bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improving Lighting Performance of High Color Temperature White LED Packages Using (La,Ce,Tb) PO4:Ce:Tb Phosphor
Authors: Nguyen Thi Phuong Thao , Nguyen Doan Quoc Anh , Voznak Miroslav , Le Van Tho 
Published: March 2018

Enhancement of the color uniformity, the lumen output of the multi-chip white LED lamps (MCW-LEDs) at high color correlated temperature is a big challenge for researchers. However, an innovative LED lamp designed with a phosphor compounding, which combines (La,Ce,Tb) PO4:Ce:Tb (LaTb) green phosphor with YAG: CE yellow phosphor, is proposed as an optimal solution to this requirement. Index, using LaTb green phosphor into MCWLEDs could bring a superior optical performance for MCW-LEDs. It is found that the lumen output of this new MCW-LED at a high color temperature of 8500 K significantly improves up to 1600 lm compared to MCW-LEDs without LaTb phosphor. The simulation results demonstrated that the CCT deviation sharply decreases from 9000 to 1000 at the LaTb concentration range from 0 to 1.8 %, while the Color Rendering Index ability (CRI) and the Color Quality Scale (CQS) slightly decrease. To obtain the highest lumen output and the best color uniformity, the particle size range within 6 - 8 µm should be suggested. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Control of Pipe Cutting Robot: A More Effective Method
Authors: Diep Quoc Bao 
Published: March 2018

This paper presents a pipe cutting Robot system with two different cutting methods: the method with the end-effector moves on cutting path and direction while the stationary pipe and the method with the end-effector moves on a straight line while the rotating pipe to create the desired cutting path and direction. The cutting trajectory is described, the Robot model is constructed, solving the inverse kinematics, planning the trajectory of motion, simulating and controlling Robot in Matlab, and designing the experimental Robot to verify. The results of the two methods are compared to point out a better one. This research builds up an important foundation for choosing an effective method for pipe cutting Robot in industry. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Analisis Resiko Penangkar Benih Padi Pada Program Desa Mandiri Benih Di Kabupaten Pringsewu
Authors: Susanti Dyah Rianita 
Published: March 2018

ABSTRACT The objective of this research was to analyze the risk of rice seed breeder in Pringsewu District. The research was conducted in Pringsewu District. The location was determined purposively, considering that Pringsewu Regency was a rice producing center in Lampung Province. Based on the calculation, the study sample consisted of 37 rice breeders and 37 non-breeders. The data collection of this research was conducted in November 2017. This research employed variation coefficient method to analyze risk. The coefficient of variation (CV) is a measure of the relative risk obtained by dividing the standard deviation by the expected value. The results of the research showed that the level of risk of rice farming in Pringsewu regency for non-paddy breeder farmers was higher than paddy farmer breeders.
The Relationship Between Low Birth Weight Neonates And Asphyxia Neonatorum at Ariﬁn Achmad Hospital
Authors: Yanti Juli selvi 
Published: March 2018

ABSTRACT
Asphyxia is breathing difficulty that occurs in newborns. Low birth weight (LBW) neonates often suffer from asphyxia, this are due to surfactant deficiency, incomplete lung growth, weak respiratory muscles, and easily bent ribs, therefore it can not supply oxygen enough of the placenta. Data from Arifin Achmad Hospital showed that the number of neonatal asphyxia includes 15 largest disease as the cause of infant mortality. In 2014 from January to September there were 36 cases of asphyxia of 955 newborns (3.76%). The purpose of this study was to determine the relationship between LBW and asphyxia neonatorum at Arifin Achmad Hospital Riau Province in 2014. This research method used quantitative analytical research and the design was case control. This research was conducted at Arifin Achmad Hospital Riau Province on March 3 until May 3 2015. The population in this study was all newborn babies who born at Arifin Achmad Hospital and samples were 72 respondents which consisted of 36 cases and 36 control. The sampling technique was simple random sampling. Data collection used secondary data by using a checklist sheet, data was processed by computer and data analysis used univariate and bivariate. The results from the chi square test showed that there was a relationship between LBW and asphyxia indicated by p value = 0.002 <0.05. It is expected that health professionals can provide information about the factors related to asphyxia as low birth weight, risk factor of maternal nutritional status to the mother and fetus. In addition, to health workers are also expected to provide information to pregnant women about how to prevent LBW and asphyxia by providing brochures, leaflets and others.
Mother Behavior Prefer Untrained Traditional Birth Attendant As Labor Support Person At Tembilahan Hulu Public Health Center Districts On 2016
Authors: Yati Alhidayati 
Published: March 2018

Background: Maternal Mortality Rate (MMR) is one indicator of health development in Indonesia. Deliveries by health personnel to be very important in efforts to reduce maternal mortality. Coverage of births attended by skilled health personnel at health centers Tembilahan Hulu has yet to reach the target of 90%. Target Health Center Tembilahan Hulu is 80% but reached only 45%. The number of maternal deaths in health centers Hulu 2016 Tembilahan 1 case and the number of infant mortality as much as 5 case, one cause of death is handled by TBAs.
Objective: to know the mother's behavior in selecting birth attendants in health centers working area Tembilahan Hulu.
Design: Qualitative research, to obtain in-depth information about how the Mother Behavior in Choosing Auxiliary Power Delivery at Puskesmas Tembilahan Hulu 2016.
Methods: This study used a qualitative descriptive method, which is an approach to research that revealed certain social situations to describe reality correctly, formed by words based on the techniques of collecting and analyzing relevant data obtained from the natural situation.
Results and Discussion: Research shows that mothers choose birth attendants decision is closely linked to the knowledge, attitudes, social culture, access to health services, family support.
Conclusions: The behavior of mothers in selecting birth attendant is still a lot to TBAs compared to the health worker / midwife.
A FRAMEWORK TOWARDS ENHANCED SUSTAINABLE SYSTEMS INTEGRATION INTO TALL BUILDINGS DESIGN
Authors: Elbakheit Abdel Rahman 
Published: March 2018

Sustainable tall buildings are increasingly under rapid development and scrutiny worldwide. This will pave the way to a new generation of buildings designed in a unique form of Architectural systems integration. That is to say, finding new ways to integrate the systems, finding new common grounds and perhaps more comprehensive optimizations. The significance of integrating sustainable systems within tall buildings is the corner stone in delivering sustainable tall buildings globally. The paper looks into ways and means to better integrate passive and active renewable energy technologies and systems, green and sustainability measures into tall building’s design. Other issues such as architectural Iconography, and heritage and cultural influences on tall building’s design are also mentioned. The objective is to develop a framework for sustainable systems integration in buildings, proposing areas of further integrations customizable to any particular site context. The focus is on key sustainability strategies that drive design solutions to obtain maximum natural lighting, ventilation, heating and cooling, solar electricity/heat generation, possibility of wind energy generation and ground sourced amenities. Some design cases are presented exhibiting these strategies and design options, which clearly demonstrates the potential of tall buildings in creating a promising dense and sustainable future for cities around the globe.
PERSEPSI MASYARAKAT NELAYAN TERHADAP PERANAN PANGLIMA LAOT DI KABUPATEN PIDIE JAYA
Authors: Wardah Eva , Nasruddin Nasruddin , Rosnina Rosnina 
Published: March 2018

Tujuan jangka panjang dalam penelitian ini adalah untuk mengetahui persepsi masyarakat nelayan terhadap peran panglima laot di Kabupaten Pidie Jaya. Secara khususpenelitian ini bertujuan untuk (1) Mengidentifikasi karakteristik masyarakat pesisir diKabupaten Pidie Jaya Provinsi Aceh, (2) Mengetahui dan menganalisis peran PanglimaLaot bagi masyarakat pesisir di kabupaten Pidie Jaya dalam pengelolaan sumber dayapesisir, (3) Mengetahui persepsi masyarakat pesisir terhadap peran Panglima Laot dalampemberdayaan dan pelestarian lingkungan pesisir di Kabupaten Pidie Jaya.Penelitian ini mengunakan metode survey dimana penentuan lokasi ditentukansecara purposive ( sengaja) di Kabupaten Pidie Jaya. Data pimer didapatkan dariresponden melalui wawancara terstruktur (quisioner). Hasil penelitian menunjukkanbahwa masyarakat nelayan dilokasi penelitian mayoritas masih berumur produktif,tingkat pendidikan formal rata-rata SLTP serta pendapatan keluarga yang rendah.Masyarakat nelayan dilokasi penelitian masih berpersepsi bahwa Panglima laot masihberperan dalam kehidupan sosial masyarakat pesisir. Jenjang persepsi tersebut secaraberurut adalah: 1) Peran Panglima Laot dalam menyelesaikan perselisihan danpersengketaan antar nelayan, (2) Peran Panglima Laot dalam mengawasi ketentuanhukum adat laot,(3) Peran Panglima Laot sebagai penghubung antara nelayan denganpihak pemerintah dan (4) Peran panglima laot dalam menjaga dan mengawasi kelestarianlingkungan wilayah pesisir.
URAT South Parallax Results
Authors: Finch Charlie T. , Zacharias Norbert , Jao Wei-Chun 
Published: March 2018

Abstract
We present 916 trigonometric parallaxes and proper motions of newly discovered nearby stars from the United States Naval Observatory Robotic Astrometric Telescope (URAT). Observations were taken at the Cerro Tololo Interamerican Observatory over a 2-year period from 2015 to 2017 October covering the entire sky south of about +25° decl. SPM4 and UCAC4 early epoch catalog data were added to extend the temporal coverage for the parallax and proper motion fit up to 48 years. Using these new URAT parallaxes, optical and near-IR photometry from the AAVSO Photometric All-Sky Survey and Two Micron All-Sky Survey catalogs, we identify possible new nearby dwarfs, young stars, low-metallicity subdwarfs and white dwarfs. Comparison to known trigonometric parallaxes shows a high quality of the URAT-based results confirming the error in parallax of the URAT south parallaxes reported here to be between 2 and 13 mas. We also include additional 729 trigonometric parallaxes from the URAT north 25 pc sample published in Finch & Zacharias here after applying the same criterion as for the southern sample to have a complete URAT 25 pc sample presented in this paper.
K2-231 b: A Sub-Neptune Exoplanet Transiting a Solar Twin in Ruprecht 147
Authors: Curtis Jason Lee , Vanderburg Andrew , Torres Guillermo , Kraus Adam L. , Huber Daniel , Mann Andrew W. , Rizzuto Aaron C. , Isaacson Howard , Howard Andrew W. , Henze Christopher E. , Fulton Benjamin J. , Wright Jason T. 
Published: March 2018

Abstract
We identify a sub-Neptune exoplanet (R

p
= 2.5 ± 0.2

) transiting a solar twin in the Ruprecht 147 star cluster (3 Gyr, 300 pc, [Fe/H] = +0.1 dex). The ∼81 day light curve for EPIC 219800881 (V = 12.71) from K2 Campaign 7 shows six transits with a period of 13.84 days, a depth of ∼0.06%, and a duration of ∼4 hr. Based on our analysis of high-resolution MIKE spectra, broadband optical and NIR photometry, the cluster parallax and interstellar reddening, and isochrone models from PARSEC, Dartmouth, and MIST, we estimate the following properties for the host star: M
⋆ = 1.01 ± 0.03

, R
⋆ = 0.95 ± 0.03

, and

= 5695 ± 50 K. This star appears to be single based on our modeling of the photometry, the low radial velocity (RV) variability measured over nearly 10 yr, and Keck/NIRC2 adaptive optics imaging and aperture-masking interferometry. Applying a probabilistic mass–radius relation, we estimate that the mass of this planet is M

p
= 7 + 5 – 3

, which would cause an RV semi-amplitude of K = 2 ± 1

that may be measurable with existing precise RV facilities. After statistically validating this planet with BLENDER, we now designate it K2-231b, making it the second substellar object to be discovered in Ruprecht 147 and the first planet; it joins the small but growing ranks of 22 other planets and three candidates found in open clusters.
Isotropic–Nematic Phase Transitions in Gravitational Systems. II. Higher Order Multipoles
Authors: Takács Ádám , Kocsis Bence 
Published: March 2018

Abstract
The gravitational interaction among bodies orbiting in a spherical potential leads to the rapid relaxation of the orbital planes’ distribution, a process called vector resonant relaxation. We examine the statistical equilibrium of this process for a system of bodies with similar semimajor axes and eccentricities. We extend the previous model of Roupas et al. by accounting for the multipole moments beyond the quadrupole, which dominate the interaction for radially overlapping orbits. Nevertheless, we find no qualitative differences between the behavior of the system with respect to the model restricted to the quadrupole interaction. The equilibrium distribution resembles a counterrotating disk at low temperature and a spherical structure at high temperature. The system exhibits a first-order phase transition between the disk and the spherical phase in the canonical ensemble if the total angular momentum is below a critical value. We find that the phase transition erases the high-order multipoles, i.e., small-scale structure in angular momentum space, most efficiently. The system admits a maximum entropy and a maximum energy, which lead to the existence of negative temperature equilibria.
Statistics of “Cold” Early Impulsive Solar Flares in X-Ray and Microwave Domains
Authors: Lysenko Alexandra L. , Altyntsev Alexander T. , Meshalkina Natalia S. , Zhdanov Dmitriy , Fleishman Gregory D. 
Published: March 2018

Abstract
Solar flares often happen after a preflare/preheating phase, which is almost or entirely thermal. In contrast, there are the so-called early impulsive flares that do not show a (significant) preflare heating, but instead often show the Neupert effect—a relationship where the impulsive phase is followed by a gradual, cumulative-like, thermal response. This has been interpreted as a dominance of nonthermal energy release at the impulsive phase, even though a similar phenomenology is expected if the thermal and nonthermal energies are released in comparable amounts at the impulsive phase. Nevertheless, some flares do show a good quantitative correspondence between the nonthermal electron energy input and plasma heating; in such cases, the thermal response was weak, which results in them being called “cold” flares. We undertook a systematic search for such events among early impulsive flares registered by the Konus-Wind instrument in the triggered mode from 11/1994 to 4/2017, and selected 27 cold flares based on relationships between hard X-ray (HXR) (Konus-Wind) and soft X-ray (Geostationary Operational Environmental Satellite) emission. For these events, we put together all available microwave data from different instruments. We obtained temporal and spectral parameters of HXR and microwave emissions of the events and examined correlations between them. We found that, compared to a “mean” flare, the cold flares: (i) are weaker, shorter, and harder in the X-ray domain; (ii) are harder and shorter, but not weaker in the microwaves; (iii) have a significantly higher spectral peak frequencies in the microwaves. We discuss the possible physical reasons for these distinctions and implication of the finding.
Deriving the Contribution of Blazars to the Fermi-LAT Extragalactic γ-ray Background at E > 10 GeV with Efficiency Corrections and Photon Statistics
Authors: Di Mauro M. , Manconi S. , Zechlin H.-S. , Ajello M. , Charles E. , Donato F. 
Published: March 2018

Abstract
The Fermi Large Area Telescope (LAT) Collaboration has recently released the Third Catalog of Hard Fermi-LAT Sources (3FHL), which contains 1556 sources detected above 10 GeV with seven years of Pass 8 data. Building upon the 3FHL results, we investigate the flux distribution of sources at high Galactic latitudes (

), which are mostly blazars. We use two complementary techniques: (1) a source-detection efficiency correction method and (2) an analysis of pixel photon count statistics with the one-point probability distribution function (1pPDF). With the first method, using realistic Monte Carlo simulations of the γ-ray sky, we calculate the efficiency of the LAT to detect point sources. This enables us to find the intrinsic source-count distribution at photon fluxes down to 7.5 × 10−12 ph cm−2 s−1. With this method, we detect a flux break at (3.5 ± 0.4) × 10−11 ph cm−2 s−1 with a significance of at least 5.4σ. The power-law indexes of the source-count distribution above and below the break are 2.09 ± 0.04 and 1.07 ± 0.27, respectively. This result is confirmed with the 1pPDF method, which has a sensitivity reach of ∼10−11 ph cm−2 s−1. Integrating the derived source-count distribution above the sensitivity of our analysis, we find that (42 ± 8)% of the extragalactic γ-ray background originates from blazars.
SED Constraints on the Highest-z Blazar Jet: QSO J0906+6930
Authors: An Hongjun , Romani Roger W. 
Published: March 2018

Abstract
We report on Gemini, NuSTAR, and eight years of Fermi observations of the most distant blazar QSO J0906+6930 (z = 5.48). We construct a broadband spectral energy distribution (SED) and model the SED using a synchro-Compton model. The measurements yield a mass of ∼4 × 109
M
⊙ for the black hole and a spectral break at ∼4 keV in the combined fit of the new NuSTAR and archival Chandra data. The SED fitting constrains the bulk Doppler factor δ of the jet to 9+2.5
−3 for QSO J0906+6930. Similar, but weaker, constraints on δ are derived from SED modeling of the three other claimed z > 5 blazars. Together, these extrapolate to ∼620 similar sources, fully 20% of the optically bright, high-mass active galactic nuclei expected at 5 < z < 5.5. This has interesting implications for the early growth of massive black holes.
L’identité négative de l’auditeur
Authors: Jerman Lambert , Bourgoin Alaric 
Published: March 2018

Dans cet article, nous développons la conception d’une identité « négative » de l’auditeur pour comprendre le travail identitaire dans les cabinets du Big Four. L’identité négative ne sert pas à la critique d’un métier. Elle décrit l’ensemble des pratiques et des discours par lesquels le praticien se construit en « bon professionnel » dans un rapport pressant et continu à ses faiblesses. Au moyen d’une étude ethnographique de six mois, nous montrons que l’identité négative se structure autour de l’expérience, de la confession, et de l’administration de ses faiblesses par l’auditeur. Ces trois ensembles de pratiques et de discours permettent de comprendre une partie méconnue du travail identitaire de l’auditeur et d’analyser comment les difficultés qu’il rencontre sur le terrain, participent à la mise en cohérence de son identité personnelle et de son identité sociale.
Transnationalisme et fragmentation identitaire. La citoyenneté culturelle et le capital social postsocialiste des migrants lituaniens aux États-Unis
Authors: Čiubrinskas Vytis , Muller Sylvie 
Published: March 2018

La migration massive depuis l’Europe de l’Est (la Pologne, les pays baltes, les Balkans) vers l’Occident fait partie de cette transformation postsocialiste qui crée des « réalités nouvelles », une extension de l’espace ouvert à des pratiques individuelles et familiales, mais aussi au déploiement d’une différence culturelle et d’un capital social propre. Cet article s’appuie sur une enquête ethnographique menée à Chicago en 2013 parmi des immigrés de Lituanie et d’autres pays est-européens. Il aborde le transnationalisme de deux points de vue : l’ethnicisation et la citoyenneté culturelle, d’une part, et, de l’autre, le réseautage interethnique en tant qu’héritage postsocialiste. L’auteur plaide pour approcher au plus près du terrain ce phénomène complexe qu’est le transnationalisme, qui a ouvert un nouveau réseau de relations intra et interethniques chez les Européens de l’Est immigrés aux États-Unis, en particulier les Lituaniens.
De l’art de la mystification dans Le Spleen de Paris : pour une « explication syphilitique » des « Yeux des pauvres »
Authors: Cagnat-Debœuf Constance 
Published: March 2018

Que « Les Yeux des pauvres » relève de la mystification poétique, on ne saurait en douter tant se devine, dans le procès pour insensibilité que le narrateur intente à sa maîtresse, l’œuvre de la mauvaise foi. Aussi se propose-t-on d’interroger le récit de cette soirée pour tenter d’y découvrir la secrète raison de la rupture des amants. L’hypothèse ici avancée est qu’elle réside dans la jalousie du narrateur qui voit la femme échapper au mal dont lui-même souffre : la syphilis. L’ensemble du poème est interprété comme une variation sur cette « lèpre des temps modernes », dont semblent atteints aussi bien les pauvres que le narrateur et dont le café parisien apparaît comme une saisissante allégorie. Mais derrière la dénonciation de cette cruelle réalité, c’est aussi une réflexion sur l’entreprise poétique qu’engage le poème, qui fait de la contagion une métaphore de l’interprétation.
Les mots du travail : analyse des thématiques de recherche publiées dans Le travail humain de 1933 à 2016
Authors: Cuvillier Bruno , Bouzid Sofiane , Bobillier-Chaumon Marc-Éric , Laneyrie Elsa , Rouat Sabrina , Sarnin Philippe 
Published: March 2018

Les résumés des articles scientifiques publiés dans la revue Le Travail humain depuis 1933, date de sa création, constituent un matériau sur lequel nous nous sommes appuyés pour tenter de saisir l’évolution des thématiques abordées. Nous nous sommes penchés sur l’analyse des 1665 publications scientifiques afin d’en extraire l’essence en termes de thématiques de recherches abordées et comprendre les dynamiques scientifiques et les orientations thématiques de la revue. Premièrement, nous avons analysé les points communs et les spécificités des publications dans les différentes éditions de la revue ainsi que les principales différences entre les éditions consécutives. Puis nous nous sommes intéressés à la façon dont les publications s’articulent autour des thématiques extraites et sur lesquelles nous avons essayé de visualiser une approximation sémantique. Enfin, nous nous sommes intéressés à l’évolution des thématiques depuis la création de cette revue jusqu’à l’édition 2016.