100,954 research outputs found
A REVIEW OF CHROMOSOME NUMBERS IN THE GENUS TILIA (TILIACEAE)
No full textChromosome numbers for all 23 species of Tilia recognized by the author, and for several subspecies and hybrids, are reviewed. Counts or cytometric analyses for 14 species are reported for the first time; of these, eight species are diploid (2n=82): T. amurensis subsp. taquetii, T. chingiana, T. endochrysea, T. kiusiana, T. mandshurica, T. caroliniana, T. heterophylla and T. mexicana, five are tetraploid (2n=164): T. chinensis, T. henryana, T. miqueliana, T. mongolica and T. paucicostata, and one is octoploid (2n=328): T. nobilis. T. japonica, previously reported as diploid, is tetraploid in Japan (Hokkaidō) and in China. Three new combinations are created: T. amurensis Rupr. subsp. taquetii (C.K. Schneid.) Pigott, T. cordata Mill. subsp. sibirica (Bayer) Pigott and T. platyphyllos Scop. subsp. corinthiaca (Bosc ex K. Koch) Pigott.</jats:p
Lip symmetry following rotation advancement cleft lip repair in 5-year-old children treated by Ralph Millard and Ron Pigott
No full textOBJECTIVE: To compare the symmetry of the lip following Rotation-Advancement cleft lip repair by Millard and Pigott and to investigate the effect on the symmetry of cleft side and gender by using different surgical protocols. Symmetry following cleft surgery was compared to that of non-cleft children. DESIGN: Retrospective study of photographs of children aged 5 years. SETTING: Three decades of post-operative photographs of children treated by Millard and Pigott. PATIENTS: Eighty-nine children treated by Millard, 87 by Pigott and 91 non-cleft children. INTERVENTIONS: Photographs were assessed using the Symnose Computer program, a rapid semi-objective quantitative assessment of lip symmetry. MAIN OUTCOME MEASURE(S): Asymmetry score for each surgeon, and non-cleft children. RESULTS: There was no significant difference in the median lip % mismatch score of Millard, 36.65% and Pigott, 38.52%. Right-sided clefts showed better symmetry than left-sided clefts for Millard (p<.001). This was reversed for Pigott (P=.0121). There was a difference (P<.001) between the symmetry of the two cleft cohorts and the non-cleft children (asymmetry 19.9%), and between Millard's outcomes following different lip surgical protocols (P < .0001), but no difference between Pigott's outcomes using different palate surgical protocols (P = 0.59). CONCLUSIONS: Cleft lip repair by Millard and Pigott resulted in similar lip asymmetry (37% and 39% symmetry mismatch, respectively). Lip surgical protocol and cleft side may affect lip asymmetry. Palate surgery did not affect lip asymmetry. Following cleft surgery, children were more asymmetric than non-cleft children
Multimedia databases: an approach to design
No full textIn this paper we describe a methodology and diagramming notation for designing a multimedia database. Multimedia databases have novel requirements compared with conventional text and numeric databases, in particular the need to consider the most appropriate physical formats of the digital artefacts and the possibility of reuse of artefacts for different semantic purposes. However the need to be able to model a problem at a high level of abstraction, and to proceed from a conceptual to physical solution, remain essential. The approach presented here ensures a parallel focus on representing both the meaning of the media artefact, and its appropriate technical specification. We present several new concepts - the media entity, the media relationship and the ERD+ diagram - that allow us to incorporate media artefacts into a conventional data modelling technique. The database design and documentation produced allow considerations of specific implementation to be deferred as long as possible
The functional-entity relationship diagram: conceptual modelling for complex knowledge systems
No full textDesigning and building a knowledge management system involves ensuring that the right facts can be called upon to answer the question at hand, and coordinating a number of disparate resources. Modelling such resources can be problematical as there is currently no formalism that can represent the nature of the dataseeking process at a conceptual level. We introduce the functional entity (FE), an encapsulated data resource that acts as a question-answering system, and identify nine different functional entities based on three main types of question-answer entailment: instance-dominant, value-dominant, and connection-dominant. We use functional entities to develop a generalisation of the Entity-Relationship Diagram (ERD), the Functional-Entity Relationship Diagram (FERD), which can be used for high level conceptual modelling of heterogeneous KM systems, and illustrate its use with a case study. We also show how the establishment of standard types of functional entity motivates practical guidelines for the conversion of the design to the implementation level
The noetic prism: a new perspective on the information, data, knowledge complex
No full textSuccessful knowledge management has as prerequisite an understanding of what actually constitutes ‘knowledge’. Yet the definitions of knowledge in the literature, and its relationships with ‘data’ and ‘information’, are varied, inconsistent and often contradictory. In particular the traditional hierarchy of datainformation-knowledge and its various revisions do not stand up to close scrutiny. We suggest that the problem lies in a flawed analysis that sees data, information and knowledge as separable concepts that are transformed into one another through business processing. We propose the term ‘noetica’ to describe the collective intellectual resources of an organisation, together with a revised analysis of the process of adding value to noetica that identifies it as change occurring simultaneously along three different dimensions: increase in aggregation; increase in shape, and increase in contextualisation. A new model is presented in which the three dimensions of complexity – granularity, shape and scope – are seen as the three vertices of a triangular prism, and suggest that all value-adding through business processing can be seen as movement within this space. We map these definitions back to the concepts of information, data and knowledge, and show how the ‘noetic prism’ can be used as a management tool for analysing the state of the noetic resources of an organisation, and for elucidating and suggesting solutions to several of the current problems in information/data/knowledge management
Examining the Relations Between Spatial Skills and Mathematics Performance: A Meta-Analysis
No full textSupplementary materials for "Atit, K., Power, J.R., Pigott, T. et al. Examining the relations between spatial skills and mathematical performance: A meta-analysis. Psychon Bull Rev 29, 699–720 (2022). https://doi.org/10.3758/s13423-021-02012-w
Examining the Relations Between Spatial Skills and Mathematics Performance: A Meta-Analysis
No full textSupplementary materials for "Atit, K., Power, J.R., Pigott, T. et al. Examining the relations between spatial skills and mathematical performance: A meta-analysis. Psychon Bull Rev 29, 699–720 (2022). https://doi.org/10.3758/s13423-021-02012-w
EEG-neurofeedback and the correction of misleading information: A reply to Pigott and Colleagues
No full textAs scientists, we gladly welcome academic debate surrounding our research. However, when commentators Pigott and colleagues contact our universities demanding that we (RTT and AR) be reprimanded and claiming that we are “contaminating the scientific literature with [our] animus-driven venom” and should “(re)take Learning 101 before publishing further”, their arguments cease to hold scholarly appeal. The three directors at McGill University in receipt of the accusations put forward by Pigott and colleagues discussed the complaint and all agreed that it did not merit a response. Chapman University launched an assessment and an administrator at the level of Dean performed the evaluation and dismissed the complaint. Pigott and colleagues are willfully tying-up academic resources in an attempt to stifle scientific research that challenges their opinions.[...
Letter, [Author unclear] to Paulina T. Merritt
No full textHandwritten letter to Paulina Merritt from an unknown author, October 1, 1876.
Handwritten biographical information on Paulina T. McClung Merritt
No full textA handwritten biography of Paulina T. McClung Merritt by an unknown author, 1892.
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