bluuebunny/crossref_metadata_2025 huggingface dataset:
Cryopreservation of aromatic ginger Kaempferia galanga L. by encapsulation-dehydration
Authors: PREETHA Thankappan S. , HEMANTHAKUMAR Achuthan S. , KRISHNAN Peringatulli N.
Published: December 2021

Kaempferia galanga L. is an endangered multi-purpose medicinal plant in Family Zingiberaceae, the rhizomes of which are used for several ayurvedic formulations. Encapsulation-dehydration (ED) method was optimized for cryopreservation of shoot tips of K. galanga. Shoot tips (STs) bearing the apical meristem dissected from the established in vitro shoot cultures were preconditioned in MS+0.4 M sucrose prior to encapsulation in calcium alginate and the beads subsequently transferred to MS liquid+0.3 M sucrose for 3 days afterward dehydration inside the laminar airflow for 4 hours upon rapid freezing in LN and rapid thawing produced maximum 62.2% survival and 46.7% regeneration rates. Shoot regeneration was observed from the apical meristems exclusive of intermediary callus phase. The plantlets regenerated from cryopreserved STs transferred to the field were phenotypically analogous with the mother plant.
Seed germination response of Indian wild pear (Pyrus pashia) to gibberellic acid treatment and cold storage
Authors: THAPLIYAL Manisha , KALIYATHAN Namitha N. , RATHORE Kanupriya
Published: December 2021

Knowledge of seed germination behaviour of different seed sources of tree species is useful in selecting the most responsive and adaptive ones for propagation and germplasm conservation. The wild Himalayan pear (Pyrus pashia Buch-Ham ex D. Don) produces highly nutritious edible fruits that are consumed by local communities. The populations of the species are threatened due to exploitation and lack of adequate conservation programmes. The study was conducted to examine the germination response of P. pashia seeds from two sources (S1-Champawat and S2-Pithoragarh) in Uttarakhand state of India, to different GA3 treatment and also to assess the viability and longevity of the seeds in cold storage (5 °C) for three years. In both sources germination percent (GP) increased significantly under GA3 treatment and speed of germination was also enhanced (reduction in mean germination time). In Source, 1 GP increased under all GA3 application, highest being 94% under GA3 500 ppm treatment. In Source 2, GP of seeds doubled under 100 ppm GA3 treatment while its higher concentrations did not improve the germination. However, the differences observed in germination between the seed sources could be due to differences in the dormancy levels and/or sensitivity to dormancy breaking elements across their geographical range. Thus, exogenous application of GA3 is suggested for enhancing the germination in seeds of P. pashia. Seeds responded to cold storage by increased germination with duration, i.e. highest after three years in storage, indicating that the seeds got the required chilling treatment for overcoming dormancy.
Cloud Computing Cloud Computing in Remote Sensing : High Performance Remote Sensing Data Processing in a Big data Environment
Authors: Sabri Yassine , Siham Aouad
Published: December 2021

Multi-area and multi-faceted remote sensing (SAR) datasets are widely used due to the increasing demand for accurate and up-to-date information on resources and the environment for regional and global monitoring. In general, the processing of RS data involves a complex multi-step processing sequence that includes several independent processing steps depending on the type of RS application. The processing of RS data for regional disaster and environmental monitoring is recognized as computationally and data demanding.Recently, by combining cloud computing and HPC technology, we propose a method to efficiently solve these problems by searching for a large-scale RS data processing system suitable for various applications. Real-time on-demand service. The ubiquitous, elastic, and high-level transparency of the cloud computing model makes it possible to run massive RS data management and data processing monitoring dynamic environments in any cloud. via the web interface. Hilbert-based data indexing methods are used to optimally query and access RS images, RS data products, and intermediate data. The core of the cloud service provides a parallel file system of large RS data and an interface for accessing RS data from time to time to improve localization of the data. It collects data and optimizes I/O performance. Our experimental analysis demonstrated the effectiveness of our method platform.
Effect of Sample Sizes in Fingerprinting Database for Wi-Fi System
Authors: Ahmad Sa'ahiry Ahmad Hakimi Bin , Ismail Abdul Halim , Kamaruddin Latifah Munirah , Hashim Mohd Sani Mohamad , Azmi Muhamad Safwan Muhamad , Satar Muhammad Juhairi Aziz , Toyoura Masahiro
Published: December 2021

Indoor positioning system has been an essential work to substitute the Global Positioning System (GPS). GPS utilizing Global Navigation Satellite Systems (GNSS) cannot provide an accurate positioning in the indoor due to the multipath effect and shadow fading. Fingerprinting method with Wi-Fi technology is a promising system to solve this issue. However, there are several problems with the fingerprinting method. The fingerprinting database collected has different sample sizes where the previous researcher does not indicate any standard for the sample size to be used. In this paper, the effect of the sample sizes in fingerprinting database for Wi-Fi technology has been discussed deeply. The statistical analyzation for different sample sizes has been analyzed. Furthermore, two methods which are K- Nearest Neighbor (KNN) and Deep Neural Network (DNN) are being used to examine the effect of the sample sizes in term of accuracy and distance error. The discussion in this paper will contribute to the better sample size selection depending on the method taken by the user. The result shows that sample sizes are an important metrics in developing the indoor positioning system as it effects the result of the location estimation.
Prevalence of dental trauma in Brazilian children and adolescents: a systematic review and meta-analysis
Authors: Vieira Walbert de Andrade , Pecorari Vanessa Gallego Arias , Figueiredo-de-Almeida Rodolfo , Carvas Junior Nelson , Vargas-Neto Júlio , Santos Eduardo César Almada , Gomes Brenda Paula Figueiredo de Almeida , Almeida José Flávio Affonso de , de-Jesus-Soares Adriana
Published: December 2021

Abstract: This study aimed to investigate the prevalence of dental trauma in Brazilian children and adolescents. A systematic review was conducted considering eight databases: MEDLINE (via PubMed), LILACS, BBO, Scopus, Embase, Web of Science, Open Access Theses and Dissertations, and OpenThesis. Only prevalence studies that used a probabilistic sampling method were included, without restriction on year or language of publication. The JBI critical appraisal tools for prevalence studies were used to assess the individual risk of bias. The individual studies were combined in the meta-analysis using the random-effects model. The heterogeneity between the studies was analyzed by Cochran’s Q and the I-square statistics. A meta-regression analysis was performed to evaluate the sources of heterogeneity. The GRADE approach assessed the certainty of evidence across included studies. The search resulted in 2,069 records, of which 36 were included in the study. The eligible studies were published from 2000 to 2021, with a total sample of 40,194 children and adolescents. Most studies (75%) had a low risk of bias. In permanent teeth, the prevalence of dental trauma was 21% (95%CI: 16.0; 26.0) and in deciduous teeth; 35% (95%CI: 26.0; 44.0). The prevalence of dental trauma among boys was higher than among girls for both dentitions. Based on a low certainty, the prevalence of traumatic dental injuries in Brazilian children and adolescents is higher than that found worldwide both in deciduous and permanent teeth. Also, the prevalence of dental trauma among boys is higher than among girls.
Predictors of happiness and satisfaction with life in individuals from the Brazilian general population who use social networks: a cross-sectional study
Authors: Camargos Mayara Goulart de , Paiva Bianca Sakamoto Ribeiro , Oliveira Marco Antonio de , Almeida Carla Simone Leite de , Giacomoni Claudia Hofheinz , Paiva Carlos Eduardo
Published: December 2021

Abstract: This study aimed to identify possible conditions associated with the perception of happiness and satisfaction with life in a sample of the Brazilian population who use social networks. This was a cross-sectional study with participants recruited online in five regions of Brazil via Facebook and WhatsApp. Data were collected from October 2015 to October 2016. The instruments used were the Pemberton Happiness Index, the Satisfaction with Life Scale, and a questionnaire regarding sociodemographic and clinical characteristics and issues potentially associated with the feeling of happiness. In total, 2,151 participants were included. A total of five variables exerted the greatest influence on higher levels of happiness and satisfaction with life in the multiple linear regression model, in the multiple logistic regression analysis, and in the decision tree model. Being satisfied with financial circumstances, having a positive self-evaluation of health, having frequent family gatherings, engaging in physical activity ≥ 3 times a week, and having no previous psychological/psychiatric diagnosis are variables that “seem” to positively influence Brazilians’ perception of happiness and satisfaction with life. We identified some predictors of happiness and satisfaction with life, which were mainly related to the social activities and personal satisfaction of the participating individuals. Encouraging people to seek strategies for increasing levels of happiness and life satisfaction based on modifiable variables, such as those found, can be helpful in this context.
Implantação da Política Nacional de Saúde Bucal e sua influência sobre a morbidade bucal em capitais brasileiras na primeira década do século XXI
Authors: Souza Georgia Costa de Araújo , Kusma Solena Ziemer , Moysés Samuel Jorge , Roncalli Angelo Giuseppe
Published: December 2021

Objetivou-se analisar estratégias de implantação da Política Nacional de Saúde Bucal (PNSB) e sua possível influência sobre a morbidade bucal em capitais do Brasil na primeira década do século XXI. Trata-se de um estudo de avaliação de políticas. Os dados de morbidade bucal foram obtidos nos bancos das Pesquisas Nacionais de Saúde Bucal em 2003 e 2010 (SBBrasil 2003 e SBBrasil 2010), sendo calculada a modificação percentual anual de variáveis relativas às condições de saúde bucal como variáveis dependentes para as capitais brasileiras. A PNSB foi investigada relativamente às suas bases conceituais: modelo de atenção em saúde bucal, organização da oferta de serviços de saúde bucal, implementação de estratégias de promoção da saúde bucal e existência de fluoretação nas águas de abastecimento público. Para isso, foram utilizados dados dos sistemas de informação em saúde nacionais e aplicação de questionário face a face com coordenadores de saúde bucal de 13 capitais selecionadas. As análises foram controladas e ajustadas pelas condições socioeconômicas da população investigada. Observou-se uma associação entre as características de promoção de saúde bucal, da oferta de serviços e do modelo de atenção, o que representa que a dinâmica dos serviços públicos é dependente das prioridades de gestão e da condução da política. Conclui-se que a PNSB é implementada de forma diferente nas capitais brasileiras e o modo de condução de suas diretrizes, em cada capital, favorece ou não o desenvolvimento de melhores práticas e estratégias na atenção à saúde bucal. Contudo, a influência da PNSB sobre a modificação nos indicadores de saúde bucal entre 2003 e 2010 ainda é pouco clara.
Rare case of concomitant juxtarenal aortic aneurysm and type 1 Inferior Vena Cava duplication: -intraoperative challenges to avoid catastrophe
Authors: Tandup Cherring , Behera Arunanshu , Kurdia Kailash Chand , Singh Charan
Published: December 2021

Abstract Duplication of the inferior vena cava is a rare congenital anomaly, with an incidence of 0.2-3%. Despite being asymptomatic, anomalies of IVC are important in aortoiliac and retroperitoneal surgeries. Preoperative CT imaging is essential to identify any IVC anomaly and to prevent unexpected hemorrhage during surgery. Here, we report a case of a juxtarenal abdominal aortic aneurysm in which we encountered a type I IVC duplication anomaly intraoperatively while performing transperitoneal aneurysmorrhaphy and took precautions to avoid any iatrogenic injuries to either of the two trunks or the pre-aortic trunk of the anomalous duplicate IVC.
Interação colaborativa na graduação em língua francesa: uma experiência de educação online em tempos pandêmicos
Authors: Aranda Maria del Carmen de la Torre
Published: December 2021

RESUMO Este artigo tem por objetivo apresentar e discutir usos e práticas de linguagem que promoveram a participação e a interação colaborativa entre estudantes de graduação em plataforma usada para a educação online. As práticas de aprendizagem se realizaram no contexto de uma disciplina de morfossintaxe do francês para a graduação em Letras Francês da Universidade de Brasília, durante o período de ensino remoto decorrente do cenário da pandemia em 2020. Apoiadas nas noções de mediação pelo texto e de aprendizagem/interação colaborativa (WARSCHAUER, 1997; ZOUROU, 2007; BRAGA, 2013), as práticas tiveram por objetivo proporcionar uma aprendizagem da língua e sobre a língua francesa tomando como recurso textual de reflexão o próprio material linguístico-discursivo construído pelos estudantes em suas interações no ambiente online. Narrativas dos estudantes indicam que a perspectiva da educação online adotada favorece o enfoque pedagógico na negociação de sentidos colaborativamente, ao mesmo tempo que abre espaço a um trabalho crítico sobre a linguagem e os processos de elaboração de sentidos em ambientes online.
Homo digitalis e as práticas de linguagem: do negacionismo ao “novo normal” na sociedade pandêmica
Authors: Hissa Débora
Published: December 2021

RESUMO Neste texto, discuto a formação discursiva negacionista em curso no cenário político-econômico da pandemia de Covid-19. O negacionismo se materializou em discursos concretos, criou instâncias de verdade e campos de realidade (Foucault, 1987) que atuam em redes digitais, criando subjetividades. Para descrever a estratégia discursiva do negacionismo, tomo como base a ideia de desmediatização e spaminização (Han, 2017a e 2018); de câmara de eco (Mounk, 2019), de homo digitalis e “novo normal”, relacionando-as com a sociedade do desempenho (Han, 2017b). Reflito como a desmediatização, a liberdade de expressão e a falta de transparência, orquestradas nas câmaras de eco digitais, formam uma biopolítica (Foucault, 2008). Discuto também como os discursos negacionistas foram potencializados pelas Novas Tecnologias de Informação e Comunicação (NTICs) e subverteram a ideia de liberdade (entendida como associal, autogerida, autocentrada, individualizada). Por fim, trago o conceito de remediatização como uma exigência social no combate à infodemia e sua relação com a exotopia (Bakhtin, 2011). Este jogo enunciativo do “novo normal” revela outra forma de governamentalidade (Foucault, 1987), que culminam na precarização das condições de trabalho, travestida de flexibilização laboral.
Spontaneous poisoning by Dodonaea viscosa (Sapindaceae) in cattle in Southern Brazil
Authors: Zamboni Rosimeri , Alberti Taina S. , Venancio Fabiano R. , Quevedo Lucas S. , Bonel Josiane , Raffi Margarida B. , Schild Ana L. , Sallis Eliza S.V.
Published: December 2021

ABSTRACT: In this study, an outbreak of spontaneous poisoning by Dodonaea viscosa (D. viscosa) in a herd of dairy cattle in the municipality of Capão do Leão, Rio Grande do Sul, was investigated. Three deaths occurred in a batch of 16 Jersey cattle, aged between three and four years, kept in a native field. The clinical signs observed were apathy, decreased production, and anorexia, with death occurring within approximately 48 h after the onset of signs. The three cattle were necropsied, and tissue samples were sent for histopathological examination. Necropsy findings included serosanguineous fluid in the abdominal cavity, intestines with congested serosa, and marked mesenteric edema. The mucosa of the abomasum of two of the animals was hemorrhagic with bloody content, and among the ruminal content of a bovine, leaves with morphological characteristics compatible with D. viscosa were observed. The livers of the three animals were enlarged, with accentuation of the lobular pattern. Histologically, centrilobular coagulation necrosis with congestion and hemorrhage was observed in the liver. Vacuolization and degeneration of hepatocytes were observed in the mid-zonal and periportal regions. The diagnosis of poisoning by D. viscosa leaves was based on epidemiological data, necropsy findings, and histopathological alterations. The presence of the plant in the rumen and in the grazing site of the affected cattle was essential for the diagnosis.
EMOCIONALIDADE POLÍTICA NA AÇÃO COLETIVA JUVENIL
Authors: Roldán Macarena
Published: December 2021

Resumo Este artigo é o resultado de um processo investigativo que, há seis anos, estuda a Marcha de la Gorra, em Córdoba, Argentina. Esta manifestação tem um alto componente juvenil e visa a instaurar uma denúncia contra o abuso policial e a políticas de segurança pública. O propósito do estudo é explorar a produção e a expressão de emocionalidade política que ocorre na ação coletiva. Para isso, foram identificados climas e nuanças emocionais que a experiência de participar da manifestação provocou, considerando as construções discursivas que os jovens elaboram a partir das experiências deles. Foi baseado em uma abordagem qualitativa que incluiu: registro etnográfico, conversações em marcha e entrevistas em profundidade. O diálogo entre diferentes perspectivas teóricas e o trabalho de campo permitiu refletir sobre os laços entre emocionalidade política e ação coletiva. Por fim, o repertório expressivo que caracteriza a Marcha evidenciou a centralidade da corporeidade nos processos de resistência.
Identity of Gymnophthalmus (Squamata: Gymnophthalmidae) from northeastern Amazonia with evidence for G. underwoodi as invasive in Belém
Authors: MACIEL Adriano O. , ARAÚJO Ivanei S. , LIMA-FILHO Geraldo R. , CASTRO Felipe M. R. , NASCIMENTO Lywouty R. S. , SANTOS Manuela V. dos , PRUDENTE Ana L. C. , STURARO Marcelo J.
Published: December 2021

ABSTRACT We report the occurrence of the lizard Gymnophthalmus underwoodi in the municipality of Belém, state of Pará, Brazil. This is the first record of that species south of the Amazonas River, probably because of an accidental introduction by ships that dock in Belém, the same pathway suggested for the recent introduction of another species of exotic lizard recently recorded in the city. We also determined the identity of some specimens of Gymnophthalmus from the states of Amapá and Pará through external morphology and molecular data, confirming that, until now, G. vanzoi is the only Gymnophthalmus occurring in the savanna enclaves of those states. Finally, we provide a new distribution map for the species of Gymnophthalmus, including the new occurrence record for G. underwoodi for the state of Pará, where it can be considered as an invasive species.
EVOLUÇÃO RECENTE DA PRESENÇA E DO PERFIL DE MINORIAS NA UNIVERSIDADE FEDERAL DE MINAS GERAIS
Authors: Golgher André Braz
Published: December 2021

Resumo Foram implementadas políticas de ação afirmativa, incluindo políticas de bônus e cotas na Universidade Federal de Minas Gerais (UFMG), com o intuito de diminuir desigualdades no acesso ao ensino superior. Além disso, o Programa de Apoio a Planos de Reestruturação e Expansão das Universidades (Reuni) e o uso do Exame Nacional do Ensino Médio/Sistema de Seleção Unificado (Enem/SiSU) no processo seletivo podem ter afetado a proporção de estudantes pertencentes às minorias frequentando instituições públicas de ensino superior no Brasil. O principal objetivo deste trabalho é verificar a evolução da diversidade do corpo discente da UFMG no período de 2006 a 2015, abordando os efeitos dessas mudanças. As políticas do Reuni, bônus e cotas parecem ser eficazes na redução das desigualdades de diferentes tipos na UFMG, enquanto o Enem/SiSU parece ter promovido um aumento na desigualdade. Além disso, foram avaliados os determinantes da propensão de pertencer a domicílios de baixa renda, de ser negro ou de ter frequentado escolas de nível médio particulares ou estaduais.
“Continua a febre dos monumentos”: a estatuomania na imprensa do Rio de Janeiro (décadas de 1880 a 1930)
Authors: SCARELLI RAFAEL DIAS
Published: December 2021

RESUMO Este artigo aborda como a imprensa carioca e os intelectuais da época perceberam e analisaram a expansão da escultura pública na cidade do Rio de Janeiro entre as décadas de 1880 e 1930. Em especial, investiga como esses atores se apropriaram da ideia de “estatuomania”, a partir da observação atenta do que se passava na França, para interpretar a realidade urbana carioca. Defendemos que não se tratou da simples “importação” de uma ideia estranha ao meio local, mas, sim, de um processo de intensa reelaboração e adaptação do conceito, mobilizando-o no bojo das disputas político-ideológicas do momento. Para tal análise, apoiamo-nos, como fontes documentais, nos artigos publicados nos jornais e revistas ilustradas da então capital brasileira, além de periódicos franceses.
GASTROESOPHAGEAL REFLUX DISEASE IN INFANTS WHO PRESENTED BRIEF RESOLVED UNEXPLAINED EVENT (BRUE)
Authors: BELLOMO-BRANDÃO Maria Angela , STRANGUETTI Fernanda Maso , LOPES Iara Ferreira , PEIXOTO Andressa Oliveira , MARSON Fernando Augusto Lima , LOMAZI Elizete Aparecida
Published: December 2021

ABSTRACT BACKGROUND: The term brief resolved unexplained events (BRUE) is a description of the acute event occurring in infants less than 1-year-old that includes at least one of the following characteristics: cyanosis or pallor; absent, decreased, or irregular breathing; marked change in tone or altered level of responsiveness. An investigative proceeding is required to identify the triggering phenomenon in those who are at high risk of complications. Prolonged esophageal pHmetry has been used as a tool in searching for gastroesophageal reflux disease (GERD) as one of the underlying etiologies. OBJECTIVE: The study aims to verify the frequency of GERD in infants up to 1-year-old, when pHmetry has been performed for investigating high-risk BRUE (HR-BRUE) and to analyze if clinical characteristics or any particular symptom related by caregivers during BRUE could be correlated to GERD. METHODS: It was performed a cross-sectional study. The data was collected retrospectively of patients less than 1-year-old, who had performed pHmetry in a tertiary hospital for investigating HR-BRUE between October 2008 and January 2018. For the analysis of medical records, a data collection protocol included: gender, age at the first HR-BRUE episode, age at the time of the pHmetry, gestational age, type of delivery (normal or caesarean) and birth weight and symptoms associated to HR-BRUE related by caregivers. Relation between variables were assessed using Fisher’s exact test and Mann-Whitney test. The significance level was set at 0.05. RESULTS: A total of 54 infants were included (preterm 25, term 29), 62.9% males, median age at the HR-BRUE was 36 days, 53.7% HR-BRUE episodes had occurred during or right after feeding. According to pHmetry results: nine pHmetry results were considered inconclusive, physiological reflux (n=30) and GERD (n=15). The frequency of GERD diagnosed by pHmetry was 33%. GERD was not statistically related to gender (P-value=0.757), age at first HR-BRUE episode (P-value=0.960), age at the time of the pHmetry (P-value=0.720), prematurity (P-value=0.120) or type of delivery (P-value=0.738). GERD was statistically related to low birth weight (P-value=0.023). There was no association between symptoms reported by caregivers during HR-BRUE and GERD. CONCLUSION: GERD diagnosed by the pHmetry was found in one third of infants that experiencing a HR-BRUE, showing the importance of properly investigation. In half of infants BRUE occurred during or right after feeding. Besides low birth weight, it was not possible to select other data from the clinical history that suggest that these patients would be more likely to have GERD.
NON-ADHERENCE TO HEPATITIS C TREATMENT: A BRAZILIAN REPORT
Authors: IVANTES Claudia Alexandra Pontes , SILVA Bernardo Carvalho da , ACOSTA Gabriel Gonçalves , TAWIL Fabiane Beatriz Neves El , NISIHARA Renato
Published: December 2021

ABSTRACT BACKGROUND: In Brazil, since 2015, the treatment of hepatitis C is provided by SUS (Public Health System) with direct-acting antiviral (DAA). OBJECTIVE: To describe the rate of non-adherence patients to hepatitis C treatment by DAA, investigating the epidemiological data in a large database from Curitiba, Brazil. METHODS: Retrospective study with patients treated between January 2015 and June 2019. Patients were considered adherent when received all medication doses during their treatment. The following data were evaluated: gender, age, type of treatment, period of treatment, presence of diabetes or HIV, previous therapy, originated from SUS or private medicine, fibrosis grade and HCV genotype. RESULTS: 1248 patients (56.8% males) were studied and 102/1248 (8.2%) were non-adherent to treatment. Age or gender not influenced significantly; 10.2% patients from SUS and 3.7% individuals from private medicine were non-adherent (P<0.0001; OR=2.9; CI95%=1.6-9.1); 13.1% patients were co-infected with HIV and among them, 15.9% abandoned treatment. Individuals without co-infection presented 7.0% of non-adherence (P<0.0001; OR=2.5; CI=1.5-4.1). All the other variables showed no differences in the adhesion rate. CONCLUSION: Our study showed that 8.2% of patients were non-adherent to HCV treatment, and that patients from the Public Health System and co-infected with HIV were significantly less adherent.
Educación para la transición emancipadora: justicia social y ciudadanía global
Authors: Martín-Bermúdez Nieves , Moreno-Fernández Olga
Published: December 2021

Resumen Este artículo reflexiona sobre la base estructural del derecho a la Educación y los valores que sustentan el proceso educativo. Se plantea la importancia de desarrollar marcos analíticos que apelen a visibilizar la diversidad de realidades socioeducativas y de conocimientos sobre el papel de la Educación. De esta manera, la perspectiva de la Educación para la Transición Emancipadora se presenta como una alternativa pedagógica y un modelo de formación integral. Una propuesta para una ciudadanía autónoma y responsable con dignidad humana, desde una concepción atenta y crítica de los temas sociales y ambientales relevantes de nuestro mundo. Es importante en este marco considerar que nos colocamos bajo el enfoque crítico de los Derechos Humanos y, por ende, de la Justicia Social, dejando de lado los clásicos que se han producido debido al proceso de globalización y retomando principios que promueven una globalización emancipada, y empoderamiento de la ciudadanía.
La política de internacionalización de la Educación Superior. Efectos, brechas y asimetrías persistentes
Authors: Vázquez Jaime Moreles , García Sara Aliria Jiménez , Canan Silvia Regina
Published: December 2021

Resumen Este artículo analiza la internacionalización de la política de Educación Superior y algunos de sus efectos. Utilizamos el análisis documental para revisar la forma en que las universidades lo han asumido, analizando las políticas que promueven la internacionalización, los informes institucionales que muestran sus principales resultados y los aspectos que se miden en los Ránquines Universitarios sobre el tema. Uno de los hallazgos más significativos de esta investigación se refiere a la brecha que existe entre la concepción de la política que se adopta en el discurso institucional y la forma en que trasciende y se concreta en los indicadores que miden su efectividad. Además, la revisión de los resultados de la internacionalización muestra la persistencia de asimetrías entre las instituciones de Educación Superior en las regiones más y menos industrializadas. Este artículo se deriva de las actividades del proyecto del Grupo Internacional de Estudios e Investigaciones de Educación Superior.
The relationship between cognitive development, behavior indicators, and Personal, Social, and Emotional Development in Pre-school
Authors: Santos Karina Porciuncula de Almeida Rodrigues , Bartholo Tiago Lisboa , Koslinski Mariane Campelo
Published: December 2021

Abstract The paper investigates the potential of a questionnaire answered by teachers about the behavior and socio-emotional skills of children enrolled in preschool – start of compulsory schooling in Brazil. Based on this instrument, it describes the development of indicators of inattention, hyperactivity-impulsivity and personal, social and emotional development. It uses multivariate linear regression models to identify factors associated with the cognitive development of children enrolled in preschool. The results suggest that more inattentive children tend to have lower cognitive attainment, especially in language. The estimated coefficients in the multivariate model suggest that the Personal, Social and Emotional Development has a moderate to high effect size for language and mathematics. Implications of the results for educational policies are presented.
Percepções de estudantes do ensino superior sobre o feedback docente e desempenho acadêmico
Authors: Silva Juana de Carvalho Ramos , Carvalho Carolina Fernandes
Published: December 2021

RESUMO Na literatura, o feedback docente surge como uma ferramenta necessária à aprendizagem. No entanto, a percepção é a de que o feedback que o estudante constrói interfere em sua eficácia. Esta investigação foca-se na visão de estudantes do ensino superior sobre o feedback docente e no consequente impacto sobre o desempenho acadêmico. Para tal, aplicou-se um questionário on-line, baseado em duas escalas de percepção de feedback docente, a 773 estudantes de licenciatura de Institutos Federais. Os resultados revelaram qualidades psicométricas aceitáveis do instrumento. Verificou-se, ainda, que, quanto maior a utilização de práticas eficazes de feedback docente, maior a valorização deste por parte dos estudantes e melhor o desempenho acadêmico. Ao encontro da literatura, constatou-se que os discentes tendem a reconhecer como útil o feedback que se apresenta na forma de uma crítica construtiva, específica e que se afasta das simples classificações.
Study of rheological properties of carbon nanotube-reinforced ultrafine cement grouting materials
Authors: Liu Yunxiao , Zhang Jiahang , Chi Yinyin
Published: December 2021

In this study, three different diameters of multi-walled carbon nanotubes (MWCNTs) dispersed by polyvinyl pyrrolidone (PVP) were used to reinforce superfine cement grouting materials. The effect of MWCNTs and PVP on the rheological properties of grouting material were accordingly studied. It was found that the yield stress (τ0) and plastic viscosity (η) decreased slightly when PVP content was low and increased when PVP content increased. The effect of MWCNT diameter on τ0was not found to be clear but was more significant on η. The smaller the MWCNT diameter, the quicker η increased. It was also found that the thixotropic ring area increased as the MWCNT content increased. The addition of PVP and MWCNTs caused an increase in the number of entanglement points in different scales, which was the main reason for the viscosity and thixotropy increase. Therefore, the rheological properties of superfine cement grouting material should be adjusted when MWCNTs are added as a reinforcing component. Owing to the wrapping of PVP on cement particles, which isolates the contacting part between water and cement particles, it slows down the hydration rate of cement and thus slows down the fluidity loss of the slurry.
Cirugía abdominal de emergencia
Authors: Cárdenas Reyes Alex Fernando , Calderón Reza Juan Carlos , Macancela Correa Jessica , Burgos Requena Danny , Aristega Angulo Loren , Rojas Realpe Ramiro
Published: December 2021

Una vez terminada esta obra literaria médica podemos decir que para un éxito en el ámbito quirúrgico es totalmente fundamental saber la anatomía por regiones de manera rigurosa como se manifiesta en el capítulo 1. Tuvimos la entereza de incluir un capitulo en el que es de mucho interés a nivel mundial porque es una pandemia asintomática y silenciosa ya que la tasa de infartos a nivel mundial es muy alta y es por eso que se manifiesta en el capítulo 2. Para terminar, es muy grato que le den una leída a los capítulos siguientes y se deleiten con el ámbito quirúrgico y saber que deben estar cubiertos legalmente en cada proceder.
Language use in socialist context by the example of description of the 1st May – Labour Day
Authors: Dănilă Adriana
Published: December 2021

The present paper aims to analyze journalistic texts, that were published in the German GDR-newspaper Neues Deutschland on Labour Day 1st May 1949. The texts serve the political authority as an instrument of legitimation of its own ideology and as an instrument to control and influence the crowd of people. The enhancement of socialist worldview and the denigration of others thinking are processed and conveyed by means of language; the media content and the language use are ordered and controlled by the political authority.
Physiotherapy in Long Term Physical and Mental Health of People Recovered from COVID 19: A Systematic Review Protocol
Authors:   BPT, MPT- Orthopedics, Pursuing Ph.D.-Physiotherapy, Gyanpuri Vyom ,   Research Scholar in Department of Anatomy, Institute of Medical Sciences, Banaras Hindu University, Varanasi-UP, India., C. Mohanty  ,   Professor & Head, Department of Anatomy, Institute of Medical Sciences, Banaras Hindu University, Varanasi-UP, India, Dhiman Neetu Rani ,   BPT, MPT-Neurology, Ph.D.-Physiotherapy; Research Associate in Department of Neurology, Institute of Medical Sciences, Banaras Hindu University, Varanasi-UP, India.
Published: December 2021

The objective of the study to design a protocol on the effectiveness of physiotherapy on long term physical and mental health of recovered patients from coronavirus disease 2019. Methods: The following electronic databases will be searched from inception to December 2021: PubMed, EMBASE, Web of Science, China National Knowledge Infrastructure, Chinese Biomedical Literature Databases, and other databases. We will include all published documents regarding this topic. Two separate individuals will analyse studies and select accordingly after removal of duplicate studies. Then, final screening, assessment of quality of the articles and data analysis will be done. Meta-analyses, subgroup analysis, and descriptive analysis will be performed based on the included data conditions. Results: Methodological heterogeneity analysis of current evidence will be provided from Physical health outcomes like Barthel Index or Functional Independence measure scale and questionnaires describing health status like Physical Health Questionnaire and Mental health outcomes like SRQ-20, Hamilton Depression scale or Hamilton Anxiety scale. Conclusion: This study will provide the evidence regarding the importance of physiotherapy in future physical and mental health of recovered COVID-19 patients, when performed during treatment of disease in acute hospital management. PROSPERO registration number: CRD42020190863 KEY WORDS: Coronavirus disease 2019, Protocol, Rehabilitation, Review.
Döküm Mg+%15Al12Si alaşımının mikroyapı ve sertlik incelemesi
Authors: ÇİÇEK Bünyamin , SUN Yavuz
Published: December 2021

Bu çalışmada Mg metaline Al ve Si elementlerinin ilavesi ile bir döküm yapılmıştır. Döküm sırasında atmosfer kontrollü bir döküm fırını kullanılmıştır. Alaşımda saf Mg metaline ilave olarak ağırlıkça %15 Al12Si ingot alaşımı kullanılmıştır. Elde edilen alaşım homojenleştirme sonrası numune haline getirilmiştir. Mg-Al-Si üçlü alaşımı şeklinde hazırlanan alaşım döküm sonrası klasik metalografik yöntemlerle hazırlanmış ve SEM ile mikroyapı incelemesi yapılmıştır. Ek olarak alaşıma elementel analiz uygulanmıştır. Temel mekanik değerler için alaşım Vickers tipinde sertlik testi ölçümüne alınmıştır. Alaşım mikro yapısında oluşan intermetalik fazların dağılımı ve yapıları incelenmiştir. Sonuç olarak standart (AS serisi) bir Mg alaşımı elde edilmiş ve temel özellikleri rapor edilmiştir.
Resource of Involvement as a Psychological Characteristic of the Correspondence Degree between a Person and the Educational Environment
Authors:   Amur State University, Pavlova E.V. , Krasnoryadtseva O.M. ,   Tomsk State University (Tomsk, Russian Federation)
Published: December 2021

The article deals with the problem of student engagement in the modern educational space. Based on the analysis of the works of Russian and foreign authors, it is shown that engagement is considered as a process, as condition, as a mechanism, as a situation, as an investment of time and energy in the performed activity. There are also various approaches to understanding the structure of engagement, its types, forms, levels, indicators and diagnostic criteria. The most studied is the behavioral side of engagement, the least studied are the mechanisms of the formation of involvement and its management. The authors proposed a systemic anthropological psychology as a methodological basis for the study of student engagement, the foundations of which were laid in the works of Tomsk scientists (V.E. Klochko, E.V. Galazhinsky, O.M. Krasnoryadtseva, O.V. Lukyanov). In this vein, the concordance between the person and the environment is considered as the main mechanism for the formation of engagement. The measure of compliance is the “resource of engagement” of a person, which includes instrumental and value and meaning characteristics. The instrumental component includes various aspects of self-regulation of activity in a changing environment, the value and meaning component is the value and meaning dimension of the objective conditions of activity. The resource of engagement determines the fundamental possibility of including a person in an environment with specific characteristics. The authors conducted an empirical study of the "resource of engagement" of students of two large universities in the Russian Far East; the sample consisted of 498 people. As a result of the factor analysis of the data, the dimensions of the concordance between the student and the educational environment were identified. These are subjective disorganization of activity (impossibility of performing activities in an environment with the specific parameters); flexibility and readiness for change (orientation towards activities in a changing environment); willingness to take responsibility (focus on own forces and resources); result orientation (experience of pleasure in achieving specific results); willingness to work in conditions of uncertainty; selfishness (self-dependence and focus on gaining benefits); focus on the labor process (without taking into account its goals and working conditions). For each option, the directions of psychological assistance aimed at increasing the academic and social involvement of students in the educational space are determined.
Possibilities and Limitations of Extrafoveal Perception: an Analytical Review
Authors:   Lomonosov Moscow State University (Moscow, Russian Federation), Dreneva A.A. ,   The Russian Presidential Academy of National Economy and Public Administration, Krichevets A.N. ,   Lomonosov Moscow State University (Moscow, Russian Federation)
Published: December 2021

The article presents an analytical review of studies in the field of extrafoveal perception. The region of extrafoveal vision combines the parafovea and periphery of the retina, so extrafoveal perception is the perception of objects which projections are outside of the fovea. For a long time, it has been believed that extrafoveal vision, in contrast to foveal, has a lower acuity and resolution and is used mainly for preliminary analysis of the visual field and selection of relevant objects for their more thorough analysis in fovea. However, the literature shows that extrafoveal perception is much more interesting and autonomous process as it has been previously considered. The paper analyzes a number of works showing that it is possible to identify both specific features of simple stimuli and rather complex objects, such as faces or whole scenes, up to the possibility of their semantic analysis, even in extrafoveal vision. The review considers the history of studies on extrafoveal perception, from the earliest works (Hueck, 1840; Aubert, Foerster, 1857) to the most recent ones of the last 5 years. These works have analyzed the main factors influencing the effectiveness of extrafoveal vision, for example, cortical magnification factor, which reflects differences in the number of neurons in the visual cortex responsible for processing stimuli depending on the region of the retina: the closer the object is to the fovea, the more neurons are involved in its processing, and vice versa. Other factors determining the efficacy of extrafoveal perception include the following: crowding effect when the target object on the periphery surrounded by distractors is identified worse than a separately located stimulus; specific characteristics of a target and distractors (for example, contexts evoking pop-out effect). Crowding effect is also related to the question of correlating two forms of processing extrafoveal information: preattentive processing (parallel “bottom up” processing) and covert attention (moving the point of deeper analysis along the visual field without eye movements) which can be controlled up to some degree. The other factors influencing the effectiveness of extrafoveal perception concern the context of a task (categorical search in laboratory conditions, analysis of the real world scenes, reactions to extrafoveal stimuli during definite activity) and individual differences. Additionally, we have analyzed the works on the possibilities of training extrafoveal perception, which can affect both higher-level processes, for example, identification of the context of complex scenes, perception of emotions and categorical visual search, and lower-level visual functions, such as identification of spatial orientation, contrast perception and reduction of crowding effect.
SYMBOLIC REPRESENTATION OF FORCED OSCILLATIONS OF BRANCHED MECHANICAL SYSTEMS
Authors:   High Tech Center (Kurgan, Russian Federation), Popov I.P.
Published: December 2021

A calculation of dynamics of a mechanical system with n degrees of freedom, including inert bodies and elastic and damping elements, involves the derivation and integration of a system of n second-order differential equations, which are reduced to a differential equation of 2n order. An increase in the degree of freedom of the mechanical system by one increases the order of the resulting differential equation by two. The solution of higher-order differential equations is rather cumbersome and time-consuming. Integration of equations is proposed to be replaced with rather simpler algebraic methods. A number of relevant theorems that relate both active and reactive parameters of mechanical systems in the series and parallel connection of mechanical power consumers are proved. Using parallel-series and series-parallel connections as an example, the calculation methods for branched mechanical systems with any number of degrees of freedom, based on the use of symbolic or complex representation of forced harmonic oscillations, are shown. The phase relationships determining loading conditions and a possibility of its artificial change are considered. The vector diagrams of the amplitudes of forces, velocities and their components in a complex plane at a zero time instant are presented, which give a complete and clear idea of the relationship between these quantities.
NUMERICAL SIMULATION OF COMBUSTION OF THE COMPOSITE SOLID PROPELLANT CONTAINING BIDISPERSED BORON POWDER
Authors:   Tomsk State University (Tomsk, Russian Federation), Poryazov V.A. , Moiseeva K.M. ,   Tomsk State University (Tomsk, Russian Federation), Krainov A.Yu. ,   Tomsk State University (Tomsk, Russian Federation)
Published: December 2021

A problem of combustion of the composite solid propellants containing various powders of metals and non-metals is relevant in terms of studying the effect of various compositions of powders on the linear rate of propellant combustion. One of the lines of research is to determine the effect of the addition of a boron powder on the burning rate of a composite solid propellant. This work presents the results of numerical simulation of combustion of the composite solid propellant containing bidispersed boron powder. Physical and mathematical formulation of the problem is based on the approaches of the mechanics of two-phase reactive media. To determine the linear burning rate, the Hermance model of combustion of composite solid propellants is used, based on the assumption that the burning rate is determined by mass fluxes of the components outgoing from the propellant surface. The solution is performed numerically using the breakdown of an arbitrary discontinuity algorithm. The dependences of the linear burning rate of the composite solid propellant on the dispersion of the boron particles and gas pressure above the propellant surface are obtained. It is shown that the burning rate of the composite solid propellant with bidispersed boron powder changes in contrast to that of the composite solid propellant with monodispersed powder. This fact proves that the powder dispersion should be taken into account when solving the problems of combustion of the composite solid propellants containing reactive particles.
New species and records of Tricholoma (Agaricales: Tricholomataceae) sections Genuina and Megatricholoma from Costa Rica and United States
Authors: Ovrebo Clark L. , Halling Roy E. , Hughes Karen W. , Kuo Michael
Published: December 2021

Species of Tricholoma sections Genuina and Megatricholoma are characterized by having pilei that are some shade of brown, and by white or yellow lamellae that also discolor some shade of brown. From Costa Rica in sect. Genuina, we describe as new T. luteopallidum, T. cacumense, and T. talamancense, and confirm the occurrence of Tricholoma stans, and from the United States describe as new Tricholoma brunneoluteum. Tricholoma roseoacerbum from sect. Megatricholoma is con-firmed for Costa Rica. Morphology as well as ITS sequences are employed to confirm the species’ identifications or circumscription of the new species.
A calibration-based method for interval reliability analysis of the multi-manipulator system
Authors: Wang Wei , Liu Shuangyao , Wang Jin , Lu Guodong
Published: December 2021

The multiple manipulators can construct a special multi-agent system with the distinction that the type can be serial or parallel according to their cooperative way. We proposed a comprehensive method to handle the problem of reliability estimation. The wide and narrow bound method are applied to calculate the interval reliability respectively when multiple manipulators work as the series system. Aims to decrease the system complexity and enhance the dynamic adjustment capability, the base frame calibration technique is presented to convert the series system to a parallel one, naturally the reliability can be improved significantly. A system composed by three manipulators is utilized as an example to illustrate the feasibility of the proposed method.