bluuebunny/crossref_metadata_2025_split huggingface dataset:
V773 Cas, QS Aql, AND BR Ind: ECLIPSING BINARIES AS PARTS OF MULTIPLE SYSTEMS*
Authors: Zasche P. , Juryšek J. , Nemravová J. , Uhlař R. , Svoboda P. , Wolf M. , Hoňková K. , Mašek M. , Prouza M. , Čechura J. , Korčáková D. , Šlechta M. 
Published: December 2016

ABSTRACT
Eclipsing binaries remain crucial objects for our understanding of the universe. In particular, those that are components of multiple systems can help us solve the problem of the formation of these systems. Analysis of the radial velocities together with the light curve produced for the first time precise physical parameters of the components of the multiple systems V773 Cas, QS Aql, and BR Ind. Their visual orbits were also analyzed, which resulted in slightly improved orbital elements. What is typical for all these systems is that their most dominant source is the third distant component. The system V773 Cas consists of two similar G1-2V stars revolving in a circular orbit and a more distant component of the A3V type. Additionally, the improved value of parallax was calculated to be 17.6 mas. Analysis of QS Aql resulted in the following: the inner eclipsing pair is composed of B6V and F1V stars, and the third component is of about the B6 spectral type. The outer orbit has high eccentricity of about 0.95, and observations near its upcoming periastron passage between the years 2038 and 2040 are of high importance. Also, the parallax of the system was derived to be about 2.89 mas, moving the star much closer to the Sun than originally assumed. The system BR Ind was found to be a quadruple star consisting of two eclipsing K dwarfs orbiting each other with a period of 1.786 days; the distant component is a single-lined spectroscopic binary with an orbital period of about 6 days. Both pairs are moving around each other on their 148 year orbit.
THE LOCAL [C ii] 158 μm EMISSION LINE LUMINOSITY FUNCTION
Authors: Hemmati Shoubaneh , Yan Lin , Diaz-Santos Tanio , Armus Lee , Capak Peter , Faisst Andreas , Masters Daniel 
Published: December 2016

ABSTRACT
We present, for the first time, the local [C ii] 158 μm emission line luminosity function measured using a sample of more than 500 galaxies from the Revised Bright Galaxy Sample. [C ii] luminosities are measured from the Herschel PACS observations of the Luminous Infrared Galaxies (LIRGs) in the Great Observatories All-sky LIRG Survey and estimated for the rest of the sample based on the far-infrared (far-IR) luminosity and color. The sample covers 91.3% of the sky and is complete at S
60 μm > 5.24 Jy. We calculate the completeness as a function of [C ii] line luminosity and distance, based on the far-IR color and flux densities. The [C ii] luminosity function is constrained in the range ∼107–9
L
⊙ from both the 1/V
max and a maximum likelihood methods. The shape of our derived [C ii] emission line luminosity function agrees well with the IR luminosity function. For the CO(1-0) and [C ii] luminosity functions to agree, we propose a varying ratio of [C ii]/CO(1-0) as a function of CO luminosity, with larger ratios for fainter CO luminosities. Limited [C ii] high-redshift observations as well as estimates based on the IR and UV luminosity functions are suggestive of an evolution in the [C ii] luminosity function similar to the evolution trend of the cosmic star formation rate density. Deep surveys using the Atacama Large Millimeter Array with full capability will be able to confirm this prediction.
FORMATION AND ERUPTION OF A FLUX ROPE FROM THE SIGMOID ACTIVE REGION NOAA 11719 AND ASSOCIATED M6.5 FLARE: A MULTI-WAVELENGTH STUDY
Authors: Joshi Bhuwan , Kushwaha Upendra , Veronig Astrid M. , Dhara Sajal Kumar , Shanmugaraju A. , Moon Yong-Jae 
Published: December 2016

ABSTRACT
We investigate the formation, activation, and eruption of a flux rope (FR) from the sigmoid active region NOAA 11719 by analyzing E(UV), X-ray, and radio measurements. During the pre-eruption period of ∼7 hr, the AIA 94 Å images reveal the emergence of a coronal sigmoid through the interaction between two J-shaped bundles of loops, which proceeds with multiple episodes of coronal loop brightenings and significant variations in the magnetic flux through the photosphere. These observations imply that repetitive magnetic reconnections likely play a key role in the formation of the sigmoidal FR in the corona and also contribute toward sustaining the temperature of the FR higher than that of the ambient coronal structures. Notably, the formation of the sigmoid is associated with the fast morphological evolution of an S-shaped filament channel in the chromosphere. The sigmoid activates toward eruption with the ascent of a large FR in the corona, which is preceded by the decrease in photospheric magnetic flux through the core flaring region, suggesting tether-cutting reconnection as a possible triggering mechanism. The FR eruption results in a two-ribbon M6.5 flare with a prolonged rise phase of ∼21 minutes. The flare exhibits significant deviation from the standard flare model in the early rise phase, during which a pair of J-shaped flare ribbons form and apparently exhibit converging motions parallel to the polarity inversion line, which is further confirmed by the motions of hard X-ray footpoint sources. In the later stages, the flare follows the standard flare model and the source region undergoes a complete sigmoid-to-arcade transformation.
THREE-DIMENSIONAL SPONTANEOUS MAGNETIC RECONNECTION
Authors: Beresnyak Andrey 
Published: December 2016

ABSTRACT
Magnetic reconnection is best known from observations of the Sun where it causes solar flares. Observations estimate the reconnection rate as a small, but non-negligible fraction of the Alfvén speed, so-called fast reconnection. Until recently, the prevailing pictures of reconnection were either of resistivity or plasma microscopic effects, which was contradictory to the observed rates. Alternative pictures were either of reconnection due to the stochasticity of magnetic field lines in turbulence or the tearing instability of the thin current sheet. In this paper we simulate long-term three-dimensional nonlinear evolution of a thin, planar current sheet subject to a fast oblique tearing instability using direct numerical simulations of resistive-viscous magnetohydrodynamics. The late-time evolution resembles generic turbulence with a −5/3 power spectrum and scale-dependent anisotropy, so we conclude that the tearing-driven reconnection becomes turbulent reconnection. The turbulence is local in scale, so microscopic diffusivity should not affect large-scale quantities. This is confirmed by convergence of the reconnection rate toward

with increasing Lundquist number. In this spontaneous reconnection, with mean field and without driving, the dissipation rate per unit area also converges to

, and the dimensionless constants 0.015 and 0.006 are governed only by self-driven nonlinear dynamics of the sheared magnetic field. Remarkably, this also means that a thin current sheet has a universal fluid resistance depending only on its length to width ratio and to

.
THE EVOLUTION OF STAR FORMATION ACTIVITY IN CLUSTER GALAXIES OVER 0.15 < z < 1.5
Authors: Wagner Cory R. , Courteau Stéphane , Brodwin Mark , Stanford S. A. , Snyder Gregory F. , Stern Daniel 
Published: December 2016

ABSTRACT
We explore 7.5 billion years of evolution in the star formation activity of massive (

) cluster galaxies using a sample of 25 clusters over

from the Cluster Lensing And Supernova survey with Hubble and 11 clusters over

from the IRAC Shallow Cluster Survey. Galaxy morphologies are determined visually using high-resolution Hubble Space Telescope images. Using the spectral energy distribution fitting code Code Investigating GALaxy Emission, we measure star formation rates, stellar masses, and 4000 Å break strengths. The latter are used to separate quiescent and star-forming galaxies (SFGs). From

to

, the specific star formation rate (sSFR) of cluster SFGs and quiescent galaxies decreases by factors of three and four, respectively. Over the same redshift range, the sSFR of the entire cluster population declines by a factor of 11, from

to

. This strong overall sSFR evolution is driven by the growth of the quiescent population over time; the fraction of quiescent cluster galaxies increases from

to

over z ∼ 1.3 to 0.2. The majority of the growth occurs at

, where the quiescent fraction increases by 0.41. While the sSFR of the majority of star-forming cluster galaxies is at the level of the field, a small subset of cluster SFGs have low field-relative star formation activity, suggestive of long-timescale quenching. The large increase in the fraction of quiescent galaxies above

, coupled with the field-level sSFRs of cluster SFGs, suggests that higher-redshift cluster galaxies are likely being quenched quickly. Assessing those timescales will require more accurate stellar population ages and star formation histories.
Leonardo da Vinci et le savoir des ingénieurs
Authors: Maffioli Cesare S. 
Published: December 2016

Le thème des relations entre le savoir des ingénieurs milanais et celui de Léonard de Vinci est abordé ici en examinant deux projets. L’un est lié à la modélisation des prises d’eau du Naviglio Grande, de façon à en contrôler le débit ; l’autre à la construction d’un canal latéral à l’Adda. Sont également mises ici en relation des études graphiques de Léonard se rapportant aux jets d’eau et ses réflexions d’ordre mathématique et philosophique sur le mouvement des eaux.
Henri de Lacaze-Duthiers and the creation of the Laboratoire de zoologie expérimentale , Roscoff, France
Authors: Dayrat Benoît 
Published: December 2016

Soixante-trois stations marines furent créées dans le monde au xix e siècle, principalement à partir de 1870. L’histoire de la plupart de ces stations est toujours peu connue, malgré quelques exceptions. L’histoire de la création du Laboratoire de zoologie expérimentale à Roscoff (Bretagne, France), maintenant appelé la Station biologique, est présentée ici, en se concentrant sur les cinq premières années (1872-1877). La création de la station est étudiée en relation avec la formation scientifique de son fondateur, Henri de Lacaze-Duthiers ; elle est également replacée dans son contexte historique et scientifique. De 1852 à 1870, Lacaze-Duthiers passa une grande partie de ses étés à faire de la recherche dans un laboratoire improvisé mais fonctionnel qu’il transportait le long des côtes européennes. Une des raisons qui amenèrent Lacaze-Duthiers, en 1872, à ouvrir son laboratoire itinérant à des visiteurs était la nécessité de former une nouvelle génération de zoologistes français. Créé à l’origine comme une station itinérante, le laboratoire de Lacaze-Duthiers fut installé de manière permanente à Roscoff en 1876. L’article montre également que le premier et inhabituel nom de la station, Laboratoire de zoologie expérimentale, fut choisi par Lacaze-Duthiers pour défendre une certaine vision de la zoologie contre l’éloge de la physiologie expérimentale par Claude Bernard. L’influence de la philosophie positive d’Auguste Comte sur l’expérimentation en biologie est discutée. Au-delà de ce débat théorique, il apparaît que Lacaze-Duthiers fut un pionnier pour l’étude des animaux dans leur habitat et que la station de Roscoff joua un rôle essentiel dans le développement de la biologie marine en France : les anciens étudiants de Lacaze-Duthiers créèrent et dirigèrent la plupart des stations marines françaises dans le dernier quart du xix e siècle. Enfin, des questions d’intérêt général quant à l’émergence de stations marines à partir de 1870 sont brièvement discutées.
Seasonal dynamics of a population of the aphid Uroleucon rudbeckiae (Hemiptera: Aphididae): implications for population regulation
Authors: Lamb Robert J. , MacKay Patricia A. 
Published: December 2016

AbstractMany aphid species (Hemiptera: Aphididae) that feed on herbaceous crops exhibit a rise and then sudden decline in abundance. Data from a nine-year study of Uroleucon rudbeckiae (Fitch) on Rudbeckia laciniata Linnaeus (Asteraceae) are used to investigate this pattern of seasonal abundance in a non-agricultural aphid. Aphids on a population of tagged and numbered flower stems were counted weekly. Abundance (mean aphids per stem) was partitioned into prevalence (proportion of stems colonised) and mean intensity (aphids per colonised stem), and also considered as the sum of the aphids in individual colonies. Abundance rose in mid-summer to late summer and then declined, peaking between the end of July and mid-September, earlier in years when the peak was higher. Prevalence showed a more uniform and consistent peak than mean intensity. Most of the 949 colonies were small and short-lived, but a small proportion were long-lived and reached 1000 aphids. Large colonies declined more slowly than moderately-sized colonies. Severe weather, shortening day-length, decline in host quality, density-dependent effects on rate of increase, and emigration failed to explain the population decline. An early rise and later decline in immigration, in conjunction with increasing predation through the summer, were consistent with the decline.
Respiratory Influenza Virus Infection Induces Memory-like Liver NK Cells in Mice
Authors: Li Tingting , Wang Jian , Wang Yanshi , Chen Yongyan , Wei Haiming , Sun Rui , Tian Zhigang 
Published: December 2016

Abstract
Although NK cells are classified as innate immune cells, recent studies have demonstrated the transformation of NK cells into long-lived memory cells that contribute to secondary immune responses in certain mouse models. However, whether NK cells mount an Ag-specific memory response to acute influenza virus infection has not yet been examined. Here, we show that, consistent with previous studies, lung NK cells play an important role in controlling viral proliferation after primary influenza virus infection. However, although lung NK cells display a memory phenotype at the late stage of infection, these cells do not protect mice against secondary influenza virus infection. Interestingly, liver NK cells from influenza virus–infected mice possess a memory phenotype and protect mice against secondary influenza virus infection. Memory-like liver NK cells display a CD49a+DX5− phenotype, and the adoptive transfer of purified liver CD49a+DX5− NK cells into naive mice followed by viral infection results in protective immunity and decreased viral titer. Moreover, we demonstrate that primary inactivated influenza virus induces memory NK cells residing in the liver of Rag1−/− mice. Collectively, these data suggest that liver CD49a+DX5− NK cells remember encountered Ag from influenza virus after primary infection and are more protective upon subsequent infection.
Deletion of Nlrp3 Augments Survival during Polymicrobial Sepsis by Decreasing Autophagy and Enhancing Phagocytosis
Authors: Jin Liliang , Batra Sanjay , Jeyaseelan Samithamby 
Published: December 2016

Abstract
NLRP3 inflammasome is a critical player in innate immunity. Neutrophil recruitment to tissues and effective neutrophil function are critical innate immune mechanisms for bacterial clearance. However, the role of NLRP3 in neutrophil-dependent bacterial clearance in polymicrobial sepsis is unclear. In this study, we evaluated the role of NLRP3 in polymicrobial sepsis induced by cecal ligation and puncture (CLP). Our results showed protection from death in NLRP3-deficient (Nlrp3−/−) and NLRP3 inhibitor–treated wild-type (C57BL/6) mice. Nlrp3−/− and NLRP3 inhibitor–treated mice displayed lower bacterial load but no impairment in neutrophil recruitment to peritoneum. However, neutrophil depletion abrogated protection from death in Nlrp3−/− mice in response to CLP. Intriguingly, following CLP, Nlrp3−/− peritoneal cells (primarily neutrophils) demonstrate decreased autophagy, augmented phagocytosis, and enhanced scavenger receptor (macrophage receptor with collagenous structure) and mannose-binding leptin expression. These findings enhance our understanding of the critical role of NLRP3 in modulating autophagy and phagocytosis in neutrophils and suggest that therapies should be targeted to modulate autophagy and phagocytosis in neutrophils to control bacterial burden in tissues during CLP-induced polymicrobial sepsis.
PATIENTS WITH HAEMOGLOBINOPATHIES AND CHRONIC HEPATITIS C: A REALLY DIFFICULT TO TREAT POPULATION IN 2016?
Authors: Zachou Kalliopi , Arvaniti Pinelopi , Gatselis Nikolaos K. , Azariadis Kalliopi , Papadamou Georgia , Rigopoulou Eirini , Dalekos George N. 
Published: December 2016

Background & objectives: In the past, patients with haemoglobinopathies were at high risk for acquiring hepatitis C virus (HCV) due to multiple transfusions before HCV screening. In these patients the coexistence of haemochromatosis and chronic hepatitis C (CHC) often leads to more severe liver disease. We assessed the HCV prevalence, clinical characteristics and outcome in this setting with particular attention to the response to treatment including therapies with the new direct acting antivirals (DAAs).Methods: The medical records of 81 consecutive patients followed the last 15 years were reviewed retrospectively.Results: 43/81 (53%) patients were anti-HCV positive including 31/43 (72.1%) with CHC (HCV-RNA positive; age 25±7 years; 45.2% with genotype 1b; 19.4% cirrhotics; baseline ferritin 887 ng/ml; range: 81-10.820). Thirty patients received IFN-based therapy with or without ribavirin with sustained virological response (SVR) in 14/30 (46.7%). Eleven patients (9 non-responders to IFN-based therapies, 1 relapser and 1 naïve) received treatment with DAAs (SVR: 100%). 3/11 patients increased their transfusion needs while 1/11 reported mild arthralgias. No drug-drug interactions between DAAs and chelation agents were observed as attested by the stability of ferritin levels during treatment. Conclusions: More than 1/3 of patients with haemoglobinopathies suffered from CHC. Response rates to antiviral treatment seem to be similar to other patients with CHC, while treatment with DAAs was very effective and safe even in difficult to treat patients (most null responders with severe fibrosis) suggesting that this group of HCV patients should no longer be regarded as a difficult to treat.
Mechanism of valve failure and efficacy of reintervention through catheterization in patients with bioprosthetic valves in the pulmonary position
Authors: Callahan Ryan , Bergersen Lisa , Baird Christopher W , Porras Diego , Esch Jesse J , Lock James E , Marshall Audrey C 
Published: December 2016

Background:
Surgical and transcatheter bioprosthetic valves (BPVs) in the pulmonary position in patients with congenital heart disease may ultimately fail and undergo transcatheter reintervention. Angiographic assessment of the mechanism of BPV failure has not been previously described.

Aims:
The aim of this study was to determine the mode of BPV failure (stenosis/regurgitation) requiring transcatheter reintervention and to describe the angiographic characteristics of the failed BPVs and report the types and efficacy of reinterventions.

Materials and Methods:
This is a retrospective single-center review of consecutive patients who previously underwent pulmonary BPV placement (surgical or transcatheter) and subsequently underwent percutaneous reintervention from 2005 to 2014.

Results:
Fifty-five patients with surgical (41) and transcutaneous pulmonary valve (TPV) (14) implantation of BPVs underwent 66 catheter reinterventions. The surgically implanted valves underwent fifty reinterventions for indications including 16 for stenosis, seven for regurgitation, and 27 for both, predominantly associated with leaflet immobility, calcification, and thickening. Among TPVs, pulmonary stenosis (PS) was the exclusive failure mode, mainly due to loss of stent integrity (10) and endocarditis (4). Following reintervention, there was a reduction of right ventricular outflow tract gradient from 43 ± 16 mmHg to 16 ± 10 mmHg (P < 0.001) and RVp/AO ratio from 0.8 ± 0.2 to 0.5 ± 0.2 (P < 0.001). Reintervention with TPV placement was performed in 45 (82%) patients (34 surgical, 11 transcatheter) with no significant postintervention regurgitation or paravalvular leak.

Conclusion:
Failing surgically implanted BPVs demonstrate leaflet calcification, thickness, and immobility leading to PS and/or regurgitation while the mechanism of TPV failure in the short- to mid-term is stenosis, mainly from loss of stent integrity. This can be effectively treated with a catheter-based approach, predominantly with the valve-in-valve technique.
Examining the Existence of Long-run Initial Public Offering (IPO) Underperformance at Three Different Stock Exchange Markets in Japan
Authors: Shimizu Yoshiki , Takei Hideki 
Published: December 2016

This study conducted the examination of the long-run performance of IPO stocks in the Japanese market by measuring the monthly AAR/CAAR of sample IPO stocks. The study did this, so as to investigate whether IPO stocks in the Japanese market outperform in the long-run, as prior research on this phenomenon in the US market (Ritter, 1991; McDonald and Fisher, 1972) had found. The finding is that on the one hand, at TOPIX and TSE-2ND, stocks IPO firms that went public during 2004 to 2011 did not underperform the market in the long-run, as the monthly CAAR of sample IPO stocks on month 36 was not statistically significant. On the other hand, the finding also reveals that at MOTHERS, IPO firms underperformed the market throughout the period between months 2 and 36, and the monthly CAAR of IPO stocks at this market was –30.08 percent on month 36. The implication of this finding for the Efficient Market Hypothesis is that market efficiency held well at TOPIX and TSE-2ND; where during the sampling period abnormal returns could not be achieved and thus the long-run IPO underperformance was unlikely to occur. On the contrary, the departure from market efficiency was observed at MOTHERS: In the long-run, IPO stocks kept experiencing negative abnormal returns, and the existence of the long-run IPO underperformance was found to be significant. Long-run IPO underperformance did not exist, with only one exception: It is only at MOTHERS that the long-run IPO underperformance was observed, whereas at TOPIX and TSE-2ND the phenomenon was not observed.
An Analysis of Customer Perceptions on Services of Electronic Banking in Bangladesh
Authors: Rahman Mohammad Masudur , Rahman Muhammad Ataur , Fahmed Md Neshat 
Published: December 2016

The use of Internet is growing rapidly in all business sectors to maintain effective relationships with customers, suppliers, distributors and many other parties. Banking sector is receiving the benefits of Internet by providing online services to the customers. Online services of banks are very useful for the internal employees and the customers where popularity of banking is increasing gradually. The benefits of E-Banking are enormous for both the financial institutions and bank customers. These benefits are the basis for the growth of the E-Banking. For the bank customers, the biggest benefit of E-Banking is convenience, longer banking hours, flexibility and accessibility. Despite the benefits and advantages of E-Banking, there are drawbacks and weaknesses. In developing this study, a pre-defined methodology and procedure have been followed. The aim of this research is to evaluate customers’ perceptions on the Electronic banking services in Bangladesh.