Previous research has found that researchers rank journal reputation and impact factor (IF) amongst the key selection criteria when choosing where to submit. We explored the actual effect upon submission numbers of several possible factors. We retrieved 10 years of submission data from over a thousand journals, as well as data on IF, retractions, and other factors. We performed statistical analysis and identified correlations. We also undertook case study research on the 55 most significant submission decreases. We found a statistically significant correlation between changes in IF, ISI percentage ranking, and changes in submissions numbers in subsequent years. We also found a statistically significant effect on submission numbers in the year following the publication of a retraction. Our case studies identified other factors, including negative feedback on the peer review process. Our findings regarding IF confirm previous indications about the significance of IF on submissions. We explain the correlation with retractions through the concept of ‘peer review reputation’. These results indicate that editors and publishers need to focus on a journal's peer review practices, as well as a journal's IF, if they are to maintain and grow submissions. 相似文献
Intelligent use of the many diverse forms of data available on the Internet requires new tools for managing and manipulating
heterogeneous forms of information. This paper uses WHIRL, an extension of relational databases that can manipulate textual
data using statistical similarity measures developed by the information retrieval community. We show that although WHIRL is
designed for more general similarity-based reasoning tasks, it is competitive with mature systems designed explicitly for
inductive classification. In particular, WHIRL is well suited for combining different sources of knowledge in the classification
process. We show on a diverse set of tasks that the use of appropriate sets of unlabeled background knowledge often decreases
error rates, particularly if the number of examples or the size of the strings in the training set is small. This is especially
useful when labeling text is a labor-intensive job and when there is a large amount of information available about a particular
problem on the World Wide Web.
The perceived spatiotemporal continuity of objects depends on the way they appear and disappear as they move in the spatial layout. This study investigated whether infants' predictive tracking of a briefly occluded object is sensitive to the manner by which the object disappears and reappears. Five-, 7-, and 9-month-old infants were shown a ball rolling across a visual scene and briefly disappearing via kinetic occlusion, instantaneous disappearance, implosion, or virtual occlusion. Three different measures converged to show that predictive tracking increased with age and that infants were most likely to anticipate the reappearance of the ball following kinetic occlusion. These results suggest that infants' knowledge of the permanence and nonpermanence of objects is embodied in their predictive tracking. 相似文献
OBJECTIVES: To assess the impact of a voluntary, paraprofessional home visiting program in preventing child maltreatment and reducing the multiple, malleable psychosocial risks for maltreatment for which families had been targeted. METHODS: This collaborative, experimental study focused on 6 Healthy Families Alaska (HFAK) programs; 325 families were enrolled in 2000-2001, randomized to intervention and control groups, and interviewed to measure baseline attributes. Follow-up data were collected when children were 2 years old (85% follow-up rate). Outcomes included maltreatment reports, measures of potential maltreatment and parental risks, for example, poor mental health, substance use, and partner violence. HFAK records were reviewed to measure home visiting services. Home visitors were surveyed to measure perceived effectiveness and training adequacy. RESULTS: Parental risks were common at baseline, and one-sixth of families had a substantiated child protective services report in the child's first 2 years of life. There was no overall program effect on maltreatment reports, and most measures of potential maltreatment. Home visited mothers reported using mild forms of physical discipline less often than control mothers. The groups were similar in their use of more severe forms of physical discipline. There was no program impact on parental risks. There was no impact on outcomes for families with a 'high dose' of home visiting. Home visitors often failed to address parental risks and seldom linked families with community resources. Contradictions in the model compromised effectiveness. CONCLUSIONS: The program did not prevent child maltreatment, nor reduce the parental risks that had made families eligible for service. Research is needed to develop and test strategies to improve the effectiveness of home visiting. 相似文献
The current study examines the effects of digital scaffolding on the English literacy of fourth- and sixth-grade students. A total of 1085 native English-speaking and language minority students from 25 treatment classes and 20 control classes across three school districts participated in this study for one school year. Treatment students read their English language arts and social studies text in visual-syntactic text format (VSTF) on their laptops and control students read the regular block format of the textbook either on their laptops or in print. Observations and interviews revealed that VSTF reading facilitated instruction processes and student learning in reading activities. The results of California Standard Tests (CST) before and after the treatment revealed that sixth-graders who received syntactic scaffolding outperformed control students on the composite CST score. In particular, reading in VSTF benefited the treatment students in three CST sub-categories: word analysis, written conventions and writing strategies. This study suggests that future research should investigate instructional strategies that support reading and writing development of adolescents, including at-risk students, using syntactic scaffolding. 相似文献
Engaging students in a challenging (cognitively demanding) task and launching a mathematics lesson with a task before instruction are two characteristics of a reform-oriented approach to mathematics instruction often considered together. The authors systematically contrasted teaching with challenging tasks using a task-first lesson structure with that of a discussion-first lesson structure to three composite classes of first- and second-grade students (n = 73). Subsequent assessments of mathematical performance revealed that the discussion-first lesson structure was somewhat more efficacious in improving fluency performance but both structures similarly improved problem-solving performance. The findings suggest there is more than one way of incorporating challenging tasks into mathematics lessons to produce sizeable learning gains. 相似文献
This mixed-methods study examines engaging teaching at one racially and ethnically diverse public school using the self-system process model of student engagement. As theorized, multilevel analyses of student survey data (N?=?580) reveal that student perceptions of structure, autonomy support, and involvement differentiate highly, moderately, and weakly engaging teachers. Classroom observations (N?=?12) and student interviews (N?=?17) suggest that the behavior of autonomy supportive and involved teachers is friendly, helpful, and emphasizes student agency. Although few racial or ethnic differences are observed, autonomy supportive and involved teacher behavior appears particularly critical to the behavioral engagement of Black and Latinx students. Helpfulness may also moderate stereotype threat. Implications for researchers, practitioners, and policy-makers are discussed.
This article builds upon a tradition of feminist critical engagements with Bourdieu, developing the concept of ‘foregrounded history’ as a way to conceptualise the temporal and affective in processes of habitus formation. Through analysis of affects ‘produced through the social encounter’ within everyday childhoods on a British council estate, the article explores habitus as histories both embodied and felt in the present. Drawing upon ethnographic research conducted within the interrelated fields of the Primary School and the Community Centre, this article considers processes of distinction, disagreement and resistance in the formation of classed positionings on The Estate. 相似文献
Pat Sadler, Hiroshima Shudo University, The Caring Child by Nancy Eisenberg. Cambridge, Mass, and London: Harvard University Press, 1992, hb ISBN 0 674 09725 4, pb ISBN 0 674 09726 2, US$8.95 Garry Hornby, University of Hull, Youth in Trouble: Educational Responses, by J. F. Schostak. London: Kogan Page, 1991. 192pp., pb. ISBN 0 7494 0372 1, np Gordon Dimmock, Harold Hill Community School, Havering, ‘Some Way to Go’: A Pilot Study on the Appraisal of Educational Resources on Leaving Home and Homelessness, Leaving Home Project. London: Information Services Charity Limited, 1987. 56pp., £4.95 Gordon Dimmock, Harold Hill Community School, Havering, Experimental Project. Final Report, Leaving Home Project. London: Information Services Charity Limited, 1991. 30pp., £6 Gordon Dimmock, Harold Hill Community School, Havering, ‘Making the Break’: Choices and Decisions Facing Young People Leaving Home, by Philip Hope, edited by Catherine ByGott. London: CSV Advisory Service and Leaving Home Project, 1989. 157pp. plus VHS video ‘Cutting Loose’, 20 min., CSV, 1988. ISBN 0 907829 57 0, £28.25+£2.40 p. & p. Don Baines, Anglia Polytechnic University, Teacher Training in Secondary Schools, by Rowie Shaw. London: Kogan Page Limited, 1992. 162pp., pb ISBN 0 7494 0637 2, £14.95 Gill Collins, Sovereign Centre Tutorial Unit, Issues: A Cross-Curricular Course for PSE, by John Foster. Hammersmith: Collins Educational, 1992. Pupil Book One, ISBN 0 00 327334 2, £4.95; Teachers Resources One, ISBN 0 00 327339 3, £7.25; Pupil Book Two, ISBN 0 00 327335 0, £4.95; Teachers Resources Two, ISBN 0 00 327340 7, £7.25; Pupil Book Three, ISBN 0 00 327336 9, £4.95; Teachers Resources Three, ISBN 0 00 3273415, £7.25; Pupil Book Four, ISBN 0 00 327337 7, £5.50; Teachers Resources Four, ISBN 0 00 327342 3, £7.95; Pupil Book Five, ISBN 0 00 327338 5, £5.50; Teachers Resources Five, ISBN 0 00 327343 1, £7.95 相似文献