bluuebunny/crossref_metadata_2025_split huggingface dataset:
Continuum of Care Following Sports-Related Concussion
Authors: Brown Jessica , Knollman-Porter Kelly 
Published: May 2020

PurposeAlthough guidelines have changed regarding federally mandated concussion practices since their inception, little is known regarding the implementation of such guidelines and the resultant continuum of care for youth athletes participating in recreational or organized sports who incur concussions. Furthermore, data regarding the role of speech-language pathologists in the historic postconcussion care are lacking. Therefore, the purpose of this retrospective study was to investigate the experiences of young adults with history of sports-related concussion as it related to injury reporting and received follow-up care.MethodParticipants included 13 young adults with history of at least one sports-related concussion across their life span. We implemented a mixed-methods design to collect both quantitative and qualitative information through structured interviews. Participants reported experiencing 42 concussions across the life span—26 subsequent to sports injuries.ResultsTwenty-three concussions were reported to a parent or medical professional, 14 resulted in a formal diagnosis, and participants received initial medical care for only 10 of the incidents and treatment or services on only two occasions. Participants reported concussions to an athletic trainer least frequently and to parents most frequently. Participants commented that previous experience with concussion reduced the need for seeking treatment or that they were unaware treatments or supports existed postconcussion. Only one concussion incident resulted in the care from a speech-language pathologist.ConclusionThe results of the study reported herein shed light on the fidelity of sports-related concussion care management across time. Subsequently, we suggest guidelines related to continuum of care from injury to individualized therapy.
On the formation of hydrogen-deficient low-mass white dwarfs
Authors: Battich Tiara , Althaus Leandro G. , Córsico Alejandro H. 
Published: May 2020

Context. Two of the possible channels for the formation of low-mass (M⋆ ≲ 0.5 M⊙) hydrogen-deficient white dwarfs are the occurrence of a very-late thermal pulse after the asymptotic giant-branch phase or a late helium-flash onset in an almost stripped core of a red giant star.
Aims. We aim to asses the potential of asteroseismology to distinguish between the hot flasher and the very-late thermal pulse scenarios for the formation of low-mass hydrogen-deficient white dwarfs.
Methods. We computed the evolution of low-mass hydrogen-deficient white dwarfs from the zero-age main sequence in the context of the two evolutionary scenarios. We explore the pulsation properties of the resulting models for effective temperatures characterizing the instability strip of pulsating helium-rich white dwarfs.
Results. We find that there are significant differences in the periods and in the period spacings associated with low radial-order (k ≲ 10) gravity modes for white-dwarf models evolving within the instability strip of the hydrogen-deficient white dwarfs.
Conclusions. The measurement of the period spacings for pulsation modes with periods shorter than ∼500 s may be used to distinguish between the two scenarios. Moreover, period-to-period asteroseismic fits of low-mass pulsating hydrogen-deficient white dwarfs can help to determine their evolutionary history.
The Fornax Deep Survey with VST
Authors: Spavone M. , Iodice E. , van de Ven G. , Falcón-Barroso J. , Raj M. A. , Hilker M. , Peletier R. P. , Capaccioli M. , Mieske S. , Venhola A. , Napolitano N. R. , Cantiello M. , Paolillo M. , Schipani P. 
Published: May 2020

Context. This work is based on deep multi-band (g, r, i) data from the Fornax Deep Survey with the VLT Survey Telescope (VST). We analyse the surface brightness profiles of the 19 bright early-type galaxies (ETGs; mB ≤ 15 mag) inside the virial radius of the Fornax cluster (Rvir ∼ 0.7 Mpc), in the mass range 8 × 108 ≤ M* ≤ 1.2 × 1011 M⊙.
Aims. The main aim of this work is to identify signatures of accretion onto galaxies by studying the presence of outer stellar haloes and to understand their nature and occurrence. Our analysis also provides a new and accurate estimate of the intra-cluster light inside the virial radius of Fornax.
Methods. We performed multi-component fits to the azimuthally averaged surface brightness profiles available for all sample galaxies. This allows us to quantify the relative weight of all components in the galaxy structure that contribute to the total light. In addition, we derived the average g − i colours in each component identified by the fit, as well as the azimuthally averaged g − i colour profiles, to correlate them with the stellar mass of each galaxy and the location inside the cluster.
Results. We find that in the most massive (1010 ≤ M ≤ 1011 M⊙) and reddest ETGs the fraction of light in, probably accreted, haloes (50%–90%) is much larger than in the other galaxies. All of these are located in the high-density region of the cluster (≤0.4Rvir ∼ 0.3 Mpc), belonging to the north-south clump (NS clump). Less massive galaxies (109 ≤ M ≤ 1010 M⊙) have an accreted mass fraction that is lower than 30%, have bluer colours, and reside in the low-density regions of the cluster. The colour profiles of the ETGs with the largest accreted mass fraction tend to flatten in the outskirts of the galaxy, that is beyond the transition radius from the central in situ to the ex situ accreted component. Inside the virial radius of the cluster (∼0.7 Mpc), the total luminosity of the intra-cluster light, compared with the total luminosity of all cluster members (bright galaxies and dwarfs), is about 34%.
Conclusions. Inside the Fornax cluster there is a clear correlation between the amount of accreted material in the stellar haloes of galaxies and the density of the environment in which those galaxies reside. By comparing this quantity with theoretical predictions and previous observational estimates, there is a clear indication that the driving factor for the accretion process is the total stellar mass of the galaxy, which agrees with the hierarchical accretion scenario. Massive galaxies in the NS clump, with the largest accreted mass fractions, went through pre-processing in a group environment before this group merged with the main cluster early on. At the present epoch of the Fornax assembly history, these galaxies are the major contribution to the stellar density in the core of the cluster.
Long-term performance of oxidized zirconium on conventional and highly cross-linked polyethylene in total hip arthroplasty
Authors: Carli Alberto V. , Patel Anay R. , Cross Michael B. , Mayman David J. , Carroll Kaitlin M. , Pellicci Paul M. , Jerabek Seth A. 
Published: May 2020

Introduction: Polyethylene wear and subsequent osteolysis remain obstacles to the long-term survivorship of total hip arthroplasty (THA). Highly cross-linked polyethylene (XLPE) with radical quenching represents a massive leap forward with dramatically improved wear rates compared to ultra-high molecular weight polyethylene (UHMWPE). In this study we evaluate the wear of UHMWPE and XLPE coupled with oxidized zirconium (OxZr) femoral heads. Methods: A longitudinal, retrospective analysis was performed identifying consecutive patients who received a 28-mm OxZr-on-polyethylene primary THA from 2003 to 2004 by a single, high-volume arthroplasty surgeon. Patients were divided into two groups: those that received (1) UHMWPE liner and (2) a highly XLPE liner. Patients were included if clinical follow-up was complete to 2014 or later. Radiographic analysis was performed by two blinded observers. Measures included cup position, annual linear wear rate, and presence of osteolysis. Pairwise comparisons, correlations, and inter-rater reliability were calculated. Results: Eighty patients were in the UHMWPE group with an average follow-up of 10 ± 1.23 years and 88 patients in the XLPE group with an average of 10 ± 1.03-year follow-up. Average age (68) was similar between groups (p = 0.288). Observer reliability was excellent for cup abduction (ICC = 0.940), anteversion (ICC = 0.942), and detection of osteolysis (ICC = 0.811). Annual linear wear rates were significantly higher (p = 1 × 10−19) with UHMWPE (0.21 ± 0.12 mm/year) compared to XLPE (0.05 ± 0.03 mm/year). Linear wear rate was significantly correlated to decreasing acetabular abduction (p = 0.035). Osteolysis was noted only in the UHMWPE group, with 17 patients (21.2%) exhibiting acetabular osteolysis and 37 (46.3%) patients exhibiting femoral osteolysis. Conclusions: OxZr coupled with XLPE showed minimal wear and no osteolysis at 10-year follow up. The yearly linear penetration rate is similar to that seen in other studies of XLPE THA. A careful longitudinal follow-up will be required to determine if advanced bearings such as OxZr or ceramic can show improved performance in the second decade of implantation.
Association between the side of levator Ani muscle trauma and fetal
position at birth – a prospective observational study
Authors: Kimmich Nina , Birri Jana , Zimmermann Roland , Kreft Martina 
Published: May 2020

Abstract
Introduction Trauma of the levator ani muscle (LAM) is common after
vaginal birth and can most reliably be diagnosed by 3-dimensional (3D)
translabial ultrasound (TLUS). Multiple risk factors are known in general, but
not in association to a specific side of the body. Therefore, our aim was to
evaluate different impact factors which cause LAM trauma on either side of the
body or bilateral by focusing on the fetal position at birth.
Material and Methods As part of a prospective cohort study between
3/2017 and 4/2019, we analyzed vaginal births of nulliparous
women with singletons in vertex presentation≥36+0 gestational
weeks. We evaluated their pelvic floor for hematomas, partial and complete LAM
avulsions by 3D TLUS 2–4 days postpartum and searched for an association
between the affected body side and different fetal, maternal and obstetrical
factors.
Results 71 out of 213 women (33.3%) suffered from LAM trauma
– 17 (23.9%) on the right side, 20 (28.2%) on the left
side and 34 (47.9%) bilateral. No association between the different
evaluated factors and the affected body side could be identified, except for the
quality of fetal heart rate tracing.
Conclusions No significant impact factors of LAM trauma could be
associated with a specific side of the body. Other possible mechanisms need
investigation in the future, such as the time of the birth canal and the fetus
to adapt to each other, including adequate time for the tissue to stretch and
the fetus to rotate into the ideal position within the LAM hiatus.
Entfernen eines unbeschichteten Metallstents aus den Gallenwegen 6 Jahre nach Implantation bei chronisch kalzifizierender Pankreatitis
Authors: Hentschel Florian , Lüth Stefan 
Published: May 2020

ZusammenfassungStandard in der Therapie benigner Stenosen der Gallenwege sind beschichtete Metallstents oder das Multistenting mit Plastikstents. Unbeschichtete Metallstents werden nicht empfohlen, da sie bei längerer Liegezeit einwachsen und es bisher als unmöglich galt, sie mit vertretbarem Risiko zu entfernen.Wir berichten von einer Patientin mit chronisch kalzifizierender Pankreatitis und Cholestase, die nach frustranem Multistenting mit insgesamt 15 Stentwechseln einen unbeschichteten Metallstent als Zweitlinientherapie in den Ductus hepatocholedochus implantiert bekam. Nachdem dieser Stent sechs Jahre lang gelegen hatte und in dieser Zeit insgesamt 19-mal per Ballondurchzug gereinigt werden musste, stellte sich die Indikation zur Entfernung.Ins Lumen des unbeschichteten Stents wurde ein 2 cm längerer, beschichteter Metallstent von gleichem Kaliber eingelegt. Dieser wurde 9 Monate vor Ort belassen und in dieser Zeit einmal gereinigt. Abschließend wurden beide Stents per ERCP zunächst teleskopartig auseinandergezogen, dann vorsichtig mit der Zange mobilisiert und schließlich komplett aus dem Gallengang entfernt. Die Patientin blieb im weiteren Verlauf beschwerdefrei und ohne Cholestase.Die Stent-in-Stent-Technik zum Entfernen unbeschichteter Stents wurde erstmals für den Ösophagus beschrieben. Unser Fall zeigt, dass sie auch in den Gallenwegen und auch nach längerer Liegezeit anwendbar ist.
Oil sector and CO2 emissions in Saudi Arabia: asymmetry analysis
Authors: Mahmood Haider , Alkhateeb Tarek Tawfik Yousef , Furqan Maham 
Published: May 2020

AbstractSaudi Arabia is an oil-abundant country, and gather a significant portion of its income from the oil sector. Owing to the country’s over-dependency on the oil sector, increasing greenhouse gas emissions due to economic growth have often been neglected. The present research aims to estimate the effects of non-oil income per capita, the oil sector income share, urbanisation, and gasoline price on the CO2 emissions per capita in Saudi Arabia throughout 1970–2014. We use the latest nonlinear cointegration technique to estimate the asymmetrical effects of the oil sector on CO2 emissions. We found a long-run relationship in our hypothesised model. We also found a positive impact of non-oil income and urbanisation on CO2 emissions per capita and a negative effect of gasoline price. Moreover, a positive asymmetrical impact of oil income share on CO2 emissions is observed. The increasing oil income share has a more significant positive impact on CO2 emissions than that of decreasing oil income share. Moreover, the effect of increasing oil income share is found greater than non-oil income, urbanisation, and gasoline price. It is suggested to use tight environmental policies while formulating economic growth and urbanisation policies. Further, the economy should cut down its dependency on the oil sector to ensure a cleaner environment.
“When I came to the US”
Authors: Wang Ping-Hsuan 
Published: May 2020

AbstractFrom a social constructionist perspective, this study examines three gay Indian immigrants’ coming-out narratives as the locus of the discursive construction of both one’s physical and social location within the changing context. It advocates reconceptualizing “coming out” as dynamic and situated in interaction. Also, it investigates the intersection and construction of identities by analyzing coming-out narratives in sociolinguistic interviews conducted in Washington, DC. Drawing on Bamberg’s three levels of positioning (1997), the analysis highlights how narrators bring about their identities as they contrast the social constructs in India, i.e., the absence of such concept, and in the US, e.g., the acceptance of homosexuality, by reenacting dialogue before and after migration. This study adds to positioning theory and contributes to the cross-cultural dimension of research on coming-out narratives. The qualitative analysis also provides a linguistic perspective that views narrating coming out as an interactive process for constructing intersected identities.
Interpreter and Aboriginal Liaison Officer identity construction and positioning
Authors: Karidakis Maria 
Published: May 2020

Abstract
This study employs small story theory (Bamberg, 2006; Bamberg & Georgakopoulou, 2008; Georgakopoulou,
2006, 2015, 2017) and narrative
positioning analysis (Bamberg & Georgakopoulou, 2008) to explore stories that are
told by interpreters of Aboriginal languages and Aboriginal Liaison Officers (ALOs) when they discuss how they do their work and
the challenges they face when interpreting for Aboriginal and Torres Strait Islander patients in hospital settings. Findings
indicate that the interpreters and ALOs draw on stories to contribute their understanding of complexities of interpreting for
Aboriginal patients and do so through the multiple, shifting positions they attribute to themselves as other social actors in the
stories they narrate. These positions are reinforced in the ongoing interaction but are also located across the dataset,
illustrating that capital-D discourses or master narratives are invoked to frame the role, skills and attributes
of the professionals in this study.
Amplitude-modulated continuous-wave radar in the terahertz range using lock-in phase measurement
Authors: Dobroiu Adrian , Wakasugi Ryotaka , Shirakawa Yusuke , Suzuki Safumi , Asada Masahiro 
Published: May 2020

Abstract
We present the principle and the experimental verification of a distance measurement method based on the propagation of terahertz waves. The method relies on modulating the amplitude of a resonant-tunneling-diode (RTD) oscillator used as terahertz-wave source and on measuring the phase of the detected wave by applying a quadrature mixing technique. The distance measurement is found to have a residual error as small as 0.063 mm (standard deviation), which is a record for an RTD-based terahertz-wave radar system. This is almost five times better than our previous record of 0.29 mm, when an oscilloscope was used for phase measurements; additionally, the quadrature mixing brings about numerous practical benefits, such as greatly reduced cost, size, weight, complexity, and power consumption.
Implementation of robust constraint inversion method on resistivity geoelectric data to study landslide precursors (case study : Sungai Lasi District and Gunung Talang Solok District, West Sumatra).
Authors: Akmam Akmam , Amir Harman , Putra Amali 
Published: May 2020

Abstract
Landslides are natural disasters that have a major impact on the environment and surrounding communities every year. Even so, the impact of landslides can be reduced if the precursors of landslides are known through research. However, There are not much research has addressed to study this issue thoroughly. Indeed, many methods are used to study landslide precursors, one of which is to study landslide precursors based on resistivity data of rocks that form slopes or hills where landslides tend to occur. The rock resistivity data can be obtained by the Geoelectric Resistivity method, but the resistivity data that obtained through this method is apparent resistivity. The actual rock resistivity and thickness of the rock structure can be interpreted based on apparent resistivity using the Robust Inversion method. Thus, the purpose of this study is to describe the rock structure (resistivity and thickness) which has the potential as a precursor for landslides in Solok Regency, West Sumatra. The results showed that there were 10 landslide precursor points in Sungai Lasi District and 6 landslide precursor points in Gunung Talang sub-district that had the potential for landslides.
Optimization of hydrophobic nanocomposite thin film from silica/polietilen
Authors: Fauzi Ahmad , Zonesya Putri Lathifa , Ratnawulan  
Published: May 2020

Abstract
An optimization of the hydrophobic nanocomposite thin film has been carried out. A thin layer of nanocomposites is synthesized from natural minerals, which are a mixture of silica and polyethylene. Synthesis was carried out using 5 hours spinning with High Energy Milling (HEM-E3D). Optimization is done through variations in the composition of silica minerals with polyethylene. Contact angle characterization was performed using the Nikon D5200 Camera. The results of this study are the optimum contact angle obtained in the composition of silica/polyethylene nanocomposites that is 0.2 gram/0.5 gram.
Fabrication of methacrylate polymer-based on the silica capillary modified with dimethylamine
Authors: Oktavia Budhi , Prasmi Kardi Robi 
Published: May 2020

Abstract
Capillary silica is reacted with the monomer through the externally polymerization process so that a capillary silica polymer will be formed. The formed silica polymer will be modified with dimethylamine as an anion exchange group. Modified silica polymers, their morphological form are characterized by SEM and to see the series of functional groups in polymerized silica polymers will be characterized using FTIR. This research begins with the activation of capillary silica to be used, namely capillary silica with an inner diameter of 0.32 mm. After obtaining the optimum conditions of capillary silica to be used, silica will be reacted with several monomers such as glycydil methacrylate (GMA), azobisisobutyronitrile (AIBN) as an initiator, ethylene dimethacrylate (EDMA) as a crosslinker and porogen 1,4 butanadiol, 1-propanol, and water, by comparison of certain compositions to create a capillary silica polymer. Capillary silica polymers that have been externally polymerized will be modified with dimethylamine (DMA) as an anion exchange group and will be applied as a stationary phase for nitrite and nitrate anion analysis.
Identification of magnetic mineral forming elements in peatland Alahan Panjang West Sumatra Indonesia, section DD REP B 693 using X-Ray Fluorescence
Authors: Ningsih Ella Destari , Putra Rizaldi , La Maisonneuve Caroline De , Phua Marcus , Eisele Steffan , Forni Francesca , Oalmann Jeffrey , Rifai Hamdi 
Published: May 2020

Abstract
The elemental composition in peatland samples has been measured using the XRF (X-Ray Fluorescence) instrument. Peat soil samples were taken using a peat core near the Lake Diatas Alahan Panjang. After the magnetic suceptibilty of the samples were measured using Bartington Magnetic Susceptibility with MS2C sensor the samples that had the highest value were subsequently selected for analysis of elemental composition. The given results of percentage of major composition, including Si (50,552%), Al (13,545%), Fe (12,23%), S (4,896%) and Mg (4,204%). The most magnetic element forming magnetic element was Fe that formed mineral such on hematite, magnetite, maghemite, ilmenite, greidite or geothite.
Using the Schlumberger configuration resistivity geoelectric method to analyze the characteristics of slip surface at Solok
Authors: Rahmani T R , Sari D P , Akmam A , Amir H , Putra A 
Published: May 2020

Abstract
Landslides are the frequent disaster in the wavy topography zone, such as Sungai Lasi Solok. Landslide disaster was difficult to predict. Based on these conditions, we need to do the research. The aims of the research were to find out the characteristic of landslide slip surface at Sungai Lasi Solok base on Geoelectric Data. Data were collected by Automatic Resistivity Multi-electrode using Resistivity Geoelectric Method with Schlumberger configuration. The interpretation of the Geoelectric data was used Two Dimensions Least-Square Inversion Method. Characteristics of the landslide such as were estimated by Trigonometry theory in order to get both the angle and the depth of landslide slip surface. The results of the research are both the angle and the depth of the slip surface is 40 degrees and 14 meters.
Seismic cycle before the main earthquake and the end of time after shocks in West Sumatra
Authors: Savitri F A , Syafriani S , Anggriani F 
Published: May 2020

Abstract
Indonesian archipelago is one of the areas that often experiences earthquakes, this is because Indonesia is located between four plates that move together. One area in Indonesia that is prone to earthquakes is West Sumatra, because West Sumatra is in the vicinity of the active zone. The earthquake that occurred in West Sumatra in the period 2000-2019 had the smallest magnitude of 4.5 SR and the largest magnitude was 7.6 SR. The earthquake in West Sumatra has a Mainshock-Aftershock seismic cycle, an earthquake that begins with a preliminary earthquake and is followed by aftershocks. The suitable method to estimate the end time of aftershocks in West Sumatra is the Utsu method.