bluuebunny/crossref_metadata_2025_split huggingface dataset:
HADES RV programme with HARPS-N at TNG
Authors: Maldonado J. , Micela G. , Baratella M. , D’Orazi V. , Affer L. , Biazzo K. , Lanza A. F. , Maggio A. , González Hernández J. I. , Perger M. , Pinamonti M. , Scandariato G. , Sozzetti A. , Locci D. , Di Maio C. , Bignamini A. , Claudi R. , Molinari E. , Rebolo R. , Ribas I. , Toledo-Padrón B. , Covino E. , Desidera S. , Herrero E. , Morales J. C. , Suárez-Mascareño A. , Pagano I. , Petralia A. , Piotto G. , Poretti E. 
Published: November 2020

Context. Most of our current knowledge on planet formation is still based on the analysis of main sequence, solar-type stars. Conversely, detailed chemical studies of large samples of M dwarfs hosting planets are still missing.
Aims. Correlations exist between the presence of different types of planets around FGK stars and metallicity, individual chemical abundance, and stellar mass. We aim to test whether or not these correlations still hold for the less-massive M dwarf stars. Methods to determine stellar abundances of M dwarfs from high-resolution optical spectra in a consistent way are still missing. The present work is a first attempt to fill this gap.
Methods. We analyse a large sample of M dwarfs with and without known planetary companions in a coherent and homogeneous way. We develop for the first time a methodology to determine stellar abundances of elements other than iron for M dwarf stars from high-resolution optical spectra. Our methodology is based on the use of a principal component analysis and sparse Bayesian methods. We made use of a set of M dwarfs orbiting around an FGK primary with known abundances to train our methods. We applied our methods to derive stellar metalliticies and abundances of a large sample of M dwarfs observed within the framework of current radial-velocity surveys. We then used a sample of nearby FGK stars to cross-validate our technique by comparing the derived abundance trends in the M dwarf sample with those found on the FGK stars.
Results. The metallicity distribution of the different subsamples reveals a correlation between the metallicities of M dwarfs and their probability of hosting giant planets. We also find a correlation between this latter probability and stellar mass. M dwarfs hosting low-mass planets do not seem to follow the so-called planet–metallicity correlation. We also find that the frequency of low-mass planets does not depend on the mass of the stellar host. These results appear to be in agreement with those of previous works. However, we note that for giant-planet hosts our metallicities predict a weaker planet–host metallicity correlation but a stronger mass-dependency than corresponding values derived from photometric results. We show for the first time that there seems to be no differences between M dwarfs with and without known planets in terms of their abundance distributions of elements different from iron.
Conclusions. Our data show that low-mass stars with planets follow the same metallicity, mass, and abundance trends as their FGK counterparts, which are usually explained within the framework of core-accretion models.
Stationsäquivalente Behandlung
Authors: Längle Gerhard , Raschmann Svenja , Holzke Martin 
Published: November 2020

ZUSAMMENFASSUNGIn Deutschland herrscht nach wie vor eine strikte Sektorisierung der Versorgungslandschaft. Aufsuchende Akutbehandlung war bislang nur in Modellvorhaben realisiert und nicht bundesweit umsetzbar. Mit dem Inkrafttreten des Gesetzes zur Weiterentwicklung der Versorgung und Vergütung für psychiatrische und psychosomatische Leistungen (PsychVVG) im Jahr 2017, wurde diese Versorgungslücke mit der Stationsäquivalenten Behandlung (StäB) als neuartige Form aufsuchender Akutbehandlung gefüllt. In diesem Beitrag werden die für StäB relevanten rechtlichen Grundlagen und die in der Selbstverwaltung getroffenen Vereinbarungen gebündelt. Bisher bekannte Modelle der Finanzierung werden vorgestellt und der Umgang mit StäB aus Sicht der Krankenhausplanung wird dargelegt. Auch in der Kinder- und Jugendpsychiatrie ergänzt die stationsäquivalente Behandlung die Landschaft psychiatrischer Versorgungsangebote, weshalb deren besondere Anforderungen an die Behandlung im Zuge der StäB gesondert aufgegriffen werden. Aus aktuellem Anlass nimmt der Beitrag Bezug auf die Erfahrungen mit StäB in Zeiten der SARS-CoV-2 Pandemie. StäB wurde während sozialer Kontaktsperren und Quarantäne- und Hygienemaßnahmen an den verschiedenen Zentren unterschiedlich ausgestaltet. Allen gemeinsam waren die erforderlichen Anpassungen an die Hygiene- und Abstandsregelungen, welche nochmals komprimiert dargestellt werden.
Determinanten des subjektiven Rehabilitationsbedürfnisses und der Antragsintention bei Personen mit Rückenschmerzen
Authors: Schmitt Nadine , Fauser David , Golla André , Zimmer Julia-Marie , Bethge Matthias , Mau Wilfried 
Published: November 2020

Zusammenfassung
Ziel der Studie Bisher wurden v. a. Einflussfaktoren der Antragstellung und Inanspruchnahme der medizinischen Rehabilitation wegen Rückenschmerzen untersucht. Potentielle Vorstufen der Leistungsbeantragung – Rehabilitationsbedürfnis und Antragsintention – waren bislang weniger Forschungsgegenstand im Kontext des Rehabilitationszugangs bei Rückenschmerzen. Die Studie untersucht deshalb die Häufigkeit und Determinanten dieser beiden Vorstufen.
Methodik Die Daten entstammen einer durch die Deutsche Forschungsgemeinschaft geförderten Kohortenstudie von 45 000 Versicherten der Deutschen Rentenversicherungen Nord und Mitteldeutschland. In die Analysen der Querschnittsdaten zum ersten Befragungszeitpunkt wurden 45- bis 59-jährige Personen mit Rückenschmerzen in den letzten 3 Monaten, ohne Erwerbsminderungsrente und ohne medizinische Rehabilitation in den letzten 4 Jahren eingeschlossen. Determinanten des Rehabilitationsbedürfnisses bzw. der Antragsintention wurden in multivariaten logistischen Regressionsanalysen untersucht.
Ergebnisse Von 6549 Personen mit Rückenschmerzen sahen sich 2348 (36%) als rehabilitationsbedürftig. Hiervon beabsichtigten 774 (33%) einen Antrag auf medizinische Rehabilitation innerhalb der nächsten 12 Monate zu stellen. Bei beiden Zielgrößen bestanden starke Zusammenhänge mit der sozialen Unterstützung durch nahestehende Personen. Das Rehabilitationsbedürfnis wurde zusätzlich durch Vorerfahrungen mit medizinischer Rehabilitation determiniert. Der zweitwichtigste Einflussfaktor auf die Antragsintention war die Unterstützung seitens Ärzt/innen und Therapeut/innen. Weitere Einflussfaktoren wirkten unterschiedlich auf beide Zielgrößen.
Schlussfolgerung Um den bedarfsgerechten Rehabilitationszugang zu verbessern, sollten bereits seine Vorstufen, das subjektive Rehabilitationsbedürfnis und die Antragsintention, mit ihren z. T. unterschiedlichen Determinanten beachtet werden. Dabei ist die Unterstützung durch das private Umfeld sowie Ärzt/innen und Therapeut/innen von großer Bedeutung. Dies ist ein weiterer Hinweis darauf, dass die Information und Einbeziehung dieser Akteure wichtige Bausteine sind, um einen bedarfsgerechten Zugang zu gewährleisten.
Update Breast Cancer 2020 Part 3 – Early Breast Cancer
Authors: Huober Jens , Schneeweiss Andreas , Hartkopf Andreas D. , Müller Volkmar , Lux Michael P. , Janni Wolfgang , Ettl Johannes , Belleville Erik , Thill Marc , Fasching Peter A. , Kolberg Hans-Christian , Schulmeyer Carla E. , Welslau Manfred , Overkamp Friedrich , Tesch Hans , Fehm Tanja N. , Lüftner Diana , Schütz Florian , Wöckel Achim 
Published: November 2020

AbstractThe treatment of patients with early breast cancer has always been characterised by escalation by new therapies and de-escalation through identification of better treatment regimens or introduction of better tools to estimate prognosis. Efforts in some of these areas in the last few years have led to solid data. The results of the large studies of de-escalation through use of multi-gene tests are available, as are the results of some studies that investigated the new anti-HER2 substances T-DM1 and pertuzumab in the early treatment situation. Several large-scale studies examining the role of CDK4/6 inhibitors will soon be concluded so innovations can be anticipated in this area also. This review article will summarise and classify the results of the latest publications.
Not always eosinophilic esophagitis – intramural pseudodiverticulosis of the esophagus – a case report and literature review
Authors: Frieling Thomas , Kreysel Christian , Blank Michael , Mülle Dorothee , Euler Philipp , Melchior Ilka 
Published: November 2020

AbstractBackground Intramural pseudodiverticulosis of the esophagus (EIPD) is a rare disease leading to dysphagia, chest pain, and weight loss. The diagnosis is difficult, and the disease can be confounded with eosinophilic esophagitis (EoE). We present a patient with esophageal intramural pseudodiverticulosis and a literature review.Case report The 45-year-old white caucasian woman with a history of nicotine and alcohol abuse had progressive hoarseness and severe dysphagia for solid food. Esophagogastroduodenoscopy (EGD) showed proximal esophageal stenosis, thrush esophagitis, and mucosal alteration with trachealization suspicious of EoE. However, repeated bouginage EGD and barium swallow revealed typical signs of esophageal intramural pseudodiverticulosis (EIPD). The patient was treated successfully by bougingage, acid suppression, and antifungal therapy. The literature analysis revealed the characteristics of EIPD according to age, sex, risk factors, and therapy modalities.Conclusion The case report and the literature overview suggest that EIPD can be confounded with EoE.
Stability of Turoctocog Alfa, a Recombinant Factor VIII Product, during Continuous Infusion In Vitro
Authors: Takeyama Masahiro , Nøhr Anne Mette , Pollard Debra 
Published: November 2020

Abstract
Objective Turoctocog alfa is a recombinant factor VIII (rFVIII) for the prevention and treatment of bleeding in patients with hemophilia A, including those undergoing surgery and invasive medical procedures. This in vitro study evaluated the physical and chemical stability of turoctocog alfa during continuous infusion (CI) over 24 hours at 30°C.
Materials and Methods The study was performed at 30°C ( ± 2°C). A CI system with pump speed set at either 0.6 or 1.5 mL/h was used to evaluate the stability of three turoctocog alfa strengths (500, 1,000, and 3,000 IU), equating to doses of 1.1 to 16.1 IU/h per kilogram of body weight. The following parameters were evaluated at selected time points between 0 and 24 hours: appearance of solution, clarity, pH, potency, purity, content, total high molecular weight proteins (HMWPs), and oxidized rFVIII.
Results The mean potency of turoctocog alfa was maintained within the predefined acceptance criteria during CI for both pump speeds with all three strengths at 6, 12, or 24 hours (500 IU: ≥484 IU/vial; 1,000 IU: ≥1,014 IU/vial; and 3,000 IU: ≥3,029 IU/vial). Furthermore, the appearance of solution, clarity, pH, purity, content of turoctocog alfa, total HMWP, and oxidized forms were also within the predefined limits, and comparable to the reference samples (time = 0 hours) for the pump speeds and product strengths assessed.
Conclusion Physical and chemical stability of turoctocog alfa was maintained during CI over 24 hours. There was only minor degradation or changes in any of the parameters tested. Potency was within the prespecified acceptance limits throughout 24 hours of infusion. These findings confirm the suitability of turoctocog alfa for CI.
Outcomes of Delayed Sternal Closure in Paediatric Cardiac Surgical Patients–A Prospective Single Centre Study
Authors: Vaswani Prateek , Sahu Manoj Kumar , Bipin Challatil , Singh Sarvesh Pal , Rajashekar Palleti , Devagourou Velayoudam , Talwar Sachin 
Published: November 2020

Abstract
Background Delayed sternal closure (DSC) is being increasingly used as an interim support to help the dysfunctional heart in the road to recovery after complex pediatric cardiac surgeries. The purpose of this study was to assess the conduct of DSC at a tertiary care center.
Methods Between 2018 and 2019, 185 consecutive pediatric patients (below 12 years of age) underwent cardiac surgery at a tertiary care center. The incidence and causes of DSC were noted. The various pre, intra and postoperative factors till discharge or demise were noted and analyzed.
Results In this study, DSC was done in 63 patients (34.05%) with a median age and weight of 29 days (18–100 days) and 4 kg (2–12.3 kg), respectively. Transposition of great arteries (TGA) (41.27%) constituted the majority, followed by total anomalous pulmonary venous connection (TAPVC) (26.98%). Myocardial edema (49.21%) was the most common indication for DSC. Mean duration of open chest was 40.75 ± 18.58 hours. All-cause mortality was 19.05% (12/63). On multivariate analysis by logistic regression, the independent predictors of mortality were needed for preoperative mechanical ventilation (OR 42.82, 95% CI = 4.52–406.03, p < 0.001) and development of postoperative sepsis (OR 20.07, 95% CI = 2.12–189.80, p = 0.002).
Conclusions DSC is a safe and effective technique in the management of complex pediatric cardiac surgeries. It provides assistance to the severely dysfunctional myocardium soon after the surgery and helps in stabilization of hemodynamics with avoidance of postoperative mediastinal compression. Early sternal closure should be considered on the basis of cardiovascular function and/or resolution of primary indication for DSC.
14.12.3 Telluropyrylium and Benzotelluropyrylium Salts (Update 2020)
Authors: Tan Q. 
Published: November 2020

AbstractThis chapter is an update to the earlier Science of Synthesis contribution (Section 14.12) describing methods for the synthesis of telluropyrylium and benzotelluropyrylium salts. Recent interest in this area has mainly focused on the preparation of dyes containing telluropyrylium and dibenzotelluropyrylium units.
14.4.19 9H-Xanthen-9-ones (Update 2020)
Authors: Gao W.-C. , Tian J. 
Published: November 2020

AbstractThis chapter is an update to the earlier Science of Synthesis contribution (Section 14.4.10) describing methods for the synthesis of 9H-xanthen-9-ones. The methods come from the literature published in the period 2003–2019.
Newton’s Rings Demonstration
Authors: Kallard T. 
Published: November 2020

Newton’s rings provide the classic illustration of thin film interference of the Fizeau type.
If a shallow convex spherical surface is placed on an optical flat, a system of circular fringes is seen around the point of contact. These are Newton’s rings. The fringes (light or dark) are lines of constant separation between the surfaces. The spacing difference between two adjacent fringes is one-half wavelength of the illuminating light. Thus, the fringe pattern seen can be considered as a contour map of the space between the two surfaces. The ring system is also seen with transmitted light but with a much smaller contrast. These rings are exactly complementary to the reflected ring system.
Self-supported nickel sulfide derived from nickel foam for hydrogen evolution and oxygen evolution reaction: effect of crystal phase switching
Authors: Yang Wenshu , Wang Shuaishuai , Luo Wei , Li Longhua , Hao Jinhui , Shi Weidong 
Published: November 2020

Abstract
Designing and fabricating economically viable, high active and stable electrocatalysts play an important role for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Crystal phase is the crucial factor that governs the electrochemical property and electrocatalytic reaction pathways. Here, a one-step nickel foam derived sulfidation method was presented to synthesize self-supported NiS2 and Ni3S2. The crystal phase-dependent chemical properties related to electrocatalytic behavior were evaluated by a series of advanced characterization and density functional theory calculations. Overall, the self-supported Ni3S2 shows high electrochemical activity towards both HER and OER in alkaline conditions, which afford the current density of 10 mA cm−2 with overpotentials of 245 mV for OER and 123 mV for HER, respectively. When employed the self-supported Ni3S2 as the bifunctional electrocatalysts for overall water splitting, the entire device provides the current density of 10 mA cm−2 at 1.61 V. These results indicate that the electrocatalytic properties can be exert greater improved by controlling the crystal phase, offering the prospect for advanced materials design and development.
Electrically-active defects in reduced and hydrogenated rutile

TiO2
Authors: Bonkerud Julie , Zimmermann Christian , Herklotz Frank , Weiser Philip Michael , Seiffert Christoph , Verhoeven Espen Førdestrøm , Vines Lasse , Monakhov Eduard V 
Published: November 2020

Abstract
We report on electrically-active defects located between 0.054 and 0.69 eV below the conduction band edge in rutile

T
i

O

2

single crystals subjected to reducing and hydrogenating heat treatments. Deep-level transient spectroscopy measurements recorded on

T
i

O

2

samples subjected to different heat treatments are compared. In samples annealed in

H
2

gas, three defect levels are commonly observed. One of these levels,

E

192

, located 0.43 eV below the conduction band edge is tentatively assigned to a hydrogen-impurity complex. Two levels at 0.054 and 0.087 eV below the conduction band edge, which were present after all different heat treatments, are tentatively assigned as being related to O vacancies or Ti self-interstitials. Deep-level transient spectroscopy spectra of samples heat-treated in

N
2

display a larger number of defect levels and larger concentrations compared to samples heat-treated in

H
2

gas.

N
2

treatments are performed at considerably higher temperatures. Four energy levels located between 0.28 and 0.69 eV, induced by annealing in

N
2

, are tentatively attributed to O vacancy- or Ti interstitial-related complexes with impurities.
Silicon-based FMCW signal generators: A review
Authors: Deng Wei , Jia Haikun , Chi Baoyong 
Published: November 2020

Abstract
FMCW radars with high resolution necessities the generation of highly linear, low phase noise, and low spur chirp signals with large bandwidth and a short modulation period. This paper reviews recent research progress on silicon-based FMCW signal generators, identifies advances in architecture, fundamental design, performance analysis, and applications of the FMCW synthesizer.
A survey of active quasi-circulators
Authors: Tang Bingjun , Geng Li 
Published: November 2020

Abstract
With the development of multi-band wireless communication and the increasing data transmission rate, the circulator as an antenna interface must be able to work in multiple frequency bands and provides large bandwidth. It presents a high challenge to the design of circulators, especially the active quasi-circulators. In this survey, we review the representative active quasi-circulators and summarize three different techniques and the corresponding structures to show an incremental improvement of the isolation and bandwidth of the active quasi-circulators. In addition, we also compare the performance of several state-of-art active circulators, and analyze their advantages and disadvantages. Finally, we conclude the future trend of the active quasi-circulators.
A 12-bit 30-MS/s VCO-based SAR ADC with NOC-assisted multiple adaptive bypass windows
Authors: Pan Xiangxin , Zhou Xiong , Chang Sheng , Ding Zhaoming , Li Qiang 
Published: November 2020

Abstract
This paper proposes a technique that uses the number of oscillation cycles (NOC) of a VCO-based comparator to set multiple adaptive bypass windows in a 12-bit successive approximation register (SAR) analog-to-digital converter (ADC). The analysis of the number of bit cycles, power and static performance shows that three adaptive bypass windows reduce power consumption, and decrease DNL and have similar INL, compared with the SAR ADC without bypass windows. In addition, a 1-bit split-and-recombination redundancy technique and a general bypass logic digital error correction method are proposed to address the settling issues and optimize the size of the bypass window. This design is implemented in 40 nm CMOS technology. The conversion frequency of the ADC reaches up to 30 MS/s. The ADC achieves an SFDR of 85.35 dB and 11.12-bit ENOB with Nyquist input, consuming 380 μW, down from 427 μW without multiple adaptive bypass windows, at a 1.1 V supply, resulting in a figure of merit (FoM) of 5.69 fJ/conversion-step.
Fast-transient techniques for high-frequency DC–DC converters
Authors: Cheng Lin , Tang Kui , Ki Wang-Hung , Su Feng 
Published: November 2020

Abstract
A 30 MHz voltage-mode controlled buck converter with fast transient responses is presented. An improved differential difference amplifier (DDA)-based Type-III compensator is proposed to reduce the settling times of the converter during load transients, and to achieve near-optimal transient responses with simple PWM control only. Moreover, a hybrid scheme using a digital linear regulator with automatic transient detection and seamless loop transition is proposed to further improve the transient responses. By monitoring the output voltage of the compensator instead of the output voltage of the converter, the proposed hybrid scheme can reduce undershoot and overshoot effectively with good noise immunity and without interrupting the PWM loop. The converter was fabricated in a 0.13 μm standard CMOS process using 3.3 V devices. With an input voltage of 3.3 V, the measured peak efficiencies at the output voltages of 2.4, 1.8, and 1.2 V are 90.7%, 88%, and 83.6%, respectively. With a load step of 1.25 A and rise and fall times of 2 ns, the measured 1% settling times were 220 and 230 ns, with undershoot and overshoot with PWM control of 72 and 76 mV, respectively. They were further reduced to 36 and 38 mV by using the proposed hybrid scheme, and 1% settling times were also reduced to 125 ns.
III Workshop on Modeling and Simulation for Science and Engineering
Authors: Sandoval-Amador A , Dueñas-Ramírez L M , V-Niño E D 
Published: November 2020

The III Workshop on Modeling and Simulation for Science and Engineering (III WMSSE) is an academic event that aims to highlight the close links between basic sciences, especially mathematics, and their implementation in engineering. During the event, which will be held in the city of Armenia, Colombia, talks in areas such Mathematical Physics, Computational Science, Dynamic Systems Model, Mechatronic Systems, Chemical Physics, and Physical Chemistry, Education and Communication is presented; moreover, courses in metaheuristics, financial market analysis, and software management is offered.
List of Organizing Committee, National Scientific Committee, Sponsor Partners are available in the pdf.