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Artículos de revistas sobre el tema "Aggressiveness in children – Mathematical models"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 11 de febrero de 2022

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1

Cabrefiga, Jordi, and Emilio Montesinos. "Analysis of Aggressiveness of Erwinia amylovora Using Disease-Dose and Time Relationships." Phytopathology® 95, no. 12 (December 2005): 1430–37. http://dx.doi.org/10.1094/phyto-95-1430.

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The aggressiveness of an extensive collection of strains of Erwinia amylovora was analyzed using immature fruit and detached pear flower assays under controlled environmental conditions. The analysis was performed by means of a quantitative approach based on fitting data to mathematical models that relate infection incidence to pathogen dose and time. Probit and hyperbolic saturation models were used for disease-dose relationships and provided information on the median effective dose (ED50). Values of ED50 ranged from 103 to 106 CFU/ml (10 to 104 CFU per site of inoculation). A modified Gomper

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2

Vilyunov, Sergey D. "Study of the contribution of horizontal stability in the probability model of the “hostpathogen” interaction system on the basis of millet varieties susceptible to smut." Agrarian science, no. 11-12 (January 20, 2021): 97–100. http://dx.doi.org/10.32634/0869-8155-2020-343-11-97-100.

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Digital control of breeding process, creation of mathematical models of living objects and management of plant life cycle is an urgent problem of modern times. Сreation of technologies that ensure implementation of the concept of advanced digital "smart" agriculture is impossible without basic mathematical models of "mass interactions" of natural living objects. This primarily affects the spread of certain diseases in populations. In the plant world, such a convenient model object is the well-studied "host-pathogen" system by the example of the interaction of millet and its smut disease. At pr

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3

Molina, Julio C., Carlito Calil Júnior, and Roberto R. de Freitas. "Mathematical model to estimate of the deterioration of wooden poles in contact with soil used in rural areas." Engenharia Agrícola 31, no. 5 (October 2011): 1015–26. http://dx.doi.org/10.1590/s0100-69162011000500019.

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In São Paulo State, mainly in rural areas, the utilization of wooden poles is observed for different purposes. In this context, wood in contact with the ground presents faster deterioration, which is generally associated to environmental factors and, especially to the presence of fungi and insects. With the use of mathematical models, the useful life of wooden structures can be predicted by obtaining "climatic indexes" to indicate, comparatively among the areas studied, which have more or less tendency to fungi and insects attacks. In this work, by using climatological data of several cities a

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4

Touger, Hallie Ephron. "Models: Help or Hindrance?" Arithmetic Teacher 33, no. 7 (March 1986): 36–37. http://dx.doi.org/10.5951/at.33.7.0036.

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Modeling mathematical operations using pictures and other concrete materials is a valuable technique to help children develop an understanding of mathematical concepts. A teacher feels secure that a child understand an algorithm when the child can build or draw a model of it. But a model that work for one child, that is, one that helps him or her to see a solution more easily, may make a problem seem more difficult for another child.

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5

Langemann, Dirk, Igor Nesteruk, and Jürgen Prestin. "Comparison of mathematical models for the dynamics of the Chernivtsi children disease." Mathematics and Computers in Simulation 123 (May 2016): 68–79. http://dx.doi.org/10.1016/j.matcom.2016.01.003.

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6

Małysz, Zbigniew. "Computer games and the aggressiveness, aggression/aggressive behaviour of children and adolescents. A contribution to the psychopedagogical analysis of the problem." Problemy Opiekuńczo-Wychowawcze 579, no. 4 (April 30, 2019): 39–51. http://dx.doi.org/10.5604/01.3001.0013.2841.

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The article deals with the problem of (theoretical) dependencies between playing (aggressive) computer games and aggressiveness, aggression/aggressive behaviours of children and adolescents in the context of Albert Bandura's social learning theory and their empirical description based on a meta-analysis/analysis of existing (selected) research data of the topical problem (due to the available sources and the accepted logic of analysis this text is a contribution to the psychopedagogical analysis of the problem). The author starts from a brief discussion of the essence of the theory of social l

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7

English, Lyn D., Jillian L. Fox, and James J. Watters. "Problem Posing and Solving with Mathematical Modeling." Teaching Children Mathematics 12, no. 3 (October 2005): 156–63. http://dx.doi.org/10.5951/tcm.12.3.0156.

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In recent years, we have introduced elementary school children to the powerful world of mathematical modeling. Models are used to interpret real-world situations in a mathematical format. For example, graphs and tables model complex relationships among various phenomena.

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8

Antoñanzas, Jose Luis. "The Relationship of Personality, Emotional Intelligence, and Aggressiveness in Students: A Study Using the Big Five Personality Questionnaire for Children and Adults (BFQ-NA)." European Journal of Investigation in Health, Psychology and Education 11, no. 1 (December 25, 2020): 1–11. http://dx.doi.org/10.3390/ejihpe11010001.

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An analysis of secondary students’ personality traits, along with a description of their emotional intelligence levels and their anger control, could be decisive when educating students to prevent anti-social behavior in academia. Very few studies on personality, emotional intelligence, and aggressive conduct exist in Spain. Some of the studies that do exist, however, only explore the relationship between emotional intelligence, personality, and prosocial behavior in secondary education students. Likewise, there are few studies focusing on personality and aggression control. In this study, usi

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9

Penner, Elizabeth, and Richard Lehrer. "The Shape of Fairness." Teaching Children Mathematics 7, no. 4 (December 2000): 210–14. http://dx.doi.org/10.5951/tcm.7.4.0210.

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Shape and form are often used as mathematical models of situations. For example, teachers explain that light travels in a line or that the shadow cast by a person is related by similar triangles to that cast by a flagpole. Yet despite the common use of mathematical models in the sciences and in design professions, children rarely have the opportunity to participate in this form of mathematical thinking. In this article, we describe how first and second graders modeled a “fair” playing space in a game of tag called “Mother, may I?” The children modeled the playing space by using a succession of

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10

Kazyra, I. A., and A. V. Sukalo. "MODELS FOR THE PROGNOSIS OF THE PROGRESSIVE COURSE OF CHRONIC GLOMERULOPATHIES IN CHILDREN." Journal of the Grodno State Medical University 19, no. 4 (September 12, 2021): 424–27. http://dx.doi.org/10.25298/2221-8785-2021-19-4-424-427.

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Background. The study of the rate of progression, the identification of the most significant risk factors for the unfavorable course of chronic glomerulopathies (GP) for the implementation of preventive measures is an important research area. Purpose of the study. Development of mathematical models for the short-term prognosis of the progression of primary and secondary chronic GP in children. Material and methods. A comprehensive examination was carried out of 88 patients with secondary, 188 with primary morphologically verified GP, who were under observation in the center of pediatric nephro

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11

Fuks, Henryk, and Nino Boccara. "Generalized Deterministic Traffic Rules." International Journal of Modern Physics C 09, no. 01 (February 1998): 1–12. http://dx.doi.org/10.1142/s0129183198000029.

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We study a family of deterministic models for highway traffic flow which generalize cellular automaton rule 184. This family is parameterized by the speed limit m and another parameter k that represents a "degree of aggressiveness" in driving, strictly related to the distance between two consecutive cars. We compare two driving strategies with identical maximum throughput: "conservative" driving with high speed limit and "aggressive" driving with low speed limit. Those two strategies are evaluated in terms of accident probability. We also discuss fundamental diagrams of generalized traffic rul

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Fedulova, E. N., A. S. Gordetsov, O. V. Fedorova, L. V. Korkotashvili, and O. A. Tutina. "USE OF MATHEMATICAL MODELS INFRARED SPECTROSCOPY SERUM IN THE DIFFERENTIAL DIAGNOSIS OF ULCERATIVE COLITIS AND CROHN'S DISEASE IN CHILDREN." Annals of the Russian academy of medical sciences 68, no. 12 (December 10, 2013): 44–48. http://dx.doi.org/10.15690/vramn.v68i12.859.

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Relevance of research. Inflammatory bowel diseases are among the most severe pathologies in pediatric gastroenterology, often lead to disability. Despite the similarity of the clinic, pathogenetic mechanisms, the question of the differential diagnosis of ulcerative colitis and Crohn's disease is relevant in view of their different prognosis and treatment strategy. In recent years, in medical uses infrared spectroscopy of blood serum for the differential diagnosis of various inflammatory diseases, benign and malignant tumors. Besides finding increasing application of mathematical methods for da

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13

Lanzieri, Tatiana M., Paul A. Gastañaduy, Manoj Gambhir, and Stanley A. Plotkin. "Review of Mathematical Models of Vaccination for Preventing Congenital Cytomegalovirus Infection." Journal of Infectious Diseases 221, Supplement_1 (March 5, 2020): S86—S93. http://dx.doi.org/10.1093/infdis/jiz402.

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Abstract Background Several cytomegalovirus (CMV) vaccine candidates are under development. To reduce the burden of congenital CMV infection, potential strategies under consideration include vaccination of adult women, adolescent girls, and/or young children (both sexes). Methods We reviewed 5 studies that used infectious disease modeling to assess the potential impact of vaccination for preventing congenital CMV infection. All models assumed CMV vaccination would prevent primary infection and 2 models also assumed prevention of reinfections and reactivations. Results Despite differences in st

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14

Aouad, Razika, and Idriss Amara. "Influence of the cutting condition on the wear and the surface roughness in the steel AISI 4140 with mixed ceramic and diamond tool." Journal of Engineering, Design and Technology 16, no. 6 (December 4, 2018): 828–36. http://dx.doi.org/10.1108/jedt-05-2018-0086.

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PurposeThe purpose of this paper is to study the influence of the cutting conditions (cutting speed, feed rate and cutting depth) on the roughness (Ra) and on the flank wear (Vb) of the steel AISI 4140.Design/methodology/approachMixed ceramic (CC650) and polycrystalline cubic boron nitride (PCBN) have been used to carry out straight turning tests under dry conditions.FindingsThe results indicate that PCBN is more efficient than mixed ceramic (Al2O3+TiC) used in terms of wear resistance regardless of the aggressiveness of the AISI 4140 at 50 hardness rockwell (HRC). Consequently, it is the most

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15

Alexander, R. McNeill. "Simple Models of Human Locomotion." Journal of Theoretical Medicine 1, no. 2 (1997): 129–35. http://dx.doi.org/10.1080/10273669708833013.

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The human body is a complex structure, but our understanding of its movements is greately enhanced by extremely simple mathematical models. A model of walking shows why we have to break into a run at speeds above 3 meters per second, and why the critical speed is lower for children and on the moon. A model of running jumps show why long jumpers run up at a fast sprinting speed, but high jumpers run up much more slowly. Finally, a model od standing jumps explains why athletes can jump higher by using a countermovement than from a static squatting position. The body is represented in these model

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16

Agarkov, N. M., A. S. Makaryan, and I. S. Gontareva. "Advancing diagnostics of chronic paradontitis in children." Russian Journal of Infection and Immunity 10, no. 3 (August 7, 2020): 558–64. http://dx.doi.org/10.15789/2220-7619-ado-1186.

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Chronic periodontitis in children and adolescents holds a lead place in morbidity pattern of dental pathology. Development of chronic periodontitis is accompanied by emergence of various complications in the maxillofacial region, leading to bite disturbance being of high relevance for pediatric patients. These and other complications are related to immune system immaturity in children and adolescents as well as virulence of microorganisms. However, the immunological changes developing in children with chronic periodontitis remain poorly studied. The aim of the work was to improve diagnostics o

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17

Stolte, Marije, Trinidad García, Johannes E. H. Van Luit, Bob Oranje, and Evelyn H. Kroesbergen. "The Contribution of Executive Functions in Predicting Mathematical Creativity in Typical Elementary School Classes: A Twofold Role for Updating." Journal of Intelligence 8, no. 2 (June 2, 2020): 26. http://dx.doi.org/10.3390/jintelligence8020026.

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The goal of the current study was to investigate the role of executive functions in mathematical creativity. The sample included 278 primary school children (ages 8–13). Two models were compared: the starting model tested whether executive functions (shifting, updating, and inhibition), domain-general creativity, and mathematical ability directly predicted mathematical creativity. The second model, which fitted the data best, included the additional assumption that updating influences mathematical creativity indirectly through mathematical ability and domain-general creativity. Updating was po

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18

Krotova, O. S., L. A. Khvorova, and A. I. Piyanzin. "Mathematical Models and Machine Learning Algorithms in the Diagnosis of Complications of Type 1 Diabetes Mellitus." Izvestiya of Altai State University, no. 1(117) (March 17, 2021): 97–101. http://dx.doi.org/10.14258/izvasu(2021)1-16.

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The paper deals with the problem of diabetic polyneuropathy diagnosing. This is one of the earliest and most dangerous complications of diabetes among children and adolescents. The research aims to develop models for diagnosing diabetic polyneuropathy in children and adolescents based on various medical data. The developed models will make it possible to diagnose a complication without using neurophysiological research methods. Therefore, the proposed models can be used in small medical and obstetrical stations in rural areas as well as a support system for making medical decisions. In the cou

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19

Buschang, P. H., R. Tanguay, A. Demirjian, L. LaPalme, and J. Turkewicz. "Mathematical models of longitudinal mandibular growth for children with normal and untreated Class I division 1 malocclusion." European Journal of Orthodontics 10, no. 1 (February 1, 1988): 227–34. http://dx.doi.org/10.1093/ejo/10.1.227.

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20

Buschang, P. H., R. Tanguay, A. Demirjian, L. LaPalme, and J. Turkewicz. "Mathematical models of longitudinal mandibular growth for children with normal and untreated Class II, division 1 malocclusion." European Journal of Orthodontics 10, no. 3 (August 1, 1988): 227–34. http://dx.doi.org/10.1093/ejo/10.3.227.

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21

Raghubar, Kimberly P., Marcia A. Barnes, Mary Prasad, Chad P. Johnson, and Linda Ewing-Cobbs. "Mathematical Outcomes and Working Memory in Children With TBI and Orthopedic Injury." Journal of the International Neuropsychological Society 19, no. 3 (November 20, 2012): 254–63. http://dx.doi.org/10.1017/s1355617712001312.

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AbstractThis study compared mathematical outcomes in children with predominantly moderate to severe traumatic brain injury (TBI;n= 50) or orthopedic injury (OI;n=47) at 2 and 24 months post-injury. Working memory and its contribution to math outcomes at 24 months post-injury was also examined. Participants were administered an experimental cognitive addition task and standardized measures of calculation, math fluency, and applied problems; as well as experimental measures of verbal and visual-spatial working memory. Although children with TBI did not have deficits in foundational math fact ret

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22

Levashcva, S. V., E. I. Etkina, A. A. Fazylova, G. D. Sakaeva, L. I. Babenkova, and N. A. Orlova. "Predictive model of development of atopic dermatitis in children." Russian Journal of Allergy 13, no. 2 (December 15, 2016): 27–31. http://dx.doi.org/10.36691/rja379.

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Background. To identify the set of possible predictors of atopic dermatitis forming in children. Methods. There were 440 children aged from 0 to 18 years old (315 patients with atopic dermatitis, 125 - children of the monitoring group) under investigation. Mathematical models used logistic regression method were developed. Results. On the basis of the obtained data the logistic regression equation was selected, including 16 predictors, statistical significance of which was within 5% of the Wald statistics. Conclusion. Practical application of the devised formula will help to identify children

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Gottlieb, Mark M. "Mathematical Models for Possible Roles of Oxytocin and Oxytocin Receptors in Autism." Computational and Mathematical Methods in Medicine 2019 (November 11, 2019): 1–10. http://dx.doi.org/10.1155/2019/7308197.

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This paper develops mathematical models examining possible roles of oxytocin and oxytocin receptors in the development of autism. This is done by demonstrating that mathematical operations on normalized data from the Stanford study, which establishes a correspondence between severity of autism in children and their oxytocin blood levels, generate a graph that is the same as the graph of mathematical operations on a normalized theoretical model for the severity of autism. This procedure establishes the validity of the theoretical model and the significance of oxytocin receptors in autism. A ste

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Carpenter, Thomas P., Ellen Ansell, Megan L. Franke, Elizabeth Fennema, and Linda Weisbeck. "Models of Problem Solving: A Study of Kindergarten Children's Problem-Solving Processes." Journal for Research in Mathematics Education 24, no. 5 (November 1993): 428–41. http://dx.doi.org/10.5951/jresematheduc.24.5.0428.

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Seventy kindergarten children who had spent the year solving a variety of basic word problems were individually interviewed as they solved addition, subtraction, multiplication, division, multistep, and nonroutine word problems. Thirty-two children used a valid strategy for all nine problems and 44 correctly answered seven or more problems. Only 5 children were not able to answer any problems correctly. The results suggest that children can solve a wide range of problems, including problems involving multiplication and division situations, much earlier than generally has been presumed. With on

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Kontarov, N. A., G. V. Arkharova, Yu B. Grishunina, S. A. Grishunina, and N. V. Yuminova. "SIR+A mathematical model for evaluating and predicting 2016–2017 ARVI-influenza incidence by using on the Moscow territory." Russian Journal of Infection and Immunity 9, no. 3-4 (November 15, 2019): 583–88. http://dx.doi.org/10.15789/2220-7619-2019-3-4-583-588.

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Influenza is a major challenge to global healthcare due to its high transmissivity and ability to cause major epidemics. Influenza epidemics and pandemics are associated with changes in the society structure that contribute to the spread of new viral strains in certain environmental and social settings. Currently, influenza is one of the most common global diseases that results in annual epidemics or even pandemics, often leading to lethal outcome. Influenza viruses are uniquely prone to variability via point mutations, recombination and gene reassortment accompanied with changes in their biol

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Paprocka, Justyna, Marek Kijonka, Łukasz Boguszewicz, and Maria Sokół. "Melatonin in Tuberous Sclerosis Complex Analysis Using Modern Mathematical Modeling Methods." International Journal of Endocrinology 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/8234502.

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Purpose. The aim of the study was to assess melatonin secretion pattern in children with TSC and to compare it with the secretion patterns in children with and without epilepsy.Material and Methods. Melatonin secretion was measured every three hours using the RIA method in four children with recognized TSC. The parameters of the melatonin secretion models were interpreted and compared with those obtained for the patients with epilepsy (n=76) and the children from the control, nonepileptic group (n=36). To describe the diurnal melatonin secretion, mathematical model was constructed and nonlinea

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Gay, N. J., L. M. Hesketh, P. Morgan-Capner, and E. Miller. "Interpretation of serological surveillance data for measles using mathematical models: implications for vaccine strategy." Epidemiology and Infection 115, no. 1 (August 1995): 139–56. http://dx.doi.org/10.1017/s0950268800058209.

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SummarySerological surveillance of measles immunity has been carried out in England since 1986/7. Results from sera collected in 1989–91 revealed that the proportion of school age children who were susceptible to measles was increasing, following the introduction of the measles, mumps and rubella vaccination programme in October 1988. Mathematical models are used to interpret these data and determine whether this increasing susceptibility is sufficient to allow a resurgence of disease from the low levels achieved by 1993. The models summarize serological profiles by a single parameter, the rep

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Grabauskienė, Vaiva, and Oksana Mockaitytė-Rastenienė. "AN EXPRESSION OF MATHEMATICAL CONNECTIONS IN MULTIPLICATION-RELATED THINKING IN THIRD AND FOURTH GRADES OF PRIMARY SCHOOL." ŠVIETIMAS: POLITIKA, VADYBA, KOKYBĖ / EDUCATION POLICY, MANAGEMENT AND QUALITY 11, no. 1 (August 25, 2019): 9–29. http://dx.doi.org/10.48127/spvk-epmq/19.11.09.

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Mathematical comprehension is closely related to a cognition of mathematical connections. A multiplication is a mathematical operation characterized by complex mathematical connections. Students are early introduced with the multiplication. Therefore, in primary school, not so developed cognition of mathematical connections may become a reason for difficulties in Maths. A functionality of concept is based on a view to a multiplication. The analysis scientific literature revealed that a thinking of multiplication can be either additive or multiplicative. Additionally, the multiplication learnin

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Field, Andy P., Danielle Evans, Tomasz Bloniewski, and Yulia Kovas. "Predicting maths anxiety from mathematical achievement across the transition from primary to secondary education." Royal Society Open Science 6, no. 11 (November 2019): 191459. http://dx.doi.org/10.1098/rsos.191459.

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The primary- to secondary-education transition is a substantive life event for many children. The transition can be associated with changes in the developmental trajectories of both emotional health and academic achievement. The current study looked at whether the trajectory of mathematical attainment and emotional health (anxiety) across this transition predicted later maths anxiety. A secondary analysis of data from the Twin Early Development Study (TEDS) was performed. The statistical models were fit on the 753 participants (one from each twin pair) for which there were measures of mathemat

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Santalova, Galina V., Svetlana V. Plakhotnikova, and Elena S. Gasilina. "ADAPTIVE CAPACITY CHARACTERISTICS IN CHILDREN WITH TONSILLITIS IN COURSE OF ACUTE INFECTIOUS DISEASES." Science and Innovations in Medicine 4, no. 1 (March 15, 2019): 63–66. http://dx.doi.org/10.35693/2500-1388-2019-4-1-63-66.

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Objectives - to improve a method of assessment for adaptive capacity of children with tonsillitis in course of acute infectious diseases, based on the parameters of the autonomic nervous system. Material and methods. The prospective study included clinical, anamnestic and laboratory examination of children with acute infectious diseases with concurrent tonsillitis syndrome. The factors under study underwent a systematic multivariate analysis. Results. Heart rate variability was assessed with the following comparative statistical analysis of the acquired data. By mathematical modeling we estima

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Kurnia, Rina, and Yeti Nurhayati. "DEVELOPMENT OF INQUIRY-BASED STUDENT WORKSHEETS (LKPD) ON MATHEMATICS SUBJECT IN THE MATERIAL OF CUBES AND BLOCKS TO IMPROVE MATHEMATICAL UNDERSTANDING OF SLOW LEANERS." PrimaryEdu - Journal of Primary Education 4, no. 1 (February 19, 2020): 12. http://dx.doi.org/10.22460/pej.v4i1.1468.

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This research is background by most of the slow learner children who are slow in understanding the basic concepts of cubes and blocks, slow learners children still have difficulty in verbally defining the concept of cubes and blocks. This research aims to develop the Student Inquiry Worksheet (LKPD) based on inquiry in the mathematics subject matter of cubes and beams in slow learners and to find out the improvement of the ability of mathematical understanding of slow learners of children on cube and blocks material after applying inquiry-based learning models. The research was conducted at SD

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Barnes, Marcia A., Allison Stubbs, Kimberly P. Raghubar, Alba Agostino, Heather Taylor, Susan Landry, Jack M. Fletcher, and Brenda Smith-Chant. "Mathematical Skills in 3- and 5-Year-Olds with Spina Bifida and Their Typically Developing Peers: A Longitudinal Approach." Journal of the International Neuropsychological Society 17, no. 3 (March 22, 2011): 431–44. http://dx.doi.org/10.1017/s1355617711000233.

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AbstractPreschoolers with spina bifida (SB) were compared to typically developing (TD) children on tasks tapping mathematical knowledge at 36 months (n = 102) and 60 months of age (n = 98). The group with SB had difficulty compared to TD peers on all mathematical tasks except for transformation on quantities in the subitizable range. At 36 months, vocabulary knowledge, visual–spatial, and fine motor abilities predicted achievement on a measure of informal math knowledge in both groups. At 60 months of age, phonological awareness, visual–spatial ability, and fine motor skill were uniquely and d

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Mulligan, Joanne T., and Michael C. Mitchelmore. "Young Children's Intuitive Models of Multiplication and Division." Journal for Research in Mathematics Education 28, no. 3 (May 1997): 309–30. http://dx.doi.org/10.5951/jresematheduc.28.3.0309.

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In this study, an intuitive model was defined as an internal mental structure corresponding to a class of calculation strategies. A sample of female students was observed 4 times during Grades 2 and 3 as they solved the same set of 24 word problems. From the correct responses, 12 distinct calculation strategies were identified and grouped into categories from which the children's intuitive models of multiplication and division were inferred. It was found that the students used 3 main intuitive models: direct counting, repeated addition, and multiplicative operation. A fourth model, repeated su

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Yang, Yunwen, Anne L. Adolph, Maurice R. Puyau, Firoz A. Vohra, Nancy F. Butte, and Issa F. Zakeri. "Modeling energy expenditure in children and adolescents using quantile regression." Journal of Applied Physiology 115, no. 2 (July 15, 2013): 251–59. http://dx.doi.org/10.1152/japplphysiol.00295.2013.

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Advanced mathematical models have the potential to capture the complex metabolic and physiological processes that result in energy expenditure (EE). Study objective is to apply quantile regression (QR) to predict EE and determine quantile-dependent variation in covariate effects in nonobese and obese children. First, QR models will be developed to predict minute-by-minute awake EE at different quantile levels based on heart rate (HR) and physical activity (PA) accelerometry counts, and child characteristics of age, sex, weight, and height. Second, the QR models will be used to evaluate the cov

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Zakeri, Issa F., Anne L. Adolph, Maurice R. Puyau, Firoz A. Vohra, and Nancy F. Butte. "Multivariate adaptive regression splines models for the prediction of energy expenditure in children and adolescents." Journal of Applied Physiology 108, no. 1 (January 2010): 128–36. http://dx.doi.org/10.1152/japplphysiol.00729.2009.

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Advanced mathematical models have the potential to capture the complex metabolic and physiological processes that result in heat production or energy expenditure (EE). Multivariate adaptive regression splines (MARS) is a nonparametric method that estimates complex nonlinear relationships by a series of spline functions of the independent predictors. The specific aim of this study is to construct MARS models based on heart rate (HR) and accelerometer counts (AC) to accurately predict EE, and hence 24-h total EE (TEE), in children and adolescents. Secondarily, MARS models will be developed to pr

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Morris, Bradley J., and Amy M. Masnick. "Making numbers out of magnitudes." Behavioral and Brain Sciences 31, no. 6 (December 2008): 662–63. http://dx.doi.org/10.1017/s0140525x08005797.

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AbstractWe argue that number principles may be learnable instead of innate, by suggesting that children acquire probabilistically true number concepts rather than algorithms. We also suggest that non-propositional representational formats (e.g., mental models) may implicitly provide information that supports the induction of numerical principles. Given probabilistically true number concepts, the problem of the acquisition of mathematical principles is eliminated.

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37

Albarracín, Lluís, and Núria Gorgorió. "Mathematical Modeling Projects Oriented towards Social Impact as Generators of Learning Opportunities: A Case Study." Mathematics 8, no. 11 (November 15, 2020): 2034. http://dx.doi.org/10.3390/math8112034.

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This paper presents a case study carried out at an elementary school that led to a characterization of mathematical modeling projects aimed at generating social impact. It shows their potential as generators of mathematical learning opportunities. In the school project, upper-grade students (sixth grade, 11-year-olds) studied the way in which the rest of the students at the institution traveled from their homes to school. Its purpose was to identify risk points from the standpoint of road safety and to develop a set of recommendations so that all the children could walk safely to school. In ou

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38

Berman, Barbara, and Fredda Friederwitzer. "Algebra Can Be Elementary … When It's Concrete." Arithmetic Teacher 36, no. 8 (April 1989): 21–24. http://dx.doi.org/10.5951/at.36.8.0021.

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Effective mathematics requires more than the use of symbols or numerals. All students, and even many adults, need concrete models to understand mathematical concepts. Elementary and middle school children can understand and master basic concepts of mathematics, including algebra, when concrete materials are used to model these concepts. This article presents a rationale for these statements and describes a model for teaching early algebraic concepts using manipulative materials.

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39

Dimitrova, Krasimira. "A MODEL FOR FORMING SOFT SKILLS THROUGH COGNITIVE MATHEMATICAL ACTIVITIES IN PRESCHOOL AGE." KNOWLEDGE INTERNATIONAL JOURNAL 31, no. 6 (June 5, 2019): 1899–904. http://dx.doi.org/10.35120/kij31061899d.

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The modern children grow and develop in an extremely dynamic environment. They are surrounded by a variety of information and many digital devices. The ways of processing and using knowledge, as well as the formation of specific skills, are based on the child's personal experiences and social contacts. The community responsible for the development and upbringing of the growing generation - parents, school, kindergarten, educational institutions - are confronted with the complex task of preparing children for their lives in the future. The dynamic with which all spheres of social life are devel

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40

Gavrilova, Anna E., Elena V. Nagaeva, Olga Yu Rebrova, and Tatiana Yu Shiryaeva. "Mathematical models for predicting final achieved height and its standard deviation rate in children with growth hormone deficiency in the Russian population." Problems of Endocrinology 63, no. 5 (December 11, 2017): 282–90. http://dx.doi.org/10.14341/probl2017635282-290.

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Background. Predicting the efficacy of rGH therapy in patients with GH deficiency, based on the final achieved height (FAH) criterion, is an important tool for the clinician. It enables a personalized approach to the treatment of patients with GH deficiency: to recommend careful adherence to the regimen and dosage of the drug, evaluate the efficacy of therapy in different groups of patients, and clearly demonstrate the factors affecting the FAH indicator. Aim — to develop mathematical models for predicting FAH and its standard deviation score (SDS) in patients with GH deficiency in the R

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41

Putri, Desy Eka, Siti Nurinayah, Fifiet Dwi Tresna Santana, and Dewi Safitri Elshap. "MENGEMBANGKAN KECERDASAN LOGIS MATEMATIK PADA ANAK USIA DINI MELALUI METODE CERITA BERGAMBAR MODEL POP UP KELOMPOK B." CERIA (Cerdas Energik Responsif Inovatif Adaptif) 2, no. 6 (September 14, 2019): 382. http://dx.doi.org/10.22460/ceria.v2i6.p382-387.

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This research was conducted to find out the differences from the learning methods of ordinary pictorial stories with the pop up models of the more unique and different pop up models, but also through this research it is hoped to provide new experiences for children, bearing in mind that learning is still focused on writing, reading and counting (calistung). This study uses the experimental method because there is a comparison between the control class and the experimental class. The subject and location of the study were group B students. The study population was the B-Saturn group and the B-U

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42

Худолій, О. М., and О. В. Іващенко. "Conceptual going near the modelign of process of educating and developing motive flairs for children and teenagers." Teorìâ ta Metodika Fìzičnogo Vihovannâ, no. 2 (June 30, 2013): 3–16. http://dx.doi.org/10.17309/tmfv.2013.2.1012.

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Research aim — to ground conception of construction of process of educating and developing motive flairs for children and teenagers on the basis of design of separate components of educational process. For the decision of the put tasks such methods of research : are in-process used design, approach of the systems, methods of theoretical analysis and generalization for the exposure of essence, leading tendencies of optimization of educational process and determination of theoretical pre-conditions and methodological approaches of his further improvement; pedagogical testing, methods of registra

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43

Cristofani, Chiara, Gianluca Sesso, Paola Cristofani, Pamela Fantozzi, Emanuela Inguaggiato, Pietro Muratori, Antonio Narzisi, et al. "The Role of Executive Functions in the Development of Empathy and Its Association with Externalizing Behaviors in Children with Neurodevelopmental Disorders and Other Psychiatric Comorbidities." Brain Sciences 10, no. 8 (July 28, 2020): 489. http://dx.doi.org/10.3390/brainsci10080489.

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Executive functions have been previously shown to correlate with empathic attitudes and prosocial behaviors. People with higher levels of executive functions, as a whole, may better regulate their emotions and reduce perceived distress during the empathetic processes. Our goal was to explore the relationship between empathy and executive functioning in a sample of children and adolescents diagnosed with Attention Deficit and Hyperactivity Disorder alone or associated with comorbid Disruptive Behavior Disorders and/or Autism Spectrum Disorder. We also aimed to examine the role of empathic dimen

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44

Motaze, Nkengafac Villyen, Ijeoma Edoka, Charles S. Wiysonge, C. Jessica E. Metcalf, and Amy K. Winter. "Rubella Vaccine Introduction in the South African Public Vaccination Schedule: Mathematical Modelling for Decision Making." Vaccines 8, no. 3 (July 13, 2020): 383. http://dx.doi.org/10.3390/vaccines8030383.

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Background: age structured mathematical models have been used to evaluate the impact of rubella-containing vaccine (RCV) introduction into existing measles vaccination programs in several countries. South Africa has a well-established measles vaccination program and is considering RCV introduction. This study aimed to provide a comparison of different scenarios and their relative costs within the context of congenital rubella syndrome (CRS) reduction or elimination. Methods: we used a previously published age-structured deterministic discrete time rubella transmission model. We obtained estima

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45

Yang, Charles. "A formalist perspective on language acquisition." Epistemological issue with keynote article “A Formalist Perspective on Language Acquisition” by Charles Yang 8, no. 6 (November 26, 2018): 665–706. http://dx.doi.org/10.1075/lab.18014.yan.

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Abstract Language acquisition is a computational process by which linguistic experience is integrated into the learner’s initial stage of knowledge. To understand language acquisition thus requires precise statements about these components and their interplay, stepping beyond the philosophical and methodological disputes such as the generative vs. usage-based approaches. I review several mathematical models that have guided the study of child language acquisition: How learners integrate experience with their prior knowledge of linguistic structures, How researchers assess the progress of langu

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46

Hopper, J. L., M. E. Hibbert, G. T. Macaskill, P. D. Phelan, and L. I. Landau. "Longitudinal analysis of lung function growth in healthy children and adolescents." Journal of Applied Physiology 70, no. 2 (February 1, 1991): 770–77. http://dx.doi.org/10.1152/jappl.1991.70.2.770.

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Lung function and height in 242 8-yr-old and 299 12-yr-old children without known or suspected predisposition to lung disease were measured annually over 6 and 8 yr, respectively. Growth of forced expiratory volume in 1 s (FEV1), vital capacity, and expiratory flow after expiring 50% of vital capacity were statistically modeled by age and height by use of a multivariate normal model for longitudinal data. This method has the flexibility to fit an appropriate (not necessarily linear) mathematical description of average lung function while concurrently modeling the covariance between measures on

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47

McClintock, Ruth. "Animating Geometry with Flexigons." Mathematics Teacher 87, no. 8 (November 1994): 602–6. http://dx.doi.org/10.5951/mt.87.8.0602.

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Viewing mathematics as communication is the second standard listed for all grade levels in the NCTM's Curriculum and Evaluation Standards for School Mathematics (1989). This emphasis underscores the need for nurturing language skills that enable children to translate nonverbal awareness into words. One way to initiate discussion about mathematical concepts is to use physical models and manipulatives. Standard 4 of the Professional Standards for Teaching Mathematics (NCTM 1991) addresses the need for tools to enhance discourse. The flexigon is a simple and inexpensive conversation piece that he

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48

Motaze, Nkengafac Villyen, Zinhle E. Mthombothi, Olatunji Adetokunboh, C. Marijn Hazelbag, Enrique M. Saldarriaga, Lawrence Mbuagbaw, and Charles Shey Wiysonge. "The Impact of Rubella Vaccine Introduction on Rubella Infection and Congenital Rubella Syndrome: A Systematic Review of Mathematical Modelling Studies." Vaccines 9, no. 2 (January 25, 2021): 84. http://dx.doi.org/10.3390/vaccines9020084.

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Introduction: Rubella vaccines have been used to prevent rubella and congenital rubella syndrome (CRS) in several World Health Organization (WHO) regions. Mathematical modelling studies have simulated introduction of rubella-containing vaccines (RCVs), and their results have been used to inform rubella introduction strategies in several countries. This systematic review aimed to synthesize the evidence from mathematical models regarding the impact of introducing RCVs. Methods: We registered the review in the international prospective register of systematic reviews (PROSPERO) with registration

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49

Zubarenko, O. V., T. V. Stoieva, L. I. Koval, G. K. Kopiyka, and R. M. Papinko. "Prognosis of cellular energy metabolism shifts in adolescents with community-acquired pneumonia." Medicni perspektivi (Medical perspectives) 26, no. 1 (March 26, 2021): 143–49. http://dx.doi.org/10.26641/2307-0404.2021.1.227956.

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Pneumonia is one of the most severe respiratory pathology forms in children, which contributes significantly to infant mortality. The high risk of chronic bronchopulmonary process and child`s disability, in case of severe and complicated disease, requires careful pathophysiological change's analysis in community-acquired pneumonia (CAP) in children. In particular, for the prediction of these disorders in children with CAP are important the dysmetabolic phenomena study and the specific approaches development. The immediate aim of this work is to study the cellular energy metabolism (CEM) featur

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Shi, Lei, Xiaoliang Feng, Longxing Qi, Yanlong Xu, and Sulan Zhai. "Modeling and Predicting the Influence of PM2.5 on Children’s Respiratory Diseases." International Journal of Bifurcation and Chaos 30, no. 15 (December 9, 2020): 2050235. http://dx.doi.org/10.1142/s0218127420502351.

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In this paper, the influence of PM[Formula: see text] on children’s respiratory diseases is taken as the main research focus. Based on the real monitoring data of children’s respiratory diseases in Anhui province, the traditional model is modified substantially, leading to the establishment of two mathematical models. First of all, considering that the PM[Formula: see text] changes over time, a nonautonomous air pollution-related disease model is constructed to study its permanence and extinction. Furthermore, regarding lag days of PM[Formula: see text] exposure, an air pollution-related disea

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