐dawn lobe regions. The pickup process on the extended oxygen corona created by the strong EUV flux contributes to the total O+ loss. Therefore, the effects of the dipole field are less pronounced for O+. Under more moderate solar EUV conditions, the effects on O+ loss can be stronger and thus contribute to climate change.
Three‐Dimensional X‐line Spreading in Asymmetric Magnetic Reconnection
Authors: Li Tak Chu , Liu Yi‐Hsin , Hesse Michael , Zou Ying 
Published: February 2020

AbstractThree‐dimensional X‐line spreading is important for the coupling between global dynamics and local kinetic physics of magnetic reconnection. Using large‐scale 3‐D particle‐in‐cell simulations, we investigate the spreading of the X‐line out of the reconnection plane under a strong guide field in asymmetric reconnection. The X‐line spreading speed depends strongly on the equilibrium current sheet thickness. In a simulation with a thick, ion‐scale equilibrium current sheet (CS), the X‐line spreads at the ambient species drift speeds, which are significantly lower than the Alfvén speed based on the guide field
(sub‐Alfvénic spreading). In simulations with a sub‐ion‐scale CS, the X‐line spreads at
instead (Alfvénic spreading). An Alfvénic signal consistent with kinetic Alfvén waves develops and propagates, leading to CS thinning and extending, which ultimately causes reconnection onset. The continuous onset of reconnection along the propagation direction of the signal manifests as Alfvénic X‐line spreading. The strong dependence on the CS thickness of the spreading speeds and the orientation of the X‐line are consistent with the collisionless tearing instability. Our simulations indicate that when the collisionless tearing growth is sufficiently strong in a thinner CS such that
, Alfvénic X‐line spreading can effectively take place. Our results compare favorably with a number of numerical simulations and recent magnetopause observations. An important implication of this work is that the magnetopause CS is typically too thick for the X‐line to spread at the Alfvén speed.
Modeling of Ionospheric Responses to Atmospheric Acoustic and Gravity Waves Driven by the 2015 Nepal 7.8 Gorkha Earthquake
Authors: Inchin P. A. , Snively J. B. , Zettergren M. D. , Komjathy A. , Verkhoglyadova O. P. , Tulasi Ram S. 
Published: February 2020

AbstractNear‐ and far‐field ionospheric responses to atmospheric acoustic and gravity waves (AGWs) generated by surface displacements during the 2015 Nepal
7.8 Gorkha earthquake are simulated. Realistic surface displacements driven by the earthquake are calculated in three‐dimensional forward seismic waves propagation simulation, based on kinematic slip model. They are used to excite AGWs at ground level in the direct numerical simulation of three‐dimensional nonlinear compressible Navier‐Stokes equations with neutral atmosphere model, which is coupled with a two‐dimensional nonlinear multifluid electrodynamic ionospheric model. The importance of incorporating earthquake rupture kinematics for the simulation of realistic coseismic ionospheric disturbances (CIDs) is demonstrated and the possibility of describing faulting mechanisms and surface deformations based on ionospheric observations is discussed in details. Simulation results at the near‐epicentral region are comparable with total electron content (TEC) observations in periods (
3.3 and
6‐10 min for acoustic and gravity waves, respectively), propagation velocities (
0.92 km/s for acoustic waves) and amplitudes (up to
2 TECu). Simulated far‐field CIDs correspond to long‐period (
4 mHz) Rayleigh waves (RWs), propagating with the same phase velocity of
4 km/s. The characteristics of modeled RW‐related ionospheric disturbances differ from previously‐reported observations based on TEC data; possible reasons for these differences are discussed.