36 research outputs found
Influence of motivation on the perception of mathematics by secondary school students
Motivation, the teacherâstudent relationship, the use of resources, and the
time spent studying, in addition to the family economic and social context,
are some of the factors that affect academic performance and directly
influence student failure. This paper evaluates the motivation in mathematics
studentsâ performances by analyzing indicators of the mathematics learning
dimensions. A total of 2,018 secondary students were evaluated in this
cross-sectional study. Motivation, teaching, resources, and study time were
analyzed with a validated 20-item questionnaire. Statistical analysis revealed
that student motivation appears to be significantly related to perceptions
of teaching practices and the use of resources for study. Students with
high motivation have positive perceptions of teaching practices. Gender
differences were not observed. In addition, the motivation indicator allowed
for grouping students into various motivational profiles
Estimating the Academic Performance of Secondary Education Mathematics Students: A Gain Lift Predictive Model
Several socioeconomic, environmental, ethnic, family, and educational factors influence
an individualâs academic performance and can determine their school performance in mathematics.
Mathematical competence is one of the skills that allow students to build visions of the future from
performance in the present. However, the perception that students have of mathematics, in addition
to the teacherâstudent relationship, the classroom, gender, teachingâlearning, and motivation are
crucial factors for achieving an optimal academic performance and preventing school failure. The aim
of the present study was: (1) to examine which variables of the dimensions âLearning Mathematicsâ
and âSchool Environmentâ significantly contribute to the marks in the second quarter and quantify
their relative importance; (2) to determine the optimal algorithm model for predicting the maximum
gain in studentsâ marks in the second quarter and quantifying it; and (3) to analyze the maximum gain
in terms of gender. A total of 2018 high school students in Melilla were included in this cross-sectional
study. Mathematical learning and the school environment were assessed using a validated 14-item
questionnaire. Gain lift was employed to quantify the improvement in studentsâ performance. The role
of the classroom and teacherâstudent relationship had a greater influence on mathematics scores than
affinity indicators, teaching, study time, teaching resources used, study aids, and motivation
Coins et arrondis en éléments finis - Une approche mathématique des coins et arrondis pour les solutions par éléments finis de l'équation de Laplace
La modĂ©lisation par Ă©lĂ©ments finis d'un objet technique conduit souvent Ă nĂ©gliger certains dĂ©tails de structure. C'est en particulier le cas des arĂȘtes et des coins. Ces points particuliers jouent cependant parfois un rĂŽle physique important : c'est le cas par exemple en Ă©lectrostatique, en raison des effets de pointe. Il est donc important, aprĂšs une rĂ©solution par Ă©lĂ©ments finis, de savoir estimer le champ au voisinage de ces singularitĂ©s, en prenant en compte les rayons de courbure rĂ©els. Nous nous intĂ©ressons ici aux liens qui existent entre la solution singuliĂšre thĂ©orique, la solution numĂ©rique obtenue par Ă©lĂ©ments finis avec un angle vif, et celle qui est obtenue avec un maillage dĂ©crivant un arrondi. Un estimateur non local du champ sur l'arrondi est proposĂ©. Some geometrical details like exact curvatures near edges and corners are often neglected in finite element meshes. Nevertheless they could greatly change the local solutions and the physical behavior (electric arc, ...). Therefore, it could be useful to be able to estimate the real field values near these singular points, using an adequate post-processing, which has to take into account the real curve radii. This paper presents the links between the theoretical singular solution, the numerical solution with a sharp angle, and the solutions with rounded angle. A non-local estimator for the field on the rounded edges and corners is proposed
Aboodh Transform Homotopy Perturbation Method For Solving System Of Nonlinear Partial Differential Equations
In this paper, we apply a new method called Aboodh transform homotopy perturbation method (ATHPM) to solve nonlinear systems of partial differential equations. This method is a combination of the new integral transform âAboodh transformâ and the homotopy perturbation method. This method was found to be more effective and easy to solve linear and nonlinear differential equations. Key word:Aboodh transform Homotopy perturbation method Nonlinear systems of partial differential equation
Technological Factors That Influence the Mathematics Performance of Secondary School Students
Although the value of information and communication technology (ICT) is positive and
its use is widespread, its potential as a teaching tool in mathematics is not optimized and its
methodological integration is rare. In addition, the availability of ICT resources in schools is positively
associated with the academic success of students, and the availability of ICT resources at home is
negatively associated with their success. To determine the relationships among academic performance,
uses, and available ICT resources, a total of 2018 secondary school students participated in the present
study. The uses and available ICT resources, and the learning of mathematics and ICT, were evaluated
using a validated 11-item questionnaire. Statistical analysis reveals that, of the secondary education
levels, the lowest results are observed in the third year. A total of 64% of students a rm that they
use ICT at home to study mathematics. In addition, 33.61% of the students a rm that they use their
mobile phones frequently while studying at home. However, it should be noted that between 23.80%
and 28.44% a rm that they dedicate more than 4 h per day to phone calls. Educational level is a
predictor of academic performance in mathematics associated with studentsâ uses of ICT. The scores
indicate that the computer is generally used for Internet searches, thus, limiting the use of ICT for
educational purposes. Furthermore, there is a di erence regarding gende
Glaucoma among Saudi Arabian population: a scoping review
Despite its high risk of leading to permanent visual dysfunction, glaucoma remains underdiagnosed in primary care settings. About 11% of glaucoma patients in Saudi Arabia end up with bilateral blindness. This scoping review investigates and presents results on the glaucoma profile, including its prevalence, knowledge, attitude, and practice of Saudi Arabians towards the disease. An online search using four databases through online software (www.rayyan.ai) was performed to extract the relevant articles. Out of 76 records, 21 articles were eligible for the analysis. All included studies were published between the years 2014 and 2022. Most studies were in Riyadh city, followed by Jeddah. All participants (n=11 388) were adults >18 years old, and male participants were generally higher than females. The findings showed poor knowledge of glaucoma among the general population, while the knowledge among glaucoma patients was acceptable. The attitude was positive, while the compliance and practice were fair. More educational programs about glaucoma, its risk to the eyes, and the overall quality of life are highly recommended
Association of respiratory symptoms and lung function with occupation in the multinational Burden of Obstructive Lung Disease (BOLD) study
Background
Chronic obstructive pulmonary disease has been associated with exposures in the workplace. We aimed to assess the association of respiratory symptoms and lung function with occupation in the Burden of Obstructive Lung Disease study.
Methods
We analysed cross-sectional data from 28â823 adults (â„40â
years) in 34 countries. We considered 11 occupations and grouped them by likelihood of exposure to organic dusts, inorganic dusts and fumes. The association of chronic cough, chronic phlegm, wheeze, dyspnoea, forced vital capacity (FVC) and forced expiratory volume in 1â
s (FEV1)/FVC with occupation was assessed, per study site, using multivariable regression. These estimates were then meta-analysed. Sensitivity analyses explored differences between sexes and gross national income.
Results
Overall, working in settings with potentially high exposure to dusts or fumes was associated with respiratory symptoms but not lung function differences. The most common occupation was farming. Compared to people not working in any of the 11 considered occupations, those who were farmers for â„20â
years were more likely to have chronic cough (OR 1.52, 95% CI 1.19â1.94), wheeze (OR 1.37, 95% CI 1.16â1.63) and dyspnoea (OR 1.83, 95% CI 1.53â2.20), but not lower FVC (ÎČ=0.02â
L, 95% CI â0.02â0.06â
L) or lower FEV1/FVC (ÎČ=0.04%, 95% CI â0.49â0.58%). Some findings differed by sex and gross national income.
Conclusion
At a population level, the occupational exposures considered in this study do not appear to be major determinants of differences in lung function, although they are associated with more respiratory symptoms. Because not all work settings were included in this study, respiratory surveillance should still be encouraged among high-risk dusty and fume job workers, especially in low- and middle-income countries.publishedVersio
Cohort Profile: Burden of Obstructive Lung Disease (BOLD) study
The Burden of Obstructive Lung Disease (BOLD) study was established to assess the prevalence of chronic airflow obstruction, a key characteristic of chronic obstructive pulmonary disease, and its risk factors in adults (â„40 years) from general populations across the world.
The baseline study was conducted between 2003 and 2016, in 41 sites across Africa, Asia, Europe, North America, the Caribbean and Oceania, and collected high-quality pre- and post-bronchodilator spirometry from 28â828 participants.
The follow-up study was conducted between 2019 and 2021, in 18 sites across Africa, Asia, Europe and the Caribbean. At baseline, there were in these sites 12â502 participants with high-quality spirometry. A total of 6452 were followed up, with 5936 completing the study core questionnaire. Of these, 4044 also provided high-quality pre- and post-bronchodilator spirometry.
On both occasions, the core questionnaire covered information on respiratory symptoms, doctor diagnoses, health care use, medication use and ealth status, as well as potential risk factors. Information on occupation, environmental exposures and diet was also collected
Percepciones del alumnado en el proceso de aprendizaje de las MatemĂĄticas con implementaciĂłn de las TIC: El caso de la Ciudad AutĂłnoma de Melilla
Tesis doctoral inĂ©dita leĂda en la Universidad AutĂłnoma de Madrid, Facultad de FormaciĂłn de Profesorado y EducaciĂłn, Departamento de PedagogĂa. Fecha de lectura: 08-11-2021Esta tesis tiene embargado el acceso al texto completo hasta el 08-05-202
Uses and Resources of Technologies by Mathematics Students Prior to COVID-19
Digital competence in education includes, amongst other things, the ability to create
and manage content and information, mastery of communication tools, and solving technological
problems. The access to information and communication technologies (ICT) for educational purposes
could have affected the academic performance of mathematics students prior to COVID-19. The
objectives were to (1) analyze family and economic factors that could influence the use of ICT for
educational purposes, and (2) determine what attributes of Melillaâs mathematics students could
explain an additional variation in the use of ICT for academic purposes before COVID-19. A total of
2018 students at secondary schools in Melilla were included in this cross-sectional study. A validated
questionnaire with 14 questions regarding ICT and its uses and resources in mathematics learning
was administered to students. Statistical analysis revealed that 63.81% of students used ICT to
study mathematics and 36.19% did not. Of this percentage, 30.22% failed mathematics and 68.43%
reported that ICT does not help them improve their grades. The use of ICT to study mathematics was
influenced by studentsâ perceptions of its usefulness for their academic performance and learning.
We also found an association with educational level and time spent on the Internet