bluuebunny/crossref_metadata_2025_split huggingface dataset:
PELAKSANAAN STRATEGI PEMBELAJARAN INKUIRI
Authors: Sanjani Maulana Akbar 
Published: March 2020

Tujuan penulisan ini yaitu membahsan mengenai strategi pelaksanaan pembelajaran inkuiri. Strategi pembelajaran inquiry menyatakan bahwa guru sebagai sumber belajar bukanlah yang satu-satunya, masih banyak lagi sumber belajar yang dapat menunjang keberhasilan pembelajaran. Guru hanyalah sebagai fasilitator, pembimbing yang selalu mengarahkan siswa dalam pembelajaran. Siswa didesain sebagai penemu atau mencari pengetahuan itu, tugas seorang guru dalam mengelola siswa agar mendapatkan pengetahuan dan menjadi bermakna. Karena dengan bermakna pengetahuan akan masuk kedalam pengetahuan mereka, sehingga akan selalu terkenang oleh siswa. Siswa yang melakukan semuanya guru hanya menyiapkan, karena murid yang melakukan maka pembelajaran akan menjadi pengalaman yang bermakna untuk siswa.
PENGARUH TEKNIK MEMBACA INTENSIF TERHADAP KEMAMPUAN MENEMUKAN IDE POKOK PARAGRAF DALAM ARTIKEL “KPK BATMAN YANG LELAH” PADA SISWA KELAS XII SMA SWASTA PABA SECANGGANG KAPUPATEN LANGKAT
Authors: Rahayu Sri , Sidiqin M. Ali 
Published: March 2020

Tujuan penelitian ini adalah untuk mengetahui pengaruh teknik membaca intensif terhadap kemampuan menemukan ide pokok paragraf dalam artikel “KPK, Batman yang Lelah” pada siswa kelas XII SMA Swasta PABA Secanggang Kabupaten Langkat Tahun Pelajaran 2017/2018. Populasi yang diambil dari seluruh kelas XII SMA Swasta PABA Secanggang berjumlah 70 orang. Sampel yang digunakan dalam penelitian ini yaitu keseluruhan jumlah siswa kelas XII.1 dan XII.2 SMA Swasta PABA Secanggang sebanyak 70 orang. Untuk mendapatkan data yang diperlukan, pengumpulan data yang biasa disebut instrumen. Instrumen yang dilakukan dalam penelitian ini adalah tes. Tes yang dilakukan adalah tes objektif dan tes essay. Jenis penelitian kuantitatif dan analisis datanya menggunakan korelasi Product moment. Dari hasil korelasi yang besarnya 0,66 maka koefesien korelasi yang ditemukan adalah korelasi tinggi, sedangkan r tabel adalah 0,238 dan hasil dari thitung > ttabel yaitu 7,29 > 2,00 maka dari itu Ha = diterima dan Ho = ditolak. uji terdapat pengaruh teknik membaca intensif yang signifikan terhadap kemampuan menemukan ide pokok paragraf dalam artikel “KPK, Batman yang Lelah” pada siswa kelas XII SMA Swasta PABA Secanggang Kabupaten Langkat.
UPAYA MENINGKATKAN HASIL BELAJAR PKN PADA MATERI HAM MELALUI MODEL PEMBELAJARAN JIGSAW PADA SISWA KELAS X SMA PERSIAPAN STABAT TAHUN PELAJARAN 2017/2018
Authors: Syahrurozi Fikri , Irwan Syainul , Widodo Hadi 
Published: March 2020

Kegiatan pembelajaran yang baik merupakan integrasi dari berbagai komponen yang saling terkait dan tak terpisahkan antara tujuan pembelajaran, bahan pelajarn, metode pembelajaran dan cara penilaian. Dalam suatu kegiatan pembelajaran untuk mengaktifkan siswa sangat dibutuhkan adanya metode pembelajaran tepat. Salah satu pelajaran yang diajarkan dalam pembelajaran di sekolah adalah pelajaran Pendidikan Kewarganegaraan (PKn). Pembelajaran model pembelajaran jigsaw tipe Jigsaw memberi kesempatan pada siswa untuk bertukar pengetahuan dengan teman yang lebih banyak. Adanya kelompok ahli dan kelompok asal mengharuskan siswa berdiskusi dengan teman yang berbeda-beda, sehingga perbedaan pendapat dan keanekaragaman informasi lebih sering siswa temui. Hal tersebut akan memperkaya pengetahuan siswa. Dengan menerapkan model pembelajaran model pembelajaran kooperatif tipe jigsaw ini diharapkan dapat memberikan dampak yang positif dalam meningkatkan kemampuan dalam memahami materi PKn. Tujuan dari penelitian ini adalah untuk mengetahui peningkatan hasil belajar PKn pada materi HAM melalui model pembelajaran jigsaw pada siswa Kelas X SMA Persiapan Stabat tahun pelajaran 2017/2018. Penelitian ini dilaksanakan di SMA Persiapan Stabat. Populasi dalam penelitian ini adalah siswa kelas X yang berjumlah 82 siswa. Objek dalam penelitian ini adalah siswa kelas X yang berjumlah 40 siswa. Pada siklus I aktivitas guru berkategori baik sedangkan pada siklus II aktivitas guru berkategori sangat baik. Pada siklus I aktivitas siswa berkategori baik sedangkan pada siklus II aktivitas siswa berkategori sangat baik.. Dari hasil perhitungan diperoleh nilai rata-rata pada siklus I sebesar 68,1 dengan ketuntasan klasikal 35% sedangkan pada siklus II memperoleh nila rata-rata sebesar 82,6 dengan ketuntasan klasikal 100%. Hal ini menunjukan terjadi perubahan yang baik dari hasil tes siklus I ke tes siklus II. Kata Kunci : hasil belajar PKn materi HAM, model pembelajaran jigsaw
APLIKASI PENJADWALAN OTOMATIS UJIAN PROPOSAL DAN SIDANG SKRIPSI PADA FAKULTAS ILMU KOMPUTER UNIVERSITAS MUHAMMADIYAH RIAU
Authors: Mukhtar Harun 
Published: March 2020

Penjadwalan otomatis ujian proposal dan sidang skripsi pada Fakultas Ilmu Komputer Universitas Muhammadiyah Riau merupakan proses penyusunan jadwal pelaksanaan yang menginformasikan sejumlah penjadwalan ujian proposal dan sidang skripsi, nama dosen pembimbing, ruang dan waktu ujian proposal dan sidang skripsi. Penyusunan jadwal secara manual yang sedang berjalan saat ini cenderung membutuhkan waktu yang lebih lama dan ketelitian yang cukup bagi akademik untuk membuat jadwal. Penelitian ini bertujuan untuk mempermudah akademik dalam pengelolaan data ujian proposal dan sidang skripsi dalam penginputan data mahasiswa. Adapun pendekatan yang digunakan dalam penelitian ini adalah pendekatan terstruktur yang menggunakan beberapa alat bantu seperti Context Diagram (CD), Data Flow Diagram (DFD), dan Entity Relationship Diagram (ERD). Metode pengembangan software yang digunakan adalah metode System Development Life Cycle (SDLC). Berdasarkan hasil penelitian ini dapat disimpulkan bahwa, telah berhasil membuat perangkat lunak Penjadwalan otomatis ujian proposal dan sidang skripsi pada Fakultas Ilmu Komputer Universitas Muhammadiyah Riau yang dapat membantu akademik dalam pengelolaan data mahasiswa.
Kata kunci : penjadwalan otomatis ujian,proposal dan sidang skripsi, web.
Spot Model for Identifications of Periods in Asynchronous Polars
Authors: Wang Qishan , Qian Shengbang , Han Zhongtao , Fang Xiaohui , Zang Lei , Liu Wei 
Published: March 2020

Abstract
We improved the discless accretion models in Wynn & King considering the effects of the changing aspect due to the white dwarf (WD) spin and the variable feeding intensity caused by the asynchronism, and set up a more general spot model that is not sensitive to the different forms of these effects and can be applied for the period analysis of the optical and X-ray light curve. The spot model can produce the power spectra compatible with the observations, and its simulations limit the ratio P
spin/P
orb < 2 between the powers at the WD spin and the binary orbital frequencies, which is a strong criterion for identification of periods. Then we recognize the periods for CD Ind, BY Cam, and 1RXS J083842.1-282723. The spot model reveals a complex accretion geometry in the asynchronous polars (APs), which may indicate that the complex magnetic field causes their asynchronism. We think 1RXS J083842.1-282723 is a prepolar because of its highest asynchronism and stable light curve. Giving the unstable accretion process in APs, the period analysis of the long-term light curve will make the orbital signal prominent.
Hot Gas in Galaxy Halos Traced by Coronal Broad Lyα Absorbers
Authors: Richter Philipp 
Published: March 2020

Abstract
We explore the possibility to systematically study the extended, hot gaseous halos of low-redshift galaxies with coronal broad Lyα absorbers (CBLAs). These are weak, thermally broadenend H i absorption lines arising from the tiny fraction of neutral hydrogen that resides in the collisionally ionized, million-degree halo gas in these galaxies. Using a semi-analytic approach, we model the spatial density and temperature distribution of hot coronal gas to predict strength, spectral shape, and cross section of CBLAs as a function of galaxy-halo mass and line-of-sight impact parameter. For virial halo masses in the range log

, the characteristic logarithmic CBLA H i column densities and Doppler parameters are log N(H i) = 12.4–13.4 and b(H i) = 70–200 km s−1, indicating that CBLAs represent weak, shallow spectral features that are difficult to detect. Yet, the expected number density of CBLAs per unit redshift in the above given mass range is

(CBLA) ≈ 3, implying that CBLAs have a substantial absorption cross section. We compare the model predictions with a combined set of UV absorption-line spectra from the Hubble Space Telescope (HST)/Cosmic Origins Spectrograph and HST/Space Telescope Imaging Spectrograph that trace the halos of four low-redshift galaxies. We demonstrate that CBLAs might already have been detected in these spectra, but the complex multi-component structure and the limited signal-to-noise ratio complicate the interpretation of these CBLA candidate systems. Our study suggests that CBLAs represent a very interesting absorber class that potentially will allow us to further explore the hot coronae of galaxies with UV spectral data.
A New Method to Constrain the Origins of Dark-matter-free Galaxies and Their Unusual Globular Clusters
Authors: Leigh Nathan W. C. , Fragione Giacomo 
Published: March 2020

Abstract
We present a novel method to constrain the past collisional evolution of observed globular cluster (GC) systems, in particular their mass functions. We apply our method to a pair of galaxies hypothesized to have recently undergone an episode of violent relaxation due to a strong galaxy–galaxy interaction, namely, NGC 1052-DF2 and NGC 1052-DF4. We begin by exploring the observational evidence for a collisional origin for these two recently discovered ultradiffuse galaxies observed in the NGC 1052 group, posited in the literature to be dark matter free. We compute the timescales for infall to the central nucleus due to dynamical friction for the GCs in these galaxies, using the shortest of these times to constrain how long ago a galaxy–galaxy interaction could have occurred. We go on to quantify the initial GC numbers and densities needed for significant collisional evolution to occur within the allotted times and show that, if the hypothesis of a previous galaxy–galaxy interaction is correct, a paucity of low-mass GCs should be revealed by deeper observational surveys. If any are found, they should be more spatially extended than the currently observed GC population. Finally, we apply our method to these galaxies, in order to illustrate its efficacy in constraining their dynamical evolution. Our results motivate more complete observations of the GC luminosity functions in these galaxies, in addition to future studies aimed at combining the method presented here with a suite of numerical simulations in order to further constrain the origins of the curious GC populations in these (and other) galaxies.
Une réglementation qui résiste aux plateformes de VTC
Authors: Kahmann Marcus 
Published: March 2020

En 2013, Uber est le premier opérateur de plateforme qui entre sur le marché du transport individuel de personnes. Divers acteurs professionnels se mobilisent aussitôt pour contester ses services devant les tribunaux. À plusieurs reprises, ils sont déclarés illicites sur le territoire allemand. L’opérateur se voit ainsi obligé de se conformer au cadre réglementaire fédéral. Du fait de cette jurisprudence défavorable, son implantation reste plutôt limitée. La réforme du cadre réglementaire pourrait offrir une sortie de l’impasse réglementaire. Elle est annoncée depuis 2018 mais peine à voir le jour.
Le rôle clé du pouvoir judiciaire dans la régulation des plateformes de VTC
Authors: Carelli Rodrigo , Seferian Gustavo 
Published: March 2020

Le texte fait une lecture critique du processus de réglementation des opérateurs de plateformes de VTC au Brésil, en analysant particulièrement la ville de Rio de Janeiro, emblématique de ce qu’il se passe ailleurs dans le pays. Il présente le processus difficile d’entrée de ces opérateurs sur le marché et le rôle important que le pouvoir judiciaire local a joué dans leur légalisation, à l’encontre de la municipalité et des chauffeurs de taxi ; la Cour suprême est ensuite allée dans le même sens que le pouvoir judiciaire local au niveau national.
Synoptic-scale controls of fog and low-cloud variability in the Namib Desert
Authors: Andersen Hendrik , Cermak Jan , Fuchs Julia , Knippertz Peter , Gaetani Marco , Quinting Julian , Sippel Sebastian , Vogt Roland 
Published: March 2020

Abstract. Fog is a defining characteristic of the climate of the Namib Desert, and its water and nutrient input are important for local ecosystems. In part due
to sparse observation data, the local mechanisms that lead to fog occurrence in the Namib are not yet fully understood, and to date, potential
synoptic-scale controls have not been investigated. In this study, a recently established 14-year data set of satellite observations of fog and low
clouds in the central Namib is analyzed in conjunction with reanalysis data in order to identify synoptic-scale patterns associated with fog and low-cloud
variability in the central Namib during two seasons with different spatial fog occurrence patterns. It is found that during both seasons, mean sea
level pressure and geopotential height at 500 hPa differ markedly between fog/low-cloud and clear days, with patterns indicating the presence of
synoptic-scale disturbances on fog and low-cloud days. These regularly occurring disturbances increase the probability of fog and low-cloud
occurrence in the central Namib in two main ways: (1) an anomalously dry free troposphere in the coastal region of the Namib leads to stronger
longwave cooling of the marine boundary layer, increasing low-cloud cover, especially over the ocean where the anomaly is strongest; (2) local
wind systems are modulated, leading to an onshore anomaly of marine boundary-layer air masses. This is consistent with air mass back trajectories and
a principal component analysis of spatial wind patterns that point to advected marine boundary-layer air masses on fog and low-cloud days, whereas
subsiding continental air masses dominate on clear days. Large-scale free-tropospheric moisture transport into southern Africa seems to be a key
factor modulating the onshore advection of marine boundary-layer air masses during April, May, and June, as the associated increase in greenhouse
gas warming and thus surface heating are observed to contribute to a continental heat low anomaly. A statistical model is trained to discriminate
between fog/low-cloud and clear days based on information on large-scale dynamics. The model accurately predicts fog and low-cloud days,
illustrating the importance of large-scale pressure modulation and advective processes. It can be concluded that regional fog in the Namib is predominantly
of an advective nature and that fog and low-cloud cover is effectively maintained by increased cloud-top radiative cooling. Seasonally different
manifestations of synoptic-scale disturbances act to modify its day-to-day variability and the balance of mechanisms leading to its formation and
maintenance. The results are the basis for a new conceptual model of the synoptic-scale mechanisms that control fog and low-cloud variability in the
Namib Desert and will guide future studies of coastal fog regimes.
Reading in Bed with Troilus and Criseyde
Authors: Davidson Clare 
Published: March 2020

Abstract
The metaphorical and literal representation of intimate interpersonal physicality in Troilus and Criseyde has been shaped by critical interpretations that assume natural sexual behavior to be progressive, hierarchical, and consummative. Removing Troilus and Criseyde's affair from the constraints of a “sexual” narrative unveils an alternative Middle English metaphorical language of embodied desire that disrupts modern expectations of arousal. This article promotes a methodological initiative in the cultural development and understanding of embodied feelings, especially those related to arousal, in order to respond to the poetic construction of an ethically-engaged love-prone reader in the medieval poem. By focusing on the depiction of intimacy and desire in Book III, this article queries the narrative basis of sexual intercourse as a consummation-driven activity, and the teleological basis of sexual intercourse as a manifestation of biological purpose or a matter of “human nature.”
Colorful Fluorine‐Free Superhydrophobic Polyester Fabric Prepared via Disperse Dyeing Process
Authors: Oh Ji‐Hyun , Park Chung Hee 
Published: March 2020

AbstractSuperhydrophobic fabrics suffer from issues, such as poor breathability, surface color and handle changes, and toxicity because of additional chemical coating. Therefore, to resolve these issues, colorful fluorine‐free superhydrophobic polyester fabrics are prepared by controlling the conditions of a conventional disperse dyeing process. Alkaline hydrolysis, a pretreatment process in the dyeing process, is modified to create nanocraters on the surface of microrough polyester fabric. Then, the hydrolyzed polyester fabric is dyed with two different dyestuffs accompanied by thermal aging to lower the surface energy. The developed polyester fabrics become superhydrophobic and show the static contact angles over 160° and the shedding angles below 10°. Furthermore, the superhydrophobic polyester fabric exhibits improved color fastness as well as water vapor transmission rate and air permeability, while the handle properties of the alkaline‐hydrolyzed polyester fabric remain unchanged after dyeing and thermal aging. Finally, the self‐cleaning ability of the developed fabric is demonstrated by perfectly removing silicon carbide particles from its surface. Therefore, the developed fluorine‐free and superhydrophobic polyester fabric not only has color but also is nontoxic and environmentally friendly and can be readily recycled as it has no coated chemical to be removed. Thus, it has great potential for practical applications.
Synthesis of Isoindolinones through Intramolecular Amidation of ortho‐Vinyl Benzamides
Authors: Wei Wen‐tao , Chen Zhen‐yu , Lin Yong‐lu , Chen Ri‐xing , Wang Qi , Wu Qing‐guang , Liu Si‐jun , Yan Ming , Zhang Xue‐jing 
Published: March 2020

AbstractA synthetic approach of isoindolinones through intramolecular amidation of ortho‐vinyl benzamides was reported. A variety of N‐aryl isoindolinone derivatives were prepared in moderate to excellent yields using perfluorobutyl iodide as oxidant.magnified image
A study of the influence of temperature and detergent concentration on the removal of lipstick stains using air‐supersaturated water, where fine bubbles are generated by ultrasonic stimulation
Authors: Tanaka Yoshinori , Yamamoto Yasushi , Ueda Yoshikatsu 
Published: March 2020

AbstractThe formation of fine bubbles with a diameter between 10 and 20 μm was observed upon the passage of air‐supersaturated water, in which air is pressurized and dissolved, through a water passage in which supersonic stimulation was given to the water. It was confirmed that the inside diameter of the fine bubbles increases as the distance from the ultrasonic stimulation point becomes greater. In verifying the efficiency of cleaning a lipstick stain, it was shown that by using water containing fine bubbles, there is a possibility of obtaining a cleaning efficiency almost equivalent to that achieved by cleaning with water of a high temperature or with a high concentration of detergent, even at a low temperature, with low detergent concentration. It was shown that the efficiency of cleaning the oil components, which were made easily soluble in water, had become extremely high, when using water containing fine bubbles. In conditions where the melting of the oil component itself is not accelerated (that is, at a low temperature, without using detergents), the cleaning efficiency of water containing fine bubbles tended to be increased compared with that of water not containing fine bubbles.
π‐Complexes of Diborynes with Main Group Atoms
Authors: Ewing William C. , Dellermann Theresa , Angel Wong Y. T. , Mattock James D. , Vargas Alfredo , Bryce David L. , Dewhurst Rian D. , Braunschweig Holger 
Published: March 2020

AbstractWe present herein an in‐depth study of complexes in which a molecule containing a boron‐boron triple bond is bound to tellurate cations. The analysis allows the description of these salts as true π complexes between the B−B triple bond and the tellurium center. These complexes thus extend the well‐known Dewar‐Chatt‐Duncanson model of bonding to compounds made up solely of p block elements. Structural, spectroscopic and computational evidence is offered to argue that a set of recently reported heterocycles consisting of phenyltellurium cations complexed to diborynes bear all the hallmarks of π‐complexes in the π‐complex/metallacycle continuum envisioned by Joseph Chatt. Described as such, these compounds are unique in representing the extreme of a metal‐free continuum with conventional unsaturated three‐membered rings (cyclopropenes, azirenes, borirenes) occupying the opposite end.
Scientists in education: A biomedical research institute's perspective
Authors: Guinovart Joan J. , Arimon Muriel 
Published: March 2020

AbstractThe Institute for Research in Biomedicine (IRB Barcelona) is a world‐class research center devoted to understanding fundamental questions about human health and disease. In addition to conducting multidisciplinary research of excellence, IRB Barcelona is committed to maintaining an open dialogue with the public about its work, fostering scientific vocations and promoting scientific culture in society. In this regard, the institute has several public engagement and science education initiatives to reach these goals. In this article, we highlight two projects directed toward primary school and secondary school students, respectively: the Tandem Project and the Crazy About Biomedicine Programme. Although each of these activities has slightly different objectives and target audiences, they share the commitment of the institute to contribute to the science education of young students. We believe that it is the responsibility of research institutes to promote these kinds of initiatives, which have the potential to spark passion for science and thus foster scientific vocations. The new generation of scientists is in our hands.