bluuebunny/crossref_metadata_2025_split huggingface dataset:
The stellar and wind parameters of six prototypical HMXBs and their evolutionary status
Authors: Hainich R. , Oskinova L. M. , Torrejón J. M. , Fuerst F. , Bodaghee A. , Shenar T. , Sander A. A. C. , Todt H. , Spetzer K. , Hamann W.-R. 
Published: January 2020

Context.High-mass X-ray binaries (HMXBs) are exceptional astrophysical laboratories that offer a rare glimpse into the physical processes that govern accretion on compact objects, massive-star winds, and stellar evolution. In a subset of the HMXBs, the compact objects accrete matter solely from winds of massive donor stars. These so-called wind-fed HMXBs are divided in persistent (classical) HMXBs and supergiant fast X-ray transients (SFXTs) according to their X-ray properties. While it has been suggested that this dichotomy depends on the characteristics of stellar winds, they have been poorly studied.Aims.With this investigation, we aim to remedy this situation by systematically analyzing donor stars of wind-fed HMXBs that are observable in the UV, concentrating on those with neutron star (NS) companions.Methods.We obtainedSwiftX-ray data, HST UV spectra, and additional optical spectra for all our targets. The spectral analysis of our program stars was carried out with the Potsdam Wolf–Rayet model atmosphere code.Results.Our multi-wavelength approach allows us to provide stellar and wind parameters for six donor stars (four wind-fed systems and two OBe X-ray binaries). The wind properties are in line with the predictions of the line-driven wind theory. Based on the abundances, three of the donor stars are in an advanced evolutionary stage, while for some of the stars, the abundance pattern indicates that processed material might have been accreted. When passing by the NS in its tight orbit, the donor star wind has not yet reached its terminal velocity but it is still significantly slower; its speed is comparable with the orbital velocity of the NS companion. There are no systematic differences between the two types of wind-fed HMXBs (persistent versus transients) with respect to the donor stars. For the SFXTs in our sample, the orbital eccentricity is decisive for their transient X-ray nature. The dichotomy of wind-fed HMXBs studied in this work is primarily a result of the orbital configuration, while in general it is likely that it reflects a complex interplay between the donor-star parameters, the orbital configuration, and the NS properties. Based on the orbital parameters and the further evolution of the donor stars, the investigated HMXBs will presumably form Thorne–Żytkow objects in the future.
Endoscopic management of iatrogenic EUS-related duodenal perforations with over-the-scope clips
Authors: El bacha Hicham , Prat Frederic 
Published: January 2020

Abstract
Background and study aims Iatrogenic endoscopic ultrasound (EUS) perforations are life-threatening adverse event and to date, surgery has been the main treatment for them. The aim of this study was to assess feasibility and safety of conservative treatment with over-the-scope clips (OTSC).
Patients and methods We performed a retrospective study, including iatrogenic EUS duodenal perforation with conservative endoscopic management from 2011 to August 2018. Patients who initial had surgical management were excluded.
Results In 8504 EUS procedure occurred, 13 perforations occurred (0.15 %). Eleven patients were included in the study, all women. Mean patient age was 75 years (range 68 – 88). Eighth of 11 perforations (72.7 %) were due to a radial probe and three of 11 (27.3 %) were due to a curvilinear probe. Eleven procedures (100 %) were performed as diagnostic. Defect size ranged from 10 to 15 mm. All procedures were successful. Three of eleven patients (27 %) had a stay in intensive care unit for less than 72 hours and length of total hospital stay ranged from 3 to 22 days.
Conclusion Conservative endoscopic treatment of Iatrogenic EUS perforation, with OTSC is feasible, efficient and safe.
Alterstraumazentrum – Warum? Was bedeutet das für die Struktur?
Authors: Förch Stefan , Mayr Edgar 
Published: January 2020

ZusammenfassungDa die Zahl älterer Patienten mit Frakturen im OP steigt, muss die Versorgung an ihre Bedürfnisse angepasst werden. Deshalb wurden in den letzten Jahren spezielle Alterstraumazentren aufgebaut. Lesen Sie, welche personellen, räumlichen und prozessuralen Strukturen sie aufweisen und wie geriatrische Patienten vor allem im Hinblick auf das funktionelle Ergebnis von einer spezialisierten, interdisziplinären Behandlung profitieren.
Komplette Remission einer Löffler-Endokarditis bei einer myeloischen und lymphatischen Neoplasie mit Eosinophilie unter Imatinib
Authors: Wienemann Hendrik , Bröckelmann Paul J. , Adam Matti 
Published: January 2020

Zusammenfassung
Anamnese Ein 53-jähriger Patient stellte sich mit massivem Pruritus bei Ganzkörperexanthem, generalisierten Muskelschmerzen und Belastungsdyspnoe NYHA II vor.
Untersuchungen und Diagnose Durch weiterführende hämatologische Untersuchungen wurde die Diagnose einer myeloischen und lymphatischen Neoplasie mit Eosinophilie (MLN-EO) und Nachweis eines FIPL1L1-PDGFRA-Fusionsgens gestellt. Im Rahmen der kardiologischen Diagnostik erfolgte eine echokardiografische Untersuchung mit Nachweis eines Thrombus im rechten Ventrikel. In der Magnetresonanztomografie (MRT) zeigte sich der intrakavitäre Thrombus vom Apex bis zum rechtsventrikulären Ausflusstrakt reichend.
Therapie und Verlauf Eine orale Antikoagulation mit Phenprocoumon und eine zielgerichtete Therapie mit Imatinib wurden initiiert. Hierunter konnte in den 11- und 23-monatigen Verlaufskontrollen mittels Magnetresonanztomografie der Thrombus nachweislich aufgelöst werden. Der weitere Verlauf gestaltete sich komplikationslos.
Folgerung Eine Löffler-Endokarditis mit begleitendem Ventrikelthrombus auf dem Boden einer myeloischen und lymphatischen Neoplasie mit Eosinophilie kann durch orale Antikoagulation und Therapie mit Imatinib erfolgreich behandelt werden.
A novel endoscopic imaging system for quantitative evaluation of colonic mucosal inflammation in patients with quiescent ulcerative colitis
Authors: Honzawa Yusuke , Matsuura Minoru , Higuchi Hirokazu , Sakurai Takaki , Seno Hiroshi , Nakase Hiroshi 
Published: January 2020

Abstract
Background and study aims Mucosal healing (MH) is associated with clinical outcome in ulcerative colitis (UC) patients. In most clinical trials, a Mayo endoscopic subscore (MES) of 0 or 1 is defined as MH. However, several recent studies have reported that clinical outcome is different between UC patients with MES 0 and those with MES 1. In addition, the MES is subjective and may differ among endoscopists. Therefore, a repeatable and objective scoring system is required to distinguish MES 0 from MES 1, even in clinically quiescent UC. Here, we assessed the usefulness of new image-enhancing endoscopic technology, the i-scan TE-c, to quantitatively evaluate colonic inflammation in patients with quiescent UC.
Methods We retrospectively reviewed the data from 52 UC patients in clinical remission who had undergone routine colonoscopy with standard white light. The white-light images were reassessed using the new system, and the degree of colonic mucosal inflammation was quantified according to the MAGIC (Mucosal Analysis of Inflammatory Gravity by i-scan TE-c Image) score. We used the i-scan TE-c system to investigate the association among the MAGIC score, MES, and histologic activity (Geboes score).
Results The MAGIC score was significantly higher in the MES 1 group than in the MES 0 group (P = 0.0034). The MAGIC score significantly correlated with the Geboes score (P = 0.015).
Conclusions Our novel image-enhancing endoscopic system was useful for objective and quantitative evaluation of MH in patients with quiescent UC. Further clinical studies using this imaging system are required to confirm its clinical benefit for the management of UC patients.
EUS-guided gallbladder drainage: a learning curve modified by technical progress
Authors: Tyberg Amy , Jha Kopal , Shah Shawn , Kedia Prashant , Gaidhane Monica , Kahaleh Michel 
Published: January 2020

Abstract
Introduction Endoscopic ultrasound-guided gallbladder drainage (EUS-GBD) is an efficacious and safe option for patients who cannot undergo cholecystectomy. It is a technically challenging procedure, requiring skills in EUS, and ERCP. The aim of this study was to define the learning curve for EUS-GBD.
Patients and methods Consecutive patients undergoing EUS-GBD by a single operator were included from a prospective registry over 5 years. Demographics, procedure information, post-procedure follow-up data, and information on adverse events were collected. Non-linear regression and CUSUM analyses were conducted for the learning curve. Clinical success was defined as resolution of cholecystitis post-procedure.
Results Forty-eight patients were included (58 % male, mean age 76 years). Twenty patients (42 %) had malignant cholecystitis. Most patients had lumen-apposing metal stents (LAMS) (15 mm, n = 29, 60 %; 10 mm, n = 8, 7 %). The remaining patients had FCSEMS (n = 9, 19 %) or plastic stents alone (n = 2, 4 %). Clinical success was achieved in 36 (86 %) of patients. Of the remaining 12, 7 were lost to follow-up and 5 had persistent cholecystitis. 9 patients (19 %) had adverse events including bleeding (n = 4), liver abscesses (n = 2), and hypotension. Two patients passed away post-procedure. Median procedure time was 41 minutes (range 16 – 121 min), with the 41-minute time occurring during the 19th procedure. Procedure durations further reduced, with the last 10 procedures being 20 minutes or under (nonlinear regression p value P < 0.0001).
Conclusion Endoscopists experienced in EUS-GBD are expected to achieve a reduction in procedure time over successive cases, with efficiency reached at 41 minutes and a learning rate of 19 cases. Continued improvement is demonstrated with additional experience
Adenomyosis in a Perimenopausal Woman Treated by Potentized Poison Hemlock—A Case Report
Authors: Ponnam Hima Bindu , Ciluveru Nanda Kishori , Irfan Mohammed , Chakali Bharathi 
Published: January 2020

AbstractAdenomyosis is a common pathological condition of the uterus where its diagnosis and treatment remain still a challenge to the treating physicians. Even though termed as benign, its clinical presentation of heavy, painful menstrual bleeding, infertility and hindrance to a women's quality of life makes it significant cause for treatment. The adenomyosis condition with significant symptoms is dealt with surgically in the conventional system of medicine by way of hysterectomy, uterine artery embolisation or endometrial ablation. These surgical interventions can be prevented with homoeopathic system of medicine. A case of adenomyosis in a 41-year-old female who presented with continuous heavy bleeding and severe pelvic pain was successfully treated with homoeopathy medicine, Conium maculatum, which is commonly called as poison hemlock. The medicine prescribed on totality alleviated not only symptoms of the patient but also resolved adenomyosis completely.
Humilifics in Mabzhi pastoralist speech of Amdo Tibetan
Authors: Samdrup Tsering , Suzuki Hiroyuki 
Published: January 2020

AbstractPoliteness strategies using specific word forms and morphemes are well known in Tibetan, in whichhonorificexpressions are in the majority. However, for Amdo Tibetan the politeness register is less well known. In this paper, the humilific politeness system of Mabzhi Amdo Tibetan is discussed in terms of ten morphologically-formed types, eight types of noun suffixes (/-ŋən/, /-tɕhəl/, /-tɕhəχ/, /-choχ/, /-ɦdəx/, /-ʈʋ̩/, /-rgen/, and /-ʂti/), and two adjective types (/ʔa xha ma/ and /nɖanɖa/), as well as suppletion. In addition, the article discusses both the use and misuse of humilifics providing case examples from natural conversation settings as well as a crosstalk (kha shags) performance to illustrate how humilifics are deployed, treated, and evaluated in the contemporary world of Mabzhi Tibetans.
Regression methods in waveform modeling: a comparative study
Authors: Setyawati Yoshinta , Pürrer Michael , Ohme Frank 
Published: January 2020

Abstract
Theoretical gravitational-wave models of compact-binary mergers need to be accurate, but also fast in order to compare millions of signals in near real time with experimental data. Various regression and interpolation techniques have been employed to build efficient waveform models, but no study has systematically compared the performance of these methods yet. Here we provide such a comparison. For analytical binary-black-hole waveforms, assuming either aligned or precessing spins, we compare the accuracy as well as the computational speed of a variety of regression methods, ranging from traditional interpolation to machine-learning techniques. We find that most methods are reasonably accurate, but efficiency considerations favour in many cases the simpler approaches. We conclude that sophisticated regression methods are not necessarily needed in standard gravitational-wave modeling applications, although machine-learning techniques might be more suitable for problems with higher complexity than what is tested here.
Plastic and superionic phases in ammonia–water mixtures at high pressures and temperatures
Authors: Naden Robinson Victor , Hermann Andreas 
Published: January 2020

Abstract
The interiors of giant icy planets depend on the properties of hot, dense mixtures of the molecular ices water, ammonia, and methane. Here, we discuss results from first-principles molecular dynamics simulations up to 500 GPa and 7000 K for four different ammonia–water mixtures that correspond to the stable stoichiometries found in solid ammonia hydrates. We show that all mixtures support the formation of plastic and superionic phases at elevated pressures and temperatures, before eventually melting into molecular or ionic liquids. All mixtures’ melting lines are found to be close to the isentropes of Uranus and Neptune. Through local structure analyses we trace and compare the evolution of chemical composition and longevity of chemical species across the thermally activated states. Under specific conditions we find that protons can be less mobile in the fluid state than in the (colder, solid) superionic regime.
Non-stationary oscillations of a box-like structure of a building
Authors: Usarov M , Mamatisaev G , Yarashov J , Toshmatov E 
Published: January 2020

Abstract
The problem of forced oscillations of a spatial box of a building is considered in the paper; it consists of interacting beams and rectangular panels under dynamic effect set by base displacement according to a sinusoidal law. The problem is solved by the finite difference method. Numerical results of displacements, stresses in the risk areas of the building box are obtained.
Forced vibrations of a box-like structure of a multi-storey building under dynamic effect
Authors: Usarov M , Mamatisaev G , Toshmatov E , Yarashov J 
Published: January 2020

Abstract
The article is devoted to improving the model of a box-like structure of a building, taking into account the forces and moments in the zones of contact interaction of beam and plate elements. The equations of motion of the box-like elements, the boundary conditions in the base of the box and the contact conditions between the elements of the box are given; the graphs of panels and beams displacements are constructed.
The model analytical finite rod-type element for static and dynamic analysis
Authors: Kovalchuk O 
Published: January 2020

Abstract
The paper presents a mathematical model for the calculation of rod structures based on analytical solutions of static and dynamic equations of state for rod or beam elements. Analytical solutions of the equations of state are used in the work and the matrix of influence is constructed from them. The model underlying the calculation allows the use of a real diagram of stretching and compression of structural materials. For a mathematical model, analytical solutions are formed in matrix form. This approach allows us to use the known algorithms of the finite-element and super-elements method for numerical studies and to obtain the result with high accuracy.
Service life of hydraulic structure reinforced concrete elements according to protective layer carbonization criteria
Authors: Yangiev A A , Bakiev M R , Muratov O A , Choriev J M , Djabbarova Sh 
Published: January 2020

Abstract
In the given article the design of service life for hydraulic structure reinforced concrete elements has been performed analytically with the use of the basic techniques and by constructing reinforced structure protective layer carbonization models, mathematic modelling methods for physical processes. The main goal of the work is to determine the service life for reinforced concrete structures of spillways and its elements under impact of the environment during their operation.
Natural Vibrations Of Structurally Inhomogeneous Multi-Connected Shell Structures With Viscoelastic Elements
Authors: Mavlanov Tulkin , Khudainazarov Sherzod , Khazratkulov Islomjon 
Published: January 2020

Abstract
The methods for solving the problems of natural vibrations of structurally inhomogeneous, multi-connected, axisymmetric shell structures based on the hereditary theory of viscoelasticity are given in the paper. Using the basic relations of the hereditary theory of viscoelasticity and asymptotic methods, the problem of natural vibrations of structurally inhomogeneous, multi-connected, axisymmetric shell structures is reduced to the effectively solvable mathematical problem of complex eigenvalues, in which approximate engineering methods are proposed.
Calculation of the bottom of vertical cylindrical steel tanks under the action of special loads
Authors: Elenitskiy E 
Published: January 2020

Abstract
The operation of the steel tanks under the action of two types of special loads is considered. The first type of loads represents the overpressure resulting from the ignition of vapors in the reservoir itself or from the temperature effects of a burning adjacent object. The second type of loads is related to hydrodynamic pressure of product on shell during earthquake. New engineering method of calculation of shell-to-bottom joint is proposed. The results can be used in normative rules.
The influence of open cracks in compressed area of concrete on behaviour of bending elements of frame buildings under special alternating loads
Authors: Kurnavina S.O. , Tsatsulin I.V. 
Published: January 2020

Abstract
In design of seismic resistant reinforced concrete constructions it is necessary to take into account the influence of plastic strains on stress-strain state and on possibility of appearance of open cracks in compressed area of concrete while the sign change of the load. In order to evaluate the influence of this factor the design of reinforced concrete beams models with regard to elastoplastic diagrams of materials has been carried out. The dependences of residual cracks height, of bearing capacity and of limit value of coefficient of plasticity in the second half-cycle on the maximum coefficient of plasticity in the first half-cycle have been built. The conclusion has been made about the decrease of bearing capacity of bending elements, caused by the development of plastic strains and due to them the presence of open cracks in compressed area of concrete. The limit state criterion has been offered, preventing brittle fracture on following cycles of loading.
Increase of energy performance of residential buildings with enclosing structures made of masonries with application of ceramic blocks
Authors: Bedov A I , Gabitov A I , Salov A S , Biktasheva A R 
Published: January 2020

Abstract
Economy of energy resources in the Russian Federation is currently the urgent national environmental and economic problem as the package of measures providing energy saving has high profitability and environmental safety as compared with energy resources buildup. Therefore, much attention is paid to energy saving for the account of reducing heat loss through the enclosing structures at engineering and construction of residential buildings. Therewith, diverse elements of three-layer wall structures are reducing general reliability thereof at failure probability exposed to various factors. The buildings with the enclosing structures made of hollow porous blocks are slightly behind the three-layer wall structure by specific heat-resistant performance, with the base layer thereof consisting of solid ceramic brick and efficient heat insulation layer. The problem of construction and erection work quality is arising therewith. The heat engineering calculation of monolayer structure made as masonry of 510mm PORIKAM 14.3NF ceramic hollow porous blocks finished on the outside by heat insulation plaster is presented herein. Temperature fields are calculated in Therm 7.4 program. The design diagram for the structure part (cross section of the wall) is being made in the program for this purpose with indication of heat engineering data of the materials and overlaying of boundary conditions in both “inside” and “outside” surfaces. Graphic images of thermal fields and heat transfer are presented by the calculation results. Noncompliance with some regulatory requirements at making construction and erection operations are reviewed and simulated, with the reduced heat transfer resistance of the structures being calculated therewith. Noncompliance with the masonry technology results in increase of heat loss thereby reducing heat efficiency.
Increased carbon uptake and water use efficiency in global semi-arid ecosystems
Authors: Zhang Li , Xiao Jingfeng , Zheng Yi , Li Sinan , Zhou Yu 
Published: January 2020

Abstract
The semi-arid ecosystems dominate the inter-annual variability of the global carbon sink and the driving role of semi-arid ecosystems is becoming increasingly important. However, the impacts of climate change on the dynamics of carbon and water fluxes in global semi-arid ecosystems are still not well understood. We used a data-driven (or machine learning) approach, along with observations from a number of FLUXNET sites and spatially continuous satellite and meteorological data, to generate gridded carbon and water flux estimates for semi-arid regions globally, and then examined the magnitude, spatial patterns, and trends of carbon and water fluxes and their responses to climate change during the period 1982–2015. The average annual gross primary productivity (GPP), net ecosystem productivity (NEP), evapotranspiration (ET), and water use efficiency (WUE) were 628.6 g C m−2 yr−1, 9.6 g C m−2 yr−1, 463.1 mm yr−1, and 1.60 g C Kg−1 H2O, respectively. The climate conditions during the period 1982–2015 enhanced gross and net carbon uptake in global semi-arid regions. The spatially-averaged annual GPP, NEP, ET, and WUE in semi-arid regions showed significant increases both globally and regionally (Asia, Africa, and Australia). As with GPP and ET, WUE significantly increased in North America, Asia, Africa, and Australia. Australia was the most sensitive semi-arid region in terms of changes in carbon and water fluxes and their responses to climate. Semi-arid forests, shrublands, and savannas were net carbon sinks; croplands were minor carbon sources; grasslands were nearly carbon neutral. Overall, precipitation was the most important climate factor influencing the carbon and water fluxes; WUE in 40.9% of the semi-arid region was significantly influenced by precipitation. The global climate change is expected to influence global semi-arid ecosystems in many ways and our findings have implications for semi-arid ecosystem management and policy making.