bluuebunny/crossref_metadata_2025_split huggingface dataset:
Triggered Ion-acoustic Waves in the Solar Wind
Authors: Mozer F. S. , Vasko I. Y. , Verniero J. L. 
Published: September 2021

Abstract
For more than 12 hr beginning on 2021 January 18, continuous narrowband electrostatic emissions were observed on the Parker Solar Probe near 20 solar radii. The observed <1000 Hz frequencies were well below the local ion-plasma frequency. Surprisingly, the emissions consisted of electrostatic wave packets with shock-like envelopes, appearing repetitively at a ∼1.5 Hz rate. This repetitiveness correlated and was in phase with low-frequency electromagnetic fluctuations. The emissions were associated with simultaneously observed ion beams and conditions favorable for ion-acoustic wave excitation, i.e., Te/Ti ∼ 5. Based on this information and on their velocity estimates of about 100 km s−1, these electrostatic emissions are interpreted as ion-acoustic waves. Their observation demonstrates a new regime of instability and evolution of oblique ion-acoustic waves that have not been reported previously in theory or experiment.
Gemini Speckle Imaging of Dual Quasar Candidates
Authors: Howell Steve B. , Shen Yue , Furlan E. , Gnilka Crystal L. , Stephens Andrew W. 
Published: September 2021

Abstract
We observed the candidate dual quasar J2122−0026 with speckle interferometric imaging at the Gemini-North Observatory. Results of our one-hour high resolution ‘Alopeke imaging observation agree with and confirm Hubble Space Telescope imaging of the pair separated at ∼0.″5. These observations show that sub-arcsec dual quasar candidates as faint as r ∼ 19 can be observed and detected using speckle imaging at Gemini.

“Do not go where the path may lead, go instead where there is no path and leave a trail.”
Ralph Waldo Emerson
Qualitative Development of Students’ Digital Skills by Integrating a Spreadsheet Software in First Year Introduction to Engineering and Seminar Course
Authors: Sadikin Aziatul Niza Binti , Mustaffa Azizul Azri Bin , Hasbullah Hasrinah Binti , Zakaria Zaki Yamani Bin , Abd Hamid Mohd Kamaruddin Bin , Che Man Siti Hajjar Binti , Hassim Mimi Haryani Binti , Ab Aziz Muhammad Arif Bin , Mohd Yusof Khairiyah Binti 
Published: September 2021

The Introduction to Engineering (ITE) and Industrial Seminar and
Profession (ISP) courses conducted at School of Chemical and Energy
Engineering, Universiti Teknologi Malaysia, are integrated courses
which implement the Cooperative Problem-based Learning (CPBL)
methods in the same semester. Based on this integrated courses, the
main aim of this paper is to investigate the qualitative impact of
spreadsheet hands-on seminar on the first year students' digital skill.
At the beginning of the semester, students are given sustainability-based project to work on, which requires them to collect and to report
the data in a series of presentations and written reports. In order to
present those data, they need to use analysis tools such as a
spreadsheet software. The students are introduced with some in-depth applications of the Microsoft Excel software through the seminar
sessions in the ISP course. With the knowledge that the students gain,
they are expected to implement it in the CPBL project. A qualitative
approach has been adopted to implement the study. Student’s
reflections were used as the data source to identify common attributes
that they have managed to gain from seminar sessions. This study has found that all students had primarily learned about digital skills. They perceived hand-on activity during the seminar as a good platform to acquire knowledge on basic calculation and developed learning skill on Excel. Moreover, students recognized the skills they are learning will be useful in other courses and future careers.
IL-6 Signaling Protects Zebrafish Larvae during Staphylococcus epidermidis Infection in a Bath Immersion Model
Authors: Dhanagovind P Thamarasseri , Kujur Prabeer K , Swain Rajeeb K , Banerjee Sanjita 
Published: September 2021

Abstract
The host immune responses to Staphylococcus epidermidis, a frequent cause of nosocomial infections, are not well understood. We have established a bath immersion model of this infection in zebrafish (Danio rerio) larvae. Macrophages play a primary role in the host immune response and are involved in clearance of infection in the larvae. S. epidermidis infection results in upregulation of tlr-2. There is marked inflammation characterized by heightened NF-κB signaling and elevation of several proinflammatory cytokines. There is rapid upregulation of il-1b and tnf-a transcripts, whereas an increase in il-6 levels is relatively more delayed. The IL-6 signaling pathway is further amplified by elevation of IL-6 signal transducer (il-6st) levels, which negatively correlates with miRNA dre-miR-142a-5p. Enhanced IL-6 signaling is protective to the host in this model as inhibition of the signaling pathway resulted in increased mortality upon S. epidermidis infection. Our study describes the host immune responses to S. epidermidis infection, establishes the importance of IL-6 signaling, and identifies a potential role of miR-142-5p–il-6st interaction in this infection model.
Theraband Applications for Improved Upper Extremity Wall-Slide Exercises
Authors: Uysal Özgün , Akoğlu Abdullah Sinan , Kara Dilara , Sezik Atilla Çağatay , Çalık Mahmut , Düzgün İrem 
Published: September 2021

Context
The wall-slide exercise is commonly used in clinic and research settings. Theraband positioning variations for hip exercises have been investigated and used, but Theraband positioning variations for upper extremity wall-slide exercises, although not commonly used, have not been examined.

Objective
To evaluate the effect of different Theraband positions (elbow and wrist) on the activation of the scapular and shoulder muscles in wall-slide exercises and compare these variations with each other and with regular wall-slide exercises for the upper limbs.

Design
Descriptive laboratory study.

Setting
University laboratory.

Patients or Other Participants
A total of 20 participants (age = 23.8 ± 3 years, height = 176.5 ± 8.14 cm, mass = 75.3 ± 12.03 kg, body mass index = 24.23 ± 4.03) with healthy shoulders.

Intervention(s)
Participants performed wall-slide exercises (regular and 2 variations: Theraband at the elbow and Theraband at the wrist) in randomized order.

Main Outcome Measure(s)
Surface electromyographic activity of the trapezius (upper trapezius [UT], middle trapezius [MT], and lower trapezius [LT]), infraspinatus, middle deltoid (MD), and serratus anterior (SA) muscles.

Results
Regular wall-slide exercises elicited low activity in the MD and moderate activity in the SA muscles (32% of maximal voluntary isometric contraction [MVIC] in the SA), whereas the Theraband-at-elbow and Theraband-at-wrist variations elicited low activity in the MT, LT, infraspinatus, and MD muscles and moderate activity in the SA muscle (46% and 34% of MVIC in the SA, respectively). The UT activation was absent to minimal (classified as 0% to 15% of MVIC) in all wall-slide exercise variations. The Theraband-at-wrist variation produced lower UT:MT, UT:LT, and UT:SA levels compared with the regular wall-slide exercise and Theraband-at-elbow variation.

Conclusions
In shoulder rehabilitation, clinicians desiring to activate the scapular stabilization muscles should consider using the Theraband-at-wrist variation. Those seeking more shoulder-abduction activation and less scapular stabilization should consider using the Theraband-at-elbow variation of the upper extremity wall-slide exercise.
Biosynthesis and characterization of a novel penicillium janthinellum Biourge L-asparaginase as a diverse biological activities agent
Authors: Abo-Stait Hanan M. , Easa Saadia M. , Abu Zahra Fatma A. , Hassan Amira A. , Ismail Abdel-Mohsen S. 
Published: September 2021

Background and objectives
L-asparaginase (L-ASP) is a therapeutic enzyme used in the treatment of certain human cancers, especially acute lymphoblastic leukemia, as a chemotherapeutic agent. Other than as an anticancer agent, it has many applications, including in the treatment of autoimmune disorders, infectious diseases, and antibacterial activity. Microorganisms such as bacteria, fungi, and actinomycetes are very effective producers and a better source of L-ASP because they can be easily cultivated, and it is also easy to extract and purify L-ASP. The aim of this study is to formulate the production medium and to pinpoint the proper growth conditions for the chosen microorganism producing highly active L-ASP enzyme. The general properties of the crude L-ASP enzyme preparation were also determined to define the proper conditions for enzyme action. Under the specified conditions, the opportunity of the crude L-ASP enzyme for antimicrobial and antioxidant activities was determined.

Materials and methods
Eight recommended microbial isolates were screened for biologically active L-ASP enzyme productivity. Optimization of the cultural conditions for extracellular L-ASP production and also the important properties of the crude L-ASP were duly pinpointed. Finally, biological activities of the crude enzyme were explored.

Results and conclusion
Among all the screened organisms, the fungal strain Penicillium janthinellum Biourge was the most potent producer of an influential L-ASP enzyme. The maximum L-ASP activity of 17.85±0.579 U/reaction was obtained from medium containing glucose 0.2% (w/v) and L-asparagine 1% (w/v) at 30°C and pH 6.2. The important properties of the crude P. janthinellum Biourge L-ASP were duly pinpointed as follows: optimum enzyme and substrate concentrations were 1 mg/ml and 1% (w/v), respectively, and optimum reaction pH and temperature were 10.7 and 45°C, respectively. Under the specified conditions, at varying concentrations, the enzyme preparation exhibited considerable 2, 2-diphenyl-1-picrylhydrazyl radical scavenging activity accompanied with nonantimicrobial activity, and this pointed out the necessity of partial purification of the crude fungal enzyme for further studies.
Constrained percolation in two dimensions
Authors: Holroyd Alexander E. , Li Zhongyang 
Published: September 2021

We prove absence of infinite clusters and contours in a class of critical constrained percolation models on the square lattice. The percolation configuration is assumed to satisfy certain hard local constraints, but only weak symmetry and ergodicity conditions are imposed on its law. The proofs use new combinatorial techniques exploiting planar duality.
Applications include absence of infinite clusters of diagonal edges for critical dimer models on the square-octagon lattice, as well as absence of infinite contours and infinite clusters for critical XOR Ising models on the square grid. We also prove that there exists at most one infinite contour for high-temperature XOR Ising models, and no infinite contour for low-temperature XOR Ising model.
Identification of a Novel Antigen for Serological Diagnosis of Scrub Typhus
Authors: Kim Wooyoung , Lee Sang-Yeop , Kim Seung Il , Sohng In-Kook , Park Sun Cheol , Jun Sangmi , Lee Chang-Seop , Kim Hye-Yeon , Park Edmond Changkyun 
Published: September 2021

ABSTRACT.
Scrub typhus is an acute infectious disease caused by the bacterium Orientia tsutsugamushi, which is widely distributed in northern, southern, and eastern Asia. Early diagnosis is essential because the average case fatality rate is usually >10% but can be as high as 45% if antimicrobial treatment is delayed. Although an O. tsutsugamushi 56-kDa type-specific antigen (TSA) is commonly used for serological diagnosis of scrub typhus, the 56-kDa TSA shows variations among O. tsutsugamushi strains, which may lead to poor diagnostic results. Therefore, the discovery of new antigenic proteins may improve diagnostic accuracy. In this study, we identified an O. tsutsugamushi 27 kDa antigen through an immunoinformatic approach and verified its diagnostic potential using patient samples. Compared with the O. tsutsugamushi 56-kDa antigen, the new 27-kDa antigen showed better diagnostic specificity with similar diagnostic sensitivity. Therefore, the O. tsutsugamushi 27-kDa antigen shows potential as a novel serological diagnostic antigen for scrub typhus, providing higher diagnostic accuracy for O. tsutsugamushi than the 56-kDa antigen.
Editorial: Education and the Quest for Educating in the Current and the Post-COVID-19 Era
Authors: Omodan Bunmi I , Diko Nolutho 
Published: September 2021

This special issue contains quality, well-researched, and well-argued articles towards inter/multi-disciplinary understanding of the current and future state, manner, and disposition of social, educational, environmental, humanitarian, and technological perspectives of COVID-19 pandemic. Readers, academics, practitioners and students are provided with robust knowledge on the state and status of the COVID-19 pandemic in the world from its advent in 2020, its present state and future projections. We thank all colleagues involved in the editorial and publishing process for their supports, assistance and exceptional guidance. We are bold to say that the quality involved in the publication process of RESSAT Journal is second to none. To all our authors, your quality products remain part of the historical contribution to knowledge on the COVID-19 pandemic.
Covid-19 and Technology: Higher Education’s Responses to Inclusive Practices for Pre-Service Teachers with Disabilities
Authors: De Klerk Edwin Darrell , Palmer June Monica , Alexander Greg 
Published: September 2021

Transforming the learning experiences of pre-service teachers with disabilities from stigma and social exclusion to experiencing a sense of belonging, is a desirable imperative for learning mediators in the South African Higher Education (SAHE) context. This paper presents a relational content analysis of the concepts, theories and policies, related to effecting transformation in the meaning schemes of pre-service teachers with disabilities and to provide HEIs with inclusive responses to addressing their learning support needs. The theory of perspective transformation, which highlights the process of effecting change in a frame of reference, is applied. The theory expands on three dimensions, including psychological (changes in understanding of the self), convictional (revision of belief systems) and behavioural (changes in lifestyle) with a sound foundation of inclusion aimed at drawing on practices for the prevention of exclusion of the pre-service teacher with disabilities in SAHE spaces. The paper further analyses discourses extracted from Section 47 of the Salamanca Statement, (1994) that build on inclusion artefacts in addressing perspective transformation. The findings in terms of belonging show that affirmations of the discourses, related to an interpersonal connection with others, have the scope to affect pre-service teachers with disabilities’ need for a positive regard as a prerequisite to foster the inclusion of individuals within any given relationship. This paper recommends that SAHE institutions embrace an ethos of inclusivity to achieve transformative equity for pre-service teachers with disabilities and offers an inclusive response framework to ensure that they are able to participate, learn and be welcomed as appreciated associates of HEIs.
Gramática da forma e personalização de habitação de interesse social: o caso do Quinta Monroy – Iquique, Chile
Authors: Matsunaga Cristina , Lima Elton Cristovão da Silva , Mendes Leticia Texeira 
Published: September 2021

O déficit habitacional é um problema atual nos países em desenvolvimento, especialmente depois da segunda metade do século XX e, para diminuí-lo, os programas habitacionais foram implementados em todo o mundo. No entanto, a eficiência das políticas habitacionais na maioria dos casos é apenas uma solução quantitativa. Este artigo tem como objetivo discutir uma estratégia de projeto habitacional chamada arquitetura evolutiva que promove uma abordagem “metade de uma casa dada pelo estado e outra metade para ser construída” através da ótica do sistema generativo. A metodologia da gramática da forma generativa será aplicada no estudo do projeto evolutivo mais conhecido: o Quinta Monroy, do grupo chileno Elemental. Posteriormente, uma gramática da forma generativa será justificada pela análise do corpus das expansões construídas do Quinta Monroy. A gramática original apresenta uma linguagem generativa para preencher o espaço evolutivo e as derivações resultam em arranjos espaciais alternativos. O objetivo principal é incentivar acadêmicos e profissionais a se aproximarem e discutirem sobre a customização de habitações sociais.
Proposta de modelo simplificado para otimização de layout de canteiro
Authors: Carvalho Yan Mota Veras de , Campos Vanessa Ribeiro 
Published: September 2021

O planejamento do canteiro afeta diretamente a produção, este deve levar em conta vários fatores que maximizam a produtividade e minimizam os custos de produção. O layout do canteiro ao longo da obra é um problema cotidiano no planejamento da produção. Este trabalho propõe um método simplificado para o posicionamento ótimo dos elementos de um canteiro, a fim de reduzir a distância de transporte, utilizando um modelo suportado por planilhas eletrônicas e algoritmos de otimização genética. O modelo proposto foi aplicado para resolver um problema de referência. O resultado foi um canteiro com 0,25% menos distância de transporte do que a referência que já havia sido otimizado. Portanto, sugere-se a implantação deste método para potencializar o planejamento do canteiro em seus estágios iniciais.
BIM na fase de operação & manutenção de edificações: oportunidades e desafios (parte I)
Authors: Silva Marcus Vinicius Rosário da , Martinez Marcos Filipe de Oliveira , Ludolf Nicholas Van-Erven , Meiriño Marcelo Jasmin 
Published: September 2021

A fase de operação e manutenção é a mais extensa do ciclo de vida de uma edificação e representa mais de 85% dos custos totais. O BIM/FM tem potencial aplicabilidade e benefícios, com espaço para exploração dos requisitos para futuras implementações bem-sucedidas. Nesse contexto, a pesquisa visa mapear as oportunidades e desafios do BIM/FM. A metodologia utilizada foi a Webibliomining, composta por 7 etapas: (a) escolha das bases; (b) busca preliminar de bases de dados; (c) refinamento da busca de bases de dados; (d) verificação das bases de dados quanto à exportação de informações de artigos; (e) seleção e exportação; (f) uso de software; e (g) leitura de títulos e resumos. Como resultado, foi obtido 225 artigos científicos completos, em língua inglesa (etapa f) e posteriormente 33 artigos científicos que efetivamente tratam de BIM/FM (etapa g). Por fim, a discussão foi apresentada com foco em 16 artigos (Parte I), sob os subtemas implementação de BIM/FM, comparação / indicadores de performance, e integração com outras tecnologias.
Estratégias de ensino e aprendizagem para surdos no Ensino Superior
Authors: Dos Reis Brasil Joelaini Martins , Dos Santos Cá Taise Gomes , De Oliveira Pavão Silvia Maria 
Published: September 2021

O Brasil vem acompanhando uma tendência mundial propondo encaminhamentos e medidas denominadas inclusivas. No que refere ao meio universitário há uma discussão que vem ganhando espaço partindo da necessidade de adequações e inovações para a garantia de uma educação que beneficie todos. O presente artigo constitui-se de uma pesquisa bibliográfica, com o objetivo de compreender o fomento metodológico de permanência no Ensino Superior, em especial das estratégias de ensino utilizadas. Constatou-se que mesmo com o acesso à universidade favorecido pela legislação, os fatores da permanência, focalizados nas estratégias de ensino e aprendizagem atuais, precisam ser identificados e melhor utilizados. As estratégias foram descritas como: ação conjunta do TILS, texto didático, momento de acolhimento, acompanhamento com identificação de necessidades específicas de aprendizagem, Atendimento Educacional Especializado (AEE), reconhecimento do potencial de aprendizagem e formação continuada. Em conclusão a inclusão de surdos no Ensino Superior, está na dependência do uso de estratégias de ensino e de aprendizagem combinadas e discutidas entre as partes (professor, aluno e Tradutor Intérprete de Libras).

Palavras-Chave: surdez, aprendizagem, Ensino Superior.
Infraestructura tecnológica implementada y uso de softwares educativos en el desempeño pedagógico docente del nivel secundario de la IE Politécnico Nacional del Callao, 2017
Authors: Carrasco Córdova Mirtha Elda , Díaz Manrique Jimmy , Encalada Díaz Iván Ángel 
Published: September 2021

El propósito de esta investigación es determinar la influencia de la infraestructura tecnológica implementada y el uso del software educativo en el desempeño pedagógico docente del nivel secundario de la institución educativa (IE) Politécnico Nacional del Callao, 2018.
La investigación obedece a un paradigma positivista, tipo básica, posee enfoque cuantitativo; con un diseño no experimental, transversal, de método descriptivo-explicativo; y se utilizó cuestionarios que se aplicó a una muestra comprendida por 80 docentes de la de la I.E. Politécnico Nacional del Callao; y se utilizó el coeficiente de correlación de Spearman.
Luego del análisis e interpretación de los resultados, se llegó a la siguiente conclusión que si influye la infraestructura tecnológica implementada y el uso de software educativo en el desempeño pedagógico docente del nivel secundario de la I.E. Politécnico Nacional del Callao, 2017; habiéndose obtenido un p-value igual a 0,000.
El aplicativo “whatsapp” en la gestión pedagógica del directivo de la Institución Educativa Fernando Carbajal Segura, Lima - 2020
Authors: Sulla Vilcarano Leydy Jashine , Santos Jiménez Ofelia 
Published: September 2021

En la presente investigación se investigó realizar como el aplicativo “WhatsApp” se relaciona con la gestión pedagógica del directivo de la institución educativa Fernando Carbajal Segura, Lima-2020, tuvo como finalidad. La investigación es de enfoque cuantitativo, tipo básica, diseño no experimental, ya que analiza cómo se comportan las variables en su contexto natural además explicar cómo se comporta una variable en función de otra y de nivel descriptivo correlacional. A través del muestreo no probabilístico se eligió una muestra de 06 docentes del nivel inicial, 18 de primaria, 42 de secundaria y 10 personal administrativo de la Institución educativa Fernando Carbajal Segura, a quienes se les aplicó mediante la técnica de la encuesta a través de un cuestionario, utilizando la escala de Likert, con las alternativas de nunca, casi nunca, a veces, casi siempre, siempre. Para el contraste de hipótesis se usó la correlación de Pearson entre las variables, “WhatsApp” y gestión pedagógica del directivo los resultados indican que alcanza un nivel de 0.774 que corresponde a un nivel de correlación positiva alta.
Para la variable WhatsApp y la dimensión planificación curricular existe una relación y la correlación significativa y alcanza un nivel de 0.671 que corresponde a un nivel de correlación positiva moderada. Para la dimensión evaluación de los aprendizajes se obtuvo una significancia de 0.649 con un nivel de correlación positiva moderada y para la dimensión monitoreo se obtuvo la significancia de 0.514 con un nivel de correlación positiva moderada.