Plant tissue culture     

GAUTHERET RJ 《Endeavour》1948,7(26):75-79

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Investigation of Poor Academic Achievement in Children with Duchenne Muscular Dystrophy     

V. J. Hinton  D. C. De Vivo  R. Fee  E. Goldstein  Y. Stern 《Learning disabilities research & practice》2004,19(3):146-154

Duchenne Muscular Dystrophy (DMD) is a neurogenetic developmental disorder that presents with progressive muscular weakness. It is caused by a mutation in a gene that results in the absence of specific products that normally localize to muscle cells and the central nervous system (CNS). The majority of affected individuals have IQs within the normal range, generally with lower verbal than performance IQ scores. Prior work has demonstrated selective deficits on tests of verbal span and immediate memory. For the current study, 26 boys with DMD (and normal intellectual function) and their unaffected siblings were evaluated. Paired comparisons demonstrated that the children with DMD had significantly poorer academic achievement scores than their siblings, even though their vocabulary levels and home and educational environments were comparable. Children with DMD also had more behavioral concerns, physical disabilities, and poorer verbal memory spans. Linear regression indicated that behavioral concerns, executive function, and physical disability did not contribute substantially to academic performance, whereas performance on verbal span did. DMD presents with a selective developmental aberration in verbal span that has wide‐ranging consequences on learning skills.  相似文献   

Audacity Personified: The Generalship of Robert E. Lee     

Ray B. Browne 《Journal of American culture (Malden, Mass. : 2003)》2004,27(4):435-436

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Jump Jim Crow: Lost Plays,Lyrics, and Street Prose of the First Atlantic Popular Culture     

Ray B. Browne 《Journal of American culture (Malden, Mass. : 2003)》2004,27(3):343-343

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奥运冠军米斯蒂·海曼的训练特点     

J·R·罗萨尼亚 《体育科研》2003,24(3):62

美国运动员米斯蒂·海曼在悉尼奥运会女子200m蝶泳比赛中击败了该项世界纪录保持者澳大利亚苏珊 ?奥尼尔,爆出了2000年一大新闻。米斯蒂的成功,首先在于确立训练目标:增强肌肉力量,改善身体组成成份。虽然,那时她的体魄已经非常健康、匀称了,体内只有16%的脂肪,但计划要她降到12%。教练员探索她发展肌肉的突破口,为她制订了符合饮食习惯的各组食谱。训练中,主要做带有力量性、平衡性、多关节的和全身的练习,如:下蹲,静力举重,大步行进中的扩胸等练习,以增大肺活量。教练员还为她设计了提高肩后部和上背部的力量、提高腰腹部的力量和改善四头…  相似文献   

Book reviews     

Allan Mazur  Charles R. Day  J. W. Grove 《Minerva》1995,33(3):291-302

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Copyright complicance in the electronic age: Conceptual issues     

John R. Garrett 《Publishing Research Quarterly》1991,7(4):13-20

This article focuses on several conceptual and structural issues that are central to copyright compliance in the electronic age. It presumes the development of a national electronic network for storing, organizing, accessing, managing, and charging for information. The article first discusses the implications of constructing a comprehensive electronic “highway,” or Digital Library System (DLS), which would link information to the widespread community of users. It then presents the ramifications of a highly decentralized set of subsystems serving rights holders and users, linked by protocols established by the DLS. A discussion of the implications of digital interchangeability for copyright follows. The article ends with an analysis of alternatives to existing intellectual property rights conveyance systems, and concludes that current ownership structures, and systems for conveying rights and royalties, will remain the foundation for copyright in the electronic world. This article appeared in a slightly different form in theProceedings of the Twelfth National Online Meeting—1991, and is published here with the permission of Learned Information, Inc., Medford, N.J.  相似文献   

Ensuring Content‐Area Learning by Secondary Students with Learning Disabilities     

Donald D. Deshler  Jean B. Schumaker  B. Keith Lenz  Janis A. Bulgren  Michael F. Hock  Jim Knight  Barbara J. Ehren 《Learning disabilities research & practice》2001,16(2):96-108

Three factors tied with secondary student success in content‐area reading are demonstrated: (a) validated teacher‐focused and student‐focused interventions, (b) integrated and comprehensive service delivery systems, and (c) well‐designed, data‐based professional developmental programs. Difficult challenges face secondary students with LD and their teachers with regard to these students’ participation and success in required general education classes. Recently, instructional methods and materials have been developed and validated for promoting these students’ success. Some of them focus on how general education teachers plan and teach their content‐area courses; others focus on giving students the strategies they need to respond independently to the demands of their courses. This article describes these instructional methods, a service‐delivery model for implementing these interventions in secondary schools, and professional‐development mechanisms and administrative support that must be in place for the model to be maintained effectively.  相似文献   

A Pastoral Care Teacher's Theory of Action, Interactive Thinking and Effective Teaching Practice     

Anthony H. R. Chittenden 《Pastoral Care in Education》2002,20(1):3-10

Through the employment of a hybrid research model blending concept mapping and stimulated recall methodologies, this study explored the nature of a Pastoral Care Teacher's theory of action; the relationship between those beliefs and ideals and interactive thinking; and specific actions in effectively teaching a Pastoral Care issue. In undertaking the research a group of Year Eight boys at the Anglican Church Grammar School (Churchie) provided the context. The study shows that: (i) the teacher possessed a broad knowledge and understanding of the nature of Pastoral Care at Churchie; and (ii) the lessons undertaken, the pedagogy employed, and the knowledge elicited closely resembled the teacher's philosophies and thinking.  相似文献   

Icelandic: A Lesser-Used Language in the Global Community     

Halla B. Holmarsdottir 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2001,47(3-4):379-394

A small nation in the middle of the North Atlantic, Iceland currently has a population of 265,000 (1996). The Iceland language has changed very little since the island was settled some 11 centuries ago. Despite the relatively small number of people who speak the language and irrespective of the globalisation efforts by the international community, which includes the ever-increasing influence of English worldwide, the Icelandic language and culture are stronger than ever. The current volume and variety of publications of Icelandic works in all areas have never been as great. Icelandic is a living and growing language. Growth in vocabulary, in response to recent phenomena like the introduction of new technology, has primarily come about with the development of new words from the language's roots. The near absence of Latin, Greek and, more recently, English or Danish words in Icelandic, is striking. Iceland's language policy is not only a governmental policy. It is a policy that comes from the grassroots with the government and official institutions viewing their job as one of service to the people of Iceland. Icelanders are very proud of their language and are extremely determined to continually develop and preserve it for future generations.  相似文献