bluuebunny/crossref_metadata_2025_split huggingface dataset:
On fractional logarithmic Schrödinger equations
Authors: Li Qi , Peng Shuangjie , Shuai Wei 
Published: March 2022

Abstract
We study the following fractional logarithmic Schrödinger equation:

(

−
Δ

)

s

u
+
V

(

x

)

u
=
u
log

u

2

,

x
∈

R

N

,

{\left(-\Delta )}^{s}u+V\left(x)u=u\log {u}^{2},\hspace{1em}x\in {{\mathbb{R}}}^{N},

where

N
≥
1

N\ge 1

,

(

−
Δ

)

s

{\left(-\Delta )}^{s}

denotes the fractional Laplace operator,

0
<
s
<
1

0\lt s\lt 1

and

V

(

x

)

∈
C

(

R

N

)

V\left(x)\in {\mathcal{C}}\left({{\mathbb{R}}}^{N})

. Under different assumptions on the potential

V

(

x

)

V\left(x)

, we prove the existence of positive ground state solution and least energy sign-changing solution for the equation. It is known that the corresponding variational functional is not well defined in

H

s

(

R

N

)

{H}^{s}\left({{\mathbb{R}}}^{N})

, and inspired by Cazenave (Stable solutions of the logarithmic Schrödinger equation, Nonlinear Anal. 7 (1983), 1127–1140), we first prove that the variational functional is well defined in a subspace of

H

s

(

R

N

)

{H}^{s}\left({{\mathbb{R}}}^{N})

. Then, by using minimization method and Lions’ concentration-compactness principle, we prove that the existence results.
Polarimetric 360° absolute rotary encoder
Authors: Johnson Mark 
Published: March 2022

Abstract
Encoders of angle based on rotating polarizers suffer from 180° ambiguity due to their inherent twofold rotational symmetry. This restricts their applications in motor and machine controls. We show that the ambiguity can be resolved through a geometrical mapping from a plane to a conical surface. Seen from the local surface normal, one full rotation of the cone gives one half rotation of the polarizer axis. With appropriate transmission or reflective optics and multiphase detection, we build high resolution, moderate accuracy, absolute-angle encoders without 180° ambiguity. Polymer birefringent retarders can be used similarly.
Investigation of the adhesive strength in a combined compaction and back-injection process to produce back-injected self-reinforced composites (SRCs)
Authors: Jakob Fabian , Gothe Marcel , Gansiniec Fabian , Heim Hans-Peter 
Published: March 2022

Abstract
This publication investigates the adhesion between an injection molded component and a self-reinforced composite (SRC) produced in a combined compaction and back-injection process to produce back-injected self-reinforced composites. To study the influence of the process, the parameters barrel temperature, time of injection, and tool temperature were varied. In addition, samples were taken at different positions along the flow path. In light of the orthotropic material behavior of SRCs, investigations were conducted to see whether different loading cases lead to different mechanical behavior. Shear-off and pull-off tests revealed a different strength as a function of the loading type. In the shear-off tests, a mean strength of 11.37 MPa was recorded over the entire test series, while the measured mean strength in the pull-off tests is considerably lower, 4.04 MPa. The type of failure is determined with the aid of SEM images, and the influence of the microstructure of the thermoplastic fibre materials on the adhesion is set out. It is shown that, as of a sufficiently high level of adhesion, failure occurs within the fibres.
Determination of Sigma metric based on various TEa sources for CBC parameters: the need for Sigma metrics harmonization
Authors: Ozdemir Seyda , Ucar Fatma 
Published: March 2022

Abstract

Objectives
The application of Sigma metrics can be used for assessing the performance of diagnostic laboratories. Clinical laboratories are confronted with the trouble of having to select the best and suitable quality specifications that are required for quality planning. In this regard, our study aims at evaluating the performance of Sysmex XN-1000 hematology analyzer by using Sigma metrics based on different total allowable error (TEa) source and to determine the effects of these variations in Sigma metric evaluation.

Methods
Five TEa requirements were selected to calculate Sigma metrics of 11 complete blood count (CBC) parameters. Coefficient of variation (CV) and bias data were supplied from internal quality control (IQC) and External Quality Assessment Scheme (EQAS) respectively.

Results
According to TEa based on desirable biological variation (BV) database specifications, the highest Sigma value was achieved by white blood cell count for each level, the lowest value was achieved by Red Cell Distribution Width-Standard Deviation parameter. The Sigma calculation based on Spanish TEa showed that seven CBC parameter achieved Sigma value ≥3.

Conclusions
According to the results of the study, it can be concluded that Sigma scores have a significant fluctuation based on which TEa sources are utilized and the need for Sigma metrics harmonization and standardization is highlighted. Additionally, low Sigma values of most CBC parameters are resulted in the conclusion that the use of performance goals depending on BV data is difficult for common clinical use. Therefore, clear standardized criteria are quite necessary for the selection of TEa goal by laboratories.
Decreased expression of miR-195 mediated by hypermethylation promotes osteosarcoma
Authors: Sun Tianhao , Liu Dongning , Wu Jun , Lu William W. , Zhao Xiaoli , Wong Tak Man , Liu Zhi-Li 
Published: March 2022

Abstract
Osteosarcoma (OS) is the most common type of primary malignant bone tumor. The early lung metastasis of osteosarcoma is one of the main factors of poor prognosis. Therefore, searching for new targets and new mechanisms of osteosarcoma metastasis is essential for the prevention and treatment of osteosarcoma. Our previous studies suggested that fatty acid synthase (FASN) was an oncogene and promoted osteosarcoma. In addition, it is reported that the expression of miR-195 was negatively correlated with osteosarcoma. Aberrant DNA methylation can reversely regulate the expression of miRNAs. However, whether miR-195 could target FASN in osteosarcoma and whether ectopic DNA methylation is the upstream regulatory mechanism of miR-195 in metastasis of osteosarcoma are not fully studied. The expressions were detected by qPCR and western blot, and methylation level was determined by methylation-specific PCR. Luciferase reporter assay, MTT, wound healing, and Transwell assay were used. We found that the expression of miR-195 was low in osteosarcoma. The methylation of miR-195 was high. miR-195 targeted and decreased the expression of FASN. In osteosarcoma, miR-195 inhibited cell proliferation, cell migration, and invasion. The methylation of miR-195 was related to decreased miR-195, it might promote osteosarcoma.
Thermally induced hex-graphene transitions in 2D carbon crystals
Authors: Fu Ran , Xu Yihua , Liu Yisi , Lin Yanwen , Xu Ke , Chang Yuanhao , Fu Yuequn , Zhang Zhisen , Wu Jianyang 
Published: March 2022

Abstract
Resourceful beyond-graphene two-dimensional (2D) carbon crystals have been proposed/synthesized; however, the fundamental knowledge of their melting thermodynamics remains lacking. Here, the structural and thermodynamic properties of nine contemporary 2D carbon crystals upon heating are investigated using first-principle-based ReaxFF molecular dynamics simulations. Those 2D carbon crystals show distinct evolution of energetic and Lindemann index that distinguish their thermal stabilities. There are two or three critical temperatures at which structural transformation occurs for non-hexagon-contained 2D carbon allotropes. Analysis of polygons reveals that non-hexagon-contained 2D carbon crystals show thermally induced hex-graphene transitions via mechanisms such as bond rotations, dissociation, and reformation of bonds. The study provides new insights into the thermodynamics and pyrolysis chemistry of 2D carbon materials, as well as structural transitions, which is of great importance in the synthesis and application of 2D materials in high-temperature processing and environment.
Ökonomische Bildung in der Schule als Politikum – zur Geschichte und Situation einer umstrittenen Selbstverständlichkeit
Authors: Retzmann Thomas , Seeber Günther 
Published: March 2022

Zusammenfassung
Ökonomische Bildung in der Schule ist ein lohnendes Feld für wirtschaftsdidaktische Analysen, wie sie seit fünf Jahrzehnten unternommen werden. Curriculare Konstrukte und Zielsetzungen können die oftmals prekäre Situation in den allgemeinbildenden Schulen nach Ansicht von Thomas Retzmann und Günther Seeber aber nur dann entscheidend verbessern, wenn die Landespolitik die notwendige Bildungsinfrastruktur einschließlich der Lehrkräftebildung schafft, wie sie für etablierte Fächer selbstverständlich ist. Anläufe dazu gebe es immer wieder. Jedoch gelinge es Akteuren, deren Interessen am Status quo hängen, die ökonomische Bildung in der Öffentlichkeit zu diskreditieren, sie als umstrittenes Politikum zu perpetuieren und Gegenkräfte erfolgreich zu mobilisieren. Um diesen Prozess zu beleuchten, rekonstruieren die Autoren, beide ehemalige Vorsitzende der Deutschen Gesellschaft für ökonomische Bildung (DeGöB), Meilensteine der jüngeren Geschichte der ökonomischen Bildung in der Schule. Sie skizzieren die derzeitige Situation und nehmen dafür zwei Bundesländer als Beispiel. Dabei erörtern sie sowohl die Argumente von Befürwortern als auch die Einwände von Gegnern.
Score-driven location plus scale models: asymptotic theory and an application to forecasting Dow Jones volatility
Authors: Blazsek Szabolcs , Escribano Alvaro , Licht Adrian 
Published: March 2022

Abstract
We present the Beta-t-QVAR (quasi-vector autoregression) model for the joint modelling of score-driven location plus scale of strictly stationary and ergodic variables. Beta-t-QVAR is an extension of Beta-t-EGARCH (exponential generalized autoregressive conditional heteroscedasticity) and Beta-t-EGARCH-M (Beta-t-EGARCH-in-mean). We prove the asymptotic properties of the maximum likelihood (ML) estimator for correctly specified Beta-t-QVAR models. We use Dow Jones Industrial Average (DJIA) data for the period of 1985–2020. We find that the volatility forecasting accuracy of Beta-t-QVAR is superior to the volatility forecasting accuracies of Beta-t-EGARCH, Beta-t-EGARCH-M, A-PARCH (asymmetric power ARCH), and GARCH for the period of 2010–2020.
Der Judaskuss der Malerei: Caravaggios Dubliner Gefangennahme Christi in neuer Deutung
Authors: Müller Jürgen 
Published: March 2022

Abstract
How do you conceal politically critical thinking in papal Rome around 1600? Caravaggio’s Taking of Christ isn’t quite what it seems once its subversive meaning is deciphered. The painter places himself among the traitors by holding the lantern, or rather the brush. This self-portrait, I will argue, shows his critical position toward the potential of painting itself. My essay thus proposes a new reading: In the light of a new pictorial source as well as new textual material, Caravaggio appears as an artist highly sceptical of the Catholic cult of images, indeed as a painter who delivers something of a self-referential accusation of painting.
Age-Related Enhancements in Positive Emotionality across The Life Span: Structural Equation Modeling of Brain and Behavior
Authors: Stretton Jason , Schweizer Susanne , Dalgleish Tim 
Published: March 2022

Aging is associated with a bias in attention and memories toward positive and away from negative emotional content. In addition, emotion regulation appears to improve with age, despite concomitant widespread cognitive decline coupled with gray matter volume loss in cortical and subcortical regions thought to subserve emotion regulation. Here, we address this emotion-aging paradox using the behavioral data of an emotion regulation task from a population-derived, male and female, human sample (CamCAN) and use structural equation modeling together with multivariate analysis of structural MRI images of the same sample to investigate brain–behavior relationships. In a series of measurement models, we show the relationship between age and emotionality is best explained by a four-factor model, compared with single and hierarchical factor models. These four latent factors are interpreted as Basal Negative Affect, Positive Reactivity, Negative Reactivity and Positive Regulation (upregulating positive emotion to negative content). Increasing age uniquely contributes to increased Basal Negative Affect, Positive Reactivity, and Positive Regulation, but not Negative Reactivity. Furthermore, we show gray matter volumes, namely in the bilateral frontal operculum, medial frontal gyrus, bilateral hippocampal complex, bilateral middle temporal gyri, and bilateral angular gyrus, are distinctly related to these four latent factors. Finally, we show that a subset of these brain–behavior relationships remain significant when accounting for age and demographic data. Our results support the notion of an age-related increase in positivity and are interpreted in the context of the socioemotional selectivity theory of improved emotion regulation in older age.SIGNIFICANCE STATEMENTAging is associated with a paradoxical increase in well-being and improved emotion regulation despite widespread cognitive decline and gray matter volume loss in neural regions that underlie emotion regulation. Using a population-derived sample, we test the theories behind this emotion/aging paradox with an emotion regulation task and structural MRI data. We report robust age-related increases in positivity across the life span and show structural neural integrity influences this relationship with increasing age. Several brain–behavior relationships remained unaffected by age and may represent empirically derived neural markers to explore the paradox of increased well-being in old age. The results support the predictions of socioemotional selectivity theory of improved emotion regulation in older age and challenge the amygdala-focused neural predictions of the aging brain model.
La argumentación lingüística, una guía para el estudio del alargamiento vocálico en aimara
Authors: Huayhua Pari Felipe 
Published: March 2022

En el presente trabajo presentamos el alargamiento vocálico dentro del marco de estado metodológico de la argumentación gramatical según Botha (1970).
De una veintena de isoglosas que separa el aimara del norte (Umasuyu) del aimara del sur (Orcosuyo), el alargamiento es una de las isoglosas más representativas. Por su naturaleza el alargamiento no es un fonema sino el producto de cinco factores a tomar en cuenta: 1) elisión de consonantes continuas entre vocales iguales y diferentes, 2) alargamiento en grupo de consonantes internas, 3) alargamiento en sufijos con dichas consonantes, 4) alargamiento en palabras compuestas y 5) el reanálisis como falso alargamiento.
Los problemas de reexpresión en la traducción hacia la lengua materna
Authors: Terry Sáenz Regina 
Published: March 2022

La reexpresión es la etapa en la que se reescribe el texto original en la lengua de llegada. Se trata de una operación textual y un proceso cognitivo que exige del traductor una gran capacidad generativa en su lengua materna. Cualquier desfase operacional entre competencia y actuación o un desarrollo fragmentado de los saberes lingüísticos (elocutivo, idiomático y expresivo) ocasionan problemas durante la reexpresión. El propósito de este estudio es identificar, caracterizar y explicar las causas de los problemas de reexpresión en la traducción que se originan en la lengua materna del alumno de traducción.
Contemporary Latvian Design in Symbiosis with Local Handicraft Tradition
Authors: Sirica Inese 
Published: March 2022

AbstractThe contemporary musealization of Latvian design objects or the inclusion of high-quality examples in the Latvian National Museum Holdings began in 2005. Established three years later in 2008, the Latvian Design of the Year Award has since then attracted attention to this field, prompting further theoretical discourse. The publicly available narrative on 21st century Latvian design often points out the strong influence of local crafts and ethnic cultural heritage. An important impetus in contemporary, ethnically conscious design is the culture of the Song and Dance Celebration, within which the outfits of festival participants are created. This article identifies the application of traditional Latvian crafts in the works of Latvian artists and designers, visualizing the ideas and forms of ethnic identity. The analysis focuses on the general context of Latvian design: institutions supported by the Ministry of Culture, the Latvian Design of the Year Award and FOLD, the digital magazine of creative industries. Sources used include opinion articles and the public messages of companies. To facilitate theoretical understanding of the topic, it was important to take into account the theory of national identity and the museum narrative as well as the history of European design, especially at the turn of the 20th/21st centuries. It should be noted that the history of applied art and design in Latvia during the 20th century is still in the research stage. A historical insight into the construction of the Latvian traditional craft narrative, which began at the end of the 19th century, is also provided so as to promote greater comprehension of Latvian design. Essentially, it is a narrative of national identity, deliberately constructed through the craft practices, raw materials and compositional techniques characteristic of peasant culture.
The security of energy supply in the 21st century
Authors: Horváth Ákos , Gadó János 
Published: March 2022

Summary. The European goal to achieve climate neutrality by 2050 has
serious implications for our energy system. All studied scenarios in the frame
of this roadmap include a contribution of the nuclear energy in various ranges
(up to 21%) depending on several hypotheses. In order to attract leading edge
technology development into the Central European region and to share the common
responsibility of EU member states in achieving sustainable energy production
and contributing to the fight against climate change, the idea emerged that the
Czech Republic, Hungary, Poland and Slovakia could host a major European nuclear
facility as part of R&D efforts aiming at the development of the next
generation of nuclear reactors. The paper introduces the ALLEGRO project and the
international collaboration organized for developing the scientific and legal
background for the licensing of a fourth generation nuclear reactor
demonstrator.
Összefoglalás. A 2050-re kitűzött klímacélok elérése érdekében az
európai országok csökkenteni fogják a fosszilis tüzelőanyagok felhasználását, és
a megújuló energiaforrások növekvő felhasználása mellett a
nukleárisenergia-termelésre is támaszkodni fognak. A jövő
nukleárisenergia-termelésének meg kell oldania hosszú távon a friss üzemanyag
utánpótlását, és a kiégett üzemanyag elhelyezését, illetve újrafelhasználását.
Az évszázad második felében várható azoknak a negyedik generációs gyorsreaktor
típusoknak a megjelenése, amelyek képesek az üzemanyag takarékos felhasználását
évszázadokig biztosítani. A visegrádi országok nukleáris kutatóintézetei között
indult tudományos együttműködés a 2010-es években azt a célt tűzte ki, hogy egy
negyedik generációs gázhűtésű gyorsreaktor demonstrátor berendezést (ALLEGRO)
építsenek a régióban. A reaktor megvalósításához szükséges tevékenységek
összehangolása érdekében 2013-ban megalapították a V4G4 Kiválósági Központot. Az
ALLEGRO demonstrátor fejlesztése során megoldott technikai kérdéseken túl
megoldandó kérdés maradt a megfelelő szervezeti struktúra kialakítása, amely
kielégíti a jogi követelményeket, ugyanakkor biztosítja az európai nukleáris
ipari vállalatok versenyképességét.
Participação pública em saúde e Covid-19 em Portugal
Authors: Matos Ana Raquel , Craveiro Isabel 
Published: March 2022

Nas últimas décadas, o tema da participação pública em processos de decisão tem estado presente nas agendas políticas, com mais ou menos centralidade, em vários contextos democráticos do mundo. No campo da saúde, a participação pública apresenta-se como estratégia política com potencialidades para garantir maior corresponsabilização entre os atores envolvidos e para incrementar a transparência dos serviços, sendo enfatizada como boa prática que deve ser implementada em prol da qualidade das decisões, mas também de decisões que sejam orientadas para os reais problemas das populações. A pandemia COVID-19 trouxe pressões adicionais aos sistemas de saúde, constituindo-se como contexto propício à análise da participação cidadã nos processos de decisão que enquadram problemas de saúde na sua relação com a pandemia. Este ensaio apresenta uma análise exploratória sobre a evolução das práticas de participação cidadã nas políticas de saúde em Portugal, destacando alguns dos seus desafios atuais e futuros. Procura-se, assim, compreender como a pandemia teve ressonância na forma como a participação em saúde vinha decorrendo no país, aferindo se, num período global de crise com características singulares, a pandemia enquanto problema coletivo distendeu ou contraiu estas práticas participativas.
Psicoterapia para la regulación emocional desde un enfoque transdiagnóstico: revisión de ensayos clínicos aleatorizados
Authors: Vizioli Nicolás Alejandro 
Published: March 2022

Introducción: La regulación emocional (RE) refiere a los procesos por los cuales los individuos influyen en las emociones que tienen, cuando las tienen y cómo las experimentan y expresan (Gross, 1998). El uso de estrategias desadaptativas de RE se asocia con distintos cuadros psicopatológicos. La concepción de RE como proceso transdiagnóstico permite sortear el problema de la comorbilidad, y ha sido abordado desde distintos modelos e investigaciones.
Objetivo: El presente estudio se propone realizar una revisión de ensayos clínicos aleatorizados de psicoterapia para la RE desde una perspectiva transdiagnóstica.
Método: Para ello se realizó una búsqueda en las bases de datos PubMed, SciELO, Redalyc y ScienceDirect.
Resultados: Se hallaron 11 artículos que cumplían los criterios de inclusión. Los resultados mostraron que las intervenciones transdiagnósticas obtuvieron mejores resultados que grupos control, que incluyeron otros tratamientos o listas de espera.
Conclusión: Se señala la importancia de realizar más ensayos clínicos aleatorizados que comparen nuevas intervenciones con tratamientos de primera línea.