bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pelestarian Nilai-Nilai Civic Culture dalam Memperkuat Identitas Budaya Masyarakat: Makna Simbolik Ulos dalam Pelaksanaan Perkawinan Masyarakat Batak Toba di Sitorang
Authors: Panjaitan Lopiana Margaretha , Sundawa Dadang 
Published: March 2017

Penelitian ini bertujuan untuk memahami pelestarian nilai-nilai civic culture dalam memperkuat identitas budaya masyarakat Batak Toba melalui makna simbolik ulos dalam pelaksanaan upacara perkawinan. Fokus penelitian ini adalah upaya yang dilakukan oleh masyarakat dalam melestarikan nilai-nilai civic culture, dan mengapa masyarakat Batak Toba perlu untuk melestarikan nilai-nilai civic culture tersebut. Desain penelitian yang digunakan adalah kualitatif dengan metode studi kasus. Teknik pengumpulan data dilakukan dengan wawancara, observasi, dokumentasi, dan partisipasi langsung. Hasil penelitian menunjukkan bahwa: (1) ulos tidak bisa lepas dari kehidupann orang Batak Toba karena merupakan warisan nenek moyang sejak dahulu kala, ulos juga sebagai simbol kasih sayang di antara keluarga, yaitu antara orang tua dan anak, dan juga antar sesama anggota masyarakat; (2) upaya yang dilakukan oleh masyarakat dan pemerintah dalam melestarikan nilai-nilai civic culture tersebut adalah dengan cara memberikan pemahaman dan penjelasan kepada generasi muda dan membangun sebuah cagar budaya; (3) alasan mengapa masyarakat Batak Toba perlu melestarikan nilai-nilai civic culture tersebut adalah agar warisan nenek moyang tetap terjaga karena di dalam makna simbolik ulos tersebut terdapat nilai-nilai luhur Pancasila, seperti nilai ketuhanan, kemanusiaan, persatuan, kerakyatan, dan keadilan. Preservation of The Value of Civic Culture in Strengthening The Cultural Identity of The Community: Case Study on The Symbolic Meaning of Marriage of Ulos in The Implementation of Batak Toba Society in Sitorang). This reseach aims to understand the preservation the value of civic culture in strengthening the cultural identity of Batak Toba society through the symbolic meaning of ulos in the implementation of the marriage. This research focuses to have the efforts made by the community in preserving the value of civic culture, and to find out why the people of Batak Toba need to preserve the value of the civic culture. The study uses a qualitative case study method. The techniques of data collection are done through interviews, observation, documentation, and direct participation. The reseach results show that: (1) Ulos is not separated from the life of Batak Toba, because it is a heritage since a very long time ago, ulos is also as a symbol of affection among family,between parents and children, as well as among members of society; (2) The effort made by the public and the government in prevising the value of the civic culture is to provide an understanding and explanation to the younger generation and build a cultural heritage; (3) Reasons why people of Batak Toba need to preserve the value of the civic culture is that the heritage is maintained, because the noble values of Pancasila can be found in the symbolic meanings of ulos, as the value of divinity, humanity, unity, democracy, and justice.
A supplementary grading scale combining lesion-to-eloquence distance for predicting surgical outcomes of patients with brain arteriovenous malformations
Authors: Jiao Yuming , Lin Fuxin , Wu Jun , Li Hao , Wang Lijun , Jin Zhen , Wang Shuo , Cao Yong 
Published: March 2017

OBJECTIVECase selection for the surgical treatment of brain arteriovenous malformations (BAVMs) remains challenging. This study aimed to construct a predictive grading system combining lesion-to-eloquence distance (LED) for selecting patients with BAVMs for surgery.METHODSBetween September 2012 and September 2015, the authors retrospectively studied 201 consecutive patients with BAVMs. All patients had undergone preoperative functional MRI and diffusion tensor imaging (DTI), followed by resection. Both angioarchitectural factors and LED were analyzed with respect to the change between preoperative and final postoperative modified Rankin Scale (mRS) scores. LED refers to the distance between the lesion and the nearest eloquent area (eloquent cortex or eloquent fiber tracts) measured on preoperative fMRI and DTI. Based on logistic regression analysis, the authors constructed 3 new grading systems. The HDVL grading system includes the independent predictors of mRS change (hemorrhagic presentation, diffuseness, deep venous drainage, and LED). Full Score combines the variables in the Spetzler-Martin (S-M) grading system (nidus size, eloquence of adjacent brain, and venous drainage) and the HDVL. For the third grading system, the fS-M grading system, the authors added information regarding eloquent fiber tracts to the S-M grading system. The area under the receiver operating characteristic (ROC) curves was compared with those of the S-M grading system and the supplementary S-M grading system of Lawton et al.RESULTSLED was significantly correlated with a change in mRS score (p < 0.001). An LED of 4.95 mm was the cutoff point for the worsened mRS score. Hemorrhagic presentation, diffuseness, deep venous drainage, and LED were independent predictors of a change in mRS score. Predictive accuracy was highest for the HDVL grading system (area under the ROC curve 0.82), followed by the Full Score grading system (0.80), the fS-M grading system (0.79), the supplementary S-M grading system (0.76), and least for the S-M grading system (0.71). Predictive accuracy of the HDVL grading system was significantly better than that of the Spetzler-Martin grade (p = 0.040).CONCLUSIONSLED was a significant predictor for the preoperative risk evaluation for surgery. The HDVL system was a good predictor of neurological outcomes after BAVM surgery. Adding the consideration of the involvement of eloquent fiber tracts to preoperative evaluation can effectively improve its predictive accuracy.
Digital subtraction myelography in the investigation of post–dural puncture headache in 27 patients: technical note
Authors: Schievink Wouter I. , Maya M. Marcel , Moser Franklin G. 
Published: March 2017

OBJECTIVEPost–dural puncture headaches are common, and the treatment of such headaches can be complex when they become chronic. Among patients with spontaneous spinal CSF leaks, digital subtraction myelography (DSM) can localize the exact site of the leak when an extradural CSF collection is present, and it can also demonstrate CSF-venous fistulas in those without an extradural CSF collection. The authors now report on the use of DSM in the management of patients with chronic post–dural puncture headaches.METHODSThe patient population consisted of a consecutive group of 27 patients with recalcitrant post–dural puncture headache that had lasted from 2 to 150 months (mean 26 months).RESULTSThe mean age of the 17 women and 10 men was 39.1 years (range 18–77 years). An extensive extradural CSF collection was present in 5 of the 27 patients, and DSM was able to localize the exact site of the dural defect in all 5 patients. Among the 22 patients who did not have an extradural CSF collection, DSM showed a CSF-venous fistula in 1 patient (5%). Three other patients had a small pseudomeningocele at the level of the dural puncture. Percutaneous glue injection or microsurgical repair resulted in resolution of symptoms in 8 of the 9 patients in whom an abnormality had been identified on imaging.CONCLUSIONSDigital subtraction myelography is able to precisely localize the dural puncture site in patients with a post–dural puncture headache and an extensive extradural CSF collection, and it may rarely detect a CSF-venous fistula in such patients without an extradural CSF collection.
Spinal column shortening for tethered cord syndrome associated with myelomeningocele, lumbosacral lipoma, and lipomyelomeningocele in children and young adults
Authors: Aldave Guillermo , Hansen Daniel , Hwang Steven W. , Moreno Amee , Briceño Valentina , Jea Andrew 
Published: March 2017

OBJECTIVETethered cord syndrome is the clinical manifestation of an abnormal stretch on the spinal cord, presumably causing mechanical injury, a compromised blood supply, and altered spinal cord metabolism. Tethered cord release is the standard treatment for tethered cord syndrome. However, direct untethering of the spinal cord carries potential risks, such as new neurological deficits from spinal cord injury, a CSF leak from opening the dura, and retethering of the spinal cord from normal scar formation after surgery. To avoid these risks, the authors applied spinal column shortening to children and transitional adults with primary and secondary tethered cord syndrome and report treatment outcomes. The authors' aim with this study was to determine the safety and efficacy of spinal column shortening for tethered cord syndrome by analyzing their experience with this surgical technique.METHODSThe authors retrospectively reviewed the demographic and procedural data of children and young adults who had undergone spinal column shortening for primary or secondary tethered cord syndrome.RESULTSSeven patients with tethered cord syndrome caused by myelomeningocele, lipomyelomeningocele, and transitional spinal lipoma were treated with spinal column shortening. One patient with less than 24 months of follow-up was excluded from further analysis. There were 3 males and 4 females; the average age at the time was surgery was 16 years (range 8–30 years). Clinical presentations for our patients included pain (in 5 patients), weakness (in 4 patients), and bowel/bladder dysfunction (in 4 patients). Spinal column osteotomy was most commonly performed at the L-1 level, with fusion between T-12 and L-2 using a pedicle screw-rod construct. Pedicle subtraction osteotomy was performed in 6 patients, and vertebral column resection was performed in 1 patient. The average follow-up period was 31 months (range 26–37 months). Computed tomography–based radiographic outcomes showed solid fusion and no instrumentation failure in all cases by the most recent follow-up. Five of 7 patients (71%) reported improvement in preoperative symptoms during the follow-up period. The mean differences in initial and most recent Scoliosis Research Society Outcomes Questionnaire and Oswestry Disability Index scores were 0.26 and –13%, respectively; minimum clinically important difference in SRS-22 and ODI were assumed to be 0.4% and –12.8%, respectively.CONCLUSIONSSpinal column shortening seems to represent a safe and efficacious alternative to traditional untethering of the spinal cord for tethered cord syndrome.
Gravitational waves and core-collapse supernovae
Authors: Bisnovatyi-Kogan G S , Moiseenko S G 
Published: March 2017

Abstract
A mechanism of formation of gravitational waves in the Universe is considered for a nonspherical collapse of matter. Nonspherical collapse results are presented for a uniform spheroid of dust and a finite-entropy spheroid. Numerical simulation results on core-collapse supernova explosions are presented for the neutrino and magneto-rotational models. These results are used to estimate the dimensionless amplitude of the gravitational wave with a frequency ν ~ 1300 Hz, radiated during the collapse of the rotating core of a pre-supernova with a mass of 1.2 M
⊙ (calculated by the authors in 2D). This estimate agrees well with many other calculations (presented in this paper) that have been done in 2D and 3D settings and which rely on more exact and sophisticated calculations of the gravitational wave amplitude. The formation of the large-scale structure of the Universe in the Zel’dovich pancake model involves the emission of very long-wavelength gravitational waves. The average amplitude of these waves is calculated from the simulation, in the uniform spheroid approximation, of the nonspherical collapse of noncollisional dust matter, which imitates dark matter. It is noted that a gravitational wave radiated during a core-collapse supernova explosion in our Galaxy has a sufficient amplitude to be detected by existing gravitational wave telescopes.
Integration of Hospital Information and Clinical Decision Support Systems to Enable the Reuse of Electronic Health Record Data
Authors: Kopanitsa Georgy 
Published: March 2017

SummaryBackground: The efficiency and acceptance of clinical decision support systems (CDSS) can increase if they reuse medical data captured during health care delivery. High heterogeneity of the existing legacy data formats has become the main barrier for the reuse of data. Thus, we need to apply data modeling mechanisms that provide standardization, transformation, accumulation and querying medical data to allow its reuse.Objectives: In this paper, we focus on the interoperability issues of the hospital information systems (HIS) and CDSS data integration.Materials and Methods: Our study is based on the approach proposed by Marcos et al. where archetypes are used as a standardized mechanism for the interaction of a CDSS with an electronic health record (EHR). We build an integration tool to enable CDSSs collect data from various institutions without a need for modifications in the implementation. The approach implies development of a conceptual level as a set of archetypes representing concepts required by a CDSS.Results: Treatment case data from Regional Clinical Hospital in Tomsk, Russia was extracted, transformed and loaded to the archetype database of a clinical decision support system. Test records’ normalization has been performed by defining transformation and aggregation rules between the EHR data and the archetypes. These mapping rules were used to automatically generate openEHR compliant data. After the transformation, archetype data instances were loaded into the CDSS archetype based data storage. The performance times showed acceptable performance for the extraction stage with a mean of 17.428 s per year (3436 case records). The transformation times were also acceptable with 136.954 s per year (0.039 s per one instance). The accuracy evaluation showed the correctness and applicability of the method for the wide range of HISes. These operations were performed without interrupting the HIS workflow to prevent the HISes from disturbing the service provision to the users.Conclusions: The project results have proven that archetype based technologies are mature enough to be applied in routine operations that require extraction, transformation, loading and querying medical data from heterogeneous EHR systems. Inference models in clinical research and CDSS can benefit from this by defining queries to a valid data set with known structure and constraints. The standard based nature of the archetype approach allows an easy integration of CDSSs with existing EHR systems.
Integral Field Spectroscopy of the Low-mass Companion HD 984 B with the Gemini Planet Imager
Authors: Johnson-Groh Mara , Marois Christian , De Rosa Robert J. , Nielsen Eric L. , Rameau Julien , Blunt Sarah , Vargas Jeffrey , Ammons S. Mark , Bailey Vanessa P. , Barman Travis S. , Bulger Joanna , Chilcote Jeffrey K. , Cotten Tara , Doyon René , Duchêne Gaspard , Fitzgerald Michael P. , Follette Kate B. , Goodsell Stephen , Graham James R. , Greenbaum Alexandra Z. , Hibon Pascale , Hung Li-Wei , Ingraham Patrick , Kalas Paul , Konopacky Quinn M. , Larkin James E. , Macintosh Bruce , Maire Jérôme , Marchis Franck , Marley Mark S. , Metchev Stanimir , Millar-Blanchaer Maxwell A. , Oppenheimer Rebecca , Palmer David W. , Patience Jenny , Perrin Marshall , Poyneer Lisa A. , Pueyo Laurent , Rajan Abhijith , Rantakyrö Fredrik T. , Savransky Dmitry , Schneider Adam C. , Sivaramakrishnan Anand , Song Inseok , Soummer Remi , Thomas Sandrine , Vega David , Wallace J. Kent , Wang Jason J. , Ward-Duong Kimberly , Wiktorowicz Sloane J. , Wolff Schuyler G. 
Published: March 2017

Abstract
We present new observations of the low-mass companion to HD 984 taken with the Gemini Planet Imager (GPI) as a part of the GPI Exoplanet Survey campaign. Images of HD 984 B were obtained in the J (1.12–1.3 μm) and H (1.50–1.80 μm) bands. Combined with archival epochs from 2012 and 2014, we fit the first orbit to the companion to find an 18 au (70-year) orbit with a 68% confidence interval between 14 and 28 au, an eccentricity of 0.18 with a 68% confidence interval between 0.05 and 0.47, and an inclination of 119° with a 68% confidence interval between 114° and 125°. To address the considerable spectral covariance in both spectra, we present a method of splitting the spectra into low and high frequencies to analyze the spectral structure at different spatial frequencies with the proper spectral noise correlation. Using the split spectra, we compare them to known spectral types using field brown dwarf and low-mass star spectra and find a best-fit match of a field gravity M6.5 ± 1.5 spectral type with a corresponding temperature of

K. Photometry of the companion yields a luminosity of

/

dex with DUSTY models. Mass estimates, again from DUSTY models, find an age-dependent mass of 34 ± 1 to 95 ± 4 M
Jup. These results are consistent with previous measurements of the object.
X-Ray and Optical Study of the Gamma-ray Source 3FGL J0838.8–2829: Identification of a Candidate Millisecond Pulsar Binary and an Asynchronous Polar
Authors: Halpern Jules P. , Bogdanov Slavko , Thorstensen John R. 
Published: March 2017

Abstract
We observed the field of the Fermi source 3FGL J0838.8−2829 in optical and X-rays, initially motivated by the cataclysmic variable (CV) 1RXS J083842.1−282723 that lies within its error circle. Several X-ray sources first classified as CVs have turned out to be γ-ray emitting millisecond pulsars (MSPs). We find that 1RXS J083842.1−282723 is in fact an unusual CV, a stream-fed asynchronous polar in which accretion switches between magnetic poles (that are ≈120° apart) when the accretion rate is at minimum. High-amplitude X-ray modulation at periods of 94.8 ± 0.4 minutes and 14.7 ± 1.2 hr are seen. The former appears to be the spin period, while the latter is inferred to be one-third of the beat period between the spin and the orbit, implying an orbital period of 98.3 ± 0.5 minutes. We also measure an optical emission-line spectroscopic period of 98.413 ± 0.004 minutes, which is consistent with the orbital period inferred from the X-rays. In any case, this system is unlikely to be the γ-ray source. Instead, we find a fainter variable X-ray and optical source, XMMU J083850.38−282756.8, that is modulated on a timescale of hours in addition to exhibiting occasional sharp flares. It resembles the black widow or redback pulsars that have been discovered as counterparts of Fermi sources, with the optical modulation due to heating of the photosphere of a low-mass companion star by, in this case, an as-yet undetected MSP. We propose XMMU J083850.38−282756.8 as the MSP counterpart of 3FGL J0838.8−2829.
General Model for Light Curves of Chromospherically Active Binary Stars∗
Authors: Jetsu L. , Henry G. W. , Lehtinen J. 
Published: March 2017

Abstract
The starspots on the surface of many chromospherically active binary stars concentrate on long-lived active longitudes separated by 180°. Shifts in activity between these two longitudes, the “flip-flop” events, have been observed in single stars like FK Comae and binary stars like σ Geminorum. Recently, interferometry has revealed that ellipticity may at least partly explain the flip-flop events in σ Geminorum. This idea was supported by the double-peaked shape of the long-term mean light curve of this star. Here we show that the long-term mean light curves of 14 chromospherically active binaries follow a general model that explains the connection between orbital motion, changes in starspot distribution, ellipticity, and flip-flop events. Surface differential rotation is probably weak in these stars, because the interference of two constant period waves may explain the observed light curve changes. These two constant periods are the active longitude period

and the orbital period

. We also show how to apply the same model to single stars, where only the value of P
act is known. Finally, we present a tentative interference hypothesis about the origin of magnetic fields in all spectral types of stars.
IC 630: Piercing the Veil of the Nuclear Gas
Authors: Durré Mark , Mould Jeremy , Schartmann Marc , Uddin Syed Ashraf , Cotter Garrett 
Published: March 2017

Abstract
IC 630 is a nearby early-type galaxy with a mass of

M
⊙ with an intense burst of recent (6 Myr) star formation (SF). It shows strong nebular emission lines, with radio and X-ray emission, which classifies it as an active galactic nucleus (AGN). With VLT-SINFONI and Gemini North-NIFS adaptive optics observations (plus supplementary ANU 2.3 m WiFeS optical IFU observations), the excitation diagnostics of the nebular emission species show no sign of standard AGN engine excitation; the stellar velocity dispersion also indicates that a supermassive black hole (if one is present) is small (

). The luminosity at all wavelengths is consistent with SF at a rate of about 1–2 M
⊙ yr−1. We measure gas outflows driven by SF at a rate of 0.18 M
⊙ yr−1 in a face-on truncated cone geometry. We also observe a nuclear cluster or disk and other clusters. Photoionization from young, hot stars is the main excitation mechanism for [Fe ii] and hydrogen, whereas shocks are responsible for the H2 excitation. Our observations are broadly comparable with simulations where a Toomre-unstable, self-gravitating gas disk triggers a burst of SF, peaking after about 30 Myr and possibly cycling with a period of about 200 Myr.
Time-dependent Models of Magnetospheric Accretion onto Young Stars
Authors: Robinson C. E. , Owen J. E. , Espaillat C. C. , Adams F. C. 
Published: March 2017

Abstract
Accretion onto Classical T Tauri stars is thought to take place through the action of magnetospheric processes, with gas in the inner disk being channeled onto the star’s surface by the stellar magnetic field lines. Young stars are known to accrete material in a time-variable manner, and the source of this variability remains an open problem, particularly on the shortest (∼day) timescales. Using one-dimensional time-dependent numerical simulations that follow the field line geometry, we find that for plausibly realistic young stars, steady-state transonic accretion occurs naturally in the absence of any other source of variability. However, we show that if the density in the inner disk varies smoothly in time with ∼day-long timescales (e.g., due to turbulence), this complication can lead to the development of shocks in the accretion column. These shocks propagate along the accretion column and ultimately hit the star, leading to rapid, large amplitude changes in the accretion rate. We argue that when these shocks hit the star, the observed time dependence will be a rapid increase in accretion luminosity, followed by a slower decline, and could be an explanation for some of the short-period variability observed in accreting young stars. Our one-dimensional approach bridges previous analytic work to more complicated multi-dimensional simulations and observations.