bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fluorescent styryl chromophores with rigid (pyrazole) donor and rigid (benzothiophenedioxide) acceptor – complete density functional theory (DFT), TDDFT and nonlinear optical study
Authors: Bhalekar Sulochana , Bhagwat Archana , Sekar Nagaiyan 
Published: March 2021

Abstract
Density functional theory (DFT) and time-dependent DFT computations were employed to examine linear and nonlinear optical (NLO) characteristics of (E)-4-((1,1-dioxido-3-oxobenzo[b]thiophen-2(3H)-ylidene) ethyl)-1-phenyl-1H-pyrazol-5(4H)-one derived styryl dyes. NLO properties were computed using the two different global hybrid functionals B3LYP, BHandHLYP and three range separated hybrid functionals CAM B3LYP, wB97, wB97X and wB97XD with the basis sets 6–311++G(d,p), cc-pVDZ and cc-pVTZ. The compounds shows higher values of dipole moment around 8–9 Debye than the other compounds. They show higher values of α
0, ß
0 and γ
0 values. The values of γ
0 are around 204–544 × 10−36 e.s.u. with the method, B3LYP/6–311++G(d, p). We have calculated the mean absolute error (MAE) for dipole moment, α
0, ß
0 and γ
0 values. It is observed that MAE is less (0.89) for wB97/6–311++G(d,p) which indicates that wB97 is the most suited functional for all three compounds. Chemical stability and reactivity of these dyes were studied using electrophilicity index and chemical hardness and hyperhardness.
COVID-19 und soziale Ungleichheit
Authors: Knöchelmann Anja , Richter Matthias 
Published: March 2021

Zusammenfassung
Mit Fortschreiten der Pandemie stellt sich heraus, dass nicht alle Personengruppen gleich von dem Virus betroffen sind. Soziale Ungleichheiten sind sowohl bei dem Infektionsrisiko, der Erkrankungsschwere und den Mortalitätsraten als auch bei den Folgen der Maßnahmen zur Pandemiebekämpfung ersichtlich. Dabei haben sich sozioökonomische Faktoren sowie Alter und Geschlecht als relevant herausgestellt.
Bedeutung und Belastung von Pflegekräften während der Corona-Krise
Authors: Schulze Susanne , Holmberg Christine 
Published: March 2021

Zusammenfassung
Pflegekräften kommt eine zentrale Rolle bei der Bekämpfung der Corona-Pandemie zu, auch da der Erfolg der Eindämmung des Virus maßgeblich davon abhängt, wie gut seine Ausbreitung in diversen Pflegesettings verhindert werden kann. Die Kenntnis über den Belastungszustand und zentrale Belastungsfaktoren von Pflegekräften während der ersten Welle der Corona-Krise kann daher wichtige Erkenntnisse liefern, die die Entlastung dieser systemrelevanten Berufsgruppe ermöglichen.
Wie Verschwörungsglauben die Corona-Pandemiebekämpfung behindert
Authors: Imhoff Roland 
Published: March 2021

Zusammenfassung
Verschwörungsnarrative über die Herkunft oder Harmlosigkeit des auslösenden Coronavirus tauchten in Zusammenhang mit der weltweiten COVID-19 Pandemie auf. Krisen befeuern solche Erzählungen, weil sie Bedürfnisse nach Erklärung, Sicherheit und Kontrolle befriedigen können. Problematisch ist, dass die Zustimmung zu solchen Ideen mit geringer Einhaltung infektionsreduzierender Maßnahmen (Hygiene, Abstand), sowie mit egozentrischer Selbstsorge korreliert.
Infektionsschutz für wohnungslose Menschen in Zeiten von Corona
Authors: Bösing Sabine 
Published: March 2021

Zusammenfassung
Die Corona-Pandemie stellt die Einrichtungen und Dienste der Wohnungslosenhilfe vor große Herausforderungen. Schnelle und sichere Lösungen sind immer wieder gefragt, um für die Menschen Unterstützung anzubieten, die über kein Zuhause verfügen. Die Maßnahmen zum Infektionsschutz stehen immer in Abwägung zu den Empfehlungen der Gesundheitsbehörden und den Möglichkeiten der einzelnen Einrichtungen und Dienste. Trotz kreativer Ideen der Mitarbeitenden sind die Auswirkungen der Beschränkungen auf die Klientinnen und Klienten groß.
Die Pandemie durch SARS-CoV-2/Covid-19 – der Übergang zur chronischen Phase
Authors: Glaeske Gerd 
Published: March 2021

Zusammenfassung
Die enorme Dynamik der Pandemie durch Covid-19 ist nicht zu übersehen, obwohl hinter den steigenden Zahlen auch positive Entwicklungen sichtbar werden wie z.B. die relative Verringerung von schweren Verläufen mit einer hohen Hospitalisierungsrate gegenüber dem Beginn der Pandemie. Das Gleiche gilt für die geringere Auslastung der Intensivstationen und den Rückgang der Sterblichkeit trotz der vorhersehbar absolut steigenden Infektionszahlen ab Oktober 2020. Der Beginn der chronischen Phase ab Mai 2020 wurde aber nicht für die Etablierung wirksamer Präventionsmaßnahmen, insbesondere zum Schutz vulnerabler Gruppen in unserer Gesellschaft genutzt, sodass ein zweiter Lockdown folgen musste, aus Sicht der Politik beschönigend als „Lockdown light“ eingestuft.
Psychische Folgen der COVID-19 Pandemie in der Bevölkerung
Authors: Riedel-Heller Steffi , Richter Dirk 
Published: March 2021

Zusammenfassung
Zu den kurzfristigen psychischen Reaktionen in der Bevölkerung auf die COVID-19- Pandemie zählt ein erhöhtes Maß an Ängstlichkeit, Depressivität und Belastung; jüngere Menschen sind offenbar mehr betroffen. Die Dynamik der psychischen Reaktionen scheint unmittelbar der Infektionsdynamik zu folgen. Längerfristig ist zudem von einer rezessionsbedingten Zunahme psychischer Störungen auszugehen. Die psychische Gesundheit muss ein zentrales Element des Pandemie-Managements sein.
Assessment of the infection dynamics and the disease burden of COVID-19 in Germany
Authors: Lange Berit 
Published: March 2021

Abstract
The last months of the COVID-19 pandemic have shown that implementing informative indicators for infection dynamics, assessing direct and indirect burden of disease and communicating uncertainties of predictions clearly to stakeholders and the public are crucial elements in the pandemic response. To achieve these aims, coordination within the scientific community is crucial to avoid duplication of work and ensure rapid availability of needed models, estimations, and epidemiological studies.
COVID-19-Pandemie – eine sozialmedizinische Betrachtung
Authors: Gostomzyk Johannes 
Published: March 2021

Zusammenfassung
Sozialmedizin, als klinisch-theoretisches Fach, verbindet Erkenntnisse und Methoden aus Medizin und Sozialwissenschaften, auch in Bezug zur COVID-Pandemie. In ambulanten und stationären Versorgungseinrichtungen der angewandten Sozialmedizin sind Ärzte und Vertreter psychosozialer Berufe in der Prävention und der Epidemiologie zur Pandemie tätig. Die Kontaktnachverfolgung ist eine zentrale Aufgabe der Gesundheitsämter. Voraussetzung für eine erfolgreiche Prävention sind Aufklärung der Bevölkerung über Risiken und Möglichkeiten der Vorbeugung einer Covid-19-Erkrankung sowie das Vertrauen in die Arbeit der verantwortlichen Institutionen.
Separation of no-carrier-added 71,72As from 46 MeV alpha particle irradiated gallium oxide target
Authors: Naskar Nabanita , Lahiri Susanta 
Published: March 2021

Abstract
No-carrier-added (NCA) 71,72As radionuclides were produced by irradiating gallium oxide target by 46 MeV α-particles. NCA 71,72As was separated from the target matrix by liquid-liquid extraction (LLX) using trioctyl amine (TOA) and tricaprylmethylammonium chloride (aliquat-336) diluted in cyclohexane. The bulk gallium was quantitatively extracted into the organic phase leaving 71,72As in the aqueous phase. Complete separation was observed at 3 M HCl + 0.1 M TOA and 2 M HCl + 0.01 M aliquat-336.
Electron microscopy investigations on the mineral lorándite (TlAsS2) from Allchar in Macedonia
Authors: Necke Tobias , Trapp Maximilian , Lauterbach Stefan , Amthauer Georg , Kleebe Hans-Joachim 
Published: March 2021

Abstract
In this paper, we report on electron microscopy studies of single crystals of the natural mineral lorándite, TlAsS2. The main focus of this investigation was to address the question as to whether those lorándite crystals are chemically and structurally homogeneous, in order to be utilized as an effective neutrino detector within the lorándite experiment (LOREX) project. Apart from few secondary minerals, being present only at the surface of the lorándite samples, scanning electron microscopy (SEM) indicated homogeneous crystals. Similarly, transmission electron microscopy (TEM) imaging revealed a homogenous and undisturbed crystal structure, with the only exception of local coffee-bean contrasts; however, rarely observed. These specific contrast variations are known to be a typical strain indicator caused by a local deformation of the crystal lattice. Energy-dispersive X-ray spectroscopy (EDS) in conjunction with electron energy-loss spectroscopy (EELS) did not show any significant chemical difference when analysing regions on or off those coffee-bean features, indicating a chemically homogenous mineral. Since the presence of lattice disturbing secondary phase precipitates could be excluded by imaging and complementary chemical analysis, crystal defects such as dislocations and stacking faults or minor fluid inclusions are discussed as the probable origin of this local elastic strain. The experimental results confirm that the studied lorándite single crystals fulfil all structural and chemical requirements to be employed as the natural mineral that allows to determine solar neutrino fluxes. In addition, critical issues regarding the rather challenging sample preparation of lorándite are reported and a quantification of the maximum tolerable electron dose in the TEM is presented, since lorándite was found to be sensitive with respect to electron beam irradiation. Furthermore, the limits of EDS measurements due to peak overlapping are shown and discussed utilizing the case of Pb in lorándite. In this regard, a comparison with the Tl- and Pb-containing natural mineral hutchinsonite, TlPbAs5S9, is also included.
Sistema de Gestión del Conocimiento para la seguridad del paciente y análisis de eventos adversos en IPS, Profesionales Independientes y Transporte Asistencial.
Authors: Alonso Sosa Edison , Duque Montes María Elizabeth , Pasaje Beltrán Lina Paola 
Published: March 2021

El sistema de salud para seguridad del paciente ha evolucionado desde la aplicación de métodos manuales hasta la descripción en bases de datos de las herramientas de apoyo, mostrando la falencia al no contar con un sistema de gestión inteligente que facilite la respuesta oportuna al cliente, por lo anterior, esta investigación desarrolló un Sistema de Gestión del Conocimiento para la seguridad del paciente con el fin de dar solución a los principales problemas en la calidad y atención en la salud por las Entidades Administradoras de Planes de Beneficios –EAPB, las Instituciones Prestadoras de Servicios de Salud, Servicios de Transporte Especial de Pacientes, profesionales independientes, y la interacción dicha información con las Entidades Departamentales, Distritales y Municipales de Salud, Instituto Nacional de Salud y Organismo Técnico de Administración de la Cuenta de Alto Costo. El desarrollo inició con la caracterización de la situación actual a través del método de descripción cuantitativa tecnológico con base en una descripción en cascada, promoviendo el uso de tecnologías digitales en salud, ampliando los sistemas de información sanitaria y recopilando datos de estricta vigilancia. De esta manera, se podría facilitar la notificación de riesgos, eventos adversos y otros indicadores de obligatorio cumplimiento y reporte ante los entes territoriales de salud en Colombia. Contribuyendo al mejoramiento e implementación de prácticas asistenciales seguras a través del seguimiento de los indicadores de gestión de la seguridad y calidad en la atención del paciente y su efectivo análisis de dichos eventos adversos.
Determination of the influence of aluminum phosphate on the properties of quartz ceramics
Authors: Karasik Olena , Kozyreva Tatyana , Dushyn Vladyslav 
Published: March 2021

One of the significant disadvantages of quartz glass-based materials is their tendency to crystallize cristobalite during firing and, as a consequence, a significant deterioration in performance. In order to prevent crystallization of quartz ceramics during sintering, a number of additives are used. However, all known options some disadvantages, namely, relatively low strength values and increased coefficient of linear thermal expansion of products.In this regard, a promising area of research is to study the effect of aluminum phosphate additives on the properties of quartz ceramics. According to the totality of properties, the addition of AlPO4 in an amount of 20 wt % has the most positive effect on the characteristics of quartz ceramics. According to differential thermal analysis, it is noted that up to a temperature of 1,200 °C, no noticeable phase and modification transformations occur in the base mixtures. In the course of the work, it was found that the most appropriate firing mode is as follows: oxidizing medium; the products are immersed in a hot furnace, after being held at the maximum temperature, they are removed from the hot furnace, cooling occurs slowly in the air. The materials obtained in this way are characterized by the following properties: α=31.6·10-7 deg-1; σcomp=153 MPa; P=2.7 %; tgδ and ε (frequency 1010 Hz, temperature 20 °C) 0.001 and 10, respectively. It is noted that the main crystal phase prevailing in the samples is aluminum phosphate. The microstructure of the material is characterized by the presence of a small number of residual pores and a densely sintered shard.The proposed solution will significantly reduce power consumption, improve production performance and increase the basic properties of polyfunctional quartz ceramic products
Improvement of continuous technology of electrochemical synthesis of nickel hydroxide by implementation of solution recycling
Authors: Kovalenko Vadym , Kotok Valerii 
Published: March 2021

Nickel hydroxide is widely used in supercapacitors, alkaline batteries, for the electrocatalytic oxidation of organic contaminants, etc. Due to their electrochemical activity, Ni(OH)2 (α+β) samples with a layer structure synthesized in a slit diaphragm electrolyzer are the most promising. To improve the continuous technology of electrochemical synthesis of nickel hydroxide, the possibility of recycling the spent catholyte containing sodium sulfate was determined. For this, samples of nickel hydroxide were synthesized from a solution of nickel sulfate in the presence of sodium sulfate with concentrations of 40, 60, 80, 100, and 120 g/L. The crystal structure of the samples was studied by X-ray phase analysis; the electrochemical properties were studied by the method of cyclic voltammetry. It was shown that the base sample obtained without the presence of sodium sulfate was a monophase layered (α+β) structure with a high content of α-modification. The crystallinity of the sample was not high. It was revealed that the presence of sodium sulfate led to a decrease in the crystallinity of nickel hydroxide due to an increase in the electrical conductivity of the solution and a decrease in the voltage in the electrolyzer. Cyclic voltramperometry showed that synthesis in a slit diaphragm electrolyzer in the presence of Na2SO4 (40–80 g/L) did not lead to a significant change in the electrochemical activity of nickel hydroxide samples. An increase in the concentration of sodium sulfate in the catholyte to 100–120 g/L led to an increase in electrochemical activity – the specific current of the discharge peak was 3.7–3.9 A/g (compared to 2.1 A/g for the reference sample).A comprehensive analysis of the characteristics of nickel hydroxide samples synthesized in the presence of sodium sulfate revealed the possibility and prospects of recycling the spent catholyte in a continuous technology for producing Ni(OH)2 in a slit diaphragm electrolyzer. It was revealed that when introducing recycling, it was recommended to maintain a high concentration of sodium sulfate (80–100 g/L)
Revealing the effect of catalyst concentration on the process of fuel oil refining using the technology of aerosol nano catalysis
Authors: Leonenko Serhii , Kudryavtsev Sergey , Glikina Irene , Tarasov Vadym , Zolotarova Olena 
Published: March 2021

The primary oil processing product is a mixture of different hydrocarbons. One of the hard-to-process petroleum products is fuel oil. This paper considers a method to derive clear (light) fractions of petroleum products by the catalytic processing of fuel oil on a zeolite-containing catalyst at 1 atm under the technological conditions of aerosol nanocatalysis. The prospect of the catalytic processing of a viscous residue ‒ fuel oil ‒ has been analyzed and estimated. The process is carried out by dispersing the catalytically active component in a vibratory-fluidized layer. Chemical transformation occurs during the constant mechanochemical activation of catalyst particles by forming an aerosol cloud in the reactive volume. Natural zeolite catalyst of the type Y was selected for research. Methods for separating the gasoline and diesel fractions of light hydrocarbons and for analyzing the gas phase have been given. The effect of the concentration of zeolite catalyst aerosol on the composition of cracking products (the yield of the gasoline and diesel fractions of light hydrocarbons) has been studied. It is noted that the rate of the course of fuel oil processing in the aerosol of the catalyst is 1.5‒2 times higher than that in thermal processing. It has been found that in fuel oil processing based on the aerosol nanocatalysis technology, the concentration of the catalyst can be controlled to produce the final product. The study results have shown that the optimal conditions for processing fuel oil in the aerosol of the catalyst should be considered 773 K, a frequency of 5 Hz, a pressure of 1 atm. At the same time, a concentration of the catalyst of 1‒5 g/m3 should be considered optimal for the output of a light fraction of hydrocarbons. In this case, the yield is up to 80 % of the fraction in the laboratory. It was found out that during the processing of fuel oil, the concentration of the catalyst makes it possible to optimize the output of light oil products under the technological conditions of aerosol nanocatalysis
Revealing the effect of rounded noise protection screens with finite sound insulation on an acoustic field around linear sound sources
Authors: Didkovskyi Vitalii , Zaets Vitaly , Kotenko Svetlana 
Published: March 2021

This paper reports studying the reduction of traffic noise by rounded noise protection screens with finite sound insulation, that is, those that can pass sound.
Almost all models of acoustic screens, which are examined by analytical methods, are either direct or such that disregard the passage of sound through the screen, that is, it is assumed that the screen sound insulation is non-finite. This approach made it possible to solve the problem for a simplified model analytically but made it impossible to analyze the required sound insulation of noise protection screens.
In the current paper, the problem of investigating an acoustic field around the screen whose sound insulation is finite has been stated, that is, it was taken into consideration that a sound wave propagates through the body of the screen. In addition, a given problem considers a rounded screen, rather than vertical, which is also used in different countries.
Such a problem was solved by the method of partial domains. This method has made it possible to strictly analytically build a solution to the problem by simplifying it to solving an infinite system of algebraic equations, which was solved by the method of reduction.
The screen model was set by the values of the density and speed of sound in the screen material. This approach has made it possible to change the acoustic impedance of the screen material and thereby change the sound insulation of the screen. That has made it possible to quantify the effect of screen sound insulation on its effectiveness. It has been shown that the efficiency of noise protection screens with finite sound insulation is approaching the efficiency of acoustically rigid screens, provided that the screen's natural sound insulation is 13–15 dB greater than the estimated efficiency of the rigid screen.
The study results could make it possible to more accurately assess the effectiveness of noise protection screens. Determining the screen acoustic efficiency would make it possible to set requirements for its sound insulation characteristics. That could make it possible to select the designs of noise protection screens with minimal physical parameters, such as thickness, weight, etc.
Development of a methodology for the formation and adjustment of the catalog of defense forces capabilities
Authors: Surkov Oleh 
Published: March 2021

The study results have made it possible to devise a methodology for the formation and adjustment of the Defense Forces Capabilities Catalog using cluster analysis and the developed tree-like system of basic indicators characterizing groups and subgroups (clusters). That enables stakeholders to form and adjust the Defense Force Capabilities Catalog with the proper quality, according to the uniform developed algorithm and defined identifiers (features).
The methodology is intended for use by members of the Inter-Departmental Working Group on Defense Review, as well as working groups in the course of a separate review or capacity assessment.
The Defense Force Capabilities Catalog was deconstructed into five levels of hierarchy, each of which contains interdependent typical tasks, organizational structures, and means (systems, complexes).
The procedure is to analyze and clearly cluster individual capabilities of the defense forces according to certain features (requirements, characteristics) to group them and include them in the relevant groups, subgroups, and functional capabilities groups.
A system of the indicators for the formation and adjustment of the Defense Forces Capabilities Catalog has been proposed, as well as a conformity criterion based on the generalized indicator, which defines the level of formation (adjustment) of the Defense Forces Capabilities Catalog.
Seven steps of the procedure have been defined: from identifying individual capabilities based on their description (step 1) to verifying the acceptability of the results obtained (step 7) using the evaluation criterion and specially designed tables.
The methodology was tested during a passive experiment in 2020 on the analysis of the current Defense Forces Capabilities Catalog, which made it possible to identify a series of significant shortcomings in its structure and content.