Spaces for Change: Gender and Technology Access in Collaborative Software Design     

Ching  Cynthia Carter  Kafai  Yasmin B.  Marshall  Sue K. 《Journal of Science Education and Technology》2000,9(1):67-78

Equitable computer collaborations in mixed-gender teams have been a pressing issue for many years. While some have argued for creating single-gender teams or girls-only computer activities, our approach was different. The current study examines a three-month software design activity in which mixed teams of girls and boys (10–12 year olds) designed and implemented multimedia astronomy resources for younger students. In this context we assessed gender differences in students' levels of access to technology and how these participation patterns changed throughout the project duration. We found through our qualitative analyses that the configuration of social, physical and cognitive spaces in the project environment contributed to a positive change in girls' levels of access. We discuss the implications of these results in regard to issues surrounding the development and maintenance of gender equity in computer use and further research.  相似文献   

Teachers' pedagogical beliefs and their planning and conduct of computer-mediated classroom lessons   总被引：2，自引：0，他引：2  

Cher Ping Lim  Ching Sing Chai 《British journal of educational technology : journal of the Council for Educational Technology》2008,39(5):807-828

In this study, we observed and interviewed six teachers from two Singapore primary school classrooms. The schools were reportedly achieving high levels of computer integration as reflected in a nationwide questionnaire survey. Out of the 18 lessons that we observed, 14 lessons have incorporated some elements of constructivist teaching. However, closer examination revealed that the underlying orientation of the lessons was inclined towards information acquisition and regurgitation. Five out of the six teachers we interviewed were reportedly inclined towards constructivist notion of teaching. The teachers accounted for the inconsistency between their espoused beliefs and the teacher-centric teaching practice as due to contextual constraints. The teachers expressed that the need to complete the syllabi according to stipulated schedules so as to get the students ready for examination was the main barriers that prevented them from engaging in more constructivist teaching. This case study therefore highlights that although it is necessary for teachers to hold pedagogical beliefs that are compatible with the constructivist notion of teaching and learning, this is an insufficient condition to shift traditional teaching practice. Changes in assessment systems and substantial professional development are further conditions that have to be addressed.  相似文献   

Widening Our Global View: The Development of Career Counseling Services for International Students     

Eunjoo Yang  Sing Chee Wong  Mae-hyang Hwang  Mary J. Heppner 《Journal of Career Development》2002,28(3):203-213

The increased number of international students in United States universities and colleges have created the need for the development of services that appropriately reflect their needs and characteristics. The Career Center at the University of Missouri, Columbia reacted to this phenomenon by developing career services exclusively for international students. Career services are provided as individual services and online services, and consist of information on graduate schools and entrance examination practices, information on available employment opportunities and work permit policies, career assessments, and information about specific skills for obtaining a job in the United States. Several marketing strategies were used to ensure international students' use of services. Important points in developing career services for international students are presented.  相似文献   

两种蕨类植物的新命名     

秦仁昌 《中国科学院研究生院学报》1964,9(1):99-99

 The fern genus Diplaziopsis C. Chr. of Index Filicum has long been considered as a monotypic one, with the sole species, D. javanica (B1.) C. Chr. from tropical Asia.  In 1906, H. Christ described a second species, Allantodia cavaleriana Christ (=D. cavale- riana C. Chr.) from Kweichow, West China, but this was since not fully recognized by fern students in general, being often considered as a variety of the first species.  This is certainly a mistake, as is shown by ample herbarium specimens today.  In the recent work on the genus, the writer has found among the herbarium material two additional new species from China, thus bringing the genus up to four species in Asia, mainly from China, where, as it is, the genus has its center of development from the long past.      Phylogenetically, Diplaziopsis C. Chr. represents one of the offshoots from the great stock of diplazioid ferns, of which the genus Diplazium Sw. constitutes the main body of the group and from which our genus differs chiefly in its leaves of a thin texture with reticulated venation, but not so much in its type of indusium as it has generally been emphasized by most botanists in the past, for, as it is, the type of indusium in Di- plaziopsis also prevails in many species of Diplazium, for which C. B. Clarke (Trans. Linn. Soc. ser. 2, Bot. I:495, 1880) created, but really superfluously, a subgenus Pseudal- lantodia, about which the writer will dwell in another paper in the near future.  Suffice it to say here that the indusium in Diplaziopsis as revealed by the species treated here is, indeed, typical of diplazioid ferns, only often, as it happens, with  its  adaxial  edge pressed so tight under the expanding sorus that it is unable to open freely along its upper free edge and, as a result, its thin vaulted back bursts open from the pressure of the ex- panding sorus underneath.      As a result of the present study, following four species of the genus have been re- cognized.      Diplaziopsis javanica (B1.) C. Chr. Ind. Fil. (1905) 227.      Wide spread in tropical Asia, northwardly to Bakbo and the southern part of Yun- nan, China.      D. cavaleriana (Christ) C. Chr. Ind. Fil. Suppl. I (1913) 25.      Ranges from West China through northern part of Fukien of East China to Japan.      D. intermedia Ching, sp. nov.      Endemic in West China:  Mt. Omei, Szechuan, and Kweichow.      D. hainanensis Ching, sp. nov.      In conclusion, it may be pointed out that with the modern plant taxonomy pursued in a more efficient manner than in the past, and especially by the introduction of the cytotaxonomic methods, the so-called “monotypic genera”, as conceived by the orthodox systematists, will continue to prove, to a great extent, to be lack of  enough  scientific ground.  The fact that the “monotypic genus” of Diplaziopsis C. Chr. is now found to be a genus of four well-defined species is once again an instance to illustrate the pointat issue.  相似文献   

Urinary N-acetyl beta glucosaminidase and gamma glutamyl transferase as early markers of diabetic nephropathy.     

Vivek Ambade  Parduman Sing  B L Somani  Dashrath Basanna 《Indian journal of clinical biochemistry : IJCB》2006,21(2):142-148

Albumin and enzymes-N-acetyl-beta-glucosaminidase (NAG) and gamma glutamyl transferase (GGT) were estimated in the morning random urine samples of 196 albustix negative diabetic patients to evaluate the clinical utility of these urinary enzymes as early markers of diabetic nephropathy. Albumin was estimated by immunoturbidimetric method and enzymes by linetic essay within six hours of voiding of urine. The urinary albumin and urinary enzyme concentration was calculated in terms of ratio with respect to urinary creatinine. Correlation coefficient (r) bewween urinary albumin and urinary enzymes in normoalbuminuric, microalbuminuric and overall diabetic cases was 0.23, 0.32 and 0.40 respectively for NAG, and 0.08, 0.06 and 0.18 respectively for GGT. NAG excretion was found increased in 34%, 63.7% and 49.5% of normoalbuminuric, microalbuminuric and overall diabetic cases respectively while GGT in 6.4%, 24.5% and 15.8%. The correlation coefficient between urinary albumin and NAG in normoalbuminuric, microalbuminuric, and overall diabetic patients with increased NAG excretion was found only 0.31, 0.27 and 0.35 respectively. No correlation was found between duration of diabetes and enzyme excretion. The study suggests that urinary NAG or GGT or both together do not have any clinical significance as an early marker of diabetic nephropathy.  相似文献   

中国蕨类植物的一些新分类群     

秦仁昌  王铸豪 《中国科学院研究生院学报》1983,21(2):211-218

在编写《中国植物志》第五卷过程中，发现三叉蕨科、实蕨科和藤蕨科的一些新分类群，预   先发表。模式标本均存中国科学院植物研究所。    相似文献   

Enhancing Children's Artistic and Creative Thinking and Drawing Performance through Appreciating Picture Books     

Ching‐Yuan Hsiao 《The International Journal of Art & Design Education》2010,29(2):143-152

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Students’ judgments on different cyberbullying incidents: the relationship between moral philosophy and intention to engage     

Luo  Yi Fang  Zhang  Sining  Yang  Shu Ching  Huang  Chiao Ling 《European Journal of Psychology of Education - EJPE》2023,38(3):989-1009

European Journal of Psychology of Education - This article draws on moral theory to explore how 415 adolescents made decisions when confronted with cyberbullying events and further examines whether...  相似文献   

The mediating effects of needs satisfaction on the relationships between prior knowledge and self-regulated learning through artificial intelligence chatbot     

Qi Xia  Thomas K. F. Chiu  Ching Sing Chai  Kui Xie 《British journal of educational technology : journal of the Council for Educational Technology》2023,54(4):967-986

The anthropomorphic characteristics of artificial intelligence (AI) can provide a positive environment for self-regulated learning (SRL). The factors affecting adolescents' SRL through AI technologies remain unclear. Limited AI and disciplinary knowledge may affect the students' motivations, as explained by self-determination theory (SDT). In this study, we examine the mediating effects of needs satisfaction in SDT on the relationship between students' previous technical (AI) and disciplinary (English) knowledge and SRL, using an AI conversational chatbot. Data were collected from 323 9th Grade students through a questionnaire and a test. The students completed an AI basic unit and then learned English with a conversational chatbot for 5 days. Confidence intervals were calculated to investigate the mediating effects. We found that students' previous knowledge of English but not their AI knowledge directly affected their SRL with the chatbot, and that satisfying the need for autonomy and competence mediated the relationships between both knowledge (AI and English) and SRL, but relatedness did not. The self-directed nature of SRL requires heavy cognitive learning and satisfying the need for autonomy and competence may more effectively engage young children in this type of learning. The findings also revealed that current chatbot technologies may not benefit students with relatively lower levels of English proficiency. We suggest that teachers can use conversational chatbots for knowledge consolidation purposes, but not in SRL explorations.

Practitioner notes

What is already known about this topic

• Artificial intelligence (AI) technologies can potentially support students' self-regulated learning (SRL) of disciplinary knowledge through chatbots.
• Needs satisfaction in Self-determination theory (SDT) can explain the directive process required for SRL.
• Technical and disciplinary knowledge would affect SRL with technologies.

What this paper adds

• This study examines the mediating effects of needs satisfaction in SDT on the relationship between students' previous AI (technical) and English (disciplinary) knowledge and SRL, using an AI conversational chatbot.
• Students' previous knowledge of English but not their AI knowledge directly affected their SRL with the chatbot.
• Autonomy and competence were mediators, but relatedness was not.

Implications for practice and/or policy

• Teachers should use chatbots for knowledge consolidation rather than exploration.
• Teachers should support students' competence and autonomy, as these were found to be the factors that directly predicted SRL.
• School leaders and teacher educators should include the mediating effects of needs satisfaction in professional development programmes for digital education.

  相似文献   

Interaction in asynchronous discussion boards: a campus-wide analysis to better understand regular and substantive interaction     

Gasell  Crystal  Lowenthal  Patrick R.  Uribe-Fl&#;rez  Lida J.  Ching  Yu-Hui 《Education and Information Technologies》2022,27(3):3421-3445

Education and Information Technologies - Discussion boards can provide a glimpse into the regular and substantive interaction required in online courses. Advances in technology and an increased...  相似文献