bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preliminary experience with continuous right ventricular pressure and transesophageal echocardiography monitoring in orthotopic liver transplantation
Authors: Miles Lachlan F. , Couture Etienne J. , Potes Cristhian , Makar Timothy , Fernando Malindra C. , Hungenahally Akshay , Mathieson Matthew D. , Perlman Hannah , Perini Marcos V. , Thind Dilraj , Weinberg Laurence , Denault André Y. 
Published: February 2022

Background
Despite increasing attention in the cardiac anesthesiology literature, continuous measurement of right ventricular pressure using a pulmonary artery catheter has not been described in orthotopic liver transplantation, despite similarities in the anesthetic approach to the two populations. We describe our preliminary experience with this technique in orthotopic liver transplantation, and by combining various derived measures with trans-esophageal echocardiography, make some early observations regarding the response of these measures of right ventricular function during the procedure.

Methods
In this case series, ten patients (five men and five women) undergoing orthotopic liver transplantation in our institution had their surgeries performed while monitored with a pulmonary artery catheter with continuous right ventricular port transduction and trans-esophageal echocardiography. We recorded various right ventricular waveform (early-to-end diastolic pressure difference, right ventricular outflow tract gradient, right ventricular dP/dT and right ventricular end-diastolic pressure) and echocardiographic (right ventricular fractional area change, tricuspid annular plane systolic excursion, right ventricular lateral wall strain) and described their change relative to baseline at timepoints five minutes before and after portal vein reperfusion, immediately after hepatic artery reperfusion and on abdominal closure.

Results
Except for tricuspid annular plane systolic excursion at five minutes prior to reperfusion (mean −0.8 cm; 95% CI−1.4, –0.3; p = 0.007), no echocardiographic metric was statistically significantly different at any timepoint relative to baseline. In contrast, changes in right ventricular outflow tract gradient and right ventricular dP/dt were highly significant at multiple timepoints, generally peaking immediately before or after reperfusion before reducing, but not returning to baseline in the neohepatic phase. Nine of 10 participants in this series demonstrated a degree of dynamic right ventricular outflow tract obstruction, which met criteria for hemodynamic significance (> 25 mmHg) in two participants. These changes were not materially affected by cardiac index.

Conclusions
Dynamic right ventricular outflow tract obstruction of varying severity appears common in patients undergoing orthotopic liver transplantation. These results are hypothesis generating and will form the basis of future prospective research.
Exploring HbA1c variation between Australian diabetes centres: The impact of centre-level and patient-level factors
Authors: Quigley Matthew , Earnest Arul , Szwarcbard Naomi , Wischer Natalie , Andrikopoulos Sofianos , Green Sally , Zoungas Sophia 
Published: February 2022

Background
Increasing global diabetes incidence has profound implications for health systems and for people living with diabetes. Guidelines have established clinical targets but there may be variation in clinical outcomes including HbA1c, based on location and practice size. Investigating this variation may help identify factors amenable to systemic improvement interventions. The aims of this study were to identify centre-specific and patient-specific factors associated with variation in HbA1c levels and to determine how these associations contribute to variation in performance across diabetes centres.

Methods
This cross-sectional study analysed data for 5,872 people with type 1 (n = 1,729) or type 2 (n = 4,143) diabetes mellitus collected through the Australian National Diabetes Audit (ANDA). A linear mixed-effects model examined centre-level and patient-level factors associated with variation in HbA1c levels.

Results
Mean age was: 43±17 years (type 1), 64±13 (type 2); median disease duration: 18 years (10,29) (type 1), 12 years (6,20) (type 2); female: 52% (type 1), 45% (type 2). For people with type 1 diabetes, volume of patients was associated with increases in HbA1c (p = 0.019). For people with type 2 diabetes, type of centre was associated with reduction in HbA1c (p <0.001), but location and patient volume were not. Associated patient-level factors associated with increases in HbA1c included past hyperglycaemic emergencies (type 1 and type 2, p<0.001) and Aboriginal and Torres Strait Islander status (type 2, p<0.001). Being a non-smoker was associated with reductions in HbA1c (type 1 and type 2, p<0.001).

Conclusions
Centre-level and patient-level factors were associated with variation in HbA1c, but patient-level factors had greater impact. Interventions targeting patient-level factors conducted at a centre level including sick-day management, smoking cessation programs and culturally appropriate diabetes education for and Aboriginal and Torres Strait Islander peoples may be more important for improving glycaemic control than targeting factors related to the Centre itself.
Acting-Out Maternal Trauma: Lola Arias’sMelancolía y manifestaciones(2012)
Authors: Longinovic Nina 
Published: February 2022

AbstractWritten as an extension to her best-known play Mi vida después (2009)– in which the adult children of victims and victimizers of the dictatorship recall portions of their parents’ stories, Lola Arias’s Melancolía y manifestaciones is a loosely-bound collage of scenes recalling the playwright’s mother’s long bout with depression. At the beginning of the play, audiences are told that the mother begins to suffer from this depression following the playwright’s birth, which in turn happens to coincide with the first year of the military junta in Argentina. As a biodrama with a political subtext, the play has been read as a form of post-dictatorship testimonio, yet this essay argues that Arias’s use of Brechtian realism, absurdist humor and postmodern theatrical strategies has the effect of distancing audiences from the emotions associated with traumatic testimonial narratives.
Hibris literaria, eco-autismo y empatía enLa mujer que buceó dentro del corazón del mundode Sabina Berman
Authors: Ugarte Ana 
Published: February 2022

ResumenLa mujer que buceó dentro del corazón del mundo (2010), una ficción autobiográfica narrada por una mujer con síndrome Asperger, construye el autismo como un ethos capaz de interceptar, debilitar y deconstruir la violencia extractivista y patriarcal que consume el planeta. Este artículo explora una idiosincrasia narrativa que aquí denomino hibris literaria: un exceso de confianza en los poderes del medio literario para representar con solvencia la alteridad del personaje. Este exceso implica una yuxtaposición éticamente problemática entre el proceso de figuración ficcional inherente a cualquier novela y la imposibilidad de tal ejercicio de figuración atribuido a la cognición de las personas con Asperger.
Rojo y negro: Feminismo con disimulo en las filas de Falange Española
Authors: Encinas Silvia 
Published: February 2022

Resumen
Al demostrar un rol militante activo y en igualdad con sus compañeros de filas de la Quinta Columna falangista, la protagonista de la película Rojo y negro (1942), de Carlos Arévalo, contradice el tipo de mujer sumisa que propugnará el franquismo una vez asentado. En este artículo, examino cómo la película refleja el modelo ideal falangista encarnado en el género femenino, cuyos valores de servicio y entrega se consideran, a un tiempo, cualidades femeninas y militares. Con ello, la protagonista aspira a lograr un mayor grado de autonomía fuera del espacio doméstico.
De la repetición naturalista en la literatura latinoamericana: Narrativa prostibularia y condición periférica enLa novia oscurade Laura Restrepo
Authors: Teixeira Esther 
Published: February 2022

ResumenEste ensayo tiene como objetivo demostrar cómo Laura Restrepo incorpora elementos de la estética naturalista decimonónica para abordar la temática de la prostitución en La novia oscura (1999). En la visión de Restrepo, tanto la prostituta como su cliente, el obrero, son sometidos a estructuras sociales que los oprimen. Asimismo, tras el uso de la prostitución como alegoría, la obra invita a una reflexión de la prostitución como contaminación simbólica que afecta, no solo a la protagonista, Sayonara, sino a los habitantes del microcosmos colombiano de Tora.
Entwurf eines Störgrößenbeobachters auf der Grundlage eines bereits existierenden Beobachters ohne Störmodell
Authors: Nuß Uwe 
Published: February 2022

Zusammenfassung
Im Beitrag wird ein zweistufiges Verfahren für den Entwurf eines Störgrößenbeobachters für lineare, zeitinvariante Systeme vorgestellt. Hierbei wird davon ausgegangen, dass die Beobachterrückführung für den Beobachter ohne Störmodell bereits vorliegt. Es wird dargestellt, wie darauf basierend mit einfachen formelmäßigen Zusammenhängen die Rückführkoeffizienten für den Störgrößenbeobachter ermittelt werden können. Die beschriebene Methode erhöht die Übersichtlichkeit hinsichtlich des Einflusses des Störmodells auf die Beobachterrückführkoeffizienten und ist außerdem für Modelle mit geringer Systemordnung rechenzeitsparender.
Effects of flue gas recirculation on nitrogen oxide formation in 1000 MW S-CO2 coal-fired boiler with partial expansion furnace
Authors: Gu Ming-yan , Yuan Jin-yan , Wang Ming-ming , Wang Ji-min , Huang Xiang-yong , Chu Hua-qiang 
Published: February 2022

Abstract
Since the heat transfer coefficient of supercritical carbon dioxide (S-CO2) is approximately 1/2–2/3 of traditional steam boiler, the S-CO2 boiler structure, cooling wall arrangement and combustion system is different from traditional boiler configuration. This paper takes a 1000 MW S-CO2 coal-fired boiler with partial expansion furnace and partial flow strategy arrangement for cooling wall as research object, the coal combustion and NOx generation characteristics in the furnace were numerically examined with the flue gas recirculation rate of 0–35%. The calculation results show that under staged combustion, the flue gas recirculation increases the ignition temperature of the pulverized coal and reduces the combustion temperature. And the expansion of the upper furnace further reduces gas temperature. Besides, as the flue gas recirculation rate increases, the gas temperature decreases. The flue gas recirculation may lower the production of NOx in the main combustion zone, and reduce the production of NOx further in the expansion zone. The average NOx concentration at the outlet decreases from 439 to 365 ppm when the flue gas recirculation rate increases from 0 to 27%. While the flue gas recirculation rate increases from 27% to 35%, the average NOx concentration is not changed obviously.
Effect of impact damage on electrical resistivity of C/C–SiC composites
Authors: Srivastava V. K. , Maile K. , Bothe K. , Udoh A. 
Published: February 2022

Abstract
The main objective of the present work was to study the low-velocity weight-drop impact damage behaviour of carbon – carbon silicon carbide (C/C– SiC) composites on electrical resistivity of the direct-current potential drop method. The results show that the electrical resistivity increases with increasing impact energy, which confirms that pre-microcracks of C/C– SiC composite grow very rapidly with a little amount of impact load and turn into a loss of conductivity of the material.
Enthalpies of mixing of liquid Al–Fe–Ge alloys
Authors: Kanibolotsky Dmitry S. , Kotova Nataliya V. , Bieloborodova Olena A. , Lisnyak Vladyslav V. 
Published: February 2022

Abstract
The partial and integral enthalpies of mixing of Al–Fe–Ge melts have been measured by high-temperature calorimetry at 1740 ± 5 K. The integral enthalpies of mixing at 1173 K, are about 4 to 6 kJ mol–1 less negative than determined by electromotive force measurement [9]. The integral enthalpies of mixing have been also estimated on the basis of the Bonnier geometric model. The calculated values show a reasonable agreement with experimental data for x
Ge > 0.3. A difference between experimental and estimated integral enthalpies of mixing (up to 2.5 kJ mol–1) is observed for ternary alloys with low germanium content.
Activity measurements of Ga in liquid Ga–Tl alloys by EMF method with zirconia solid electrolyte
Authors: Katayama Iwao , Shimazawa Keiko , Živković Dragana , Manasijević Dragan , Živković Živan , Iida Takamichi 
Published: February 2022

Abstract
Electromotive force measurements (EMF) of an electrochemical cell with zirconia as solid electrolyte were performed to determine the Ga activity from 973 to 1273 K in the entire composition range of liquid Ga–Tl alloys. In the whole concentration range, the activity of Ga shows large positive deviations from ideality, and the activity of Tl which is derived by the Gibbs–Duhem equation shows also positive deviation from ideality. The parameters of the Redlich – Kister equation for excess Gibbs energies of mixing are determined from the results obtained in this study which were compared with Chou’s model calculation.
Challenges and interesting observations associated with feedback-controlled nanoindentation
Authors: Warren Oden L. , Downs Seth A. , Wyrobek Thomas J. 
Published: February 2022

Abstract
Accurate feedback control of the nanoindentation process is particularly challenging from the perspectives of many orders of magnitude change in contact stiffness and the use of the ramp/hold/ramp protocol. The conventional proportional-integral-derivative feedback control algorithm is not well suited for such an application. Here we provide a description and present performance data for a newly developed digital control algorithm that augments the familiar proportional-integral-derivative routine with an adaptive feedforward control having inputs related to open-loop device physics and encountered contact mechanics. This novel approach results in reproducing even a steep demand ramp with minimal feedback error. Additionally, we discuss interesting observations made with respect to the varied displacement-controlled nanoindentation responses of materials. Metals, in particular, are found to expose especially rich nanomechanical phenomena when the force-displacement curves are measured under displacement control. The findings of this study nicely illustrate the decided scientific advantages of displacement control over load control.
Conservative motion of parent-martensite interfaces
Authors: Pond Robert C. , Ma Xiao 
Published: February 2022

Abstract
Parent-martensite interfaces are modelled in this work as semi-coherent interfaces comprising coherent terraces reticulated by arrays of defects that accommodate coherency strains. It is demonstrated that such interfaces can migrate conservatively if one set of defects is an array of disconnections (transformation dislocations) that can glide along the terraces. The topological character of disconnections (Burgers vector and step height) that can glide in this way is elucidated. Experimental observations of martensitic interfaces in ZrO2, Ti-10 wt.% Mo and ferrous alloys are then examined in the light of this understanding. In the cases reviewed, it is found that the interface structures observed are consistent with the terrace/disconnection model proposed.
Thermodynamic stabilization of nanocrystallinity
Authors: III C. E. Krill , Ehrhardt H. , Birringer R. 
Published: February 2022

Abstract
Nanocrystalline materials are polycrystals made up of nanometer-sized grains separated by a network of interfaces – grain or phase boundaries – that generally make a positive contribution to the total energy of the system. Consequently, there exists a thermodynamic driving force for reducing the overall interface area, which renders such systems intrinsically unstable against coarsening. The latter process entails interface migration and the concomitant deterioration of any property enhancements effected by the ultrafine grain size. We describe a strategy for significantly reducing or even eliminating the driving force for grain growth in nanocrystalline materials via the deliberate segregation of solute atoms into the core region of boundaries. Applied to Pd – Zr solid solutions containing up to 20 at.% Zr, the strategy yields nanocrystalline specimens manifesting an unusually high thermal stability with respect to grain growth, extending to the vicinity of the melting point. Parallels are drawn between the migration of grain boundaries in segregation-stabilized systems and antiphase domain boundaries in ordered alloys.
On the relation between the anisotropies of grain boundary segregation and grain boundary energy
Authors: Wynblatt Paul , Shi Zhan , Pang Ying , Chatain Dominique 
Published: February 2022

Abstract
Recently developed models of grain boundary segregation and grain boundary energy, as a function of the 5 macroscopic parameters of grain boundary orientation, have been used to predict the behavior of a simple face centred cubic alloy. It is shown that the equilibrium composition, as well as the composition profile, on one side of a boundary with a given terminating plane, depends on the crystallographic orientation of the terminating plane of the other side of the grain boundary. These predictions are confirmed by recent measurements of Nb segregation to TiO2 grain boundaries. In addition, the models show stronger solute segregation to higher energy grain boundaries of the pure solvent. This result is also confirmed by the experimental distribution in orientation space of Nb segregation to TiO2 grain boundaries, when it is compared to the orientation distribution of the grain boundary energy of pure TiO2. The overall results are consistent with expectations from the Gibbs adsorption isotherm, and indicate that grain boundary energy anisotropy is decreased by grain boundary segregation.
Influence of faceting-roughening on triple-junction migration in zinc
Authors: Straumal Boris B. , Sursaeva Vera G. , Gornakova Alena S. 
Published: February 2022

Abstract
The faceting and migration of individual triple junctions in Zn tricrystals under a constant driving force was investigated. The triple junction (TJ) was formed by three [101̅0] tilt grain boundaries (GBs) with misorientation angles θ of 43°, 37° and 6°. The stationary shape of the migrating triple junction was studied, and the migration rate was measured in-situ between 670 and 688 K using polarized light. In some experimental runs, a facet was formed on the θ = 37° [101̅0] tilt GB. This facet was parallel to the close-packed plane in the constrained coincidence site lattice (CCSL). The length of this facet decreases with increasing temperature and becomes zero at 688 K. The temperature dependence of the facet length is better described by the mean-field Andreev approximation than by the solid-on-solid model. The step energy estimated in the framework of the Bonzel approximation is about 0.1 eV/atom. In other experimental runs, the θ = 37° [101̅0] tilt GB did not facet and remained rough in the same temperature interval. This fact allowed us to compare the stationary migration of the same TJ with faceted and rough GBs. ATJ formed by faceted GBs migrates one to two orders of magnitude more slowly in comparison with a rough TJ. An unrealistically high value of the apparent migration activation enthalpy of faceted TJs can appear due to the changing geometry of faceted GBs, similar to the case of migration of faceted twin tips.
Grain boundary dynamics and selective grain growth in non-ferromagnetic metals in high magnetic fields
Authors: Molodov D. A. , Konijnenberg P. J. 
Published: February 2022

Abstract
Grain boundary motion can be affected by a magnetic field if the anisotropy of the magnetic susceptibility generates a gradient of the magnetic free-energy density across the boundary. Due to this magnetic driving force, annealing of locally deformed single crystals in high magnetic fields results in growth selection. The character distribution of the boundaries connected to growth selection is found to be far from random. If a magnetic energy density gradient as a driving force is superimposed to a curvature driving force during grain growth, this biases the microstructure evolution with regard to grain size and crystallographic texture, as it is demonstrated on polycrystalline zinc and titanium. Analysis of individual orientation data reveals that the observed asymmetrical texture stems to a large extent from a difference in grain numbers of the individual texture components.
Direct measurement of nanoindentation area function by metrological AFM
Authors: Aldrich-Smith G. , Jennett N. M. , Hangen U. 
Published: February 2022

Abstract
Both the hardness and modulus values obtained by nanoindentation depend on knowledge of the area of contact between the test material and the indenter. Significant errors can be introduced into the measurement if the projected area of the indentation contact is not known with sufficient accuracy. The state-of-the-art for user validation of indenter area function is to use materials of known Young’s modulus in the ‘two reference materials method’. However, the area function is best measured directly by traceably calibrated metrological atomic force microscopy. An area function for a standard Hysitron indenter was generated, using both atomic force microscopy and indentation. The results are compared, and the effect of data fitting techniques and measurement uncertainty are discussed.
Interfacial reaction between Cu and Ti2SnC during processing of Cu–Ti2SnC composite
Authors: Wu Jinyi , Zhou Yanchun , Wang Jingyang , Wang Wei , Yan Chengke 
Published: February 2022

Abstract
Interfacial reaction between Cu and Ti2SnC during the processing of Cu–Ti2SnC composite was investigated by using X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. It is shown that the reaction is closely related to the reaction temperature, reaction time, and relative ratio of Cu and Ti2SnC. The reacting products are Cu(Sn) solid solution and TiC
x
, and the transporting process during interfacial reaction is described. The interfacial reaction products are further confirmed by measuring the hardness across the interface using nanoindentation test. It is shown that the reaction is controlled by the de-intercalation of Sn from Ti2SnC to form Cu(Sn) solid solution and TiC
x
, and crystallographic relations of [01̅1] TiC
x
// [010] Ti2SnC and (11̅1̅) TiC
x
// (001) Ti2SnC were observed at the interface. The effect of interfacial reaction on the mechanical and electrical properties of the composite is also discussed.
A Robust Physics-Based Calculation of Evolving Gas–Liquid Interfaces
Authors: Šatura Lukáš , Minichová Mária , Pavelka Michal , Kosek Juraj , Zubov Alexandr 
Published: February 2022

Abstract
Density gradient theory describes the evolution of diffuse interfaces in both mixtures and pure substances by minimization of the total free energy, which consists of a non-convex bulk part and an interfacial part. Minimization of the bulk free energy causes phase separation while building up the interfacial free energy (proportional to the square of gradients of the species’ densities) and it results in the equilibrium shape of the interface. However, direct minimization of the free energy is numerically unstable and the coefficients in the interfacial part of the free energy are often estimated from experimental data (not determined from the underlying physics). In this paper we develop a robust physics-based numerical approach that leads to the interface density profiles for both pure substances and mixtures. The model is free of fitting parameters and validated by available experimental data.