bluuebunny/crossref_metadata_2025_split huggingface dataset:
SEROPREVALENCE OF ANTI-MEASLES IGG IN THE POPULATION OF KHARKIV REGION IN 2018-2019
Authors: Yudin Igor , Kuchma Irina , Voliansky Andriy 
Published: February 2020

Aim. The aim of this study was to evaluate herd immunity against measles in different age groups of the Kharkiv region of Ukraine’s population.
Materials and methods. Seroprevalence of specific IgG antibodies was studied among different age groups of the Kharkiv region population from February 2018 to July 2019 by ELISA method.
Results. A number of 6564 sera samples were processed. The overall seropositivity level was 91.3%; negative results were 5.3% and 3.3% equivocal. The highest seropositivity for IgG (> 98%) was in people aged 50 years and older. The lowest seropositivity rates were observed in the cohorts of 20-29 years (87.2%), 30-39 years (86.9%), and 40-49 years (91.1%).
Conclusions. Measles-susceptible populations were identified for which new prevention strategies should be applied in the form of personalized vaccination campaigns to increase herd immunity.
THE STATE OF THE MUCOSAL IMMUNITY OF THE ROGENITAL TRACT IN PATIENTS WITH VARIOUS VARIANTS OF CLINICAL COURSE OF ACUTE UNCOMPLICATED PYELONEPHRITIS
Authors: Rudenko Adel , Pasechnikov Serhii , Mitchenko Mykola , Kornilina Olena 
Published: February 2020

The purpose of the work was to investigate the state of mucosal immunity of the urinary and genital tract in patients with acute uncomplicated pyelonephritis (AUP), depending on the severity of the disease.
Methods. 124 women with AUP and with concomitant chronic inflammatory diseases of the pelvic organs (CIDPO) and 23 clinically healthy women were examined. To assess the clinical picture of AUP was used a division into 3 variants of the clinical course (VCC): mild (n = 105), moderate severity (n = 90) and severe (n = 51). Humoral indicators of mucosal immunity were determined in 64 urine samples and 121 vaginal washings by enzymelinked immunosorbent assay. The levels of immunoglobulins (Ig) A, M, G, secretory IgA (sIgA), lactoferrin (LF) myeloperoxidase (MPO) and lysozyme, C3-component of complement (C3), secretory component, tumor necrosis factor-α (TNF-α) were determined. The concentration of β -defensin-2 was determined in vaginal washings, and the levels of interleukins 10 and 15 – in urine.
Results. A significant increase of the concentration of C3, LF, lysozyme, MPO, sIgA, and TNF-α relative to their reference values was found in the urine of patients with different variants of clinical course of AUP. The smallest median values for LF, lysozyme and MPO were recorded in patients with severe VCC AUP. An increase of TNF-α level was more characteristic for patients with moderate severity and severe VCT. The highest increase of IgA, IgM, IgG levels was found in patients with mild VCT. Significantly elevated levels of MPO, IgA, IgG and TNF-α were detected in vaginal washings in women of all groups relative to reference indicators. The highest (p<0.05) increase in the level of non-specific immunity factors (lysozyme and MPO) was observed in vaginal washings in patients with severe VCT, and specific (IgA, IgM and IgG) – in patients with mild VCT.
Conclusions. In patients with various clinical course of AUP, a significant increase of the humoral factors of nonspecific and specific immunity and cytokines in urine was established relative to reference indicators; to a lesser extent for non-specific indicators of immunity and to a greater extent for TNF-α in patients with severe VCT. Concomitant CIDPO contributed to the greatest increase in washings of MPO and lysozyme levels in patients with severe VCT, and the level of immunoglobulins of all classes – in patients with mild.
Study–test congruence of response levels in item stimulus–response priming
Authors: Gomes Carlos A. , Mayes Andrew 
Published: February 2020

AbstractWe investigated stimulus–response (S–R) memory links during object priming using a binary associative size judgement paradigm. At study, participants decided which of two objects was bigger in real life and, at test, made the same or the reverse judgement. We examined the effects of response congruence on item S–R priming in the associative paradigm. In Experiment 1, a task reversal manipulation had minimal impact on RT priming when classifications were congruent for both recombined objects between study and test. Experiment 2 found that RT priming was more disrupted by classification incongruence of the selected than of the nonselected item alone, with incongruence of the nonselected object having no effect on RTs. Experiment 3, however, found that classification incongruence of both items eliminated RT priming, indicating that a significant effect of classification incongruence for the nonselected item is only evident if both items are classification-incongruent. Finally, across all experiments, we found that accuracy was more sensitive than RTs to decision/action incongruence. We interpret these findings in light of a two-stream account of S–R priming, and suggest a few extensions to account for interactions between S–R links of recombined items.
Acerca de la cerámica Portezuelo del Valle de Catamarca y la Sierra de Ancasti.
Authors: Nazar Domingo , De la Fuente Guillermo 
Published: February 2020

La cerámica Aguada Portezuelo es portadora de características tecnológicas y estilísticas singulares. Investigaciones en sitios Aguada del valle de Catamarca muestran una diversidad de alfarerías asociadas al estilo Aguada Portezuelo Clásico, tal el caso de los sitios Choya 68 y La Viñita. Si bien su presencia parecía estar acotada a la cabecera y sur del valle, prospecciones realizadas en espacios adyacentes de la Sierra de Ancasti, en sus distintos niveles altitudinales (cumbre, ladera y piedemonte), permitieron registrar esta alfarería en densidades significativas. Presentamos un trabajo de carácter preliminar orientado a diferenciar conjuntos cerámicos y proponer reconstrucciones que permitan dar cuenta de la diversidad de vasijas implicadas. Esperamos contar con un marco de referencia para afrontar la marcada variabilidad observada y ayudar a discernir entre elecciones tecnoestilísticas locales y otras vinculadas con variantes del estilo Aguada de otras regiones, de importancia para indagar en las relaciones socio-culturales dentro de la “geografía” Aguada.
Análisis de isótopos estables en cerámica arqueológica del Río Salado bonaerense.
Authors: González M. Isabel , Frère M. Magdalena 
Published: February 2020

A partir de diferentes análisis arqueométricos avanzamos en la comprensión del uso de recipientes de alfarería elaborados por las poblaciones cazadoras-recolectoras-pescadoras de la cuenca inferior del río Salado durante el Holoceno tardío. Desde hace más de 15 años estamos realizando investigaciones de los residuos grasos en las vasijas de cerámica a través de la técnica química de cromatografía gaseosa, análisis la dieta a través de isótopos estables en restos óseos humanos y estudios de la ecología isotópica a partir de recursos arqueológicos de la microrregión. En esta oportunidad integramos estos análisis y sumamos los primeros resultados de los estudios del procesamiento de alimentos sobre la base de estudios de isótopos estables (δ13C y δ15N) realizados en fragmentos de cerámica. Las muestras fueron procesadas en el Instituto Nacional de Geología Isotópica (INGEIS-CONICET-UBA). Los resultados del estudio de isótopos estables mostraron que las vasijas se emplearían para la preparación de distintas recetas con una variedad de ingredientes de recursos acuáticos continentales tales como herbívoros pequeños y/o medianos, peces y vegetales. Hasta el momento el empleo de estas líneas independientes de análisis han fortalecido las inferencias realizadas sobre los recursos preparados y consumidos en la microrregión.
Chanáes: aculturación y continuidad
Authors: Bracco Diego 
Published: February 2020

El objetivo principal de este artículo es reflexionar sobre cambios y continuidades entre los chanáes. Para ello se ha centrado la atención en los últimos años del siglo XVII e inicios del XVIII, principalmente a través de documentación inédita. Se ha excedido ese marco cronológico a la hora de considerar lo que parecen vínculos de larga duración con los charrúas, trayendo a consideración un documento del año 1749. Se destacan aspectos del proceso de aculturación relacionados con navegación, trabajo para la sociedad colonial, equitación y sincretismo religioso.
Pengetahuan Guru Tentang Konstruksi Tes, Penguasaan Materi Pelajaran Sains Dengan Reliabilitas Tes Buatan Guru
Authors: Sulistianingsih Sulistianingsih 
Published: February 2020

Penelitian ini bertujuan untuk mendapatkan data empiris hubungan pengetahuan guru tentang konstruksi tes, penguasaan materi pelajaran sains dengan reliabilitas tes buatan guru . Penelitian dilaksanakan di Sekolah Dasar Negeri di Kabupaten Bekasi. Metode yang digunakan dalam penelitian ini adalah metode deskriptif kuantitatif dengan pendekatan korelasional. Pengambilan sampel dilakukan dengan tehnik Multistage random sampling. Penetapan tehnik ini berdasarkan pertimbangan bahwa sampel yang diharapkan sebagai unit analisis dapat menyebar secara merata agar proposional dan representatitif. Instrumen yang digunakan sebagai alat pengumpul data tentang pengetahuan guru tentang konstruksi tes dan penguasaan materi pelajaran sains menggunakan tes dengan bentuk pilihan ganda dan reliabilitas tes buatan guru menggunakan tehnik dokumentasi. Hasil penelitian menyimpulkan hubungan pengetahuan guru tentang konstruksi tes dan penguasaan materi pelajaran sains secara Bersama – sama dengan reliabilitas tes buatan guru adalah positif dan sangat signifikan.
PENGARUH PENGHINDARAN PAJAK, KEPEMILIKAN INSTITUSIONAL, DAN PROFITABILITAS TERHADAP BIAYA HUTANG (Studi Empiris Pada Perusahaan Manufaktur Yang Terdaftar Di BEI Periode 2011-2015)
Authors: Sherly Elvis Nopriyanti , Fitria Desi 
Published: February 2020

The purpose of this study is to prove the effect of tax avoidance, institutional ownership, and profitability on cost of debt. The sample consisted of 71 manufactured firms in listed in Indonesian Stock Exchange from 2011-2015 by using a purposive sampling method.
The results of the study showed that the tax avoidance had negative effect on cost of debt. The meaning is getting smaller Cash Effective Tax Rate the cost of debt incurred greater. The results of this study also showed that the institutional ownership doesn’t had effect on cost of debt. Furthermore, the result of Return on Assets (ROA) as proxy profitability had a negative effect on cost of debt. The meaning that the higher the profitability of the company then the company will have a high internal funds that can be used in making the use of debt financing is getting smaller which causes the cost of debt also becomes smaller.
Stories of resistance in Greek street Art: A cognitive-semiotic approach
Authors: Stampoulidis Georgios 
Published: February 2020

In line with cognitive semiotics, this paper suggests a synthetic account of the important but controversial notion of narrative (in street art, and more generally): one that distinguishes between three levels: (a) narration, (b) underlying story, and (c) frame-setting. The narrative potential of street art has not yet been considerably studied in order to offer insights into how underlying stories may be reconstructed from the audience and how different semiotic systems contribute to this. The analysis is mainly based on three contemporary street artworks and two political cartoons from the 1940s, involving the same frame-setting, which may be labeled as “Greece vs. Powerful Enemy.” The study is built on fieldwork research that was carried out during several periods in central Athens since 2014. The qualitative analyses with the help of insights from phenomenology show that single static images do not narrate stories themselves (primary narrativity), but rather presuppose such stories, which they can prompt or trigger (secondary narrativity). Notably, the significance of sedimented socio-cultural experience, collective memory and contextual knowledge that the audience must recruit in order to reconstruct the narrative potential through the process of secondary narrativity is stressed.

Author BiographyGeorgios Stampoulidis, Centre for Language and Literature, Division for Cognitive Semiotics, Lund University, Sweden
Georgios Stampoulidis is a PhD candidate at the Division for Cognitive Semiotics at Lund University. His research interests are in the fields of polysemiotic communication and multimodality, narrative and metaphor, and urban creativity. His work focuses on street art as a cross-cultural medium of meaning-making, cultural production and political intervention in urban space, and thus, he has previously conducted fieldwork in Athens, Greece. His most recent publications are “A Cognitive Semiotic Exploration of Metaphors in Greek Street Art” (Cognitive Semiotics, 2019) and “Urban Creativity in Abandoned Places. Xenia Hotels Project, Greece” (Nuart Journal, 2019). Currently, he is research fellow at Urban Creativity Lund and Scandinavian Metaphor networks.
Analytic Planetary Transit Light Curves and Derivatives for Stars with Polynomial Limb Darkening
Authors: Agol Eric , Luger Rodrigo , Foreman-Mackey Daniel 
Published: February 2020

Abstract
We derive analytic, closed-form solutions for the light curve of a planet transiting a star with a limb-darkening profile that is a polynomial function of the stellar elevation, up to an arbitrary integer order. We provide improved analytic expressions for the uniform, linear, and quadratic limb-darkened cases, as well as novel expressions for higher-order integer powers of limb darkening. The formulae are crafted to be numerically stable over the expected range of usage. We additionally present analytic formulae for the partial derivatives of instantaneous flux with respect to the radius ratio, impact parameter, and limb-darkening coefficients. These expressions are rapid to evaluate and compare quite favorably in speed and accuracy to existing transit light-curve codes. We also use these expressions to numerically compute the first partial derivatives of exposure-time-averaged transit light curves with respect to all model parameters. An additional application is modeling eclipsing binary or eclipsing multiple star systems in cases where the stars may be treated as spherically symmetric. We provide code which implements these formulae in C++, Python, IDL, and Julia, with tests and examples of usage (https://github.com/rodluger/Limbdark.jl).
The Hubble Space Telescope Advanced Camera for Surveys Emission Line Survey of Andromeda. I. Classical Be Stars
Authors: Peters M. , Wisniewski J. P. , Williams B. F. , Lomax J. R. , Choi Y. , Durbin M. , Johnson L. C. , Lewis A. R. , Lutz J. , Sigut T. A. A. , Wallach A. , Dalcanton J. J. 
Published: February 2020

Abstract
We present results from a two epoch Hubble Space Telescope Hα emission line survey of the Andromeda galaxy that overlaps the footprint of the Panchromatic Hubble Andromeda Treasury (PHAT) survey. We found 552 (542) classical Be stars and 8429 (8556) normal B-type stars in epoch # 1 (epoch # 2), yielding an overall fractional Be content of 6.15% ± 0.26% (5.96% ± 0.25%). The fractional Be content decreased with spectral subtype from ∼23.6% ± 2.0% (∼23.9% ± 2.0%) for B0-type stars to ∼3.1% ± 0.34% (∼3.4% ± 0.35%) for B8-type stars in epoch # 1 (epoch # 2). We observed a clear population of cluster Be stars at early fractional main-sequence lifetimes, indicating that a subset of Be stars emerge onto the zero-age main sequence as rapid rotators. Be stars are 2.8× rarer in M31 for the earliest subtypes compared to the Small Magellanic Cloud, confirming that the fractional Be content decreases in significantly more metal-rich environments (like the Milky Way and M31). However, M31 does not follow a clear trend of Be fraction decreasing with metallicity compared to the Milky Way, which may reflect that the Be phenomenon is enhanced with evolutionary age. The rate of disk-loss or disk-regeneration episodes we observed, 22% ± 2% yr−1, is similar to that observed for seven other Galactic clusters reported in the literature, assuming these latter transient fractions scale by a linear rate. The similar number of disk-loss events (57) as disk-renewal events (43) was unexpected since disk dissipation timescales can be ∼2× the typical timescales for disk build-up phases.
Average Radial Structures of Gas Convection in the Solar Granulation
Authors: Oba T. , Iida Y. , Shimizu T. 
Published: February 2020

Abstract
Gas convection is observed in the solar photosphere as granulation, i.e., having highly time-dependent cellular patterns, consisting of numerous bright cells called granules and dark surrounding channels called intergranular lanes. Many efforts have been made to characterize the granulation, which may be used as an energy source for various types of dynamical phenomena. Although the horizontal gas flow dynamics in intergranular lanes may play a vital role, they are poorly understood. This is because the Doppler signals can be obtained only at the solar limb, where the signals are severely degraded by a foreshortening effect. To reduce such a degradation, we use Hinode's spectroscopic data, which are free from a seeing-induced image degradation, and improve the image quality by correcting for stray light in the instruments. The data set continuously covers from the solar disk to the limb, providing a multidirectional line-of-sight (LOS) diagnosis against the granulation. The obtained LOS flow-field variation across the disk indicates a horizontal flow speed of 1.8–2.4 km s−1. We also derive the spatial distribution of the horizontal flow speed, which is 1.6 km s−1 in granules and 1.8 km s−1 in intergranular lanes, and where the maximum speed is inside intergranular lanes. This result newly suggests the following sequence of horizontal flow: a hot rising gas parcel is strongly accelerated from the granular center, even beyond the transition from the granules to the intergranular lanes, resulting in the fastest speed inside the intergranular lanes, and the gas may also experience decelerations in the intergranular lane.
Delay Time Distributions of Type Ia Supernovae from Galaxy and Cosmic Star Formation Histories
Authors: Strolger Louis-Gregory , Rodney Steven A. , Pacifici Camilla , Narayan Gautham , Graur Or 
Published: February 2020

Abstract
We present analytical reconstructions of SN Ia delay time distributions (DTDs) by way of two independent methods: by a Markov Chain Monte Carlo best-fit technique comparing the volumetric SN Ia rate history to today’s compendium cosmic star formation history, and second through a maximum likelihood analysis of the star formation rate histories of individual galaxies in the GOODS/CANDELS field, in comparison to their resultant SN Ia yields. We adopt a flexible skew-normal DTD model, which could match a wide range of physically motivated DTD forms. We find a family of solutions that are essentially exponential DTDs, similar in shape to the β ≈ −1 power-law DTDs, but with more delayed events (>1 Gyr in age) than prompt events (<1 Gyr). Comparing these solutions to delay time measures separately derived from field galaxies and galaxy clusters, we find the skew-normal solutions can accommodate both without requiring a different DTD form in different environments. These model fits are generally inconsistent with results from single-degenerate binary population synthesis models, and are seemingly supportive of double-degenerate progenitors for most SN Ia events.
Toward Early-type Eclipsing Binaries as Extragalactic Milestones. II. NLTE Spectral Analysis and Stellar Parameters of the Detached O-type System OGLE-LMC-ECL-06782 in the LMC
Authors: Taormina Mónica , Kudritzki Rolf-Peter , Puls Joachim , Pilecki Bogumił , Sextl Eva , Pietrzyński G. , Urbaneja Miguel A. , Gieren Wolfgang 
Published: February 2020

Abstract
We combine the NLTE spectral analysis of the detached O-type eclipsing binary OGLE-LMC-ECL-06782 with the analysis of the radial velocity curve and light curve to measure an independent distance to the Large Magellanic Cloud (LMC). In our spectral analysis we study composite spectra of the system at quadrature and use the information from radial velocity and light curve about stellar gravities, radii, and component flux ratio to derive effective temperature, reddening, extinction, and intrinsic surface brightness. We obtain a distance modulus to the LMC of m − M = 18.53 ± 0.04 mag. This value is 0.05 mag larger than the precision distance obtained recently from the analysis of a large sample of detached, long period late spectral type eclipsing binaries but agrees within the margin of the uncertainties. We also determine the surface brightnesses of the system components and find good agreement with the published surface brightness–color relationship. A comparison of the observed stellar parameters with the prediction of stellar evolution based on the MESA stellar evolution code shows reasonable agreement, but requires a reduction of the internal angular momentum transport to match the observed rotational velocities.
Detecting and Locating Electromagnetic Counterparts to Gravitational Wave Sources Using Galactic Dust Scattering Halos
Authors: Nederlander Richard , Paerels Frits 
Published: February 2020

Abstract
We discuss a technique for detecting and locating rapid transient electromagnetic counterparts to gravitational wave sources that affords a reprieve of several hours after the gravitational wave event. The technique relies on detecting a scattering halo produced if X-rays emitted at the gravitational wave event scatter off Galactic dust clouds. The travel-time delay of these scattered photons makes them detectable up to several hours after the prompt event; the location of the gravitational wave source will be at the geometric center of the halo, which can be determined with precision sufficient to allow the host galaxy to be identified.
Althusser, le marxisme latino-américain et la politique contemporaine : notes pour une rencontre
Authors: Cortés Martín , Sibertin-Blanc Guillaume 
Published: February 2020

Cet article explore l’affinité, que les concepts de surdétermination et de conjoncture permettent d’analyser, entre le travail d’Althusser sur la question de la temporalité et les approches de trois figures clés du marxisme latino-américain des années 1970 : les Argentins José Aricó et Juan Carlos Portantiero, et le Bolivien René Zavaleta Mercado. Il défend l’hypothèse que le point de vue de la périphérie rend particulièrement aiguës les implications théoriques et politiques de la problématisation althussérienne de la conjoncture, comme rencontre de temporalités asynchrones et configuration singulière d’une « exception sans norme ». On s’interroge pour finir sur l’actualité que conservent ces montages conceptuels pour penser certains traits de la politique latino-américaine contemporaine.
Lire Le Capital depuis les marges : notes sur la logique du développement inégal
Authors: Bosteels Bruno , Sibertin-Blanc Guillaume 
Published: February 2020

Partant d’un panorama indicatif des lectures latino-américaines d’Althusser, cet article tente de cerner la source des interrogations de Che Guevara suscitées par les énoncés de Pour Marx érigeant la thèse du développement inégal en « loi primitive » qui ne « souffre aucune exception », avant d’amplifier les implications contradictoires d’une tendance à « transcendantaliser » le principe d’inégalité comme « décalage » inhérent à toute structure dans Lire le Capital : Althusser préfigure par là des gestes qui seront bientôt reconnus comme caractéristiques des « philosophies de la différence » poststructuralistes, mais au prix d’un développement inégal interne à sa pensée même entre refonte philosophique du matérialisme dialectique et relance – annoncée mais sans cesse différée – du matérialisme historique.