bluuebunny/crossref_metadata_2025_split huggingface dataset:
New Suns in the Cosmos. V. Stellar Rotation and Multifractality in Active Kepler Stars
Authors: de Freitas D. B. , Nepomuceno M. M. F. , Alves Rios L. D. , Das Chagas M. L. , De Medeiros J. R. 
Published: August 2019

Abstract
In the present study, high-precision time series photometry for the active Kepler stars is described in the language of multifractals. We explore the potential of using the rescaled-range analysis (R/S) and multifractal detrended moving average analysis methods to characterize the multiscale structure of the observed time series from a sample of ∼40,000 active stars. Among these stars, 6486 have surface differential rotation measurement, whereas 1846 have no signature of differential rotation. As a result, the Hurst exponent (H) derived from both methods shows a strong correlation with the period derived from rotational modulation. In addition, the variability range R
var reveals how this correlation follows a high activity “line.” We also verify that the H-index is an able parameter for distinguishing the different signs of stellar rotation that can exist between the stars with and without differential rotation. In summary, the results indicate that the Hurst exponent is a promising index for estimating photometric magnetic activity.
Stellar Populations of Nine Passive Spiral Galaxies from the CALIFA Survey: Are They Progenitors of S0s?
Authors: Pak Mina , Lee Joon Hyeop , Jeong Hyunjin , Kim Suk , Smith Rory , Lee Hye-Ran 
Published: August 2019

Abstract
We investigate the stellar population properties of passive spiral galaxies in the Calar Alto Legacy Integral Field Area survey. Nine spiral galaxies that have (NUV−r > 5 (NUV is near-UV filter) and no/weak nebular emission lines in their spectra are selected as passive spirals. Our passive spirals lie in the redshift range of 0.001 < z < 0.021 and have a stellar mass range of 10.2 < log(M
⋆/M
⊙) < 10.8. They clearly lie in the domain of early-type galaxies in the Wide-field Infrared Survey Explorer infrared color–color diagram. We analyze the stellar populations out to two effective radii, using the best-fitting model to the measured absorption line-strength indices in the Lick Observatory Image Dissector Scanner system. We find that stellar populations of the passive spirals span a wide range, even in their centers, and hardly show any common trend among themselves either. We compare the passive spirals with Lenticular (S0-type) galaxies (S0s) selected in the same mass range. S0s cover a wide range in age, metallicity, and [α/Fe], and stellar populations of the passive spirals are encompassed in the spread of the S0 properties. However, the distribution of passive spirals are skewed toward higher values of metallicity, lower [α/Fe], and younger ages at all radii. These results show that passive spirals are possibly related to S0s in their stellar populations. We infer that the diversity in the stellar populations of S0s may result from different evolutionary pathways of S0 formation, and passive spirals may be one of the possible channels.
Observations of Slow Solar Wind from Equatorial Coronal Holes
Authors: Wang Y.-M. , Ko Y.-K. 
Published: August 2019

Abstract
Because of its distinctive compositional properties and variability, low-speed (≲450 km s−1) solar wind is widely believed to originate from coronal streamers, unlike high-speed wind, which comes from coronal holes. An alternative scenario is that the bulk of the slow wind (excluding that in the immediate vicinity of the heliospheric current sheet) originates from rapidly diverging flux tubes rooted inside small coronal holes or just within the boundaries of large holes. This viewpoint is based largely on photospheric field extrapolations, which are subject to considerable uncertainties and do not include dynamical effects, making it difficult to be certain whether a source is located just inside or outside a hole boundary, or whether a high-latitude hole will be connected to Earth. To minimize the dependence on field-line extrapolations, we have searched for cases where equatorial coronal holes at central meridian are followed by low-speed streams at Earth. We describe 14 examples from the period 2014–2017, involving Fe xiv 21.1 nm coronal holes located near active regions and having equatorial widths of ∼3°–10°. The associated in situ wind was characterized by speeds v ∼ 300–450 km s−1 and by O7+/O6+ ratios of ∼0.05–0.15, with v showing the usual correlation with proton temperature. In addition, consistent with other recent studies, this slow wind had remarkably high Alfvénicity, similar to that in high-speed streams. We conclude that small coronal holes are a major contributor to the slow solar wind during the maximum and early post-maximum phases of the solar cycle.
High-resolution Observations of Dynamics of Superpenumbral Hα Fibrils
Authors: Jing Ju , Li Qin , Liu Chang , Lee Jeongwoo , Xu Yan , Cao Wenda , Wang Haimin 
Published: August 2019

Abstract
We present high-resolution Hα observations of a small solar pore in NOAA active region 12661, using the 1.6 m Goode Solar Telescope equipped with high-order adaptive optics at Big Bear Solar Observatory. The observations reveal copious fine-scale chromospheric superpenumbral fibrils (with an average cross-sectional width of ∼0.″17 ± 0.″03), along with associated transit and intermittent flows with apparent speeds of 5–14 km s−1. Wavelet analysis and the spatio-temporal pattern of superpenumbral fibrils suggest that the observed flows along fibrils are not likely an oscillation/wave phenomenon. Based on our pseudo-Dopplergrams, we suggest that the observed flows may be a phenomenon similar to inverse Evershed flows in the chromosphere. The three-dimensional potential field model indicates that the pore and the surrounding fibrils are enclosed by fan-field lines forming a separatrix dome configuration. Such a magnetically confined configuration may help to maintain the steadfastness of the superpenumbral fibril dynamics.
Magnetic Activities of M-type Stars Based on LAMOST DR5 and Kepler and K2 Missions
Authors: Lu Hong-peng , Zhang Li-yun , Shi Jianrong , Han Xianming L. , Fan Dongwei , Long Liu , Pi Qingfeng 
Published: August 2019

Abstract
We performed a statistical study of magnetic activities of M-type stars by combining the spectra of LAMOST DR5 with light curves from the Kepler and K2 missions. We mainly want to study the relationship between chromospheric activity and flares, and their relations of magnetic activity and rotation period. We have obtained the maximum catalog of 516,688 M-type stellar spectra of 480,912 M stars from LAMOST DR5 and calculated their equivalent widths of chromospheric activity indicators (Hα, Hβ, Hγ, Hδ, Ca ii H&K, and He i D3). Using the Hα indicator, 40,464 spectra of 38,417 M stars show chromospheric activity, and 1791 of these 5499 M-type stars with repeated observations have Hα variability. We used an automatic detection plus visual inspection method to detect 17,432 flares on 8964 M-type stars from the catalog by cross-matching LAMOST DR5 and the Kepler and K2 databases. We used the Lomb–Scargle method to calculate their rotation periods. We find that the flare frequency is consistent with the ratio of activities of these chromospheric activity indicators as a function of spectral type in M0–M3. We find the equivalent widths of Hα and Ca ii H have a significant statistical correlation with the flare amplitude in M-type stars. We confirm that the stellar flare is affected by both the stellar magnetic activity and the rotation period. Finally, using the Hα equivalent width equal to 0.75 Å and using the rotation period equal to 10 days as the threshold for the M-type stellar flare time frequency are almost equivalent.
A standardized European trapping protocol – perspectives for long-term studies
Authors: Assmann Thorsten , Boutaud Estève , Drees Claudia , Zumstein Pascale 
Published: August 2019

Pitfall traps have a long tradition in carabidology and have been used for more than a century (e.g. over a century ago by Reitter). However, different trap designs were and are often used (e.g. preservative liquids, trap diameters, with or without roof). The resulting lack of comparability undermines the suitability of the catches, as for many modern ecological and conservation biological questions, the compilation of data across large geographical scales is important. This applies in particular to long-term studies, which are currently debated in Central Europe to mitigate insect decline. Therefore, standardization of the trapping protocol is urgently needed.
Here we propose a trapping method protocol based on the protocols for long-term research in North America and Great Britain. In an open discussion the design and further research approaches have been debated with the participants of the 19th ECM in Rennes. A pilot study using two trap diameters and two preservation fluids allowed us to test the suitability of the new trap design.
The aim of this contribution is the standardization of the trapping protocol and to stimulate discussions about joint projects which help us to understand and conserve the structure and function of ground beetle communities in Europe.
L’art « suisse » et son histoire (1755-1983)
Authors: Bätschmann Oskar , Baumgartner Marcel 
Published: August 2019

La question de savoir s’il existe véritablement « un art suisse » ou s’il n’y a, au contraire, que « des artistes suisses » revient comme un leitmotiv dans l’historiographie de l’art en Suisse. Cependant, il faut aussi prendre en considération les interactions qui existent entre les efforts fournis pour créer un art suisse national et les recherches des historiens d’art. Des problèmes particuliers résultent des implications de l’histoire des styles et de celle des influences (« retard stylistique », « mélange des styles », « provincialisme »), ainsi que de la distinction faite entre art « supérieur » et art « inférieur » dans un pays qui « est pauvre en œuvres éminentes » (Rahn). Il apparaît que la littérature populaire (ouvrages sur la civilisation et la culture) et les histoires régionales de l’art sont susceptibles d’aborder cette situation particulière d’une manière souvent plus impartiale que l’histoire de l’art proprement dite.
'n Biologies-gefundeerde hipotese in verband met die ontslaan van hakkel
Authors: Uys I. C. 
Published: August 2019

'n Kritiese evaluasie van verskeie teorieë, sowel as navorsingsresultate op die gebied van hakkel, dui op baie leemtes, veral met betrekking tot die geheel-beeld van die probleem. Bewys word gelewer dat al die verskillende teoriee alleenlik sekere fasette van die probleem verklaar, maar nie almal nie. Die grootste onduidelikheid is veral gevind ten opsigte van die aanvang van hakkel. 'n Studie van sekere biologiese verskynsels, wat spraak- en taalgedrag ten grondslag lê, lewer 'n moontlike verklaring vir sommige van hierdie onbeantwoorde vrae. Hakkel word beskou as 'n versteuring in ritmiese patroonvorming as 'n temporale verskynsel. Klem word veral gele op die fisiologiese onvermoe tot tydsberekening in die uiting van lettergrepe. Dit word gesien as 'n onder-breking in die ritmiese vloei van spraak as gevolg van 'n koordinasieafwyking, inteenstelling met onderbrekings op die supramorfemiese vlak (wat as normale spraak aanvaar word) as gevolg van besluite in verband met die ontwikkeling van sinne. Die hoop word uitgespreek dat hierdie hipotese as stimulus tot eksperimente sal dien.
Die ontwikkeling en toetsing van artikulasievermoëns by die Afrikaanssprekende kind
Authors: Lotter Elsie C. 
Published: August 2019

Daar bestaan tans geen gestandaardiseerde Afrikaanse artikulasietoets nie en ontwikkelingsnorms vir die klanke van Afrikaans is nog nie tevore opgestel nie. In hierdie studie is gepoog om 'n stel ouderdomsnorms vir die artikulasie-vermoë van die Afrikaanssprekende kind daar te stel en om 'n voorlopige vorm van 'n Afrikaanse Artikulasietoets vir gebruik by jong kinders op te stel. Die gegewens van 999 proefpersone (499 seuns en 500 dogters) tussen die ouderdomme 3-9 en 9-6 jaar is verwerk vir die vasstelling van die ontwikkelings norms. Die toetsmateriaal vir die artikulasietoets is gekies na aanleiding van die response van 2315 proefpersone. Benewens 'n woordelys vir gebruik as artikulasie-inventaris, word verskeie verwerkings en toepassings van verkreë response voorgestel. Daar word aanbeveel dat die voorlopige toetsformaat die volgende insluit: 'n Tabel vir die optekening van response; gegewens vir die berekening van algemene spraakverstaanbaarheid; materiaal vir die ontlokking van 'n monster van aaneenlopende spraak; 'n metode vir die ontleding van foutresponse; en 'n stimuleerbaarheids-subtoets vir diagnostiese doeleindes.
Audiometric Weber and Rinne test as compared pure-tone thresholds
Authors: Thompson Alison K. 
Published: August 2019

Results of the audiometric Weber and Rinne tests were compared to pure tone thresholds in 185 Bantu patients. The frequency of 1000 Hz was selected as being most suitable for Weber and Rinne testing. The Weber was found to be of limited diagnostic value even with unilateral conductive losses whilst the Rinne displays a fair degree of efficiency and is of value as a routine supplement to audiometric threshold tests.
The relationship between phonology and inflectional morphology in an agrammatic aphasic
Authors: Kobrin Meryl , Wolk Lesley 
Published: August 2019

The interaction between phonological and morphological breakdown in an agrammatic aphasic was investigated. Three linguistic tasks were constructed which were presented via two modes, reading and repetition. Results revealed that purely phonological consonant clusters were easier than clusters which contain a morphological component, and that these categories could be differentiated in terms of phonological error type. Inflectional omission was conditioned by phonological characteristics of the preceding segment. There was an interaction between the phonological and morphological hierarchies of difficulty in inflections which are homonyms phonologically. Findings suggest an interdependence between phonological and morphological breakdown in the agrammatic aphasic examined. Results were discussed with reference to clinical implications.
Die voorkomsfrekwensie van oor- en gehoorpatologie by kinders in die afgesonderde gemeenskap van Tshikunda - Malema
Authors: Meyer Santie , Van den Berg Carlin 
Published: August 2019

Hierdie navorsing het ten doel die bepaling van die aard en voorkoms van oor-en gehoorpatalogie by 'n afgesonderde gemeenskap in Venda. Honderd drie-en-vyftig kinders is aan 'n siftingsprosedure wat uit 'n oor-, neus- en keelondersoek, impedans- en suiwertoonsiftoudiometrie bestaan, onderwerp. Uit die resultate blyk dit dat 15,2% van die getoetste populasie oor- en gehoorprobleme het. Die patologie wissel van middeloorpatologie (13,4%) tot sensories-neurale patologie (1,8%). Dit wil dus voorkom asof die voorkoms van oor- en gehoorprobleme onder hierdie bevolking relatief laag is. Dit bevestig vorige navorsing wat bevind dat die algemene gesondheid van hierdie bevolking goed is.
Oraties als barometer
Authors: Grüttemeier Ralf 
Published: August 2019

Abstract
While Dutch literary studies are in a critical situation according to many, this is less often heard with regard to Dutch linguistics. Against this background, the article analyses recent inaugural lectures of Dutch literary scholars (from the Netherlands and from Germany) with regard to types of knowledge-production that can be taken from these lectures. It turns out that the accumulation of specific disciplinary knowledge does not seem to be the dominant programme of literary studies of modern Dutch literature in the Netherlands.
A case study of the large-scale traveling ionospheric disturbances in the eastern Asian sector during the 2015 St. Patrick's Day geomagnetic storm
Authors: Liu Jing , Zhang Dong-He , Coster Anthea J. , Zhang Shun-Rong , Ma Guan-Yi , Hao Yong-Qiang , Xiao Zuo 
Published: August 2019

Abstract. This study presents a comprehensive observation of the large-scale traveling
ionospheric disturbances (LSTIDs) in the eastern Asian sector during the 2015
St. Patrick's Day (17 March 2015) geomagnetic storm. For the first time, three
dense networks of GPS receivers in China and Japan are combined together to
obtain the two-dimensional (2-D) vertical total electron content (VTEC)
perturbation maps in a wider longitudinal range than previous studies in
this region. Results show that an LSTID spanning at least 60∘ in longitude
(80–140∘ E) occurs as a result of possible atmospheric gravity waves (AGWs)
propagating from high to lower latitudes at around 09:40–11:40 UT (universal time), and the
crest of this LSTID shows a tendency of dissipation starting from the eastern
side. The manifestation of the 2-D VTEC perturbation maps is in good
agreement with the recordings from two high-frequency Doppler sounders and the
iso-frequency lines from eight ionosondes. Then, the propagation parameters of
the LSTIDs are estimated by applying least-square fitting methods to the
distinct structures in the 2-D VTEC perturbation plots. In general, the
propagation parameters are observably longitudinally dependent. For example,
the propagation direction is almost due southward between 105 and 115∘ E, while it is slightly southwest and southeast in the western and eastern
sides of this region. This feature is probably related to the regional
geomagnetic declination. The mean values of the period, trough velocity
(Vt), crest velocity (Vc), and wavelength of the LSTIDs in the studied
longitudinal bands are 74.8±1.4 min, 578±16 m s−1,
617±23 m s−1, and 2691±80 km, respectively. Finally, using the
VTEC map data from the Madrigal database of the MIT Haystack Observatory,
the characteristics of the ionospheric disturbances over the European sector
(30–70∘ N, 10–20∘ E) are also
studied. The results are very different from those in the eastern Asian sector
in parameters like the occurrence time, oscillation period, and propagation
velocities.
Re-examining Firm Size and Corporate Social Responsibility: The Visibility Approach
Authors: Karyawati P Golrida , Muliani Mira , Joshi Prem Lal 
Published: August 2019

In a previous study on the firm size and corporate social responsibility (CSR) participation conducted by Golrida, et al (2017), different result is reported with Udayasankar’s hypothesis (2008) which states a U-shape relationship of firm size and CSR participation. However, it is arqued that Udayasankar hyppothesis is better applicable in developed countries, while in developing countries an inverted - U shape relationship is found. But, Golrida et al (2017) can only prove the form of relationship using two perspectives stated by Udayasankar, which are operating scale and resourcess access. The proxy of visibility could not capture the inverted U shape relationship due to measurement problem in the previous study. This study aims at re-examining the relationship between firm size and CSR participation from the visibility perpective by employing two proxies of visibility, which are analyst coverage and news coverage respectively. Indonesian companies are chosen to capture the context of developing country. Content analysis is done in obtaining CSR data of 433 companies listed on Indonesian Stock Exchange on 2012, while the data of visibility proxies are extracted from Thomson Reuters and selected news portal namely, Detik.com. The result of study shows that both visibility proxies, which are Analysts Coverage and Media Coverage form inverted U- shape relationship with CSR participation. The findings in this study contribute to the literature that, the form of firm size and CSR participation relationship in the context of developing countries is different than those in developed countries.
Antigone sous les soleils d’Afrique : trois exemples d’adaptation
Authors: Lacirignola Donato 
Published: August 2019

L’article propose une analyse de la relation entre la tragédie grecque et la littérature africaine en se basant sur trois réécritures du mythe d’Antigone publiées au XXe siècle : The Island d’Athol Fugard, John Kani et Winston Ntshona, Noces posthumes de Santigone de Sylvain Bemba, Tegonni : An African Antigone de Femi Osofisan. Après une réflexion concernant la présence des classiques grecs en Afrique et une introduction au cadre théorique des classical reception studies et aux modèles interprétatifs élaborés par les spécialistes tels que Kevin Wetmore (Black Dionysus), Barbara Goff et Michael Simpson (Black Aegean), nous montrons comment les dramaturges africains refaçonnent la tragédie grecque en la dégageant du contexte occidental. Nous mettons donc en évidence la manière dont, d’un point de vue à la fois thématique et dramatique, les réécritures africaines d’Antigone s’appuient sur la figure de l’héroïne pour décrire la situation socio-politique et culturelle de leur référence. L’universalité du mythe d’Antigone est ainsi simultanément mise en cause et confirmée par le recours au métathéâtre, de sorte que la tragédie grecque se débarrasse du filtre eurocentrique.
Editorial. Design and Cultural Diversity
Authors: Skjerven Astrid 
Published: August 2019

By raising the theme of Design and Cultural Diversity in this special issue of FormAkademisk we hope to stimulate a broad cross disciplinary discussion on the interplay of cultures within the field of design and design education. The main dimensions of the topic might be summarized as:
- The dimensions and meanings of cultural diversity- Politics and power- Transmission and transition of cultures- Heritage and innovation- Indigenous and vernacular traditions versus fashion and euro-centered attitudes- Design and learning approaches
These matters are complex, deeply interwoven and interdependent. This series of articles discusses how design might support an innovative development that takes care of diverse traditions and attitudes, supports equality and peaceful co-existence.
Leder. Finansiell støtte til FormAkademisk
Authors: Reitan Janne Beate 
Published: August 2019

FormAkademisk sender i disse dager ut brev om finansiell støtte for de kommende årene til institusjoner som i stor grad bruker tidsskriftet som publiseringskanal.
FormAkademisk er det eneste vitenskapelige tidsskriftet i Norden som publiserer artikler innen alle de fagområder som Profesjonsråd for designutdanning og Profesjonsråd for arkitektur- og landskapsarkitekturutdanning i Universitets- og høgskolerådet (UHR) dekker. I tillegg publiserer FormAkademisk artikler innen designdidaktikk fra barnehage til doktorgrad. Profesjonsråd for designutdanning sin støtte, som ble vedtatt på deres møte 13.oktober 2008 var svært viktig under etableringen av tidsskriftet og i prosessen mot vitenskapelig godkjenning på nivå 1 i 2008 og når tidsskriftet nå feirer sitt 10-års jubileum er støtten minst like viktig. FormAkademisk er også blitt nominert av Profesjonsråd for designutdanning til nivå 2 i Norsk vitenskapsindeks (NVI).