bluuebunny/crossref_metadata_2025 huggingface dataset:
Spiral Bevel Gears Face Roughness Prediction Produced by CNC End Milling Centers
Authors: Álvarez Álvaro , Calleja Amaia , Arizmendi Mikel , González Haizea , Lopez de Lacalle Luis Norberto
Published: July 2018

The emergence of multitasking machines in the machine tool sector presents new opportunities for the machining of large size gears and short production series in these machines. However, the possibility of using standard tools in conventional machines for gears machining represents a technological challenge from the point of view of workpiece quality. Machining conditions in order to achieve both dimensional and surface quality requirements need to be determined. With these considerations in mind, computer numerical control (CNC) methods to provide useful tools for gear processing are studied. Thus, a model for the prediction of surface roughness obtained on the teeth surface of a machined spiral bevel gear in a multiprocess machine is presented. Machining strategies and optimal machining parameters were studied, and the roughness model is validated for 3 + 2 axes and 5 continuous axes machining strategies.
A High-Dynamic-Range Switched-Capacitor Sigma-Delta ADC for Digital Micromechanical Vibration Gyroscopes
Authors: Lv Risheng , Chen Weiping , Liu Xiaowei
Published: July 2018

This paper presents a multi-stage noise shaping (MASH) switched-capacitor (SC) sigma-delta (ΣΔ) analog-to-digital converter (ADC) composed of an analog modulator with an on-chip noise cancellation logic and a reconfigurable digital decimator for MEMS digital gyroscope applications. A MASH 2-1-1 structure is employed to guarantee an absolutely stable modulation system. Based on the over-sampling and noise-shaping techniques, the core modulator architecture is a cascade of three single-loop stages containing feedback paths for systematic optimization to avoid deterioration in conversion accuracy caused by capacitor mismatch. A digital noise cancellation logic is also included to eliminate residual quantization errors in the former two stages, and those in the last stage are shaped by a fourth-order modulation. A multi-rate decimator follows the analog modulator to suit variable gyroscope bandwidth. Manufactured in a standard 0.35 μm CMOS technology, the whole chip occupies an area of 3.8 mm2. Experimental results show a maximum signal-to-noise ratio (SNR) of 100.2 dB and an overall dynamic range (DR) of 107.6 dB, with a power consumption of 3.2 mW from a 5 V supply. This corresponds to a state-of-the-art figure-of-merit (FoM) of 165.6 dB.
14 MeV Neutrons for 99Mo/99mTc Production: Experiments, Simulations and Perspectives
Authors: Capogni Marco , Pietropaolo Antonino , Quintieri Lina , Angelone Maurizio , Boschi Alessandra , Capone Mauro , Cherubini Nadia , De Felice Pierino , Dodaro Alessandro , Duatti Adriano , Fazio Aldo , Loreti Stefano , Martini Petra , Pagano Guglielmo , Pasquali Micol , Pillon Mario , Uccelli Licia , Pizzuto Aldo
Published: July 2018

Background: the gamma-emitting radionuclide Technetium-99m (99mTc) is still the workhorse of Single Photon Emission Computed Tomography (SPECT) as it is used worldwide for the diagnosis of a variety of phatological conditions. 99mTc is obtained from 99Mo/99mTc generators as pertechnetate ion, which is the ubiquitous starting material for the preparation of 99mTc radiopharmaceuticals. 99Mo in such generators is currently produced in nuclear fission reactors as a by-product of 235U fission. Here we investigated an alternative route for the production of 99Mo by irradiating a natural metallic molybdenum powder using a 14-MeV accelerator-driven neutron source. Methods: after irradiation, an efficient isolation and purification of the final 99mTc-pertechnetate was carried out by means of solvent extraction. Monte Carlo simulations allowed reliable predictions of 99Mo production rates for a newly designed 14-MeV neutron source (New Sorgentina Fusion Source). Results: in traceable metrological conditions, a level of radionuclidic purity consistent with accepted pharmaceutical quality standards, was achieved. Conclusions: we showed that this source, featuring a nominal neutron emission rate of about 1015 s−1, may potentially supply an appreciable fraction of the current 99Mo global demand. This study highlights that a robust and viable solution, alternative to nuclear fission reactors, can be accomplished to secure the long-term supply of 99Mo.
A Rapid Bacteriophage DNA Extraction Method
Authors: Jakočiūnė Džiuginta , Moodley Arshnee
Published: July 2018

Bacteriophages (phages) are intensely investigated as non-antibiotic alternatives to circumvent antibiotic resistance development as well as last resort therapeutic options against antibiotic resistant bacteria. As part of gaining a better understanding of phages and to determine if phages harbor putative virulence factors, whole genome sequencing is used, for which good quality phage DNA is needed. Traditional phage DNA extraction methods are tedious and time consuming, requiring specialized equipment e.g., an ultra-centrifuge. Here, we describe a quick and simple method (under four hours) to extract DNA from double stranded DNA (dsDNA) phages at titers above 1.0 × 1010 plaque-forming units (PFU)/mL. This DNA was suitable for library preparation using the Nextera XT kit and sequencing on the Illumina MiSeq platform.
Ultraviolet Weathering Performance of High-Density Polyethylene/Wood-Flour Composites with a Basalt-Fiber-Included Shell
Authors: Nguyen Van Dinh , Hao Jianxiu , Wang Weihong
Published: July 2018

In this study, high-density polyethylene (HDPE)/wood-flour composites with a basalt fiber (BF)-reinforced shell were prepared by coextrusion. After exposing these composites to ultraviolet weathering for 2000 h, their performances were examined from their measurements of color, surface morphology, and chemical properties. As a control, UV326 was also added to the shell formula. The weathered surface was characterized by scanning electron microscopy, Fourier transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy. The results revealed that the shells filled with 8% and 12% BF exhibited low lightness and color change in comparison to those filled with UV326 for a limited duration. The composite shells with the combined BF and UV326 exhibited the least discoloration and surface cracks. FTIR spectra revealed that the oxidation of the composites increases with the duration of exposure to the assessment of the carbonyl group concentration on the surface. The combination of BF and UV326 revealed a synergistic effect on the alleviation of the photooxidation of wood-plastic composite shell layers, verifying the UV-shielding effect.
Intercultural Struggle and the Targeting of Noncombatants: The Case of the Islamic State
Authors: Moret Ross , Burgin Simone
Published: July 2018

The prohibition against targeting noncombatants is a long-held commitment in both Muslim and Western military ethics. Nevertheless, some militant Muslim groups, and particularly the Islamic State, have created ever-widening space for attacking those traditionally considered immune from targeting in military operations. Our essay uses two theoretical apparatuses developed in social psychology—cultural cognition and moral foundations theory—to explain how certain aspects of post-9/11 tactics on the part of the United States and its allies have contributed to this phenomenon. We also use these same tools to show that similar dynamics work to contribute to the rightwing backlash against Muslims in the United States.
Perspectives on Reincarnation: Hindu, Christian, and Scientific—Editor’s Introduction
Authors: Long Jeffery D.
Published: July 2018

n/a
Dōgen and the Feminine Presence: Taking a Fresh Look into His Sermons and Other Writings
Authors: Yusa Michiko
Published: July 2018

Dōgen’s gender-egalitarian stance on women to attain awakening in their zazen practice is well known. At the same time, a nagging suspicion lingers on among some scholars that he grew increasingly misogynistic in his old age. In this present study, which focuses on Dōgen’s sermons compiled in the Record of Eihei (Eihei kōroku), the Shōbōgenzō, and other writings related to women, we find that even after Dōgen moved to Eiheiji, his stance on women remained consistent. Not only did he readily respond to his female disciples’ requests to give special sermons in memory of their parents, but also positively saw women’s presence in the development of the Buddhist tradition. Through this study it also becomes clear that Dōgen came to embrace a more flexible view on filial piety in his later years, as he deepened his reflection on this matter—the sense of gratitude one feels for one’s parents is concomitant with nurturing one’s compassion. The aspect of compassion that sustained Dōgen’s life of teaching begins to loom large. It was his Chinese master Nyojō (Rujing) who emphasized compassion as the pillar of the zazen practice. Two sermons Dōgen delivered on the anniversary of his father’s death, moreover, have given the scholars new information concerning his parentage. The focus on the aspect of "feminine presence” in Dōgen inadvertently (or naturally?) leads to the heart of Dōgen’s own identity.
A Privacy Preserving Scheme for Nearest Neighbor Query
Authors: Wang Yuhang , Tian Zhihong , Zhang Hongli , Su Shen , Shi Wei
Published: July 2018

In recent years, location privacy concerns that arise when using the nearest neighbor query services have gained increasing attention, as such services have become pervasive in mobile social networks devices and the IoT environments. State-of-the-art privacy preservation schemes focus on the obfuscation of the location information, which has suffered from various privacy attacks and the tradeoff of the quality of service. By noticing the fact that the user’s location could be replaced by their surrounding wireless sensor infrastructures in proximity, in this paper, we propose a wireless sensor access point-based scheme for the nearest neighbor query, without using the location of the user. Then, a noise-addition-based method that preserves user’s location privacy was proposed. To further strengthen the adaptability of the approach to real-world environments, several performance-enhancing methods are introduced, including an R-tree-based Noise-Data Retrieval Algorithm (RNR), and a nearest neighbor query method based on our research. Both performance and security evaluations are conducted to validate our approach. The results show the effectiveness and the practicality of our work.
Utilization of Inexpensive Carbon-Based Substrates as Platforms for Sensing
Authors: Tran Minh , Fallatah Ahmad , Whale Alison , Padalkar Sonal
Published: July 2018

Gold (Au) has been widely used as a material for Surface Enhanced Raman Spectroscopy (SERS) due to its plasmonic properties, stability and biocompatibility. Conventionally for SERS application, Au is deposited on a rigid substrate such as glass or silicon. The rigid substrates severely limit analyte collection efficiency as well as portability. Here, flexible substrates like carbon cloth and carbon paper were investigated as potential substrate candidates for SERS application. The flexible substrates were coated with Au nanostructures by electrodeposition. Model analyte, Rhodamine 6G was utilized to demonstrate the capabilities of the flexible SERS substrates. Additionally, the pesticide paraoxon was also detected on the flexible SERS substrates as well as on a real sample like the apple fruit.
Intrusion Detection and Prevention in CoAP Wireless Sensor Networks Using Anomaly Detection
Authors: Granjal Jorge , Silva João M. , Lourenço Nuno
Published: July 2018

It is well recognized that security will play a major role in enabling most of the applications envisioned for the Internet of Things (IoT). We must also note that most of such applications will employ sensing and actuating devices integrated with the Internet communications infrastructure and, from the minute such devices start to support end-to-end communications with external (Internet) hosts, they will be exposed to all kinds of threats and attacks. With this in mind, we propose an IDS framework for the detection and prevention of attacks in the context of Internet-integrated CoAP communication environments and, in the context of this framework, we implement and experimentally evaluate the effectiveness of anomaly-based intrusion detection, with the goal of detecting Denial of Service (DoS) attacks and attacks against the 6LoWPAN and CoAP communication protocols. From the results obtained in our experimental evaluation we observe that the proposed approach may viably protect devices against the considered attacks. We are able to achieve an accuracy of 93% considering the multi-class problem, thus when the pattern of specific intrusions is known. Considering the binary class problem, which allows us to recognize compromised devices, and though a lower accuracy of 92% is observed, a recall and an F_Measure of 98% were achieved. As far as our knowledge goes, ours is the first proposal targeting the usage of anomaly detection and prevention approaches to deal with application-layer and DoS attacks in 6LoWPAN and CoAP communication environments.
A Doppler-Tolerant Ultrasonic Multiple Access Localization System for Human Gait Analysis
Authors: Ashhar Karalikkadan , Khyam Mohammad Omar , Soh Cheong Boon , Kong Keng He
Published: July 2018

Ranging based on ultrasonic sensors can be used for tracking wearable mobile nodes accurately for a long duration and can be a cost-effective method for human movement analysis in rehabilitation clinics. In this paper, we present a Doppler-tolerant ultrasonic multiple access localization system to analyze gait parameters in human subjects. We employ multiple access methods using linear chirp wave-forms and narrow-band piezoelectric transducers. A Doppler shift compensation Technique is also incorporated without compromising on the tracking accuracy. The system developed was used for tracking the trajectory of both lower limbs of five healthy adults during a treadmill walk. An optical motion capture system was used as the reference to compare the performance. The average Root Mean Square Error values between the 3D coordinates estimated from the proposed system and the reference system while tracking both lower limbs during treadmill walk experiment by 5 subjects were found to be 16.75, 14.68 and 20.20 mm respectively along X, Y and Z-directions. Errors in the estimation of spatial and temporal parameters from the proposed system were also quantified. These promising results show that narrowband ultrasonic sensors can be utilized to accurately track more than one mobile node for human gait analysis.
Application-Aware Anomaly Detection of Sensor Measurements in Cyber-Physical Systems
Authors: Ghafouri Amin , Laszka Aron , Koutsoukos Xenofon
Published: July 2018

Detection errors such as false alarms and undetected faults are inevitable in any practical anomaly detection system. These errors can create potentially significant problems in the underlying application. In particular, false alarms can result in performing unnecessary recovery actions while missed detections can result in failing to perform recovery which can lead to severe consequences. In this paper, we present an approach for application-aware anomaly detection (AAAD). Our approach takes an existing anomaly detector and configures it to minimize the impact of detection errors. The configuration of the detectors is chosen so that application performance in the presence of detection errors is as close as possible to the performance that could have been obtained if there were no detection errors. We evaluate our result using a case study of real-time control of traffic signals, and show that the approach outperforms significantly several baseline detectors.
A Generalized Solution of Bianchi Type-V Models with Time-Dependent G and Λ
Authors: Alfedeel Alnadhief H. A. , Abebe Amare , Gubara Hussam M.
Published: July 2018

We study the homogeneous but anisotropic Bianchi type-V cosmological model with time-dependent gravitational and cosmological “constants”. Exact solutions of the Einstein field equations (EFEs) are presented in terms of adjustable parameters of quantum field theory in a spatially curved and expanding background. It has been found that the general solution of the average scale factor a as a function of time involved the hypergeometric function. Two cosmological models are obtained from the general solution of the hypergeometric function and the Emden–Fowler equation. The analysis of the models shows that, for a particular choice of parameters in our first model, the cosmological “constant” decreases whereas the Newtonian gravitational “constant” increases with time, and for another choice of parameters, the opposite behaviour is observed. The models become isotropic at late times for all parameter choices of the first model. In the second model of the general solution, both the cosmological and gravitational “constants” decrease while the model becomes more anisotropic over time. The exact dynamical and kinematical quantities have been calculated analytically for each model.
Artificial bioconjugates with naturally occurring linkages: the use of phosphodiester
Authors: Shoji Takao , Fukutomi Hiroki , Okada Yohei , Chiba Kazuhiro
Published: July 2018

Artificial orthogonal bond formations such as the alkyne–azide cycloaddition have enabled selective bioconjugations under mild conditions, yet naturally occurring linkages between native functional groups would be more straightforward to elaborate bioconjugates. Herein, we describe the use of a phosphodiester bond as a versatile option to access various bioconjugates. An opposite activation strategy, involving 5’-phosphitylation of the supported oligonucleotides, has allowed several biomolecules that possess an unactivated alcohol to be directly conjugated. It should be noted that there is no need to pre-install artificial functional groups and undesired and unpredictable perturbations possibly caused by bioconjugation can be minimized.
A WISE Survey of Circumstellar Disks in the Upper Scorpius Association*
Authors: Esplin T. L. , Luhman K. L. , Miller E. B. , Mamajek E. E.
Published: July 2018

We have performed a survey for new members of the Upper Sco association that have circumstellar disks using mid-infrared photometry from the Wide-field Infrared Survey Explorer (WISE). Through optical and near-infrared spectroscopy, we have confirmed 185 candidates as likely members of Upper Sco with spectral types ranging from mid-K to M9. They comprise ∼36% of the known disk-bearing members of the association. We also have compiled all available mid-infrared photometry from WISE and the Spitzer Space Telescope for the known members of Upper Sco, resulting in a catalog of data for 1608 objects. We have used these data to identify the members that exhibit excess emission from disks and we have classified the evolutionary stages of those disks with criteria similar to those applied in our previous studies of Taurus and Upper Sco. Among 484 members with excesses in at least one band (excluding five Be stars), we classify 296 disks as full, 66 as evolved, 19 as transitional, 22 as evolved or transitional, and 81 as evolved transitional or debris. Many of these disks have not been previously reported, including 129 full disks and 50 disks that are at more advanced evolutionary stages.
Feasibility of a Resonance-based Planet Nine Search
Authors: Bailey Elizabeth , Brown Michael E. , Batygin Konstantin
Published: July 2018

It has been proposed that mean-motion resonances (MMRs) between Planet Nine and distant objects of the scattered disk might inform the semimajor axis and instantaneous position of Planet Nine. Within the context of this hypothesis, the specific distribution of occupied MMRs largely determines the available constraints. Here we characterize the behavior of scattered Kuiper Belt objects arising in the presence of an eccentric Planet Nine (e
9 ∈ 0.1, 0.7), focusing on relative sizes of populations occupying particular commensurabilities. Highlighting the challenge of predicting the exact MMR of a given object, we find that the majority of resonant test particles have period ratios with Planet Nine other than those of the form P
9/P = N/1, N/2

. Taking into account the updated prior distribution of MMRs outlined in this work, we find that the close spacing of high-order resonances, as well as chaotic transport, preclude resonance-based Planet Nine constraints from current observational data.
Probing the Hill Sphere of (486958) 2014 MU69: HST FGS Observations during the 2017 July 17 Stellar Occultation
Authors: Kammer Joshua A. , Becker Tracy M. , Retherford Kurt D. , Stern S. Alan , Olkin Catherine B. , Buie Marc W. , Spencer John R. , Bosh Amanda S. , Wasserman Lawrence H.
Published: July 2018

We observed the 2017 July 17 stellar occultation of HD 168233 by the Kuiper Belt Object (486958) 2014 MU69, the close flyby target of the extended New Horizons mission. Rather than capture a solid body occultation by the KBO itself, our program aimed to constrain the opacity of rings, moons, or other debris in the nearby environment. We used the Hubble Space Telescope Fine Guidance Sensors (HST FGS) instrument in TRANS F583W mode to collect 40 Hz time resolution photometry of the stellar occultation star for two HST orbits during this observation. We present the results of reduction and calibration of the HST FGS photometry, and set upper limits on rings or other dust opacity within the Hill sphere of (486958) 2014 MU69 at distances ranging from ∼20000 km to ∼75000 km from the main body.
Rotation and Magnetism of Massive Stellar Cores
Authors: Kissin Yevgeni , Thompson Christopher
Published: July 2018

The internal rotation and magnetism of massive stars are considered in response to (i) the inward pumping of angular momentum through deep and slowly rotating convective layers, and (ii) the winding up of a helical magnetic field in radiative layers. Field winding can transport angular momentum effectively even when the toroidal field is limited by kinking. Magnetic helicity is pumped into a growing radiative layer from an adjacent convective envelope (or core). The receding convective envelope that forms during the early accretion phase of a massive star is the dominant source of helicity in its core, yielding a 1012 − 1013 G polar magnetic field in a collapsed neutron star (NS) remnant. Using MESA models of various masses, we find that the NS rotation varies significantly, from P
NS ∼ 0.1–1 s in a 13 M
⊙ model to P
NS ∼ 2 ms in a 25 M
⊙ model with an extended convective core. Stronger inward pumping of angular momentum is found in more massive stars, due to the growing thickness of the convective shells that form during the later stages of thermonuclear burning. On the other hand, stars that lose enough mass to form blue supergiants in isolation end up as very slow rotators. The tidal spin-up of a 40 M
⊙ star by a massive binary companion is found to dramatically increase the spin of the remnant black hole, allowing a rotationally supported torus to form during the collapse. The implications for post-collapse decay or amplification of the magnetic field are also considered.
The Metallicity Dependence of the H i Shielding Layers in Nearby Galaxies
Authors: Schruba Andreas , Bialy Shmuel , Sternberg Amiel
Published: July 2018

We investigate the metallicity dependence of H i surface densities in star-forming regions along many lines of sight within 70 nearby galaxies, probing kiloparsec to 50 pc scales. We employ H i, SFR, stellar mass, and metallicity (gradient) measurements from the literature, spanning a wide range (5 dex) in stellar and gas mass and (1.6 dex) in metallicity. We consider metallicities as observed, or rescaled to match the mass–metallicity relation determined for SDSS galaxies. At intermediate to high metallicities (0.3–2 times solar), we find that the H i surface densities saturate at sufficiently large total gas surface density. The maximal H i columns vary approximately inversely with metallicity, and show little variation with spatial resolution, galactocentric radius, or among galaxies. In the central parts of massive spiral galaxies, the H i gas is depressed by factors of ∼ 2. The observed behavior is naturally reproduced by metallicity dependent shielding theories for the H i-to-H2 transitions in star-forming galaxies. We show that the inverse scaling of the maximal H i columns with metallicity suggests that the area filling fraction of atomic-molecular complexes in galaxies is of the order of unity, and weakly dependent on metallicity.
Discovery of 21 New Changing-look AGNs in the Northern Sky
Authors: Yang Qian , Wu Xue-Bing , Fan Xiaohui , Jiang Linhua , McGreer Ian , Shangguan Jinyi , Yao Su , Wang Bingquan , Joshi Ravi , Green Richard , Wang Feige , Feng Xiaotong , Fu Yuming , Yang Jinyi , Liu Yuanqi
Published: July 2018

The rare case of changing-look (CL) active galactic nuclei (AGNs), with the appearance or disappearance of broad Balmer emission lines within a few years, challenges our understanding of the AGN unified model. We present a sample of 21 new CL AGNs at

0.08
<
z
<
0.58

, which doubles the number of such objects known to date. These new CL AGNs were discovered in various ways, from (1) repeat spectra in the SDSS, (2) repeat spectra in the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) and SDSS, and (3) photometric variability and new spectroscopic observations. We use the photometric data from surveys, including the SDSS imaging survey, the Pan-STARRS1, the DESI Legacy imaging survey, the Wide-field Infrared Survey Explorer (WISE), the Catalina Real-time Transient Survey, and the Palomar Transient Factory. The estimated upper limits of the transition timescale of the CL AGNs in this sample spans from 0.9 to 13 years in the rest-frame. The continuum flux in the optical and mid-infrared becomes brighter when the CL AGNs turn on, or vice versa. Variations of more than 0.2 mag in the W1 band were detected in 15 CL AGNs during the transition. The optical and mid-infrared variability is not consistent with the scenario of variable obscuration in 10 CL AGNs at more than the 3σ confidence level. We confirm a bluer-when-brighter trend in the optical. However, the mid-infrared WISE colors W1–W2 become redder when the objects become brighter in the W1 band, possibly due to a stronger hot dust contribution in the W2 band when the AGN activity becomes stronger. The physical mechanism of type transition is important for understanding the evolution of AGNs.
X-Ray Variability from the Ultraluminous Black Hole Candidate X-Ray Binary in the Globular Cluster RZ 2109
Authors: Dage Kristen C. , Zepf Stephen E. , Bahramian Arash , Kundu Arunav , Maccarone Thomas J. , Peacock Mark B.
Published: July 2018

We present the results of long-term monitoring of the X-ray emission from the ultraluminous X-ray source XMMU J122939.9+075333 in the extragalactic globular cluster RZ2109. The combination of the high X-ray luminosity, short-term X-ray variability, X-ray spectrum, and optical emission suggests that this system is likely an accreting black hole in a globular cluster. To study the long-term behavior of the X-ray emission from this source, we analyze both new and archival Chandra and XMM-Newton observations, covering 16 years from 2000 to 2016. For all of these observations, we fit extracted spectra of RZ2109 with xspec models. The spectra are all dominated by a soft component, which is very soft with typical fit temperatures of T ≃ 0.15 keV. The resulting X-ray fluxes show strong variability on short and long timescales. We also find that the X-ray spectrum often shows no significant change even with luminosity changes as large as a factor of five.
Characterization of Stellar and Substellar Members in the Coma Berenices Star Cluster
Authors: Tang Shih-Yun , Chen W. P. , Chiang P. S. , Jose Jessy , Herczeg Gregory J. , Goldman Bertrand
Published: July 2018

We have identified stellar and substellar members in the nearby star cluster Coma Berenices, using photometry, proper motions, and distances of a combination of 2MASS, UKIDSS, URAT1, and Gaia/DR2 data. Those with Gaia/DR2 parallax measurements provide the most reliable sample to constrain the distance, averaging 86.7 pc with a dispersion of 7.1 pc, and age of ∼800 Myr, of the cluster. This age is older than the 400–600 Myr commonly adopted in the literature. Our analysis, complete within 5° of the cluster radius, leads to identification of 192 candidates, among which, after field contamination is considered, about 148 are true members. The members have J ∼ 3 mag to ∼17.5 mag, corresponding to stellar masses 2.3–0.06 M
☉. The mass function of the cluster peaks around 0.3 M
☉, and in the sense of

, where N is the number of members and m is stellar mass, with a slope α ≈ 0.49 ± 0.03 in the mass range 0.3–2.3 M
☉. This is much shallower than that of the field population in the solar neighborhood. The slope α = −1.69 ± 0.14 from 0.3 M
☉ to 0.06 M
☉, the lowest mass in our sample. The cluster is mass-segregated and has a shape elongated toward the Galactic plane. Our list contains nine substellar members, including three new discoveries of an M8, an L1, and an L4 brown dwarfs, extending from the previously known coolest members of late-M types to even cooler types.
The Core Mass Function across Galactic Environments. II. Infrared Dark Cloud Clumps
Authors: Liu Mengyao , Tan Jonathan C. , Cheng Yu , Kong Shuo
Published: July 2018

We study the core mass function (CMF) within 32 dense clumps in seven infrared dark clouds (IRDCs) with the Atacama Large Millimeter/submillimeter Array via 1.3 mm continuum emission at a resolution of ∼1″. We have identified 107 cores with the dendrogram algorithm, with a median radius of about 0.02 pc. Their masses range from 0.261 to 178 M
⊙. After applying completeness corrections, we fit the combined IRDC CMF with a power law of the form

and derive an index of α ≃ 0.86 ± 0.11 for M ≥ 0.79 M
⊙ and α ≃ 0.70 ± 0.13 for M ≥ 1.26 M
⊙, which is a significantly more top-heavy distribution than the Salpeter stellar initial mass function index of 1.35. We also make a direct comparison of these IRDC clump CMF results to those measured in the more evolved protocluster G286 derived with similar methods, which have α ≃ 1.29 ± 0.19 and 1.08 ± 0.27 in these mass ranges, respectively. These results provide a hint that, especially for the M ≥ 1.26 M
⊙ range where completeness corrections are modest, the CMF in high pressure, early-stage environments of IRDC clumps may be top-heavy compared to that in the more evolved, global environment of the G286 protoclusters. However, larger samples of cores probing these different environments are needed to better establish the robustness of this potential CMF variation.
Systematic Redshift of the Fe iii UV Lines in Quasars: Measuring Supermassive Black Hole Masses under the Gravitational Redshift Hypothesis
Authors: Mediavilla E. , Jiménez-Vicente J. , Fian C. , Muñoz J. A. , Falco E. , Motta V. , Guerras E.
Published: July 2018

We find that the Fe iii
λλ2039–2113 spectral feature in quasars appears systematically redshifted by amounts accountable under the hypothesis of gravitational redshift induced by the central supermassive black hole (BH). Our analysis of 27 composite spectra from the BOSS survey indicates that the redshift and the broadening of the lines in the Fe iii
λλ2039–2113 blend roughly follow the expected correlation in the weak limit of Schwarzschild geometry for virialized kinematics. Assuming that the Fe iii UV redshift provides a measure of

M

BH

R

Δ
λ

λ

≃

3

2

G

c

2

M

BH

R

and using different estimates of the emitting region size, R (either from gravitational microlensing, reverberation mapping, or from the scaling of size with intrinsic quasar luminosity), we obtain masses for ten objects that are in agreement within uncertainties with previous mass estimates based on the virial theorem. Reverberation mapping estimates of the size of the Fe iii
λλ2039–2113 emitting region in a sample of objects would be needed to confirm the gravitational origin of the measured redshifts. Meanwhile, we present a tentative BH mass scaling relationship based on the Fe iii
λλ2039–2113 redshift useful to measure the BH mass of one individual object from a single spectrum.
A Machine-learning Method for Identifying Multiwavelength Counterparts of Submillimeter Galaxies: Training and Testing Using AS2UDS and ALESS
Authors: An Fang Xia , Stach S. M. , Smail Ian , Swinbank A. M. , Almaini O. , Simpson C. , Hartley W. , Maltby D. T. , Ivison R. J. , Arumugam V. , Wardlow J. L. , Cooke E. A. , Gullberg B. , Thomson A. P. , Chen Chian-Chou , Simpson J. M. , Geach J. E. , Scott D. , Dunlop J. S. , Farrah D. , Werf P. van der , Blain A. W. , Conselice C. , Michałowski M. , Chapman S. C. , Coppin K. E. K.
Published: July 2018

We describe the application of supervised machine-learning algorithms to identify the likely multiwavelength counterparts to submillimeter sources detected in panoramic, single-dish submillimeter surveys. As a training set, we employ a sample of 695 (S
870μm ≳ 1 mJy) submillimeter galaxies (SMGs) with precise identifications from the ALMA follow-up of the SCUBA-2 Cosmology Legacy Survey’s UKIDSS-UDS field (AS2UDS). We show that radio emission, near-/mid-infrared colors, photometric redshift, and absolute H-band magnitude are effective predictors that can distinguish SMGs from submillimeter-faint field galaxies. Our combined radio + machine-learning method is able to successfully recover ∼85% of ALMA-identified SMGs that are detected in at least three bands from the ultraviolet to radio. We confirm the robustness of our method by dividing our training set into independent subsets and using these for training and testing, respectively, as well as applying our method to an independent sample of ∼100 ALMA-identified SMGs from the ALMA/LABOCA ECDF-South Survey (ALESS). To further test our methodology, we stack the 870 μm ALMA maps at the positions of those K-band galaxies that are classified as SMG counterparts by the machine learning but do not have a >4.3σ ALMA detection. The median peak flux density of these galaxies is S
870μm = (0.61 ± 0.03) mJy, demonstrating that our method can recover faint and/or diffuse SMGs even when they are below the detection threshold of our ALMA observations. In future, we will apply this method to samples drawn from panoramic single-dish submillimeter surveys that currently lack interferometric follow-up observations to address science questions that can only be tackled with large statistical samples of SMGs.
L’industrie des constructions navales : un secteur moteur stratégique pour le take-off économique de la Corée du Sud (1945-environs de 2000)
Authors: Barjot Dominique , Park Rang-Ri
Published: July 2018

Après le décollage économique du Japon, la Corée du Sud a elle aussi connu un « miracle » économique. Plus encore qu’au Japon, les constructions navales ont constitué un secteur moteur, au caractère stratégique marqué, du décollage (ou take-off ) économique coréen. Avant l’électronique et grâce au soutien d’une puissante sidérurgie d’abord d’État, puis privatisée (1998-2000), les constructions navales jouèrent bien le rôle d’un secteur leader. Elles constituèrent l’une des clefs essentielles du take-off du pays, un instrument déterminant du rattrapage et un argument décisif pour un pays suiveur désireux de compenser son retard sur les pays leaders. Les constructions navales coréennes tirèrent avantage de leur étroite proximité avec les plus puissants complexes sidérurgiques du monde. Elles surgirent au premier rang mondial à partir de 2000, en supplantant alors le Japon. Depuis 2009, elles ont opposé une résistance effective et efficace à leurs concurrentes chinoises. Elles le doivent à une main-d’œuvre hautement qualifiée travaillant un grand nombre d’heures et à un excellent positionnement stratégique dans les produits haus de gamme. Ce succès, dans une large mesure, est le fruit d’une étroite coopération entre l’État et les chaebol commencée dans les années 1960.
Tata becoming multinational: a long-term process
Authors: Lanthier Pierre
Published: July 2018

L’économie indienne a connu une croissance remarquable ces dernières décennies. La montée de la grande entreprise et ses avancées hors de l’Inde constituent certainement l’une des manifestations les plus explicites de ce dynamisme. Le groupe Tata est sans doute l’illustration la plus brillante de cette tendance. Lancé au xix e  siècle, ce groupe n’est vraiment devenu multinational qu’à la fin du siècle suivant. En étudiant son évolution ainsi que ses relations avec l’État indien, le présent article entend démontrer que la multinationalisation de Tata ne résulte pas seulement des réformes de 1991 en Inde, mais aussi de stratégies de long terme qui ont permis au groupe d’avoir accès aux marchés internationaux.
La « gestion » à l’époque romaine : naissance d’une nouvelle catégorie de l’action collective
Authors: Crété Moïra , Hatchuel Armand , Weil Benoît
Published: July 2018

Cet article souhaite établir les origines de la notion de « gestion » et montrer que dans la pensée politique romaine figuraient déjà les fondements de la forme moderne de cette catégorie : rationalité, responsabilité, bienveillance et efficacité. Partant d’une analyse des usages du verbe gerere et de ses dérivés dans les sources anciennes, cette étude nous permet de comprendre comment, entre le I er siècle avant J.-C. et le III e siècle après J.-C., les penseurs et lettrés, les empereurs et dirigeants, mais aussi le peuple des gouvernés, définissaient la gestion et plus particulièrement la « bonne gestion » ; elle retrace les étapes théoriques, idéologiques et pratiques de la construction d’une catégorie politique et gouvernementale originale qui s’invente à l’époque romaine.
Implications éthiques du Comité d’expert donneur vivant dans le don d’organe
Authors: Pipien Isabelle
Published: July 2018

Pour les greffes d’organes, le donneur vivant est un donneur optimal. En effet, la possibilité de réaliser le prélèvement et la greffe dans le cadre d’une programmation réglée permet de mieux maîtriser l’évaluation des risques, l’adéquation du donneur au receveur et surtout le temps d’ischémie du greffon entre son prélèvement et sa greffe. Les enjeux ne sont pas moindres dans le domaine de la greffe de cellules souches hématopoïétiques (CSH). En effet, l’extrême rareté de la compatibilité immunologique en population générale conduit à rechercher le donneur dans la famille. C’est la seule situation dans laquelle le don peut être fait par un enfant.
What Kind of E-Mail Information Is More Effective in Communicating with the Client? Application of Game Theory
Authors: Sánchez Torres Javier A. , Rivera González Julián A. , De Maestrich Jorba Lambert
Published: July 2018

Using game theory, this study analyzed clients’ decisions after receiving digital relational marketing campaigns via email for two types of products: apparel and electronics-music-video. The objectives were to analyze the promotional and relational e-mails to discern which of the two is most effective in achieving marketing objectives and short-term business objectives. A cross-sectional study was carried out, with samples from Spain and Colombia, starting from a total of 400 surveys, a game based on the Nash Theory was proposed, having as a more important result, regardless of the type of email received by the client, the last action of the client will be marked as "spam". Likewise, differences were found by country and by gender depending on the type of product and no conclusive differences were found on which type of communication (promotional or differential) is better received by the client.
Measuring Change as a Result of Participation in Educational Activities
Authors: Graebe Jennifer
Published: July 2018

This article addresses how nurse planners and nursing professional development practitioners can meet educational design process criterion 7 in the American Nurses Credentialing Center primary accreditation criteria that also correspond with the Association for Nursing Professional Development
Scope and Standards of Practice
standard 6.

J Contin Educ Nurs
. 2018;49(8):340–342.
The Importance of Role Clarity for Development of Interprofessional Teams
Authors: Bittner Callie Anne
Published: July 2018

Members of an effective inter-professional team must work cooperatively to blend individual skills and leadership responsibilities and achieve the best outcome for the patient. Each member of an inter-professional team contributes to the diversity of needs required in patient care. Clarity of role responsibilities is essential to improving patient care and interprofessional team success.

J Contin Educ Nurs
. 2018;49(8):345–347.
Enhancing Graduate Nurse Transition: Report of the Evaluation of the Clinical Honors Program
Authors: Bull Rosalind , Shearer Toniele , Youl Loren , Campbell Steve
Published: July 2018

Background:

The Bachelor of Nursing with Clinical Honors (Transition to Practice) program supports the transition of nursing graduates. It is the first initiative of its kind in Australia and is designed to integrate with existing graduate transition programs. The program is clinically focused, collaborative, and accessible online.

Method:

A 2015 evaluation comprised a program performance review, a questionnaire-based research component, and participating partner interviews. Quantitative and qualitative data were collected and analyzed.

Results:

The student and graduate surveys indicate that the program promotes evidence-based practice and learning, critical thinking, and reflection. Medication safety, its link to the national quality and safety agenda, and the promotion of safe medication administration were highlighted. The results of the industry partner interviews indicate that the program supports the missions and values of the participating organizations.

Conclusion:

The Clinical Honors program provides an evidence-based, theoretically structured program supporting transition to practice for new RNs. It supports the development of critical thinking, reflection, skill enhancement, and confidence.

J Contin Educ Nurs
. 2018;49(8):348–355.
Improving Nurses' Communication During Patient Transfer: A Pilot Study
Authors: Padgett Tonja Marie
Published: July 2018

A major practice problem is that multiple handoff tools can lead to missed information, adverse patient events, and decreased patient safety. A proper comprehensive patient handoff is a key component to patient safety. The standardization of the handoff process can be a safeguard to lower the risk of adverse patient events. A pilot study was implemented to ascertain whether educating nurses on the expected procedure and documentation of the handoff report when transferring a patient emphasizing the use of SBAR (
S
ituation,
B
ackground,
A
ssessment,
R
ecommendation) positively affected the nurses' perceptions of communication during patient transfers. The results brought forth many opportunities for improvement at the practice hospital.

J Contin Educ Nurs
. 2018;49(8):378–384.
Bipolar Injury of the Clavicle
Authors: Lee Ki Won , Bae Joo-Yul , Seo Dong-Kyo , Ha Jung-Ki , Ra Ho Jong , Kim Joon Hee , Ho Byeong Cheol
Published: July 2018

Eleven patients with bipolar clavicle injuries, including dislocation of both ends of the clavicle, dislocation of the sternoclavicular joint with distal clavicle fracture, dislocation of the acromioclavicular joint with medial clavicle fracture, and segmental fracture of the clavicle, were retrospectively reviewed. The purpose of this study was to report the clinical outcomes and a literature review of bipolar clavicle injury. Nonoperative treatment was performed for 5 patients and surgical treatment for 6 patients. The fracture or dislocation of the lateral end of the clavicle was fixed with a hook plate, and closed reduction of the medial end was performed; if the dislocation was still present, open reduction and anterior sternoclavicular ligament repair was performed. Visual analog scale pain score, Constant score, active range of motion, and radiological images were evaluated. The mean visual analog scale pain score for all patients was 0.7±0.9 (range, 0–2). The mean Constant score for all patients was 89.7±7.6 (range, 72–96). The mean Constant score was 84.2±8.5 (range, 72–96) for conservatively treated patients and 94.3±1.9 (range, 92–96) for surgically treated patients. The mean Constant score was 83.4±7.2 (range, 72–92) for patients in whom optimal reduction of 1 or both ends was not achieved. Residual pain or deformity was seen in 5 patients. The authors suggest operative treatment of bipolar clavicle injuries in younger, active patients when anatomical reduction cannot be achieved and residual deformity, pain, or functional limitations are unacceptable. [Orthopedics. 2018; 41(5):e681–e688.]
Faster R-CNN for Object Location in a Virtual Environment for Sorting Task
Authors: Pinzón Arenas Javier O. , Jiménez Robinson , Useche Murillo Paula C.
Published: July 2018

This paper presents the implementation of a mobile robotic arm simulation whose task is to order different objects randomly distributed in a workspace. To develop this task, it is used a Faster R-CNN which is going to identify and locate the disordered elements, reaching 99% accuracy in validation tests and 100% in real-time tests, i.e. the robot was able to collect and locate all the objects to be ordered, taking into account that the virtual environment is controlled and the size of the input image obtained from the workspace to be entered to the network should be 700x525 px.
Response Analysis of a Plate Structure under Double Source Excitation by FBG Sensors
Authors: Li Cai , Xiao Huang , Lijun Meng
Published: July 2018

The nondestructive assessments play a key role for condition monitoring of in-service structures. At present, many non-destructive testing methods have been widely applied, but actual operation environment has the characteristics of multiple random, which makes the effects of multiple excitation sources. While the traditional detection methods only consider the main sources of motivation and ignore the other sources, which will bring a bigger error. So the multi-source excitation method has practical significance. Here this paper puts forward a double source excitation technique for plate structure based on fiber Bragg grating sensor, which is used to receive the waves in the plate. First, measuring principle of double source excitation and demodulation principle of the FBG sensor are introduced. Then simulation analysis in the double source excitation field is devoted, whose results lay the foundation for the detection in the plate. On this basis, the experimental system is built and the influence of different parameters are analyzed such as frequency, phase. Then this double source excitation-FBG sensing technique is applied to damage detection by envelope analysis, whose result show that this double source excitation-FBG sensing method for the plate structure is sensitive to crack damage.
Research on Picking Identification and Positioning System Based on IOT
Authors: Biqing Li , Shiyong Zheng , Ming Qiu
Published: July 2018

The key and necessary condition for accurate picking are to identify and locate the target fruit accurately. This paper focuses on the development of picking robot, mainly through two aspects: software and hardware. Moreover, it mainly consists of the binocular vision system and the camera calibration model. Based on these two core components, it can complete the function of identification and positioning. The results show that it can accurately locate the target location in the aspect of recognition function. What is more, its error is no more than 8mm, and its picking rate is over 96%. It shows high precision and efficiency, which plays a decisive role in the realization of picking automation.