bluuebunny/crossref_metadata_2025_split huggingface dataset:
Stimulation and cognitive function in short-stature preschoolers
Authors: Dewi Ika Citra , Sekartini Rini , Gunardi Hartono , Nurdin Asrawati 
Published: April 2021

Background Normal-height children generally have better cognitive function than growth-stunted, short-stature children. Children’s cognitive function reportedly improves with stimulation. However, a correlation between stimulation and cognitive function in children with a history of short stature remains unclear.
Objective To assess correlation between stimulation and cognitive function in normal-height vs. short-stature preschool children.
Methods A cross-sectional study with consecutive sampling was performed in four sub-district areas in Jakarta. Preschool-aged children and their primary caregivers from previous studies on short stature were eligible for inclusion. An Indonesian version of a questionnaire was used to assess stimulation. A psychologist assessed verbal IQ (VIQ), performance IQ (PIQ), and full-scale IQ (FSIQ) with the Indonesian version of the Wechsler Preschool and Primary Scale of Intelligence (WPPSI). Data were analyzed using Pearson’s correlation and Chi-square tests, and P values <0.05 were considered to be significant.
Results Of 62 subjects, 64.5% had normal height and 35.5% had short stature. Both normal-height and short-stature children had similar IQ outcome and history of stimulation. The stimulation was significantly correlated with FSIQ in normal-height children (r= 0.316; P=0.047), but not short-stature children (r=0.049; P=0.828). However, the percentage differences in VIQ, PIQ, and FSIQ between normal-height and short-stature children were not significant (P=0.409, 0.119 and 0.877, respectively).
Conclusion There is a significant correlation between stimulation and IQ in normal-height children. Short-stature preschoolers were not worse in terms of IQ than normal-height preschoolers. Parents and caregivers should be encouraged to provide regular and adequate stimulation to their young children.
Hypovitaminosis D as a risk factor for severe autism spectrum disorder
Authors: Undang Diyah Rakanita , Sitaresmi Mei Neni , Naning Roni 
Published: April 2021

Background Vitamin D is an important risk factor for autism spectrum disorder (ASD). However, research on hypovitaminosis D as a risk factor for severe ASD has been limited. To our knowledge, no such studies have been done in Indonesia.
Objective To evaluate hypovitaminosis D as a risk factor for severe ASD.
Methods This cross-sectional study included children aged 2-18 years who fulfilled the ASD DSM-5 diagnostic criteria. Subjects were consecutively sampled from April - June 2019 at the Child Growth and Polyclinic, Dr. Sardjito General Hospital, Yogyakarta. Assessment of ASD severity was carried out using the Childhood Autism Rating Scale Second Edition (CARS-2) questionnaire. Serum 25(OH)D examination was done in the Clinical Laboratory, Dr. Sardjito General Hospital.
Results Of 36 children with ASD, 36.1% had hypovitaminosis D (<30 ng/mL) and 69.4% had severe ASD, based on the CARS-2 questionnaire (≥37-60). Bivariate analysis revealed that children with hypovitaminosis D had more severe CARS-2 values ​​(92.3%) compared to those with normal vitamin D levels (56.5%) (PR 1.633; 95%CI 1.10 to 2.42; P=0.031). Multivariate analysis with logistic regression revealed that hypovitaminosis D increased the risk of severe ASD (PR 1.65; 95%CI 1.06 to 2.56; P=0.037). However, other variables such as gender, parental education, attention deficit and hyperactivity disorder (ADHD), epilepsy, sleep disorders, pharmacotherapy and non-pharmacotherapy had no significant relationships with severe ASD.
Conclusion Children with ASD and hypovitaminosis D have a 1.65 times higher risk of severe ASD compared to children with ASD and sufficient vitamin D levels. We recommend that children with ASD undergo serum 25(OH)D monitoring.
Usage of Information Technology and Business Analytics within Sales and Operations Planning: A Systematic Literature Review
Authors: Nicolas Frédéric Niko Patrice , Thomé Antônio Márcio Tavares , Hellingrath Bernd 
Published: April 2021

Goal: This paper aims to analyze to which extend the usage of information technology (IT) and business analytics (BA) have been explored in the context of sales and operations planning (S&OP).
Design / Methodology / Approach: This study conducts a systematic literature review to synthesize the state of the art of IT and BA in S&OP. The review follows the rigorous approach by Thomé et al. (2016). Through the literature search, 442 results were retrieved, of which 57 were selected for the analysis. The results containing analytics techniques are classified by the planning tasks of S&OP that they address.
Results: The analysis provides an overview of the dominant themes in the field of IT, BA and S&OP and leads to a classification of the existing research in the field of BA for S&OP. This study finds that IT can be an enabler of S&OP and that most analytics techniques address S&OP through fully-integrated optimization approaches. Yet, the impact on the S&OP process has not been explored. This study thus identifies gaps for future research and proposes a research agenda on BA on S&OP.
Limitations of the investigation: The systematic literature review is restricted to the Elvesier SCOPUS database. SCOPUS has excellent coverage regarding relevant journals for this study. Despite SCOPUS being a prominent scientific database, other databases might reveal additional studies and further insights.
Practical implications: The findings of this study provide insights on how IT and BA can support and influence the S&OP process.
Originality/Value: In recent years, S&OP, IT and BA have seen a growing interest by scholars. To the best of the authors' knowledge, the number of published literature reviews on S&OP and BA is scarce. This study provides an overview of how IT and BA are used within S&OP.
Novel control strategy for non-minimum-phase unstable second order systems: generalised predictor based approach
Authors: Bhaskaran Anil , Ediga Chandramohan Goud , Ambati Seshagiri Rao 
Published: April 2021

Abstract
A control structure based on generalized predictor is proposed to control non-minimum phase unstable second order processes with time delay. The scheme contains a predictor structure and a direct synthesis method based primary controller for servo tracking. The predictor structure consists of two filters acting on input and current output which are designed to provide noise attenuation and disturbance rejection. A set-point filter minimises the overshoot caused by the introduction of additional zeros of the controller in the overall closed loop transfer function so as to smooth the tracking performance. Different second order unstable time delay systems are considered and Integral Absolute Error (IAE) and Total Variation (TV) measures are used for comparing the performances quantitatively. The method is implemented experimentally on an inverted pendulum. The proposed predictive strategy is found to provide enhanced control performances in comparison to the existing literature methods.
CTU findings of duplex kidney in kidney: A rare duplicated renal malformation
Authors: Xie Nanai , Huang Xu , Zhou Jie , Zhang Heng , Ma Wanling 
Published: April 2021

AbstractDuplex kidney is a common congenital malformation appeared as duplication of pelvis and ureter. However, renal duplication within sinus renalis is an extremely rare variation of the renal collecting system. In this study, we report a case of an asymptomatic kidney disease in a 33-year-old man, who demonstrates abnormal echo of renal sinus anomaly discovered incidentally in ultrasound examination. Computed tomography urography (CTU) exhibited the other small duplex kidney located in renal sinus. In the excretory phase images, the contrast medium within its small renal pelvis could be seen to flow into the right major renal calices. This case exhibited a very rare anatomical variation of duplicated renal malformation.
An effective thermal conductivity and thermomechanical homogenization scheme for a multiscale Nb3Sn filaments
Authors: Zhao Xiaoyu , Wang Guannan , Chen Qiang , Duan Libin , Tu Wenqiong 
Published: April 2021

Abstract
A comprehensive study of the multiscale homogenized thermal conductivities and thermomechanical properties is conducted towards the filament groups of European Advanced Superconductors (EAS) strand via the recently proposed Multiphysics Locally Exact Homogenization Theory (LEHT). The filament groups have a distinctive two-level hierarchical microstructure with a repeating pattern perpendicular to the axial direction of Nb3Sn filament. The Nb3Sn filaments are processed in a very high temperature between 600 and 700°C, while its operation temperature is extremely low, −269°C. Meanwhile, Nb3Sn may experience high heat flux due to low resistivity of Nb3Sn in the normal state. The intrinsic hierarchical microstructure of Nb3Sn filament groups and Multiphysics loading conditions make LEHT an ideal candidate to conduct the homogenized thermal conductivities and thermomechanical analysis. First, a comparison with a finite element analysis is conducted to validate effectiveness of Multiphysics LEHT and good agreement is obtained for the homogenized thermal conductivities and mechanical and thermal expansion properties. Then, the Multiphysics LEHT is applied to systematically investigate the effects of volume fraction and temperature on homogenized thermal conductivities and thermomechanical properties of Nb3Sn filaments at the microscale and mesoscale. Those homogenized properties provide a full picture for researchers or engineers to understand the Nb3Sn homogenized properties and will further facilitate the material design and application.
Semiotics East and West: an aesthetic-semiotic approach to translating the iconicity of classical Chinese poetry
Authors: Zhao Guangxu 
Published: April 2021

AbstractFor some Western translators before the twentieth century, domestication was their strategy to translate the classical Chinese poetry into English. But the consequence of this strategy was the sacrifice of the ideogrammatic nature of these poems. The translators in the twentieth century, especially the Imagist poets and translators in the 1930s, overcame the problems of their predecessors by developing their translation theory and practice in ways that are close to those of many contemporary semiotic translators. But both Imagist translators and contemporary semiotic translators have the problem of indifference to the feeling of the original in their translations.For the problem of translating the classical Chinese poetry by the Westerners before the twentieth century and the Imagist poets and translators of the twentieth century, see Zhao and Flotow 2018.This paper attempts to set up an aesthetic-semiotic approach to the translation of the iconicity of classical Chinese poetry on the basis of the examination of both Eastern and Western translation studies.
Die „drohende Gefahr“ als Schlüsselbegriff einer Sekuritisierung des Rechts
Authors: Kretschmann Andrea , Legnaro Aldo 
Published: April 2021

ZusammenfassungDie Vorstellung von drohenden Gefahren im Sinne bloß vermutbarer, zukünftiger Gefahren noch diffusen Charakters wird im Polizeirecht und der polizeilichen Praxis immer verbreiteter. Solche Gefahren stellen zuerst einmal eine Imagination des Gesetzgebers, in der Praxis dann aber auch der Sicherheitsbehörden dar und sind in ihrer (rechtlich) begrifflichen Vagheit besonders geeignet, exekutive Ermächtigungen durchzusetzen, die eine neuartige polizeiliche Verfügungsmacht über Zeit und Raum und damit einhergehend eine Flexibilisierung von Kontrolle beinhalten. Das bringt im Ergebnis eine Sekuritisierung des Rechts mit sich, wie wir exemplarisch am Konzept des Gefährders, am Konzept der drohenden Gefahr in den neuen Polizeigesetzen und den Methoden despredictive policingzeigen, die alle in einer Vorstellung von abstrahierten bzw. unkonkret drohenden Gefahren ihren gemeinsamen Fluchtpunkt haben und diese entweder personalisieren, generalisieren oder lokalisieren. Das eröffnet einem „governing through crime“ (Simon) neuartige Möglichkeiten und lässt sich als Zeichen einer weitgefassten präventiven Sekuritisierung lesen, die nicht ohne totalitäre Gefahren ist.
Need for Speed: Die neue Beschleunigungsfreude im Strafverfahren am Beispiel der Untersuchungshaft
Authors: Morgenstern Christine 
Published: April 2021

ZusammenfassungSowohl nach nationalem wie nach europäischem Recht gelten für die Untersuchungshaft als ultima ratio der Verfahrenssicherung strenge Anordnungsvoraussetzungen, die von den Gerichten in einer komplexen Prüfstruktur festzustellen sind. Ebenso finden sich normative Verpflichtungen, Strafverfahren in Haftsachen zügig und gegenüber anderen Verfahren beschleunigt einer Klärung zuzuführen. Der Beitrag erhellt, dass in der Praxis zunehmend das eine Prinzip gegen das andere ausgespielt wird und das Bedürfnis, Verfahren schnellstmöglich zu erledigen, die Notwendigkeit einer gründlichen Prüfung der Haftvoraussetzungen überlagert. Augenfällig ist dies für Verfahren eher leichter Kriminalität gegen sozial marginalisierte ausländische Tatverdächtige. Dieser länderübergreifende Befund wird anhand von Ergebnissen einer vergleichenden empirischen Studie zur Untersuchungshaftvermeidung in sieben europäischen Staaten dargestellt. Die beobachtete neue Beschleunigungsfreude lässt sich Erscheinungen der Ökonomisierung und Marginalisierung des Rechts zuordnen, die durch gesetzlich verankerte oder kriminalpolitisch geforderte Möglichkeiten, Strafverfahren zu „effektivieren“, begünstigt werden.
Tumor growth rate in pancreatic neuroendocrine tumor patients undergoing PRRT with 177Lu-DOTATATE
Authors: Pettersson Olof Joakim , Fröss-Baron Katarzyna , Crona Joakim , Sundin Anders 
Published: April 2021

Background
Monitoring of pancreatic neuroendocrine tumors (PanNET) undergoing peptide receptor radionuclide therapy (PRRT) with 177Lu-DOTATATE depends on changes in tumor size, which often occur late. Tumor growth rate (TGR) allows for quantitative assessment of the tumor kinetics expressed as %/month. We explored how TGR changes before and during/after PRRT and evaluated TGR as a biomarker for progression-free survival (PFS).

Methods
In PanNET patients undergoing PRRT with 177Lu-DOTATATE from 2006 to 2018, contrast-enhanced CT or MRI was performed before and during the therapy. Patients with at least one hypervascular liver metastasis were included. TGR was calculated for the period preceding treatment and for two intervals during/after PRRT. Cox regression was used for the survival analysis.

Results
Sixty-seven patients (43 men, 24 women), median age 60 years (range 29–77), median Ki-67 10% (range 1–30) were included. TGR before baseline (n = 57) (TGR0) was mean (s.d.) 6.0%/month (s.d. = 8.7). TGR at 4.5 months (n = 56) (TGR4) from baseline was −3.4 (s.d. = 4.2) %/month. TGR at 9.9 months (n = 57) (TGR10) from baseline was −3.0 (s.d. = 2.9) %/month. TGR4 and TGR10 were lower than TGR0 (TGR4 vs TGR0, P < 0.001 and TGR10 vs TGR0, P < 0.001). In the survival analysis, patients with TGR10 ≥ 0.5%/month (vs <0.5%/month) had shorter PFS (median = 16.0 months vs 31.5 months, hazard ratio 2.82; 95% CI 1.05–7.57, P = 0.040).

Discussion
TGR in PanNET patients decreases considerably during PRRT with 177Lu-DOTATATE. TGR may be useful as a biomarker to identify patients with the shortest PFS.
Manufacturing and Processing of Carbon Nanotubes for H2 Storage
Authors: Namitha R. , Radhika Devi , Kannan Karthik , Krishnamurthy G. 
Published: April 2021

In pursuit of manufacturing of carbon nanotubes (CNTs) in good yield at lower temperatures, a mixture of d-block elements such as Iron, Nickel, and Cobalt was expected to be advantageous because of the high yield and low temperature (at 220 - 250° C) synthesis. The physical state and aggregation of these catalyst particles in the reaction medium have been found to play an interesting role in obtaining CNTs at better yield. Carbon nanotubes have been successfully produced by an uncomplicated two-step solvothermal method between sodium and dichlorobenzene via Ni/Fe/Co as catalyst precursor. The dependence of yield of CNTs on the catalyst system was determined via different ratios of catalysts and at various other experimental conditions such as different heating temperatures, different durations of heating. The X-ray powder diffraction study has indicated the graphite kind of the products. Microscopic characterizations (SEM and TEM) implied us the diameters of carbon nanotubes are 10-14 nm. Raman spectroscopy shows the presence of graphitized carbon in carbon nanotubes. Significant influence by the heating temperature and heating duration has been observed on the product yield.
Substitution of Ca2+ in Calcite by Sn2+ and Sr2+ cations through ion exchange characterized by X-ray absorption and photoelectron spectroscopies
Authors: Junio Jonathan B. , Chirawatkul Prae , Conato Marlon T. , Mercado Candy C. 
Published: April 2021

AbstractTin (Sn2+) and strontium (Sr2+), two potential alternatives to lead (Pb2+) in perovskite formation, were explored in transforming calcium carbonate (CaCO3) into a leaving group in a cation exchange reaction. This is the first part of a sequential ion exchange process in transforming calcite into a Pb-free perovskite material for perovskite solar cell applications. Calcite, a polymorph of CaCO3, was successfully transformed into strontianite (SrCO3) through a cation exchange reaction. In the Sn substitution reaction on the other hand, no SnCO3 formation was noted. Instead, oxides of Sn were formed. The wider spaces in between Ca2+ cations in (100) orientation account for the higher atomic Sn2+ and Sr2+ concentrations as compared to (001) orientation, where the cation movement is restricted. X-ray absorption and photoelectron spectroscopies were used to investigate the ion-exchange transformation of calcite towards the formation of an intermediate carbonate material.
Graphic abstract
Custo corrente por aluno e desempenho acadêmico dos estudantes das universidades federais brasileiras
Authors: Garcia de Oliveira Joice , Mendes Silva Marlon , Barbosa Neto João Estevão 
Published: April 2021

Objetivo: Investigar a relação entre o nível de recursos das universidades federais e o desempenho acadêmico dos alunos de graduação.
Método: A amostra foi composta por dados de 59 IES federais no período de 2015 a 2017 e a técnica aplicada foi a regressão múltipla com dados em painel. Para medir o desempenho acadêmico do estudante foi utilizada a nota no ENADE e os gastos das IES foram mensurados pelas despesas executadas no ano. Além dessas, foram incluídas no modelo variáveis inerentes ao perfil do estudante.
Resultados: Verificou-se que não há relação estatisticamente significativa entre as despesas por aluno e o desempenho acadêmico. Além disso, destaca-se que as variáveis sociodemográficas também apresentaram relação com o desempenho do aluno no ENADE.
Contribuições: Este artigo pode contribuir com o desenvolvimento de políticas públicas por parte do governo federal voltadas para a educação. Além disso, as próprias instituições de ensino superior públicas podem identificar caminhos para definição de políticas e tomada de decisões em busca de um equilíbrio entre eficiência e eficácia dado os recursos disponíveis. Ademais, espera-se que contribua para a sociedade como meio de controle social e atenção aos níveis de despesas das instituições públicas de ensino superior do país.
Reflexões sobre a viabilização de survey como abordagem metodológica para pesquisa em controle gerencial
Authors: Frezatti Fabio , Beck Franciele , Magalhães Mucci Daniel , Schlup Daiani 
Published: April 2021

Objetivo: a proposta do estudo é discutir a viabilização de survey face às demandas enfrentadas no processo de investigação na área de ciências sociais aplicadas. A motivação decorre da necessidade de aperfeiçoamento da forma de obtenção de dados que não estão disponíveis em bases prontas, por serem específicos, qualitativos ou entendidos como confidenciais, sem que isso represente perda de rigor científico.
Método: o estudo baseou-se no action research, que proporciona, por meio da pesquisa da pesquisa, aprendizado e aperfeiçoamento do método survey.
Resultados: chamam a atenção para (i) a importância da definição da população-alvo e amostra, o que passa pela necessidade de escolha dos critérios de agregação e os meios de acesso às empresas; (ii) a operacionalização da coleta de dados em si, em que se observou a necessidade de comunicação objetiva e a sensibilização do respondente com a prática dos lembretes, pelo LinkedIn® e (iii) a importância da lógica de comunidade de pesquisa, associada ao estabelecimento e cumprimento do contrato de pesquisa.
Contribuições: o estudo discute soluções metodológicas, em relação à abordagem survey, para os problemas vivenciados pelos pesquisadores. Quanto ao impacto, pesquisas que não são desenvolvidas poderiam ser apresentadas e discutidas proporcionando incremento de conhecimento na comunidade.
De “0 A 1” – Qual é a “Sofisticação Financeira” do Diretor Presidente?
Authors: Bortoli Cassiana , Oliveira Soares Rodrigo 
Published: April 2021

Objetivo: A literatura aponta evidências acerca da importância da expertise financeira do CEO para subsidiar a tomada de decisão visando maximizar o valor da empresa. Assim, o objetivo do artigo é respaldar teoricamente a formação do construto “Sofisticação Financeira”, propondo três métricas para mensurá-la, além de compartilhar proposições de estudos contemporâneos.
Método: Estudos anteriores deram suporte para a elaboração do constructo de Sofisticação Financeira. Após a identificação e coleta das características acadêmicas e profissionais, aplicou-se a técnica de Análise Fatorial do tipo Análise de Componentes Principais para efetuar a composição dos índices.
Resultados: As características de formação acadêmica e experiência profissional relacionado a finanças que alicerçaram a formação do construto foram: Formação – Internacional e Financeira; e Experiência – Ramo, Setor Financeiro, Diretor Financeiro, CEO, Internacional, e Elevada Hierarquia em Outra Empresa. A partir desses, o estudo desenvolve três índices: Sofisticação Financeira Acadêmica, Sofisticação Financeira Profissional e Sofisticação Financeira (contemplando ambas as dimensões).
Contribuições: A literatura mostrava-se carente de uma métrica mais completa para a mensuração da expertise do CEO, que pudesse captar o impacto destas na tomada de decisões. Assim, o estudo se preocupou com o avanço da ciência, e apresenta prospecção de estudos aplicáveis ao contexto nacional.