This study investigated the perceptions of English educators and supervisors in Jeddah Governorate regarding the process of teaching English to elementary students.A survey was conducted using a sample size of 94 educ...This study investigated the perceptions of English educators and supervisors in Jeddah Governorate regarding the process of teaching English to elementary students.A survey was conducted using a sample size of 94 educators and 10 supervisors.The data indicate that respondents considered English instruction at the elementary level essential for expanding kids’perspectives,improving academic performance,and promoting international involvement.The main advantages cited are the development of English language skills and the promotion of early education.Although not as easily noticeable,the disadvantages include potential negative impacts on an individual’s proficiency in Arabic and their sense of national identification.The highlighted challenges encompass insufficient teacher training,student reluctance towards English,limited resources,and school disparities.The proposed techniques focused on prioritizing English instructors’training,ensuring the use of appropriate content,utilizing technology,and promoting awareness of students and educators.The current research found different obstacles in teaching English at elementary stages.To overcome these obstacles,it will be essential to enhance teacher competencies,develop efficient teaching methods,get the backing of stakeholders,assign adequate resources,and carry out continuous evaluations.Further research can also contribute to a better understanding of how early English learning impacts on Arabic identity and proficiency.展开更多
Present studies in physics assume that elementary particles are the building blocks of all matter, and that they are zero-dimensional objects which do not occupy space. The new I-Theory predicts that elementary partic...Present studies in physics assume that elementary particles are the building blocks of all matter, and that they are zero-dimensional objects which do not occupy space. The new I-Theory predicts that elementary particles do indeed have a substructure, three dimensions, and occupy space, being composed of fundamental particles called I-particles. In this article we identify the substructural pattern of elementary particles and define the quanta of energy that form each elementary particle. We demonstrate that the substructure comprises two classes of quanta which we call “attraction quanta” and “repulsion quanta”. We create a model that defines the rest-mass energy of each elementary particle and can predict new particles. Lastly, in order to incorporate this knowledge into the contemporary models of science, a revised periodic table is proposed.展开更多
The expanding role of the Chinese language in international communications has become increasingly prominent as China’s comprehensive national power continues to grow,leading to a significant rise in the number of Ch...The expanding role of the Chinese language in international communications has become increasingly prominent as China’s comprehensive national power continues to grow,leading to a significant rise in the number of Chinese language learners.Since online teaching is not limited by time and space,its application is widespread.For beginners in the Chinese language,the Chinese characters are both a priority and a challenge.The“Chinese Character Classification,”also known as the“Six Writings,”is the earliest systematic theory of Chinese character structures,and teaching Chinese characters in categories based on the“Chinese Character Classification”is a method that fits the cognition of beginners.In order to teach Chinese characters in a targeted approach,based on the collection and analysis of the common errors of Chinese characters among beginners,(1)this paper proposes that(a)the intuitive method can be applied to teach pictographic characters,indicative characters,and associative compound characters in online teaching;(b)the inductive-deductive method of“basic characters to new characters”can be applied for the teaching of pictophonetic characters and associative compound characters;(c)the learning of character patterns should be approached in a whole-part-whole process,while importance should be attached to the suggestion of the frequency effect with a view to facilitating the online learning of Chinese characters for beginners.The aim of this paper is to provide some practical implications for the online teaching of Chinese characters to foreigners.展开更多
The radiation fields generated when a charged particle is incident on or moving away from a perfectly conducting plane are obtained. These fields are known in the literature as transition radiation. The field equation...The radiation fields generated when a charged particle is incident on or moving away from a perfectly conducting plane are obtained. These fields are known in the literature as transition radiation. The field equations derived thus are used to evaluate the energy, momentum and the action associated with the radiation. The results show that for a charged particle moving with speed ν, the longitudinal momentum associated with the transition radiation is approximately equal to ΔU/c for values of ?1- ν/c smaller than about 10-3 where ΔU is the total radiated energy dissipated during the interaction and cis the speed of light in free space. The action of the radiation, defined as the product of the total energy dissipated and the duration of the emission, increases as 1- ν/c decreases and, for an electron, it becomes equal to h/4π when ν = c - νm where νm is the speed pertinent to the lowest possible momentum associated with a particle confined inside the universe and?h is the Planck constant. Combining these results with Heisenberg’s uncertainty principle, an expression that predicts the value of the elementary charge is derived.展开更多
Smoking is a major health problem in many countries. It has been reported on the effects of education on youth with a reduced smoking rate and developed awareness of avoiding smoking verified as a result of educationa...Smoking is a major health problem in many countries. It has been reported on the effects of education on youth with a reduced smoking rate and developed awareness of avoiding smoking verified as a result of educational intervention. The aim of this study was to verify the relationship between sex, school age, and family smoking and the effectiveness of smoking prevention education program (SPEP) as factors that impact the effectiveness of SPEP in elementary school and junior high school students. The participants in this survey were 6676 students, who attended elementary and junior high schools in Tokushima Prefecture between 2011 and 2015, and attended the SPEP. As factors that influence the effectiveness of the SPEP, we examined school types, sex, smokers in the family. Participants were asked the following questions before and after the SPEP to measure awareness of and attitudes toward smoking: “intention not to smoke cigarettes as adults”, “intention to refuse cigarettes when offered”, “attitude of staying away from smokers”, and “desire that their family will not smoke”. The number of survey collected was 6676, with effective responses from 5974 (90%). Among the 5974, there were 2963 (50%) males and 3011 (50%) females, 5106 elementary school students (86%), and 868 junior high school students (15%). In the case of smoker mother, it was difficult to improve these children’s “intention not to smoke as adults”, “intention to refuse cigarettes when offered”, and smoker father, it was difficult to improve these children’s “attitude of staying away from smokers”, and “desire that their family will not smoke”. Especially, in the case of smoker parents, it was particularly difficult for the SPEP to be effective in improving awareness of and attitudes toward smoking among elementary and junior high school students.展开更多
The author presents a new approach which is used to solve an important Diophantine problem. An elementary argument is used to furnish another fully transparent proof of Fermat’s Last Theorem. This was first stated by...The author presents a new approach which is used to solve an important Diophantine problem. An elementary argument is used to furnish another fully transparent proof of Fermat’s Last Theorem. This was first stated by Pierre de Fermat in the seventeenth century. It is widely regarded that no elementary proof of this theorem exists. The author provides evidence to dispel this belief.展开更多
Teachers voluntarily devote a lot of time to their vocational activates. This can lead to workaholism and may result in stress and job burnout. The main objective of the current study is to examine the relationship of...Teachers voluntarily devote a lot of time to their vocational activates. This can lead to workaholism and may result in stress and job burnout. The main objective of the current study is to examine the relationship of workaholism with stress and job burnout of elementary school teachers in Zahedan. This is a descriptive-correlational study. The sample includes 350 elementary school teachers in Zahedan whom are selected through applying stratified random sampling method and are examined using questionnaires on workaholism, occupational stress, and job burnout. To analyze the obtained data, correlation coefficient and simultaneous multiple regression analysis are applied using SPSS21. Teachers’ mean scores on workaholism, stress and job burnout are higher than the considered theoretical mean. Workaholism and its components (feeling of being driven to work, work involvement, and work enjoyment) are significantly and positively related to job burnout and occupational stress (p ). The results of simultaneous multiple regression analysis indicate that components of workaholism can predict teachers’ occupational stress and job burnout (p ). Considering the results, holding training courses for teachers to become familiar with the phenomena of workaholism, stress, and job burnout, individual and organizational outcomes, methods of dealing with them and managing them effectively is highly recommended.展开更多
Emergencies of epistaxis in students caused by environmental pollution have rarely been reported to date.This study aimed to explore the cause of an emergency of epistaxis in elementary students by using a field epide...Emergencies of epistaxis in students caused by environmental pollution have rarely been reported to date.This study aimed to explore the cause of an emergency of epistaxis in elementary students by using a field epidemiological investigation.Twenty-two epistaxis cases from a single school with differences in gender,age,and classroom,were diagnosed within a period of 7 days.The展开更多
It is proposed that the observed Higgs Boson at the LHC is the Standard Model Higgs boson that adopts the existence of the hidden lepton condensate. The hidden lepton is in the forbidden lepton family, outside of the ...It is proposed that the observed Higgs Boson at the LHC is the Standard Model Higgs boson that adopts the existence of the hidden lepton condensate. The hidden lepton is in the forbidden lepton family, outside of the three lepton families of the Standard Model. Being forbidden, a single hidden lepton cannot exist alone;so it must exist in the lepton condensate as a composite of μ’ and μ’± hidden leptons and their corresponding antileptons. The calculated average mass of the hidden lepton condensate is 128.8 GeV in good agreements with the observed 125 or 126 GeV. The masses of the hidden lepton condensate and all elementary particles including leptons, quarks, and gauge bosons are derived from the periodic system of elementary particles. The calculated constituent masses are in good agreement with the observed values by using only four known constants: the number of the extra spatial dimensions in the eleven-dimensional membrane, the mass of electron, the mass of Z boson, and the fine structure constant.展开更多
This article presents the hypothesis that the vacuum is endowed with a quantum structure;the vacuum particles would be Friedmann-Planck micro-universes. For this, the article introduces a quantization of a closed Frie...This article presents the hypothesis that the vacuum is endowed with a quantum structure;the vacuum particles would be Friedmann-Planck micro-universes. For this, the article introduces a quantization of a closed Friedmann universe, then a quantization of the photon spheres filling this universe. This approach gives a numerical value consistent with cosmological measurements for the current dark energy density of our Universe. Next, the article takes the content of a model published in Physics Essays in 2013 [<a href="#ref1" target="_blank">1</a>], assuming that elementary particles are Schwarzschild photon spheres;these could be derived from the Friedmann photon spheres composing the vacuum particles. It is further recalled that the model presents a unified structure of elementary particles and allows us to calculate the value of the elementary electric charge as well as the mass of the elementary particles.展开更多
We justify and extend the standard model of elementary particle physics by generalizing the theory of relativity and quantum mechanics. The usual assumption that space and time are continuous implies, indeed, that it ...We justify and extend the standard model of elementary particle physics by generalizing the theory of relativity and quantum mechanics. The usual assumption that space and time are continuous implies, indeed, that it should be possible to measure arbitrarily small intervals of space and time, but we ignore if that is true or not. It is thus more realistic to consider an extremely small “quantum of length” of yet unknown value <em>a</em>. It is only required to be a universal constant for all inertial frames, like<em> c</em> and <em>h</em>. This yields a logically consistent theory and accounts for elementary particles by means of four new quantum numbers. They define “particle states” in terms of modulations of wave functions at the smallest possible scale in space-time. The resulting classification of elementary particles accounts also for dark matter. Antiparticles are redefined, without needing negative energy states and recently observed “anomalies” can be explained.展开更多
The underlying rules for a natural system describing cellular automata are simple, but produce highly complex behavior. A mathematical basis for the spectra of discrete coherent and non-coherent electromagnetic (EM) f...The underlying rules for a natural system describing cellular automata are simple, but produce highly complex behavior. A mathematical basis for the spectra of discrete coherent and non-coherent electromagnetic (EM) frequencies was derived, in which the algorithm exhibits an information distribution according to ratios of 2:3 in 1:2 at a semi-harmonic manner. This generalized music (GM) model shows that energy both in elementary particles and animate systems is semi-harmonic, quantized and discrete. A support for an ontological basis of the Standard Model was found, and indicates that the GM-model underlies the quantum field theory of subatomic particles. The present theory combines quantum mechanics and classical periodic systems, obeys to locality and solves the “hidden variable theory of Bohm”. The discovered pattern of electromagnetic field eigenvalues, within a broad range of discrete frequencies, points at a de Broglie/Bohm type of causal interpretation of quantum mechanics, implying an integral resonant pilot-wave/particle modality. The model has been substantiated by a meta-analysis of measured discrete energies of: 37 different Elementary Particles, 45 different EPR-measurements, zero-point energies of elements and about 450 electromagnetic wave frequencies of cells with a mean accuracy of 0.58%. It has been shown that the GM-scale is frequency-locked with zero-point oscillations, and thereby evidently implies involvement of entanglement.展开更多
We introduce elementary and Φ-free Lie triple systems and study the properties of these systems.In particular,structures of subsystems of an elementary Lie triple system and a class of Φ-free Lie triple systems are ...We introduce elementary and Φ-free Lie triple systems and study the properties of these systems.In particular,structures of subsystems of an elementary Lie triple system and a class of Φ-free Lie triple systems are investigated.展开更多
Introduction: Anthropometric indices are used for assessing the nutrition status of people and societies. The indices determine the growth of the child’s nutrition status, his socioeconomic status and his quality of ...Introduction: Anthropometric indices are used for assessing the nutrition status of people and societies. The indices determine the growth of the child’s nutrition status, his socioeconomic status and his quality of life. This research aims to study the anthropometric indices of elementary school children in the Iranian city of Piranshahr using the Body Mass Index (BMI) and waist circumference in the first six months of 2011. Methods: In this descriptive-analytical cross-sectional study, 1803 students aged between 7 and 11 in Piranshahr were studied. Multi-stage cluster sampling was used. The research setting was an elementary school in Piranshahr. Demographic data were collected through interviews and record in questionnaires. A Secca stadiometer was used to measure the height of each student standing without shoes (accuracy of 0.1 centimeter). The weight was measured using a spring scale with an accuracy of 0.1 kilogram with the least possible clothes on. The weight was divided by the square of height (square meter) to calculate BMI. To determine overweight and obesity, BMI percentiles of Center for Disease Control (CDC) were used. In order to use appropriate tests, the normality and equality of variances were measured by Leven and K-S tests, respectively. Results: The study found that 231 children (12.8%) were at risk of overweight and 96 children (5.3%) were overweight. Conclusion: There was a meaningful difference between boys and girls in terms of nutrition status of BMI, father’s higher education level, shortness, abdominal obesity and family history of obesity, and father’s jobs展开更多
Background: The purpose of this study was to explore the feasibility and understand the potential impact on elementary students’ perceptions of, and intentions related to, healthy eating and physical activity when th...Background: The purpose of this study was to explore the feasibility and understand the potential impact on elementary students’ perceptions of, and intentions related to, healthy eating and physical activity when their classroom teacher sets and shares goals related to these health behaviors. Methods: Participants in this study included 16 teachers and 229 students of grades 3 - 6 at a large elementary school in the Western United States. Participating students were surveyed before and after a six-week intervention conducted by classroom teachers that consisted of a weekly displaying of Teacher Goal Boards in a prominent classroom location and sharing of goals set for the week. Teacher reports of the previous week’s goals occurred each Monday prior to sharing and posting of new goals for the new week. Results: Respondents reported significantly higher post-test values for over half of pre-post comparisons. Respondents were more likely to intend to be physically active (post = 52.6% vs. pre = 39.0%, p = 0.003), to eat nutritious foods (52.0% vs. 36.4%, p = 0.001), and to maintain a healthy body weight (62.8% vs. 52.2%, p = 0.022). Similar results were found for summary measures. Intention to be physically active, to eat healthy, to maintain a healthy weight, as well as descriptive norms for physical activity and perception and value of personal health behaviors were all significantly higher at post-test. Discussion: This study and its findings are significant because teacher participants were able to significantly and positively impact on students’ behavioral intent, subjective norms, and perception and value of personal health behaviors amongst students without spending additional time on formal health promotion and education instruction. Conclusion: Schools should incentivize and encourage faculty and staff to engage in a variety of health behaviors to improve both personal health outcomes and role model health behaviors for students.展开更多
The Tarski theorems, proved by Myasnikov and Kharlampovich and inde-pendently by Sela say that all nonabelian free groups satisfy the same first-order or elementary theory. Kharlampovich and Myasnikov also prove that ...The Tarski theorems, proved by Myasnikov and Kharlampovich and inde-pendently by Sela say that all nonabelian free groups satisfy the same first-order or elementary theory. Kharlampovich and Myasnikov also prove that the elementary theory of free groups is decidable. For a group ring they have proved that the first-order theory (in the language of ring theory) is not decidable and have studied equations over group rings, especially for torsion-free hyperbolic groups. In this note we examine and survey extensions of Tarksi-like results to the collection of group rings and examine relationships between the universal and elementary theories of the corresponding groups and rings and the corresponding universal theory of the formed group ring. To accomplish this we introduce different first-order languages with equality whose model classes are respectively groups, rings and group rings. We prove that if R[G] is elementarily equivalent to S[H] then simultaneously the group G is elementarily equivalent to the group H and the ring R is elementarily equivalent to the ring S with respect to the appropriate languages. Further if G is universally equivalent to a nonabelian free group F and R is universally equivalent to the integers Z then R[G] is universally equivalent to Z[F] again with respect to an ap-propriate language.展开更多
The norm of an elementary operator has been studied by many mathematicians. Varied results have been established especially on the lower bound of this norm. Here, we attempt the same problem for finite dimensional ope...The norm of an elementary operator has been studied by many mathematicians. Varied results have been established especially on the lower bound of this norm. Here, we attempt the same problem for finite dimensional operators.展开更多
The purpose of this research was to reveal the relationship among students’ sleep quality, body temperature and lifestyle habits, growth and their physical strength. Subjects were 226 elementary school students from ...The purpose of this research was to reveal the relationship among students’ sleep quality, body temperature and lifestyle habits, growth and their physical strength. Subjects were 226 elementary school students from first grade to sixth grade, in four elementary schools at the Chugoku and Shikoku areas in Japan. The study period was from October 2014 to December 2015. Evaluation items used were the PSQI (Pittsburgh Sleep Quality Index, Japanese version), body temperature, lifestyle habits, and national physical fitness test. Relationships were analyzed using Pearson’s chi square test, Fisher’s exact test, residual analysis, φ-coefficient, odds ratio and 95% confidence interval, and Spearman’s rank correlation coefficient using SPSS 20 (SPSS Inc., Chicago, IL, USA). The level of statistical significance was set at 0.05. The number of students with good sleep quality who showed less than six-point score at the PSQI was 218 (96.5%), and with poor sleep quality were eight students (3.5%). Especially, “sometimes do not eat breakfast” and “had difficulty sleeping” were independent risk factors for negative arousal. In the lifestyle habits, it was observed significantly that students who had a good sleep ate breakfast every morning. The significant positive correlation was between sleep quality and the time spent watching television, the age and the time using the internet. The significant negative correlation was observed between length of sleep, time spent watching television, using internet and playing games, body temperature and age. The students with temperature of less than 36°C were 35 (15.5%). Those students did not eat breakfast every morning, or ate school lunch. This study revealed that sleep condition and temperature of elementary school students were related to eating breakfast and using media time. It was considered very important to educate the students and their guardians that eating breakfast is a necessity and adjusting the use of multimedia, so that students can acquire desirable lifestyle habits.展开更多
The purpose of this study is to differentiate the gender into males and females based on prior research that children prefer different types of play depending on their gender,and to see what the relationship between t...The purpose of this study is to differentiate the gender into males and females based on prior research that children prefer different types of play depending on their gender,and to see what the relationship between their self-esteem and preferred types of play is.Random stratified method was used to collect study participants for this study.Elementary school students in Incheon Metropolitan City,Republic of Korea,were set up as a population,the city was divided into six areas in a similar area,and each school was numbered after identifying local elementary schools.A total of six schools were selected for each region by making random checks.A total of 18 classes were selected for each of the four,five,and six grades.A total of 450 questionnaires were distributed,but 381 of them were used for statistical analysis,except for 69 that were judged to have been poorly response.There were 215 male,166 female,151 in fourth grade,109 in fifth grade,and 121 in sixth grade.There are two questionnaires used in this study.First,to measure self-esteem,Rosengerg’s 10-item Self Esteem Scale was used to assess self-esteem.The scale,which provides a convenient measure of global attitudes about the self,has five negatively worded items and five positively worded items.This scale is one of the most widely used measures of self-esteem and has displayed good reliability and validity.Cronbach’s a showed 0.859.Second,to find out the preference for play types,we used those produced by Choi and Lee based on four types of play suggested by Roger Caillois.The questionnaire consists of four sub-variables:competition(Agon),chance(Alea),simulation(Mimicry)and vertigo(Ilinx).The Crombach’s a values are 0.705,0.694,0.786,and 0.722,respectively.The class teacher of the selected school was contacted and explained the purpose of the study and asked for consent.On the measurement date,we visited the class and conducted the measurement.Before measurement,we informed the purpose of the study again and asked for consent.The self-reported method was used to respond,and the measurement time was about 10 minutes.The responses were coded using the SPSS(win)15.0 program and frequency analysis was performed to characterize the data.The independent t-test was carried out to see if there was a difference between self-esteem and preferred types of play by gender.Correlation analysis was performed to see how self-esteem relates to the type of preferred play.All statistical significance levels are set as p<0.05.Children’s self-esteem does not differ depending on their gender.And it turned out that boys preferred competition,and girls preferred simulation,and chance and vertigo did not differ depending on gender.In male,a correlation between self-esteem and preference for play types has resulted in statistically significant correlation between self-esteem and competition,chance,and vertigo.In female,a correlation between self-esteem and preference for play types was performed in vertigo,where self-esteem was statistically significant.展开更多
In a recent paper, we have studied the nature of the electromagnetic energy radiated over a single period of oscillation by an antenna working in frequency domain under ideal conditions and without losses when the osc...In a recent paper, we have studied the nature of the electromagnetic energy radiated over a single period of oscillation by an antenna working in frequency domain under ideal conditions and without losses when the oscillating charge in the antenna is reduced to the elementary charge. Here we extend and expand that study. The energy radiated by an oscillating current in an antenna occurs in bursts of duration T/2, where T is the period of oscillation. The results obtained here, based purely on classical electrodynamics, can be summarized by the inequality U ≥hv→q0 ≥e where U is the energy radiated in a single burst of duration T/2, h is the Planck constant, ν is the frequency of oscillation and q0 is the magnitude of the oscillating charge associated with the current. The condition U=hv→q0=e is obtained when the length of the antenna is equal to the ultimate Hubble radius of the universe (i.e. the maximum value of the antenna length allowed by nature) and the wavelength is equal to the Bohr radius (resulting from the smallest possible radius of the conductor allowed by nature). The ultimate Hubble radius is directly related to the vacuum energy density. The inequality obtained here is in general agreement with the one obtained in the previous study. One novel feature of this extended analysis is the discovery of an expression, in terms of the elementary charge and other atomic constants, for the vacuum energy density of the universe. This expression predicts the vacuum energy density to be about 4×10-10?J/m3 which is in reasonable agreement with the measured value of 6×10-10 J/m3.展开更多
文摘This study investigated the perceptions of English educators and supervisors in Jeddah Governorate regarding the process of teaching English to elementary students.A survey was conducted using a sample size of 94 educators and 10 supervisors.The data indicate that respondents considered English instruction at the elementary level essential for expanding kids’perspectives,improving academic performance,and promoting international involvement.The main advantages cited are the development of English language skills and the promotion of early education.Although not as easily noticeable,the disadvantages include potential negative impacts on an individual’s proficiency in Arabic and their sense of national identification.The highlighted challenges encompass insufficient teacher training,student reluctance towards English,limited resources,and school disparities.The proposed techniques focused on prioritizing English instructors’training,ensuring the use of appropriate content,utilizing technology,and promoting awareness of students and educators.The current research found different obstacles in teaching English at elementary stages.To overcome these obstacles,it will be essential to enhance teacher competencies,develop efficient teaching methods,get the backing of stakeholders,assign adequate resources,and carry out continuous evaluations.Further research can also contribute to a better understanding of how early English learning impacts on Arabic identity and proficiency.
文摘Present studies in physics assume that elementary particles are the building blocks of all matter, and that they are zero-dimensional objects which do not occupy space. The new I-Theory predicts that elementary particles do indeed have a substructure, three dimensions, and occupy space, being composed of fundamental particles called I-particles. In this article we identify the substructural pattern of elementary particles and define the quanta of energy that form each elementary particle. We demonstrate that the substructure comprises two classes of quanta which we call “attraction quanta” and “repulsion quanta”. We create a model that defines the rest-mass energy of each elementary particle and can predict new particles. Lastly, in order to incorporate this knowledge into the contemporary models of science, a revised periodic table is proposed.
基金an outcome of the project of Sichuan University,“A Preliminary Study on Online Chinese Character Teaching Strategies for Teaching Chinese as a Foreign Language During the COVID-19 Pandemic,”Project No.2022 Self-Research-Overseas 008。
文摘The expanding role of the Chinese language in international communications has become increasingly prominent as China’s comprehensive national power continues to grow,leading to a significant rise in the number of Chinese language learners.Since online teaching is not limited by time and space,its application is widespread.For beginners in the Chinese language,the Chinese characters are both a priority and a challenge.The“Chinese Character Classification,”also known as the“Six Writings,”is the earliest systematic theory of Chinese character structures,and teaching Chinese characters in categories based on the“Chinese Character Classification”is a method that fits the cognition of beginners.In order to teach Chinese characters in a targeted approach,based on the collection and analysis of the common errors of Chinese characters among beginners,(1)this paper proposes that(a)the intuitive method can be applied to teach pictographic characters,indicative characters,and associative compound characters in online teaching;(b)the inductive-deductive method of“basic characters to new characters”can be applied for the teaching of pictophonetic characters and associative compound characters;(c)the learning of character patterns should be approached in a whole-part-whole process,while importance should be attached to the suggestion of the frequency effect with a view to facilitating the online learning of Chinese characters for beginners.The aim of this paper is to provide some practical implications for the online teaching of Chinese characters to foreigners.
文摘The radiation fields generated when a charged particle is incident on or moving away from a perfectly conducting plane are obtained. These fields are known in the literature as transition radiation. The field equations derived thus are used to evaluate the energy, momentum and the action associated with the radiation. The results show that for a charged particle moving with speed ν, the longitudinal momentum associated with the transition radiation is approximately equal to ΔU/c for values of ?1- ν/c smaller than about 10-3 where ΔU is the total radiated energy dissipated during the interaction and cis the speed of light in free space. The action of the radiation, defined as the product of the total energy dissipated and the duration of the emission, increases as 1- ν/c decreases and, for an electron, it becomes equal to h/4π when ν = c - νm where νm is the speed pertinent to the lowest possible momentum associated with a particle confined inside the universe and?h is the Planck constant. Combining these results with Heisenberg’s uncertainty principle, an expression that predicts the value of the elementary charge is derived.
文摘Smoking is a major health problem in many countries. It has been reported on the effects of education on youth with a reduced smoking rate and developed awareness of avoiding smoking verified as a result of educational intervention. The aim of this study was to verify the relationship between sex, school age, and family smoking and the effectiveness of smoking prevention education program (SPEP) as factors that impact the effectiveness of SPEP in elementary school and junior high school students. The participants in this survey were 6676 students, who attended elementary and junior high schools in Tokushima Prefecture between 2011 and 2015, and attended the SPEP. As factors that influence the effectiveness of the SPEP, we examined school types, sex, smokers in the family. Participants were asked the following questions before and after the SPEP to measure awareness of and attitudes toward smoking: “intention not to smoke cigarettes as adults”, “intention to refuse cigarettes when offered”, “attitude of staying away from smokers”, and “desire that their family will not smoke”. The number of survey collected was 6676, with effective responses from 5974 (90%). Among the 5974, there were 2963 (50%) males and 3011 (50%) females, 5106 elementary school students (86%), and 868 junior high school students (15%). In the case of smoker mother, it was difficult to improve these children’s “intention not to smoke as adults”, “intention to refuse cigarettes when offered”, and smoker father, it was difficult to improve these children’s “attitude of staying away from smokers”, and “desire that their family will not smoke”. Especially, in the case of smoker parents, it was particularly difficult for the SPEP to be effective in improving awareness of and attitudes toward smoking among elementary and junior high school students.
文摘The author presents a new approach which is used to solve an important Diophantine problem. An elementary argument is used to furnish another fully transparent proof of Fermat’s Last Theorem. This was first stated by Pierre de Fermat in the seventeenth century. It is widely regarded that no elementary proof of this theorem exists. The author provides evidence to dispel this belief.
文摘Teachers voluntarily devote a lot of time to their vocational activates. This can lead to workaholism and may result in stress and job burnout. The main objective of the current study is to examine the relationship of workaholism with stress and job burnout of elementary school teachers in Zahedan. This is a descriptive-correlational study. The sample includes 350 elementary school teachers in Zahedan whom are selected through applying stratified random sampling method and are examined using questionnaires on workaholism, occupational stress, and job burnout. To analyze the obtained data, correlation coefficient and simultaneous multiple regression analysis are applied using SPSS21. Teachers’ mean scores on workaholism, stress and job burnout are higher than the considered theoretical mean. Workaholism and its components (feeling of being driven to work, work involvement, and work enjoyment) are significantly and positively related to job burnout and occupational stress (p ). The results of simultaneous multiple regression analysis indicate that components of workaholism can predict teachers’ occupational stress and job burnout (p ). Considering the results, holding training courses for teachers to become familiar with the phenomena of workaholism, stress, and job burnout, individual and organizational outcomes, methods of dealing with them and managing them effectively is highly recommended.
基金sponsored by Zhejiang Provincial Program for the Cultivation of High-Level Innovative Health Talentsin part supported by the Natural Science Foundation of China(81472961)the Co-constructed Projects by the National Health and Family Planning Commission of China,and the Health Bureau of Zhejiang Province(No.WSK2014-2-004)
文摘Emergencies of epistaxis in students caused by environmental pollution have rarely been reported to date.This study aimed to explore the cause of an emergency of epistaxis in elementary students by using a field epidemiological investigation.Twenty-two epistaxis cases from a single school with differences in gender,age,and classroom,were diagnosed within a period of 7 days.The
文摘It is proposed that the observed Higgs Boson at the LHC is the Standard Model Higgs boson that adopts the existence of the hidden lepton condensate. The hidden lepton is in the forbidden lepton family, outside of the three lepton families of the Standard Model. Being forbidden, a single hidden lepton cannot exist alone;so it must exist in the lepton condensate as a composite of μ’ and μ’± hidden leptons and their corresponding antileptons. The calculated average mass of the hidden lepton condensate is 128.8 GeV in good agreements with the observed 125 or 126 GeV. The masses of the hidden lepton condensate and all elementary particles including leptons, quarks, and gauge bosons are derived from the periodic system of elementary particles. The calculated constituent masses are in good agreement with the observed values by using only four known constants: the number of the extra spatial dimensions in the eleven-dimensional membrane, the mass of electron, the mass of Z boson, and the fine structure constant.
文摘This article presents the hypothesis that the vacuum is endowed with a quantum structure;the vacuum particles would be Friedmann-Planck micro-universes. For this, the article introduces a quantization of a closed Friedmann universe, then a quantization of the photon spheres filling this universe. This approach gives a numerical value consistent with cosmological measurements for the current dark energy density of our Universe. Next, the article takes the content of a model published in Physics Essays in 2013 [<a href="#ref1" target="_blank">1</a>], assuming that elementary particles are Schwarzschild photon spheres;these could be derived from the Friedmann photon spheres composing the vacuum particles. It is further recalled that the model presents a unified structure of elementary particles and allows us to calculate the value of the elementary electric charge as well as the mass of the elementary particles.
文摘We justify and extend the standard model of elementary particle physics by generalizing the theory of relativity and quantum mechanics. The usual assumption that space and time are continuous implies, indeed, that it should be possible to measure arbitrarily small intervals of space and time, but we ignore if that is true or not. It is thus more realistic to consider an extremely small “quantum of length” of yet unknown value <em>a</em>. It is only required to be a universal constant for all inertial frames, like<em> c</em> and <em>h</em>. This yields a logically consistent theory and accounts for elementary particles by means of four new quantum numbers. They define “particle states” in terms of modulations of wave functions at the smallest possible scale in space-time. The resulting classification of elementary particles accounts also for dark matter. Antiparticles are redefined, without needing negative energy states and recently observed “anomalies” can be explained.
文摘The underlying rules for a natural system describing cellular automata are simple, but produce highly complex behavior. A mathematical basis for the spectra of discrete coherent and non-coherent electromagnetic (EM) frequencies was derived, in which the algorithm exhibits an information distribution according to ratios of 2:3 in 1:2 at a semi-harmonic manner. This generalized music (GM) model shows that energy both in elementary particles and animate systems is semi-harmonic, quantized and discrete. A support for an ontological basis of the Standard Model was found, and indicates that the GM-model underlies the quantum field theory of subatomic particles. The present theory combines quantum mechanics and classical periodic systems, obeys to locality and solves the “hidden variable theory of Bohm”. The discovered pattern of electromagnetic field eigenvalues, within a broad range of discrete frequencies, points at a de Broglie/Bohm type of causal interpretation of quantum mechanics, implying an integral resonant pilot-wave/particle modality. The model has been substantiated by a meta-analysis of measured discrete energies of: 37 different Elementary Particles, 45 different EPR-measurements, zero-point energies of elements and about 450 electromagnetic wave frequencies of cells with a mean accuracy of 0.58%. It has been shown that the GM-scale is frequency-locked with zero-point oscillations, and thereby evidently implies involvement of entanglement.
基金supported in part by the National Natural Science Foundation of China(10871192)NSF(A2010000194) of Hebei Province,China
文摘We introduce elementary and Φ-free Lie triple systems and study the properties of these systems.In particular,structures of subsystems of an elementary Lie triple system and a class of Φ-free Lie triple systems are investigated.
文摘Introduction: Anthropometric indices are used for assessing the nutrition status of people and societies. The indices determine the growth of the child’s nutrition status, his socioeconomic status and his quality of life. This research aims to study the anthropometric indices of elementary school children in the Iranian city of Piranshahr using the Body Mass Index (BMI) and waist circumference in the first six months of 2011. Methods: In this descriptive-analytical cross-sectional study, 1803 students aged between 7 and 11 in Piranshahr were studied. Multi-stage cluster sampling was used. The research setting was an elementary school in Piranshahr. Demographic data were collected through interviews and record in questionnaires. A Secca stadiometer was used to measure the height of each student standing without shoes (accuracy of 0.1 centimeter). The weight was measured using a spring scale with an accuracy of 0.1 kilogram with the least possible clothes on. The weight was divided by the square of height (square meter) to calculate BMI. To determine overweight and obesity, BMI percentiles of Center for Disease Control (CDC) were used. In order to use appropriate tests, the normality and equality of variances were measured by Leven and K-S tests, respectively. Results: The study found that 231 children (12.8%) were at risk of overweight and 96 children (5.3%) were overweight. Conclusion: There was a meaningful difference between boys and girls in terms of nutrition status of BMI, father’s higher education level, shortness, abdominal obesity and family history of obesity, and father’s jobs
文摘Background: The purpose of this study was to explore the feasibility and understand the potential impact on elementary students’ perceptions of, and intentions related to, healthy eating and physical activity when their classroom teacher sets and shares goals related to these health behaviors. Methods: Participants in this study included 16 teachers and 229 students of grades 3 - 6 at a large elementary school in the Western United States. Participating students were surveyed before and after a six-week intervention conducted by classroom teachers that consisted of a weekly displaying of Teacher Goal Boards in a prominent classroom location and sharing of goals set for the week. Teacher reports of the previous week’s goals occurred each Monday prior to sharing and posting of new goals for the new week. Results: Respondents reported significantly higher post-test values for over half of pre-post comparisons. Respondents were more likely to intend to be physically active (post = 52.6% vs. pre = 39.0%, p = 0.003), to eat nutritious foods (52.0% vs. 36.4%, p = 0.001), and to maintain a healthy body weight (62.8% vs. 52.2%, p = 0.022). Similar results were found for summary measures. Intention to be physically active, to eat healthy, to maintain a healthy weight, as well as descriptive norms for physical activity and perception and value of personal health behaviors were all significantly higher at post-test. Discussion: This study and its findings are significant because teacher participants were able to significantly and positively impact on students’ behavioral intent, subjective norms, and perception and value of personal health behaviors amongst students without spending additional time on formal health promotion and education instruction. Conclusion: Schools should incentivize and encourage faculty and staff to engage in a variety of health behaviors to improve both personal health outcomes and role model health behaviors for students.
文摘The Tarski theorems, proved by Myasnikov and Kharlampovich and inde-pendently by Sela say that all nonabelian free groups satisfy the same first-order or elementary theory. Kharlampovich and Myasnikov also prove that the elementary theory of free groups is decidable. For a group ring they have proved that the first-order theory (in the language of ring theory) is not decidable and have studied equations over group rings, especially for torsion-free hyperbolic groups. In this note we examine and survey extensions of Tarksi-like results to the collection of group rings and examine relationships between the universal and elementary theories of the corresponding groups and rings and the corresponding universal theory of the formed group ring. To accomplish this we introduce different first-order languages with equality whose model classes are respectively groups, rings and group rings. We prove that if R[G] is elementarily equivalent to S[H] then simultaneously the group G is elementarily equivalent to the group H and the ring R is elementarily equivalent to the ring S with respect to the appropriate languages. Further if G is universally equivalent to a nonabelian free group F and R is universally equivalent to the integers Z then R[G] is universally equivalent to Z[F] again with respect to an ap-propriate language.
文摘The norm of an elementary operator has been studied by many mathematicians. Varied results have been established especially on the lower bound of this norm. Here, we attempt the same problem for finite dimensional operators.
文摘The purpose of this research was to reveal the relationship among students’ sleep quality, body temperature and lifestyle habits, growth and their physical strength. Subjects were 226 elementary school students from first grade to sixth grade, in four elementary schools at the Chugoku and Shikoku areas in Japan. The study period was from October 2014 to December 2015. Evaluation items used were the PSQI (Pittsburgh Sleep Quality Index, Japanese version), body temperature, lifestyle habits, and national physical fitness test. Relationships were analyzed using Pearson’s chi square test, Fisher’s exact test, residual analysis, φ-coefficient, odds ratio and 95% confidence interval, and Spearman’s rank correlation coefficient using SPSS 20 (SPSS Inc., Chicago, IL, USA). The level of statistical significance was set at 0.05. The number of students with good sleep quality who showed less than six-point score at the PSQI was 218 (96.5%), and with poor sleep quality were eight students (3.5%). Especially, “sometimes do not eat breakfast” and “had difficulty sleeping” were independent risk factors for negative arousal. In the lifestyle habits, it was observed significantly that students who had a good sleep ate breakfast every morning. The significant positive correlation was between sleep quality and the time spent watching television, the age and the time using the internet. The significant negative correlation was observed between length of sleep, time spent watching television, using internet and playing games, body temperature and age. The students with temperature of less than 36°C were 35 (15.5%). Those students did not eat breakfast every morning, or ate school lunch. This study revealed that sleep condition and temperature of elementary school students were related to eating breakfast and using media time. It was considered very important to educate the students and their guardians that eating breakfast is a necessity and adjusting the use of multimedia, so that students can acquire desirable lifestyle habits.
文摘The purpose of this study is to differentiate the gender into males and females based on prior research that children prefer different types of play depending on their gender,and to see what the relationship between their self-esteem and preferred types of play is.Random stratified method was used to collect study participants for this study.Elementary school students in Incheon Metropolitan City,Republic of Korea,were set up as a population,the city was divided into six areas in a similar area,and each school was numbered after identifying local elementary schools.A total of six schools were selected for each region by making random checks.A total of 18 classes were selected for each of the four,five,and six grades.A total of 450 questionnaires were distributed,but 381 of them were used for statistical analysis,except for 69 that were judged to have been poorly response.There were 215 male,166 female,151 in fourth grade,109 in fifth grade,and 121 in sixth grade.There are two questionnaires used in this study.First,to measure self-esteem,Rosengerg’s 10-item Self Esteem Scale was used to assess self-esteem.The scale,which provides a convenient measure of global attitudes about the self,has five negatively worded items and five positively worded items.This scale is one of the most widely used measures of self-esteem and has displayed good reliability and validity.Cronbach’s a showed 0.859.Second,to find out the preference for play types,we used those produced by Choi and Lee based on four types of play suggested by Roger Caillois.The questionnaire consists of four sub-variables:competition(Agon),chance(Alea),simulation(Mimicry)and vertigo(Ilinx).The Crombach’s a values are 0.705,0.694,0.786,and 0.722,respectively.The class teacher of the selected school was contacted and explained the purpose of the study and asked for consent.On the measurement date,we visited the class and conducted the measurement.Before measurement,we informed the purpose of the study again and asked for consent.The self-reported method was used to respond,and the measurement time was about 10 minutes.The responses were coded using the SPSS(win)15.0 program and frequency analysis was performed to characterize the data.The independent t-test was carried out to see if there was a difference between self-esteem and preferred types of play by gender.Correlation analysis was performed to see how self-esteem relates to the type of preferred play.All statistical significance levels are set as p<0.05.Children’s self-esteem does not differ depending on their gender.And it turned out that boys preferred competition,and girls preferred simulation,and chance and vertigo did not differ depending on gender.In male,a correlation between self-esteem and preference for play types has resulted in statistically significant correlation between self-esteem and competition,chance,and vertigo.In female,a correlation between self-esteem and preference for play types was performed in vertigo,where self-esteem was statistically significant.
文摘In a recent paper, we have studied the nature of the electromagnetic energy radiated over a single period of oscillation by an antenna working in frequency domain under ideal conditions and without losses when the oscillating charge in the antenna is reduced to the elementary charge. Here we extend and expand that study. The energy radiated by an oscillating current in an antenna occurs in bursts of duration T/2, where T is the period of oscillation. The results obtained here, based purely on classical electrodynamics, can be summarized by the inequality U ≥hv→q0 ≥e where U is the energy radiated in a single burst of duration T/2, h is the Planck constant, ν is the frequency of oscillation and q0 is the magnitude of the oscillating charge associated with the current. The condition U=hv→q0=e is obtained when the length of the antenna is equal to the ultimate Hubble radius of the universe (i.e. the maximum value of the antenna length allowed by nature) and the wavelength is equal to the Bohr radius (resulting from the smallest possible radius of the conductor allowed by nature). The ultimate Hubble radius is directly related to the vacuum energy density. The inequality obtained here is in general agreement with the one obtained in the previous study. One novel feature of this extended analysis is the discovery of an expression, in terms of the elementary charge and other atomic constants, for the vacuum energy density of the universe. This expression predicts the vacuum energy density to be about 4×10-10?J/m3 which is in reasonable agreement with the measured value of 6×10-10 J/m3.
