bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimization of a lightweight mirror with reduced sensitivity to the mount location
Authors: Jiang Ping , Zhou Pingwei
Published: March 2020

Due to optical performance requirements, the primary mirror assembly must be unaffected by environmental influences. These environmental influences include gravity, axial assembly error, flatness error of mounting interface, and thermal change, which can degrade the mirror surface’s accuracy. The flexure mounts can be used to isolate the load transfers to the mirror in case of a flatness error and thermal change. The mirror surface’s accuracy will degenerate significantly when the flexure mounts have deviations from the optimum axial mount location due to mirror fabrication and a testing error at the center of gravity. These two error terms introduce an accuracy of mount locations on the order of millimeters. In this paper, we describe a method to reduce the sensitivity of a lightweight mirror to the mount location. First, we introduce a design criterion that determines the sensitivity. Then, the topology and parametric optimization are used to specify selective reinforcement of the mirror structure in which the design criterion is taken as the objective function. With our method, the lightweight ratio of a 2 m mirror has been improved from 86.8% to 88.5%, and its sensitivity to the mount location has been reduced from

1

n
m

/

±

1

m
m

to

0.6

n
m

/

±

1

m
m

.
Abundância comunicativa, escassez da política? Desafios à democracia na era do monitoramento
Authors: Veloso Lucas Henrique Nigri , Marques Ângela Cristina Salgueiro , Mendonça Ricardo Fabrino
Published: March 2020

O artigo apresenta uma reflexão teórico-analítica acerca de relações estabelecidas entre democracias ocidentais, era de abundância comunicativa e contemporâneos modos de sociabilidade política. Se por um lado processos globais de democratização da informação e proliferação de instituições e mecanismos de monitoramento político nos permitem afirmar sobre um “empoderamento” do demos e consequente vitalidade das democracias ocidentais, por outro atestamos que uma possível hipertrofia ou monopólio da prática política monitória também pode produzir efeitos adversos às próprias democracias, como retorno de populismos totalitários. A partir do desenvolvimento de tal panorama, apresentamos por fim uma reflexão ética que, com especial ênfase aos campos da comunicação social e jornalismo, nos convoca ao cultivo de significantes, práticas e potências políticas outras para além do monitoramento; sobretudo aquelas  que visam a produção de “comuns” outros mais igualitários, mais democráticos.
Urgent Prevention of Corona Virus Disease 2019 (COVID-19): Chinese Eating and Mask-Wearing Cultures
Authors: Cheng Kang , Cheng Vivien , Zou Yang , Zou Changhua
Published: March 2020

Chinese people have a very good mask-wearing culture; it is normal to wear masks to protect their faces from wind and pollution. Thus, they easily accept the wearing of masks to prevent infectious diseases, as seen with the Corona Virus Disease 2019 (COVID-19) in China today. However, Chinese people have a dangerous eating culture: they share foods or soups from the same bowls and pots using their personal chopsticks/spoons and emphasize loud talking when eating at banquets or at homes. We think this eating culture has raised the infection risk of COVID-19 from person to person by contamination. Therefore, in this paper, we propose models to elucidate how people are infected with COVID-19 through droplet transmission when eating with Chinese cultural context to address the urgent need to change Chinese eating culture; we believe these study models can help not only the Chinese people, but also other national people, to raise mindfulness of public health, prevent COVID-19 and other infectious diseases, at the present pandemic and in the future.
Colonoscopic Finding of Patients with Lower Gastrointestinal Bleeding at Different Age Group in Eastern Part of India – An Observational Study
Authors: Paul Jayanta
Published: March 2020

Incidence of lower gastrointestinal (GI) bleeding (LGIB) is increasing over time. It can be seen in all age group patients, commonly associated with pre-existing comorbidities and is one of the common indications of colonoscopy. This study was done to identify common causes of LGIB in eastern part of India, because there is no previous study from Eastern India to identify the common causes of lower GI bleeding diagnosed by colonoscopy in different age group patients. Consecutive 64 patients with LGIB were included in this study from June 2018 to March 2019. We divided our study population into three groups, such as group A (20 years to 40 years), group B (41 years to 60 years), and group C (more than 60 years). Data were entered into Excel and then transferred into SPSS version 22 for statistical analysis. Mean age of study population was 49.83 ± 19.06 years. Normal colonoscopic finding was seen in 7 patients (10.9%). Most common colonoscopic findings of our study population were hemorrhoids (n=32; 50%), anal fissure (n=11; 17.2%) and isolated rectal ulcer (n=9; 14.1%). Colorectal growth was seen in 6 patients (9.4%), among them female patients were more commonly affected than male patients. Therefore, most common causes of LGIB in eastern part of India are hemorrhoids, anal fissure and isolated rectal ulcer. Male individuals are more commonly affected by LGIB.
Spinal Cord Tethering, a Very Rare Cause of Cauda Equina Syndrome after Lumbar Disk Surgery: A Case Report
Authors: Tabibkhooei Alireza , Kazemi Farid , Kazemi Foad , Taheri Morteza
Published: March 2020

Tethered cord syndrome (TCS) may rarely remain asymptomatic until degenerative or nondegenerative lumbar diseases superimpose in adulthood and expose the hidden anomaly. In such cases, different treatment options can be selected and simultaneous detethering might be considered too. We are reporting an undiscovered TCS in a young lady who underwent lumbar diskectomy due to symptomatic disk extrusion and suffered complete cauda equina syndrome (CES), postoperatively.
BUDDENBROOKS AM SCHWARZEN MEER. VLADIMIR JABOTINSKYS ODESSA-ROMAN DIE FÜNF
Authors: Von der Lühe Irmela
Published: March 2020

Irmela von der Lühe, BUDDENBROOKS AM SCHWARZEN MEER. VLADIMIR JABOTINSKYS ODESSA-ROMAN DIE FÜNF. „PORÓWNANIA” 1 (24), 2019. T. XXIV, S. 123-133. ISSN 1733-165X. Vladimir Jabotinskys Roman Die Fünf ist bei seinem Erscheinen in Deutschland (2012) als eine literarische Entdeckung gefeiert worden. In der Familiengeschichte der Milgroms aus dem Odessa der Jahre vor der Revolution von 1905 spiegeln sich Hoffnungen und Enttäuschungen der Revolution und der jüdischen Assimiliation, des Aufbruchs in eine neue Welt der Moderne und des Absturzes in eine Welt der brutalen Antimoderne. Der Beitrag untersucht die besonderen literarischen Strategien einer Arbeit an der Erinnerung: des Erzählens von Straßen, Plätzen und Räumen, der Analogisierung des politischen Geschehens mit einem Bühnengeschehen, der symbolistischen Überhöhung der Realität durch Rückgriff auf literarische Texte. Nichtnur aus politischen, auch aus erzählerischen Gründen wird Odessa in Jabotinkskys Roman also zu einem umstrittenen Erinnerungsort.
ZMIANA SYMULOWANA. TOTALITARYZM I TO, CO NASTĄPIŁO PÓŹNIEJ
Authors: Cristina Petrescu Cristina Petrescu
Published: March 2020

Mój komentarz dotyczy oceny wpływu totalitarnego, komunistycznego dziedzictwa na system edukacji. Zostało to przeprowadzone w jednym z rozdziałów książki Aviezera Tuckera, The Legacies of Totalitarianism. Według niego głównym dylematem posttotalitarnego uniwersytetu jest odpowiedź na pytanie,czy celem fundamentalnej restrukturyzacji szkolnictwa wyższego jest osiągnięcie autonomii, czy zagwarantowanie sobie poparcia państwa poprzez symulację zmiany. Tucker twierdzi, że system boloński oznacza transformację uniwersytetów w zarządzane przez państwo korporacje, które obniżają standardy nauczania i wprowadzają różne mechanizmy mierzenia aktywności naukowej. Autor przekonująco argumentuje, że nieintecjonalnym efektem przystąpienia byłych krajów komunistycznych do Unii Europejskiej jest powrót do znanego w okresie komunizmu modelu symulowania zmian w szkolnictwie wyższym.
DYSYDENCI I NOMADOWIE W PAŃSTWACH (NIE TYLKO) POSTTOTALITARNYCH. CZYLI DLACZEGO TYLE PROBLEMÓW, SKORO JEST TAK DOBRZE?
Authors: Rafał Paweł Wierzchosławski Rafał Paweł Wierzchosławski
Published: March 2020

Książka Aviezera Tuckera The Legacies of Totalitarianism. A Theoretical Framework wpisuje się nurt prac, które podejmują kwestię zwycięstwa liberalnej demokracji w krajach o totalitarnej przeszłości i postsowieckiej dominacji po 1989 roku. W tekście analizuję problemy, które można wskazać w kontekściesugestii autora, że dysydenci (i kategoria życia w prawdzie) odgrywali istotną rolę nie tylko w obaleniu komunizmu (realnego socjalizmu), lecz także pełnią ją w utrzymaniu zdobyczy liberalnej demokracji w krajach Europy Środkowo-Wschodniej, która obecnie ma być zagrożona demonami populizmu, nacjonalizmu, ksenofobii. Zasadnicze pytanie mojego tekstu dotyczy kwestii, czy byli dysydenci potrafili stworzyć dobre i funkcjonalne państwa, czy też nowe elityzdezerterowały, pozostawiając instytucje państwowe na łup pasożytujących na nich nomadów, co prowadzi do sprzeciwu obywateli. Kwestia ta dotyczy, jak się wydaje, nie tylko krajów tego regionu, lecz także całej Europy.
PYTANIA ZADAWANE MIŁOSZOWI (I SOBIE)
Authors: Opacka-Walasek1 Danuta
Published: March 2020

.
LITERACKIE ŚLADY LUDOBÓJSTWA
Authors: Taczyńska Katarzyna T
Published: March 2020

.
ERINNERUNGSORTE UND DIE FREIHEIT DES ERINNERNS. EINFÜHRUNGSVORTRAG ZUM WORKSHOP „UMSTRITTENE ERINNERUNGSORTE IN DER UKRAINE IM SPIEGEL DER DEUTSCHEN, POLNISCHEN, UKRAINISCHEN UND RUSSISCHEN LITERATUR UND GESCHICHTSSCHREIBUNG”
Authors: Voloshchuk Ievgeniia
Published: March 2020

Ievgeniia Voloshchuk, ERINNERUNGSORTE UND DIE FREIHEIT DES ERINNERNS.EINFÜHRUNGSVORTRAG ZUM WORKSHOP „UMSTRITTENE ERINNERUNGSORTE INDER UKRAINE IM SPIEGEL DER DEUTSCHEN, POLNISCHEN, UKRAINISCHEN UND RUSSISCHENLITERATUR UND GESCHICHTSSCHREIBUNG“. „PORÓWNANIA” 1 (24), 2019. T. XXIV, S. 21-29. ISSN 1733-165X.

Im Fokus des Beitrags stehen zentrale Aspekte und kontroverse Fragestellungen der aktuellen kulturellen Repräsentationen der umstrittenen Erinnerungsorte in der Ukraine. An konkreten Beispielen beschäftigt sich die Autorin mit den Instrumentalisierungen der umstrittenen Erinnerungsorte im Zuge der neusten Umschreibung der ukrainischen Geschichte,ihren Umkodierungen innerhalb des nationalen Diskurses und im „polyphonen“ Raum des multinationalen Staates sowie mit ihren Transformationen unter dem Einfluss der ideologischen Zensur bzw. des „Kriegs der Erinnerungen“. Analysiert werden dabei vor allem die Zusammenhänge zwischen dem Diskurs über die umstrittenen Erinnerungsorte in der Ukraine, dem Konzept der „Europäizität“, den Identitätsentwürfen in den Ländern des östlichen Europa, den dort konstruierten „Bildern der Vergangenheit“ und den imagologischen Stereotypen.
DIE UMGESTALTUNG DES KOLLEKTIVEN GEDÄCHNISSES DIE IDEOLOGISCHE FUNKTION DES UKRAINISCHEN INSTITUTS FÜR NATIONALES GEDÄCHNIS IN 2014-2017
Authors: Minakov Minakov
Published: March 2020

Mikhail Minakov, DIE UMGESTALTUNG DES KOLLEKTIVEN GEDÄCHNISSES. DIE IDEOLOGISCHE FUNKTION DES UKRAINISCHEN INSTITUTS FÜR NATIONALES GEDÄCHNIS IN 2014-2017. „PORÓWNANIA” 1 (24), 2019. T. XXIV, S. 31-43. ISSN 1733-165X. Nach dem Euromaidan entwickelte sich die Ukraine widersprüchlich. Neben der Demokratisierung und Europäisierung verbreiteten sich auch konservative Ideologien und Einschränkungen der bürgerlichen Freiheiten. Diese letzteren Tendenzen waren mit dem Versuch verbunden, ein ideologisches Monopol (ein System der ideologischen Kontrolle, das in der UdSSR existierte und in den Dekommunisierungsprozessen von 1989-91) im Interesse der heutigen herrschenden Gruppen zu etablieren. Eine der Institutionen, die die Möglichkeit der Wiederbelebung des ideologischen Monopols ergänzen, ist das Ukrainische Institut für Nationales Gedächtnis. In diesem Text argumentiert der Autor, dass sich das Institut nach mehreren Reformen zwischen 2006 und 2018 zu einer staatlichen Einrichtung entwickelt hat, die konservative Kulturpolitik und eine Politik der illiberalen Identität betreibt, die die staatsbürgerliche demokratische Konsolidierung der Ukraine untergräbt. Anhand der Analyse der politischen Rolle und der bisherigen Erfolge des Instituts gelangt der Autor zu dem Schluss, dass die derzeitige Kulturpolitik und die Organisationspraktiken des Instituts ein neues postsowjetisches ideologisches Instrumentarium geschaffen haben, mit dem Machteliten effektiv ein konservatives ideologisches Monopol in der Ukraine aufbauen können.
„HIER GIBT ES KEINE UNSCHULDIGEN“. DIE MIKROKOLONISIERUNG DES DONBASS IN JEVHEN POLOŽIJS ROMAN „ILOVAJS’K“ (2015)
Authors: Chertenko Alexander
Published: March 2020

Alexander Chertenko, „HIER GIBT ES KEINE UNSCHULDIGEN“. DIE MIKROKOLONISIERUNG DES DONBASS IN JEVHEN POLOŽIJS ROMAN „ILOVAJS’K“ (2015). „PORÓWNANIA” 1 (24), 2019. T. XXIV, S. 69-84. ISSN 1733-165X. Am Beispiel von Jevhen Položijs „Ilovajs’k“ wird im Beitrag der literarische Diskurs über die Mikrokolonisierung des Donbass untersucht, der für die ukrainische Literatur zum russisch-ukrainischen Krieg von zentraler Bedeutung ist. Mit Verweis auf die kompensatorischen quasiimperialen Praktiken, die von den ehemaligen Kolonien oft verwendet werden, wird das Mikrokolonialismus-Dispositiv hier als das wichtigste Instrument einer kulturellen und politischen (Wieder)Aneignung des Donbass in Gestalt eines „inneren Fremden“ analysiert. Wie der Roman zeigt, führt der mikrokolonisatorische Ansatz zur literarisch ausgetragenen Entmenschlichung der Region und zum Ausschluss seiner Bevölkerung aus der „eigenen“ Kommemorationspraxis, somit auch zur Delegitimierung jeglicher regionaler Identifizierungen, die vom ukrainischen nationalen Narrativ abweichen, und schließlich zur performativen (Re)Integration des auf das Territorium reduzierten Donbass ins Projekt der „unteilbaren“ Ukraine.
ZNIEWAŻONA ZIEMIA (LA TERRE OUTRAGÉE, 2012) MICHALE BOGANIM JAKO FILM POSTTRAUMATYCZNY
Authors: Waligórska-Olejniczak Beata
Published: March 2020

Beata Waligórska-Olejniczak, ZNIEWAŻONA ZIEMIA (LA TERRE OUTRAGÉE, 2012) MICHALE BOGANIM JAKO FILM POSTTRAUMATYCZNY. „PORÓWNANIA” 1 (24), 2019. T. XXIV, S. 85-94. ISSN 1733-165X. Celem artykułu jest analiza filmu Znieważona ziemia Michale Boganim z punktu widzenia współczesnych badań nad traumą i studiów nad pamięcią. Wykorzystując aparat pojęciowy, funkcjonujący w obszarze tych badań, zauważono, że film Znieważona ziemia mieści się w kategorii filmu posttraumatycznego nie tylko ze względu na centralny dla niego temat czarnobylskiej katastrofy i jej następstw, które widz ma okazję obserwować głównie przez pryzmat milieu. Boganim umiejscawia traumę świadka przede wszystkim w niezdolnym do jej przepracowania ciele i psychice człowieka. Źle ulokowana nostalgia, melancholia, kinetyczna nadpobudliwość funkcjonują w filmie jako znaki, pozwalające widzowi współodczuwać tragedię bohaterów, rodzaj powtarzalnego kodu, zmuszającego do refleksji nad mechanizmami pamięci i zapominania.
Mudanças temporais na estrutura vegetacional de um fragmento de Caatinga, sul do Piauí
Authors: Da Silva Leovandes Soares , Costa Thaís Ribeiro , Salomão Natália Viveiros , Alves Allyson Rocha , Santos Tatiano Ribeiro , Machado Evandro Luiz Mendonça
Published: March 2020

Estudos de dinâmica florestal permitem avaliar as variações da composição florística, mortalidade, recrutamento e o crescimento das espécies, sendo que estas informações são importantes para conservação dos escossistemas florestais. O objetivo desse estudo foi avaliar as mudanças na estrutura de espécies arbustivas-arbóreas em uma área de Caatinga, na região sul do Piauí. Para realização desse estudo foi avaliado a estrutura da vegetação em dois períodos, o primeiro inventário florestal foi em 2016 e o segundo em 2019, utilizando para isso, o processo de amostragem do tipo sistemática com 13 unidades amostrais de 20 × 20 metros. Dentro das unidades amostrais foram mensurados e identificados todos os indivíduos vivos com CAP ≥ 6 cm. Foram analisadas todas as mudanças ocorridas na vegetação entre os dois inventários, como número de indivíduos, famílias, espécies, índice de diversidade e equabilidade, dinâmica (recrutamento e mortalidade), estrutura e classes diamétricas. Nos resultados, houve decréscimo no número de indivíduos e o recrutamento foi inferior a mortalidade. A área basal do último inventário foi inferior a área basal inicial (3,567 - 3,294 m2.h-1), devido ao número de indivíduos mortos. As mudanças foram mais aceleradas na primeira classe diamétrica, seja pela mortalidade ou crescimento para classes posteriores. A composição de espécies e a diversidade florística permaneceram inalteradas, a densidade dos indivíduos diminuiu e os sobreviventes aumentaram a área basal.
Regularity for minimizers of a class of non-autonomous functionals with sub-quadratic growth
Authors: Gentile Andrea
Published: March 2020

We consider functionals of
the form

ℱ
⁢

(
v
,
Ω
)

=

∫
Ω

f
⁢

(
x
,

D
⁢
v
⁢

(
x
)

)

⁢

𝑑
x

,

\mathcal{F}(v,\Omega)=\int_{\Omega}f(x,Dv(x))\,dx,

with convex integrand with respect
to the gradient variable, assuming that the function that measures
the oscillation of the integrand with respect to the x variable
belongs to a suitable Sobolev space

W

1
,
q

{W^{1,q}}

.
We prove a higher differentiability result for the minimizers.
We also infer a Lipschitz regularity result of minimizers if

q
>
n

{q>n}

, and a result of higher integrability for the gradient if

q
=
n

{q=n}

.
The novelty here is that we deal with integrands satisfying subquadratic growth conditions with respect to gradient variable.
The Concept of Halvemål in Norwegian Linguistics – a Historiographical Account
Authors: Hårstad Stian
Published: March 2020

This paper explores the historical background and application of the concept halvemål in Norwegian linguistics, with particular regard to the disciplines of dialectology and onomasiology. The concept occurs in numerous studies and serves as an apt illustration of how a folk notion may evolve into a recognized scientific term. The paper gives a detailed account of the employment of the term, and shows that its signification differs noticeably in different scholarly contexts. The study further indicates that the concept has been considered “quasi-scientific” by several scholars, possibly because of its background as a lay explanation.
The Polish interest in the Eddas — Joachim Lelewel’s Edda of 1828
Authors: Krakow Annett
Published: March 2020

In the second half of the 18th century and early 19th century, a rising interest in Old Norse literature outside the Nordic countries could be noted that, to a great deal, focused on the Poetic Edda and the Prose Edda as sources for Norse mythology. This interest is also reflected in the works of the Polish historian Joachim Lelewel (1786–1861) who, in 1807 and 1828, published translations and retellings of the Poetic and the Prose Edda. These were based on French, German and Latin translations. The second edition of 1828 is characterised by a more comprehensive section with eddic poetry, the selection of which is also explained by Lelewel, as well as an essay on pre-Christian religion that also includes a research overview and a list of editions/translations of the Eddas.
’Borta bra men hemma bäst’? – Das schwedische miljonprogram in literarischen Darstellungen von seinen Anfängen bis in die Gegenwart
Authors: Tischmann Hannah
Published: March 2020

This article analyses literary approaches to the relation between the folkhem, the Swedish welfare state, and the miljonprogram (a public housing program between 1965 and 1974 implemented by the social democratic government with the aim to build 1 million homes to solve the housing shortage). Since its initiation, this housing program has been subjected to critique addressing, among others, issues with quality and the promotion of segregation and social exclusion. Literary discussions since the mid-1960s have both responded to this critique and challenged it. They have questioned the impact of welfare politics on a still divided society by drawing on negative aspects of miljonprogram-areas. Recent texts that negotiate class and ethnicity, however, reclaim these areas with positive descriptions. They highlight their meaning as homes for a large part of Swedish contemporary society and thereby re-connect to the original idea of the folkhem – a home for the people.
Powerfully nilpotent groups of rank 2 or small order
Authors: Traustason Gunnar , Williams James
Published: March 2020

In this paper, we continue the study of powerfully nilpotent groups.
These are powerful p-groups possessing a central series of a special kind.
To each such group, one can attach a powerful nilpotency class that leads naturally to the notion of a powerful coclass and classification in terms of an ancestry tree.
In this paper, we will give a full classification of powerfully nilpotent groups of rank 2.
The classification will then be used to arrive at a precise formula for the number of powerfully nilpotent groups of rank 2 and order

p
n

{p^{n}}

.
We will also give a detailed analysis of the ancestry tree for these groups.
The second part of the paper is then devoted to a full classification of powerfully nilpotent groups of order up to

p
6

{p^{6}}

.
Streptococcus pneumoniae-associated thrombotic microangiopathy in an immunosuppressed adult
Authors: Ichikawa Yumi , Murata Masato , Aoki Makoto , Nakajima Jun , Isshiki Yuta , Sawada Yusuke , Fukushima Kazunori , Oshima Kiyohiro
Published: March 2020

A 62-year-old male who was receiving prednisolone and methotrexate for scleroderma and rheumatoid arthritis complained of diarrhea and vomiting, and was transferred to our hospital for detailed examination and treatment of renal dysfunction and thrombocytopenia. Hemolytic anemia and crushed erythrocytes were found during the patient’s course; therefore, we suspected thrombotic microangiopathy (TMA). His ADAMTS13 activity was 60.3% and his ADAMTS13 inhibitor was under 0.5. In addition, his blood culture was positive for Streptococcus pneumoniae, and we finally diagnosed Streptococcus pneumoniae-associated TMA (pTMA). The patient was treated with antibiotics and hemodialysis. The patient recovered and was discharged on the 45th hospital day. Adult pTMA cases are remarkably rare. We herein report a successfully treated adult case of pTMA.
Self-reported traumatic etiology of pain and psychological function in tertiary care pain clinic patients: a collaborative health outcomes information registry (CHOIR) study
Authors: Taub Chloe J. , Sturgeon John A. , Chahal Mandeep K. , Kao Ming-Chih , Mackey Sean C. , Darnall Beth D.
Published: March 2020

Background and aims

A sizable body of research has elucidated the significant role of psychological reactions to trauma on pain coping and outcomes. In order to best inform intervention development and clinical care for patients with both trauma and pain at the tertiary care level, greater clarity is needed regarding the magnitude of these effects and the specific pathways through which they may or may not function at the time of first presentation to such a treatment setting. To achieve this, the current study examined the cross-sectional relationships between traumatic etiology of pain, psychological distress (anger, depressive symptoms, and PTSD symptoms), and pain outcomes (pain catastrophizing, physical function, disability status).

Methods

Using a structural path modeling approach, analyses were conducted using a large sample of individuals with chronic pain (n = 637) seeking new medical evaluation at a tertiary pain management center, using the Collaborative Health Outcomes Information Registry (CHOIR). We hypothesized that the relationships between traumatic etiology of pain and poorer pain outcomes would be mediated by higher levels of psychological distress.

Results

Our analyses revealed modest relationships between self-reported traumatic etiology of pain and pain catastrophizing, physical function, and disability status. In comparison, there were stronger relationships between indices of psychological distress and pain catastrophizing, but a weaker pattern of associations between psychological distress and physical function and disability measures.

Conclusions

To the relatively small extent that self-reported traumatic etiology of pain correlates with pain-related outcomes, these relationships appear to be due primarily to the presence of psychiatric symptoms and manifest most notably in the context of psychological responses to pain (i.e. catastrophizing about pain).

Implications

Findings from this study highlight the need for early intervention for patients with traumatic onset of pain and for clinicians at tertiary pain centers to include more detailed assessments of psychological distress and trauma as a component of comprehensive chronic pain treatment.
Heteroleptic ruthenium(II) 2,2′-bipyridine complexes incorporating substituted pyrazol-1-yl-pyridazine ancillaries
Authors: Tang Li-Hua , Cheng Mao-Ling , Qian Zhe , Jia Ai-Quan , Zhang Qian-Feng
Published: March 2020

Condensation of 3,6-dichloropyridazine or 3,6-dichloro-4,5-dimethyl- pyridazine with 3-methyl-1H-pyrazole or 4-methyl-1H-pyrazole with the assistance of sodium metal in tetrahydrofuran at reflux afforded three 3,6-bis(pyrazolyl)- pyridazine-type ligands: 3,6-bis(3-methylpyrazolyl)pyridazine (L1), 3,6-bis(4-methyl- pyrazolyl)pyridazine (L2) and 4,5-dimethyl-3,6-bis(4-methylpyrazolyl)pyridazine (L3). Reactions of cis-[RuCl2(bpy)2] · 2H2O (bpy = 2,2′-bipyridine) and L1, L2 or L3 in the presence of NH4PF6 produced the heteroleptic cationic ruthenium(II) complexes [Ru(L1)(bpy)2](PF6)2 (1), [Ru(L2)(bpy)2](PF6)2 (2) and [Ru(L3)(bpy)2](PF6)2 (3), respectively. The three complexes have been characterized by UV/Vis and luminescence spectroscopy. The crystal structures of 1 · EtOH, 2 · EtOH and 3 have been determined by single-crystal X-ray diffraction.
Fractal analysis of seismoacoustic signals of near-surface sedimentary rocks in Kamchatka
Authors: Imashev Sanjar , Mishchenko Mikhail , Cheshev Mikhail
Published: March 2020

We studied, by the mono- and multifractal detrended fluctuation analysis (DFA), time fluctuations in the dynamics of seismoacoustic data, recorded in Karymshina site, which is located in a seismic area of Kamchatka. We took a series of seismoacoustic responses to the regional seismic events with the mag-nitudes M > 4 for the period 2017–2018. The series was divided into three groups (high, medium and low) based on the amplitude of recorded seismoacoustic re-sponse. Background noise segments of the signals demonstrated monofractal behavior similar to white noise by almost constant values of generalized Hurst exponent Hq≈0.5 and very small width of the multifractal spectrum Δa ≈ 0.1. Analysis of the high amplitude seismoacoustic signals with clear P-, S- and coda waves showed that P- and S-waves demonstrate wider multifractal spectrum (ΔaP = 0.37, ΔaS = 0.35) and range of generalized Hurst exponents Hq in com-parison with coda wave, characterized by almost constant Hq and minimal width of multifractal spectrum (ΔaCODA = 0.13). We showed that the properties of the multifractal spectrum could be used in detection of seismic wave arrival, estima-tion its duration and separation of P-, S- and coda waves. Application of the monofractal DFA in a sliding window showed that the acoustic signal transits from monofractal and uncorrelated background noise (Hurst exponent equals to 0.5) into the long-range dependent state during seismic waves arrival, that is helpful in analysis of the signals, particularly in case of low amplitude acous-tic responses, usually demonstrating an unclear waveform. Difference in mul-tifractal spectrum width between the original low amplitude signal and its sur-rogates, obtained by random shuffling showed that the multifractality in the signal is dominantly due to long-range correlations.
Evidence of the Financial Audit
Authors: Raziūnienė Daiva , Adaškevič Uršula
Published: March 2020

Evidence is an argument that justifies the truth or falsity of a subjective opinion or assertion. Characteristics of audit evidence directly impact the obtaining process of sufficient audit evidence as well as determine the final audit decision regarding fairness and truthfulness of financial reporting. The purpose of the article is to identify the material aspects of evaluating audit evidence and to define the concept of the financial statement‘s audit evidence. The research methods applied in the article are comparative analysis and synthesis of Lithuanian and foreign scientific literature, interpretation, critical thinking and systematization of financial audit laws and regulations. Furthermore, the article examines the concept of financial audit evidence, its characteristics and criteria of reliability as well as disclosure of material audit evidence.
Isolation of cancer stem-like cells from hepatocellular carcinoma cell line HepG2 by methods of magnetic-activated cell sorting, spheroid culture, and anti-tumor drug-resistant selection: A primary evaluation
Authors: Nguyen Sinh Truong , Nguyen Luong Sy , Nguyen Thao Hoang Phuong , Vo Phuc Hong , Do Nghia Minh , Truong Kiet Dinh , Pham Phuc Van
Published: March 2020

Introduction: Recently reported data have suggested that only a small subset of cancer cells possess the capability to initiate malignancies. These observations were based on investigation of cells within the primary tumors displaying a distinct surface marker pattern. CD133 marker is a putative hematopoietic and neuronal stem cell marker, which is also considered to be a tumorigenic marker in brain, prostate and liver. Recent studies have shown that a small population of CD133-positive cells, indeed, exists in human hepatocellular carcinoma (HCC) cell lines and primary HCC tissues. This study was aimed at isolating the cancer stem-like cells from hepatocellular carcinoma cell line HepG2 using three different methods: magnetic-activated cell sorting (MACS), spheroid culture (SC), and anti-tumor drug (ATD) resistant selection.

Methods: HepG2 hepatocellular carcinoma cells were expanded to yield enough cells that could be used to isolate cancer stem-like cells by these three methods. For MACS, cancer stem-like cells were sorted using anti-CD133 monoclonal antibody. For the second method, cancer stem-like cells were enriched by selection of anti-tumor drug resistance property. Lastly, for the third method, three-dimensional (3D) culture was used to enrich for the cancer stem-like cells. The cells obtained by the three methods were expanded to obtain an adequate number of cells for confirmation of CD133 expression.

Results: The expression of CD133+ cells in the three methods was found to be different. In the MACS method, the expanded CD133+ sorted cells cultured through 2 passages only contained 0.40 % CD133+ cells. In the 3D spheroid cell culture, of the population of cells there were 38.39 % that were CD133+ cells. Lastly, in the anti-tumor drug (doxorubicin at 150 nM) resistant selection, 66.22 % were CD133+ cells.

Conclusion: This study shows that isolation of HepG2 derived CD133+ population by culture with doxorubicin (150 nM) yields the highest efficiency and purity of the 3 methods studied.
Aplicación de metodologías de Apropiación Social de las Ciencias Geológicas y Patrimonio Geológico Mueble: caso Museo Histórico de El Peñol, Antioquia.
Authors: Tavera Escobar Miguel Ángel , Montoya Campo Juan David , Marín Cerón María Isabel
Published: March 2020

El potencial del Museo de El Peñol como epicentro geográfico y de desarrollo social, permitió la implementación de metodologías de Patrimonio Geológico y de Apropiación Social de las Ciencias Geológicas, mediante la aplicación de estrategias educativas como: intervenciones físicas, capacitaciones e implementación de recursos divulgativos en las colecciones geológicas existentes; con el propósito de realizar un diálogo de saberes que ampliara la comprensión del territorio por parte de pobladores y visitantes. Estas estrategias se basaron en una revisión de la información geológica del Oriente antioqueño enfocada en la génesis y evolución de las principales geoformas de la región. Al realizar el presente trabajo se recomienda la integración de mecanismos que faciliten la aplicación de los Lineamientos Nacionales de Apropiación Social de las Ciencias Geológicas en lugares como el Museo de El Peñol, considerando que desempeñan un rol como mediadores del conocimiento geológico en la ruralidad de Colombia.
Aplicación del software DOPPLER en un proyecto minero hipotético de un yacimiento polimetálico
Authors: Franco Sepúlveda Giovanni , Cerchiaro-Sánchez Isabella , Marulanda-Cárdenas Juan Fernando
Published: March 2020

El presente artículo se desarrolla con el propósito de obtener la valoración económica y el agendamiento para un proyecto minero hipotético de oro a cielo abierto mediante el uso de DOPPLER como herramienta informática, esto debido al crecimiento y la importancia que ha adquirido el uso de software especializado en el negocio minero. Para el desarrollo del artículo se definen una serie de parámetros a considerar como los destinos, capacidad de destinos, ángulo de talud, precio del metal, entre otros, a partir de los cuales se ejecutan una serie de agendamientos mediante los diferentes métodos ofrecidos por DOPPLER. Una vez obtenidos los resultados (agendamiento, VPN, etcétera.), se analizan y se comparan entre sí con el fin de determinar cuál es el más adecuado para el proyecto hipotético considerado en este artículo.
Variación de la velocidad y la frecuencia cardiaca durante un maratón en un ambiente caluroso
Authors: Rojas-Valverde Daniel , Sánchez-Ureña Braulio , Ugalde-Ramírez Alexis , Gómez-Carmona Carlos D , Pino-Ortega José , Gutiérrez-Vargas Randall
Published: March 2020

The purpose of the study was to analyze the variation of running speed and heart rate in amateur runners during a marathon in a hot environment. Eighteen runners (weight: 65.2 ± 12.21 kg, height: 168.4 ± 10.6 cm, VO2max: 52.9 ± 7.1 ml/kg/min) took part of a beach-side marathon (42195 m) under a temperature of 27.8 ± 3.52 ºC and at 0-80 m altitude. Pearson’s correlation showed a significant linear relationship between the increase in thermal stress index (WGBT) and the speed variation (r= 0.168, p= 0.049). In this respect, the total duration of the race revealed a direct relationship with speed (r= 0.675, p= 0.003) and heart rate (r= 0.631, p= 0.007) variation. Multiple regressions analysis showed that 61.6% of the final race time was explained by the speed variation in the 26 to 30 km course section (r2= 0.61; F= 26.17; p< 0.001) and 37% by the heart rate variation in the 31 to 35 km section (r2= 0.37; F= 10.38; p< 0.001). In conclusion, an increase in the environmental temperature provoked a decrease in running pacing, with a stronger effect in the second half of the race. Therefore, coaches should take these aspects into account in training and strategies to mitigate the impact of these conditions on the physical and physiological performance of amateur runners.
Russian Composite Words with a Borrowed Component in Business-Communication
Authors: Dubovsky Yury , Zagrayevskaya Tatiana
Published: March 2020

The article presents the results of the analysis of main processes and mechanisms of forming composite words with a borrowed component in modern Russian business communication. The linguistic interpretation of the observed phenomena is carried out with due regard to the following: the presence of original, assimilated or non-assimilated borrowed component in the structure of a composite word; the change of the composite structural status in the process of its constituent(s) borrowing; the modification of the composite semantics in the process of borrowing and in the usage afterwards, and the change of graphic and phonetic representation of the composite as well as the order of its components. The results of the research showed that composites in modern Russian business communication are mostly represented by the structures with original and borrowed assimilated components. The number of composites with a borrowed nonassimilated components is also considerable. The process of foreign composite units transition into Russian requires their structural status change. The adoption of composite borrowings into Russian is accompanied by modifications of their graphic, phonetic features as well as by the order of composite constituents.
Linguoconflictology and Conflicts in Russian Media (Analysis of Double Case)
Authors: Kara-Murza Elena
Published: March 2020

The article is devoted to linguoconflictology – a branch of Russian linguistics, which reveals the causes and consequences of confrontational interaction. The article describes the history of its formation in the framework of legal linguistics as one of the linguophilosophical foundations of judicial linguistic expertise. Linguoconflictology is addressed, first of all, to future and current linguists-experts and is intended to make them aware of the regularities of conflict communication, which is subject to judicial linguistic examination, and the conflict nature of the expert activity itself; and secondly, future and current employees of mass media – for the prevention of speech torts in them. The author's version of this science is described. The author reveals its basic concepts and shows the gradation from communicative failure to communicative conflict, which is characterized as normative-axiological and occurs when the norms of communication (naive-ethical, professional-ethical and legal) are violated. According to the author, it should be distinguished from speech conflict as a form of activity. Specific to this variant of linguoconflictology is the linguo-legal conflict. Its occurrence is caused by violation of legal requirements and prohibitions.The analysis algorithm developed by the author is demonstrated by the example of a double case – a conflict that began in the sports sphere as an injury in a stage football match, and continued in the media space of sports journalism as a communicative conflict and it almost escalated into a conflict linguolegal.
Current Problems of Forensic Authorship Analysis and the Possibility of Their Solution with the Use of Computer Methods: Problems and Prospects
Authors: Litvinova Tatyana , Gromova Anastasiya
Published: March 2020

Active development of Internet communication in recent years caused an increase in the number of forensic text examinations aimed at identifying and profiling (i.e. inferring gender, age, personality, etc. of the author from textual analysis) the author of written texts. Despite the availability of proven methodological recommendations for the production of such examinations, in this area there are many unresolved problems associated mainly with the emergence of new research objects. In addition, the existing expert practice does not fully utilize the achievements of corpus, computer, and quantitative linguistics. In this situation, there is a gap between the "qualitative" and "quantitative" methods of textual authorship analysis, which hinders further development of both theoretical research in the area of authorship attribution and profiling and an increase in the level of objectivity and reproducibility of forensic authorship analysis. The paper represents some typical tasks solved by a forensic expert; describes the characteristics of the objects of forensic authorship analysis, and determines the main difficulties forensic experts face in the course of this analysis. The possibilities of using existing computer methods to solve these tasks are analyzed. It is shown that not all the existing computer methods are useful for forensic authorship analysis. We also highlight the ways of development of forensic authorship analysis related to further theoretical research in the field of idiolect using corpus data and natural language processing techniques.
Determining the Binding Capacities of Cr (VI) and Zn (II) Ions of Oscillatoria sp.
Authors: SEZGİN Gulsan , YİLDİZ Sukran , SENTURK Tugba
Published: March 2020

This study aimed to determine the removal capacity for Cr (VI) and Zn (II) ions from high concentration of aqueous solutions by using Oscillatoria microalgae. In the biosorption process, live and dead Oscillatoria cells were exposed for 24 hours to Cr and Zn metals of different concentrations (2.5, 5 and 10 mg/L). In addition, chlorophyll-a analysis have been made to examine the effects on cell metabolism of chromium and zinc metals. The best metal removal percentages was obtained; of chromium ion is 46.74% with dead cells and for zinc ion 82.53% with living cells. Chlorophyll-a analysis shows that when the metals separately applied on Oscillatoria cells, chlorophyll-a content of organism increase but when metals together applied decrease of chlorophyll-a content was observed. For this study, Freundlich model best fitted the data for two metal ions with 1/n value <1. This study revealed that Oscillatoria cells were an effective adsorbent for removal of the two heavy metals, especially Zn ions from aqueous solutions due to its high efficiency of Zn adsorption. It shows that it is a kind of potential for this heavy metal removal operations.
The Effects of Green Tea Leaf Extract on Cytogenetical and Physiological Parameters of Allium cepa L. exposed to Salinity
Authors: ÇAVUŞOĞLU Dilek
Published: March 2020

The aim of this study investigated the effects of 50 mg L-1 green tea leaf extract in decreasing harmful effects of 0.175 M salinity stress on the mitotic activity, chromosomal aberrations, seedling growth (fresh weight, radicle length and radicle number), micronucleus frequency which is the simplest indicator, the most effective of cytological damage and bulb germination of A. cepa L. In only green tea leaf extract medium, the radicle length and radicle number of bulbs were partially reduced compared to the control bulbs germinated in the distilled water medium. While their germination percentage and fresh weight statistically indicated the same values. Besides, the mitotic index and chromosomal abnormalities in the root tip meristematic cells of Allium cepa bulbs germinated in alone green tea leaf extract medium increased compared to germinated control bulbs in the distilled water medium, whereas the micronucleus frequency showed statistically the same value compared to the control. In other words, it can be said that salt stress significantly inhibited the seedling growth and bulb germination of Allium cepa. What’s more, it significantly reduced the mitotic index in the root tip meristems of the bulbs and increased the number of chromosomal abnormalities and micronuclues frequency. On the other hand, inhibitory effects of salt on the mitotic activity, seedling growth, bulb germination, chromosomal abnormalities and micronuclues frequency significantly decreased with the application of green tea leaf extract. The germination percentage, radicle lenght, radicle number, fresh weight, mitotic index, micronuclues frequency and chromosomal aberrations of the seedlings grown in 0.175 M salinity were 23 %, 10.3 mm, 12.7, 7 g, 1.2 %, 13 % and 17 % respectively, while these values became 75 %, 13.4 mm, 17.2, 13.8 g, 6.3 %, 9 % and 9.3 % in the seedlings treated with 50 mg L-1 green tea leaf extract.
Synthesis and Characterisation of Polyaromatic Chalcones with Electron Donation
Authors: ATAHAN Alparslan
Published: March 2020

In this study, a series of chalcone derivatives was successfully synthesized via condensation of 1-acetylpyrene with dimethylamine, diphenylamine or carbazole containing benzaldehyde derivatives at basic conditions. Spectral characterisations were acquired by 1 and 2 dimensional NMR techniques and FTIR. In addition, UV-vis and thermal analysis studies were performed to determine their absorption properties and thermal behaviours, respectively. Lastly, surface and film generation properties were investigated by the means of SEM images on ITO glass to determine usability potential in organic electronics.
Spectral diagnostics of vibrational centers in crystals with hydrogen bonds
Authors: Timokhin V. M. , Garmash V. M. , Tedzhetov V. A.
Published: March 2020

In practical application of crystals in optoelectronics and laser technology it is necessary to know the direction of optical axes and types of oscillatory centers, which is a relevant and necessary condition. In this paper, the infrared spectra of transmission and absorption of hexagonal crystals of lithium iodate α-LiIO3, grown by open evaporation in H2O and D2O solutions, as well as natural lamellar crystals of phlogopite and muscovite monoclinic crystal are investigated. The band gap width of the investigated crystals is determined by transmission spectra. In the absorption spectra there were determined activation energy and wavelength of the oscillatory centers that are associated with the vibrations of protons, hydronium ions Н3О+, protium H+, OH groups and molecules HDO. The good correlation of the parameters of infrared spectra with the spectra of thermally stimulated depolarization currents and NMR spectra has shown. The possibility of diagnostics of types of oscillatory centers by means of infrared spectra is considered, which also allows to find out the direction of optical axes. The obtained results allow to use IR spectra to determine not only the types of vibrational centers, but also the presence of anisotropy of the crystal lattice of the studied crystals.
Endothelial loss during the surgical procedure in saphenous veins harvested by open and endoscopic techniques in coronary artery bypass surgery
Authors: Milutinović Aleksandra , Zorc-Pleskovič Ruda
Published: March 2020

The patency of the vein graft in coronary artery bypass grafting could be dependent on conventional (vsO) or endoscopic (vsE) harvesting and on the hypoxic damage of endothelial cells. We aimed to evaluate both surgical techniques according to endothelial loss that occurs in the time between harvesting and implantation. Twenty-six saphenous veins were divided into vsO (n = 16) and vsE (n = 10) group. Three samples were taken from each vein. The first sample was taken after removal, the second before implantation of the distal part, and the third before the implantation of the proximal part, and they were stained with HE, Movat, and immunohistochemically with CD31. A significant loss of endothelial cells within both groups was found at the time of implantation of the distal and the proximal part of the vein graft compared to the endothelial cells at the time of harvesting. There were no significant differences in the endothelial loss between vsE and vsO groups at the time of harvesting and at the time before the implantation of the distal part. A higher number of endothelial cells was found in vsE group compared to vsO group at the time just before the implantation of the proximal part. The comparison of the implanted portions of vsE and vsO grafts to mammary arteries revealed a significant loss of endothelial cells only in vsO graft. We conclude that, at the time of implantation, the endothelial layer of the vein graft harvested endoscopically is more preserved than harvested openly.