bluuebunny/crossref_metadata_2025_split huggingface dataset:
A GLOBAL CORRECTION TO PPMXL PROPER MOTIONS
Authors: Vickers John J. , Röser Siegfried , Grebel Eva K. 
Published: March 2016

ABSTRACT
In this paper we note that extragalactic sources seem to have non-zero proper motions in the PPMXL proper motion catalog. We collect a large, all sky sample of extragalactic objects and fit their reported PPMXL proper motions to an ensemble of spherical harmonics in magnitude shells. A magnitude-dependent proper motion correction is thus constructed. This correction is applied to a set of fundamental radio sources, quasars, and is compared to similar corrections to assess its utility. We publish, along with this paper, a code that can be used to correct proper motions in the PPMXL catalog over the full sky; this code requires Two Micron All Sky Survey photometry.
POINT SOURCE POLARIMETRY WITH THE GEMINI PLANET IMAGER: SENSITIVITY CHARACTERIZATION WITH T5.5 DWARF COMPANION HD 19467 B
Authors: Jensen-Clem Rebecca , Millar-Blanchaer Max , Mawet Dimitri , Graham James R. , Wallace J. Kent , Macintosh Bruce , Hinkley Sasha , Wiktorowicz Sloane J. , Perrin Marshall D. , Marley Mark S. , Fitzgerald Michael P. , Oppenheimer Rebecca , Ammons S. Mark , Rantakyrö Fredrik T. , Marchis Franck 
Published: March 2016

ABSTRACT
Detecting polarized light from self-luminous exoplanets has the potential to provide key information about rotation, surface gravity, cloud grain size, and cloud coverage. While field brown dwarfs with detected polarized emission are common, no exoplanet or substellar companion has yet been detected in polarized light. With the advent of high contrast imaging spectro-polarimeters such as GPI and SPHERE, such a detection may now be possible with careful treatment of instrumental polarization. In this paper, we present 28 minutes of H-band GPI polarimetric observations of the benchmark T5.5 companion HD 19467 B. We detect no polarization signal from the target, and place an upper limit on the degree of linear polarization of

. We discuss our results in the context of T dwarf cloud models and photometric variability.
OPTIMIZING GLOBAL CORONAL MAGNETIC FIELD MODELS USING IMAGE-BASED CONSTRAINTS
Authors: Jones Shaela I. , Davila Joseph M. , Uritsky Vadim 
Published: March 2016

ABSTRACT
The coronal magnetic field directly or indirectly affects a majority of the phenomena studied in the heliosphere. It provides energy for coronal heating, controls the release of coronal mass ejections, and drives heliospheric and magnetospheric activity, yet the coronal magnetic field itself has proven difficult to measure. This difficulty has prompted a decades-long effort to develop accurate, timely, models of the field—an effort that continues today. We have developed a method for improving global coronal magnetic field models by incorporating the type of morphological constraints that could be derived from coronal images. Here we report promising initial tests of this approach on two theoretical problems, and discuss opportunities for application.
PHOTOMETRIC AND SPECTROSCOPIC FOOTPRINT CORRECTIONS IN THE SLOAN DIGITAL SKY SURVEY’S 6TH DATA RELEASE
Authors: Specian Mike A. , Szalay Alex S. 
Published: March 2016

ABSTRACT
We identify and correct numerous errors within the photometric and spectroscopic footprints (SFs) of the Sloan Digital Sky Survey’s (SDSS) 6th data release (DR6). Within the SDSS’s boundaries hundreds of millions of objects have been detected. Yet we present evidence that the boundaries themselves contain a significant number of mistakes that are being revealed for the first time within this paper. Left unaddressed, these can introduce systematic biases into galaxy clustering statistics. Using the DR6 Main Galaxy Sample (MGS) targets as tracers, we reveal inconsistencies between the photometric and SF definitions provided in the Catalog Archive Server (CAS), and the measurements of targets therein. First, we find that 19.7 deg2 of the DR6 photometric footprint are devoid of MGS targets. In volumes of radii 7

, this can cause errors in the expected number of galaxies to exceed 60%. Second, we identify seven areas that were erroneously included or excluded from the SF. Moreover, the tiling algorithm that positioned spectroscopic fibers during and between DRs caused many areas along the edge of the SF to be significantly undersampled relative to the footprint’s interior. Through our corrections, we increase the completeness 2.2% by trimming 3.6% of the area from the existing SF. The sum total of these efforts has generated the most accurate description of the SDSS DR6 footprints ever created.
ALMA IMAGING OF THE CO (6-5) LINE EMISSION IN NGC 7130*
Authors: Zhao (赵应和) Yinghe , Lu Nanyao , Xu C. Kevin , Gao (高煜) Yu , Barcos-Munõz Loreto , Díaz-Santos Tanio , Appleton Philip , Charmandaris Vassilis , Armus Lee , van der Werf Paul , Evans Aaron , Cao Chen , Inami Hanae , Murphy Eric 
Published: March 2016

ABSTRACT
In this paper, we report our high-resolution (0.″20 × 0.″14 or ∼70 × 49 pc) observations of the CO(6-5) line emission, which probes warm and dense molecular gas, and the 434 μm dust continuum in the nuclear region of NGC 7130, obtained with the Atacama Large Millimeter Array (ALMA). The CO line and dust continuum fluxes detected in our ALMA observations are 1230 ± 74 Jy km s−1 and 814 ± 52 mJy, respectively, which account for 100% and 51% of their total fluxes. We find that the CO(6-5) and dust emissions are generally spatially correlated, but their brightest peaks show an offset of ∼70 pc, suggesting that the gas and dust emissions may start decoupling at this physical scale. The brightest peak of the CO(6-5) emission does not spatially correspond to the radio continuum peak, which is likely dominated by an active galactic nucleus (AGN). This, together with our additional quantitative analysis, suggests that the heating contribution of the AGN to the CO(6-5) emission in NGC 7130 is negligible. The CO(6-5) and the extinction-corrected Pa-α maps display striking differences, suggestive of either a breakdown of the correlation between warm dense gas and star formation at linear scales of <100 pc or a large uncertainty in our extinction correction to the observed Pa-α image. Over a larger scale of ∼2.1 kpc, the double-lobed structure found in the CO(6-5) emission agrees well with the dust lanes in the optical/near-infrared images.
KIM 3: AN ULTRA-FAINT STAR CLUSTER IN THE CONSTELLATION OF CENTAURUS
Authors: Kim Dongwon , Jerjen Helmut , Mackey Dougal , Da Costa Gary S. , Milone Antonino P. 
Published: March 2016

ABSTRACT
We report the discovery of an ultra-faint star cluster in the constellation of Centaurus. This new stellar system, Kim 3, features a half-light radius of

pc and a total luminosity of M

V
= +0.7 ± 0.3. Approximately 26 stars are identified as candidate member stars down to four magnitudes below the main-sequence turn-off, which makes Kim 3 the least luminous star cluster known to date. The compact physical size and extreme low luminosity place it close to faint star clusters in the size–luminosity plane. The stellar population of Kim 3 appears to be relatively young (

Gyr) and metal-poor ([Fe/H]

) at a heliocentric distance of

kpc. The cluster lacks a well-defined center, and a small but prominent group of stars consistent with the Kim 3 isochrone is present approximately 9.7 pc in projection south of the cluster center. Both are signs of the cluster being in the final stage of tidal disruption.
CAUGHT IN THE ACT: GAS AND STELLAR VELOCITY DISPERSIONS IN A FAST QUENCHING COMPACT STAR-FORMING GALAXY AT z ∼ 1.7
Authors: Barro Guillermo , Faber Sandra M. , Dekel Avishai , Pacifici Camilla , Pérez-González Pablo G. , Toloba Elisa , Koo David C. , Trump Jonathan R. , Inoue Shigeki , Guo Yicheng , Liu Fengshan , Primack Joel R. , Koekemoer Anton M. , Brammer Gabriel , Cava Antonio , Cardiel Nicolas , Ceverino Daniel , Eliche Carmen , Fang Jerome J. , Finkelstein Steven L. , Kocevski Dale D. , Livermore Rachael C. , McGrath Elizabeth 
Published: March 2016

ABSTRACT
We present Keck I MOSFIRE spectroscopy in the Y and H bands of GDN-8231, a massive, compact, star-forming galaxy at a redshift of z ∼ 1.7. Its spectrum reveals both Hα and [N ii] emission lines and strong Balmer absorption lines. The Hα and Spitzer MIPS 24 μm fluxes are both weak, thus indicating a low star-formation rate of SFR

yr−1. This, added to a relatively young age of ∼700 Myr measured from the absorption lines, provides the first direct evidence for a distant galaxy being caught in the act of rapidly shutting down its star formation. Such quenching allows GDN-8231 to become a compact, quiescent galaxy, similar to three other galaxies in our sample, by z ∼ 1.5. Moreover, the color profile of GDN-8231 shows a bluer center, consistent with the predictions of recent simulations for an early phase of inside-out quenching. Its line-of-sight velocity dispersion for the gas,

= 127 ± 32 km s−1, is nearly 40% smaller than that of its stars,

= 215 ± 35 km s−1. High-resolution hydro-simulations of galaxies explain such apparently colder gas kinematics of up to a factor of ∼1.5 with rotating disks being viewed at different inclinations and/or centrally concentrated star-forming regions. A clear prediction is that their compact, quiescent descendants preserve some remnant rotation from their star-forming progenitors.
SUBARCSECOND ANALYSIS OF THE INFALLING–ROTATING ENVELOPE AROUND THE CLASS I PROTOSTAR IRAS 04365+2535
Authors: Sakai Nami , Oya Yoko , López-Sepulcre Ana , Watanabe Yoshimasa , Sakai Takeshi , Hirota Tomoya , Aikawa Yuri , Ceccarelli Cecilia , Lefloch Bertrand , Caux Emmanuel , Vastel Charlotte , Kahane Claudine , Yamamoto Satoshi 
Published: March 2016

ABSTRACT
Subarcsecond images of the rotational line emission of CS and SO have been obtained toward the Class I protostar IRAS 04365+2535 in TMC-1A with ALMA. A compact component around the protostar is clearly detected in the CS and SO emission. The velocity structure of the compact component of CS reveals infalling–rotating motion conserving the angular momentum. It is well explained by a ballistic model of an infalling–rotating envelope with the radius of the centrifugal barrier (one-half of the centrifugal radius) of 50 au, although the distribution of the infalling gas is asymmetric around the protostar. The distribution of SO is mostly concentrated around the radius of the centrifugal barrier of the simple model. Thus, a drastic change in chemical composition of the gas infalling onto the protostar is found to occur at a 50 au scale probably due to accretion shocks, demonstrating that the infalling material is significantly processed before being delivered into the disk.
Public Health and Social Desirability in Kazakhstan: Methodological Considerations
Authors: Craig Brett J. , Engstrom Martha C. 
Published: March 2016

Background: As the Republic of Kazakhstan undertakes new public health efforts to promote healthy lifestyles among its citizens, the local perceptions of health and health behaviors need to be examined and understood from the sociocultural and historical perspectives. The primary aim of this study is to examine the association between perception of control on one’s health and engagement in good and bad health behaviors.Methods: Students enrolled in a health communication course surveyed 310 citizens of Kazakhstan on their perceptions of control over their own health and multiple health behaviors (i.e. smoking status, physical activity, etc.). Twenty-seven students were divided into groups and approached every third passerby as a potential participant during common shopping hours in nine popular marketplaces in Astana, Kazakhstan. Perception of control on one’s health was measured using a validated measure of health control: the multidimensional health locus of control scale (MHLC), developed by Wallston and colleagues. The MHLC measures three separate loci of control: internal, chance, and powerful others.Results: Participants perceived themselves as having highest control over their health (MHLC subscale internal: 29.70±0.64), powerful others had second highest control (MHLC subscale power others: 23.72±0.77), and chance had the lowest but still some control on their health (MHLC subscale chance: 20.82±0.85). Most participants rated their current health as very good (18.1%), good (45.0%), or moderate (32.3%). Approximately 23.4% of participants were smokers, and 22.2% consumed alcohol. Physical activity averaged 3.63 days in the past week, and fruit and vegetable consumption averaged 2 servings of each per day. Tobacco and the powerful others subscale were significantly negatively correlated (r=-0.17, p<0.05). Conclusions: Participant reports regarding personal health behaviors and lifestyle did not reflect the national reports regarding lifestyle behaviors. The relationship between powerful others subscale and tobacco smoking indicate that using healthcare providers may open up avenues to lowering tobacco use through patient education; however, social desirability is a notable concern for public health interventions. More importantly, the surveys uncovered future questions for conducting public health research with the general public, including issues of trust in the healthcare system and social desirability bias. Additional factors such as distrust in healthcare and government also may play a role in the public’s participation in social scientific research. The students who conducted the surveys reported a general skepticism from the public ranging from unfamiliarity with survey research to explicit distrust in the intentions and purpose of the research itself.
Risk of Stem Undersizing with Direct Anterior Approach for Total HIP Arthroplasty
Authors: Rivera Fabrizio , Leonardi Francesco , Evangelista Andrea , Pierannunzii Luca 
Published: March 2016

Purpose The direct anterior approach (DAA) for total hip arthroplasty (THA) is claimed to be as effective but less invasive than the conventional posterior approach (PA). However, the higher risk of femoral fracture and soft tissue damage cannot be underestimated. The present authors believe that the difficult femoral exposure and the surgeon's knowledge of possible complications related to femoral preparation may result in a higher rate of undersized stems when compared to PA, even when a short femoral component is employed to minimise these risks. Methods A retrospective study was performed to compare the effective adherence of surgical sizing to preoperative planning in a series of 112 short stem THAs, of which 59 were implanted through PA and 53 through DAA without intraoperative imaging, by a single surgeon skilled in both techniques. Results the frequency of stems smaller than expected was 3-times higher with DAA than with PA (54.72% vs 16.95%, p<0.001), while the frequency of stems at least 2 sizes smaller than expected was more than 6-times higher with DAA than with PA (24.53% vs 3.39%, p = 0.001). Conversely, no differences of size discrepancy distribution were found for cups and prosthetic heads. Postoperative x-rays confirmed an inferior mean canal fill in the DAA group, but excluded a different incidence of frontal malalignment between the groups. Conclusions The technical difficulty of femoral preparation and the surgeon's knowledge of possible related complications might lead to implant undersized stems more frequently through DAA than through PA, especially if intraoperative imaging controls are not used.
Evaluation of the Incidence of Pulmonary Embolus in the Early Postoperative Period following Cemented Hemiarthroplasty
Authors: Murphy Colin G. , Moran Deirdre E. , Gerstenmaier Jan F. , Bruce-Brand Rob , O'Toole Gary C. , O'Rourke S. Kieran , Heffernan Eric J. 
Published: March 2016

Purpose Little is known regarding the incidence of early postoperative pulmonary embolus (PE) following hip fracture surgery. Clinical suspicion of PE mandates therapeutic anticoagulation, adding a further insult to those of trauma and surgery in a physiologically frail population. The aim of the study was to evaluate for the presence of PEs by performing postoperative CT pulmonary angiography (CTPA) in patients who demonstrated intraoperative, or early postoperative cardiorespiratory lability following surgery with a cemented prosthesis for intracapsular hip fracture. Methods All patients undergoing cemented hemiarthroplasty for displaced intracapsular neck of femur fracture were recruited during a 6-month period, and signed consent obtained from the patient or their next of kin for CTPA in the event of any cardiorespiratory instability. Patient demographics, comorbidities were reviewed, and premorbid mobility status documented. Results 18 of the 66 patients in the study having cemented hemiarthropalsty demonstrated intra- or early postoperative lability, all had early postoperative CTPA scans. 6 of the 18 were noted to have PE. All had more than 1 risk factor for VTE on admission (excluding their injury). Patients diagnosed with PE had a higher ASA grade, and lower mobility scores than those who did not have a PE. Conclusions Clinical suspicion alone is inadequate to diagnosis PE in patients undergoing cemented hip arthroplasty. Only 1 in 3 patients suspected of PE on account of intraoperative or immediate postoperative cardiorespiratory lability was found to have a PE based on CTPA. Early postoperative CTPA is helpful to prevent unnecessary anticoagulation for suspected PE.
Transradial access for Visceral Endovascular Interventions in Morbidly Obese Patients: Safety and Feasibility
Authors: Biederman Derek M. , Marinelli Brett , O'Connor Paul J. , Titano Joseph J. , Patel Rahul S. , Kim Edward , Tabori Nora E. , Nowakowski Francis S. , Lookstein Robert A. , Fischman Aaron M. 
Published: March 2016

Purpose Transradial access (TRA) has been shown to lower morbidity and bleeding complications compared to transfemoral access in percutaneous coronary interventions. Morbid obesity, commonly defined as a body mass index (BMI) ≥40 kg/m2, has been shown to be a risk factor for access site complications irrespective of access site. This study evaluates the safety and feasibility of performing visceral endovascular interventions in morbidly obese patients via TRA. Methods Procedural details, technical success, and 30-day major and minor access site, bleeding, and neurological adverse events were prospectively recorded in a database of 1057 procedures performed via the radial artery. From this database we identified 22 visceral interventions performed with TRA in 17 morbidly obese patients (age: 53 ± 11 years, female: 71%) with a median BMI of 42.7 kg/m2. Results Interventions included radio-embolization (n = 7, 31.8%), chemo-embolization (n = 6, 27.3%), uterine fibroid embolization (n = 4, 18.2%), renal embolization (n = 2, 9.1%), hepatic embolization (n = 1, 4.5%), lumbar artery embolization (n = 1, 4.5%), and renal angioplasty (n = 1, 4.5%). The technical success was 100%. There were no major or minor adverse access site, bleeding, or neurological complications at 30 days. Conclusions This study suggests visceral endovascular interventions performed in morbidly obese patients are safe and feasible.
High-efficiency p–i–n superstrate amorphous Si solar cells on SiOx periodic arrays of three-dimensional microstructure prepared by soft imprinting
Authors: Niikura Chisato , Chowdhury Amartya , Janthong Bancha , Sichanugrist Porponth , Konagai Makoto 
Published: March 2016

Abstract
Efficient amorphous Si thin-film solar cells in a p–i–n superstrate configuration with a high initial conversion efficiency of 10.3% were successfully fabricated on periodically three-dimensional (3D) micropatterned SiO
x
/glass substrates prepared by soft imprinting. Conformal film deposition on a 3D microstructure was realized owing to the shape of our newly designed 3D pattern and the triode plasma-enhanced CVD technique, which enables the selective transport of favorable film precursors to the substrate surface. The nanoscale surface texture of the front transparent conductive oxide layer was found to be crucial for optical confinement, unexceptionally for amorphous Si solar cells on a 3D microstructure, which results in an improved short-circuit current density.
Effect of gas residence time on near-edge X-ray absorption fine structures of hydrogenated amorphous carbon films grown by plasma-enhanced chemical vapor deposition
Authors: Jia Lingyun , Sugiura Hirotsugu , Kondo Hiroki , Takeda Keigo , Ishikawa Kenji , Oda Osamu , Sekine Makoto , Hiramatsu Mineo , Hori Masaru 
Published: March 2016

Abstract
In hydrogenated amorphous carbon films, deposited using a radical-injection plasma-enhanced chemical vapor deposition system, the chemical bonding structure was analyzed by near-edge X-ray absorption fine-structure spectroscopy. With a change in the residence times of source gases in a reactor, whereby total gas flow rates of H2/CH4 increased from 50 to 400 sccm, sp2-C fractions showed the minimum value at 150 sccm, while H concentration negligibly changed according to the results of secondary ion mass spectroscopy. On the other hand, widths of σ* C–C peaks increased with decreasing gas residence time, which indicates an increase in the fluctuation of bonding structures.
Photoinduced top-gate effect in amorphous InGaZnO4 thin-film transistors
Authors: Takechi Kazushige , Tanabe Hiroshi 
Published: March 2016

Abstract
In this paper, we will discuss the top-gate effect under illumination in amorphous InGaZnO4 thin-film transistors (a-InGaZnO TFTs) having a transparent top-gate electrode. The dependence of bottom-gate transfer characteristics on top-gate voltage (V
tg) shows a specific behavior under 425 nm light illumination, which we call the “photoinduced top-gate effect”. The subthreshold current under 425 nm light illumination, whose photon energy is smaller than the optical bandgap of a-InGaZnO, increases with increasing magnitude of negative V
tg. Measurements at various temperatures support the idea that the photoinduced top-gate effect arises from a tunneling mechanism due to a negative V
tg.
A 600-µW ultra-low-power associative processor for image pattern recognition employing magnetic tunnel junction-based nonvolatile memories with autonomic intelligent power-gating scheme
Authors: Ma Yitao , Miura Sadahiko , Honjo Hiroaki , Ikeda Shoji , Hanyu Takahiro , Ohno Hideo , Endoh Tetsuo 
Published: March 2016

Abstract
A novel associative processor using magnetic tunnel junction (MTJ)-based nonvolatile memories has been proposed and fabricated under a 90 nm CMOS/70 nm perpendicular-MTJ (p-MTJ) hybrid process for achieving the exceptionally low-power performance of image pattern recognition. A four-transistor 2-MTJ (4T-2MTJ) spin transfer torque magnetoresistive random access memory was adopted to completely eliminate the standby power. A self-directed intelligent power-gating (IPG) scheme specialized for this associative processor is employed to optimize the operation power by only autonomously activating currently accessed memory cells. The operations of a prototype chip at 20 MHz are demonstrated by measurement. The proposed processor can successfully carry out single texture pattern matching within 6.5 µs using 128-dimension bag-of-feature patterns, and the measured average operation power of the entire processor core is only 600 µW. Compared with the twin chip designed with 6T static random access memory, 91.2% power reductions are achieved. More than 88.0% power reductions are obtained compared with the latest associative memories. The further power performance analysis is discussed in detail, which verifies the special superiority of the proposed processor in power consumption for large-capacity memory-based VLSI systems.