bluuebunny/crossref_metadata_2025_split huggingface dataset:
Propostas de Atividades com Tabelas em Livros Didáticos de Matemática dos Anos Iniciais do Ensino Fundamental do Brasil e do Quebec
Authors: Evangelista da Silva Maria Betania , Guimarães Gilda , Oliveira Izabella 
Published: April 2021

ResumoO livro didático é uma das principais fontes de consulta dos professores no ensino de estatística. Esse artigo analisa atividades envolvendo tabelas apresentadas nos livros didáticos de Matemática, dos anos iniciais do Ensino Fundamental do Brasil e do Quebec/CA. Nossas análises se fundamentaram em seis categorias: tipo de representação (quadro, banco de dados ou tabela); função da tabela; habilidade explorada; tipo de tabela (simples ou dupla entrada); tipo de variável; representação dos elementos fundamentais da tabela. Os resultados revelam que, em todos os anos de escolarização, podemos encontrar os três tipos de representação, sendo a maior frequência de tabelas em ambos os lugares de publicação. Além disso, a maioria delas é utilizada como objeto de estudo, indicando uma mudança recente de foco nos livros brasileiros, que priorizavam atividades na quais as tabelas eram pretexto para outros conceitos serem abordados. Observamos, entretanto, uma ênfase em interpretar e completar tabelas já estruturadas. Infelizmente, muitas tabelas não apresentam a fonte, principalmente nos livros do Quebec. A ausência de contextos reais e significativos não contribui efetivamente para a aprendizagem Estatística pelos alunos.
Palavras-chave: Livros Didáticos. Ensino de Estatística. Tabelas. Anos Iniciais
AbstractTextbooks are one of the main sources of consultation for teaching statistics. This article analyzes activities involving tables presented in Primary School Mathematics textbooks from Brazil and from Quebec - CA. Our analysis were based on six categories: type of representation (rectangular configuration, database or table); table function; explored skill; table type (single or double entry); type of variable; representation of the fundamental elements of the table. The results show that in all years of schooling we can find the three types of representation, with the highest frequency of tables in both places of publication. Most of them are used as an object of study, indicating a recent change of focus in Brazilian books that prioritized activities in which tables were a pretext for other concepts to be addressed. However, we still observe an emphasis on interpreting and completing tables already structured. Unfortunately, many tables do not present their source, especially in Quebec textbooks. The absence of real data and significant contexts effectively does not contribute to the students' significant learning of Statistics.
Keyword: Textbook. Teaching of Statistics. Tables. Primary School
Jogo de Palitos: Conhecimentos de Estudantes do 5º Ano Sobre Probabilidade em Situação de Jogo
Authors: Silva Carlos Henrique Nunes da , Itatiane Borges Lima  , Freire Ingrid Chirstine da Silva 
Published: April 2021

Resumo O presente artigo surgiu a partir do interesse nos jogos que envolvesse Matemática durante o estágio escolar em um projeto chamado Jovens Matemáticos, no qual tinha como propósito a utilização de jogos direcionados a aprendizagem da Matemática. Nesse estudo, optou-se por investigar o uso do jogo de palitos como um suporte para aprendizagem do conteúdo de probabilidade no 5º ano do ensino Fundamental I. Objetivamos analisar a influência do jogo de palitos na compreensão dos estudantes do 5º ano sobre o conteúdo de probabilidade, buscando identificar sua influência, em particular, no que se refere à aleatoriedade, ao espaço amostral e ao cálculo probabilístico. Foi realizado um pré-teste com 18 alunos do 5º Ano para analisar os conhecimentos prévios dos alunos e após a familiarização do jogo realizamos o pós-teste para saber a influência do jogo. Conclui-se que de modo geral o jogo pode ser um instrumento para compreensão do conteúdo em questão nas abordagens do raciocínio probabilísticos, identificação do espaço amostral e estimativas de eventos aleatórios.
Palavras-chave: Probabilidade. Jogo dos Palitos. Situação de Jogo.
Resume:The present article arose from the interest in games that involved Mathematics during the school stage in a project called Young Mathematicians, whose purpose was the use of games aimed at learning Mathematics. In this study, we chose to investigate the use of matchstick as a support for learning Probability content in the 5th grade of elementary school I. We aimed to analyze the influence of matchstick on the understanding of 5th grade students on the content of Probability, seeking to identify its influence, particularly with regard to randomness, sample space and probabilistic calculation. A pre-test was conducted with 18 5th graders to analyze the students' previous knowledge and after the familiarization of the game we performed the post-test to know the influence of the game. It is concluded that in general the game can be an instrument for understanding the content of Probability in approaches to probabilistic reasoning, sample space identification and random event estimates.
Keyword: Probability; Matchsticks; Gambling situation.
To find vitamin D status in in-patients coming to DM WIMS hospital, Wayanad
Authors: Thomas Vijatha , K Vinisha , Mithrason Arun T 
Published: April 2021

: Vitamin D deficiency is a serious health problem and is widespread in individuals irrespective of age, gender, race and geography. Despite being studied so much its deficiency is still missed by clinicians. This study was done to find vitamin D status of patients attending DM WIMS, Wayanad, Kerala, irrespective of the department they attended.A retrospective cross-sectional study was done and the data for 1 year was extracted from HIS (hospital information system) and reviewed. The subjects were divided into three groups: Group A: level &#60;20 ng/ml (vitamin D deficient), Group B: level = 21-29 ng/mL (vitamin D insufficient) and Group C: level between 30-100 (vitamin D sufficient). Out of total 498 subjects in our study, 27% were males and 73% were females. Vitamin D deficiency was seen in 57.4% males and 72.5% females. The most affected age groups were 20 -40 years (28.7%) and 41-60 years (28.3%).In the present study vitamin D deficiency was found to be more in females compared to males. Also the most affected age groups were 20-40 years. Routine screening for vitamin deficiency and its supplementation starting at all ages should be recommended to improve vitamin D status.
PERKEMBANGAN PEMAHAMAN SISWA PADA MATERI OPERASI BILANGAN BULAT DALAM SETTING PEMBELAJARAN MATEMATIKA REALISTIK BERBANTUAN MEDIA “MOGER” DI KELAS IV
Authors: Jazuli Ahmad 
Published: April 2021

Abstrak Penelitian ini bertujuan Mendeskripsikan Perkembangan Pemahaman Siswa pada Operasi Hitung Bilangan Bulat dalam setting Pembelajaran Matematika Realistik berbantuan media “Mobil Bergerak” di kelas IV.Penelitian ini deskriptif kualitatif dan kuantitatif, penelitian yang dilakukan dengan menjelaskan atau menggambarkan variabel masa lalu dan sekarang yang bertujuan untuk membuat deskripsi, gambaran atau lukisan secara sistematis, faktual dan akurat mengenai fakta-fakta serta hubungan antara fenomena yang diselidiki. Hasil dari Tes pertama, tes kedua, dan tes ketiga siswa mengalami peningkatan ditunjukkan dengan nilai tertinggi dari 45 ke 77,5 dan ke 100, Nilai terendah dari 10 ke 25 dan 45, nilai rata-rata dari 19,17 ke 54,06 dan 74,90. Tingkat pemahaman rata-rata kelas dari sangat rendah ke sedang dan tinggi.Hasil perbandingan dari tes pertama, tes kedua, dan tes ketiga menunjukkan perubahan yang lebih baik atau maju dengan begitu dapat disimpulkan siswa mengalami perkembangan pemahannya dalam operasi hitung bilangan bulat melalui setting pembelajaran matematika realistik berbantuan media “MOGER”.Berdasarkan hasil data, dapat disimpulkan siswa mengalami perkembangan pemahaman dalam operasi hitung bilangan bulat dengan menggunakan setting pembelajaran matematika realistik berbantuan media “MOGER” di kelas IV. Kata kunci: Pemahaman Siswa pada Operasi Bilangan Bulat, Pembelajaran MatematikaRealistik, Media “MOGER”. ABSTRACTThis study aims to describe the development of understanding of students on Operation Count Integer in setting medium-aided Realistic Mathematics Education "Moving Cars" in the fourth grade.This research is descriptive qualitative and quantitative research conducted to explain or illustrate the past and present variables which aims to create a description, picture or painting in a systematic, factual and accurate information on the facts and the relationship between the phenomenon investigated. Results of the first test, a second test and third test students have shown improvement with the highest score of 45 to 77.5 and to 100, the lowest value of 10 to 25 and 45, the average value of 19.17 to 54.06 and 74.90. Level of understanding of the average grade from very low to medium and high. The comparison of the first test, a second test and third test showed changes for the better or forward so we can conclude pemahannya students progressing in integer arithmetic operations by setting realistic mathematics-assisted learning media "Moger".Based on the results of the data, it can be concluded the students to experience growth in the understanding of integer arithmetic operations using mathematical learning setting realistic media-assisted "Moger" in the fourth grade. Keywords: Students Understanding on Operations Integer, Realistic Mathematics Education, Media "Moger".
PENGGUNAAN BAHASA MADURA YANG DIGUNAKAN OLEH ORANG TUA TERHADAP KARAKTER SISWA DI SDN CANDI I
Authors: Ahmad Wahid 
Published: April 2021

ABSTRAKSiswa Kelas IV, V, dan VI SDN Candi I tidak selalu menggunakan bahasa madura yang halusEngghi Enten dalam berkomunikasisebagaimana diajarkan orang tuanya. Sedangkan karakternya masih tergolong baik dan bagus.Penelitian ini bertujuan untuk mengetahui hubungan bahasa Madura yang digunakan oleh orang tua terhadap karakter siswa Kelas IV, V, dan VIdi SDN Candi I dengan menggunakan teknik wawancara, observasi, dokumentasi, rekaman dan triangulasi.Adapun instrument yang digunakan adalah pedoman wawancara, lembar observasi, dan dokumentasi.Triangulasi yang digunakan pada penelitian ini adalah Triangulasi Waktu (periode I 10-14 Juli 2020 dan periode II 10-14 Juli 2020), Sumber dan Teknik.Sumber utama pada penelitian ini dalah Siswa Kelas IV, V dan VI, dan sumber keduanya adalah orang tua dan guru kelas.Teknik yang digunakan saat triangulasi adalah wawancara, observasi dokumentasi dan rekaman. Berdasarkan data yang diperoleh diketahui bahwa hubungan bahasa yang digunakan oleh orang tua dengan karakter toleransi, bersahabat atau komunikatif, dan peduli sosial pada Kelas IV, V, dan VI sangat berpengaruh terutama pada karakter bersahabat atau komunikatif. Hasil penelitian ini menunjukkan semakin baik bahasa yang digunakan oleh orang tua maka karakter siswa akan semakin baik pula terutama pada karakter bersahabat atau komunikatif. Kata Kunci: Bahasa Madura, Orang Tua, KarakterABSTRACTThe grade IV, V, and VI students in SDN Candi 1 do not always use the good Madurese (Engghi-Enten) in communicating as taught as their parents. Meanwhile, the characters of the student are still good. This research aims to determine the relationship between the Madurese used by parents to the character of students in IV, V, and VI Grades at SDN Candi 1 with using interviews, observation, documentation, recording, and triangulation techniques. The instruments used is interview guides, observation sheets, and documentation. The triangulation used in this study is the Triangulation of Time (first-period 30 June to 01 July 2020 and the second period 10 to 14 July 2020), Resources, and Techniques. The main objects in this study were students in IV, V, and VI grades, and the second objects were parents and class teachers. The triangulation techniques were interviews, observation documentation, and recordings. Based on the data obtained, it shows that the relationship between the language used by parents with the characters of tolerance, friendly or communicative, and social care in IV, V, and VI grades are significant especially in communicative and friendly character. This research shows the better the language used by parents, the better the student's character will be, especially in friendly or communicative characters. Keywords : Madurese (Language of Madura), Parents, Character
The Impact of Personality Traits on Perceived Investment Performance: The Moderating Role of Social Interaction
Authors: Nareswari Ninditya , Rahmani Citra Wanodya , Negoro Nugroho Priyo 
Published: April 2021

Each investor has an investment plan to reach their investment objectives. Perceived investment performance was affected by a high level of the psychological aspect. The purpose of this study was to test the effect of the Big Five personality traits on the perception of investment performance. This study also tests the moderating role of social interaction. PLS-SEM was used to test the hypotheses. Used individual stock investors in Indonesia, the findings showed that openness personality had a negative effect on perceived investment performance. Otherwise, conscientiousness, extraversion, agreeableness, and neuroticism had a positive impact on perceived investment performance. The results also show that social interaction moderates the relationship between conscientiousness, agreeableness, and perceived investment performance. This result shows that information selection and investment knowledge is important when allocating asset to achieve investment objectives.
Anesthesia Management in VP Shunt Surgery in Neonates with Hypoplastic Left Heart Syndrome (HLHS) and Dandy Walker Syndrome
Authors: Purwoko Purwoko , Muttaqin Fandi Ahmad 
Published: April 2021

<p><strong>Introduction:</strong> Hypoplastic left heart syndrome (HLHS) is defined as the incomplete development of the left heart structures, including the mitral valve, left ventricle, aortic valve, and aortic arch. The clinical presentation of HLHS depends on the patency of the ductus arteriosus and the degree of restriction of the atrial septum. Common clinical manifestations include cyanosis, respiratory distress, and hemodynamic instability within hours of delivery. Delays in diagnosis and delay in intervention will increase the morbidity of neonates with HLHS.</p><p><strong>Purpose:</strong> To understand the mechanism of HLHS along with the principles of anesthesia in neuroaesthetics procedures in pediatrics in order to obtain a good outcome.</p><p><strong>Case Illustration:</strong> A 9-day old baby girl, weight 2522 grams with HLHS (aortic atresia) with patent ductus arteriosus (PDA), type II atrial septal defect (ASD) with a left to right shunt, and dandy walker syndrome. From the physical examination, the patient's condition is stable, with GCS E4V5M6, pulse 130-135 beats/minute, breath rate 48x / minute, and SpO2 94-98%. The patient's head was enlarged from birth, no heart sounds were found, regular I-II heart sounds. Blood laboratory tests showed a total bilirubin value of 11.7 mg / dL, direct bilirubin 0.64 mg / dL, indirect bilirubin 10.43 mg / dL, hemoglobin 20.1 g%, hematocrit 55%, with leukocytes 19.9x103 / L, platelets 216 x 103 / L, serum Na 122 mmol / L, K 7.8 mmol / L, Cl 101 mmol / L.</p><p><strong>Discussion:</strong> The anesthetic approach in HLHS is to maintain preoperative hemodynamic stability by maintaining heart rate, preload, and PGE1, balancing systemic vascular resistance and pulmonary vascular resistance, preventing too high PaO2, and administering inotropic agents to increase cardiac output and keep the patent ductus arteriosus open. The balance of systemic and pulmonary blood flow is a key principle in the management of HLHS anesthesia. </p><p><strong>Conclusion:</strong> The main goal of HLHS anesthesia is to minimize hemodynamic changes to prevent compromised hemodynamics in both circulations and maintaining stability is essential in preventing morbidity, complications, and increasing good outcomes in surgery..</p><p> </p><p> </p>
Protocol to generate DNA aptamer coated particles and utilization for affinity-based screening with particle display
Authors: Yang Qin , Bashir Ali , Wang Jinpeng , Hoyer Stephan , Chou Wenchuan , McLean Cory , Davis Geoff , Gong Qiang , Armstrong Zan , Jang Junghoon , Kang Hui , Pawlosky Annalisa , Scott Alexander , Dahl George E. , Berndl Marc , Dimon Michelle , Ferguson B. Scott 
Published: April 2021

Abstract
Aptamers are single-stranded nucleic acid ligands that bind to target molecules with high affinity and specificity. They are typically discovered by searching large libraries for sequences with desirable binding properties. These libraries, however, are practically constrained to a fraction of the theoretical sequence space. Machine learning provides an opportunity to intelligently navigate this space to identify high-performing aptamers. Here, we present a step-by-step protocol for utilizing particle display to select DNA aptamers for a 25 kDa protein biomarker neutrophil gelatinase-associated lipocalin (NGAL).
A pivotal restructuring of modelling the control of COVID-19 during and after massive vaccination for the next few years
Authors: Cruz Jose B , Ronquillo Tirso A , Sangalang Ralph G B , Amante Albertson D , Ronquillo Divina G D , Peralta Janice F , Chua Antonette V , Jose Oliver L J A , Inojosa Raynell A 
Published: April 2021

Abstract
This paper presents a new mathematical feedback model to demonstrate how direct observations of the epidemiological compartments of population could be mapped to inputs, such that the social spread of the disease is asymptotically subdued. Details of the stabilization and robustness are included. This is a pivotal restructuring of modelling the control of corona virus from the current models in use world-wide which do not utilize feedback of functions of epidemiological compartments of population to construct the inputs. Although several vaccines have received Emergency Use Authorization (EUA) massive vaccination would take several years to reach herd immunity in most countries. Furthermore, the period of efficacy of the vaccination may be approximately one year only resulting in an unending vaccination. Even during the vaccination, there would be an urgent need to control the spread of the virus. When herd immunity is reached and vaccination is discontinued, there would be new surges of the disease. These surges of disease are not possible in appropriately designed stable feedback models. However, extensive testing, contact tracing, and medical treatment of those found infected, must be maintained.
Spike-time dependent plasticity rule in memristor models for circuits design
Authors: Elhamdaoui Mouna , Rziga Faten Ouaja , Mbarek Khaoula , Besbes Kamel 
Published: April 2021

Abstract
Abstract Spike Time-Dependent Plasticity (STDP) represents an essential learning rule found in biological synapses which is recommended for replication in neuromorphic electronic systems. This rule is defined as a process of updating synaptic weight that depends on the time difference between the pre- and post-synaptic spikes. It is well known that pre-synaptic activity preceding post-synaptic activity may induce long term potentiation (LTP) whereas the reverse case induces long term depression (LTD). Memristors, which are two-terminal memory devices, are excellent candidates to implement such a mechanism due to their distinctive characteristics. In this article, we analyze the fundamental characteristics of three of the most known memristor models, and then we simulate it in order to mimic the plasticity rule of biological synapses. The tested models are the linear ion drift model (HP), the Voltage ThrEshold Adaptive Memristor (VTEAM) model and the Enhanced Generalized Memristor (EGM) model. We compare the I-V characteristics of these models with an experimental memristive device based on Ta2O5. We simulate and validate the STDP Hebbian learning algorithm proving the capability of each model to reproduce the conductance change for the LTP and LTD functions. Thus, our simulation results explore the most suitable model to operate as a synapse component for neuromorphic circuits.
Affine connection representation of gauge fields
Authors: Man Zhao-Hui 
Published: April 2021

Abstract
There are two ways to unify gravitational field and gauge field. One is to represent gravitational field as principal bundle connection, and the other is to represent gauge field as affine connection. Poincaré gauge theory and metric affine gauge theory adopt the first approach. This paper adopts the second.An affine connection is used to establish a unified coordinate description of gauge field and gravitational field. This theory has the following advantages.(i) Gauge field and gravitational field can both be represented by affine connection; they can be described by a unified spatial frame.(ii) Time can be regarded as the total metric with respect to all dimensions of internal coordinate space and external coordinate space. On-shell can be regarded as gradient direction. Quantum theory can be regarded as a geometric theory of distribution of gradient directions. Hence, gravitational theory and quantum theory obtain the same view of time and space and a unified description of evolution in affine connection representation of gauge fields.(iii) Chiral asymmetry, coupling constants, MNS mixing and CKM mixing can appear spontaneously as geometric properties in affine connection representation, whereas in U(1) x SU(2) x SU(3) principal bundle connection representation they can just only be artificially set up. Some postulates of the Standard Model can be turned into theorems in affine connection representation, so they are not necessary to be regarded as postulates anymore.(iv) The unification theory of gauge fields that are represented by affine connection can avoid the problem that a proton decays into a lepton.(v) Since the concept of point particle is thoroughly abandoned, this theory is not required to be renormalized.(iv) There exists a possible geometric interpretation to the color confinement of quarks.The Standard Model is not possessed of the above advantages. In the affine connection representation, we can get better interpretations of these physical properties. This is probably a necessary step towards the ultimate theory ofphysics.
Hybridization of Harmonic Search Algorithm In Training Radial Basis Function With Dynamic Decay Adjustment For Condition Monitoring
Authors: CHONG Hue Yee , TAN Shing Chiang , Yap Hwa Jen 
Published: April 2021

Abstract
In recent decades, hybridization of superior attributes of few algorithms was proposed to aid in covering more areas of complex application as well as improves performance. This paper presents an intelligent system integrating a Radial Basis Function Network with Dynamic Decay Adjustment (RBFN-DDA) with a Harmony Search (HS) to perform condition monitoring in industrial processes. An effective condition monitoring can help reduce unexpected breakdown incidents and facilitate in maintenance. RBDN-DDA performs incremental learning wherein its structure expands by adding new hidden units to include new information. As such, its training can reach stability in a shorter time compared to the gradient-descent based methods. By integrating with the HS algorithm, the proposed metaheuristic neural network (RBFN-DDA-HS) can optimize the RBFN-DDA parameters and improve classification performances from the original RBFN-DDA by 2.2% up to 22.5% in two benchmarks and a real-world condition-monitoring case studies. The results also show that the proposed RBFN-DDA-HS is compatible, if not better than, the classification performances of other state-of-art machine learning methods.