bluuebunny/crossref_metadata_2025_split huggingface dataset:
The period-gap cataclysmic variable CzeV404 Her: A link between SW Sex and SU UMa systems
Authors: Kára J. , Zharikov S. , Wolf M. , Kučáková H. , Cagaš P. , Medina Rodriguez A. L. , Mašek M. 
Published: July 2021

Context. We present a new study of the eclipsing cataclysmic variable CzeV404 Her (Porb = 0.098 d) that is located in the period gap.
Aims. This report determines the origin of the object and the system parameters and probes the accretion flow structure of the system.
Methods. We conducted simultaneous time-resolved photometric and spectroscopic observations of CzeV404 Her. We applied our light-curve modelling techniques and the Doppler tomography method to determine the system parameters and analyse the structure of the accretion disk.
Results. We found that the system has a massive white dwarf MWD = 1.00(2) M⊙, a mass ratio of q = 0.16, and a relatively hot secondary with an effective temperature T2 = 4100(50) K. The system inclination is i = 78.8°. The accretion disk spreads out to the tidal limitation radius and has an extended hot spot or line region. The hot spot or line is hotter than the remaining outer part of the disk in quiescence or in intermediate state, but does not stand out completely from the disk flux in (super)outbursts.
Conclusions. We claim that this object represents a link between two distinct classes of SU UMa-type and SW Sex-type cataclysmic variables. The accretion flow structure in the disk corresponds to the SW Sex systems, but the physical conditions inside the disk fit the behaviour of SU UMa-type objects.
Dysgnathiechirurgie digital – Operationsschablonen und patientenspezifische Implantate
Authors: Schramm Alexander , Pietzka Sebastian , Wilde Frank 
Published: July 2021

ZusammenfassungDie modernen Techniken des 3D-Druckverfahrens ermöglichen den Einsatz von Operationsschablonen und patientenspezifischen Implantaten. Basierend auf 3-dimensionalen Bilddatensätzen der Patienten (optische Scans, CT- oder DVT-Datensätzen) können komplexe bignathe Umstellungsoperationen sowie Kinnplastiken virtuell geplant und intraoperativ geführt umgesetzt werden. Durch die Verwendung CAD/CAM generierter Osteotomie- und Bohrschablonen und patientenspezifischer Osteosyntheseplatten besteht seit dem Jahr 2015 erstmals auch die Möglichkeit bei komplexen bignathen Operationen die Maxilla splintfrei in allen 3 Dimensionen planbar, präzise und reproduzierbar einzustellen. Die validierten Präzisionsdaten zu Planung und Endergebnis liegen signifikant unter denen der 2D-geplanten Operationen. Die Techniken der splintfreien Oberkieferpositionierung und schablonengeführten Kinnverlagerung ermöglichen erstmals und routinehaft die präzise Umsetzung des präoperativen Planes bei der Dysgnathieoperation, insbesondere im Ausbildungsbetrieb.
Individuelle Gewichtung der Parameter im Rahmen der kieferorthopädischen Ex/NonEx-Entscheidung
Authors: Paddenberg Eva , Klinke Rebecca , Proff Peter , Kirschneck Christian 
Published: July 2021

ZusammenfassungDer Zahnengstand gehört zu den häufigsten Malokklusionen, sodass die Kieferorthopädie täglich vielfach mit der Frage der Platzbeschaffung konfrontiert wird. Bei ausgeprägtem Platzmangel ist die Entscheidung einer Ex/Non-Extraktionstherapie zu treffen. Diese hängt von den individuellen morphologisch-anatomischen sowie funktionellen Gegebenheiten ab. Durch die Berücksichtigung einer Vielzahl einzelner Befundparameter soll eine größtmögliche Entscheidungssicherheit erzielt werden. Hinzu kommt die Analyse alternativer Möglichkeiten der Platzbeschaffung. Neben dem systematischen Algorithmus liegt ein besonderes Augenmerk auf der individuellen Gewichtung der Befundparameter, was letztendlich in hohem Maße die klinische Erfahrung fordert.
Tabakentwöhnung und Verordnung von ambulantem Lungensport im Rahmen der pneumologischen Rehabilitation in Deutschland
Authors: Hayden Markus C. , Limbach Matthias , Glöckl Rainer , Dewey Stefan , Rupp Alexander , Schultz Konrad 
Published: July 2021

Zusammenfassung
Ziel der Studie Diese Erhebung der Sektion 12 der DGP dient der Erfassung der Angebote der Tabakentwöhnung (TEW) und der Verordnung von Rehabilitationssport (Lungensport) als Reha-Nachsorge im Rahmen der pneumologischen Rehabilitation in Deutschland.
Methodik Es erfolgte eine postalische Befragung sämtlicher pneumologischer Rehabilitationskliniken in Deutschland. 67 Kliniken wurden kontaktiert, von denen 62 die Einschlusskriterien erfüllten und 62,9 % die Fragebögen zurücksandten.
Ergebnisse Alle Kliniken beurteilen Lungensport als effektive Maßnahme zur Reha-Nachsorge. Jeweils 56,4 % führen hierzu regelmäßig standardisierte Informationsveranstaltungen durch bzw. verteilen entsprechende Informationsbroschüren. 38,5 % der Einrichtungen bieten ambulante Lungensportgruppen an. Der Anteil der Rehabilitanden, die bei Entlassung eine Lungensport-Verordnung erhält, erstreckt sich über das gesamte Spektrum von 0–100 %. Nur jede vierte Klinik gab an, schon einmal von Kostenträgern nach den Ergebnissen der Trainingstherapie gefragt worden zu sein.Sämtliche Kliniken erheben den Rauchstatus der Patienten, zudem werden alle Raucher individuell über die Notwendigkeit einer Tabakabstinenz aufgeklärt. Der Anteil aktiver Raucher wurde auf 33 % geschätzt. In 69,2 % der Kliniken werden regelmäßig standardisierte Vorträge zur TEW durchgeführt, in 61,5 % regelmäßig verhaltenstherapeutische TEW-Gruppentherapien. Zusätzliche Angebote sind bedarfsweise psychologische Beratungen (89,7 %), routinemäßiges Angebot von Nikotinersatzpräparaten (61,5 %) bzw. Vareniclin (15,4 %). Eine Nachsorge wird nur von 10,3 % angeboten. Im Durchschnitt schätzten die Einrichtungen den Anteil an Rauchern, die während der Reha einen Rauchstopp erreichen können, auf 32 %. Seitens der Kostenträger wurde nur eine der Kliniken (2,6 %) schon einmal nach den Ergebnissen der TEW angefragt.
Schlussfolgerung Die vorliegende Untersuchung legt nahe, dass viele Rehabilitationskliniken bez. TEW und Verordnung von Lungensport schon einen guten Standard erreicht haben, zeigt aber auch bestehende Verbesserungspotenziale auf. Diese betreffen die Nachsorge bei der TEW sowie die noch nicht durchgängig etablierte Verordnung von Lungensport als Reha-Nachsorge.
Fertigungswege zur Herstellung einer Kieferorthopädischen Gaumennahterweiterungsapparatur – digitaler Workflow im Fokus
Authors: Bolkart Johannes , Spintzyk Sebastian , Mann Nils Kristian , Koos Bernd , Xepapadeas Alexander B. 
Published: July 2021

ZusammenfassungDurch die stetige Weiterentwicklung digitaler Fertigungswege stehen zahlreiche Möglichkeiten zur Herstellung kieferorthopädischer Apparaturen zur Verfügung. Digitalisierte Arbeitsprozesse sind heutzutage aus der Zahnmedizin nicht mehr wegzudenken.Unter Umgehung handwerklich-manueller Fehlerquellen offerieren die digitalen Systeme eine Steigerung der Qualität sowie Kosteneffizienz, bei gleichzeitig gesteigertem Patientenkomfort. Dabei ist die intraorale Datenerfassung von größter Wichtigkeit, da bereits hier die Weichen für den gesamten digitalen Workflow gestellt werden.Bei der anschließenden Fertigung kann prinzipiell zwischen additiven und subtraktiven Verfahren unterschieden werden. In diesem Artikel sollen die gängigen CAM-Methoden anhand der Herstellungsmöglichkeiten einer Gaumennahterweiterungsapparatur dargestellt und verglichen werden.Es konnte gezeigt werden, dass sich alle Fertigungsverfahren zur Herstellung einer Gaumennahterweiterungsapparatur eignen.
Lhermitte–Duclos Disease: Incidental Finding in Traumatic Cerebral Hemorrhage
Authors: Beniwal Hemant Kumar , Satish Thatikonda , Rao Gollapudi Prakash , Reddy Musali Siddartha , Manne Srikrishnaaditya 
Published: July 2021

AbstractLhermitte–Duclos disease, also known as dysplastic cerebellar gangliocytoma, is a rare hamartomatous tumor localized in cerebellum. An association with Cowden syndrome is observed in 50% of cases who present with symptoms of increased intracranial pressure and cerebellar ataxia. These patients have specific magnetic resonance imaging and histopathological findings. Surgical resection is the treatment of choice. Here, we report a case of a young female with traumatic frontal hemorrhage associated with Lhermitte–Duclos disease.
Influence of the Multiple Layers Application and the Heating of Silane on the Bond Strength between Lithium Disilicate Ceramics and Resinous Cement
Authors: Silva Uriel Paulo Coelho , Maia Andréa Peixoto , Silva Isaias Donizeti , Miranda Milton Edson , Brandt William Cunha 
Published: July 2021

Abstract
Objective This study aimed to evaluate the bond strength between lithium disilicate ceramic and resinous cement when silane (Prosil, FGM) was applied in different amounts of layers under heating or not.
Materials and Methods Sixty IPS E-max CAD ceramic (Ivoclar) was used. They were conditioned with 10% hydrofluoric acid for 20 seconds. The samples were distributed in six groups (n = 10): 1Sil, 1 layer of silane without heating; 1SilAq, 1 layer of silane with heating; 2Sil, 2 layers without heating; 2SilAq, 2 layers with heating; 3Sil, 3 layers without heating; and 3SilAq, 3 layers with heating. After each layer, a jet of cold air was applied for 20 seconds in groups 1Sil, 2Sil, 3Sil, and jet of hot air (50°C) in groups 1SilAq, 2SilAq, and 3SilAq. Subsequently, an adhesive layer was applied, and fourcylinders were made on the ceramic with a resin cement AllCemVeneer and photoactivated for 20 seconds. The samples were stored at 37°C for 24 hours and analyzed to the microshear test at EMIC.
Statistical Analysis Data were submitted to ANOVA and Tukey’s test (α = 0.05).
Results The results showed that there was no statistical interaction between the factors studied. The “heating” factor was not statistically significant; however, the “silane layers” factor showed differences between groups. The analysis of the results showed that the use of one (66%) or two layers (67%) of silane regardless of heating, produced higher values of bond strength, when compared with the group of three layers (62%).
Conclusion The use of silane with one or two layers provided a greater bond strength between lithium disilicate ceramic and resinous cement and that the heating did not influence the results.
Improved Medical Student Engagement with EHR Documentation following the 2018 Centers for Medicare and Medicaid Billing Changes
Authors: Stevens Lindsay A. , Pageler Natalie M. , Hahn Jin S. 
Published: July 2021

Abstract
Background Medical student note writing is an important part of the training process but has suffered in the electronic health record (EHR) era as a result of student notes being excluded from the billable encounter. The 2018 CMS billing changes allow for medical student notes to be used for billable services provided that physical presence requirements are met, and attending physicians satisfy performance requirements and verify documentation. This has the potential to improve medical student engagement and decrease physician documentation burden.
Methods Our institution implemented medical student notes as part of the billable encounter in August 2018 with support of our compliance department. Note characteristics including number, type, length, and time in note were analyzed before and after implementation. Rotating medical students were surveyed regarding their experience following implementation.
Results There was a statistically significant increase in the number of student-authored notes following implementation. Attending physicians' interactions with student notes greatly increased following the change (4% of student notes reviewed vs. 84% of student notes). Surveyed students reported that having their notes as part of the billable record made their notes more meaningful and enhanced their learning. The majority of surveyed students also agreed that they received more feedback following the change.
Conclusion Medical students are interested in writing notes for education and feedback. Inclusion of their notes as part of the billable record can facilitate their learning and increase their participation in the note writing process.
Cumulative Antimicrobial Susceptibility Data of Pseudomonas Aeruginosa Isolates from Cystic Fibrosis Patients: 4-Year Experience
Authors: Fidan Ebru , Alci Gamze , Koldaş Seda Sevilay , Karadag Bülent , Gökdemir Yasemin , Erdem Eralp Ela , Karahasan Yagcı Aysegül 
Published: July 2021

Abstract
Objective Pseudomonas aeruginosa is the most important cause of lung infection among cystic fibrosis (CF) patients, and to reduce the severity of the infection, facility-specific cumulative antibiograms could help clinicians in empirical treatment.
Methods Respiratory samples of CF patients between January 2015 and December 2018 were scanned through Laboratory Operating System retrospectively. Demographical data of patients, culture results, and antibiotic susceptibilities are recorded using Microsoft Excel 2010. Cumulative antibiogram data were obtained according to the CLSI M39A4 document.
Results The number of registered patients increased in 4 years from 154 to 253. The mean age of patients varied from 9 to 11.7 (range, 2–42). The ratio of patients with a positive culture for P. aeruginosa increased from 32 to 40%, and the mean patients' age decreased from 16.6 to 11.1 (p <0.05). A total number of 4,146 respiratory samples were analyzed. Sputum samples consisted of 42.5% (n: 1,767) of the samples with a 58.4% isolation rate of P. aeruginosa (n: 1,034). A notable increase of resistance was seen almost all antimicrobials tested by years. The ratio of multidrug-resistant (MDR) P. aeruginosa was 4.1, 10.2, 4.5, and 8.6% in 2015, 2016, 2017, and 2018.
Conclusion Antimicrobial resistance is a challenging problem in CF patients, and surveillance should be done regularly.
Efficiency and Safety of Patent Ductus Arteriosus Surgical Ligation in Extremely Low Birth Weight Infants Without Chest Tube Placement
Authors: Kourelis Georgios , Kanakis Meletios , Loukas Constantinos , Kakava Felicia , Kyriakoulis Konstantinos , Bobos Dimitrios , Apostolopoulou Sotiria , Rammos Spyridon , Giannopoulos Nikolaos 
Published: July 2021

AbstractPatent ductus arteriosus (PDA) has been associated with increased morbidity and mortality in preterm infants. Surgical ligation (SL) is generally performed in symptomatic infants when medical management is contraindicated or has failed. We retrospectively reviewed our institution's experience in surgical management of PDA for extremely low birth weight (ELBW) infants without chest tube placement assessing its efficiency and safety. We evaluated 17 consecutive ELBW infants undergoing SL for symptomatic PDA (January 2012–January 2018) with subsequent follow-up for 6 months postdischarge. Patients consisted of 9 (53%) females and 8 (47%) males. Mean gestational age (GA) at birth was 27.9 ± 2.1 weeks. Median values for surgical age (SA) from birth to operation was 10 days (interquartile range [IQR]: 8–12); PDA diameter 3.4 mm (IQR: 3.2–3.5); surgical weight (SW) 750 g (IQR: 680–850); and days of mechanical ventilation (DMV) as estimated by Kaplan–Meier curve 22 days (95% confidence interval: 14.2–29.8). We observed a statistically significant negative association between DMV and GA at birth (rho = − 0.587, p = 0.017), SA (rho = − 0.629, p = 0.009) and SW (rho = − 0.737, p = 0.001). One patient experienced left laryngeal nerve palsy confirmed by laryngoscopy. Otherwise, there were no adverse events to include surgical-related mortality, recurrence of PDA, or need for chest tube placement during follow-up. SL of PDA in ELBW infants without chest tube placement is both efficient and safe. Universal consensus recommendations for the management of PDA in ELBW neonates are needed. Further study is required regarding the use of the less invasive option of percutaneous PDA closure in ELBW infants.
Subdural Hygroma in an Infant with Marfan's Syndrome
Authors: Ballmann Lisa , Scholl-Bürgi Sabine , Karall Thomas , Odri Komazec Irena , Karall Daniela , Michel Miriam 
Published: July 2021

AbstractBased on a patient encounter in which genetically confirmed Marfan's syndrome (MFS) underlay a spontaneously resolving subdural hygroma (SDHy) diagnosed in infancy, we review the literature of MFS clinically manifest in early life (early-onset MFS [EOMFS]) and of differential diagnoses of SDHy and subdural hemorrhage (SDHe) at this age. We found that rare instances of SDHy in the infant are associated with EOMFS. The most likely triggers are minimal trauma in daily life or spontaneous intracranial hypotension. The differential diagnosis of etiologies of SDHy include abusive and nonabusive head trauma, followed by perinatal events and infections. Incidental SDHy and benign enlargement of the subarachnoid spaces must further be kept in mind. SDHy exceptionally also may accompany orphan diseases. Thus, in the infant, EOMFS should be considered as a cause of SDHe and/or SDHy. Even in the absence of congestive heart failure, the combination of respiratory distress syndrome, muscular hypotonia, and joint hyperflexibility signals EOMFS. If EOMFS is suspected, monitoring is indicated for development of SDHe and SDHy with or without macrocephaly. Close follow-up is mandatory.
Understanding perceptions of recovery from psychological distress in Sierra Leone through qualitative comparative analysis
Authors: Jailobaeva Kanykey , Horn Rebecca , Bah Abdulai Jawo , Loffreda Giulia , Ager Alastair 
Published: July 2021

AbstractQualitative comparative analysis (QCA) is a relatively new method that examines causal complexity. Its use in mental health research is nascent. In low-income and fragile settings, with weak mental health service provision, identifying pathways of recovery from psychological distress can inform the appropriate deployment of scarce community and public resources. This paper examines the use of QCA to identify predictors of recovery in Sierra Leone. Our study explored lay perceptions of the signs of recovery from psychological distress caused by such events as the loss of a family member, severe sickness, and loss of a relationship. The data drew upon 75 interviews with women and men, across four districts of Sierra Leone, who described the signs of recovery from psychological distress they have observed in one person known to them. The truth table generated through QCA software indicated two signs of recovery— work/study and healthy relations—to be the most prevalent across different combinations of predictive factors. Further analysis of the truth table and sub-set relations suggested that work/study and healthy relations frequently served as sufficient conditions for reported recovery from distress to occur. QCA provided a means to identify sufficient predictive factors for recovery from psychological distress to occur. The findings suggest that to enable recovery from psychological distress, support needs to be broad and bring together services that will enable individuals to improve their social and relational wellbeing. Responses to distress need to involve a wide range of community-based stakeholders who will help individuals to engage in constructive activity and strengthen relations with their family members, friends, and the broader community. QCA is potentially well-positioned to unpack complexity in mental health research.
Characterization of Agfa Structurix series D4 and D3sc x-ray films in the 0.7–4.6 keV energy range
Authors: Dutra E. C. , Cowan J. , Cunningham T. , Durand A. M. , Emig J. , Heeter R. F. , Knauer J. , Knight R. A. , Lara R. , Perry T. S. , Rodriguez Z. , Torres G. , Wallace M. S. 
Published: July 2021

X-ray films remain a key asset for high-resolution x-ray spectral imaging in high-energy-density experiments conducted at the National Ignition Facility (NIF). The soft x-ray Opacity Spectrometer (OpSpec) fielded at the NIF has an elliptically shaped crystal design that measures x rays in the 900–2100 eV range and currently uses an image plate as the detecting medium. However, Agfa D4 and D3sc x-ray films’ higher spatial resolution provides increased spectral resolution to the data over the IP-TR image plates, driving the desire for regular use of x-ray film as a detecting medium. The calibration of Agfa D4 x-ray film for use in the OpSpec is communicated here. These calibration efforts are vital to the accuracy of the NIF opacity measurements and are conducted in a previously un-studied x-ray energy range under a new film development protocol required by NIF. The absolute response of Agfa D4 x-ray film from 705 to 4620 eV has been measured using the Nevada National Security Site Manson x-ray source. A broader range of energies was selected to compare results with previously published data. The measurements were taken using selected anodes, filters, and applied voltages to produce well-defined energy lines.
“We have no Chinese classmates”
Authors: Liu Meng , Le Ha Phan 
Published: July 2021

Abstract
This paper draws on a small-scale qualitative study with international students enrolled in various English- and
Chinese-medium instruction programs in Chinese universities. It seeks to explore these students’ educational experiences and their
perceptions of China and China’s higher education. Our study provides ample evidence about the irrelevance of Chinese language in
the current policies and practices of Chinese universities regarding internationalization and international students. It also
counters earlier studies that show how deeply rooted the discourses of native speaker and native-speaking varieties of English are
in English-medium-instruction programs around the world. All in all, the paper makes theoretical and empirical contributions to
the emerging literature on international students’ education and academic experiences in China. Through accounts obtained from
international students of varied backgrounds, the paper also sheds light on nuances of internationalization, medium of
instruction, and academic mobilities.
The E’s of TNHE and EMI
Authors: Reynolds Dudley 
Published: July 2021

Abstract
Questions asked as part of phenomenographic research are used to critically synthesize findings from the case
studies in this issue of English-medium instruction (EMI) in transnational higher education (TNHE). With respect to whether EMI in
TNHE can be considered a phenomenon, it is suggested that the phenomenon is more discursive than empirical. Student and instructor
perceptions of the phenomenon reveal a critical awareness of the policies that structure the learning environment and agency that
takes advantage of the policies’ discursive nature to create alternative, multilingual language practices and improve learning. A
gap between policy and practice that allows for negotiation of the E’s in EMI and TNHE, English and education, is hence called
for.
Analog dual to a 2 + 1-dimensional holographic superconductor
Authors: Bilic Neven , Fabris Júlio C 
Published: July 2021

Abstract
We study an analog hydrodynamic model that mimics a 3 + 1 AdS planar BH spacetime dual to a 2 + 1-dimensional superconductor. We demonstrate that the AdS4 bulk and its holographic dual could be realized in nature in an analog gravity model based on fluid dynamics. In particular we mimic the metric of an O
2 holographic superconductor and calculate the entanglement entropy of a conveniently designed subsystem at the boundary of the analog AdS4 bulk.