bluuebunny/crossref_metadata_2025 huggingface dataset:
Evolução clí­nica de ferida provocada por mordida de piranha (Serrassalmidae)
Authors: Saraiva Rocha Moreira Isleide , Haddad Junior Vidal
Published: May 2022

Objetivos: Relato de caso e orientação quanto aos cuidados em uma ferida provocada por mordida de piranha (Serrasalmus maculatus), na região do calcâneo de uma mulher Relato de caso: Mulher de 44 anos mordida por piranha com desenvolvimento de grande úlcera na região do calcâneo com descrição dos cuidados de cicatrização da ferida. Discussão: A úlcera apresentou cicatrização adequada após orientação de manutenção da higienização da ferida com água morna e sabão neutro e aspersão de ácido graxos essências, retirando o uso semanal da placa de hidrocoloide. Conclusão: A placa de hidrocoloide retardou o processo de cicatrização da úlcera, que evoluiu bem após a mudança de medidas de higienização e retirada da placa de hidrocoloide, notando-se tecido viável a partir do décimo quinto dia de curativo.
Medidas aplicadas para aumentar a adesão ao uso de epi's entre profissionais da assistência à saúde
Authors: Karen de Souza Silva Raynara , Freitas de Castro Rwanielly , Laís Muller Deisi , Souza dos Anjos Ednalva , Marães Alves Jordana , Lopes de Souza Erica , Sales de Abreu Adriana , Costa Polares Aglay , Araújo Freire Daniel , Portela de Azevedo Arimatéia
Published: May 2022

O objetivo deste estudo foi mostrar as medidas aplicadas para aumentar a adesão ao uso de EPI´s entre profissionais de um hospital especializado em doenças infectocontagiosas. Tratou-se de uma pesquisa de campo com desenho prospectivo, descritivo e quantitativo de aspecto observacional. Foram realizadas 230 auditorias internas para observações quanto ao uso de EPI´s entre profissionais da assistência e foi possível observar que o maior número de não conformidades (35,6%) foi encontrada entre servidores da clínica médica onde estavam internados pacientes adultos do gênero masculino com algum tipo de imunossupressão e portadores de doenças infectocontagiosas. Antes da realização do inquérito observacional foram realizados vários encontros para orientações sobre biossegurança e comportamento em ambiente hospitalar, na tentativa de melhorar a adesão ao uso de EPI´s, mas este esforço só aumentou a adesão, que antes era de 40% para 78%. Mas com a implantação das medidas corretivas a adesão chegou a 97%. A conscientização ao uso de equipamentos de proteção deve ser uma atitude pessoal, pois cada servidor, sem necessitar de policiamento, punições e pressões externas, deve ter apreço por resguardar sua própria vida.
Atitudes e práticas da equipe de enfermagem frente ao ato transfusional
Authors: Nogueira Freitas Sheilyane , Felipe da Silva e Silva Ícaro , Pimentel Assis Ronny , Rodrigues Pereira Jefta , Farias Viana Marleson , Freitas Batista Nazilda , De Almeida Lopes Ellen , Portela de Azevedo Arimatéia
Published: May 2022

Introdução: A segurança transfusional é uma atividade técnica de orientação bastante abrangente e complexae todos os profissionais, em todos os níveis, devem ser treinados e qualificados a exercer suas funções adequadamentecom o objetivo de minimizar os riscos decorrentes da transfusão, sejam eles imediatos ou tardios. Objetivo: Mostrar as atitudes e práticas da equipe de enfermagem frente ao recente advento do ato transfusional. Metodologia: Trata-sede um estudo do tipo estatística-descritivo, exploratório, retrospectivo e quantitativo. Resultados: Foram entrevistados 70 profissionais da enfermagem, sendo que 50 eram técnicos e 20 eram enfermeiros que trabalhavam em setores diversos, destes, 79% eram do gênero feminino e a maioria (66,2%) só estavam na profissão à cerca de dois anos. Referente as anotações de enfermagem no prontuário, mesmo sendo obrigatorio, foi observado nos registros que durante os 10 primeiros minutos e após a hemotransfusão 36% não verificavam os sinais vitais ou não registraram conforme preconizado pelo Ministério da Saúde e COFEN. Conclusão: Alem das falhas antes e durante o processo, a avaliação prévia, observação de sinais e sintomas pré-existentes, uso de medicamentos, patologia, grau de orientação também foi observado e os mesmos fazem parte das atribuições da equipe de enfermagem nesse ato e devem ser, prioritariamente, observados.
A Systematic Survey of Tourism Recommender System Techniques and Challenges
Authors: Singh Abhimanyu , Kumar Ajay , Sharma Ajay , Katarya Rahul
Published: May 2022

Since the epidemic, there has been a significant drop in the tourism sector, thereby affecting several tourism-dependent nations. However, after COVID-19, people have been wanting to go out to visit places. Since the online era has been trending, people might take help from some websites that use recommender systems to suggest the desired destination which includes basic amenities like the places to visit, hotels, traveling, food, etc. to the user. This paper focuses on some key ideologies that are mostly used in most of the user searches. It discusses the latest machine learning and deep learning techniques used in tourism recommendation and the challenges that are being faced to date by the recommender systems. Recommender systems help to organize a large amount of data available online just by getting the reviews and looking at the previous history of the users. The latest papers have been classified and the papers are analyzed and categorized according to their applications.
Emotion Recognition from Speech using SVM and Random Forest Classifier
Authors: Wincy Pon Annal A. S. , Manonmani R. , Booma C.
Published: May 2022

Speech is the most natural way of people to communicate with one another. It is a vital medium for communicating a person's thoughts, feelings, and mental condition to others. The process of identifying the intellectual state is the recognition of basic emotion through speech. In human life, emotions are incredibly significant. In this project, the emotion is recognized from speech using Support Vector Machine (SVM) and Random Forest classifiers. These are supervised machine learning algorithms used for both classification and regression problems. SVM classifies data by creating N-dimensional hyper planes that divide the input into different categories. The classification is accomplished using a linear and non-linear separation surface in the dataset's input feature. Random Forest is a classifier that combines a number of decision trees on different subsets of a dataset and averages the results to increase the dataset's predicted accuracy. These classifiers are used to categorize emotions like happiness, rage, sadness and neutral for a certain incoming voice signal. Here, the system is trained and developed to recognize emotion in real-time speech. The result demonstrates that the Random Forest classifier is significantly better, when compared to the SVM classifier.
Inte av kärlek allena. Makt i hemarbetets fördelning
Authors: Roman Christine
Published: May 2022

Not from love alone. Power and the division of housework.A recent Swedish study by Ahrne & Roman (1997) shows that married and cohabiting women often feel discontent with their male partner's contribution to housework, while married and cohabiting men commonly feel quite satisfied with the gendered division of housework. This indicates that spouses have different interests and preferences when negotiating the division of housework. The study also indicates that conflicts are frequent in households where the male partner's share of the housework is small or insignificant. The present article starts analysing such conflicts by applying an episodic concept of power, the argument being that men's satisfaction and women's discontent with a gendered division of housework, implies male domination. Bringing the concept of ”gender order” into the analysis, it goes on to maintain that male marital power is best explained by men's greater access to economic and normative resources. Finally, it is argued that high levels of conflicts between spouses, while signs of male domination, also indicate the weakening of male power. Female economic independence, together with declining male authority, has created a situation of relative deprivation for women, i.e. increasing aspirations for equality, in a situation where most women still do the main part of housework. This situation explains not only high levels of conflicts between spouses, but also points to changing gender relations.
Globalisering och internationalisering inom vetenskapen
Authors: Melin Göran
Published: May 2022

Globalization or internationalization in the sciences.The main question in this study is whether we can find empirical evidence of globalization in science or not. Usually the increasing number of co-authorships in the sciences is seen as an indicator of increasing research collaboration, which in turn is seen as part of the globalization-trend. Here, this chain is questioned and the relation and the difference between globalization and internationalization in science is investigated and discussed. A number of studies have shown how the amount of research collaboration is increasing but it is not clear that this is actually leading to globalization in science rather than internationalization. Through a number of empirical results the structure of international research collaboration is described. It is concluded that there may very well be an ongoing globalization-trend but this is hardly evident in empirical studies of research collaboration. What can be seen though is a strengthened internationalization-trend. Globalization seems to be a phenomenon that ought to be used more carefully and studied through both bibliometric and other methods.
Towards a post-patriarchal gender order
Authors: Ertürk Yakin
Published: May 2022

The issues of gender equality and women’s human rights have become major spheres of academic debate, policy and activism in virtually every corner of the globe. Violence against women, a relative latecomer to the international gender agenda, has provided a particularly critical entry point in challenging long standing gender ideologies and taboos as well as the gender biased mainstream human rights framework that kept, until recently, the gender specific abuses women experience outside of public scrutiny.
Forestry and the environment
Authors: Lidskog Rolf , Löfmarck Erik , Uggla Ylva
Published: May 2022

Sweden is often described as an environmental forerunner and one of the most ecologically modernized countries in the world, one where social welfare, economic growth and environmental protection mutually support each other. Examining the case of Swedish forestry, we discuss a number of tensions in this sector that mirror some general tensions in Swedish society and explore how these tensions can be understood as part of a transforming modernity.
Fobbing care work unto ”the other” - what daily press reporting shows
Authors: Torres Sandra
Published: May 2022

Population ageing and international migration are two of the most significant challenges that Sweden is facing today. These – combined with the scholarly debate on the ethics-of-care that notions such as ‘caring democracies’ have re-ignited – raise questions about how media representations of elderly care and migration are shaped. This research note gives insight into how care, and migrant care workers, are regarded in one of the world’s most egalitarian societies. In doing so, it suggests that the intersection between population ageing and international migration is an abundant source of information about societies’ moral compasses.
Non-European migrants often have similar or better health than natives
Authors: Juarez Sol , Rostila Mikael
Published: May 2022

Sweden has experienced a sharp increase in migration flows in the last decades. Projections estimate that the migrant population rate will continue to grow in the near future. Given the centrality of health for the successful engagement of individuals in society, health aspects of migration have emerged as an important area of study. In this research note, we present a brief overview of current knowledge and argue in favour of developing a social determinants perspective on health in future research.
Girls with highly educated parents have less somatic complaints
Authors: Östberg Viveca , Brolin Låftman Sara
Published: May 2022

In Sweden, as in Western countries generally, somatic complaints are common in adolescents. These complaints are clearly connected with gender while the evidence of socioeconomic inequalities is less conclusive. The aim of this study is to analyse the combined relevance of gender and parental education for adolescents’ somatic complaints, using national data with direct information from adolescents and their parents (n=7,393). Among girls, but not among boys, a graded association was found demonstrating less somatic complaints with higher parental education. Stress and coping are discussed as potentially important mechanisms.
Open custody for criminal youth hold back re-offending
Authors: Pettersson Tove
Published: May 2022

In Sweden, youths who commit very serious offences are sentenced to youth custody. This article addresses issues relating to how these children experience being incarcerated, the significance of custodial openness for their everyday institutional lives, and how the experience of more open custodial forms during youth custody sentences is related to re-offending. The empirical data provide support for the significance of more open custodial forms as a means of both providing incarcerated youths with a less destructive environment and increasing the likelihood of more positive re-offending outcomes following their release.
"In Sweden we shake hands" - but are we really
Authors: Andersson Anton , Edling Christofer , Rydgren Jens
Published: May 2022

Motivated by a recent controversy over handshaking, a survey of the personal networks of young Swedes (n=2244) is used to describe greeting practices across social class, gender, immigrant background, and geographic location. While greeting practices in the sample are fairly uniform, there are also important differences. Handshaking is predominantly used by respondents with an immigrant background, men and women distinguish between greetings depending on the gender of the person they are greeting, and greeting practices differ between northern and southern Sweden as well as between rural and urban areas.
Ambivalence in environmental representation
Authors: Uggla Ylva , Boström Magnus
Published: May 2022

In this paper, we examine the phenomenon of representation through the theoretical lens of ambivalence, concentrating on the people involved in representation: representatives . We argue that the theoretical concept of ambivalence can be helpful in analysing and understanding the various tensions environmental and other representatives encounter in their practice . Based on the concepts of “sociological ambivalence”, “ideological dilemma”, and “the organizational centaur”, as well as on insights from social studies of science and sustainability studies, the paper develops a typology of three potential sources of ambivalence: role conflicts, value conflicts, and conflicts between goals and means . In addition, the paper identifies various ways of co- ping with ambivalence, including the construction of meta-norms, organizational and network support, pragmatism, drawing boundaries for reasonable and acceptable actions, rule bending and discursive negotiation . The paper concludes that the concept of ambivalence adds crucial insights to the positions, practices, and challenges of environmental representatives and notes that ambivalence is not only a matter of tensions and conflicts but can be a source of reflexivity, learning, and agency.
Att vistas i arbetsmarknadspolitikens ingenmansland
Authors: Ulmestig Rickard , Panican Alexandru
Published: May 2022

Swedish labour market policy faces major challenges . Sweden has a labour deficit and a very low unemployment rate at the same time as unemployment is high among young people and immigrants . Unemployed in Sweden with high thresholds to enter the labour market are referred to the local labour market policy where the municipalities co-operates, competes and negotiates with the Public Employment Service (PES) . The purpose of this study is to understand the organizational boundaries between PES and the municipalities and how these boundaries affects the local labour market policy in eleven municipalities . We have carried out semi-structured group interviews with managers . The boundaries between PES and the municipalities are vague and require negotiations regarding resources such as the unemployed, different forms of activities offered to the unemployed and economic resources . Clearer boundaries would generate condi- tions that offer unemployed people a strategic organization of the local labour market policy with enhanced co-operation and adaptation to common goals instead of competition and large amount of time spent on negotiating.
world is not a field
Authors: Hylmö Anders
Published: May 2022

In this interview, Michèle Lamont discusses her intellectual trajectory in relation to other sociologists and research fields. The starting point is her relationship to Bourdieu’s field theory in 1980s Paris. She describes how her empirically grounded work developed as a critique of Bourdieu’s oeuvre yet draws heavily on it. A common thread in her work is a focus on social and symbolic boundaries and their relation to evaluation and pluralism, which she has extended from her early studies of class boundaries to empirical and theoretical work, ranging from more general cultural processes of inequality and stigmatization, to knowledge production and evaluation in academia. The importance of cumulative work in sociology and the value of a plurality of criteria of worth across different domains emerge as two central themes in the interview. Finally, Lamont reflects on the current status of the sociology discipline and its role in the public sphere. The interview took place in Lund on 7 March 2018, where Lamont was invited keynote speaker at the Sociologidagarna 2018 conference.
Physiologic And Subjective Health Benefits Of Milmed Among Racehorses In Training
Authors: Archer Trevor
Published: May 2022

Two studies were performed to assess the efficacy of the treated yeast, Milmed, for the alleviation of physiologic health problems, mainly ‘common-cold’ and inflammation symptoms, performance improvements among racehorses in training. In Study I (n=8), Time to reduce pulse to 130 and Pulse rate after 15-mins was estimated both before and after the Milmed treatment whereas in Study II (n=15), levels of improvement on a scale of 1-to-10, as well as on judgements of vigour, general health and performance following several weeks of Milmed administration were assessed. It was found that racehorses presenting poor health showed improved physiologic health responses, Time to reduce pulse to 130 and Pulse rate after 15-mins, following Milmed treatment over several weeks (Study I); furthermore, before-to-after Milmed treatment correlations were significant and positive for both the time taken to reduce pulse to 130 and pulse rate after 15 min. In Study II, Milmed treated racehorses showed improvements in both subjective health assessment and performance. The present findings underline the utility of several weeks of Milmed yeast treatment for the alleviation of mainly respiratory conditions among racehorses under the relatively stressful training and racing season. The probiotic, Milmed, ought to be considered a useful nutraceutical agent for treatment of large mammals.
Gingivectomy As A Treatment Option For Gingival Enlargement Induced By Orthodontic Treatment: A Case Report
Authors: Dhande Sharayu
Published: May 2022

Orthodontic therapy includes the use of orthodontic appliances that favour plaque retention further causing inflammation of the underlying periodontium. This inflammation if left untreated further progresses to gingival enlargement. Bulky interdental papillae in gingival enlargement further act as an area of plaque retention thereby preventing the plaque control and thus worsening the periodontal condition of the patient. Diagnosis of such enlargements is carried out with co-relation of clinic radiographic findings and histo-pathological findings. Although with the advancements in technology, a variety of treatment options like laser excision, chemosurgery, cryotherapy, electrosurgery, sclerotherapy is available nowadays but surgical excision still remains the treatment of choice. This case report focusses on treating the gingival hyperplasia with surgical excision along with stringent follow-up and patient education regarding different plaque control practices to be followed during on-going orthodontic therapy in order to reduce chances of recurrence.
The mimetic of the brain neurotrophic factor GSB-106 has neuroprotective and neuroregenerative effects in experimental ischemic stroke
Authors: Povarnina P. Yu. , Antipova T. A. , Logvinov I. O. , Nikiforov D. M.
Published: May 2022

Background. A dimeric dipeptide mimetic of the brain-derived neurotrophic factor loop 4, bis(N-monosuccinyl-L-seryl-L-lysine) hexamethylenediamide (GSB-106), which activates TrkB, PI3K/AKT, MAPK/ERK and PLC-γ1 was created at the V. V. Zakusov Research Institute of Pharmacology. GSB-106 showed neuroprotective activity in vitro and in vivo at systemic administration.

   Objective. In the present study, we studied the effect of GSB-106 on the brain infarct volume, as well as on neurogenesis and synaptogenesis under conditions of experimental ischemic stroke induced by transient occlusion of the middle cerebral artery in rats, when it was first administered 24 h after ischemia onset.

   Methods. Dipeptide GSB-106 was administered i.p. in a dose of 0.1 mg/kg 24 h after surgery and then once a day, with the end of administration on theday 6 after surgery. On the day 7 brain samples were collected for morphometric and biochemical (Western-blot) analysis.

   Results. It was established that GSB-106 reduced the brain damage volume by 24%, restores impaired neurogenesis and/or gliogenesis (by Ki-67) in the hippocampus and in the striatum and completely restored the reduced immunoreactivity to synaptic markers synaptophysin and PSD-95 in the striatum.

   Conclusions. Thus, the dimeric dipeptide BDNF mimetic GSB-106 exhibits neuroregenerative properties at clinically relevant time window (24 h) in a model of ischemic stroke presumably due to stimulation of neurogenesis (and / or gliogenesis) and synaptogenesis.
Bioequivalence study of fixed-dose combination Losartan + amlodipine + rosuvastatin Sanofi in comparison with coadministered fixed- dose combination Lozap® AM and monocomponent drug Crestor® in healthy subjects
Authors: Khokhlov A. L. , Grebenkin D. Yu. , Faeva E. K. , Kazey V. I. , Khokhlov A. A. , Miroshnikov A. E. , Lebedeva O. V.
Published: May 2022

Introduction. The advantages of fixed-dose combination losartan + amlodipine + rosuvastatin compared to mono-drugs and two-component combinations are to increase the therapeutic efficacy, to reduce the cost of the product and to make the drug easier to take which helps to improve patient adherence to therapy. A bioequivalence study of the three-component fixed-dose combinations Losartan + amlodipine + rosuvastatin Sanofi with coadministered Lozap® AM (Losartan+Amlodipine) and Crestor® (Rosuvastatin) was conducted.

   Aim. The purpose of the bioequivalence trial was a comparative study of the pharmacokinetics and evidence of the bioequivalence of two strengths of fixed-dose combination: 1) Losartan + amlodipine + rosuvastatin Sanofi (tablets, 50 mg + 5 mg + 10 mg) in comparison with coadministrated drugs Lozap® AM (losartan + amlodipine, tablets, 50 mg + 5 mg,) and Crestor® (rosuvastatin, tablets, 10 mg) in fasting healthy volunteers after a single administration; 2) Losartan + amlodipine + rosuvastatin Sanofi (tablets, 100 mg + 5 mg + 20 mg) in comparison with coadministrated drugs Lozap® AM (losartan + amlodipine, tablets, 100 mg + 5 mg) and Crestor® (rosuvastatin, tablets, 20 mg) in fasting healthy volunteers 18–45 years old after a single dose.

   Materials and methods. To prove bioequivalence, an open label, comparative, randomized, crossover four-period clinical trial was conducted for each strengths of fixed-dose combination. The concentrations of losartan, amlodipine and rosuvastatin in blood plasma samples obtained from volunteers were determined by a validated HPLC-MS/MS method. A pharmacokinetic and statistical analysis was performed and confidence intervals (CI) for the pharmacokinetic parameters Сmax, AUC0-72 (for amlodipine) and AUC0-t (for losartan and rosuvastatin) were calculated.      Results and discussion. Based on the results of statistical and pharmacokinetic analysis, it was shown that the studied formulations are bioequivalent in terms of pharmacokinetic parameters of losartan, amlodipine and rosuvastatin. 90 % CI were in the acceptable range for Сmax (of amlodipine), AUC0-72 (of amlodipine) and AUC0-t (of losartan and rosuvastatin). 90 % CI for Сmax of losartan and rosuvastatin were in the acceptable extended calculated range according to the protocol.

   Conclusion. Thus, according to the criteria used in the studies, the three-component fixed-dose combinations Losartan + amlodipine + rosuvastatin Sanofi are proved to be bioequivalent in comparison with coadministered Lozap® AM and Crestor®.
Lösungsmuster zur Produktionssystemplanung/Solution Patterns for Production System Planning – Development of an Integrated Framework Model and Exemplary Application
Authors: Schäfer Louis , Reichardt Ann-Kathrin , Lanza Gisela
Published: May 2022

Eine steigende Variantenvielfalt und Änderungsdynamik bedingen regelmäßige Anpassungen der Produktionssysteme produzierender Unternehmen. Der in diesem Beitrag beschriebene Ansatz eines Lösungsmusters enthält ein schrittweises Vorgehen zur modularen, integrierten Planung von Produktionssystemen. Dabei wird produkt- und produktionsseitiges Wissen in eine einheitlich strukturierte Form überführt und darüber eine Lösung für das Produktionsplanungsproblem abgeleitet.

 

Due to individual products and an increasing number of variants, manufacturing companies need to face regular adjustments of their production systems. This article proposes the concept of solution patterns including a step-by-step procedure for modular, integrated planning of production systems. In this process, knowledge on the product and production sides is transferred into a uniformly structured form and a solution for the production planning problem is derived from this.
Auf dem Weg zum digitalen Zwilling/Investigation and compensation of the discrepancy between simulation models and their twins – On the way to the digital twin
Authors: Fur Shan , Mages Alexander , Riedel Oliver ,   Wortmann. Andreas
Published: May 2022

Simulationsmodelle der virtuellen Inbetriebnahme eignen sich als Grundlage für digitale Zwillinge von Produktionsanlagen, da sie das Verhalten dieser Anlagen abbilden und häufig bereits aus der Entwicklungsphase zur Verfügung stehen. Der Stand der Technik zeigt allerdings, dass zwischen dem Verhalten der Modelle und dem der realen Systeme noch erhebliche Diskrepanzen bestehen. In diesem Beitrag wird eine Methodik zur Kompensation von Diskrepanzen exemplarisch an einer Fräsanlage untersucht.

 

The simulation models of virtual commissioning are suitable as a basis for digital twins of production systems, as they represent the behavior of these systems and often already are available from the development phase. However, the state-of-the-art shows that there are considerable discrepancies between the behavior of the models and that of the real systems. In this paper, a methodology for the compensation of discrepancies, using a milling plant as an example is investigated.
Editorial
Authors: Viggiani Bicudo Maria Aparecida , Kalinke Marco Aurélio , Ferreira Mocrosky Luciane , Melli Tambarussi Carla
Published: May 2022

Este número temático da Revista Paradigma elege a Pesquisa Qualitativa em Educação Matemática como o núcleo de convergência de ensaios e de investigações - objeto dos vinte artigos que publica.
Hermenéutica en la investigación cualitativa fenomenológica: un ejemplo situado en Educación Matemática
Authors: Wichnoski Paulo , Klüber Tiago Emanuel
Published: May 2022

Situado en el campo de la Filosofía de la Educación Matemática, este artículo se centra en el modo fenomenológico-hermenéutico de investigar y su objetivo es exponer una posibilidad de llevar la hermenéutica a la investigación cualitativa que asume una postura fenomenológica en la Educación Matemática. Acudimos a la investigación doctoral del primer autor, guiada por el segundo, para ejemplificar cómo se produjo el injerto hermenéutico en el movimiento de comprensión del fenómeno cuestionado y algunas interpretaciones que de él emergieron. En consecuencia, pretendemos contribuir a que otras investigaciones se construyan con la misma perspectiva, utilizando la hermenéutica para la interpretación de los datos, especialmente aquellos que se enmarcan en el ámbito de la Educación Matemática.
El software IRaMuTeQ em investigación cualitativa: uma revisión sistemática em el ámbito de la educación matemática
Authors: Rodrigues Mendes Luiz Otavio , Proença Marcelo Carlos de , Pereira Ana Lucia
Published: May 2022

El uso de software estadístico en el proceso de análisis cualitativo ha sido cada vez más prometedor, a medida que aumenta el volumen de datos. Una posibilidad es IRaMuTeQ. Por lo tanto, este estudio tiene como objetivo analizar el uso de este software en la investigación cualitativa en el campo de la Educación Matemática. Mediante el desarrollo de una revisión sistemática, se consideraron de interés para la investigación 27 trabajos. A partir de un análisis cualitativo, fue posible observar que los análisis desarrollados por IRaMuTeQ, tales como Similitud, Clasificación Jerárquica Descendente, Análisis Factorial de Correspondencia, Prototípico y nubes de palabras, han sido utilizados con técnicas/metodologías relevantes en el campo de la Educación Matemática, como Contenido. Análisis, Análisis Textual Discursivo y con la teoría de las Representaciones Sociales. Sin embargo, encontramos estudios que no cumplieron con los parámetros estadísticos mínimos y no desarrollaron un análisis cualitativo de las técnicas cuantitativas realizadas por el software, mostrando así poco aprovechamiento del potencial de IRaMuTeQ.
Una Propuesta para la Creación de una Plataforma Asistida por la Inteligencia Artificial para la Construcción de Objetos de Aprendizaje de Matemática
Authors: Zatti Evandro Alberto , Balbino Renata , Mattos Silvana Gogolla de , Kalinke Marco Aurélio
Published: May 2022

Este artículo presenta un proyecto que considera la creación de una plataforma para construcción de Objetos de Aprendizaje (OA) de Matemática, que hace uso de programación intuitiva y es asistida por la Inteligencia Artificial (IA). Para contestar a la pregunta orientadora “¿qué caminos seguir para crear esta plataforma?” se propone la posibilidad de adoptar tres enfoques, que contemplan el desarrollo, la búsqueda de entendimientos sobre ambientes de programación intuitiva, y la propuesta de concepción de la interfaz de la plataforma, denominada GenIA. Estos enfoques son objeto de investigaciones de doctorado en curso en universidades federales del sur de Brasil. Tales investigaciones adoptan como metodología la Investigación en Diseño Educativo, según la cual se desarrollan las fases preliminar, de prototipado y de evaluación. Los resultados obtenidos hasta el momento indican la posibilidad de contribuir con la difusión de la práctica de construcción de OA, así como a perspectivas sobre el uso de IA y de programación intuitiva, que tengan en cuenta las necesidades de los involucrados en los procesos de enseñanza y aprendizaje de Matemáticas. Además, pueden promover la aproximación de diferentes áreas, como Educación Matemática e Informática, a través de temas de estudio que incluyen Ergonomía y Design de Interacción.
Interpretaciones sobre los momentos de generación de ideas en actividades de Modelación Matemática derivadas del uso de la herramienta de análisis temporal
Authors: Pasquale Junior Marlon Luiz Dal , Vertuan Rodolfo Eduardo
Published: May 2022

Con el fin de encontrar una herramienta para identificar y organizar los momentos de generación de ideas para los estudiantes cuando se involucran y realizan actividades de Modelación Matemática, desde la perspectiva de la Educación Matemática, conocemos el Análisis Temporal de Alan H. Schoenfeld. En este artículo, sin embargo, buscamos investigar qué interpretaciones resultan del uso de la herramienta de análisis temporal en el desarrollo de actividades de Modelación Matemática con respecto a los momentos de generación de ideas en Modelación. Para discutir la generación de ideas, tomamos la perspectiva sistémica de la creatividad de Csikszentmihalyi. Los tiempos de las actividades desarrolladas y la lectura posibilitada por los análisis horizontales y verticales de estos encuadres, permitieron inferir que en actividades de más de sesenta minutos, los momentos de generación de ideas se manifiestan principalmente en los primeros veinte minutos. Además, el interés por el tema investigado, la implicación y los conocimientos previos de los alumnos influyen en la cantidad de ideas planteadas y el tiempo dedicado a discutir estas ideas.
Conocimiento Especializado de Potenciación movilizado por docentes a partir de una Investigación Basada en Design
Authors: Rizek Elias Henrique , Silva Martelozo Daniele Peres da , Viel Gereti Laís Cristina , Fátima Lopes Susana de
Published: May 2022

En este artículo presentamos los resultados de la fase inicial de una investigación desarrollada por un grupo de estudio e investigación en el ámbito de una Maestría Profesional (MP), basada y enmarcada en la metodología de la Investigación Basada en el Diseño (IBD). Específicamente, en este trabajo, nos enfocamos en los primeros cuatro encuentros dedicados a discusiones teóricas sobre el contenido matemático de la potenciación, con el objetivo de analizar el Conocimiento Especializado del Contenido (SCK) movilizado/refinado por los docentes mientras trabajan colaborativamente en la etapa de preparación de un IBD y, luego, elaborar una conjetura sobre la dimensión del contenido de potenciación para el 6° año de primaria. A partir de los datos producidos en las grabaciones de las reuniones del grupo de estudio y investigación, concluimos que la experiencia brindada por el IBD favoreció la producción de conocimiento para los docentes, ya que lograron movilizar/refinar su SCK respecto a la potenciación cuando se permitieron entender la potenciación como una representación y cuando pudieron ampliar su perspectiva sobre el tema matemático, en la dirección de establecer relaciones entre la aritmética (trabajada en los primeros años) y el álgebra, a través del pensamiento algebraico, proporcionando un entorno favorable para nuevas reflexiones y aprendiendo sobre pensamiento algebraico y la potenciación.
Conocimiento del profesor de Matemática y educación financiera: un panorama de las investigaciones realizadas en el período 2010-2020
Authors: Batista Lucas Athadeu Silva , Crisostomo Edson , Macêdo Josué Antunes de
Published: May 2022

Este estudio tuvo por objetivo comprender la investigación brasileña, centrada en los conocimientos de profesores de matemática y sus conexiones con la Educación Financiera. Por lo tanto, se realizó una investigación, de tipo Estado del conocimiento, de los trabajos publicados en Brasil, en el período de 2010 a 2020, que se refieren a los conocimientos del profesor de Matemática. Las búsquedas fueron efectuadas en revistas de Qualis A1 y A2, en el Catálogo de Tesis y disertaciones de la Coordinación de la Formación del Personal de Nivel Superior (CAPES) y en la Biblioteca Digital brasileña de Tesis y Disertaciones (BDTD). Los resultados revelan la escasez de investigaciones referentes a la articulación de los conocimientos de los profesores de Matemática con la Educación Financiera. Se encontraron sólo dos trabajos que presentan tanto el saber temático del profesor de Matemática como el de Educación Financiera, y uno de ellos propone investigar la movilización del saber pedagógico y matemático de un grupo de profesores del 5º año de los Años Iniciales de la Enseñanza Fundamental sobre Educación Financiera. El otro trabajo considera que las acciones formativas interfieren positivamente en estimular el desarrollo de conocimientos y ayudan a los docentes en sus decisiones al abordar el tema de la Educación Financiera en sus clases.
GRATITUDE AND WELL-BEING DURING COVID-19 PANDEMIC IN MALAYSIA: MEDIATING ROLE OF RESILIENCE
Authors: Khodabakhsh Sonia , Ooi Chia Sin
Published: May 2022

The outbreak of the COVID-19 pandemic has severely disrupted the well-being and mental health of people around the world. Positive emotions like resilience and gratitude have been proven to be able to improve one’s well-being. The theory of Broaden-and-build was used to explore resilience’s mediating role in the relationship between gratitude and well-being among Malaysian adults during the COVID-19 pandemic. The data of 530 participants aged 18 to 35 years was analyzed using SmartPLS. The results showed that grateful and more resilient participants showed a better well-being, and the effects were further moderated by financial income and marital status. The results also supported the hypothetical statistical mediation model in which resilience is the statistical mediator for the association between gratitude and well-being. The results highlighted the significant influence of gratitude and resilience on Malaysian adults’ well-being and explained the role of gratitude in boosting their well-being. It is suggested that policymakers and mental health professionals should consider promoting gratitude and resilience to increase positive emotions and well-being in young adults and help society to be prepared for challenging times of adversity in the future.
Этиологические факторы нарушения репродуктивной функции у мужчин (по данным клиники «Мать и дитя»)
Authors: Мякишева Ю.В. , Сказкина О.Я. , Федосейкина И.В. , Щелочков А.М. , Шурыгина О.В. , Тугушев М.Т.
Published: May 2022

Актуальность: Проблема мужского бесплодия занимает одно из ведущих мест в современной медицине. Цель исследования – выявление этиологических факторов, влияющих на мужское репродуктивное здоровье, их вклада в развитие мужского бесплодия и оценка репродуктивного потенциала мужчин, проживающих в районах городского образования Самара и Самарской области, с учётом различного уровня антропотехногенной нагрузки. Методы: Проведен ретроспективный анализ 340 спермограмм и 100 медицинских карт пациентов клиники «Мать и дитя» (г.о. Самара, Россия). При изучении спермограмм анализировали такие показатели, как концентрация сперматозоидов, количество живых форм, их подвижность, морфологические отклонения от нормы, Mar-тест. Результаты: Отмечается отрицательное влияние ин-фекций урогенитального тракта, высокого уровня антропотехногенной нагрузки, сопутствующих заболеваний, избыточной массы тела и малоподвижного образа жизни на показатели морфологических и количественных критериев сперматозоидов. Заключение: Очевидна необходимость индивидуализированного подхода в изучении этиологических факторов мужской инфертильности.
Технология ROSI: микроинъекция гаплоидных круглых сперматид
Authors: Магауия А.Н. , Жумадил Х.Б. , Бекбосынова Г.Р. , Бегайдарова А.Б.
Published: May 2022

Актуальность: У большинства мужчин с азооспермией при Micro-TESE отсутствуют зрелые сперматозоиды, но обнаруживаются гаплоидные круглые сперматиды, которые можно ввести в ооциты, что приводит к оплодотворению.

Цель: анализ научных работ по методу инъекции ооцитов круглыми сперматидами (Round spermatid injection, ROSI) и развития технологии ROSI.

Методы: Научные статьи отбирались путем поиска по ключевым словам в медицинских базах данных PUBMED, MEDLINE и EMBASE. Поиск осуществлялся по терминам “round spermatid injection” и “ROSI”.

Результаты: В статье рассмотрены несколько как успешных, так и нерезультативных исследований с применением технологии ROSI.

Заключение: Наш обзор позволяет сделать заключение, что технология ROSI является последним шансом для мужчин с необструктивной азооспермией, которые хотят использовать свой генетический материал, чтобы произвести потомство.
Trans Theory and Intimate Partner Violence
Authors: Davis Charlie
Published: May 2022

The limitations of feminist frameworks to conceptualize trans people’s unique experiences have led to an emerging trans theoretical framework, seeking to complicate theoretical understandings of gender to be inclusive of trans and nonbinary identities. In this paper, I provide support to this emerging theoretical framework by first illustrating how Black, Indigenous and queer feminist frameworks conceptualize engendered violence, highlighting the theoretical limitations when applied to trans experiences of intimate partner violence (IPV). Subsequently, I re-examine trans IPV through a trans theory lens, demonstrating how complexities of trans identities and embodiment of gender necessitates a more comprehensive theoretical understanding of gender, and how trans theory can provide nuanced understanding.
A Sufi tale from Alf Layla wa-layla (the Arabian nights)
Authors: Brenes Manuel , Guzmán Roberto
Published: May 2022

Alf Layla wa-layla (the Arabian Nights) is a major source for the study of the popular knowledge and practices of everyday life in Medieval Islam. Islamic religiosity and the mystic experience (Sufism) of personal approach to God are common themes in Alf Layla wa-layla. This article studies in detail the story of Abu l-Hasan with Abu Ja‘far the leper, a story which is very rich in mystical values, placing Sufism and personal approach and knowledge of God in its historical context. The social treatment of lepers in Medieval Islam is studied in order to obtain a general and complete view of the history and the society of Medieval Islam.
MACROPRUDENTIAL POLICY, HOUSE PRICE FLUCTUATION AND HOUSEHOLD CONSUMPTION
Authors: Qi Yang , Qin Haixiao , Liu Peide , Liu Jianxu , Raslanas Saulius , Banaitienė Nerija
Published: May 2022

House purchasing has become an important asset allocation choice for most families in China. House price fluctuation is also one of the important factors that leads to systematic risks in the financial market, which might cause economic crises and then reduce consumption. Since China formally established the dual-pillar management framework of macroprudential policy in 2019, it has played a crucial role in maintaining the stability of house prices. This article employs the mediating effect model to comb the internal mechanism of the interaction between macroprudential policies, housing prices, and household consumption and test by the panel data of 30 provinces and cities in China from 2004 to 2019. Experience implies that macroprudential policy can not only stabilize consumption demand directly and effectively, but also affect consumption indirectly through the cross of the real estate market and the credit market. Further research has also found that macroprudential policies may fail between regions with higher GDP and high-income groups. This finding will contribute to research on the relationship between macroprudential policies and real economics. In addition, it would be helpful in making policies to increase consumption.
EMPRESS. VII. Ionizing Spectrum Shapes of Extremely Metal-poor Galaxies: Uncovering the Origins of Strong He ii and the Impact on Cosmic Reionization
Authors: Umeda Hiroya , Ouchi Masami , Nakajima Kimihiko , Isobe Yuki , Aoyama Shohei , Harikane Yuichi , Ono Yoshiaki , Matsumoto Akinori
Published: May 2022

Strong high-ionization lines such as He ii of young galaxies are puzzling at high and low redshift. Although recent studies suggest the existence of nonthermal sources, whether their ionizing spectra can consistently explain multiple major emission lines remains a question. Here we derive the general shapes of the ionizing spectra for three local extremely metal-poor galaxies (EMPGs) that show strong He ii
λ4686. We parameterize the ionizing spectra composed of a blackbody and power-law radiation mimicking various stellar and nonthermal sources. We use photoionization models for nebulae and determine seven parameters of the ionizing spectra and nebulae by Markov Chain Monte Carlo methods, carefully avoiding systematics of abundance ratios. We obtain the general shapes of ionizing spectra explaining ∼10 major emission lines within observational errors with smooth connections from observed X-ray and optical continua. We find that an ionizing spectrum of one EMPG has a blackbody-dominated shape, while the others have convex downward shapes at >13.6 eV, which indicate a diversity of the ionizing spectrum shapes. We confirm that the convex downward shapes are fundamentally different from ordinary stellar spectrum shapes, and that the spectrum shapes of these galaxies are generally explained by the combination of the stellar and ultraluminous X-ray sources. Comparisons with stellar synthesis models suggest that the diversity of the spectrum shapes arises from differences in the stellar age. If galaxies at z ≳ 6 are similar to the EMPGs, high-energy (>54.4 eV) photons of the nonstellar sources negligibly contribute to cosmic reionization due to relatively weak radiation.
Kiloparsec-scale Imaging of the CO(1-0)-traced Cold Molecular Gas Reservoir in a z ∼ 3.4 Submillimeter Galaxy
Authors: Frias Castillo Marta , Rybak Matus , Hodge Jacqueline , van der Werf Paul , Riechers Dominik A. , Vieira Daniel , Calistro Rivera Gabriela , Martínez-Ramírez Laura N. , Walter Fabian , de Blok Erwin , Narayanan Desika , Wagg Jeff
Published: May 2022

We present a high-resolution study of the cold molecular gas as traced by CO(1-0) in the unlensed z ∼ 3.4 submillimeter galaxy SMM J13120+4242, using multiconfiguration observations with the Karl G. Jansky Very Large Array (JVLA). The gas reservoir, imaged on 0.″39 (∼3 kpc) scales, is resolved into two components separated by ∼11 kpc with a total extent of 16 ± 3 kpc. Despite the large spatial extent of the reservoir, the observations show a CO(1-0) FWHM linewidth of only 267 ± 64 km s−1. We derive a revised line luminosity of

L

CO
(
1
−
0
)

′

= (10 ± 3) × 1010 K km s−1 pc2 and a molecular gas mass of M
gas = (13 ± 3)× 1010 (α
CO/1) M
⊙. Despite the presence of a velocity gradient (consistent with previous resolved CO(6-5) imaging), the CO(1-0) imaging shows evidence for significant turbulent motions that are preventing the gas from fully settling into a disk. The system likely represents a merger in an advanced stage. Although the dynamical mass is highly uncertain, we use it to place an upper limit on the CO-to-H2 mass conversion factor α
CO of 1.4. We revisit the SED fitting, finding that this galaxy lies on the very massive end of the main sequence at z = 3.4. Based on the low gas fraction, short gas depletion time, and evidence for a central AGN, we propose that SMM J13120 is in a rapid transitional phase between a merger-driven starburst and an unobscured quasar. The case of SMM J13120 highlights how mergers may drive important physical changes in galaxies without pushing them off the main sequence.