History of mathematics and history of science     

Mann T 《Isis; an international review devoted to the history of science and its cultural influences》2011,102(3):518-526

This essay argues that the diversity of the history of mathematics community in the United Kingdom has influenced the development of the subject and is a significant factor behind the different concerns often evident in work on the history of mathematics when compared with that of historians of science. The heterogeneous nature of the community, which includes many who are not specialist historians, and the limited opportunities for academic careers open to practitioners have had a profound effect on the discipline, leading to a focus on elite mathematics and great mathematicians. More recently, reflecting earlier developments in the history of science, an increased interest in the context and culture of the practice of mathematics has become evident.  相似文献   

Bibliometrics of global malaria vaccine research     

Kailash C. Garg  Suresh Kumar  Yennapu Madhavi  Mala Bahl 《Health information and libraries journal》2009,26(1):22-31

Objectives: This study evaluates malaria vaccine research carried out in different parts of the world during 1972–2004 using different bibliometric indicators. Method: Data have been downloaded from PubMed for the period 1972–2004 using the keywords (malaria* or plasmodium or falciparum) and (vaccine*) in the title and abstract fields. The study examined the pattern of growth of the output, its geographical distribution, profile of different countries in different subfields and pattern of citations using GOOGLE Scholar. Results: Malaria vaccine research output is gradually increasing. The USA, followed by the UK and Australia contributed the highest number of papers. Publication activity has decreased in Switzerland and Sweden, but has increased in Brazil and China. The majority of the countries have focused on the development of asexual blood stage malaria. Citations per paper and incidence of high‐quality papers for the USA, the UK, Papua New Guinea and Denmark are more than the average. The majority of the prolific institutions are located in the USA, the UK, France and Australia. Conclusion: The last two decades have witnessed considerable growth in research output in this field, while a successful malaria vaccine still remains elusive. Interestingly, the countries like the USA, the UK and Australia that lead in the quantity, quality and citation of this output are often not those directly affected by malaria.  相似文献   

Boredom in the lecture theatre: An investigation into the contributors,moderators and outcomes of boredom amongst university students     

Sandi Mann  Andrew Robinson 《British Educational Research Journal》2009,35(2):243-258

Student boredom within the school system has been widely studied and shown to be linked to various negative consequences such as diminished academic achievement, school dissatisfaction and truancy. However, little attention has been given to the issue of boredom within higher education and the current study aims to redress this balance. Two hundred and eleven university students completed questionnaires aimed at assessing contributors, moderators and consequences of their boredom. Results reveal that 59% of students find their lectures boring half the time and 30% find most or all of their lectures to be boring. The consequences of being bored included students missing future lectures and there was also a significant association between level of boredom and grade point average. The most important teaching factor contributing to student boredom is the use of PowerPoint slides, whilst the personality trait Boredom Proneness was the most important factor moderating the experience of boredom. Implications for future research and for teaching staff are outlined.  相似文献   

Alternative schools for troublesome secondary students     

Martin Gold  David W. Mann 《The Urban Review》1982,14(4):305-316

Results of a field experiment indicate that a certain kind of secondary school program reduced the disruptive behavior and improved the scholastic performance of students who were about to be suspended or expelled from their conventional schools. The research indicates that the program was demonstrably effective only with those students who were not at the outset extremely depressed and anxious. The essential characteristics of the program are described. The findings document the social psychological processes by which the program achieved its goals. Implications are drawn for a typology of delinquency; causes of delinquent and disruptive behavior; stigmatization; the possibility of an educational program being effective without the direct involvement of disruptive students' families or friends; and for some recurring questions regarding the design of alternative educational programs.  相似文献   

Hypoglycaemic, hypolipidemic and antioxidant properties of tulsi (Ocimum sanctum linn) on streptozotocin induced diabetes in rats     

Eshrat Halim M. A. Hussain  Kaiser Jamil  Mala Rao 《Indian journal of clinical biochemistry : IJCB》2001,16(2):190-194

Effect of oral administration of 200 mg/Kg body weight of the aqueous extract ofOcimum sanctum (Tulsi) mixed with diet for eight weeks to diabetic (streptozotocin induced) rats was studied. There was significant reduction in fasting blood glucose, serum lipid profile, lipid peroxidation products, (LPO) and improvement in glucose tolerance. The aqueous extract also decreased LPO formation (thiobarbituric acid reactive substances TBARS) and increased antioxidant enzymes superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX), glutathione transferase (GT) and one antioxidant reduced glutathione (GSH) in plasma and rat liver, lung, kidney and brain. The decrease in TBARS and increase in GSH, SOD, CAT, GPX, and GT clearly shows the antioxidant property ofOcimum sanctum.  相似文献   

Fractional practices in special education: a critique   总被引：1，自引：0，他引：1  

L Mann  W A Phillips 《Exceptional children》1967,33(5):311-319

  相似文献   

An easy, rapid and cost-effective method of microtitration     

Mala Das Sharma  Ch. Dhanamma 《Resonance》2005,10(10):78-83

An economical and less time consuming microtitration method is presented. The method has been applied to two types of titration, viz., neutralization and complexometric. The results obtained by the new method are comparable to those obtained by conventional method using burette and pipette. It is proposed that this method can be implemented in high school and undergraduate classes as the quantities of chemicals consumed are far less and the experiment can be completed within the given laboratory period.  相似文献   

Phonological processing, language comprehension, and reading ability   总被引：2，自引：0，他引：2  

V A Mann  E Cowin  J Schoenheimer 《Journal of learning disabilities》1989,22(2):76-89

Previous research has indicated a relationship between reading ability and the integrity of certain phonological processing skills--skills that operate on the sound structure of language. This study shows how the deficient phonological processing skills of poor beginning readers can impair their comprehension of spoken phrases and sentences that are disambiguated by prosodic cues (i.e., pitch, stress, and pause). Following a brief summary of the available research literature, two new experiments are reported to illustrate that poor readers do not interpret certain sentences as accurately as good readers do, because they are less able to hold phonological material temporarily in working memory. Further insight into the basis of these differences between good and poor readers is provided by two additional pieces of evidence: The differences between good and poor readers are analogous to those between older and younger children readers, and the performance of poor readers tends to resemble that of younger children reading at their same level (i.e., reading-ability-matched controls). Apparently, good and poor readers tend to differ in the rate at which they develop phonological processing skills.  相似文献   

Perceptual-cognitive expertise in sport: a meta-analysis   总被引：5，自引：0，他引：5  

Mann DT  Williams AM  Ward P  Janelle CM 《运动与训练心理学杂志》2007,29(4):457-478

Research focusing on perceptual-cognitive skill in sport is abundant. However, the existing qualitative syntheses of this research lack the quantitative detail necessary to determine the magnitude of differences between groups of varying levels of skills, thereby limiting the theoretical and practical contribution of this body of literature. We present a meta-analytic review focusing on perceptual-cognitive skill in sport (N = 42 studies, 388 effect sizes) with the primary aim of quantifying expertise differences. Effects were calculated for a variety of dependent measures (i.e., response accuracy, response time, number of visual fixations, visual fixation duration, and quiet eye period) using point-biserial correlation. Results indicated that experts are better than nonexperts in picking up perceptual cues, as revealed by measures of response accuracy and response time. Systematic differences in visual search behaviors were also observed, with experts using fewer fixations of longer duration, including prolonged quiet eye periods, compared with non-experts. Several factors (e.g., sport type, research paradigm employed, and stimulus presentation modality) significantly moderated the relationship between level of expertise and perceptual-cognitive skill. Practical and theoretical implications are presented and suggestions for empirical work are provided.  相似文献   

Transitioning Online Reference Staffing Models: Assessing and Balancing Needs of Patrons and Practitioners     

Lindsey Wharton  Emily Zoe Mann 《The Reference Librarian》2020,61(1):15-24

ABSTRACT

As staffing models evolve for academic library service points, online chat reference services require strategic analysis to improve efficiency and effectiveness. This paper will examine the perception of chat reference before and after staffing changes from faculty librarians, staff, and graduate assistants to non-MLIS library professionals and graduate assistants at Florida State University’s a large, public research university library. Our survey explores satisfaction levels and perception of both patrons and library personnel before and after the staffing change.

Our analysis of 197 patron survey results determined that patrons are equally satisfied with non-librarian provision of chat reference services and found chat interactions to be comparable in quality and timeliness to chats staffed by librarians. Our research into staffer survey results revealed a slight decrease in satisfaction with operation of the service, notably in terms of confidence after the staffing transition even though this was not reflected in the patron satisfaction levels. This assessment indicates that library workers are equally as competent in staffing chat reference services as librarians from patron perspectives. As academic libraries continue to measure the value of staffing service desks with librarians, this study will provide relevant insight into how patrons and staffers are affected by changes in staffing models.  相似文献