bluuebunny/crossref_metadata_2025 huggingface dataset:
ESTILOS DE APRENDIZAGEM NA FATEC ZONA LESTE
Authors: Maiellaro Valéria Rufino , Pasquali Vitor Hugo Chioda
Published: April 2021

Os estilos de aprendizagem são um estado duradouro e estável que deriva configurações consistentes das transações entre o indivíduo e o seu meio ambiente, podendo ser utilizados como fatores motivacionais. Kolb(1984) Baseado no Inventário do autor, este estudo tem como objetivo levantar os estilos de aprendizagem dos discentes do ensino superior dos cursos da Fatec Zona Leste, para possibilitar a prática de desenvolvimento de planos de aula baseados nas necessidades de abordagem de aprendizagem com foco no perfil que cada discente apresenta. Podendo, portanto, definir de forma mais assertiva, a prática de metodologias ativas para cada turma, tornando a dinâmica da aula e da relação entre docente e discente muito mais dinâmica e produtiva. Por meio de questionário contendo 12 questões em escala likert, fundamentado no Inventário de Kolb (1984) que define quatro estilos de aprendizagem: acomodador, divergente, convergente e assimilador, foi efetuada a coleta de dados para identificar o estilo de um total de 1103 respondentes. Por meio dos resultados destes dados, é possível efetuar planos de aula baseando-se na predominância do perfil de estilo de aprendizagem apresentado por curso. Este estudo ganha força e importância neste momento em que os docentes estão nas aulas à distância, sem a possibilidade de perceber e analisar sua sala de aula (discentes) para conduzir suas práticas e métodos de ensino.
A ATIVIDADE DE ZELADORIA URBANA E A INCIDÊNCIA DE PROPAGANDA IRREGULAR EM POSTES DE ILUMINAÇÃO – UM ESTUDO EXPLORATÓRIO
Authors: Santos Leandro , Feitosa Wilian
Published: April 2021

A poluição visual é um desafio para a gestão de uma cidade, pois passa pelo equilíbrio entre permitir o acesso pelo cidadão de informações, de modo a garantir sua participação na vida plena em sociedade, e, ao mesmo tempo, garantir que o espaço público seja saudável e não seja apropriado por nenhum dos entes econômicos. Por isso, muitas municipalidades decidiram regular ou mesmo proibir o uso do espaço público por mensagens comerciais. Paralelo a isso, um contingente de anunciantes “piratas” utiliza o espaço público para fazer anúncios irregulares, sem autorização, depredando itens como muros e postes de iluminação, tornando mais complexa a atividade de zeladoria municipal. Esse artigo versa sobre entender como propaganda não permitida é disponibilizada diariamente em diferentes locais da cidade, em especial nos postes de iluminação, alvos históricos de vandalismo, por meio de entrevistas com gestores municipais da Prefeitura municipal de São Paulo, observação e desk research, gerando recomendações às políticas públicas relativas ao tema.
ESTÉTICA CAPILAR NO CONTEXTO DO EMPREENDEDORISMO FEMININO: CUSTOS, RENDA, ESTIMA E INDEPENDÊNCIA FINANCEIRA
Authors: Stroparo Telma Regina , Cordiak Sandra Mara
Published: April 2021

O objetivo da pesquisa é identificar custos, resultados e significações da atividade de estética capilar, no contexto do empreendedorismo feminino, em um salão de beleza administrado por mulheres. Metodologicamente, o estudo caracteriza-se como aplicada, descritiva, com abordagem qualitativa e estudo de caso. Foram coletados dados relativos à estética capilar no período de janeiro a dezembro de 2019. Sob os aspectos financeiros, verificou-se que a atividade é rentável, embora apresente pontos negativos como a manipulação de produtos químicos. No entanto, com o decorrer da pesquisa, verificou se que os resultados perpassam aos financeiros, pois a profissionalização permitiu independência financeira, melhora da estima, empoderamento feminino e flexibilidade no horário de trabalho.
The Mammies and Uncles of the South: The Subversive Tales of Joel Chandler Harris and Kate Chopin
Authors: Milică Iulia Andreea
Published: April 2021

The aim of this essay is to look at Southern racism from a different perspective, namely the subversive influence of the black uncles and mammies, depicted as kind, loyal and caring, in the racial education of the white Southern children. However, these narrators, though meant to comply with the racist requirements of their masters, take control of the stories and, with caution and dissimulation, attempt to educate the children they care for towards a more tolerant outlook on race. The dangers of such an endeavor, especially at the height of segregation and racial violence at the end of the nineteenth century (in the post-Reconstruction South), are evident in the ambiguous critical reception of Joel Chandler Harris’ Uncle Remus stories and Kate Chopin’s writings, the authors chosen for analysis. Oscillating from a belief in their compliance to their age’s prejudices and codes and a trust in their rebellious attitudes, critics and readers reacted to these stories in different, even contradictory manners. Our intention is to demonstrate that the use of the slave narrator is a subversive way of teaching the white child the truth about the plight of slavery and sway him/her into a more empathic attitude towards racial and class difference.
Spaces of Identity: Gender, Ethnicity, and Race in Salome of the Tenements (1923) and Quicksand (1928)
Authors: Iancu Anca-Luminiţa
Published: April 2021

The 1920s marked a fervent time for artistic and literary expression in the United States. Besides the famous authors of the decade, including F. Scott Fitzgerald, Ernest Hemingway, and William Faulkner, Anzia Yezierska and Nella Larsen, among other female writers, also managed to carve “a literary space” for their stories. Yezierska and Larsen depicted the struggles and tribulations of minority women during the fermenting 1920s, with a view to illustrating the impact of ethnicity and race on the individual female identity. Yezierska, a Jewish-American immigrant, and Larsen, a biracial American woman, share an interest in capturing the nuances of belonging to a particular community as an in-between subject. Therefore, this essay sets out to examine the intersections of gender, race, ethnicity, and choice in shaping individual identities in public and private in-between spaces in Yezierska’s Salome of the Tenements (1923) and Larsen’s Quicksand (1928).
Anticancer effects of 7,8-dihydromethysticin in human leukemia cells are mediated via cell-cycle dysregulation, inhibition of cell migration and invasion and targeting JAK/STAT pathway
Authors: Xiao Yi , Deng Taoran , Jiang Lijun , Wang Di
Published: April 2021

The main focus of this research work was to study the anti-cancer properties of 7,8-dihydromethysticin against HL-60 leukemia cells. Investigations were also performed to check its impact on the phases of the cell cycle, cell migration and invasion, JAK/STAT signalling pathway and intracellular mitochondrial membrane potential (MMP) and reactive oxygen species (ROS). Cell proliferation was assessed through 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay and effects on colony formation were examined via clonogenic assay. Flow cytometry and Western blott analysis were performed to investigate the distribution of cell cycle phases. Flow cytometric analysis was performed for the examination of MMP and ROS production. The effect on JAK/STAT signalling pathway was examined through Western blot analysis. Results depicted that 7,8-dihydromethysticin induced concentration- as well as time-dependent inhibition of cell proliferation in leukemia HL-60 cells. Clonogenic assay indicated potential suppression in leukemia HL-60 cell colonies. The 7,8-dihydromethysticin molecule also caused cell cycle arrest at G2/M-phase along with concentration-dependent inhibition of cyclin B1, D1 and E. ROS and MMP measurements indicated significant ROS enhancement and MMP suppression with increasing 7,8-dihydromethysticin concentrations. Additionally, 7,8-dihydromethysticin led to remarkable dose-reliant inhibition of cell invasion as well as cell migration. Therefore, 7,8-dihydromethysticin should be considered a valuable candidate for leukemia research and chemoprevention.
Biochemical parameters variations with season, age, sex, parity and pregnancy in crossbred goats raised in Tiaret, Algeria
Authors: Abdelkader Berrani , Samia Meliani , Akila Bourabah
Published: April 2021

The aim of this study was to determine the influence of season, age, sex, parity and gestation status on some biochemical parameters in local cross-bred goats raised in Tiaret, Algeria. Ninety cross bred local goats, from 2019 to 2020, aged between nine and seventy-two months at different physiological stage were used. Animals belong to different farms in Tiaret located at the north-west Algeria (35°22’ N, 1°19’ E). The mean values of triglycerides, creatinine and calcium were significantly (p<0,05) higher in winter than in spring. The physiological state of the goat had a significant influence (p<0,05) on cholesterol, urea, total proteins, calcium and phosphorus, with a high average values in non-pregnant goats, while triglycerides and globulin had significant higher values in postpartum and pregnant femals, respectively. In our work, parity had a significant influence (p<0,05) on cholesterol, calcium and phosphorus, with high average values in young goats and a significant influence (p<0,05) on triglycerides and creatinine with high average values in primiparous ones. Age significantly influenced (p<0,05) cholesterol, triglycerides, total protein, calcium and globulin. The results obtained from this study could serve as reference values for the local goats and other regions or countries with similar climatic and nutritional conditions.
Ability of metal trace elements accumulation by Lichens, Xanthoria parietina and Ramalina farinacea, in Megres area (Setif, Algeria)
Authors: Amina Belguidoum , Takia Lograda , Messaoud Ramdani
Published: April 2021

The accumulating ability of the atmospheric Metal Trace Elements (MTE) of two lichenic species thalli; Xanthoria parietina and Ramalina farinacea were evaluated in the region of Megres. The recorded concentrations of MTE (Fe, Cu, Mn, Cd, and Pb) were determined by atomic absorption spectrophotometry (AASF). The ability to accumulate MTE in X. parietina thalli is considerably greater than that of the fruticulous lichen R. farinacea in all stations studied. The general pattern of the elements accumulated in the thalli of the two species in decreasing order of their concentrations was Fe> Mn> Pb> Cu> Cd. The Fe values are very high in X. parietina thalli with an average of 35237.5 ± 3394.2 mg/kg dry wt. In contrast, the Pb concentrations are high, especially in the southern station of the Megres region. The results showed that X. parietina is a hyper-accumulating species of MTE, compared to R. farinacea. This work highlights the ecological importance of this species as a stable and resistant pioneer in this fragile region.
Geological-geomorphological characteristics and petrographical composition of the St. Anastasia Island
Authors: Dimitrov Dimitar , Banushev Banush
Published: April 2021

St. Anastasia Island is one of the symbols of the cultural and historical heritage of the Republic of Bulgaria. This raises the need for the study of risky oceanographic factors, climatic phenomena, risky geological processes as well as detailed petrographical characteristics of the Upper Cretaceous volcanic rocks forming the islands. The results of the petrographical study show that the island was built by Alkali feldspar trachytes. The volcanics from St. Anastasia Island shows a close petrochemical similarity to the volcanics from Alatepenski paleovolcano belonging to the “Peripheral Volcanic Centers” in the region.
To Kill a Mockingbird and Legal Ethics: On the Role of Atticus Finch’s Attic Rhetoric in Fulfillment of Duties to Client, to Court, to Society, and to Self
Authors: Kundmueller Michelle
Published: April 2021

Atticus Finch, protagonist of Harper Lee’s To Kill a Mockingbird and longtime hero of the American bar, is well known, but he is not well understood. This article unlocks the secret to his status as the most admired of fictional attorneys by demonstrating the role that his rhetoric plays in his exemplary fulfillment of the duties of an attorney to zealously represent clients, to serve as an officer of the court, and to act as a public citizen with a special responsibility for the quality of justice. Always using the simplest accurate wording, focusing on reason over emotion, and speaking in the same manner whether in private or in public, Atticus’s rhetoric exemplifies the ancient Roman style known by students of rhetoric as “Attic.” Using this style to navigate the potential for conflict among his duties, Atticus reveals the power, the elegance, and the ethical necessity of Attic rhetoric. Connecting Atticus’s name to the Attic style of rhetoric for the first time, this article advances several scholarly debates by demonstrating the mutual compatibility of the duties imposed by the Model Rules of Professional Conduct and proffering a powerful tool to attorneys seeking to practice or to teach improved ethical conduct.
Hierarchical Hexagon: A New Fault-Tolerant Interconnection Network for Parallel Systems
Authors: Tripathy Laxminath , Tripathy Chita Ranjan
Published: April 2021

A new interconnection network topology called Hierarchical Hexagon HH(n) is proposed for massively parallel systems. The new network uses a hexagon as the primary building block and grows hierarchically. Our proposed network is shown to be superior to the star based and the hypercube networks, with respect to node degree, diameter, network cost, and fault tolerance. We thoroughly analyze different topological parameters of the proposed topology including fault tolerance routing and embedding Hamiltonian cycle.
An Effective e-Commerce Recommender System Based on Trust and Semantic Information
Authors: Shambour Qusai Y. , Turab Nidal M. , Adwan Omar Y.
Published: April 2021

Electronic commerce has been growing gradually over the last decade as a new driver of the retail industry. In fact, the growth of e-Commerce has caused a significant rise in the number of choices of products and services offered on the Internet. This is where recommender systems come into play by providing meaningful recommendations to consumers based on their needs and interests effectively. However, recommender systems are still vulnerable to the scenarios of sparse rating data and cold start users and items. To develop an effective e-Commerce recommender system that addresses these limitations, we propose a Trust-Semantic enhanced Multi-Criteria CF (TSeMCCF) approach that exploits the trust relations and multi-criteria ratings of users, and the semantic relations of items within the CF framework to achieve effective results when sufficient rating data are not available. The experimental results have shown that the proposed approach outperforms other benchmark recommendation approaches with regard to recommendation accuracy and coverage.
Fatty acid composition of night-scented stock (Matthiola bicornis (Sibth. & Sm.) DC.) raw materials
Authors: Pinkevych Viktoriia O. , Dababneh Moeen F. , Burda Nadiia Ye. , Zhuravel Iryna O.
Published: April 2021

Introduction. With due consideration of the properties of fatty acids, as well as their importance for normal life activity and human development, research into the fatty acid composition of poorly studied plants and the search for new domestic plant sources of polyunsaturated fatty acids is a mainstream trend in modern pharmacy.

Aim. Aim of research – determination of fatty acid qualitative composition and content in threshed grass, stalks, roots and seeds of Night-scented stock ‘Queen of Night’ and ‘Evening Scent’ cultivars as grown in Ukraine.

Methods. Gas chromatography.

Results. Both cultivars of Night-scented stock taken for analysis had similar fatty acid composition – 5 saturated, 5 (4 for seeds) monounsaturated and 2 polyunsaturated fatty acids, Quantitatively, in all tested parts of the herb polyunsaturated and monounsaturated fatty acid dominated, making in total 88.92% and 88.62% in the seeds of Queen of Night and Evening Scent cultivars, respectively, and averaging 65% in other parts of the tested cultivars. Linolenic and linoleic acids prevailed among the polyunsaturated fatty acids, whereas oleic acid prevailed among the monounsaturated.

Conclusion. Night-scented stock can be utilized as a source of polyunsaturated fatty acids for the development of drugs and for standardization of tested raw materials.
Technical Phraseologisms - A Contrastive Legal -Linguistic Study on the Example of the German and Arab Criminal Judgment
Authors: Shemy Amany
Published: April 2021

The present article is a contrastive legal-linguistic study that deals with phraseologisms in criminal judgments of the German and Arabic legal systems. It aims primarily to determine legal phraseologisms that occur repeatedly in the same fixed form in German and Arabic criminal judgments and that have a specialized meaning. It focuses on the identification of types of such phraseologisms in the various components of criminal judgments. The aim is to find out which legal-linguistic phraseologisms are used in which parts of the texts of criminal judgments and what differences and similarities can be identified between the German and Arabic systems in this respect.
An Influence Prediction Model for Microblog Entries on Public Health Emergencies
Authors: An Lu , Yi Xingyue , Han Yuxin , Li Gang
Published: April 2021

This study aims at constructing a microblog influence prediction model and revealing how the user, time, and content features of microblog entries about public health emergencies affect the influence of microblog entries. Microblog entries about the Ebola outbreak are selected as data sets. The BM25 latent Dirichlet allocation model (LDA-BM25) is used to extract topics from the microblog entries. A microblog influence prediction model is proposed by using the random forest method. Results reveal that the proposed model can predict the influence of microblog entries about public health emergencies with a precision rate reaching 88.8%. The individual features that play a role in the influence of microblog entries, as well as their influence tendencies are also analyzed. The proposed microblog influence prediction model consists of user, time, and content features. It makes up the deficiency that content features are often ignored by other microblog influence prediction models. The roles of the three features in the influence of microblog entries are also discussed.
Pelargonium root (Pelargonium sidoides DC) extract in paediatric patients - food supplement or medicine?
Authors: Baraniak Justyna , Kania-Dobrowolska Małgorzata
Published: April 2021

Pelargonium sidoides DC is an interesting plant with various biological properties. Pharmaceutical companies and manufacturers of food supplements are particularly interested in its beneficial effects in upper respiratory tract infections. The search for new therapeutic options is especially important at a time when antibiotics are prescribed too often. However, due to proven clinical effects of extracts from Pelargonium sidoides, their use in diet supplements, especially intended for infants and small children, is highly disputable. The paper presents reports on the use of Pelargonium sidoides extracts in paediatrics and also tries to answer the question whether the pelargonium extract should be qualified as food supplement or medicine.
Cardiorespiratory, Metabolic and Perceived Responses to Electrical Stimulation of Upper‐Body Muscles While Performing Arm Cycling
Authors: Zinner Christoph , Matzka Manuel , Krumscheid Sebastian , Holmberg Hans-Christer , Sperlich Billy
Published: April 2021

This study was designed to assess systemic cardio-respiratory, metabolic and perceived responses to incremental arm cycling with concurrent electrical myostimulation (EMS). Eleven participants (24 ± 3 yrs; 182 ± 10 cm; 86 ± 16.8 kg) performed two incremental tests involving arm cycling until volitional exhaustion was reached with and without EMS of upper-body muscles. The peak power output was 10.1% lower during arm cycling with (128 ± 30 W) than without EMS (141 ± 25 W, p = 0.01; d = 0.47). In addition, the heart rate (2-9%), oxygen uptake (7-15%), blood lactate concentration (8-46%) and ratings of perceived exertion (4-14%) while performing submaximal arm cycling with EMS were all higher with than without EMS (all p < 0.05). Upon exhaustion, the heart rate, oxygen uptake, lactate concentration, and ratings of perceived exertion did not differ between the two conditions (all p > 0.05). In conclusion, arm cycling with EMS induced more pronounced cardio-respiratory, metabolic and perceived responses, especially during submaximal arm cycling. This form of exercise with stimulation might be beneficial for a variety of athletes competing in sports involving considerable generation of work by the upper body (e.g., kayaking, cross-country skiing, swimming, rowing and various parasports).
Fabrication of nano-patterns of photoresist by ultraviolet lithography and oxygen plasma
Authors: Cheng E , Tang Suzhou , Zou Helin , Zhang Zhengyan , Wang Yao
Published: April 2021

Nanofluidic devices with two-dimensional nanochannels have many applications in biology and chemistry, however, it is still a challenge to develop a low-cost and simple method for fabricating nano-masks that can be used to produce two-dimensional nanochannels. In this paper, a novel low-cost and simple method, based on UV lithography and oxygen plasma, was proposed to fabricate nano-mask. The influence of exposure time on the photoresist mesas was investigated in the ultraviolet lithography process. The parameters of RF power and treatment time on the width reduction of photoresist mesas were analyzed by the oxygen plasma. In our work, in order to increase the efficiency controllability of photoresist removal, a RF power of 90 W, a pressure of oxygen plasma 60 Pa, and the time division method were adopted to remove photoresist by oxygen plasma. Finally, nano-patterns of photoresist mesas with bottom width of 330 nm were successfully fabricated. The proposed method provides a low-cost way to produce high-throughput two-dimensional nanochannels.
Effects of annealing parameters on phase, structure and thermochromic properties of VO2 (M) derived from nanostructured VO2(B)
Authors: Barra Hamdi Muhyuddin , Chen Soo Kien , Tamchek Nizam , Talib Zainal Abidin , Lee Oon Jew , Tan Kar Ban
Published: April 2021

Synthesis of thermochromic VO2 (M) was successfully done by annealing hydrothermally-prepared VO2 (B) at different temperatures and times. Conversion of the metastable VO2 (B) to the thermochromic VO2 polymorph was studied using thermogravimetric analyzer (TGA) under N2 atmosphere. Moreover, the phase and morphology of the synthesized samples were studied using X-ray diffraction (XRD) and field-emission scanning electron microscopy (FE-SEM), respectively. Accordingly, the XRD scans of all the annealed samples exhibited the presence of monoclinic VO2 (M), while the FE-SEM images of the samples showed the formation of nanorods and nanospheres, particularly those heated at high temperatures (650 °C and 700 °C). Meanwhile, differential scanning calorimetry (DSC) was used to measure the phase transition temperature (τc), hysteresis, and enthalpy of the prepared VO2. Based on these results, all samples displayed a τc of about 66 °C. However, the hysteresis was high for the samples annealed at lower temperatures (550 °C and 600 °C), while the enthalpy was very low for samples heated at lower annealing time (1.5 h and 1 h). These findings showed that crystallinity and nanostructure formation affected the thermochromic properties of the samples. In particular, the sample annealed at 650 °C showed better crystallinity and improved thermochromic behavior.
Structural and magnetic properties of gadolinium modified BiFeO3
Authors: Guzmán L.M. Ramírez , Pacheco A.F. Cruz , Cuaspud J.A. Gómez , Vargas C.A. Parra
Published: April 2021

This paper reports the synthesis and characterization of the Bi0:94Gd0:06FeO3 sample obtained by solid state reaction method. The structural and morphological analysis was performed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Rietveld refinement analysis, confirming the obtaining of a rhombohedral crystalline phase and R3c space group (a = b = 5.577 Å and c = 13.847 Å), with an interconnected structure. Studies by X-ray photoelectron spectroscopy (XPS) revealed trivalent oxidation states of Bi, Fe and Gd ions. The synthesized sample exhibited a non-linear M–H loop indicating a weak ferromagnetic behavior with a remnant magnetization of 6.34 emu˙mol−1 and a coercive field of 295 Oe. The obtained structural and magnetic characteristics make these materials of great interest as multiferroic components.
Dance as a Cultural Meeting Point
Authors: Iversen Anette Sture
Published: April 2021

Dance as a cultural meeting point is a project that Dance in Schools, Norway, executed in three schools in Oslo during the spring of 2013, with funds from The Norwegian Directorate for Education and Training. The funding was to be given to projects that would, amongst other things, help schools reach curriculum objectives, increase the use of varied working methods, increase the pupils’ understanding of different cultural expressions and experience art. The project included a one-day workshop, a survey and reports from two observers. One class in three different schools got an introduction to Norwegian folk dance, hip hop, Bollywood and creative dance, and created and performed dances to each other in small groups. Dance in Schools’ aim was to gather information about the pupils’ knowledge of and experience with dance, contribute to increasing the pupils’ and teachers’ understanding of dance and how dance can stimulate learning, and social competence. The cultural meeting intended to be the meeting of dance forms and pupils from different cultures. The most important cultural meeting, however, turned out to be between the pedagogues’ dance culture and the pupils’ school culture.
Dancing with the Turquoise Waters of Mexico–Embodied Experiences and Observations for Environmental Justice
Authors: Hannus Susanna
Published: April 2021

This article explores the author’s embodied experiences in and with the turquoise waters of Mexico. This journey started with an exploration of the healing potential of water through water therapy and dance. It led towards a search for ways to protect these precious water ecosystems against climate change, deforestation of waterfront ecosystems and pollution. The autoethnographic research process thus developed into a dialogue about environmental justice. Employing visual ethnography and visual arts, the author utilises photography of her dance in and with the turquoise waters of Mexico. She hopes that this article will inspire new thoughts about these precious water ecosystems and actions to protect them so they can remain pure and vivid for future generations.

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The Effect of the Shielding Gas Flow Rate on the Geometry, Porosity, Microstructure and Mechanical Properties of Laser Weld Joints
Authors: Vyskoč Maroš , Dománková Mária , Sahul Martin , Vyskočová Monika
Published: April 2021

In this research, studied was the microstructure of AW5083 aluminium alloy butt laser weld joint fabricated under the Ar + 30 vol. % He shielding gas. The light and electron microscopy, computed tomography, microhardness measurements and tensile testing were used for evaluation of the weld joint properties. Porosity volume in the weld metal (WM) was observed by the computed tomography (CT). The volume of porosity in the weld No. 1 was 0.05 mm3, while that in the weld No. 2 was 1.45 mm3. The width of the weld No. 1 was 4.69 mm, the average tensile strength was 309 MPa, and the average microhardness was 55.7 HV0.1. Polyhedral grains with an average grain size diameter of 48 μm were present in the heat-affected zone. The fusion zone (FZ) was of a dendritic structure with an average grain size of 20 μm. Three intermetallic compounds β-Al3Mg2, γ-Al12Mg17 and Al49Mg32, which were identified by transmission electron microscope (TEM) analysis, were present in inter-dendritic areas of the WM. The weld joint was characterized by ductile fracture in the base metal (BM). In the FZ, a small number of Al2O3 particles of irregular shapes were observed.
INOVAÇÃO TECNOLÓGICA NA INDÚSTRIA DA CONSTRUÇÃO CIVIL: USO DO SEIF COMO MONITORAMENTO E GESTÃO DE SEGURANÇA NO TRABALHO
Authors: Da Silva Antonia Keely Araujo , Branco Emilly Silva Castelo , Rego Kellen Fernanda Da Silva , Sousa Flávio Henrique De Jesus Pestana
Published: April 2021

Devido ao atual cenário da indústria da construção civil nasce a necessidade de programas que aperfeiçoem os métodos de planejamento e controle de segurança, o SEIF surgiu como proposta para promover um comportamento seguro no ambiente de produção ocasionando uma diminuição de acidentes e de custos com ações trabalhistas.  Essa proposta visa o cumprimento das Normas Regulamentadoras vigentes de Segurança e Saúde no Trabalho (SST), possibilitando que os gestores, as equipes e responsáveis pela preservação da saúde acompanhem em tempo real a condição de segurança dos trabalhadores no canteiro de obra. PALAVRAS-CHAVE: Segurança do trabalho. SEIF. Controle de segurança.
A REFORMA TRABALHISTA (LEI Nº 13.467/2017) E OS NOVOS PARADIGMAS DO TELETRABALHO NO BRASIL
Authors: Nogueira Nayhara Régia Dos Santos , Da Silva Adriana Mendonça
Published: April 2021

A influência da tecnologia nas relações de emprego contribuiu para o surgimento de novas modalidades laborais, em específico, o teletrabalho, que se apresenta como espécie do trabalho a distância. A regulamentação do teletrabalho surge diante da necessidade do mundo pós-moderno, cada vez mais tecnológico e assim, a legislação precisa se reinventar para se adequar às demandas sociais. O teletrabalho é caracterizado pela utilização de instrumentos informatizados e telemáticos, capazes de modificar o modo como se relacionam empregado e empregador. As relações de emprego e trabalho são diferenciadas através da análise dos requisitos caracterizadores do vínculo empregatício, quais sejam: subordinação, pessoalidade, onerosidade e não eventualidade, bem como os direitos inerentes aos teletrabalhadores, em específico, a remuneração da extrajornada e o sobreaviso com a utilização de instrumentos telemáticos e informatizados. Objetiva-se discutir o teletrabalho e as suas implicações, bem como as modificações advindas com a Lei nº 12.551/11 e a Lei nº 13.467/que inovam ao equiparar os meios pessoais de direção aos meios telemáticos e informatizados. O art. 75-B da CLT estabelece que a prestação de serviços preponderantemente fora das dependências do empregador, com a utilização de tecnologias de informação e de comunicação que, por sua natureza, não se constituam como trabalho externo, confirmando assim, que a utilização destes meios tecnológicos é a exteriorização do poder de direção patronal, mediante subordinação. A legislação deve se adequar à realidade, regulamentando as relações de trabalho, com o fim de garantir os direitos fundamentais e concretização dos princípios constitucionais sociais e o direito material trabalhista. Em boa parte dos países desenvolvidos e subdesenvolvidos o teletrabalho é uma realidade, e como tal, vem evoluindo com vistas a modernizar a seara trabalhista. O entendimento dos tribunais acerca desta temática, vêm assegurando e ampliando direitos justrabalhistas com vistas a dar a efetividade ao princípio da dignidade da pessoa humana e o fundamento constitucional do valor social do trabalho, conforme art. 1° da Constituição.Palavras-chave: Reforma Trabalhista. Teletrabalho. Direito do Trabalho.
Impact of a NICU parental engagement model of care on emergency room visits and hospital readmissions in preterm infants.
Authors: Fucile Sandra , Bates Amanda , Nagy Stephanie , Dow Kimberly
Published: April 2021

Introduction

            There is an increased occurrence of emergency room visits and hospital readmission in preterm infants compared to full-term infants after their initial hospital discharge.

Objectives

            This study analyzes the effects of parental engagement programs, specifically the Family Integrated Model of Care (FiCare) on emergency room visits and hospital readmissions within the first 30 days after discharge from the NICU.

Methods

            A retrospective cohort study was completed at the Kingston Health Sciences Centre (KHSC) and Quinte Health Care (QHC) Centre. The sample consisted of two groups of preterm infants born at or less than 33 weeks gestation: infants who participated in a parental engagement program (FiCare program), and those who were not involved in the FiCare program. Infants in both groups were matched for gestational age and birth weight (± 500 grams).

Results

            A total of 73 infants (36 pre-FiCare, 37 FiCare) were enrolled in the study. Infants in the FiCare group had significantly fewer emergency room visits within the first 30-days post-discharge than the pre-FiCare group (7 vs 1 visits, p=0.025). There was a no significant reduction in the number of hospital admissions between the two groups.

Conclusion

            Parental engagement programs have dual benefits of enhancing infant outcomes as well as serving as an effective method to reduce the number of emergency room visits in preterm infants after discharge from the NICU.
‘All my Relations’ in Ruby Slipperjack’s Silent Words (1992)
Authors: Doreen Kyra
Published: April 2021

This presentation examines the extent of which Nature in Ruby Slipperjack’s Silent Words (1992) serves to reconnect 11-year-old protagonist, Danny, to his Anishinaabe identity. When Danny flees his run-down house in a settler-colonial town, he finds limitless support from the plant and animal life of Northern Ontario. The relationship between boy and Nature transcends the boundary between the human and the more-than-human world and becomes that of a student and teacher. Danny’s reconnection to Nature and his willingness to listen to its many abstract teachings are central to the reclamation of his indigeneity. With the help of some human interpreters, Danny develops the epistemological tools and the humility to allow Nature to heal his past traumas as well. The Anishinaabe medicine wheel teachings profess that a holistically healthy person seeks to find balance among their intellectual, spiritual, emotional, and physical self. Danny achieves this on his journey through the woods while decolonizing and re-indigenizing himself. This reading of the role of more-than-humans in Silent Words also identifies Nature’s propensity to share Anishinaabe teachings in subtle and unexpected ways for those who are willing to listen. Though it is a fictional text, the transformative learning and healing processes Danny goes through after reconnecting with Nature are generalizable to the real-world. In many ways Danny’s reclamation of his Indigenous identity mimics the large-scale Indigenization movement happening throughout Turtle Island today.
The Indian Girl-Wife: Not Even a Woman, But Already a Wife
Authors: Seyone Prishni
Published: April 2021

The institution of child marriage throughout the nineteenth and early twentieth century not only stripped Indian girls of their agency, but also frequently denied them their education. In 1884, Rukhmabai, a young Indian girl of just eleven-years-old, was married to Dadaji Bhikaji, a man eight years older. Although Rukhmabai was able to resist the forced marriage and eventually went on to become India’s first female doctor, Rukhmabai’s victory was generally an anomaly of the time and reflected a tenacity to attain greater education. Throughout her writings, Rukhmabai expresses deep sadness from being denied the opportunity for an adequate education, and identifies female education as one of the chief disproportionate impacts of child marriage for girls. This project will trace the evolution of child marriage negotiations from the 1891 Age of Consent Act to the 1929 Child Marriage Restraint Act, specifically addressing the way that related discussions allowed Indian women to establish the importance of their adolescent years in their educational pursuit. By uncovering the voices of both child marriage victims and female reformers, we are able to garner an understanding of the changing Indian social landscape at the time and the way that Indian women negotiated their agency against the backdrop of globalization, the nationalist agenda, and caste, religious, and regional differences. This project will stress female adolescence as an evolving concept throughout twentieth century India, and will draw on the important relationship between education and female agency.
Ecosystem Carbon Fluxes Analyzed Using Eddy Covariance Technique
Authors: Routly Rachel
Published: April 2021

Eddy covariance (EC) is an important measurement technique used in physical geography and atmospheric sciences to measure the exchange of carbon dioxide between an ecosystem and the atmosphere at a specific location. However, EC produces a net exchange of carbon dioxide yet research questions require an understanding of component fluxes, carbon dioxide uptake by plants through photosynthesis and carbon dioxide emissions due to plant and soil respiration.  There are two major methods to partition EC measurements into these component fluxes: night-time and day-time partitioning methods. In the night-time method, nighttime measurements are used to estimate daytime respiration and calculate photosynthesis as a residual and in the daytime method, a light response curve is created to estimate daytime respiration and photosynthesis.  This study investigates the benefits and drawbacks of these partitioning methods on two carbon dioxide exchange datasets from ecosystems in Canada. 

 

The research sites were a) Mer Bleue, a peatland bog near Ottawa, Ontario and b) Cape Bounty, a high arctic tundra in Nunavut. By using a combination of the REddy-Proc software package, developed by the Max Planck Institute for Biogeochemistry, along with additional Matlab processing, the differences in photosynthesis and respiration due to partitioning methods are presented and discussed.
A Good Man is a Trickster to Find
Authors: Tye Taylor
Published: April 2021

In my presentation, I will demonstrate the contrast between the pioneer of the Southern Grotesque, Flannery O’Connor, and her famous story “A Good Man is Hard to Find” with Taylor’s use of the gothic in his YA novel. O’Connor adapted her version of the gothic from her predecessors such as Shelley and Poe. But she veers away from the creation of a fantastical monster tradition of the Romantics to drive the focus of the “monstrous” to the very human but harmful behaviors of her characters. Similarly, Taylor’s narrative does away with the over-the-top fantasy of the Romantic tradition and instead chooses to set the narrative in a realistic space with relevant characters. The difference between O’Connor and Taylor is that in O’Connor’s Southern Gothic the setting is the pinnacle of her story while Taylor’s Indigeneity shines through with his humor, traditional storytelling, and orality in his narrative. Differences aside, it is clear that the motive of each text is a call for social reform in O’Connor’s criticism of the social structure of the American South and in Taylor’s criticism of colonization.
Changes in Knowledge Across Time
Authors: Parsons Kenda , Rigg Vivian , Boudreau Della , Doucet Ellen , Toutounji Lily , Hamwi Lojain , Kamawar Deepthi
Published: April 2021

Our study focuses on children’s understanding of their own knowledge and how it changes over time. Preschool-aged children perform above chance when asked about current knowledge, but only children older than 5 years of age performed above chance for past, future, or intraindividual knowledge (Atance & Caza, 2018; Caza et al., 2016). However, we do not currently know whether awareness of past and future knowledge is related. While this type of awareness seems conceptually related to metacognition (the awareness of one’s own ignorance or knowledge; Rohwer et al., 2012), the relation to this skill is unknown. Thus, the goal of the current study is to investigate how children’s awareness of their own epistemic knowledge is related to their metacognitive abilities.
This study will explore children between the ages of 3.5- through 5-years-old, who will be assessed on their understanding of their current, past, and future knowledge, as well as other tasks assessing metacognitive skills. Further, we will explore the role of theory of mind and inhibitory control. We predict that children who do well on the epistemic knowledge task for the past will display better performance on the task asking about the future, and that both will be related to the other cognitive skills measured.
Due to the current global situation, we converted our study materials to an online format. Our poster will highlight this process and discuss ways to approach challenges in online developmental testing. Though data collection is ongoing, we present initial insight into the process, drawbacks, and benefits of online testing.
Keywords: Epistemic Knowledge, Metacognition, Theory of Mind, Child Development
 
 
References
Atance, C. M., & Caza, J. S. (2018). “Will I know more in the future than I know now?” Preschoolers’ judgments about changes in general knowledge. Developmental Psychology, 54(5), 857–865. http://dx.doi.org.proxy.library.carleton.ca/10.1037/dev0000480
Caza, J. S., Atance, C. M., & Bernstein, D. M. (2016). Older (but not younger) preschoolers understand that knowledge differs between people and across time. British Journal of Developmental Psychology, 34(3), 313–324. https://doi.org/10.1111/bjdp.12130
Rohwer, M., Kloo, D., & Perner, J. (2012). Escape from metaignorance: How children develop an understanding of their own lack of knowledge. Child Development, 83(6), 1869–1883. https://doi.org/10.1111/j.1467-8624.2012.01830.x
In Light of the Lamps: A Comprehensive Analysis of the Ceramic Oil Lamps from the Roman Fort at Humayma
Authors: Hickox Lilly
Published: April 2021

The archaeological site of Humayma, located at the northwest corner of the Hisma desert of Jordan, has a long history of permanent settlement; beginning with the Nabataeans, followed by Roman, Byzantine, and Islamic occupations. Shortly after Emperor Trajan’s conquest of the Nabataean Kingdom in 106 CE, a Roman fort emerged alongside the pre-existing trade route, which the Romans renamed the Via Nova Traiana. Excavations at the fort, directed by J. P. Oleson in 1995, 1996, 2000, 2004, and 2005 and M. B. Reeves in 2012, unearthed a collection of ceramic oil lamps, comprised of four complete lamps and fifty-eight fragments. The author recently carried out a complete evaluation of the fort’s ceramic lamp collection, remotely analysing the lamps based on project images, descriptions, and contextual information in order to produce a catalogue and report.

Results included Nabataean, Roman, and Byzantine types, dating from the 1st to 5th century CE, revealing an intricate and diverse account of material culture at the fort. The Nabatean rosette lamp and Byzantine slipper lamp were the two most prevalent types, while few Roman lamps were found. The author interpreted data and made suggestions in light of the history, regional trade, stratigraphic complexities, and evolving cultural identity of the site. This poster summarizes the ceramic lamp findings, identifies anomalous items, and considers the significance of chronological aberrations in relation to the fort’s military and civilian occupations over 400 years.
Selection for two different mating systems in Aquilegia canadensis
Authors: Dean-Moore Chloë
Published: April 2021

Because plants are sessile, they depend on biotic and/or abiotic vectors to transfer pollen from the male pollen-producing anthers to the female pollen-receiving stigmas. As a result, plant mating systems evolve through selection on the floral traits that influence how much pollen is transferred from anthers to stigmas within flowers (self-pollination) vs. between flowers on different individuals (outcrossing). Thus, mating systems are influenced by the traits that dictate the relative abundance of self-versus outcrossed pollen on stigmas. Spatial separation between anthers and stigmas within flowers (herkogamy) is expected to regulate self-pollination yet there are few estimates of how natural selectin acts on this trait.  Aquilegia canadensis (columbine, Ranunculaceae) is a short-lived herbaceous plant of rocky outcrops throughout eastern North America that makes seed through both self-fertilization which is influenced by herkogamy, and outcrossing, which is likely influenced by the plant’s floral display size (flower number and size). Selfing provides reproductive assurance in natural populations of columbine, whereas outcrossing appears to produce much fitter offspring, and there is a trade-off between thes two components of the mating system. We, therefore, predicted correlational selection between herkogamy and display size: selection would favour reduced herkogamy among individuals with small floral displays (to enhance reproductive assurance) and increased herkogamy among individuals with large floral displays (to reduce selfing when outcrossing is likely). We tested this prediction by using multivariate linear regression to estimate phenotypic selection through seeds/fruit and seeds/plant on floral traits and plant size for 1015 plants from nine populations of A. canadensis at the Queen’s University Biological Station. Although we detected positive direction selection on display size mostly through flower number, we did not detect selection on herkogamy or correlational selection between herkogamy and display size. As expected, large size is universally favoured yet selection of floral morphology is weak.
A study on corrosion resistance of ISO 5832-1 austenitic stainless steel used as orthopedic implant
Authors: N. M. Braguin Lilian , A. J. da Silva Caio , O. Berbel Larissa , L. Rossi Jesualdo , Saiki Mitiko , Costa Isolda , De Viveiros Bárbara V. G.
Published: April 2021

The ISO 5832-1 austenitic stainless steel used as biomaterial is largely applied in the area of orthopedics, especially in the manufacture of implants, such as temporary or permanent replacement of bone structures. The objective of this study was to evaluate the localized corrosion resistance of the ISO 5832-1 stainless steel used in orthopedic implants by electrochemical tests in two different solutions. The results of this study are of great interest to evaluate the corrosion of metallic implants that can result in the release of corrosion products into bodily fluids causing possible adverse biological reactions. The determination of the chemical elements in the composition of the ISO 5832-1 stainless steel was performed by neutron activation analysis (NAA). The samples for electrochemical tests were grinded with silicon carbide paper up to #4000 finishing, followed by mechanical polishing with diamond paste. The open circuit potential measurements and anodic polarization curves were obtained in solution of 0.90 wt. % of NaCl and of simulated body fluid (SBF). The results indicated that the ISO 5832-1 stainless steel presented a high resistance to crevice corrosion in simulated body fluid solution but high susceptibility to this form of corrosion in the chloride solution.
Physico-Chemical Properties And Antioxidant Activities of Rhodomytus tomentosa syrup
Authors: Dara Widia , Nurhamidah Nurhamidah
Published: April 2021

Antioxidants are natural compounds found in many fruits, as well as in Rhodomyrtus tomentosa. The research, Rhodomyrtus tomentosa will be processed in form of syrup. The results of the organoleptic test of syrup ranged from like to  very like by panelists. Determine the  physical and chemical properties on syrup Rhodomyrtus tomentosa were acidity value is 4,41, total acid is 0,003%, total dissolved solids 23,74oBrix and sugar level of syrup is 21%.  The results of Vitamin C content analysis of 1.25 mg / 100 g. The syrup contains Fe 0.525 mg / L and Cu 0.220 mg / L. In the Rhodomyrtus tomentosa  syrup there is no lead (Pb), cadmium (Cd),  Mercuri (Hg), Arsenic (As) and  Stanum (Sn) metal. The content of antioxidant activity sirup  is 10.31 %.