bluuebunny/crossref_metadata_2025_split huggingface dataset:
The ternary system Sc–Co–In at 870 K: the isothermal section and the crystal structures of the compounds
Authors: Gulay Nataliya L. , Tyvanchuk Yuriy B. , Pöttgen Rainer , Kalychak Yaroslav M. 
Published: August 2022

Abstract
The isothermal section of the Sc–Co–In system at T = 870 K has been constructed using X-ray powder diffraction and SEM/EDX data. At the studied temperature, nine ternary compounds are formed: Sc50Co12.5In3.5 (Ag7+x
Mg24−x
-type structure, space group Fm

3
‾

$\overline{3}$

, a = 17.7411 Å), Sc14Co3.10In2.59 (Lu14Co3In3 type, P42/nmc, a = 8.8913, c = 21.387 Å), Sc6Co2.18In0.82 (Ho6Co2Ga type, Immm, a = 8.867, b = 8.780, c = 9.321 Å), Sc2CoIn (Pt2ZnCd type, P4/mmm, a = 3.2887, c = 7.1642 Å), Sc11Co4In9 (Nd11Pd4In9 type, Cmmm, a = 13.836, b = 20.758, c = 3.351 Å), Sc5Co2In4 (Lu5Ni2In4 type, Pbam, a = 17.3400, b = 7.5940, c = 3.3128 Å), Sc3Co1.64In4 (Lu3Co2−x
In4 type, P

6
‾

$\overline{6}$

, a = 7.6702, c = 3.3595 Å), Sc10Co9In20 (Ho10Ni9In20 type, P4/nmm, a = 12.8331, c = 9.0226 Å), Sc0.5In0.5Co2 (ternary non-centrosymmetric derivative of the Laves phase MgNi2, P63
mc, a = 4.8910, c = 16.0166 Å, with a homogeneity range from 12.3 to 16.7 at% of indium). The cubic phase ScCo4In (MgCu4Sn type, F

4
‾

$\overline{4}$

3m, a = 6.9230(8) Å) is evidently present in the cast samples and disappears after the annealing procedure. A Sc/In substitution was observed for the solid solution Sc1−x
In
x
Co2 (x = 0–0.26) with the structure of the cubic Laves phase (MgCu2 type) and also for the hexagonal Sc0.5In0.5Co2-type phase.
Lu26
T
17–x
In
x
(T = Rh, Ir, Pt) – first indium intermetallics with Sm26Co11Ga6-type structure
Authors: Gulay Nataliya L. , Kösters Jutta , Reimann Maximilian Kai , Kalychak Yaroslav M. , Pöttgen Rainer 
Published: August 2022

Abstract
Several Lu26
T
17−x
In
x
(T = Rh, Ir, Pt) phases with varying x values were obtained by induction-melting reactions of the elements in sealed tantalum ampoules. All samples were characterized through their X-ray powder diffraction patterns. These compounds crystallize with the tetragonal Sm26Co11Ga6-type structure, space group P4/mbm and Z = 2. The structure of Lu26Pt7.55In9.45 has been refined from single-crystal X-ray diffractometer data: a = 1165.32(5), c = 1547.46(6) pm, wR2 = 0.0895, 2173 F
2 values and 70 variables. The Lu26
T
17−x
In
x
phases are the first indium representatives of the Sm26Co11Ga6 type. They belong to the n = 4 members of Parthé’s A
5n+6
B
3n+5 series, which show different stacking sequences of square prisms and antiprisms. Lu26Pt7.55In9.45 as a lutetium-rich intermetallic compound exhibits a broader range of shorter Lu–Lu distances (341–375 pm). Temperature dependent magnetic susceptibility measurements show Pauli paramagnetism for Lu26Ir8.5In8.5 and Lu26Rh7In10 with room temperature values of the magnetic susceptibility of χ = 1.53 × 10−3 emu mol−1 for Lu26Rh7In10 and χ = 6.54 × 10−4 emu mol−1 for Lu26Ir8.5In8.5.
Nemi, demográfiai és nemi egalitarianizmussal kapcsolatos vélekedés szerinti sajátosságok a hosszú távra szóló párválasztással kapcsolatos attitűdökben
Authors: Ocsenás Dorottya , Kovács Judit 
Published: August 2022

Háttér és célkitűzésekA kutatás céljának azt tűztük ki, hogy rámutasson a nemi, demográfiai és egyenlőségelvűséggel kapcsolatos vélekedés szerinti sajátosságokra a hosszú távra szóló párválasztási preferenciákkal kapcsolatos attitűdökben. Kérdéseinket a hagyományos és modern párválasztási preferenciákat magyarázni képes vonatkozó szociálpszichológiai elméletek alapján fogalmaztuk meg. Általánosságban azt vártuk, hogy a mintában a férfiakkal és nőkkel szembeni preferenciák hordoznak modern, de hordoznak hagyományos tartalmakat is. A nőktől, a fiatalabbaktól, az iskolázottabbaktól és a nemek szerepéről inkább egyenlőségelvűen gondolkozóktól azt vártuk, hogy preferenciáikban erősebben tükröződnek modern, mint hagyományos tartalmak.MódszerA mintavétel kényelmi alapon történt. A vizsgálati személyek (N = 534, férfi: 139, nő: 395) online kérdőívet töltöttek ki, amely demográfiai kérdőívből, hosszú távra szóló párkapcsolati választáskor a férfiaktól és nőktől elvárt tulajdonságok értékeléséből és a Beere-féle nemiszerep-egyenlőség kérdőívből állt.EredményekMindkét nem véleménye szerint és mindkét nemmel kapcsolatban a hosszú távú bizalmi kapcsolatban való jó partnerség szempontjából lényeges társas tulajdonságok, mint a megbízhatóság és az őszinteség a legfontosabbak. A preferenciák függetlenek maradtak a többi vizsgált változótól, és a nagyobb tulajdonságcsoportok fontossági sorrendje állandónak bizonyult (nőknél: jó partner nő, házias nő, emancipált nő; férfiaknál: jó partner férfi, férfias férfi, vonzó férfi, házias férfi).KövetkeztetésekA férfiak és nők véleménye hasonló azzal kapcsolatban, hogy a jó hosszú távú párkapcsolathoz elsősorban a jó partnerséghez kötődő tulajdonságok a legfontosabbak, függetlenül attól, hogy férfiról vagy nőről van szó. A preferenciák állandónak nevezhetők, az elvárások sorrendjét a kitöltő neme, az életkora, az egyenlőségelvűséggel kapcsolatos vélekedései, az iskolázottság és a vallásosság nem árnyalja, bár finom hangsúlybeli eltérések a nevezett változók tekintetében azonosíthatók.
Amiodarone that has antibacterial effect against human pathogens may represent a novel catheter lock
Authors: Ittzes Balazs , Szentkiralyi Eva , Szabo Zoltan , Batai Istvan Z. , Gyorffy Ors , Kovacs Tamas , Batai Istvan , Kerenyi Monika 
Published: August 2022

AbstractInfection is one of the most feared hospital-acquired complications. Infusion therapy is frequently administered through a central line. Infusions facilitating bacterial growth may be a source of central line-associated bloodstream infections. On the other hand, medications that kill bacteria may protect against this kind of infection and may be used as a catheter lock.In this study, we examined the impact of amiodarone on bacterial growth. Amiodarone is used for controlling cardiac arrhythmias and can be administered as an infusion for weeks. Standard microbiological methods have been used to study the growth of laboratory strains and clinical isolates of Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae, and multidrug-resistant Acinetobacter baumannii in amiodarone. The minimum inhibitory concentration (MIC) of amiodarone was determined. Bacterial growth from in use amiodarone syringes and giving sets was also investigated.Most examined strains were killed within 1 min in amiodarone. The other strains were killed within 1 h. The MICs of amiodarone were <0.5–32 μg/mL.Amiodarone infusion is unlikely to be responsible for bloodstream infections as contaminating bacteria are killed within 1 h. Amiodarone may also protect against central line infections if used as a catheter lock.
Spa diversity and genetic characterization of t127 methicillin-resistant Staphylococcus aureus in a tertiary Greek hospital
Authors: Tsergouli Katerina , Karampatakis Theodoros , Kontopoulou Konstantina , Pappa Styliani , Kampouridou Parthena , Kallasidou Georgia , Tsioka Katerina , Zotou Sophia , Farmaki Εleftheria - Eugenia , Kotzamanidis Charalampos , Papa Anna 
Published: August 2022

Abstract

Introduction
Methicillin-resistant Staphy
lococcus aureus (MRSA) causes severe community and hospital acquired infections. Identification of staphylococcal cassette chromosome mec (SCCmec), multilocus-sequence typing, and sequencing of S. aureus protein A (spa) gene are used for MRSA typing. The aim was to investigate the spa types of MRSA isolates in a tertiary hospital in Greece and analyse the whole genome sequences of two t127 MRSA isolates.

Methods
Totally, 39 MRSA isolates collected from July 2019 to June 2020 in “Georgios Gennimatas” General Hospital of Thessaloniki, Greece, were included in the study. Identification and antimicrobial susceptibility testing were performed using VITEK II automated system, and spa typing was performed. A minimum spanning tree was used to display the spa type frequencies and the genetic distances among them. Two t127-MRSA isolates (IM-MRSA and PD-MRSA) were selected for WGS.

Results
Six isolates (15.4%) were resistant to mupirocin, 18 (46.2%) to fusidic acid, three (7.7%) to vancomycin and two (5.1%) to teicoplanin. Twenty-two different spa types were detected, with t002, t003, and t422 being the most frequent (5/39, 12.8% each), followed by t1994 (4/39, 10.3%). The isolates presented high genetic diversity and, taking into account the time between hospital admission and sampling, intrahospital spread did not occur. Even the two t127 isolates were assigned to different sequence types, ST9-XII-t127 and ST1-IVa-t127. Plasmids and genes conferring antimicrobial resistance and virulence were also identified.

Conclusions
Various spa types were identified and together with the information about the time between hospital admission and sampling supports polyclonal MRSA spread in the hospital excluding a nosocomial infection. WGS provides a more detailed analysis distinguishing even the isolates belonging to the same spa type.
Structure and microwave dielectric properties of Bi- and Ge-doped calcium molybdate
Authors: Mikhaylovskaya Zoya A. , Buyanova Elena S. , Petrova Sofia A. , Pankrushina Elizaveta A. , Malkin Alexander I. , Korotkov Alexey N. , Knyazev Nikolay S. 
Published: August 2022

The powders of Ca1–2xBi2xMo1–xGexO4 solid solutions weresynthesized by the conventional solid state method and investigated by X–ray powder diffraction and Raman spectroscopy. The Ca1–2xBi2xMo1–xGexO4 compositions crystallize in scheelite structure (sp. gr. I41/a) at 0 x 0.4, but traces of bismuth germanates are detected by scanning electron microscopy. The x = 0.5 composition contains several phases with BiVO4- type structures. Raman spectroscopy detected the deformation of [BO4]2– polyhedra and changes in B–O bond length (B = Mo, Ge). The energy gaps were calculated from the diffuse scattering spectra by the Kubelka-Munk method. Energy gap (Eg) values decrease with x from 3.29 eV to 2.91 eV, probably due to 6s2 electrons of bismuth in the valence band and changes of the conductivity band by electrons of germanium. Such values of Eg can provide photocatalytical activity of powders under UV and visible light. The electrodynamic parameters of the ceramic sample of Ca1–2xBi2xMo1–xGexO4 were measured by the transmission line method. The average permittivity increases with x from ~10 to ~18 which correlates with theoretical ε, Vmol and total polarizability of samples. An increase in the concentration of bismuth and germanium leads to the additional resonant peaks in the spectra of ε, S11 and S21. These resonant peaks can be probably caused by the appearance of irregular structural domains of Bi atoms or induced by the increased size of grains in the ceramic samples.
Introducing our new Editorial Board Members
Authors: Medvedev Dmitry A. 
Published: August 2022

The Chimica Techno Acta (CTA) journal was established in 2014. Since then, CTA has grown into a recognized platform for reporting recent advances in engineering chemistry. We would like to express our deep appreciation to all our authors, reviewers and readers, whose valuable participation has contributed greatly to the current level of CTA.One year ago, in a desire to further enhance the journal’s visibility and impact, a number of important changes were initiated, such as visual redesigning of the journal’s website, updating editorial policies and clarifying the Aims Scope. More importantly, we undertook a step towards expanding our Editorial Board team. As a result of this initiative, we are glad to welcome Prof. Ekaterina Kozlova from the Boreskov Institute of Catalysis and Dr. Farid Orudzhev from the Immanuel Kant Baltic Federal University as our new Editorial Board Members.
Seismic Interferometry Applied to Wind Farm and Other Anthropogenic Noise Sources
Authors: Spangler Mitchell A. , Nowack Robert L. 
Published: August 2022

Abstract
Seismic noise from anthropogenic sources is investigated using data from the Autocorr Seismic Array located in the midwestern United States. The array has a linear component that extends about 29 km from north to south and a spiral subarray component to the south with a diameter of about 10 km. A motivation of the study is to identify the dominant sources of the anthropogenic noise in the area. The northernmost seismic stations of the array are located within the southern end of a large wind farm. To the south of the array, there are regularly occurring east–west running trains. However, even during times when trains are present, the frequency signatures of the wind turbines are dominant over much of the array. Because the spectral signatures do not vary for stations with differing basement depths, they are inferred to be from source effects. The interferometric results show clear south-propagating waves traveling at the Rayleigh speed inferred to be from the wind farm to the north of the array for moderate-to-large wind speeds. For lower wind speeds, less coherent signals are observed in the one-hour noise correlations, and some north-propagating waves are also present. Both north- and south-propagating waves are observed in the interferometric results for seismic stations within the wind farm. For seismic stations to the south of the wind farm, mostly south-propagating waves are observed, which are inferred to be coming from the wind farm. Using the spiral subarray, beamforming results show dominant energy from the north of the array in the direction of the wind farm for moderate-to-high wind speeds. For lower wind speeds, seismic energy from the north is no longer dominant, and seismic energy from the south and east of the array also occur.
The San Salvador earthquake of 10 October 1986 and its historical context
Authors: Harlow David H. , White Randall A. , Rymer Michael J. , Alvarez G. Salvador 
Published: August 2022

AbstractThe San Salvador earthquake of 10 October 1986 resulted in 1500 deaths, 10,000 injuries, and 100,000 people left homeless. The earthquake has a surface-wave magnitude (MS) of 5.4, and using strong-motion data, we estimate a moment magnitude (M6−) of 5.7. Focal mechanisms and aftershock distributions from locally recorded seismic data indicate that the earthquake was caused by near-surface, left-lateral slip on a N25°E-trending fault located directly beneath the city of San Salvador. Although strong ground motion lasted for only 3 to 5 sec, horizontal ground accelerations of up to 0.72 g were recorded. Seismic amplification by a surficial layer of low-velocity ash may have increased ground accelerations and thereby contributed to damage of adobe as well as engineered structures that seems excessive for such an earthquake magnitude. Since 1700 the city has been severely damaged at least nine times by similar moderate magnitude shallow-focus earthquakes. Such earthquakes are common along the heavily populated Central American volcanic chain and pose a major seismic hazard to numerous cities and towns that share a geologic setting similar to that of San Salvador.
Routine fault plane solutions for local networks: A test with synthetic data
Authors: Rögnvaldsson Sigurdur Th. , Slunga Ragnar 
Published: August 2022

Abstract
For local networks aimed at analysis of microseismicity, the classic method for focal mechanism determination by use of first motion directions can be of limited value because often very few clear first motions are observed. A number of alternative methods making use of amplitudes have been proposed.
The radiated far field, low-frequency spectral amplitudes of body waves depend on the seismic moment and orientation of the earthquake source. This can be used to obtain fault plane solutions from amplitude observations. The observed spectral amplitudes are corrected for the free surface effect, attenuation, instrument response and geometrical spreading. Searching over the entire parameter space for strike, dip and rake, the source orientations that satisfy the polarity observations and give “sufficiently” small least squares misfits between observed and predicted amplitudes are accepted as possible focal mechanisms for the earthquake.
The reflectivity method was used to generate synthetic seismograms for earthquake sources within a local network in Iceland. The amplitude inversion algorithm was applied to the synthetic seismograms. Inverting noise free amplitudes at eight stations, the solutions obtained deviate less than 10° from the correct mechanism in all source angles for all mechanisms tested. Adding noise and scaling the synthetic data to simulate events of varying magnitude indicates that the method gives fault plane solutions for local events down to magnitude ML = 0.5 correct to within ± 15° in all three source angles.
C-reactive protein as an indicator of polymorbidity in patients with arterial hypertension
Authors: Sevostyanova E. V. , Nikolaev Yu. A. , Mitrofanov I. M. , Polyakov V. Ya. 
Published: August 2022

Aim of the study was to investigate the role of C-reactive protein as an indicator of multimorbidity in patients with arterial hypertension.Material and methods. A retrospective archival study of the data of 1958 patients with arterial hypertension who were examined and treated at the clinic of the Federal Research Center for Fundamental and Translational Medicine (Novosibirsk) was carried out. 2 groups of patients were allocated depending on the concentration of C-reactive protein in the blood serum: normal and elevated (> 5 mg/l). A comparative analysis of the severity of polymorbidity, as well as clinical, laboratory and biochemical parameters in the selected groups were carried out.Results. It has been established that patients with arterial hypertension with elevated values of C-reactive protein had higher rates of transnosological and transsystemic polymorbidity, accompanied by changes in lipid, carbohydrate and purine metabolism (a decrease in high-density lipoprotein cholesterol, an increase in the concentration of glucose and uric acid in blood serum, an increase in the index atherogenicity), as well as an increase in the content of fibrinogen in the blood serum.Conclusions. The concentration of C-reactive protein in the blood serum can serve as a biochemical marker of polymorbidity in patients with arterial hypertension.
ПОВЫШЕНИЕ ЭФФЕКТИВНОСТИ ЭКСПЛУАТАЦИИ СКВАЖИН С ПОМОЩЬЮ ИНСТРУМЕНТОВ ИНТЕГРИРОВАННОГО МОДЕЛИРОВАНИЯ
Authors: Жигалов Денис Николаевич , Поплыгин Владимир Валерьевич 
Published: August 2022

Актуальность работы заключается в необходимости комплексного анализа нефтяного актива как в текущем состоянии, так и на прогнозном горизонте. Это позволит наиболее эффективно производить эксплуатацию фонда скважин на месторождении с учетом изменения технологических параметров пласта. Цель: определить сроки окончания фонтанирования скважин и по возможности предложить мероприятия для продления их работы на естественном режиме эксплуатации; подобрать необходимое глубинно-насосное оборудование для дальнейшей механизированной эксплуатации скважин добывающего фонда; произвести анализ чувствительности для подобранного оборудования.Объекты: нефтяное месторождение, находящееся на первой стадии разработки; цифровые модели системы сбора, системы поддержания пластового давления, добывающих и нагнетательных скважин, пласта, построенного методом материального баланса. Объединяя данные модели, авторы получили интегрированную модель месторождения, которая используется для операционных и стратегических расчетов. Методы: инструменты интегрированного моделирования, позволяющие комплексно оценить проводимые расчеты. Данная методика расчетов позволяет учесть ограничения как со стороны наземной инфраструктуры месторождения, так и со стороны пласта. Также проводятся оптимизационные расчеты, позволяющие продлить срок эксплуатации скважин на естественном режиме. Разработан подход подбора глубинно-насосного оборудования, учитывающий динамику изменения технологических показателей. Описана методика проведения анализа чувствительности для подобранного глубинно-насосного оборудования. Результаты. Выполнен прогнозный расчет, выявлены скважины, которые в ближайшей перспективе прекратят работу на естественном режиме эксплуатации. С помощью многовариантных оптимизационных расчетов предложены мероприятия, позволяющие продлить срок фонтанирования скважин. Также подобрано глубинно-насосное оборудование для таких скважин. Для предложенных мероприятий выполнен технико-экономический анализ.
ИССЛЕДОВАНИЕ ТЕМПЕРАТУРНОГО ПОЛЯ В СКВАЖИНЕ ПЕРЕМЕННОГО ДИАМЕТРА ПОСЛЕ ПРОМЫВКИ
Authors: Акчурин Руслан Зуфарович , Рюков Рамиль Ирекович , Вахитова Гузель Ринатовна , Рамазанов Айрат Шайхуллинович 
Published: August 2022

Актуальность. В настоящее время не существует общепринятых методов, которые позволяют определить равновесную температуру горных пород по данным термометрии в вышедших из бурения скважинах. Во время бурения скважины естественное распределение температуры в породах вокруг скважины существенно изменяется и требуется значительное время для его восстановления в период простоя. Данный процесс может длиться до нескольких месяцев и даже больше в глубоких скважинах, поэтому естественную температуру горных пород можно непосредственно измерить только в течение длительного времени в бездействующих скважинах. Моделирование процесса восстановления температуры в скважинах после завершения бурения – единственная возможность спрогнозировать невозмущенную температуру пород, необходимую для определения равновесного градиента температуры и плотности теплового потока, чтобы предоставить необходимые исходные данные для бассейнового моделирования. Объект: бурящиеся скважины и скважины, в которых проводится предварительная промывка перед температурными исследованиями. Диметр скважины после бурения изменяется из-за наличия каверн, что также сказывается на распределении температуры и после обсадки скважины, т. к. в этих интервалах увеличен объем закачанного цемента.Цель: определение температурного нарушения в зоне с измененным диаметром скважины вследствие образования каверн, а также влияния цементного кольца на температурное поле в данных интервалах.Результаты. Исследовано влияние размеров каверны (высоты и глубины) на формирование температурного поля в скважине. Разработана математическая модель, описывающая движение промывочной жидкости в скважине, учитывающая изменение диаметра. Результаты расчетов сравниваются с распределением температуры без учета изменения диаметра скважины по глубине. Показано, что температурное поле напротив интервалов каверн достаточно сильно нарушено в необсаженной скважине. Установлено, что при увеличении расхода промывочной жидкости поле температуры сильнее всего нарушено напротив подошвы интервала каверны.