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1.
《中山大学学报论丛》1995,(3)
WemadeasurveyofmammalianinGuangdongandHainanfrom1958,Theresults:3monographesand52paperswerepuplished.1Thesurveyofmammalianresources(1)ThesurveyofmammalianresourcesinHainanIsland.ThecontinuoussurveyofmammalianresourcesinHainanIslandwasmadefromMay,1960toDecember,1964.Theinvestigationswerecarriedoutandmorethan30surveysitesweresetupthere.755specimenofmammalianwerecollectedinthefield,whichrepresentedeightorder,24familiesand68species,ofwhichfivewerenewrecordsfromtheisland.ExcepttheDouelangur(Py… 相似文献
2.
Experimental study has been conducted to determine the solubility of natural gas in liquid at temperatures of 293.15, 298.15, 303.15 and 313.15 K at atmosphere pressure. Ethanol, n-bexane and n-heptane were selected as solvents in the experiment. The solubility data of methane in the mixing solvents were determined and the experimental data were calculated with the PR and PRSV equation of state(EOS). The calculated average absolute deviations for the two kinds of ternary systems CH4/n-C6H14-C2H6O and CH4/n-C7H16-C2H6O are 1.92% and 1.85% for PR EOS and 2.11% and 1.87% for PRSV EOS, respectively. 相似文献
3.
Ning He Danmin Miao 《美中教育评论》2006,3(3):31-36
Teacher efficacy is a powerful variable in educational and psychological studies. And it aroused much attention and interest from Chinese scholars in the past decade, which led to an accumulation of documents in this field. Following an introduction of efficacy studies in the west, the article reviews the brief history of those in China, summarizing the main achievements into four aspects. With an eye on the future development of researches on teacher efficacy in China, some directions are suggested by the author simultaneously. 相似文献
4.
Victoria Crisp Ezekiel Sweiry 《Educational research; a review for teachers and all concerned with progress in education》2013,55(2):139-154
Background When an exam question is read, a mental representation of the task is formed in each student's mind. This processing can be affected by features such as visual resources (e.g. pictures, diagrams, photographs, tables), which can come to dominate the mental representation due to their salience. Purpose The aim of this research was to investigate the effects of visual resources in exam questions and, in particular, to investigate how and when students use images and whether subtle changes to these salient physical features can affect whether a question is understood and answered in the way intended by the question-setters. Sample The participants were 525 16-year-old students, with a range of ability, in four secondaryschools. Design and methods Experimental test papers were constructed including six questions based on past examination questions and involving graphical elements. For five of the six questions, two versions were designed in order to investigate the effects of changes to visual resources on processing and responses. A sample of the students were interviewed afterwards. Results Where two versions of a question were trialled in parallel, the differences in the visual resources significantly affected marks for one question and had smaller effects on marks and the nature of answers with some of the others. There were mixed views from students over whether a visual resource that is not strictly necessary should be used. Some considered it reassuring, whilst others deemed it unnecessary. Evidence in the literature suggests that caution may be needed since there is a risk that some students may pay too much attention to the image. Findings from one question (question 6) indicated that visuals can increase the likelihood of students making unhelpful interpretations of a question. Students were seen to have sensible expectations regarding when to use information from a visual resource and what is important in an illustration. In addition, more use tended to be made of a technical diagram (in question 12) in comparison to pictures or sketches, and it was found that if an image provides a clue to an answer, this may be used in preference to information in the text. Evidence regarding the use that students made of a table (question 1) indicated that the data in the table cells were given more attention than some of the preceding text and text in a header. This might apply similarly to other resources like graphs and charts. Conclusions It is important to ensure that the inclusion of a visual resource is carefully considered and appropriately designed. If a visual resource is not strictly needed in a question, the writer will need to balance the advantages and disadvantages. Authors should also consider whether and how students are likely to use or be affected by the particular visual resource chosen. The findings and suggested implications of this study are most applicable to high-stakes testing but may also be useful to those preparing school textbooks and to teachers in their preparation of classroom materials. 相似文献
5.
This study examines the question of which school environment – special or mainstream school – is more favourable for deaf and hard-of-hearing students in Sweden, when it comes to their well-being, and their social and academic inclusion. The aim is threefold: first to compare the well-being of adolescents who are deaf or hard-of-hearing, who are deaf or hard-of-hearing and have additional disabilities, and who have no disabilities; second to compare the adolescents from the two deaf and hard-of-hearing groups and their experiences of inclusion and exclusion in school; and third to ascertain if any gender differences exist between the two groups of deaf and hard-of-hearing students concerning their experiences of inclusion and exclusion. A total of 7865 adolescents (13–18 years of age) answered a total survey about the life and health of young people in a county in Sweden. The results show that both boys and girls in the hard-of-hearing groups rated their well-being lower and were less satisfied with their lives than pupils without disabilities. They also show that the hard-of-hearing boys and girls attending special school were more satisfied with their lives and to a greater extent felt included both socially and academically than students in mainstream school. 相似文献
6.
Joanne Rajadurai 《英语辅导》2005,(9)
引言: 一个语言多元化的国家——马来西亚,其使用的英语也有当地的特色,有一定的社会性。并且,与标准英语相互并存,各有其存在于当地的原因。 相似文献
7.
"INCEPTION" has become a blockbuster recently and this word reflects the phenomenon:meaning expanding in a specific context,which,as a matter of fact,lives in many fields such as literature,films and speeches.Such words or phrases have both surface and deep meanings whose translation research is mainly placed on literal or literary transfer,leaving out their dynamicity and balance in meaning category.This paper aims to give a brief analysis on such phenomenon and puts forward to a new translation principle:category equivalence in dynamicity and balance. 相似文献
8.
The worries ＆ wishes of 14 -19 years-old adolescents of Abadeh, Bavanat ＆ Khorambid cities in the north of Fats province are investigated in this research. The wishes ＆ worries are measured by wishes measurement scale （WMS） and Ahwaz worry inventory （AWI） respectively. The Ss consisted of 300 Adolescents （150 girls ＆ 150 Boys） that selected by ratio sampling method. The most important results of project are as following ：（1） there are significant positive correlations between wishes ＆ worries. （2） Girls in comparison with boys have been significantly higher on emotional-psychological and moral-philosophical wishes. Further more, they haven＇t been different on somatic- physical ＆ social - familial wishes. （3） In self -esteem, vocational, other relations, insecurity, detail problems worries and AWI, girls have been significantly worrier than boys. While in cognitive ＆ future worry factors their situation have not been different. （4）. According to the influence of gender on adolescents, worries and wishes for prompting of their mental health should be used in different ways. 相似文献
9.
This article describes a study by co-integration test and Granger causality test on the relationships between China's services trades and employment using the data of services trade from the WTO website and the employment data from China Statistic Yearbook for the years from 1982 to 2003. Co-integration test showed that 1% increase in export value and import value of services created respectively 0.205% and 0.068 7% more job opportunities in the service sector. Both export and import of services impacted positively on employment in service industry, and export did more than import. However, in the short run, the impacts of services export and import on employment in service industry were both very small, though positive; and the impacts of employment in service industry on both export and import of services were very big, but not stable. Granger causality test indicated that employment in service industry was a Granger cause of services export. The findings highlight the importance of facilitating services import and reducing import barriers, and suggest that the competitiveness of China's labor- intensive services trade can be exploited to boost services export and help employment in service sector, and that the structure of services trade should be optimized by shifting from labor-intensive to knowledge-and technology-intensive services thus to enhance China's competitiveness of services export. 相似文献
10.
* In recentyears, the solvent-based absorption sys-tem[1], in which di-n-butyl phthalate(DBP) is usedas the solvent recovering maleic anhydride, is beingdeveloped in China. The organic solvent (di-n-butylphthalate) needs to be washed by water to recycle it-self in the process of recovering maleic anhydride[2].This is a back extraction process involved in the pro-duction of maleic anhydride. The extraction efficiencydepends on the distribution coefficients of the organicsolutes,o-phthalic aci… 相似文献
11.
The knowledge of historical facts can help teachers and students to correctly appreciate a variety of scientific theories. It is important to be aware of the evolution of the basic concepts, particularly the ones our students find very abstract and therefore difficult to understand. Historical knowledge of chemical concepts will allow us to understand their difficulties and make them easier to teach successfully. In this paper we answer the following research questions: what was the historic and sociologic context in which chemical equivalent, mole and its magnitude amount of substance were introduced to science? How the lack of historic knowledge in science teaching contributes to the presence of distorted views of science and hampers meaningful learning? 相似文献
12.
ABSTRACTThis case study focuses on teachers’ professional development in NanoScience and nanoTechnology (NST). In the context of a Community of Learners (CoL), in-service teachers in collaboration with science education researchers, nanoscience researchers and experts from science museums, developed a teaching module. This module integrates NST topics along with aspects of science communication, i.e. development of science exhibits and socio-scientific issues, e.g. ethics regarding the research in this field. The data were gathered over 1-year period by using video recordings and interviews. The Interconnected Model of Professional Growth was used to study the processes that support teachers’ professional change in this context, as they are elicited from their interactions in the CoL. Our findings indicate that the dynamic of teachers’ interactions with colleagues and the mediating processes that impact on their professional learning, are crafted on the basis of the emerged challenges in each phase of module’s design and development. These findings give an insight on teachers’ professional learning as they transfer their professional knowledge regarding scientific topics which are innovative to them, i.e. NST, into their teaching practice. In this respect, this study contributes to research literature relevant to teachers’ professionalisation in order to implement innovations in the classroom. 相似文献
13.
In research on teachers’ beliefs, a distinction is often made between what teachers state (“professed beliefs”) and what is reflected in teachers’ practices (“attributed beliefs”). Researchers claim to have found both consistencies and inconsistencies between professed and attributed beliefs. In this paper, methods and research designs typically used in studies of teachers’ beliefs are examined. It is asserted that, in some cases, the perceived discrepancy between professed and attributed beliefs may actually be an artifact of the methods used to collect and analyze relevant data and the particular conceptualizations of beliefs implicit in the research designs. In particular, the apparent dichotomy can be the result of a lack of shared understanding between teachers and researchers of the meaning of terms used to describe beliefs and practices. In addition, it is asserted that it is inappropriate to classify any belief as entirely professed since researchers make various attributions to teachers through choices about data collection, theory, analysis of data, and presentation of findings. Moreover, the emphasis on classifying beliefs in this manner may be inhibiting researchers from developing a more comprehensive understanding of teachers’ beliefs. Traditional and alternative methods are described, a data example is provided to illustrate the claims, and implications for future research are discussed. 相似文献
14.
INTRODUCTION The gymnasium project located in the newcampus of Zhejiang University is a symbol building(Fig.1). The requirements on the functions and theesthetics make it distinguished from a traditionalgymnasium. It is a two-story building with the firstfloor used for field competition and the second floorfor students’ basketball training. The heavy live loadsacting on the second floor and the requirement of 35m unobstructed space challenge the creativity of thestructural enginee… 相似文献
15.
Chunk has been one of the most important subjects in the field of both native and second language acquisition in recent years. This article reviews the present situation of chunk research at home and abroad, and analyses some of the problems and deficiencies of the research, lexical chunks through to the research of chunks in recent years both at home and abroad. 相似文献
16.
Angus Alton Alf Massey 《Educational research; a review for teachers and all concerned with progress in education》2013,55(1):105-109
General Certificate of Secondary Education (GCSE) examinations are taken by almost all pupils in England, Wales and Northern Ireland at age 16 years. General Certificate of Education Advanced level (GCE A‐level) examinations are normally taken by relatively able students at age 18. The effect of month of birth on attainment in these public examinations is investigated through a database which brings together the 1991 GCSE results and the 1993 GCE A‐level results of all candidates born between September 1974 and August 1975. Older pupils perform best at GCSE but not at GCE A‐level. Selection effects on entry to A‐level courses appear to explain why this is the case. 相似文献
17.
Michalinos Zembylas 《Teachers and Teaching》2013,19(6):703-716
This article analyzes the ways in which emotions are constituted and mobilized by teachers to respond to growing diversity and multiculturalism in schools. The analysis is based on a two‐year ethnographic study conducted in three Greek‐Cypriot primary schools that are ‘multicultural’. The following focus questions are addressed: (1) How do teachers’ emotional experiences of growing diversity and multiculturalism in schools form particular economies of effect?; and (2) What is the nature of these economies of affect and in what ways is it possible to form an ethic of discomfort as a space for constructive transformations in multicultural schools? An ethic of discomfort is theorised as an economy of affect that uses discomfort as a point of departure for individual and social transformation. The outcomes of this study show that teachers experience intense emotional ambivalence in their efforts to cope with growing diversity and multiculturalism in schools. It is argued, however, that the capabilities of teachers to cope with growing diversity and multiculturalism are enhanced, if an ethic of discomfort is constituted in multicultural schools. The implications of this study are discussed in relation to teaching and teacher education and suggest that constituting an ethic of discomfort offers opportunities to challenge structures of power, privilege, racism, and oppression. 相似文献
18.
Effects of jigsaw and animation techniques on students’ understanding of concepts and subjects in electrochemistry 总被引：3，自引：0，他引：3
Kemal Doymus Ataman Karacop Umit Simsek 《Educational technology research and development : ETR & D》2010,58(6):671-691
This study investigated the effect of jigsaw cooperative learning and animation versus traditional teaching methods on students’ understanding of electrochemistry in a first-year general chemistry course. This study was carried out in three different classes in the department of primary science education during the 2007–2008 academic year. The first class was randomly assigned as the jigsaw group, the second as the animation group, and the third as the control group. Students participating in the jigsaw group were divided into five “home groups” since the topic electrochemistry is divided into five subtopics. Each of these home groups contained four students. The groups were as follows: (1) Home Group A (HGA), representing the fundamental concepts of electrochemistry, (2) Home Group B (HGB), representing the electrochemical cell and energy source, (3) Home Group C (HGC), representing electrolysis, (4) Home Group D (HGD), representing Faraday’s laws, and (5) Home Group E (HGE), representing corrosion. The home groups broke apart, like pieces of a jigsaw puzzle, and the students moved into jigsaw groups consisting of members from the other home groups, who were each assigned a subtopic. For students in the animation group, their lesson focused on explaining the step-by-step process of electrochemistry through a computer-animated presentation. The main data collection tools were the Test of Scientific Reasoning and the Particulate Nature of Matter Evaluation Test. The results indicated that the jigsaw and animation groups achieved better results than the control group. 相似文献
19.