bluuebunny/crossref_metadata_2025 huggingface dataset:
Etnomatemática e a construção de uma educação multicultural na escola
Authors: Pacheco, Willyan Ramon de Souza Willyan Ramon de Souza Pacheco
Published: January 2021

Este estudo objetiva apresentar a Etnomatemática enquanto proposta pedagógica multicultural, que contribui no ensino de matemática a partir da utilização do jogo africano yoté, considerando a relevância de uma educação pautada no respeito às contribuições africanas e afrodescendentes na produção do conhecimento matemático e à potencialidade do trabalho docente na organização de estruturas curriculares inclusivas, antirracistas e não discriminatórias. Metodologicamente, o estudo se materializa a partir de uma abordagem qualitativa, do tipo teórico-reflexiva, em uma dimensão exploratória-analítica. Teoricamente, se assenta no pensamento de autores como Topázio (2013); Gerdes (2007); Libâneo (2007); Bueno (2001); D´Ambrosio (2001; 1996); Freire (2016; 2017), entre outros. Diante da discussão realizada, observa-se que uma educação multicultural é relevante no ensino de Matemática na perspectiva de contribuir para a descentralização do pensamento eurocêntrico na organização social do trabalho pedagógico e na visibilização de manifestações matemáticas culturais, historicamente situadas e contextualizadas a partir de uma perspectiva étnico-racial. A inserção de jogos africanos no processo de ensino e aprendizagem matemática caracteriza-se enquanto estratégia metodológica que possibilita a utilização de recursos lúdicos que explorem o processo de construção e mobilização do conhecimento matemático a partir de uma ótica descentralizada, permitindo o redimensionamento de abordagens pedagógicas hegemônicas eurocentristas e a ressignificação de modelos de ensino homogêneos.
Measurement sequences for magic state distillation
Authors: Haah Jeongwan , Hastings Matthew B.
Published: January 2021

Magic state distillation uses special codes to suppress errors in input states, which are often tailored to a Clifford-twirled error model. We present detailed measurement sequences for magic state distillation protocols which can suppress arbitrary errors on any part of a protocol, assuming the independence of errors across qubits. Provided with input magic states, our protocol operates on a two-dimensional square grid by measurements of ZZ on horizontal pairs of qubits, XX on vertical pairs, and Z,X on single qubits.
The Multi-round Process Matrix
Authors: Hoffreumon Timothée , Oreshkov Ognyan
Published: January 2021

We develop an extension of the process matrix (PM) framework for correlations between quantum operations with no causal order that allows multiple rounds of information exchange for each party compatibly with the assumption of well-defined causal order of events locally. We characterise the higher-order process describing such correlations, which we name the multi-round process matrix (MPM), and formulate a notion of causal nonseparability for it that extends the one for standard PMs. We show that in the multi-round case there are novel manifestations of causal nonseparability that are not captured by a naive application of the standard PM formalism: we exhibit an instance of an operator that is both a valid PM and a valid MPM, but is causally separable in the first case and can violate causal inequalities in the second case due to the possibility of using a side channel.
Management Patterns of Various Hepato-Pancreatic Diseases in Gastroenterology Department at a Tertiary Care Hospital.
Authors: Dr. Sattu Srinivas  , D.Vageeshwari  , Mallika Kaza  , Shreya Varanasi Prasanna
Published: January 2021

Hepato-pancreatic diseases  are the leading cause of deaths in  adults  globally. Proper  disease management  with various approaches can reduce the risk of mortality and providing more efficacious therapies for the patients is one of the most urgent needs hence, the present study is intended to observe and analyze the management patterns of hepato- pancreatic diseases in patients with and without complications and the impact of invasive procedures in management of hepato-pancreatic diseases. A prospective observational study was conducted for a period of 6 months from September 2018- February 2019 after obtaining permission from the Institutional Ethical committee of CMR College of Pharmacy. A total of 3 hepatic and 2 pancreatic diseases   were taken this study out of which 36 were Alcoholic liver disease   cases(ALD),   15 were Chronic liver disease cases(CLD), 8 were  Liver abscess cases(LA), 36 were Chronic pancreatitis(CP) cases and 25 were acute pancreatitis(AP) cases. These cases were observed predominance of males can be seen in our study which can be correlated with the fact that, alcohol consumption is the major cause for hepato-pancreatic diseases and its complications as alcohol consumption causes epigenetic changes that contribute to alcohol induced liver and pancreatic damage. The data were collected according to the inclusion criteria and the final analysis was done based on various parameters.  Data analysis showed that pharmacological management was applied in most of the cases (97%) and it was found to be effective instead of invasive procedures that were employed only in 3% of cases along with pharmacological management thereby reducing the burden of hospital on patients.
O “fazer ciência” na escola: relatos de uma experiência com o ensino fundamental
Authors: Vasques Daniel Giordani , Oliveira Victor Hugo Nedel
Published: January 2021

A iniciação científica na escola ganha cada vez mais relevância na contemporaneidade. O objetivo deste texto foi discutir uma experiência de Iniciação Científica (IC) com estudantes do 8º ano do Ensino Fundamental do Colégio de Aplicação da UFRGS, em 2019. Para tanto, analisam-se as etapas realizadas durante o processo da construção das pesquisas: atividades sobre ciência e identidade; assunto e pergunta de pesquisa; as justificativas; a metodologia e os referenciais. Por fim, apresentam-se as produções e aprendizados decorrentes do processo. Considera-se que a ação relatada possibilita colocar alunos como protagonistas nas relações de ensino-aprendizagem.
Educação especial e a Covid-19: o exercício da docência via atividades remotas
Authors: Torres Josiane Pereira , Borges Adriana Araújo Pereira
Published: January 2021

É apresentado um panorama da atuação de professores de educação especial frente as atividades remotas durante o período da pandemia da Covid-19. Professores que atuam na modalidade foram ouvidos através de um questionário autoaplicado. Os resultados apontam os desafios da adoção de atividades nesse formato, principalmente na utilização dos recursos tecnológicos. Enquanto o trabalho docente se intensificou, a participação dos estudantes diminuiu, evidenciando o impacto negativo desse momento na educação de alunos com deficiência.
Trabalho docente, feminização e pandemia
Authors: Araujo Sâmara Carla Lopes Guerra de , Yannoulas Silvia Cristina
Published: January 2021

O texto aborda os efeitos da pandemia no trabalho docente realizado na Educação Básica brasileira tendo em vista a especificidade de gênero. As mulheres foram desafiadas a se reinventar na batalha contra a pandemia do vírus SARS-CoV-2. Discutimos o trabalho docente na Educação Básica e a feminização na pandemia, recuperando conceitos caros dos estudos de gênero. São apresentados os dados desagregados por gênero da pesquisa realizada, em 2020, pelo Gestrado/UFMG, em parceria com a CNTE. A pesquisa demonstrou a agudização dos problemas de gênero imperantes antes da instauração da pandemia.
Mundo do trabalho, políticas educacionais e o direito à educação: o Ensino Médio Integrado nos Institutos Federais
Authors: Milliorin Simone Aparecida , Da Silva Monica Ribeiro
Published: January 2021

O artigo investiga a atuação dos institutos federais e do ensino médio integrado como política educacional em favor da ampliação do direito à educação. Foram analisados dados do Censo Escolar e do Relatório de Taxas de Rendimento dos campi que compõem os 38 institutos federais na série histórica de 2007 a 2017. Os resultados atestam a expansão e a interiorização, o aumento da oferta e o atendimento de populações antes não atendidas como fatores determinantes da democratização e efetivação do direito à educação. Nas considerações finais se problematiza esse cenário diante da atual reforma.
A topological approach to the study of COVID-19 pandemic: qualitative models for understanding and helping taking decisions
Authors: Rodríguez-Millán Jesús Salvador
Published: January 2021

Mathematical models are either strategic, simplified, to study global qualitative properties, or tactic, detailed, appropriate for fine quantitative adjustment to reality. When complex systems interact with their medium or undergo parameter perturbations, they can suffer changes of order making qualitative and quantitative studies difficult. Epidemiological processes allow distinguishing between topological and dynamical alterations, and establishing precedence among them. In this essay we approach COVID-19 this way, to separate topological transformations inducing changes of order in the system, from dynamic transformations themselves. We then develop a visual metaphor, a sequence of images to support a stop-motion, allowing distinguishing the stages, identifying and classifying sceneries, and suggest actions to improve the understanding and control, of the pandemic.
‘Everything is not everywhere’: time-calibrated phylogeography of the genus Milnesium (Tardigrada)
Authors: Morek Witold , Surmacz Bartłomiej , López Alejandro , Michalczyk Lukasz
Published: January 2021

There is ample evidence that macroscopic animals form geographic
clusters termed as zoogeographic realms (zones), whereas distributions
of species of microscopic animals are still poorly understood. The
common view has been that micrometazoans, thanks to their putatively
excellent dispersal abilities, are subject to the ‘Everything is
Everywhere but environment selects’ hypothesis (EiE). One of such
groups, <1 mm in length, are limnoterrestrial water bears
(Tardigrada), which can additionally enter cryptobiosis that should
further enhance their potential for long distance dispersion (e.g. by
wind). However, an increasing number of studies, including the most
recent phylogeny of a eutardigrade genus Milnesium, seem to question the
general applicability of the EiE hypothesis to tardigrade species.
Nevertheless, all the Milnesium phylogenies published to date were based
on a limited number of populations, which are likely to falsely suggest
limited geographic ranges. Thus, in order to comprehensively test the
EiE hypothesis, here, we considerably enlarged the Milnesium dataset
both taxonomically and geographically, and we analysed it in tandem with
climate type and reproductive mode. Additionally, we time-calibrated our
phylogeny to align it with major geological events. Our results show
that, although cases of long distance dispersal are present, they seem
to be rare and mostly ancient. Overall, Milnesium species are restricted
to single zoogeographic realms, which suggests that these tardigrades
have limited dispersal abilities. Finally, our results also suggest that
the breakdown of Gondwana may influenced the evolutionary history of
Milnesium. In conclusion, phylogenetic relationships within the genus
seem to be determined mainly by paleogeography.
Lymphomatoid granulomatosis of the central nervous system (CNS-LYG), immune thrombocytopenia, disseminated zoster and venous thrombosis: “Hickam’s dictum posing a management challenge”
Authors: Soleja Mohsin , Jaso Jesse , Chen Weina , Raisanen Jack , Wysocki Christian , Shen Yu-Min , Mickey Bruce , Kumar Kiran , Geethakumari Praveen Ramakrishnan
Published: January 2021

We describe a case of isolated primary CNS lymphomatoid granulomatosis
and a discordant low-grade B-cell lymphoma involving the bone marrow
causing chronic immune thrombocytopenia. Clinical course was complicated
with disseminated zoster and sub-massive pulmonary embolism. Our patient
was successfully managed with a combination radioimmunotherapy strategy
with rituximab and radiation therapy.
A novel mast cell-dependent allergic peritonitis model
Authors: Pahima Hadas , Puzzovio Pier Giorgio , Levi-Schaffer Francesca
Published: January 2021

Background: Typical murine models of allergic inflammation are induced
by the combination of ovalbumin and aluminum hydroxide. However,
accumulating evidence indicates that, in models of asthma and atopic
dermatitis, allergic inflammation can be generated in the absence of
aluminum hydroxide. Moreover, co-administration of S. aureus enterotoxin
B with ovalbumin can enhance inflammation. Objective: The objective of
this study was to establish a rapid and mast cell-dependent murine model
of allergic inflammation by inducing allergic peritonitis using
ovalbumin and S. aureus enterotoxin B. Methods: Allergic peritonitis was
induced in C57BL/6 mice by subcutaneous sensitization and
intraperitoneal challenge with ovalbumin and S. aureus enterotoxin B.
Disease characteristics were assessed by flow cytometry, ELISA, Trypan
Blue exclusion and colorimetric assays. Results: Time course of the
allergic peritonitis revealed a peak of peritoneal inflammation 48h
after challenge, as assessed by total cells and eosinophil counts.
Decrease of cell numbers started 96h post challenge with complete
clearance within 168h. Moreover, significantly higher levels of tryptase
and increased vascular permeability were found 30 min following
challenge. Allergic inflammation induction by ovalbumin and S. aureus
enterotoxin B was impaired in mast cells deficient mice and partially
restored by mice reconstitution with bone marrow derived mast cells,
indicating the mast cell role in this model. Conclusion: We present a
novel model of allergic peritonitis that is mast cell-dependent, simple
and robust. Moreover, the use of S. aureus enterotoxin B better
resembles human allergic inflammation, which is known to be
characterized by the colonization of Staphylococcus aureus.
Unbounded generalization of logarithmic representation of infinitesimal generators
Authors: Iwata Yoritaka
Published: January 2021

The logarithmic representation of infinitesimal generators is
generalized to the cases when the evolution operator is unbounded. The
generalized result is applicable to the representation of infinitesimal
generators of unbounded evolution operators, where unboundedness of
evolution operator is an essential ingredient of nonlinear analysis. In
conclusion a general framework for the identification between the
infinitesimal generators with evolution operators is established. A
mathematical framework for such an identification is indispensable to
the rigorous treatment of nonlinear transforms: e.g., transforms
appearing in the theory of integrable systems.
Factors influencing participation rates in clinical late effect studies of childhood cancer survivors
Authors: Helligsoe Anne Sophie , Henriksen Louise , Kenborg Line , Dehlendorff Christian , Winther Jeanette , Hasle Henrik
Published: January 2021

Introduction: Several studies on late effects of childhood cancer have
been conducted during the past decades. To ensure external validation of
a study population, the participation rate must be high. This study
investigated demographic data in late effect studies and potential
factors impacting on participation rates such as cancer type, time since
diagnosis and duration of clinical examinations. Procedure: By searching
the databases PubMed, Embase and Web of Science and by contacting
researchers and clinicians, we identified studies including an
invitation to a clinical examination for late effects after childhood
cancer. Studies conducted from January 2010 - March 2020 in the Nordic
countries were included. Results: We found 80 published studies
originating from 16 cohorts. The overall participation rates ranged
between 27 and 100%. The majority of studies (eleven studies) were
conducted more than ten years after the cancer diagnosis and primarily
on hematologic malignancies (seven studies). The highest participation
rates were seen in studies of survivors with solid tumors (92%) and the
lowest in survivors with hematologic malignancies (67%) and central
nervous system tumors (73%). Neither duration of the clinical
examination nor time since diagnosis seemed to affect the participation
rate. Conclusion: A trend of lower participation rates when recruiting
survivors of hematologic malignancies and central nervous system tumors
was found. We encourage future studies to describe the recruitment
process more thouroughly to improve understanding of the factors
influencing participation rates.
A Multicenter Study of Three-dimensional Echocardiographic Evaluation of Normal Pediatric Left Ventricular Volumes and Function
Authors: Jone Pei-Ni , Le Lisa , Pan Zhaoxing , Colen Tim , Shigemitsu Sachie , Khoo Nee Scze , Goot Benjamin , Parthiban Anitha , Harrild David , Ferraro Alessandra , Marx Gerald
Published: January 2021

Background: Three-dimensional echocardiography (3DE) evaluation of left
ventricular (LV) volume and function in pediatrics compares favorably
with cardiac magnetic resonance imaging. The aim of this study was to
establish from a multicenter, normal pediatric z-score values of 3DE
left ventricular volumes and function. Methods: Six hundred and
ninety-eight healthy children (ages 0 to 18 years) were recruited from
five centers. LV 3DE was acquired from the 4-chamber view. A vendor
independent software analyzed end-diastolic volume (EDV), end-systolic
volume (ESV), stroke volume (SV), and ejection fraction (EF) using
semi-automated quantification. Body surface area (BSA) based z-scores
were generated. Intraobserver and interobserver variability were
calculated using intraclass correlation (ICC) and repeatability
coefficient (RC). Results: Z-scores were generated for ESV, EDV, and SV.
The ICC for intraobserver variability for EDV, ESV, and SV were 0.99,
0.99, and 0.99 respectively. The ICC for interobserver variability for
EDV, ESV, and SV were 0.98, 0.94, and 0.98 respectively. The RC for
intraobserver and interobserver variability for LV EF was 4.39% (95%
CI: 3.01, 5.59) and interobserver was 7.08% (95%CI: 5.51, 8.42).
Conclusions: We report pediatric Z-scores for normal LV volumes using
the semi-automated method from five centers, enhancing its
generalizability. 3DE evaluation of LV volumes and EF in pediatric
patients is highly reproducible.
Invasive Validation of the Left Ventricular Global Longitudinal Strain for Estimating LV Filling Pressure
Authors: Tan Turkan , Akbulut irem Muge , Demirtola Ayse , Serifler Nazli Turan , Ozyuncu Nil , Vurgun Kutay , Esenboga Kerim , Kurklu Haci , Kozluca Volkan , Gerede Demet , Ozdemir Aydan Ongun , Tutar Eralp , Dincer Irem
Published: January 2021

Purpose: An elevated left ventricular (LV) filling pressure is the main
finding in patients with heart failure with preserved ejection fraction,
which is estimated with an algorithm using echocardiographic parameters
recommended by the recent American Society of Echocardiography
(ASE)/European Association of Cardiovascular Imaging (EACVI) guideline.
In this study, we sought to determine the efficacy of LV global
longitudinal strain (GLS) to estimate the elevated LV filling pressure.
Methods and Results: 73 prospectively selected patients undergoing left
ventricular catheterization (mean age 63.19±9.64, 68.5% male)
participated in this study. Using the algorithm, the LV filling pressure
was estimated with the echo parameters obtained within 24hrs before the
catheterization. The LV GLS was measured using the automated functional
imaging system (GE, Vivid E9 USA). Invasive LV pre-A pressure
corresponding to mean left atrial pressure (LAP) was used as a
reference, and >12 mm Hg was defined as elevated. The
invasive LV filling pressure was elevated in 43 (58.9%) and normal in
30 patients (41.1%). In 9 (12.3%) patients of 73 are defined as
indeterminate based on the 2016 algorithm. Using the ROC method, -18.1%
of LV GLS estimated the LV filling pressure (AUC=0.79, 73% specificity,
84% sensitivity) with higher sensitivity compared with the algorithm
(AUC=0.76, 77% specificity, 72% sensitivity). Conclusions: We
confirmed that the LV GLS is feasible and reproducible in estimating LV
filling pressure. In addition, LV GLS highly predicts elevated LAP as
E/e’ and TR jet velocity and may be used as major criteria for the
diagnosis of HFpEF
Simulation and analysis of the solidification characteristics of a Si-Mo ductile iron
Authors: Çelik G.A. , Tzini M.-I. , Polat Ş. , Aristeidakis J , Atapek Ş.H. , Sarafoglou P.I. , Haidemenopoulos G.N.
Published: January 2021

High silicon and molybdenum ductile cast irons (Si-Mo alloys) are commonly
used as exhaust manifold materials suffering from high temperature-oxidation
and thermal-mechanical fatigue. The structural integrity of cast Si-Mo
alloys under these service conditions is attributed to their microstructure
consisting of spheroidal graphite and Mo-rich carbide embedded in a ferritic
matrix. However, the cast structure includes also pearlite structure having
a detrimental effect on the mechanical properties, therefore the cast matrix
needs to be heat treated. In this study, the solidification of a Si-Mo
ductile iron was investigated using (i) thermodynamic and kinetic
calculations by Thermo-Calc and DICTRA software and (ii) thermal analysis in
order to reveal out the sequence of phase formation and the phase
transformations during solidification and (iii) microanalysis by energy
dispersive spectrometer in order to determine elemental segregation and
compare with the calculated values. The solidified structure was also
characterized and all microstructural features were specified.
When writer helps his translator
Authors: Nestorovic Zorica
Published: January 2021

Andric?s relationship with translators of his stories and novels discovers
his dedication to the question of language in his works. The correspondence
includes many answers given by writer to translators about semantics and
etymology of language use in his books. They upgrade his constantly care for
reception of his stories and novels also in native language as in foreign
language. This care is represented by explanation of some archaic word or
phrase in the footnote in the body of text and by vocabulary associated to
the book. All these shown Andric?s high valuating of the mission of
translating and his great respect for the translators and they work.
Poslanie Ioanna Raifskogo Ioannu Sinajskomuv Branicevskoj Lestvice i drevnejsih serbskih spiskah
Authors: Jovanovic Tomislav
Published: January 2021

Dannaja rabota posvjascena Poslaniju Ioanna Raifskogo Ioannu Sinajskomu v
Branicevskoj Lestvice XV v. i pjati drugih serbskih spiskah Lestvicy,
otnosjascihsja k XIV veku. V tekstologiceskom otnosenii po sravneniju s
Branicevskoj upomjanutye pjat' spiskov Lestvicy predstavljajut soboj otdel'nye
raznovidnosti literaturnogo pamjatnika. V Branicevskoj Lestvice vstrecajutsja
harakternye jazykovye i stilisticeskie osobennosti, otlicajuscie ee ot bolee
drevnih spiskov. Hotja v rabote nad okoncatel'noj redakciej Branicevskoj
Lestvicy prinimali ucastie afonskie monahi, special'no priglasennye po
poveleniju despota Georgija (Dzuradza) Brankovica, ona znacitel'no otlicaetsja
ot hilandarskih spiskov, kotorye starse ee na stoletie. Tekstologiceskie
razlicija mezdu spiskom Poslanija Ioanna Raifskogo Ioannu Sinajskomu v
Branicevskoj Lestvice i pjat'ju bolee drevnimi spiskami privedeny v izdanii
Poslanija, pomescennom v prilozenii k nastojascej rabote.
In memory of Salko Nazecic, Pavle Popovic’s student
Authors: Letic Branko
Published: January 2021

Published on the occasion of the centenary of Prilozi za knjizevnost, jezik,
istoriju i folklor, a journal founded by Pavle Popovic, this article is a
note on the life and work of Popovic?s student Salko Nazecic, who started
his academic research under Popovic?s supervision, just as other Popovic?s
followers did, attending Popovic?s seminars and publishing his works in
Popovic?s journal.
circRNA_010383 Acts as a Sponge for miR-135a, and Its Downregulated Expression Contributes to Renal Fibrosis in Diabetic Nephropathy
Authors: Peng Fenfen , Gong Wangqiu , Li Shuting , Yin Bohui , Zhao Chen , Liu Wenting , Chen Xiaowen , Luo Congwei , Huang Qianying , Chen Ting , Sun Lingzhi , Fang Shun , Zhou Weidong , Li Zhijian , Long Haibo
Published: January 2021

Diabetic nephropathy (DN), a vascular complication of diabetes, is the leading cause of death in patients with diabetes. The contribution of aberrantly expressed circular RNAs (circRNAs) to DN in vivo is poorly understood. Integrated comparative circRNA microarray profiling was used to examine the expression of circRNAs in diabetic kidney of db/db mice. We found that circRNA_010383 expression was markedly downregulated in diabetic kidneys, mesangial cells, and tubular epithelial cells cultured in high-glucose conditions. circRNA_010383 colocalized with miRNA-135a (miR-135a) and inhibited miR-135a function by directly binding to miR-135a. In vitro, the knockdown of circRNA_010383 promoted the accumulation of extracellular matrix (ECM) proteins and downregulated the expression of transient receptor potential cation channel, subfamily C, member 1 (TRPC1), which is a target protein of miR-135a. Furthermore, circRNA_010383 overexpression effectively inhibited the high-glucose–induced accumulation of ECM and increased TRPC1 levels in vitro. More importantly, the kidney target of circRNA_010383 overexpression inhibited proteinuria and renal fibrosis in db/db mice. Mechanistically, we identified that a loss of circRNA_010383 promoted proteinuria and renal fibrosis in DN by acting as a sponge for miR-135a. This study reveals that circRNA_010383 may be a novel therapeutic target for DN in the future.
Modulation of Leukocytes of the Innate Arm of the Immune System as a Potential Approach to Prevent the Onset and Progression of Type 1 Diabetes
Authors: Petrelli Alessandra , Atkinson Mark A. , Pietropaolo Massimo , Giannoukakis Nick
Published: January 2021

Type 1 diabetes (T1D) is characterized by insulin deficiency resulting from the selective destruction of pancreatic β-cells by self-reactive T cells. Recent evidence demonstrates that innate immune responses substantially contribute to the pathogenesis of T1D, as they represent a first line of response to danger/damage signals. Here we discuss evidence on how, in a relapsing-remitting pattern, pancreas remodeling, diet, microbiota, gut permeability, and viral/bacterial infections induce the accumulation of leukocytes of the innate arm of the immune system throughout the pancreas. The subsequent acquisition and presentation of endocrine and exocrine antigens to the adaptive arm of the immune system results in a chronic progression of pancreatic damage. This process provides for the generation of self-reactive T-cell responses; however, the relative weight that genetic and environmental factors have on the etiopathogenesis of T1D is endotype imprinted and patient specific. With this Perspectives in Diabetes, our goal is to encourage the scientific community to rethink mechanisms underlying T1D pathogenesis and to consider therapeutic approaches that focus on these processes in intervention trials within new-onset disease as well as in efforts seeking the disorder’s prevention in individuals at high risk.
Na-iyon Pillerin Anotlarında Karbon Nanoyapılarının Kullanımı Üzerine Bir Derleme
Authors: ÖZSİN Gamzenur
Published: January 2021

Günümüzde mobil cihazlar ve elektirikli araçların gitgide yaygınlaşması ile birlikte tekrar şarj edilebilen ikincil pillerin kullanımı artmaktadır. İkincil pillerden en yoğun olarak kullanılan lityum-iyon (Li-yon) pillerin sürdürülebilirliği hakkındaki endişeler ve dünyadaki sınırlı lityum rezervleri, yeni-nesil enerji depolama sistemleri hakkında yapılan bilimsel çalışmaları hızlandırmıştır. Bu noktada Li-iyon pillere alternatif olarak kullanılabilecek sodyum-iyon (Na-iyon) piller son derece umut verici elektrokimyasal enerji depolama cihazları olarak göze çarpmaktadır. Fakat bu pillerin ticarileşebilmesi için enerji ve güç yoğunluğu ile döngüsel kararlık gibi pek çok özelliklerinin iyileştirilmesi gerekmektedir. Na-iyon pilleri oluşturan her bileşenin üretim süreci ve elektrokimyasal performansı, bu malzemelerin yapı-özellik ilişkisi ve üretim koşullarına yüksek oranda bağlıdır. Bu nedenle, anot gibi her bir bileşenin yapısal özellikleri ile elektrokimyasal performansları arasındaki ilişkinin belirlenmesi ve en iyi performansı gösteren yapıların tasarlanması Na-iyon pillerin geliştirilmesi için kritik bir öneme sahiptir. Günümüzde Na-iyon pillerin anotlarında ucuz ve sürdürülebilir malzemelerin kullanımı hakkında yoğun ve umut verici çalışmalar yapılmasına rağmen, farklı malzeme grupları arasında, değişik grafitizasyon derecesi ve morfolojik özelliklere olabilen karbon esaslı malzemeler ve bunlardan üretilen kompozit malzemeler sıklıkla öne çıkmaktadır. Bu çalışmanın amacı, güncel literatür bulgularından yararlanılarak farklı karbonlu malzemelerin
Computational Treatment of First Order Delay Differential Equations Using Hybrid Extended Second Derivative Block Backward Differentiation Formulae
Authors: Chibuisi C. , Osu Bright Okore , Olunkwa C. , Ihedioha S. A. , Amaraihu S.
Published: January 2021

This paper considers the computational solution of first order delay differential equations (DDEs) using hybrid extended second derivative backward differentiation formulae method in block form without the implementation of interpolation techniques in estimating the delay term. By matrix inversion approach, the discrete schemes were obtained through the linear multistep collocation approach from the continuous form of each step number which after implementation strongly revealed the convergence and region of absolute stability of the proposed method. Computational results are presented and compared to the exact solutions and other existing method to demonstrate its efficiency and accuracy.
Examining the relationship between pre-service mathematics teachers’ mathematical thinking level and attitude towards mathematics courses
Authors: YILDIZ Avni , BALTACI Serdal , KARTAL Büşra
Published: January 2021

Abstract: This study is correlational research and aims to investigate the relationship between preservice mathematics teachers' mathematical thinking levels and attitudes for courses in mathematics. We also examined whether gender, reasons for career choice, and academic achievement lead to significant differences in pre-service teachers' attitudes and mathematical thinking levels. Participants are 109 senior pre-service mathematics teachers from three different state universities that have similar conditions. Participants are selected via convenience sampling. Seventy-nine of the participants are female, and 30 are male. "Attitude scale for courses in mathematics" and "Mathematical Thinking Scale" are used to collect data. Data were analyzed by using SPSS package program. Pre-service teachers are found to have moderate attitudes while their mathematical thinking levels are at a high-level in the sub-domains of higher-order thinking tendency, reasoning, and problem-solving and at a moderate level in the subdomain of mathematical thinking skill. Pre-service teachers' attitudes for courses in mathematics have a significant moderate relationship with higher order thinking tendency, and reasoning and have a significant and weak relationship with problem-solving.
Pre-Service Primary School Teachers' Pedagogical Content Knowledge on Quadrilaterals
Authors: ŞAHİN Ömer , BAŞGÜL Murat
Published: January 2021

Abstract: The aim of this study was to investigate pre-service primary school teachers’ (PPSTs) pedagogical content knowledge (PCK) on quadrilaterals. In this study, the PCK components of knowledge of understanding students (KUS) and knowledge of instructional strategies (KIS) were used. The participants of the study consisted of 83 PPSTs studying at the primary education department of a university in Turkey. The illustrative case study method was used, while six scenarios were used as the data collection tool developed by researchers. The data obtained from open-ended scenarios were analyzed by using the summative content analysis technique. As a result of the study, it was observed that the KUS of the PPSTs about quadrilaterals was not on the desired level. Moreover, the KIS of the PPSTs was also not on the desired level. As a result of the study, it was observed that, in the process of eliminating the mistakes of students, the PPSTs preferred mainly the "Direct Instructional" method, which is based on traditional approaches and centers the teacher.
Preservice Mathematics Teachers' Representation Transformation Competence Levels in the Process of Solving Limit Problems
Authors: KUZU Okan
Published: January 2021

Abstract: In this study, representations used by preservice mathematics teachers in the process of solving limit problems were determined, the inter-representation transformation competence levels were investigated and the relationship between them was examined. In this context, “Limit Representation Transformation Test” with a reliability of .908 was administered to 50 preservice teachers attending to a state university in the Central of Turkey. Preservice teachers had most difficulty in solving problems that had verbal representation inputs, especially they achieved low performances in transformation from verbal to numerical representation. Although, in general, they achieved the highest performance in the problem that had numerical representation input, they also achieved very high performances in the problems that had graphical and algebraic representation inputs. Specifically, they performed very well in the problems that required transformation from an algebraic representation to a verbal representation. Moreover, significant positive correlations were found among preservice teachers’ representation transformation competence levels.
CONSIDERATIONS ON THE AGE OF THE “GLIMEE” IN TRANSYLVANIA
Authors: FARCAS Sorina , URSU Tudor Mihai , POP Vasile Viorel , TANTAU Ioan , ROMAN Anamaria
Published: January 2021

The paper is a synthesis of the palynological studies that have addressed the age of landslides in Transylvania. We discuss the configuration of the paleo-vegetation in the respective areas, but also the probable factors, abiotic or biotic, which promoted the landslides and the relative period when they occurred in Transylvania. The analysis indicates two major periods of onset for landslides, the Pleistocene and Holocene.
Career Mentoring in Higher Education: Students’ Perceptions and Experiences
Authors: Dumulescu Daniela , Sarcă Diana Maria , Necula Constantin Valer
Published: January 2021

Nowadays, the process of building the career of emerging adults is embedded in the need for meaningful paths, connection, creativity and autonomy. Thus, the support services universities offer for students should incorporate subjective aspects of individual experiences such as targeting relevant goals, building meaningful learning experiences, promoting personal resources of adaptability. One of the most effective mechanism for positively influencing students’ career paths is mentoring, by helping them to successfully face the academic and life challenges and to build meaningful careers. The current study aims to investigate perceptions and experiences of seven undergraduate students, in order to understand the mentoring role in the development of a calling orientation in their career trajectory. Data was collected through one-to-one semi-structured interviews and thematic analysis was conducted. The findings revealed a mentoring approach that includes a career construction theory and calling-infused elements has positive effects on self-reflection, self-knowledge, proactive experiences and behaviours that maintain and strengthens the perception of the presence of calling. In other words, the support of a mentor facilitates the activation of personal resources and values the self-directed career oriented towards individualized results in the context of an uncertain and dynamic work environment.
Experimental Study of Some Properties of Knowledge Distillation
Authors: Szijártó A. , Lehotay-Kéry P. , Kiss A.
Published: January 2021

For more complex classification problems it is inevitable that we use increasingly complex and cumbersome classifying models. However, often we do not have the space or processing power to deploy these models.Knowledge distillation is an effective way to improve the accuracy of an otherwise smaller, simpler model using a more complex teacher network or ensemble of networks. This way we can have a classifier with an accuracy that is comparable to the accuracy of the teacher while small enough to deploy.In this paper we evaluate certain features of this distilling method, while trying to improve its results. These experiments and examinations and the discovered properties may also help to further develop this operation.
La esencia de la libertad en el enfrentamiento entre Jacobi y Schelling
Authors: Jacobs Wilhelm G.
Published: January 2021

La disputa entre Jacobi y Schelling sobre los conceptos fundamentales de fundamento y causa a propósito de las cosas divinas (1811/1812) será analizada con la intención de profundizar en la comprensión de la libertad.
Una mirada al futuro de la tecnología y del ser humano. Entrevista con Anders Sandberg
Authors: Sandberg Anders , Diéguez Antonio
Published: January 2021

Interview with Anders Sandberg, member of the Future of Humanity Institute at Oxford University and expert in human enhancement and transhumanism, about central topics in his works.
Observación y análisis de las acciones a balón parado en el fútbol profesional
Authors: Beas-Martínez MA
Published: January 2021

Utilizando la metodología observacional como medio, hemos analizado tres acciones a balón parado muy frecuentes en el fútbol como son los saques de esquina y los tiros libres directos e indirectos, con el fin de elaborar y generalizar una herramienta de observación. El registro de los datos se realizó sobre partidos de la UD Almería de la temporada 2006–2007 en la 2ª división nacional. Para ello se ha utilizado un diseño nomotético de seguimiento y se ha realizado un registro intermitente con codificación de los datos como multieventos, haciéndose posteriormente un análisis de la calidad del dato para asegurar la fiabilidad del registro, donde los datos fueron sometidos a un análisis de componentes de varianza y a un análisis de generalizabilidad. Como conclusiones podemos destacar la confirmación de la fiabilidad y generalizabilidad de la herramienta de observación construida y la inexistencia de diferencias significativas en el comportamiento general de los equipos observados en los saques de esquina y tiros libres directos e indirectos.
Influencia del índice de masa corporal en la agilidad en la infancia
Authors: Pardo López D
Published: January 2021

El presente trabajo tiene como principal objetivo investigar la influencia que podría llegar a tener un índice de masa corporal (IMC) elevado en niños y niñas del primer ciclo de primaria respecto a la agilidad.Para comprobar dicha influencia se seleccionó una muestra de 67 alumnos y alumnas de entre 6 y 8 años de edad siendo el 50,8% del género femenino y el 49,2% del género masculino. A ambos grupos se les practicó el test de agilidad Illinois, también se les tomó la talla y el peso para calcular su IMC basándonos en la tabla de referencias de Tim Cole (2000), además se preguntó otra cuestión sobre la práctica de ejercicio fuera del ámbito escolar. Finalmente se presentaron los datos estadísticos teniendo en cuenta los resultados obtenidos, sacando todas las variables posibles para poder obtener la mayor información posible.
Comparison of coronary artery bypass graft versus drug-eluting stents in dialysis patients: an updated systemic review and meta-analysis
Authors: Prasitlumkum Narut , Cheungpasitporn Wisit , Sato Ryota , Thangjui Sittinun , Thongprayoon Charat , Kewcharoen Jakrin , Bathini Tarun , Vallabhajosyula Saraschandra , Ratanapo Supawat , Chokesuwattanaskul Ronpichai
Published: January 2021

Introduction

As percutaneous coronary intervention (PCI) technologies have been far improved, we hence conducted an updated systemic review and meta-analysis to determine the comparability between coronary artery bypass graft (CABG) and PCI with drug-eluting stent (DES) in ESRD patients.

Methods

We comprehensively searched the databases of MEDLINE, EMBASE, PUBMED and the Cochrane from inception to January 2020. Included studies were published observational studies that compared the risk of cardiovascular outcomes among dialysis patients with CABG and DES. Data from each study were combined using the random-effects, generic inverse variance method of DerSimonian and Laird to calculate risk ratios and 95% confidence intervals. Subgroup analyses and meta-regression were performed to explore heterogeneity.

Results

Thirteen studies were included in this analysis, involving total 56 422 (CABG 21 740 and PCI 34 682). Compared with DES, our study demonstrated CABG had higher 30-day mortality [odds ratio (OR) 3.85, P = 0.009] but lower cardiac mortality (OR 0.78, P < 0.001), myocardial infarction (OR 0.5, P < 0.001) and repeat revascularization (OR 0.35, P < 0.001). No statistical differences were found between CABG and DES for long-term mortality (OR 0.92, P = 0.055), composite outcomes (OR 0.88, P = 0.112) and stroke (OR 1.49, P = 0.457). Meta-regression suggested diabetes and the presence of left main coronary artery disease as an effect modifier of long-term mortality.

Conclusion

PCI with DES shared similar long-term mortality, composite outcomes and stroke outcomes to CABG among dialysis patients but still was associated with an improved 30-day survival. However, CABG had better rates of myocardial infarction, repeat revascularization and cardiac mortality.
PENDAMPINGAN PEMBUATAN TUNGKU SEKAM BERDASARKAN VARIASI BAHAN, JUMLAH DAN DISAIN SIRIP DI PEKON PANJEREJO KABUPATEN PRINGSEWU
Authors: INDRIYANI INDRIYANI , DALIMUNTHE RUSLAN , YAMIN YULIANA , PRATAMA AGUS
Published: January 2021

Tumpukan sekam yang belum dimanfaatkan secara optimal setelah dilakukan pemisahan sekam dengan beras yang telah dikemas melalui kantong plastik, karung ataupun sejenisnya oleh Kelompok Masyarakat Home Industry “Panjerejo”. Optimalisasi pemanfaatan sekam diantaranya dilakukan pendampingan untuk pembuatan tungku sekam berdasarkan variasi bahan, jumlah dan disain sirip untuk memanaskan air ataupun membakar bata yang dikelola oleh kelompok masyarakat dengan menitikberatkan kepada pengembangan usaha mikro yang beranggotakan 20 orang. Metode pelaksanaan program yang telah dilaksanakan adalah pendampingan pembuatan tungku sekam berdasarkan variasi bahan, jumlah dan disain sirip selama enam bulan pada Kelompok Masyarakat Home Industry “Panjerejo” di Dusun 1 dan Dusun 2. Upaya pendampingan ini sangat memberikan manfaat kepada kelompok masyarakat, sehingga untuk memasak air, membakar bata dan keperluan lainnya terjadi sistem sirkulasi renewable energy (energi terbarukan) dengan memanfaatkan tungku sekam.
Perlindungan Hukum Terhadap Anak Yang Lahir Dari Perkawinan Perempuan Hamil
Authors: Amnawati Amnawati , Lukman Lukman
Published: January 2021

Perkawinan perempuan yang sedang hamil dibawah usia kandungan 6 bulan adalah anak sah dan dilindungi menurut hukum negara. Oleh karena itu anak tersebut berhak mendapatkan semua haknya. Setelah direvisinya Pasal 43 UUP anak yang lahir di luar perkawinan sah bisa mendapatkan mengajukan  hak-haknya dari bapak biologisnya sepanjang dapat dibuktikan dengan teknologi dan ilmu pengetahuan bahwa seseorang adalah ayah biologisnya dipengadilan.
INFLUENCE OF LEADERSHIP AND WORK MOTIVATION TOWARD TEACHER PERFORMANCE IN JUNIOR HIGH SCHOOL ANGKASA ASTRA KSETRA
Authors: . Nuraeni , Parela Epi
Published: January 2021

The purpose of this study was to study leadership and work motivation towards teacher performance in SMP Angkasa Astra Ksetra, Tulang Bawang Regency. This type of research includes the type of quantitative descriptive research, the explanation of this research results in making systematic, factual, and accurate reports about facts and facts. This study used 22 research respondents. There are three variables in this study, namely: 2 (two) Independent variables (Xi and X) and 1 (one) variable that supports leadership (Xi) and work motivation (X) as independent variables and Gum (Y) performance as supported variables. From the results of data processing, the following hypotheses have been found. There is the influence of leadership (Xi) on teacher performance (Y), with a level of influence (R-square) of 81.3%. Related to work motivation (X) to teacher performance (Y), with a level of influence of 90.3%. With the influence of leadership (Xi), work motivation (X) with teacher performance (Y), with an influence level of 90.6%.
ANALYSIS OF LEADERSHIP STYLES AND ORGANIZATIONAL CULTURE IN EFFORTS TO IMPROVE EMPLOYEE PERFORMANCE EDUCATION AND CULTURE OF PESAWARAN DISTRICT
Authors: . Aprianis , Yulia Yosi
Published: January 2021

The purpose of the research in this thesis is to examine the influence of Leadership Style and Organizational Culture on employee performance in the Department of Education and Culture of Pesawaran District. This study uses a survey research method with 65 respondents. This analysis uses qualitative analysis and data processing using the SPSS program. The results showed that the Leadership Style had a positive effect on employee performance with the effect of a contribution of 69.4%. Furthermore, Organizational Culture also has a positive influence on employee performance with a contribution of 68.3%. The regression test shows that there is a positive influence between Leadership Style and Organizational Culture on employee performance. The magnitude of the influence of the two variables X1 and X2 on Y is 78.9%, the remaining 21.
Bio-charge Elastic Characterization for A Qualitative Perspective of Innovative Bio-Composite Materials
Authors: M. Jammoukh  , K. Mansouri  , B. Salhi  , E. Abtal
Published: January 2021

In order to save natural resources, recycling necessarily becomes a top priority for all of us, to save exhaustible resources, produce green energy and preserve the environment.In this perspective, we are trying to valorize a waste of animal origin, largely neglected by the actors of materials, through an industrial transformation into a biological charge to make new sustainable bio-composite materials.Using a tensile test bench, we try to mechanically characterize this biomaterial of renewable resources that, unlike eco-composites, has been neglected by the material actors.Obtained from waste, with a high recycling potential and from renewable resources, the bio-charge to be analyzed will be injected, later in different polymer materials in order to support the evolution of their physicochemical properties: resistance to elongation, wear, heat, corrosion, etc.Consequently, we will be able to contribute to an eco-design of sustainable materials with safeguarding exhaustible resources and preserving our environment
Iraqi Digital Art: Origin and Evolution
Authors: Sanaa Mohsin
Published: January 2021

The current challenge facing our age is the information digitization, at the same time, there is a huge development in the interdisciplinary of technologies with sciences. In the last few years, the World witnessed a number of information challenges with different dimensions, including digital dimensions, which are called the digital world and the virtual world for authors and movie writers. Consequently, the digital art concept emerged that utilizes the computer in an efficient way and as a new technique for drawing. This art is considered a great leap for modern art. The influence of digital technology transformed traditional arts like painting and sculpture into new forms, from pure arts to virtual reality. The most important characteristics and advantages are reflected in saving time, effort, cost and area. Digitally, art would enrich Iraqi culture by employing Iraqi creativity. This paper targets the concept of digital art, characteristics of art in virtual society and presenting the history – origins and evolution – of digital art. A group of paintings have been created using Photoshop Cc, Photo Shop C5 and Art Rage programs.