bluuebunny/crossref_metadata_2025 huggingface dataset:
Individual Differences in Decision Strategy Relate to Neurochemical Excitability and Cortical Thickness
Authors: Filmer Hannah L. , Loughnan Kathleen , Seeto Jennifer X. , Ballard Timothy , Ehrhardt Shane E. , Shaw Thomas B. , Wards Yohan , Rideaux Reuben , Leow Li-Ann , Sewell David K. , Dux Paul E.
Published: September 2023

The speed-accuracy trade-off (SAT), whereby faster decisions increase the likelihood of an error, reflects a cognitive strategy humans must engage in during the performance of almost all daily tasks. To date, computational modeling has implicated the latent decision variable of response caution (thresholds), the amount of evidence required for a decision to be made, in the SAT. Previous imaging has associated frontal regions, notably the left prefrontal cortex and the presupplementary motor area (pre-SMA), with the setting of such caution levels. In addition, causal brain stimulation studies, using transcranial direct current stimulation (tDCS), have indicated that while both of these regions are involved in the SAT, their role appears to be dissociable. tDCS efficacy to impact decision-making processes has previously been linked with neurochemical concentrations and cortical thickness of stimulated regions. However, to date, it is unknown whether these neurophysiological measures predict individual differences in the SAT, and brain stimulation effects on the SAT. Using ultra-high field (7T) imaging, here we report that instruction-based adjustments in caution are associated with both neurochemical excitability (the balance between GABA+ and glutamate) and cortical thickness across a range of frontal regions in both sexes. In addition, cortical thickness, but not neurochemical concentrations, was associated with the efficacy of left prefrontal and superior medial frontal cortex (SMFC) stimulation to modulate performance. Overall, our findings elucidate key neurophysiological predictors, frontal neural excitation, of individual differences in latent psychological processes and the efficacy of stimulation to modulate these.

SIGNIFICANCE STATEMENTThe speed-accuracy trade-off (SAT), faster decisions increase the likelihood of an error, reflects a cognitive strategy humans must engage in during most daily tasks. The SAT is often investigated by explicitly instructing participants to prioritize speed or accuracy when responding to stimuli. Using ultra-high field (7T) magnetic resonance imaging (MRI), we found that individual differences in the extent to which participants adjust their decision strategies with instruction related to neurochemical excitability (ratio of GABA+ to glutamate) and cortical thickness in the frontal cortex. Moreover, brain stimulation to the left prefrontal cortex and the superior medial frontal cortex (SMFC) modulated performance, with the efficacy specifically related to cortical thickness. This work sheds new light on the neurophysiological basis of decision strategies and brain stimulation.
Surgical fixation of ipsilateral femoral neck and shaft fractures: a matter of debate?
Authors: Bastian Johannes D , Ivanova Silviya , Mabrouk Ahmed , Biberthaler Peter , Caba-Doussoux Pedro , Kanakaris Nikolaos K
Published: September 2023

Segmental femoral fractures represent a rare but complex clinical challenge. They mostly result from high-energy mechanisms, dictate a careful initial assessment and are managed with various techniques. These often include an initial phase of damage control orthopaedics while the initial manoeuvres of patient and soft tissue resuscitation are employed.

Definitive fixation consists of either single-implant (reconstruction femoral nails) or dual-implant constructs. There is no consensus in favour of one of these two strategies.

At present, there is no high-quality comparative evidence between the various methods of treatment. The development of advanced design nailing and plating systems has offered fixation constructs with improved characteristics.

A comprehensive review of the existing evidence with a step-by-step description of these different definitive fixation strategies based on three case examples was conducted. Furthermore, the rationale for using single vs dual-implant strategy in its case is presented with supportive references.

The prevention of complications relies mainly on the strict adherence to basic principles of fracture fixation with an emphasis on careful preoperative planning, the quality of the reduction, and the application of soft tissue-friendly surgical methods.
EFEKTIVITAS PEMBELAJARAN DARING BERBANTUAN YOUTUBE DENGAN MODEL PEER TEACHING TERHADAP PRESTASI BELAJAR MATEMATIKA SISWA
Authors: Wijayanti Anisa
Published: September 2023

The COVID-19 pandemic has forced learning to be done online using certain media and applications. This study was aimed to analyze the effectiveness of Peer Teaching Model assisted by Youtube app on student achievement in mathematics learning from home process during pandemic COVID-19 in term of cognitive, affective and student participation. This research is deskriptif study with a mixed-method approach. The subject in this study were students in grade 11.1 and 11.2 MIPA at a state senior high school in Bogor in the 2nd semester of 2020/2021 academic year. Data collection techniques were carried out through tests to determine student achievement, questionnaires to measure student interest in the learning model and the media used, as well as assignments and interviews to determine student participation. The effectiveness criterion used is that at least 75% of students have a positive response and have a test score above Kriteria Ketuntasan Minimal (KKM). The results showed that the percentage of student learning completeness was 77% (good category), the positive response of students was 80.29% and participation in assignments was very good.
STUDI LITERASI MATEMATIS
Authors: Poernomo Erdy , Kurniawati Lia , Atiqoh Khamida Siti Nur
Published: September 2023

The need for good literacy, especially mathematical literacy in the industrial era 4.0 and the low international assessment are the main concerns for Indonesia. The study aims is to provide an overview of mathematical literacy and numeracy literacy from various sources. The research method used is descriptive qualitative. Sources of data come from various relevant documents collected through library sources. The result of the study found that mathematical iteration and numeracy literacy have a close relationship when viewed from the scope of context, competence, and content. In terms of context, both mathematical literacy and numeracy literacy have the same scope, namely personal, work, social, and scientific. In terms of competence, all competencies in numeracy literacy are included in mathematical literacy. Mathematical literacy has 3 competencies that are not possessed by numeracy literacy including communication, mathematizing, and devising strategies for solving problems. In terms of content, all content in numeracy literacy is included in mathematical literacy. Mathematical literacy has 7 contents that are not owned by numeracy literacy including functions, algebraic expressions, equations and inequalities, co-ordinate systems, counting principles, data variability and its description, and samples and sampling.
Glomerulonephritis
Authors: Keskinyan Vahakn Shant , Lattanza Brittany , Reid-Adam Jessica
Published: September 2023

Glomerulonephritis (GN) encompasses several disorders that cause glomerular inflammation and injury through an interplay of immune-mediated mechanisms, host characteristics, and environmental triggers, such as infections. GN can manifest solely in the kidney or in the setting of a systemic illness, and presentation can range from chronic and relatively asymptomatic hematuria to fulminant renal failure. Classic acute GN is characterized by hematuria, edema, and hypertension, the latter 2 of which are the consequence of sodium and water retention in the setting of renal impairment. Although presenting signs and symptoms and a compatible clinical history can suggest GN, serologic and urinary testing can further refine the differential diagnosis, and renal biopsy can be used for definitive diagnosis. Treatment of GN can include supportive care, renin-angiotensin-aldosterone system blockade, immunomodulatory therapy, and renal transplant. Prognosis is largely dependent on the underlying cause of GN and can vary from a self-limited course to chronic kidney disease. This review focuses on lupus nephritis, IgA nephropathy, IgA vasculitis, and postinfectious GN.
Effect of dry extract from Saccharomyces cerevisiae culture with selenium-containing amino acids on the productivity and chemical composition of meat of broiler chickens
Authors: Poberezhets J. M. , Chudak R. A. , Razanova O. P. , Skoromna O. I. , Farionik T. V. , Ohorodnichuk G. M. , Holubenko T. L. , Glavatchuk V. А.
Published: September 2023

Introduction of biologically active supplements to the diet of poultry results in maximal use of nutrients and positively influences the live weight and slaughter parameters. This promotes rational and economical use of fodders and boosts the poultry productivity. We studied a mineral feed supplement – an organic selenium compound, which has a much greater bioavailability than inorganic sources of selenium. Selenomethionine is easily digested in the organism and effectively used for synthesis of proteins. Broiler chickens of the experimental group that had been consuming the selenoamino-acid feed additive had greater live weight at the age of 14–42 days, compared with the control. Intake of the mineral supplement by the broiler chickens in the experimental group increased their mean daily increment by 8.5% and the absolute increment by 8.6%, compared with the control peers. In the experimental group of broilers, the mineral supplement increased the pre-slaughter live weight by 8.4%, weight of intact carcass by 10.1%. Also, the weight of the semi-processed carcasses (i.e. those with removed intestines and cloaca, filled crop, oviduct and ovary (in female specimens) increased by 4.3%, and the weight of the processed carcasses (the internal organs and abdominal-cavity fat and esophagus of which were removed, without head, legs and wing metacarpals) increased by 8.0%, compared with the control group of broilers. In the experimental group, the feed supplement gave 13.7% rise in the weight of the breast muscles and 14.5% increase in the weight of the thigh muscles, compared with the control group. Intake of this supplement in the experimental group promoted 7.5% increase in the weight of the gizzard by and 9.2% increase in the weight of the duodenum, as compared with the control. Usage of the selenoamino-acid feed supplement increased the protein concentration in the breast muscles of the broiler chickens by 1.9%, compared with the control. Intake of the mineral supplement increased the amounts of dry matter and fat in the thigh muscles of the experimental group, compared with the control group. Therefore, adding dry yeast extract to diet of broilers together with selenium-containing amino acids is a promising method of increasing the effectiveness of poultry farming.
Molecular characterization and phylogenetic analysis of pseudorabies virus isolated from pigs in Ukraine
Authors: Ukhovskyi V. V. , Romanov O. M. , Chechet O. M. , Sytiuk M. P. , Korniienko L. Y. , Tsarenko T. M. , Radzykhovskyi M. L. , Gerilovych A. P.
Published: September 2023

The article presents the results of a molecular genetic study of two isolates of the Pseudorabies virus that were isolated from pigs in Ukraine. Bioinformatic analysis of the gE gene fragment of Aujeszky's disease virus (Pseudorabies virus) isolates was carried out in order to determine the phylogenetic relationships and homology of nucleotide sequences. Fragments of the Aujeszky disease virus genome corresponding to the C-terminal region of the gE gene were selected for sequencing and further analysis. As a result of the conducted studies, it was demonstrated that the nucleotide sequences of the analyzed samples differ from each other by the presence of ACG insert in the tandem repeats region. Comparison of the studied sequences with the sequences of strains/isolates of the Aujeszky's disease virus found in Europe and Asia, presented in the GenBank database, indicates that such an insert is characteristic for the Min-A and HNJZ strains (position 1487 in the gE gene) isolated in Asia. Analysis of the homology of nucleotide sequences showed that the sequence of the gE gene fragment of sample No. 1 is 100% identical to the sequences of strains 89V87 and 00V72 isolated in Belgium. The homology of the nucleotide sequence of the gE gene fragment of sample No. 3 with strains 89V87 and 00V72 was 99.13%. In order to clarify the analyzed samples belonging to a particular genogroup (genetic cluster), a phylogenetic dendrogram was constructed. This demonstrates the phylogenetic relationships between strains/isolates of the Aujeszky's disease virus. It was found that the analyzed samples belong to the genetic cluster uniting European strains/isolates, and the studied isolates are most genetically close to strains 89V87 and 00V72.
Coadaptation mechanism of the gut microbiota and human organism to physical loading
Authors: Kuibida V. , Kokhanets P. , Lopatynska V.
Published: September 2023

The human organism is home to trillions of bacteria, viruses and fungi. In order to survive, they have to adapt to the living environment of a host. The organism has adapted to mutual functioning by benefiting from microbiota in a certain way or removing its negative effects. The gut microorganisms influence all the organism systems, including the synthesis of heat-shock proteins. Their species composition and functional condition undergo changes depending on physical activity of a host organism. While moderate physical loading is of no doubt positive for the diversity of microbiota and the functioning of the intestinal barrier, the mechanism of influence of physical exercises on the microbiota biodiversity, its host and coadaptation is yet to be identified. Lactobacillus acidophilus bacteria were found to dominate in long-distance-track athletes who train endurance, while Bacteroidescoccae dominated in sprinter runners. Marathon runners were found to have many representatives of conventionally pathogenic Veillonella genus. They convert lactate into propionate and acetate – substrates for ATF formation. Bacteria generate an additional energy and increase the endurance of an athlete. At the same time, they cause inflammatory process in the host’s gut. A temperature-increase effect is what the adaptation mechanisms to physical exercise and bacterial inflammatory process in the gut have in common. Rise in the temperature to a threshold value initiates an increased synthesis of heat-shock proteins, which regulate the function of the intestinal barrier by controlling high-density proteins. They are released from damaged or stressed cells and act as local “danger signals”. Detecting molecular mechanisms of interaction between the gut microbiota and the human organism subject to physical exercise can be a valuable for identifying safe volumes and thresholds of training load and maintaining health.
Not only for Christmas: Prophylactic oral application of trans-cinnamaldehyde alleviates acute murine campylobacteriosis
Authors: Heimesaat Markus M. , Mousavi Soraya , Weschka Dennis , Bereswill Stefan
Published: September 2023

The prevalence of Campylobacter jejuni infections is increasing worldwide and responsible for significant morbidities and socioeconomic expenses. The rise in antimicrobial resistance of C. jejuni underscores the urge for evaluating antibiotics-independent compounds as therapeutic and preventive treatment options of human campylobacteriosis. Given its well-known anti-microbial and immune-modulatory properties we here surveyed the disease-modifying effects of trans-cinnamaldehyde pretreatment in experimental campylobacteriosis. Therefore, secondary abiotic IL-10−/− mice were orally challenged with trans-cinnamaldehyde starting 7 days prior C. jejuni infection. Whereas gastrointestinal colonization properties of the enteropathogens remained unaffected, trans-cinnamaldehyde pretreatment did not only improve clinical signs in infected mice, but also alleviated colonic epithelial cell apoptosis on day 6 post-infection. Furthermore, trans-cinnamaldehyde application resulted in less pronounced T cell responses in the colon that were accompanied by dampened proinflammatory mediator secretion in distinct intestinal compartments. Notably, the immune-modulatory effects of trans-cinnamaldehyde were not restricted to the intestinal tract but could also be observed in extra-intestinal organs such as the liver and kidneys. In conclusion, our preclinical placebo-controlled intervention study provides first evidence that due to its immune-modulatory effects, trans-cinnamaldehyde constitutes a promising prophylactic option to alleviate campylobacteriosis.
Construcción y validación de un folleto para padres/cuidadores de niños con trastorno por déficit de atención con hiperactividad (TDAH)
Authors:   Universidade Regional do Cariri, Gomes da Silva Kely Vanessa Leite , de Almeida Rebouças Cristiana Brasil , Cruz Neto João , César de Almeida Paulo
Published: September 2023

Introdução: Os materiais educativos, como as cartilhas, são instrumentos que ajudam no cuidar e elucidam intervenções relevantes e sensíveis ao contexto de saúde, especialmente no cuidado domiciliar a crianças desordem no neurodesenvolvimento. Objetivo: construir e validar cartilha para orientar pais e cuidadores de crianças com Transtorno de Déficit de Atenção e Hiperatividade. Materiais e Métodos: estudo metodológico para construção e validação de cartilha por juízes e pelo público-alvo. Desenvolveu-se redação, designer e layout do material com posterior validação por juízes, considerando-se o índice de validade de conteúdo para análise dos dados. Resultados: cartilha composta por 13 temas e 32 páginas. A validação contou com 21 juízes de conteúdo obtendo índice de 0,89. Sete juízes em aparência avaliaram e pontuou-se o índice de 0,91. 17 participantes do público-alvo avaliaram conteúdo geral com índice de 0,99. Após ajustes, o índice de legibilidade obteve percentual satisfatório de 54%. Discussão e Conclusão: O material construído retrata o cotidiano das famílias, apresenta ilustrações em serviços de saúde e de educação e é sensível ao público estudado. A cartilha foi considerada válida quanto ao conteúdo e aparência e apta para ser utilizada no cuidado da enfermagem à criança com o transtorno, contribuindo para orientação adequada de pais e cuidadores.
Why Rape Law Revisions should be Consistent with Anderson’s Negotiation Model
Authors: Jervis Emma
Published: September 2023

In this essay I argue that the current law structure unobjectionably fails to protect women against cases of rape and needs reform. I further maintain that Anderson’s suggestion of ‘negotiation consent’ is the most appropriate line of reform, and I will defend her proposal in the face of potential objections. The current rape law in the UK was implemented in 2003, which revised previous laws firstly defined in the Sexual Offenses Act of 1953. Despite the ostensibly ‘objective’ nature of this law, which will be further examined in this essay, many feminist philosophers have noted the biases within the law which favour male interests. This essay explores the present issues within UK law, as well as our current understandings of what constitutes ‘a reasonable belief of consent’, that fail to protect women in instances of rape. This foundational attitude towards such matters influence performative revision models, such as the No Model and the Yes model, which I consider within this essay. Yet the inadequacies of such approaches, as I demonstrate, mirror some of the current issues with rape law in the UK today; such as the lack of recognition of men’s frequent inability to interpret women’s nonverbal behaviour and disregard for instances where one person changes their mind.

Furthermore, I advocate for Anderson’s proposal of the negotiation model as an alternative reform of the law as well as society’s attitude towards sex and how consent can be clearly obtained. This model, when legally applied, will not only legally protect women in cases of rape, but eventually protect them from the present societal norms that perpetuate the imminent risk of rape and sexual exploitation.

 Through making the act of negotiation a legal requirement, I maintain that there would be a ‘ripple effect’ throughout society that would, eventually, lead to a change in public expectations of men and women.

Anderson’s emphasis on either party being able to initiate the negotiation establishes a much more open-minded attitude towards gender roles and expectations of individuals based on their gender. This is the greatest strength of Anderson’s argument, as this equality-driven initiative would eventually seep into society’s wider expectations of individuals when initiating sex, and create a world where understanding what the other person is anticipating in a sexual situation is the norm.
DESENVOLVIMENTO PROFISSIONAL DOCENTE E EDUCAÇÃO BÁSICA NA PANDEMIA DE COVID-19
Authors: SILVA CAMILA LOPES DA , SANTOS DAVID MOISES BARRETO DOS
Published: September 2023

RESUMO: Este trabalho tem como objetivo investigar a atuação e desenvolvimento profissional de professores brasileiros durante o ensino remoto emergencial na pandemia de covid-19, considerando aspectos como condições de trabalho, de aprendizagem da docência e da saúde mental. Uma amostra de 364 professores da Educação Básica no Brasil foi avaliada a partir de instrumentos de autorrelato considerando dados sociodemográficos, condições de trabalho, aspectos relativos à atuação docente e aprendizado da docência (atividades, saberes e formação docentes), saúde mental e sentido da vida. Os resultados apontaram que as mudanças no trabalho docente ocorrem em meio à ausência ou pouca experiência da maioria dos professores com ensino on-line e/ou com uso de tecnologia digital, além da falta de apoio e condições de trabalho adequados. As principais tarefas foram mediadas por tecnologia e os saberes didáticos tiveram um papel fundamental neste contexto. A formação oferecida aos professores pelas instituições educativas foi insuficiente em grande parte, provocando a necessidade de (auto)formações complementares. Os saberes experienciais demonstraram ser fundamentais na aprendizagem da docência. Finalmente, a saúde mental demonstrou ter um papel crucial nesse processo de desenvolvimento profissional, além de demonstrar uma correlação positiva com a presença de sentido na vida. Implicações para o desenvolvimento profissional docente são discutidas.
CONVERSATIONS BETWEEN RESEARCH AND ORIENTATION: WALKING BAREFOOT IN A PUBLIC SCHOOL
Authors: NICOLAIEWSKY CLARISSA DE ARRUDA , GONÇALVES TERESA N. R.
Published: September 2023

ABSTRACT: In this article, we propose to think about research in education through the reflections of a doctoral student and her advisor on two unique processes: the relationship with the school that is produced in the student encounter with its inhabitants and the orientation relationship that accompanies and sustains this investigative path. Considering this experience, we intend to think about the intersections between research and orientation through the movement of attention, presence, and freedom. The participant observation research, carried out for 18 months in a municipal school in Duque de Caxias, followed teachers’ work on the literacy cycle considering the evidence offered by children of what the practices produced in them. We understand that research built from an openness to the field and the transformations that such a relationship can produce allows us to access other possibilities in the relationship with knowledge, with research and orientation that differ from what has been common ground in the university. From this experience, we problematize the paths of research in education and the ways in which orientation in the process of training researchers in education has been understood, distancing ourselves from certain dominant modes of knowledge production and claiming an ethical commitment to the transformation of self in the encounter with the world by valuing elements that science tends to underestimate: subjectivity, uncertainty, the body, sensitivity, and life.
Avaliação da aplicabilidade do ensaio de compressão de anel à quente para determinar o coeficiente de atrito no ensaio de torneamento do aço ABNT 1045 por meio de análise estatística
Authors: Jardim Thaís Ramos Capai , Câmara Marcelo Araújo , Magalhães Frederico de Castro , Santos Anderson Júnior dos
Published: September 2023

RESUMO O atrito nas interfaces ferramenta/cavaco e ferramenta/peça é complexo dificultando a determinação do coeficiente de atrito nos processos de usinagem. Assim, vários ensaios tribológicos foram desenvolvidos para simular as condições de corte e determinar o coeficiente de atrito. Este trabalho apresentou análise comparativa do coeficiente de atrito entre o aço ABNT 1045 e WC-10Co revestido com AlCrN por meio de dois métodos: ensaio de torneamento e ensaio de compressão de anel à quente. O ensaio de torneamento foi realizado com corte oblíquo nas velocidades de corte 150 e 220 m/min. A aquisição dos sinais das componentes de força da usinagem por meio de um dinamômetro. O ensaio de compressão de anel foi realizado nas temperaturas de 200 e 400 °C. Os coeficientes de atrito foram obtidos por meio de modelos matemáticos. A análise estatística do coeficiente de atrito apontou equivalência do coeficiente de atrito no ensaio de torneamento na velocidade de corte 150 m/min com o ensaio de compressão de anel à quente 200 °C. Assim como no ensaio de torneamento na velocidade de corte 220 m/min com o ensaio de compressão de anel à quente 400 °C. A análise macrográfica do anel após a deformação no ensaio de compressão de anel observou a influência da temperatura de ensaio no deslocamento do raio neutro. A análise superficial dos anéis e das matrizes do ensaio de compressão foi realizada por meio de microscopia óptica (MO) e rugosidade Ra, onde observou-se o aumento da rugosidade após o ensaio e a presença de desgaste abrasivo.
Características ecográficas y hallazgos patológicos en embarazos múltiples
Authors: Yara Yuly Natalia Guzmán , Calvo Montserrat Uriel , Beltrán Sandra Liliana , Bandera Liliana , Hoz-Valle José de la , Romero Ximena Carolina
Published: September 2023

Resumen Objetivos: el objetivo del estudio fue determinar la prevalencia de los hallazgos patológicos ecográficos en embarazos múltiples de acuerdo con la corionicidad en dos instituciones en Bogotá-Colombia. Métodos: estudio de cohorte, descriptivo, retrospectivo. Las variables biométricas realizadas y los hallazgos patológicos se evaluaron de acuerdo con el tipo de embarazo gemelar. Se realizó caracterización estadística con frecuencias absolutas, cálculo de frecuencias relativas en variables cualitativas, medidas de desviación estándar, mediana y rango intercuartílico. Además, se realizó análisis descriptivo de la información. Resultados: se realizaron 528 estudios en 141 gestantes, encontrando 98,5% (n=139) gemelares y 1,4% (n=2) triples. Se calculó una prevalencia de 35,4% de complicaciones fetales siendo más frecuente la restricción del crecimiento fetal (p=0,37). Según la corionicidad, esta complicación se presentó en 50% (1/2) de los tricoriónicos, 16,6% (7/42) de los monocoriónicos y 11,3% (11/97) de los dicoriónicos. Conclusión: la restricción del crecimiento fetal fue el hallazgo más común en los embarazos múltiples en la población estudiada.
Institutional pressures on setting up big data analytics capability
Authors: Klein Luciana , Guilhem Ana Paula Sano , Sousa Henrique Adriano de , Oliveira Everton Lucio Soares de
Published: September 2023

Abstract This article aims to analyze the setting up of tangible resources and human big data skills, in the face of institutional pressures, in the big data analytics capability in Brazilian companies. Innovation influences the environment in which companies are inserted, increasing uncertainties, resulting in behavioral changes of social players. In response to individual efforts to rationally deal with uncertainties and constraints, organizational homogenization emerges. However, the institutional pressures that influence the setting up of specific resources are still not fully understood in the literature. The replication of the study by Dubey (2019b) is considered, seeing big data technology as an innovation that has caused changes in the social context, thus we seek to grasp the setting up of organizational big data resources in Brazilian companies to build BDA capability, due to institutional pressures. The study makes it possible to see how institutional pressures set up BDA capability, thus being able to provide means to investment allocation decisions in data technology or improve technical management skills in the business intelligence team. The study brought to light the environmental response, resulting from the technological innovation of big data, in Brazilian companies. This demonstrates that organizations adhering to big data technology select their resources in the face of various pressures, in order to build big data analytics capability. This research has a descriptive and quantitative nature, and its operationalization took place through a survey. The research population consists of Brazilian companies that use technology with a large volume of structured and/or unstructured data, to generate results and insights, which support decision making. The survey participants were employees of Brazilian companies that have positions related to building big data analytics capability, located through the LinkedIn platform. 136 valid responses were obtained. To test the hypotheses, the Structural Equation Modeling technique was used by means of the software Smartspls v. 3.2.3. This study contributes by bringing an understanding of organizational behavior in the face of institutional pressures (coercive, normative, and mimetic) when selecting tangible resources and human big data skills to build BDA capability, using Resource-Based Theory. It is observed that the setting up of BDA capability is influenced by tangible resources and human skills. Tangible resources are selected due to formal pressures, competitive conditions, and by imitating existing standards in the market. Meanwhile, the required human skills are impacted, through legitimation and professional networks of decision makers.
Fund management fees: the role of industry competition and investor sentiment
Authors: Silva Sabrina Espinele da , Pereira Leticia Fernandes , Iquiapaza Robert Aldo
Published: September 2023

Abstract This article analyzes the influence of industry competition and investor sentiment on the likelihood of change in investment fund management fees in Brazil. Due to the wide variety of existing funds, with various characteristics and objectives, there may be significant differences in the fees observed. Thus, it is worth analyzing the factors that influence the amount of fund management fees charged, since the literature highlights that the payment of fees is related to fund performance. Also, it is observed that the Brazilian fund industry, despite having a large number of available funds, is still concentrated in few management firms, which is an indication that there is a low competition level. In practical terms, this investigation may be useful to investors in the fund selection process, since the management fee represents one of the main costs an investor faces when investing in this industry. The results point out the importance of adopting greater transparency in the disclosure of fees by financial institutions, since there are indications that the amounts charged are influenced by the characteristics of funds and investors. The methodology adopted involves Logit/Probit regression models, which had changes in the management fee as an explained variable and, as explanatory variables, the proxies of competition and investor sentiment, in addition to other control variables. It was observed that the investor sentiment proxy was significant in explaining the probability of change in management fees, mainly for setting higher fees. However, no statistical significance was observed for industry competition. This research innovates by analyzing the role of industry competition and investor sentiment on the probability of changing management fees, thus contributing to fill a gap found in the Brazilian national literature.
Comunidade compassiva de favela: ampliando o acesso aos cuidados paliativos no Brasil
Authors: Mesquita Maria Gefé da Rosa , Silva Alexandre Ernesto , Coelho Lívia Pereira , Martins Matheus Rodrigues , Souza Marcela Teixeira de , Trotte Liana Amorim Corrêa
Published: September 2023

RESUMO Objetivo: Descrever a implementação de uma comunidade compassiva nas favelas da Rocinha e Vidigal, localizadas na cidade do Rio de Janeiro. Método: Relato da experiência da implementação de uma Comunidade Compassiva a partir das bases conceituais da Organização Mundial da Saúde, amparada pelas diretrizes da extensão universitária. Resultados: Inicialmente, lideranças locais e moradores foram recrutados e receberam treinamento sobre cuidados paliativos. Posteriormente, profissionais de saúde de diferentes especialidades engajaram-se no projeto por meio da prática do voluntariado. Foram instituídas visitas domiciliares na modalidade interconsulta e “apadrinhamentos” por moradores e profissionais de saúde às pessoas em cuidados paliativos e familiares. Por fim, a Rede de Atenção à Saúde do território foi integrada de forma a reconhecer o projeto como rede de apoio. Conclusão: Destacamos a experiência como trabalho vivo em saúde, que envolve relações e processos criativos, os quais mobilizam o saber técnico estruturado e as relações entre as pessoas e as tecnologias leve-duras e leves, tornando factível o reconhecimento de potências no território.
Vulnerabilities to illnesses in women living on the border of the Guiana Shield mines
Authors: Mendes Lise Maria Carvalho , Barbosa Nayara Gonçalves , Carbogim Fábio da Costa , Ribeiro Daniele Knopp , Silva Ângela Maria e , Pinheiro Ana Karina Bezerra , Gomes-Sponholz Flávia Azevedo
Published: September 2023

ABSTRACT Objective: To analyze the the vulnerabilities to illnesses in women living on the border of the Guiana Shield mines: Brazil, French Guiana, and Suriname. Method: Descriptive, exploratory field study with a qualitative approach. Data collection took place with 19 women who were living in the mining context, in April 2018. The interviews were recorded and transcribed in full and subsequently analyzed in the light of the concept of vulnerability. Results: Women aged between 30 and 39 years, predominantly black and brown, on a common-law marriage, multiparous, of low level of education, and with work activities related to mining. Three empirical categories emerged: Exposure to environmental and life conditions in the mines: vulnerabilities to illnesses in women; Sexual and reproductive health in the context of borders: the invisibility between legality and illegality; Gendered facets of violence in the mines on the border of the Guiana Shield. Conclusion: Vulnerability is marked in the three dimensions of the concept: in the difficult access to health services, in the discontinued treatment, and in the disparity in health policies within countries, which are important aspects of vulnerability and health conditions.
Eliza: trajetória e estratégias de sobrevivência de uma outsider/within na Matemática
Authors: Menezes Márcia Barbosa de
Published: September 2023

Resumo O presente trabalho pretende dar visibilidade à história de uma mulher negra e pobre que quebrou a tríplice opressão decorrente do seu gênero, sua cor e sua classe social, bem como rompeu os condicionantes das representações sociais que impõem escolhas de carreiras de acordo com o gênero. A análise se apoia nos Estudos Feministas da Ciência e da Tecnologia, bem como em reflexões articuladas às questões econômicas e raciais. Assim, este artigo apresenta a primeira doutora em Matemática da Bahia e uma das primeiras do Brasil, a doutora em Álgebra Eliza Maria Ferreira Veras da Silva – uma mulher que pode ser reconhecida como uma “guerreira negra”. Para tanto, foram realizadas entrevistas semiestruturadas com a professora, as quais foram submetidas ao método de análise do discurso de acordo com a linha francesa. A análise revelou as práticas discursivas que atravessaram o cotidiano da referida matemática, além das formas de resistência utilizadas por ela em um campo acadêmico ainda androcêntrico. Desse modo, apresentar a trajetória de uma mulher negra e pobre que se destacou na área da Matemática tanto contribui para o reconhecimento e valorização da cientista, como revela um referencial importante para as novas gerações de mulheres que almejam ingressar no campo da Matemática.
Estrategias y representaciones según el estilo de pensamiento de estudiantes de secundaria en una tarea de modelización
Authors: Lizano Karen Porras , Castro-Rodríguez Elena , Piñeiro Juan Luis
Published: September 2023

Resumen A través de un enfoque cualitativo, identificamos y caracterizamos las estrategias y representaciones que realizan estudiantes de Educación Secundaria durante la resolución de una tarea de modelización, atendiendo a los estilos de pensamiento de los participantes. Encontramos el empleo del pensamiento analítico en estrategias como el uso de cálculos numéricos, correspondencias y patrones. Las representaciones asociadas a las dos primeras estrategias corresponden a la representación simbólica-numérica. Para la tercera estrategia, uso de patrones, se utilizó el sistema de representación tabular. Solo un grupo utilizó formas de pensamiento visual y analítico en sus estrategias y representaciones. Concluimos que la falta de uso de distintos sistemas de representación en las estrategias de resolución podría deberse a que la formación de los participantes pudo estar focalizada en el uso específico de representaciones simbólico-numéricas y lenguaje natural, incidiendo directamente en el tipo de estilo de pensamiento analítico al resolver la tarea de modelización. Destacamos la relevancia de la incorporación de herramientas más adecuadas en la enseñanza, que incidan en el uso de estrategias y representaciones que estimulen un estilo de pensamiento integrado y el empleo flexible de estos elementos para lograr un equilibrio entre la realidad y las matemáticas.
Práticas e Ações do Formador de Professores que Ensinam Matemática na Orquestração de Discussões Coletivas
Authors: Ferreira Miriam Criez Nobrega , Ribeiro Alessandro Jacques , Ponte João Pedro da
Published: September 2023

Resumo Nesse artigo busca-se investigar as ações e práticas de uma formadora de professores quando orquestrava discussões coletivas em um processo formativo destinado a professores que ensinam Matemática nos Anos Iniciais do Ensino Fundamental, no que refere ao ensino da álgebra. A metodologia é qualitativa-interpretativa e os dados foram recolhidos a partir de vídeos dos momentos de discussões coletivas. A análise dos dados permitiu levantar as ações desenvolvidas pela formadora que foram categorizadas em cinco práticas, o que levou à elaboração de um quadro de referência, associando características específicas das ações do formador a práticas gerais de orquestração de discussões coletivas. O quadro de referência que emerge, ao evidenciar a complexidade do papel do formador traduzido no conjunto de práticas de distinta natureza, pode contribuir tanto para o design e condução de processos formativos, como para a construção de conhecimentos e habilidades necessárias ao formador de professores, objetivando a criação de oportunidades de aprendizagem profissional de professores.
Modo de organização do Ensino Desenvolvimental: o conhecimento revelado por acadêmicas de Pedagogia
Authors: Rosa Josélia Euzébio da , Isidoro Luciane Corrêa do Nascimento
Published: September 2023

Resumo Este estudo analisa o conhecimento de acadêmicas matriculadas na disciplina Fundamentos e Metodologias de Matemática para os anos iniciais do Ensino Fundamental, oferecida no quarto semestre de um curso de Pedagogia. O problema norteador da pesquisa consiste no seguinte: o que revelam as manifestações das acadêmicas de Pedagogia em relação ao conhecimento sobre o modo de organização do Ensino Desenvolvimental, na especificidade do conceito de fração? Para tanto, foi realizado um Experimento Didático Desenvolvimental com duração de um semestre. Tomaram-se como referência de análise as manifestações orais e escritas sobre o modo de organização do ensino de fração. Foram consideradas as compreensões iniciais, o processo percorrido e o estágio final de apreensão. Inicialmente, as acadêmicas compreendiam o conceito de fração e seu ensino empiricamente. Durante o desenvolvimento do Experimento Didático Desenvolvimental, as compreensões iniciais foram desestabilizadas e deram origem a alguns elementos correspondentes ao conhecimento teórico.
Definiendo Familias de Poliedros: un Estudio con Estudiantes de Secundaria
Authors: Quintero Daniela Alexandra Ropero , Badillo Gonzalo Zubieta
Published: September 2023

Resumen Se presenta una investigación de tipo exploratorio y descriptivo en el que se caracteriza cómo es la participación de estudiantes de secundaria en la práctica matemática de definir , sin mayor intervención de un docente, y cómo esta participación los lleva a establecer definiciones con características particulares de diferentes familias de poliedros. El estudio de los datos se realiza a partir de un análisis del discurso de los estudiantes, tomando como base los rasgos comunicativos de la teoría de Sfard. Los principales resultados muestran que el uso de palabras coloquiales y ambiguas es característico del discurso de los estudiantes, y además llevan a cabo diferentes rutinas a la hora de participar en diferentes aspectos de la práctica matemática de definir que los lleva a establecer definiciones, en su gran mayoría, ambiguas, con condiciones necesarias, pero no suficientes. También se pone en evidencia la complejidad de hacer partícipes a los estudiantes en prácticas discursivas y la importancia de seguir realizando investigaciones enfocadas en el proceso de enseñanza y aprendizaje que nos brinden información para intentar mejorar la participación de los estudiantes en diferentes prácticas discursivas.
Acessibilidade arquitetônica e percepção de quedas de idosos no peridomicílio: método misto
Authors: Santos Jéssica de Castro , Arreguy-Sena Cristina , Pinto Paulo Ferreira , Lopes Rafael Oliveira Pitta , Vilela Talyta do Carmo , Brandão Marcos Antônio Gomes
Published: September 2023

RESUMO Objetivo: Descrever conteúdos, estrutura e origem das representações sociais sobre queda apresentadas por pessoas idosas e condições estruturais peridomiciliares que predispõem à queda e relacionar as implicações dessas evidências empíricas na rotina de idosos no contexto arquitetônico. Método: Misto convergente por triangulação. Utilizaram-se as abordagens qualitativa (estrutural, n=195 e processual, n=40 da Teoria das Representações Sociais) e quantitativa (seccional descritiva, n=183). Foram entrevistados idosos no domicílio adscritos à atenção primária, em 2018. Técnicas de análise: categorial-temática, prototípica, estatística e dedutiva segundo Leininger. Resultados: Categorias de análise: 1) Peridomicílio: cenário de queda e 2) Envelhecimento e vulnerabilidade: risco de queda no peridomicílio. Apresentaram-se como características ambientais precursoras de quedas: pisos irregulares, buracos, desníveis e objetos no percurso. Sentimento e comportamentos alocados no possível núcleo central se associam, justificando as quedas e objetivando suas causas. Conclusão: Evidenciou-se a associação entre o ambiente arquitetônico peridomiciliar e as características preditoras do risco de quedas.
Terapia miofuncional orofacial associada ao uso da placa palatina de memória em crianças com Trissomia do 21: estudo de casos
Authors: Ferreira Jéssica Ellen de Almeida , Almeida Bruna Rezende Santos de , Deps Tahyná Duda , Pretti Henrique , Furlan Renata Maria Moreira Moraes
Published: September 2023

RESUMO Indivíduos com Trissomia do 21 podem apresentar hipotonia muscular dos órgãos fonoarticulatórios, língua alargada, posicionada no assoalho oral e protrusa e ausência de selamento labial. A placa palatina de memória é um dispositivo intraoral que, associado à terapia miofuncional, visa à melhora da postura habitual dos lábios e da língua dessas crianças. O objetivo deste trabalho foi apresentar os casos de quatro crianças com Trissomia do 21, do sexo masculino, com média de idade de 6,7 e desvio-padrão de 7,8 meses, que fizeram uso da placa palatina de memória de forma associada à terapia miofuncional. As crianças utilizaram a placa por seis meses, realizaram exercícios baseados na terapia de regulação orofacial e receberam orientações quanto à alimentação e retirada de hábitos orais deletérios. Na primeira sessão e ao final do tratamento, foi realizada a gravação de 5 minutos da face de cada criança em repouso e a análise da postura habitual de língua e de lábios foi realizada por dois pesquisadores independentes. Observou-se maior melhora da postura de língua e de lábios dos participantes que iniciaram o tratamento mais precocemente e que apresentavam as alterações posturais mais severas.
A fluência e compreensão leitora como indicador de desempenho no 3o ano do Ensino Fundamental
Authors: Martins-Reis Vanessa de Oliveira , Pedroso Dâmaris Alves de Araújo , Almeida Letícia Mendes de , Pereira Edlaine Souza , Alves Luciana Mendonça , Celeste Letícia Correa
Published: September 2023

RESUMO Objetivo verificar se a fluência e a compreensão leitora variam ao longo do terceiro ano do Ensino Fundamental, podendo ser utilizados como indicadores de desempenho em leitura. Método trata-se de estudo longitudinal prospectivo. Participaram do estudo 53 crianças, sem distinção de sexo. Foram realizadas quatro avaliações ao longo do ano, utilizando-se do software LEPIC para gravar a leitura feita pelas crianças, registrar os erros de leitura, bem como as respostas às questões referentes à compreensão. Resultados observou-se evolução da fluência de leitura e na compreensão literal ao longo das testagens, mas não na compreensão inferencial. Conclusão a fluência de leitura e a compreensão literal apresentam-se como bons indicadores de desempenho no terceiro ano do Ensino Fundamental.