bluuebunny/crossref_metadata_2025_split huggingface dataset:
Desain Optimal Power System Stabilizer Pada System Kelistrikan Sulselrabar Menggunakan Bat Algorithm
Authors: Djalal Muhammad Ruswandi , Faisal Faisal 
Published: May 2018

Masalah penggunaan Power System Stabilizer (PSS) pada eksitasi generator adalah bagaimana menentukan parameter PSS yang optimal. Untuk mengatasi masalah tersebut, penulis menggunakan metode cerdas berbasis algoritma kelelawar untuk mendesain PSS. Algoritma Kelelawar adalah algoritma yang bekerja berdasarkan perilaku kelelawar dalam mencari sumber makanan. Korelasi dengan penelitian ini adalah, sumber makanan yang dicari oleh kelelawar merepresentasikan sebagai parameter PSS yang akan dioptimasi. Algoritma kelelawar akan bekerja berdasarkan fungsi tujuan yang sudah ditentukan, yaitu Integral Time Absolute Error (ITAE). Pada penelitian ini akan dilihat respon deviasi kecepatan dan sudut rotor setiap generator, bila terjadi gangguan di bakaru generator. Hasil analisa menunjukkan, sistem tanpa kontrol menghasilkan osilasi overshoot yang besar, dan setelah tambahan peralatan kontrol PSS osilasi tersebut dapat diredam. Sehingga overshoot dan settling time masing - masing generator dapat dikurangi dan generator dapat dengan cepat menuju ke kondisi steady state.
Response level of some undergraduate programmes to Vietnam National Framework for Reference: A case study at Vietnam National University
Authors: Thi Hoai Tran , Huy Nghiem Xuan , Thuong Le Thi 
Published: May 2018

Vietnam National Framework for Reference was delivered at decision number 1982/QĐ-TTg on 18 October 2016 signed by Prime Minister of Vietnam. Following this, programmes of higher education institutions were required reviewing and adjusting follow the Vietnam National Framework for Reference. Precisely, correlation between outcome standards, programme structure, building and developing steps of programme with capacity outcome standards in Vietnam National Framework for Reference, need to be researched and solved thoroughly to help higher education institutions plan adjusting and updating programme on current situation. This article shows a litterature review on national framework, outcome standards of undergraduate programmes; steps in developing undergraduate programmes; benchmarking of undergraduate programmes and Vietnam National Framework for Reference. Research data collected from surveying and evaluating undergraduate programme at Vietnam National University, Hanoi.
Key words:
National Framework for Reference, outcome standards, undergraduate programme.
References
1- Arjen Deij và các cộng sự, (2015), Global Inventory of Regional and National Qualifications Frameworks, Volume I: thematic chapters, UNESCO Institute for Lifelong Learning.2- Arjen Deij và các cộng sự, (2015), Global Inventory of Regional and National Qualifications Frameworks, Volume II: National and Regional Cases, UNESCO Institute for Lifelong Learning.3- Cedefop, (2017), European qualifications framework (EQF).4- The ASEAN Qualifications Reference Framework (AQRF), (2nd, 2015)5- Teresita r. Manzala, (2013), the Asean qualifications reference framework (AQRF)6- Chính phủ, Khung trình độ quốc gia Việt Nam, (2016), Quyết định số 1982/QĐ-TTg ngày 18 tháng 10 năm 2016 của Thủ tướng Chính phủ.7- Phạm Thị Minh Hiền, (2016), Tổng quan về Khung trình độ quốc gia, tạp chí Lao động và Xã hội số 535 từ tr.16 – tr.30, 9/20168- Nguyễn Đức Chính, (2017), Phát triển chương trình giáo dục, NXB Đại học Quốc gia Hà Nội.9- Đại học Quốc gia Hà Nội, (2010), Hướng dẫn xây dựng và hoàn thiện chương trình đào tạo theo chuẩn đầu ra ở Đại học Quốc gia Hà Nội, ban hành theo công văn số 3109/HD-ĐHQGHN ngày 29 tháng 10 năm 2010.10 - Viện Đảm bảo chất lượng giáo dục, (2017), Báo cáo tình hình khảo sát việc
Individual or Group-based Approach to the Assessment of Preschool Children: A Comparison using the INTERGROWTH-21st Neurodevelopment Assessment (INTER-NDA)
Authors: Slim Johanna , Villar Jose , Guerrero Varela Gabriela , Hernandez Castillo Francisca , Buchán Durán Angélica , De la Luz Lozada Guzmán Maria , Cheikh Ismail Leila , Savini Sandy , Vazquez Arango Pilar , Stein Alan , Kennedy Stephen , Fernandes Michelle 
Published: May 2018

Introduction: It is unclear if the assessment of early child development can be carried out using a group approach, as opposed to individually.
Objective: To compare scores obtained from children aged 22 to 26 months assessed either in small groups or individually using the INTERGROWTH-21st Neurodevelopment Assessment (INTER-NDA), which measures cognition, language, motor skills, behavior, attention and socio-emotional reactivity.
Methods: A small group based strategy for administering and scoring the INTER-NDA was developed. Thirty-six preschool children attending four Centros de Cuidado y Atención Infantil of the Sistema Nacional para el Desarrollo Integral de la Familia (DIF) of Mexico were assessed in small groups of three children by a teacher specifically trained in the INTER-NDA. A second teacher, unaware of the group results, assessed the children individually on a different day. The sex, age, weight, length and head circumference of the children at the time of assessment were recorded.
Results: INTER-NDA domain scores for group and individual assessments were statistically significantly correlated (range r=0.35 to r=1.00) for all domains except receptive language (r=0.25, p=0.14). Bland-Altman analysis showed agreement between group and individual scores for the language, behavior, attention and socio-emotional reactivity domains, and consistency (but not agreement) between group and individual scores for the cognitive and motor domains. None of the differences between group and individual scores examined were statistically significant, even after adjusting for the children’s age, sex, nutritional status and location of the preschool.

Conclusion: INTER-NDA domain specific scores obtained following group and individual assessment of children aged 22 to 26 months are consistent. It is feasible for trained preschool teachers to administer INTER-NDA at both group and individual level.
Varian Islam Nusantara: Jawa, Minangkabau dan Gorontalo
Authors: Tungkagi Donald Qomaidiansyah 
Published: May 2018

This article discusses how the encounter of Islam and culture in Indonesia, and how Islam on one hand affects culture and on the other hand it is influenced by culture. The encounter between Islam and local culture has formed a new habitat that is later called the Islamic Nusantara tradition. The findings in this article prove that the interaction of Islam with local culture occurs in a socio-historical context influenced by the pattern of the spread of Islam in the archipelago. By using the theory of Taufik Abdullah in this article the author compares the three variants of Islamic Nusantara with the pattern and uniqueness of each form: a) Javanese variant, there is a process of acculturation between Islam and culture which are equally strong. The Javanese Islamic variant describes the result of a reconciliation process between identity, belief and the style of Javanese and Islam as "Mystic Synthesis". B) Minangkabau variant, born from "Negotiation of Islam and Adat" as a very thick area of Islamic and customary nuances make the dimensions in Islamic variants in Minangkabau cannot be separated from the conflict between the two parties who gave the role. C) Gorontalo variant, with different Islamiza­tion process with other kingdoms in the Nusantara in general. Since the early period of Islamic encounter with Gorontalo culture, there has been more tangible "Integration between Islam and Adat". Keywords: Java, Minangkabau, Gorontalo, Islam NusantaraArtikel ini mendiskusikan bagaimana perjumpaan Islam dan budaya di Indonesia, dan bagaimana Islam pada satu sisi berpengaruh terhadap budaya dan di sisi lain dipengaruhi oleh budaya. Perjumpaan antara Islam dan budaya lokal telah membentuk habitat baru yang belakangan disebut tradisi Islam Nusantara. Temuan dalam artikel ini membuktikan bahwa interaksi Islam dengan budaya lokal terjadi dalam konteks sosio-historis yang dipengaruhi pola penyebaran Islam di kawasan Nusantara. Dengan menggunakan teori Taufik Abdullah dalam artikel ini penulis memban­ding­kan tiga varian Islam Nusantara dengan corak dan keunikannya masing-masing diantaranya: a) Varian Jawa, terjadi proses akulturasi an­tara Islam dan budaya yang sama-sama kuat. Varian Islam Jawa meng­gambarkan hasil proses rekonsiliasi antara identitas, keyakinan serta gaya Jawa dan Islam ini dengan sebutan “Sintesis Mistik”. b) Varian Minang­kabau, lahir dari “Negosiasi Islam dan Adat” sebagai wilayah yang sangat kental nuansa Islam dan adat membuat warna dalam varian Islam di Minangkabau tidak lepas dari dari konflik antara dua pihak yang memberi peranan tersebut. c) Pola Gorontalo, dengan proses Islamisasi yang ber­beda dengan kerajaan-kerajaan di Nusantara pada umumnya. Sejak periode awal perjumpaan Islam dengan budaya Gorontalo lebih berwujud “Integ­rasi antara Islam dan Adat”.Kata kunci: Jawa, Minangkabau, Gorontalo, , Islam Nusantara
Güneş Paneli ve Yakıt Pili Karma Temiz Enerji Sisteminde Beş Seviyeli BMD’li STATCOM
Authors: YANMAZ Kenan , MENGİ Onur Özdal , ALTAŞ İsmail Hakkı 
Published: May 2018

Bu
makalede Güneş Panelleri (GP) ve Yakıt Pillerinden (YP) oluşan karma
yenilenebilir enerji üretim sistemi için 5 seviyeli Statik Senkron Kompanzatör
(STATCOM)’un benzetim çalışması yapılmıştır. Güneş panellerinin yetersiz güneş
ışığı ve gündüz-gece durumu gibi ortam şartlarından dolayı güç üretemediği
durumlarda yüklerin enerjisiz kalmasını önleyebilmek için hidrojen ile çalışan
PEM tipi yakıt pilleri konmuştur. Bunun için iki sistem arasında geçişi
sağlayan bir adet regülatör kullanılmıştır. Bu sistem ortam şartlarına göre
uygun üreteci devreye alırken diğerini de devreden çıkartmaktadır. Kurulan
sistem yükler üzerindeki reaktif gücü sıfırladığı gibi aynı zamanda yük
üzerindeki gerilimi de 380V ve 50Hz de sabit tutmaktadır. Şebekeden çekilen
reaktif güç STATCOM vasıtasıyla sıfırlanmaktadır. STATCOM 5 seviyeli H köprü
temelli 24 IGBT’den oluşan bir evirici yapısına sahiptir. Bu IGBT’ler Bulanık
Mantık Denetleyiciler (BMD) ile denetlenmekte ve anahtarlama sinyalleri
üretilmektedir. Benzetim çalışması alt blokları ile birlikte MATLAB/Simulink
ortamında gerçekleştirilmiştir.
Peritoneal Dialysis for AKI in Cameroon: Commercial Vs Locally-Made Solutions
Authors: Palmer Dennis , Lawton William J. , Barrier Charles , Fine B.D. , Hemphill Hayden , Nyah Norah Ndi , Kinne Virginie , Ringnwi Njaprim Ivor , Yong Genevive , Neufeldt Amy L. , Mitterand Yves , Finkelstein Fredric O. , Krahn Thomas A. 
Published: May 2018

Background Acute kidney injury (AKI) is common in low- and middle-income countries, and is associated with a high mortality. The high mortality rate is in large part due to the inability to perform dialysis in resource-limited settings. Due to significant cost advantages, peritoneal dialysis (PD) has been used to treat AKI in these settings. The costs, however, remain high when commercial solutions are used. Methods This is a retrospective cohort study of the outcome, and of the peritonitis rates, of patients with AKI treated with either commercially manufactured PD solutions or locally-made PD solutions. A program to treat AKI with PD was started at Mbingo Baptist Hospital in Cameroon. Between May 2013 and January 2015, solutions and connection sets were provided by the Saving Young Lives Program. From January 2015 through March 2017, solutions were locally produced and available tubing was used. Results Mortality in hospitalized AKI patients was 28% during the period when commercial solutions and tubing were utilized, and 33% when locally produced solutions and available tubing were utilized. In both groups, peritonitis occurred in 16% of treatment courses. Conclusions Locally produced PD solutions, used with locally available tubing, were used to treat AKI with PD. The mortality and peritonitis rates were similar whether locally produced or commercial supplies were used.
Dark Galaxy Candidates at Redshift ∼3.5 Detected with MUSE*
Authors: Anna Marino Raffaella , Cantalupo Sebastiano , Lilly Simon J. , Gallego Sofia G. , Straka Lorrie A. , Borisova Elena , Pezzulli Gabriele , Bacon Roland , Brinchmann Jarle , Carollo C. Marcella , Caruana Joseph , Conseil Simon , Contini Thierry , Diener Catrina , Finley Hayley , Inami Hanae , Leclercq Floriane , Muzahid Sowgat , Richard Johan , Schaye Joop , Wendt Martin , Wisotzki Lutz 
Published: May 2018

Abstract
Recent theoretical models suggest that the early phase of galaxy formation could involve an epoch when galaxies are gas rich but inefficient at forming stars: a “dark galaxy” phase. Here, we report the results of our Multi-Unit Spectroscopic Explorer (MUSE) survey for dark galaxies fluorescently illuminated by quasars at z > 3. Compared to previous studies which are based on deep narrowband (NB) imaging, our integral field survey provides a nearly uniform sensitivity coverage over a large volume in redshift space around the quasars as well as full spectral information at each location. Thanks to these unique features, we are able to build control samples at large redshift distances from the quasars using the same data taken under the same conditions. By comparing the rest-frame equivalent width (EW0) distributions of the Lyα sources detected in proximity to the quasars and in control samples, we detect a clear correlation between the locations of high-EW0 objects and the quasars. This correlation is not seen in other properties, such as Lyα luminosities or volume overdensities, suggesting the possible fluorescent nature of at least some of these objects. Among these, we find six sources without continuum counterparts and EW0 limits larger than 240 Å that are the best candidates for dark galaxies in our survey at z > 3.5. The volume densities and properties, including inferred gas masses and star formation efficiencies, of these dark galaxy candidates are similar to those of previously detected candidates at z ≈ 2.4 in NB surveys. Moreover, if the most distant of these are fluorescently illuminated by the quasar, our results also provide a lower limit of t = 60 Myr on the quasar lifetime.
The NANOGrav 11 Year Data Set: Pulsar-timing Constraints on the Stochastic Gravitational-wave Background
Authors: Arzoumanian Z. , Baker P. T. , Brazier A. , Burke-Spolaor S. , Chamberlin S. J. , Chatterjee S. , Christy B. , Cordes J. M. , Cornish N. J. , Crawford F. , Cromartie H. Thankful , Crowter K. , DeCesar M. , Demorest P. B. , Dolch T. , Ellis J. A. , Ferdman R. D. , Ferrara E. , Folkner W. M. , Fonseca E. , Garver-Daniels N. , Gentile P. A. , Haas R. , Hazboun J. S. , Huerta E. A. , Islo K. , Jones G. , Jones M. L. , Kaplan D. L. , Kaspi V. M. , Lam M. T. , Lazio T. J. W. , Levin L. , Lommen A. N. , Lorimer D. R. , Luo J. , Lynch R. S. , Madison D. R. , McLaughlin M. A. , McWilliams S. T. , Mingarelli C. M. F. , Ng C. , Nice D. J. , Park R. S. , Pennucci T. T. , Pol N. S. , Ransom S. M. , Ray P. S. , Rasskazov A. , Siemens X. , Simon J. , Spiewak R. , Stairs I. H. , Stinebring D. R. , Stovall K. , Swiggum J. , Taylor S. R. , Vallisneri M. , Haasteren R. van , Vigeland S. , Zhu W. W. ,   (The NANOGrav Collaboration)
Published: May 2018

Abstract
We search for an isotropic stochastic gravitational-wave background (GWB) in the newly released 11 year data set from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav). While we find no evidence for a GWB, we place constraints on a population of inspiraling supermassive black hole (SMBH) binaries, a network of decaying cosmic strings, and a primordial GWB. For the first time, we find that the GWB constraints are sensitive to the solar system ephemeris (SSE) model used and that SSE errors can mimic a GWB signal. We developed an approach that bridges systematic SSE differences, producing the first pulsar-timing array (PTA) constraints that are robust against SSE errors. We thus place a 95% upper limit on the GW-strain amplitude of A
GWB < 1.45 × 10−15 at a frequency of f = 1 yr−1 for a fiducial f
−2/3 power-law spectrum and with interpulsar correlations modeled. This is a factor of ∼2 improvement over the NANOGrav nine-year limit calculated using the same procedure. Previous PTA upper limits on the GWB (as well as their astrophysical and cosmological interpretations) will need revision in light of SSE systematic errors. We use our constraints to characterize the combined influence on the GWB of the stellar mass density in galactic cores, the eccentricity of SMBH binaries, and SMBH–galactic-bulge scaling relationships. We constrain the cosmic-string tension using recent simulations, yielding an SSE-marginalized 95% upper limit of Gμ < 5.3 × 10−11—a factor of ∼2 better than the published NANOGrav nine-year constraints. Our SSE-marginalized 95% upper limit on the energy density of a primordial GWB (for a radiation-dominated post-inflation universe) is ΩGWB(f) h
2 < 3.4 × 10−10.
Dynamical Phase Transition in Neutron Stars
Authors: Prasad R. , Mallick Ritam 
Published: May 2018

Abstract
We have studied the dynamical evolution of the shock in a neutron star (NS). The conversion of nuclear to quark matter (QM) is assumed to take place at the shock discontinuity. The density and pressure discontinuity is studied both spatially and temporally as it starts near the center of the star and moves toward the surface. Polytropic equations of state (EoS), which mimic original nuclear and QM EoS, are used to study such dynamical phase transition (PT). Solving relativistic hydrodynamic equations for a spherically symmetric star, we study the PT, assuming a considerable density discontinuity near the center. We find that as the shock wave propagates outward, its intensity decreases with time; however, the shock velocity peaks up and reaches a value close to that of light. Such fast shock velocity indicates rapid PT in NS taking place on a timescale of some 10s of microseconds. Such a result is quite interesting, and it differs from previous calculations that the PT in NSs takes at least some 10s of milliseconds. Rapid PT can have significant observational significance, because such fast PT would imply rather strong gravitational wave (GW) signals that are rather short lived. Such short-lived GW signals would be accompanied with short-lived gamma-ray bursts and neutrino signals originating from the neutrino and gamma-ray generation from the PT of nuclear matter to QM.
Dust Attenuation, Bulge Formation, and Inside-out Quenching of Star Formation in Star-forming Main Sequence Galaxies at z ∼ 2*
Authors: Tacchella S. , Carollo C. M. , Schreiber N. M. Förster , Renzini A. , Dekel A. , Genzel R. , Lang P. , Lilly S. J. , Mancini C. , Onodera M. , Tacconi L. J. , Wuyts S. , Zamorani G. 
Published: May 2018

Abstract
We derive 2D dust attenuation maps at ∼1 kpc resolution from the UV continuum for 10 galaxies on the z ∼ 2 star-forming main sequence (SFMS). Comparison with IR data shows that 9 out of 10 galaxies do not require further obscuration in addition to the UV-based correction, though our sample does not include the most heavily obscured, massive galaxies. The individual rest-frame V-band dust attenuation (A
V) radial profiles scatter around an average profile that gently decreases from ∼1.8 mag in the center down to ∼0.6 mag at ∼3–4 half-mass radii. We use these maps to correct UV- and Hα-based star formation rates (SFRs), which agree with each other. At masses

, the dust-corrected specific SFR (sSFR) profiles are on average radially constant at a mass-doubling timescale of ∼300 Myr, pointing at a synchronous growth of bulge and disk components. At masses

, the sSFR profiles are typically centrally suppressed by a factor of ∼10 relative to the galaxy outskirts. With total central obscuration disfavored, this indicates that at least a fraction of massive z ∼ 2 SFMS galaxies have started their inside-out star formation quenching that will move them to the quenched sequence. In combination with other observations, galaxies above and below the ridge of the SFMS relation have, respectively, centrally enhanced and centrally suppressed sSFRs relative to their outskirts, supporting a picture where bulges are built owing to gas “compaction” that leads to a high central SFR as galaxies move toward the upper envelope of the SFMS.
The Evolution of Massive Close Binaries: Anomalous Relationship between Nitrogen Abundances and Rotational Velocities
Authors: Song Hanfeng , Wang Jiangtao , Song Fen , Zhang Ruiyu , Li Zhi , Peng Weiguo , Zhan Qiong , Jing Jianghong 
Published: May 2018

Abstract
The combined effects of rotation and mass accretion on the evolution of binary systems are investigated in this work. Rotational binaries provide us with a promising channel that could explain the abnormal phenomenon of the nitrogen abundances in Groups 1 and 2 of the Galactic Hunter diagram. Group 1 contains fast-rotating but nitrogen-unenriched stars, whereas Group 2 includes apparently slowly rotating but nitrogen-enhanced stars. The donor star suffers from heavy mass loss that progressively exposes deep layers of nitrogen and corresponding angular momentum loss that can efficiently spin the star down. Rapid-rotation stars without nitrogen enrichment may be related to mass gainers that had accreted little matter from a close companion and then been spun up to rapid rotation. Nitrogen enrichment of mass gainers can be greatly suppressed by low accreting efficiency, which is induced by critical rotation, thermohaline mixing, and the gradient of mean molecular weight. Nitrogen enrichment due to mass accretion appears to be more efficient than that due to rotational mixing, because there exist thermohaline instabilities during Roche lobe overflow. The mixing in the enlarged convective core reduces carbon and nitrogen abundances but increases oxygen abundances in mass gainers. This process significantly triggers CNO cycling but does not support CN cycling. The orbital separation can be widened because of the nonconservative mass transfer, and this process gives rise to weak tidal torques. Therefore, invoking binaries has the potential to simultaneously explain the observed stars in Groups 1 and 2 of the Galactic Hunter diagram.
Measuring the Local ISM along the Sight Lines of the Two Voyager Spacecraft with HST/STIS
Authors: Zachary Julia , Redfield Seth , Linsky Jeffrey L. , Wood Brian E. 
Published: May 2018

Abstract
In 2012 August, Voyager 1 crossed the heliopause, becoming the first human-made object to exit the solar system. This milestone signifies the beginning of an important new era for local interstellar medium (LISM) exploration. We present measurements of the structure and composition of the LISM in the immediate path of the Voyager spacecraft by using high-resolution Hubble Space Telescope (HST) spectra of nearby stars that lie along the same lines of sight. We provide a comprehensive inventory of LISM absorption in the near-ultraviolet (2600–2800 Å) and far-ultraviolet (1200–1500 Å). The LISM absorption profiles are used to make comparisons between each pair of closely spaced (<15°) sight lines. With fits to several absorption lines, we make measurements of the physical properties of the LISM. We estimate electron density along the Voyager 2 sight line, and our values are consistent with recent measurements by Voyager 1. Excess absorption in the H i Lyα line displays the presence of both the heliosphere and an astrosphere around GJ 780. This is only the 14th detection of an astrosphere, and the large mass-loss rate (

) is consistent with other subgiant stars. The heliospheric absorption matches the predicted strength for a sight line 58° from the upwind direction. As both HST and Voyager reach the end of their lifetimes, we have the opportunity to synthesize their respective observations, combining in situ measurements with the shortest possible line-of-sight measurements to study the Galactic ISM surrounding the Sun.