bluuebunny/crossref_metadata_2025_split huggingface dataset:
Laguerre–Gaussian vortex mode generation from astigmatic semiconductor microcavity
Authors: Nakagawa Kohki , Yamane Keisaku , Morita Ryuji , Toda Yasunori 
Published: March 2020

Abstract
Laguerre–Gaussian (LG) vortex mode generations are demonstrated by employing the optical injection of a higher-order transverse mode into a vertical cavity surface emitting laser. In addition to the coherent LG injection, Hermite–Gaussian (HG) injection also enable LG mode generation, where the chirality is controllable by the HG mode angle of the injection beam. The result can be well understood when we consider the astigmatic Gouy phase shifts within the microcavity. HG induced vortex generation eases the symmetrical requirements of the cavity and thus extends flexibility as regards the design and fabrication of vortex lasers.
HUBUNGAN MINAT BELAJAR KEJURUAN DAN PRESTASI BELAJAR KEWIRAUSAHAAN DENGAN MINAT BERWIRAUSAHA
Authors: Fikri Rahman Heny , Samidjo  , Handayono Nurcholis Arifin 
Published: March 2020

Abstrak: Tujuan penelitian ini adalah untuk mengetahui: (1) hubungan antara minat belajar kejuruan dan prestasi belajar kewirausahaan dengan minat berwirausaha; (2) hubungan antara minat belajar kejuruan dengan minat berwirausaha; dan (3) hubungan antara prestasi belajar kewirausahaan dan minat berwirausaha. Metode penelitian ini adalah ex-post facto, dengan populasi seluruh siswa kelas XI Teknik Kendaraan Ringan. Sampel diambil secara acak berjumlah 52 siswa. Instrumen yang digunakan adalah kuesioner untuk minat belajar kejuruan dan minat berwirausaha, serta dokumentasi untuk prestasi belajar kewirausahaan. Teknik analisis data menggunakan analisis regresi ganda. Hasil penelitian menunjukkan: (1) terdapat hubungan yang signifikan antara minat belajar kejuruan dan prestasi belajar kewirausahaan dengan minat berwirausaha; (2) terdapat hubungan yang signifikan antara minat belajar kejuruan dengan minat berwirausaha; dan (3) terdapat hubungan yang signifikan antara prestasi belajar kewirausahaan dan minat berwirausaha.

Abstract: This study aim to find out : (1) the relationship between vocational learning interest and entrepreneurial learning achievement with entrepreneurial interest; (2) the relationship between vocational learning interest and entrepreneurial interest; and (3) the relationship between entrepreneurial learning achievement and entrepreneurial interest. This research method is ex-post facto with a population of all students of class XI Teknik Kendaraan Ringan. Samples were taken randomly totaling 52 students. The instrument used was a questionnaire for vocational learning interest and entrepreneurial interest and documentation for entrepreneurial learning achievement. Data analysis techniques using multiple regression analysis. The results showed: (1) there was a significant relationship between interest in vocational learning and entrepreneurial learning achievement with interest in entrepreneurship; (2) there was a significant relationship between interest in vocational learning with interest in entrepreneurship; and (3) there was a significant relationship between entrepreneurial learning achievement and entrepreneurial interest.
ANALISA ALAT PERMAINAN EDUKATIF ANAK
Authors: Wiyogo Wiyogo , Perkasa Petrisly , Fachrezzy Rifo 
Published: March 2020

Abstrak: Alat permainan edukatif memiliki manfaat penting dalam perkembangan kognitif anak, keterampilan motorik, dan kebugaran anak. Desain dan pembuatan yang dilakukan di Laboratorium Pendidikan Teknik Mesin Universitas Palangka Raya perlu dianalisis untuk mengetahui sejauh mana alat ini berguna. Hal pertama yang harus dilakukan adalah mempelajari literatur dan kemudian mengidentifikasi variabel penelitian yang bertujuan mendapatkan gambaran tentang apa yang dibutuhkan pengguna. Dari hasil kuesioner awal, tiga variabel diperoleh, yaitu desain, permainan mudah, dan keamanan. Data penelitian lebih lanjut yang telah diperoleh dengan nilai indeks dari produk yang diperoleh adalah 94,83%.

Abstract: Educational game tools have important benefits in a child's cognitive development, motor skills, and children's fitness. The design and manufacturing done at the Mechanical Engineering Education Laboratory of Palangka Raya University needs to be analyzed to find out how far the tool is useful. The first thing to do is to study the literature and then identify research variables aimed at getting a picture of what the user needs. From the results of the initial questionnaire, three variables were obtained, namely design, easy game and safety. Further research data that have been obtained with an index value of the products obtained are 94.83%.
HAMIL DILUAR NIKAH DAN STATUS NASAB ANAK (Studi Analisis Perspektif Imam Syafi’i dan Imam Ahmad Bin Hambal)
Authors: Asman Asman 
Published: March 2020

Imam Syafi’i berpendapat bahwa perkawinan akibat hamil di luar nikah adalah sah, perkawinan boleh dilangsungkan ketika seorang wanita dalam keadaan hamil. Baik perkawinan itu dilakuan dengan laki-laki yang menghamilinya ataupun dengan laki-laki yang bukan menghamilinya. Argumen Imam Syafi’i tentang kebolehan perkawinan tersebut adalah karena wanita tersebut bukanlah termasuk golongan wanita yang haram untuk dinikahi. Dalam masalah ‘iddah Imam Syafi’i berpendapat bahwa tidak ada masa ‘iddah untuk wanita hamil di luar nikah dengan tujuan ‘iddah adalah untuk menjaga kesucian nasab anak. Bayi yang lahir akibat hubungan di luar nikah nasabnya kembali kepadanya. Sedangkan menurut Imam Ahmad Bin Hambal berpendapat bahwa perkawinan hamil di luar nikah dilakukan dengan laki-laki yang menghamilinya tidak boleh, kecuali mereka bertaubat terdahulu. Sedangkan perkawinan hamil di luar nikah dengan laki-laki yang bukan menghamilinya itu haram hukumnya. Imam Hambali mengatakan diwajibkan atanya menunggu masa ‘iddah dan diharamkan atas suaminya menyetubuhinya hingga habis masa ‘iddahnya. Jenis penelitian ini adalah library research. Secara umum metode penelitian ini yang digunakan adalah penelitia normatif, yaitu penelitian yang diarahkan dan difokuskan terhadap penelitian bahan-bahan pustaka. Fokus kajian ini adalah bagaimana perspektif Imam Syafi’i dan Imam Ahmad bin Hambal tentang hamil di luar nikah dan status nasab anak. Dari fokus kajian menyimpulkan bahwa setiap mazhab sepakat bahwa batas minimal kehamilan adalah enam bulan, apabila seorang wanita dan laki-laki kawin lalu melahirkan seorang anak dalam keadaan hidup dan sempurna bentuknya sebelum enam bulan, maka anak tersebut tidak bisa dikaitakan dengan nasab atas nama suaminya.Kata Kunci : hamil, diluar nikah, nasab, anak
Stellar Mass and Stellar Mass-to-light Ratio–Color Relations for Low Surface Brightness Galaxies
Authors: Du Wei , Cheng Cheng , Zheng Zheng , Wu Hong 
Published: March 2020

Abstract
We estimate the stellar mass for a sample of low surface brightness galaxies (LSBGs) by fitting their multiband spectral energy distributions (SEDs) to the stellar population synthesis model. The derived stellar masses (log M
*/M
⊙) span from 7.1 to 11.1, with a mean of log M
*/M
⊙ = 8.5, which is lower than that for normal galaxies. The stellar mass-to-light ratio (γ*) in each band varies little with the absolute magnitude but increases with higher M
*. This trend of γ* with M
* is even stronger in bluer bands. In addition, the γ* for our LSBGs slightly declines from the r band to the longer-wavelength bands. The log

(j = g, r, i, and z) have relatively tight relations with optical colors of g − r and g − i. Compared with several representative γ*–color relations (MLCRs) from the literature, our MLCRs based on LSBG data are consistently among those literature MLCRs previously defined on diverse galaxy samples, and the existing minor differences between the MLCRs are caused by the differences in the SED model ingredients (including initial mass function, star formation history, and stellar population model), line fitting techniques, galaxy samples, and photometric zero-point, rather than the galaxy surface brightness itself, which distinguishes LSBGs from high surface brightness galaxies. Our LSBGs would be very likely to follow those representative MLCRs previously defined in diverse galaxy populations, if those main ingredients were taken into account.
Distortion of Magnetic Fields in Barnard 335
Authors: Kandori Ryo , Saito Masao , Tamura Motohide , Tomisaka Kohji , Matsumoto Tomoaki , Tazaki Ryo , Nagata Tetsuya , Kusakabe Nobuhiko , Nakajima Yasushi , Kwon Jungmi , Nagayama Takahiro , Tatematsu Ken’ichi 
Published: March 2020

Abstract
In this study, the detailed magnetic field structure of the dense protostellar core Barnard 335 (B335) was revealed, based on near-infrared polarimetric observations of background stars to measure dichroically polarized light produced by magnetically aligned dust grains in the core. Magnetic fields pervading B335 were mapped using 24 stars after subtracting unrelated ambient polarization components, revealing that they have an axisymmetrically distorted hourglass-shaped structure toward the protostellar core. On the basis of simple two- and three-dimensional magnetic field modeling, magnetic inclination angles in the plane-of-sky and line-of-sight directions were determined to be 90° ± 7° and 50° ± 10°, respectively. The total magnetic field strength of B335 was determined to be 30.2 ± 17.7 μG. The critical mass of B335, evaluated using both magnetic and thermal/turbulent support against collapse, was determined to be M
cr = 3.37 ± 0.94 M
⊙, which is identical to the observed core mass of M
core = 3.67 M
⊙. We thus concluded that B335 started its contraction from a condition near equilibrium. We found a linear relationship in the polarization versus extinction diagram, up to A

V
∼ 15 mag toward the stars with the greatest obscuration, which verified that our observations and analysis provide an accurate depiction of the core.
Discovery of a Remarkably Powerful Broad Absorption-line Quasar Outflow in SDSS J135246.37+423923.5
Authors: Choi Hyunseop , Leighly Karen M. , Terndrup Donald M. , Gallagher Sarah C. , Richards Gordon T. 
Published: March 2020

Abstract
Broad absorption-line (BAL) features in quasar spectra reveal an unambiguous signature of energetic outflows from central supermassive black holes, and thus, BAL quasars are prime targets for investigating the potential process of luminous quasar feedback on galaxies. We analyzed the rest-UV spectrum of an “overlapping trough” iron low-ionization broad absorption-line quasar (FeLoBAL) SDSS J135246.37+423923.5 using the novel spectral synthesis code SimBAL and discovered an extraordinarily fast and energetic BAL outflow. Our analysis revealed outflow velocities reaching

with a velocity width of

, which is the largest FeLoBAL outflow velocity measured to date. The column density of the outflow gas is log

with the log kinetic luminosity

(erg s−1), which exceeds the bolometric luminosity of the quasar and is energetic enough to effectively drive quasar feedback. The energy estimate for the outflow is far greater than the estimates from any BAL object previously reported. The object also shows “anomalous reddening” and a significant scattered component that we were able to model with SimBAL. We found the first definitive case for radiation filtering in an additional zero-velocity absorption component that required an absorbed continuum to produce the particular absorption lines observed (Mg ii, Al iii, and Al ii) without also producing the high-ionization lines such as C iv.
Heating of the Solar Wind by Ion Acoustic Waves
Authors: Kellogg Paul J. 
Published: March 2020

Abstract
Calculations are made of the energy supplied to the solar wind by the rapid decay of density fluctuations, identified as ion acoustic waves. It is shown that this process supplies an appreciable fraction, perhaps nearly all, of the observed heating of the solar wind. This process may be an important step in the conversion of magnetic turbulence to particle energy.
Upward Overshooting in Turbulent Compressible Convection. II. Simulations at Large Relative Stability Parameters
Authors: Cai Tao 
Published: March 2020

Abstract
In this paper, we present the results of three-dimensional numerical simulation of upward overshooting in turbulent compressible convection at large relative stability parameter S. Similar to the previous simulations at small S, we find that the convectively stable zone can be partitioned into three layers: the thermal adjustment layer, the turbulent dissipation layer, and the thermal dissipation layer. Despite of this similarity, there exist significant differences in several aspects. First, for small S, the thermal structure is altered considerably near the interface between the convectively unstable and stable zones. For extremely large S, the thermal structure is only slightly changed. Second, the overshooting distance decreases at small S, but it can increase when S is large enough. Third, for small S, the fluid motions tend to be less active when S increases. However, the fluid motions can be more active when S is large enough. We find that the structure of counter cells has a significant impact on the penetration depth.
Birth, Life, and Death of Black Hole Binaries around Supermassive Black Holes: Dynamical Evolution of Gravitational Wave Sources
Authors: Sedda Manuel Arca 
Published: March 2020

Abstract
This paper explores the mechanisms that regulate the formation and evolution of stellar black hole binaries (BHBs) around supermassive black holes (SMBHs). We show that dynamical interactions can efficiently drive “in situ” BHB formation if the SMBH is surrounded by a massive nuclear cluster, while orbitally segregated star clusters can replenish the BHB reservoir in SMBH-dominated nuclei. We discuss how the combined action of stellar hardening and mass segregation sculpts the BHB orbital properties. We use direct N-body simulations including post-Newtonian corrections up to 2.5 order to study the BHB–SMBH interplay, showing that the Kozai–Lidov mechanism plays a crucial role in shortening the lifetime of binaries. We find that the merging probability weakly depends on the SMBH mass in the

range, leading to a merger rate

yr−1 Gpc−3 at redshift zero. Nearly 40% of the mergers have masses in the “BH mass gap,”

, thus indicating that galactic nuclei are ideal places to form BHs in this mass range. We argue that gravitational wave (GW) sources with component masses m
1 > 40 M⊙ and

would represent a strong indicator of a galactic nucleus origin. The majority of these mergers could be multiband GW sources in the local universe: nearly 40% might be seen by LISA as eccentric sources and, a few years later, as circular sources by LIGO and the Einstein Telescope, making decihertz observatories like DECIGO unique instruments to bridge the observations during the binary inspiral.
Deciphering the 3D Orion Nebula-I: Expanding Shells in the Huygens Region
Authors: O’Dell C. R. , Abel N. P. , Ferland G. J. 
Published: March 2020

Abstract
Based on imaging and spectroscopic data, we develop a 3D model for the Huygens Region of the Orion Nebula.

Ori C, the hottest star in the Trapezium, is surrounded by a wind-blown Central Bubble that opens SW into the Extended Orion Nebula. Outside of this feature lies a layer of ionized gas at about 0.4 pc from

Ori C. Both of these features are moving rapidly away from

Ori C with an expansion age for the Central Bubble of only 15,000 yr.
Transmitted, Pre-treatment and Acquired Antiretroviral Drug Resistance among Men who have Sex with Men and Transgender Women Living with HIV in Nigeria
Authors:   the TRUST/RV368 Study Group, Crowell Trevor A , Kijak Gustavo H , Sanders-Buell Eric , O'Sullivan Anne Marie , Kokogho Afoke , Parker Zahra F , Lawlor John , Polyak Christina S , Adebajo Sylvia , Nowak Rebecca G , Baral Stefan D , Robb Merlin L , Charurat Manhattan E , Ake Julie A , Ndembi Nicaise , Tovanabutra Sodsai 
Published: March 2020

Background Across sub-Saharan Africa, men who have sex with men (MSM) and transgender women (TGW) have disproportionately poor HIV treatment outcomes. Stigma and criminalization create barriers to health-care engagement and adherence to antiretroviral therapy (ART), potentially promoting the development of HIV drug resistance (HIVDR). We evaluated transmitted, pre-treatment and acquired HIVDR among MSM and TGW in Lagos and Abuja, Nigeria. Methods Adults with HIV RNA ≥1,000 copies/ml in the TRUST/RV368 cohort, including incident cases diagnosed via 3-monthly screening, underwent HIVDR testing using the Sanger sequencing method. Major mutations conferring resistance to nucleoside reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs) and protease inhibitors (PIs) were identified from the 2017 IAS-USA list. World Health Organization surveillance drug resistance mutations (SDRMs) were identified in ART-naive participants. Results From March 2013 to June 2017, 415 participants with median age 24 (interquartile range [IQR] 21–27) years, CD4+ T-cell count 370 (IQR 272–502) cells/mm3, and HIV RNA 4.73 (IQR 4.26–5.15) log10 copies/ml underwent HIVDR testing. SDRMs were observed in 36 of 373 ART-naive participants (9.7%, 95% confidence interval [95% CI 6.8, 13.1%]), including 8 of 39 incident cases (20.5%, [95% CI] 9.3, 36.5%). Among 42 ART-experienced participants, NNRTI resistance was detected in 18 (42.9%, 95% CI 27.7, 59.0%) and NRTI resistance in 10 (23.8%, 95% CI 12.0, 39.4%). No PI resistance was detected. Conclusions The high prevalence of transmitted and acquired drug resistance among Nigerian MSM and TGW living with HIV suggests the need for programmatic solutions to improve uninterrupted access to ART and timely switch to second-line regimens in cases of viral failure.
Deux aspects de la poésie de Reinhard Priessnitz
Authors: Kaltenbeck Franz 
Published: March 2020

Franz Kaltenbeck rend hommage au poète viennois contemporain Reinhard Priessnitz, poète rare, trop vite disparu (1945-1985), et se propose, à travers le commentaire de deux poèmes : « reise » (voyage) et « der blaue wunsch » (le vœu bleu), de mettre en lumière le lien au réel qui animait l’écriture de Priessnitz ; rappelant qu’à une question posée par Jacques Roubaud sur le moteur de sa poésie, Priessnitz avait répondu : « l’amour », c’est l’abrupt de cette dimension que Franz Kaltenbeck puise dans « voyage », dispersion plutôt qu’Éros de l’union. « le vœu bleu », poème qui lui est dédié, est plus immédiatement abstrait – nulle chose dans le texte allemand (difficulté de la traduction) – et plus encore propice à une approche lacanienne ; c’est une grammaire pulsionnelle que Franz Kaltenbeck explicite alors strophe à strophe, dans l’impératif de « ce qui est à écrire ».
Ethical Assumptions and Implications of Hermeneutic Practice as Practical Wisdom
Authors: Rohden Luiz 
Published: March 2020

The goal of this paper is to justify the view that hermeneutical practice as a philosophical proposal cannot be reduced to the extraction of hidden meanings or the explication of text structures but instead contains ethical assumptions and implications. Following Ricœur’s work, I will show that literary texts are part of ethics insofar as they create different mental experiments about ideas and values. I will show that the interpretation of literary texts, woven by the free play of imagination, constitutes a practice in which readers have the possibility of reconfiguring their way of looking at the world and acting. The reading of literature is an exercise of practical wisdom by enabling readers to rehearse and enable the implementation of the good life in just institutions. To achieve the paper’s goal, I initially discuss ethical assumptions present in literary texts. I then develop Ricœur’s notion of hermeneutics as used for the interpretation of literature. Finally, I propose several ethical implications resulting from the hermeneutical practice that is related to literary texts.
Platão e a Batcaverna
Authors: Ribeiro Lúcia Helena Marques 
Published: March 2020

A palavra grega Paideia nos remete à essência do que a educação deve representar naquilo que precisa proporcionar como formação humanística para que forme cidadãos éticos que poderão exercer um papel positivo na sociedade, e a educação literária é parte disso. A Literatura, desde os seus primórdios, cumpre o seu papel de criar mitos como forma de representar as ações humanas, de recriar perspectivas históricas por meio das ações dos heróis e suas impossíveis trajetórias, para mostrar aos homens as diversas possibilidades de transcender o cotidiano. O ensino da Literatura, para cumprir o seu papel, deve empreender uma caminhada de resgate de leitores, assim como fizemos a nossa própria caminhada desde o primeiro gibi, ou do primeiro conto de fadas. É objetivo deste trabalho buscar uma reflexão sobre o resgate da leitura a partir da importância dos mitos no reforço do imaginário, na motivação afetiva, para a construção de sentido.

Palavras-chave: Literatura, leitura, mito, herói.
A perspectiva decolonial e a (re)leitura dos conceitos geográficos no ensino de geografia
Authors: Suess Rodrigo Capelle , Silva Alcinéia De Souza 
Published: March 2020

O modo de colonização da América deixou marcas que refletem nas estruturas econômica, de poder e nos modos de ser, saber e pensar, sobretudo dos países latino-americanos. No Brasil, a imposição eurocêntrica na produção de conhecimentos reflete até hoje na educação, de modo geral, e na Geografia Escolar, de modo específico, pois ainda se encontram permeadas pelo colonialismo do saber. Partindo desse contexto e na busca de uma descolonização da Geografia enquanto disciplina escolar, o objetivo desse artigo é analisar como a perspectiva decolonial pode contribuir para uma educação crítica e humanista em Geografia, especialmente por meio da (re)leitura dos conceitos geográficos. Construído a partir de pesquisa bibliográfica, esses conceitos foram (re)elaborados a partir de temáticas decoloniais como o papel da América no sistema-mundo, o eurocentrismo, a ideia de raça associada a um projeto de dominação, a constituição do Estado-nação moderno, a crítica ao desenvolvimento e ao modelo civilizatório, a colonialidade do poder, colonialidade do ser, colonialidade do saber, e a interculturalidade e a transculturalidade como ferramentas críticas e de transformação. Tal (re)leitura se configura como via de descolonização da Geografia Escolar e de construção de um novo modelo civilizatório que considere diversos saberes, diversas vozes, identidades, maneiras de ser, e novas formas de se constituir e organizar a sociedade.
Uso e ocupação das áreas de preservação permanente e o perigo de inundações no alto curso da bacia hidrográfica do rio Anil, São Luís - Maranhão
Authors: Costa Cristiane Mouzinho , França Danyella Vale Barros , Silva Quésia Duarte da , Santana Ricardo Gonçalves , Teixeira Estevânia Cruz 
Published: March 2020

As inundações são fenômenos naturais que fazem parte da dinâmica hidrológica dos rios. Os fenômenos em questão podem ser agravados por fatores antrópicos, como o uso e ocupação inadequados e consequente descumprimento da legislação ambiental. O presente artigo tem como objetivo analisar a ocupação das áreas de preservação permanente e o perigo de inundações no alto curso da bacia hidrográfica do rio Anil, São Luís – MA. Para isto, realizou-se trabalhos de campo, mapeamento do uso e cobertura da terra, delimitação das áreas de preservação permanente de acordo com a Lei nº 12.651, de 25 de maio de 2012, e delimitação das manchas de perigo de inundação. Desta forma mapeou-se sete manchas de perigo de inundação, todas localizadas em APPs, o que constata que estas não cumprem a função ambiental prevista na Lei no que se refere às inundações, acarretando perigo para a população exposta, devido ao uso e ocupação inadequados.