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27. Books

Author

Collins, R D J

Published
1985

31. Increased endothelial activation in recently symptomatic versus asymptomatic carotid artery stenosis and in cerebral microembolic-signal-negative patient subgroups

Author

Kinsella, J. A., Tobin, W. O., Kavanagh, G. F., OʼDonnell, J. S., McGrath, R. T., Tierney, S., Feeley, T. M., Egan, B., OʼNeill, D., Collins, R. D., Coughlan, T., Harbison, J. A., Doherty, C. P., Madhavan, P., Moore, D. J., OʼNeill, S. M., Colgan, M.-P., Saqqur, M., Murphy, R. P., Moran, N., Hamilton, G., and McCabe, D. J. H.

Published
2014
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37. A Functional Approach to the Classification of Malignant Lymphoma

Author

Lukes, R. J., Collins, R. D., Allfrey, V. G., editor, Allgöwer, M., editor, Bauer, K. H., editor, Berenblum, I., editor, Bergel, F., editor, Bernard, J., editor, Bernhard, W., editor, Blokhin, N. N., editor, Bock, H. E., editor, Braun, W., editor, Bucalossi, B., editor, Chaklin, A. V., editor, Chorazy, M., editor, Cunningham, G. J., editor, Dargent, M., editor, Della Porta, G., editor, Denoix, P., editor, Dulbecco, R., editor, Eagle, H., editor, Eker, R., editor, Good, R. A., editor, Grabar, P., editor, Hamperl, H., editor, Harris, R. J. C., editor, Hecker, E., editor, Herbeuval, R., editor, Higginson, J., editor, Hueper, W. C., editor, Isliker, H., editor, Kieler, J., editor, Klein, G., editor, Koprowski, H., editor, Koss, L. G., editor, Martz, G., editor, Mathé, G., editor, Mühlbock, O., editor, Nakahara, W., editor, Old, L. J., editor, Potter, V. R., editor, Sabin, A. B., editor, Sachs, L., editor, Saxén, E. A., editor, Schmidt, C. G., editor, Spiegelman, S., editor, Szybalski, W., editor, Tagnon, H., editor, Taylor, R. M., editor, Tissières, A., editor, Uehlinger, E., editor, Wissler, R. W., editor, Yoshida, T., editor, Rentchnick, P., editor, and Musshoff, K., editor

Published
1974
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45. Inspection error and its adverse effects - A model with implications for practitioners

Author

Collins, R. D., Jr, Case, K. E, and Bennett, G. K

Subjects
Quality Assurance And Reliability
Abstract

Inspection error has clearly been shown to have adverse effects upon the results desired from a quality assurance sampling plan. These effects upon performance measures have been well documented from a statistical point of view. However, little work has been presented to convince the QC manager of the unfavorable cost consequences resulting from inspection error. This paper develops a very general, yet easily used, mathematical cost model. The basic format of the well-known Guthrie-Johns model is used. However, it is modified as required to assess the effects of attributes sampling errors of the first and second kind. The economic results, under different yet realistic conditions, will no doubt be of interest to QC practitioners who face similar problems daily. Sampling inspection plans are optimized to minimize economic losses due to inspection error. Unfortunately, any error at all results in some economic loss which cannot be compensated for by sampling plan design; however, improvements over plans which neglect the presence of inspection error are possible. Implications for human performance betterment programs are apparent, as are trade-offs between sampling plan modification and inspection and training improvements economics.

Published
1978

49. Morphometric analysis of follicular center cell lymphomas

Author

Swerdlow, S. H., Pelstring, R. J., and Collins, R. D.

Subjects
Cell Nucleus, Palatine Tonsil, Humans, Lymphoma, Follicular, Cell Nucleolus, Chromatin, Software, Research Article
Abstract

The Lukes/Collins classification of non-Hodgkin's lymphomas subdivides follicular center cell (FCC) lymphomas into four categories based on nuclear size, shape, and state of transformation. Because of the well-recognized difficulty in making these subdivisions in routine histologic sections, a morphometric analysis of typical small cleaved (SC), large cleaved (LC), small noncleaved (SNC), and large noncleaved (LNC) FCCs was performed to describe and compare these four categories using objective parameters. The following features, which had been previously tested on normal follicles, were measured and calculated: nuclear area (NA), nuclear contour index of ellipticity (NCIe), nuclear contour index of nuclear irregularity (NCIni), and a relative chromatin dispersal index (CDI). The presence of nucleoli also was recorded. Mean values for the NA, NCIe, NCIni, and CDI were significantly different among all four FCC lymphoma subtypes, except that the CDI, which reflects transformation, was similar for the SC and LC cell groups. Comparison using the proportion of cells with nucleoli in each case revealed significant differences between all but the SNC and LNC groups. The LC group had the highest mean nuclear ellipticity and nuclear irregularity values. Mean nuclear area was smallest for the SC group followed by the LC, SNC, and LNC groups. Despite these many differences, all parameters showed a broad spectrum of values when either mean values for individual cases of each FCC subtype or distribution curves for all cells within a certain subtype were compared. This morphometric data demonstrates that the four histologically recognized types of FCC lymphomas are distinctive using a more analytic technique. This study also provides further insight into the differences among them. Evidence of nuclear transformation (nuclear size, chromatin dispersal, and frequent nucleoli) is a more important criterion than nuclear contours in distinguishing LNC from LC lymphomas. Although LC lymphomas have some features intermediate between SC and the noncleaved FCC lymphomas, they more closely resemble SC lymphomas. Finally morphometric analyses such as these provide an objective morphologic foundation for future prospective investigations of transformation-related phenomena; these studies may facilitate comparison of morphologic data with immunophenotype and genotype in non-Hodgkin's lymphomas and comparison of various other B-cell neoplasms with follicular center cell neoplasms.

Published
1990

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