bluuebunny/crossref_metadata_2025_split huggingface dataset:
Seismicity of Nepal and the Surrounding Region
Authors: Thapa Dilli Ram 
Published: August 2018

This study updates an earthquakes catalogue (in terms of surface-wave magnitude, Ms≥4.0) for Nepal and the surrounding region (26°-31.7° N, 79°-90° E) covering the period from 1255 to 2015 and analyze the spatio-temporal distribution patterns of seismicity. The spatial distribution of all catalogued earthquakes indicates that earthquakes are unevenly distributed in Nepal and the surrounding region with distinctly higher earthquake activity in the far western and eastern parts of Nepal than the southern part of the country. The temporal distribution of updated seismicity data (1255-2015) indicates that there are very little accounts of significant earthquakes prior to 1800. Furthermore, the temporal trend of the updated seismic catalogue clearly demonstrate the gradual increase in earthquake data during the time window 1801-1963 and considerable increase in number and quality of seismic events predominantly from 1964 onwards. Bulletin of Department of Geology, vol. 20-21, 2018, pp: 83-86
Authors: Irawan Agus , Risa Mey , Muttaqien Muhammad Ayyasy , Shinnay Adam Elyas 
Published: August 2018

Online sales techniques are the choice of most people today both in the city and in the region. The shift in the way transactions is triggered by the ever-growing digital communication and IT tools. On the other hand the sellers want to utilize the technology optimally, of course, to be reinforced by established sales database systems. Good sales information system is not enough to build a transaction-buying system, but it is necessary to handle stock stock subsystems and financial reports as well as the existence of company profile information as an attraction to prospective customers.
In increasing the sales turnover and structuring of the CV Nonninth administration system requires a robust system to brand their products more well-known while strengthening their sales database system. Sales system design at CV Nonninth inc is built based on (1) piece analysis, (2) system design stage and (3) system implementation into online based application program. Pieces analysis is done by taking into account performance, information, economic, control, efficiency, and service qualitative factors in current and future conditions. System design is done through the Context Diagram, Flowmap, Data Flow Diagram, Table Normalization, ERD, database structure, input and output design and program menu structure. As for the system implementation process using online based programs are Adobe Dreamwaver and Mysql. It is expected that this system can help CV Nonninth improve corporate performance both turnover and administration system
Training of Production Managers for Machine-building Enterprises
Authors: Ivanov I. A. , Persiyanova G. E. 
Published: August 2018

The article discusses the problem of a discrepancy between University programs of production managers training for industrial enterprises and the modern requirements to such specialists. The result is an acute shortage of qualified top managers and middle managers, whereas university graduates can’t find specialty related occupation.To assess the needs of machine-building industry in production managers and various professionals a study was conducted at Novocherkassk Electric Locomotive Plant, which is the largest machine-building enterprise in Russia for production of mainline freight and passenger electric locomotives. Based on the survey using a direct regression, the conclusion was drawn about the current need in specialists of the main and auxiliary shops of the plant. The study showed that approximately 65% of the required specialists with higher education are production managers.To solve the problem of production managers shortage, the authors have developed a training program for production managers who will be able to manage human resources and at the same time effectively use technical tools to perform production process. The implementation of this program will enhance productivity, competitive advantages of domestic manufacturing and graduates’ job placement.
Influenza vaccination in pregnancy: vaccine uptake, maternal and healthcare providers’ knowledge and attitudes. A quantitative study
Authors: Barrett Tina , McEntee Edel , Drew Richard , O’Reilly Fiona , O’Carroll Austin , O’Shea Aisling , Cleary Brian 
Published: August 2018

BackgroundInfluenza during pregnancy is a potentially life threatening illness. There are limited data on influenza vaccination uptake and determinants of uptake in Irish obstetric populations.AimTo determine the uptake of influenza vaccination during pregnancy; determinants of vaccination uptake; knowledge, attitudes, and concerns of postnatal women; and knowledge and attitudes of healthcare professionals (HCPs) surrounding vaccination.Design & settingA quantitative study of postnatal women attending the Rotunda Hospital, a tertiary referral maternity hospital in Dublin, Ireland. A separate quantitative study conducted by the North Dublin City GP Training Programme surveyed GPs, pharmacists, and Rotunda Hospital clinical staff.MethodA paper-based survey was distributed to postnatal women. HCPs completed the survey via the online tool Survey Monkey.Results330 patient surveys were disseminated, with a 60.0% response rate. Of 198 responders, 109 (55.1%) were vaccinated against influenza. Non-professionals were less likely to be vaccinated (adjusted odds ratio [aOR] 0.29, 95% confidence interval [CI] = 0.09 to 0.89). Vaccination in previous pregnancy (aOR 5.2, 95% CI = 1.69 to 15.62) and information from an HCP were strongly associated with vaccination (aOR 12.8, 95% CI = 2.65 to 62.5). There was a 20.2% (n = 1180) response rate among HCPs. More GPs felt that it was their role to discuss vaccination (92.9%; n = 676), and offer to vaccinate women (91.7%; n = 666) than any other HCP.ConclusionProvision of information about the importance of vaccination against influenza and pertussis during pregnancy by HCPs and their consistent recommendations in support of vaccination were key determinants of vaccine uptake during pregnancy. The sociodemographic determinants of a woman’s vaccination status should be addressed in health promotion campaigns. Education of HCPs may address knowledge gaps surrounding vaccination.
The X-Ray Luminosity Function of Ultraluminous X-Ray Sources in Collisional Ring Galaxies
Authors: Wolter Anna , Fruscione Antonella , Mapelli Michela 
Published: August 2018

Abstract
Ring galaxies are fascinating laboratories: a catastrophic impact between two galaxies (one not much smaller than the other) has produced fireworks, especially in the larger one, when hit roughly perpendicularly to the plane. We analyze the point sources produced by the starburst episode following the impact in the rings of seven galaxies and determine their X-ray luminosity function (XLF). In total, we detect 63 sources, of which 50 have luminosity L
X ≥ 1039 erg s−1, classifying them as ultraluminous X-ray sources (ULXs). We find that the total XLF is not significantly different from XLFs derived for other kinds of galaxies, with a tendency of having a larger fraction of high X-ray luminosity objects. Both the total number of ULXs and the number of ULXs per unit star formation rate are found in the upper envelope of the more normal galaxies distribution. Further analysis would be needed to address the issue of the nature of the compact component in the binary system.
Threshold of Non-potential Magnetic Helicity Ratios at the Onset of Solar Eruptions
Authors: Zuccarello F. P. , Pariat E. , Valori G. , Linan L. 
Published: August 2018

Abstract
The relative magnetic helicity is a quantity that is often used to describe the level of entanglement of non-isolated magnetic fields, such as the magnetic field of solar active regions. The aim of this paper is to investigate how different kinds of photospheric boundary flows accumulate relative magnetic helicity in the corona and if and how well magnetic-helicity-related quantities identify the onset of an eruption. We use a series of three-dimensional, parametric magnetohydrodynamic simulations of the formation and eruption of magnetic flux ropes. All the simulations are performed on the same grid, using the same parameters, but they are characterized by different driving photospheric flows, i.e., shearing, convergence, stretching, and peripheral- and central- dispersion flows. For each of the simulations, the instant of the onset of the eruption is carefully identified by using a series of relaxation runs. We find that magnetic energy and total relative helicity are mostly injected when shearing flows are applied at the boundary, while the magnetic energy and helicity associated with the coronal electric currents increase regardless of the kind of photospheric flows. We also find that, at the onset of the eruptions, the ratio between the non-potential magnetic helicity and the total relative magnetic helicity has the same value for all the simulations, suggesting the existence of a threshold in this quantity. Such a threshold is not observed for other quantities as, for example, those related to the magnetic energy.
Merger History of Central Galaxies in Semi-analytic Models of Galaxy Formation
Authors: Raouf Mojtaba , Khosroshahi Habib G. , Mamon Gary A. , Croton Darren J. , Hashemizadeh Abdolhosein , Dariush Ali A. 
Published: August 2018

Abstract
We investigate the dynamical evolution of galaxies in groups with different formation epochs. Galaxy groups have been selected to be in different dynamical states, namely dynamically old and dynamically young, which reflect their early and late formation times, respectively, based on their halo mass assembly. The brightest galaxies in dynamically young groups have suffered their last major galaxy merger typically ∼2 Gyr more recently than their counterparts in dynamically old groups. Furthermore, we study the evolution of velocity dispersion in these two classes and compare them with the analytic models of isolated halos. The velocity dispersion of dwarf galaxies in high-mass, dynamically young groups increases slowly in time, while the analogous dispersion in dynamically old, high-mass groups is constant. In contrast, the velocity dispersion of giant galaxies in low-mass groups decreases rapidly at late times. This increasing velocity bias is caused by dynamical friction, and starts much earlier in the dynamically old groups. The recent Radio-SAGE model of galaxy formation suggests that radio luminosities of central galaxies, considered to be tracers of AGN activity, are enhanced in halos that assembled more recently, independent of the time since the last major merger.
Helioseismic Inversion to Infer the Depth Profile of Solar Meridional Flow Using Spherical Born Kernels
Authors: Mandal K. , Hanasoge S. M. , Rajaguru S. P. , Antia H. M. 
Published: August 2018

Abstract
Accurate inferences of solar meridional flow are crucial for understanding solar dynamo processes. Wave travel times, as measured on the surface, will change if the waves encounter perturbations, e.g., in the sound speed or flows, as they propagate through the solar interior. Using functions called sensitivity kernels, we can image the underlying anomalies that cause measured shifts in travel times. The inference of large-scale structures, e.g., meridional circulation, requires computing sensitivity kernels in spherical geometry. Mandal et al. have computed such spherical kernels in the limit of the first-Born approximation. In this work, we perform an inversion for meridional circulation using travel-time measurements obtained from 6 years of Solar Dynamics Observatory/Helioseismic and Magnetic Imager data and those sensitivity kernels. We enforce mass conservation by inverting for a stream function. The number of free parameters is reduced by projecting the solution onto cubic B-splines in radius and derivatives of the Legendre-polynomial basis in latitude, thereby improving the condition number of the inverse problem. We validate our approach for synthetic observations before performing the actual inversion. The inversion suggests a single-cell profile with a return flow occurring at depths below 0.78 R
⊙.
A New Interpretation of the Mass–Temperature Relation and Mass Calibration of Galaxy Clusters Based on the Fundamental Plane
Authors: Fujita Yutaka , Umetsu Keiichi , Ettori Stefano , Rasia Elena , Okabe Nobuhiro , Meneghetti Massimo 
Published: August 2018

Abstract
Observations and numerical simulations have shown that the relation between the mass scaled with the critical density of the universe and the X-ray temperature of galaxy clusters is approximately represented by

M

Δ

∝

T

X

3

/

2

(e.g.,

Δ
=
500

). This relation is often interpreted as evidence that clusters are in virial equilibrium. However, the recently discovered fundamental plane (FP) of clusters indicates that the temperature of clusters primarily depends on a combination of the characteristic mass M

s
and radius r

s
of the Navarro–Frenk–White profile rather than M
Δ. Moreover, the angle of the FP revealed that clusters are not in virial equilibrium because of continuous mass accretion from the surrounding matter. By considering both the FP and the mass dependence of the cluster concentration parameter, we show that this paradox can be solved and the relation

M

Δ

∝

T

X

3

/

2

actually reflects the central structure of clusters. We also find that the intrinsic scatter in the halo concentration–mass relation can largely account for the spread of clusters on the FP. We also show that X-ray data alone form the FP and the angle and the position are consistent with those of the FP constructed from gravitational lensing data. We demonstrate that a possible shift between the two FPs can be used to calibrate cluster masses obtained via X-ray observations.
Three-phase Evolution of a Coronal Hole. II. The Magnetic Field
Authors: Heinemann Stephan G. , Hofmeister Stefan J. , Veronig Astrid M. , Temmer Manuela 
Published: August 2018

Abstract
We investigate the magnetic characteristics of a persistent coronal hole (CH) extracted from EUV imagery using Heliospheric and Magnetic Imager filtergrams over the period 2012 February–October. The magnetic field, its distribution, and the magnetic fine structure in the form of flux tubes (FTs) are analyzed in different evolutionary states of the CH. We find a strong linear correlation between the magnetic properties (e.g., signed/unsigned magnetic field strength) and the area of the CH. As such, the evolutionary pattern in the magnetic field clearly follows a three-phase evolution (growing, maximum, and decaying) as found from EUV data (Part I). This evolutionary process is most likely driven by strong FTs with a mean magnetic field strength exceeding 50 G. During the maximum phase they entail up to 72% of the total signed magnetic flux of the CH, but only cover up to 3.9% of the total CH area, whereas during the growing and decaying phases, strong FTs entail 54%–60% of the signed magnetic flux and cover around 1%–2% of the CH’s total area. We conclude that small-scale structures of strong unipolar magnetic field are the fundamental building blocks of a CH and govern its evolution.
A Luminous and Highly Variable Gamma-Ray Flare Following the 2017 Periastron of PSR B1259–63/LS 2883
Authors: Johnson T. J. , Wood K. S. , Kerr M. , Corbet R. H. D. , Cheung C. C. , Ray P. S. , Omodei N. 
Published: August 2018

Abstract
Three periastron passages of the PSR B1259−63/LS 2883 binary system, consisting of a 48 ms rotation-powered pulsar and a Be star, have been observed by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope, in 2010, 2014, and 2017. During the most recent periastron passage, sustained low-level gamma-ray emission was observed over a ∼3-week-long interval immediately after periastron, which was followed by an interval of no emission. Sporadic flares were detected starting 40 days post-periastron and lasted approximately 50 days, during which the emission displayed significant spectral curvature, variability on timescales as short as 1.5 minutes, and peak flux levels well in excess of the pulsar spin-down power. By contrast, during the 2010 and 2014 periastron passages, significant gamma-ray emission was not observed with the LAT until 30 and 32 days post-periastron, respectively. The previous flares did not exhibit spectral curvature, showed no short term variability, and did not exceed the pulsar spin-down power. The high flux and short timescales observed in 2017 suggest significant beaming of the emission is required and constrain the size of the emission region. The flares occur long enough after periastron that the neutron star should already have passed through the extended disk-like outflow, thus constraining options for target material and seed photon sources for inverse Compton models.
A Comparative Evaluation of a New Generation of Diffractive Trifocal and Extended Depth of Focus Intraocular Lenses
Authors: Cochener Beatrice , Boutillier Guillaume , Lamard Mathieu , Auberger-Zagnoli Claire 
Published: August 2018

PURPOSE:
To evaluate and compare the performance of two diffractive trifocal and one extended depth of focus (EDOF) intraocular lenses (IOLs).

METHODS:
In this 6-month, single-center, prospective, randomized, comparative study, patients undergoing routine cataract surgery were randomized to receive one of two trifocal IOLs (AcrySof IQ PanOptix; Alcon Laboratories, Inc., Fort Worth, TX, or FineVision Micro F; PhysIOL SA, Liège, Belgium) or an EDOF IOL (TECNIS Symfony; Abbott Medical Optics, Inc., Abbott Park, IL). There were 20 patients in each group. The primary outcome was binocular and monocular uncorrected distance (UDVA), intermediate (UIVA), and near (UNVA) visual acuity. The secondary outcomes were quality of vision and aberrometry.

RESULTS:

There was no statistically significant difference between groups in either monocular (
P
= .717) or binocular (
P
= .837) UDVA. Monocular and binocular UNVA were statistically and significantly better for both trifocal lenses than for the EDOF IOL (
P
= .002). The percentage of patients with J2 UNVA was 52.5% monocularly and 70% binocularly for the TECNIS Symfony IOL, 81.5% monocularly and 100% binocularly for the AcrySof IQ PanOptix IOL, and 82.5% monocularly and 95% binocularly for the FineVision Micro F IOL. There was no significant difference in binocular UIVA between groups; VA was better than 0.6 in 55%, 53%, and 35% of patients with the TECNIS Symfony, AcrySof IQ Pan-Optix, and FineVision Micro F IOLs, respectively. Overall, 90% patients achieved spectacle independence. There were no differences in visual symptoms and aberrometry among groups.

CONCLUSIONS:
All three IOLs provided good visual acuity at all distances, a high percentage of spectacle independence, and little or no impact of visual symptoms on the patients' daily functioning. Near vision was statistically better for both trifocal IOLs compared to the EDOF IOL.

[
J Refract Surg.
2018;34(8):507–514.]
Does PACK-CXL Change the Prognosis of Resistant Infectious Keratitis?
Authors: Zloto Ofira , Barequet Irina S. , Weissman Alon , Ezra Nimni Orit , Berger Yoav , Avni-Zauberman Noa 
Published: August 2018

PURPOSE:To examine the clinical characteristics, treatments, and prognosis of all cases of infectious keratitis resistant to conventional therapy and treated by photo-activated chromophore for keratitis corneal cross-linking (PACK-CXL) in one institution between 2012 and 2016.METHODS:A database search of patients who underwent PACK-CXL (ultraviolet-A for 10 minutes for irradiance of 9 mW/cm2) for infectious keratitis unresponsive to medical treatment at a tertiary care hospital was conducted. The following parameters were documented: patient demographic information, corrected distance visual acuity (CDVA) before the procedure and at the end of follow-up, characteristics of the ulcer, antibiotic treatment prior to CXL, culture results, and long-term complications. Cases with less than 1 year of follow-up were excluded.RESULTS:PACK-CXL was performed in 18 consecutive eyes. CDVA at the time of presentation was 1.47 logMAR (mean 1.47 ± 0.72 logMAR, range: 0.00 to 2.79 logMAR). Culture results were positive in 72% of eyes (13 of 18 patients) and no pathogens were identified in 28% of eyes (5 of 18 patients). All patients were treated with more than one antibiotic. The mean CDVA at the end of follow-up was 1.22 logMAR (mean: 1.22 ± 0.89 logMAR, range: 0 to 2.07 logMAR). There was no significant change between CDVA at presentation to CDVA at the end of follow-up (matched pair,P= .126). One eye underwent an emergency therapeutic penetrating keratoplasty.CONCLUSIONS:Patients with large, central corneal ulcer and poor CDVA who were resistant to conventional treatment underwent PACK-CXL. At the end of follow-up, only one eye required emergency penetrating keratoplasty. This low rate might be attributed to a good response to CXL.[J Refract Surg.2018;34(8):559–563.]
Comparing Total Keratometry Measurement on the IOLMaster 700 With Goggin Nomogram Adjusted Anterior Keratometry
Authors: LaHood Benjamin R. , Goggin Michael , Beheregaray Simone , Andrew Nicholas H. , Esterman Adrian 
Published: August 2018

PURPOSE:
To compare “total keratometry” measurements with Goggin nomogram adjusted anterior keratometry (GNAK) for toric intraocular lens calculation.

METHODS:
Routine biometry provided measured total keratometry values from which astigmatism was derived. The Goggin nomogram was applied to anterior keratometry values on the same eyes to provide nomogram-adjusted anterior keratometry values (GNAK) that estimate total corneal astigmatism. The agreement between total keratometry and GNAK was analyzed.

RESULTS:

Overall, in 46 eyes there was no statistically significant difference between median GNAK and total keratometry power values (
P
= .746). No statistically significant difference remained in against-the-rule and oblique subgroup analyses. Absolute and signed steep axis of astigmatism was statistically significantly different for GNAK and total keratometry in the overall analysis (
P
< .001 and = .029, respectively) and for against-the-rule and oblique subgroup analyses. The with-the-rule subgroup showed a statistically significant difference in astigmatic power and no significant signed steep axis difference between GNAK and total keratometry.

CONCLUSIONS:
Total keratometry appears able to measure total corneal astigmatism to match closely (clinically and statistically) GNAK estimation of that parameter. This indicates that it would be safe and reasonable to use total keratometry data for planning of cataract surgery with toric IOLs.

[
J Refract Surg.
2018;34(8):521–526.]