bluuebunny/crossref_metadata_2025_split huggingface dataset:
Consumer conviction and commitment: An appraisal‐based framework for attitude certainty
Authors: Rucker Derek D. , Tormala Zakary L. , Petty Richard E. , Briñol Pablo 
Published: July 2013

AbstractThis paper explores consumers' commitment to and conviction about their beliefs in the form of attitude certainty. Based on a review of past research, we present a new framework for understanding attitude certainty and how consumers' attitude certainty is shaped by their resisting or yielding to persuasive messages, or even by their reflections on the evidence supporting their attitudes. We propose that attitude certainty is formed and changed largely through an attribution‐based reasoning process linked to a finite set of distinct appraisals. Our framework is used to both organize past research and offer guidance for future research endeavors. In addition, we distinguish our framework of appraisal‐based attitude certainty from past models in attitudes and persuasion research that have referenced or taken note of the attitude certainty construct. Implications and future directions for the study of consumer behavior are discussed.
National survey of catheter ablation for atrial fibrillation: The Japanese catheter ablation registry of atrial fibrillation (J‐CARAF)
Authors: Inoue Koichi , Murakawa Yuji , Nogami Akihiko , Shoda Morio , Naito Shigeto , Kumagai Koichiro , Miyauchi Yasushi , Yamane Teiichi , Morita Norishige , Mitamura Hideo , Okumura Ken ,   on behalf of the Japanese Heart Rhythm Society Members
Published: July 2013

AbstractTo assess the current status of atrial fibrillation (AF) ablation in Japan, the Japanese Heart Rhythm Society (JHRS) instituted a national registry, the Japanese Catheter Ablation Registry of AF (J‐CARAF).MethodsUsing an online questionnaire, the JHRS invited electrophysiology centers in Japan to voluntarily and retrospectively register data regarding the AF ablation procedures performed in September, 2011.ResultsA total of 128 centers submitted data regarding AF ablation procedures in 932 patients (age 62.1±10.4 years; male 76.8%; paroxysmal AF 65.7%, CHADS2 score 1.0±1.0). The majority received oral anticoagulant therapy during and following the procedure (68.9% and 97.5%, respectively). Pulmonary vein isolation (PVI) was performed in 97.5% of the patients; ipsilateral encircling PVI was the preferred technique (79.7%). Three‐dimensional (3D) mapping systems and irrigated‐tip catheters were used in 94.8% and 87.7% of the procedures, respectively. Ablation methods other than PVI were performed in 78.8% of all the patients and 73.5% of the patients with paroxysmal AF. Acute complications were reported in 6.2% of the patients, but no early deaths were recorded.ConclusionsIpsilateral encircling PVI, using 3D mapping and irrigated‐tip catheters, is the standard AF ablation method in Japan. However, adjunctive ablations were performed frequently, even in patients with paroxysmal AF.
Analysing the mutational status of PIK3CA in circulating tumor cells from metastatic breast cancer patients
Authors: Schneck Helen , Blassl Christina , Meier-Stiegen Franziska , Neves Rui Pedro , Janni Wolfgang , Fehm Tanja , Neubauer Hans 
Published: July 2013

The frequently altered phosphatidylinositol‐3‐kinase (PI3K)/Akt signaling pathway is involved in the regulation of cellular processes required for breast carcinogenesis. The aim of the project was to develop a method to identify hotspot mutations in the PIK3CA gene in circulating tumor cells (CTCs) of metastatic breast cancer (metBC) patients.From 44 enrolled CTC‐positive metBC patients a total number of 57 peripheral blood samples were analysed by CellSearch®. Genomic DNA of enriched CTCs was isolated, amplified and analyzed for PIK3CA mutations in exons 9 and 20 which lead to E542K, E545K or H1047R amino acid changes and result in increased PI3K activity. The mutations were detected by using SNaPshot‐methodology comprising PCR amplification and single nucleotide primer extension.SNaPshot analysis was established using genomic DNA from different breast cancer cell lines and then successfully transferred to investigate blood samples and single cells. Overall, twelve hotspot mutations in either exon 9/E545K (6/12, 50%) or exon 20/H1047R (6/12, 50%) could be determined within 9 out of 57 (15.8%) blood samples from 7 out of 44 (15.9%) patients; CTC counts ranged from 1 to 9748. PIK3CA variants E542K, E545G and E545A were not detected.Analysing the PIK3CA genotype of CTCs has clinical relevance with respect to drug resistance, e.g. against HER2‐targeted therapy. The herein described approach including SNaPshot technology provides a simple method to characterize hotspot mutations within CTCs enriched from peripheral blood and can be easily adopted for analysing further therapeutically relevant SNPs.
Simulating the First Galaxies
Authors: Bromm Volker 
Published: July 2013

AbstractThe formation of the first galaxies marks the end of the cosmic dark ages, initiating the prolonged process of reionization and enriching the pristine intergalactic medium with the first heavy chemical elements. It is now possible to simulate this process with ever greater detail of physical realism, while still considering the proper cosmological context. The simulations have taught us that the feedback from Population III stars is vital in shaping the properties of early galaxies. We are close in pushing ab initio simulations to the point where future instruments, such as the James Webb Space Telescope, can directly test theoretical predictions.
Dynamical masses of early-type galaxies at z ~ 2
Authors: Cappellari Michele 
Published: July 2013

AbstractThe evolution of masses and sizes of passive (early-type) galaxies with redshift provides ideal constraints to galaxy formation models. These parameters can in principle be obtained for large galaxy samples from multi-band photometry alone. However the accuracy of photometric masses is limited by the non-universality of the IMF. Galaxy sizes can be biased at high redshift due to the inferior quality of the imaging data. Both problems can be avoided using galaxy dynamics, and in particular by measuring the galaxies stellar velocity dispersion. Here we provide an overview of the efforts in this direction.
High resolution near-infrared imaging of submillimeter galaxies
Authors: Aguirre Paula , Baker Andrew J. , Menanteau Felipe , Lutz Dieter , Tacconi Linda J. 
Published: July 2013

AbstractWe have obtained high-resolution F110W (~ J) and F160W (~ H) band observations of ten submillimeter galaxies (SMGs) with the Hubble Space Telescope's NICMOS camera, in order to resolve their rest-frame optical morphologies, determine the existence of multiple-component, merger-like configurations, and estimate their stellar masses. The selected targets have redshifts in the range 2.2≤ z ≤ 2.81 confirmed with millimeter or mid-IR spectroscopy, guaranteeing that the two bands sample the galaxies' rest-frame optical light with the Balmer break falling between them.
Sizes of Passively Evolving Galaxies at z ~2 in CLASH
Authors: Fan Lulu , Chen Yang , Er Xinzhong , Lin Lin , Li Jinrong 
Published: July 2013

AbstractWe select ten passively evolving and massive galaxies at redshift z ~ 2 from the Cluster Lensing And Supernova survey with Hubble (CLASH). We derive the stellar properties of these galaxies using the multiwavelength HST WFC3 and ACS data, together with Spitzer IRAC observations. We also analyze the optical rest-frame morphology of these high redshift objects by using the GALFIT package (Peng et al. 2002). The observed near-IR images, obtained with the HST/WFC3 camera with high spatial resolution and amplified by the foreground clusters, provide us with a good chance to study the structures of such systems. Six out of ten galaxies have on average a four times smaller effective radius, in agreement with previous works at redshift z ~ 2.
Cluster galaxies 10 billion years ago
Authors: Strazzullo V. , Daddi E. , Gobat R. , Onodera M. 
Published: July 2013

AbstractCl J1449+0856 is a spectroscopically confirmed galaxy cluster at z ~ 2. The detection of a faint, extended X-ray emission, suggestive of an already evolved, partially relaxed structure, puts this system among the most distant “established” clusters rather than in the realm of z≳2 proto-clusters. This gives us a chance of studying galaxies in an evolved overdense environment very close to their formation epoch, and in particular to trace the evolution of early-type galaxies in clusters back to ten billion years ago.
Mahalo-Subaru: Mapping Star Formation at the Peak Epoch of Massive Galaxy Formation
Authors: Kodama Tadayuki , Hayashi Masao , Koyama Yusei , Tadaki Ken-ichi , Tanaka Ichi , Shimakawa Rhythm 
Published: July 2013

AbstractMAHALO-Subaru (MApping HAlpha and Lines of Oxygen with Subaru) is our on-going large programme which aims to investigate how the star forming activities in galaxies are propagated as a function of time, mass, and environment. We are targeting 10 clusters and proto-clusters at 0.4<z<2.6, and two general fields (GOODS-N and SXDF-CANDELS) with Suprime-Cam and MOIRCS by utilizing our unique sets of narrow-band filters. The narrow-band imaging can map out star forming galaxies with the redshifted Halpha and/or [OII] emission lines from our targets, and thus providing relatively unbiased views of star forming activities across time and environment. We have almost completed narrow-band imaging of our targets, and found that star forming activity is very high even in the proto-cluster cores (z≳1.5), and that the peak of star formation is shifted outwards with time, indicating the inside-out formation of clusters. Moreover, we have identified many “red” emitters especially in high density regions at z>2, which suggests that the mode of star formation and/or the activation of AGN are dependent on environment, and thus holding the key to the environmental effects at the early stage of cluster galaxies formation and evolution.
IRS spectroscopic studies of ULIRGs at z ~ 2
Authors: Fang Guanwen , Kong Xu , Huang Jia-Sheng , Ma Zhongyang 
Published: July 2013

AbstractWe present a result of IRS spectroscopy of 14 Ultra-Luminous Infrared Galaxies (ULIRGs) in the Extended Groth Strip region. These galaxies are massive and have very high star formation rate. Four objects of this sample are detected in the HST/WFC3 near-infrared imaging. They show very diversified rest-frame optical morphologies, including string-like, extended/diffused, and even spiral with a possible bulge, implying different formation processes for these galaxies. We also search for signatures of active galactic nucleus (AGN) in our sample in the X-ray, mid-infrared and radio bands. This sample is dominated by objects with intensive star formation, only 14–29% of them have AGN activities.
Using the Millennium II simulation to test CDM predictions for the structure of massive galaxies
Authors: Cooper Andrew P. , Kauffmann Guinevere , Wang Jing , White Simon D. M. 
Published: July 2013

AbstractWe have combined the semi-analytic galaxy formation model of Guo et al. (2011) with a novel particle-tagging technique to predict galaxy surface brightness profiles in a representative sample of ~1900 massive dark matter haloes (1012–1014 M⊙) from the Millennium II ΛCDM N body simulation. We focus on the outer regions of galaxies and stars accreted in mergers. Our simulations cover scales from the stellar haloes of Milky Way-like galaxies to the ‘cD envelopes’ of groups and clusters, and resolve low surface brightness substructure such as the tidal streams of dwarf galaxies. We find that the spatial distribution of stars in low surface brightness regions is tightly correlated with DM halo mass and that collisionless merging during the hierarchical assembly of galaxies largely determines the structure of spheroidal stellar components. Our ΛCDM model agrees well with the available data.
Colour Properties of Group Galaxies in Pan-STARRS MD Survey Fields
Authors: Chen C. W. , Lin L. , Jian H. Y. , Foucaud S. 
Published: July 2013

AbstractHow environment shapes galaxies on groups scale in the early universe is poorly constrained. Here we carry out a study of the colour properties of galaxies against environment using Pan-STARRS medium deep (PS1 MD) survey data. We first focus on the MD04 field which overlays with the COSMOS field with published photo-z and group catalogs. Photo-z with the accuracy of Δz/(1+z) ~ 0.058 for 0.36 million galaxies are derived based on PS1 photometry and CFHT-u. Together with a probabilistic-based group finder, PFOF, we are able to identify galaxy groups and find a 83%-86% matching rate with the X-ray groups (George et al. 2011) or spectroscopically selected groups (Knobel et al. 2012) with intermediate redshift (z ~ 0.7). Among the matched samples (see Fig. 1), we found the colours of BCGs to be indistinguishable from other members, but group galaxies tend to be redder than those in the field for a given range of z-band magnitude, suggesting environmental effects on the evolutionary history of galaxies. This is qualitatively consistent with the X-ray study (George et al. 2011). The rest-frame quantities, e.g. colours, stellar mass and star formation rates, will be included and expanded to larger MD fields (~ 70 deg2) to probe the cosmic evolution of galaxy properties in a forthcoming study.
Evolutionary paths among different red galaxy types at 0.3 < z < 1.5 and the build-up of massive E-S0's
Authors: Gallego Jesús , Prieto Mercedes , Eliche-Moral M. Carmen , Balcells Marc , Cristóbal-Hornillos David , Erwin Peter , Abreu David , Domínguez-Palmero Lilian , Hempel Angela , López-Sanjuan Carlos , Guzmán Rafael , Pérez-González Pablo G. , Barro Guillermo , Zamorano Jaime 
Published: July 2013

AbstractSome recent observations seem to disagree with hierarchical theories of galaxy formation on the role of major mergers in a late build-up of massive early-type galaxies. We re-address this question by analysing the morphology, structural distortion level, and star formation enhancement of a sample of massive galaxies (M* > 5 × 1010M⊙) lying on the Red Sequence and its surroundings at 0.3 < z < 1.5. We have used an initial sample of ~1800 sources with Ks < 20.5 mag over an area ~155 arcmin2 on the Groth Strip, combining data from the Rainbow Extragalactic Database and the GOYA Survey. Red galaxy classes that can be directly associated to intermediate stages of major mergers and to their final products have been defined. For the first time we report observationally the existence of a dominant evolutionary path among massive red galaxies at 0.6 < z < 1.5, consisting in the conversion of irregular disks into irregular spheroids, and of these ones into regular spheroids. This result points to: 1) the massive red regular galaxies at low redshifts derive from the irregular ones populating the Red Sequence and its neighbourhood at earlier epochs up to z ~ 1.5; 2) the progenitors of the bulk of present-day massive red regular galaxies have been blue disks that have migrated to the Red Sequence majoritarily through major mergers at 0.6 < z < 1.2 (these mergers thus starting at z ~ 1.5); 3) the formation of E-S0's that end up with M* > 1011M⊙ at z = 0 through gas-rich major mergers has frozen since z ~ 0.6. Our results support that major mergers have played the dominant role in the definitive build-up of present-day E-S0's with M* > 1011M⊙ at 0.6 < z < 1.2, in good agreement with the hierarchical scenario proposed in the Eliche-Moral et al. (2010a) model (see also Eliche-Moral et al. 2010b). This study is published in Prieto et al. (2012).Supported by the Spanish Ministry of Science and Innovation (MICINN) under projects AYA2009-10368, AYA2006-12955, AYA2010-21887-C04-04, and AYA2009-11137, by the Madrid Regional Government through the AstroMadrid Project (CAM S2009/ESP-1496), and by the Spanish MICINN under the Consolider-Ingenio 2010 Program grant CSD2006-00070: “First Science with the GTC” (http://www.iac.es/consolider-ingenio-gtc/). S. D. H. & G.
Satellites of massive galaxies: the infalling pieces of the puzzle
Authors: Mármol-Queraltó E. , Trujillo I. , Pérez-González P. G. , Barro G. , Varela J. , Villar V. 
Published: July 2013

AbstractAccretion of minor satellites has been postulated as the most likely mechanism to explain the significant size evolution of massive galaxies over cosmic time. A direct way of probing this scenario is to measure the frequency of satellites around massive galaxies at different redshifts. Here we present our study of satellites around massive galaxies (Mstar ~ 1011 M⊙) up to z ~ 2. We find (Fig. 1) that the fraction of massive galaxies with satellites down to 1:10 mass ratio is ~15% (~30% down to 1:100), not varying with redshift (Mármol-Queraltó et al., (2012)). We also find that our satellites are younger than their central galaxies at low z (Mármol-Queraltó et al., 2013). Then, if minor merging is acting to form massive galaxies, their ourtskirts should be younger than their cores. The challenge to find this age gradient in nearby massive galaxies is opened.
The evolution of massive galaxies in semi-analytical models of galaxy formation
Authors: Baugh Carlton M. 
Published: July 2013

AbstractMassive galaxies with old stellar populations have been put forwards as a challenge to models in which cosmic structures grow hierarchically through gravitational instability. I will explain how the growth of massive galaxies is helped by features of hierarchical models. I give a brief outline of how the galaxy formation process is modelled in hierarchical cosmologies using semi-analytical models, and illustrate how these models can be refined as our understanding of processes such as star formation improves. I then present a brief survey of the current state of play in the modelling of massive galaxies and list some outstanding challenges.
Structural evolution of massive early-type galaxies
Authors: Oser Ludwig , Naab Thorsten , Ostriker Jeremiah P. , Johansson Peter H. 
Published: July 2013

AbstractWe use a large sample of cosmological re-simulations of individual massive galaxies to investigate the origin of the strong increase in sizes and weak decrease of the stellar velocity dispersions since z = 2. At the end of a rapid early phase of star-formation, where stars are created from infalling cold gas, our simulated galaxies are all compact with projected half-mass radii of ≲ 1 kpc and central line-of-sight velocity dispersions of ≈ 262 km s−1. At lower redshifts (z < 2) those galaxies grow predominantly by the accretion of smaller stellar systems and evolve towards the observed local mass-size and mass-velocity dispersion relations. This loss of compactness is accompanied with an increase of central dark matter fractions. We find that the structural evolution of massive galaxies can be explained by frequent minor stellar mergers, which is the dominant mode of accretion for our simulated galaxies.
The XLENS Project: Do More Massive Early-Type Galaxies Have More Dark Matter or Different Stellar IMFs?
Authors: Spiniello Chiara 
Published: July 2013

AbstractThe X-shooter Lens Survey (XLENS) aims to study the interplay of dark matter (DM) and stellar content in the inner regions of massive early-type galaxies (ETGs) by combining strong gravitational lensing, dynamical models, and spectroscopic stellar population analysis. XLENS targets a sample of ETGs from the SLACS survey (The Sloan Lens ACS Survey, e.g. Bolton et al. 2006) with velocity dispersions ≥250 kms−1 using the X-Shooter spectrograph on ESO's Very Large Telescope. Recent observations indicate that the internal dark-matter fraction of ETGs increases rapidly with galaxy mass, although some hints for a varying initial mass function (IMF) have also been suggested, where the low-mass end of the stellar IMF steepens with galaxy mass. XLENS first results unambiguously confirm that DM plays an important role already within one effective radius for very massive systems (Spiniello et al. 2011). Moreover, studying equivalent widths of certain red spectral features which are indicators of low-mass stars in massive ETGs (e.g. NaI and TiO2) as a function of age and metallicity (i.e. Mgb, Fe, Hβ), and as function of stellar velocity dispersion, has shown that the IMF slope is varying mildly with galaxy mass (Spiniello et al. 2012).
Local group analogues – searching for the satellites of the nearest massive galaxies
Authors: Speller Ryan , Taylor James E. 
Published: July 2013

AbstractWe have performed a search for faint companions around the nearest massive galaxies. We see a clear signature of clustering of faint objects, both in projected separation and in velocity offset. The inferred satellite luminosity functions confirm that the abundance of faint satellites seen in the Local Group is typical of other nearby systems.
Fluorescence in the Active Galactic Nuclei NGC 4151
Authors: Eriksson Mattias , Veenhuizen Hans 
Published: July 2013

AbstractThe possibility of UV lines from Fe II formed in the BLR of NGC 4151 has been examined. As a result Fe II emission has been shown to play an important role for the topology of the 2000 to 3000 Å wavelength region of the NGC 4151 spectra. The Fe II UV emission originates from two processes, collisional excitation and PAR (photoexcitation by accidental resonance).
The LF of TP-AGB stars in the LMC/SMC
Authors: Bruzual Gustavo , Charlot Stéphane , Lópezlira Rosa González , Srinivasan Sundar , Boyer Martha L. , Riebel David 
Published: July 2013

AbstractWe show that Monte Carlo simulations of the TP-AGB stellar population in the LMC and SMC galaxies using the CB* models produce LF and color distributions that are in closer agreement with observations than those obtained with the BC03 and CB07 models. This is a progress report of work that will be published elsewhere.
Bayesian analysis of galaxy spectral energy distributions with BayeSED
Authors: Han Yunkun , Han Zhanwen 
Published: July 2013

AbstractIn Han & Han (2012), we have preliminarily built BayeSED and applied it to a sample of hyperluminous infrared galaxies. The physically reasonable results obtained from Bayesian model comparison and parameter estimation show that BayeSED could be a useful tool for understanding the nature of complex systems, such as dust obscured starburst-AGN composite galaxies, from decoding their complex SEDs. In this contribution, we present a more rigorous test of BayeSED by making a mock catalog from model SEDs with the value of all parameters to be known in advance.
The stellar populations of host galaxies of supernovae
Authors: Shao X. , Liang Y. C. , Dennefeld M. , Chen X. Y. , Zhong G. H. , Hammer F. , Deng L. C. , Zhang B. 
Published: July 2013

AbstractWe study and compare the stellar populations of host galaxies of different types of supernovae (SNe): SN Ia and core collapse SN (SN II and SN Ibc) at the same time. The 234 sample galaxies are selected by cross-matching the Asiago Supernova Catalogue (ASC) and the SDSS-DR7 main galaxy sample (MGS). The STARLIGHT software is used to analyze their stellar populations by fitting the continua and absorption lines of the hosts.
The [NII]/Hα calibration of the metallicity of galaxies from Te-based abundances
Authors: Liang Yanchun , Shao Xu , Hammer Francois , Yin Shaoying 
Published: July 2013

AbstractWe gather a sample of both metal-rich and metal-poor galaxies. Both samples have oxygen abundances estimated from electron temperature (Te). The calibration of the emission-line ratio, N2(≡log([NII]6583/Hα), to oxygen abundances is then re-derived from this combined sample, finding good agreement for the wide metallicity and line-ratio ranges considered.
The Intriguing Life of Massive Galaxies: Introducing the Final Discussion
Authors: Renzini Alvio 
Published: July 2013

AbstractThis is a brief introduction to the closing discussion of the IAU Symposium 295, ‘The Intriguing Life of Massive Galaxies’, that was held in Beijing from August 27 through 31, 2012. The discussion was focused on only four hot items, namely 1) the redshift evolution of the size of passively evolving galaxies, 2) the evolution with redshift of the specific star formation rate, 3) quenching of star formation in galaxies and dry merging, and 4) the IMF.