bluuebunny/crossref_metadata_2025_split huggingface dataset:
SVEEEETIES: singular vector expansion to estimate Earth-like exoplanet temperatures from infrared emission spectra
Authors: Schreier F. , Städt S. , Wunderlich F. , Godolt M. , Grenfell J. L. 
Published: December 2019

Context.Detailed characterizations of exoplanets are clearly moving to the forefront of planetary science. Temperature is a key marker for understanding atmospheric physics and chemistry.Aims.We aim to retrieve temperatures of N2-O2dominated atmospheres from secondary eclipse spectroscopic observations of the thermal emission of Earth-like exoplanets orbiting G-, K-, and M-stars, using large-aperture future space telescopes.Methods.A line-by-line radiative transfer code was used to generate synthetic thermal infrared (TIR) observations. The atmospheric temperature is approximated by an expansion with the base vectors defined by a singular value decomposition of a matrix comprising representative profiles. A nonlinear least squares fitting was used to estimate the unknown expansion coefficients.Results.Analysis of the 4.3 and 15μm CO2bands in the TIR spectra permits the inference of temperatures even for low signal-to-noise ratios of 5 at medium resolution. Deviations from the true temperature in the upper troposphere and lower-to-mid stratosphere are usually in the range of a few Kelvin, with larger deviations in the upper atmosphere and, less often, in the lower troposphere. Although the performance of the two bands is equivalent in most cases, the longwave TIR is more favorable than the shortwave due to increased star-planet contrast. A high spectral resolution, as provided by theJames WebbSpace Telescope (JWST) instruments, is important for retaining sensitivity to the upper atmosphere. Furthermore, the selection of an appropriate set of base functions is also key.Conclusions.Temperature in the mid-atmosphere, relevant for understanding habitability, can be suitably characterized by infrared emission spectroscopy with a resolution of at least 1000 (ideally ≈2500). Obtaining the necessary signal-to-noise ratio will be challenging even for JWST, however, it could be feasible with future space missions, such as the Origins Space Telescope or the Large Interferometer for Exoplanets. In the meantime, a least squares fitting with an appropriate set of base functions is also applicable for other classes of planets.
Formation of COMs through CO hydrogenation on interstellar grains
Authors: Simons M. A. J. , Lamberts T. , Cuppen H. M. 
Published: December 2019

Context. Glycoaldehyde, ethylene glycol, and methyl formate are complex organic molecules that have been observed in dark molecular clouds. Because there is no efficient gas-phase route to produce these species, it is expected that a low-temperature surface route existst that does not require energetic processing. CO hydrogenation experiments at low temperatures showed that this is indeed the case. Glyoxal can form through recombination of two HCO radicals and is then further hydrogenated.
Aims. Here we aim to constrain the methyl formate, glycolaldehyde, and ethylene glycol formation on the surface of interstellar dust grains through this cold and dark formation route. We also probe the dependence of the grain mantle composition on the initial gas-phase composition and the dust temperature.
Methods. A full CO hydrogenation reaction network was built based on quantum chemical calculations for the rate constants and branching ratios. This network was used in combination with a microscopic kinetic Monte Carlo simulation to simulate ice chemistry, taking into account all positional information. After benchmarking the model against CO-hydrogenation experiments, simulations under molecular cloud conditions were performed.
Results. Glycoaldehyde, ethylene glycol, and methyl formate are formed in all interstellar conditions we studied, even at temperatures as low as 8 K. This is because the HCO + HCO reaction can occur when HCO radicals are formed close to each other and do not require to diffuse. Relatively low abundances of methyl formate are formed. The final COM abundances depend more on the H-to-CO ratio and less on temperature. Only above 16 K, where CO build-up is less efficient, does temperature start to play a role. Molecular hydrogen is predominantly formed through abstraction reactions on the surface. The most important reaction leading to methanol is H2CO + CH3O → HCO + CH3OH. Our simulations are in agreement with observed COM ratios for mantles that have been formed at low temperatures.
New chemical scheme for giant planet thermochemistry
Authors: Venot O. , Cavalié T. , Bounaceur R. , Tremblin P. , Brouillard L. , Lhoussaine Ben Brahim R. 
Published: December 2019

Context.Several chemical networks have been developed to study warm (exo)planetary atmospheres. The kinetics of the reactions related to the methanol chemistry included in these schemes have been questioned.Aims.The goal of this paper is to update the methanol chemistry for such chemical networks based on recent publications in the combustion literature. We also aim to study the consequences of this update on the atmospheric compositions of (exo)planetary atmospheres and brown dwarfs.Methods.We performed an extensive review of combustion experimental studies and revisited the sub-mechanism describing methanol combustion in a scheme published in 2012. The updated scheme involves 108 species linked by a total of 1906 reactions. We then applied our 1D kinetic model with this new scheme to the case studies HD 209458b, HD 189733b, GJ 436b, GJ 1214b, ULAS J1335+11, Uranus, and Neptune; we compared these results with those obtained with the former scheme.Results.The update of the scheme has a negligible impact on the atmospheres of hot Jupiters. However, the atmospheric composition of warm Neptunes and brown dwarfs is modified sufficiently to impact observational spectra in the wavelength range in whichJames WebbSpace Telescope will operate. Concerning Uranus and Neptune, the update of the chemical scheme modifies the abundance of CO and thus impacts the deep oxygen abundance required to reproduce the observational data. For future 3D kinetics models, we also derived a reduced scheme containing 44 species and 582 reactions.Conclusions.Chemical schemes should be regularly updated to maintain a high level of reliability on the results of kinetic models and be able to improve our knowledge of planetary formation.
Herzinsuffizienznetzwerke (HF-NETs) und Herzinsuffizienzeinheiten (HFUs) – ein Überblick
Authors: Güder Gülmisal , Störk Stefan 
Published: December 2019

ZusammenfassungDie Herzinsuffizienz zeichnet sich durch eine hohe Hospitalisations- und Letalitätsrate aus. Ambulante und stationäre Herzinsuffizienzeinheiten (HFUs) zielen darauf ab, in einem gemeinsam strukturierten regionalen Netzwerk (HF-NET) jede Versorgungsstufe der Herzinsuffizienz auf hohem Niveau zu behandeln, die Prognose der Herzinsuffizienz zu verbessern und die Hospitalisationsrate zu senken. Als zusätzliche, für den reibungslosen Ablauf zwingend erforderliche Akteure sind in allen HFUs nichtärztliche spezialisierte Fachkräfte vorzusehen. Jede stationäre HFU benötigt zusätzlich zur Akutversorgung ein standardisiertes Entlassmanagement sowie SOPs zur Überleitung von Patienten in die poststationäre, ambulante Versorgung. Das poststationäre Versorgungsprogramm wird im Kern von Hausarzt und niedergelassenem Kardiologen ausgestaltet (regionale SOPs) und bezieht weitere medizinische Akteure, z. B. Rehabilitationskliniken, mit ein.
Innovative interventionelle Therapie der Herzinsuffizienz
Authors: Oehler Daniel , Horn Patrick 
Published: December 2019

ZusammenfassungHerzinsuffizienz ist ein klinisches Syndrom, das durch eine diastolische und/oder systolische Dysfunktion des Herzens gekennzeichnet ist. Weltweit stellt diese zunehmend ein pandemisches Problem dar, das neuer, innovativer Therapieprinzipien bedarf, um die bestehende medikamentöse Therapie zu unterstützen. Neben etablierten Methoden gibt es dabei vielversprechende neue Ansätze, die entweder bereits bestehende chirurgische Prinzipien aufgreifen oder neue mechanistische Prinzipien bedienen, um die Symptomkontrolle und das Outcome der Patienten mit Herzinsuffizienz weiter zu verbessern.
Hypoperfusionssyndrom und kardiogener Schock
Authors: Hennersdorf Marcus , Scharpf Dominik 
Published: December 2019

ZusammenfassungDer kardiogene Schock stellt nach wie vor ein Krankheitsbild mit hoher Mortalität dar. In dieser Situation entwickelt sich nahezu regelhaft eine Laktatazidose durch Gewebsischämie. Diese wiederum unterstützt den klinischen Gesamteindruck eines Schockzustandes. Das erhöhte Laktat bzw. mehr noch die verzögerte oder fehlende Laktatclearance sind harte Prädiktoren der schlechten Prognose. In dieser Situation ist die hämodynamische Stabilisierung neben der Ursachentherapie oberstes Gebot. Eine balancierte Volumen-/Katecholamintherapie stellt die Basis dar. Früh muss aber eine Entscheidung für oder gegen den Einsatz eines mechanischen Unterstützungssystems fallen. Entscheidungshilfen sind klinische, aber auch laborchemische und interventionelle Faktoren. Das fallende Laktat (die Laktatclearance) ist auch unter extrakorporalem System der wichtigste Ausdruck einer funktionierenden Therapie. Randomisierte Studien, die eine Prognoseverbesserung dieser schwer kranken Patienten beweisen, existieren derzeit nicht. Umso wichtiger ist der rationale, aber frühe Einsatz dieser Systeme nach in Positionspapieren definierten Kriterien.
Hindernisse und Risiken bei der Implementierung einer
Kurzintervention nach Screening alkoholbezogener Störungen mittels AUDIT
in der Unfallchirurgie
Authors: Stuppe Markus , Bischof Gallus 
Published: December 2019

ZusammenfassungAuf einer unfallchirurgischen Station wurde über 3 Monate ein
modifizierter AUDIT eingesetzt, um alle neu aufgenommenen Patienten mit
alkoholbezogenen Störungen zu identifizieren und nach einer
Kurzintervention dem suchtspezifischen Behandlungssystem zuführen zu
können. 361 Patienten bekamen den Fragebogen in den ersten
Behandlungstagen ausgehändigt und erhielten bei einem
auffälligen Screeningergebnis das Angebot zu einem Gespräch. Mit
diesem Verfahren wurde in einem naturalistischen Setting jedoch kein Patient mit
einer schweren alkoholbezogenen Störung erreicht. Eine reduzierte
Inanspruchnahme des zuvor üblichen Konsilverfahrens und die
möglicherweise gesenkte Diagnosestellung durch die behandelnden
Ärzte deuteten sogar auf das potentielle Risiko einer Verschlechterung
der Versorgung hin. Implementierungskräfte müssen beachtet
werden.
The Impact of Systematic Laparoscopic Skills and Suture Training on Laparoscopic Hysterectomy Outcomes in a Brazilian Teaching Hospital
Authors: Lobão Gonçalves Anna Luiza , Ayroza-Ribeiro Helizabet Abdala , Lima Raquel Ferreira , Yonamine Aline Estefane Eras , Ohara Fabio , Ayroza-Ribeiro Paulo Augusto Galvão 
Published: December 2019

Abstract
Objective To evaluate the impact of systematic laparoscopic skills and suture training (SLSST) on the total laparoscopic hysterectomy intra- and postoperative outcomes in a Brazilian teaching hospital.
Methods A cross-sectional observational study in which 244 charts of total laparoscopic hysterectomy (TLH) patients operated from 2008 to 2014 were reviewed. Patient-specific (age, parity, previous cesarean sections, abdominal surgeries and endometriosis) and surgery-related variables (hospital stay, operative time, uterine volume and operative complications) were analyzed in three different time-frame groups: 2008-09 (I-1) – TLHs performed by senior attending physicians; 2010-11 (I-2) – TLHs performed by residents before the implementation of the SLSST program; and 2012-14 (I-3) – TLHs performed by residents after the implementation of the SLSST program.
Results A total of 244 TLH patients (mean age: 45.93 years) were included: 24 (I-1), 55 (I-2), and 165 (I-3). The main indication for TLH was uterine myoma (66.4%). Group I-3 presented a decrease in surgical time compared to group I-2 (p = 0.010). Hospital stay longer than 2 days decreased in group I-3 compared to group I-2 (p = 0.010). Although we observed decreased uterine volume (154.2 cm3) in group I-2 compared to group I-1 (217.8 cm3) (p = 0.030), logistic regression did not find any association between uterine volume and surgical time (p = 0.103).
Conclusion The total operative time for laparoscopic hysterectomy was significantly shorter in the group of patients (I-3) operated after the systematic laparoscopic skills and suture training was introduced in our hospital.
Idade – Deve ser levada em conta? Estudo da morbidade perioperatória e a evolução no longo prazo dos pacientes acima de 70 anos submetidos à cirurgia da coluna vertebral, devido a doenças degenerativas lombares
Authors: Palliyil Nigil Sadanandan , Shah Siddharth , Rai Ravi Ranjan , Dalvie Samir , Monteiro Joseph 
Published: December 2019

Resumo
Objetivos Avaliar o resultado no longo prazo e a morbidade perioperatória em cirurgias da coluna vertebral, devido a doenças lombares degenerativas e, assim, avaliar a segurança da cirurgia na população idosa.
Métodos Estudo retrospectivo de pacientes com idade superior a 70 anos, submetidos à cirurgia em virtude de distúrbios lombares degenerativos, entre 2011 e 2015. Foram avaliados os dados demográficos, clínicos e cirúrgicos dos pacientes; comorbidades; complicações perioperatórias; escores de dor no pré e no pós-operatório; índice de incapacidade de Oswestry (ODI, na sigla em inglês); satisfação do paciente e a mortalidade geral.
Resultados Foram estudados 103 pacientes (homens:mulheres, 55:48) com idade média de 74,6 anos (70 a 85 anos). 60 pacientes (58,2%) apresentaram somente descompressão, enquanto 43 (41,8%) apresentaram descompressão e fusão. O tempo médio de internação foi de 5,7 dias. O tempo médio de acompanhamento foi de 47,6 meses (24-73 meses). Os pacientes relataram melhora significativa da dor nas costas (pontuação numérica da dor 7,7 versus 1,6; p < 0,001), dor nas pernas (pontuação numérica da dor 7,4 versus 1,7; p < 0,001), incapacidade (ODI 82,3 versus 19,1; p < 0,001) e distância percorrida a pé (p < 0,001). Um total de 76% dos pacientes estavam satisfeitos com os resultados no momento do acompanhamento final. 26 pacientes (25,24%) apresentaram complicações perioperatórias, todas sem relevância e sem mortalidade. As complicações intra e pós-operatórias mais comuns foram ruptura dural (6,79%) e infecção do trato urinário (6,79%), respectivamente.
Conclusões Com meticulosos cuidados perioperatórios, a cirurgia da coluna lombar é segura e eficaz na população idosa. Os pacientes tiveram um maior tempo médio de internação hospitalar, em virtude do programa de reabilitação gradual e abrangente. A presença de comorbidades ou complicações perioperatórias sem relevância, não aumentou a morbidade geral, nem afetou os resultados clínicos da cirurgia em nosso estudo.
Functions of perturbed pairs of noncommuting contractions
Authors: Aleksandrov A. B. , Peller V. V. 
Published: December 2019

AbstractWe consider functionsof pairs of noncommuting contractions on Hilbert space and study the problem as to which functionswe have Lipschitz type estimates in Schatten–von Neumann norms. We prove that ifbelongs to the Besov classof analytic functions in the bidisc, then we have a Lipschitz type estimate for functionsof pairs of not necessarily commuting contractionsin the Schatten–von Neumann normsfor. On the other hand, we show that for functions in, there are no such Lipschitz type estimates for, nor in the operator norm.
Uniqueness theorems for one-dimensional and double Franklin series
Authors: Gevorkyan G. G. 
Published: December 2019

Abstract
The paper contains two main results. First we describe one-dimensional Franklin series converging everywhere except possibly on a finite set to an everywhere-finite integrable function. Second we establish a class of subsets of

with the following property. If a double Franklin series converges everywhere except on this set to an everywhere-finite integrable function, then it is the Fourier–Franklin series of this function. In particular, all countable sets are in this class.
Existence and uniqueness of solution of a certain boundary-value problem for a convolution integral equation with monotone non-linearity
Authors: Khachatryan Kh. A. 
Published: December 2019

Abstract
We study the existence and uniqueness as well as the asymptotic behaviour of solutions of a certain boundary-value problem for a convolution integral equation on the whole line with monotone non-linearity. In some special cases, there are concrete applications to

-adic string theory, the mathematical theory of the geographical spread of an epidemic, the kinetic theory of gases and the theory of radiation transfer. We prove the existence and uniqueness of an odd bounded continuous solution. The monotonicity and the integral asymptotics of this solution is also discussed. We finally give particular application-oriented examples of the equations considered, which illustrate the special nature of our results.
Integer expansion in systems of translates and dilates of a single function
Authors: Filippov V. I. 
Published: December 2019

Abstract
We study expansions with integer coefficients of elements in the multidimensional spaces

,

, in systems of translates and dilates of a single function. We describe models useful in applications, including those in multimodular spaces. The proposed approximation of elements in

,

, has the property of image compression, that is, there are many zero coefficients in this expansion. The study may also be of interest to specialists in the transmission and processing of digital information since we find a simple algorithm for approximating in

,

, having this property.
Diffeomorphisms of 2-manifolds with one-dimensional spaciously situated basic sets
Authors: Grines V. Z. , Kurenkov E. D. 
Published: December 2019

Abstract
We consider orientation-preserving

-diffeomorphisms of orientable surfaces of genus greater than one with a one-dimensional spaciously situated perfect attractor. We show that the topological classification of restrictions of diffeomorphisms to such basic sets can be reduced to that of pseudo-Anosov homeomorphisms with a distinguished set of saddles. In particular, we prove a result announced by Zhirov and Plykin, which gives a topological classification of the

-diffeomorphisms of the surfaces under discussion under the additional assumption that the non-wandering set consists of a one-dimensional spaciously situated attractor and zero-dimensional sources.
Subdivision schemes on the dyadic half-line
Authors: Karapetyants M. A. 
Published: December 2019

Abstract
We consider subdivision schemes, which are used for the approximation of functions and generation of curves on the dyadic half-line. In the classical case of functions on the real line, the theory of subdivision schemes is widely known because of its applications in constructive approximation theory and signal processing as well as for generating fractal curves and surfaces. We define and study subdivision schemes on the dyadic half-line (the positive half-line endowed with the standard Lebesgue measure and the digit-wise binary addition operation), where the role of exponentials is played by Walsh functions.
We obtain necessary and sufficient conditions for the convergence of subdivision schemes in terms of the spectral properties of matrices and in terms of the smoothness of solutions of the corresponding refinement equation. We also investigate the problem of convergence of subdivision schemes with non-negative coefficients. We obtain an explicit criterion for the convergence of algorithms with four coefficients. As an auxiliary result, we define fractal curves on the dyadic half-line and prove a formula for their smoothness. The paper contains various illustrative examples and numerical results.
Light-driven carbon−carbon bond formation via CO2reduction catalyzed by complexes of CdS nanorods and a 2-oxoacid oxidoreductase
Authors: Hamby Hayden , Li Bin , Shinopoulos Katherine E. , Keller Helena R. , Elliott Sean J. , Dukovic Gordana 
Published: December 2019

SignificanceNature uses enzymes to catalyze a vast array of complex chemical reactions. Enzymes that catalyze reduction reactions require partners that provide the electrons ultimately used in catalysis. In nature, the associated electron transfer sequences can be complicated, energy-inefficient, and rate determining. Here, we employ artificial electron donors, photoexcited semiconductor nanocrystals, to provide the electrons for catalysis. We couple these nanocrystals with an enzyme that catalyzes the formation of carbon−carbon bonds via CO2reduction. With this architecture, we demonstrate light-driven formation of 2-oxoglutarate, storing some of the photon energy in the chemical product. We examine the role of electron transfer from the nanocrystal to the enzyme in the light-driven chemical conversion and learn that the enzyme modulates this process during catalysis.
Universal relation with regime transition for sediment transport in fine-grained rivers
Authors: Ma Hongbo , Nittrouer Jeffrey A. , Wu Baosheng , Lamb Michael P. , Zhang Yuanfeng , Mohrig David , Fu Xudong , Naito Kensuke , Wang Yuanjian , Moodie Andrew J. , Wang Guangqian , Hu Chunhong , Parker Gary 
Published: December 2019

Significance
Fine-grained sediment transport systems (grain size under 2,000 μm) are ubiquitous over time and space on Earth and extraplanetary surfaces, and include rivers, deltaic coastal settings, and submarine, lahar, and subglacial systems. Forecasting the evolution of Earth’s surface requires a predictive algorithm for sediment transport. Herein we provide a universal relation for sediment transport in fine-grained rivers. Surprisingly, it is shown that sediment flux differs by up to 2 orders of magnitude as grain size changes only slightly near the boundary between very fine sand and fine sand. The universal applicability of the sediment transport formulation enables quantitative understanding of the sedimentology and morphology of fine-grained rivers.
Practices and attitudes toward replication in empirical translation and interpreting studies
Authors: Olalla-Soler Christian 
Published: December 2019

Abstract
This article presents the results of three studies on practices in and attitudes toward replication in empirical
translation and interpreting studies. The first study reports on a survey in which 52 researchers in translation and interpreting
with experience in empirical research answered questions about their practices in and attitudes toward replication. The survey
data were complemented by a bibliometric study of publications indexed in the Bibliography of Interpreting and Translation (BITRA)
(Franco Aixelá 2001–2019) that explicitly stated in the title or abstract that they
were derived from a replication. In a second bibliometric study, a conceptual replication of Yeung’s (2017) study on the acceptance of replications in neuroscience journals was conducted by analyzing 131
translation and interpreting journals. The article aims to provide evidence-based arguments for initiating a debate about the need
for replication in empirical translation and interpreting studies and its implications for the development of the discipline.